dimensions differ from the
- // dimensions specified in the size() call in the sketch, for
- // 3D sketches, browsers will either not render or render the
- // scene incorrectly. To fix this, we need to adjust the
- // width and height attributes of the canvas.
- curElement.width = p.width = aWidth || 100;
- curElement.height = p.height = aHeight || 100;
- curContext = getGLContext(curElement);
- canTex = curContext.createTexture(); // texture
- textTex = curContext.createTexture(); // texture
- } catch(e_size) {
- Processing.debug(e_size);
- }
-
- if (!curContext) {
- throw "WebGL context is not supported on this browser.";
- }
-
- // Set defaults
- curContext.viewport(0, 0, curElement.width, curElement.height);
- curContext.enable(curContext.DEPTH_TEST);
- curContext.enable(curContext.BLEND);
- curContext.blendFunc(curContext.SRC_ALPHA, curContext.ONE_MINUS_SRC_ALPHA);
-
- // Create the program objects to render 2D (points, lines) and
- // 3D (spheres, boxes) shapes. Because 2D shapes are not lit,
- // lighting calculations could be ommitted from that program object.
- programObject2D = createProgramObject(curContext, vertexShaderSource2D, fragmentShaderSource2D);
-
- programObjectUnlitShape = createProgramObject(curContext, vShaderSrcUnlitShape, fShaderSrcUnlitShape);
-
- // Set the default point and line width for the 2D and unlit shapes.
- p.strokeWeight(1.0);
-
- // Now that the programs have been compiled, we can set the default
- // states for the lights.
- programObject3D = createProgramObject(curContext, vertexShaderSource3D, fragmentShaderSource3D);
- curContext.useProgram(programObject3D);
-
- // assume we aren't using textures by default
- uniformi("usingTexture3d", programObject3D, "usingTexture", usingTexture);
- // assume that we arn't tinting by default
- p.lightFalloff(1, 0, 0);
- p.shininess(1);
- p.ambient(255, 255, 255);
- p.specular(0, 0, 0);
- p.emissive(0, 0, 0);
-
- // Create buffers for 3D primitives
- boxBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ARRAY_BUFFER, boxBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, boxVerts, curContext.STATIC_DRAW);
-
- boxNormBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ARRAY_BUFFER, boxNormBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, boxNorms, curContext.STATIC_DRAW);
-
- boxOutlineBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ARRAY_BUFFER, boxOutlineBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, boxOutlineVerts, curContext.STATIC_DRAW);
-
- // used to draw the rectangle and the outline
- rectBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ARRAY_BUFFER, rectBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, rectVerts, curContext.STATIC_DRAW);
-
- rectNormBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ARRAY_BUFFER, rectNormBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, rectNorms, curContext.STATIC_DRAW);
-
- // The sphere vertices are specified dynamically since the user
- // can change the level of detail. Everytime the user does that
- // using sphereDetail(), the new vertices are calculated.
- sphereBuffer = curContext.createBuffer();
-
- lineBuffer = curContext.createBuffer();
-
- // Shape buffers
- fillBuffer = curContext.createBuffer();
- fillColorBuffer = curContext.createBuffer();
- strokeColorBuffer = curContext.createBuffer();
- shapeTexVBO = curContext.createBuffer();
-
- pointBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ARRAY_BUFFER, pointBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array([0, 0, 0]), curContext.STATIC_DRAW);
-
- textBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ARRAY_BUFFER, textBuffer );
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array([1,1,0,-1,1,0,-1,-1,0,1,-1,0]), curContext.STATIC_DRAW);
-
- textureBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ARRAY_BUFFER, textureBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array([0,0,1,0,1,1,0,1]), curContext.STATIC_DRAW);
-
- indexBuffer = curContext.createBuffer();
- curContext.bindBuffer(curContext.ELEMENT_ARRAY_BUFFER, indexBuffer);
- curContext.bufferData(curContext.ELEMENT_ARRAY_BUFFER, new Uint16Array([0,1,2,2,3,0]), curContext.STATIC_DRAW);
-
- cam = new PMatrix3D();
- cameraInv = new PMatrix3D();
- modelView = new PMatrix3D();
- modelViewInv = new PMatrix3D();
- projection = new PMatrix3D();
- p.camera();
- p.perspective();
-
- userMatrixStack = new PMatrixStack();
- userReverseMatrixStack = new PMatrixStack();
- // used by both curve and bezier, so just init here
- curveBasisMatrix = new PMatrix3D();
- curveToBezierMatrix = new PMatrix3D();
- curveDrawMatrix = new PMatrix3D();
- bezierDrawMatrix = new PMatrix3D();
- bezierBasisInverse = new PMatrix3D();
- bezierBasisMatrix = new PMatrix3D();
- bezierBasisMatrix.set(-1, 3, -3, 1, 3, -6, 3, 0, -3, 3, 0, 0, 1, 0, 0, 0);
-
- DrawingShared.prototype.size.apply(this, arguments);
- };
- }());
-
- ////////////////////////////////////////////////////////////////////////////
- // Lights
- ////////////////////////////////////////////////////////////////////////////
-
- /**
- * Adds an ambient light. Ambient light doesn't come from a specific direction,
- * the rays have light have bounced around so much that objects are evenly lit
- * from all sides. Ambient lights are almost always used in combination with
- * other types of lights. Lights need to be included in the draw() to
- * remain persistent in a looping program. Placing them in the setup()
- * of a looping program will cause them to only have an effect the first time
- * through the loop. The effect of the parameters is determined by the current
- * color mode.
- *
- * @param {int | float} r red or hue value
- * @param {int | float} g green or hue value
- * @param {int | float} b blue or hue value
- *
- * @param {int | float} x x position of light (used for falloff)
- * @param {int | float} y y position of light (used for falloff)
- * @param {int | float} z z position of light (used for falloff)
- *
- * @returns none
- *
- * @see lights
- * @see directionalLight
- * @see pointLight
- * @see spotLight
- */
- Drawing2D.prototype.ambientLight = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.ambientLight = function(r, g, b, x, y, z) {
- if (lightCount === PConstants.MAX_LIGHTS) {
- throw "can only create " + PConstants.MAX_LIGHTS + " lights";
- }
-
- var pos = new PVector(x, y, z);
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.mult(pos, pos);
-
- // Instead of calling p.color, we do the calculations ourselves to
- // reduce property lookups.
- var col = color$4(r, g, b, 0);
- var normalizedCol = [ ((col & PConstants.RED_MASK) >>> 16) / 255,
- ((col & PConstants.GREEN_MASK) >>> 8) / 255,
- (col & PConstants.BLUE_MASK) / 255 ];
-
- curContext.useProgram(programObject3D);
- uniformf("lights.color.3d." + lightCount, programObject3D, "lights" + lightCount + ".color", normalizedCol);
- uniformf("lights.position.3d." + lightCount, programObject3D, "lights" + lightCount + ".position", pos.array());
- uniformi("lights.type.3d." + lightCount, programObject3D, "lights" + lightCount + ".type", 0);
- uniformi("lightCount3d", programObject3D, "lightCount", ++lightCount);
- };
-
- /**
- * Adds a directional light. Directional light comes from one direction and
- * is stronger when hitting a surface squarely and weaker if it hits at a
- * gentle angle. After hitting a surface, a directional lights scatters in
- * all directions. Lights need to be included in the draw() to remain
- * persistent in a looping program. Placing them in the setup() of a
- * looping program will cause them to only have an effect the first time
- * through the loop. The affect of the
r,
g, and
b
- * parameters is determined by the current color mode. The nx,
- * ny, and nz parameters specify the direction the light is
- * facing. For example, setting ny to -1 will cause the geometry to be
- * lit from below (the light is facing directly upward).
- *
- * @param {int | float} r red or hue value
- * @param {int | float} g green or hue value
- * @param {int | float} b blue or hue value
- *
- * @param {int | float} nx direction along the x axis
- * @param {int | float} ny direction along the y axis
- * @param {int | float} nz direction along the z axis
- *
- * @returns none
- *
- * @see lights
- * @see ambientLight
- * @see pointLight
- * @see spotLight
- */
- Drawing2D.prototype.directionalLight = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.directionalLight = function(r, g, b, nx, ny, nz) {
- if (lightCount === PConstants.MAX_LIGHTS) {
- throw "can only create " + PConstants.MAX_LIGHTS + " lights";
- }
-
- curContext.useProgram(programObject3D);
-
- var mvm = new PMatrix3D();
- mvm.scale(1, -1, 1);
- mvm.apply(modelView.array());
- mvm = mvm.array();
-
- // We need to multiply the direction by the model view matrix, but
- // the mult function checks the w component of the vector, if it isn't
- // present, it uses 1, so we manually multiply.
- var dir = [
- mvm[0] * nx + mvm[4] * ny + mvm[8] * nz,
- mvm[1] * nx + mvm[5] * ny + mvm[9] * nz,
- mvm[2] * nx + mvm[6] * ny + mvm[10] * nz
- ];
-
- // Instead of calling p.color, we do the calculations ourselves to
- // reduce property lookups.
- var col = color$4(r, g, b, 0);
- var normalizedCol = [ ((col & PConstants.RED_MASK) >>> 16) / 255,
- ((col & PConstants.GREEN_MASK) >>> 8) / 255,
- (col & PConstants.BLUE_MASK) / 255 ];
-
- uniformf("lights.color.3d." + lightCount, programObject3D, "lights" + lightCount + ".color", normalizedCol);
- uniformf("lights.position.3d." + lightCount, programObject3D, "lights" + lightCount + ".position", dir);
- uniformi("lights.type.3d." + lightCount, programObject3D, "lights" + lightCount + ".type", 1);
- uniformi("lightCount3d", programObject3D, "lightCount", ++lightCount);
- };
-
- /**
- * Sets the falloff rates for point lights, spot lights, and ambient lights.
- * The parameters are used to determine the falloff with the following equation:
- *
- * d = distance from light position to vertex position
- * falloff = 1 / (CONSTANT + d * LINEAR + (d*d) * QUADRATIC)
- *
- * Like fill(), it affects only the elements which are created after it in the
- * code. The default value if LightFalloff(1.0, 0.0, 0.0). Thinking about an
- * ambient light with a falloff can be tricky. It is used, for example, if you
- * wanted a region of your scene to be lit ambiently one color and another region
- * to be lit ambiently by another color, you would use an ambient light with location
- * and falloff. You can think of it as a point light that doesn't care which direction
- * a surface is facing.
- *
- * @param {int | float} constant constant value for determining falloff
- * @param {int | float} linear linear value for determining falloff
- * @param {int | float} quadratic quadratic value for determining falloff
- *
- * @returns none
- *
- * @see lights
- * @see ambientLight
- * @see pointLight
- * @see spotLight
- * @see lightSpecular
- */
- Drawing2D.prototype.lightFalloff = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.lightFalloff = function(constant, linear, quadratic) {
- curContext.useProgram(programObject3D);
- uniformf("falloff3d", programObject3D, "falloff", [constant, linear, quadratic]);
- };
-
- /**
- * Sets the specular color for lights. Like fill(), it affects only the
- * elements which are created after it in the code. Specular refers to light
- * which bounces off a surface in a perferred direction (rather than bouncing
- * in all directions like a diffuse light) and is used for creating highlights.
- * The specular quality of a light interacts with the specular material qualities
- * set through the specular() and shininess() functions.
- *
- * @param {int | float} r red or hue value
- * @param {int | float} g green or hue value
- * @param {int | float} b blue or hue value
- *
- * @returns none
- *
- * @see lights
- * @see ambientLight
- * @see pointLight
- * @see spotLight
- */
- Drawing2D.prototype.lightSpecular = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.lightSpecular = function(r, g, b) {
-
- // Instead of calling p.color, we do the calculations ourselves to
- // reduce property lookups.
- var col = color$4(r, g, b, 0);
- var normalizedCol = [ ((col & PConstants.RED_MASK) >>> 16) / 255,
- ((col & PConstants.GREEN_MASK) >>> 8) / 255,
- (col & PConstants.BLUE_MASK) / 255 ];
-
- curContext.useProgram(programObject3D);
- uniformf("specular3d", programObject3D, "specular", normalizedCol);
- };
-
- /**
- * Sets the default ambient light, directional light, falloff, and specular
- * values. The defaults are ambientLight(128, 128, 128) and
- * directionalLight(128, 128, 128, 0, 0, -1), lightFalloff(1, 0, 0), and
- * lightSpecular(0, 0, 0). Lights need to be included in the draw() to remain
- * persistent in a looping program. Placing them in the setup() of a looping
- * program will cause them to only have an effect the first time through the
- * loop.
- *
- * @returns none
- *
- * @see ambientLight
- * @see directionalLight
- * @see pointLight
- * @see spotLight
- * @see noLights
- *
- */
- p.lights = function() {
- p.ambientLight(128, 128, 128);
- p.directionalLight(128, 128, 128, 0, 0, -1);
- p.lightFalloff(1, 0, 0);
- p.lightSpecular(0, 0, 0);
- };
-
- /**
- * Adds a point light. Lights need to be included in the draw() to remain
- * persistent in a looping program. Placing them in the setup() of a
- * looping program will cause them to only have an effect the first time through
- * the loop. The affect of the r, g, and b parameters
- * is determined by the current color mode. The x, y, and z
- * parameters set the position of the light.
- *
- * @param {int | float} r red or hue value
- * @param {int | float} g green or hue value
- * @param {int | float} b blue or hue value
- * @param {int | float} x x coordinate of the light
- * @param {int | float} y y coordinate of the light
- * @param {int | float} z z coordinate of the light
- *
- * @returns none
- *
- * @see lights
- * @see directionalLight
- * @see ambientLight
- * @see spotLight
- */
- Drawing2D.prototype.pointLight = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.pointLight = function(r, g, b, x, y, z) {
- if (lightCount === PConstants.MAX_LIGHTS) {
- throw "can only create " + PConstants.MAX_LIGHTS + " lights";
- }
-
- // Place the point in view space once instead of once per vertex
- // in the shader.
- var pos = new PVector(x, y, z);
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.mult(pos, pos);
-
- // Instead of calling p.color, we do the calculations ourselves to
- // reduce property lookups.
- var col = color$4(r, g, b, 0);
- var normalizedCol = [ ((col & PConstants.RED_MASK) >>> 16) / 255,
- ((col & PConstants.GREEN_MASK) >>> 8) / 255,
- (col & PConstants.BLUE_MASK) / 255 ];
-
- curContext.useProgram(programObject3D);
- uniformf("lights.color.3d." + lightCount, programObject3D, "lights" + lightCount + ".color", normalizedCol);
- uniformf("lights.position.3d." + lightCount, programObject3D, "lights" + lightCount + ".position", pos.array());
- uniformi("lights.type.3d." + lightCount, programObject3D, "lights" + lightCount + ".type", 2);
- uniformi("lightCount3d", programObject3D, "lightCount", ++lightCount);
- };
-
- /**
- * Disable all lighting. Lighting is turned off by default and enabled with
- * the lights() method. This function can be used to disable lighting so
- * that 2D geometry (which does not require lighting) can be drawn after a
- * set of lighted 3D geometry.
- *
- * @returns none
- *
- * @see lights
- */
- Drawing2D.prototype.noLights = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.noLights = function() {
- lightCount = 0;
- curContext.useProgram(programObject3D);
- uniformi("lightCount3d", programObject3D, "lightCount", lightCount);
- };
-
- /**
- * Adds a spot light. Lights need to be included in the draw() to
- * remain persistent in a looping program. Placing them in the setup()
- * of a looping program will cause them to only have an effect the first time
- * through the loop. The affect of the r, g, and b parameters
- * is determined by the current color mode. The x, y, and z
- * parameters specify the position of the light and nx, ny, nz
- * specify the direction or light. The angle parameter affects angle of the
- * spotlight cone.
- *
- * @param {int | float} r red or hue value
- * @param {int | float} g green or hue value
- * @param {int | float} b blue or hue value
- * @param {int | float} x coordinate of the light
- * @param {int | float} y coordinate of the light
- * @param {int | float} z coordinate of the light
- * @param {int | float} nx direction along the x axis
- * @param {int | float} ny direction along the y axis
- * @param {int | float} nz direction along the z axis
- * @param {float} angle angle of the spotlight cone
- * @param {float} concentration exponent determining the center bias of the cone
- *
- * @returns none
- *
- * @see lights
- * @see directionalLight
- * @see ambientLight
- * @see pointLight
- */
- Drawing2D.prototype.spotLight = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.spotLight = function(r, g, b, x, y, z, nx, ny, nz, angle, concentration) {
- if (lightCount === PConstants.MAX_LIGHTS) {
- throw "can only create " + PConstants.MAX_LIGHTS + " lights";
- }
-
- curContext.useProgram(programObject3D);
-
- // multiply the position and direction by the model view matrix
- // once per object rather than once per vertex.
- var pos = new PVector(x, y, z);
- var mvm = new PMatrix3D();
- mvm.scale(1, -1, 1);
- mvm.apply(modelView.array());
- mvm.mult(pos, pos);
-
- // Convert to array since we need to directly access the elements.
- mvm = mvm.array();
-
- // We need to multiply the direction by the model view matrix, but
- // the mult function checks the w component of the vector, if it isn't
- // present, it uses 1, so we use a very small value as a work around.
- var dir = [
- mvm[0] * nx + mvm[4] * ny + mvm[8] * nz,
- mvm[1] * nx + mvm[5] * ny + mvm[9] * nz,
- mvm[2] * nx + mvm[6] * ny + mvm[10] * nz
- ];
-
- // Instead of calling p.color, we do the calculations ourselves to
- // reduce property lookups.
- var col = color$4(r, g, b, 0);
- var normalizedCol = [ ((col & PConstants.RED_MASK) >>> 16) / 255,
- ((col & PConstants.GREEN_MASK) >>> 8) / 255,
- (col & PConstants.BLUE_MASK) / 255 ];
-
- uniformf("lights.color.3d." + lightCount, programObject3D, "lights" + lightCount + ".color", normalizedCol);
- uniformf("lights.position.3d." + lightCount, programObject3D, "lights" + lightCount + ".position", pos.array());
- uniformf("lights.direction.3d." + lightCount, programObject3D, "lights" + lightCount + ".direction", dir);
- uniformf("lights.concentration.3d." + lightCount, programObject3D, "lights" + lightCount + ".concentration", concentration);
- uniformf("lights.angle.3d." + lightCount, programObject3D, "lights" + lightCount + ".angle", angle);
- uniformi("lights.type.3d." + lightCount, programObject3D, "lights" + lightCount + ".type", 3);
- uniformi("lightCount3d", programObject3D, "lightCount", ++lightCount);
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // Camera functions
- ////////////////////////////////////////////////////////////////////////////
-
- /**
- * The beginCamera() and endCamera() functions enable advanced customization of the camera space.
- * The functions are useful if you want to more control over camera movement, however for most users, the camera()
- * function will be sufficient.
The camera functions will replace any transformations (such as rotate()
- * or translate()) that occur before them in draw(), but they will not automatically replace the camera
- * transform itself. For this reason, camera functions should be placed at the beginning of draw() (so that
- * transformations happen afterwards), and the camera() function can be used after beginCamera() if
- * you want to reset the camera before applying transformations.
This function sets the matrix mode to the
- * camera matrix so calls such as translate(), rotate(), applyMatrix() and resetMatrix() affect the camera.
- * beginCamera() should always be used with a following endCamera() and pairs of beginCamera() and
- * endCamera() cannot be nested.
- *
- * @see camera
- * @see endCamera
- * @see applyMatrix
- * @see resetMatrix
- * @see translate
- * @see rotate
- * @see scale
- */
- Drawing2D.prototype.beginCamera = function() {
- throw ("beginCamera() is not available in 2D mode");
- };
-
- Drawing3D.prototype.beginCamera = function() {
- if (manipulatingCamera) {
- throw ("You cannot call beginCamera() again before calling endCamera()");
- }
- manipulatingCamera = true;
- modelView = cameraInv;
- modelViewInv = cam;
- };
-
- /**
- * The beginCamera() and endCamera() functions enable advanced customization of the camera space.
- * Please see the reference for beginCamera() for a description of how the functions are used.
- *
- * @see beginCamera
- */
- Drawing2D.prototype.endCamera = function() {
- throw ("endCamera() is not available in 2D mode");
- };
-
- Drawing3D.prototype.endCamera = function() {
- if (!manipulatingCamera) {
- throw ("You cannot call endCamera() before calling beginCamera()");
- }
- modelView.set(cam);
- modelViewInv.set(cameraInv);
- manipulatingCamera = false;
- };
-
- /**
- * Sets the position of the camera through setting the eye position, the center of the scene, and which axis is facing
- * upward. Moving the eye position and the direction it is pointing (the center of the scene) allows the images to be
- * seen from different angles. The version without any parameters sets the camera to the default position, pointing to
- * the center of the display window with the Y axis as up. The default values are camera(width/2.0, height/2.0,
- * (height/2.0) / tan(PI*60.0 / 360.0), width/2.0, height/2.0, 0, 0, 1, 0). This function is similar to gluLookAt()
- * in OpenGL, but it first clears the current camera settings.
- *
- * @param {float} eyeX x-coordinate for the eye
- * @param {float} eyeY y-coordinate for the eye
- * @param {float} eyeZ z-coordinate for the eye
- * @param {float} centerX x-coordinate for the center of the scene
- * @param {float} centerY y-coordinate for the center of the scene
- * @param {float} centerZ z-coordinate for the center of the scene
- * @param {float} upX usually 0.0, 1.0, -1.0
- * @param {float} upY usually 0.0, 1.0, -1.0
- * @param {float} upZ usually 0.0, 1.0, -1.0
- *
- * @see beginCamera
- * @see endCamera
- * @see frustum
- */
- p.camera = function(eyeX, eyeY, eyeZ, centerX, centerY, centerZ, upX, upY, upZ) {
- if (eyeX === undef) {
- // Workaround if createGraphics is used.
- cameraX = p.width / 2;
- cameraY = p.height / 2;
- cameraZ = cameraY / Math.tan(cameraFOV / 2);
- eyeX = cameraX;
- eyeY = cameraY;
- eyeZ = cameraZ;
- centerX = cameraX;
- centerY = cameraY;
- centerZ = 0;
- upX = 0;
- upY = 1;
- upZ = 0;
- }
-
- var z = new PVector(eyeX - centerX, eyeY - centerY, eyeZ - centerZ);
- var y = new PVector(upX, upY, upZ);
- z.normalize();
- var x = PVector.cross(y, z);
- y = PVector.cross(z, x);
- x.normalize();
- y.normalize();
-
- var xX = x.x,
- xY = x.y,
- xZ = x.z;
-
- var yX = y.x,
- yY = y.y,
- yZ = y.z;
-
- var zX = z.x,
- zY = z.y,
- zZ = z.z;
-
- cam.set(xX, xY, xZ, 0, yX, yY, yZ, 0, zX, zY, zZ, 0, 0, 0, 0, 1);
-
- cam.translate(-eyeX, -eyeY, -eyeZ);
-
- cameraInv.reset();
- cameraInv.invApply(xX, xY, xZ, 0, yX, yY, yZ, 0, zX, zY, zZ, 0, 0, 0, 0, 1);
-
- cameraInv.translate(eyeX, eyeY, eyeZ);
-
- modelView.set(cam);
- modelViewInv.set(cameraInv);
- };
-
- /**
- * Sets a perspective projection applying foreshortening, making distant objects appear smaller than closer ones. The
- * parameters define a viewing volume with the shape of truncated pyramid. Objects near to the front of the volume appear
- * their actual size, while farther objects appear smaller. This projection simulates the perspective of the world more
- * accurately than orthographic projection. The version of perspective without parameters sets the default perspective and
- * the version with four parameters allows the programmer to set the area precisely. The default values are:
- * perspective(PI/3.0, width/height, cameraZ/10.0, cameraZ*10.0) where cameraZ is ((height/2.0) / tan(PI*60.0/360.0));
- *
- * @param {float} fov field-of-view angle (in radians) for vertical direction
- * @param {float} aspect ratio of width to height
- * @param {float} zNear z-position of nearest clipping plane
- * @param {float} zFar z-positions of farthest clipping plane
- */
- p.perspective = function(fov, aspect, near, far) {
- if (arguments.length === 0) {
- //in case canvas is resized
- cameraY = curElement.height / 2;
- cameraZ = cameraY / Math.tan(cameraFOV / 2);
- cameraNear = cameraZ / 10;
- cameraFar = cameraZ * 10;
- cameraAspect = p.width / p.height;
- fov = cameraFOV;
- aspect = cameraAspect;
- near = cameraNear;
- far = cameraFar;
- }
-
- var yMax, yMin, xMax, xMin;
- yMax = near * Math.tan(fov / 2);
- yMin = -yMax;
- xMax = yMax * aspect;
- xMin = yMin * aspect;
- p.frustum(xMin, xMax, yMin, yMax, near, far);
- };
-
- /**
- * Sets a perspective matrix defined through the parameters. Works like glFrustum, except it wipes out the current
- * perspective matrix rather than muliplying itself with it.
- *
- * @param {float} left left coordinate of the clipping plane
- * @param {float} right right coordinate of the clipping plane
- * @param {float} bottom bottom coordinate of the clipping plane
- * @param {float} top top coordinate of the clipping plane
- * @param {float} near near coordinate of the clipping plane
- * @param {float} far far coordinate of the clipping plane
- *
- * @see beginCamera
- * @see camera
- * @see endCamera
- * @see perspective
- */
- Drawing2D.prototype.frustum = function() {
- throw("Processing.js: frustum() is not supported in 2D mode");
- };
-
- Drawing3D.prototype.frustum = function(left, right, bottom, top, near, far) {
- frustumMode = true;
- projection = new PMatrix3D();
- projection.set((2 * near) / (right - left), 0, (right + left) / (right - left),
- 0, 0, (2 * near) / (top - bottom), (top + bottom) / (top - bottom),
- 0, 0, 0, -(far + near) / (far - near), -(2 * far * near) / (far - near),
- 0, 0, -1, 0);
- var proj = new PMatrix3D();
- proj.set(projection);
- proj.transpose();
- curContext.useProgram(programObject2D);
- uniformMatrix("projection2d", programObject2D, "projection", false, proj.array());
- curContext.useProgram(programObject3D);
- uniformMatrix("projection3d", programObject3D, "projection", false, proj.array());
- curContext.useProgram(programObjectUnlitShape);
- uniformMatrix("uProjectionUS", programObjectUnlitShape, "uProjection", false, proj.array());
- };
-
- /**
- * Sets an orthographic projection and defines a parallel clipping volume. All objects with the same dimension appear
- * the same size, regardless of whether they are near or far from the camera. The parameters to this function specify
- * the clipping volume where left and right are the minimum and maximum x values, top and bottom are the minimum and
- * maximum y values, and near and far are the minimum and maximum z values. If no parameters are given, the default
- * is used: ortho(0, width, 0, height, -10, 10).
- *
- * @param {float} left left plane of the clipping volume
- * @param {float} right right plane of the clipping volume
- * @param {float} bottom bottom plane of the clipping volume
- * @param {float} top top plane of the clipping volume
- * @param {float} near maximum distance from the origin to the viewer
- * @param {float} far maximum distance from the origin away from the viewer
- */
- p.ortho = function(left, right, bottom, top, near, far) {
- if (arguments.length === 0) {
- left = 0;
- right = p.width;
- bottom = 0;
- top = p.height;
- near = -10;
- far = 10;
- }
-
- var x = 2 / (right - left);
- var y = 2 / (top - bottom);
- var z = -2 / (far - near);
-
- var tx = -(right + left) / (right - left);
- var ty = -(top + bottom) / (top - bottom);
- var tz = -(far + near) / (far - near);
-
- projection = new PMatrix3D();
- projection.set(x, 0, 0, tx, 0, y, 0, ty, 0, 0, z, tz, 0, 0, 0, 1);
-
- var proj = new PMatrix3D();
- proj.set(projection);
- proj.transpose();
- curContext.useProgram(programObject2D);
- uniformMatrix("projection2d", programObject2D, "projection", false, proj.array());
- curContext.useProgram(programObject3D);
- uniformMatrix("projection3d", programObject3D, "projection", false, proj.array());
- curContext.useProgram(programObjectUnlitShape);
- uniformMatrix("uProjectionUS", programObjectUnlitShape, "uProjection", false, proj.array());
- frustumMode = false;
- };
- /**
- * The printProjection() prints the current projection matrix to the text window.
- */
- p.printProjection = function() {
- projection.print();
- };
- /**
- * The printCamera() function prints the current camera matrix.
- */
- p.printCamera = function() {
- cam.print();
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // Shapes
- ////////////////////////////////////////////////////////////////////////////
- /**
- * The box() function renders a box. A box is an extruded rectangle. A box with equal dimension on all sides is a cube.
- * Calling this function with only one parameter will create a cube.
- *
- * @param {int|float} w dimension of the box in the x-dimension
- * @param {int|float} h dimension of the box in the y-dimension
- * @param {int|float} d dimension of the box in the z-dimension
- */
- Drawing2D.prototype.box = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.box = function(w, h, d) {
- // user can uniformly scale the box by
- // passing in only one argument.
- if (!h || !d) {
- h = d = w;
- }
-
- // Modeling transformation
- var model = new PMatrix3D();
- model.scale(w, h, d);
-
- // viewing transformation needs to have Y flipped
- // becuase that's what Processing does.
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- if (doFill) {
- curContext.useProgram(programObject3D);
- uniformMatrix("model3d", programObject3D, "model", false, model.array());
- uniformMatrix("view3d", programObject3D, "view", false, view.array());
- // fix stitching problems. (lines get occluded by triangles
- // since they share the same depth values). This is not entirely
- // working, but it's a start for drawing the outline. So
- // developers can start playing around with styles.
- curContext.enable(curContext.POLYGON_OFFSET_FILL);
- curContext.polygonOffset(1, 1);
- uniformf("color3d", programObject3D, "color", fillStyle);
-
- // Calculating the normal matrix can be expensive, so only
- // do it if it's necessary
- if(lightCount > 0){
- // Create the normal transformation matrix
- var v = new PMatrix3D();
- v.set(view);
-
- var m = new PMatrix3D();
- m.set(model);
-
- v.mult(m);
-
- var normalMatrix = new PMatrix3D();
- normalMatrix.set(v);
- normalMatrix.invert();
- normalMatrix.transpose();
-
- uniformMatrix("normalTransform3d", programObject3D, "normalTransform", false, normalMatrix.array());
- vertexAttribPointer("normal3d", programObject3D, "Normal", 3, boxNormBuffer);
- }
- else{
- disableVertexAttribPointer("normal3d", programObject3D, "Normal");
- }
-
- vertexAttribPointer("vertex3d", programObject3D, "Vertex", 3, boxBuffer);
-
- // Turn off per vertex colors
- disableVertexAttribPointer("aColor3d", programObject3D, "aColor");
- disableVertexAttribPointer("aTexture3d", programObject3D, "aTexture");
-
- curContext.drawArrays(curContext.TRIANGLES, 0, boxVerts.length / 3);
- curContext.disable(curContext.POLYGON_OFFSET_FILL);
- }
-
- if (lineWidth > 0 && doStroke) {
- curContext.useProgram(programObject2D);
- uniformMatrix("model2d", programObject2D, "model", false, model.array());
- uniformMatrix("view2d", programObject2D, "view", false, view.array());
- uniformf("color2d", programObject2D, "color", strokeStyle);
- uniformi("picktype2d", programObject2D, "picktype", 0);
- vertexAttribPointer("vertex2d", programObject2D, "Vertex", 3, boxOutlineBuffer);
- disableVertexAttribPointer("aTextureCoord2d", programObject2D, "aTextureCoord");
- curContext.drawArrays(curContext.LINES, 0, boxOutlineVerts.length / 3);
- }
- };
-
- /**
- * The initSphere() function is a helper function used by sphereDetail()
- * This function creates and stores sphere vertices every time the user changes sphere detail.
- *
- * @see #sphereDetail
- */
- var initSphere = function() {
- var i;
- sphereVerts = [];
-
- for (i = 0; i < sphereDetailU; i++) {
- sphereVerts.push(0);
- sphereVerts.push(-1);
- sphereVerts.push(0);
- sphereVerts.push(sphereX[i]);
- sphereVerts.push(sphereY[i]);
- sphereVerts.push(sphereZ[i]);
- }
- sphereVerts.push(0);
- sphereVerts.push(-1);
- sphereVerts.push(0);
- sphereVerts.push(sphereX[0]);
- sphereVerts.push(sphereY[0]);
- sphereVerts.push(sphereZ[0]);
-
- var v1, v11, v2;
-
- // middle rings
- var voff = 0;
- for (i = 2; i < sphereDetailV; i++) {
- v1 = v11 = voff;
- voff += sphereDetailU;
- v2 = voff;
- for (var j = 0; j < sphereDetailU; j++) {
- sphereVerts.push(sphereX[v1]);
- sphereVerts.push(sphereY[v1]);
- sphereVerts.push(sphereZ[v1++]);
- sphereVerts.push(sphereX[v2]);
- sphereVerts.push(sphereY[v2]);
- sphereVerts.push(sphereZ[v2++]);
- }
-
- // close each ring
- v1 = v11;
- v2 = voff;
-
- sphereVerts.push(sphereX[v1]);
- sphereVerts.push(sphereY[v1]);
- sphereVerts.push(sphereZ[v1]);
- sphereVerts.push(sphereX[v2]);
- sphereVerts.push(sphereY[v2]);
- sphereVerts.push(sphereZ[v2]);
- }
-
- // add the northern cap
- for (i = 0; i < sphereDetailU; i++) {
- v2 = voff + i;
-
- sphereVerts.push(sphereX[v2]);
- sphereVerts.push(sphereY[v2]);
- sphereVerts.push(sphereZ[v2]);
- sphereVerts.push(0);
- sphereVerts.push(1);
- sphereVerts.push(0);
- }
-
- sphereVerts.push(sphereX[voff]);
- sphereVerts.push(sphereY[voff]);
- sphereVerts.push(sphereZ[voff]);
- sphereVerts.push(0);
- sphereVerts.push(1);
- sphereVerts.push(0);
-
- //set the buffer data
- curContext.bindBuffer(curContext.ARRAY_BUFFER, sphereBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(sphereVerts), curContext.STATIC_DRAW);
- };
-
- /**
- * The sphereDetail() function controls the detail used to render a sphere by adjusting the number of
- * vertices of the sphere mesh. The default resolution is 30, which creates
- * a fairly detailed sphere definition with vertices every 360/30 = 12
- * degrees. If you're going to render a great number of spheres per frame,
- * it is advised to reduce the level of detail using this function.
- * The setting stays active until sphereDetail() is called again with
- * a new parameter and so should not be called prior to every
- * sphere() statement, unless you wish to render spheres with
- * different settings, e.g. using less detail for smaller spheres or ones
- * further away from the camera. To control the detail of the horizontal
- * and vertical resolution independently, use the version of the functions
- * with two parameters. Calling this function with one parameter sets the number of segments
- *(minimum of 3) used per full circle revolution. This is equivalent to calling the function with
- * two identical values.
- *
- * @param {int} ures number of segments used horizontally (longitudinally) per full circle revolution
- * @param {int} vres number of segments used vertically (latitudinally) from top to bottom
- *
- * @see #sphere()
- */
- p.sphereDetail = function(ures, vres) {
- var i;
-
- if (arguments.length === 1) {
- ures = vres = arguments[0];
- }
-
- if (ures < 3) {
- ures = 3;
- } // force a minimum res
- if (vres < 2) {
- vres = 2;
- } // force a minimum res
- // if it hasn't changed do nothing
- if ((ures === sphereDetailU) && (vres === sphereDetailV)) {
- return;
- }
-
- var delta = PConstants.SINCOS_LENGTH / ures;
- var cx = new Float32Array(ures);
- var cz = new Float32Array(ures);
- // calc unit circle in XZ plane
- for (i = 0; i < ures; i++) {
- cx[i] = cosLUT[((i * delta) % PConstants.SINCOS_LENGTH) | 0];
- cz[i] = sinLUT[((i * delta) % PConstants.SINCOS_LENGTH) | 0];
- }
-
- // computing vertexlist
- // vertexlist starts at south pole
- var vertCount = ures * (vres - 1) + 2;
- var currVert = 0;
-
- // re-init arrays to store vertices
- sphereX = new Float32Array(vertCount);
- sphereY = new Float32Array(vertCount);
- sphereZ = new Float32Array(vertCount);
-
- var angle_step = (PConstants.SINCOS_LENGTH * 0.5) / vres;
- var angle = angle_step;
-
- // step along Y axis
- for (i = 1; i < vres; i++) {
- var curradius = sinLUT[(angle % PConstants.SINCOS_LENGTH) | 0];
- var currY = -cosLUT[(angle % PConstants.SINCOS_LENGTH) | 0];
- for (var j = 0; j < ures; j++) {
- sphereX[currVert] = cx[j] * curradius;
- sphereY[currVert] = currY;
- sphereZ[currVert++] = cz[j] * curradius;
- }
- angle += angle_step;
- }
- sphereDetailU = ures;
- sphereDetailV = vres;
-
- // make the sphere verts and norms
- initSphere();
- };
-
- /**
- * The sphere() function draws a sphere with radius r centered at coordinate 0, 0, 0.
- * A sphere is a hollow ball made from tessellated triangles.
- *
- * @param {int|float} r the radius of the sphere
- */
- Drawing2D.prototype.sphere = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.sphere = function() {
- var sRad = arguments[0];
-
- if ((sphereDetailU < 3) || (sphereDetailV < 2)) {
- p.sphereDetail(30);
- }
-
- // Modeling transformation
- var model = new PMatrix3D();
- model.scale(sRad, sRad, sRad);
-
- // viewing transformation needs to have Y flipped
- // becuase that's what Processing does.
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- if (doFill) {
- // Calculating the normal matrix can be expensive, so only
- // do it if it's necessary
- if(lightCount > 0){
- // Create a normal transformation matrix
- var v = new PMatrix3D();
- v.set(view);
-
- var m = new PMatrix3D();
- m.set(model);
-
- v.mult(m);
-
- var normalMatrix = new PMatrix3D();
- normalMatrix.set(v);
- normalMatrix.invert();
- normalMatrix.transpose();
-
- uniformMatrix("normalTransform3d", programObject3D, "normalTransform", false, normalMatrix.array());
- vertexAttribPointer("normal3d", programObject3D, "Normal", 3, sphereBuffer);
- }
- else{
- disableVertexAttribPointer("normal3d", programObject3D, "Normal");
- }
-
- curContext.useProgram(programObject3D);
- disableVertexAttribPointer("aTexture3d", programObject3D, "aTexture");
-
- uniformMatrix("model3d", programObject3D, "model", false, model.array());
- uniformMatrix("view3d", programObject3D, "view", false, view.array());
- vertexAttribPointer("vertex3d", programObject3D, "Vertex", 3, sphereBuffer);
-
- // Turn off per vertex colors
- disableVertexAttribPointer("aColor3d", programObject3D, "aColor");
-
- // fix stitching problems. (lines get occluded by triangles
- // since they share the same depth values). This is not entirely
- // working, but it's a start for drawing the outline. So
- // developers can start playing around with styles.
- curContext.enable(curContext.POLYGON_OFFSET_FILL);
- curContext.polygonOffset(1, 1);
- uniformf("color3d", programObject3D, "color", fillStyle);
- curContext.drawArrays(curContext.TRIANGLE_STRIP, 0, sphereVerts.length / 3);
- curContext.disable(curContext.POLYGON_OFFSET_FILL);
- }
-
- if (lineWidth > 0 && doStroke) {
- curContext.useProgram(programObject2D);
- uniformMatrix("model2d", programObject2D, "model", false, model.array());
- uniformMatrix("view2d", programObject2D, "view", false, view.array());
- vertexAttribPointer("vertex2d", programObject2D, "Vertex", 3, sphereBuffer);
- disableVertexAttribPointer("aTextureCoord2d", programObject2D, "aTextureCoord");
- uniformf("color2d", programObject2D, "color", strokeStyle);
- uniformi("picktype2d", programObject2D, "picktype", 0);
- curContext.drawArrays(curContext.LINE_STRIP, 0, sphereVerts.length / 3);
- }
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // Coordinates
- ////////////////////////////////////////////////////////////////////////////
-
- /**
- * Returns the three-dimensional X, Y, Z position in model space. This returns
- * the X value for a given coordinate based on the current set of transformations
- * (scale, rotate, translate, etc.) The X value can be used to place an object
- * in space relative to the location of the original point once the transformations
- * are no longer in use.
- *
- *
- * @param {int | float} x 3D x coordinate to be mapped
- * @param {int | float} y 3D y coordinate to be mapped
- * @param {int | float} z 3D z coordinate to be mapped
- *
- * @returns {float}
- *
- * @see modelY
- * @see modelZ
- */
- p.modelX = function(x, y, z) {
- var mv = modelView.array();
- var ci = cameraInv.array();
-
- var ax = mv[0] * x + mv[1] * y + mv[2] * z + mv[3];
- var ay = mv[4] * x + mv[5] * y + mv[6] * z + mv[7];
- var az = mv[8] * x + mv[9] * y + mv[10] * z + mv[11];
- var aw = mv[12] * x + mv[13] * y + mv[14] * z + mv[15];
-
- var ox = ci[0] * ax + ci[1] * ay + ci[2] * az + ci[3] * aw;
- var ow = ci[12] * ax + ci[13] * ay + ci[14] * az + ci[15] * aw;
-
- return (ow !== 0) ? ox / ow : ox;
- };
-
- /**
- * Returns the three-dimensional X, Y, Z position in model space. This returns
- * the Y value for a given coordinate based on the current set of transformations
- * (scale, rotate, translate, etc.) The Y value can be used to place an object in
- * space relative to the location of the original point once the transformations
- * are no longer in use.
- *
- *
- * @param {int | float} x 3D x coordinate to be mapped
- * @param {int | float} y 3D y coordinate to be mapped
- * @param {int | float} z 3D z coordinate to be mapped
- *
- * @returns {float}
- *
- * @see modelX
- * @see modelZ
- */
- p.modelY = function(x, y, z) {
- var mv = modelView.array();
- var ci = cameraInv.array();
-
- var ax = mv[0] * x + mv[1] * y + mv[2] * z + mv[3];
- var ay = mv[4] * x + mv[5] * y + mv[6] * z + mv[7];
- var az = mv[8] * x + mv[9] * y + mv[10] * z + mv[11];
- var aw = mv[12] * x + mv[13] * y + mv[14] * z + mv[15];
-
- var oy = ci[4] * ax + ci[5] * ay + ci[6] * az + ci[7] * aw;
- var ow = ci[12] * ax + ci[13] * ay + ci[14] * az + ci[15] * aw;
-
- return (ow !== 0) ? oy / ow : oy;
- };
-
- /**
- * Returns the three-dimensional X, Y, Z position in model space. This returns
- * the Z value for a given coordinate based on the current set of transformations
- * (scale, rotate, translate, etc.) The Z value can be used to place an object in
- * space relative to the location of the original point once the transformations
- * are no longer in use.
- *
- * @param {int | float} x 3D x coordinate to be mapped
- * @param {int | float} y 3D y coordinate to be mapped
- * @param {int | float} z 3D z coordinate to be mapped
- *
- * @returns {float}
- *
- * @see modelX
- * @see modelY
- */
- p.modelZ = function(x, y, z) {
- var mv = modelView.array();
- var ci = cameraInv.array();
-
- var ax = mv[0] * x + mv[1] * y + mv[2] * z + mv[3];
- var ay = mv[4] * x + mv[5] * y + mv[6] * z + mv[7];
- var az = mv[8] * x + mv[9] * y + mv[10] * z + mv[11];
- var aw = mv[12] * x + mv[13] * y + mv[14] * z + mv[15];
-
- var oz = ci[8] * ax + ci[9] * ay + ci[10] * az + ci[11] * aw;
- var ow = ci[12] * ax + ci[13] * ay + ci[14] * az + ci[15] * aw;
-
- return (ow !== 0) ? oz / ow : oz;
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // Material Properties
- ////////////////////////////////////////////////////////////////////////////
-
- /**
- * Sets the ambient reflectance for shapes drawn to the screen. This is
- * combined with the ambient light component of environment. The color
- * components set through the parameters define the reflectance. For example in
- * the default color mode, setting v1=255, v2=126, v3=0, would cause all the
- * red light to reflect and half of the green light to reflect. Used in combination
- * with emissive(), specular(), and shininess() in setting
- * the materal properties of shapes.
- *
- * @param {int | float} gray
- *
- * @returns none
- *
- * @see emissive
- * @see specular
- * @see shininess
- */
- Drawing2D.prototype.ambient = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.ambient = function(v1, v2, v3) {
- curContext.useProgram(programObject3D);
- uniformi("usingMat3d", programObject3D, "usingMat", true);
- var col = p.color(v1, v2, v3);
- uniformf("mat_ambient3d", programObject3D, "mat_ambient", p.color.toGLArray(col).slice(0, 3));
- };
-
- /**
- * Sets the emissive color of the material used for drawing shapes
- * drawn to the screen. Used in combination with ambient(), specular(),
- * and shininess() in setting the material properties of shapes.
- *
- * Can be called in the following ways:
- *
- * emissive(gray)
- * @param {int | float} gray number specifying value between white and black
- *
- * emissive(color)
- * @param {color} color any value of the color datatype
- *
- * emissive(v1, v2, v3)
- * @param {int | float} v1 red or hue value
- * @param {int | float} v2 green or saturation value
- * @param {int | float} v3 blue or brightness value
- *
- * @returns none
- *
- * @see ambient
- * @see specular
- * @see shininess
- */
- Drawing2D.prototype.emissive = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.emissive = function(v1, v2, v3) {
- curContext.useProgram(programObject3D);
- uniformi("usingMat3d", programObject3D, "usingMat", true);
- var col = p.color(v1, v2, v3);
- uniformf("mat_emissive3d", programObject3D, "mat_emissive", p.color.toGLArray(col).slice(0, 3));
- };
-
- /**
- * Sets the amount of gloss in the surface of shapes. Used in combination with
- * ambient(), specular(), and emissive() in setting the
- * material properties of shapes.
- *
- * @param {float} shine degree of shininess
- *
- * @returns none
- */
- Drawing2D.prototype.shininess = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.shininess = function(shine) {
- curContext.useProgram(programObject3D);
- uniformi("usingMat3d", programObject3D, "usingMat", true);
- uniformf("shininess3d", programObject3D, "shininess", shine);
- };
-
- /**
- * Sets the specular color of the materials used for shapes drawn to the screen,
- * which sets the color of hightlights. Specular refers to light which bounces
- * off a surface in a perferred direction (rather than bouncing in all directions
- * like a diffuse light). Used in combination with emissive(), ambient(), and
- * shininess() in setting the material properties of shapes.
- *
- * Can be called in the following ways:
- *
- * specular(gray)
- * @param {int | float} gray number specifying value between white and black
- *
- * specular(gray, alpha)
- * @param {int | float} gray number specifying value between white and black
- * @param {int | float} alpha opacity
- *
- * specular(color)
- * @param {color} color any value of the color datatype
- *
- * specular(v1, v2, v3)
- * @param {int | float} v1 red or hue value
- * @param {int | float} v2 green or saturation value
- * @param {int | float} v3 blue or brightness value
- *
- * specular(v1, v2, v3, alpha)
- * @param {int | float} v1 red or hue value
- * @param {int | float} v2 green or saturation value
- * @param {int | float} v3 blue or brightness value
- * @param {int | float} alpha opacity
- *
- * @returns none
- *
- * @see ambient
- * @see emissive
- * @see shininess
- */
- Drawing2D.prototype.specular = DrawingShared.prototype.a3DOnlyFunction;
-
- Drawing3D.prototype.specular = function(v1, v2, v3) {
- curContext.useProgram(programObject3D);
- uniformi("usingMat3d", programObject3D, "usingMat", true);
- var col = p.color(v1, v2, v3);
- uniformf("mat_specular3d", programObject3D, "mat_specular", p.color.toGLArray(col).slice(0, 3));
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // Coordinates
- ////////////////////////////////////////////////////////////////////////////
-
- /**
- * Takes a three-dimensional X, Y, Z position and returns the X value for
- * where it will appear on a (two-dimensional) screen.
- *
- * @param {int | float} x 3D x coordinate to be mapped
- * @param {int | float} y 3D y coordinate to be mapped
- * @param {int | float} z 3D z optional coordinate to be mapped
- *
- * @returns {float}
- *
- * @see screenY
- * @see screenZ
- */
- p.screenX = function( x, y, z ) {
- var mv = modelView.array();
- if( mv.length === 16 )
- {
- var ax = mv[ 0]*x + mv[ 1]*y + mv[ 2]*z + mv[ 3];
- var ay = mv[ 4]*x + mv[ 5]*y + mv[ 6]*z + mv[ 7];
- var az = mv[ 8]*x + mv[ 9]*y + mv[10]*z + mv[11];
- var aw = mv[12]*x + mv[13]*y + mv[14]*z + mv[15];
-
- var pj = projection.array();
-
- var ox = pj[ 0]*ax + pj[ 1]*ay + pj[ 2]*az + pj[ 3]*aw;
- var ow = pj[12]*ax + pj[13]*ay + pj[14]*az + pj[15]*aw;
-
- if ( ow !== 0 ){
- ox /= ow;
- }
- return p.width * ( 1 + ox ) / 2.0;
- }
- // We assume that we're in 2D
- return modelView.multX(x, y);
- };
-
- /**
- * Takes a three-dimensional X, Y, Z position and returns the Y value for
- * where it will appear on a (two-dimensional) screen.
- *
- * @param {int | float} x 3D x coordinate to be mapped
- * @param {int | float} y 3D y coordinate to be mapped
- * @param {int | float} z 3D z optional coordinate to be mapped
- *
- * @returns {float}
- *
- * @see screenX
- * @see screenZ
- */
- p.screenY = function screenY( x, y, z ) {
- var mv = modelView.array();
- if( mv.length === 16 ) {
- var ax = mv[ 0]*x + mv[ 1]*y + mv[ 2]*z + mv[ 3];
- var ay = mv[ 4]*x + mv[ 5]*y + mv[ 6]*z + mv[ 7];
- var az = mv[ 8]*x + mv[ 9]*y + mv[10]*z + mv[11];
- var aw = mv[12]*x + mv[13]*y + mv[14]*z + mv[15];
-
- var pj = projection.array();
-
- var oy = pj[ 4]*ax + pj[ 5]*ay + pj[ 6]*az + pj[ 7]*aw;
- var ow = pj[12]*ax + pj[13]*ay + pj[14]*az + pj[15]*aw;
-
- if ( ow !== 0 ){
- oy /= ow;
- }
- return p.height * ( 1 + oy ) / 2.0;
- }
- // We assume that we're in 2D
- return modelView.multY(x, y);
- };
-
- /**
- * Takes a three-dimensional X, Y, Z position and returns the Z value for
- * where it will appear on a (two-dimensional) screen.
- *
- * @param {int | float} x 3D x coordinate to be mapped
- * @param {int | float} y 3D y coordinate to be mapped
- * @param {int | float} z 3D z coordinate to be mapped
- *
- * @returns {float}
- *
- * @see screenX
- * @see screenY
- */
- p.screenZ = function screenZ( x, y, z ) {
- var mv = modelView.array();
- if( mv.length !== 16 ) {
- return 0;
- }
-
- var pj = projection.array();
-
- var ax = mv[ 0]*x + mv[ 1]*y + mv[ 2]*z + mv[ 3];
- var ay = mv[ 4]*x + mv[ 5]*y + mv[ 6]*z + mv[ 7];
- var az = mv[ 8]*x + mv[ 9]*y + mv[10]*z + mv[11];
- var aw = mv[12]*x + mv[13]*y + mv[14]*z + mv[15];
-
- var oz = pj[ 8]*ax + pj[ 9]*ay + pj[10]*az + pj[11]*aw;
- var ow = pj[12]*ax + pj[13]*ay + pj[14]*az + pj[15]*aw;
-
- if ( ow !== 0 ) {
- oz /= ow;
- }
- return ( oz + 1 ) / 2.0;
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // Style functions
- ////////////////////////////////////////////////////////////////////////////
- /**
- * The fill() function sets the color used to fill shapes. For example, if you run fill(204, 102, 0), all subsequent shapes will be filled with orange.
- * This color is either specified in terms of the RGB or HSB color depending on the current colorMode()
- *(the default color space is RGB, with each value in the range from 0 to 255).
- *
When using hexadecimal notation to specify a color, use "#" or "0x" before the values (e.g. #CCFFAA, 0xFFCCFFAA).
- * The # syntax uses six digits to specify a color (the way colors are specified in HTML and CSS). When using the hexadecimal notation starting with "0x",
- * the hexadecimal value must be specified with eight characters; the first two characters define the alpha component and the remainder the red, green, and blue components.
- *
The value for the parameter "gray" must be less than or equal to the current maximum value as specified by colorMode(). The default maximum value is 255.
- *
To change the color of an image (or a texture), use tint().
- *
- * @param {int|float} gray number specifying value between white and black
- * @param {int|float} value1 red or hue value
- * @param {int|float} value2 green or saturation value
- * @param {int|float} value3 blue or brightness value
- * @param {int|float} alpha opacity of the fill
- * @param {Color} color any value of the color datatype
- * @param {int} hex color value in hexadecimal notation (i.e. #FFCC00 or 0xFFFFCC00)
- *
- * @see #noFill()
- * @see #stroke()
- * @see #tint()
- * @see #background()
- * @see #colorMode()
- */
- DrawingShared.prototype.fill = function() {
- var color = p.color(arguments[0], arguments[1], arguments[2], arguments[3]);
- if(color === currentFillColor && doFill) {
- return;
- }
- doFill = true;
- currentFillColor = color;
- };
-
- Drawing2D.prototype.fill = function() {
- DrawingShared.prototype.fill.apply(this, arguments);
- isFillDirty = true;
- };
-
- Drawing3D.prototype.fill = function() {
- DrawingShared.prototype.fill.apply(this, arguments);
- fillStyle = p.color.toGLArray(currentFillColor);
- };
-
- function executeContextFill() {
- if(doFill) {
- if(isFillDirty) {
- curContext.fillStyle = p.color.toString(currentFillColor);
- isFillDirty = false;
- }
- curContext.fill();
- }
- }
-
- /**
- * The noFill() function disables filling geometry. If both noStroke() and noFill()
- * are called, no shapes will be drawn to the screen.
- *
- * @see #fill()
- *
- */
- p.noFill = function() {
- doFill = false;
- };
-
- /**
- * The stroke() function sets the color used to draw lines and borders around shapes. This color
- * is either specified in terms of the RGB or HSB color depending on the
- * current colorMode() (the default color space is RGB, with each
- * value in the range from 0 to 255).
- *
When using hexadecimal notation to specify a color, use "#" or
- * "0x" before the values (e.g. #CCFFAA, 0xFFCCFFAA). The # syntax uses six
- * digits to specify a color (the way colors are specified in HTML and CSS).
- * When using the hexadecimal notation starting with "0x", the hexadecimal
- * value must be specified with eight characters; the first two characters
- * define the alpha component and the remainder the red, green, and blue
- * components.
- *
The value for the parameter "gray" must be less than or equal
- * to the current maximum value as specified by colorMode().
- * The default maximum value is 255.
- *
- * @param {int|float} gray number specifying value between white and black
- * @param {int|float} value1 red or hue value
- * @param {int|float} value2 green or saturation value
- * @param {int|float} value3 blue or brightness value
- * @param {int|float} alpha opacity of the stroke
- * @param {Color} color any value of the color datatype
- * @param {int} hex color value in hexadecimal notation (i.e. #FFCC00 or 0xFFFFCC00)
- *
- * @see #fill()
- * @see #noStroke()
- * @see #tint()
- * @see #background()
- * @see #colorMode()
- */
- DrawingShared.prototype.stroke = function() {
- var color = p.color(arguments[0], arguments[1], arguments[2], arguments[3]);
- if(color === currentStrokeColor && doStroke) {
- return;
- }
- doStroke = true;
- currentStrokeColor = color;
- };
-
- Drawing2D.prototype.stroke = function() {
- DrawingShared.prototype.stroke.apply(this, arguments);
- isStrokeDirty = true;
- };
-
- Drawing3D.prototype.stroke = function() {
- DrawingShared.prototype.stroke.apply(this, arguments);
- strokeStyle = p.color.toGLArray(currentStrokeColor);
- };
-
- function executeContextStroke() {
- if(doStroke) {
- if(isStrokeDirty) {
- curContext.strokeStyle = p.color.toString(currentStrokeColor);
- isStrokeDirty = false;
- }
- curContext.stroke();
- }
- }
-
- /**
- * The noStroke() function disables drawing the stroke (outline). If both noStroke() and
- * noFill() are called, no shapes will be drawn to the screen.
- *
- * @see #stroke()
- */
- p.noStroke = function() {
- doStroke = false;
- };
-
- /**
- * The strokeWeight() function sets the width of the stroke used for lines, points, and the border around shapes.
- * All widths are set in units of pixels.
- *
- * @param {int|float} w the weight (in pixels) of the stroke
- */
- DrawingShared.prototype.strokeWeight = function(w) {
- lineWidth = w;
- };
-
- Drawing2D.prototype.strokeWeight = function(w) {
- DrawingShared.prototype.strokeWeight.apply(this, arguments);
- curContext.lineWidth = w;
- };
-
- Drawing3D.prototype.strokeWeight = function(w) {
- DrawingShared.prototype.strokeWeight.apply(this, arguments);
-
- // Processing groups the weight of points and lines under this one function,
- // but for WebGL, we need to set a uniform for points and call a function for line.
-
- curContext.useProgram(programObject2D);
- uniformf("pointSize2d", programObject2D, "pointSize", w);
-
- curContext.useProgram(programObjectUnlitShape);
- uniformf("pointSizeUnlitShape", programObjectUnlitShape, "pointSize", w);
-
- curContext.lineWidth(w);
- };
-
- /**
- * The strokeCap() function sets the style for rendering line endings. These ends are either squared, extended, or rounded and
- * specified with the corresponding parameters SQUARE, PROJECT, and ROUND. The default cap is ROUND.
- * This function is not available with the P2D, P3D, or OPENGL renderers
- *
- * @param {int} value Either SQUARE, PROJECT, or ROUND
- */
- p.strokeCap = function(value) {
- drawing.$ensureContext().lineCap = value;
- };
-
- /**
- * The strokeJoin() function sets the style of the joints which connect line segments.
- * These joints are either mitered, beveled, or rounded and specified with the corresponding parameters MITER, BEVEL, and ROUND. The default joint is MITER.
- * This function is not available with the P2D, P3D, or OPENGL renderers
- *
- * @param {int} value Either SQUARE, PROJECT, or ROUND
- */
- p.strokeJoin = function(value) {
- drawing.$ensureContext().lineJoin = value;
- };
-
- /**
- * The smooth() function draws all geometry with smooth (anti-aliased) edges. This will slow down the frame rate of the application,
- * but will enhance the visual refinement.
- * Note that smooth() will also improve image quality of resized images, and noSmooth() will disable image (and font) smoothing altogether.
- *
- * @see #noSmooth()
- * @see #hint()
- * @see #size()
- */
-
- Drawing2D.prototype.smooth = function() {
- renderSmooth = true;
- var style = curElement.style;
- style.setProperty("image-rendering", "optimizeQuality", "important");
- style.setProperty("-ms-interpolation-mode", "bicubic", "important");
- if (curContext.hasOwnProperty("mozImageSmoothingEnabled")) {
- curContext.mozImageSmoothingEnabled = true;
- }
- };
-
- Drawing3D.prototype.smooth = nop;
-
- /**
- * The noSmooth() function draws all geometry with jagged (aliased) edges.
- *
- * @see #smooth()
- */
-
- Drawing2D.prototype.noSmooth = function() {
- renderSmooth = false;
- var style = curElement.style;
- style.setProperty("image-rendering", "optimizeSpeed", "important");
- style.setProperty("image-rendering", "-moz-crisp-edges", "important");
- style.setProperty("image-rendering", "-webkit-optimize-contrast", "important");
- style.setProperty("image-rendering", "optimize-contrast", "important");
- style.setProperty("-ms-interpolation-mode", "nearest-neighbor", "important");
- if (curContext.hasOwnProperty("mozImageSmoothingEnabled")) {
- curContext.mozImageSmoothingEnabled = false;
- }
- };
-
- Drawing3D.prototype.noSmooth = nop;
-
- ////////////////////////////////////////////////////////////////////////////
- // Vector drawing functions
- ////////////////////////////////////////////////////////////////////////////
- /**
- * The point() function draws a point, a coordinate in space at the dimension of one pixel.
- * The first parameter is the horizontal value for the point, the second
- * value is the vertical value for the point, and the optional third value
- * is the depth value. Drawing this shape in 3D using the z
- * parameter requires the P3D or OPENGL parameter in combination with
- * size as shown in the above example.
- *
- * @param {int|float} x x-coordinate of the point
- * @param {int|float} y y-coordinate of the point
- * @param {int|float} z z-coordinate of the point
- *
- * @see #beginShape()
- */
- Drawing2D.prototype.point = function(x, y) {
- if (!doStroke) {
- return;
- }
-
- x = Math.round(x);
- y = Math.round(y);
- curContext.fillStyle = p.color.toString(currentStrokeColor);
- isFillDirty = true;
- // Draw a circle for any point larger than 1px
- if (lineWidth > 1) {
- curContext.beginPath();
- curContext.arc(x, y, lineWidth / 2, 0, PConstants.TWO_PI, false);
- curContext.fill();
- } else {
- curContext.fillRect(x, y, 1, 1);
- }
- };
-
- Drawing3D.prototype.point = function(x, y, z) {
- var model = new PMatrix3D();
-
- // move point to position
- model.translate(x, y, z || 0);
- model.transpose();
-
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- curContext.useProgram(programObject2D);
- uniformMatrix("model2d", programObject2D, "model", false, model.array());
- uniformMatrix("view2d", programObject2D, "view", false, view.array());
-
- if (lineWidth > 0 && doStroke) {
- // this will be replaced with the new bit shifting color code
- uniformf("color2d", programObject2D, "color", strokeStyle);
- uniformi("picktype2d", programObject2D, "picktype", 0);
- vertexAttribPointer("vertex2d", programObject2D, "Vertex", 3, pointBuffer);
- disableVertexAttribPointer("aTextureCoord2d", programObject2D, "aTextureCoord");
- curContext.drawArrays(curContext.POINTS, 0, 1);
- }
- };
-
- /**
- * Using the beginShape() and endShape() functions allow creating more complex forms.
- * beginShape() begins recording vertices for a shape and endShape() stops recording.
- * The value of the MODE parameter tells it which types of shapes to create from the provided vertices.
- * With no mode specified, the shape can be any irregular polygon. After calling the beginShape() function,
- * a series of vertex() commands must follow. To stop drawing the shape, call endShape().
- * The vertex() function with two parameters specifies a position in 2D and the vertex()
- * function with three parameters specifies a position in 3D. Each shape will be outlined with the current
- * stroke color and filled with the fill color.
- *
- * @param {int} MODE either POINTS, LINES, TRIANGLES, TRIANGLE_FAN, TRIANGLE_STRIP, QUADS, and QUAD_STRIP.
- *
- * @see endShape
- * @see vertex
- * @see curveVertex
- * @see bezierVertex
- */
- p.beginShape = function(type) {
- curShape = type;
- curvePoints = [];
- vertArray = [];
- };
-
- /**
- * All shapes are constructed by connecting a series of vertices. vertex() is used to specify the vertex
- * coordinates for points, lines, triangles, quads, and polygons and is used exclusively within the beginShape()
- * and endShape() function.
Drawing a vertex in 3D using the z parameter requires the P3D or
- * OPENGL parameter in combination with size as shown in the above example.
This function is also used to map a
- * texture onto the geometry. The texture() function declares the texture to apply to the geometry and the u
- * and v coordinates set define the mapping of this texture to the form. By default, the coordinates used for
- * u and v are specified in relation to the image's size in pixels, but this relation can be changed with
- * textureMode().
- *
- * @param {int | float} x x-coordinate of the vertex
- * @param {int | float} y y-coordinate of the vertex
- * @param {int | float} z z-coordinate of the vertex
- * @param {int | float} u horizontal coordinate for the texture mapping
- * @param {int | float} v vertical coordinate for the texture mapping
- *
- * @see beginShape
- * @see endShape
- * @see bezierVertex
- * @see curveVertex
- * @see texture
- */
-
- Drawing2D.prototype.vertex = function(x, y, u, v) {
- var vert = [];
-
- if (firstVert) { firstVert = false; }
- vert["isVert"] = true;
-
- vert[0] = x;
- vert[1] = y;
- vert[2] = 0;
- vert[3] = u;
- vert[4] = v;
-
- // fill and stroke color
- vert[5] = currentFillColor;
- vert[6] = currentStrokeColor;
-
- vertArray.push(vert);
- };
-
- Drawing3D.prototype.vertex = function(x, y, z, u, v) {
- var vert = [];
-
- if (firstVert) { firstVert = false; }
- vert["isVert"] = true;
-
- if (v === undef && usingTexture) {
- v = u;
- u = z;
- z = 0;
- }
-
- // Convert u and v to normalized coordinates
- if (u !== undef && v !== undef) {
- if (curTextureMode === PConstants.IMAGE) {
- u /= curTexture.width;
- v /= curTexture.height;
- }
- u = u > 1 ? 1 : u;
- u = u < 0 ? 0 : u;
- v = v > 1 ? 1 : v;
- v = v < 0 ? 0 : v;
- }
-
- vert[0] = x;
- vert[1] = y;
- vert[2] = z || 0;
- vert[3] = u || 0;
- vert[4] = v || 0;
-
- // fill rgba
- vert[5] = fillStyle[0];
- vert[6] = fillStyle[1];
- vert[7] = fillStyle[2];
- vert[8] = fillStyle[3];
- // stroke rgba
- vert[9] = strokeStyle[0];
- vert[10] = strokeStyle[1];
- vert[11] = strokeStyle[2];
- vert[12] = strokeStyle[3];
- //normals
- vert[13] = normalX;
- vert[14] = normalY;
- vert[15] = normalZ;
-
- vertArray.push(vert);
- };
-
- /**
- * @private
- * Renders 3D points created from calls to vertex and beginShape/endShape
- *
- * @param {Array} vArray an array of vertex coordinate
- * @param {Array} cArray an array of colours used for the vertices
- *
- * @see beginShape
- * @see endShape
- * @see vertex
- */
- var point3D = function(vArray, cArray){
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- curContext.useProgram(programObjectUnlitShape);
-
- uniformMatrix("uViewUS", programObjectUnlitShape, "uView", false, view.array());
-
- vertexAttribPointer("aVertexUS", programObjectUnlitShape, "aVertex", 3, pointBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(vArray), curContext.STREAM_DRAW);
-
- vertexAttribPointer("aColorUS", programObjectUnlitShape, "aColor", 4, fillColorBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(cArray), curContext.STREAM_DRAW);
-
- curContext.drawArrays(curContext.POINTS, 0, vArray.length/3);
- };
-
- /**
- * @private
- * Renders 3D lines created from calls to beginShape/vertex/endShape - based on the mode specified LINES, LINE_LOOP, etc.
- *
- * @param {Array} vArray an array of vertex coordinate
- * @param {String} mode either LINES, LINE_LOOP, or LINE_STRIP
- * @param {Array} cArray an array of colours used for the vertices
- *
- * @see beginShape
- * @see endShape
- * @see vertex
- */
- var line3D = function(vArray, mode, cArray){
- var ctxMode;
- if (mode === "LINES"){
- ctxMode = curContext.LINES;
- }
- else if(mode === "LINE_LOOP"){
- ctxMode = curContext.LINE_LOOP;
- }
- else{
- ctxMode = curContext.LINE_STRIP;
- }
-
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- curContext.useProgram(programObjectUnlitShape);
- uniformMatrix("uViewUS", programObjectUnlitShape, "uView", false, view.array());
- vertexAttribPointer("aVertexUS", programObjectUnlitShape, "aVertex", 3, lineBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(vArray), curContext.STREAM_DRAW);
- vertexAttribPointer("aColorUS", programObjectUnlitShape, "aColor", 4, strokeColorBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(cArray), curContext.STREAM_DRAW);
- curContext.drawArrays(ctxMode, 0, vArray.length/3);
- };
-
- /**
- * @private
- * Render filled shapes created from calls to beginShape/vertex/endShape - based on the mode specified TRIANGLES, etc.
- *
- * @param {Array} vArray an array of vertex coordinate
- * @param {String} mode either LINES, LINE_LOOP, or LINE_STRIP
- * @param {Array} cArray an array of colours used for the vertices
- * @param {Array} tArray an array of u,v coordinates for textures
- *
- * @see beginShape
- * @see endShape
- * @see vertex
- */
- var fill3D = function(vArray, mode, cArray, tArray){
- var ctxMode;
- if (mode === "TRIANGLES") {
- ctxMode = curContext.TRIANGLES;
- } else if(mode === "TRIANGLE_FAN") {
- ctxMode = curContext.TRIANGLE_FAN;
- } else {
- ctxMode = curContext.TRIANGLE_STRIP;
- }
-
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- curContext.useProgram( programObject3D );
- uniformMatrix("model3d", programObject3D, "model", false, [1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1] );
- uniformMatrix("view3d", programObject3D, "view", false, view.array() );
- curContext.enable( curContext.POLYGON_OFFSET_FILL );
- curContext.polygonOffset( 1, 1 );
- uniformf("color3d", programObject3D, "color", [-1,0,0,0]);
- vertexAttribPointer("vertex3d", programObject3D, "Vertex", 3, fillBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(vArray), curContext.STREAM_DRAW);
-
- // if we are using a texture and a tint, then overwrite the
- // contents of the color buffer with the current tint
- if (usingTexture && curTint !== null){
- curTint3d(cArray);
- }
-
- vertexAttribPointer("aColor3d", programObject3D, "aColor", 4, fillColorBuffer);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(cArray), curContext.STREAM_DRAW);
-
- // No support for lights....yet
- disableVertexAttribPointer("normal3d", programObject3D, "Normal");
-
- if (usingTexture) {
- uniformi("usingTexture3d", programObject3D, "usingTexture", usingTexture);
- vertexAttribPointer("aTexture3d", programObject3D, "aTexture", 2, shapeTexVBO);
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(tArray), curContext.STREAM_DRAW);
- }
-
- curContext.drawArrays( ctxMode, 0, vArray.length/3 );
- curContext.disable( curContext.POLYGON_OFFSET_FILL );
- };
-
- /**
- * this series of three operations is used a lot in Drawing2D.prototype.endShape
- * and has been split off as its own function, to tighten the code and allow for
- * fewer bugs.
- */
- function fillStrokeClose() {
- executeContextFill();
- executeContextStroke();
- curContext.closePath();
- }
-
- /**
- * The endShape() function is the companion to beginShape() and may only be called after beginShape().
- * When endshape() is called, all of image data defined since the previous call to beginShape() is written
- * into the image buffer.
- *
- * @param {int} MODE Use CLOSE to close the shape
- *
- * @see beginShape
- */
- Drawing2D.prototype.endShape = function(mode) {
- // Duplicated in Drawing3D; too many variables used
- if (vertArray.length === 0) { return; }
-
- var closeShape = mode === PConstants.CLOSE;
-
- // if the shape is closed, the first element is also the last element
- if (closeShape) {
- vertArray.push(vertArray[0]);
- }
-
- var lineVertArray = [];
- var fillVertArray = [];
- var colorVertArray = [];
- var strokeVertArray = [];
- var texVertArray = [];
- var cachedVertArray;
-
- firstVert = true;
- var i, j, k;
- var vertArrayLength = vertArray.length;
-
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- for (j = 0; j < 3; j++) {
- fillVertArray.push(cachedVertArray[j]);
- }
- }
-
- // 5,6,7,8
- // R,G,B,A - fill colour
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- for (j = 5; j < 9; j++) {
- colorVertArray.push(cachedVertArray[j]);
- }
- }
-
- // 9,10,11,12
- // R, G, B, A - stroke colour
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(cachedVertArray[j]);
- }
- }
-
- // texture u,v
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- texVertArray.push(cachedVertArray[3]);
- texVertArray.push(cachedVertArray[4]);
- }
-
- // curveVertex
- if ( isCurve && (curShape === PConstants.POLYGON || curShape === undef) ) {
- if (vertArrayLength > 3) {
- var b = [],
- s = 1 - curTightness;
- curContext.beginPath();
- curContext.moveTo(vertArray[1][0], vertArray[1][1]);
- /*
- * Matrix to convert from Catmull-Rom to cubic Bezier
- * where t = curTightness
- * |0 1 0 0 |
- * |(t-1)/6 1 (1-t)/6 0 |
- * |0 (1-t)/6 1 (t-1)/6 |
- * |0 0 0 0 |
- */
- for (i = 1; (i+2) < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- b[0] = [cachedVertArray[0], cachedVertArray[1]];
- b[1] = [cachedVertArray[0] + (s * vertArray[i+1][0] - s * vertArray[i-1][0]) / 6,
- cachedVertArray[1] + (s * vertArray[i+1][1] - s * vertArray[i-1][1]) / 6];
- b[2] = [vertArray[i+1][0] + (s * vertArray[i][0] - s * vertArray[i+2][0]) / 6,
- vertArray[i+1][1] + (s * vertArray[i][1] - s * vertArray[i+2][1]) / 6];
- b[3] = [vertArray[i+1][0], vertArray[i+1][1]];
- curContext.bezierCurveTo(b[1][0], b[1][1], b[2][0], b[2][1], b[3][0], b[3][1]);
- }
- fillStrokeClose();
- }
- }
-
- // bezierVertex
- else if ( isBezier && (curShape === PConstants.POLYGON || curShape === undef) ) {
- curContext.beginPath();
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- if (vertArray[i]["isVert"]) { //if it is a vertex move to the position
- if (vertArray[i]["moveTo"]) {
- curContext.moveTo(cachedVertArray[0], cachedVertArray[1]);
- } else {
- curContext.lineTo(cachedVertArray[0], cachedVertArray[1]);
- }
- } else { //otherwise continue drawing bezier
- curContext.bezierCurveTo(vertArray[i][0], vertArray[i][1], vertArray[i][2], vertArray[i][3], vertArray[i][4], vertArray[i][5]);
- }
- }
- fillStrokeClose();
- }
-
- // render the vertices provided
- else {
- if (curShape === PConstants.POINTS) {
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- if (doStroke) {
- p.stroke(cachedVertArray[6]);
- }
- p.point(cachedVertArray[0], cachedVertArray[1]);
- }
- } else if (curShape === PConstants.LINES) {
- for (i = 0; (i + 1) < vertArrayLength; i+=2) {
- cachedVertArray = vertArray[i];
- if (doStroke) {
- p.stroke(vertArray[i+1][6]);
- }
- p.line(cachedVertArray[0], cachedVertArray[1], vertArray[i+1][0], vertArray[i+1][1]);
- }
- } else if (curShape === PConstants.TRIANGLES) {
- for (i = 0; (i + 2) < vertArrayLength; i+=3) {
- cachedVertArray = vertArray[i];
- curContext.beginPath();
- curContext.moveTo(cachedVertArray[0], cachedVertArray[1]);
- curContext.lineTo(vertArray[i+1][0], vertArray[i+1][1]);
- curContext.lineTo(vertArray[i+2][0], vertArray[i+2][1]);
- curContext.lineTo(cachedVertArray[0], cachedVertArray[1]);
-
- if (doFill) {
- p.fill(vertArray[i+2][5]);
- executeContextFill();
- }
- if (doStroke) {
- p.stroke(vertArray[i+2][6]);
- executeContextStroke();
- }
-
- curContext.closePath();
- }
- } else if (curShape === PConstants.TRIANGLE_STRIP) {
- for (i = 0; (i+1) < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- curContext.beginPath();
- curContext.moveTo(vertArray[i+1][0], vertArray[i+1][1]);
- curContext.lineTo(cachedVertArray[0], cachedVertArray[1]);
-
- if (doStroke) {
- p.stroke(vertArray[i+1][6]);
- }
- if (doFill) {
- p.fill(vertArray[i+1][5]);
- }
-
- if (i + 2 < vertArrayLength) {
- curContext.lineTo(vertArray[i+2][0], vertArray[i+2][1]);
- if (doStroke) {
- p.stroke(vertArray[i+2][6]);
- }
- if (doFill) {
- p.fill(vertArray[i+2][5]);
- }
- }
- fillStrokeClose();
- }
- } else if (curShape === PConstants.TRIANGLE_FAN) {
- if (vertArrayLength > 2) {
- curContext.beginPath();
- curContext.moveTo(vertArray[0][0], vertArray[0][1]);
- curContext.lineTo(vertArray[1][0], vertArray[1][1]);
- curContext.lineTo(vertArray[2][0], vertArray[2][1]);
-
- if (doFill) {
- p.fill(vertArray[2][5]);
- executeContextFill();
- }
- if (doStroke) {
- p.stroke(vertArray[2][6]);
- executeContextStroke();
- }
-
- curContext.closePath();
- for (i = 3; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- curContext.beginPath();
- curContext.moveTo(vertArray[0][0], vertArray[0][1]);
- curContext.lineTo(vertArray[i-1][0], vertArray[i-1][1]);
- curContext.lineTo(cachedVertArray[0], cachedVertArray[1]);
-
- if (doFill) {
- p.fill(cachedVertArray[5]);
- executeContextFill();
- }
- if (doStroke) {
- p.stroke(cachedVertArray[6]);
- executeContextStroke();
- }
-
- curContext.closePath();
- }
- }
- } else if (curShape === PConstants.QUADS) {
- for (i = 0; (i + 3) < vertArrayLength; i+=4) {
- cachedVertArray = vertArray[i];
- curContext.beginPath();
- curContext.moveTo(cachedVertArray[0], cachedVertArray[1]);
- for (j = 1; j < 4; j++) {
- curContext.lineTo(vertArray[i+j][0], vertArray[i+j][1]);
- }
- curContext.lineTo(cachedVertArray[0], cachedVertArray[1]);
-
- if (doFill) {
- p.fill(vertArray[i+3][5]);
- executeContextFill();
- }
- if (doStroke) {
- p.stroke(vertArray[i+3][6]);
- executeContextStroke();
- }
-
- curContext.closePath();
- }
- } else if (curShape === PConstants.QUAD_STRIP) {
- if (vertArrayLength > 3) {
- for (i = 0; (i+1) < vertArrayLength; i+=2) {
- cachedVertArray = vertArray[i];
- curContext.beginPath();
- if (i+3 < vertArrayLength) {
- curContext.moveTo(vertArray[i+2][0], vertArray[i+2][1]);
- curContext.lineTo(cachedVertArray[0], cachedVertArray[1]);
- curContext.lineTo(vertArray[i+1][0], vertArray[i+1][1]);
- curContext.lineTo(vertArray[i+3][0], vertArray[i+3][1]);
-
- if (doFill) {
- p.fill(vertArray[i+3][5]);
- }
- if (doStroke) {
- p.stroke(vertArray[i+3][6]);
- }
- } else {
- curContext.moveTo(cachedVertArray[0], cachedVertArray[1]);
- curContext.lineTo(vertArray[i+1][0], vertArray[i+1][1]);
- }
- fillStrokeClose();
- }
- }
- } else {
- curContext.beginPath();
- curContext.moveTo(vertArray[0][0], vertArray[0][1]);
- for (i = 1; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- if (cachedVertArray["isVert"]) { //if it is a vertex move to the position
- if (cachedVertArray["moveTo"]) {
- curContext.moveTo(cachedVertArray[0], cachedVertArray[1]);
- } else {
- curContext.lineTo(cachedVertArray[0], cachedVertArray[1]);
- }
- }
- }
- fillStrokeClose();
- }
- }
-
- // Reset some settings
- isCurve = false;
- isBezier = false;
- curveVertArray = [];
- curveVertCount = 0;
-
- // If the shape is closed, the first element was added as last element.
- // We must remove it again to prevent the list of vertices from growing
- // over successive calls to endShape(CLOSE)
- if (closeShape) {
- vertArray.pop();
- }
- };
-
- Drawing3D.prototype.endShape = function(mode) {
- // Duplicated in Drawing3D; too many variables used
- if (vertArray.length === 0) { return; }
-
- var closeShape = mode === PConstants.CLOSE;
- var lineVertArray = [];
- var fillVertArray = [];
- var colorVertArray = [];
- var strokeVertArray = [];
- var texVertArray = [];
- var cachedVertArray;
-
- firstVert = true;
- var i, j, k;
- var vertArrayLength = vertArray.length;
-
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- for (j = 0; j < 3; j++) {
- fillVertArray.push(cachedVertArray[j]);
- }
- }
-
- // 5,6,7,8
- // R,G,B,A - fill colour
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- for (j = 5; j < 9; j++) {
- colorVertArray.push(cachedVertArray[j]);
- }
- }
-
- // 9,10,11,12
- // R, G, B, A - stroke colour
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(cachedVertArray[j]);
- }
- }
-
- // texture u,v
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- texVertArray.push(cachedVertArray[3]);
- texVertArray.push(cachedVertArray[4]);
- }
-
- // if shape is closed, push the first point into the last point (including colours)
- if (closeShape) {
- fillVertArray.push(vertArray[0][0]);
- fillVertArray.push(vertArray[0][1]);
- fillVertArray.push(vertArray[0][2]);
-
- for (i = 5; i < 9; i++) {
- colorVertArray.push(vertArray[0][i]);
- }
-
- for (i = 9; i < 13; i++) {
- strokeVertArray.push(vertArray[0][i]);
- }
-
- texVertArray.push(vertArray[0][3]);
- texVertArray.push(vertArray[0][4]);
- }
- // End duplication
-
- // curveVertex
- if ( isCurve && (curShape === PConstants.POLYGON || curShape === undef) ) {
- lineVertArray = fillVertArray;
- if (doStroke) {
- line3D(lineVertArray, null, strokeVertArray);
- }
- if (doFill) {
- fill3D(fillVertArray, null, colorVertArray);
- }
- }
- // bezierVertex
- else if ( isBezier && (curShape === PConstants.POLYGON || curShape === undef) ) {
- lineVertArray = fillVertArray;
- lineVertArray.splice(lineVertArray.length - 3);
- strokeVertArray.splice(strokeVertArray.length - 4);
- if (doStroke) {
- line3D(lineVertArray, null, strokeVertArray);
- }
- if (doFill) {
- fill3D(fillVertArray, "TRIANGLES", colorVertArray);
- }
- }
-
- // render the vertices provided
- else {
- if (curShape === PConstants.POINTS) { // if POINTS was the specified parameter in beginShape
- for (i = 0; i < vertArrayLength; i++) { // loop through and push the point location information to the array
- cachedVertArray = vertArray[i];
- for (j = 0; j < 3; j++) {
- lineVertArray.push(cachedVertArray[j]);
- }
- }
- point3D(lineVertArray, strokeVertArray); // render function for points
- } else if (curShape === PConstants.LINES) { // if LINES was the specified parameter in beginShape
- for (i = 0; i < vertArrayLength; i++) { // loop through and push the point location information to the array
- cachedVertArray = vertArray[i];
- for (j = 0; j < 3; j++) {
- lineVertArray.push(cachedVertArray[j]);
- }
- }
- for (i = 0; i < vertArrayLength; i++) { // loop through and push the color information to the array
- cachedVertArray = vertArray[i];
- for (j = 5; j < 9; j++) {
- colorVertArray.push(cachedVertArray[j]);
- }
- }
- line3D(lineVertArray, "LINES", strokeVertArray); // render function for lines
- } else if (curShape === PConstants.TRIANGLES) { // if TRIANGLES was the specified parameter in beginShape
- if (vertArrayLength > 2) {
- for (i = 0; (i+2) < vertArrayLength; i+=3) { // loop through the array per triangle
- fillVertArray = [];
- texVertArray = [];
- lineVertArray = [];
- colorVertArray = [];
- strokeVertArray = [];
- for (j = 0; j < 3; j++) {
- for (k = 0; k < 3; k++) { // loop through and push
- lineVertArray.push(vertArray[i+j][k]); // the line point location information
- fillVertArray.push(vertArray[i+j][k]); // and fill point location information
- }
- }
- for (j = 0; j < 3; j++) { // loop through and push the texture information
- for (k = 3; k < 5; k++) {
- texVertArray.push(vertArray[i+j][k]);
- }
- }
- for (j = 0; j < 3; j++) {
- for (k = 5; k < 9; k++) { // loop through and push
- colorVertArray.push(vertArray[i+j][k]); // the colour information
- strokeVertArray.push(vertArray[i+j][k+4]);// and the stroke information
- }
- }
- if (doStroke) {
- line3D(lineVertArray, "LINE_LOOP", strokeVertArray ); // line render function
- }
- if (doFill || usingTexture) {
- fill3D(fillVertArray, "TRIANGLES", colorVertArray, texVertArray); // fill shape render function
- }
- }
- }
- } else if (curShape === PConstants.TRIANGLE_STRIP) { // if TRIANGLE_STRIP was the specified parameter in beginShape
- if (vertArrayLength > 2) {
- for (i = 0; (i+2) < vertArrayLength; i++) {
- lineVertArray = [];
- fillVertArray = [];
- strokeVertArray = [];
- colorVertArray = [];
- texVertArray = [];
- for (j = 0; j < 3; j++) {
- for (k = 0; k < 3; k++) {
- lineVertArray.push(vertArray[i+j][k]);
- fillVertArray.push(vertArray[i+j][k]);
- }
- }
- for (j = 0; j < 3; j++) {
- for (k = 3; k < 5; k++) {
- texVertArray.push(vertArray[i+j][k]);
- }
- }
- for (j = 0; j < 3; j++) {
- for (k = 5; k < 9; k++) {
- strokeVertArray.push(vertArray[i+j][k+4]);
- colorVertArray.push(vertArray[i+j][k]);
- }
- }
-
- if (doFill || usingTexture) {
- fill3D(fillVertArray, "TRIANGLE_STRIP", colorVertArray, texVertArray);
- }
- if (doStroke) {
- line3D(lineVertArray, "LINE_LOOP", strokeVertArray);
- }
- }
- }
- } else if (curShape === PConstants.TRIANGLE_FAN) {
- if (vertArrayLength > 2) {
- for (i = 0; i < 3; i++) {
- cachedVertArray = vertArray[i];
- for (j = 0; j < 3; j++) {
- lineVertArray.push(cachedVertArray[j]);
- }
- }
- for (i = 0; i < 3; i++) {
- cachedVertArray = vertArray[i];
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(cachedVertArray[j]);
- }
- }
- if (doStroke) {
- line3D(lineVertArray, "LINE_LOOP", strokeVertArray);
- }
-
- for (i = 2; (i+1) < vertArrayLength; i++) {
- lineVertArray = [];
- strokeVertArray = [];
- lineVertArray.push(vertArray[0][0]);
- lineVertArray.push(vertArray[0][1]);
- lineVertArray.push(vertArray[0][2]);
-
- strokeVertArray.push(vertArray[0][9]);
- strokeVertArray.push(vertArray[0][10]);
- strokeVertArray.push(vertArray[0][11]);
- strokeVertArray.push(vertArray[0][12]);
-
- for (j = 0; j < 2; j++) {
- for (k = 0; k < 3; k++) {
- lineVertArray.push(vertArray[i+j][k]);
- }
- }
- for (j = 0; j < 2; j++) {
- for (k = 9; k < 13; k++) {
- strokeVertArray.push(vertArray[i+j][k]);
- }
- }
- if (doStroke) {
- line3D(lineVertArray, "LINE_STRIP",strokeVertArray);
- }
- }
- if (doFill || usingTexture) {
- fill3D(fillVertArray, "TRIANGLE_FAN", colorVertArray, texVertArray);
- }
- }
- } else if (curShape === PConstants.QUADS) {
- for (i = 0; (i + 3) < vertArrayLength; i+=4) {
- lineVertArray = [];
- for (j = 0; j < 4; j++) {
- cachedVertArray = vertArray[i+j];
- for (k = 0; k < 3; k++) {
- lineVertArray.push(cachedVertArray[k]);
- }
- }
- if (doStroke) {
- line3D(lineVertArray, "LINE_LOOP",strokeVertArray);
- }
-
- if (doFill) {
- fillVertArray = [];
- colorVertArray = [];
- texVertArray = [];
- for (j = 0; j < 3; j++) {
- fillVertArray.push(vertArray[i][j]);
- }
- for (j = 5; j < 9; j++) {
- colorVertArray.push(vertArray[i][j]);
- }
-
- for (j = 0; j < 3; j++) {
- fillVertArray.push(vertArray[i+1][j]);
- }
- for (j = 5; j < 9; j++) {
- colorVertArray.push(vertArray[i+1][j]);
- }
-
- for (j = 0; j < 3; j++) {
- fillVertArray.push(vertArray[i+3][j]);
- }
- for (j = 5; j < 9; j++) {
- colorVertArray.push(vertArray[i+3][j]);
- }
-
- for (j = 0; j < 3; j++) {
- fillVertArray.push(vertArray[i+2][j]);
- }
- for (j = 5; j < 9; j++) {
- colorVertArray.push(vertArray[i+2][j]);
- }
-
- if (usingTexture) {
- texVertArray.push(vertArray[i+0][3]);
- texVertArray.push(vertArray[i+0][4]);
- texVertArray.push(vertArray[i+1][3]);
- texVertArray.push(vertArray[i+1][4]);
- texVertArray.push(vertArray[i+3][3]);
- texVertArray.push(vertArray[i+3][4]);
- texVertArray.push(vertArray[i+2][3]);
- texVertArray.push(vertArray[i+2][4]);
- }
-
- fill3D(fillVertArray, "TRIANGLE_STRIP", colorVertArray, texVertArray);
- }
- }
- } else if (curShape === PConstants.QUAD_STRIP) {
- var tempArray = [];
- if (vertArrayLength > 3) {
- for (i = 0; i < 2; i++) {
- cachedVertArray = vertArray[i];
- for (j = 0; j < 3; j++) {
- lineVertArray.push(cachedVertArray[j]);
- }
- }
-
- for (i = 0; i < 2; i++) {
- cachedVertArray = vertArray[i];
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(cachedVertArray[j]);
- }
- }
-
- line3D(lineVertArray, "LINE_STRIP", strokeVertArray);
- if (vertArrayLength > 4 && vertArrayLength % 2 > 0) {
- tempArray = fillVertArray.splice(fillVertArray.length - 3);
- vertArray.pop();
- }
- for (i = 0; (i+3) < vertArrayLength; i+=2) {
- lineVertArray = [];
- strokeVertArray = [];
- for (j = 0; j < 3; j++) {
- lineVertArray.push(vertArray[i+1][j]);
- }
- for (j = 0; j < 3; j++) {
- lineVertArray.push(vertArray[i+3][j]);
- }
- for (j = 0; j < 3; j++) {
- lineVertArray.push(vertArray[i+2][j]);
- }
- for (j = 0; j < 3; j++) {
- lineVertArray.push(vertArray[i+0][j]);
- }
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(vertArray[i+1][j]);
- }
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(vertArray[i+3][j]);
- }
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(vertArray[i+2][j]);
- }
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(vertArray[i+0][j]);
- }
- if (doStroke) {
- line3D(lineVertArray, "LINE_STRIP", strokeVertArray);
- }
- }
-
- if (doFill || usingTexture) {
- fill3D(fillVertArray, "TRIANGLE_LIST", colorVertArray, texVertArray);
- }
- }
- }
- // If the user didn't specify a type (LINES, TRIANGLES, etc)
- else {
- // If only one vertex was specified, it must be a point
- if (vertArrayLength === 1) {
- for (j = 0; j < 3; j++) {
- lineVertArray.push(vertArray[0][j]);
- }
- for (j = 9; j < 13; j++) {
- strokeVertArray.push(vertArray[0][j]);
- }
- point3D(lineVertArray,strokeVertArray);
- } else {
- for (i = 0; i < vertArrayLength; i++) {
- cachedVertArray = vertArray[i];
- for (j = 0; j < 3; j++) {
- lineVertArray.push(cachedVertArray[j]);
- }
- for (j = 5; j < 9; j++) {
- strokeVertArray.push(cachedVertArray[j]);
- }
- }
- if (doStroke && closeShape) {
- line3D(lineVertArray, "LINE_LOOP", strokeVertArray);
- } else if (doStroke && !closeShape) {
- line3D(lineVertArray, "LINE_STRIP", strokeVertArray);
- }
-
- // fill is ignored if textures are used
- if (doFill || usingTexture) {
- fill3D(fillVertArray, "TRIANGLE_FAN", colorVertArray, texVertArray);
- }
- }
- }
- // everytime beginShape is followed by a call to
- // texture(), texturing it turned back on. We do this to
- // figure out if the shape should be textured or filled
- // with a color.
- usingTexture = false;
- curContext.useProgram(programObject3D);
- uniformi("usingTexture3d", programObject3D, "usingTexture", usingTexture);
- }
-
- // Reset some settings
- isCurve = false;
- isBezier = false;
- curveVertArray = [];
- curveVertCount = 0;
- };
-
- /**
- * The function splineForward() setup forward-differencing matrix to be used for speedy
- * curve rendering. It's based on using a specific number
- * of curve segments and just doing incremental adds for each
- * vertex of the segment, rather than running the mathematically
- * expensive cubic equation. This function is used by both curveDetail and bezierDetail.
- *
- * @param {int} segments number of curve segments to use when drawing
- * @param {PMatrix3D} matrix target object for the new matrix
- */
- var splineForward = function(segments, matrix) {
- var f = 1.0 / segments;
- var ff = f * f;
- var fff = ff * f;
-
- matrix.set(0, 0, 0, 1, fff, ff, f, 0, 6 * fff, 2 * ff, 0, 0, 6 * fff, 0, 0, 0);
- };
-
- /**
- * The curveInit() function set the number of segments to use when drawing a Catmull-Rom
- * curve, and setting the s parameter, which defines how tightly
- * the curve fits to each vertex. Catmull-Rom curves are actually
- * a subset of this curve type where the s is set to zero.
- * This in an internal function used by curveDetail() and curveTightness().
- */
- var curveInit = function() {
- // allocate only if/when used to save startup time
- if (!curveDrawMatrix) {
- curveBasisMatrix = new PMatrix3D();
- curveDrawMatrix = new PMatrix3D();
- curveInited = true;
- }
-
- var s = curTightness;
- curveBasisMatrix.set((s - 1) / 2, (s + 3) / 2, (-3 - s) / 2, (1 - s) / 2,
- (1 - s), (-5 - s) / 2, (s + 2), (s - 1) / 2,
- (s - 1) / 2, 0, (1 - s) / 2, 0, 0, 1, 0, 0);
-
- splineForward(curveDet, curveDrawMatrix);
-
- if (!bezierBasisInverse) {
- //bezierBasisInverse = bezierBasisMatrix.get();
- //bezierBasisInverse.invert();
- curveToBezierMatrix = new PMatrix3D();
- }
-
- // TODO only needed for PGraphicsJava2D? if so, move it there
- // actually, it's generally useful for other renderers, so keep it
- // or hide the implementation elsewhere.
- curveToBezierMatrix.set(curveBasisMatrix);
- curveToBezierMatrix.preApply(bezierBasisInverse);
-
- // multiply the basis and forward diff matrices together
- // saves much time since this needn't be done for each curve
- curveDrawMatrix.apply(curveBasisMatrix);
- };
-
- /**
- * Specifies vertex coordinates for Bezier curves. Each call to bezierVertex() defines the position of two control
- * points and one anchor point of a Bezier curve, adding a new segment to a line or shape. The first time
- * bezierVertex() is used within a beginShape() call, it must be prefaced with a call to vertex()
- * to set the first anchor point. This function must be used between beginShape() and endShape() and only
- * when there is no MODE parameter specified to beginShape(). Using the 3D version of requires rendering with P3D
- * or OPENGL (see the Environment reference for more information).
NOTE: Fill does not work properly yet.
- *
- * @param {float | int} cx1 The x-coordinate of 1st control point
- * @param {float | int} cy1 The y-coordinate of 1st control point
- * @param {float | int} cz1 The z-coordinate of 1st control point
- * @param {float | int} cx2 The x-coordinate of 2nd control point
- * @param {float | int} cy2 The y-coordinate of 2nd control point
- * @param {float | int} cz2 The z-coordinate of 2nd control point
- * @param {float | int} x The x-coordinate of the anchor point
- * @param {float | int} y The y-coordinate of the anchor point
- * @param {float | int} z The z-coordinate of the anchor point
- *
- * @see curveVertex
- * @see vertex
- * @see bezier
- */
- Drawing2D.prototype.bezierVertex = function() {
- isBezier = true;
- var vert = [];
- if (firstVert) {
- throw ("vertex() must be used at least once before calling bezierVertex()");
- }
-
- for (var i = 0; i < arguments.length; i++) {
- vert[i] = arguments[i];
- }
- vertArray.push(vert);
- vertArray[vertArray.length -1]["isVert"] = false;
- };
-
- Drawing3D.prototype.bezierVertex = function() {
- isBezier = true;
- var vert = [];
- if (firstVert) {
- throw ("vertex() must be used at least once before calling bezierVertex()");
- }
-
- if (arguments.length === 9) {
- if (bezierDrawMatrix === undef) {
- bezierDrawMatrix = new PMatrix3D();
- }
- // setup matrix for forward differencing to speed up drawing
- var lastPoint = vertArray.length - 1;
- splineForward( bezDetail, bezierDrawMatrix );
- bezierDrawMatrix.apply( bezierBasisMatrix );
- var draw = bezierDrawMatrix.array();
- var x1 = vertArray[lastPoint][0],
- y1 = vertArray[lastPoint][1],
- z1 = vertArray[lastPoint][2];
- var xplot1 = draw[4] * x1 + draw[5] * arguments[0] + draw[6] * arguments[3] + draw[7] * arguments[6];
- var xplot2 = draw[8] * x1 + draw[9] * arguments[0] + draw[10]* arguments[3] + draw[11]* arguments[6];
- var xplot3 = draw[12]* x1 + draw[13]* arguments[0] + draw[14]* arguments[3] + draw[15]* arguments[6];
-
- var yplot1 = draw[4] * y1 + draw[5] * arguments[1] + draw[6] * arguments[4] + draw[7] * arguments[7];
- var yplot2 = draw[8] * y1 + draw[9] * arguments[1] + draw[10]* arguments[4] + draw[11]* arguments[7];
- var yplot3 = draw[12]* y1 + draw[13]* arguments[1] + draw[14]* arguments[4] + draw[15]* arguments[7];
-
- var zplot1 = draw[4] * z1 + draw[5] * arguments[2] + draw[6] * arguments[5] + draw[7] * arguments[8];
- var zplot2 = draw[8] * z1 + draw[9] * arguments[2] + draw[10]* arguments[5] + draw[11]* arguments[8];
- var zplot3 = draw[12]* z1 + draw[13]* arguments[2] + draw[14]* arguments[5] + draw[15]* arguments[8];
- for (var j = 0; j < bezDetail; j++) {
- x1 += xplot1; xplot1 += xplot2; xplot2 += xplot3;
- y1 += yplot1; yplot1 += yplot2; yplot2 += yplot3;
- z1 += zplot1; zplot1 += zplot2; zplot2 += zplot3;
- p.vertex(x1, y1, z1);
- }
- p.vertex(arguments[6], arguments[7], arguments[8]);
- }
- };
-
- /**
- * Sets a texture to be applied to vertex points. The texture() function
- * must be called between beginShape() and endShape() and before
- * any calls to vertex().
- *
- * When textures are in use, the fill color is ignored. Instead, use tint() to
- * specify the color of the texture as it is applied to the shape.
- *
- * @param {PImage} pimage the texture to apply
- *
- * @returns none
- *
- * @see textureMode
- * @see beginShape
- * @see endShape
- * @see vertex
- */
- p.texture = function(pimage) {
- var curContext = drawing.$ensureContext();
-
- if (pimage.__texture) {
- curContext.bindTexture(curContext.TEXTURE_2D, pimage.__texture);
- } else if (pimage.localName === "canvas") {
- curContext.bindTexture(curContext.TEXTURE_2D, canTex);
- curContext.texImage2D(curContext.TEXTURE_2D, 0, curContext.RGBA, curContext.RGBA, curContext.UNSIGNED_BYTE, pimage);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_MAG_FILTER, curContext.LINEAR);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_MIN_FILTER, curContext.LINEAR);
- curContext.generateMipmap(curContext.TEXTURE_2D);
- curTexture.width = pimage.width;
- curTexture.height = pimage.height;
- } else {
- var texture = curContext.createTexture(),
- cvs = document.createElement('canvas'),
- cvsTextureCtx = cvs.getContext('2d'),
- pot;
-
- // WebGL requires power of two textures
- if (pimage.width & (pimage.width-1) === 0) {
- cvs.width = pimage.width;
- } else {
- pot = 1;
- while (pot < pimage.width) {
- pot *= 2;
- }
- cvs.width = pot;
- }
-
- if (pimage.height & (pimage.height-1) === 0) {
- cvs.height = pimage.height;
- } else {
- pot = 1;
- while (pot < pimage.height) {
- pot *= 2;
- }
- cvs.height = pot;
- }
-
- cvsTextureCtx.drawImage(pimage.sourceImg, 0, 0, pimage.width, pimage.height, 0, 0, cvs.width, cvs.height);
-
- curContext.bindTexture(curContext.TEXTURE_2D, texture);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_MIN_FILTER, curContext.LINEAR_MIPMAP_LINEAR);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_MAG_FILTER, curContext.LINEAR);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_WRAP_T, curContext.CLAMP_TO_EDGE);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_WRAP_S, curContext.CLAMP_TO_EDGE);
- curContext.texImage2D(curContext.TEXTURE_2D, 0, curContext.RGBA, curContext.RGBA, curContext.UNSIGNED_BYTE, cvs);
- curContext.generateMipmap(curContext.TEXTURE_2D);
-
- pimage.__texture = texture;
- curTexture.width = pimage.width;
- curTexture.height = pimage.height;
- }
-
- usingTexture = true;
- curContext.useProgram(programObject3D);
- uniformi("usingTexture3d", programObject3D, "usingTexture", usingTexture);
- };
-
- /**
- * Sets the coordinate space for texture mapping. There are two options, IMAGE,
- * which refers to the actual coordinates of the image, and NORMALIZED, which
- * refers to a normalized space of values ranging from 0 to 1. The default mode
- * is IMAGE. In IMAGE, if an image is 100 x 200 pixels, mapping the image onto
- * the entire size of a quad would require the points (0,0) (0,100) (100,200) (0,200).
- * The same mapping in NORMAL_SPACE is (0,0) (0,1) (1,1) (0,1).
- *
- * @param MODE either IMAGE or NORMALIZED
- *
- * @returns none
- *
- * @see texture
- */
- p.textureMode = function(mode){
- curTextureMode = mode;
- };
- /**
- * The curveVertexSegment() function handle emitting a specific segment of Catmull-Rom curve. Internal helper function used by curveVertex().
- */
- var curveVertexSegment = function(x1, y1, z1, x2, y2, z2, x3, y3, z3, x4, y4, z4) {
- var x0 = x2;
- var y0 = y2;
- var z0 = z2;
-
- var draw = curveDrawMatrix.array();
-
- var xplot1 = draw[4] * x1 + draw[5] * x2 + draw[6] * x3 + draw[7] * x4;
- var xplot2 = draw[8] * x1 + draw[9] * x2 + draw[10] * x3 + draw[11] * x4;
- var xplot3 = draw[12] * x1 + draw[13] * x2 + draw[14] * x3 + draw[15] * x4;
-
- var yplot1 = draw[4] * y1 + draw[5] * y2 + draw[6] * y3 + draw[7] * y4;
- var yplot2 = draw[8] * y1 + draw[9] * y2 + draw[10] * y3 + draw[11] * y4;
- var yplot3 = draw[12] * y1 + draw[13] * y2 + draw[14] * y3 + draw[15] * y4;
-
- var zplot1 = draw[4] * z1 + draw[5] * z2 + draw[6] * z3 + draw[7] * z4;
- var zplot2 = draw[8] * z1 + draw[9] * z2 + draw[10] * z3 + draw[11] * z4;
- var zplot3 = draw[12] * z1 + draw[13] * z2 + draw[14] * z3 + draw[15] * z4;
-
- p.vertex(x0, y0, z0);
- for (var j = 0; j < curveDet; j++) {
- x0 += xplot1; xplot1 += xplot2; xplot2 += xplot3;
- y0 += yplot1; yplot1 += yplot2; yplot2 += yplot3;
- z0 += zplot1; zplot1 += zplot2; zplot2 += zplot3;
- p.vertex(x0, y0, z0);
- }
- };
-
- /**
- * Specifies vertex coordinates for curves. This function may only be used between beginShape() and
- * endShape() and only when there is no MODE parameter specified to beginShape(). The first and last points
- * in a series of curveVertex() lines will be used to guide the beginning and end of a the curve. A minimum of four
- * points is required to draw a tiny curve between the second and third points. Adding a fifth point with
- * curveVertex() will draw the curve between the second, third, and fourth points. The curveVertex() function
- * is an implementation of Catmull-Rom splines. Using the 3D version of requires rendering with P3D or OPENGL (see the
- * Environment reference for more information).
NOTE: Fill does not work properly yet.
- *
- * @param {float | int} x The x-coordinate of the vertex
- * @param {float | int} y The y-coordinate of the vertex
- * @param {float | int} z The z-coordinate of the vertex
- *
- * @see curve
- * @see beginShape
- * @see endShape
- * @see vertex
- * @see bezierVertex
- */
- Drawing2D.prototype.curveVertex = function(x, y) {
- isCurve = true;
-
- p.vertex(x, y);
- };
-
- Drawing3D.prototype.curveVertex = function(x, y, z) {
- isCurve = true;
-
- if (!curveInited) {
- curveInit();
- }
- var vert = [];
- vert[0] = x;
- vert[1] = y;
- vert[2] = z;
- curveVertArray.push(vert);
- curveVertCount++;
-
- if (curveVertCount > 3) {
- curveVertexSegment( curveVertArray[curveVertCount-4][0],
- curveVertArray[curveVertCount-4][1],
- curveVertArray[curveVertCount-4][2],
- curveVertArray[curveVertCount-3][0],
- curveVertArray[curveVertCount-3][1],
- curveVertArray[curveVertCount-3][2],
- curveVertArray[curveVertCount-2][0],
- curveVertArray[curveVertCount-2][1],
- curveVertArray[curveVertCount-2][2],
- curveVertArray[curveVertCount-1][0],
- curveVertArray[curveVertCount-1][1],
- curveVertArray[curveVertCount-1][2] );
- }
- };
-
- /**
- * The curve() function draws a curved line on the screen. The first and second parameters
- * specify the beginning control point and the last two parameters specify
- * the ending control point. The middle parameters specify the start and
- * stop of the curve. Longer curves can be created by putting a series of
- * curve() functions together or using curveVertex().
- * An additional function called curveTightness() provides control
- * for the visual quality of the curve. The curve() function is an
- * implementation of Catmull-Rom splines. Using the 3D version of requires
- * rendering with P3D or OPENGL (see the Environment reference for more
- * information).
- *
- * @param {int|float} x1 coordinates for the beginning control point
- * @param {int|float} y1 coordinates for the beginning control point
- * @param {int|float} z1 coordinates for the beginning control point
- * @param {int|float} x2 coordinates for the first point
- * @param {int|float} y2 coordinates for the first point
- * @param {int|float} z2 coordinates for the first point
- * @param {int|float} x3 coordinates for the second point
- * @param {int|float} y3 coordinates for the second point
- * @param {int|float} z3 coordinates for the second point
- * @param {int|float} x4 coordinates for the ending control point
- * @param {int|float} y4 coordinates for the ending control point
- * @param {int|float} z4 coordinates for the ending control point
- *
- * @see #curveVertex()
- * @see #curveTightness()
- * @see #bezier()
- */
- Drawing2D.prototype.curve = function() {
- if (arguments.length === 8) { // curve(x1, y1, x2, y2, x3, y3, x4, y4)
- p.beginShape();
- p.curveVertex(arguments[0], arguments[1]);
- p.curveVertex(arguments[2], arguments[3]);
- p.curveVertex(arguments[4], arguments[5]);
- p.curveVertex(arguments[6], arguments[7]);
- p.endShape();
- }
- };
-
- Drawing3D.prototype.curve = function() {
- if (arguments.length === 12) { // curve( x1, y1, z1, x2, y2, z2, x3, y3, z3, x4, y4, z4);
- p.beginShape();
- p.curveVertex(arguments[0], arguments[1], arguments[2]);
- p.curveVertex(arguments[3], arguments[4], arguments[5]);
- p.curveVertex(arguments[6], arguments[7], arguments[8]);
- p.curveVertex(arguments[9], arguments[10], arguments[11]);
- p.endShape();
- }
- };
-
- /**
- * The curveTightness() function modifies the quality of forms created with curve() and
- * curveVertex(). The parameter squishy determines how the
- * curve fits to the vertex points. The value 0.0 is the default value for
- * squishy (this value defines the curves to be Catmull-Rom splines)
- * and the value 1.0 connects all the points with straight lines.
- * Values within the range -5.0 and 5.0 will deform the curves but
- * will leave them recognizable and as values increase in magnitude,
- * they will continue to deform.
- *
- * @param {float} tightness amount of deformation from the original vertices
- *
- * @see #curve()
- * @see #curveVertex()
- *
- */
- p.curveTightness = function(tightness) {
- curTightness = tightness;
- };
-
- /**
- * The curveDetail() function sets the resolution at which curves display. The default value is 20.
- * This function is only useful when using the P3D or OPENGL renderer.
- *
- * @param {int} detail resolution of the curves
- *
- * @see curve()
- * @see curveVertex()
- * @see curveTightness()
- */
- p.curveDetail = function(detail) {
- curveDet = detail;
- curveInit();
- };
-
- /**
- * Modifies the location from which rectangles draw. The default mode is rectMode(CORNER), which
- * specifies the location to be the upper left corner of the shape and uses the third and fourth
- * parameters of rect() to specify the width and height. The syntax rectMode(CORNERS) uses the
- * first and second parameters of rect() to set the location of one corner and uses the third and
- * fourth parameters to set the opposite corner. The syntax rectMode(CENTER) draws the image from
- * its center point and uses the third and forth parameters of rect() to specify the image's width
- * and height. The syntax rectMode(RADIUS) draws the image from its center point and uses the third
- * and forth parameters of rect() to specify half of the image's width and height. The parameter must
- * be written in ALL CAPS because Processing is a case sensitive language. Note: In version 125, the
- * mode named CENTER_RADIUS was shortened to RADIUS.
- *
- * @param {MODE} MODE Either CORNER, CORNERS, CENTER, or RADIUS
- *
- * @see rect
- */
- p.rectMode = function(aRectMode) {
- curRectMode = aRectMode;
- };
-
- /**
- * Modifies the location from which images draw. The default mode is imageMode(CORNER), which specifies
- * the location to be the upper left corner and uses the fourth and fifth parameters of image() to set
- * the image's width and height. The syntax imageMode(CORNERS) uses the second and third parameters of
- * image() to set the location of one corner of the image and uses the fourth and fifth parameters to
- * set the opposite corner. Use imageMode(CENTER) to draw images centered at the given x and y position.
- * The parameter to imageMode() must be written in ALL CAPS because Processing is a case sensitive language.
- *
- * @param {MODE} MODE Either CORNER, CORNERS, or CENTER
- *
- * @see loadImage
- * @see PImage
- * @see image
- * @see background
- */
- p.imageMode = function(mode) {
- switch (mode) {
- case PConstants.CORNER:
- imageModeConvert = imageModeCorner;
- break;
- case PConstants.CORNERS:
- imageModeConvert = imageModeCorners;
- break;
- case PConstants.CENTER:
- imageModeConvert = imageModeCenter;
- break;
- default:
- throw "Invalid imageMode";
- }
- };
-
- /**
- * The origin of the ellipse is modified by the ellipseMode() function. The default configuration is
- * ellipseMode(CENTER), which specifies the location of the ellipse as the center of the shape. The RADIUS
- * mode is the same, but the width and height parameters to ellipse() specify the radius of the ellipse,
- * rather than the diameter. The CORNER mode draws the shape from the upper-left corner of its bounding box.
- * The CORNERS mode uses the four parameters to ellipse() to set two opposing corners of the ellipse's bounding
- * box. The parameter must be written in "ALL CAPS" because Processing is a case sensitive language.
- *
- * @param {MODE} MODE Either CENTER, RADIUS, CORNER, or CORNERS.
- *
- * @see ellipse
- */
- p.ellipseMode = function(aEllipseMode) {
- curEllipseMode = aEllipseMode;
- };
-
- /**
- * The arc() function draws an arc in the display window.
- * Arcs are drawn along the outer edge of an ellipse defined by the
- * x, y, width and height parameters.
- * The origin or the arc's ellipse may be changed with the
- * ellipseMode() function.
- * The start and stop parameters specify the angles
- * at which to draw the arc.
- *
- * @param {float} a x-coordinate of the arc's ellipse
- * @param {float} b y-coordinate of the arc's ellipse
- * @param {float} c width of the arc's ellipse
- * @param {float} d height of the arc's ellipse
- * @param {float} start angle to start the arc, specified in radians
- * @param {float} stop angle to stop the arc, specified in radians
- *
- * @see #ellipseMode()
- * @see #ellipse()
- */
- p.arc = function(x, y, width, height, start, stop) {
- if (width <= 0 || stop < start) { return; }
-
- if (curEllipseMode === PConstants.CORNERS) {
- width = width - x;
- height = height - y;
- } else if (curEllipseMode === PConstants.RADIUS) {
- x = x - width;
- y = y - height;
- width = width * 2;
- height = height * 2;
- } else if (curEllipseMode === PConstants.CENTER) {
- x = x - width/2;
- y = y - height/2;
- }
- // make sure that we're starting at a useful point
- while (start < 0) {
- start += PConstants.TWO_PI;
- stop += PConstants.TWO_PI;
- }
- if (stop - start > PConstants.TWO_PI) {
- start = 0;
- stop = PConstants.TWO_PI;
- }
- var hr = width / 2;
- var vr = height / 2;
- var centerX = x + hr;
- var centerY = y + vr;
- var startLUT = 0 | (-0.5 + start * p.RAD_TO_DEG * 2);
- var stopLUT = 0 | (0.5 + stop * p.RAD_TO_DEG * 2);
- var i, j;
- if (doFill) {
- // shut off stroke for a minute
- var savedStroke = doStroke;
- doStroke = false;
- p.beginShape();
- p.vertex(centerX, centerY);
- for (i = startLUT; i <= stopLUT; i++) {
- j = i % PConstants.SINCOS_LENGTH;
- p.vertex(centerX + cosLUT[j] * hr, centerY + sinLUT[j] * vr);
- }
- p.endShape(PConstants.CLOSE);
- doStroke = savedStroke;
- }
-
- if (doStroke) {
- // and doesn't include the first (center) vertex.
- var savedFill = doFill;
- doFill = false;
- p.beginShape();
- for (i = startLUT; i <= stopLUT; i++) {
- j = i % PConstants.SINCOS_LENGTH;
- p.vertex(centerX + cosLUT[j] * hr, centerY + sinLUT[j] * vr);
- }
- p.endShape();
- doFill = savedFill;
- }
- };
-
- /**
- * Draws a line (a direct path between two points) to the screen. The version of line() with four parameters
- * draws the line in 2D. To color a line, use the stroke() function. A line cannot be filled, therefore the
- * fill() method will not affect the color of a line. 2D lines are drawn with a width of one pixel by default,
- * but this can be changed with the strokeWeight() function. The version with six parameters allows the line
- * to be placed anywhere within XYZ space. Drawing this shape in 3D using the z parameter requires the P3D or
- * OPENGL parameter in combination with size.
- *
- * @param {int|float} x1 x-coordinate of the first point
- * @param {int|float} y1 y-coordinate of the first point
- * @param {int|float} z1 z-coordinate of the first point
- * @param {int|float} x2 x-coordinate of the second point
- * @param {int|float} y2 y-coordinate of the second point
- * @param {int|float} z2 z-coordinate of the second point
- *
- * @see strokeWeight
- * @see strokeJoin
- * @see strokeCap
- * @see beginShape
- */
- Drawing2D.prototype.line = function(x1, y1, x2, y2) {
- if (!doStroke) {
- return;
- }
- x1 = Math.round(x1);
- x2 = Math.round(x2);
- y1 = Math.round(y1);
- y2 = Math.round(y2);
- // A line is only defined if it has different start and end coordinates.
- // If they are the same, we call point instead.
- if (x1 === x2 && y1 === y2) {
- p.point(x1, y1);
- return;
- }
-
- var swap = undef,
- lineCap = undef,
- drawCrisp = true,
- currentModelView = modelView.array(),
- identityMatrix = [1, 0, 0, 0, 1, 0];
- // Test if any transformations have been applied to the sketch
- for (var i = 0; i < 6 && drawCrisp; i++) {
- drawCrisp = currentModelView[i] === identityMatrix[i];
- }
- /* Draw crisp lines if the line is vertical or horizontal with the following method
- * If any transformations have been applied to the sketch, don't make the line crisp
- * If the line is directed up or to the left, reverse it by swapping x1/x2 or y1/y2
- * Make the line 1 pixel longer to work around cross-platform canvas implementations
- * If the lineWidth is odd, translate the line by 0.5 in the perpendicular direction
- * Even lineWidths do not need to be translated because the canvas will draw them on pixel boundaries
- * Change the cap to butt-end to work around cross-platform canvas implementations
- * Reverse the translate and lineCap canvas state changes after drawing the line
- */
- if (drawCrisp) {
- if (x1 === x2) {
- if (y1 > y2) {
- swap = y1;
- y1 = y2;
- y2 = swap;
- }
- y2++;
- if (lineWidth % 2 === 1) {
- curContext.translate(0.5, 0.0);
- }
- } else if (y1 === y2) {
- if (x1 > x2) {
- swap = x1;
- x1 = x2;
- x2 = swap;
- }
- x2++;
- if (lineWidth % 2 === 1) {
- curContext.translate(0.0, 0.5);
- }
- }
- if (lineWidth === 1) {
- lineCap = curContext.lineCap;
- curContext.lineCap = 'butt';
- }
- }
- curContext.beginPath();
- curContext.moveTo(x1 || 0, y1 || 0);
- curContext.lineTo(x2 || 0, y2 || 0);
- executeContextStroke();
- if (drawCrisp) {
- if (x1 === x2 && lineWidth % 2 === 1) {
- curContext.translate(-0.5, 0.0);
- } else if (y1 === y2 && lineWidth % 2 === 1) {
- curContext.translate(0.0, -0.5);
- }
- if (lineWidth === 1) {
- curContext.lineCap = lineCap;
- }
- }
- };
-
- Drawing3D.prototype.line = function(x1, y1, z1, x2, y2, z2) {
- if (y2 === undef || z2 === undef) { // 2D line called in 3D context
- z2 = 0;
- y2 = x2;
- x2 = z1;
- z1 = 0;
- }
-
- // a line is only defined if it has different start and end coordinates.
- // If they are the same, we call point instead.
- if (x1===x2 && y1===y2 && z1===z2) {
- p.point(x1,y1,z1);
- return;
- }
-
- var lineVerts = [x1, y1, z1, x2, y2, z2];
-
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- if (lineWidth > 0 && doStroke) {
- curContext.useProgram(programObject2D);
-
- uniformMatrix("model2d", programObject2D, "model", false, [1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1]);
- uniformMatrix("view2d", programObject2D, "view", false, view.array());
-
- uniformf("color2d", programObject2D, "color", strokeStyle);
- uniformi("picktype2d", programObject2D, "picktype", 0);
-
- vertexAttribPointer("vertex2d", programObject2D, "Vertex", 3, lineBuffer);
- disableVertexAttribPointer("aTextureCoord2d", programObject2D, "aTextureCoord");
-
- curContext.bufferData(curContext.ARRAY_BUFFER, new Float32Array(lineVerts), curContext.STREAM_DRAW);
- curContext.drawArrays(curContext.LINES, 0, 2);
- }
- };
-
- /**
- * Draws a Bezier curve on the screen. These curves are defined by a series of anchor and control points. The first
- * two parameters specify the first anchor point and the last two parameters specify the other anchor point. The
- * middle parameters specify the control points which define the shape of the curve. Bezier curves were developed
- * by French engineer Pierre Bezier. Using the 3D version of requires rendering with P3D or OPENGL (see the
- * Environment reference for more information).
- *
- * @param {int | float} x1,y1,z1 coordinates for the first anchor point
- * @param {int | float} cx1,cy1,cz1 coordinates for the first control point
- * @param {int | float} cx2,cy2,cz2 coordinates for the second control point
- * @param {int | float} x2,y2,z2 coordinates for the second anchor point
- *
- * @see bezierVertex
- * @see curve
- */
- Drawing2D.prototype.bezier = function() {
- if (arguments.length !== 8) {
- throw("You must use 8 parameters for bezier() in 2D mode");
- }
-
- p.beginShape();
- p.vertex( arguments[0], arguments[1] );
- p.bezierVertex( arguments[2], arguments[3],
- arguments[4], arguments[5],
- arguments[6], arguments[7] );
- p.endShape();
- };
-
- Drawing3D.prototype.bezier = function() {
- if (arguments.length !== 12) {
- throw("You must use 12 parameters for bezier() in 3D mode");
- }
-
- p.beginShape();
- p.vertex( arguments[0], arguments[1], arguments[2] );
- p.bezierVertex( arguments[3], arguments[4], arguments[5],
- arguments[6], arguments[7], arguments[8],
- arguments[9], arguments[10], arguments[11] );
- p.endShape();
- };
-
- /**
- * Sets the resolution at which Beziers display. The default value is 20. This function is only useful when using the P3D
- * or OPENGL renderer as the default (JAVA2D) renderer does not use this information.
- *
- * @param {int} detail resolution of the curves
- *
- * @see curve
- * @see curveVertex
- * @see curveTightness
- */
- p.bezierDetail = function( detail ){
- bezDetail = detail;
- };
-
- /**
- * The bezierPoint() function evalutes quadratic bezier at point t for points a, b, c, d.
- * The parameter t varies between 0 and 1. The a and d parameters are the
- * on-curve points, b and c are the control points. To make a two-dimensional
- * curve, call this function once with the x coordinates and a second time
- * with the y coordinates to get the location of a bezier curve at t.
- *
- * @param {float} a coordinate of first point on the curve
- * @param {float} b coordinate of first control point
- * @param {float} c coordinate of second control point
- * @param {float} d coordinate of second point on the curve
- * @param {float} t value between 0 and 1
- *
- * @see #bezier()
- * @see #bezierVertex()
- * @see #curvePoint()
- */
- p.bezierPoint = function(a, b, c, d, t) {
- return (1 - t) * (1 - t) * (1 - t) * a + 3 * (1 - t) * (1 - t) * t * b + 3 * (1 - t) * t * t * c + t * t * t * d;
- };
-
- /**
- * The bezierTangent() function calculates the tangent of a point on a Bezier curve. There is a good
- * definition of "tangent" at Wikipedia: http://en.wikipedia.org/wiki/Tangent
- *
- * @param {float} a coordinate of first point on the curve
- * @param {float} b coordinate of first control point
- * @param {float} c coordinate of second control point
- * @param {float} d coordinate of second point on the curve
- * @param {float} t value between 0 and 1
- *
- * @see #bezier()
- * @see #bezierVertex()
- * @see #curvePoint()
- */
- p.bezierTangent = function(a, b, c, d, t) {
- return (3 * t * t * (-a + 3 * b - 3 * c + d) + 6 * t * (a - 2 * b + c) + 3 * (-a + b));
- };
-
- /**
- * The curvePoint() function evalutes the Catmull-Rom curve at point t for points a, b, c, d. The
- * parameter t varies between 0 and 1, a and d are points on the curve,
- * and b and c are the control points. This can be done once with the x
- * coordinates and a second time with the y coordinates to get the
- * location of a curve at t.
- *
- * @param {int|float} a coordinate of first point on the curve
- * @param {int|float} b coordinate of second point on the curve
- * @param {int|float} c coordinate of third point on the curve
- * @param {int|float} d coordinate of fourth point on the curve
- * @param {float} t value between 0 and 1
- *
- * @see #curve()
- * @see #curveVertex()
- * @see #bezierPoint()
- */
- p.curvePoint = function(a, b, c, d, t) {
- return 0.5 * ((2 * b) + (-a + c) * t + (2 * a - 5 * b + 4 * c - d) * t * t + (-a + 3 * b - 3 * c + d) * t * t * t);
- };
-
- /**
- * The curveTangent() function calculates the tangent of a point on a Catmull-Rom curve.
- * There is a good definition of "tangent" at Wikipedia: http://en.wikipedia.org/wiki/Tangent.
- *
- * @param {int|float} a coordinate of first point on the curve
- * @param {int|float} b coordinate of first control point
- * @param {int|float} c coordinate of second control point
- * @param {int|float} d coordinate of second point on the curve
- * @param {float} t value between 0 and 1
- *
- * @see #curve()
- * @see #curveVertex()
- * @see #curvePoint()
- * @see #bezierTangent()
- */
- p.curveTangent = function(a, b, c, d, t) {
- return 0.5 * ((-a + c) + 2 * (2 * a - 5 * b + 4 * c - d) * t + 3 * (-a + 3 * b - 3 * c + d) * t * t);
- };
-
- /**
- * A triangle is a plane created by connecting three points. The first two arguments specify the first point,
- * the middle two arguments specify the second point, and the last two arguments specify the third point.
- *
- * @param {int | float} x1 x-coordinate of the first point
- * @param {int | float} y1 y-coordinate of the first point
- * @param {int | float} x2 x-coordinate of the second point
- * @param {int | float} y2 y-coordinate of the second point
- * @param {int | float} x3 x-coordinate of the third point
- * @param {int | float} y3 y-coordinate of the third point
- */
- p.triangle = function(x1, y1, x2, y2, x3, y3) {
- p.beginShape(PConstants.TRIANGLES);
- p.vertex(x1, y1, 0);
- p.vertex(x2, y2, 0);
- p.vertex(x3, y3, 0);
- p.endShape();
- };
-
- /**
- * A quad is a quadrilateral, a four sided polygon. It is similar to a rectangle, but the angles between its
- * edges are not constrained to ninety degrees. The first pair of parameters (x1,y1) sets the first vertex
- * and the subsequent pairs should proceed clockwise or counter-clockwise around the defined shape.
- *
- * @param {float | int} x1 x-coordinate of the first corner
- * @param {float | int} y1 y-coordinate of the first corner
- * @param {float | int} x2 x-coordinate of the second corner
- * @param {float | int} y2 y-coordinate of the second corner
- * @param {float | int} x3 x-coordinate of the third corner
- * @param {float | int} y3 y-coordinate of the third corner
- * @param {float | int} x4 x-coordinate of the fourth corner
- * @param {float | int} y4 y-coordinate of the fourth corner
- */
- p.quad = function(x1, y1, x2, y2, x3, y3, x4, y4) {
- p.beginShape(PConstants.QUADS);
- p.vertex(x1, y1, 0);
- p.vertex(x2, y2, 0);
- p.vertex(x3, y3, 0);
- p.vertex(x4, y4, 0);
- p.endShape();
- };
-
- var roundedRect$2d = function(x, y, width, height, tl, tr, br, bl) {
- if (bl === undef) {
- tr = tl;
- br = tl;
- bl = tl;
- }
- var halfWidth = width / 2,
- halfHeight = height / 2;
- if (tl > halfWidth || tl > halfHeight) {
- tl = Math.min(halfWidth, halfHeight);
- }
- if (tr > halfWidth || tr > halfHeight) {
- tr = Math.min(halfWidth, halfHeight);
- }
- if (br > halfWidth || br > halfHeight) {
- br = Math.min(halfWidth, halfHeight);
- }
- if (bl > halfWidth || bl > halfHeight) {
- bl = Math.min(halfWidth, halfHeight);
- }
- // Translate the stroke by (0.5, 0.5) to draw a crisp border
- if (!doFill || doStroke) {
- curContext.translate(0.5, 0.5);
- }
- curContext.beginPath();
- curContext.moveTo(x + tl, y);
- curContext.lineTo(x + width - tr, y);
- curContext.quadraticCurveTo(x + width, y, x + width, y + tr);
- curContext.lineTo(x + width, y + height - br);
- curContext.quadraticCurveTo(x + width, y + height, x + width - br, y + height);
- curContext.lineTo(x + bl, y + height);
- curContext.quadraticCurveTo(x, y + height, x, y + height - bl);
- curContext.lineTo(x, y + tl);
- curContext.quadraticCurveTo(x, y, x + tl, y);
- if (!doFill || doStroke) {
- curContext.translate(-0.5, -0.5);
- }
- executeContextFill();
- executeContextStroke();
- };
-
- /**
- * Draws a rectangle to the screen. A rectangle is a four-sided shape with every angle at ninety
- * degrees. The first two parameters set the location, the third sets the width, and the fourth
- * sets the height. The origin is changed with the rectMode() function.
- *
- * @param {int|float} x x-coordinate of the rectangle
- * @param {int|float} y y-coordinate of the rectangle
- * @param {int|float} width width of the rectangle
- * @param {int|float} height height of the rectangle
- *
- * @see rectMode
- * @see quad
- */
- Drawing2D.prototype.rect = function(x, y, width, height, tl, tr, br, bl) {
- if (!width && !height) {
- return;
- }
-
- if (curRectMode === PConstants.CORNERS) {
- width -= x;
- height -= y;
- } else if (curRectMode === PConstants.RADIUS) {
- width *= 2;
- height *= 2;
- x -= width / 2;
- y -= height / 2;
- } else if (curRectMode === PConstants.CENTER) {
- x -= width / 2;
- y -= height / 2;
- }
-
- x = Math.round(x);
- y = Math.round(y);
- width = Math.round(width);
- height = Math.round(height);
- if (tl !== undef) {
- roundedRect$2d(x, y, width, height, tl, tr, br, bl);
- return;
- }
-
- // Translate the line by (0.5, 0.5) to draw a crisp rectangle border
- if (doStroke && lineWidth % 2 === 1) {
- curContext.translate(0.5, 0.5);
- }
- curContext.beginPath();
- curContext.rect(x, y, width, height);
- executeContextFill();
- executeContextStroke();
- if (doStroke && lineWidth % 2 === 1) {
- curContext.translate(-0.5, -0.5);
- }
- };
-
- Drawing3D.prototype.rect = function(x, y, width, height, tl, tr, br, bl) {
- if (tl !== undef) {
- throw "rect() with rounded corners is not supported in 3D mode";
- }
-
- if (curRectMode === PConstants.CORNERS) {
- width -= x;
- height -= y;
- } else if (curRectMode === PConstants.RADIUS) {
- width *= 2;
- height *= 2;
- x -= width / 2;
- y -= height / 2;
- } else if (curRectMode === PConstants.CENTER) {
- x -= width / 2;
- y -= height / 2;
- }
-
- // Modeling transformation
- var model = new PMatrix3D();
- model.translate(x, y, 0);
- model.scale(width, height, 1);
- model.transpose();
-
- // viewing transformation needs to have Y flipped
- // becuase that's what Processing does.
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- if (lineWidth > 0 && doStroke) {
- curContext.useProgram(programObject2D);
- uniformMatrix("model2d", programObject2D, "model", false, model.array());
- uniformMatrix("view2d", programObject2D, "view", false, view.array());
- uniformf("color2d", programObject2D, "color", strokeStyle);
- uniformi("picktype2d", programObject2D, "picktype", 0);
- vertexAttribPointer("vertex2d", programObject2D, "Vertex", 3, rectBuffer);
- disableVertexAttribPointer("aTextureCoord2d", programObject2D, "aTextureCoord");
- curContext.drawArrays(curContext.LINE_LOOP, 0, rectVerts.length / 3);
- }
-
- if (doFill) {
- curContext.useProgram(programObject3D);
- uniformMatrix("model3d", programObject3D, "model", false, model.array());
- uniformMatrix("view3d", programObject3D, "view", false, view.array());
-
- // fix stitching problems. (lines get occluded by triangles
- // since they share the same depth values). This is not entirely
- // working, but it's a start for drawing the outline. So
- // developers can start playing around with styles.
- curContext.enable(curContext.POLYGON_OFFSET_FILL);
- curContext.polygonOffset(1, 1);
-
- uniformf("color3d", programObject3D, "color", fillStyle);
-
- if(lightCount > 0){
- var v = new PMatrix3D();
- v.set(view);
-
- var m = new PMatrix3D();
- m.set(model);
-
- v.mult(m);
-
- var normalMatrix = new PMatrix3D();
- normalMatrix.set(v);
- normalMatrix.invert();
- normalMatrix.transpose();
-
- uniformMatrix("normalTransform3d", programObject3D, "normalTransform", false, normalMatrix.array());
- vertexAttribPointer("normal3d", programObject3D, "Normal", 3, rectNormBuffer);
- }
- else{
- disableVertexAttribPointer("normal3d", programObject3D, "Normal");
- }
-
- vertexAttribPointer("vertex3d", programObject3D, "Vertex", 3, rectBuffer);
-
- curContext.drawArrays(curContext.TRIANGLE_FAN, 0, rectVerts.length / 3);
- curContext.disable(curContext.POLYGON_OFFSET_FILL);
- }
- };
-
- /**
- * Draws an ellipse (oval) in the display window. An ellipse with an equal width and height is a circle.
- * The first two parameters set the location, the third sets the width, and the fourth sets the height. The origin may be
- * changed with the ellipseMode() function.
- *
- * @param {float|int} x x-coordinate of the ellipse
- * @param {float|int} y y-coordinate of the ellipse
- * @param {float|int} width width of the ellipse
- * @param {float|int} height height of the ellipse
- *
- * @see ellipseMode
- */
- Drawing2D.prototype.ellipse = function(x, y, width, height) {
- x = x || 0;
- y = y || 0;
-
- if (width <= 0 && height <= 0) {
- return;
- }
-
- if (curEllipseMode === PConstants.RADIUS) {
- width *= 2;
- height *= 2;
- } else if (curEllipseMode === PConstants.CORNERS) {
- width = width - x;
- height = height - y;
- x += width / 2;
- y += height / 2;
- } else if (curEllipseMode === PConstants.CORNER) {
- x += width / 2;
- y += height / 2;
- }
-
- // Shortcut for drawing a 2D circle
- if (width === height) {
- curContext.beginPath();
- curContext.arc(x, y, width / 2, 0, PConstants.TWO_PI, false);
- executeContextFill();
- executeContextStroke();
- } else {
- var w = width / 2,
- h = height / 2,
- C = 0.5522847498307933,
- c_x = C * w,
- c_y = C * h;
-
- p.beginShape();
- p.vertex(x + w, y);
- p.bezierVertex(x + w, y - c_y, x + c_x, y - h, x, y - h);
- p.bezierVertex(x - c_x, y - h, x - w, y - c_y, x - w, y);
- p.bezierVertex(x - w, y + c_y, x - c_x, y + h, x, y + h);
- p.bezierVertex(x + c_x, y + h, x + w, y + c_y, x + w, y);
- p.endShape();
- }
- };
-
- Drawing3D.prototype.ellipse = function(x, y, width, height) {
- x = x || 0;
- y = y || 0;
-
- if (width <= 0 && height <= 0) {
- return;
- }
-
- if (curEllipseMode === PConstants.RADIUS) {
- width *= 2;
- height *= 2;
- } else if (curEllipseMode === PConstants.CORNERS) {
- width = width - x;
- height = height - y;
- x += width / 2;
- y += height / 2;
- } else if (curEllipseMode === PConstants.CORNER) {
- x += width / 2;
- y += height / 2;
- }
-
- var w = width / 2,
- h = height / 2,
- C = 0.5522847498307933,
- c_x = C * w,
- c_y = C * h;
-
- p.beginShape();
- p.vertex(x + w, y);
- p.bezierVertex(x + w, y - c_y, 0, x + c_x, y - h, 0, x, y - h, 0);
- p.bezierVertex(x - c_x, y - h, 0, x - w, y - c_y, 0, x - w, y, 0);
- p.bezierVertex(x - w, y + c_y, 0, x - c_x, y + h, 0, x, y + h, 0);
- p.bezierVertex(x + c_x, y + h, 0, x + w, y + c_y, 0, x + w, y, 0);
- p.endShape();
-
- if (doFill) {
- //temporary workaround to not working fills for bezier -- will fix later
- var xAv = 0, yAv = 0, i, j;
- for (i = 0; i < vertArray.length; i++) {
- xAv += vertArray[i][0];
- yAv += vertArray[i][1];
- }
- xAv /= vertArray.length;
- yAv /= vertArray.length;
- var vert = [],
- fillVertArray = [],
- colorVertArray = [];
- vert[0] = xAv;
- vert[1] = yAv;
- vert[2] = 0;
- vert[3] = 0;
- vert[4] = 0;
- vert[5] = fillStyle[0];
- vert[6] = fillStyle[1];
- vert[7] = fillStyle[2];
- vert[8] = fillStyle[3];
- vert[9] = strokeStyle[0];
- vert[10] = strokeStyle[1];
- vert[11] = strokeStyle[2];
- vert[12] = strokeStyle[3];
- vert[13] = normalX;
- vert[14] = normalY;
- vert[15] = normalZ;
- vertArray.unshift(vert);
- for (i = 0; i < vertArray.length; i++) {
- for (j = 0; j < 3; j++) {
- fillVertArray.push(vertArray[i][j]);
- }
- for (j = 5; j < 9; j++) {
- colorVertArray.push(vertArray[i][j]);
- }
- }
- fill3D(fillVertArray, "TRIANGLE_FAN", colorVertArray);
- }
- };
-
- /**
- * Sets the current normal vector. This is for drawing three dimensional shapes and surfaces and
- * specifies a vector perpendicular to the surface of the shape which determines how lighting affects
- * it. Processing attempts to automatically assign normals to shapes, but since that's imperfect,
- * this is a better option when you want more control. This function is identical to glNormal3f() in OpenGL.
- *
- * @param {float} nx x direction
- * @param {float} ny y direction
- * @param {float} nz z direction
- *
- * @see beginShape
- * @see endShape
- * @see lights
- */
- p.normal = function(nx, ny, nz) {
- if (arguments.length !== 3 || !(typeof nx === "number" && typeof ny === "number" && typeof nz === "number")) {
- throw "normal() requires three numeric arguments.";
- }
-
- normalX = nx;
- normalY = ny;
- normalZ = nz;
-
- if (curShape !== 0) {
- if (normalMode === PConstants.NORMAL_MODE_AUTO) {
- normalMode = PConstants.NORMAL_MODE_SHAPE;
- } else if (normalMode === PConstants.NORMAL_MODE_SHAPE) {
- normalMode = PConstants.NORMAL_MODE_VERTEX;
- }
- }
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // Raster drawing functions
- ////////////////////////////////////////////////////////////////////////////
-
- /**
- * Saves an image from the display window. Images are saved in TIFF, TARGA, JPEG, and PNG format
- * depending on the extension within the filename parameter. For example, "image.tif" will have
- * a TIFF image and "image.png" will save a PNG image. If no extension is included in the filename,
- * the image will save in TIFF format and .tif will be added to the name. These files are saved to
- * the sketch's folder, which may be opened by selecting "Show sketch folder" from the "Sketch" menu.
- * It is not possible to use save() while running the program in a web browser. All images saved
- * from the main drawing window will be opaque. To save images without a background, use createGraphics().
- *
- * @param {String} filename any sequence of letters and numbers
- *
- * @see saveFrame
- * @see createGraphics
- */
- p.save = function(file, img) {
- // file is unused at the moment
- // may implement this differently in later release
- if (img !== undef) {
- return window.open(img.toDataURL(),"_blank");
- }
- return window.open(p.externals.canvas.toDataURL(),"_blank");
- };
-
- var saveNumber = 0;
-
- p.saveFrame = function(file) {
- if(file === undef) {
- // use default name template if parameter is not specified
- file = "screen-####.png";
- }
- // Increment changeable part: screen-0000.png, screen-0001.png, ...
- var frameFilename = file.replace(/#+/, function(all) {
- var s = "" + (saveNumber++);
- while(s.length < all.length) {
- s = "0" + s;
- }
- return s;
- });
- p.save(frameFilename);
- };
-
- var utilityContext2d = document.createElement("canvas").getContext("2d");
-
- var canvasDataCache = [undef, undef, undef]; // we need three for now
-
- function getCanvasData(obj, w, h) {
- var canvasData = canvasDataCache.shift();
-
- if (canvasData === undef) {
- canvasData = {};
- canvasData.canvas = document.createElement("canvas");
- canvasData.context = canvasData.canvas.getContext('2d');
- }
-
- canvasDataCache.push(canvasData);
-
- var canvas = canvasData.canvas, context = canvasData.context,
- width = w || obj.width, height = h || obj.height;
-
- canvas.width = width;
- canvas.height = height;
-
- if (!obj) {
- context.clearRect(0, 0, width, height);
- } else if ("data" in obj) { // ImageData
- context.putImageData(obj, 0, 0);
- } else {
- context.clearRect(0, 0, width, height);
- context.drawImage(obj, 0, 0, width, height);
- }
- return canvasData;
- }
-
- /**
- * Handle the sketch code for pixels[] and pixels.length
- * parser code converts pixels[] to getPixels()
- * or setPixels(), .length becomes getLength()
- */
- function buildPixelsObject(pImage) {
- return {
-
- getLength: (function(aImg) {
- return function() {
- if (aImg.isRemote) {
- throw "Image is loaded remotely. Cannot get length.";
- } else {
- return aImg.imageData.data.length ? aImg.imageData.data.length/4 : 0;
- }
- };
- }(pImage)),
-
- getPixel: (function(aImg) {
- return function(i) {
- var offset = i*4,
- data = aImg.imageData.data;
-
- if (aImg.isRemote) {
- throw "Image is loaded remotely. Cannot get pixels.";
- }
-
- return (data[offset+3] << 24) & PConstants.ALPHA_MASK |
- (data[offset] << 16) & PConstants.RED_MASK |
- (data[offset+1] << 8) & PConstants.GREEN_MASK |
- data[offset+2] & PConstants.BLUE_MASK;
- };
- }(pImage)),
-
- setPixel: (function(aImg) {
- return function(i, c) {
- var offset = i*4,
- data = aImg.imageData.data;
-
- if (aImg.isRemote) {
- throw "Image is loaded remotely. Cannot set pixel.";
- }
-
- data[offset+0] = (c & PConstants.RED_MASK) >>> 16;
- data[offset+1] = (c & PConstants.GREEN_MASK) >>> 8;
- data[offset+2] = (c & PConstants.BLUE_MASK);
- data[offset+3] = (c & PConstants.ALPHA_MASK) >>> 24;
- aImg.__isDirty = true;
- };
- }(pImage)),
-
- toArray: (function(aImg) {
- return function() {
- var arr = [],
- data = aImg.imageData.data,
- length = aImg.width * aImg.height;
-
- if (aImg.isRemote) {
- throw "Image is loaded remotely. Cannot get pixels.";
- }
-
- for (var i = 0, offset = 0; i < length; i++, offset += 4) {
- arr.push( (data[offset+3] << 24) & PConstants.ALPHA_MASK |
- (data[offset] << 16) & PConstants.RED_MASK |
- (data[offset+1] << 8) & PConstants.GREEN_MASK |
- data[offset+2] & PConstants.BLUE_MASK );
- }
- return arr;
- };
- }(pImage)),
-
- set: (function(aImg) {
- return function(arr) {
- var offset,
- data,
- c;
- if (this.isRemote) {
- throw "Image is loaded remotely. Cannot set pixels.";
- }
-
- data = aImg.imageData.data;
- for (var i = 0, aL = arr.length; i < aL; i++) {
- c = arr[i];
- offset = i*4;
-
- data[offset+0] = (c & PConstants.RED_MASK) >>> 16;
- data[offset+1] = (c & PConstants.GREEN_MASK) >>> 8;
- data[offset+2] = (c & PConstants.BLUE_MASK);
- data[offset+3] = (c & PConstants.ALPHA_MASK) >>> 24;
- }
- aImg.__isDirty = true;
- };
- }(pImage))
-
- };
- }
-
- /**
- * Datatype for storing images. Processing can display .gif, .jpg, .tga, and .png images. Images may be
- * displayed in 2D and 3D space. Before an image is used, it must be loaded with the loadImage() function.
- * The PImage object contains fields for the width and height of the image, as well as an array called
- * pixels[] which contains the values for every pixel in the image. A group of methods, described below,
- * allow easy access to the image's pixels and alpha channel and simplify the process of compositing.
- * Before using the pixels[] array, be sure to use the loadPixels() method on the image to make sure that the
- * pixel data is properly loaded. To create a new image, use the createImage() function (do not use new PImage()).
- *
- * @param {int} width image width
- * @param {int} height image height
- * @param {MODE} format Either RGB, ARGB, ALPHA (grayscale alpha channel)
- *
- * @returns {PImage}
- *
- * @see loadImage
- * @see imageMode
- * @see createImage
- */
- var PImage = function(aWidth, aHeight, aFormat) {
-
- // Keep track of whether or not the cached imageData has been touched.
- this.__isDirty = false;
-
- if (aWidth instanceof HTMLImageElement) {
- // convert an ![]()
to a PImage
- this.fromHTMLImageData(aWidth);
- } else if (aHeight || aFormat) {
- this.width = aWidth || 1;
- this.height = aHeight || 1;
-
- // Stuff a canvas into sourceImg so image() calls can use drawImage like an ![]()
- var canvas = this.sourceImg = document.createElement("canvas");
- canvas.width = this.width;
- canvas.height = this.height;
-
- var imageData = this.imageData = canvas.getContext('2d').createImageData(this.width, this.height);
- this.format = (aFormat === PConstants.ARGB || aFormat === PConstants.ALPHA) ? aFormat : PConstants.RGB;
- if (this.format === PConstants.RGB) {
- // Set the alpha channel of an RGB image to opaque.
- for (var i = 3, data = this.imageData.data, len = data.length; i < len; i += 4) {
- data[i] = 255;
- }
- }
-
- this.__isDirty = true;
- this.updatePixels();
- } else {
- this.width = 0;
- this.height = 0;
- this.imageData = utilityContext2d.createImageData(1, 1);
- this.format = PConstants.ARGB;
- }
-
- this.pixels = buildPixelsObject(this);
- };
- PImage.prototype = {
-
- /**
- * Temporary hack to deal with cross-Processing-instance created PImage. See
- * tickets #1623 and #1644.
- */
- __isPImage: true,
-
- /**
- * @member PImage
- * Updates the image with the data in its pixels[] array. Use in conjunction with loadPixels(). If
- * you're only reading pixels from the array, there's no need to call updatePixels().
- * Certain renderers may or may not seem to require loadPixels() or updatePixels(). However, the rule
- * is that any time you want to manipulate the pixels[] array, you must first call loadPixels(), and
- * after changes have been made, call updatePixels(). Even if the renderer may not seem to use this
- * function in the current Processing release, this will always be subject to change.
- * Currently, none of the renderers use the additional parameters to updatePixels().
- */
- updatePixels: function() {
- var canvas = this.sourceImg;
- if (canvas && canvas instanceof HTMLCanvasElement && this.__isDirty) {
- canvas.getContext('2d').putImageData(this.imageData, 0, 0);
- }
- this.__isDirty = false;
- },
-
- fromHTMLImageData: function(htmlImg) {
- // convert an ![]()
to a PImage
- var canvasData = getCanvasData(htmlImg);
- try {
- var imageData = canvasData.context.getImageData(0, 0, htmlImg.width, htmlImg.height);
- this.fromImageData(imageData);
- } catch(e) {
- if (htmlImg.width && htmlImg.height) {
- this.isRemote = true;
- this.width = htmlImg.width;
- this.height = htmlImg.height;
- }
- }
- this.sourceImg = htmlImg;
- },
-
- 'get': function(x, y, w, h) {
- if (!arguments.length) {
- return p.get(this);
- }
- if (arguments.length === 2) {
- return p.get(x, y, this);
- }
- if (arguments.length === 4) {
- return p.get(x, y, w, h, this);
- }
- },
-
- /**
- * @member PImage
- * Changes the color of any pixel or writes an image directly into the image. The x and y parameter
- * specify the pixel or the upper-left corner of the image. The color parameter specifies the color value.
- * Setting the color of a single pixel with set(x, y) is easy, but not as fast as putting the data
- * directly into pixels[]. The equivalent statement to "set(x, y, #000000)" using pixels[] is
- * "pixels[y*width+x] = #000000". Processing requires calling loadPixels() to load the display window
- * data into the pixels[] array before getting the values and calling updatePixels() to update the window.
- *
- * @param {int} x x-coordinate of the pixel or upper-left corner of the image
- * @param {int} y y-coordinate of the pixel or upper-left corner of the image
- * @param {color} color any value of the color datatype
- *
- * @see get
- * @see pixels[]
- * @see copy
- */
- 'set': function(x, y, c) {
- p.set(x, y, c, this);
- this.__isDirty = true;
- },
-
- /**
- * @member PImage
- * Blends a region of pixels into the image specified by the img parameter. These copies utilize full
- * alpha channel support and a choice of the following modes to blend the colors of source pixels (A)
- * with the ones of pixels in the destination image (B):
- * BLEND - linear interpolation of colours: C = A*factor + B
- * ADD - additive blending with white clip: C = min(A*factor + B, 255)
- * SUBTRACT - subtractive blending with black clip: C = max(B - A*factor, 0)
- * DARKEST - only the darkest colour succeeds: C = min(A*factor, B)
- * LIGHTEST - only the lightest colour succeeds: C = max(A*factor, B)
- * DIFFERENCE - subtract colors from underlying image.
- * EXCLUSION - similar to DIFFERENCE, but less extreme.
- * MULTIPLY - Multiply the colors, result will always be darker.
- * SCREEN - Opposite multiply, uses inverse values of the colors.
- * OVERLAY - A mix of MULTIPLY and SCREEN. Multiplies dark values, and screens light values.
- * HARD_LIGHT - SCREEN when greater than 50% gray, MULTIPLY when lower.
- * SOFT_LIGHT - Mix of DARKEST and LIGHTEST. Works like OVERLAY, but not as harsh.
- * DODGE - Lightens light tones and increases contrast, ignores darks. Called "Color Dodge" in Illustrator and Photoshop.
- * BURN - Darker areas are applied, increasing contrast, ignores lights. Called "Color Burn" in Illustrator and Photoshop.
- * All modes use the alpha information (highest byte) of source image pixels as the blending factor.
- * If the source and destination regions are different sizes, the image will be automatically resized to
- * match the destination size. If the srcImg parameter is not used, the display window is used as the source image.
- * This function ignores imageMode().
- *
- * @param {int} x X coordinate of the source's upper left corner
- * @param {int} y Y coordinate of the source's upper left corner
- * @param {int} width source image width
- * @param {int} height source image height
- * @param {int} dx X coordinate of the destinations's upper left corner
- * @param {int} dy Y coordinate of the destinations's upper left corner
- * @param {int} dwidth destination image width
- * @param {int} dheight destination image height
- * @param {PImage} srcImg an image variable referring to the source image
- * @param {MODE} MODE Either BLEND, ADD, SUBTRACT, LIGHTEST, DARKEST, DIFFERENCE, EXCLUSION,
- * MULTIPLY, SCREEN, OVERLAY, HARD_LIGHT, SOFT_LIGHT, DODGE, BURN
- *
- * @see alpha
- * @see copy
- */
- blend: function(srcImg, x, y, width, height, dx, dy, dwidth, dheight, MODE) {
- if (arguments.length === 9) {
- p.blend(this, srcImg, x, y, width, height, dx, dy, dwidth, dheight, this);
- } else if (arguments.length === 10) {
- p.blend(srcImg, x, y, width, height, dx, dy, dwidth, dheight, MODE, this);
- }
- delete this.sourceImg;
- },
-
- /**
- * @member PImage
- * Copies a region of pixels from one image into another. If the source and destination regions
- * aren't the same size, it will automatically resize source pixels to fit the specified target region.
- * No alpha information is used in the process, however if the source image has an alpha channel set,
- * it will be copied as well. This function ignores imageMode().
- *
- * @param {int} sx X coordinate of the source's upper left corner
- * @param {int} sy Y coordinate of the source's upper left corner
- * @param {int} swidth source image width
- * @param {int} sheight source image height
- * @param {int} dx X coordinate of the destinations's upper left corner
- * @param {int} dy Y coordinate of the destinations's upper left corner
- * @param {int} dwidth destination image width
- * @param {int} dheight destination image height
- * @param {PImage} srcImg an image variable referring to the source image
- *
- * @see alpha
- * @see blend
- */
- copy: function(srcImg, sx, sy, swidth, sheight, dx, dy, dwidth, dheight) {
- if (arguments.length === 8) {
- p.blend(this, srcImg, sx, sy, swidth, sheight, dx, dy, dwidth, PConstants.REPLACE, this);
- } else if (arguments.length === 9) {
- p.blend(srcImg, sx, sy, swidth, sheight, dx, dy, dwidth, dheight, PConstants.REPLACE, this);
- }
- delete this.sourceImg;
- },
-
- /**
- * @member PImage
- * Filters an image as defined by one of the following modes:
- * THRESHOLD - converts the image to black and white pixels depending if they are above or below
- * the threshold defined by the level parameter. The level must be between 0.0 (black) and 1.0(white).
- * If no level is specified, 0.5 is used.
- * GRAY - converts any colors in the image to grayscale equivalents
- * INVERT - sets each pixel to its inverse value
- * POSTERIZE - limits each channel of the image to the number of colors specified as the level parameter
- * BLUR - executes a Guassian blur with the level parameter specifying the extent of the blurring.
- * If no level parameter is used, the blur is equivalent to Guassian blur of radius 1.
- * OPAQUE - sets the alpha channel to entirely opaque.
- * ERODE - reduces the light areas with the amount defined by the level parameter.
- * DILATE - increases the light areas with the amount defined by the level parameter
- *
- * @param {MODE} MODE Either THRESHOLD, GRAY, INVERT, POSTERIZE, BLUR, OPAQUE, ERODE, or DILATE
- * @param {int|float} param in the range from 0 to 1
- */
- filter: function(mode, param) {
- if (arguments.length === 2) {
- p.filter(mode, param, this);
- } else if (arguments.length === 1) {
- // no param specified, send null to show its invalid
- p.filter(mode, null, this);
- }
- delete this.sourceImg;
- },
-
- /**
- * @member PImage
- * Saves the image into a file. Images are saved in TIFF, TARGA, JPEG, and PNG format depending on
- * the extension within the filename parameter. For example, "image.tif" will have a TIFF image and
- * "image.png" will save a PNG image. If no extension is included in the filename, the image will save
- * in TIFF format and .tif will be added to the name. These files are saved to the sketch's folder,
- * which may be opened by selecting "Show sketch folder" from the "Sketch" menu. It is not possible to
- * use save() while running the program in a web browser.
- * To save an image created within the code, rather than through loading, it's necessary to make the
- * image with the createImage() function so it is aware of the location of the program and can therefore
- * save the file to the right place. See the createImage() reference for more information.
- *
- * @param {String} filename a sequence of letters and numbers
- */
- save: function(file){
- p.save(file,this);
- },
-
- /**
- * @member PImage
- * Resize the image to a new width and height. To make the image scale proportionally, use 0 as the
- * value for the wide or high parameter.
- *
- * @param {int} wide the resized image width
- * @param {int} high the resized image height
- *
- * @see get
- */
- resize: function(w, h) {
- if (this.isRemote) { // Remote images cannot access imageData
- throw "Image is loaded remotely. Cannot resize.";
- }
- if (this.width !== 0 || this.height !== 0) {
- // make aspect ratio if w or h is 0
- if (w === 0 && h !== 0) {
- w = Math.floor(this.width / this.height * h);
- } else if (h === 0 && w !== 0) {
- h = Math.floor(this.height / this.width * w);
- }
- // put 'this.imageData' into a new canvas
- var canvas = getCanvasData(this.imageData).canvas;
- // pull imageData object out of canvas into ImageData object
- var imageData = getCanvasData(canvas, w, h).context.getImageData(0, 0, w, h);
- // set this as new pimage
- this.fromImageData(imageData);
- }
- },
-
- /**
- * @member PImage
- * Masks part of an image from displaying by loading another image and using it as an alpha channel.
- * This mask image should only contain grayscale data, but only the blue color channel is used. The
- * mask image needs to be the same size as the image to which it is applied.
- * In addition to using a mask image, an integer array containing the alpha channel data can be
- * specified directly. This method is useful for creating dynamically generated alpha masks. This
- * array must be of the same length as the target image's pixels array and should contain only grayscale
- * data of values between 0-255.
- *
- * @param {PImage} maskImg any PImage object used as the alpha channel for "img", needs to be same
- * size as "img"
- * @param {int[]} maskArray any array of Integer numbers used as the alpha channel, needs to be same
- * length as the image's pixel array
- */
- mask: function(mask) {
- var obj = this.toImageData(),
- i,
- size;
-
- if (mask instanceof PImage || mask.__isPImage) {
- if (mask.width === this.width && mask.height === this.height) {
- mask = mask.toImageData();
-
- for (i = 2, size = this.width * this.height * 4; i < size; i += 4) {
- // using it as an alpha channel
- obj.data[i + 1] = mask.data[i];
- // but only the blue color channel
- }
- } else {
- throw "mask must have the same dimensions as PImage.";
- }
- } else if (mask instanceof Array) {
- if (this.width * this.height === mask.length) {
- for (i = 0, size = mask.length; i < size; ++i) {
- obj.data[i * 4 + 3] = mask[i];
- }
- } else {
- throw "mask array must be the same length as PImage pixels array.";
- }
- }
-
- this.fromImageData(obj);
- },
-
- // These are intentionally left blank for PImages, we work live with pixels and draw as necessary
- /**
- * @member PImage
- * Loads the pixel data for the image into its pixels[] array. This function must always be called
- * before reading from or writing to pixels[].
- * Certain renderers may or may not seem to require loadPixels() or updatePixels(). However, the
- * rule is that any time you want to manipulate the pixels[] array, you must first call loadPixels(),
- * and after changes have been made, call updatePixels(). Even if the renderer may not seem to use
- * this function in the current Processing release, this will always be subject to change.
- */
- loadPixels: nop,
-
- toImageData: function() {
- if (this.isRemote) {
- return this.sourceImg;
- }
-
- if (!this.__isDirty) {
- return this.imageData;
- }
-
- var canvasData = getCanvasData(this.imageData);
- return canvasData.context.getImageData(0, 0, this.width, this.height);
- },
-
- toDataURL: function() {
- if (this.isRemote) { // Remote images cannot access imageData
- throw "Image is loaded remotely. Cannot create dataURI.";
- }
- var canvasData = getCanvasData(this.imageData);
- return canvasData.canvas.toDataURL();
- },
-
- fromImageData: function(canvasImg) {
- var w = canvasImg.width,
- h = canvasImg.height,
- canvas = document.createElement('canvas'),
- ctx = canvas.getContext('2d');
-
- this.width = canvas.width = w;
- this.height = canvas.height = h;
-
- ctx.putImageData(canvasImg, 0, 0);
-
- // changed for 0.9
- this.format = PConstants.ARGB;
-
- this.imageData = canvasImg;
- this.sourceImg = canvas;
- }
- };
-
- p.PImage = PImage;
-
- /**
- * Creates a new PImage (the datatype for storing images). This provides a fresh buffer of pixels to play
- * with. Set the size of the buffer with the width and height parameters. The format parameter defines how
- * the pixels are stored. See the PImage reference for more information.
- * Be sure to include all three parameters, specifying only the width and height (but no format) will
- * produce a strange error.
- * Advanced users please note that createImage() should be used instead of the syntax new PImage().
- *
- * @param {int} width image width
- * @param {int} height image height
- * @param {MODE} format Either RGB, ARGB, ALPHA (grayscale alpha channel)
- *
- * @returns {PImage}
- *
- * @see PImage
- * @see PGraphics
- */
- p.createImage = function(w, h, mode) {
- return new PImage(w,h,mode);
- };
-
- // Loads an image for display. Type is an extension. Callback is fired on load.
- /**
- * Loads an image into a variable of type PImage. Four types of images ( .gif, .jpg, .tga, .png) images may
- * be loaded. To load correctly, images must be located in the data directory of the current sketch. In most
- * cases, load all images in setup() to preload them at the start of the program. Loading images inside draw()
- * will reduce the speed of a program.
- * The filename parameter can also be a URL to a file found online. For security reasons, a Processing sketch
- * found online can only download files from the same server from which it came. Getting around this restriction
- * requires a signed applet.
- * The extension parameter is used to determine the image type in cases where the image filename does not end
- * with a proper extension. Specify the extension as the second parameter to loadImage(), as shown in the
- * third example on this page.
- * If an image is not loaded successfully, the null value is returned and an error message will be printed to
- * the console. The error message does not halt the program, however the null value may cause a NullPointerException
- * if your code does not check whether the value returned from loadImage() is null.
- * Depending on the type of error, a PImage object may still be returned, but the width and height of the image
- * will be set to -1. This happens if bad image data is returned or cannot be decoded properly. Sometimes this happens
- * with image URLs that produce a 403 error or that redirect to a password prompt, because loadImage() will attempt
- * to interpret the HTML as image data.
- *
- * @param {String} filename name of file to load, can be .gif, .jpg, .tga, or a handful of other image
- * types depending on your platform.
- * @param {String} extension the type of image to load, for example "png", "gif", "jpg"
- *
- * @returns {PImage}
- *
- * @see PImage
- * @see image
- * @see imageMode
- * @see background
- */
- p.loadImage = function(file, type, callback) {
- // if type is specified add it with a . to file to make the filename
- if (type) {
- file = file + "." + type;
- }
- var pimg;
- // if image is in the preloader cache return a new PImage
- if (curSketch.imageCache.images[file]) {
- pimg = new PImage(curSketch.imageCache.images[file]);
- pimg.loaded = true;
- return pimg;
- }
- // else async load it
- pimg = new PImage();
- var img = document.createElement('img');
-
- pimg.sourceImg = img;
-
- img.onload = (function(aImage, aPImage, aCallback) {
- var image = aImage;
- var pimg = aPImage;
- var callback = aCallback;
- return function() {
- // change the ![]()
object into a PImage now that its loaded
- pimg.fromHTMLImageData(image);
- pimg.loaded = true;
- if (callback) {
- callback();
- }
- };
- }(img, pimg, callback));
-
- img.src = file; // needs to be called after the img.onload function is declared or it wont work in opera
- return pimg;
- };
-
- // async loading of large images, same functionality as loadImage above
- /**
- * This function load images on a separate thread so that your sketch does not freeze while images load during
- * setup(). While the image is loading, its width and height will be 0. If an error occurs while loading the image,
- * its width and height will be set to -1. You'll know when the image has loaded properly because its width and
- * height will be greater than 0. Asynchronous image loading (particularly when downloading from a server) can
- * dramatically improve performance.
- * The extension parameter is used to determine the image type in cases where the image filename does not end
- * with a proper extension. Specify the extension as the second parameter to requestImage().
- *
- * @param {String} filename name of file to load, can be .gif, .jpg, .tga, or a handful of other image
- * types depending on your platform.
- * @param {String} extension the type of image to load, for example "png", "gif", "jpg"
- *
- * @returns {PImage}
- *
- * @see PImage
- * @see loadImage
- */
- p.requestImage = p.loadImage;
-
- function get$2(x,y) {
- var data;
- // return the color at x,y (int) of curContext
- if (x >= p.width || x < 0 || y < 0 || y >= p.height) {
- // x,y is outside image return transparent black
- return 0;
- }
-
- // loadPixels() has been called
- if (isContextReplaced) {
- var offset = ((0|x) + p.width * (0|y)) * 4;
- data = p.imageData.data;
- return (data[offset + 3] << 24) & PConstants.ALPHA_MASK |
- (data[offset] << 16) & PConstants.RED_MASK |
- (data[offset + 1] << 8) & PConstants.GREEN_MASK |
- data[offset + 2] & PConstants.BLUE_MASK;
- }
-
- // x,y is inside canvas space
- data = p.toImageData(0|x, 0|y, 1, 1).data;
- return (data[3] << 24) & PConstants.ALPHA_MASK |
- (data[0] << 16) & PConstants.RED_MASK |
- (data[1] << 8) & PConstants.GREEN_MASK |
- data[2] & PConstants.BLUE_MASK;
- }
- function get$3(x,y,img) {
- if (img.isRemote) { // Remote images cannot access imageData
- throw "Image is loaded remotely. Cannot get x,y.";
- }
- // PImage.get(x,y) was called, return the color (int) at x,y of img
- var offset = y * img.width * 4 + (x * 4),
- data = img.imageData.data;
- return (data[offset + 3] << 24) & PConstants.ALPHA_MASK |
- (data[offset] << 16) & PConstants.RED_MASK |
- (data[offset + 1] << 8) & PConstants.GREEN_MASK |
- data[offset + 2] & PConstants.BLUE_MASK;
- }
- function get$4(x, y, w, h) {
- // return a PImage of w and h from cood x,y of curContext
- var c = new PImage(w, h, PConstants.ARGB);
- c.fromImageData(p.toImageData(x, y, w, h));
- return c;
- }
- function get$5(x, y, w, h, img) {
- if (img.isRemote) { // Remote images cannot access imageData
- throw "Image is loaded remotely. Cannot get x,y,w,h.";
- }
- // PImage.get(x,y,w,h) was called, return x,y,w,h PImage of img
- // offset start point needs to be *4
- var c = new PImage(w, h, PConstants.ARGB), cData = c.imageData.data,
- imgWidth = img.width, imgHeight = img.height, imgData = img.imageData.data;
- // Don't need to copy pixels from the image outside ranges.
- var startRow = Math.max(0, -y), startColumn = Math.max(0, -x),
- stopRow = Math.min(h, imgHeight - y), stopColumn = Math.min(w, imgWidth - x);
- for (var i = startRow; i < stopRow; ++i) {
- var sourceOffset = ((y + i) * imgWidth + (x + startColumn)) * 4;
- var targetOffset = (i * w + startColumn) * 4;
- for (var j = startColumn; j < stopColumn; ++j) {
- cData[targetOffset++] = imgData[sourceOffset++];
- cData[targetOffset++] = imgData[sourceOffset++];
- cData[targetOffset++] = imgData[sourceOffset++];
- cData[targetOffset++] = imgData[sourceOffset++];
- }
- }
- c.__isDirty = true;
- return c;
- }
-
- // Gets a single pixel or block of pixels from the current Canvas Context or a PImage
- /**
- * Reads the color of any pixel or grabs a section of an image. If no parameters are specified, the entire
- * image is returned. Get the value of one pixel by specifying an x,y coordinate. Get a section of the display
- * window by specifying an additional width and height parameter. If the pixel requested is outside of the image
- * window, black is returned. The numbers returned are scaled according to the current color ranges, but only RGB
- * values are returned by this function. For example, even though you may have drawn a shape with colorMode(HSB),
- * the numbers returned will be in RGB.
- * Getting the color of a single pixel with get(x, y) is easy, but not as fast as grabbing the data directly
- * from pixels[]. The equivalent statement to "get(x, y)" using pixels[] is "pixels[y*width+x]". Processing
- * requires calling loadPixels() to load the display window data into the pixels[] array before getting the values.
- * This function ignores imageMode().
- *
- * @param {int} x x-coordinate of the pixel
- * @param {int} y y-coordinate of the pixel
- * @param {int} width width of pixel rectangle to get
- * @param {int} height height of pixel rectangle to get
- *
- * @returns {Color|PImage}
- *
- * @see set
- * @see pixels[]
- * @see imageMode
- */
- p.get = function(x, y, w, h, img) {
- // for 0 2 and 4 arguments use curContext, otherwise PImage.get was called
- if (img !== undefined) {
- return get$5(x, y, w, h, img);
- }
- if (h !== undefined) {
- return get$4(x, y, w, h);
- }
- if (w !== undefined) {
- return get$3(x, y, w);
- }
- if (y !== undefined) {
- return get$2(x, y);
- }
- if (x !== undefined) {
- // PImage.get() was called, return a new PImage
- return get$5(0, 0, x.width, x.height, x);
- }
-
- return get$4(0, 0, p.width, p.height);
- };
-
- /**
- * Creates and returns a new PGraphics object of the types P2D, P3D, and JAVA2D. Use this class if you need to draw
- * into an off-screen graphics buffer. It's not possible to use createGraphics() with OPENGL, because it doesn't
- * allow offscreen use. The DXF and PDF renderers require the filename parameter.
It's important to call
- * any drawing commands between beginDraw() and endDraw() statements. This is also true for any commands that affect
- * drawing, such as smooth() or colorMode().
Unlike the main drawing surface which is completely opaque,
- * surfaces created with createGraphics() can have transparency. This makes it possible to draw into a graphics and
- * maintain the alpha channel.
- *
- * @param {int} width width in pixels
- * @param {int} height height in pixels
- * @param {int} renderer Either P2D, P3D, JAVA2D, PDF, DXF
- * @param {String} filename the name of the file (not supported yet)
- */
- p.createGraphics = function(w, h, render) {
- var pg = new Processing();
- pg.size(w, h, render);
- return pg;
- };
-
- // pixels caching
- function resetContext() {
- if(isContextReplaced) {
- curContext = originalContext;
- isContextReplaced = false;
-
- p.updatePixels();
- }
- }
- function SetPixelContextWrapper() {
- function wrapFunction(newContext, name) {
- function wrapper() {
- resetContext();
- curContext[name].apply(curContext, arguments);
- }
- newContext[name] = wrapper;
- }
- function wrapProperty(newContext, name) {
- function getter() {
- resetContext();
- return curContext[name];
- }
- function setter(value) {
- resetContext();
- curContext[name] = value;
- }
- p.defineProperty(newContext, name, { get: getter, set: setter });
- }
- for(var n in curContext) {
- if(typeof curContext[n] === 'function') {
- wrapFunction(this, n);
- } else {
- wrapProperty(this, n);
- }
- }
- }
- function replaceContext() {
- if(isContextReplaced) {
- return;
- }
- p.loadPixels();
- if(proxyContext === null) {
- originalContext = curContext;
- proxyContext = new SetPixelContextWrapper();
- }
- isContextReplaced = true;
- curContext = proxyContext;
- setPixelsCached = 0;
- }
-
- function set$3(x, y, c) {
- if (x < p.width && x >= 0 && y >= 0 && y < p.height) {
- replaceContext();
- p.pixels.setPixel((0|x)+p.width*(0|y), c);
- if(++setPixelsCached > maxPixelsCached) {
- resetContext();
- }
- }
- }
- function set$4(x, y, obj, img) {
- if (img.isRemote) { // Remote images cannot access imageData
- throw "Image is loaded remotely. Cannot set x,y.";
- }
- var c = p.color.toArray(obj);
- var offset = y * img.width * 4 + (x*4);
- var data = img.imageData.data;
- data[offset] = c[0];
- data[offset+1] = c[1];
- data[offset+2] = c[2];
- data[offset+3] = c[3];
- }
-
- // Paints a pixel array into the canvas
- /**
- * Changes the color of any pixel or writes an image directly into the display window. The x and y parameters
- * specify the pixel to change and the color parameter specifies the color value. The color parameter is affected
- * by the current color mode (the default is RGB values from 0 to 255). When setting an image, the x and y
- * parameters define the coordinates for the upper-left corner of the image.
- * Setting the color of a single pixel with set(x, y) is easy, but not as fast as putting the data directly
- * into pixels[]. The equivalent statement to "set(x, y, #000000)" using pixels[] is "pixels[y*width+x] = #000000".
- * You must call loadPixels() to load the display window data into the pixels[] array before setting the values
- * and calling updatePixels() to update the window with any changes. This function ignores imageMode().
- *
- * @param {int} x x-coordinate of the pixel
- * @param {int} y y-coordinate of the pixel
- * @param {Color} obj any value of the color datatype
- * @param {PImage} img any valid variable of type PImage
- *
- * @see get
- * @see pixels[]
- * @see imageMode
- */
- p.set = function(x, y, obj, img) {
- var color, oldFill;
- if (arguments.length === 3) {
- // called p.set(), was it with a color or a img ?
- if (typeof obj === "number") {
- set$3(x, y, obj);
- } else if (obj instanceof PImage || obj.__isPImage) {
- p.image(obj, x, y);
- }
- } else if (arguments.length === 4) {
- // PImage.set(x,y,c) was called, set coordinate x,y color to c of img
- set$4(x, y, obj, img);
- }
- };
- p.imageData = {};
-
- // handle the sketch code for pixels[]
- // parser code converts pixels[] to getPixels() or setPixels(),
- // .length becomes getLength()
- /**
- * Array containing the values for all the pixels in the display window. These values are of the color datatype.
- * This array is the size of the display window. For example, if the image is 100x100 pixels, there will be 10000
- * values and if the window is 200x300 pixels, there will be 60000 values. The index value defines the position
- * of a value within the array. For example, the statment color b = pixels[230] will set the variable b to be
- * equal to the value at that location in the array.
- * Before accessing this array, the data must loaded with the loadPixels() function. After the array data has
- * been modified, the updatePixels() function must be run to update the changes.
- *
- * @param {int} index must not exceed the size of the array
- *
- * @see loadPixels
- * @see updatePixels
- * @see get
- * @see set
- * @see PImage
- */
- p.pixels = {
- getLength: function() { return p.imageData.data.length ? p.imageData.data.length/4 : 0; },
- getPixel: function(i) {
- var offset = i*4, data = p.imageData.data;
- return (data[offset+3] << 24) & 0xff000000 |
- (data[offset+0] << 16) & 0x00ff0000 |
- (data[offset+1] << 8) & 0x0000ff00 |
- data[offset+2] & 0x000000ff;
- },
- setPixel: function(i,c) {
- var offset = i*4, data = p.imageData.data;
- data[offset+0] = (c & 0x00ff0000) >>> 16; // RED_MASK
- data[offset+1] = (c & 0x0000ff00) >>> 8; // GREEN_MASK
- data[offset+2] = (c & 0x000000ff); // BLUE_MASK
- data[offset+3] = (c & 0xff000000) >>> 24; // ALPHA_MASK
- },
- toArray: function() {
- var arr = [], length = p.imageData.width * p.imageData.height, data = p.imageData.data;
- for (var i = 0, offset = 0; i < length; i++, offset += 4) {
- arr.push((data[offset+3] << 24) & 0xff000000 |
- (data[offset+0] << 16) & 0x00ff0000 |
- (data[offset+1] << 8) & 0x0000ff00 |
- data[offset+2] & 0x000000ff);
- }
- return arr;
- },
- set: function(arr) {
- for (var i = 0, aL = arr.length; i < aL; i++) {
- this.setPixel(i, arr[i]);
- }
- }
- };
-
- // Gets a 1-Dimensional pixel array from Canvas
- /**
- * Loads the pixel data for the display window into the pixels[] array. This function must always be called
- * before reading from or writing to pixels[].
- * Certain renderers may or may not seem to require loadPixels() or updatePixels(). However, the rule is that
- * any time you want to manipulate the pixels[] array, you must first call loadPixels(), and after changes
- * have been made, call updatePixels(). Even if the renderer may not seem to use this function in the current
- * Processing release, this will always be subject to change.
- *
- * @see pixels[]
- * @see updatePixels
- */
- p.loadPixels = function() {
- p.imageData = drawing.$ensureContext().getImageData(0, 0, p.width, p.height);
- };
-
- // Draws a 1-Dimensional pixel array to Canvas
- /**
- * Updates the display window with the data in the pixels[] array. Use in conjunction with loadPixels(). If
- * you're only reading pixels from the array, there's no need to call updatePixels() unless there are changes.
- * Certain renderers may or may not seem to require loadPixels() or updatePixels(). However, the rule is that
- * any time you want to manipulate the pixels[] array, you must first call loadPixels(), and after changes
- * have been made, call updatePixels(). Even if the renderer may not seem to use this function in the current
- * Processing release, this will always be subject to change.
- * Currently, none of the renderers use the additional parameters to updatePixels(), however this may be
- * implemented in the future.
- *
- * @see loadPixels
- * @see pixels[]
- */
- p.updatePixels = function() {
- if (p.imageData) {
- drawing.$ensureContext().putImageData(p.imageData, 0, 0);
- }
- };
-
- /**
- * Set various hints and hacks for the renderer. This is used to handle obscure rendering features that cannot be
- * implemented in a consistent manner across renderers. Many options will often graduate to standard features
- * instead of hints over time.
- * hint(ENABLE_OPENGL_4X_SMOOTH) - Enable 4x anti-aliasing for OpenGL. This can help force anti-aliasing if
- * it has not been enabled by the user. On some graphics cards, this can also be set by the graphics driver's
- * control panel, however not all cards make this available. This hint must be called immediately after the
- * size() command because it resets the renderer, obliterating any settings and anything drawn (and like size(),
- * re-running the code that came before it again).
- * hint(DISABLE_OPENGL_2X_SMOOTH) - In Processing 1.0, Processing always enables 2x smoothing when the OpenGL
- * renderer is used. This hint disables the default 2x smoothing and returns the smoothing behavior found in
- * earlier releases, where smooth() and noSmooth() could be used to enable and disable smoothing, though the
- * quality was inferior.
- * hint(ENABLE_NATIVE_FONTS) - Use the native version fonts when they are installed, rather than the bitmapped
- * version from a .vlw file. This is useful with the JAVA2D renderer setting, as it will improve font rendering
- * speed. This is not enabled by default, because it can be misleading while testing because the type will look
- * great on your machine (because you have the font installed) but lousy on others' machines if the identical
- * font is unavailable. This option can only be set per-sketch, and must be called before any use of textFont().
- * hint(DISABLE_DEPTH_TEST) - Disable the zbuffer, allowing you to draw on top of everything at will. When depth
- * testing is disabled, items will be drawn to the screen sequentially, like a painting. This hint is most often
- * used to draw in 3D, then draw in 2D on top of it (for instance, to draw GUI controls in 2D on top of a 3D
- * interface). Starting in release 0149, this will also clear the depth buffer. Restore the default with
- * hint(ENABLE_DEPTH_TEST), but note that with the depth buffer cleared, any 3D drawing that happens later in
- * draw() will ignore existing shapes on the screen.
- * hint(ENABLE_DEPTH_SORT) - Enable primitive z-sorting of triangles and lines in P3D and OPENGL. This can slow
- * performance considerably, and the algorithm is not yet perfect. Restore the default with hint(DISABLE_DEPTH_SORT).
- * hint(DISABLE_OPENGL_ERROR_REPORT) - Speeds up the OPENGL renderer setting by not checking for errors while
- * running. Undo with hint(ENABLE_OPENGL_ERROR_REPORT).
- * As of release 0149, unhint() has been removed in favor of adding additional ENABLE/DISABLE constants to reset
- * the default behavior. This prevents the double negatives, and also reinforces which hints can be enabled or disabled.
- *
- * @param {MODE} item constant: name of the hint to be enabled or disabled
- *
- * @see PGraphics
- * @see createGraphics
- * @see size
- */
- p.hint = function(which) {
- var curContext = drawing.$ensureContext();
- if (which === PConstants.DISABLE_DEPTH_TEST) {
- curContext.disable(curContext.DEPTH_TEST);
- curContext.depthMask(false);
- curContext.clear(curContext.DEPTH_BUFFER_BIT);
- }
- else if (which === PConstants.ENABLE_DEPTH_TEST) {
- curContext.enable(curContext.DEPTH_TEST);
- curContext.depthMask(true);
- }
- };
-
- /**
- * The background() function sets the color used for the background of the Processing window.
- * The default background is light gray. In the draw() function, the background color is used to clear the display window at the beginning of each frame.
- * An image can also be used as the background for a sketch, however its width and height must be the same size as the sketch window.
- * To resize an image 'b' to the size of the sketch window, use b.resize(width, height).
- * Images used as background will ignore the current tint() setting.
- * For the main drawing surface, the alpha value will be ignored. However,
- * alpha can be used on PGraphics objects from createGraphics(). This is
- * the only way to set all the pixels partially transparent, for instance.
- * If the 'gray' parameter is passed in the function sets the background to a grayscale value, based on the
- * current colorMode.
- *
- * Note that background() should be called before any transformations occur,
- * because some implementations may require the current transformation matrix
- * to be identity before drawing.
- *
- * @param {int|float} gray specifies a value between white and black
- * @param {int|float} value1 red or hue value (depending on the current color mode)
- * @param {int|float} value2 green or saturation value (depending on the current color mode)
- * @param {int|float} value3 blue or brightness value (depending on the current color mode)
- * @param {int|float} alpha opacity of the background
- * @param {Color} color any value of the color datatype
- * @param {int} hex color value in hexadecimal notation (i.e. #FFCC00 or 0xFFFFCC00)
- * @param {PImage} image an instance of a PImage to use as a background
- *
- * @see #stroke()
- * @see #fill()
- * @see #tint()
- * @see #colorMode()
- */
- var backgroundHelper = function(arg1, arg2, arg3, arg4) {
- var obj;
-
- if (arg1 instanceof PImage || arg1.__isPImage) {
- obj = arg1;
-
- if (!obj.loaded) {
- throw "Error using image in background(): PImage not loaded.";
- }
- if(obj.width !== p.width || obj.height !== p.height){
- throw "Background image must be the same dimensions as the canvas.";
- }
- } else {
- obj = p.color(arg1, arg2, arg3, arg4);
- }
-
- backgroundObj = obj;
- };
-
- Drawing2D.prototype.background = function(arg1, arg2, arg3, arg4) {
- if (arg1 !== undef) {
- backgroundHelper(arg1, arg2, arg3, arg4);
- }
-
- if (backgroundObj instanceof PImage || backgroundObj.__isPImage) {
- saveContext();
- curContext.setTransform(1, 0, 0, 1, 0, 0);
- p.image(backgroundObj, 0, 0);
- restoreContext();
- } else {
- saveContext();
- curContext.setTransform(1, 0, 0, 1, 0, 0);
-
- // If the background is transparent
- if (p.alpha(backgroundObj) !== colorModeA) {
- curContext.clearRect(0,0, p.width, p.height);
- }
- curContext.fillStyle = p.color.toString(backgroundObj);
- curContext.fillRect(0, 0, p.width, p.height);
- isFillDirty = true;
- restoreContext();
- }
- };
-
- Drawing3D.prototype.background = function(arg1, arg2, arg3, arg4) {
- if (arguments.length > 0) {
- backgroundHelper(arg1, arg2, arg3, arg4);
- }
-
- var c = p.color.toGLArray(backgroundObj);
- curContext.clearColor(c[0], c[1], c[2], c[3]);
- curContext.clear(curContext.COLOR_BUFFER_BIT | curContext.DEPTH_BUFFER_BIT);
-
- // An image as a background in 3D is not implemented yet
- };
-
- // Draws an image to the Canvas
- /**
- * Displays images to the screen. The images must be in the sketch's "data" directory to load correctly. Select "Add
- * file..." from the "Sketch" menu to add the image. Processing currently works with GIF, JPEG, and Targa images. The
- * color of an image may be modified with the tint() function and if a GIF has transparency, it will maintain its
- * transparency. The img parameter specifies the image to display and the x and y parameters define the location of
- * the image from its upper-left corner. The image is displayed at its original size unless the width and height
- * parameters specify a different size. The imageMode() function changes the way the parameters work. A call to
- * imageMode(CORNERS) will change the width and height parameters to define the x and y values of the opposite
- * corner of the image.
- *
- * @param {PImage} img the image to display
- * @param {int|float} x x-coordinate of the image
- * @param {int|float} y y-coordinate of the image
- * @param {int|float} width width to display the image
- * @param {int|float} height height to display the image
- *
- * @see loadImage
- * @see PImage
- * @see imageMode
- * @see tint
- * @see background
- * @see alpha
- */
- Drawing2D.prototype.image = function(img, x, y, w, h) {
- // Fix fractional positions
- x = Math.round(x);
- y = Math.round(y);
-
- if (img.width > 0) {
- var wid = w || img.width;
- var hgt = h || img.height;
-
- var bounds = imageModeConvert(x || 0, y || 0, w || img.width, h || img.height, arguments.length < 4);
- var fastImage = !!img.sourceImg && curTint === null;
- if (fastImage) {
- var htmlElement = img.sourceImg;
- if (img.__isDirty) {
- img.updatePixels();
- }
- // Using HTML element's width and height in case if the image was resized.
- curContext.drawImage(htmlElement, 0, 0,
- htmlElement.width, htmlElement.height, bounds.x, bounds.y, bounds.w, bounds.h);
- } else {
- var obj = img.toImageData();
-
- // Tint the image
- if (curTint !== null) {
- curTint(obj);
- img.__isDirty = true;
- }
-
- curContext.drawImage(getCanvasData(obj).canvas, 0, 0,
- img.width, img.height, bounds.x, bounds.y, bounds.w, bounds.h);
- }
- }
- };
-
- Drawing3D.prototype.image = function(img, x, y, w, h) {
- if (img.width > 0) {
- // Fix fractional positions
- x = Math.round(x);
- y = Math.round(y);
- w = w || img.width;
- h = h || img.height;
-
- p.beginShape(p.QUADS);
- p.texture(img);
- p.vertex(x, y, 0, 0, 0);
- p.vertex(x, y+h, 0, 0, h);
- p.vertex(x+w, y+h, 0, w, h);
- p.vertex(x+w, y, 0, w, 0);
- p.endShape();
- }
- };
-
- /**
- * The tint() function sets the fill value for displaying images. Images can be tinted to
- * specified colors or made transparent by setting the alpha.
- *
To make an image transparent, but not change it's color,
- * use white as the tint color and specify an alpha value. For instance,
- * tint(255, 128) will make an image 50% transparent (unless
- * colorMode() has been used).
- *
- *
When using hexadecimal notation to specify a color, use "#" or
- * "0x" before the values (e.g. #CCFFAA, 0xFFCCFFAA). The # syntax uses six
- * digits to specify a color (the way colors are specified in HTML and CSS).
- * When using the hexadecimal notation starting with "0x", the hexadecimal
- * value must be specified with eight characters; the first two characters
- * define the alpha component and the remainder the red, green, and blue
- * components.
- *
The value for the parameter "gray" must be less than or equal
- * to the current maximum value as specified by colorMode().
- * The default maximum value is 255.
- *
The tint() method is also used to control the coloring of
- * textures in 3D.
- *
- * @param {int|float} gray any valid number
- * @param {int|float} alpha opacity of the image
- * @param {int|float} value1 red or hue value
- * @param {int|float} value2 green or saturation value
- * @param {int|float} value3 blue or brightness value
- * @param {int|float} color any value of the color datatype
- * @param {int} hex color value in hexadecimal notation (i.e. #FFCC00 or 0xFFFFCC00)
- *
- * @see #noTint()
- * @see #image()
- */
- p.tint = function(a1, a2, a3, a4) {
- var tintColor = p.color(a1, a2, a3, a4);
- var r = p.red(tintColor) / colorModeX;
- var g = p.green(tintColor) / colorModeY;
- var b = p.blue(tintColor) / colorModeZ;
- var a = p.alpha(tintColor) / colorModeA;
- curTint = function(obj) {
- var data = obj.data,
- length = 4 * obj.width * obj.height;
- for (var i = 0; i < length;) {
- data[i++] *= r;
- data[i++] *= g;
- data[i++] *= b;
- data[i++] *= a;
- }
- };
- // for overriding the color buffer when 3d rendering
- curTint3d = function(data){
- for (var i = 0; i < data.length;) {
- data[i++] = r;
- data[i++] = g;
- data[i++] = b;
- data[i++] = a;
- }
- };
- };
-
- /**
- * The noTint() function removes the current fill value for displaying images and reverts to displaying images with their original hues.
- *
- * @see #tint()
- * @see #image()
- */
- p.noTint = function() {
- curTint = null;
- curTint3d = null;
- };
-
- /**
- * Copies a region of pixels from the display window to another area of the display window and copies a region of pixels from an
- * image used as the srcImg parameter into the display window. If the source and destination regions aren't the same size, it will
- * automatically resize the source pixels to fit the specified target region. No alpha information is used in the process, however
- * if the source image has an alpha channel set, it will be copied as well. This function ignores imageMode().
- *
- * @param {int} x X coordinate of the source's upper left corner
- * @param {int} y Y coordinate of the source's upper left corner
- * @param {int} width source image width
- * @param {int} height source image height
- * @param {int} dx X coordinate of the destination's upper left corner
- * @param {int} dy Y coordinate of the destination's upper left corner
- * @param {int} dwidth destination image width
- * @param {int} dheight destination image height
- * @param {PImage} srcImg image variable referring to the source image
- *
- * @see blend
- * @see get
- */
- p.copy = function(src, sx, sy, sw, sh, dx, dy, dw, dh) {
- if (dh === undef) {
- // shift everything, and introduce p
- dh = dw;
- dw = dy;
- dy = dx;
- dx = sh;
- sh = sw;
- sw = sy;
- sy = sx;
- sx = src;
- src = p;
- }
- p.blend(src, sx, sy, sw, sh, dx, dy, dw, dh, PConstants.REPLACE);
- };
-
- /**
- * Blends a region of pixels from one image into another (or in itself again) with full alpha channel support. There
- * is a choice of the following modes to blend the source pixels (A) with the ones of pixels in the destination image (B):
- * BLEND - linear interpolation of colours: C = A*factor + B
- * ADD - additive blending with white clip: C = min(A*factor + B, 255)
- * SUBTRACT - subtractive blending with black clip: C = max(B - A*factor, 0)
- * DARKEST - only the darkest colour succeeds: C = min(A*factor, B)
- * LIGHTEST - only the lightest colour succeeds: C = max(A*factor, B)
- * DIFFERENCE - subtract colors from underlying image.
- * EXCLUSION - similar to DIFFERENCE, but less extreme.
- * MULTIPLY - Multiply the colors, result will always be darker.
- * SCREEN - Opposite multiply, uses inverse values of the colors.
- * OVERLAY - A mix of MULTIPLY and SCREEN. Multiplies dark values, and screens light values.
- * HARD_LIGHT - SCREEN when greater than 50% gray, MULTIPLY when lower.
- * SOFT_LIGHT - Mix of DARKEST and LIGHTEST. Works like OVERLAY, but not as harsh.
- * DODGE - Lightens light tones and increases contrast, ignores darks. Called "Color Dodge" in Illustrator and Photoshop.
- * BURN - Darker areas are applied, increasing contrast, ignores lights. Called "Color Burn" in Illustrator and Photoshop.
- * All modes use the alpha information (highest byte) of source image pixels as the blending factor. If the source and
- * destination regions are different sizes, the image will be automatically resized to match the destination size. If the
- * srcImg parameter is not used, the display window is used as the source image. This function ignores imageMode().
- *
- * @param {int} x X coordinate of the source's upper left corner
- * @param {int} y Y coordinate of the source's upper left corner
- * @param {int} width source image width
- * @param {int} height source image height
- * @param {int} dx X coordinate of the destination's upper left corner
- * @param {int} dy Y coordinate of the destination's upper left corner
- * @param {int} dwidth destination image width
- * @param {int} dheight destination image height
- * @param {PImage} srcImg image variable referring to the source image
- * @param {PImage} MODE Either BLEND, ADD, SUBTRACT, LIGHTEST, DARKEST, DIFFERENCE, EXCLUSION, MULTIPLY, SCREEN,
- * OVERLAY, HARD_LIGHT, SOFT_LIGHT, DODGE, BURN
- * @see filter
- */
- p.blend = function(src, sx, sy, sw, sh, dx, dy, dw, dh, mode, pimgdest) {
- if (src.isRemote) {
- throw "Image is loaded remotely. Cannot blend image.";
- }
-
- if (mode === undef) {
- // shift everything, and introduce p
- mode = dh;
- dh = dw;
- dw = dy;
- dy = dx;
- dx = sh;
- sh = sw;
- sw = sy;
- sy = sx;
- sx = src;
- src = p;
- }
-
- var sx2 = sx + sw,
- sy2 = sy + sh,
- dx2 = dx + dw,
- dy2 = dy + dh,
- dest = pimgdest || p;
-
- // check if pimgdest is there and pixels, if so this was a call from pimg.blend
- if (pimgdest === undef || mode === undef) {
- p.loadPixels();
- }
-
- src.loadPixels();
-
- if (src === p && p.intersect(sx, sy, sx2, sy2, dx, dy, dx2, dy2)) {
- p.blit_resize(p.get(sx, sy, sx2 - sx, sy2 - sy), 0, 0, sx2 - sx - 1, sy2 - sy - 1,
- dest.imageData.data, dest.width, dest.height, dx, dy, dx2, dy2, mode);
- } else {
- p.blit_resize(src, sx, sy, sx2, sy2, dest.imageData.data, dest.width, dest.height, dx, dy, dx2, dy2, mode);
- }
-
- if (pimgdest === undef) {
- p.updatePixels();
- }
- };
-
- // helper function for filter()
- var buildBlurKernel = function(r) {
- var radius = p.floor(r * 3.5), i, radiusi;
- radius = (radius < 1) ? 1 : ((radius < 248) ? radius : 248);
- if (p.shared.blurRadius !== radius) {
- p.shared.blurRadius = radius;
- p.shared.blurKernelSize = 1 + (p.shared.blurRadius<<1);
- p.shared.blurKernel = new Float32Array(p.shared.blurKernelSize);
- var sharedBlurKernal = p.shared.blurKernel;
- var sharedBlurKernelSize = p.shared.blurKernelSize;
- var sharedBlurRadius = p.shared.blurRadius;
- // init blurKernel
- for (i = 0; i < sharedBlurKernelSize; i++) {
- sharedBlurKernal[i] = 0;
- }
- var radiusiSquared = (radius - 1) * (radius - 1);
- for (i = 1; i < radius; i++) {
- sharedBlurKernal[radius + i] = sharedBlurKernal[radiusi] = radiusiSquared;
- }
- sharedBlurKernal[radius] = radius * radius;
- }
- };
-
- var blurARGB = function(r, aImg) {
- var sum, cr, cg, cb, ca, c, m;
- var read, ri, ym, ymi, bk0;
- var wh = aImg.pixels.getLength();
- var r2 = new Float32Array(wh);
- var g2 = new Float32Array(wh);
- var b2 = new Float32Array(wh);
- var a2 = new Float32Array(wh);
- var yi = 0;
- var x, y, i, offset;
-
- buildBlurKernel(r);
-
- var aImgHeight = aImg.height;
- var aImgWidth = aImg.width;
- var sharedBlurKernelSize = p.shared.blurKernelSize;
- var sharedBlurRadius = p.shared.blurRadius;
- var sharedBlurKernal = p.shared.blurKernel;
- var pix = aImg.imageData.data;
-
- for (y = 0; y < aImgHeight; y++) {
- for (x = 0; x < aImgWidth; x++) {
- cb = cg = cr = ca = sum = 0;
- read = x - sharedBlurRadius;
- if (read<0) {
- bk0 = -read;
- read = 0;
- } else {
- if (read >= aImgWidth) {
- break;
- }
- bk0=0;
- }
- for (i = bk0; i < sharedBlurKernelSize; i++) {
- if (read >= aImgWidth) {
- break;
- }
- offset = (read + yi) *4;
- m = sharedBlurKernal[i];
- ca += m * pix[offset + 3];
- cr += m * pix[offset];
- cg += m * pix[offset + 1];
- cb += m * pix[offset + 2];
- sum += m;
- read++;
- }
- ri = yi + x;
- a2[ri] = ca / sum;
- r2[ri] = cr / sum;
- g2[ri] = cg / sum;
- b2[ri] = cb / sum;
- }
- yi += aImgWidth;
- }
-
- yi = 0;
- ym = -sharedBlurRadius;
- ymi = ym*aImgWidth;
-
- for (y = 0; y < aImgHeight; y++) {
- for (x = 0; x < aImgWidth; x++) {
- cb = cg = cr = ca = sum = 0;
- if (ym<0) {
- bk0 = ri = -ym;
- read = x;
- } else {
- if (ym >= aImgHeight) {
- break;
- }
- bk0 = 0;
- ri = ym;
- read = x + ymi;
- }
- for (i = bk0; i < sharedBlurKernelSize; i++) {
- if (ri >= aImgHeight) {
- break;
- }
- m = sharedBlurKernal[i];
- ca += m * a2[read];
- cr += m * r2[read];
- cg += m * g2[read];
- cb += m * b2[read];
- sum += m;
- ri++;
- read += aImgWidth;
- }
- offset = (x + yi) *4;
- pix[offset] = cr / sum;
- pix[offset + 1] = cg / sum;
- pix[offset + 2] = cb / sum;
- pix[offset + 3] = ca / sum;
- }
- yi += aImgWidth;
- ymi += aImgWidth;
- ym++;
- }
- };
-
- // helper funtion for ERODE and DILATE modes of filter()
- var dilate = function(isInverted, aImg) {
- var currIdx = 0;
- var maxIdx = aImg.pixels.getLength();
- var out = new Int32Array(maxIdx);
- var currRowIdx, maxRowIdx, colOrig, colOut, currLum;
- var idxRight, idxLeft, idxUp, idxDown,
- colRight, colLeft, colUp, colDown,
- lumRight, lumLeft, lumUp, lumDown;
-
- if (!isInverted) {
- // erosion (grow light areas)
- while (currIdx= maxRowIdx) {
- idxRight = currIdx;
- }
- if (idxUp < 0) {
- idxUp = 0;
- }
- if (idxDown >= maxIdx) {
- idxDown = currIdx;
- }
- colUp = aImg.pixels.getPixel(idxUp);
- colLeft = aImg.pixels.getPixel(idxLeft);
- colDown = aImg.pixels.getPixel(idxDown);
- colRight = aImg.pixels.getPixel(idxRight);
-
- // compute luminance
- currLum = 77*(colOrig>>16&0xff) + 151*(colOrig>>8&0xff) + 28*(colOrig&0xff);
- lumLeft = 77*(colLeft>>16&0xff) + 151*(colLeft>>8&0xff) + 28*(colLeft&0xff);
- lumRight = 77*(colRight>>16&0xff) + 151*(colRight>>8&0xff) + 28*(colRight&0xff);
- lumUp = 77*(colUp>>16&0xff) + 151*(colUp>>8&0xff) + 28*(colUp&0xff);
- lumDown = 77*(colDown>>16&0xff) + 151*(colDown>>8&0xff) + 28*(colDown&0xff);
-
- if (lumLeft > currLum) {
- colOut = colLeft;
- currLum = lumLeft;
- }
- if (lumRight > currLum) {
- colOut = colRight;
- currLum = lumRight;
- }
- if (lumUp > currLum) {
- colOut = colUp;
- currLum = lumUp;
- }
- if (lumDown > currLum) {
- colOut = colDown;
- currLum = lumDown;
- }
- out[currIdx++] = colOut;
- }
- }
- } else {
- // dilate (grow dark areas)
- while (currIdx < maxIdx) {
- currRowIdx = currIdx;
- maxRowIdx = currIdx + aImg.width;
- while (currIdx < maxRowIdx) {
- colOrig = colOut = aImg.pixels.getPixel(currIdx);
- idxLeft = currIdx - 1;
- idxRight = currIdx + 1;
- idxUp = currIdx - aImg.width;
- idxDown = currIdx + aImg.width;
- if (idxLeft < currRowIdx) {
- idxLeft = currIdx;
- }
- if (idxRight >= maxRowIdx) {
- idxRight = currIdx;
- }
- if (idxUp < 0) {
- idxUp = 0;
- }
- if (idxDown >= maxIdx) {
- idxDown = currIdx;
- }
- colUp = aImg.pixels.getPixel(idxUp);
- colLeft = aImg.pixels.getPixel(idxLeft);
- colDown = aImg.pixels.getPixel(idxDown);
- colRight = aImg.pixels.getPixel(idxRight);
-
- // compute luminance
- currLum = 77*(colOrig>>16&0xff) + 151*(colOrig>>8&0xff) + 28*(colOrig&0xff);
- lumLeft = 77*(colLeft>>16&0xff) + 151*(colLeft>>8&0xff) + 28*(colLeft&0xff);
- lumRight = 77*(colRight>>16&0xff) + 151*(colRight>>8&0xff) + 28*(colRight&0xff);
- lumUp = 77*(colUp>>16&0xff) + 151*(colUp>>8&0xff) + 28*(colUp&0xff);
- lumDown = 77*(colDown>>16&0xff) + 151*(colDown>>8&0xff) + 28*(colDown&0xff);
-
- if (lumLeft < currLum) {
- colOut = colLeft;
- currLum = lumLeft;
- }
- if (lumRight < currLum) {
- colOut = colRight;
- currLum = lumRight;
- }
- if (lumUp < currLum) {
- colOut = colUp;
- currLum = lumUp;
- }
- if (lumDown < currLum) {
- colOut = colDown;
- currLum = lumDown;
- }
- out[currIdx++]=colOut;
- }
- }
- }
- aImg.pixels.set(out);
- //p.arraycopy(out,0,pixels,0,maxIdx);
- };
-
- /**
- * Filters the display window as defined by one of the following modes:
- * THRESHOLD - converts the image to black and white pixels depending if they are above or below the threshold
- * defined by the level parameter. The level must be between 0.0 (black) and 1.0(white). If no level is specified, 0.5 is used.
- * GRAY - converts any colors in the image to grayscale equivalents
- * INVERT - sets each pixel to its inverse value
- * POSTERIZE - limits each channel of the image to the number of colors specified as the level parameter
- * BLUR - executes a Guassian blur with the level parameter specifying the extent of the blurring. If no level parameter is
- * used, the blur is equivalent to Guassian blur of radius 1.
- * OPAQUE - sets the alpha channel to entirely opaque.
- * ERODE - reduces the light areas with the amount defined by the level parameter.
- * DILATE - increases the light areas with the amount defined by the level parameter.
- *
- * @param {MODE} MODE Either THRESHOLD, GRAY, INVERT, POSTERIZE, BLUR, OPAQUE, ERODE, or DILATE
- * @param {int|float} level defines the quality of the filter
- *
- * @see blend
- */
- p.filter = function(kind, param, aImg){
- var img, col, lum, i;
-
- if (arguments.length === 3) {
- aImg.loadPixels();
- img = aImg;
- } else {
- p.loadPixels();
- img = p;
- }
-
- if (param === undef) {
- param = null;
- }
- if (img.isRemote) { // Remote images cannot access imageData
- throw "Image is loaded remotely. Cannot filter image.";
- }
- // begin filter process
- var imglen = img.pixels.getLength();
- switch (kind) {
- case PConstants.BLUR:
- var radius = param || 1; // if no param specified, use 1 (default for p5)
- blurARGB(radius, img);
- break;
-
- case PConstants.GRAY:
- if (img.format === PConstants.ALPHA) { //trouble
- // for an alpha image, convert it to an opaque grayscale
- for (i = 0; i < imglen; i++) {
- col = 255 - img.pixels.getPixel(i);
- img.pixels.setPixel(i,(0xff000000 | (col << 16) | (col << 8) | col));
- }
- img.format = PConstants.RGB; //trouble
- } else {
- for (i = 0; i < imglen; i++) {
- col = img.pixels.getPixel(i);
- lum = (77*(col>>16&0xff) + 151*(col>>8&0xff) + 28*(col&0xff))>>8;
- img.pixels.setPixel(i,((col & PConstants.ALPHA_MASK) | lum<<16 | lum<<8 | lum));
- }
- }
- break;
-
- case PConstants.INVERT:
- for (i = 0; i < imglen; i++) {
- img.pixels.setPixel(i, (img.pixels.getPixel(i) ^ 0xffffff));
- }
- break;
-
- case PConstants.POSTERIZE:
- if (param === null) {
- throw "Use filter(POSTERIZE, int levels) instead of filter(POSTERIZE)";
- }
- var levels = p.floor(param);
- if ((levels < 2) || (levels > 255)) {
- throw "Levels must be between 2 and 255 for filter(POSTERIZE, levels)";
- }
- var levels1 = levels - 1;
- for (i = 0; i < imglen; i++) {
- var rlevel = (img.pixels.getPixel(i) >> 16) & 0xff;
- var glevel = (img.pixels.getPixel(i) >> 8) & 0xff;
- var blevel = img.pixels.getPixel(i) & 0xff;
- rlevel = (((rlevel * levels) >> 8) * 255) / levels1;
- glevel = (((glevel * levels) >> 8) * 255) / levels1;
- blevel = (((blevel * levels) >> 8) * 255) / levels1;
- img.pixels.setPixel(i, ((0xff000000 & img.pixels.getPixel(i)) | (rlevel << 16) | (glevel << 8) | blevel));
- }
- break;
-
- case PConstants.OPAQUE:
- for (i = 0; i < imglen; i++) {
- img.pixels.setPixel(i, (img.pixels.getPixel(i) | 0xff000000));
- }
- img.format = PConstants.RGB; //trouble
- break;
-
- case PConstants.THRESHOLD:
- if (param === null) {
- param = 0.5;
- }
- if ((param < 0) || (param > 1)) {
- throw "Level must be between 0 and 1 for filter(THRESHOLD, level)";
- }
- var thresh = p.floor(param * 255);
- for (i = 0; i < imglen; i++) {
- var max = p.max((img.pixels.getPixel(i) & PConstants.RED_MASK) >> 16, p.max((img.pixels.getPixel(i) & PConstants.GREEN_MASK) >> 8, (img.pixels.getPixel(i) & PConstants.BLUE_MASK)));
- img.pixels.setPixel(i, ((img.pixels.getPixel(i) & PConstants.ALPHA_MASK) | ((max < thresh) ? 0x000000 : 0xffffff)));
- }
- break;
-
- case PConstants.ERODE:
- dilate(true, img);
- break;
-
- case PConstants.DILATE:
- dilate(false, img);
- break;
- }
- img.updatePixels();
- };
-
-
- // shared variables for blit_resize(), filter_new_scanline(), filter_bilinear(), filter()
- // change this in the future to not be exposed to p
- p.shared = {
- fracU: 0,
- ifU: 0,
- fracV: 0,
- ifV: 0,
- u1: 0,
- u2: 0,
- v1: 0,
- v2: 0,
- sX: 0,
- sY: 0,
- iw: 0,
- iw1: 0,
- ih1: 0,
- ul: 0,
- ll: 0,
- ur: 0,
- lr: 0,
- cUL: 0,
- cLL: 0,
- cUR: 0,
- cLR: 0,
- srcXOffset: 0,
- srcYOffset: 0,
- r: 0,
- g: 0,
- b: 0,
- a: 0,
- srcBuffer: null,
- blurRadius: 0,
- blurKernelSize: 0,
- blurKernel: null
- };
-
- p.intersect = function(sx1, sy1, sx2, sy2, dx1, dy1, dx2, dy2) {
- var sw = sx2 - sx1 + 1;
- var sh = sy2 - sy1 + 1;
- var dw = dx2 - dx1 + 1;
- var dh = dy2 - dy1 + 1;
- if (dx1 < sx1) {
- dw += dx1 - sx1;
- if (dw > sw) {
- dw = sw;
- }
- } else {
- var w = sw + sx1 - dx1;
- if (dw > w) {
- dw = w;
- }
- }
- if (dy1 < sy1) {
- dh += dy1 - sy1;
- if (dh > sh) {
- dh = sh;
- }
- } else {
- var h = sh + sy1 - dy1;
- if (dh > h) {
- dh = h;
- }
- }
- return ! (dw <= 0 || dh <= 0);
- };
-
- var blendFuncs = {};
- blendFuncs[PConstants.BLEND] = p.modes.blend;
- blendFuncs[PConstants.ADD] = p.modes.add;
- blendFuncs[PConstants.SUBTRACT] = p.modes.subtract;
- blendFuncs[PConstants.LIGHTEST] = p.modes.lightest;
- blendFuncs[PConstants.DARKEST] = p.modes.darkest;
- blendFuncs[PConstants.REPLACE] = p.modes.replace;
- blendFuncs[PConstants.DIFFERENCE] = p.modes.difference;
- blendFuncs[PConstants.EXCLUSION] = p.modes.exclusion;
- blendFuncs[PConstants.MULTIPLY] = p.modes.multiply;
- blendFuncs[PConstants.SCREEN] = p.modes.screen;
- blendFuncs[PConstants.OVERLAY] = p.modes.overlay;
- blendFuncs[PConstants.HARD_LIGHT] = p.modes.hard_light;
- blendFuncs[PConstants.SOFT_LIGHT] = p.modes.soft_light;
- blendFuncs[PConstants.DODGE] = p.modes.dodge;
- blendFuncs[PConstants.BURN] = p.modes.burn;
-
- p.blit_resize = function(img, srcX1, srcY1, srcX2, srcY2, destPixels,
- screenW, screenH, destX1, destY1, destX2, destY2, mode) {
- var x, y;
- if (srcX1 < 0) {
- srcX1 = 0;
- }
- if (srcY1 < 0) {
- srcY1 = 0;
- }
- if (srcX2 >= img.width) {
- srcX2 = img.width - 1;
- }
- if (srcY2 >= img.height) {
- srcY2 = img.height - 1;
- }
- var srcW = srcX2 - srcX1;
- var srcH = srcY2 - srcY1;
- var destW = destX2 - destX1;
- var destH = destY2 - destY1;
-
- if (destW <= 0 || destH <= 0 || srcW <= 0 || srcH <= 0 || destX1 >= screenW ||
- destY1 >= screenH || srcX1 >= img.width || srcY1 >= img.height) {
- return;
- }
-
- var dx = Math.floor(srcW / destW * PConstants.PRECISIONF);
- var dy = Math.floor(srcH / destH * PConstants.PRECISIONF);
-
- var pshared = p.shared;
-
- pshared.srcXOffset = Math.floor(destX1 < 0 ? -destX1 * dx : srcX1 * PConstants.PRECISIONF);
- pshared.srcYOffset = Math.floor(destY1 < 0 ? -destY1 * dy : srcY1 * PConstants.PRECISIONF);
- if (destX1 < 0) {
- destW += destX1;
- destX1 = 0;
- }
- if (destY1 < 0) {
- destH += destY1;
- destY1 = 0;
- }
- destW = Math.min(destW, screenW - destX1);
- destH = Math.min(destH, screenH - destY1);
-
- var destOffset = destY1 * screenW + destX1;
- var destColor;
-
- pshared.srcBuffer = img.imageData.data;
- pshared.iw = img.width;
- pshared.iw1 = img.width - 1;
- pshared.ih1 = img.height - 1;
-
- // cache for speed
- var filterBilinear = p.filter_bilinear,
- filterNewScanline = p.filter_new_scanline,
- blendFunc = blendFuncs[mode],
- blendedColor,
- idx,
- cULoffset,
- cURoffset,
- cLLoffset,
- cLRoffset,
- ALPHA_MASK = PConstants.ALPHA_MASK,
- RED_MASK = PConstants.RED_MASK,
- GREEN_MASK = PConstants.GREEN_MASK,
- BLUE_MASK = PConstants.BLUE_MASK,
- PREC_MAXVAL = PConstants.PREC_MAXVAL,
- PRECISIONB = PConstants.PRECISIONB,
- PREC_RED_SHIFT = PConstants.PREC_RED_SHIFT,
- PREC_ALPHA_SHIFT = PConstants.PREC_ALPHA_SHIFT,
- srcBuffer = pshared.srcBuffer,
- min = Math.min;
-
- for (y = 0; y < destH; y++) {
-
- pshared.sX = pshared.srcXOffset;
- pshared.fracV = pshared.srcYOffset & PREC_MAXVAL;
- pshared.ifV = PREC_MAXVAL - pshared.fracV;
- pshared.v1 = (pshared.srcYOffset >> PRECISIONB) * pshared.iw;
- pshared.v2 = min((pshared.srcYOffset >> PRECISIONB) + 1, pshared.ih1) * pshared.iw;
-
- for (x = 0; x < destW; x++) {
- idx = (destOffset + x) * 4;
-
- destColor = (destPixels[idx + 3] << 24) &
- ALPHA_MASK | (destPixels[idx] << 16) &
- RED_MASK | (destPixels[idx + 1] << 8) &
- GREEN_MASK | destPixels[idx + 2] & BLUE_MASK;
-
- pshared.fracU = pshared.sX & PREC_MAXVAL;
- pshared.ifU = PREC_MAXVAL - pshared.fracU;
- pshared.ul = (pshared.ifU * pshared.ifV) >> PRECISIONB;
- pshared.ll = (pshared.ifU * pshared.fracV) >> PRECISIONB;
- pshared.ur = (pshared.fracU * pshared.ifV) >> PRECISIONB;
- pshared.lr = (pshared.fracU * pshared.fracV) >> PRECISIONB;
- pshared.u1 = (pshared.sX >> PRECISIONB);
- pshared.u2 = min(pshared.u1 + 1, pshared.iw1);
-
- cULoffset = (pshared.v1 + pshared.u1) * 4;
- cURoffset = (pshared.v1 + pshared.u2) * 4;
- cLLoffset = (pshared.v2 + pshared.u1) * 4;
- cLRoffset = (pshared.v2 + pshared.u2) * 4;
-
- pshared.cUL = (srcBuffer[cULoffset + 3] << 24) &
- ALPHA_MASK | (srcBuffer[cULoffset] << 16) &
- RED_MASK | (srcBuffer[cULoffset + 1] << 8) &
- GREEN_MASK | srcBuffer[cULoffset + 2] & BLUE_MASK;
-
- pshared.cUR = (srcBuffer[cURoffset + 3] << 24) &
- ALPHA_MASK | (srcBuffer[cURoffset] << 16) &
- RED_MASK | (srcBuffer[cURoffset + 1] << 8) &
- GREEN_MASK | srcBuffer[cURoffset + 2] & BLUE_MASK;
-
- pshared.cLL = (srcBuffer[cLLoffset + 3] << 24) &
- ALPHA_MASK | (srcBuffer[cLLoffset] << 16) &
- RED_MASK | (srcBuffer[cLLoffset + 1] << 8) &
- GREEN_MASK | srcBuffer[cLLoffset + 2] & BLUE_MASK;
-
- pshared.cLR = (srcBuffer[cLRoffset + 3] << 24) &
- ALPHA_MASK | (srcBuffer[cLRoffset] << 16) &
- RED_MASK | (srcBuffer[cLRoffset + 1] << 8) &
- GREEN_MASK | srcBuffer[cLRoffset + 2] & BLUE_MASK;
-
- pshared.r = ((pshared.ul * ((pshared.cUL & RED_MASK) >> 16) +
- pshared.ll * ((pshared.cLL & RED_MASK) >> 16) +
- pshared.ur * ((pshared.cUR & RED_MASK) >> 16) +
- pshared.lr * ((pshared.cLR & RED_MASK) >> 16)) << PREC_RED_SHIFT) & RED_MASK;
- pshared.g = ((pshared.ul * (pshared.cUL & GREEN_MASK) +
- pshared.ll * (pshared.cLL & GREEN_MASK) +
- pshared.ur * (pshared.cUR & GREEN_MASK) +
- pshared.lr * (pshared.cLR & GREEN_MASK)) >>> PRECISIONB) & GREEN_MASK;
- pshared.b = (pshared.ul * (pshared.cUL & BLUE_MASK) +
- pshared.ll * (pshared.cLL & BLUE_MASK) +
- pshared.ur * (pshared.cUR & BLUE_MASK) +
- pshared.lr * (pshared.cLR & BLUE_MASK)) >>> PRECISIONB;
- pshared.a = ((pshared.ul * ((pshared.cUL & ALPHA_MASK) >>> 24) +
- pshared.ll * ((pshared.cLL & ALPHA_MASK) >>> 24) +
- pshared.ur * ((pshared.cUR & ALPHA_MASK) >>> 24) +
- pshared.lr * ((pshared.cLR & ALPHA_MASK) >>> 24)) << PREC_ALPHA_SHIFT) & ALPHA_MASK;
-
- blendedColor = blendFunc(destColor, (pshared.a | pshared.r | pshared.g | pshared.b));
-
- destPixels[idx] = (blendedColor & RED_MASK) >>> 16;
- destPixels[idx + 1] = (blendedColor & GREEN_MASK) >>> 8;
- destPixels[idx + 2] = (blendedColor & BLUE_MASK);
- destPixels[idx + 3] = (blendedColor & ALPHA_MASK) >>> 24;
-
- pshared.sX += dx;
- }
- destOffset += screenW;
- pshared.srcYOffset += dy;
- }
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // Font handling
- ////////////////////////////////////////////////////////////////////////////
-
- /**
- * loadFont() Loads a font into a variable of type PFont.
- *
- * @param {String} name filename of the font to load
- * @param {int|float} size option font size (used internally)
- *
- * @returns {PFont} new PFont object
- *
- * @see #PFont
- * @see #textFont
- * @see #text
- * @see #createFont
- */
- p.loadFont = function(name, size) {
- if (name === undef) {
- throw("font name required in loadFont.");
- }
- if (name.indexOf(".svg") === -1) {
- if (size === undef) {
- size = curTextFont.size;
- }
- return PFont.get(name, size);
- }
- // If the font is a glyph, calculate by SVG table
- var font = p.loadGlyphs(name);
-
- return {
- name: name,
- css: '12px sans-serif',
- glyph: true,
- units_per_em: font.units_per_em,
- horiz_adv_x: 1 / font.units_per_em * font.horiz_adv_x,
- ascent: font.ascent,
- descent: font.descent,
- width: function(str) {
- var width = 0;
- var len = str.length;
- for (var i = 0; i < len; i++) {
- try {
- width += parseFloat(p.glyphLook(p.glyphTable[name], str[i]).horiz_adv_x);
- }
- catch(e) {
- Processing.debug(e);
- }
- }
- return width / p.glyphTable[name].units_per_em;
- }
- };
- };
-
- /**
- * createFont() Loads a font into a variable of type PFont.
- * Smooth and charset are ignored in Processing.js.
- *
- * @param {String} name filename of the font to load
- * @param {int|float} size font size in pixels
- * @param {boolean} smooth not used in Processing.js
- * @param {char[]} charset not used in Processing.js
- *
- * @returns {PFont} new PFont object
- *
- * @see #PFont
- * @see #textFont
- * @see #text
- * @see #loadFont
- */
- p.createFont = function(name, size) {
- // because Processing.js only deals with real fonts,
- // createFont is simply a wrapper for loadFont/2
- return p.loadFont(name, size);
- };
-
- /**
- * textFont() Sets the current font.
- *
- * @param {PFont} pfont the PFont to load as current text font
- * @param {int|float} size optional font size in pixels
- *
- * @see #createFont
- * @see #loadFont
- * @see #PFont
- * @see #text
- */
- p.textFont = function(pfont, size) {
- if (size !== undef) {
- // If we're using an SVG glyph font, don't load from cache
- if (!pfont.glyph) {
- pfont = PFont.get(pfont.name, size);
- }
- curTextSize = size;
- }
- curTextFont = pfont;
- curFontName = curTextFont.name;
- curTextAscent = curTextFont.ascent;
- curTextDescent = curTextFont.descent;
- curTextLeading = curTextFont.leading;
- var curContext = drawing.$ensureContext();
- curContext.font = curTextFont.css;
- };
-
- /**
- * textSize() Sets the current font size in pixels.
- *
- * @param {int|float} size font size in pixels
- *
- * @see #textFont
- * @see #loadFont
- * @see #PFont
- * @see #text
- */
- p.textSize = function(size) {
- if (size !== curTextSize) {
- curTextFont = PFont.get(curFontName, size);
- curTextSize = size;
- // recache metrics
- curTextAscent = curTextFont.ascent;
- curTextDescent = curTextFont.descent;
- curTextLeading = curTextFont.leading;
- var curContext = drawing.$ensureContext();
- curContext.font = curTextFont.css;
- }
- };
-
- /**
- * textAscent() returns the maximum height a character extends above the baseline of the
- * current font at its current size, in pixels.
- *
- * @returns {float} height of the current font above the baseline, at its current size, in pixels
- *
- * @see #textDescent
- */
- p.textAscent = function() {
- return curTextAscent;
- };
-
- /**
- * textDescent() returns the maximum depth a character will protrude below the baseline of
- * the current font at its current size, in pixels.
- *
- * @returns {float} depth of the current font below the baseline, at its current size, in pixels
- *
- * @see #textAscent
- */
- p.textDescent = function() {
- return curTextDescent;
- };
-
- /**
- * textLeading() Sets the current font's leading, which is the distance
- * from baseline to baseline over consecutive lines, with additional vertical
- * spacing taking into account. Usually this value is 1.2 or 1.25 times the
- * textsize, but this value can be changed to effect vertically compressed
- * or stretched text.
- *
- * @param {int|float} the desired baseline-to-baseline size in pixels
- */
- p.textLeading = function(leading) {
- curTextLeading = leading;
- };
-
- /**
- * textAlign() Sets the current alignment for drawing text.
- *
- * @param {int} ALIGN Horizontal alignment, either LEFT, CENTER, or RIGHT
- * @param {int} YALIGN optional vertical alignment, either TOP, BOTTOM, CENTER, or BASELINE
- *
- * @see #loadFont
- * @see #PFont
- * @see #text
- */
- p.textAlign = function(xalign, yalign) {
- horizontalTextAlignment = xalign;
- verticalTextAlignment = yalign || PConstants.BASELINE;
- };
-
- /**
- * toP5String converts things with arbitrary data type into
- * string values, for text rendering.
- *
- * @param {any} any object that can be converted into a string
- *
- * @return {String} the string representation of the input
- */
- function toP5String(obj) {
- if(obj instanceof String) {
- return obj;
- }
- if(typeof obj === 'number') {
- // check if an int
- if(obj === (0 | obj)) {
- return obj.toString();
- }
- return p.nf(obj, 0, 3);
- }
- if(obj === null || obj === undef) {
- return "";
- }
- return obj.toString();
- }
-
- /**
- * textWidth() Calculates and returns the width of any character or text string in pixels.
- *
- * @param {char|String} str char or String to be measured
- *
- * @return {float} width of char or String in pixels
- *
- * @see #loadFont
- * @see #PFont
- * @see #text
- * @see #textFont
- */
- Drawing2D.prototype.textWidth = function(str) {
- var lines = toP5String(str).split(/\r?\n/g), width = 0;
- var i, linesCount = lines.length;
-
- curContext.font = curTextFont.css;
- for (i = 0; i < linesCount; ++i) {
- width = Math.max(width, curTextFont.measureTextWidth(lines[i]));
- }
- return width | 0;
- };
-
- Drawing3D.prototype.textWidth = function(str) {
- var lines = toP5String(str).split(/\r?\n/g), width = 0;
- var i, linesCount = lines.length;
- if (textcanvas === undef) {
- textcanvas = document.createElement("canvas");
- }
-
- var textContext = textcanvas.getContext("2d");
- textContext.font = curTextFont.css;
-
- for (i = 0; i < linesCount; ++i) {
- width = Math.max(width, textContext.measureText(lines[i]).width);
- }
- return width | 0;
- };
-
- // A lookup table for characters that can not be referenced by Object
- p.glyphLook = function(font, chr) {
- try {
- switch (chr) {
- case "1":
- return font.one;
- case "2":
- return font.two;
- case "3":
- return font.three;
- case "4":
- return font.four;
- case "5":
- return font.five;
- case "6":
- return font.six;
- case "7":
- return font.seven;
- case "8":
- return font.eight;
- case "9":
- return font.nine;
- case "0":
- return font.zero;
- case " ":
- return font.space;
- case "$":
- return font.dollar;
- case "!":
- return font.exclam;
- case '"':
- return font.quotedbl;
- case "#":
- return font.numbersign;
- case "%":
- return font.percent;
- case "&":
- return font.ampersand;
- case "'":
- return font.quotesingle;
- case "(":
- return font.parenleft;
- case ")":
- return font.parenright;
- case "*":
- return font.asterisk;
- case "+":
- return font.plus;
- case ",":
- return font.comma;
- case "-":
- return font.hyphen;
- case ".":
- return font.period;
- case "/":
- return font.slash;
- case "_":
- return font.underscore;
- case ":":
- return font.colon;
- case ";":
- return font.semicolon;
- case "<":
- return font.less;
- case "=":
- return font.equal;
- case ">":
- return font.greater;
- case "?":
- return font.question;
- case "@":
- return font.at;
- case "[":
- return font.bracketleft;
- case "\\":
- return font.backslash;
- case "]":
- return font.bracketright;
- case "^":
- return font.asciicircum;
- case "`":
- return font.grave;
- case "{":
- return font.braceleft;
- case "|":
- return font.bar;
- case "}":
- return font.braceright;
- case "~":
- return font.asciitilde;
- // If the character is not 'special', access it by object reference
- default:
- return font[chr];
- }
- } catch(e) {
- Processing.debug(e);
- }
- };
-
- // Print some text to the Canvas
- Drawing2D.prototype.text$line = function(str, x, y, z, align) {
- var textWidth = 0, xOffset = 0;
- // If the font is a standard Canvas font...
- if (!curTextFont.glyph) {
- if (str && ("fillText" in curContext)) {
- if (isFillDirty) {
- curContext.fillStyle = p.color.toString(currentFillColor);
- isFillDirty = false;
- }
-
- // horizontal offset/alignment
- if(align === PConstants.RIGHT || align === PConstants.CENTER) {
- textWidth = curTextFont.measureTextWidth(str);
-
- if(align === PConstants.RIGHT) {
- xOffset = -textWidth;
- } else { // if(align === PConstants.CENTER)
- xOffset = -textWidth/2;
- }
- }
-
- curContext.fillText(str, x+xOffset, y);
- }
- } else {
- // If the font is a Batik SVG font...
- var font = p.glyphTable[curFontName];
- saveContext();
- curContext.translate(x, y + curTextSize);
-
- // horizontal offset/alignment
- if(align === PConstants.RIGHT || align === PConstants.CENTER) {
- textWidth = font.width(str);
-
- if(align === PConstants.RIGHT) {
- xOffset = -textWidth;
- } else { // if(align === PConstants.CENTER)
- xOffset = -textWidth/2;
- }
- }
-
- var upem = font.units_per_em,
- newScale = 1 / upem * curTextSize;
-
- curContext.scale(newScale, newScale);
-
- for (var i=0, len=str.length; i < len; i++) {
- // Test character against glyph table
- try {
- p.glyphLook(font, str[i]).draw();
- } catch(e) {
- Processing.debug(e);
- }
- }
- restoreContext();
- }
- };
-
- Drawing3D.prototype.text$line = function(str, x, y, z, align) {
- // handle case for 3d text
- if (textcanvas === undef) {
- textcanvas = document.createElement("canvas");
- }
- var oldContext = curContext;
- curContext = textcanvas.getContext("2d");
- curContext.font = curTextFont.css;
- var textWidth = curTextFont.measureTextWidth(str);
- textcanvas.width = textWidth;
- textcanvas.height = curTextSize;
- curContext = textcanvas.getContext("2d"); // refreshes curContext
- curContext.font = curTextFont.css;
- curContext.textBaseline="top";
-
- // paint on 2D canvas
- Drawing2D.prototype.text$line(str,0,0,0,PConstants.LEFT);
-
- // use it as a texture
- var aspect = textcanvas.width/textcanvas.height;
- curContext = oldContext;
-
- curContext.bindTexture(curContext.TEXTURE_2D, textTex);
- curContext.texImage2D(curContext.TEXTURE_2D, 0, curContext.RGBA, curContext.RGBA, curContext.UNSIGNED_BYTE, textcanvas);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_MAG_FILTER, curContext.LINEAR);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_MIN_FILTER, curContext.LINEAR);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_WRAP_T, curContext.CLAMP_TO_EDGE);
- curContext.texParameteri(curContext.TEXTURE_2D, curContext.TEXTURE_WRAP_S, curContext.CLAMP_TO_EDGE);
- // If we don't have a power of two texture, we can't mipmap it.
- // curContext.generateMipmap(curContext.TEXTURE_2D);
-
- // horizontal offset/alignment
- var xOffset = 0;
- if (align === PConstants.RIGHT) {
- xOffset = -textWidth;
- } else if(align === PConstants.CENTER) {
- xOffset = -textWidth/2;
- }
- var model = new PMatrix3D();
- var scalefactor = curTextSize * 0.5;
- model.translate(x+xOffset-scalefactor/2, y-scalefactor, z);
- model.scale(-aspect*scalefactor, -scalefactor, scalefactor);
- model.translate(-1, -1, -1);
- model.transpose();
-
- var view = new PMatrix3D();
- view.scale(1, -1, 1);
- view.apply(modelView.array());
- view.transpose();
-
- curContext.useProgram(programObject2D);
- vertexAttribPointer("vertex2d", programObject2D, "Vertex", 3, textBuffer);
- vertexAttribPointer("aTextureCoord2d", programObject2D, "aTextureCoord", 2, textureBuffer);
- uniformi("uSampler2d", programObject2D, "uSampler", [0]);
- uniformi("picktype2d", programObject2D, "picktype", 1);
- uniformMatrix("model2d", programObject2D, "model", false, model.array());
- uniformMatrix("view2d", programObject2D, "view", false, view.array());
- uniformf("color2d", programObject2D, "color", fillStyle);
- curContext.bindBuffer(curContext.ELEMENT_ARRAY_BUFFER, indexBuffer);
- curContext.drawElements(curContext.TRIANGLES, 6, curContext.UNSIGNED_SHORT, 0);
- };
-
-
- /**
- * unbounded text function (z is an optional argument)
- */
- function text$4(str, x, y, z) {
- var lines, linesCount;
- if(str.indexOf('\n') < 0) {
- lines = [str];
- linesCount = 1;
- } else {
- lines = str.split(/\r?\n/g);
- linesCount = lines.length;
- }
- // handle text line-by-line
-
- var yOffset = 0;
- if(verticalTextAlignment === PConstants.TOP) {
- yOffset = curTextAscent + curTextDescent;
- } else if(verticalTextAlignment === PConstants.CENTER) {
- yOffset = curTextAscent/2 - (linesCount-1)*curTextLeading/2;
- } else if(verticalTextAlignment === PConstants.BOTTOM) {
- yOffset = -(curTextDescent + (linesCount-1)*curTextLeading);
- }
-
- for(var i=0;i height) {
- return;
- }
-
- var spaceMark = -1;
- var start = 0;
- var lineWidth = 0;
- var drawCommands = [];
-
- // run through text, character-by-character
- for (var charPos=0, len=str.length; charPos < len; charPos++)
- {
- var currentChar = str[charPos];
- var spaceChar = (currentChar === " ");
- var letterWidth = curTextFont.measureTextWidth(currentChar);
-
- // if we aren't looking at a newline, and the text still fits, keep processing
- if (currentChar !== "\n" && (lineWidth + letterWidth <= width)) {
- if (spaceChar) { spaceMark = charPos; }
- lineWidth += letterWidth;
- }
-
- // if we're looking at a newline, or the text no longer fits, push the section that fit into the drawcommand list
- else
- {
- if (spaceMark + 1 === start) {
- if(charPos>0) {
- // Whole line without spaces so far.
- spaceMark = charPos;
- } else {
- // 'fail', because the line can't even fit the first character
- return;
- }
- }
-
- if (currentChar === "\n") {
- drawCommands.push({text:str.substring(start, charPos), width: lineWidth});
- start = charPos + 1;
- } else {
- // current is not a newline, which means the line doesn't fit in box. push text.
- // In Processing 1.5.1, the space is also pushed, so we push up to spaceMark+1,
- // rather than up to spaceMark, as was the case for Processing 1.5 and earlier.
- drawCommands.push({text:str.substring(start, spaceMark+1), width: lineWidth});
- start = spaceMark + 1;
- }
-
- // newline + return
- lineWidth = 0;
- charPos = start - 1;
- }
- }
-
- // push the remaining text
- if (start < len) {
- drawCommands.push({text:str.substring(start), width: lineWidth});
- }
-
- // resolve horizontal alignment
- var xOffset = 1,
- yOffset = curTextAscent;
- if (horizontalTextAlignment === PConstants.CENTER) {
- xOffset = width/2;
- } else if (horizontalTextAlignment === PConstants.RIGHT) {
- xOffset = width;
- }
-
- // resolve vertical alignment
- var linesCount = drawCommands.length,
- visibleLines = Math.min(linesCount, Math.floor(height/curTextLeading));
- if(verticalTextAlignment === PConstants.TOP) {
- yOffset = curTextAscent + curTextDescent;
- } else if(verticalTextAlignment === PConstants.CENTER) {
- yOffset = (height/2) - curTextLeading * (visibleLines/2 - 1);
- } else if(verticalTextAlignment === PConstants.BOTTOM) {
- yOffset = curTextDescent + curTextLeading;
- }
-
- var command,
- drawCommand,
- leading;
- for (command = 0; command < linesCount; command++) {
- leading = command * curTextLeading;
- // stop if not enough space for one more line draw
- if (yOffset + leading > height - curTextDescent) {
- break;
- }
- drawCommand = drawCommands[command];
- drawing.text$line(drawCommand.text, x + xOffset, y + yOffset + leading, z, horizontalTextAlignment);
- }
- }
-
- /**
- * text() Draws text to the screen.
- *
- * @param {String|char|int|float} data the alphanumeric symbols to be displayed
- * @param {int|float} x x-coordinate of text
- * @param {int|float} y y-coordinate of text
- * @param {int|float} z optional z-coordinate of text
- * @param {String} stringdata optional letters to be displayed
- * @param {int|float} width optional width of text box
- * @param {int|float} height optional height of text box
- *
- * @see #textAlign
- * @see #textMode
- * @see #loadFont
- * @see #PFont
- * @see #textFont
- */
- p.text = function() {
- if (textMode === PConstants.SHAPE) {
- // TODO: requires beginRaw function
- return;
- }
- if (arguments.length === 3) { // for text( str, x, y)
- text$4(toP5String(arguments[0]), arguments[1], arguments[2], 0);
- } else if (arguments.length === 4) { // for text( str, x, y, z)
- text$4(toP5String(arguments[0]), arguments[1], arguments[2], arguments[3]);
- } else if (arguments.length === 5) { // for text( str, x, y , width, height)
- text$6(toP5String(arguments[0]), arguments[1], arguments[2], arguments[3], arguments[4], 0);
- } else if (arguments.length === 6) { // for text( stringdata, x, y , width, height, z)
- text$6(toP5String(arguments[0]), arguments[1], arguments[2], arguments[3], arguments[4], arguments[5]);
- }
- };
-
- /**
- * Sets the way text draws to the screen. In the default configuration (the MODEL mode), it's possible to rotate,
- * scale, and place letters in two and three dimensional space.
Changing to SCREEN mode draws letters
- * directly to the front of the window and greatly increases rendering quality and speed when used with the P2D and
- * P3D renderers. textMode(SCREEN) with OPENGL and JAVA2D (the default) renderers will generally be slower, though
- * pixel accurate with P2D and P3D. With textMode(SCREEN), the letters draw at the actual size of the font (in pixels)
- * and therefore calls to textSize() will not affect the size of the letters. To create a font at the size you
- * desire, use the "Create font..." option in the Tools menu, or use the createFont() function. When using textMode(SCREEN),
- * any z-coordinate passed to a text() command will be ignored, because your computer screen is...flat!
- *
- * @param {int} MODE Either MODEL, SCREEN or SHAPE (not yet supported)
- *
- * @see loadFont
- * @see PFont
- * @see text
- * @see textFont
- * @see createFont
- */
- p.textMode = function(mode){
- textMode = mode;
- };
-
- // Load Batik SVG Fonts and parse to pre-def objects for quick rendering
- p.loadGlyphs = function(url) {
- var x, y, cx, cy, nx, ny, d, a, lastCom, lenC, horiz_adv_x, getXY = '[0-9\\-]+', path;
-
- // Return arrays of SVG commands and coords
- // get this to use p.matchAll() - will need to work around the lack of null return
- var regex = function(needle, hay) {
- var i = 0,
- results = [],
- latest, regexp = new RegExp(needle, "g");
- latest = results[i] = regexp.exec(hay);
- while (latest) {
- i++;
- latest = results[i] = regexp.exec(hay);
- }
- return results;
- };
-
- var buildPath = function(d) {
- var c = regex("[A-Za-z][0-9\\- ]+|Z", d);
- var beforePathDraw = function() {
- saveContext();
- return drawing.$ensureContext();
- };
- var afterPathDraw = function() {
- executeContextFill();
- executeContextStroke();
- restoreContext();
- };
-
- // Begin storing path object
- path = "return {draw:function(){var curContext=beforePathDraw();curContext.beginPath();";
-
- x = 0;
- y = 0;
- cx = 0;
- cy = 0;
- nx = 0;
- ny = 0;
- d = 0;
- a = 0;
- lastCom = "";
- lenC = c.length - 1;
-
- // Loop through SVG commands translating to canvas eqivs functions in path object
- for (var j = 0; j < lenC; j++) {
- var com = c[j][0], xy = regex(getXY, com);
-
- switch (com[0]) {
- case "M":
- //curContext.moveTo(x,-y);
- x = parseFloat(xy[0][0]);
- y = parseFloat(xy[1][0]);
- path += "curContext.moveTo(" + x + "," + (-y) + ");";
- break;
-
- case "L":
- //curContext.lineTo(x,-y);
- x = parseFloat(xy[0][0]);
- y = parseFloat(xy[1][0]);
- path += "curContext.lineTo(" + x + "," + (-y) + ");";
- break;
-
- case "H":
- //curContext.lineTo(x,-y)
- x = parseFloat(xy[0][0]);
- path += "curContext.lineTo(" + x + "," + (-y) + ");";
- break;
-
- case "V":
- //curContext.lineTo(x,-y);
- y = parseFloat(xy[0][0]);
- path += "curContext.lineTo(" + x + "," + (-y) + ");";
- break;
-
- case "T":
- //curContext.quadraticCurveTo(cx,-cy,nx,-ny);
- nx = parseFloat(xy[0][0]);
- ny = parseFloat(xy[1][0]);
-
- if (lastCom === "Q" || lastCom === "T") {
- d = Math.sqrt(Math.pow(x - cx, 2) + Math.pow(cy - y, 2));
- a = Math.PI + Math.atan2(cx - x, cy - y);
- cx = x + (Math.sin(a) * (d));
- cy = y + (Math.cos(a) * (d));
- } else {
- cx = x;
- cy = y;
- }
-
- path += "curContext.quadraticCurveTo(" + cx + "," + (-cy) + "," + nx + "," + (-ny) + ");";
- x = nx;
- y = ny;
- break;
-
- case "Q":
- //curContext.quadraticCurveTo(cx,-cy,nx,-ny);
- cx = parseFloat(xy[0][0]);
- cy = parseFloat(xy[1][0]);
- nx = parseFloat(xy[2][0]);
- ny = parseFloat(xy[3][0]);
- path += "curContext.quadraticCurveTo(" + cx + "," + (-cy) + "," + nx + "," + (-ny) + ");";
- x = nx;
- y = ny;
- break;
-
- case "Z":
- //curContext.closePath();
- path += "curContext.closePath();";
- break;
- }
- lastCom = com[0];
- }
-
- path += "afterPathDraw();";
- path += "curContext.translate(" + horiz_adv_x + ",0);";
- path += "}}";
-
- return ((new Function("beforePathDraw", "afterPathDraw", path))(beforePathDraw, afterPathDraw));
- };
-
- // Parse SVG font-file into block of Canvas commands
- var parseSVGFont = function(svg) {
- // Store font attributes
- var font = svg.getElementsByTagName("font");
- p.glyphTable[url].horiz_adv_x = font[0].getAttribute("horiz-adv-x");
-
- var font_face = svg.getElementsByTagName("font-face")[0];
- p.glyphTable[url].units_per_em = parseFloat(font_face.getAttribute("units-per-em"));
- p.glyphTable[url].ascent = parseFloat(font_face.getAttribute("ascent"));
- p.glyphTable[url].descent = parseFloat(font_face.getAttribute("descent"));
-
- var glyph = svg.getElementsByTagName("glyph"),
- len = glyph.length;
-
- // Loop through each glyph in the SVG
- for (var i = 0; i < len; i++) {
- // Store attributes for this glyph
- var unicode = glyph[i].getAttribute("unicode");
- var name = glyph[i].getAttribute("glyph-name");
- horiz_adv_x = glyph[i].getAttribute("horiz-adv-x");
- if (horiz_adv_x === null) {
- horiz_adv_x = p.glyphTable[url].horiz_adv_x;
- }
- d = glyph[i].getAttribute("d");
- // Split path commands in glpyh
- if (d !== undef) {
- path = buildPath(d);
- // Store glyph data to table object
- p.glyphTable[url][name] = {
- name: name,
- unicode: unicode,
- horiz_adv_x: horiz_adv_x,
- draw: path.draw
- };
- }
- } // finished adding glyphs to table
- };
-
- // Load and parse Batik SVG font as XML into a Processing Glyph object
- var loadXML = function() {
- var xmlDoc;
-
- try {
- xmlDoc = document.implementation.createDocument("", "", null);
- }
- catch(e_fx_op) {
- Processing.debug(e_fx_op.message);
- return;
- }
-
- try {
- xmlDoc.async = false;
- xmlDoc.load(url);
- parseSVGFont(xmlDoc.getElementsByTagName("svg")[0]);
- }
- catch(e_sf_ch) {
- // Google Chrome, Safari etc.
- Processing.debug(e_sf_ch);
- try {
- var xmlhttp = new window.XMLHttpRequest();
- xmlhttp.open("GET", url, false);
- xmlhttp.send(null);
- parseSVGFont(xmlhttp.responseXML.documentElement);
- }
- catch(e) {
- Processing.debug(e_sf_ch);
- }
- }
- };
-
- // Create a new object in glyphTable to store this font
- p.glyphTable[url] = {};
-
- // Begin loading the Batik SVG font...
- loadXML(url);
-
- // Return the loaded font for attribute grabbing
- return p.glyphTable[url];
- };
-
- /**
- * Gets the sketch parameter value. The parameter can be defined as the canvas attribute with
- * the "data-processing-" prefix or provided in the pjs directive (e.g. param-test="52").
- * The function tries the canvas attributes, then the pjs directive content.
- *
- * @param {String} name The name of the param to read.
- *
- * @returns {String} The parameter value, or null if parameter is not defined.
- */
- p.param = function(name) {
- // trying attribute that was specified in CANVAS
- var attributeName = "data-processing-" + name;
- if (curElement.hasAttribute(attributeName)) {
- return curElement.getAttribute(attributeName);
- }
- // trying child PARAM elements of the CANVAS
- for (var i = 0, len = curElement.childNodes.length; i < len; ++i) {
- var item = curElement.childNodes.item(i);
- if (item.nodeType !== 1 || item.tagName.toLowerCase() !== "param") {
- continue;
- }
- if (item.getAttribute("name") === name) {
- return item.getAttribute("value");
- }
- }
- // fallback to default params
- if (curSketch.params.hasOwnProperty(name)) {
- return curSketch.params[name];
- }
- return null;
- };
-
- ////////////////////////////////////////////////////////////////////////////
- // 2D/3D methods wiring utils
- ////////////////////////////////////////////////////////////////////////////
- function wireDimensionalFunctions(mode) {
- // Drawing2D/Drawing3D
- if (mode === '3D') {
- drawing = new Drawing3D();
- } else if (mode === '2D') {
- drawing = new Drawing2D();
- } else {
- drawing = new DrawingPre();
- }
-
- // Wire up functions (Use DrawingPre properties names)
- for (var i in DrawingPre.prototype) {
- if (DrawingPre.prototype.hasOwnProperty(i) && i.indexOf("$") < 0) {
- p[i] = drawing[i];
- }
- }
-
- // Run initialization
- drawing.$init();
- }
-
- function createDrawingPreFunction(name) {
- return function() {
- wireDimensionalFunctions("2D");
- return drawing[name].apply(this, arguments);
- };
- }
- DrawingPre.prototype.translate = createDrawingPreFunction("translate");
- DrawingPre.prototype.scale = createDrawingPreFunction("scale");
- DrawingPre.prototype.pushMatrix = createDrawingPreFunction("pushMatrix");
- DrawingPre.prototype.popMatrix = createDrawingPreFunction("popMatrix");
- DrawingPre.prototype.resetMatrix = createDrawingPreFunction("resetMatrix");
- DrawingPre.prototype.applyMatrix = createDrawingPreFunction("applyMatrix");
- DrawingPre.prototype.rotate = createDrawingPreFunction("rotate");
- DrawingPre.prototype.rotateZ = createDrawingPreFunction("rotateZ");
- DrawingPre.prototype.redraw = createDrawingPreFunction("redraw");
- DrawingPre.prototype.toImageData = createDrawingPreFunction("toImageData");
- DrawingPre.prototype.ambientLight = createDrawingPreFunction("ambientLight");
- DrawingPre.prototype.directionalLight = createDrawingPreFunction("directionalLight");
- DrawingPre.prototype.lightFalloff = createDrawingPreFunction("lightFalloff");
- DrawingPre.prototype.lightSpecular = createDrawingPreFunction("lightSpecular");
- DrawingPre.prototype.pointLight = createDrawingPreFunction("pointLight");
- DrawingPre.prototype.noLights = createDrawingPreFunction("noLights");
- DrawingPre.prototype.spotLight = createDrawingPreFunction("spotLight");
- DrawingPre.prototype.beginCamera = createDrawingPreFunction("beginCamera");
- DrawingPre.prototype.endCamera = createDrawingPreFunction("endCamera");
- DrawingPre.prototype.frustum = createDrawingPreFunction("frustum");
- DrawingPre.prototype.box = createDrawingPreFunction("box");
- DrawingPre.prototype.sphere = createDrawingPreFunction("sphere");
- DrawingPre.prototype.ambient = createDrawingPreFunction("ambient");
- DrawingPre.prototype.emissive = createDrawingPreFunction("emissive");
- DrawingPre.prototype.shininess = createDrawingPreFunction("shininess");
- DrawingPre.prototype.specular = createDrawingPreFunction("specular");
- DrawingPre.prototype.fill = createDrawingPreFunction("fill");
- DrawingPre.prototype.stroke = createDrawingPreFunction("stroke");
- DrawingPre.prototype.strokeWeight = createDrawingPreFunction("strokeWeight");
- DrawingPre.prototype.smooth = createDrawingPreFunction("smooth");
- DrawingPre.prototype.noSmooth = createDrawingPreFunction("noSmooth");
- DrawingPre.prototype.point = createDrawingPreFunction("point");
- DrawingPre.prototype.vertex = createDrawingPreFunction("vertex");
- DrawingPre.prototype.endShape = createDrawingPreFunction("endShape");
- DrawingPre.prototype.bezierVertex = createDrawingPreFunction("bezierVertex");
- DrawingPre.prototype.curveVertex = createDrawingPreFunction("curveVertex");
- DrawingPre.prototype.curve = createDrawingPreFunction("curve");
- DrawingPre.prototype.line = createDrawingPreFunction("line");
- DrawingPre.prototype.bezier = createDrawingPreFunction("bezier");
- DrawingPre.prototype.rect = createDrawingPreFunction("rect");
- DrawingPre.prototype.ellipse = createDrawingPreFunction("ellipse");
- DrawingPre.prototype.background = createDrawingPreFunction("background");
- DrawingPre.prototype.image = createDrawingPreFunction("image");
- DrawingPre.prototype.textWidth = createDrawingPreFunction("textWidth");
- DrawingPre.prototype.text$line = createDrawingPreFunction("text$line");
- DrawingPre.prototype.$ensureContext = createDrawingPreFunction("$ensureContext");
- DrawingPre.prototype.$newPMatrix = createDrawingPreFunction("$newPMatrix");
-
- DrawingPre.prototype.size = function(aWidth, aHeight, aMode) {
- wireDimensionalFunctions(aMode === PConstants.WEBGL ? "3D" : "2D");
- p.size(aWidth, aHeight, aMode);
- };
-
- DrawingPre.prototype.$init = nop;
-
- Drawing2D.prototype.$init = function() {
- // Setup default 2d canvas context.
- // Moving this here removes the number of times we need to check the 3D variable
- p.size(p.width, p.height);
-
- curContext.lineCap = 'round';
-
- // Set default stroke and fill color
- p.noSmooth();
- p.disableContextMenu();
- };
- Drawing3D.prototype.$init = function() {
- // For ref/perf test compatibility until those are fixed
- p.use3DContext = true;
- };
-
- DrawingShared.prototype.$ensureContext = function() {
- return curContext;
- };
-
- //////////////////////////////////////////////////////////////////////////
- // Touch and Mouse event handling
- //////////////////////////////////////////////////////////////////////////
-
- function calculateOffset(curElement, event) {
- var element = curElement,
- offsetX = 0,
- offsetY = 0;
-
- p.pmouseX = p.mouseX;
- p.pmouseY = p.mouseY;
-
- // Find element offset
- if (element.offsetParent) {
- do {
- offsetX += element.offsetLeft;
- offsetY += element.offsetTop;
- } while (!!(element = element.offsetParent));
- }
-
- // Find Scroll offset
- element = curElement;
- do {
- offsetX -= element.scrollLeft || 0;
- offsetY -= element.scrollTop || 0;
- } while (!!(element = element.parentNode));
-
- // Add padding and border style widths to offset
- offsetX += stylePaddingLeft;
- offsetY += stylePaddingTop;
-
- offsetX += styleBorderLeft;
- offsetY += styleBorderTop;
-
- // Take into account any scrolling done
- offsetX += window.pageXOffset;
- offsetY += window.pageYOffset;
-
- return {'X':offsetX,'Y':offsetY};
- }
-
- function updateMousePosition(curElement, event) {
- var offset = calculateOffset(curElement, event);
-
- // Dropping support for IE clientX and clientY, switching to pageX and pageY so we don't have to calculate scroll offset.
- // Removed in ticket #184. See rev: 2f106d1c7017fed92d045ba918db47d28e5c16f4
- p.mouseX = event.pageX - offset.X;
- p.mouseY = event.pageY - offset.Y;
- }
-
- // Return a TouchEvent with canvas-specific x/y co-ordinates
- function addTouchEventOffset(t) {
- var offset = calculateOffset(t.changedTouches[0].target, t.changedTouches[0]),
- i;
-
- for (i = 0; i < t.touches.length; i++) {
- var touch = t.touches[i];
- touch.offsetX = touch.pageX - offset.X;
- touch.offsetY = touch.pageY - offset.Y;
- }
- for (i = 0; i < t.targetTouches.length; i++) {
- var targetTouch = t.targetTouches[i];
- targetTouch.offsetX = targetTouch.pageX - offset.X;
- targetTouch.offsetY = targetTouch.pageY - offset.Y;
- }
- for (i = 0; i < t.changedTouches.length; i++) {
- var changedTouch = t.changedTouches[i];
- changedTouch.offsetX = changedTouch.pageX - offset.X;
- changedTouch.offsetY = changedTouch.pageY - offset.Y;
- }
-
- return t;
- }
-
- attachEventHandler(curElement, "touchstart", function (t) {
- // Removes unwanted behaviour of the canvas when touching canvas
- curElement.setAttribute("style","-webkit-user-select: none");
- curElement.setAttribute("onclick","void(0)");
- curElement.setAttribute("style","-webkit-tap-highlight-color:rgba(0,0,0,0)");
- // Loop though eventHandlers and remove mouse listeners
- for (var i=0, ehl=eventHandlers.length; i 'while"B1""A2"'
- // parentheses() = B, brackets[] = C and braces{} = A
- function splitToAtoms(code) {
- var atoms = [];
- var items = code.split(/([\{\[\(\)\]\}])/);
- var result = items[0];
-
- var stack = [];
- for(var i=1; i < items.length; i += 2) {
- var item = items[i];
- if(item === '[' || item === '{' || item === '(') {
- stack.push(result); result = item;
- } else if(item === ']' || item === '}' || item === ')') {
- var kind = item === '}' ? 'A' : item === ')' ? 'B' : 'C';
- var index = atoms.length; atoms.push(result + item);
- result = stack.pop() + '"' + kind + (index + 1) + '"';
- }
- result += items[i + 1];
- }
- atoms.unshift(result);
- return atoms;
- }
-
- // replaces strings and regexs keyed by index with an array of strings
- function injectStrings(code, strings) {
- return code.replace(/'(\d+)'/g, function(all, index) {
- var val = strings[index];
- if(val.charAt(0) === "/") {
- return val;
- }
- return (/^'((?:[^'\\\n])|(?:\\.[0-9A-Fa-f]*))'$/).test(val) ? "(new $p.Character(" + val + "))" : val;
- });
- }
-
- // trims off leading and trailing spaces
- // returns an object. object.left, object.middle, object.right, object.untrim
- function trimSpaces(string) {
- var m1 = /^\s*/.exec(string), result;
- if(m1[0].length === string.length) {
- result = {left: m1[0], middle: "", right: ""};
- } else {
- var m2 = /\s*$/.exec(string);
- result = {left: m1[0], middle: string.substring(m1[0].length, m2.index), right: m2[0]};
- }
- result.untrim = function(t) { return this.left + t + this.right; };
- return result;
- }
-
- // simple trim of leading and trailing spaces
- function trim(string) {
- return string.replace(/^\s+/,'').replace(/\s+$/,'');
- }
-
- function appendToLookupTable(table, array) {
- for(var i=0,l=array.length;i([=]?)/g, replaceFunc);
- } while (genericsWereRemoved);
-
- var atoms = splitToAtoms(codeWoGenerics);
- var replaceContext;
- var declaredClasses = {}, currentClassId, classIdSeed = 0;
-
- function addAtom(text, type) {
- var lastIndex = atoms.length;
- atoms.push(text);
- return '"' + type + lastIndex + '"';
- }
-
- function generateClassId() {
- return "class" + (++classIdSeed);
- }
-
- function appendClass(class_, classId, scopeId) {
- class_.classId = classId;
- class_.scopeId = scopeId;
- declaredClasses[classId] = class_;
- }
-
- // functions defined below
- var transformClassBody, transformInterfaceBody, transformStatementsBlock, transformStatements, transformMain, transformExpression;
-
- var classesRegex = /\b((?:(?:public|private|final|protected|static|abstract)\s+)*)(class|interface)\s+([A-Za-z_$][\w$]*\b)(\s+extends\s+[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*(?:\s*,\s*[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*\b)*)?(\s+implements\s+[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*(?:\s*,\s*[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*\b)*)?\s*("A\d+")/g;
- var methodsRegex = /\b((?:(?:public|private|final|protected|static|abstract|synchronized)\s+)*)((?!(?:else|new|return|throw|function|public|private|protected)\b)[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*(?:\s*"C\d+")*)\s*([A-Za-z_$][\w$]*\b)\s*("B\d+")(\s*throws\s+[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*(?:\s*,\s*[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*)*)?\s*("A\d+"|;)/g;
- var fieldTest = /^((?:(?:public|private|final|protected|static)\s+)*)((?!(?:else|new|return|throw)\b)[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*(?:\s*"C\d+")*)\s*([A-Za-z_$][\w$]*\b)\s*(?:"C\d+"\s*)*([=,]|$)/;
- var cstrsRegex = /\b((?:(?:public|private|final|protected|static|abstract)\s+)*)((?!(?:new|return|throw)\b)[A-Za-z_$][\w$]*\b)\s*("B\d+")(\s*throws\s+[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*(?:\s*,\s*[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*)*)?\s*("A\d+")/g;
- var attrAndTypeRegex = /^((?:(?:public|private|final|protected|static)\s+)*)((?!(?:new|return|throw)\b)[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*(?:\s*"C\d+")*)\s*/;
- var functionsRegex = /\bfunction(?:\s+([A-Za-z_$][\w$]*))?\s*("B\d+")\s*("A\d+")/g;
-
- // This converts classes, methods and functions into atoms, and adds them to the atoms array.
- // classes = E, methods = D and functions = H
- function extractClassesAndMethods(code) {
- var s = code;
- s = s.replace(classesRegex, function(all) {
- return addAtom(all, 'E');
- });
- s = s.replace(methodsRegex, function(all) {
- return addAtom(all, 'D');
- });
- s = s.replace(functionsRegex, function(all) {
- return addAtom(all, 'H');
- });
- return s;
- }
-
- // This converts constructors into atoms, and adds them to the atoms array.
- // constructors = G
- function extractConstructors(code, className) {
- var result = code.replace(cstrsRegex, function(all, attr, name, params, throws_, body) {
- if(name !== className) {
- return all;
- }
- return addAtom(all, 'G');
- });
- return result;
- }
-
- // AstParam contains the name of a parameter inside a function declaration
- function AstParam(name) {
- this.name = name;
- }
- AstParam.prototype.toString = function() {
- return this.name;
- };
- // AstParams contains an array of AstParam objects
- function AstParams(params) {
- this.params = params;
- }
- AstParams.prototype.getNames = function() {
- var names = [];
- for(var i=0,l=this.params.length;i {...}
- s = s.replace(/\bnew\s+([A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*)(?:\s*"C\d+")+\s*("A\d+")/g, function(all, type, init) {
- return init;
- });
- // new Runnable() {...} --> "F???"
- s = s.replace(/\bnew\s+([A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*)(?:\s*"B\d+")\s*("A\d+")/g, function(all, type, init) {
- return addAtom(all, 'F');
- });
- // function(...) { } --> "H???"
- s = s.replace(functionsRegex, function(all) {
- return addAtom(all, 'H');
- });
- // new type[?] --> createJavaArray('type', [?])
- s = s.replace(/\bnew\s+([A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*)\s*("C\d+"(?:\s*"C\d+")*)/g, function(all, type, index) {
- var args = index.replace(/"C(\d+)"/g, function(all, j) { return atoms[j]; })
- .replace(/\[\s*\]/g, "[null]").replace(/\s*\]\s*\[\s*/g, ", ");
- var arrayInitializer = "{" + args.substring(1, args.length - 1) + "}";
- var createArrayArgs = "('" + type + "', " + addAtom(arrayInitializer, 'A') + ")";
- return '$p.createJavaArray' + addAtom(createArrayArgs, 'B');
- });
- // .length() --> .length
- s = s.replace(/(\.\s*length)\s*"B\d+"/g, "$1");
- // #000000 --> 0x000000
- s = s.replace(/#([0-9A-Fa-f]{6})\b/g, function(all, digits) {
- return "0xFF" + digits;
- });
- // delete (type)???, except (int)???
- s = s.replace(/"B(\d+)"(\s*(?:[\w$']|"B))/g, function(all, index, next) {
- var atom = atoms[index];
- if(!/^\(\s*[A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*\s*(?:"C\d+"\s*)*\)$/.test(atom)) {
- return all;
- }
- if(/^\(\s*int\s*\)$/.test(atom)) {
- return "(int)" + next;
- }
- var indexParts = atom.split(/"C(\d+)"/g);
- if(indexParts.length > 1) {
- // even items contains atom numbers, can check only first
- if(! /^\[\s*\]$/.test(atoms[indexParts[1]])) {
- return all; // fallback - not a cast
- }
- }
- return "" + next;
- });
- // (int)??? -> __int_cast(???)
- s = s.replace(/\(int\)([^,\]\)\}\?\:\*\+\-\/\^\|\%\&\~<\>\=]+)/g, function(all, arg) {
- var trimmed = trimSpaces(arg);
- return trimmed.untrim("__int_cast(" + trimmed.middle + ")");
- });
- // super() -> $superCstr(), super. -> $super.;
- s = s.replace(/\bsuper(\s*"B\d+")/g, "$$superCstr$1").replace(/\bsuper(\s*\.)/g, "$$super$1");
- // 000.43->0.43 and 0010f->10, but not 0010
- s = s.replace(/\b0+((\d*)(?:\.[\d*])?(?:[eE][\-\+]?\d+)?[fF]?)\b/, function(all, numberWo0, intPart) {
- if( numberWo0 === intPart) {
- return all;
- }
- return intPart === "" ? "0" + numberWo0 : numberWo0;
- });
- // 3.0f -> 3.0
- s = s.replace(/\b(\.?\d+\.?)[fF]\b/g, "$1");
- // Weird (?) parsing errors with %
- s = s.replace(/([^\s])%([^=\s])/g, "$1 % $2");
- // Since frameRate() and frameRate are different things,
- // we need to differentiate them somehow. So when we parse
- // the Processing.js source, replace frameRate so it isn't
- // confused with frameRate(), as well as keyPressed and mousePressed
- s = s.replace(/\b(frameRate|keyPressed|mousePressed)\b(?!\s*"B)/g, "__$1");
- // "boolean", "byte", "int", etc. => "parseBoolean", "parseByte", "parseInt", etc.
- s = s.replace(/\b(boolean|byte|char|float|int)\s*"B/g, function(all, name) {
- return "parse" + name.substring(0, 1).toUpperCase() + name.substring(1) + "\"B";
- });
- // "pixels" replacements:
- // pixels[i] = c => pixels.setPixel(i,c) | pixels[i] => pixels.getPixel(i)
- // pixels.length => pixels.getLength()
- // pixels = ar => pixels.set(ar) | pixels => pixels.toArray()
- s = s.replace(/\bpixels\b\s*(("C(\d+)")|\.length)?(\s*=(?!=)([^,\]\)\}]+))?/g,
- function(all, indexOrLength, index, atomIndex, equalsPart, rightSide) {
- if(index) {
- var atom = atoms[atomIndex];
- if(equalsPart) {
- return "pixels.setPixel" + addAtom("(" +atom.substring(1, atom.length - 1) +
- "," + rightSide + ")", 'B');
- }
- return "pixels.getPixel" + addAtom("(" + atom.substring(1, atom.length - 1) +
- ")", 'B');
- }
- if(indexOrLength) {
- // length
- return "pixels.getLength" + addAtom("()", 'B');
- }
- if(equalsPart) {
- return "pixels.set" + addAtom("(" + rightSide + ")", 'B');
- }
- return "pixels.toArray" + addAtom("()", 'B');
- });
- // Java method replacements for: replace, replaceAll, replaceFirst, equals, hashCode, etc.
- // xxx.replace(yyy) -> __replace(xxx, yyy)
- // "xx".replace(yyy) -> __replace("xx", yyy)
- var repeatJavaReplacement;
- function replacePrototypeMethods(all, subject, method, atomIndex) {
- var atom = atoms[atomIndex];
- repeatJavaReplacement = true;
- var trimmed = trimSpaces(atom.substring(1, atom.length - 1));
- return "__" + method + ( trimmed.middle === "" ? addAtom("(" + subject.replace(/\.\s*$/, "") + ")", 'B') :
- addAtom("(" + subject.replace(/\.\s*$/, "") + "," + trimmed.middle + ")", 'B') );
- }
- do {
- repeatJavaReplacement = false;
- s = s.replace(/((?:'\d+'|\b[A-Za-z_$][\w$]*\s*(?:"[BC]\d+")*)\s*\.\s*(?:[A-Za-z_$][\w$]*\s*(?:"[BC]\d+"\s*)*\.\s*)*)(replace|replaceAll|replaceFirst|contains|equals|equalsIgnoreCase|hashCode|toCharArray|printStackTrace|split|startsWith|endsWith|codePointAt)\s*"B(\d+)"/g,
- replacePrototypeMethods);
- } while (repeatJavaReplacement);
- // xxx instanceof yyy -> __instanceof(xxx, yyy)
- function replaceInstanceof(all, subject, type) {
- repeatJavaReplacement = true;
- return "__instanceof" + addAtom("(" + subject + ", " + type + ")", 'B');
- }
- do {
- repeatJavaReplacement = false;
- s = s.replace(/((?:'\d+'|\b[A-Za-z_$][\w$]*\s*(?:"[BC]\d+")*)\s*(?:\.\s*[A-Za-z_$][\w$]*\s*(?:"[BC]\d+"\s*)*)*)instanceof\s+([A-Za-z_$][\w$]*\s*(?:\.\s*[A-Za-z_$][\w$]*)*)/g,
- replaceInstanceof);
- } while (repeatJavaReplacement);
- // this() -> $constr()
- s = s.replace(/\bthis(\s*"B\d+")/g, "$$constr$1");
-
- return s;
- }
-
- function AstInlineClass(baseInterfaceName, body) {
- this.baseInterfaceName = baseInterfaceName;
- this.body = body;
- body.owner = this;
- }
- AstInlineClass.prototype.toString = function() {
- return "new (" + this.body + ")";
- };
-
- function transformInlineClass(class_) {
- var m = new RegExp(/\bnew\s*([A-Za-z_$][\w$]*\s*(?:\.\s*[A-Za-z_$][\w$]*)*)\s*"B\d+"\s*"A(\d+)"/).exec(class_);
- var oldClassId = currentClassId, newClassId = generateClassId();
- currentClassId = newClassId;
- var uniqueClassName = m[1] + "$" + newClassId;
- var inlineClass = new AstInlineClass(uniqueClassName,
- transformClassBody(atoms[m[2]], uniqueClassName, "", "implements " + m[1]));
- appendClass(inlineClass, newClassId, oldClassId);
- currentClassId = oldClassId;
- return inlineClass;
- }
-
- function AstFunction(name, params, body) {
- this.name = name;
- this.params = params;
- this.body = body;
- }
- AstFunction.prototype.toString = function() {
- var oldContext = replaceContext;
- // saving "this." and parameters
- var names = appendToLookupTable({"this":null}, this.params.getNames());
- replaceContext = function (subject) {
- return names.hasOwnProperty(subject.name) ? subject.name : oldContext(subject);
- };
- var result = "function";
- if(this.name) {
- result += " " + this.name;
- }
- result += this.params + " " + this.body;
- replaceContext = oldContext;
- return result;
- };
-
- function transformFunction(class_) {
- var m = new RegExp(/\b([A-Za-z_$][\w$]*)\s*"B(\d+)"\s*"A(\d+)"/).exec(class_);
- return new AstFunction( m[1] !== "function" ? m[1] : null,
- transformParams(atoms[m[2]]), transformStatementsBlock(atoms[m[3]]));
- }
-
- function AstInlineObject(members) {
- this.members = members;
- }
- AstInlineObject.prototype.toString = function() {
- var oldContext = replaceContext;
- replaceContext = function (subject) {
- return subject.name === "this" ? "this" : oldContext(subject); // saving "this."
- };
- var result = "";
- for(var i=0,l=this.members.length;i= 0;
- var definitions = statement.substring(attrAndType[0].length).split(/,\s*/g);
- var defaultTypeValue = getDefaultValueForType(attrAndType[2]);
- for(var i=0; i < definitions.length; ++i) {
- definitions[i] = transformVarDefinition(definitions[i], defaultTypeValue);
- }
- return new AstClassField(definitions, attrAndType[2], isStatic);
- }
-
- function AstConstructor(params, body) {
- this.params = params;
- this.body = body;
- }
- AstConstructor.prototype.toString = function() {
- var paramNames = appendToLookupTable({}, this.params.getNames());
- var oldContext = replaceContext;
- replaceContext = function (subject) {
- return paramNames.hasOwnProperty(subject.name) ? subject.name : oldContext(subject);
- };
- var prefix = "function $constr_" + this.params.params.length + this.params.toString();
- var body = this.body.toString();
- if(!/\$(superCstr|constr)\b/.test(body)) {
- body = "{\n$superCstr();\n" + body.substring(1);
- }
- replaceContext = oldContext;
- return prefix + body + "\n";
- };
-
- function transformConstructor(cstr) {
- var m = new RegExp(/"B(\d+)"\s*"A(\d+)"/).exec(cstr);
- var params = transformParams(atoms[m[1]]);
-
- return new AstConstructor(params, transformStatementsBlock(atoms[m[2]]));
- }
-
- function AstInterfaceBody(name, interfacesNames, methodsNames, fields, innerClasses, misc) {
- var i,l;
- this.name = name;
- this.interfacesNames = interfacesNames;
- this.methodsNames = methodsNames;
- this.fields = fields;
- this.innerClasses = innerClasses;
- this.misc = misc;
- for(i=0,l=fields.length; i 0) {
- result += this.functions.join('\n') + '\n';
- }
-
- sortByWeight(this.innerClasses);
- for (i = 0, l = this.innerClasses.length; i < l; ++i) {
- var innerClass = this.innerClasses[i];
- if (innerClass.isStatic) {
- staticDefinitions += className + "." + innerClass.name + " = " + innerClass + ";\n";
- result += selfId + "." + innerClass.name + " = " + className + "." + innerClass.name + ";\n";
- } else {
- result += selfId + "." + innerClass.name + " = " + innerClass + ";\n";
- }
- }
-
- for (i = 0, l = this.fields.length; i < l; ++i) {
- var field = this.fields[i];
- if (field.isStatic) {
- staticDefinitions += className + "." + field.definitions.join(";\n" + className + ".") + ";\n";
- for (j = 0, m = field.definitions.length; j < m; ++j) {
- var fieldName = field.definitions[j].name, staticName = className + "." + fieldName;
- result += "$p.defineProperty(" + selfId + ", '" + fieldName + "', {" +
- "get: function(){return " + staticName + "}, " +
- "set: function(val){" + staticName + " = val}});\n";
- }
- } else {
- result += selfId + "." + field.definitions.join(";\n" + selfId + ".") + ";\n";
- }
- }
- var methodOverloads = {};
- for (i = 0, l = this.methods.length; i < l; ++i) {
- var method = this.methods[i];
- var overload = methodOverloads[method.name];
- var methodId = method.name + "$" + method.params.params.length;
- if (overload) {
- ++overload;
- methodId += "_" + overload;
- } else {
- overload = 1;
- }
- method.methodId = methodId;
- methodOverloads[method.name] = overload;
- if (method.isStatic) {
- staticDefinitions += method;
- staticDefinitions += "$p.addMethod(" + className + ", '" + method.name + "', " + methodId + ");\n";
- result += "$p.addMethod(" + selfId + ", '" + method.name + "', " + methodId + ");\n";
- } else {
- result += method;
- result += "$p.addMethod(" + selfId + ", '" + method.name + "', " + methodId + ");\n";
- }
- }
- result += trim(this.misc.tail);
-
- if (this.cstrs.length > 0) {
- result += this.cstrs.join('\n') + '\n';
- }
-
- result += "function $constr() {\n";
- var cstrsIfs = [];
- for (i = 0, l = this.cstrs.length; i < l; ++i) {
- var paramsLength = this.cstrs[i].params.params.length;
- cstrsIfs.push("if(arguments.length === " + paramsLength + ") { " +
- "$constr_" + paramsLength + ".apply(" + selfId + ", arguments); }");
- }
- if(cstrsIfs.length > 0) {
- result += cstrsIfs.join(" else ") + " else ";
- }
- // ??? add check if length is 0, otherwise fail
- result += "$superCstr();\n}\n";
- result += "$constr.apply(null, arguments);\n";
-
- replaceContext = oldContext;
- return "(function() {\n" +
- "function " + className + "() {\n" + result + "}\n" +
- staticDefinitions +
- metadata +
- "return " + className + ";\n" +
- "})()";
- };
-
- transformClassBody = function(body, name, baseName, interfaces) {
- var declarations = body.substring(1, body.length - 1);
- declarations = extractClassesAndMethods(declarations);
- declarations = extractConstructors(declarations, name);
- var methods = [], classes = [], cstrs = [], functions = [];
- declarations = declarations.replace(/"([DEGH])(\d+)"/g, function(all, type, index) {
- if(type === 'D') { methods.push(index); }
- else if(type === 'E') { classes.push(index); }
- else if(type === 'H') { functions.push(index); }
- else { cstrs.push(index); }
- return "";
- });
- var fields = declarations.replace(/^(?:\s*;)+/, "").split(/;(?:\s*;)*/g);
- var baseClassName, interfacesNames;
- var i;
-
- if(baseName !== undef) {
- baseClassName = baseName.replace(/^\s*extends\s+([A-Za-z_$][\w$]*\b(?:\s*\.\s*[A-Za-z_$][\w$]*\b)*)\s*$/g, "$1");
- }
-
- if(interfaces !== undef) {
- interfacesNames = interfaces.replace(/^\s*implements\s+(.+?)\s*$/g, "$1").split(/\s*,\s*/g);
- }
-
- for(i = 0; i < functions.length; ++i) {
- functions[i] = transformFunction(atoms[functions[i]]);
- }
- for(i = 0; i < methods.length; ++i) {
- methods[i] = transformClassMethod(atoms[methods[i]]);
- }
- for(i = 0; i < fields.length - 1; ++i) {
- var field = trimSpaces(fields[i]);
- fields[i] = transformClassField(field.middle);
- }
- var tail = fields.pop();
- for(i = 0; i < cstrs.length; ++i) {
- cstrs[i] = transformConstructor(atoms[cstrs[i]]);
- }
- for(i = 0; i < classes.length; ++i) {
- classes[i] = transformInnerClass(atoms[classes[i]]);
- }
-
- return new AstClassBody(name, baseClassName, interfacesNames, functions, methods, fields, cstrs,
- classes, { tail: tail });
- };
-
- function AstInterface(name, body) {
- this.name = name;
- this.body = body;
- body.owner = this;
- }
- AstInterface.prototype.toString = function() {
- return "var " + this.name + " = " + this.body + ";\n" +
- "$p." + this.name + " = " + this.name + ";\n";
- };
- function AstClass(name, body) {
- this.name = name;
- this.body = body;
- body.owner = this;
- }
- AstClass.prototype.toString = function() {
- return "var " + this.name + " = " + this.body + ";\n" +
- "$p." + this.name + " = " + this.name + ";\n";
- };
-
- function transformGlobalClass(class_) {
- var m = classesRegex.exec(class_); // 1 - attr, 2 - class|int, 3 - name, 4 - extends, 5 - implements, 6 - body
- classesRegex.lastIndex = 0;
- var body = atoms[getAtomIndex(m[6])];
- var oldClassId = currentClassId, newClassId = generateClassId();
- currentClassId = newClassId;
- var globalClass;
- if(m[2] === "interface") {
- globalClass = new AstInterface(m[3], transformInterfaceBody(body, m[3], m[4]) );
- } else {
- globalClass = new AstClass(m[3], transformClassBody(body, m[3], m[4], m[5]) );
- }
- appendClass(globalClass, newClassId, oldClassId);
- currentClassId = oldClassId;
- return globalClass;
- }
-
- function AstMethod(name, params, body) {
- this.name = name;
- this.params = params;
- this.body = body;
- }
- AstMethod.prototype.toString = function(){
- var paramNames = appendToLookupTable({}, this.params.getNames());
- var oldContext = replaceContext;
- replaceContext = function (subject) {
- return paramNames.hasOwnProperty(subject.name) ? subject.name : oldContext(subject);
- };
- var result = "function " + this.name + this.params + " " + this.body + "\n" +
- "$p." + this.name + " = " + this.name + ";";
- replaceContext = oldContext;
- return result;
- };
-
- function transformGlobalMethod(method) {
- var m = methodsRegex.exec(method);
- var result =
- methodsRegex.lastIndex = 0;
- return new AstMethod(m[3], transformParams(atoms[getAtomIndex(m[4])]),
- transformStatementsBlock(atoms[getAtomIndex(m[6])]));
- }
-
- function preStatementsTransform(statements) {
- var s = statements;
- // turns multiple catch blocks into one, because we have no way to properly get into them anyway.
- s = s.replace(/\b(catch\s*"B\d+"\s*"A\d+")(\s*catch\s*"B\d+"\s*"A\d+")+/g, "$1");
- return s;
- }
-
- function AstForStatement(argument, misc) {
- this.argument = argument;
- this.misc = misc;
- }
- AstForStatement.prototype.toString = function() {
- return this.misc.prefix + this.argument.toString();
- };
- function AstCatchStatement(argument, misc) {
- this.argument = argument;
- this.misc = misc;
- }
- AstCatchStatement.prototype.toString = function() {
- return this.misc.prefix + this.argument.toString();
- };
- function AstPrefixStatement(name, argument, misc) {
- this.name = name;
- this.argument = argument;
- this.misc = misc;
- }
- AstPrefixStatement.prototype.toString = function() {
- var result = this.misc.prefix;
- if(this.argument !== undef) {
- result += this.argument.toString();
- }
- return result;
- };
- function AstSwitchCase(expr) {
- this.expr = expr;
- }
- AstSwitchCase.prototype.toString = function() {
- return "case " + this.expr + ":";
- };
- function AstLabel(label) {
- this.label = label;
- }
- AstLabel.prototype.toString = function() {
- return this.label;
- };
-
- transformStatements = function(statements, transformMethod, transformClass) {
- var nextStatement = new RegExp(/\b(catch|for|if|switch|while|with)\s*"B(\d+)"|\b(do|else|finally|return|throw|try|break|continue)\b|("[ADEH](\d+)")|\b(case)\s+([^:]+):|\b([A-Za-z_$][\w$]*\s*:)|(;)/g);
- var res = [];
- statements = preStatementsTransform(statements);
- var lastIndex = 0, m, space;
- // m contains the matches from the nextStatement regexp, null if there are no matches.
- // nextStatement.exec starts searching at nextStatement.lastIndex.
- while((m = nextStatement.exec(statements)) !== null) {
- if(m[1] !== undef) { // catch, for ...
- var i = statements.lastIndexOf('"B', nextStatement.lastIndex);
- var statementsPrefix = statements.substring(lastIndex, i);
- if(m[1] === "for") {
- res.push(new AstForStatement(transformForExpression(atoms[m[2]]),
- { prefix: statementsPrefix }) );
- } else if(m[1] === "catch") {
- res.push(new AstCatchStatement(transformParams(atoms[m[2]]),
- { prefix: statementsPrefix }) );
- } else {
- res.push(new AstPrefixStatement(m[1], transformExpression(atoms[m[2]]),
- { prefix: statementsPrefix }) );
- }
- } else if(m[3] !== undef) { // do, else, ...
- res.push(new AstPrefixStatement(m[3], undef,
- { prefix: statements.substring(lastIndex, nextStatement.lastIndex) }) );
- } else if(m[4] !== undef) { // block, class and methods
- space = statements.substring(lastIndex, nextStatement.lastIndex - m[4].length);
- if(trim(space).length !== 0) { continue; } // avoiding new type[] {} construct
- res.push(space);
- var kind = m[4].charAt(1), atomIndex = m[5];
- if(kind === 'D') {
- res.push(transformMethod(atoms[atomIndex]));
- } else if(kind === 'E') {
- res.push(transformClass(atoms[atomIndex]));
- } else if(kind === 'H') {
- res.push(transformFunction(atoms[atomIndex]));
- } else {
- res.push(transformStatementsBlock(atoms[atomIndex]));
- }
- } else if(m[6] !== undef) { // switch case
- res.push(new AstSwitchCase(transformExpression(trim(m[7]))));
- } else if(m[8] !== undef) { // label
- space = statements.substring(lastIndex, nextStatement.lastIndex - m[8].length);
- if(trim(space).length !== 0) { continue; } // avoiding ?: construct
- res.push(new AstLabel(statements.substring(lastIndex, nextStatement.lastIndex)) );
- } else { // semicolon
- var statement = trimSpaces(statements.substring(lastIndex, nextStatement.lastIndex - 1));
- res.push(statement.left);
- res.push(transformStatement(statement.middle));
- res.push(statement.right + ";");
- }
- lastIndex = nextStatement.lastIndex;
- }
- var statementsTail = trimSpaces(statements.substring(lastIndex));
- res.push(statementsTail.left);
- if(statementsTail.middle !== "") {
- res.push(transformStatement(statementsTail.middle));
- res.push(";" + statementsTail.right);
- }
- return res;
- };
-
- function getLocalNames(statements) {
- var localNames = [];
- for(var i=0,l=statements.length;i 0) {
- for (i = 0, l = interfacesNames.length; i < l; ++i) {
- var interface_ = findInScopes(class_, interfacesNames[i]);
- interfaces.push(interface_);
- if (!interface_) {
- continue;
- }
- if (!interface_.derived) {
- interface_.derived = [];
- }
- interface_.derived.push(class_);
- }
- if (interfaces.length > 0) {
- class_.interfaces = interfaces;
- }
- }
- }
- }
- }
-
- function setWeight(ast) {
- var queue = [], tocheck = {};
- var id, scopeId, class_;
- // queue most inner and non-inherited
- for (id in declaredClasses) {
- if (declaredClasses.hasOwnProperty(id)) {
- class_ = declaredClasses[id];
- if (!class_.inScope && !class_.derived) {
- queue.push(id);
- class_.weight = 0;
- } else {
- var dependsOn = [];
- if (class_.inScope) {
- for (scopeId in class_.inScope) {
- if (class_.inScope.hasOwnProperty(scopeId)) {
- dependsOn.push(class_.inScope[scopeId]);
- }
- }
- }
- if (class_.derived) {
- dependsOn = dependsOn.concat(class_.derived);
- }
- tocheck[id] = dependsOn;
- }
- }
- }
- function removeDependentAndCheck(targetId, from) {
- var dependsOn = tocheck[targetId];
- if (!dependsOn) {
- return false; // no need to process
- }
- var i = dependsOn.indexOf(from);
- if (i < 0) {
- return false;
- }
- dependsOn.splice(i, 1);
- if (dependsOn.length > 0) {
- return false;
- }
- delete tocheck[targetId];
- return true;
- }
- while (queue.length > 0) {
- id = queue.shift();
- class_ = declaredClasses[id];
- if (class_.scopeId && removeDependentAndCheck(class_.scopeId, class_)) {
- queue.push(class_.scopeId);
- declaredClasses[class_.scopeId].weight = class_.weight + 1;
- }
- if (class_.base && removeDependentAndCheck(class_.base.classId, class_)) {
- queue.push(class_.base.classId);
- class_.base.weight = class_.weight + 1;
- }
- if (class_.interfaces) {
- var i, l;
- for (i = 0, l = class_.interfaces.length; i < l; ++i) {
- if (!class_.interfaces[i] ||
- !removeDependentAndCheck(class_.interfaces[i].classId, class_)) {
- continue;
- }
- queue.push(class_.interfaces[i].classId);
- class_.interfaces[i].weight = class_.weight + 1;
- }
- }
- }
- }
-
- var transformed = transformMain();
- generateMetadata(transformed);
- setWeight(transformed);
-
- var redendered = transformed.toString();
-
- // remove empty extra lines with space
- redendered = redendered.replace(/\s*\n(?:[\t ]*\n)+/g, "\n\n");
-
- return injectStrings(redendered, strings);
- }// Parser ends
-
- function preprocessCode(aCode, sketch) {
- // Parse out @pjs directive, if any.
- var dm = new RegExp(/\/\*\s*@pjs\s+((?:[^\*]|\*+[^\*\/])*)\*\//g).exec(aCode);
- if (dm && dm.length === 2) {
- // masks contents of a JSON to be replaced later
- // to protect the contents from further parsing
- var jsonItems = [],
- directives = dm.splice(1, 2)[0].replace(/\{([\s\S]*?)\}/g, (function() {
- return function(all, item) {
- jsonItems.push(item);
- return "{" + (jsonItems.length-1) + "}";
- };
- }())).replace('\n', '').replace('\r', '').split(";");
-
- // We'll L/RTrim, and also remove any surrounding double quotes (e.g., just take string contents)
- var clean = function(s) {
- return s.replace(/^\s*["']?/, '').replace(/["']?\s*$/, '');
- };
-
- for (var i = 0, dl = directives.length; i < dl; i++) {
- var pair = directives[i].split('=');
- if (pair && pair.length === 2) {
- var key = clean(pair[0]),
- value = clean(pair[1]),
- list = [];
- // A few directives require work beyond storying key/value pairings
- if (key === "preload") {
- list = value.split(',');
- // All pre-loaded images will get put in imageCache, keyed on filename
- for (var j = 0, jl = list.length; j < jl; j++) {
- var imageName = clean(list[j]);
- sketch.imageCache.add(imageName);
- }
- // fonts can be declared as a string containing a url,
- // or a JSON object, containing a font name, and a url
- } else if (key === "font") {
- list = value.split(",");
- for (var x = 0, xl = list.length; x < xl; x++) {
- var fontName = clean(list[x]),
- index = /^\{(\d*?)\}$/.exec(fontName);
- // if index is not null, send JSON, otherwise, send string
- PFont.preloading.add(index ? JSON.parse("{" + jsonItems[index[1]] + "}") : fontName);
- }
- } else if (key === "pauseOnBlur") {
- sketch.options.pauseOnBlur = value === "true";
- } else if (key === "globalKeyEvents") {
- sketch.options.globalKeyEvents = value === "true";
- } else if (key.substring(0, 6) === "param-") {
- sketch.params[key.substring(6)] = value;
- } else {
- sketch.options[key] = value;
- }
- }
- }
- }
- return aCode;
- }
-
- // Parse/compiles Processing (Java-like) syntax to JavaScript syntax
- Processing.compile = function(pdeCode) {
- var sketch = new Processing.Sketch();
- var code = preprocessCode(pdeCode, sketch);
- var compiledPde = parseProcessing(code);
- sketch.sourceCode = compiledPde;
- return sketch;
- };
-//#endif
-
- // tinylog lite JavaScript library
- // http://purl.eligrey.com/tinylog/lite
- /*global tinylog,print*/
- var tinylogLite = (function() {
- "use strict";
-
- var tinylogLite = {},
- undef = "undefined",
- func = "function",
- False = !1,
- True = !0,
- logLimit = 512,
- log = "log";
-
- if (typeof tinylog !== undef && typeof tinylog[log] === func) {
- // pre-existing tinylog present
- tinylogLite[log] = tinylog[log];
- } else if (typeof document !== undef && !document.fake) {
- (function() {
- // DOM document
- var doc = document,
-
- $div = "div",
- $style = "style",
- $title = "title",
-
- containerStyles = {
- zIndex: 10000,
- position: "fixed",
- bottom: "0px",
- width: "100%",
- height: "15%",
- fontFamily: "sans-serif",
- color: "#ccc",
- backgroundColor: "black"
- },
- outputStyles = {
- position: "relative",
- fontFamily: "monospace",
- overflow: "auto",
- height: "100%",
- paddingTop: "5px"
- },
- resizerStyles = {
- height: "5px",
- marginTop: "-5px",
- cursor: "n-resize",
- backgroundColor: "darkgrey"
- },
- closeButtonStyles = {
- position: "absolute",
- top: "5px",
- right: "20px",
- color: "#111",
- MozBorderRadius: "4px",
- webkitBorderRadius: "4px",
- borderRadius: "4px",
- cursor: "pointer",
- fontWeight: "normal",
- textAlign: "center",
- padding: "3px 5px",
- backgroundColor: "#333",
- fontSize: "12px"
- },
- entryStyles = {
- //borderBottom: "1px solid #d3d3d3",
- minHeight: "16px"
- },
- entryTextStyles = {
- fontSize: "12px",
- margin: "0 8px 0 8px",
- maxWidth: "100%",
- whiteSpace: "pre-wrap",
- overflow: "auto"
- },
-
- view = doc.defaultView,
- docElem = doc.documentElement,
- docElemStyle = docElem[$style],
-
- setStyles = function() {
- var i = arguments.length,
- elemStyle, styles, style;
-
- while (i--) {
- styles = arguments[i--];
- elemStyle = arguments[i][$style];
-
- for (style in styles) {
- if (styles.hasOwnProperty(style)) {
- elemStyle[style] = styles[style];
- }
- }
- }
- },
-
- observer = function(obj, event, handler) {
- if (obj.addEventListener) {
- obj.addEventListener(event, handler, False);
- } else if (obj.attachEvent) {
- obj.attachEvent("on" + event, handler);
- }
- return [obj, event, handler];
- },
- unobserve = function(obj, event, handler) {
- if (obj.removeEventListener) {
- obj.removeEventListener(event, handler, False);
- } else if (obj.detachEvent) {
- obj.detachEvent("on" + event, handler);
- }
- },
- clearChildren = function(node) {
- var children = node.childNodes,
- child = children.length;
-
- while (child--) {
- node.removeChild(children.item(0));
- }
- },
- append = function(to, elem) {
- return to.appendChild(elem);
- },
- createElement = function(localName) {
- return doc.createElement(localName);
- },
- createTextNode = function(text) {
- return doc.createTextNode(text);
- },
-
- createLog = tinylogLite[log] = function(message) {
- // don't show output log until called once
- var uninit,
- originalPadding = docElemStyle.paddingBottom,
- container = createElement($div),
- containerStyle = container[$style],
- resizer = append(container, createElement($div)),
- output = append(container, createElement($div)),
- closeButton = append(container, createElement($div)),
- resizingLog = False,
- previousHeight = False,
- previousScrollTop = False,
- messages = 0,
-
- updateSafetyMargin = function() {
- // have a blank space large enough to fit the output box at the page bottom
- docElemStyle.paddingBottom = container.clientHeight + "px";
- },
- setContainerHeight = function(height) {
- var viewHeight = view.innerHeight,
- resizerHeight = resizer.clientHeight;
-
- // constrain the container inside the viewport's dimensions
- if (height < 0) {
- height = 0;
- } else if (height + resizerHeight > viewHeight) {
- height = viewHeight - resizerHeight;
- }
-
- containerStyle.height = height / viewHeight * 100 + "%";
-
- updateSafetyMargin();
- },
- observers = [
- observer(doc, "mousemove", function(evt) {
- if (resizingLog) {
- setContainerHeight(view.innerHeight - evt.clientY);
- output.scrollTop = previousScrollTop;
- }
- }),
-
- observer(doc, "mouseup", function() {
- if (resizingLog) {
- resizingLog = previousScrollTop = False;
- }
- }),
-
- observer(resizer, "dblclick", function(evt) {
- evt.preventDefault();
-
- if (previousHeight) {
- setContainerHeight(previousHeight);
- previousHeight = False;
- } else {
- previousHeight = container.clientHeight;
- containerStyle.height = "0px";
- }
- }),
-
- observer(resizer, "mousedown", function(evt) {
- evt.preventDefault();
- resizingLog = True;
- previousScrollTop = output.scrollTop;
- }),
-
- observer(resizer, "contextmenu", function() {
- resizingLog = False;
- }),
-
- observer(closeButton, "click", function() {
- uninit();
- })
- ];
-
- uninit = function() {
- // remove observers
- var i = observers.length;
-
- while (i--) {
- unobserve.apply(tinylogLite, observers[i]);
- }
-
- // remove tinylog lite from the DOM
- docElem.removeChild(container);
- docElemStyle.paddingBottom = originalPadding;
-
- clearChildren(output);
- clearChildren(container);
-
- tinylogLite[log] = createLog;
- };
-
- setStyles(
- container, containerStyles, output, outputStyles, resizer, resizerStyles, closeButton, closeButtonStyles);
-
- closeButton[$title] = "Close Log";
- append(closeButton, createTextNode("\u2716"));
-
- resizer[$title] = "Double-click to toggle log minimization";
-
- docElem.insertBefore(container, docElem.firstChild);
-
- tinylogLite[log] = function(message) {
- if (messages === logLimit) {
- output.removeChild(output.firstChild);
- } else {
- messages++;
- }
-
- var entry = append(output, createElement($div)),
- entryText = append(entry, createElement($div));
-
- entry[$title] = (new Date()).toLocaleTimeString();
-
- setStyles(
- entry, entryStyles, entryText, entryTextStyles);
-
- append(entryText, createTextNode(message));
- output.scrollTop = output.scrollHeight;
- };
-
- tinylogLite[log](message);
- updateSafetyMargin();
- };
- }());
- } else if (typeof print === func) { // JS shell
- tinylogLite[log] = print;
- }
-
- return tinylogLite;
- }());
- // end of tinylog lite JavaScript library
-
- Processing.logger = tinylogLite;
-
- Processing.version = "@VERSION@";
-
- // Share lib space
- Processing.lib = {};
-
- Processing.registerLibrary = function(name, desc) {
- Processing.lib[name] = desc;
-
- if(desc.hasOwnProperty("init")) {
- desc.init(defaultScope);
- }
- };
-
- // Store Processing instances. Only Processing.instances,
- // Processing.getInstanceById are exposed.
- Processing.instances = processingInstances;
-
- Processing.getInstanceById = function(name) {
- return processingInstances[processingInstanceIds[name]];
- };
-
- Processing.Sketch = function(attachFunction) {
- this.attachFunction = attachFunction; // can be optional
- this.options = {
- pauseOnBlur: false,
- globalKeyEvents: false
- };
-
- /* Optional Sketch event hooks:
- * onLoad - parsing/preloading is done, before sketch starts
- * onSetup - setup() has been called, before first draw()
- * onPause - noLoop() has been called, pausing draw loop
- * onLoop - loop() has been called, resuming draw loop
- * onFrameStart - draw() loop about to begin
- * onFrameEnd - draw() loop finished
- * onExit - exit() done being called
- */
- this.onLoad = nop;
- this.onSetup = nop;
- this.onPause = nop;
- this.onLoop = nop;
- this.onFrameStart = nop;
- this.onFrameEnd = nop;
- this.onExit = nop;
-
- this.params = {};
- this.imageCache = {
- pending: 0,
- images: {},
- // Opera requires special administration for preloading
- operaCache: {},
- // Specify an optional img arg if the image is already loaded in the DOM,
- // otherwise href will get loaded.
- add: function(href, img) {
- // Prevent muliple loads for an image, in case it gets
- // preloaded more than once, or is added via JS and then preloaded.
- if (this.images[href]) {
- return;
- }
-
- if (!isDOMPresent) {
- this.images[href] = null;
- }
-
- // No image in the DOM, kick-off a background load
- if (!img) {
- img = new Image();
- img.onload = (function(owner) {
- return function() {
- owner.pending--;
- };
- }(this));
- this.pending++;
- img.src = href;
- }
-
- this.images[href] = img;
-
- // Opera will not load images until they are inserted into the DOM.
- if (window.opera) {
- var div = document.createElement("div");
- div.appendChild(img);
- // we can't use "display: none", since that makes it invisible, and thus not load
- div.style.position = "absolute";
- div.style.opacity = 0;
- div.style.width = "1px";
- div.style.height= "1px";
- if (!this.operaCache[href]) {
- document.body.appendChild(div);
- this.operaCache[href] = div;
- }
- }
- }
- };
- this.sourceCode = undefined;
- this.attach = function(processing) {
- // either attachFunction or sourceCode must be present on attach
- if(typeof this.attachFunction === "function") {
- this.attachFunction(processing);
- } else if(this.sourceCode) {
- var func = ((new Function("return (" + this.sourceCode + ");"))());
- func(processing);
- this.attachFunction = func;
- } else {
- throw "Unable to attach sketch to the processing instance";
- }
- };
-//#if PARSER
- this.toString = function() {
- var i;
- var code = "((function(Sketch) {\n";
- code += "var sketch = new Sketch(\n" + this.sourceCode + ");\n";
- for(i in this.options) {
- if(this.options.hasOwnProperty(i)) {
- var value = this.options[i];
- code += "sketch.options." + i + " = " +
- (typeof value === 'string' ? '\"' + value + '\"' : "" + value) + ";\n";
- }
- }
- for(i in this.imageCache) {
- if(this.options.hasOwnProperty(i)) {
- code += "sketch.imageCache.add(\"" + i + "\");\n";
- }
- }
- // TODO serialize fonts
- code += "return sketch;\n})(Processing.Sketch))";
- return code;
- };
-//#endif
- };
-
-//#if PARSER
- /**
- * aggregate all source code into a single file, then rewrite that
- * source and bind to canvas via new Processing(canvas, sourcestring).
- * @param {CANVAS} canvas The html canvas element to bind to
- * @param {String[]} source The array of files that must be loaded
- */
- var loadSketchFromSources = function(canvas, sources) {
- var code = [], errors = [], sourcesCount = sources.length, loaded = 0;
-
- function ajaxAsync(url, callback) {
- var xhr = new XMLHttpRequest();
- xhr.onreadystatechange = function() {
- if (xhr.readyState === 4) {
- var error;
- if (xhr.status !== 200 && xhr.status !== 0) {
- error = "Invalid XHR status " + xhr.status;
- } else if (xhr.responseText === "") {
- // Give a hint when loading fails due to same-origin issues on file:/// urls
- if ( ("withCredentials" in new XMLHttpRequest()) &&
- (new XMLHttpRequest()).withCredentials === false &&
- window.location.protocol === "file:" ) {
- error = "XMLHttpRequest failure, possibly due to a same-origin policy violation. You can try loading this page in another browser, or load it from http://localhost using a local webserver. See the Processing.js README for a more detailed explanation of this problem and solutions.";
- } else {
- error = "File is empty.";
- }
- }
-
- callback(xhr.responseText, error);
- }
- };
- xhr.open("GET", url, true);
- if (xhr.overrideMimeType) {
- xhr.overrideMimeType("application/json");
- }
- xhr.setRequestHeader("If-Modified-Since", "Fri, 01 Jan 1960 00:00:00 GMT"); // no cache
- xhr.send(null);
- }
-
- function loadBlock(index, filename) {
- function callback(block, error) {
- code[index] = block;
- ++loaded;
- if (error) {
- errors.push(filename + " ==> " + error);
- }
- if (loaded === sourcesCount) {
- if (errors.length === 0) {
- try {
- return new Processing(canvas, code.join("\n"));
- } catch(e) {
- throw "Processing.js: Unable to execute pjs sketch: " + e;
- }
- } else {
- throw "Processing.js: Unable to load pjs sketch files: " + errors.join("\n");
- }
- }
- }
- if (filename.charAt(0) === '#') {
- // trying to get script from the element
- var scriptElement = document.getElementById(filename.substring(1));
- if (scriptElement) {
- callback(scriptElement.text || scriptElement.textContent);
- } else {
- callback("", "Unable to load pjs sketch: element with id \'" + filename.substring(1) + "\' was not found");
- }
- return;
- }
-
- ajaxAsync(filename, callback);
- }
-
- for (var i = 0; i < sourcesCount; ++i) {
- loadBlock(i, sources[i]);
- }
- };
-
- /**
- * Automatic initialization function.
- */
- var init = function() {
- document.removeEventListener('DOMContentLoaded', init, false);
-
- var canvas = document.getElementsByTagName('canvas'),
- filenames;
-
- for (var i = 0, l = canvas.length; i < l; i++) {
- // datasrc and data-src are deprecated.
- var processingSources = canvas[i].getAttribute('data-processing-sources');
- if (processingSources === null) {
- // Temporary fallback for datasrc and data-src
- processingSources = canvas[i].getAttribute('data-src');
- if (processingSources === null) {
- processingSources = canvas[i].getAttribute('datasrc');
- }
- }
- if (processingSources) {
- filenames = processingSources.split(' ');
- for (var j = 0; j < filenames.length;) {
- if (filenames[j]) {
- j++;
- } else {
- filenames.splice(j, 1);
- }
- }
- loadSketchFromSources(canvas[i], filenames);
- }
- }
-
- // also process all