| /* |
| ** Copyright (c) 2016 The Khronos Group Inc. |
| ** |
| ** Permission is hereby granted, free of charge, to any person obtaining a |
| ** copy of this software and/or associated documentation files (the |
| ** "Materials"), to deal in the Materials without restriction, including |
| ** without limitation the rights to use, copy, modify, merge, publish, |
| ** distribute, sublicense, and/or sell copies of the Materials, and to |
| ** permit persons to whom the Materials are furnished to do so, subject to |
| ** the following conditions: |
| ** |
| ** The above copyright notice and this permission notice shall be included |
| ** in all copies or substantial portions of the Materials. |
| ** |
| ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| */ |
| |
| function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) { |
| var wtu = WebGLTestUtils; |
| var tiu = TexImageUtils; |
| var gl = null; |
| var successfullyParsed = false; |
| var realRedColor = [255, 0, 0]; |
| var realGreenColor = [0, 255, 0]; |
| var realBlueColor = [0, 0, 255]; |
| var realCyanColor = [0, 255, 255]; |
| var redColor = [255, 0, 0]; |
| var greenColor = [0, 255, 0]; |
| var blueColor = [0, 0, 255]; |
| var cyanColor = [0, 255, 255]; |
| |
| function init() |
| { |
| description('Verify texImage3D and texSubImage3D code paths taking a sub-rectangle of a canvas (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')'); |
| |
| // Set the default context version while still allowing the webglVersion URL query string to override it. |
| wtu.setDefault3DContextVersion(defaultContextVersion); |
| gl = wtu.create3DContext("example"); |
| |
| if (!prologue(gl)) { |
| finishTest(); |
| return; |
| } |
| |
| switch (gl[pixelFormat]) { |
| case gl.RED: |
| case gl.RED_INTEGER: |
| greenColor = [0, 0, 0]; |
| blueColor = [0, 0, 0]; |
| cyanColor = [0, 0, 0]; |
| break; |
| |
| case gl.RG: |
| case gl.RG_INTEGER: |
| blueColor = [0, 0, 0]; |
| cyanColor = [0, 255, 0]; |
| break; |
| |
| default: |
| break; |
| } |
| |
| gl.clearColor(0,0,0,1); |
| gl.clearDepth(1); |
| |
| var canvas2d = document.createElement('canvas'); |
| runTest(canvas2d, setupSourceCanvas2D, '2D-rendered canvas'); |
| |
| var canvasWebGL = document.createElement('canvas'); |
| runTest(canvasWebGL, setupSourceCanvasWebGL, 'WebGL-rendered canvas'); |
| |
| finishTest(); |
| } |
| |
| function uploadCanvasToTexture(canvas, useTexSubImage3D, flipY, bindingTarget, |
| depth, sourceSubRectangle, unpackImageHeight) |
| { |
| gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| // Disable any writes to the alpha channel |
| gl.colorMask(1, 1, 1, 0); |
| var texture = gl.createTexture(); |
| // Bind the texture to texture unit 0 |
| gl.bindTexture(bindingTarget, texture); |
| // Set up texture parameters |
| gl.texParameteri(bindingTarget, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| gl.texParameteri(bindingTarget, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE); |
| // Set up pixel store parameters |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE); |
| var uploadWidth = canvas.width; |
| var uploadHeight = canvas.height; |
| if (sourceSubRectangle) { |
| gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, sourceSubRectangle[0]); |
| gl.pixelStorei(gl.UNPACK_SKIP_ROWS, sourceSubRectangle[1]); |
| uploadWidth = sourceSubRectangle[2]; |
| uploadHeight = sourceSubRectangle[3]; |
| } |
| if (unpackImageHeight) { |
| gl.pixelStorei(gl.UNPACK_IMAGE_HEIGHT, unpackImageHeight); |
| } |
| // Upload the image into the texture |
| if (useTexSubImage3D) { |
| // Initialize the texture to black first |
| gl.texImage3D(bindingTarget, 0, gl[internalFormat], uploadWidth, uploadHeight, depth, 0, |
| gl[pixelFormat], gl[pixelType], null); |
| gl.texSubImage3D(bindingTarget, 0, 0, 0, 0, uploadWidth, uploadHeight, depth, |
| gl[pixelFormat], gl[pixelType], canvas); |
| } else { |
| gl.texImage3D(bindingTarget, 0, gl[internalFormat], uploadWidth, uploadHeight, depth, 0, |
| gl[pixelFormat], gl[pixelType], canvas); |
| } |
| gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, 0); |
| gl.pixelStorei(gl.UNPACK_SKIP_ROWS, 0); |
| gl.pixelStorei(gl.UNPACK_IMAGE_HEIGHT, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from texture upload"); |
| } |
| |
| function fillStyle2D(ctx, color) { |
| ctx.fillStyle = 'rgb(' + color[0] + ', ' + color[1] + ', ' + color[2] + ')'; |
| } |
| |
| function setupSourceCanvas2D(canvas) { |
| var width = canvas.width; |
| var height = canvas.height; |
| var halfWidth = Math.floor(width / 2); |
| var halfHeight = Math.floor(height / 2); |
| |
| var ctx = canvas.getContext('2d'); |
| // Always use the same pattern for this test: four quadrants: |
| // red green |
| // blue cyan |
| // Handle odd-sized canvases |
| fillStyle2D(ctx, realRedColor); |
| ctx.fillRect(0, 0, halfWidth, halfHeight); |
| fillStyle2D(ctx, realGreenColor); |
| ctx.fillRect(halfWidth, 0, width - halfWidth, halfHeight); |
| fillStyle2D(ctx, realBlueColor); |
| ctx.fillRect(0, halfHeight, halfWidth, height - halfHeight); |
| fillStyle2D(ctx, realCyanColor); |
| ctx.fillRect(halfWidth, halfHeight, width - halfWidth, height - halfHeight); |
| } |
| |
| function clearColorWebGL(ctx, color) { |
| ctx.clearColor(color[0] / 255.0, color[1] / 255.0, color[2] / 255.0, 1.0); |
| ctx.clear(ctx.COLOR_BUFFER_BIT); |
| } |
| |
| function setupSourceCanvasWebGL(canvas) { |
| var width = canvas.width; |
| var height = canvas.height; |
| var halfWidth = Math.floor(width / 2); |
| var halfHeight = Math.floor(height / 2); |
| |
| var ctx = canvas.getContext('webgl'); |
| // Always use the same pattern for this test: four quadrants: |
| // red green |
| // blue cyan |
| // Handle odd-sized canvases |
| |
| ctx.viewport(0, 0, width, height); |
| ctx.enable(ctx.SCISSOR_TEST); |
| // OpenGL origin is lower-left |
| ctx.scissor(0, 0, halfWidth, halfHeight); |
| clearColorWebGL(ctx, realBlueColor); |
| ctx.scissor(halfWidth, 0, width - halfWidth, halfHeight); |
| clearColorWebGL(ctx, realCyanColor); |
| ctx.scissor(0, halfHeight, halfWidth, height - halfHeight); |
| clearColorWebGL(ctx, realRedColor); |
| ctx.scissor(halfWidth, halfHeight, width - halfWidth, height - halfHeight); |
| clearColorWebGL(ctx, realGreenColor); |
| } |
| |
| function runOneIteration(canvas, useTexSubImage3D, flipY, bindingTarget, |
| depth, sourceSubRectangle, unpackImageHeight, |
| rTextureCoord, expectedColor, program, |
| canvasSize, canvasSetupFunction, sourceDescription) |
| { |
| debug(''); |
| debug('Testing ' + sourceDescription + ' with ' + |
| (useTexSubImage3D ? 'texSubImage3D' : 'texImage3D') + |
| ', flipY=' + flipY + ', bindingTarget=' + |
| (bindingTarget == gl.TEXTURE_3D ? 'TEXTURE_3D' : 'TEXTURE_2D_ARRAY') + |
| ', sourceSubRectangle=' + sourceSubRectangle + |
| ', depth=' + depth + |
| (unpackImageHeight ? ', unpackImageHeight=' + unpackImageHeight : '') + |
| ', rTextureCoord=' + rTextureCoord); |
| |
| // Initialize the contents of the source canvas. |
| var width = canvasSize[0]; |
| var height = canvasSize[1]; |
| var halfWidth = Math.floor(width / 2); |
| var halfHeight = Math.floor(height / 2); |
| canvas.width = width; |
| canvas.height = height; |
| canvasSetupFunction(canvas); |
| |
| uploadCanvasToTexture(canvas, useTexSubImage3D, flipY, bindingTarget, |
| depth, sourceSubRectangle, unpackImageHeight); |
| var rCoordLocation = gl.getUniformLocation(program, 'uRCoord'); |
| if (!rCoordLocation) { |
| testFailed('Shader incorrectly set up; couldn\'t find uRCoord uniform'); |
| return; |
| } |
| gl.uniform1f(rCoordLocation, rTextureCoord); |
| |
| // Draw the triangles |
| wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]); |
| // Check the rendered canvas |
| wtu.checkCanvasRect(gl, 0, 0, canvasSize[0], canvasSize[1], expectedColor, "shouldBe " + expectedColor); |
| } |
| |
| function runTest(canvas, canvasSetupFunction, sourceDescription) |
| { |
| var cases = [ |
| // Small canvas cases. Expected that these won't be |
| // GPU-accelerated in most browsers' implementations. |
| |
| // No UNPACK_IMAGE_HEIGHT specified. |
| { expected: redColor, flipY: false, size: [4, 4], subRect: [0, 0, 2, 2], depth: 2, rTextureCoord: 0.0 }, |
| { expected: blueColor, flipY: false, size: [4, 4], subRect: [0, 0, 2, 2], depth: 2, rTextureCoord: 1.0 }, |
| { expected: blueColor, flipY: true, size: [4, 4], subRect: [0, 0, 2, 2], depth: 2, rTextureCoord: 0.0 }, |
| { expected: redColor, flipY: true, size: [4, 4], subRect: [0, 0, 2, 2], depth: 2, rTextureCoord: 1.0 }, |
| { expected: greenColor, flipY: false, size: [4, 4], subRect: [2, 0, 2, 2], depth: 2, rTextureCoord: 0.0 }, |
| { expected: cyanColor, flipY: false, size: [4, 4], subRect: [2, 0, 2, 2], depth: 2, rTextureCoord: 1.0 }, |
| { expected: cyanColor, flipY: true, size: [4, 4], subRect: [2, 0, 2, 2], depth: 2, rTextureCoord: 0.0 }, |
| { expected: greenColor, flipY: true, size: [4, 4], subRect: [2, 0, 2, 2], depth: 2, rTextureCoord: 1.0 }, |
| |
| // Use UNPACK_IMAGE_HEIGHT to skip some pixels. |
| { expected: redColor, flipY: false, size: [4, 4], subRect: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0 }, |
| { expected: blueColor, flipY: false, size: [4, 4], subRect: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0 }, |
| { expected: blueColor, flipY: true, size: [4, 4], subRect: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0 }, |
| { expected: redColor, flipY: true, size: [4, 4], subRect: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0 }, |
| { expected: greenColor, flipY: false, size: [4, 4], subRect: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0 }, |
| { expected: cyanColor, flipY: false, size: [4, 4], subRect: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0 }, |
| { expected: cyanColor, flipY: true, size: [4, 4], subRect: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0 }, |
| { expected: greenColor, flipY: true, size: [4, 4], subRect: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0 }, |
| |
| // Larger canvas cases. Expected that these will be |
| // GPU-accelerated in most browsers' implementations. |
| // Changes will be gladly accepted to trigger more |
| // browsers' heuristics to accelerate these canvases. |
| |
| // No UNPACK_IMAGE_HEIGHT specified. |
| { expected: redColor, flipY: false, size: [384, 384], subRect: [0, 0, 192, 192], depth: 2, rTextureCoord: 0.0 }, |
| { expected: blueColor, flipY: false, size: [384, 384], subRect: [0, 0, 192, 192], depth: 2, rTextureCoord: 1.0 }, |
| { expected: blueColor, flipY: true, size: [384, 384], subRect: [0, 0, 192, 192], depth: 2, rTextureCoord: 0.0 }, |
| { expected: redColor, flipY: true, size: [384, 384], subRect: [0, 0, 192, 192], depth: 2, rTextureCoord: 1.0 }, |
| { expected: greenColor, flipY: false, size: [384, 384], subRect: [192, 0, 192, 192], depth: 2, rTextureCoord: 0.0 }, |
| { expected: cyanColor, flipY: false, size: [384, 384], subRect: [192, 0, 192, 192], depth: 2, rTextureCoord: 1.0 }, |
| { expected: cyanColor, flipY: true, size: [384, 384], subRect: [192, 0, 192, 192], depth: 2, rTextureCoord: 0.0 }, |
| { expected: greenColor, flipY: true, size: [384, 384], subRect: [192, 0, 192, 192], depth: 2, rTextureCoord: 1.0 }, |
| |
| // Use UNPACK_IMAGE_HEIGHT to skip some pixels. |
| { expected: redColor, flipY: false, size: [384, 384], subRect: [0, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 0.0 }, |
| { expected: blueColor, flipY: false, size: [384, 384], subRect: [0, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 1.0 }, |
| { expected: blueColor, flipY: true, size: [384, 384], subRect: [0, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 0.0 }, |
| { expected: redColor, flipY: true, size: [384, 384], subRect: [0, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 1.0 }, |
| { expected: greenColor, flipY: false, size: [384, 384], subRect: [192, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 0.0 }, |
| { expected: cyanColor, flipY: false, size: [384, 384], subRect: [192, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 1.0 }, |
| { expected: cyanColor, flipY: true, size: [384, 384], subRect: [192, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 0.0 }, |
| { expected: greenColor, flipY: true, size: [384, 384], subRect: [192, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 1.0 }, |
| ]; |
| |
| var program = tiu.setupTexturedQuadWith3D(gl, internalFormat); |
| for (var i in cases) { |
| runOneIteration(canvas, false, cases[i].flipY, gl.TEXTURE_3D, |
| cases[i].depth, cases[i].subRect, |
| cases[i].unpackImageHeight, cases[i].rTextureCoord, |
| cases[i].expected, |
| program, cases[i].size, canvasSetupFunction, sourceDescription); |
| runOneIteration(canvas, true, cases[i].flipY, gl.TEXTURE_3D, |
| cases[i].depth, cases[i].subRect, |
| cases[i].unpackImageHeight, cases[i].rTextureCoord, |
| cases[i].expected, |
| program, cases[i].size, canvasSetupFunction, sourceDescription); |
| } |
| |
| program = tiu.setupTexturedQuadWith2DArray(gl, internalFormat); |
| for (var i in cases) { |
| runOneIteration(canvas, false, cases[i].flipY, gl.TEXTURE_2D_ARRAY, |
| cases[i].depth, cases[i].subRect, |
| cases[i].unpackImageHeight, cases[i].rTextureCoord, |
| cases[i].expected, |
| program, cases[i].size, canvasSetupFunction, sourceDescription); |
| runOneIteration(canvas, true, cases[i].flipY, gl.TEXTURE_2D_ARRAY, |
| cases[i].depth, cases[i].subRect, |
| cases[i].unpackImageHeight, cases[i].rTextureCoord, |
| cases[i].expected, |
| program, cases[i].size, canvasSetupFunction, sourceDescription); |
| } |
| } |
| |
| return init; |
| } |