287 lines
15 KiB
JavaScript
287 lines
15 KiB
JavaScript
/*
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Copyright (c) 2019 The Khronos Group Inc.
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Use of this source code is governed by an MIT-style license that can be
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found in the LICENSE.txt file.
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*/
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function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) {
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var wtu = WebGLTestUtils;
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var tiu = TexImageUtils;
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var gl = null;
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var successfullyParsed = false;
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var realRedColor = [255, 0, 0];
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var realGreenColor = [0, 255, 0];
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var realBlueColor = [0, 0, 255];
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var realCyanColor = [0, 255, 255];
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var redColor = [255, 0, 0];
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var greenColor = [0, 255, 0];
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var blueColor = [0, 0, 255];
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var cyanColor = [0, 255, 255];
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function init()
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{
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description('Verify texImage3D and texSubImage3D code paths taking a sub-rectangle of a canvas (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')');
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// Set the default context version while still allowing the webglVersion URL query string to override it.
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wtu.setDefault3DContextVersion(defaultContextVersion);
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gl = wtu.create3DContext("example");
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if (!prologue(gl)) {
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finishTest();
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return;
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}
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switch (gl[pixelFormat]) {
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case gl.RED:
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case gl.RED_INTEGER:
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greenColor = [0, 0, 0];
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blueColor = [0, 0, 0];
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cyanColor = [0, 0, 0];
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break;
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case gl.RG:
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case gl.RG_INTEGER:
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blueColor = [0, 0, 0];
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cyanColor = [0, 255, 0];
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break;
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default:
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break;
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}
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gl.clearColor(0,0,0,1);
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gl.clearDepth(1);
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var canvas2d = document.createElement('canvas');
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runTest(canvas2d, setupSourceCanvas2D, '2D-rendered canvas');
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var canvasWebGL = document.createElement('canvas');
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runTest(canvasWebGL, setupSourceCanvasWebGL, 'WebGL-rendered canvas');
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finishTest();
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}
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function uploadCanvasToTexture(canvas, useTexSubImage3D, flipY, bindingTarget,
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depth, sourceSubRectangle, unpackImageHeight)
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{
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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// Disable any writes to the alpha channel
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gl.colorMask(1, 1, 1, 0);
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var texture = gl.createTexture();
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// Bind the texture to texture unit 0
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gl.bindTexture(bindingTarget, texture);
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// Set up texture parameters
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gl.texParameteri(bindingTarget, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
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gl.texParameteri(bindingTarget, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
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gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
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gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
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gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE);
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// Set up pixel store parameters
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gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
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gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
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gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);
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var uploadWidth = canvas.width;
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var uploadHeight = canvas.height;
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if (sourceSubRectangle) {
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gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, sourceSubRectangle[0]);
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gl.pixelStorei(gl.UNPACK_SKIP_ROWS, sourceSubRectangle[1]);
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uploadWidth = sourceSubRectangle[2];
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uploadHeight = sourceSubRectangle[3];
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}
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if (unpackImageHeight) {
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gl.pixelStorei(gl.UNPACK_IMAGE_HEIGHT, unpackImageHeight);
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}
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// Upload the image into the texture
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if (useTexSubImage3D) {
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// Initialize the texture to black first
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gl.texImage3D(bindingTarget, 0, gl[internalFormat], uploadWidth, uploadHeight, depth, 0,
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gl[pixelFormat], gl[pixelType], null);
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gl.texSubImage3D(bindingTarget, 0, 0, 0, 0, uploadWidth, uploadHeight, depth,
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gl[pixelFormat], gl[pixelType], canvas);
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} else {
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gl.texImage3D(bindingTarget, 0, gl[internalFormat], uploadWidth, uploadHeight, depth, 0,
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gl[pixelFormat], gl[pixelType], canvas);
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}
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gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, 0);
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gl.pixelStorei(gl.UNPACK_SKIP_ROWS, 0);
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gl.pixelStorei(gl.UNPACK_IMAGE_HEIGHT, 0);
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wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from texture upload");
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}
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function fillStyle2D(ctx, color) {
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ctx.fillStyle = 'rgb(' + color[0] + ', ' + color[1] + ', ' + color[2] + ')';
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}
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function setupSourceCanvas2D(canvas) {
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var width = canvas.width;
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var height = canvas.height;
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var halfWidth = Math.floor(width / 2);
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var halfHeight = Math.floor(height / 2);
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var ctx = canvas.getContext('2d');
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// Always use the same pattern for this test: four quadrants:
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// red green
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// blue cyan
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// Handle odd-sized canvases
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fillStyle2D(ctx, realRedColor);
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ctx.fillRect(0, 0, halfWidth, halfHeight);
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fillStyle2D(ctx, realGreenColor);
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ctx.fillRect(halfWidth, 0, width - halfWidth, halfHeight);
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fillStyle2D(ctx, realBlueColor);
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ctx.fillRect(0, halfHeight, halfWidth, height - halfHeight);
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fillStyle2D(ctx, realCyanColor);
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ctx.fillRect(halfWidth, halfHeight, width - halfWidth, height - halfHeight);
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}
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function clearColorWebGL(ctx, color) {
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ctx.clearColor(color[0] / 255.0, color[1] / 255.0, color[2] / 255.0, 1.0);
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ctx.clear(ctx.COLOR_BUFFER_BIT);
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}
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function setupSourceCanvasWebGL(canvas) {
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var width = canvas.width;
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var height = canvas.height;
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var halfWidth = Math.floor(width / 2);
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var halfHeight = Math.floor(height / 2);
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var ctx = canvas.getContext('webgl');
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// Always use the same pattern for this test: four quadrants:
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// red green
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// blue cyan
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// Handle odd-sized canvases
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ctx.viewport(0, 0, width, height);
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ctx.enable(ctx.SCISSOR_TEST);
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// OpenGL origin is lower-left
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ctx.scissor(0, 0, halfWidth, halfHeight);
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clearColorWebGL(ctx, realBlueColor);
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ctx.scissor(halfWidth, 0, width - halfWidth, halfHeight);
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clearColorWebGL(ctx, realCyanColor);
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ctx.scissor(0, halfHeight, halfWidth, height - halfHeight);
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clearColorWebGL(ctx, realRedColor);
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ctx.scissor(halfWidth, halfHeight, width - halfWidth, height - halfHeight);
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clearColorWebGL(ctx, realGreenColor);
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}
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function runOneIteration(canvas, useTexSubImage3D, flipY, bindingTarget,
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depth, sourceSubRectangle, unpackImageHeight,
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rTextureCoord, expectedColor, program,
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canvasSize, canvasSetupFunction, sourceDescription)
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{
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debug('');
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debug('Testing ' + sourceDescription + ' with ' +
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(useTexSubImage3D ? 'texSubImage3D' : 'texImage3D') +
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', flipY=' + flipY + ', bindingTarget=' +
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(bindingTarget == gl.TEXTURE_3D ? 'TEXTURE_3D' : 'TEXTURE_2D_ARRAY') +
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', sourceSubRectangle=' + sourceSubRectangle +
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', depth=' + depth +
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(unpackImageHeight ? ', unpackImageHeight=' + unpackImageHeight : '') +
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', rTextureCoord=' + rTextureCoord);
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// Initialize the contents of the source canvas.
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var width = canvasSize[0];
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var height = canvasSize[1];
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var halfWidth = Math.floor(width / 2);
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var halfHeight = Math.floor(height / 2);
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canvas.width = width;
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canvas.height = height;
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canvasSetupFunction(canvas);
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uploadCanvasToTexture(canvas, useTexSubImage3D, flipY, bindingTarget,
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depth, sourceSubRectangle, unpackImageHeight);
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var rCoordLocation = gl.getUniformLocation(program, 'uRCoord');
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if (!rCoordLocation) {
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testFailed('Shader incorrectly set up; couldn\'t find uRCoord uniform');
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return;
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}
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gl.uniform1f(rCoordLocation, rTextureCoord);
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// Draw the triangles
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wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]);
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// Check the rendered canvas
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wtu.checkCanvasRect(gl, 0, 0, canvasSize[0], canvasSize[1], expectedColor, "shouldBe " + expectedColor);
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}
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function runTest(canvas, canvasSetupFunction, sourceDescription)
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{
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var cases = [
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// Small canvas cases. Expected that these won't be
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// GPU-accelerated in most browsers' implementations.
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// No UNPACK_IMAGE_HEIGHT specified.
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{ expected: redColor, flipY: false, size: [4, 4], subRect: [0, 0, 2, 2], depth: 2, rTextureCoord: 0.0 },
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{ expected: blueColor, flipY: false, size: [4, 4], subRect: [0, 0, 2, 2], depth: 2, rTextureCoord: 1.0 },
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{ expected: blueColor, flipY: true, size: [4, 4], subRect: [0, 0, 2, 2], depth: 2, rTextureCoord: 0.0 },
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{ expected: redColor, flipY: true, size: [4, 4], subRect: [0, 0, 2, 2], depth: 2, rTextureCoord: 1.0 },
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{ expected: greenColor, flipY: false, size: [4, 4], subRect: [2, 0, 2, 2], depth: 2, rTextureCoord: 0.0 },
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{ expected: cyanColor, flipY: false, size: [4, 4], subRect: [2, 0, 2, 2], depth: 2, rTextureCoord: 1.0 },
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{ expected: cyanColor, flipY: true, size: [4, 4], subRect: [2, 0, 2, 2], depth: 2, rTextureCoord: 0.0 },
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{ expected: greenColor, flipY: true, size: [4, 4], subRect: [2, 0, 2, 2], depth: 2, rTextureCoord: 1.0 },
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// Use UNPACK_IMAGE_HEIGHT to skip some pixels.
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{ expected: redColor, flipY: false, size: [4, 4], subRect: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0 },
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{ expected: blueColor, flipY: false, size: [4, 4], subRect: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0 },
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{ expected: blueColor, flipY: true, size: [4, 4], subRect: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0 },
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{ expected: redColor, flipY: true, size: [4, 4], subRect: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0 },
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{ expected: greenColor, flipY: false, size: [4, 4], subRect: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0 },
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{ expected: cyanColor, flipY: false, size: [4, 4], subRect: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0 },
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{ expected: cyanColor, flipY: true, size: [4, 4], subRect: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0 },
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{ expected: greenColor, flipY: true, size: [4, 4], subRect: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0 },
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// Larger canvas cases. Expected that these will be
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// GPU-accelerated in most browsers' implementations.
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// Changes will be gladly accepted to trigger more
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// browsers' heuristics to accelerate these canvases.
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// No UNPACK_IMAGE_HEIGHT specified.
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{ expected: redColor, flipY: false, size: [384, 384], subRect: [0, 0, 192, 192], depth: 2, rTextureCoord: 0.0 },
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{ expected: blueColor, flipY: false, size: [384, 384], subRect: [0, 0, 192, 192], depth: 2, rTextureCoord: 1.0 },
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{ expected: blueColor, flipY: true, size: [384, 384], subRect: [0, 0, 192, 192], depth: 2, rTextureCoord: 0.0 },
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{ expected: redColor, flipY: true, size: [384, 384], subRect: [0, 0, 192, 192], depth: 2, rTextureCoord: 1.0 },
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{ expected: greenColor, flipY: false, size: [384, 384], subRect: [192, 0, 192, 192], depth: 2, rTextureCoord: 0.0 },
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{ expected: cyanColor, flipY: false, size: [384, 384], subRect: [192, 0, 192, 192], depth: 2, rTextureCoord: 1.0 },
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{ expected: cyanColor, flipY: true, size: [384, 384], subRect: [192, 0, 192, 192], depth: 2, rTextureCoord: 0.0 },
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{ expected: greenColor, flipY: true, size: [384, 384], subRect: [192, 0, 192, 192], depth: 2, rTextureCoord: 1.0 },
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// Use UNPACK_IMAGE_HEIGHT to skip some pixels.
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{ expected: redColor, flipY: false, size: [384, 384], subRect: [0, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 0.0 },
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{ expected: blueColor, flipY: false, size: [384, 384], subRect: [0, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 1.0 },
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{ expected: blueColor, flipY: true, size: [384, 384], subRect: [0, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 0.0 },
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{ expected: redColor, flipY: true, size: [384, 384], subRect: [0, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 1.0 },
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{ expected: greenColor, flipY: false, size: [384, 384], subRect: [192, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 0.0 },
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{ expected: cyanColor, flipY: false, size: [384, 384], subRect: [192, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 1.0 },
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{ expected: cyanColor, flipY: true, size: [384, 384], subRect: [192, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 0.0 },
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{ expected: greenColor, flipY: true, size: [384, 384], subRect: [192, 0, 96, 96], depth: 2, unpackImageHeight: 192, rTextureCoord: 1.0 },
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];
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var program = tiu.setupTexturedQuadWith3D(gl, internalFormat);
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for (var i in cases) {
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runOneIteration(canvas, false, cases[i].flipY, gl.TEXTURE_3D,
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cases[i].depth, cases[i].subRect,
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cases[i].unpackImageHeight, cases[i].rTextureCoord,
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cases[i].expected,
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program, cases[i].size, canvasSetupFunction, sourceDescription);
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runOneIteration(canvas, true, cases[i].flipY, gl.TEXTURE_3D,
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cases[i].depth, cases[i].subRect,
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cases[i].unpackImageHeight, cases[i].rTextureCoord,
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cases[i].expected,
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program, cases[i].size, canvasSetupFunction, sourceDescription);
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}
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program = tiu.setupTexturedQuadWith2DArray(gl, internalFormat);
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for (var i in cases) {
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runOneIteration(canvas, false, cases[i].flipY, gl.TEXTURE_2D_ARRAY,
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cases[i].depth, cases[i].subRect,
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cases[i].unpackImageHeight, cases[i].rTextureCoord,
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cases[i].expected,
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program, cases[i].size, canvasSetupFunction, sourceDescription);
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runOneIteration(canvas, true, cases[i].flipY, gl.TEXTURE_2D_ARRAY,
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cases[i].depth, cases[i].subRect,
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cases[i].unpackImageHeight, cases[i].rTextureCoord,
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cases[i].expected,
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program, cases[i].size, canvasSetupFunction, sourceDescription);
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}
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}
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return init;
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}
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