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Diffstat (limited to '')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-2d-with-canvas-sub-rectangle.js | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-2d-with-canvas-sub-rectangle.js b/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-2d-with-canvas-sub-rectangle.js new file mode 100644 index 0000000000..792f832451 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-2d-with-canvas-sub-rectangle.js @@ -0,0 +1,292 @@ +/* +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +*/ + +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 = realRedColor; + var greenColor = realGreenColor; + var blueColor = realBlueColor; + var cyanColor = realCyanColor; + + function init() + { + description('Verify texImage2D and texSubImage2D 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); + + // The sub-rectangle tests only apply to WebGL 2.0 for the + // time being, though the tests for the WebGL 1.0 + // format/internal format/type combinations are generated into + // conformance/textures/. + if (wtu.getDefault3DContextVersion() < 2) { + debug('Test only applies to WebGL 2.0'); + finishTest(); + return; + } + + gl = wtu.create3DContext("example", { preserveDrawingBuffer: true }); + + 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; + + case gl.LUMINANCE: + case gl.LUMINANCE_ALPHA: + redColor = [255, 255, 255]; + greenColor = [0, 0, 0]; + blueColor = [0, 0, 0]; + cyanColor = [0, 0, 0]; + break; + + case gl.ALPHA: + redColor = [0, 0, 0]; + greenColor = [0, 0, 0]; + blueColor = [0, 0, 0]; + cyanColor = [0, 0, 0]; + break; + + default: + break; + } + + gl.clearColor(0,0,0,1); + gl.clearDepth(1); + gl.disable(gl.BLEND); + + var canvas2d = document.createElement('canvas'); + runTest(canvas2d, setupSourceCanvas2D, '2D-rendered canvas'); + + var canvasWebGL = document.createElement('canvas'); + runTest(canvasWebGL, setupSourceCanvasWebGL, 'WebGL-rendered canvas'); + + finishTest(); + } + + 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(sourceDescription, useTexSubImage2D, flipY, + canvas, canvasSize, canvasSetupFunction, + sourceSubRectangle, expected, + bindingTarget, program) + { + sourceSubRectangleString = ''; + if (sourceSubRectangle) { + sourceSubRectangleString = ', sourceSubRectangle=' + sourceSubRectangle; + } + debug(''); + debug('Testing ' + sourceDescription + ' with ' + + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') + + ', flipY=' + flipY + + ', bindingTarget=' + (bindingTarget == gl.TEXTURE_2D ? 'TEXTURE_2D' : 'TEXTURE_CUBE_MAP') + + sourceSubRectangleString); + + var loc; + if (bindingTarget == gl.TEXTURE_CUBE_MAP) { + loc = gl.getUniformLocation(program, "face"); + } + + // 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); + + // Upload the source canvas to the texture and draw it to a quad. + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); + // Enable writes to the RGBA channels + 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); + // Set up pixel store parameters + gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY); + gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); + wtu.failIfGLError(gl, 'gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);'); + var targets = [gl.TEXTURE_2D]; + if (bindingTarget == gl.TEXTURE_CUBE_MAP) { + targets = [gl.TEXTURE_CUBE_MAP_POSITIVE_X, + gl.TEXTURE_CUBE_MAP_NEGATIVE_X, + gl.TEXTURE_CUBE_MAP_POSITIVE_Y, + gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, + gl.TEXTURE_CUBE_MAP_POSITIVE_Z, + gl.TEXTURE_CUBE_MAP_NEGATIVE_Z]; + } + // In this test, this is always specified. It's currently WebGL 2.0-specific. + gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, sourceSubRectangle[0]); + gl.pixelStorei(gl.UNPACK_SKIP_ROWS, sourceSubRectangle[1]); + // Upload the image into the texture + var uploadWidth = sourceSubRectangle[2]; + var uploadHeight = sourceSubRectangle[3]; + for (var tt = 0; tt < targets.length; ++tt) { + if (useTexSubImage2D) { + // Initialize the texture to black first + gl.texImage2D(targets[tt], 0, gl[internalFormat], + uploadWidth, uploadHeight, 0, + gl[pixelFormat], gl[pixelType], null); + gl.texSubImage2D(targets[tt], 0, 0, 0, + uploadWidth, uploadHeight, + gl[pixelFormat], gl[pixelType], canvas); + } else { + gl.texImage2D(targets[tt], 0, gl[internalFormat], + uploadWidth, uploadHeight, 0, + gl[pixelFormat], gl[pixelType], canvas); + } + } + + gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, 0); + gl.pixelStorei(gl.UNPACK_SKIP_ROWS, 0); + + // The tests are constructed to upload a single solid color + // out of the canvas. + var outputCanvasWidth = gl.drawingBufferWidth; + var outputCanvasHeight = gl.drawingBufferHeight; + + for (var tt = 0; tt < targets.length; ++tt) { + if (bindingTarget == gl.TEXTURE_CUBE_MAP) { + gl.uniform1i(loc, targets[tt]); + } + // Draw the triangles + wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]); + + var msg = 'should be ' + expected; + wtu.checkCanvasRect(gl, 0, 0, outputCanvasWidth, outputCanvasHeight, expected, msg); + } + } + + function runTest(canvas, canvasSetupFunction, sourceDescription) + { + var program = tiu.setupTexturedQuad(gl, internalFormat); + runTestOnBindingTarget(gl.TEXTURE_2D, program, canvas, canvasSetupFunction, sourceDescription); + program = tiu.setupTexturedQuadWithCubeMap(gl, internalFormat); + runTestOnBindingTarget(gl.TEXTURE_CUBE_MAP, program, canvas, canvasSetupFunction, sourceDescription); + + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors"); + } + + function runTestOnBindingTarget(bindingTarget, program, canvas, canvasSetupFunction, sourceDescription) { + var cases = [ + // Small canvas cases. Expected that these won't be + // GPU-accelerated in most browsers' implementations. + { expected: redColor, flipY: false, size: [2, 2], subRect: [0, 0, 1, 1] }, + { expected: greenColor, flipY: false, size: [2, 2], subRect: [1, 0, 1, 1] }, + { expected: blueColor, flipY: false, size: [2, 2], subRect: [0, 1, 1, 1] }, + { expected: cyanColor, flipY: false, size: [2, 2], subRect: [1, 1, 1, 1] }, + { expected: redColor, flipY: true, size: [2, 2], subRect: [0, 1, 1, 1] }, + { expected: greenColor, flipY: true, size: [2, 2], subRect: [1, 1, 1, 1] }, + { expected: blueColor, flipY: true, size: [2, 2], subRect: [0, 0, 1, 1] }, + { expected: cyanColor, flipY: true, size: [2, 2], subRect: [1, 0, 1, 1] }, + + // 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. + { expected: redColor, flipY: false, size: [384, 384], subRect: [ 0, 0, 192, 192] }, + { expected: greenColor, flipY: false, size: [384, 384], subRect: [192, 0, 192, 192] }, + { expected: blueColor, flipY: false, size: [384, 384], subRect: [ 0, 192, 192, 192] }, + { expected: cyanColor, flipY: false, size: [384, 384], subRect: [192, 192, 192, 192] }, + { expected: blueColor, flipY: true, size: [384, 384], subRect: [ 0, 0, 192, 192] }, + { expected: cyanColor, flipY: true, size: [384, 384], subRect: [192, 0, 192, 192] }, + { expected: redColor, flipY: true, size: [384, 384], subRect: [ 0, 192, 192, 192] }, + { expected: greenColor, flipY: true, size: [384, 384], subRect: [192, 192, 192, 192] }, + + ]; + + for (var i in cases) { + runOneIteration(sourceDescription, false, cases[i].flipY, + canvas, cases[i].size, canvasSetupFunction, + cases[i].subRect, + cases[i].expected, bindingTarget, program); + runOneIteration(sourceDescription, true, cases[i].flipY, + canvas, cases[i].size, canvasSetupFunction, + cases[i].subRect, + cases[i].expected, bindingTarget, program); + } + } + + return init; +} |