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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/copy-tex-sub-image-2d-partial-texture.html')
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diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/copy-tex-sub-image-2d-partial-texture.html b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/copy-tex-sub-image-2d-partial-texture.html new file mode 100644 index 000000000..3fa47a4c0 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/copy-tex-sub-image-2d-partial-texture.html @@ -0,0 +1,191 @@ +<!-- + +/* +** 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. +*/ + +--> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>CopyTexSubImage2D partial destination texture test</title> +<link rel="stylesheet" href="../../../resources/js-test-style.css"/> +<script src="../../../js/js-test-pre.js"></script> +<script src="../../../js/webgl-test-utils.js"></script> +</head> +<body> +<div id="description"></div> +<canvas id="canvas"></canvas> +<div id="console"></div> + +<script> +"use strict"; +description("Verifies that copyTexSubImage2D redefining part of the destination texture works as expected."); + +//// + +var kWidth = 16; +var kHeight = 16; + +//// + +var wtu = WebGLTestUtils; +var canvas = document.getElementById("canvas"); + +canvas.width = kWidth; +canvas.height = kHeight; +var gl = wtu.create3DContext(canvas); + +//// + +function clearTo(color) { + gl.clearColor(color[0], color[1], color[2], color[3]); + gl.clear(gl.COLOR_BUFFER_BIT); +} + +function readInto(view) { + gl.readPixels(0, 0, kWidth, kHeight, gl.RGBA, gl.UNSIGNED_BYTE, + new Uint8Array(view.buffer)); +} + +//// + +function runTest() { + gl.enable(gl.SCISSOR_TEST); + + gl.scissor(0, 0, kWidth/2, kHeight/2); + clearTo([1,0,0,1]); + gl.scissor(kWidth/2, 0, kWidth/2, kHeight/2); + clearTo([0,1,0,1]); + gl.scissor(0, kHeight/2, kWidth/2, kHeight/2); + clearTo([0,0,1,1]); + gl.scissor(kWidth/2, kHeight/2, kWidth/2, kHeight/2); + clearTo([0,1,1,1]); + + var srcData = new Uint32Array(kWidth * kHeight); + readInto(srcData); + console.log('0x' + srcData[0].toString(16)); + + //// + + var dstTex = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, dstTex); + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, kWidth, kHeight, + 0, gl.RGBA, gl.UNSIGNED_BYTE, null); // Uploads zeros. + var dstRefData = new Uint32Array(kWidth * kHeight); // Also cleared to zeros! + var dstTestData = new Uint32Array(kWidth * kHeight); + + var dstFB = gl.createFramebuffer(); + gl.bindFramebuffer(gl.FRAMEBUFFER, dstFB); + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, + gl.TEXTURE_2D, dstTex, 0); + + //// + + function pixelPos(x, y) { + return y * kWidth + x; + } + + function testCmd(tuple) { + var dstX0, dstY0, srcX0, srcY0, width, height; + [dstX0, dstY0, srcX0, srcY0, width, height] = tuple + debug("copyTexSubImage2D(" + + [dstX0+','+dstY0, srcX0+','+srcY0, width+','+height].join(', ') + + ")"); + + // Test + gl.bindFramebuffer(gl.FRAMEBUFFER, null); + gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, + dstX0, dstY0, srcX0, srcY0, width, height); + + // Emulate for reference + for (var x = 0; x < width; x++) { + var srcX = srcX0 + x; + var dstX = dstX0 + x; + if (srcX < 0 || srcX >= kWidth || + dstX < 0 || dstX >= kWidth) + { + continue; + } + + for (var y = 0; y < height; y++) { + var srcY = srcY0 + y; + var dstY = dstY0 + y; + if (srcY < 0 || srcY >= kHeight || + dstY < 0 || dstY >= kHeight) + { + continue; + } + + + var srcPos = pixelPos(srcX, srcY); + var dstPos = pixelPos(dstX, dstY); + dstRefData[dstPos] = srcData[srcPos]; + } + } + + // Compare + gl.bindFramebuffer(gl.FRAMEBUFFER, dstFB); + readInto(dstTestData); + + for (var x = 0; x < kWidth; x++) { + for (var y = 0; y < kHeight; y++) { + var pos = pixelPos(x, y); + var refPixel = dstRefData[pos]; + var testPixel = dstTestData[pos]; + + //console.log([x, y].join(",") + ":", + // testPixel.toString(16), refPixel.toString(16)) + if (testPixel == refPixel) + continue; + + testFailed("Mismatch at (" + [x, y].join(", ") + "): " + + " Should be 0x" + refPixel.toString(16) + + ", was 0x" + testPixel.toString(16)); + return false; + } + } + + return true; + } + + var tests = [ + [0,0, 0,0, 2,3], + [0,0, 5,8, 2,3], + [1,0, 0,0, 2,3], + [1,7, 0,0, 2,3], + ]; + + tests.every(x => testCmd(x)); +} + +runTest(); + +debug(""); +var successfullyParsed = true; +</script> +<script src="../../../js/js-test-post.js"></script> + +</body> +</html> |