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diff --git a/dom/canvas/test/webgl-mochitest/test_webgl_compressed_texture_es3.html b/dom/canvas/test/webgl-mochitest/test_webgl_compressed_texture_es3.html new file mode 100644 index 000000000..48dee2fc6 --- /dev/null +++ b/dom/canvas/test/webgl-mochitest/test_webgl_compressed_texture_es3.html @@ -0,0 +1,753 @@ +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<script src="/tests/SimpleTest/SimpleTest.js"></script> +<link rel="stylesheet" href="/tests/SimpleTest/test.css"> +<script src="webgl-util.js"></script> +<script src="es3-data.js"></script> +<title>WebGL test: test WEBGL_compressed_texture_es3 extension</title> +<style> +img { + border: 1px solid black; + margin-right: 1em; +} +.testimages { +} + +.testimages br { + clear: both; +} + +.testimages > div { + float: left; + margin: 1em; +} +</style> +</head> +<body> +<div id="description"></div> +<canvas id="canvas" width="8" height="8"></canvas> +<div id="console"></div> +<script id="vshader" type="x-shader/x-vertex"> + attribute vec4 vPosition; + attribute vec2 texCoord0; + varying vec2 texCoord; + void main() { + gl_Position = vPosition; + texCoord = texCoord0; + } +</script> +<script id="fshader" type="x-shader/x-fragment"> + precision mediump float; + uniform sampler2D tex; + varying vec2 texCoord; + void main() { + gl_FragData[0] = texture2D(tex, texCoord); + } +</script> +<script id="fshader-r" type="x-shader/x-fragment"> + precision mediump float; + uniform sampler2D tex; + varying vec2 texCoord; + void main() { + vec4 pixel = (texture2D(tex, texCoord)); + pixel.r = (pixel.r + 1.0) / 2.0; + gl_FragData[0] = pixel; + } +</script> +<script id="fshader-rg" type="x-shader/x-fragment"> + precision mediump float; + uniform sampler2D tex; + varying vec2 texCoord; + void main() { + vec4 pixel = (texture2D(tex, texCoord)); + pixel.rg = (pixel.rg + 1.0) / 2.0; + gl_FragData[0] = pixel; + } +</script> +<script> +"use strict"; +var ext = null; +var vao = null; +var gl = null; +var validFormats = { + COMPRESSED_R11_EAC : 0x9270, + COMPRESSED_SIGNED_R11_EAC : 0x9271, + COMPRESSED_RG11_EAC : 0x9272, + COMPRESSED_SIGNED_RG11_EAC : 0x9273, + COMPRESSED_RGB8_ETC2 : 0x9274, + COMPRESSED_SRGB8_ETC2 : 0x9275, + COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 : 0x9276, + COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 : 0x9277, + COMPRESSED_RGBA8_ETC2_EAC : 0x9278, + COMPRESSED_SRGB8_ALPHA8_ETC2_EAC : 0x9279, +}; +var name; +var supportedFormats; + +function setupUnitQuad() { + var vertexObject = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ + 1.0, 1.0, 0.0, + -1.0, 1.0, 0.0, + -1.0, -1.0, 0.0, + 1.0, 1.0, 0.0, + -1.0, -1.0, 0.0, + 1.0, -1.0, 0.0]), gl.STATIC_DRAW); + gl.enableVertexAttribArray(0); + gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); + + var vertexObject = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ + 1.0, 1.0, + 0.0, 1.0, + 0.0, 0.0, + 1.0, 1.0, + 0.0, 0.0, + 1.0, 0.0]), gl.STATIC_DRAW); + gl.enableVertexAttribArray(1); + gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0); +} + +function runTest() { + gl = WebGLUtil.getWebGL("canvas", false, {antialias: false}); + if (!gl) { + ok(false, "WebGL context does not exist"); + } else { + ok(true, "WebGL context exists"); + setupUnitQuad(); + + // Run tests with extension disabled + runTestDisabled(); + + // Query the extension and store globally so shouldBe can access it + ext = gl.getExtension("WEBGL_compressed_texture_es3"); + if (!ext) { + ok(true, "No WEBGL_compressed_texture_es3 support -- this is legal"); + runSupportedTest(false); + } else { + ok(true, "Successfully enabled WEBGL_compressed_texture_es3 extension"); + + runSupportedTest(true); + runTestExtension(); + } + } + SimpleTest.finish(); +} + +function runSupportedTest(extensionEnabled) { + var supported = gl.getSupportedExtensions(); + if (supported.indexOf("WEBGL_compressed_texture_es3") >= 0) { + if (extensionEnabled) { + ok(true, "WEBGL_compressed_texture_es3 listed as supported and getExtension succeeded"); + } else { + ok(false, "WEBGL_compressed_texture_es3 listed as supported but getExtension failed"); + } + } else { + if (extensionEnabled) { + ok(false, "WEBGL_compressed_texture_es3 not listed as supported but getExtension succeeded"); + } else { + ok(true, "WEBGL_compressed_texture_es3 not listed as supported and getExtension failed -- this is legal"); + } + } +} + +function runTestDisabled() { + is(gl.getParameter(gl.COMPRESSED_TEXTURE_FORMATS).length, 0, + "Should be no compressed texture formats"); +} + +function formatExists(format, supportedFormats) { + for (var ii = 0; ii < supportedFormats.length; ++ii) { + if (format == supportedFormats[ii]) { + ok(true, "supported format " + formatToString(format) + " is exists"); + return; + } + } + ok(false, "supported format " + formatToString(format) + " does not exist"); +} + +function formatToString(format) { + for (var p in ext) { + if (ext[p] == format) { + return p; + } + } + return "0x" + format.toString(16); +} + +function runTestExtension() { + // check that all format enums exist. + for (name in validFormats) { + is(ext[name], validFormats[name], "format is match"); + } + + supportedFormats = gl.getParameter(gl.COMPRESSED_TEXTURE_FORMATS); + // There should be exactly 10 formats + is(supportedFormats.length, 10, "Should be exactly 10 formats"); + + // check that all 10 formats exist + for (var name in validFormats.length) { + formatExists(validFormats[name], supportedFormats); + } + + // Test each format + testETC2_RGB(); +} + +function testETC2_RGB() { + var tests = [ + { + width: 4, + height: 4, + channels: 1, + data: img_4x4_r11_eac, + format: ext.COMPRESSED_R11_EAC + }, + { + width: 4, + height: 4, + channels: 1, + data: img_4x4_signed_r11_eac, + format: ext.COMPRESSED_SIGNED_R11_EAC + }, + { + width: 4, + height: 4, + channels: 2, + data: img_4x4_rg11_eac, + format: ext.COMPRESSED_RG11_EAC + }, + { + width: 4, + height: 4, + channels: 2, + data: img_4x4_signed_rg11_eac, + format: ext.COMPRESSED_SIGNED_RG11_EAC + }, + { + width: 4, + height: 4, + channels: 3, + data: img_4x4_rgb_etc2, + format: ext.COMPRESSED_RGB8_ETC2 + }, + { + width: 4, + height: 4, + channels: 3, + data: img_4x4_rgb_etc2, + format: ext.COMPRESSED_SRGB8_ETC2 + }, + { + width: 4, + height: 4, + channels: 4, + data: img_4x4_rgb_punchthrough_etc2, + format: ext.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 + }, + { + width: 4, + height: 4, + channels: 4, + data: img_4x4_rgb_punchthrough_etc2, + format: ext.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 + }, + { + width: 4, + height: 4, + channels: 4, + data: img_4x4_rgba_etc2, + format: ext.COMPRESSED_RGBA8_ETC2_EAC + }, + { + width: 4, + height: 4, + channels: 4, + data: img_4x4_rgba_etc2, + format: ext.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC + }, + { + width: 8, + height: 8, + channels: 1, + data: img_8x8_r11_eac, + format: ext.COMPRESSED_R11_EAC + }, + { + width: 8, + height: 8, + channels: 1, + data: img_8x8_signed_r11_eac, + format: ext.COMPRESSED_SIGNED_R11_EAC + }, + { + width: 8, + height: 8, + channels: 2, + data: img_8x8_rg11_eac, + format: ext.COMPRESSED_RG11_EAC + }, + { + width: 8, + height: 8, + channels: 2, + data: img_8x8_signed_rg11_eac, + format: ext.COMPRESSED_SIGNED_RG11_EAC + }, + { + width: 8, + height: 8, + channels: 3, + data: img_8x8_rgb_etc2, + format: ext.COMPRESSED_RGB8_ETC2 + }, + { + width: 8, + height: 8, + channels: 3, + data: img_8x8_rgb_etc2, + format: ext.COMPRESSED_SRGB8_ETC2 + }, + { + width: 8, + height: 8, + channels: 4, + data: img_8x8_rgb_punchthrough_etc2, + format: ext.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 + }, + { + width: 8, + height: 8, + channels: 4, + data: img_8x8_rgb_punchthrough_etc2, + format: ext.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 + }, + { + width: 8, + height: 8, + channels: 4, + data: img_8x8_rgba_etc2, + format: ext.COMPRESSED_RGBA8_ETC2_EAC + }, + { + width: 8, + height: 8, + channels: 4, + data: img_8x8_rgba_etc2, + format: ext.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC + }, + { + width: 32, + height: 32, + channels: 1, + data: img_32x32_r11_eac, + format: ext.COMPRESSED_R11_EAC + }, + { + width: 32, + height: 32, + channels: 1, + data: img_32x32_signed_r11_eac, + format: ext.COMPRESSED_SIGNED_R11_EAC + }, + { + width: 32, + height: 32, + channels: 2, + data: img_32x32_rg11_eac, + format: ext.COMPRESSED_RG11_EAC + }, + { + width: 32, + height: 32, + channels: 2, + data: img_32x32_signed_rg11_eac, + format: ext.COMPRESSED_SIGNED_RG11_EAC + }, + { + width: 32, + height: 32, + channels: 3, + data: img_32x32_rgb_etc2, + format: ext.COMPRESSED_RGB8_ETC2 + }, + { + width: 32, + height: 32, + channels: 3, + data: img_32x32_rgb_etc2, + format: ext.COMPRESSED_SRGB8_ETC2 + }, + { + width: 32, + height: 32, + channels: 4, + data: img_32x32_rgb_punchthrough_etc2, + format: ext.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 + }, + { + width: 32, + height: 32, + channels: 4, + data: img_32x32_rgb_punchthrough_etc2, + format: ext.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 + }, + { + width: 32, + height: 32, + channels: 4, + data: img_32x32_rgba_etc2, + format: ext.COMPRESSED_RGBA8_ETC2_EAC + }, + { + width: 32, + height: 32, + channels: 4, + data: img_32x32_rgba_etc2, + format: ext.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC + }, + ]; + testETCTextures(tests); +} + +function testETCTextures(tests) { + for (var ii = 0; ii < tests.length; ++ii) { + testETCTexture(tests[ii]); + } +} + +/* Return the size of block in bytes */ +function getBlockSize(format) { + switch (format) { + case ext.COMPRESSED_R11_EAC: + case ext.COMPRESSED_SIGNED_R11_EAC: + case ext.COMPRESSED_RGB8_ETC2: + case ext.COMPRESSED_SRGB8_ETC2: + case ext.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: + case ext.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: + return 8; + case ext.COMPRESSED_RG11_EAC: + case ext.COMPRESSED_SIGNED_RG11_EAC: + case ext.COMPRESSED_RGBA8_ETC2_EAC: + case ext.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: + return 16 + } +} + +function copyRect(data, srcX, srcY, dstX, dstY, width, height, stride) { + var bytesPerLine = width * 4; + var srcOffset = srcX * 4 + srcY * stride; + var dstOffset = dstX * 4 + dstY * stride; + for (var jj = height; jj > 0; --jj) { + for (var ii = 0; ii < bytesPerLine; ++ii) { + data[dstOffset + ii] = data[srcOffset + ii]; + } + srcOffset += stride; + dstOffset += stride; + } +} + +function testETCTexture(test) { + var data = new Uint8Array(test.data.compressed); + var width = test.width; + var height = test.height; + var format = test.format; + + var uncompressedData = new Uint8Array(test.data.decompressed); + var glErrorShouldBe = (gl, glError, msg) => { + msg = msg || ""; + var err = gl.getError(); + var getGLErrorAsString = err => { + if (err === gl.NO_ERROR) { + return "NO_ERROR"; + } + for (var name in gl) { + if (gl[name] === err) { + return name; + } + } + return err.toString(); + } + + if (err != glError) { + ok(false, "getError expected: " + getGLErrorAsString(glError) + + ". Was " + getGLErrorAsString(err) + " : " + msg); + } else { + ok(true, "getError was expected value: " + + getGLErrorAsString(glError) + " : " + msg); + } + }; + + canvas.width = width; + canvas.height = height; + gl.viewport(0, 0, width, height); + + var tex = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, tex); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "uploading compressed texture"); + gl.generateMipmap(gl.TEXTURE_2D); + glErrorShouldBe(gl, gl.INVALID_OPERATION, "trying to generate mipmaps from compressed texture"); + if (format == ext.COMPRESSED_SIGNED_R11_EAC) { + var program = WebGLUtil.createProgramByIds(gl, 'vshader', 'fshader-r'); + } else if (format == ext.COMPRESSED_SIGNED_RG11_EAC) { + var program = WebGLUtil.createProgramByIds(gl, 'vshader', 'fshader-rg'); + } else { + var program = WebGLUtil.createProgramByIds(gl, 'vshader', 'fshader'); + } + gl.bindAttribLocation(program, 0, 'vPosition'); + gl.bindAttribLocation(program, 1, 'texCoord0'); + gl.useProgram(program); + + gl.clearColor(1.0, 1.0, 1.0, 1.0); + gl.clear(gl.COLOR_BUFFER_BIT); + gl.drawArrays(gl.TRIANGLES, 0, 6); + compareRect(width, height, test.channels, width, height, uncompressedData, data, format); + + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height, 1, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "non 0 border"); + + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width + 4, height, 0, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions"); + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height + 4, 0, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions"); + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width - 4, height, 0, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions"); + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height - 4, 0, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions"); + + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width - 1, height, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "non multiple-of-4 supported"); + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width - 2, height, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "non multiple-of-4 supported"); + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height - 1, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "non multiple-of-4 supported"); + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height - 2, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "non multiple-of-4 supported"); + + if (width == 4) { + gl.compressedTexImage2D(gl.TEXTURE_2D, 1, format, 1, height, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "valid dimensions for level > 0"); + gl.compressedTexImage2D(gl.TEXTURE_2D, 1, format, 2, height, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "valid dimensions for level > 0"); + } + if (height == 4) { + gl.compressedTexImage2D(gl.TEXTURE_2D, 1, format, width, 1, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "valid dimensions for level > 0"); + gl.compressedTexImage2D(gl.TEXTURE_2D, 1, format, width, 2, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "valid dimensions for level > 0"); + } + + // pick a wrong format that uses the same amount of data. + var wrongFormat; + switch (format) { + case ext.COMPRESSED_R11_EAC: + wrongFormat = ext.COMPRESSED_SIGNED_R11_EAC; + break; + case ext.COMPRESSED_SIGNED_R11_EAC: + wrongFormat = ext.COMPRESSED_R11_EAC; + break; + case ext.COMPRESSED_RG11_EAC: + wrongFormat = ext.COMPRESSED_SIGNED_RG11_EAC; + break; + case ext.COMPRESSED_SIGNED_RG11_EAC: + wrongFormat = ext.COMPRESSED_RG11_EAC; + break; + case ext.COMPRESSED_RGB8_ETC2: + wrongFormat = ext.COMPRESSED_SRGB8_ETC2; + break; + case ext.COMPRESSED_SRGB8_ETC2: + wrongFormat = ext.COMPRESSED_RGB8_ETC2; + break; + case ext.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: + wrongFormat = ext.COMPRESSED_RGB8_ETC2; + break; + case ext.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: + wrongFormat = ext.COMPRESSED_RGB8_ETC2; + break; + case ext.COMPRESSED_RGBA8_ETC2_EAC: + wrongFormat = ext.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC; + break; + case ext.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: + wrongFormat = ext.COMPRESSED_RGBA8_ETC2_EAC; + break; + } + + // Restore original texture. + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "uploading compressed texture"); + + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, wrongFormat, data); + glErrorShouldBe(gl, gl.INVALID_OPERATION, "format does not match"); + + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width + 4, height, format, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions"); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height + 4, format, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions"); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width - 4, height, format, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions"); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height - 4, format, data); + glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions"); + + gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height, 0, data); + glErrorShouldBe(gl, gl.NO_ERROR, "uploading compressed texture"); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width - 1, height, format, data); + glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions"); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width - 2, height, format, data); + glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions"); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height - 1, format, data); + glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions"); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height - 2, format, data); + glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions"); + + var subData = new Uint8Array(data.buffer, 0, getBlockSize(format)); + + if (width == 8 && height == 8) { + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 1, 0, 4, 4, format, subData); + glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid offset"); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 1, 4, 4, format, subData); + glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid offset"); + } + + if (width < 32 && height < 32) { + var stride = width * 4; + for (var yoff = 0; yoff < height; yoff += 4) { + for (var xoff = 0; xoff < width; xoff += 4) { + copyRect(uncompressedData, 0, 0, xoff, yoff, 4, 4, stride); + gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, xoff, yoff, 4, 4, format, subData); + glErrorShouldBe(gl, gl.NO_ERROR, "uploading compressed texture"); + gl.clearColor(1.0, 1.0, 1.0, 1.0); + gl.clear(gl.COLOR_BUFFER_BIT); + gl.drawArrays(gl.TRIANGLES, 0, 6); + compareRect(width, height, test.channels, width, height, uncompressedData, data, format); + } + } + } +} + +function insertImg(element, caption, img) { + var div = document.createElement("div"); + div.appendChild(img); + var label = document.createElement("div"); + label.appendChild(document.createTextNode(caption)); + div.appendChild(label); + element.appendChild(div); +} + +function convertToSRGB(val) { + var norm = val / 255.0; + var res = 0; + if (norm <= 0.04045) { + res = norm / 12.92; + } else { + res = Math.pow(((norm + 0.055)/1.055), 2.4); + } + + return res * 255.0; +} + +function makeImage(imageWidth, imageHeight, dataWidth, data, alpha) { + var scale = 8; + var c = document.createElement("canvas"); + c.width = imageWidth * scale; + c.height = imageHeight * scale; + var ctx = c.getContext("2d"); + for (var yy = 0; yy < imageHeight; ++yy) { + for (var xx = 0; xx < imageWidth; ++xx) { + var offset = (yy * dataWidth + xx) * 4; + ctx.fillStyle = "rgba(" + + data[offset + 0] + "," + + data[offset + 1] + "," + + data[offset + 2] + "," + + (alpha ? data[offset + 3] / 255 : 1) + ")"; + ctx.fillRect(xx * scale, yy * scale, scale, scale); + } + } + var img = document.createElement("img"); + img.src = c.toDataURL(); + return img; +} + +function compareRect(actualWidth, actualHeight, actualChannels, + dataWidth, dataHeight, expectedData, + testData, testFormat) +{ + var actual = new Uint8Array(actualWidth * actualHeight * 4); + gl.readPixels( + 0, 0, actualWidth, actualHeight, gl.RGBA, gl.UNSIGNED_BYTE, actual); + + var div = document.createElement("div"); + div.className = "testimages"; + var hasAlpha = actualChannels == 4; + var imgExpected = makeImage(actualWidth, actualHeight, dataWidth, expectedData, hasAlpha); + var imgActual = makeImage(actualWidth, actualHeight, actualWidth, actual, hasAlpha); + insertImg(div, "expected", imgExpected); + insertImg(div, "actual", imgActual); + div.appendChild(document.createElement('br')); + document.getElementById("console").appendChild(div); + + var failed = false; + for (var yy = 0; yy < actualHeight; ++yy) { + for (var xx = 0; xx < actualWidth; ++xx) { + var actualOffset = (yy * actualWidth + xx) * 4; + var expectedOffset = (yy * dataWidth + xx) * 4; + var expected = expectedData.slice(expectedOffset, expectedOffset + 4); + + var maxDiffPixel = 0; + switch (testFormat) { + case ext.COMPRESSED_SRGB8_ETC2: + case ext.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: + case ext.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: + + // Alpha shouldn't do conversion. + for (var i = 0; i < 3; ++i) { + expected[i] = convertToSRGB(expected[i]); + } + //fallthrough + case ext.COMPRESSED_R11_EAC: + case ext.COMPRESSED_RG11_EAC: + case ext.COMPRESSED_SIGNED_R11_EAC: + case ext.COMPRESSED_SIGNED_RG11_EAC: + // Due to floating round error, we need fuzzy test here. + var maxDiffPixel = 1; + break; + default: + var maxDiffPixel = 0; + break; + } + + for (var channel = 0; channel < actualChannels; ++channel) { + var diff = Math.abs(expected[channel] - actual[actualOffset + channel]); + + if (diff > maxDiffPixel) { + failed = true; + var was = actual.slice(actualOffset, actualOffset + 4).join(); + ok(false, 'at (' + xx + ', ' + yy + + ') expected: ' + expected.join() + ' was ' + was); + break; + } + } + } + } + if (!failed) { + ok(true, "texture rendered correctly"); + } +} + +var prefArrArr = [ + ['webgl.enable-draft-extensions', true], +]; +var prefEnv = {'set': prefArrArr}; +SimpleTest.waitForExplicitFinish(); +SpecialPowers.pushPrefEnv(prefEnv, runTest); +</script> +</body> +</html> |