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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL2 texture unpack parameters with FLIP_Y / PREMULTIPLY_ALPHA conformance 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> |
| <canvas id="example" width="4" height="4"></canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script> |
| "use strict"; |
| |
| var wtu = WebGLTestUtils; |
| var __verbose__ = false; |
| |
| // Some drivers (for example, NVIDIA Linux) incorrectly require padding for |
| // the last row. The below flag is only for testing convenience. Browsers should |
| // work around the bug. |
| var __apply_alignment_workaround__ = false; |
| |
| function setupArrayBuffer(size, initData) { |
| var array = new Uint8Array(size); |
| if (initData) { |
| for (var ii = 0; ii < size; ++ii) { |
| array[ii] = ii % 255; |
| } |
| } |
| return array; |
| } |
| |
| function calculatePaddingBytes(bytesPerPixel, alignment, width) { |
| var padding = 0; |
| switch (alignment) { |
| case 1: |
| case 2: |
| case 4: |
| case 8: |
| padding = (bytesPerPixel * width) % alignment; |
| if (padding > 0) |
| padding = alignment - padding; |
| return padding; |
| default: |
| testFailed("should not reach here"); |
| return; |
| } |
| } |
| |
| function computeImageSizes2D(width, height, testCase) { |
| // Assume RGBA8/UNSIGNED_BYTE |
| var bytesPerPixel = 4; |
| var actualWidth = testCase.rowLength == 0 ? width : testCase.rowLength; |
| var padding = calculatePaddingBytes(bytesPerPixel, testCase.alignment, actualWidth); |
| var bytesPerRow = actualWidth * bytesPerPixel + padding; |
| var bytesLastRow = bytesPerPixel * width; |
| var size = bytesPerRow * (height - 1) + bytesLastRow; |
| var skipSize = 0; |
| if (testCase.skipPixels > 0) |
| skipSize += bytesPerPixel * testCase.skipPixels; |
| if (testCase.skipRows > 0) |
| skipSize += bytesPerRow * testCase.skipRows; |
| return {size: size, |
| bytesPerRow: bytesPerRow, |
| bytesLastRow: bytesLastRow, |
| padding: padding, |
| skipSize: skipSize, |
| totalSize: size + skipSize}; |
| } |
| |
| function copyData(srcData, srcIndex, dstData, dstIndex, size, premultiply_alpha) { |
| for (var ii = 0; ii < size / 4; ++ii) { |
| var factor = 1.0; |
| if (premultiply_alpha) |
| factor = srcData[srcIndex + ii * 4 + 3] / 255.0; |
| dstData[dstIndex + ii * 4] = srcData[srcIndex + ii * 4] * factor; |
| dstData[dstIndex + ii * 4 + 1] = srcData[srcIndex + ii * 4 + 1] * factor; |
| dstData[dstIndex + ii * 4 + 2] = srcData[srcIndex + ii * 4 + 2] * factor; |
| dstData[dstIndex + ii * 4 + 3] = srcData[srcIndex + ii * 4 + 3]; |
| } |
| } |
| |
| function unpackPixels(srcData, width, height, imageSizes, flip_y, premultiply_alpha) { |
| var bytesPerPixel = 4; |
| var unpackedSize = width * height * bytesPerPixel; |
| var dstData = setupArrayBuffer(unpackedSize, false); |
| var srcIndex = imageSizes.skipSize; |
| var dstIndex = 0; |
| var inc = width * bytesPerPixel; |
| if (flip_y) |
| dstIndex += (height - 1) * inc; |
| for (var y = 0; y < height; ++y) { |
| copyData(srcData, srcIndex, dstData, dstIndex, width * bytesPerPixel, premultiply_alpha); |
| srcIndex += imageSizes.bytesPerRow; |
| if (flip_y) |
| dstIndex -= inc; |
| else |
| dstIndex += inc; |
| } |
| if (flip_y) |
| dstIndex += height * inc; |
| return dstData; |
| } |
| |
| function getPixelsFromTexture2D(gl, tex, xoffset, yoffset, width, height) { |
| var fbo = gl.createFramebuffer(); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fbo); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0); |
| var bytesPerReadbackPixel = 4; |
| var readbackBuffer = setupArrayBuffer(width * height * bytesPerReadbackPixel, false); |
| gl.readPixels(xoffset, yoffset, width, height, gl.RGBA, gl.UNSIGNED_BYTE, readbackBuffer); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "read back texture pixels should succeed"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, null); |
| gl.deleteFramebuffer(fbo); |
| return readbackBuffer; |
| } |
| |
| function comparePixels(buffer1, buffer2, tolerance) { |
| if (buffer1.length != buffer2.length || buffer1.length % 4 != 0) { |
| testFailed("compare pixels: invalid buffer size"); |
| return; |
| } |
| var count = 0; |
| for (var ii = 0; ii < buffer1.length / 4; ++ii) { |
| var distance = 0; |
| for (var jj = 0; jj < 4; ++jj) { |
| var diff = buffer1[ii * 4 + jj] - buffer2[ii * 4 + jj]; |
| distance += diff * diff; |
| } |
| if (Math.sqrt(diff) > tolerance) { |
| if (__verbose__) { |
| debug("Pixel " + ii + ": expected (" + |
| [buffer1[ii * 4], buffer1[ii * 4 + 1], buffer1[ii * 4 + 2], buffer1[ii * 4 + 3]] + "), got (" + |
| [buffer2[ii * 4], buffer2[ii * 4 + 1], buffer2[ii * 4 + 2], buffer2[ii * 4 + 3]] + ")"); |
| } |
| count++; |
| } |
| } |
| if (count > 0) { |
| testFailed("compare pixels: " + count + " pixels differ"); |
| } else { |
| testPassed("compare pixels: as expected"); |
| } |
| } |
| |
| function runTestIteration2D(gl, testCase, flip_y, premultiply_alpha) { |
| debug(""); |
| debug("Texture upload with : flip_y = " + flip_y + ", premultiply_alpha = " + premultiply_alpha + |
| ", alignment = " + testCase.alignment + ", rowLength = " + testCase.rowLength + |
| ", skipPixels = " + testCase.skipPixels + ", skipRows = " + testCase.skipRows); |
| debug("TexImage2D : size = (" + testCase.width + ", " + testCase.height + ")"); |
| gl.pixelStorei(gl.UNPACK_ALIGNMENT, testCase.alignment); |
| gl.pixelStorei(gl.UNPACK_ROW_LENGTH, testCase.rowLength); |
| gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, testCase.skipPixels); |
| gl.pixelStorei(gl.UNPACK_SKIP_ROWS, testCase.skipRows); |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flip_y); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, premultiply_alpha); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Set up pixel store parameters should succeed"); |
| |
| var tol = 3; |
| |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| |
| var imageSizes = computeImageSizes2D(testCase.width, testCase.height, testCase); |
| var bufferSize = imageSizes.totalSize; |
| var array; |
| |
| // Verify buffer with less than enough size will fail. |
| array = setupArrayBuffer(bufferSize - 1, false); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, testCase.width, testCase.height, 0, |
| gl.RGBA, gl.UNSIGNED_BYTE, array); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "buffer too small"); |
| |
| if (__apply_alignment_workaround__) |
| bufferSize += imageSizes.padding; |
| array = setupArrayBuffer(bufferSize, true); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, testCase.width, testCase.height, 0, |
| gl.RGBA, gl.UNSIGNED_BYTE, array); |
| if (testCase.validUnpackParams2D) { |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage2D with correct buffer size should succeed"); |
| } else { |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid unpack params combination"); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, testCase.width, testCase.height, 0, |
| gl.RGBA, gl.UNSIGNED_BYTE, null); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "unpack param constraints do not apply if no data are uploaded."); |
| return; |
| } |
| |
| var buffer1 = unpackPixels(array, testCase.width, testCase.height, imageSizes, flip_y, premultiply_alpha); |
| var buffer2 = getPixelsFromTexture2D(gl, tex, 0, 0, testCase.width, testCase.height); |
| comparePixels(buffer1, buffer2, tol); |
| |
| var subWidth = testCase.width - testCase.xoffset; |
| var subHeight = testCase.height - testCase.yoffset; |
| debug("TexSubImage2D : offset = (" + testCase.xoffset + ", " + testCase.yoffset + |
| "), size = (" + subWidth + ", " + subHeight + ")"); |
| imageSizes = computeImageSizes2D(subWidth, subHeight, testCase); |
| bufferSize = imageSizes.totalSize; |
| |
| array = setupArrayBuffer(bufferSize - 1, false); |
| gl.texSubImage2D(gl.TEXTURE_2D, 0, testCase.xoffset, testCase.yoffset, |
| subWidth, subHeight, gl.RGBA, gl.UNSIGNED_BYTE, array); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "buffer too small"); |
| |
| if (__apply_alignment_workaround__) |
| bufferSize += imageSizes.padding; |
| array = setupArrayBuffer(bufferSize, true); |
| gl.texSubImage2D(gl.TEXTURE_2D, 0, testCase.xoffset, testCase.yoffset, subWidth, subHeight, |
| gl.RGBA, gl.UNSIGNED_BYTE, array); |
| if (testCase.validUnpackParamsForSub2D) { |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texSubImage2D with correct buffer size should succeed"); |
| } else { |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid unpack params combination"); |
| return; |
| } |
| |
| var buffer1 = unpackPixels(array, subWidth, subHeight, imageSizes, flip_y, premultiply_alpha); |
| var buffer2 = getPixelsFromTexture2D( |
| gl, tex, testCase.xoffset, testCase.yoffset, subWidth, subHeight); |
| comparePixels(buffer1, buffer2, tol); |
| |
| gl.bindTexture(gl.TEXTURE_2D, null); |
| gl.deleteTexture(tex); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no error"); |
| } |
| |
| function runTests(gl) { |
| var testCases = [ |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 1, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 2, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 6, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 4, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 5, height: 8, xoffset: 2, yoffset: 3, |
| alignment: 8, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| |
| // ROW_LENGTH == width |
| { width: 10, height: 9, xoffset: 2, yoffset: 3, |
| alignment: 4, rowLength: 10, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| |
| // ROW_LENGTH < width |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 1, rowLength: 4, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: false }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 2, rowLength: 4, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: false }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 4, rowLength: 4, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: false }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 8, rowLength: 4, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: false }, |
| |
| // ROW_LENGTH > width |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 1, rowLength: 6, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 2, rowLength: 7, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 4, rowLength: 8, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 8, rowLength: 9, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| |
| // IMAGE_HEIGHT == height |
| { width: 6, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 8, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| |
| // IMAGE_HEIGHT < height |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 1, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 2, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 4, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 8, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| |
| // IMAGE_HEIGHT > height |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 1, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 6, height: 7, xoffset: 2, yoffset: 2, |
| alignment: 2, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 7, height: 7, xoffset: 2, yoffset: 4, |
| alignment: 4, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 8, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 8, rowLength: 0, skipPixels: 0, skipRows: 0, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| |
| // SKIP parameters |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 1, rowLength: 0, skipPixels: 10, skipRows: 0, |
| validUnpackParams2D: false }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 2, rowLength: 0, skipPixels: 2, skipRows: 8, |
| validUnpackParams2D: false }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 4, rowLength: 0, skipPixels: 3, skipRows: 5, |
| validUnpackParams2D: false }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 8, rowLength: 0, skipPixels: 7, skipRows: 0, |
| validUnpackParams2D: false }, |
| |
| // all mixed. |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 1, rowLength: 6, skipPixels: 3, skipRows: 5, |
| validUnpackParams2D: false }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 2, rowLength: 4, skipPixels: 7, skipRows: 2, |
| validUnpackParams2D: false }, |
| { width: 5, height: 7, xoffset: 2, yoffset: 3, |
| alignment: 4, rowLength: 10, skipPixels: 0, skipRows: 3, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| { width: 1, height: 1, xoffset: 0, yoffset: 0, |
| alignment: 2, rowLength: 3, skipPixels: 3, skipRows: 5, |
| validUnpackParams2D: false }, |
| { width: 17, height: 6, xoffset: 12, yoffset: 3, |
| alignment: 2, rowLength: 4, skipPixels: 1, skipRows: 4, |
| validUnpackParams2D: false }, |
| { width: 8, height: 17, xoffset: 2, yoffset: 13, |
| alignment: 4, rowLength: 9, skipPixels: 0, skipRows: 3, |
| validUnpackParams2D: true, validUnpackParamsForSub2D: true }, |
| ]; |
| |
| var groups = [ |
| // { flip_y: false, premultiply_alpha: false }, |
| { flip_y: true, premultiply_alpha: false }, |
| { flip_y: false, premultiply_alpha: true }, |
| { flip_y: true, premultiply_alpha: true }, |
| ]; |
| |
| for (var jj = 0; jj < groups.length; ++jj) { |
| var group = groups[jj]; |
| for (var ii = 0; ii < testCases.length; ++ii) { |
| var testCase = testCases[ii]; |
| runTestIteration2D(gl, testCase, group.flip_y, group.premultiply_alpha); |
| } |
| } |
| } |
| |
| function runNegativeTests(gl) { |
| debug(""); |
| debug("Test tex{Sub}Image2D from pbo fails with FLIP_Y = true or PREMULTIPLY_ALPHA = true"); |
| |
| var width = 16, height = 16, depth = 2; |
| |
| // Restore default values. |
| gl.pixelStorei(gl.UNPACK_ALIGNMENT, 4); |
| gl.pixelStorei(gl.UNPACK_ROW_LENGTH, 0); |
| gl.pixelStorei(gl.UNPACK_IMAGE_HEIGHT, 0); |
| gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, 0); |
| gl.pixelStorei(gl.UNPACK_SKIP_ROWS, 0); |
| gl.pixelStorei(gl.UNPACK_SKIP_IMAGES, 0); |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| |
| var bufferSize = width * height * 4; // RGBA8 |
| var buffer = gl.createBuffer(); |
| gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, buffer); |
| gl.bufferData(gl.PIXEL_UNPACK_BUFFER, bufferSize, gl.DYNAMIC_DRAW); |
| |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage2D from pbo works with default pixel store settings"); |
| gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texSubImage2D from pbo works with default pixel store settings"); |
| |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texImage2D from pbo with FLIP_Y=true should fail"); |
| gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texSubImage2D from pbo with FLIP_Y=true should fail"); |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false); |
| |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA8, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texImage2D from pbo with PREMULTIPLY_ALPHA=true should fail"); |
| gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texSubImage2D from pbo with PREMULTIPLY_ALPHA=true should fail"); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| |
| debug(""); |
| debug("Test tex{Sub}Image3D from pbo fails with FLIP_Y = true or PREMULTIPLY_ALPHA = true"); |
| |
| gl.deleteTexture(tex); |
| tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_3D, tex); |
| |
| bufferSize = width * height * depth * 4; // RGBA8 |
| gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, buffer); |
| gl.bufferData(gl.PIXEL_UNPACK_BUFFER, bufferSize, gl.DYNAMIC_DRAW); |
| |
| gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA8, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage3D from pbo works with default pixel store settings"); |
| gl.texSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, width, height, depth, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texSubImage3D from pbo works with default pixel store settings"); |
| |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true); |
| gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA8, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texImage3D from pbo with FLIP_Y=true should fail"); |
| gl.texSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, width, height, depth, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texSubImage3D from pbo with FLIP_Y=true should fail"); |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false); |
| |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true); |
| gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA8, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texImage3D from pbo with PREMULTIPLY_ALPHA=true should fail"); |
| gl.texSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, width, height, depth, gl.RGBA, gl.UNSIGNED_BYTE, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texSubImage3D from pbo with PREMULTIPLY_ALPHA=true should fail"); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| |
| debug(""); |
| debug("Test tex{Sub}Image3D from client array fails with FLIP_Y = true or PREMULTIPLY_ALPHA = true"); |
| |
| gl.bindBuffer(gl.PIXEL_UNPACK_BUFFER, null); |
| gl.deleteBuffer(buffer); |
| buffer = null; |
| var array = setupArrayBuffer(bufferSize, false); |
| |
| gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA8, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, array); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texImage3D from client array works with default pixel store settings"); |
| gl.texSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, width, height, depth, gl.RGBA, gl.UNSIGNED_BYTE, array); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texSubImage3D from client array works with default pixel store settings"); |
| |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true); |
| gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA8, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, array); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texImage3D from client array with FLIP_Y=true should fail"); |
| gl.texSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, width, height, depth, gl.RGBA, gl.UNSIGNED_BYTE, array); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texSubImage3D from client array with FLIP_Y=true should fail"); |
| gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false); |
| |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true); |
| gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA8, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, array); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texImage3D from pbo with PREMULTIPLY_ALPHA=true should fail"); |
| gl.texSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, width, height, depth, gl.RGBA, gl.UNSIGNED_BYTE, array); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "texSubImage3D from pbo with PREMULTIPLY_ALPHA=true should fail"); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| } |
| |
| function runRegressionTests(gl) { |
| debug(""); |
| debug("The following test serves as a regression test for crbug.com/774174"); |
| var array = new Uint16Array(32); |
| gl.pixelStorei(gl.UNPACK_ROW_LENGTH, 4); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 6); |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| gl.texSubImage2D(gl.TEXTURE_2D, 4, 7, 5, 8, 5, gl.RGB, gl.UNSIGNED_SHORT_5_5_5_1, array); |
| // At this point, the Chrome ASAN build used to crash. |
| testPassed("The regression test for crbug.com/774174 doesn't crash"); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "Calling texSubImage2D without initializing the texture is illegal"); |
| gl.pixelStorei(gl.UNPACK_ROW_LENGTH, 0); |
| gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| } |
| |
| var gl = wtu.create3DContext("example", undefined, 2); |
| if (!gl) { |
| testFailed("Fail to get a WebGL context"); |
| } else { |
| runTests(gl); |
| runNegativeTests(gl); |
| runRegressionTests(gl); |
| } |
| |
| debug(""); |
| var successfullyParsed = true; |
| </script> |
| <script src="../../../js/js-test-post.js"></script> |
| </body> |
| </html> |
