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Unified Diff: third_party/WebKit/LayoutTests/fast/canvas/webgl/read-pixels-pack-alignment.html

Issue 1601093008: Remove duplicated WebGL layout tests. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 11 months ago
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Index: third_party/WebKit/LayoutTests/fast/canvas/webgl/read-pixels-pack-alignment.html
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/read-pixels-pack-alignment.html b/third_party/WebKit/LayoutTests/fast/canvas/webgl/read-pixels-pack-alignment.html
deleted file mode 100644
index 89ae59dfaa7e0d47e1e9ff9fbe424b6fa735f45e..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/read-pixels-pack-alignment.html
+++ /dev/null
@@ -1,237 +0,0 @@
-<html>
-<head>
-<script src="../../../resources/js-test.js"></script>
-<script src="resources/webgl-test.js"></script>
-<script id="vshader" type="x-shader/x-vertex">
-attribute vec3 pos;
-attribute vec4 colorIn;
-varying vec4 color;
-
-void main()
-{
- color = colorIn;
- gl_Position = vec4(pos.xyz, 1.0);
-}
-</script>
-
-<script id="fshader" type="x-shader/x-fragment">
-#ifdef GL_ES
-precision mediump float;
-#endif
-varying vec4 color;
-
-void main()
-{
- gl_FragColor = color;
-}
-</script>
-</head>
-<body>
-<canvas id="example" width="32px" height="32px"></canvas>
-<div id="description"></div>
-<div id="console"></div>
-<script>
-if (window.internals)
- window.internals.settings.setWebGLErrorsToConsoleEnabled(false);
-
-// The below declarations need to be global for "shouldBe" to see them
-var gl = null;
-var array = null;
-var pixel = [ 0, 0, 0, 0 ];
-var expectedColor = [ 0, 0, 0, 0 ];
-
-function calculatePixelBytes(format, type)
-{
- var size = 0;
- switch (format) {
- case gl.ALPHA:
- size = 1;
- break;
- case gl.RGB:
- size = 3;
- break;
- case gl.RGBA:
- size = 4;
- break;
- default:
- return -1;
- }
- switch (type) {
- case gl.UNSIGNED_BYTE:
- break;
- case gl.UNSIGNED_SHORT_5_6_5:
- if (format != gl.RGB)
- return -1;
- size = 2;
- break;
- case gl.UNSIGNED_SHORT_4_4_4_4:
- case gl.UNSIGNED_SHORT_5_5_5_1:
- if (format != gl.RGBA)
- return -1;
- size = 2;
- break;
- default:
- return -1;
- }
- return size;
-}
-
-function calculatePaddingBytes(bytesPerPixel, packAlignment, width)
-{
- var padding = 0;
- switch (packAlignment) {
- case 1:
- case 2:
- case 4:
- case 8:
- padding = (bytesPerPixel * width) % packAlignment;
- if (padding > 0)
- padding = packAlignment - padding;
- break;
- default:
- return -1;
- }
- return padding;
-}
-
-function packColor(format, type, r, g, b, a)
-{
- // FIXME: not sure if the color packing is correct for UNSIGNED_SHORT_*.
- var color = [ 0, 0, 0, 0 ];
- switch (type) {
- case gl.UNSIGNED_BYTE:
- switch (format) {
- case gl.ALPHA:
- color[0] = a;
- break;
- case gl.RGB:
- color[0] = r;
- color[1] = g;
- color[2] = b;
- break;
- case gl.RGBA:
- color[0] = r;
- color[1] = g;
- color[2] = b;
- color[3] = a;
- break;
- default:
- return null;
- }
- break;
- case gl.UNSIGNED_SHORT_5_6_5:
- if (format != gl.RGB)
- return null;
- r >>= 3;
- g >>= 2;
- b >>= 3;
- color[0] = (r << 11) + (g << 5) + b;
- break;
- case gl.UNSIGNED_SHORT_4_4_4_4:
- if (format != gl.RGBA)
- return null;
- r >>= 4;
- g >>= 4;
- b >>= 4;
- a >>= 4;
- color[0] = (r << 12) + (g << 8) + (b << 4) + a;
- break;
- case gl.UNSIGNED_SHORT_5_5_5_1:
- if (format != gl.RGBA)
- return null;
- r >>= 3;
- g >>= 3;
- b >>= 3;
- a >>= 7;
- color[0] = (r << 11) + (g << 6) + (b << 1) + a;
- break;
- Default:
- return null;
- }
- return color;
-}
-
-function runTestIteration(format, type, packAlignment, width, height)
-{
- debug("Testing PACK_ALIGNMENT = " + packAlignment + ", width = " + width + ", height = " + height);
- gl.clearColor(1, 0.4, 0, 1);
- gl.clear(gl.COLOR_BUFFER_BIT);
- gl.pixelStorei(gl.PACK_ALIGNMENT, packAlignment);
- glErrorShouldBe(gl, gl.NO_ERROR);
- var bytesPerPixel = calculatePixelBytes(format, type);
- var padding = calculatePaddingBytes(bytesPerPixel, packAlignment, width);
- var size = bytesPerPixel * width * height + padding * (height - 1);
- var isShort = false;
- switch (type) {
- case gl.UNSIGNED_SHORT_5_6_5:
- case gl.UNSIGNED_SHORT_4_4_4_4:
- case gl.UNSIGNED_SHORT_5_5_5_1:
- isShort = true;
- }
- if (isShort)
- size /= 2;
- if (size < 0)
- size = 0;
- if (type == gl.UNSIGNED_BYTE)
- array = new Uint8Array(size);
- else
- array = new Uint16Array(size);
- gl.readPixels(0, 0, width, height, format, type, array);
- if (width < 0 || height < 0) {
- glErrorShouldBe(gl, gl.INVALID_VALUE);
- return;
- } else {
- glErrorShouldBe(gl, gl.NO_ERROR);
- if (!array.length)
- return;
- }
- // Check the last pixel of the last row.
- var bytesPerRow = width * bytesPerPixel + padding;
- var pos = bytesPerRow * (height - 1) + (width - 1) * bytesPerPixel;
- var numComponents = bytesPerPixel;
- if (isShort) {
- pos /= 2;
- numComponents /= 2;
- }
- for (var i = 0; i < numComponents; ++i)
- pixel[i] = array[pos + i];
- for (var i = numComponents; i < 4; ++i)
- pixel[i] = 0;
- expectedColor = packColor(format, type, 255, 102, 0, 255);
- shouldBeNonNull(expectedColor);
- shouldBe("pixel", "expectedColor");
-}
-
-description('Verify readPixels() works fine with various PACK_ALIGNMENT values.');
-
-shouldBeNonNull("gl = initWebGL('example', 'vshader', 'fshader', [ 'pos', 'colorIn' ], [ 0, 0, 0, 1 ], 1)");
-gl.disable(gl.BLEND);
-
-debug("Testing format = RGBA and type = UNSIGNED_BYTE");
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 1, 1, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 2, 1, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 4, 1, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 1, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 4, 2, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 2, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 4, 3, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 3, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 4, 4, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 4, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 5, 1);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 4, 5, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 5, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 6, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 7, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 8, 2);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 1, 0, 0);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 2, 0, 0);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 4, 0, 0);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, 0, 0);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 1, -1, 1);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 2, 1, -1);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 4, 0, -1);
-runTestIteration(gl.RGBA, gl.UNSIGNED_BYTE, 8, -1, -1);
-</script>
-</body>
-</html>
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