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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/rendering/framebuffer-texture-clear.html')
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1 files changed, 97 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/rendering/framebuffer-texture-clear.html b/dom/canvas/test/webgl-conf/checkout/conformance/rendering/framebuffer-texture-clear.html new file mode 100644 index 0000000000..dc5d60def8 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/rendering/framebuffer-texture-clear.html @@ -0,0 +1,97 @@ +<!-- +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. +--> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>WebGL framebuffer clearColor with pure 0/1</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> +<div id="console"></div> +<canvas id="canvas" width="2" height="2"> </canvas> +<script> +"use strict"; +// This test verifies a Mac Intel HD 6000/6100 driver bug. See crbug.com/710443. +var wtu = WebGLTestUtils; +var gl = wtu.create3DContext("canvas"); + +function InitializeRGBAData(width, height) +{ + var size = 4 * width * height; + var data = new Uint8Array(size); + for (var i = 0; i < size; i++) { + data[i] = 128; + } + return data; +} + +function testFramebufferTextureClearWithPureZeroOrOne(clearColor, expectedColor) { + var width = 32; + var height = 32; + var texture0 = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, texture0); + // It seems that if we add texParameteri here, all cases can pass no matter + // you use texParameteri or not in Line 85. + // gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); + var texData = InitializeRGBAData(width, height); + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, texData); + + var fbo0 = gl.createFramebuffer(); + gl.bindFramebuffer(gl.FRAMEBUFFER, fbo0); + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture0, 0); + gl.viewport(0, 0, width, height); + gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]); + gl.clear(gl.COLOR_BUFFER_BIT); + + var texture1 = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, texture1); + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); + var fbo1 = gl.createFramebuffer(); + gl.bindFramebuffer(gl.FRAMEBUFFER, fbo1); + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture1, 0); + + wtu.setupTexturedQuad(gl); + + gl.bindTexture(gl.TEXTURE_2D, texture0); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); + gl.bindFramebuffer(gl.FRAMEBUFFER, fbo1); + gl.viewport(0, 0, width, height); + gl.drawArrays(gl.TRIANGLES, 0, 6); + + wtu.checkCanvasRect(gl, 0, 0, 1, 1, expectedColor); + + gl.deleteTexture(texture0); + gl.deleteFramebuffer(fbo0); + gl.deleteTexture(texture1); + gl.deleteFramebuffer(fbo1); +} + +description("Test that if clear fbo texture color with pure 0/1 and sample this texture to draw to another fbo, the final render color should be consistent with the clear color."); + +for(var index = 0; index < 16; index++) +{ + var r = (index & 8) / 8; + var g = (index & 4) / 4; + var b = (index & 2) / 2; + var a = index & 1; + var clearColor = [r, g, b, a]; + var expectedColor = [r * 255, g * 255, b * 255, a * 255]; + testFramebufferTextureClearWithPureZeroOrOne(clearColor, expectedColor); +} + +debug(""); +var successfullyParsed = true; + +</script> +<script src="../../js/js-test-post.js"></script> + +</body> +</html> |