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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance2/textures/misc/tex-storage-compressed-formats.html')
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diff --git a/dom/canvas/test/webgl-conf/checkout/conformance2/textures/misc/tex-storage-compressed-formats.html b/dom/canvas/test/webgl-conf/checkout/conformance2/textures/misc/tex-storage-compressed-formats.html new file mode 100644 index 0000000000..e154631ead --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance2/textures/misc/tex-storage-compressed-formats.html @@ -0,0 +1,136 @@ +<!-- +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>Conformance test for WebGL2 texStorage2D and texStorage3D with compressed format</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" width="64" height="64"> </canvas> +<div id="console"></div> + + +<script> +"use strict"; +description("This test verifies that texStorage2D and texStorage3D " + + "accept compressed internalformats."); + +debug(""); + +var wtu = WebGLTestUtils; +var canvas = document.getElementById("canvas"); +var gl = wtu.create3DContext(canvas, null, 2); + +// Either of these extensions should be available on all WebGL 2.0 contexts +const WEBGL_compressed_texture_etc = gl.getExtension("WEBGL_compressed_texture_etc"); +const WEBGL_compressed_texture_s3tc = gl.getExtension("WEBGL_compressed_texture_s3tc"); + +if (!gl) { + testFailed("WebGL context does not exist"); +} else { + testPassed("WebGL context exists"); + + if (WEBGL_compressed_texture_etc) { + debug("Testing WEBGL_compressed_texture_etc formats"); + + // These compressed formats are in Table 3.19 from the OpenGL ES 3.0.4 spec. + runTexCompressedFormatsTest([ + WEBGL_compressed_texture_etc.COMPRESSED_R11_EAC, + WEBGL_compressed_texture_etc.COMPRESSED_SIGNED_R11_EAC, + WEBGL_compressed_texture_etc.COMPRESSED_RG11_EAC, + WEBGL_compressed_texture_etc.COMPRESSED_SIGNED_RG11_EAC, + WEBGL_compressed_texture_etc.COMPRESSED_RGB8_ETC2, + WEBGL_compressed_texture_etc.COMPRESSED_SRGB8_ETC2, + WEBGL_compressed_texture_etc.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, + WEBGL_compressed_texture_etc.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, + WEBGL_compressed_texture_etc.COMPRESSED_RGBA8_ETC2_EAC, + WEBGL_compressed_texture_etc.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, + ]); + } else { + testPassed("No WEBGL_compressed_texture_etc support -- this is legal"); + } + + if (WEBGL_compressed_texture_s3tc) { + debug("Testing WEBGL_compressed_texture_s3tc formats"); + + runTexCompressedFormatsTest([ + WEBGL_compressed_texture_s3tc.COMPRESSED_RGB_S3TC_DXT1_EXT, + WEBGL_compressed_texture_s3tc.COMPRESSED_RGBA_S3TC_DXT1_EXT, + WEBGL_compressed_texture_s3tc.COMPRESSED_RGBA_S3TC_DXT3_EXT, + WEBGL_compressed_texture_s3tc.COMPRESSED_RGBA_S3TC_DXT5_EXT, + ]); + } else { + testPassed("No WEBGL_compressed_texture_s3tc support -- this is legal"); + } + + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); +} + +function enumToString(value) { + return wtu.glEnumToString(gl, value); +} + +function runTexCompressedFormatsTest(texCompressedFormats) +{ + wtu.setupUnitQuad(gl); + + gl.useProgram(wtu.setupSimpleTextureProgramESSL300(gl, undefined, undefined, + `#version 300 es + precision mediump float; + uniform mediump sampler2DArray tex; + in vec2 texCoord; + out vec4 out_color; + void main() { + out_color = texture(tex, vec3(texCoord, 0)); + }` + )); + + texCompressedFormats.forEach(function(internalformat){ + // Test a 2D texture. + var tex = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, tex); + gl.texStorage2D(gl.TEXTURE_2D, 1, internalformat, 4, 4); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, + "texStorage2D should succeed for " + enumToString(internalformat)); + gl.deleteTexture(tex); + + // GLES 3.0.4 p147: + EXT_texture_compression_s3tc: + // If internalformat is an ETC2/EAC/DXT1/DXT3/DXT5 + // format, CompressedTexImage3D will generate an INVALID_OPERATION error if + // target is not TEXTURE_2D_ARRAY. + + // Test the 3D texture targets. + var tex3d = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_3D, tex3d); + gl.texStorage3D(gl.TEXTURE_3D, 1, internalformat, 4, 4, 1); + wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, + "texStorage3D(TEXTURE_3D) should fail for " + enumToString(internalformat)); + gl.deleteTexture(tex3d); + + var tex2dArr = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D_ARRAY, tex2dArr); + gl.texStorage3D(gl.TEXTURE_2D_ARRAY, 1, internalformat, 4, 4, 1); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, + "texStorage3D(TEXTURE_2D_ARRAY) should succeed for " + enumToString(internalformat)); + wtu.clearAndDrawUnitQuad(gl); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "drawing unit quad from empty texture"); + gl.deleteTexture(tex2dArr); + }); +} + +debug(""); +var successfullyParsed = true; +</script> +<script src="../../../js/js-test-post.js"></script> + +</body> +</html> |