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Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/mipmap-fbo.html')
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diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/mipmap-fbo.html b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/mipmap-fbo.html new file mode 100644 index 0000000000..1fe851d738 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/mipmap-fbo.html @@ -0,0 +1,109 @@ +<!-- +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>Test if mipmap incomplete textures can be used as FBO attachments, and mipmap generation on a texture filled by an FBO works correctly</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="24" height="24"></canvas> +<div id="description"></div> +<div id="console"></div> +<script> +"use strict"; + +var wtu = WebGLTestUtils; +description(); + +var gl = wtu.create3DContext("example"); + +function testMipmapGeneration() { + // setup render target texture // + var texture = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, texture); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR); + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 32, 32, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); + gl.bindTexture(gl.TEXTURE_2D, null); + + // setup framebuffer // + var fbo = gl.createFramebuffer(); + gl.bindFramebuffer(gl.FRAMEBUFFER, fbo); + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0); + gl.bindFramebuffer(gl.FRAMEBUFFER, null); + + // fill the framebuffer // + gl.bindFramebuffer(gl.FRAMEBUFFER, fbo); + gl.viewport(0, 0, 32, 32); + gl.clearColor(1, 0, 1, 1); + gl.clear(gl.COLOR_BUFFER_BIT); + gl.bindFramebuffer(gl.FRAMEBUFFER, null); + + // generate mipmap // + gl.bindTexture(gl.TEXTURE_2D, texture); + gl.generateMipmap(gl.TEXTURE_2D); + + var program = wtu.setupTexturedQuad(gl); + gl.viewport(0, 0, gl.canvas.width, gl.canvas.height); + gl.drawArrays(gl.TRIANGLES, 0, 6); + + // readback // + wtu.checkCanvas(gl, [255, 0, 255, 255]); +} + +var testCubemapFaceWithIncompleteMipmapInFBO = function() { + // Create a cube map texture that's not mipmap complete. + var tex2 = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_CUBE_MAP, tex2); + gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.LINEAR); + gl.texParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR); + + var cube_map_faces = [ + gl.TEXTURE_CUBE_MAP_POSITIVE_X, + gl.TEXTURE_CUBE_MAP_NEGATIVE_X, + gl.TEXTURE_CUBE_MAP_POSITIVE_Y, + gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, + gl.TEXTURE_CUBE_MAP_POSITIVE_Z, + gl.TEXTURE_CUBE_MAP_NEGATIVE_Z + ]; + for (var i = 0; i < cube_map_faces.length; ++i) { + gl.texImage2D(cube_map_faces[i], 0, gl.RGBA, 32, 32, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); + } + + var fb2 = gl.createFramebuffer(); + gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); + gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_CUBE_MAP_POSITIVE_X, tex2, 0); + wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors after attaching cube map face."); + shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE"); + gl.bindTexture(gl.TEXTURE_CUBE_MAP, null); + + var colorProgram = wtu.setupColorQuad(gl); + var colorLocation = gl.getUniformLocation(colorProgram, 'u_color'); + gl.uniform4f(colorLocation, 0.0, 1.0, 0.0, 1.0); + gl.viewport(0, 0, 32, 32); + wtu.drawUnitQuad(gl); + // Read what's in the framebuffer - note that we need to use checkCanvasRect since the + // FB dimensions are different from canvas dimensions. + wtu.checkCanvasRect(gl, 0, 0, 32, 32, [0, 255, 0, 255], + "Framebuffer with a non-mipmap complete cube map attachment should be green"); +} + +testMipmapGeneration(); +debug(""); +testCubemapFaceWithIncompleteMipmapInFBO(); + +var successfullyParsed = true; +</script> +<script src="../../../js/js-test-post.js"></script> + +</body> +</html> + |