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| ** Copyright (c) 2017 The Khronos Group Inc. |
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| ** "Materials"), to deal in the Materials without restriction, including |
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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL R11F_G11F_B10F BlitFramebuffer Tests</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> |
| <script> |
| "use strict"; |
| |
| var wtu = WebGLTestUtils; |
| description("This tests multisample blitting with the R11F_G11F_B10F format."); |
| |
| var width = 8; |
| var height = 8; |
| |
| function runWithContextCreationArguments(args) { |
| debug(''); |
| debug('Running test with arguments: ' + JSON.stringify(args)); |
| |
| var canvas = document.createElement('canvas'); |
| canvas.width = width; |
| canvas.height = height; |
| |
| var gl = wtu.create3DContext(canvas, args, 2); |
| if (!gl) { |
| testFailed("WebGL 2.0 context does not exist"); |
| return; |
| } |
| |
| var ext = gl.getExtension("EXT_color_buffer_float"); |
| if (!ext) { |
| testPassed("EXT_color_buffer_float extension not supported"); |
| return; |
| } |
| |
| var samples = gl.getInternalformatParameter(gl.RENDERBUFFER, gl.R11F_G11F_B10F, gl.SAMPLES); |
| |
| // Set up source framebuffer. |
| var rb = gl.createRenderbuffer(); |
| gl.bindRenderbuffer(gl.RENDERBUFFER, rb); |
| gl.renderbufferStorageMultisample(gl.RENDERBUFFER, samples[0], gl.R11F_G11F_B10F, width, height); |
| var readfb = gl.createFramebuffer(); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, readfb); |
| gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rb); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after multisampled R11F_G11F_B10F FBO setup"); |
| if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { |
| testFailed("Source framebuffer incomplete."); |
| return; |
| } |
| |
| // Draw something to that framebuffer. |
| gl.clearColor(0.0, 1.0, 0.0, 1.0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after clearing R11F_G11F_B10F framebuffer"); |
| |
| // Set up destination framebuffer for resolving MSAA. |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.R11F_G11F_B10F, width, height, 0, gl.RGB, gl.UNSIGNED_INT_10F_11F_11F_REV, null); |
| var drawfb = gl.createFramebuffer(); |
| gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, drawfb); |
| gl.framebufferTexture2D(gl.DRAW_FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after destination R11F_G11F_B10F FBO setup"); |
| if (gl.checkFramebufferStatus(gl.DRAW_FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { |
| testFailed("Framebuffer incomplete."); |
| return; |
| } |
| |
| // Attempt a blit. |
| gl.blitFramebuffer(0, 0, width, height, 0, 0, width, height, gl.COLOR_BUFFER_BIT, gl.LINEAR); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after blitFramebuffer for multisample resolve"); |
| |
| // Try a readback. |
| gl.bindFramebuffer(gl.READ_FRAMEBUFFER, drawfb); |
| var readBackBuf = new Float32Array(width * height * 4); |
| wtu.checkCanvasRect(gl, 0, 0, width, height, [0.0, 1.0, 0.0], "should be green", undefined, readBackBuf, gl.FLOAT); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after floating-point canvas readback"); |
| |
| // If default backbuffer is RGB and non-antialiased, test blitting to it too. |
| if (args && !args['alpha'] && !args['antialias']) { |
| gl.bindFramebuffer(gl.READ_FRAMEBUFFER, drawfb); |
| gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, null); |
| gl.blitFramebuffer(0, 0, width, height, 0, 0, width, height, gl.COLOR_BUFFER_BIT, gl.LINEAR); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after blit to default back buffer"); |
| gl.bindFramebuffer(gl.READ_FRAMEBUFFER, null); |
| wtu.checkCanvas(gl, [ 0, 255, 0, 255 ], "default back buffer should be green"); |
| } |
| } |
| |
| // The format of the back buffer should have no effect on the behavior of this test. |
| runWithContextCreationArguments(undefined); |
| runWithContextCreationArguments({ alpha: true, antialias: true }); |
| runWithContextCreationArguments({ alpha: true, antialias: false }); |
| runWithContextCreationArguments({ alpha: false, antialias: true }); |
| runWithContextCreationArguments({ alpha: false, antialias: false }); |
| |
| var successfullyParsed = true; |
| </script> |
| <script src="../../js/js-test-post.js"></script> |
| </body> |
| </html> |