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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL Draw Buffers Conformance 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> |
| <script src="../../js/tests/webgl-draw-buffers-utils.js"></script> |
| </head> |
| <body> |
| <div id="description"></div> |
| <canvas id="canvas" width="64" height="64"> </canvas> |
| <div id="console"></div> |
| <script id="vshaderESSL3" type="x-shader/x-vertex">#version 300 es |
| in vec4 a_position; |
| void main() { |
| gl_Position = a_position; |
| } |
| </script> |
| <script id="vshaderESSL1" type="x-shader/x-vertex"> |
| attribute vec4 a_position; |
| void main() { |
| gl_Position = a_position; |
| } |
| </script> |
| <script id="fshader" type="x-shader/x-fragment">#version 300 es |
| precision mediump float; |
| uniform vec4 u_colors[$(numDrawingBuffers)]; |
| |
| // Only one out variable - does not need explicit output layout (ESSL 3 section 4.3.8.2) |
| out vec4 my_FragData[$(numDrawingBuffers)]; |
| void main() { |
| $(assignUColorsToFragData) |
| } |
| </script> |
| <script id="fshaderDiscard" type="x-shader/x-fragment">#version 300 es |
| precision mediump float; |
| uniform vec4 u_colors[$(numDrawingBuffers)]; |
| uniform float u_zero; |
| |
| // Only one out variable - does not need explicit output layout (ESSL 3 section 4.3.8.2) |
| out vec4 my_FragData[$(numDrawingBuffers)]; |
| void main() { |
| $(assignUColorsToFragData) |
| if (u_zero < 1.0) { |
| discard; |
| } |
| } |
| </script> |
| <script id="fshaderRed" type="x-shader/x-fragment">#version 300 es |
| precision mediump float; |
| |
| out vec4 my_FragColor; |
| void main() { |
| my_FragColor = vec4(1, 0, 0, 1); |
| } |
| </script> |
| <script id="fshaderBlueESSL1" type="x-shader/x-fragment"> |
| precision mediump float; |
| |
| void main() { |
| gl_FragColor = vec4(0, 0, 1, 1); |
| } |
| </script> |
| <script id="fshaderBuiltInConstEnabled" type="x-shader/x-fragment">#version 300 es |
| precision mediump float; |
| |
| out vec4 my_FragColor; |
| void main() { |
| my_FragColor = (gl_MaxDrawBuffers == $(numDrawingBuffers)) ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1); |
| } |
| </script> |
| <script> |
| "use strict"; |
| description("This test verifies the functionality of Multiple Render Targets."); |
| |
| debug(""); |
| |
| var wtu = WebGLTestUtils; |
| var canvas = document.getElementById("canvas"); |
| var gl = wtu.create3DContext(canvas, null, 2); |
| var drawBuffersUtils; |
| |
| if (!gl) { |
| testFailed("WebGL context does not exist"); |
| } else { |
| testPassed("WebGL context exists"); |
| drawBuffersUtils = WebGLDrawBuffersUtils(gl); |
| |
| if (testParameters()) { |
| runShadersTest(); |
| runAttachmentTest(); |
| runDrawTests(); |
| } |
| |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); |
| } |
| |
| function createDrawBuffersProgram(scriptId, sub) { |
| var fsource = wtu.getScript(scriptId); |
| fsource = wtu.replaceParams(fsource, sub); |
| return wtu.setupProgram(gl, ["vshaderESSL3", fsource], ["a_position"], undefined, true); |
| } |
| |
| function runShadersTest() { |
| debug(""); |
| debug("test shaders"); |
| |
| var sub = {numDrawingBuffers: gl.getParameter(gl.MAX_DRAW_BUFFERS)}; |
| var program = createDrawBuffersProgram("fshaderBuiltInConstEnabled", sub); |
| wtu.setupUnitQuad(gl); |
| wtu.clearAndDrawUnitQuad(gl); |
| wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green"); |
| gl.deleteProgram(program); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); |
| } |
| |
| function makeArray(size, value) { |
| var array = [] |
| for (var ii = 0; ii < size; ++ii) { |
| array.push(value); |
| } |
| return array; |
| } |
| |
| function runAttachmentTest() { |
| debug(""); |
| debug("test attachment enabled"); |
| |
| var maxDrawingBuffers = gl.getParameter(gl.MAX_DRAW_BUFFERS); |
| var maxColorAttachments = gl.getParameter(gl.MAX_COLOR_ATTACHMENTS); |
| |
| var tex = gl.createTexture(); |
| var fb = gl.createFramebuffer(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + maxColorAttachments, gl.TEXTURE_2D, tex, 0); |
| wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "should not be able to attach pass the max attachment point: gl.COLOR_ATTACHMENT0 + " + maxColorAttachments); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + maxColorAttachments - 1, gl.TEXTURE_2D, tex, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be able to attach to the max attachment point: gl.COLOR_ATTACHMENT0 + " + (maxColorAttachments - 1)); |
| gl.drawBuffers(makeArray(maxDrawingBuffers, gl.NONE)); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be able to call drawBuffers with array NONE of size " + maxColorAttachments); |
| var bufs = drawBuffersUtils.makeColorAttachmentArray(maxDrawingBuffers); |
| gl.drawBuffers(bufs); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be able to call drawBuffers with array attachments of size " + maxColorAttachments); |
| bufs[0] = gl.NONE; |
| gl.drawBuffers(bufs); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be able to call drawBuffers with mixed array attachments of size " + maxColorAttachments); |
| if (maxDrawingBuffers > 1) { |
| bufs[0] = gl.COLOR_ATTACHMENT1; |
| bufs[1] = gl.COLOR_ATTACHMENT0; |
| gl.drawBuffers(bufs); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, "should not be able to call drawBuffers with out of order attachments of size " + maxColorAttachments); |
| var bufs = drawBuffersUtils.makeColorAttachmentArray(Math.floor(maxDrawingBuffers / 2)); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be able to call drawBuffers with short array of attachments of size " + bufs.length); |
| } |
| |
| gl.deleteFramebuffer(fb); |
| gl.deleteTexture(tex); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors"); |
| } |
| |
| function makeColorByIndex(index) { |
| var low = (index - 1) % 15 + 1; |
| var high = (index - 1) / 15; |
| |
| var zeroOrOne = function(v) { |
| return v ? 1 : 0; |
| }; |
| |
| var oneOrTwo = function(v) { |
| return v ? 2 : 1; |
| } |
| |
| var makeComponent = function(b0, b1, b2) { |
| return Math.floor(255 * zeroOrOne(b0) / oneOrTwo(b1) / oneOrTwo(b2)); |
| }; |
| return [ |
| makeComponent(low & (1 << 0), high & (1 << 0), high & (1 << 4)), |
| makeComponent(low & (1 << 1), high & (1 << 1), high & (1 << 5)), |
| makeComponent(low & (1 << 2), high & (1 << 2), high & (1 << 6)), |
| makeComponent(low & (1 << 3), high & (1 << 3), high & (1 << 7)), |
| ]; |
| } |
| |
| function runDrawTests() { |
| debug(""); |
| debug("--------- draw tests -----------"); |
| var fb = gl.createFramebuffer(); |
| var fb2 = gl.createFramebuffer(); |
| var halfFB1 = gl.createFramebuffer(); |
| var halfFB2 = gl.createFramebuffer(); |
| var endsFB = gl.createFramebuffer(); |
| var middleFB = gl.createFramebuffer(); |
| |
| var maxDrawingBuffers = gl.getParameter(gl.MAX_DRAW_BUFFERS); |
| var maxUsable = drawBuffersUtils.getMaxUsableColorAttachments(); |
| var half = Math.floor(maxUsable / 2); |
| var bufs = drawBuffersUtils.makeColorAttachmentArray(maxUsable); |
| var nones = makeArray(maxUsable, gl.NONE); |
| |
| [fb, fb2, halfFB1, halfFB2, endsFB, middleFB].forEach(function(fbo) { |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fbo); |
| gl.drawBuffers(bufs); |
| }); |
| |
| var checkProgram = wtu.setupTexturedQuad(gl); |
| var redProgram = wtu.setupProgram(gl, ["vshaderESSL3", "fshaderRed"], ["a_position"]); |
| var blueProgramESSL1 = wtu.setupProgram(gl, ["vshaderESSL1", "fshaderBlueESSL1"], ["a_position"]); |
| |
| var assignCode = []; |
| for (var i = 0; i < maxDrawingBuffers; ++i) { |
| assignCode.push(" my_FragData[" + i + "] = u_colors[" + i + "];"); |
| } |
| |
| var drawProgram = createDrawBuffersProgram("fshader", |
| {numDrawingBuffers: maxDrawingBuffers, assignUColorsToFragData: assignCode.join("\n")}); |
| var width = 64; |
| var height = 64; |
| var attachments = []; |
| // Makes 6 framebuffers. |
| // fb and fb2 have all the attachments. |
| // halfFB1 has the first half of the attachments |
| // halfFB2 has the second half of the attachments |
| // endsFB has the first and last attachments |
| // middleFB has all but the first and last attachments |
| for (var ii = 0; ii < maxUsable; ++ii) { |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + ii, gl.TEXTURE_2D, tex, 0); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + ii, gl.TEXTURE_2D, tex, 0); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, ii < half ? halfFB1 : halfFB2); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + ii, gl.TEXTURE_2D, tex, 0); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, (ii == 0 || ii == (maxUsable - 1)) ? endsFB : middleFB); |
| gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + ii, gl.TEXTURE_2D, tex, 0); |
| var location = gl.getUniformLocation(drawProgram, "u_colors[" + ii + "]"); |
| var color = makeColorByIndex(ii + 1); |
| var floatColor = [color[0] / 255, color[1] / 255, color[2] / 255, color[3] / 255]; |
| gl.uniform4fv(location, floatColor); |
| attachments.push({ |
| texture: tex, |
| color: color |
| }); |
| } |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); |
| shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE"); |
| |
| var drawAndCheckAttachments = function(testFB, msg, testFn) { |
| debug("test clearing " + msg); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, testFB); |
| |
| attachments.forEach(function(attachment, index) { |
| debug("attachment: " + index + " = " + wtu.glEnumToString(gl, gl.getParameter(gl.DRAW_BUFFER0 + index)) + |
| ", " + wtu.glEnumToString(gl, gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0 + index, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE))); |
| }); |
| |
| if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) { |
| debug("framebuffer not complete"); |
| debug(""); |
| return; |
| } |
| |
| // Clear all the attachments |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); |
| gl.clearColor(0, 0, 0, 0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| //drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| // return [0, 0, 0, 0]; |
| //}); |
| //debug("--"); |
| |
| // Clear some attachments using testFB |
| gl.bindFramebuffer(gl.FRAMEBUFFER, testFB); |
| |
| gl.clearColor(0, 1, 0, 1); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| return testFn(attachment, index) ? [0, 255, 0, 255] : [0, 0, 0, 0]; |
| }); |
| |
| debug("test drawing to " + msg); |
| |
| // Draw to some attachments using testFB |
| gl.useProgram(drawProgram); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, testFB); |
| wtu.drawUnitQuad(gl); |
| |
| drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| return testFn(attachment, index) ? attachment.color : [0, 0, 0, 0]; |
| }); |
| }; |
| |
| gl.useProgram(drawProgram); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); |
| gl.drawBuffers(bufs); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(bufs); |
| |
| wtu.drawUnitQuad(gl); |
| |
| debug("test that each texture got the correct color."); |
| |
| drawBuffersUtils.checkAttachmentsForColor(attachments); |
| |
| debug("test clearing clears all the textures"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.clearColor(0, 1, 0, 1); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| |
| drawBuffersUtils.checkAttachmentsForColor(attachments, [0, 255, 0, 255]); |
| |
| debug("test that NONE draws nothing"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(nones); |
| gl.useProgram(redProgram); |
| wtu.clearAndDrawUnitQuad(gl); |
| |
| drawBuffersUtils.checkAttachmentsForColor(attachments, [0, 255, 0, 255]); |
| |
| // GLES3 spec section 3.9.2 Shader Outputs |
| debug("test that gl_FragColor only writes to color number zero"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(bufs); |
| gl.useProgram(blueProgramESSL1); |
| wtu.drawUnitQuad(gl); |
| |
| drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| return (index == 0) ? [0, 0, 255, 255] : [0, 255, 0, 255]; |
| }); |
| |
| // If there is only a single output, the location defaults to zero if not specified. |
| // See GLSL ES Spec 3.00.4, Section 4.3.8.2, Output Layout Qualifiers. |
| debug("test that an OpenGL ES Shading Language 3.00 shader with a single output color defaults to color number zero"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(bufs); |
| gl.useProgram(redProgram); |
| wtu.drawUnitQuad(gl); |
| |
| drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| return (index == 0) ? [255, 0, 0, 255] : [0, 255, 0, 255]; |
| }); |
| |
| if (maxUsable > 1) { |
| // Prepare for following tests by clearing all attachments to red. |
| debug("prepare by clearing all attachments to red"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(bufs); |
| gl.clearColor(1, 0, 0, 1); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| drawBuffersUtils.checkAttachmentsForColor(attachments, [255, 0, 0, 255]); |
| |
| var bufs1 = drawBuffersUtils.makeColorAttachmentArray(maxUsable); |
| var bufs2 = drawBuffersUtils.makeColorAttachmentArray(maxUsable); |
| for (var ii = 0; ii < maxUsable; ++ii) { |
| if (ii < half) { |
| bufs1[ii] = gl.NONE; |
| } else { |
| bufs2[ii] = gl.NONE; |
| } |
| } |
| |
| debug("test setting first half to NONE and clearing"); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(bufs1); |
| gl.clearColor(0, 1, 0, 1); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| |
| drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| return index < half ? [255, 0, 0, 255] : [0, 255, 0, 255]; |
| }); |
| |
| debug("test setting first half to NONE and drawing"); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.useProgram(drawProgram); |
| wtu.drawUnitQuad(gl); |
| |
| drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| return index < half ? [255, 0, 0, 255] : attachment.color; |
| }); |
| |
| debug("test setting second half to NONE and clearing"); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(bufs); |
| gl.clearColor(1, 0, 0, 1); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| gl.drawBuffers(bufs2); |
| gl.clearColor(0, 0, 1, 1); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| return index < half ? [0, 0, 255, 255] : [255, 0, 0, 255]; |
| }); |
| |
| debug("test setting second half to NONE and drawing"); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.useProgram(drawProgram); |
| wtu.drawUnitQuad(gl); |
| |
| drawBuffersUtils.checkAttachmentsForColorFn(attachments, function(attachment, index) { |
| return index < half ? attachment.color : [255, 0, 0, 255]; |
| }); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, halfFB1); |
| gl.drawBuffers(bufs); |
| drawAndCheckAttachments( |
| halfFB1, "framebuffer that only has first half of attachments", |
| function(attachment, index) { |
| return index < half; |
| }); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, halfFB2); |
| gl.drawBuffers(bufs); |
| drawAndCheckAttachments( |
| halfFB2, "framebuffer that only has second half of attachments", |
| function(attachment, index) { |
| return index >= half; |
| }); |
| |
| if (maxUsable > 2) { |
| gl.bindFramebuffer(gl.FRAMEBUFFER, endsFB); |
| gl.drawBuffers(bufs); |
| drawAndCheckAttachments( |
| endsFB, "framebuffer that only has first and last attachments", |
| function(attachment, index) { |
| return index == 0 || index == (maxUsable - 1); |
| }); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, middleFB); |
| gl.drawBuffers(bufs); |
| drawAndCheckAttachments( |
| middleFB, |
| "framebuffer that has all but the first and last attachments", |
| function(attachment, index) { |
| return index != 0 && index != (maxUsable - 1); |
| }); |
| } |
| } |
| |
| debug("test switching between fbos keeps drawbuffer state"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); |
| gl.drawBuffers(nones); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(bufs); |
| gl.clearColor(1, 0, 0, 1); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| drawBuffersUtils.checkAttachmentsForColor(attachments, [255, 0, 0, 255]); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); |
| gl.useProgram(drawProgram); |
| wtu.drawUnitQuad(gl); |
| drawBuffersUtils.checkAttachmentsForColor(attachments, [255, 0, 0, 255]); |
| |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.useProgram(drawProgram); |
| wtu.drawUnitQuad(gl); |
| drawBuffersUtils.checkAttachmentsForColor(attachments); |
| |
| debug("test that none of the attachments are written in case the fragment shader discards"); |
| var discardProgram = createDrawBuffersProgram("fshaderDiscard", |
| {numDrawingBuffers: maxDrawingBuffers, assignUColorsToFragData: assignCode.join("\n")}); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.drawBuffers(bufs); |
| gl.clearColor(0, 0, 0, 0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| gl.useProgram(discardProgram); |
| wtu.drawUnitQuad(gl); |
| drawBuffersUtils.checkAttachmentsForColor(attachments, [0, 0, 0, 0]); |
| |
| debug("test queries"); |
| debug("check framebuffer with all attachments on"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| for (var ii = 0; ii < maxUsable; ++ii) { |
| shouldBe("gl.getParameter(gl.DRAW_BUFFER0 + " + ii + ")", "gl.COLOR_ATTACHMENT0 + " + ii); |
| } |
| |
| debug("check framebuffer with all attachments off"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); |
| for (var ii = 0; ii < maxUsable; ++ii) { |
| shouldBe("gl.getParameter(gl.DRAW_BUFFER0 + " + ii + ")", "gl.NONE"); |
| } |
| |
| // WebGL generates FRAMEBUFFER_INCOMPLETE_DIMENSIONS when attached images have different sizes. |
| // This behavior differs from GLES 3. |
| debug(""); |
| debug("test attachment size mis-match"); |
| gl.bindTexture(gl.TEXTURE_2D, attachments[0].texture); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width * 2, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| shouldBeTrue("gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_INCOMPLETE_DIMENSIONS"); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb2); |
| shouldBeTrue("gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_INCOMPLETE_DIMENSIONS"); |
| |
| // TODO: Rendering when framebuffer attachments have mismatched size should be tested, maybe in a separate test. |
| |
| gl.deleteFramebuffer(fb); |
| gl.deleteFramebuffer(fb2); |
| gl.deleteFramebuffer(halfFB1); |
| gl.deleteFramebuffer(halfFB2); |
| attachments.forEach(function(attachment) { |
| gl.deleteTexture(attachment.texture); |
| }); |
| gl.deleteProgram(checkProgram); |
| gl.deleteProgram(redProgram); |
| gl.deleteProgram(drawProgram); |
| } |
| |
| function testParameters() { |
| debug(""); |
| debug("check that MAX_DRAW_BUFFERS and MAX_COLOR_ATTACHMENTS are valid"); |
| var maxDrawBuffers = gl.getParameter(gl.MAX_DRAW_BUFFERS); |
| var maxColorAttachments = gl.getParameter(gl.MAX_COLOR_ATTACHMENTS); |
| debug("MAX_DRAW_BUFFERS = " + maxDrawBuffers); |
| debug("MAX_COLOR_ATTACHMENTS = " + maxColorAttachments); |
| if (maxDrawBuffers != maxColorAttachments) { |
| testFailed("MAX_DRAW_BUFFERS and MAX_COLOR_ATTACHMENTS should be the same"); |
| return false; |
| } |
| if (maxDrawBuffers < 4) { |
| testFailed("MAX_DRAW_BUFFERS should be at least 4"); |
| return false; |
| } |
| return true; |
| } |
| |
| debug(""); |
| var successfullyParsed = true; |
| </script> |
| <script src="../../js/js-test-post.js"></script> |
| |
| </body> |
| </html> |