WebGL implementation for Android

Implementation of WebGL in Android WebKit. Exposes a low level 3D graphics API based on OpenGL ES 2.0 to JavaScript. WebGL is not compiled by default. It can be enabled by setting ENABLE_WEBGL = true in your device BoardConfig.mk or directly in external/webkit/Android.mk. Includes runtime enablement through Browser Settings -> Labs menu. Enable WebGL debug logs and FPS timing with: adb shell setprop debug.webgl 1 Includes Cross-origin resource sharing support. Includes fixes for the following Khronos WebGL 1.0.1. tests: - premultiplyalpha-test.html - struct-nesting-exceeds-maximum.html - index-validation.html - context-attributes-alpha-depth-stencil-antialias.html - program-test.html - object-deletion-behaviour.html Squashed patches: ----------------------------------------------------------- WebGL implementation for Android Implementation of WebGL in Android WebKit. Exposes a low level 3D graphics API based on OpenGL ES 2.0 to JavaScript. WebGL is not compiled by default. It can be enabled by setting ENABLE_WEBGL = true in your device BoardConfig.mk or directly in external/webkit/Android.mk. It is also disabled by default (in WebSettings.cpp) as required by Khronos until it reaches 100% conformance. -- From: Anders Edenbrandt <anders.edenbrandt@sonyericsson.com> Date: Thu, 26 Jan 2012 11:48:41 +0100 WebGL bug fixes and updates Some updates: - stability fixes - image decoder - redesign of how the FBOs are used - other bug fixes -- From: Anders Edenbrandt <anders.edenbrandt@sonyericsson.com> Date: Tue, 31 Jan 2012 17:20:13 +0100 WebGL code cleanup and bug fixes -- From: Anders Edenbrandt <anders.edenbrandt@sonyericsson.com> Date: Thu Mar 15 10:15:33 2012 +0100 More improvements and bug fixes Updates: - cleaned up buffer handling, allowing for arbitrary number of buffers - removed rect from invalidation - removed screen update request from drawGL - releasing buffers when the browser is paused - added missing method 'slice' for typed arrays - fixed bug in bindFramebuffer https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=c72ff2aa562941d94ceb51ba685d60809ca882a6 Updates to fix some test failures in Khronos Conformance Test Suite: - Increase max identifier length in shaders to 256 - Add length check on uniforms and attributes - Add minimal support for compressed textures (that is, just return the correct error codes) - Add support for Uint8ClampedByteArray - Modify how error checking is done on framebuffer operations - Activate the GL_OES_packed_depth_stencil extension - Activate the GL_OES_texture_float extension https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=5bfe05848c12a2894697fbb503cfa79981eb96bd Fix WebGL 1.0.1 premultiplyalpha-test conformance test Fixing bug with toDataURL when called against a Canvas in which WebGL content is being rendered and make sure paintRenderingResultsToImageData isn't used for the premultiplied case. ihttps://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=5834a1e00f89d898a7a0039d47916b196e40a2c8 Update ANGLE to r1009 to fix WebGL 1.0.1 conformance test Fixes struct-nesting-exceeds-maximum Khronos WebGL conformance test. https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=ae2392db6360b41a5717f3770a9e63b1bcea45d6 vertexAttribPointer needs to reject large negative offsets https://bugs.webkit.org/show_bug.cgi?id=85117 Reviewed by Kenneth Russell. Source/WebCore: * html/canvas/WebGLRenderingContext.cpp: Use long long for GLsizeiptr and GLintptr (WebCore): (WebCore::WebGLRenderingContext::bufferData): (WebCore::WebGLRenderingContext::bufferSubData): (WebCore::WebGLRenderingContext::drawElements): (WebCore::WebGLRenderingContext::getVertexAttribOffset): (WebCore::WebGLRenderingContext::vertexAttribPointer): * html/canvas/WebGLRenderingContext.h: Ditto (WebGLRenderingContext): * html/canvas/WebGLRenderingContext.idl: Ditto LayoutTests: * fast/canvas/webgl/index-validation-expected.txt: * fast/canvas/webgl/index-validation.html: Add a test case for large negative offset. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@116374 268f45cc-cd09-0410-ab3c-d52691b4dbfc https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=b3a02a0942a0e2c44d23961382145fad6016b2ef Fix for context-attributes-alpha-depth-stencil-antialias Support for alpha, depth and stencil to fix WebGL Khronos 1.0.1 conformance test. Report back that antialiasing is not supported on our platform. https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=22e98195ac73e7e12a59d5b9a42dfc4e2252b475 WebGLRenderingContext should defer caching program info https://bugs.webkit.org/show_bug.cgi?id=83513 Reviewed by Kenneth Russell. * html/canvas/WebGLProgram.cpp: (WebCore::WebGLProgram::WebGLProgram): (WebCore::WebGLProgram::numActiveAttribLocations): call cacheInfoIfNeeded(); (WebCore::WebGLProgram::getActiveAttribLocation): Ditto. (WebCore::WebGLProgram::isUsingVertexAttrib0): Ditto. (WebCore::WebGLProgram::getLinkStatus): Ditto. (WebCore): (WebCore::WebGLProgram::cacheActiveAttribLocations): (WebCore::WebGLProgram::cacheInfoIfNeeded): Cache link status, active attire locations, etc if needed. (WebCore::WebGLProgram::increaseLinkCount): also invalidate cached info. * html/canvas/WebGLProgram.h: (WebGLProgram): * html/canvas/WebGLRenderingContext.cpp: (WebCore): (WebCore::WebGLRenderingContext::linkProgram): Do not cache program info immediately. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@113915 268f45cc-cd09-0410-ab3c-d52691b4dbfc https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=66bc9c1b9eb5151b1b236199d0eeb17df0557b47 Runtime enablement of WebGL Hooks up with the Java side to enable/disable WebGL through the debug menu. https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=75aab57859de45a0aaec5a7cad41a12111e9a82e Support the usage of CORS for WebGL and the 2D canvas Factor CORS request preparation out of DocumentThreadableLoader https://bugs.webkit.org/show_bug.cgi?id=61209 2011-05-20 Adam Barth <abarth@webkit.org> Reviewed by Alexey Proskuryakov. Factor CORS request preparation out of DocumentThreadableLoader https://bugs.webkit.org/show_bug.cgi?id=61209 DocumentThreadableLoader has two jobs: 1) Proxy loads between threads. 2) Run the CORS state machine. This patch begins the work of separating those concerns, allowing CORS to be used elsewhere in the loading pipeline. In particular, this patch moves knowledge of how to prepare CORS requests out of DocumentThreadableLoder. * loader/CrossOriginAccessControl.cpp: (WebCore::isOnAccessControlSimpleRequestHeaderWhitelist): (WebCore::updateRequestForAccessControl): (WebCore::createAccessControlPreflightRequest): * loader/CrossOriginAccessControl.h: * loader/DocumentThreadableLoader.cpp: (WebCore::DocumentThreadableLoader::DocumentThreadableLoader): (WebCore::DocumentThreadableLoader::makeSimpleCrossOriginAccessRequest): (WebCore::DocumentThreadableLoader::makeCrossOriginAccessRequestWithPreflight): git-svn-id: http://svn.webkit.org/repository/webkit/trunk@86980 268f45cc-cd09-0410-ab3c-d52691b4dbfc Add rel type prerender to distinguish prerender from prefetch https://bugs.webkit.org/show_bug.cgi?id=61079 2011-05-21 Gavin Peters <gavinp@chromium.org> Reviewed by Adam Barth. Add rel type prerender to distinguish prerender from prefetch https://bugs.webkit.org/show_bug.cgi?id=61079 Chrome right now uses <link rel=prefetch ...> for one of two things, to warm the cache in the same way as firefox, or to launch a speculative rendering of a web page, for faster "loading" when the user navigates to it. This new rel type will let us distinguish the two cases; the rel type prerender isn't used on the web today, but the Google Web Search example prerendering application is ready to experiment with it. * fast/dom/HTMLLinkElement/prerender-expected.txt: Added. * fast/dom/HTMLLinkElement/prerender.html: Added. * platform/gtk/Skipped: * platform/mac/Skipped: * platform/qt/Skipped: * platform/win/Skipped: 2011-05-21 Gavin Peters <gavinp@chromium.org> Reviewed by Adam Barth. Add rel type prerender to distinguish prerender from prefetch https://bugs.webkit.org/show_bug.cgi?id=61079 Chrome right now uses <link rel=prefetch ...> for one of two things, to warm the cache in the same way as firefox, or to launch a speculative rendering of a web page, for faster "loading" when the user navigates to it. This new rel type will let us distinguish the two cases; the rel type prerender isn't used on the web today, but the Google Web Search example prerendering application is ready to experiment with it. Test: fast/dom/HTMLLinkElement/prerender.html * html/HTMLLinkElement.cpp: (WebCore::HTMLLinkElement::tokenizeRelAttribute): (WebCore::HTMLLinkElement::process): * html/HTMLLinkElement.h: (WebCore::HTMLLinkElement::RelAttribute::RelAttribute): * loader/cache/CachedResource.cpp: (WebCore::defaultPriorityForResourceType): * loader/cache/CachedResource.h: (WebCore::CachedResource::isLinkResource): * loader/cache/CachedResourceLoader.cpp: (WebCore::createResource): (WebCore::CachedResourceLoader::requestLinkResource): (WebCore::CachedResourceLoader::canRequest): * loader/cache/CachedResourceLoader.h: * loader/cache/CachedResourceRequest.cpp: (WebCore::cachedResourceTypeToTargetType): (WebCore::CachedResourceRequest::load): * platform/network/ResourceRequestBase.h: git-svn-id: http://svn.webkit.org/repository/webkit/trunk@87020 268f45cc-cd09-0410-ab3c-d52691b4dbfc Make CachedResource take a ResourceRequest instead of just a url string. 2011-05-24 Nate Chapin <japhet@chromium.org> Reviewed by Adam Barth. Change CachedResources to take a ResourceRequest instead of a url in their constructors and provide a very minimal set of cases for avoiding reusing a CachedResource. The ResourceRequest part of this change requires pushing responsibility for calling Document::completeURL() to the caller, instead of CachedResourceLoader, since ResourceRequest ASSERTs if it is constructed with an invalid url. https://bugs.webkit.org/show_bug.cgi?id=61318 Refactor, no new tests. * css/CSSFontSelector.cpp: (WebCore::CSSFontSelector::addFontFaceRule): * css/CSSImageValue.cpp: (WebCore::CSSImageValue::cachedImage): * css/CSSImportRule.cpp: (WebCore::CSSImportRule::insertedIntoParent): * dom/ProcessingInstruction.cpp: (WebCore::ProcessingInstruction::checkStyleSheet): * dom/ScriptElement.cpp: (WebCore::ScriptElement::requestScript): * html/HTMLLinkElement.cpp: (WebCore::HTMLLinkElement::process): * loader/ImageLoader.cpp: (WebCore::ImageLoader::updateFromElement): * loader/cache/CachedCSSStyleSheet.cpp: (WebCore::CachedCSSStyleSheet::CachedCSSStyleSheet): (WebCore::CachedCSSStyleSheet::didAddClient): (WebCore::CachedCSSStyleSheet::checkNotify): * loader/cache/CachedCSSStyleSheet.h: * loader/cache/CachedFont.cpp: (WebCore::CachedFont::CachedFont): * loader/cache/CachedFont.h: * loader/cache/CachedImage.cpp: (WebCore::CachedImage::CachedImage): (WebCore::CachedImage::checkShouldPaintBrokenImage): * loader/cache/CachedImage.h: * loader/cache/CachedResource.cpp: (WebCore::CachedResource::CachedResource): (WebCore::reuseRequest): (WebCore::CachedResource::allowReuseOfRequest): (WebCore::CachedResource::removeClient): (WebCore::CachedResource::canUseCacheValidator): * loader/cache/CachedResource.h: (WebCore::CachedResource::resourceRequest): (WebCore::CachedResource::url): * loader/cache/CachedResourceLoader.cpp: * loader/cache/CachedResourceLoader.h: * loader/cache/CachedResourceRequest.cpp: (WebCore::CachedResourceRequest::load): * loader/cache/CachedScript.cpp: (WebCore::CachedScript::CachedScript): * loader/cache/CachedScript.h: * loader/cache/CachedXSLStyleSheet.cpp: (WebCore::CachedXSLStyleSheet::CachedXSLStyleSheet): (WebCore::CachedXSLStyleSheet::didAddClient): (WebCore::CachedXSLStyleSheet::checkNotify): * loader/cache/CachedXSLStyleSheet.h: * svg/SVGFEImageElement.cpp: (WebCore::SVGFEImageElement::requestImageResource): * svg/SVGFontFaceUriElement.cpp: (WebCore::SVGFontFaceUriElement::loadFont): * xml/XSLImportRule.cpp: (WebCore::XSLImportRule::loadSheet): git-svn-id: http://svn.webkit.org/repository/webkit/trunk@87239 268f45cc-cd09-0410-ab3c-d52691b4dbfc Support cross-origin property for images 2011-05-26 Adam Barth <abarth@webkit.org> Reviewed by Eric Seidel. Support cross-origin property for images https://bugs.webkit.org/show_bug.cgi?id=61015 Test various cases involving CORS requests and canvas tainting. * http/tests/security/canvas-remote-read-remote-image-allowed-expected.txt: Added. * http/tests/security/canvas-remote-read-remote-image-allowed-with-credentials-expected.txt: Added. * http/tests/security/canvas-remote-read-remote-image-allowed-with-credentials.html: Added. * http/tests/security/canvas-remote-read-remote-image-allowed.html: Added. * http/tests/security/canvas-remote-read-remote-image-blocked-no-crossorigin-expected.txt: Added. * http/tests/security/canvas-remote-read-remote-image-blocked-no-crossorigin.html: Added. * http/tests/security/resources/abe-allow-credentials.php: Added. * http/tests/security/resources/abe-allow-star.php: Added. 2011-05-26 Adam Barth <abarth@webkit.org> Reviewed by Eric Seidel. Support cross-origin property for images https://bugs.webkit.org/show_bug.cgi?id=61015 This patch add support for the crossorigin attribute of images and teaches 2D canvas to respect that flag and not taint a canvas if the image drawn on the canvas is allowed by CORS. While I was editing this code, I couldn't resist a couple touch-up changes. Tests: http/tests/security/canvas-remote-read-remote-image-allowed-with-credentials.html http/tests/security/canvas-remote-read-remote-image-allowed.html http/tests/security/canvas-remote-read-remote-image-blocked-no-crossorigin.html * html/HTMLAttributeNames.in: * html/HTMLCanvasElement.cpp: (WebCore::HTMLCanvasElement::securityOrigin): * html/HTMLCanvasElement.h: * html/HTMLImageElement.idl: * html/canvas/CanvasRenderingContext.cpp: (WebCore::CanvasRenderingContext::checkOrigin): * html/canvas/CanvasRenderingContext2D.cpp: (WebCore::CanvasRenderingContext2D::createPattern): * loader/ImageLoader.cpp: (WebCore::ImageLoader::updateFromElement): * loader/cache/CachedResource.cpp: (WebCore::CachedResource::passesAccessControlCheck): * loader/cache/CachedResource.h: git-svn-id: http://svn.webkit.org/repository/webkit/trunk@87473 268f45cc-cd09-0410-ab3c-d52691b4dbfc HTMLVideoElement::currentSrc() should return a KURL 2011-05-27 Adam Barth <abarth@webkit.org> Reviewed by Eric Seidel. HTMLVideoElement::currentSrc() should return a KURL https://bugs.webkit.org/show_bug.cgi?id=61578 I suspect we got into this mess because the author of this code didn't know about the URL attribute in WebKit IDL, which is super useful! Bad news: The line of code in question seems to have another bug, which I've documented in a FIXME. Let the yak shaving continue! * html/HTMLMediaElement.cpp: (WebCore::urlForLogging): (WebCore::HTMLMediaElement::loadResource): (WebCore::HTMLMediaElement::isSafeToLoadURL): (WebCore::HTMLMediaElement::selectNextSourceChild): (WebCore::HTMLMediaElement::getPluginProxyParams): * html/HTMLMediaElement.h: (WebCore::HTMLMediaElement::currentSrc): (WebCore::HTMLMediaElement::currentURL): * html/canvas/CanvasRenderingContext.cpp: (WebCore::CanvasRenderingContext::checkOrigin): * rendering/HitTestResult.cpp: (WebCore::HitTestResult::absoluteMediaURL): - This complete URL call was unnecessary because currentSrc is already absolute. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@87539 268f45cc-cd09-0410-ab3c-d52691b4dbfc Disallow use of cross-domain media (images, video) in WebGL 2011-06-09 Kenneth Russell <kbr@google.com> Reviewed by Adam Barth. Disallow use of cross-domain media (images, video) in WebGL https://bugs.webkit.org/show_bug.cgi?id=62257 Updated WebGL implementation to track recent spec updates in this area. Tests: http/tests/security/webgl-remote-read-remote-image-allowed-with-credentials.html http/tests/security/webgl-remote-read-remote-image-allowed.html http/tests/security/webgl-remote-read-remote-image-blocked-no-crossorigin.html * html/canvas/CanvasRenderingContext.cpp: (WebCore::CanvasRenderingContext::wouldTaintOrigin): (WebCore::CanvasRenderingContext::checkOrigin): * html/canvas/CanvasRenderingContext.h: (WebCore::CanvasRenderingContext::checkOrigin): * html/canvas/WebGLRenderingContext.cpp: (WebCore::WebGLRenderingContext::readPixels): (WebCore::WebGLRenderingContext::texImage2D): (WebCore::WebGLRenderingContext::videoFrameToImage): (WebCore::WebGLRenderingContext::texSubImage2D): * html/canvas/WebGLRenderingContext.h: 2011-06-09 Kenneth Russell <kbr@google.com> Reviewed by Adam Barth. Disallow use of cross-domain media (images, video) in WebGL https://bugs.webkit.org/show_bug.cgi?id=62257 Updated origin-clean-conformance.html to track upstream version in Khronos repository. Added new layout tests mirroring those added in bug 61015 which verify that new CORS support for images is working in the context of WebGL. Verified new tests in WebKit and Chromium. Skipped tests on platforms where WebGL is disabled. * http/tests/canvas/webgl/origin-clean-conformance-expected.txt: * http/tests/canvas/webgl/origin-clean-conformance.html: * http/tests/security/webgl-remote-read-remote-image-allowed-expected.txt: Added. * http/tests/security/webgl-remote-read-remote-image-allowed-with-credentials-expected.txt: Added. * http/tests/security/webgl-remote-read-remote-image-allowed-with-credentials.html: Added. * http/tests/security/webgl-remote-read-remote-image-allowed.html: Added. * http/tests/security/webgl-remote-read-remote-image-blocked-no-crossorigin-expected.txt: Added. * http/tests/security/webgl-remote-read-remote-image-blocked-no-crossorigin.html: Added. * platform/gtk/Skipped: * platform/mac-leopard/Skipped: * platform/mac-wk2/Skipped: * platform/qt/Skipped: git-svn-id: http://svn.webkit.org/repository/webkit/trunk@88489 268f45cc-cd09-0410-ab3c-d52691b4dbfc https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=0ddd7c1d91c08fbee6c99b79fa9971a7ac914384 Runtime enablement of WebGL logs Allows enabling WebGL method level logging using: adb shell setprop debug.webgl 1 https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=307d4a2b5b20f2609497ceaea1eca2e29a8a781f Adding WebGL FPS timing to logs Samples WebGL average FPS every 15 frames and outputs to WebGL debug log. TODO: Add setting to browser debug settings that overlays FPS on web pages. Postpone deleteRenderbuffer/deleteTexture until all framebuffer attachment points are removed. https://bugs.webkit.org/show_bug.cgi?id=74741 Reviewed by Kenneth Russell. Source/WebCore: Use WebGLObject's attachment count mechanism to track if a renderbuffer/texture is still attached to framebuffers, and if its deletion should be delated or not. * html/canvas/WebGLFramebuffer.cpp: (WebCore::WebGLFramebuffer::setAttachmentForBoundFramebuffer): (WebCore::WebGLFramebuffer::getAttachment): (WebCore::WebGLFramebuffer::removeAttachmentFromBoundFramebuffer): (WebCore::WebGLFramebuffer::deleteObjectImpl): (WebCore::WebGLFramebuffer::isBound): * html/canvas/WebGLFramebuffer.h: LayoutTests: * fast/canvas/webgl/object-deletion-behaviour-expected.txt: * fast/canvas/webgl/object-deletion-behaviour.html: synced with khronos side. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@103272 268f45cc-cd09-0410-ab3c-d52691b4dbfc https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/webkit.git;a=commit;h=9def386340c74f2a745fb041b1cb11daa30d1a82 ----------------------------------------------------------- (cherry-picked from commit 6d9d732ff06a6b265d02b18d7034068a68ef0fde) Conflicts: Android.mk Source/WebCore/ChangeLog Change-Id: I3bbf993fe5a3d6cea53e019c8fa3912ecd2bd429
author: Pierre-Antoine LaFayette <plafayet@codeaurora.org> 2011-12-29 15:13:33 +0100
committer: Steve Kondik <shade@chemlab.org> 2013-01-20 18:38:26 -0800
commit: 70f026a42cf1bee061389fa6ce790ea1186f0703 (patch)
tree: b0de5b5676433d2382e7cf1307b54edc19fc42a5 /LayoutTests/fast
parent: a815c626d7df7e24ba9e0df27c27735d4e069ffd (diff)
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2 files changed, 741 insertions, 0 deletions
diff --git a/LayoutTests/fast/canvas/webgl/object-deletion-behaviour-expected.txt b/LayoutTests/fast/canvas/webgl/object-deletion-behaviour-expected.txt
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+++ b/LayoutTests/fast/canvas/webgl/object-deletion-behaviour-expected.txt
@@ -0,0 +1,322 @@
+Tests deletion behavior for texture, renderbuffer, shader, and program
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+shader and program deletion
+PASS vertex shader loaded
+PASS fragment shader loaded
+PASS program is non-null.
+PASS gl.attachShader(program, vertexShader) was expected value: NO_ERROR.
+PASS gl.attachShader(program, fragmentShader) was expected value: NO_ERROR.
+PASS gl.linkProgram(program) was expected value: NO_ERROR.
+PASS gl.getProgramParameter(program, gl.LINK_STATUS) is true
+PASS gl.useProgram(program) was expected value: NO_ERROR.
+PASS gl.deleteShader(vertexShader) was expected value: NO_ERROR.
+PASS gl.isShader(vertexShader) is true
+PASS gl.getShaderParameter(vertexShader, gl.DELETE_STATUS) is true
+PASS gl.detachShader(program, vertexShader) was expected value: NO_ERROR.
+PASS gl.isShader(vertexShader) is false
+PASS gl.deleteShader(fragmentShader) was expected value: NO_ERROR.
+PASS gl.isShader(fragmentShader) is true
+PASS gl.getShaderParameter(fragmentShader, gl.DELETE_STATUS) is true
+PASS gl.deleteProgram(program) was expected value: NO_ERROR.
+PASS gl.isProgram(program) is true
+PASS gl.getProgramParameter(program, gl.DELETE_STATUS) is true
+PASS gl.useProgram(null) was expected value: NO_ERROR.
+PASS gl.isProgram(program) is false
+PASS gl.isShader(fragmentShader) is false
+
+texture deletion
+PASS fbo is non-null.
+PASS fbo2 is non-null.
+PASS fbo3 is non-null.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS tex is non-null.
+PASS gl.bindTexture(gl.TEXTURE_2D, tex) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.TEXTURE_BINDING_2D) is tex
+PASS gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0) was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) is tex
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE) is gl.TEXTURE
+PASS gl.deleteTexture(tex) was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE) is gl.NONE
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) was expected value: INVALID_ENUM.
+PASS gl.isTexture(tex) is false
+PASS gl.getParameter(gl.TEXTURE_BINDING_2D) is null
+PASS gl.bindTexture(gl.TEXTURE_2D, tex) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.TEXTURE_BINDING_2D) is null
+PASS texCubeMap is non-null.
+PASS gl.bindTexture(gl.TEXTURE_CUBE_MAP, texCubeMap) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.TEXTURE_BINDING_CUBE_MAP) is texCubeMap
+PASS gl.deleteTexture(texCubeMap) was expected value: NO_ERROR.
+PASS gl.isTexture(texCubeMap) is false
+PASS gl.getParameter(gl.TEXTURE_BINDING_CUBE_MAP) is null
+PASS gl.bindTexture(gl.TEXTURE_CUBE_MAP, texCubeMap) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.TEXTURE_BINDING_CUBE_MAP) is null
+PASS t is non-null.
+PASS gl.bindTexture(gl.TEXTURE_2D, t) was expected value: NO_ERROR.
+PASS gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE) was expected value: NO_ERROR.
+PASS gl.deleteTexture(t) was expected value: NO_ERROR.
+PASS gl.bindTexture(gl.TEXTURE_2D, t) was expected value: NO_ERROR.
+PASS gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE) was expected value: INVALID_OPERATION.
+PASS t2 is non-null.
+PASS gl.activeTexture(gl.TEXTURE0) was expected value: NO_ERROR.
+PASS gl.bindTexture(gl.TEXTURE_2D, t2) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.TEXTURE_BINDING_2D) is t2
+PASS gl.activeTexture(gl.TEXTURE1) was expected value: NO_ERROR.
+PASS gl.bindTexture(gl.TEXTURE_2D, t2) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.TEXTURE_BINDING_2D) is t2
+PASS gl.deleteTexture(t2) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.TEXTURE_BINDING_2D) is null
+PASS gl.activeTexture(gl.TEXTURE0) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.TEXTURE_BINDING_2D) is null
+
+renderbuffer deletion
+PASS rbo is non-null.
+PASS rbo2 is non-null.
+PASS rbo3 is non-null.
+PASS gl.bindRenderbuffer(gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.RENDERBUFFER_BINDING) is rbo
+PASS gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) is rbo
+PASS gl.deleteRenderbuffer(rbo) was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE) is gl.NONE
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) was expected value: INVALID_ENUM.
+PASS gl.isRenderbuffer(rbo) is false
+PASS gl.getParameter(gl.RENDERBUFFER_BINDING) is null
+PASS gl.bindRenderbuffer(gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.RENDERBUFFER_BINDING) is null
+PASS gl.bindRenderbuffer(gl.RENDERBUFFER, rbo2) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.RENDERBUFFER_BINDING) is rbo2
+PASS gl.deleteRenderbuffer(rbo3) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.RENDERBUFFER_BINDING) is rbo2
+
+using deleted renderbuffer
+PASS gl.bindRenderbuffer(gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS gl.clearColor(1,0,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.clearColor(0,1,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS gl.deleteRenderbuffer(rbo) was expected value: NO_ERROR.
+PASS backbuffer should be red
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red") was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS fbo should be green
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,255,0,255], "fbo should be green") was expected value: NO_ERROR.
+PASS gl.clearColor(0,0,1,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS fbo should be blue
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,0,255,255], "fbo should be blue") was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS backbuffer should be red
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red") was expected value: NO_ERROR.
+
+renderbuffer attached twice to same framebuffer
+PASS gl.bindRenderbuffer(gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.bindRenderbuffer(gl.RENDERBUFFER, rbo2) was expected value: NO_ERROR.
+PASS gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16) was expected value: NO_ERROR.
+PASS gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.RENDERBUFFER, rbo2) was expected value: NO_ERROR.
+PASS gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.RENDERBUFFER, rbo2) was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) is rbo2
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) is rbo2
+PASS gl.checkFramebufferStatus(gl.FRAMEBUFFER) is not gl.FRAMEBUFFER_COMPLETE
+PASS gl.deleteRenderbuffer(rbo2) was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE) is gl.NONE
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE) is gl.NONE
+PASS gl.checkFramebufferStatus(gl.FRAMEBUFFER) is gl.FRAMEBUFFER_COMPLETE
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) is rbo
+PASS gl.deleteRenderbuffer(rbo) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+
+using deleted texture
+PASS gl.bindTexture(gl.TEXTURE_2D, tex) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0) was expected value: NO_ERROR.
+PASS gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.clearColor(0,1,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS gl.deleteTexture(tex) was expected value: NO_ERROR.
+PASS backbuffer should be red
+PASS wtu.checkCanvasRect(gl, 0, 0, 1, 1, [255,0,0,255], "backbuffer should be red") was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS fbo should be green
+PASS wtu.checkCanvasRect(gl, 0, 0, 1, 1, [0,255,0,255], "fbo should be green") was expected value: NO_ERROR.
+PASS gl.clearColor(0,0,1,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS fbo should be blue
+PASS wtu.checkCanvasRect(gl, 0, 0, 1, 1, [0,0,255,255], "fbo should be blue") was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS backbuffer should be red
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red") was expected value: NO_ERROR.
+
+using deleted renderbuffer
+PASS rbo is non-null.
+PASS gl.bindRenderbuffer(gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2) was expected value: NO_ERROR.
+PASS gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.checkFramebufferStatus(gl.FRAMEBUFFER) is gl.FRAMEBUFFER_COMPLETE
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS gl.clearColor(1,0,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.clearColor(0,1,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS gl.deleteRenderbuffer(rbo) was expected value: NO_ERROR.
+PASS gl.checkFramebufferStatus(gl.FRAMEBUFFER) is not gl.FRAMEBUFFER_COMPLETE
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2) was expected value: NO_ERROR.
+PASS fbo should be green
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,255,0,255], "fbo should be green") was expected value: NO_ERROR.
+PASS gl.clearColor(0,0,1,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS fbo should be blue
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,0,255,255], "fbo should be blue") was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) is rbo
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) was expected value: INVALID_ENUM.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE) was expected value: NO_ERROR.
+PASS gl.checkFramebufferStatus(gl.FRAMEBUFFER) is not gl.FRAMEBUFFER_COMPLETE
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS backbuffer should be red
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red") was expected value: NO_ERROR.
+
+using deleted texture
+PASS tex is non-null.
+PASS gl.bindTexture(gl.TEXTURE_2D, tex) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0) was expected value: NO_ERROR.
+PASS gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2) was expected value: NO_ERROR.
+PASS gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.clearColor(0,1,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS gl.deleteTexture(tex) was expected value: NO_ERROR.
+PASS gl.checkFramebufferStatus(gl.FRAMEBUFFER) is not gl.FRAMEBUFFER_COMPLETE
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2) was expected value: NO_ERROR.
+PASS gl.checkFramebufferStatus(gl.FRAMEBUFFER) is gl.FRAMEBUFFER_COMPLETE
+PASS fbo should be green
+PASS wtu.checkCanvasRect(gl, 0, 0, 1, 1, [0,255,0,255], "fbo should be green") was expected value: NO_ERROR.
+PASS gl.clearColor(0,0,1,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS fbo should be blue
+PASS wtu.checkCanvasRect(gl, 0, 0, 1, 1, [0,0,255,255], "fbo should be blue") was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) is tex
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME) was expected value: INVALID_ENUM.
+PASS gl.checkFramebufferStatus(gl.FRAMEBUFFER) is not gl.FRAMEBUFFER_COMPLETE
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS backbuffer should be red
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red") was expected value: NO_ERROR.
+
+buffer deletion
+PASS buffer is non-null.
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, buffer) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.ARRAY_BUFFER_BINDING) is buffer
+PASS gl.deleteBuffer(buffer) was expected value: NO_ERROR.
+PASS gl.isBuffer(buffer) is false
+PASS gl.getParameter(gl.ARRAY_BUFFER_BINDING) is null
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, buffer) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.ARRAY_BUFFER_BINDING) is null
+PASS buffer2 is non-null.
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, buffer2) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.ARRAY_BUFFER_BINDING) is buffer2
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, null) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.ARRAY_BUFFER_BINDING) is null
+PASS gl.deleteBuffer(buffer2) was expected value: NO_ERROR.
+PASS gl.isBuffer(buffer2) is false
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, buffer2) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.ARRAY_BUFFER_BINDING) is null
+PASS bufferElement is non-null.
+PASS gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, bufferElement) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING) is bufferElement
+PASS gl.deleteBuffer(bufferElement) was expected value: NO_ERROR.
+PASS gl.isBuffer(bufferElement) is false
+PASS gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING) is null
+PASS gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, bufferElement) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING) is null
+PASS b is non-null.
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, b) was expected value: NO_ERROR.
+PASS gl.bufferData(gl.ARRAY_BUFFER, 1, gl.STATIC_DRAW) was expected value: NO_ERROR.
+PASS gl.deleteBuffer(b) was expected value: NO_ERROR.
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, b) was expected value: NO_ERROR.
+PASS gl.bufferData(gl.ARRAY_BUFFER, 1, gl.STATIC_DRAW) was expected value: INVALID_OPERATION.
+PASS b1 is non-null.
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, b1); was expected value: NO_ERROR.
+PASS gl.enableVertexAttribArray(1); was expected value: NO_ERROR.
+PASS gl.vertexAttribPointer(1, 4, gl.FLOAT, false, 0, 0); was expected value: NO_ERROR.
+PASS b2 is non-null.
+PASS gl.bindBuffer(gl.ARRAY_BUFFER, b2); was expected value: NO_ERROR.
+PASS gl.enableVertexAttribArray(2); was expected value: NO_ERROR.
+PASS gl.vertexAttribPointer(2, 4, gl.FLOAT, false, 0, 0); was expected value: NO_ERROR.
+PASS gl.enableVertexAttribArray(3); was expected value: NO_ERROR.
+PASS gl.vertexAttribPointer(3, 4, gl.FLOAT, false, 0, 0); was expected value: NO_ERROR.
+PASS gl.getVertexAttrib(1, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) is b1
+PASS gl.getVertexAttrib(2, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) is b2
+PASS gl.getVertexAttrib(3, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) is b2
+PASS gl.deleteBuffer(b2); was expected value: NO_ERROR.
+PASS gl.getVertexAttrib(1, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) is b1
+PASS gl.getVertexAttrib(2, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) is null
+PASS gl.getVertexAttrib(3, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) is null
+PASS gl.deleteBuffer(b1); was expected value: NO_ERROR.
+PASS gl.getVertexAttrib(1, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) is null
+
+framebuffer deletion
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.FRAMEBUFFER_BINDING) is fbo
+PASS gl.deleteFramebuffer(fbo) was expected value: NO_ERROR.
+PASS gl.isFramebuffer(fbo) is false
+PASS gl.getParameter(gl.FRAMEBUFFER_BINDING) is null
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.FRAMEBUFFER_BINDING) is null
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.FRAMEBUFFER_BINDING) is fbo2
+PASS gl.deleteFramebuffer(fbo3) was expected value: NO_ERROR.
+PASS gl.getParameter(gl.FRAMEBUFFER_BINDING) is fbo2
+PASS fbo is non-null.
+PASS rbo is non-null.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.bindRenderbuffer(gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16) was expected value: NO_ERROR.
+PASS gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS gl.clearColor(1,0,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, fbo) was expected value: NO_ERROR.
+PASS gl.clearColor(0,1,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS fbo should be green
+PASS wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,255,0,255], "fbo should be green") was expected value: NO_ERROR.
+PASS outside fbo should be black
+PASS wtu.checkCanvasRect(gl, 16, 16, 1, 1, [0,0,0,0], "outside fbo should be black") was expected value: NO_ERROR.
+PASS gl.deleteFramebuffer(fbo) was expected value: NO_ERROR.
+PASS backbuffer should be red
+PASS wtu.checkCanvasRect(gl, 0, 0, 300, 150, [255,0,0,255], "backbuffer should be red") was expected value: NO_ERROR.
+PASS outside backbuffer should be black
+PASS wtu.checkCanvasRect(gl, 300, 0, 300, 300, [0,0,0,0], "outside backbuffer should be black") was expected value: NO_ERROR.
+PASS outside backbuffer should be black
+PASS wtu.checkCanvasRect(gl, 0, 150, 300, 300, [0,0,0,0], "outside backbuffer should be black") was expected value: NO_ERROR.
+PASS gl.clearColor(0,1,0,1) was expected value: NO_ERROR.
+PASS gl.clear(gl.COLOR_BUFFER_BIT) was expected value: NO_ERROR.
+PASS fbo should be green
+PASS wtu.checkCanvasRect(gl, 0, 0, 300, 150, [0,255,0,255], "fbo should be green") was expected value: NO_ERROR.
+PASS gl.bindFramebuffer(gl.FRAMEBUFFER, null) was expected value: NO_ERROR.
+PASS fbo should be green
+PASS wtu.checkCanvasRect(gl, 0, 0, 300, 150, [0,255,0,255], "fbo should be green") was expected value: NO_ERROR.
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
diff --git a/LayoutTests/fast/canvas/webgl/object-deletion-behaviour.html b/LayoutTests/fast/canvas/webgl/object-deletion-behaviour.html
new file mode 100644
index 0000000..0c6b115
--- /dev/null
+++ b/LayoutTests/fast/canvas/webgl/object-deletion-behaviour.html
@@ -0,0 +1,419 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<script src="../../js/resources/js-test-pre.js"></script>
+<script src="resources/webgl-test.js"></script>
+<script src="resources/webgl-test-utils.js"></script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+
+<script>
+description("Tests deletion behavior for texture, renderbuffer, shader, and program");
+
+var wtu = WebGLTestUtils;
+var gl = wtu.create3DContext();
+var shouldGenerateGLError = wtu.shouldGenerateGLError;
+
+debug("");
+debug("shader and program deletion");
+
+var vertexShader = wtu.loadStandardVertexShader(gl);
+assertMsg(vertexShader, "vertex shader loaded");
+var fragmentShader = wtu.loadStandardFragmentShader(gl);
+assertMsg(fragmentShader, "fragment shader loaded");
+
+var program = gl.createProgram();
+shouldBeNonNull("program");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.attachShader(program, vertexShader)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.attachShader(program, fragmentShader)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.linkProgram(program)");
+shouldBeTrue("gl.getProgramParameter(program, gl.LINK_STATUS)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.useProgram(program)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteShader(vertexShader)");
+shouldBeTrue("gl.isShader(vertexShader)");
+shouldBeTrue("gl.getShaderParameter(vertexShader, gl.DELETE_STATUS)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.detachShader(program, vertexShader)");
+shouldBeFalse("gl.isShader(vertexShader)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteShader(fragmentShader)");
+shouldBeTrue("gl.isShader(fragmentShader)");
+shouldBeTrue("gl.getShaderParameter(fragmentShader, gl.DELETE_STATUS)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteProgram(program)");
+shouldBeTrue("gl.isProgram(program)");
+shouldBeTrue("gl.getProgramParameter(program, gl.DELETE_STATUS)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.useProgram(null)");
+shouldBeFalse("gl.isProgram(program)");
+shouldBeFalse("gl.isShader(fragmentShader)");
+
+debug("");
+debug("texture deletion");
+
+var fbo = gl.createFramebuffer(), fbo2 = gl.createFramebuffer(), fbo3 = gl.createFramebuffer();
+shouldBeNonNull("fbo");
+shouldBeNonNull("fbo2");
+shouldBeNonNull("fbo3");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+
+var tex = gl.createTexture();
+shouldBeNonNull("tex");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_2D, tex)");
+shouldBe("gl.getParameter(gl.TEXTURE_BINDING_2D)", "tex");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0)");
+shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)", "tex");
+shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE)", "gl.TEXTURE");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteTexture(tex)");
+// Deleting a texture bound to the currently-bound fbo is the same as
+// detaching the textue from fbo first, then delete the texture.
+shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE)", "gl.NONE");
+shouldGenerateGLError(gl, gl.INVALID_ENUM, "gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)");
+shouldBeFalse("gl.isTexture(tex)");
+shouldBeNull("gl.getParameter(gl.TEXTURE_BINDING_2D)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_2D, tex)");
+shouldBeNull("gl.getParameter(gl.TEXTURE_BINDING_2D)");
+
+var texCubeMap = gl.createTexture();
+shouldBeNonNull("texCubeMap");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_CUBE_MAP, texCubeMap)");
+shouldBe("gl.getParameter(gl.TEXTURE_BINDING_CUBE_MAP)", "texCubeMap");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteTexture(texCubeMap)");
+shouldBeFalse("gl.isTexture(texCubeMap)");
+shouldBeNull("gl.getParameter(gl.TEXTURE_BINDING_CUBE_MAP)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_CUBE_MAP, texCubeMap)");
+shouldBeNull("gl.getParameter(gl.TEXTURE_BINDING_CUBE_MAP)");
+
+var t = gl.createTexture();
+shouldBeNonNull("t");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_2D, t)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteTexture(t)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_2D, t)");
+shouldGenerateGLError(gl, gl.INVALID_OPERATION, "gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)");
+
+var t2 = gl.createTexture();
+shouldBeNonNull("t2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.activeTexture(gl.TEXTURE0)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_2D, t2)");
+shouldBe("gl.getParameter(gl.TEXTURE_BINDING_2D)", "t2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.activeTexture(gl.TEXTURE1)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_2D, t2)");
+shouldBe("gl.getParameter(gl.TEXTURE_BINDING_2D)", "t2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteTexture(t2)");
+shouldBeNull("gl.getParameter(gl.TEXTURE_BINDING_2D)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.activeTexture(gl.TEXTURE0)");
+shouldBeNull("gl.getParameter(gl.TEXTURE_BINDING_2D)");
+
+debug("");
+debug("renderbuffer deletion");
+
+var rbo = gl.createRenderbuffer(), rbo2 = gl.createRenderbuffer(), rbo3 = gl.createRenderbuffer();
+shouldBeNonNull("rbo");
+shouldBeNonNull("rbo2");
+shouldBeNonNull("rbo3");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindRenderbuffer(gl.RENDERBUFFER, rbo)");
+shouldBe("gl.getParameter(gl.RENDERBUFFER_BINDING)", "rbo");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo)");
+shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)", "rbo");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteRenderbuffer(rbo)");
+// Deleting a renderbuffer bound to the currently-bound fbo is the same as
+// detaching the renderbuffer from fbo first, then delete the renderbuffer.
+shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE)", "gl.NONE");
+shouldGenerateGLError(gl, gl.INVALID_ENUM, "gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)");
+shouldBeFalse("gl.isRenderbuffer(rbo)");
+shouldBeNull("gl.getParameter(gl.RENDERBUFFER_BINDING)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindRenderbuffer(gl.RENDERBUFFER, rbo)");
+shouldBeNull("gl.getParameter(gl.RENDERBUFFER_BINDING)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindRenderbuffer(gl.RENDERBUFFER, rbo2)");
+shouldBe("gl.getParameter(gl.RENDERBUFFER_BINDING)", "rbo2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteRenderbuffer(rbo3)");
+shouldBe("gl.getParameter(gl.RENDERBUFFER_BINDING)", "rbo2");
+
+debug("");
+debug("using deleted renderbuffer");
+rbo = gl.createRenderbuffer();
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindRenderbuffer(gl.RENDERBUFFER, rbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo)");
+if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+  // make backbuffer red
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(1,0,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  // make fbo green
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,1,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  // Bind backbuffer.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  // delete renderbuffer. It should still be attached to fbo though.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteRenderbuffer(rbo)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red")');
+  // Use fbo that has deleted rbo.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,255,0,255], "fbo should be green")');
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,0,1,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,0,255,255], "fbo should be blue")');
+  // Bind backbuffer.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red")');
+}
+
+debug("");
+debug("renderbuffer attached twice to same framebuffer");
+rbo = gl.createRenderbuffer();
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindRenderbuffer(gl.RENDERBUFFER, rbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo)");
+if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+  rbo2 = gl.createRenderbuffer();
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindRenderbuffer(gl.RENDERBUFFER, rbo2)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16)");
+  // attach rbo2 at two attachment points incompatible with it
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.RENDERBUFFER, rbo2)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.RENDERBUFFER, rbo2)");
+  shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)", "rbo2");
+  shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)", "rbo2");
+  // fbo can't be complete as rbo2 is attached at incompatible attachment points
+  shouldNotBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE");
+  // now we delete rbo2, which detaches it from the two attachment points where it currently is attached
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteRenderbuffer(rbo2)");
+  shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE)", "gl.NONE");
+  shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE)", "gl.NONE");
+  // we should now be in the same state as before with only rbo attached, so fbo should be complete again
+  shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE");
+  shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)", "rbo");
+}
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteRenderbuffer(rbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+
+
+
+debug("");
+debug("using deleted texture");
+tex = gl.createTexture();
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_2D, tex)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null)");
+if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+  // make fbo green
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,1,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  // Bind backbuffer.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  // delete texture. It should still be attached to fbo though.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteTexture(tex)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 1, 1, [255,0,0,255], "backbuffer should be red")');
+  // Use fbo that has deleted texture.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 1, 1, [0,255,0,255], "fbo should be green")');
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,0,1,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 1, 1, [0,0,255,255], "fbo should be blue")');
+  // Bind backbuffer.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red")');
+}
+
+debug("");
+debug("using deleted renderbuffer");
+rbo = gl.createRenderbuffer();
+shouldBeNonNull("rbo");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindRenderbuffer(gl.RENDERBUFFER, rbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo)");
+if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo)");
+  shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE");
+  // make backbuffer red
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(1,0,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  // make fbo green
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,1,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  // delete renderbuffer. It should still be attached to fbo2 though.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteRenderbuffer(rbo)");
+  // fbo has no attachments
+  shouldNotBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE");
+  // Use fbo2 that has deleted rbo.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,255,0,255], "fbo should be green")');
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,0,1,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,0,255,255], "fbo should be blue")');
+  shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)", "rbo");
+
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.INVALID_ENUM, "gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)");
+  shouldGenerateGLError(gl, gl.NONE, "gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE)");
+  shouldNotBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE");
+  // Bind backbuffer.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red")');
+}
+
+debug("");
+debug("using deleted texture");
+tex = gl.createTexture();
+shouldBeNonNull("tex");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindTexture(gl.TEXTURE_2D, tex)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null)");
+if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0)");
+  // make fbo green
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,1,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  // delete texture. It should still be attached to fbo2 though.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteTexture(tex)");
+  // fbo has no attachments
+  shouldNotBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE");
+  // Use fbo that has deleted texture.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2)");
+  shouldBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 1, 1, [0,255,0,255], "fbo should be green")');
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,0,1,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 1, 1, [0,0,255,255], "fbo should be blue")');
+  shouldBe("gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)", "tex");
+
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.INVALID_ENUM, "gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME)");
+  shouldNotBe("gl.checkFramebufferStatus(gl.FRAMEBUFFER)", "gl.FRAMEBUFFER_COMPLETE");
+  // Bind backbuffer.
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [255,0,0,255], "backbuffer should be red")');
+}
+
+debug("");
+debug("buffer deletion");
+
+var buffer = gl.createBuffer();
+shouldBeNonNull("buffer");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, buffer)");
+shouldBe("gl.getParameter(gl.ARRAY_BUFFER_BINDING)", "buffer");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteBuffer(buffer)");
+shouldBeFalse("gl.isBuffer(buffer)");
+shouldBeNull("gl.getParameter(gl.ARRAY_BUFFER_BINDING)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, buffer)");
+shouldBeNull("gl.getParameter(gl.ARRAY_BUFFER_BINDING)");
+
+var buffer2 = gl.createBuffer();
+shouldBeNonNull("buffer2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, buffer2)");
+shouldBe("gl.getParameter(gl.ARRAY_BUFFER_BINDING)", "buffer2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, null)");
+shouldBeNull("gl.getParameter(gl.ARRAY_BUFFER_BINDING)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteBuffer(buffer2)");
+shouldBeFalse("gl.isBuffer(buffer2)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, buffer2)");
+shouldBeNull("gl.getParameter(gl.ARRAY_BUFFER_BINDING)");
+
+var bufferElement = gl.createBuffer();
+shouldBeNonNull("bufferElement");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, bufferElement)");
+shouldBe("gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING)", "bufferElement");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteBuffer(bufferElement)");
+shouldBeFalse("gl.isBuffer(bufferElement)");
+shouldBeNull("gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, bufferElement)");
+shouldBeNull("gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING)");
+
+var b = gl.createBuffer();
+shouldBeNonNull("b");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, b)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bufferData(gl.ARRAY_BUFFER, 1, gl.STATIC_DRAW)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteBuffer(b)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, b)");
+shouldGenerateGLError(gl, gl.INVALID_OPERATION, "gl.bufferData(gl.ARRAY_BUFFER, 1, gl.STATIC_DRAW)");
+
+var b1 = gl.createBuffer();
+shouldBeNonNull("b1");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, b1);");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.enableVertexAttribArray(1);");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.vertexAttribPointer(1, 4, gl.FLOAT, false, 0, 0);");
+var b2 = gl.createBuffer();
+shouldBeNonNull("b2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindBuffer(gl.ARRAY_BUFFER, b2);");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.enableVertexAttribArray(2);");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.vertexAttribPointer(2, 4, gl.FLOAT, false, 0, 0);");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.enableVertexAttribArray(3);");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.vertexAttribPointer(3, 4, gl.FLOAT, false, 0, 0);");
+shouldBe("gl.getVertexAttrib(1, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING)", "b1");
+shouldBe("gl.getVertexAttrib(2, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING)", "b2");
+shouldBe("gl.getVertexAttrib(3, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING)", "b2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteBuffer(b2);");
+shouldBe("gl.getVertexAttrib(1, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING)", "b1");
+shouldBeNull("gl.getVertexAttrib(2, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING)");
+shouldBeNull("gl.getVertexAttrib(3, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteBuffer(b1);");
+shouldBeNull("gl.getVertexAttrib(1, gl.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING)");
+
+debug("");
+debug("framebuffer deletion");
+
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+shouldBe("gl.getParameter(gl.FRAMEBUFFER_BINDING)", "fbo");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteFramebuffer(fbo)");
+shouldBeFalse("gl.isFramebuffer(fbo)");
+shouldBeNull("gl.getParameter(gl.FRAMEBUFFER_BINDING)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+shouldBeNull("gl.getParameter(gl.FRAMEBUFFER_BINDING)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo2)");
+shouldBe("gl.getParameter(gl.FRAMEBUFFER_BINDING)", "fbo2");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteFramebuffer(fbo3)");
+shouldBe("gl.getParameter(gl.FRAMEBUFFER_BINDING)", "fbo2");
+
+fbo = gl.createFramebuffer();
+rbo = gl.createRenderbuffer();
+shouldBeNonNull("fbo");
+shouldBeNonNull("rbo");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindRenderbuffer(gl.RENDERBUFFER, rbo)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, 16, 16)");
+shouldGenerateGLError(gl, gl.NO_ERROR, "gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rbo)");
+if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE) {
+  // set backbuffer to red
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(1,0,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  // set framebuffer to green
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, fbo)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,1,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  // check framebuffer
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 16, 16, [0,255,0,255], "fbo should be green")');
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 16, 16, 1, 1, [0,0,0,0], "outside fbo should be black")');
+  // delete framebuffer. because this was the bound fbo the backbuffer should be active now
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.deleteFramebuffer(fbo)");
+  // check backbuffer
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 300, 150, [255,0,0,255], "backbuffer should be red")');
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 300, 0, 300, 300, [0,0,0,0], "outside backbuffer should be black")');
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 150, 300, 300, [0,0,0,0], "outside backbuffer should be black")');
+  // check drawing to backbuffer
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clearColor(0,1,0,1)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.clear(gl.COLOR_BUFFER_BIT)");
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 300, 150, [0,255,0,255], "fbo should be green")');
+  shouldGenerateGLError(gl, gl.NO_ERROR, "gl.bindFramebuffer(gl.FRAMEBUFFER, null)");
+  // check again because many buggy implementations will have bound to the true backbuffer on deleteFramebuffer.
+  shouldGenerateGLError(gl, gl.NO_ERROR, 'wtu.checkCanvasRect(gl, 0, 0, 300, 150, [0,255,0,255], "fbo should be green")');
+}
+
+successfullyParsed = true;
+</script>
+
+<script src="../../js/resources/js-test-post.js"></script>
+</body>
+</html>
author	Pierre-Antoine LaFayette <plafayet@codeaurora.org>	2011-12-29 15:13:33 +0100
committer	Steve Kondik <shade@chemlab.org>	2013-01-20 18:38:26 -0800
commit	70f026a42cf1bee061389fa6ce790ea1186f0703 (patch)
tree	b0de5b5676433d2382e7cf1307b54edc19fc42a5 /LayoutTests/fast
parent	a815c626d7df7e24ba9e0df27c27735d4e069ffd (diff)
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