114639 2013-04-15 14:26:29 -0700 [CSS Shaders] Extract validation logic out of CustomFilterValidatedProgram into a CustomFilterValidator class 2014-03-02 08:52:29 -0800 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified RESOLVED INVALID P2 Normal --- 71392 1 mvujovic webkit-unassigned achicu commit-queue dino esprehn+autocc glenn krit michelangelo simon.fraser oldest_to_newest 876067 0 mvujovic 2013-04-15 14:26:29 -0700 Alex's comment: """ Let's extract the validation out of CustomFilterValidatedProgram into a separate class like CustomFilterValidator where we could store the mix/webgl shader validators and have all the blending code. CustomFilterValidatedProgram should only contain the "storing" logic, it is just the result of the CustomFilterValidator. I think we could consolidate that with CustomFilterProgram (which is the 'raw' program information). """ In addition, I don't think we need to keep around the validated shader strings after we have a compiled program. 886048 1 200998 mvujovic 2013-05-07 17:02:34 -0700 Created attachment 200998 Patch Some areas in the patch I'd like feedback on: (1) CustomFilterValidator is a class with only static methods, and it should never be initialized. I've made its constructor private. I'm thinking I should additionally disallow the copy constructor and assignment. I could only find the macro "DISALLOW_IMPLICIT_CONSTRUCTORS" defined in wtf/dtoa/utils.h. It doesn't seem correct to include that file here, since the file is all about double to string conversion. I'm wondering if we have some convention in WebKit for static classes. (2) I used only file static methods in CustomFilterValidator, since I try to keep things out of headers. Any thoughts on that? I could instead use class static methods or some mix between the two. (3) Does the static local initialization of ANGLEWebKitBridge in CustomFilterValidator.cpp look ok? I didn't want to use the DEFINE_STATIC_LOCAL macro because it only supports sending arguments to the ANGLEWebKitBridge constructor. I need to both send arguments to the constructor *and* perform some initialization after running the constructor (see the createShaderValidator function). 886050 2 commit-queue 2013-05-07 17:05:13 -0700 Attachment 200998 did not pass style-queue: Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCore/GNUmakefile.list.am', u'Source/WebCore/Target.pri', u'Source/WebCore/WebCore.xcodeproj/project.pbxproj', u'Source/WebCore/platform/graphics/filters/CustomFilterGlobalContext.cpp', u'Source/WebCore/platform/graphics/filters/CustomFilterGlobalContext.h', u'Source/WebCore/platform/graphics/filters/CustomFilterValidatedProgram.cpp', u'Source/WebCore/platform/graphics/filters/CustomFilterValidatedProgram.h', u'Source/WebCore/platform/graphics/filters/CustomFilterValidator.cpp', u'Source/WebCore/platform/graphics/filters/CustomFilterValidator.h', u'Source/WebCore/rendering/RenderLayer.cpp']" exit_code: 1 Source/WebCore/platform/graphics/filters/CustomFilterValidator.cpp:284: css_SetSatHelper is incorrectly named. Don't use underscores in your identifier names. [readability/naming/underscores] [4] Total errors found: 1 in 9 files If any of these errors are false positives, please file a bug against check-webkit-style. 887678 3 200998 achicu 2013-05-10 17:03:12 -0700 Comment on attachment 200998 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=200998&action=review Thanks Max! I think this is a step in the right direction. > Source/WebCore/platform/graphics/filters/CustomFilterValidatedProgram.cpp:45 > + : m_programInfo(program->programInfo()) Let's remove this programInfo and just store the validated program info. See below. > Source/WebCore/platform/graphics/filters/CustomFilterValidatedProgram.cpp:50 > + m_isInitialized = CustomFilterValidator::validateShaderStrings(program, m_validatedVertexShader, m_validatedFragmentShader); I think this might look better. This might also fix the questions about static methods & constructors. CustomFilterValidator customFilterValidator(); if (customFilterValidator.validate(program)) { m_programInfo = CustomFilterProgramInfo(customFilterValidator.vertexShader(), customFilterValidator.fragmentShader(), programInfo.programType(), programInfo.mixSettings(), programInfo.meshType()); m_initialized = true; } We would need a follow up patch to remove ProgramInfo and only store the required settings for the platform layer. > Source/WebCore/platform/graphics/filters/CustomFilterValidator.cpp:104 > +static String blendFunctionString(BlendMode blendMode) Let's add a bug to break this up in smaller functions. I would like to see these two functions (blendFunctionString and compositeFunctionString) extracted to a separate file. They seem independent from the validation part of the other class. The code might be useful in other parts in the future (ie. blending & compositing). > Source/WebCore/platform/graphics/filters/CustomFilterValidator.cpp:593 > + // FIXME: Report the validation errors. Having this as an object might help do this patch in the future. 200998 2013-05-07 17:02:34 -0700 2013-05-10 17:03:31 -0700 Patch 114639-1.patch text/plain 65287 mvujovic ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZyBiL1NvdXJjZS9XZWJDb3JlL0No YW5nZUxvZwppbmRleCA5NGEzMGMwLi5jYzYzMmNlIDEwMDY0NAotLS0gYS9Tb3VyY2UvV2ViQ29y ZS9DaGFuZ2VMb2cKKysrIGIvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCkBAIC0xLDMgKzEsNzkg QEAKKzIwMTMtMDUtMDcgIE1heCBWdWpvdmljICA8bXZ1am92aWNAYWRvYmUuY29tPgorCisgICAg ICAgIFtDU1MgU2hhZGVyc10gRXh0cmFjdCB2YWxpZGF0aW9uIGxvZ2ljIG91dCBvZiBDdXN0b21G aWx0ZXJWYWxpZGF0ZWRQcm9ncmFtIGludG8gYSBDdXN0b21GaWx0ZXJWYWxpZGF0b3IgY2xhc3MK KyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTExNDYzOQor CisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIFRoZSBDdXN0 b21GaWx0ZXJWYWxpZGF0ZWRQcm9ncmFtIGNvbnN0cnVjdG9yIG5vdyBjYWxscyBDdXN0b21GaWx0 ZXJWYWxpZGF0b3IgdG8gcGVyZm9ybQorICAgICAgICB2YWxpZGF0aW9uLiBJbiBhIGZ1dHVyZSBw 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