kc3-lang/angle/src/libANGLE/renderer/GLImplFactory.h

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• Hash : b4d84458
  Author :
  Date : 2025-05-23T18:08:19
  

  Move Buffer from VertexBinding to VertexArray
  
  In later CL we will not taking shared context lock for certain
  VertexArray API calls. VertexArray itself is per context, so this sounds
  reasonable to do. The main challenge here is a lot of VertexArray
  function end up accessing gl::Buffer object, which could be modified by
  other shared contexts. In order to safely not taking the shared context
  lock, we need to separate out Buffer object out of VertexArray itself so
  that these lockless APIs will take VertexArray that does not have access
  to buffer.
  
  In this CL, VertexArray is split into two classes: VertexArrayPrivate is
  everything in VertexArray except buffers. VertexArray is a subclass of
  VertexArrayPrivate and owns all the buffers. Buffer is removed from
  gl::VertexBinding class. In order to let back end access to buffers,
  VertexArrayImpl holds a weak reference to
  VertexArray::mVertexArrayBuffers (which is a vector of buffers).
  Further, VertexArrayBufferBindingMask mBufferBindingMask is moved from
  VertexArrayState into VertexArray class well, since it tracks which
  index has a non-null buffer. The bulk of change are due to the
  VertexARrayImpl constructor change, since it now takes
  vertexArrayBuffers argument. Other bulk of changes are due to
  VertexBinding no long has the buffer, but you need to get it directly
  from VertexArray or VertexArrayImpl.
  
  This CL also reverts some of the change in crrev.com/c/6758215 that
  mVertexBindings no longer contains kElementArrayBufferIndex.
  
  BYPASS_LARGE_CHANGE_WARNING
  
  Bug: b/433331119
  Change-Id: I15f4576f7c5c8d8f4d9c9c07d38a60ce539bfeea
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6774702
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  Commit-Queue: Charlie Lao <cclao@google.com>
  

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• src/libANGLE/renderer/GLImplFactory.h

• //
  // Copyright 2015 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // GLImplFactory.h:
  //   Factory interface for OpenGL ES Impl objects.
  //
  
  #ifndef LIBANGLE_RENDERER_GLIMPLFACTORY_H_
  #define LIBANGLE_RENDERER_GLIMPLFACTORY_H_
  
  #include <vector>
  
  #include "angle_gl.h"
  #include "libANGLE/Framebuffer.h"
  #include "libANGLE/Overlay.h"
  #include "libANGLE/Program.h"
  #include "libANGLE/ProgramExecutable.h"
  #include "libANGLE/ProgramPipeline.h"
  #include "libANGLE/Renderbuffer.h"
  #include "libANGLE/Shader.h"
  #include "libANGLE/Texture.h"
  #include "libANGLE/TransformFeedback.h"
  #include "libANGLE/VertexArray.h"
  #include "libANGLE/renderer/serial_utils.h"
  
  namespace gl
  {
  class State;
  }  // namespace gl
  
  namespace rx
  {
  class BufferImpl;
  class CompilerImpl;
  class ContextImpl;
  class FenceNVImpl;
  class SyncImpl;
  class FramebufferImpl;
  class MemoryObjectImpl;
  class OverlayImpl;
  class PathImpl;
  class ProgramExecutableImpl;
  class ProgramImpl;
  class ProgramPipelineImpl;
  class QueryImpl;
  class RenderbufferImpl;
  class SamplerImpl;
  class SemaphoreImpl;
  class ShaderImpl;
  class TextureImpl;
  class TransformFeedbackImpl;
  class VertexArrayImpl;
  
  class GLImplFactory : angle::NonCopyable
  {
    public:
      GLImplFactory();
      virtual ~GLImplFactory();
  
      // Shader creation
      virtual CompilerImpl *createCompiler()                           = 0;
      virtual ShaderImpl *createShader(const gl::ShaderState &data)    = 0;
      virtual ProgramImpl *createProgram(const gl::ProgramState &data) = 0;
      virtual ProgramExecutableImpl *createProgramExecutable(
          const gl::ProgramExecutable *executable) = 0;
  
      // Framebuffer creation
      virtual FramebufferImpl *createFramebuffer(const gl::FramebufferState &data) = 0;
  
      // Texture creation
      virtual TextureImpl *createTexture(const gl::TextureState &state) = 0;
  
      // Renderbuffer creation
      virtual RenderbufferImpl *createRenderbuffer(const gl::RenderbufferState &state) = 0;
  
      // Buffer creation
      virtual BufferImpl *createBuffer(const gl::BufferState &state) = 0;
  
      // Vertex Array creation
      virtual VertexArrayImpl *createVertexArray(
          const gl::VertexArrayState &data,
          const gl::VertexArrayBuffers &vertexArrayBuffers) = 0;
  
      // Query and Fence creation
      virtual QueryImpl *createQuery(gl::QueryType type) = 0;
      virtual FenceNVImpl *createFenceNV()               = 0;
      virtual SyncImpl *createSync()                     = 0;
  
      // Transform Feedback creation
      virtual TransformFeedbackImpl *createTransformFeedback(
          const gl::TransformFeedbackState &state) = 0;
  
      // Sampler object creation
      virtual SamplerImpl *createSampler(const gl::SamplerState &state) = 0;
  
      // Program Pipeline object creation
      virtual ProgramPipelineImpl *createProgramPipeline(const gl::ProgramPipelineState &data) = 0;
  
      // Memory object creation
      virtual MemoryObjectImpl *createMemoryObject() = 0;
  
      // Semaphore creation
      virtual SemaphoreImpl *createSemaphore() = 0;
  
      // Overlay creation
      virtual OverlayImpl *createOverlay(const gl::OverlayState &state) = 0;
  
      rx::UniqueSerial generateSerial() { return mSerialFactory.generate(); }
  
    private:
      rx::UniqueSerialFactory mSerialFactory;
  };
  
  inline GLImplFactory::GLImplFactory() = default;
  
  inline GLImplFactory::~GLImplFactory() = default;
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_GLIMPLFACTORY_H_
  

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