kc3-lang/angle/src/libANGLE/renderer/gl/TransformFeedbackGL.h

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• Hash : 73bd218e
  Author :
  Date : 2016-07-15T13:01:24
  

  Support virtualized contexts and transform feedback in Renderer11.
  
  Track buffer offets in the transform feedback object and dirty them when a
  buffer is bound.  This fixes problems when a buffer is rebound at the same
  offset and maintains tracking between context switches.
  
  BUG=angleproject:1447
  BUG=angleproject:1298
  
  Change-Id: I2f890e3ad5edacab47f624a95a502615c86cc0c8
  Reviewed-on: https://chromium-review.googlesource.com/360910
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/gl/TransformFeedbackGL.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.
  //
  
  // TransformFeedbackGL.h: Defines the class interface for TransformFeedbackGL.
  
  #ifndef LIBANGLE_RENDERER_GL_TRANSFORMFEEDBACKGL_H_
  #define LIBANGLE_RENDERER_GL_TRANSFORMFEEDBACKGL_H_
  
  #include "libANGLE/renderer/TransformFeedbackImpl.h"
  
  namespace rx
  {
  
  class FunctionsGL;
  class StateManagerGL;
  
  class TransformFeedbackGL : public TransformFeedbackImpl
  {
    public:
      TransformFeedbackGL(const gl::TransformFeedbackState &state,
                          const FunctionsGL *functions,
                          StateManagerGL *stateManager);
      ~TransformFeedbackGL() override;
  
      void begin(GLenum primitiveMode) override;
      void end() override;
      void pause() override;
      void resume() override;
  
      void bindGenericBuffer(const BindingPointer<gl::Buffer> &binding) override;
      void bindIndexedBuffer(size_t index, const OffsetBindingPointer<gl::Buffer> &binding) override;
  
      GLuint getTransformFeedbackID() const;
  
      void syncActiveState(bool active, GLenum primitiveMode) const;
      void syncPausedState(bool paused) const;
  
    private:
      const FunctionsGL *mFunctions;
      StateManagerGL *mStateManager;
  
      GLuint mTransformFeedbackID;
  
      mutable bool mIsActive;
      mutable bool mIsPaused;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_GL_TRANSFORMFEEDBACKGL_H_
  

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