kc3-lang/angle/src/libANGLE/renderer/d3d/IndexBuffer.h

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• Hash : 9d737966
  Author :
  Date : 2019-08-14T12:25:12
  

  Standardize copyright notices to project style
  
  For all "ANGLE Project" copyrights, standardize to the format specified
  by the style guide. Changes:
  - "Copyright (c)" and "Copyright(c)" changed to just "Copyright".
  - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1").
  - Fixed a small number of files that had no copyright date using the
    initial commit year from the version control history.
  - Fixed one instance of copyright being "The ANGLE Project" rather than
    "The ANGLE Project Authors"
  
  These changes are applied both to the copyright of source file, and
  where applicable to copyright statements that are generated by
  templates.
  
  BUG=angleproject:3811
  
  Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/d3d/IndexBuffer.h

• //
  // Copyright 2002 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.
  //
  
  // IndexBuffer.h: Defines the abstract IndexBuffer class and IndexBufferInterface
  // class with derivations, classes that perform graphics API agnostic index buffer operations.
  
  #ifndef LIBANGLE_RENDERER_D3D_INDEXBUFFER_H_
  #define LIBANGLE_RENDERER_D3D_INDEXBUFFER_H_
  
  #include "common/PackedEnums.h"
  #include "common/angleutils.h"
  #include "libANGLE/Error.h"
  
  namespace gl
  {
  class Context;
  }  // namespace gl
  
  namespace rx
  {
  class BufferFactoryD3D;
  
  class IndexBuffer : angle::NonCopyable
  {
    public:
      IndexBuffer();
      virtual ~IndexBuffer();
  
      virtual angle::Result initialize(const gl::Context *context,
                                       unsigned int bufferSize,
                                       gl::DrawElementsType indexType,
                                       bool dynamic) = 0;
  
      virtual angle::Result mapBuffer(const gl::Context *context,
                                      unsigned int offset,
                                      unsigned int size,
                                      void **outMappedMemory)       = 0;
      virtual angle::Result unmapBuffer(const gl::Context *context) = 0;
  
      virtual angle::Result discard(const gl::Context *context) = 0;
  
      virtual gl::DrawElementsType getIndexType() const             = 0;
      virtual unsigned int getBufferSize() const                    = 0;
      virtual angle::Result setSize(const gl::Context *context,
                                    unsigned int bufferSize,
                                    gl::DrawElementsType indexType) = 0;
  
      unsigned int getSerial() const;
  
    protected:
      void updateSerial();
  
    private:
      unsigned int mSerial;
      static unsigned int mNextSerial;
  };
  
  class IndexBufferInterface : angle::NonCopyable
  {
    public:
      IndexBufferInterface(BufferFactoryD3D *factory, bool dynamic);
      virtual ~IndexBufferInterface();
  
      virtual angle::Result reserveBufferSpace(const gl::Context *context,
                                               unsigned int size,
                                               gl::DrawElementsType indexType) = 0;
  
      gl::DrawElementsType getIndexType() const;
      unsigned int getBufferSize() const;
  
      unsigned int getSerial() const;
  
      angle::Result mapBuffer(const gl::Context *context,
                              unsigned int size,
                              void **outMappedMemory,
                              unsigned int *streamOffset);
      angle::Result unmapBuffer(const gl::Context *context);
  
      IndexBuffer *getIndexBuffer() const;
  
    protected:
      unsigned int getWritePosition() const;
      void setWritePosition(unsigned int writePosition);
  
      angle::Result discard(const gl::Context *context);
  
      angle::Result setBufferSize(const gl::Context *context,
                                  unsigned int bufferSize,
                                  gl::DrawElementsType indexType);
  
    private:
      IndexBuffer *mIndexBuffer;
  
      unsigned int mWritePosition;
      bool mDynamic;
  };
  
  class StreamingIndexBufferInterface : public IndexBufferInterface
  {
    public:
      explicit StreamingIndexBufferInterface(BufferFactoryD3D *factory);
      ~StreamingIndexBufferInterface() override;
  
      angle::Result reserveBufferSpace(const gl::Context *context,
                                       unsigned int size,
                                       gl::DrawElementsType indexType) override;
  };
  
  class StaticIndexBufferInterface : public IndexBufferInterface
  {
    public:
      explicit StaticIndexBufferInterface(BufferFactoryD3D *factory);
      ~StaticIndexBufferInterface() override;
  
      angle::Result reserveBufferSpace(const gl::Context *context,
                                       unsigned int size,
                                       gl::DrawElementsType indexType) override;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_D3D_INDEXBUFFER_H_
  

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