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

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• Hash : 8f775607
  Author :
  Date : 2016-11-03T16:45:34
  

  Introduce a gl::BufferState class.
  
  This state can share vital pieces of information with the impl.
  The most elementary state is the buffer size, which then the
  impl doesn't need to replicate.
  
  BUG=angleproject:1579
  
  Change-Id: I341393c64a6e49de65c1d53b1bad2fa143209862
  Reviewed-on: https://chromium-review.googlesource.com/406644
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/BufferImpl.h

• //
  // Copyright 2014 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.
  //
  
  // BufferImpl.h: Defines the abstract rx::BufferImpl class.
  
  #ifndef LIBANGLE_RENDERER_BUFFERIMPL_H_
  #define LIBANGLE_RENDERER_BUFFERIMPL_H_
  
  #include "common/angleutils.h"
  #include "common/mathutil.h"
  #include "libANGLE/Error.h"
  
  #include <stdint.h>
  
  namespace gl
  {
  class BufferState;
  }
  
  namespace rx
  {
  
  class BufferImpl : angle::NonCopyable
  {
    public:
      BufferImpl(const gl::BufferState &state) : mState(state) {}
      virtual ~BufferImpl() { }
  
      virtual gl::Error setData(GLenum target, const void *data, size_t size, GLenum usage)     = 0;
      virtual gl::Error setSubData(GLenum target, const void *data, size_t size, size_t offset) = 0;
      virtual gl::Error copySubData(BufferImpl *source,
                                    GLintptr sourceOffset,
                                    GLintptr destOffset,
                                    GLsizeiptr size) = 0;
      virtual gl::Error map(GLenum access, GLvoid **mapPtr) = 0;
      virtual gl::Error mapRange(size_t offset, size_t length, GLbitfield access, GLvoid **mapPtr) = 0;
      virtual gl::Error unmap(GLboolean *result) = 0;
  
      virtual gl::Error getIndexRange(GLenum type,
                                      size_t offset,
                                      size_t count,
                                      bool primitiveRestartEnabled,
                                      gl::IndexRange *outRange) = 0;
  
    protected:
      const gl::BufferState &mState;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_BUFFERIMPL_H_
  

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