kc3-lang/angle/src/libGLESv2/Buffer.h

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• Hash : 2a1c15a1
  Author :
  Date : 2014-07-25T11:43:00
  

  Update Buffers to return Error objects instead of calling gl::error.
  
  BUG=angle:520
  
  Change-Id: I4b6af8e2d4fae97639518e2acd26e2d4be93c925
  Reviewed-on: https://chromium-review.googlesource.com/209881
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libGLESv2/Buffer.h

• //
  // Copyright (c) 2002-2014 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.
  //
  
  // Buffer.h: Defines the gl::Buffer class, representing storage of vertex and/or
  // index data. Implements GL buffer objects and related functionality.
  // [OpenGL ES 2.0.24] section 2.9 page 21.
  
  #ifndef LIBGLESV2_BUFFER_H_
  #define LIBGLESV2_BUFFER_H_
  
  #include "libGLESv2/Error.h"
  
  #include "common/angleutils.h"
  #include "common/RefCountObject.h"
  #include "libGLESv2/renderer/IndexRangeCache.h"
  
  namespace rx
  {
  class Renderer;
  class BufferImpl;
  };
  
  namespace gl
  {
  
  class Buffer : public RefCountObject
  {
    public:
      Buffer(rx::BufferImpl *impl, GLuint id);
  
      virtual ~Buffer();
  
      Error bufferData(const void *data, GLsizeiptr size, GLenum usage);
      Error bufferSubData(const void *data, GLsizeiptr size, GLintptr offset);
      Error copyBufferSubData(Buffer* source, GLintptr sourceOffset, GLintptr destOffset, GLsizeiptr size);
      Error mapRange(GLintptr offset, GLsizeiptr length, GLbitfield access);
      Error unmap();
  
      GLenum getUsage() const { return mUsage; }
      GLint getAccessFlags() const {  return mAccessFlags; }
      GLboolean isMapped() const { return mMapped; }
      GLvoid *getMapPointer() const { return mMapPointer; }
      GLint64 getMapOffset() const { return mMapOffset; }
      GLint64 getMapLength() const { return mMapLength; }
      GLint64 getSize() const { return mSize; }
  
      rx::BufferImpl *getImplementation() const { return mBuffer; }
  
      void markTransformFeedbackUsage();
  
      rx::IndexRangeCache *getIndexRangeCache() { return &mIndexRangeCache; }
      const rx::IndexRangeCache *getIndexRangeCache() const { return &mIndexRangeCache; }
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Buffer);
  
      rx::BufferImpl *mBuffer;
  
      GLenum mUsage;
      GLint64 mSize;
      GLint mAccessFlags;
      GLboolean mMapped;
      GLvoid *mMapPointer;
      GLint64 mMapOffset;
      GLint64 mMapLength;
  
      rx::IndexRangeCache mIndexRangeCache;
  };
  
  }
  
  #endif   // LIBGLESV2_BUFFER_H_
  

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