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

Branch : - branch - main - tag -

• Show log

  Commit

• Author : Jamie Madill
  Date : 2014-03-05 15:01:26
  Hash : 70656a64
  Message : Implement queries and enums for buffer mapping. GetBufferPointerv, GetBufferParameteri64v, and new values for GetBufferParameteriv. BUG=angle:565 Change-Id: I179a3193987b2bff1b0628e47f6a0d627541b0cf Reviewed-on: https://chromium-review.googlesource.com/188203 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>

• 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 "common/angleutils.h"
  #include "common/RefCountObject.h"
  #include "libGLESv2/renderer/IndexRangeCache.h"
  
  namespace rx
  {
  class Renderer;
  class BufferStorage;
  class StaticIndexBufferInterface;
  class StaticVertexBufferInterface;
  };
  
  namespace gl
  {
  
  class Buffer : public RefCountObject
  {
    public:
      Buffer(rx::Renderer *renderer, GLuint id);
  
      virtual ~Buffer();
  
      void bufferData(const void *data, GLsizeiptr size, GLenum usage);
      void bufferSubData(const void *data, GLsizeiptr size, GLintptr offset);
      void copyBufferSubData(Buffer* source, GLintptr sourceOffset, GLintptr destOffset, GLsizeiptr size);
      GLvoid *mapRange(GLintptr offset, GLsizeiptr length, GLbitfield access);
      void unmap();
  
      GLenum usage() const;
      GLint accessFlags() const;
      GLboolean mapped() const;
      GLvoid *mapPointer() const;
      GLint64 mapOffset() const;
      GLint64 mapLength() const;
  
      rx::BufferStorage *getStorage() const;
      GLint64 size() const;
  
      void markTransformFeedbackUsage();
  
      rx::StaticVertexBufferInterface *getStaticVertexBuffer();
      rx::StaticIndexBufferInterface *getStaticIndexBuffer();
      void invalidateStaticData();
      void promoteStaticUsage(int dataSize);
  
      rx::IndexRangeCache *getIndexRangeCache();
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Buffer);
  
      rx::Renderer *mRenderer;
      GLenum mUsage;
      GLint mAccessFlags;
      GLboolean mMapped;
      GLvoid *mMapPointer;
      GLint64 mMapOffset;
      GLint64 mMapLength;
  
      rx::BufferStorage *mBufferStorage;
  
      rx::IndexRangeCache mIndexRangeCache;
  
      rx::StaticVertexBufferInterface *mStaticVertexBuffer;
      rx::StaticIndexBufferInterface *mStaticIndexBuffer;
      unsigned int mUnmodifiedDataUse;
  };
  
  }
  
  #endif   // LIBGLESV2_BUFFER_H_