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

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• Hash : 3edfe034
  Author :
  Date : 2015-09-04T16:38:24
  

  Support primitive restart in RendererGL.
  
  Store index ranges in a new struct that tracks how many real indices were
  seen.  Update index caching to key on primitive restart being enabled and
  update index counting functions to skip primitive restart indicies when
  needed.
  
  Passes dEQP-GLES3.functional.primitive_restart.*
  
  Change-Id: Id1e25a5adcdcd4e998836e8ff6679c64be4c3066
  Reviewed-on: https://chromium-review.googlesource.com/297770
  Tryjob-Request: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/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 LIBANGLE_BUFFER_H_
  #define LIBANGLE_BUFFER_H_
  
  #include "common/angleutils.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/IndexRangeCache.h"
  #include "libANGLE/RefCountObject.h"
  
  namespace rx
  {
  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 map(GLenum access);
      Error mapRange(GLintptr offset, GLsizeiptr length, GLbitfield access);
      Error unmap(GLboolean *result);
  
      void onTransformFeedback();
      void onPixelUnpack();
  
      Error getIndexRange(GLenum type,
                          size_t offset,
                          size_t count,
                          bool primitiveRestartEnabled,
                          IndexRange *outRange) const;
  
      GLenum getUsage() const { return mUsage; }
      GLbitfield getAccessFlags() const { return mAccessFlags; }
      GLenum getAccess() const { return mAccess; }
      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; }
  
    private:
      rx::BufferImpl *mBuffer;
  
      GLenum mUsage;
      GLint64 mSize;
      GLbitfield mAccessFlags;
      GLenum mAccess;
      GLboolean mMapped;
      GLvoid *mMapPointer;
      GLint64 mMapOffset;
      GLint64 mMapLength;
  
      mutable IndexRangeCache mIndexRangeCache;
  };
  
  }
  
  #endif   // LIBANGLE_BUFFER_H_
  

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