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Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/d3d/IndexBuffer.h')
-rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/d3d/IndexBuffer.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/d3d/IndexBuffer.h b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/IndexBuffer.h new file mode 100644 index 0000000000..6fb885a1cd --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/IndexBuffer.h @@ -0,0 +1,111 @@ +// +// Copyright (c) 2002-2012 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 LIBGLESV2_RENDERER_INDEXBUFFER_H_ +#define LIBGLESV2_RENDERER_INDEXBUFFER_H_ + +#include "common/angleutils.h" +#include "libGLESv2/renderer/IndexRangeCache.h" + +namespace rx +{ +class Renderer; + +class IndexBuffer +{ + public: + IndexBuffer(); + virtual ~IndexBuffer(); + + virtual bool initialize(unsigned int bufferSize, GLenum indexType, bool dynamic) = 0; + + virtual bool mapBuffer(unsigned int offset, unsigned int size, void** outMappedMemory) = 0; + virtual bool unmapBuffer() = 0; + + virtual bool discard() = 0; + + virtual GLenum getIndexType() const = 0; + virtual unsigned int getBufferSize() const = 0; + virtual bool setSize(unsigned int bufferSize, GLenum indexType) = 0; + + unsigned int getSerial() const; + + protected: + void updateSerial(); + + private: + DISALLOW_COPY_AND_ASSIGN(IndexBuffer); + + unsigned int mSerial; + static unsigned int mNextSerial; +}; + +class IndexBufferInterface +{ + public: + IndexBufferInterface(Renderer *renderer, bool dynamic); + virtual ~IndexBufferInterface(); + + virtual bool reserveBufferSpace(unsigned int size, GLenum indexType) = 0; + + GLenum getIndexType() const; + unsigned int getBufferSize() const; + + unsigned int getSerial() const; + + bool mapBuffer(unsigned int size, void** outMappedMemory, unsigned int *streamOffset); + bool unmapBuffer(); + + IndexBuffer *getIndexBuffer() const; + + protected: + unsigned int getWritePosition() const; + void setWritePosition(unsigned int writePosition); + + bool discard(); + + bool setBufferSize(unsigned int bufferSize, GLenum indexType); + + private: + DISALLOW_COPY_AND_ASSIGN(IndexBufferInterface); + + rx::Renderer *const mRenderer; + + IndexBuffer* mIndexBuffer; + + unsigned int mWritePosition; + bool mDynamic; +}; + +class StreamingIndexBufferInterface : public IndexBufferInterface +{ + public: + StreamingIndexBufferInterface(Renderer *renderer); + ~StreamingIndexBufferInterface(); + + virtual bool reserveBufferSpace(unsigned int size, GLenum indexType); +}; + +class StaticIndexBufferInterface : public IndexBufferInterface +{ + public: + explicit StaticIndexBufferInterface(Renderer *renderer); + ~StaticIndexBufferInterface(); + + virtual bool reserveBufferSpace(unsigned int size, GLenum indexType); + + IndexRangeCache *getIndexRangeCache(); + + private: + IndexRangeCache mIndexRangeCache; +}; + +} + +#endif // LIBGLESV2_RENDERER_INDEXBUFFER_H_
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