michael@0: //
michael@0: // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // VertexBuffer9.h: Defines the D3D9 VertexBuffer implementation.
michael@0: 
michael@0: #ifndef LIBGLESV2_RENDERER_VERTEXBUFFER9_H_
michael@0: #define LIBGLESV2_RENDERER_VERTEXBUFFER9_H_
michael@0: 
michael@0: #include "libGLESv2/renderer/VertexBuffer.h"
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: class Renderer9;
michael@0: 
michael@0: class VertexBuffer9 : public VertexBuffer
michael@0: {
michael@0:   public:
michael@0:     explicit VertexBuffer9(rx::Renderer9 *const renderer);
michael@0:     virtual ~VertexBuffer9();
michael@0: 
michael@0:     virtual bool initialize(unsigned int size, bool dynamicUsage);
michael@0: 
michael@0:     static VertexBuffer9 *makeVertexBuffer9(VertexBuffer *vertexBuffer);
michael@0: 
michael@0:     virtual bool storeVertexAttributes(const gl::VertexAttribute &attrib, GLint start, GLsizei count, GLsizei instances,
michael@0:                                        unsigned int offset);
michael@0:     virtual bool storeRawData(const void* data, unsigned int size, unsigned int offset);
michael@0: 
michael@0:     virtual bool getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, GLsizei instances, unsigned int *outSpaceRequired) const;
michael@0: 
michael@0:     virtual bool requiresConversion(const gl::VertexAttribute &attrib) const;
michael@0: 
michael@0:     unsigned int getVertexSize(const gl::VertexAttribute &attrib) const;
michael@0:     D3DDECLTYPE getDeclType(const gl::VertexAttribute &attrib) const;
michael@0: 
michael@0:     virtual unsigned int getBufferSize() const;
michael@0:     virtual bool setBufferSize(unsigned int size);
michael@0:     virtual bool discard();
michael@0: 
michael@0:     IDirect3DVertexBuffer9 *getBuffer() const;
michael@0: 
michael@0:   private:
michael@0:     DISALLOW_COPY_AND_ASSIGN(VertexBuffer9);
michael@0: 
michael@0:     rx::Renderer9 *const mRenderer;
michael@0: 
michael@0:     IDirect3DVertexBuffer9 *mVertexBuffer;
michael@0:     unsigned int mBufferSize;
michael@0:     bool mDynamicUsage;
michael@0: 
michael@0:     // Attribute format conversion
michael@0:     enum { NUM_GL_VERTEX_ATTRIB_TYPES = 6 };
michael@0: 
michael@0:     struct FormatConverter
michael@0:     {
michael@0:         bool identity;
michael@0:         std::size_t outputElementSize;
michael@0:         void (*convertArray)(const void *in, std::size_t stride, std::size_t n, void *out);
michael@0:         D3DDECLTYPE d3dDeclType;
michael@0:     };
michael@0: 
michael@0:     static bool mTranslationsInitialized;
michael@0:     static void initializeTranslations(DWORD declTypes);
michael@0: 
michael@0:     // [GL types as enumerated by typeIndex()][normalized][size - 1]
michael@0:     static FormatConverter mFormatConverters[NUM_GL_VERTEX_ATTRIB_TYPES][2][4];
michael@0: 
michael@0:     struct TranslationDescription
michael@0:     {
michael@0:         DWORD capsFlag;
michael@0:         FormatConverter preferredConversion;
michael@0:         FormatConverter fallbackConversion;
michael@0:     };
michael@0: 
michael@0:     // This table is used to generate mFormatConverters.
michael@0:     // [GL types as enumerated by typeIndex()][normalized][size - 1]
michael@0:     static const TranslationDescription mPossibleTranslations[NUM_GL_VERTEX_ATTRIB_TYPES][2][4];
michael@0: 
michael@0:     static unsigned int typeIndex(GLenum type);
michael@0:     static const FormatConverter &formatConverter(const gl::VertexAttribute &attribute);
michael@0: 
michael@0:     static bool spaceRequired(const gl::VertexAttribute &attrib, std::size_t count, GLsizei instances,
michael@0:                               unsigned int *outSpaceRequired);
michael@0: };
michael@0: 
michael@0: }
michael@0: 
michael@0: #endif // LIBGLESV2_RENDERER_VERTEXBUFFER9_H_