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