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#ifndef __ASURA_GPU_BUFFER_H__
#define __ASURA_GPU_BUFFER_H__
#include <asura-utils/scripting/portable.hpp>
#include <asura-utils/exceptions/exception.h>
#include <asura-utils/type.h>
#include "gl.h"
namespace AsuraEngine
{
namespace Graphics
{
enum BufferType
{
BUFFER_TYPE_VERTEX, ///< 㻺
BUFFER_TYPE_INDEX, ///<
};
enum BufferUsage
{
BUFFER_USAGE_STREAM, ///< һΣʹô
BUFFER_USAGE_DYNAMIC, ///< һΣʹ
BUFFER_USAGE_STATIC, ///< ĺʹ
};
///
/// GPU壬ֶ㻺֣ÿζڴԴϴݡ
///
class GPUBuffer
: AEScripting::Portable<GPUBuffer>
{
public:
GPUBuffer(BufferType type, BufferUsage usage, size_t size);
~GPUBuffer();
///
/// ʼ\»棬ûgpu bufferԴΪdzʼΪǸ¡
///
bool Fill(const void* data, size_t size, uint offset = 0) ASURA_THROW(Exception);
///
/// ӦĿϣͿʹˡ
///
void Bind();
void UnBind();
uint GetBufferSize();
private:
//----------------------------------------------------------------------------//
LUAX_DECL_FACTORY(GPUBuffer);
LUAX_DECL_ENUM(BufferType, 1);
LUAX_DECL_ENUM(BufferUsage, 1);
LUAX_DECL_METHOD(_New);
LUAX_DECL_METHOD(_Fill);
LUAX_DECL_METHOD(_GetSize);
//----------------------------------------------------------------------------//
GLenum mTarget;
GLuint mBuffer;
GLuint mUsage;
uint mSize;
#if ASURA_DEBUG
///
/// رbufferݣԴݱһ£ԺԴ档
///
byte* mData;
#endif
};
}
}
#endif
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