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//
// Copyright (c) 2002-2010 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.
//
// ResourceManager.h : Defines the ResourceManager class, which tracks objects
// shared by multiple GL contexts.
#ifndef LIBGLESV2_RESOURCEMANAGER_H_
#define LIBGLESV2_RESOURCEMANAGER_H_
#define GL_APICALL
#include <GLES2/gl2.h>
#ifdef _MSC_VER
#include <hash_map>
#else
#include <unordered_map>
#endif
#include "common/angleutils.h"
#include "libGLESv2/HandleAllocator.h"
namespace gl
{
class Buffer;
class Shader;
class Program;
class Texture;
class Renderbuffer;
enum TextureType
{
TEXTURE_2D,
TEXTURE_CUBE,
TEXTURE_TYPE_COUNT,
TEXTURE_UNKNOWN
};
enum SamplerType
{
SAMPLER_PIXEL,
SAMPLER_VERTEX
};
class ResourceManager
{
public:
ResourceManager();
~ResourceManager();
void addRef();
void release();
GLuint createBuffer();
GLuint createShader(GLenum type);
GLuint createProgram();
GLuint createTexture();
GLuint createRenderbuffer();
void deleteBuffer(GLuint buffer);
void deleteShader(GLuint shader);
void deleteProgram(GLuint program);
void deleteTexture(GLuint texture);
void deleteRenderbuffer(GLuint renderbuffer);
Buffer *getBuffer(GLuint handle);
Shader *getShader(GLuint handle);
Program *getProgram(GLuint handle);
Texture *getTexture(GLuint handle);
Renderbuffer *getRenderbuffer(GLuint handle);
void setRenderbuffer(GLuint handle, Renderbuffer *renderbuffer);
void checkBufferAllocation(unsigned int buffer);
void checkTextureAllocation(GLuint texture, TextureType type);
void checkRenderbufferAllocation(GLuint renderbuffer);
private:
DISALLOW_COPY_AND_ASSIGN(ResourceManager);
std::size_t mRefCount;
#ifndef HASH_MAP
# ifdef _MSC_VER
# define HASH_MAP stdext::hash_map
# else
# define HASH_MAP std::unordered_map
# endif
#endif
typedef HASH_MAP<GLuint, Buffer*> BufferMap;
BufferMap mBufferMap;
HandleAllocator mBufferHandleAllocator;
typedef HASH_MAP<GLuint, Shader*> ShaderMap;
ShaderMap mShaderMap;
typedef HASH_MAP<GLuint, Program*> ProgramMap;
ProgramMap mProgramMap;
HandleAllocator mProgramShaderHandleAllocator;
typedef HASH_MAP<GLuint, Texture*> TextureMap;
TextureMap mTextureMap;
HandleAllocator mTextureHandleAllocator;
typedef HASH_MAP<GLuint, Renderbuffer*> RenderbufferMap;
RenderbufferMap mRenderbufferMap;
HandleAllocator mRenderbufferHandleAllocator;
};
}
#endif // LIBGLESV2_RESOURCEMANAGER_H_
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