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      1 //
      2 // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
      3 // Use of this source code is governed by a BSD-style license that can be
      4 // found in the LICENSE file.
      5 //
      6 
      7 // ResourceManager.h : Defines the ResourceManager class, which tracks objects
      8 // shared by multiple GL contexts.
      9 
     10 #ifndef LIBGLESV2_RESOURCEMANAGER_H_
     11 #define LIBGLESV2_RESOURCEMANAGER_H_
     12 
     13 #define GL_APICALL
     14 #include <GLES2/gl2.h>
     15 
     16 #include <map>
     17 
     18 #include "common/angleutils.h"
     19 
     20 namespace gl
     21 {
     22 class Buffer;
     23 class Shader;
     24 class Program;
     25 class Texture;
     26 class Renderbuffer;
     27 
     28 enum SamplerType
     29 {
     30     SAMPLER_2D,
     31     SAMPLER_CUBE,
     32 
     33     SAMPLER_TYPE_COUNT
     34 };
     35 
     36 class ResourceManager
     37 {
     38   public:
     39     ResourceManager();
     40     ~ResourceManager();
     41 
     42     void addRef();
     43     void release();
     44 
     45     GLuint createBuffer();
     46     GLuint createShader(GLenum type);
     47     GLuint createProgram();
     48     GLuint createTexture();
     49     GLuint createRenderbuffer();
     50 
     51     void deleteBuffer(GLuint buffer);
     52     void deleteShader(GLuint shader);
     53     void deleteProgram(GLuint program);
     54     void deleteTexture(GLuint texture);
     55     void deleteRenderbuffer(GLuint renderbuffer);
     56 
     57     Buffer *getBuffer(GLuint handle);
     58     Shader *getShader(GLuint handle);
     59     Program *getProgram(GLuint handle);
     60     Texture *getTexture(GLuint handle);
     61     Renderbuffer *getRenderbuffer(GLuint handle);
     62 
     63     void setRenderbuffer(GLuint handle, Renderbuffer *renderbuffer);
     64 
     65     void checkBufferAllocation(unsigned int buffer);
     66     void checkTextureAllocation(GLuint texture, SamplerType type);
     67     void checkRenderbufferAllocation(GLuint renderbuffer);
     68 
     69   private:
     70     DISALLOW_COPY_AND_ASSIGN(ResourceManager);
     71 
     72     std::size_t mRefCount;
     73 
     74     typedef std::map<GLuint, Buffer*> BufferMap;
     75     BufferMap mBufferMap;
     76 
     77     typedef std::map<GLuint, Shader*> ShaderMap;
     78     ShaderMap mShaderMap;
     79 
     80     typedef std::map<GLuint, Program*> ProgramMap;
     81     ProgramMap mProgramMap;
     82 
     83     typedef std::map<GLuint, Texture*> TextureMap;
     84     TextureMap mTextureMap;
     85 
     86     typedef std::map<GLuint, Renderbuffer*> RenderbufferMap;
     87     RenderbufferMap mRenderbufferMap;
     88 };
     89 
     90 }
     91 
     92 #endif // LIBGLESV2_RESOURCEMANAGER_H_
     93