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      1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved.
      2 //
      3 // Licensed under the Apache License, Version 2.0 (the "License");
      4 // you may not use this file except in compliance with the License.
      5 // You may obtain a copy of the License at
      6 //
      7 //    http://www.apache.org/licenses/LICENSE-2.0
      8 //
      9 // Unless required by applicable law or agreed to in writing, software
     10 // distributed under the License is distributed on an "AS IS" BASIS,
     11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 // See the License for the specific language governing permissions and
     13 // limitations under the License.
     14 
     15 // ResourceManager.h : Defines the ResourceManager class, which tracks objects
     16 // shared by multiple GL contexts.
     17 
     18 #ifndef LIBGLES_CM_RESOURCEMANAGER_H_
     19 #define LIBGLES_CM_RESOURCEMANAGER_H_
     20 
     21 #include "common/NameSpace.hpp"
     22 
     23 #include <GLES/gl.h>
     24 
     25 #include <map>
     26 
     27 namespace es1
     28 {
     29 class Buffer;
     30 class Texture;
     31 class Renderbuffer;
     32 
     33 enum TextureType
     34 {
     35 	TEXTURE_2D,
     36 	TEXTURE_EXTERNAL,
     37 
     38 	TEXTURE_TYPE_COUNT,
     39 	TEXTURE_UNKNOWN
     40 };
     41 
     42 class ResourceManager
     43 {
     44 public:
     45 	ResourceManager();
     46 	~ResourceManager();
     47 
     48 	void addRef();
     49 	void release();
     50 
     51 	GLuint createBuffer();
     52 	GLuint createTexture();
     53 	GLuint createRenderbuffer();
     54 
     55 	void deleteBuffer(GLuint buffer);
     56 	void deleteTexture(GLuint texture);
     57 	void deleteRenderbuffer(GLuint renderbuffer);
     58 
     59 	Buffer *getBuffer(GLuint handle);
     60 	Texture *getTexture(GLuint handle);
     61 	Renderbuffer *getRenderbuffer(GLuint handle);
     62 
     63 	void checkBufferAllocation(unsigned int buffer);
     64 	void checkTextureAllocation(GLuint texture, TextureType type);
     65 	void checkRenderbufferAllocation(GLuint handle);
     66 
     67 private:
     68 	std::size_t mRefCount;
     69 
     70 	gl::NameSpace<Buffer> mBufferNameSpace;
     71 	gl::NameSpace<Texture> mTextureNameSpace;
     72 	gl::NameSpace<Renderbuffer> mRenderbufferNameSpace;
     73 };
     74 
     75 }
     76 
     77 #endif // LIBGLES_CM_RESOURCEMANAGER_H_
     78