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 // Fence.h: Defines the Fence class, which supports the GL_NV_fence extension. 16 17 #ifndef LIBGLESV2_FENCE_H_ 18 #define LIBGLESV2_FENCE_H_ 19 20 #include "common/Object.hpp" 21 #include <GLES2/gl2.h> 22 23 namespace es2 24 { 25 26 class Fence 27 { 28 public: 29 Fence(); 30 virtual ~Fence(); 31 32 GLboolean isFence(); 33 void setFence(GLenum condition); 34 GLboolean testFence(); 35 void finishFence(); 36 void getFenceiv(GLenum pname, GLint *params); 37 38 private: 39 bool mQuery; 40 GLenum mCondition; 41 GLboolean mStatus; 42 }; 43 44 class FenceSync : public gl::NamedObject 45 { 46 public: 47 FenceSync(GLuint name, GLenum condition, GLbitfield flags); 48 virtual ~FenceSync(); 49 50 GLenum clientWait(GLbitfield flags, GLuint64 timeout); 51 void serverWait(GLbitfield flags, GLuint64 timeout); 52 void getSynciv(GLenum pname, GLsizei *length, GLint *values); 53 getCondition()54 GLenum getCondition() const { return mCondition; } getFlags()55 GLbitfield getFlags() const { return mFlags; } 56 57 private: 58 GLenum mCondition; 59 GLbitfield mFlags; 60 }; 61 62 } 63 64 #endif // LIBGLESV2_FENCE_H_ 65