1 // Copyright 2017 The Dawn Authors 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 #ifndef DAWNNATIVE_OPENGL_NATIVESWAPCHAINIMPLGL_H_ 16 #define DAWNNATIVE_OPENGL_NATIVESWAPCHAINIMPLGL_H_ 17 18 #include "dawn_native/OpenGLBackend.h" 19 20 #include "dawn_native/dawn_platform.h" 21 #include "dawn_native/opengl/opengl_platform.h" 22 23 namespace dawn_native { namespace opengl { 24 25 class Device; 26 27 class NativeSwapChainImpl { 28 public: 29 using WSIContext = DawnWSIContextGL; 30 31 NativeSwapChainImpl(Device* device, PresentCallback present, void* presentUserdata); 32 ~NativeSwapChainImpl(); 33 34 void Init(DawnWSIContextGL* context); 35 DawnSwapChainError Configure(WGPUTextureFormat format, 36 WGPUTextureUsage, 37 uint32_t width, 38 uint32_t height); 39 DawnSwapChainError GetNextTexture(DawnSwapChainNextTexture* nextTexture); 40 DawnSwapChainError Present(); 41 42 wgpu::TextureFormat GetPreferredFormat() const; 43 44 private: 45 PresentCallback mPresentCallback; 46 void* mPresentUserdata; 47 48 uint32_t mWidth = 0; 49 uint32_t mHeight = 0; 50 GLuint mBackFBO = 0; 51 GLuint mBackTexture = 0; 52 53 Device* mDevice = nullptr; 54 }; 55 56 }} // namespace dawn_native::opengl 57 58 #endif // DAWNNATIVE_OPENGL_NATIVESWAPCHAINIMPLGL_H_ 59