1 // 2 // Copyright 2020 Pixar 3 // 4 // Licensed under the Apache License, Version 2.0 (the "Apache License") 5 // with the following modification; you may not use this file except in 6 // compliance with the Apache License and the following modification to it: 7 // Section 6. Trademarks. is deleted and replaced with: 8 // 9 // 6. Trademarks. This License does not grant permission to use the trade 10 // names, trademarks, service marks, or product names of the Licensor 11 // and its affiliates, except as required to comply with Section 4(c) of 12 // the License and to reproduce the content of the NOTICE file. 13 // 14 // You may obtain a copy of the Apache License at 15 // 16 // http://www.apache.org/licenses/LICENSE-2.0 17 // 18 // Unless required by applicable law or agreed to in writing, software 19 // distributed under the Apache License with the above modification is 20 // distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 21 // KIND, either express or implied. See the Apache License for the specific 22 // language governing permissions and limitations under the Apache License. 23 // 24 #ifndef PXR_IMAGING_HGI_GL_BUFFER_H 25 #define PXR_IMAGING_HGI_GL_BUFFER_H 26 27 #include "pxr/pxr.h" 28 #include "pxr/imaging/hgiGL/api.h" 29 #include "pxr/imaging/hgi/buffer.h" 30 31 32 PXR_NAMESPACE_OPEN_SCOPE 33 34 /// \class HgiGLBuffer 35 /// 36 /// Represents an OpenGL GPU buffer resource. 37 /// 38 class HgiGLBuffer final : public HgiBuffer 39 { 40 public: 41 HGIGL_API 42 ~HgiGLBuffer() override; 43 44 HGIGL_API 45 size_t GetByteSizeOfResource() const override; 46 47 HGIGL_API 48 uint64_t GetRawResource() const override; 49 50 HGIGL_API 51 void* GetCPUStagingAddress() override; 52 GetBufferId()53 uint32_t GetBufferId() const {return _bufferId;} 54 55 /// Returns the bindless gpu address (caller must verify extension support) 56 HGIGL_API 57 uint64_t GetBindlessGPUAddress(); 58 59 protected: 60 friend class HgiGL; 61 62 HGIGL_API 63 HgiGLBuffer(HgiBufferDesc const & desc); 64 65 private: 66 HgiGLBuffer() = delete; 67 HgiGLBuffer & operator=(const HgiGLBuffer&) = delete; 68 HgiGLBuffer(const HgiGLBuffer&) = delete; 69 70 uint32_t _bufferId; 71 void* _mapped; 72 void* _cpuStaging; 73 uint64_t _bindlessGPUAddress; 74 }; 75 76 77 PXR_NAMESPACE_CLOSE_SCOPE 78 79 #endif 80