1 /* Copyright 2019 The TensorFlow 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 16 #ifndef TENSORFLOW_LITE_DELEGATES_GPU_CL_CL_CONTEXT_H_ 17 #define TENSORFLOW_LITE_DELEGATES_GPU_CL_CL_CONTEXT_H_ 18 19 #include "tensorflow/lite/delegates/gpu/cl/cl_device.h" 20 #include "tensorflow/lite/delegates/gpu/cl/opencl_wrapper.h" 21 #include "tensorflow/lite/delegates/gpu/common/data_type.h" 22 #include "tensorflow/lite/delegates/gpu/common/status.h" 23 24 namespace tflite { 25 namespace gpu { 26 namespace cl { 27 28 // A RAII wrapper around opencl context 29 class CLContext { 30 public: CLContext()31 CLContext() {} 32 CLContext(cl_context context, bool has_ownership); 33 34 // Move only 35 CLContext(CLContext&& context); 36 CLContext& operator=(CLContext&& context); 37 CLContext(const CLContext&) = delete; 38 CLContext& operator=(const CLContext&) = delete; 39 40 ~CLContext(); 41 context()42 cl_context context() const { return context_; } 43 44 bool IsFloatTexture2DSupported(int num_channels, DataType data_type, 45 cl_mem_flags flags = CL_MEM_READ_WRITE) const; 46 47 private: 48 void Release(); 49 50 cl_context context_ = nullptr; 51 bool has_ownership_ = false; 52 }; 53 54 absl::Status CreateCLContext(const CLDevice& device, CLContext* result); 55 absl::Status CreateCLGLContext(const CLDevice& device, 56 cl_context_properties egl_context, 57 cl_context_properties egl_display, 58 CLContext* result); 59 60 } // namespace cl 61 } // namespace gpu 62 } // namespace tflite 63 64 #endif // TENSORFLOW_LITE_DELEGATES_GPU_CL_CL_CONTEXT_H_ 65