1 /* Copyright 2020 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_METAL_GPU_OBJECT_H_ 17 #define TENSORFLOW_LITE_DELEGATES_GPU_METAL_GPU_OBJECT_H_ 18 19 #import <Metal/Metal.h> 20 21 #include <map> 22 #include <memory> 23 #include <string> 24 #include <vector> 25 26 #include "tensorflow/lite/delegates/gpu/common/access_type.h" 27 #include "tensorflow/lite/delegates/gpu/common/data_type.h" 28 #include "tensorflow/lite/delegates/gpu/common/status.h" 29 #include "tensorflow/lite/delegates/gpu/common/task/gpu_object_desc.h" 30 31 namespace tflite { 32 namespace gpu { 33 namespace metal { 34 35 struct GPUResourcesWithValue { 36 GenericGPUResourcesWithValue generic; 37 38 struct BufferParameter { 39 id<MTLBuffer> handle; 40 uint64_t offset; 41 }; 42 std::vector<std::pair<std::string, BufferParameter>> buffers; 43 std::vector<std::pair<std::string, id<MTLTexture>>> images2d; 44 std::vector<std::pair<std::string, id<MTLTexture>>> image2d_arrays; 45 std::vector<std::pair<std::string, id<MTLTexture>>> images3d; 46 std::vector<std::pair<std::string, id<MTLTexture>>> image_buffers; 47 AddFloatGPUResourcesWithValue48 void AddFloat(const std::string& name, float value) { 49 generic.AddFloat(name, value); 50 } AddIntGPUResourcesWithValue51 void AddInt(const std::string& name, int value) { 52 generic.AddInt(name, value); 53 } 54 }; 55 56 class GPUObject { 57 public: 58 GPUObject() = default; 59 // Move only 60 GPUObject(GPUObject&& obj_desc) = default; 61 GPUObject& operator=(GPUObject&& obj_desc) = default; 62 GPUObject(const GPUObject&) = delete; 63 GPUObject& operator=(const GPUObject&) = delete; 64 virtual ~GPUObject() = default; 65 virtual absl::Status GetGPUResources( 66 const GPUObjectDescriptor* obj_ptr, 67 GPUResourcesWithValue* resources) const = 0; 68 }; 69 70 using GPUObjectPtr = std::unique_ptr<GPUObject>; 71 72 } // namespace metal 73 } // namespace gpu 74 } // namespace tflite 75 76 #endif // TENSORFLOW_LITE_DELEGATES_GPU_METAL_GPU_OBJECT_H_ 77