1 /* Copyright 2021 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_GL_GL_TEXTURE_HELPER_H_ 17 #define TENSORFLOW_LITE_DELEGATES_GPU_GL_GL_TEXTURE_HELPER_H_ 18 19 #include "tensorflow/lite/delegates/gpu/common/data_type.h" 20 #include "tensorflow/lite/delegates/gpu/gl/portable_gl31.h" 21 22 namespace tflite { 23 namespace gpu { 24 namespace gl { 25 26 // From https://www.khronos.org/opengl/wiki/Normalized_Integer 27 // A Normalized Integer is an integer which is used to store a decimal floating 28 // point number. When formats use such an integer, OpenGL will automatically 29 // convert them to/from floating point values as needed. This allows normalized 30 // integers to be treated equivalently with floating-point values, acting as a 31 // form of compression. 32 GLenum ToTextureFormat(DataType type, bool normalized = false); 33 34 GLenum ToTextureInternalFormat(DataType type, bool normalized = false); 35 36 GLenum ToTextureDataType(DataType type); 37 38 } // namespace gl 39 } // namespace gpu 40 } // namespace tflite 41 42 #endif // TENSORFLOW_LITE_DELEGATES_GPU_GL_GL_TEXTURE_HELPER_H_ 43