NVIDIA Holoscan SDK v0.4.0
v0.4.0

Program Listing for File overlay_img_vis.hpp

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/* * SPDX-FileCopyrightText: Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved. * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef NVIDIA_CLARA_HOLOSCAN_GXF_OVERLAY_IMG_VIS_HPP_ #define NVIDIA_CLARA_HOLOSCAN_GXF_OVERLAY_IMG_VIS_HPP_ #include <glad/glad.h> #include <string> #include <vector> #include "gxf/std/codelet.hpp" #include "frame_data.hpp" namespace nvidia { namespace holoscan { namespace visualizer_tool_tracking { // Note: MAX_LAYERS should match the value used in the fragment shader. constexpr size_t MAX_LAYERS = 64; struct OverlayImageVis { // owned externally const FrameData& frame_data_; const GLuint& overlay_img_tex_; // owned internally GLuint vao_ = 0; GLuint sampler = 0; GLuint vertex_shader_ = 0, fragment_shader_ = 0, program_ = 0; std::string vertex_shader_file_path_; std::string fragment_shader_file_path_; size_t num_layers_ = 0; std::vector<std::vector<float>> layer_colors_; OverlayImageVis(const FrameData& frame_data, const GLuint& overlay_img_tex) : frame_data_(frame_data), overlay_img_tex_(overlay_img_tex) {} OverlayImageVis(const OverlayImageVis&) = delete; OverlayImageVis& operator=(const OverlayImageVis&) = delete; gxf_result_t start(); gxf_result_t tick(); gxf_result_t stop(); }; } // namespace visualizer_tool_tracking } // namespace holoscan } // namespace nvidia #endif// NVIDIA_CLARA_HOLOSCAN_GXF_OVERLAY_IMG_VIS_HPP_

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