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76 lines
1.9 KiB
76 lines
1.9 KiB
/* |
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* This file is free software: you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the |
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* Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This file is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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* See the GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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#pragma once |
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#ifdef WITH_SITL_OSD |
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#include <AP_OSD/AP_OSD_Backend.h> |
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#ifdef HAVE_SFML_GRAPHICS_H |
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#include <SFML/Graphics.h> |
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#else |
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#include <SFML/Graphics.hpp> |
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#endif |
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class AP_OSD_SITL : public AP_OSD_Backend { |
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public: |
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static AP_OSD_Backend *probe(AP_OSD &osd); |
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//draw given text to framebuffer |
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void write(uint8_t x, uint8_t y, const char* text) override; |
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//initilize display port and underlying hardware |
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bool init() override; |
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//flush framebuffer to screen |
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void flush() override; |
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//clear framebuffer |
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void clear() override; |
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private: |
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//constructor |
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AP_OSD_SITL(AP_OSD &osd); |
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sf::RenderWindow *w; |
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sf::Texture font[256]; |
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uint8_t last_font; |
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// setup to match MAX7456 layout |
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static const uint8_t char_width = 12; |
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static const uint8_t char_height = 18; |
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static const uint8_t video_lines = 16; // PAL |
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static const uint8_t video_cols = 30; |
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static const uint8_t char_spacing = 0; |
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// scaling factor to make it easier to read |
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static const uint8_t char_scale = 2; |
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uint8_t buffer[video_lines][video_cols]; |
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void update_thread(); |
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static void *update_thread_start(void *obj); |
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void load_font(); |
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pthread_t thread; |
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HAL_Semaphore mutex; |
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uint32_t counter; |
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uint32_t last_counter; |
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}; |
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#endif // WITH_SITL_OSD
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