acid-drop- Hacking the planet from a LilyGo T-Deck using custom firmware |
git clone git://git.acid.vegas/acid-drop.git |
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README.md (1164B)
1 # SDL_Renderer Based Drawing Functions 2 3 In LVGL, drawing was performed by CPU. To improve drawing performance on platforms with GPU, 4 we should perform drawing operations on GPU if possible. 5 6 This implementation has moved most bitmap blending and drawing procedures to utilize SDL_Renderer, 7 which takes advantages of hardware acceleration APIs like DirectX or OpenGL. 8 9 This implementation can be also considered as a reference implementation, for contributors wants to 10 develop accelerated drawing functions with other APIs such as OpenGL/OpenGL ES. 11 12 ## Caveats 13 `lv_draw_arc`, `lv_draw_line` is not enabled, due to incomplete implementation. So lines and arcs will 14 have significant impact to drawing performances. 15 16 Performance of this implementation still has room to improve. Or we should use more powerful APIs 17 such as OpenGL. 18 19 ## Notices for files 20 21 ### `lv_draw_sdl_stack_blur.c` 22 23 Contains modified code from [android-stackblur](https://github.com/kikoso/android-stackblur) project. 24 Apache License 2.0 25 26 ### `lv_draw_sdl_lru.c`/`lv_draw_sdl_lru.h` 27 28 Contains modified code from [C-LRU-Cache](https://github.com/willcannings/C-LRU-Cache) project. No license defined.