1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _GRAPHICS_FBDEV_H_ 18 #define _GRAPHICS_FBDEV_H_ 19 20 #include <linux/fb.h> 21 22 #include "graphics.h" 23 #include "minui/minui.h" 24 25 class MinuiBackendFbdev : public MinuiBackend { 26 public: 27 GRSurface* Init() override; 28 GRSurface* Flip() override; 29 void Blank(bool) override; 30 ~MinuiBackendFbdev() override; 31 MinuiBackendFbdev(); 32 33 private: 34 void SetDisplayedFramebuffer(unsigned n); 35 36 GRSurface gr_framebuffer[2]; 37 bool double_buffered; 38 GRSurface* gr_draw; 39 int displayed_buffer; 40 fb_var_screeninfo vi; 41 int fb_fd; 42 }; 43 44 #endif // _GRAPHICS_FBDEV_H_ 45