1 /* 2 * Copyright (C) 2014 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_H_ 18 #define _GRAPHICS_H_ 19 20 #include "minui.h" 21 22 // TODO: lose the function pointers. 23 struct minui_backend { 24 // Initializes the backend and returns a GRSurface* to draw into. 25 GRSurface* (*init)(minui_backend*); 26 27 // Causes the current drawing surface (returned by the most recent 28 // call to flip() or init()) to be displayed, and returns a new 29 // drawing surface. 30 GRSurface* (*flip)(minui_backend*); 31 32 // Blank (or unblank) the screen. 33 void (*blank)(minui_backend*, bool); 34 35 // Device cleanup when drawing is done. 36 void (*exit)(minui_backend*); 37 }; 38 39 minui_backend* open_fbdev(); 40 minui_backend* open_adf(); 41 minui_backend* open_drm(); 42 43 #endif 44
