1 /* 2 * Copyright (C) 2007 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 _MINUI_H_ 18 #define _MINUI_H_ 19 20 #include <stdbool.h> 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 typedef void* gr_surface; 27 typedef unsigned short gr_pixel; 28 29 int gr_init(void); 30 void gr_exit(void); 31 32 int gr_fb_width(void); 33 int gr_fb_height(void); 34 gr_pixel *gr_fb_data(void); 35 void gr_flip(void); 36 void gr_fb_blank(bool blank); 37 38 void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a); 39 void gr_fill(int x1, int y1, int x2, int y2); 40 int gr_text(int x, int y, const char *s, int bold); 41 void gr_texticon(int x, int y, gr_surface icon); 42 int gr_measure(const char *s); 43 void gr_font_size(int *x, int *y); 44 45 void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy); 46 unsigned int gr_get_width(gr_surface surface); 47 unsigned int gr_get_height(gr_surface surface); 48 49 // input event structure, include <linux/input.h> for the definition. 50 // see http://www.mjmwired.net/kernel/Documentation/input/ for info. 51 struct input_event; 52 53 typedef int (*ev_callback)(int fd, short revents, void *data); 54 typedef int (*ev_set_key_callback)(int code, int value, void *data); 55 56 int ev_init(ev_callback input_cb, void *data); 57 void ev_exit(void); 58 int ev_add_fd(int fd, ev_callback cb, void *data); 59 int ev_sync_key_state(ev_set_key_callback set_key_cb, void *data); 60 61 /* timeout has the same semantics as for poll 62 * 0 : don't block 63 * < 0 : block forever 64 * > 0 : block for 'timeout' milliseconds 65 */ 66 int ev_wait(int timeout); 67 68 int ev_get_input(int fd, short revents, struct input_event *ev); 69 void ev_dispatch(void); 70 71 // Resources 72 73 // Returns 0 if no error, else negative. 74 int res_create_surface(const char* name, gr_surface* pSurface); 75 int res_create_localized_surface(const char* name, gr_surface* pSurface); 76 void res_free_surface(gr_surface surface); 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif 83