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/*
* Copyright (c) 2009 Openmoko Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GUILIB_H
#define GUILIB_H
/* to be provided by the hardware implementation */
extern unsigned char *framebuffer;
extern void fb_refresh();
unsigned int guilib_framebuffer_width(void);
unsigned int guilib_framebuffer_height(void);
unsigned int guilib_framebuffer_size(void);
/* implemented by guilib */
void guilib_init(void);
/* generic pixel value accessors
* the get method is only needed by the simulators */
void guilib_invert(int start, int lines);
void guilib_invert_area(int start_x, int start_y, int end_x, int end_y);
void guilib_clear(void);
void guilib_clear_area(int start_x, int start_y, int end_x, int end_y);
void guilib_buffer_invert_area(unsigned char *membuffer, int start_x, int start_y, int end_x, int end_y);
void guilib_buffer_set_pixel(unsigned char *membuffer, int x, int y);
void guilib_buffer_clear_pixel(unsigned char *membuffer, int x, int y);
void guilib_buffer_clear_area(unsigned char *membuffer,
int width, int height, int buf_width_bytes,
int start_x, int start_y, int end_x, int end_y);
/* functions for graphics context management */
void guilib_fb_lock(void);
void guilib_fb_unlock(void);
struct guilib_image {
unsigned int width;
unsigned int height;
char data[];
};
void guilib_blit_image(const struct guilib_image *img, int x, int y);
#endif /* GUILIB_H */
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