diff options
Diffstat (limited to 'src/drivers/ao_vga.h')
| -rw-r--r-- | src/drivers/ao_vga.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/drivers/ao_vga.h b/src/drivers/ao_vga.h new file mode 100644 index 00000000..7d9d6b39 --- /dev/null +++ b/src/drivers/ao_vga.h @@ -0,0 +1,39 @@ +/* + * Copyright © 2016 Keith Packard <keithp@keithp.com> + * + * 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 2 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. + */ + +#ifndef _AO_VGA_H_ +#define _AO_VGA_H_ + +#include "ao_draw.h" + +void +ao_vga_init(void); + +void +ao_vga_enable(int active); + +/* Active frame buffer */ +#define AO_VGA_WIDTH 320 +#define AO_VGA_HEIGHT 240 + +/* Pad on the right so that there are zeros on the output after the line */ +#define AO_VGA_HPAD 32 + +#define AO_VGA_STRIDE ((AO_VGA_WIDTH + AO_VGA_HPAD) >> AO_SHIFT) + +extern uint32_t ao_vga_fb[AO_VGA_STRIDE * AO_VGA_HEIGHT]; + +extern const struct ao_bitmap ao_vga_bitmap; + +#endif /* _AO_VGA_H_ */ |