diff options
Diffstat (limited to 'contrib/syslinux-4.02/com32/lib/sys/vesa/video.h')
-rw-r--r-- | contrib/syslinux-4.02/com32/lib/sys/vesa/video.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/lib/sys/vesa/video.h b/contrib/syslinux-4.02/com32/lib/sys/vesa/video.h new file mode 100644 index 0000000..d14494b --- /dev/null +++ b/contrib/syslinux-4.02/com32/lib/sys/vesa/video.h @@ -0,0 +1,97 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 2006-2008 H. Peter Anvin - All Rights Reserved + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall + * be included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * ----------------------------------------------------------------------- */ + +#ifndef LIB_SYS_VESA_VIDEO_H +#define LIB_SYS_VESA_VIDEO_H + +#include <stdbool.h> +#include <colortbl.h> +#include "vesa.h" + +#define FONT_MAX_CHARS 256 +#define FONT_MAX_HEIGHT 32 +#define FONT_WIDTH 8 + +#define DEFAULT_VESA_X_SIZE 640 +#define DEFAULT_VESA_Y_SIZE 480 + +#define VIDEO_BORDER 8 +#define TEXT_PIXEL_ROWS (__vesa_info.mi.v_res - 2*VIDEO_BORDER) +#define TEXT_PIXEL_COLS (__vesa_info.mi.h_res - 2*VIDEO_BORDER) + +typedef uint16_t attr_t; + +struct vesa_char { + uint8_t ch; /* Character */ + uint8_t _filler; /* Currently unused */ + attr_t attr; /* Color table index */ +}; + +/* Pixel formats in order of decreasing preference; PXF_NONE should be last */ +/* BGR24 is preferred over BGRA32 since the I/O overhead is smaller. */ +enum vesa_pixel_format { + PXF_BGR24, /* 24-bit BGR */ + PXF_BGRA32, /* 32-bit BGRA */ + PXF_LE_RGB16_565, /* 16-bit littleendian 5:6:5 RGB */ + PXF_LE_RGB15_555, /* 15-bit littleendian 5:5:5 RGB */ + PXF_NONE +}; +extern enum vesa_pixel_format __vesacon_pixel_format; +extern unsigned int __vesacon_bytes_per_pixel; +typedef const void *(*__vesacon_format_pixels_t) + (void *, const uint32_t *, size_t); +extern __vesacon_format_pixels_t __vesacon_format_pixels; +extern const __vesacon_format_pixels_t __vesacon_format_pixels_list[PXF_NONE]; + +extern struct vesa_char *__vesacon_text_display; + +extern int __vesacon_font_height; +extern int __vesacon_text_rows; +extern int __vesacon_text_cols; +extern uint8_t __vesacon_graphics_font[FONT_MAX_CHARS][FONT_MAX_HEIGHT]; +extern uint32_t *__vesacon_background; +extern uint32_t *__vesacon_shadowfb; + +extern const uint16_t __vesacon_srgb_to_linear[256]; +extern const uint8_t __vesacon_linear_to_srgb[4080]; + +int __vesacon_init_background(void); +int vesacon_load_background(const char *); +int __vesacon_init(int, int); +void __vesacon_init_cursor(int); +void __vesacon_erase(int, int, int, int, attr_t); +void __vesacon_scroll_up(int, attr_t); +void __vesacon_write_char(int, int, uint8_t, attr_t); +void __vesacon_redraw_text(void); +void __vesacon_doit(void); +void __vesacon_set_cursor(int, int, bool); +void __vesacon_copy_to_screen(size_t, const uint32_t *, size_t); +void __vesacon_init_copy_to_screen(void); + +int __vesacon_i915resolution(int x, int y); + +#endif /* LIB_SYS_VESA_VIDEO_H */ |