core/include/graphics.h

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2012 Paulo Alcantara <pcacjr@zytor.com>
   4  *
   5  *   Permission is hereby granted, free of charge, to any person
   6  *   obtaining a copy of this software and associated documentation
   7  *   files (the "Software"), to deal in the Software without
   8  *   restriction, including without limitation the rights to use,
   9  *   copy, modify, merge, publish, distribute, sublicense, and/or
  10  *   sell copies of the Software, and to permit persons to whom
  11  *   the Software is furnished to do so, subject to the following
  12  *   conditions:
  13  *
  14  *   The above copyright notice and this permission notice shall
  15  *   be included in all copies or substantial portions of the Software.
  16  *
  17  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  19  *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  21  *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  22  *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  *   OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * ----------------------------------------------------------------------- */
  27
  28 #ifndef GRAPHICS_H_
  29 #define GRAPHICS_H_
  30
  31 #include <stddef.h>
  32
  33 #include "core.h"
  34 #include "fs.h"
  35
  36 #ifdef IS_SYSLINUX
  37 #define VGA_FILE_BUF_SIZE       (FILENAME_MAX + 2)
  38 #else
  39 #define VGA_FILE_BUF_SIZE       FILENAME_MAX
  40 #endif
  41
  42 extern uint8_t UsingVGA;
  43 extern uint16_t VGAPos;
  44 extern uint16_t *VGAFilePtr;
  45 extern char VGAFileBuf[VGA_FILE_BUF_SIZE];
  46 extern char VGAFileMBuf[];
  47 extern uint16_t VGAFontSize;
  48
  49 extern uint8_t UserFont;
  50
  51 extern char fontbuf[8192];
  52
  53 extern void vgadisplayfile(FILE *_fd);
  54 extern void using_vga(uint8_t vga, uint16_t pix_cols, uint16_t pix_rows);
  55
  56 static inline void graphics_using_vga(uint8_t vga, uint16_t pix_cols,
  57                                       uint16_t pix_rows)
  58 {
  59     using_vga(vga, pix_cols, pix_rows);
  60 }
  61
  62 #endif /* GRAPHICS_H_ */