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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@devolution.com
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #ifndef _SDL_fbvideo_h
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29 #define _SDL_fbvideo_h
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30
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31 #include <sys/types.h>
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32 #include <termios.h>
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33 #include <linux/fb.h>
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34
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35 #include "SDL_mouse.h"
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36 #include "SDL_mutex.h"
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37 #include "SDL_sysvideo.h"
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38
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39 /* Hidden "this" pointer for the video functions */
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40 #define _THIS SDL_VideoDevice *this
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41
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42
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43 /* This is the structure we use to keep track of video memory */
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44 typedef struct vidmem_bucket {
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45 struct vidmem_bucket *prev;
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46 unsigned int used;
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47 char *base;
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48 unsigned int size;
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49 struct vidmem_bucket *next;
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50 } vidmem_bucket;
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51
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52 /* Information about the location of the surface in hardware memory */
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53 struct private_hwdata {
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54 int x;
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55 int y;
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56 };
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57
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58 /* Private display data */
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59 struct SDL_PrivateVideoData {
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60 int console_fd;
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61 struct fb_var_screeninfo cache_vinfo;
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62 struct fb_var_screeninfo saved_vinfo;
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63 int saved_cmaplen;
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64 __u16 *saved_cmap;
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65
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66 int current_vt;
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67 int saved_vt;
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68 int keyboard_fd;
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69 int saved_kbd_mode;
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70 struct termios saved_kbd_termios;
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71
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72 int mouse_fd;
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73
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74 char *mapped_mem;
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75 int mapped_memlen;
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76 int mapped_offset;
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77 char *mapped_io;
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78 long mapped_iolen;
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79 int flip_page;
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80 char *flip_address[2];
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81
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82 #define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */
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83 int SDL_nummodes[NUM_MODELISTS];
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84 SDL_Rect **SDL_modelist[NUM_MODELISTS];
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85
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86 vidmem_bucket surfaces;
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87 int surfaces_memtotal;
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88 int surfaces_memleft;
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89
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90 SDL_mutex *hw_lock;
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91
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92 void (*wait_vbl)(_THIS);
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93 };
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94 /* Old variable names */
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95 #define console_fd (this->hidden->console_fd)
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96 #define current_vt (this->hidden->current_vt)
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97 #define saved_vt (this->hidden->saved_vt)
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98 #define keyboard_fd (this->hidden->keyboard_fd)
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99 #define saved_kbd_mode (this->hidden->saved_kbd_mode)
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100 #define saved_kbd_termios (this->hidden->saved_kbd_termios)
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101 #define mouse_fd (this->hidden->mouse_fd)
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102 #define cache_vinfo (this->hidden->cache_vinfo)
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103 #define saved_vinfo (this->hidden->saved_vinfo)
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104 #define saved_cmaplen (this->hidden->saved_cmaplen)
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105 #define saved_cmap (this->hidden->saved_cmap)
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106 #define mapped_mem (this->hidden->mapped_mem)
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107 #define mapped_memlen (this->hidden->mapped_memlen)
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108 #define mapped_offset (this->hidden->mapped_offset)
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109 #define mapped_io (this->hidden->mapped_io)
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110 #define mapped_iolen (this->hidden->mapped_iolen)
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111 #define flip_page (this->hidden->flip_page)
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112 #define flip_address (this->hidden->flip_address)
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113 #define SDL_nummodes (this->hidden->SDL_nummodes)
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114 #define SDL_modelist (this->hidden->SDL_modelist)
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115 #define surfaces (this->hidden->surfaces)
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116 #define surfaces_memtotal (this->hidden->surfaces_memtotal)
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117 #define surfaces_memleft (this->hidden->surfaces_memleft)
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118 #define hw_lock (this->hidden->hw_lock)
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119 #define wait_vbl (this->hidden->wait_vbl)
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120
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121 /* Accelerator types that are supported by the driver, but are not
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122 necessarily in the kernel headers on the system we compile on.
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123 */
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124 #ifndef FB_ACCEL_MATROX_MGAG400
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125 #define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */
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126 #endif
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127 #ifndef FB_ACCEL_3DFX_BANSHEE
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128 #define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */
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129 #endif
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130
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131 /* These functions are defined in SDL_fbvideo.c */
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132 extern void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area);
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133 extern void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area);
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134
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135 #endif /* _SDL_fbvideo_h */
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