Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.h @ 889:eac8c69b5706
ate: Fri, 09 Apr 2004 20:07:10 +0200
From: Hibernatus
Subject: [SDL] BUG: changing video mode in opengl + windows
In WIN_GL_SetupWindow (SDL12/src/video/wincommon/SDL_wingl.c) you call
WIN_GL_ResetWindow when SetPixelFormat fails.
WIN_GL_ResetWindow cannot properly work in its current state, because there
are several things to update once you've created a new window. At least
DirectInput doesn't work anymore here (which is somewhat annoying for the
player :).
I think you can simply remove that function. Many games don't try to
recover from that exception, that's why the newest ATI drivers emulate 16
bpp display in 32 bpp mode so the error never occurs (but the games may run
much slower).
Having SDL_SetVideoMode return NULL would be better than actually setting
the video mode and losing focus, directinput and maybe directsound too. It
also made my previous drivers crash (when switching from 32 bpp windowed to
16 bpp fullscreen).
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 16 May 2004 18:02:48 +0000 |
| parents | b8d311d90021 |
| children | 718d00094f82 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #ifndef _SDL_fbvideo_h | |
| 29 #define _SDL_fbvideo_h | |
| 30 | |
| 31 #include <sys/types.h> | |
| 32 #include <termios.h> | |
| 33 #include <linux/fb.h> | |
| 34 | |
| 35 #include "SDL_mouse.h" | |
| 36 #include "SDL_mutex.h" | |
| 37 #include "SDL_sysvideo.h" | |
| 38 | |
| 39 /* Hidden "this" pointer for the video functions */ | |
| 40 #define _THIS SDL_VideoDevice *this | |
| 41 | |
| 42 | |
| 43 /* This is the structure we use to keep track of video memory */ | |
| 44 typedef struct vidmem_bucket { | |
| 45 struct vidmem_bucket *prev; | |
|
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46 int used; |
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47 int dirty; |
| 0 | 48 char *base; |
| 49 unsigned int size; | |
| 50 struct vidmem_bucket *next; | |
| 51 } vidmem_bucket; | |
| 52 | |
| 53 /* Private display data */ | |
| 54 struct SDL_PrivateVideoData { | |
| 55 int console_fd; | |
| 56 struct fb_var_screeninfo cache_vinfo; | |
| 57 struct fb_var_screeninfo saved_vinfo; | |
| 58 int saved_cmaplen; | |
| 59 __u16 *saved_cmap; | |
| 60 | |
| 61 int current_vt; | |
| 62 int saved_vt; | |
| 63 int keyboard_fd; | |
| 64 int saved_kbd_mode; | |
| 65 struct termios saved_kbd_termios; | |
| 66 | |
| 67 int mouse_fd; | |
| 68 | |
| 69 char *mapped_mem; | |
| 70 int mapped_memlen; | |
| 71 int mapped_offset; | |
| 72 char *mapped_io; | |
| 73 long mapped_iolen; | |
| 74 int flip_page; | |
| 75 char *flip_address[2]; | |
| 76 | |
| 77 #define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */ | |
| 78 int SDL_nummodes[NUM_MODELISTS]; | |
| 79 SDL_Rect **SDL_modelist[NUM_MODELISTS]; | |
| 80 | |
| 81 vidmem_bucket surfaces; | |
| 82 int surfaces_memtotal; | |
| 83 int surfaces_memleft; | |
| 84 | |
| 85 SDL_mutex *hw_lock; | |
| 86 | |
| 87 void (*wait_vbl)(_THIS); | |
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88 void (*wait_idle)(_THIS); |
| 0 | 89 }; |
| 90 /* Old variable names */ | |
| 91 #define console_fd (this->hidden->console_fd) | |
| 92 #define current_vt (this->hidden->current_vt) | |
| 93 #define saved_vt (this->hidden->saved_vt) | |
| 94 #define keyboard_fd (this->hidden->keyboard_fd) | |
| 95 #define saved_kbd_mode (this->hidden->saved_kbd_mode) | |
| 96 #define saved_kbd_termios (this->hidden->saved_kbd_termios) | |
| 97 #define mouse_fd (this->hidden->mouse_fd) | |
| 98 #define cache_vinfo (this->hidden->cache_vinfo) | |
| 99 #define saved_vinfo (this->hidden->saved_vinfo) | |
| 100 #define saved_cmaplen (this->hidden->saved_cmaplen) | |
| 101 #define saved_cmap (this->hidden->saved_cmap) | |
| 102 #define mapped_mem (this->hidden->mapped_mem) | |
| 103 #define mapped_memlen (this->hidden->mapped_memlen) | |
| 104 #define mapped_offset (this->hidden->mapped_offset) | |
| 105 #define mapped_io (this->hidden->mapped_io) | |
| 106 #define mapped_iolen (this->hidden->mapped_iolen) | |
| 107 #define flip_page (this->hidden->flip_page) | |
| 108 #define flip_address (this->hidden->flip_address) | |
| 109 #define SDL_nummodes (this->hidden->SDL_nummodes) | |
| 110 #define SDL_modelist (this->hidden->SDL_modelist) | |
| 111 #define surfaces (this->hidden->surfaces) | |
| 112 #define surfaces_memtotal (this->hidden->surfaces_memtotal) | |
| 113 #define surfaces_memleft (this->hidden->surfaces_memleft) | |
| 114 #define hw_lock (this->hidden->hw_lock) | |
| 115 #define wait_vbl (this->hidden->wait_vbl) | |
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116 #define wait_idle (this->hidden->wait_idle) |
| 0 | 117 |
| 118 /* Accelerator types that are supported by the driver, but are not | |
| 119 necessarily in the kernel headers on the system we compile on. | |
| 120 */ | |
| 121 #ifndef FB_ACCEL_MATROX_MGAG400 | |
| 122 #define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */ | |
| 123 #endif | |
| 124 #ifndef FB_ACCEL_3DFX_BANSHEE | |
| 125 #define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */ | |
| 126 #endif | |
| 127 | |
| 128 /* These functions are defined in SDL_fbvideo.c */ | |
| 129 extern void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area); | |
| 130 extern void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area); | |
| 131 | |
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132 /* These are utility functions for working with video surfaces */ |
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133 |
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134 static __inline__ void FB_AddBusySurface(SDL_Surface *surface) |
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135 { |
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136 ((vidmem_bucket *)surface->hwdata)->dirty = 1; |
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137 } |
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138 |
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139 static __inline__ int FB_IsSurfaceBusy(SDL_Surface *surface) |
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140 { |
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141 return ((vidmem_bucket *)surface->hwdata)->dirty; |
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142 } |
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143 |
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144 static __inline__ void FB_WaitBusySurfaces(_THIS) |
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145 { |
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146 vidmem_bucket *bucket; |
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147 |
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148 /* Wait for graphic operations to complete */ |
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149 wait_idle(this); |
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150 |
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151 /* Clear all surface dirty bits */ |
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152 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
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153 bucket->dirty = 0; |
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154 } |
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155 } |
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156 |
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157 static __inline__ void FB_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y) |
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158 { |
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159 *x = (long)((char *)dst->pixels - mapped_mem)%this->screen->pitch; |
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160 *y = (long)((char *)dst->pixels - mapped_mem)/this->screen->pitch; |
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161 if ( dst == this->screen ) { |
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162 *x += this->offset_x; |
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163 *y += this->offset_y; |
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164 } |
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165 } |
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166 |
| 0 | 167 #endif /* _SDL_fbvideo_h */ |