Mercurial > sdl-ios-xcode
annotate src/video/dga/SDL_dgavideo.c @ 1358:c71e05b4dc2e
More header massaging... works great on Windows. ;-)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 10 Feb 2006 06:48:43 +0000 |
| parents | 604d73db6802 |
| children | 19418e4422cb |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 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 Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
| 0 | 22 |
| 23 /* DGA 2.0 based SDL video driver implementation. | |
| 24 */ | |
| 25 | |
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26 #include <stdio.h> |
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27 |
| 0 | 28 #include <X11/Xlib.h> |
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29 #include <Xext/extensions/xf86dga.h> |
| 0 | 30 |
| 31 #include "SDL_video.h" | |
| 32 #include "SDL_mouse.h" | |
| 33 #include "SDL_sysvideo.h" | |
| 34 #include "SDL_pixels_c.h" | |
| 35 #include "SDL_events_c.h" | |
| 36 #include "SDL_dgavideo.h" | |
| 37 #include "SDL_dgamouse_c.h" | |
| 38 #include "SDL_dgaevents_c.h" | |
| 39 | |
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40 /* get function pointers... */ |
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41 #include "../x11/SDL_x11dyn.h" |
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42 |
| 0 | 43 /* Initialization/Query functions */ |
| 44 static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 45 static SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 46 static SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 47 static int DGA_SetColors(_THIS, int firstcolor, int ncolors, | |
| 48 SDL_Color *colors); | |
| 49 static int DGA_SetGammaRamp(_THIS, Uint16 *ramp); | |
| 50 static void DGA_VideoQuit(_THIS); | |
| 51 | |
| 52 /* Hardware surface functions */ | |
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53 static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size); |
| 0 | 54 static void DGA_FreeHWSurfaces(_THIS); |
| 55 static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 56 static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 57 static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst); | |
| 58 static int DGA_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 59 static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 60 static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 61 static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface); | |
| 62 | |
| 63 /* DGA driver bootstrap functions */ | |
| 64 | |
| 65 static int DGA_Available(void) | |
| 66 { | |
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67 const char *display = NULL; |
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68 Display *dpy = NULL; |
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69 int available = 0; |
| 0 | 70 |
| 71 /* The driver is available is available if the display is local | |
| 72 and the DGA 2.0+ extension is available, and we can map mem. | |
| 73 */ | |
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74 if ( SDL_X11_LoadSymbols() ) { |
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75 if ( (SDL_strncmp(pXDisplayName(display), ":", 1) == 0) || |
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76 (SDL_strncmp(pXDisplayName(display), "unix:", 5) == 0) ) { |
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77 dpy = pXOpenDisplay(display); |
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78 if ( dpy ) { |
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79 int events, errors, major, minor; |
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80 |
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81 if ( SDL_NAME(XDGAQueryExtension)(dpy, &events, &errors) && |
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82 SDL_NAME(XDGAQueryVersion)(dpy, &major, &minor) ) { |
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83 int screen; |
| 0 | 84 |
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85 screen = DefaultScreen(dpy); |
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86 if ( (major >= 2) && |
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87 SDL_NAME(XDGAOpenFramebuffer)(dpy, screen) ) { |
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88 available = 1; |
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89 SDL_NAME(XDGACloseFramebuffer)(dpy, screen); |
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90 } |
| 0 | 91 } |
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92 pXCloseDisplay(dpy); |
| 0 | 93 } |
| 94 } | |
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95 SDL_X11_UnloadSymbols(); |
| 0 | 96 } |
| 97 return(available); | |
| 98 } | |
| 99 | |
| 100 static void DGA_DeleteDevice(SDL_VideoDevice *device) | |
| 101 { | |
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102 if (device != NULL) { |
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103 SDL_free(device->hidden); |
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104 SDL_free(device); |
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105 SDL_X11_UnloadSymbols(); |
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106 } |
| 0 | 107 } |
| 108 | |
| 109 static SDL_VideoDevice *DGA_CreateDevice(int devindex) | |
| 110 { | |
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111 SDL_VideoDevice *device = NULL; |
| 0 | 112 |
| 113 /* Initialize all variables that we clean on shutdown */ | |
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114 if (SDL_X11_LoadSymbols()) { |
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115 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 116 if ( device ) { |
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117 SDL_memset(device, 0, (sizeof *device)); |
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118 device->hidden = (struct SDL_PrivateVideoData *) |
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119 SDL_malloc((sizeof *device->hidden)); |
| 0 | 120 } |
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121 if ( (device == NULL) || (device->hidden == NULL) ) { |
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122 SDL_OutOfMemory(); |
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123 if ( device ) { |
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124 SDL_free(device); |
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125 } |
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126 SDL_X11_UnloadSymbols(); |
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127 return(0); |
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128 } |
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129 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
| 0 | 130 |
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131 /* Set the function pointers */ |
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132 device->VideoInit = DGA_VideoInit; |
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133 device->ListModes = DGA_ListModes; |
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134 device->SetVideoMode = DGA_SetVideoMode; |
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135 device->SetColors = DGA_SetColors; |
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136 device->UpdateRects = NULL; |
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137 device->VideoQuit = DGA_VideoQuit; |
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138 device->AllocHWSurface = DGA_AllocHWSurface; |
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139 device->CheckHWBlit = DGA_CheckHWBlit; |
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140 device->FillHWRect = DGA_FillHWRect; |
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141 device->SetHWColorKey = NULL; |
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142 device->SetHWAlpha = NULL; |
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143 device->LockHWSurface = DGA_LockHWSurface; |
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144 device->UnlockHWSurface = DGA_UnlockHWSurface; |
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145 device->FlipHWSurface = DGA_FlipHWSurface; |
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146 device->FreeHWSurface = DGA_FreeHWSurface; |
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147 device->SetGammaRamp = DGA_SetGammaRamp; |
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148 device->GetGammaRamp = NULL; |
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149 device->SetCaption = NULL; |
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150 device->SetIcon = NULL; |
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151 device->IconifyWindow = NULL; |
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152 device->GrabInput = NULL; |
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153 device->GetWMInfo = NULL; |
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154 device->InitOSKeymap = DGA_InitOSKeymap; |
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155 device->PumpEvents = DGA_PumpEvents; |
| 0 | 156 |
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157 device->free = DGA_DeleteDevice; |
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158 } |
| 0 | 159 |
| 160 return device; | |
| 161 } | |
| 162 | |
| 163 VideoBootStrap DGA_bootstrap = { | |
| 164 "dga", "XFree86 DGA 2.0", | |
| 165 DGA_Available, DGA_CreateDevice | |
| 166 }; | |
| 167 | |
| 168 static int DGA_AddMode(_THIS, int bpp, int w, int h) | |
| 169 { | |
| 170 SDL_Rect *mode; | |
| 171 int i, index; | |
| 172 int next_mode; | |
| 173 | |
| 174 /* Check to see if we already have this mode */ | |
| 175 if ( bpp < 8 ) { /* Not supported */ | |
| 176 return(0); | |
| 177 } | |
| 178 index = ((bpp+7)/8)-1; | |
| 179 for ( i=0; i<SDL_nummodes[index]; ++i ) { | |
| 180 mode = SDL_modelist[index][i]; | |
| 181 if ( (mode->w == w) && (mode->h == h) ) { | |
| 182 return(0); | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 /* Set up the new video mode rectangle */ | |
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187 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 0 | 188 if ( mode == NULL ) { |
| 189 SDL_OutOfMemory(); | |
| 190 return(-1); | |
| 191 } | |
| 192 mode->x = 0; | |
| 193 mode->y = 0; | |
| 194 mode->w = w; | |
| 195 mode->h = h; | |
| 196 | |
| 197 /* Allocate the new list of modes, and fill in the new mode */ | |
| 198 next_mode = SDL_nummodes[index]; | |
| 199 SDL_modelist[index] = (SDL_Rect **) | |
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200 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 0 | 201 if ( SDL_modelist[index] == NULL ) { |
| 202 SDL_OutOfMemory(); | |
| 203 SDL_nummodes[index] = 0; | |
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204 SDL_free(mode); |
| 0 | 205 return(-1); |
| 206 } | |
| 207 SDL_modelist[index][next_mode] = mode; | |
| 208 SDL_modelist[index][next_mode+1] = NULL; | |
| 209 SDL_nummodes[index]++; | |
| 210 | |
| 211 return(0); | |
| 212 } | |
| 213 | |
| 214 /* This whole function is a hack. :) */ | |
| 215 static Uint32 get_video_size(_THIS) | |
| 216 { | |
| 217 /* This is a non-exported function from libXxf86dga.a */ | |
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218 extern unsigned char *SDL_NAME(XDGAGetMappedMemory)(int screen); |
| 0 | 219 FILE *proc; |
| 220 unsigned long mem; | |
| 221 unsigned start, stop; | |
| 222 char line[BUFSIZ]; | |
| 223 Uint32 size; | |
| 224 | |
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225 mem = (unsigned long)SDL_NAME(XDGAGetMappedMemory)(DGA_Screen); |
| 0 | 226 size = 0; |
| 227 proc = fopen("/proc/self/maps", "r"); | |
| 228 if ( proc ) { | |
| 229 while ( fgets(line, sizeof(line)-1, proc) ) { | |
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230 SDL_sscanf(line, "%x-%x", &start, &stop); |
| 0 | 231 if ( start == mem ) { |
| 232 size = (Uint32)((stop-start)/1024); | |
| 233 break; | |
| 234 } | |
| 235 } | |
| 236 fclose(proc); | |
| 237 } | |
| 238 return(size); | |
| 239 } | |
| 240 | |
| 241 #ifdef DGA_DEBUG | |
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242 static void PrintMode(SDL_NAME(XDGAMode) *mode) |
| 0 | 243 { |
| 244 printf("Mode: %s (%dx%d) at %d bpp (%f refresh, %d pitch) num: %d\n", | |
| 245 mode->name, | |
| 246 mode->viewportWidth, mode->viewportHeight, | |
| 247 mode->depth == 24 ? mode->bitsPerPixel : mode->depth, | |
| 248 mode->verticalRefresh, mode->bytesPerScanline, mode->num); | |
| 249 printf("\tRGB: 0x%8.8x 0x%8.8x 0x%8.8x (%d - %s)\n", | |
| 250 mode->redMask, mode->greenMask, mode->blueMask, | |
| 251 mode->visualClass, | |
| 252 mode->visualClass == TrueColor ? "truecolor" : | |
| 253 mode->visualClass == DirectColor ? "directcolor" : | |
| 254 mode->visualClass == PseudoColor ? "pseudocolor" : "unknown"); | |
| 255 printf("\tFlags: "); | |
| 256 if ( mode->flags & XDGAConcurrentAccess ) | |
| 257 printf(" XDGAConcurrentAccess"); | |
| 258 if ( mode->flags & XDGASolidFillRect ) | |
| 259 printf(" XDGASolidFillRect"); | |
| 260 if ( mode->flags & XDGABlitRect ) | |
| 261 printf(" XDGABlitRect"); | |
| 262 if ( mode->flags & XDGABlitTransRect ) | |
| 263 printf(" XDGABlitTransRect"); | |
| 264 if ( mode->flags & XDGAPixmap ) | |
| 265 printf(" XDGAPixmap"); | |
| 266 if ( mode->flags & XDGAInterlaced ) | |
| 267 printf(" XDGAInterlaced"); | |
| 268 if ( mode->flags & XDGADoublescan ) | |
| 269 printf(" XDGADoublescan"); | |
| 270 if ( mode->viewportFlags & XDGAFlipRetrace ) | |
| 271 printf(" XDGAFlipRetrace"); | |
| 272 if ( mode->viewportFlags & XDGAFlipImmediate ) | |
| 273 printf(" XDGAFlipImmediate"); | |
| 274 printf("\n"); | |
| 275 } | |
| 276 #endif /* DGA_DEBUG */ | |
| 277 | |
| 278 static int cmpmodes(const void *va, const void *vb) | |
| 279 { | |
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280 const SDL_NAME(XDGAMode) *a = (const SDL_NAME(XDGAMode) *)va; |
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281 const SDL_NAME(XDGAMode) *b = (const SDL_NAME(XDGAMode) *)vb; |
| 0 | 282 |
| 283 /* Prefer DirectColor visuals for otherwise equal modes */ | |
| 284 if ( (a->viewportWidth == b->viewportWidth) && | |
| 285 (b->viewportHeight == a->viewportHeight) ) { | |
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286 if ( a->visualClass == DirectColor ) |
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287 return -1; |
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288 if ( b->visualClass == DirectColor ) |
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289 return 1; |
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290 return 0; |
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291 } else if ( a->viewportWidth == b->viewportWidth ) { |
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292 return b->viewportHeight - a->viewportHeight; |
| 0 | 293 } else { |
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294 return b->viewportWidth - a->viewportWidth; |
| 0 | 295 } |
| 296 } | |
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297 static void UpdateHWInfo(_THIS, SDL_NAME(XDGAMode) *mode) |
| 0 | 298 { |
| 299 this->info.wm_available = 0; | |
| 300 this->info.hw_available = 1; | |
| 301 if ( mode->flags & XDGABlitRect ) { | |
| 302 this->info.blit_hw = 1; | |
| 303 } else { | |
| 304 this->info.blit_hw = 0; | |
| 305 } | |
| 306 if ( mode->flags & XDGABlitTransRect ) { | |
| 307 this->info.blit_hw_CC = 1; | |
| 308 } else { | |
| 309 this->info.blit_hw_CC = 0; | |
| 310 } | |
| 311 if ( mode->flags & XDGASolidFillRect ) { | |
| 312 this->info.blit_fill = 1; | |
| 313 } else { | |
| 314 this->info.blit_fill = 0; | |
| 315 } | |
| 316 this->info.video_mem = get_video_size(this); | |
| 317 } | |
| 318 | |
| 319 static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 320 { | |
| 321 const char *display; | |
| 322 int event_base, error_base; | |
| 323 int major_version, minor_version; | |
| 324 Visual *visual; | |
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325 SDL_NAME(XDGAMode) *modes; |
| 0 | 326 int i, num_modes; |
| 327 | |
| 328 /* Open the X11 display */ | |
| 329 display = NULL; /* Get it from DISPLAY environment variable */ | |
| 330 | |
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331 DGA_Display = pXOpenDisplay(display); |
| 0 | 332 if ( DGA_Display == NULL ) { |
| 333 SDL_SetError("Couldn't open X11 display"); | |
| 334 return(-1); | |
| 335 } | |
| 336 | |
| 337 /* Check for the DGA extension */ | |
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338 if ( ! SDL_NAME(XDGAQueryExtension)(DGA_Display, &event_base, &error_base) || |
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339 ! SDL_NAME(XDGAQueryVersion)(DGA_Display, &major_version, &minor_version) ) { |
| 0 | 340 SDL_SetError("DGA extension not available"); |
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341 pXCloseDisplay(DGA_Display); |
| 0 | 342 return(-1); |
| 343 } | |
| 344 if ( major_version < 2 ) { | |
| 345 SDL_SetError("DGA driver requires DGA 2.0 or newer"); | |
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346 pXCloseDisplay(DGA_Display); |
| 0 | 347 return(-1); |
| 348 } | |
| 349 DGA_event_base = event_base; | |
| 350 | |
| 351 /* Determine the current screen depth */ | |
| 352 visual = DefaultVisual(DGA_Display, DGA_Screen); | |
| 353 { | |
| 354 XPixmapFormatValues *pix_format; | |
| 355 int i, num_formats; | |
| 356 | |
| 357 vformat->BitsPerPixel = DefaultDepth(DGA_Display, DGA_Screen); | |
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358 pix_format = pXListPixmapFormats(DGA_Display, &num_formats); |
| 0 | 359 if ( pix_format == NULL ) { |
| 360 SDL_SetError("Couldn't determine screen formats"); | |
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361 pXCloseDisplay(DGA_Display); |
| 0 | 362 return(-1); |
| 363 } | |
| 364 for ( i=0; i<num_formats; ++i ) { | |
| 365 if ( vformat->BitsPerPixel == pix_format[i].depth ) | |
| 366 break; | |
| 367 } | |
| 368 if ( i != num_formats ) | |
| 369 vformat->BitsPerPixel = pix_format[i].bits_per_pixel; | |
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370 pXFree((char *)pix_format); |
| 0 | 371 } |
| 372 if ( vformat->BitsPerPixel > 8 ) { | |
| 373 vformat->Rmask = visual->red_mask; | |
| 374 vformat->Gmask = visual->green_mask; | |
| 375 vformat->Bmask = visual->blue_mask; | |
| 376 } | |
| 377 | |
| 378 /* Open access to the framebuffer */ | |
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379 if ( ! SDL_NAME(XDGAOpenFramebuffer)(DGA_Display, DGA_Screen) ) { |
| 0 | 380 SDL_SetError("Unable to map the video memory"); |
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381 pXCloseDisplay(DGA_Display); |
| 0 | 382 return(-1); |
| 383 } | |
| 384 | |
| 385 /* Query for the list of available video modes */ | |
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386 modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); |
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387 SDL_qsort(modes, num_modes, sizeof *modes, cmpmodes); |
| 0 | 388 for ( i=0; i<num_modes; ++i ) { |
| 389 #ifdef DGA_DEBUG | |
| 390 PrintMode(&modes[i]); | |
| 391 #endif | |
| 392 if ( (modes[i].visualClass == PseudoColor) || | |
| 393 (modes[i].visualClass == DirectColor) || | |
| 394 (modes[i].visualClass == TrueColor) ) { | |
| 395 DGA_AddMode(this, modes[i].bitsPerPixel, | |
| 396 modes[i].viewportWidth, | |
| 397 modes[i].viewportHeight); | |
| 398 } | |
| 399 } | |
| 400 UpdateHWInfo(this, modes); | |
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401 pXFree(modes); |
| 0 | 402 |
| 403 /* Create the hardware surface lock mutex */ | |
| 404 hw_lock = SDL_CreateMutex(); | |
| 405 if ( hw_lock == NULL ) { | |
| 406 SDL_SetError("Unable to create lock mutex"); | |
| 407 DGA_VideoQuit(this); | |
| 408 return(-1); | |
| 409 } | |
| 410 | |
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411 #ifdef LOCK_DGA_DISPLAY |
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412 /* Create the event lock so we're thread-safe.. :-/ */ |
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413 event_lock = SDL_CreateMutex(); |
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414 #endif /* LOCK_DGA_DISPLAY */ |
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415 |
| 0 | 416 /* We're done! */ |
| 417 return(0); | |
| 418 } | |
| 419 | |
| 420 SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 421 { | |
| 422 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 423 } | |
| 424 | |
| 425 /* Various screen update functions available */ | |
| 426 static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 427 | |
| 428 SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, | |
| 429 int width, int height, int bpp, Uint32 flags) | |
| 430 { | |
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431 SDL_NAME(XDGAMode) *modes; |
| 0 | 432 int i, num_modes; |
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433 SDL_NAME(XDGADevice) *mode; |
| 0 | 434 int screen_len; |
| 435 Uint8 *surfaces_mem; | |
| 436 int surfaces_len; | |
| 437 | |
| 438 /* Free any previous colormap */ | |
| 439 if ( DGA_colormap ) { | |
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440 pXFreeColormap(DGA_Display, DGA_colormap); |
| 0 | 441 DGA_colormap = 0; |
| 442 } | |
| 443 | |
| 444 /* Search for a matching video mode */ | |
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445 modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); |
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446 SDL_qsort(modes, num_modes, sizeof *modes, cmpmodes); |
| 0 | 447 for ( i=0; i<num_modes; ++i ) { |
| 448 int depth; | |
| 449 | |
| 450 | |
| 451 depth = modes[i].depth; | |
| 452 if ( depth == 24 ) { /* Distinguish between 24 and 32 bpp */ | |
| 453 depth = modes[i].bitsPerPixel; | |
| 454 } | |
| 455 if ( (depth == bpp) && | |
| 456 (modes[i].viewportWidth == width) && | |
| 457 (modes[i].viewportHeight == height) && | |
| 458 ((modes[i].visualClass == PseudoColor) || | |
| 459 (modes[i].visualClass == DirectColor) || | |
| 460 (modes[i].visualClass == TrueColor)) ) { | |
| 461 break; | |
| 462 } | |
| 463 } | |
| 464 if ( i == num_modes ) { | |
| 465 SDL_SetError("No matching video mode found"); | |
| 466 return(NULL); | |
| 467 } | |
| 468 | |
| 469 /* Set the video mode */ | |
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470 mode = SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, modes[i].num); |
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471 pXFree(modes); |
| 0 | 472 if ( mode == NULL ) { |
| 473 SDL_SetError("Unable to switch to requested mode"); | |
| 474 return(NULL); | |
| 475 } | |
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476 DGA_visualClass = mode->mode.visualClass; |
| 0 | 477 memory_base = (Uint8 *)mode->data; |
| 478 memory_pitch = mode->mode.bytesPerScanline; | |
| 479 | |
| 480 /* Set up the new mode framebuffer */ | |
| 481 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 482 current->w = mode->mode.viewportWidth; | |
| 483 current->h = mode->mode.viewportHeight; | |
| 484 current->pitch = memory_pitch; | |
| 485 current->pixels = memory_base; | |
| 486 if ( ! SDL_ReallocFormat(current, mode->mode.bitsPerPixel, | |
| 487 mode->mode.redMask, | |
| 488 mode->mode.greenMask, | |
| 489 mode->mode.blueMask, 0) ) { | |
| 490 return(NULL); | |
| 491 } | |
| 492 screen_len = current->h*current->pitch; | |
| 493 | |
| 494 /* Create a colormap if necessary */ | |
| 495 if ( (DGA_visualClass == PseudoColor) || | |
| 496 (DGA_visualClass == DirectColor) ) { | |
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497 DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, |
| 0 | 498 mode, AllocAll); |
| 499 if ( DGA_visualClass == PseudoColor ) { | |
| 500 current->flags |= SDL_HWPALETTE; | |
| 501 } else { | |
| 502 /* Initialize the colormap to the identity mapping */ | |
| 503 SDL_GetGammaRamp(0, 0, 0); | |
| 504 this->screen = current; | |
| 505 DGA_SetGammaRamp(this, this->gamma); | |
| 506 this->screen = NULL; | |
| 507 } | |
| 508 } else { | |
|
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509 DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, |
| 0 | 510 mode, AllocNone); |
| 511 } | |
|
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512 SDL_NAME(XDGAInstallColormap)(DGA_Display, DGA_Screen, DGA_colormap); |
| 0 | 513 |
| 514 /* Update the hardware capabilities */ | |
| 515 UpdateHWInfo(this, &mode->mode); | |
| 516 | |
| 517 /* Set up the information for hardware surfaces */ | |
| 518 surfaces_mem = (Uint8 *)current->pixels + screen_len; | |
| 519 surfaces_len = (mode->mode.imageHeight*current->pitch - screen_len); | |
| 520 | |
| 521 /* Update for double-buffering, if we can */ | |
|
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522 SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, 0, 0, XDGAFlipRetrace); |
| 0 | 523 if ( flags & SDL_DOUBLEBUF ) { |
| 524 if ( mode->mode.imageHeight >= (current->h*2) ) { | |
| 525 current->flags |= SDL_DOUBLEBUF; | |
| 526 flip_page = 0; | |
| 527 flip_yoffset[0] = 0; | |
| 528 flip_yoffset[1] = current->h; | |
| 529 flip_address[0] = memory_base; | |
| 530 flip_address[1] = memory_base+screen_len; | |
| 531 surfaces_mem += screen_len; | |
| 532 surfaces_len -= screen_len; | |
| 533 } | |
| 534 } | |
| 535 | |
| 536 /* Allocate memory tracking for hardware surfaces */ | |
| 537 DGA_FreeHWSurfaces(this); | |
| 538 if ( surfaces_len < 0 ) { | |
| 539 surfaces_len = 0; | |
| 540 } | |
|
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541 DGA_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
| 0 | 542 |
|
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543 /* Expose the back buffer as surface memory */ |
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544 if ( current->flags & SDL_DOUBLEBUF ) { |
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545 this->screen = current; |
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546 DGA_FlipHWSurface(this, current); |
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547 this->screen = NULL; |
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548 } |
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549 |
| 0 | 550 /* Set the update rectangle function */ |
| 551 this->UpdateRects = DGA_DirectUpdate; | |
| 552 | |
| 553 /* Enable mouse and keyboard support */ | |
| 554 { long input_mask; | |
| 555 input_mask = (KeyPressMask | KeyReleaseMask); | |
| 556 input_mask |= (ButtonPressMask | ButtonReleaseMask); | |
| 557 input_mask |= PointerMotionMask; | |
|
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558 SDL_NAME(XDGASelectInput)(DGA_Display, DGA_Screen, input_mask); |
| 0 | 559 } |
| 560 | |
| 561 /* We're done */ | |
| 562 return(current); | |
| 563 } | |
| 564 | |
| 565 #ifdef DGA_DEBUG | |
| 566 static void DGA_DumpHWSurfaces(_THIS) | |
| 567 { | |
| 568 vidmem_bucket *bucket; | |
| 569 | |
| 570 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 571 printf("\n"); | |
| 572 printf(" Base Size\n"); | |
| 573 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 574 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 575 if ( bucket->prev ) { | |
| 576 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 577 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 578 } | |
| 579 } else { | |
| 580 if ( bucket != &surfaces ) { | |
| 581 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 582 } | |
| 583 } | |
| 584 if ( bucket->next ) { | |
| 585 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 586 printf("Warning, corrupt bucket list! (next)\n"); | |
| 587 } | |
| 588 } | |
| 589 } | |
| 590 printf("\n"); | |
| 591 } | |
| 592 #endif | |
| 593 | |
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594 static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size) |
| 0 | 595 { |
|
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596 vidmem_bucket *bucket; |
|
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597 |
| 0 | 598 surfaces_memtotal = size; |
| 599 surfaces_memleft = size; | |
|
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600 |
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601 if ( surfaces_memleft > 0 ) { |
|
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602 bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
|
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603 if ( bucket == NULL ) { |
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604 SDL_OutOfMemory(); |
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605 return(-1); |
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606 } |
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607 bucket->prev = &surfaces; |
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608 bucket->used = 0; |
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609 bucket->dirty = 0; |
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610 bucket->base = base; |
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611 bucket->size = size; |
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612 bucket->next = NULL; |
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613 } else { |
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614 bucket = NULL; |
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615 } |
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616 |
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617 surfaces.prev = NULL; |
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618 surfaces.used = 1; |
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619 surfaces.dirty = 0; |
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620 surfaces.base = screen->pixels; |
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621 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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622 surfaces.next = bucket; |
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623 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 624 return(0); |
| 625 } | |
| 626 static void DGA_FreeHWSurfaces(_THIS) | |
| 627 { | |
| 628 vidmem_bucket *bucket, *freeable; | |
| 629 | |
| 630 bucket = surfaces.next; | |
| 631 while ( bucket ) { | |
| 632 freeable = bucket; | |
| 633 bucket = bucket->next; | |
|
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634 SDL_free(freeable); |
| 0 | 635 } |
| 636 surfaces.next = NULL; | |
| 637 } | |
| 638 | |
|
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639 static __inline__ void DGA_AddBusySurface(SDL_Surface *surface) |
|
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640 { |
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641 ((vidmem_bucket *)surface->hwdata)->dirty = 1; |
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642 } |
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643 |
|
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644 static __inline__ int DGA_IsSurfaceBusy(SDL_Surface *surface) |
|
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645 { |
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646 return ((vidmem_bucket *)surface->hwdata)->dirty; |
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647 } |
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648 |
|
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649 static __inline__ void DGA_WaitBusySurfaces(_THIS) |
|
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650 { |
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651 vidmem_bucket *bucket; |
|
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652 |
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|
653 /* Wait for graphic operations to complete */ |
|
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654 SDL_NAME(XDGASync)(DGA_Display, DGA_Screen); |
|
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655 |
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|
656 /* Clear all surface dirty bits */ |
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657 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
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658 bucket->dirty = 0; |
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659 } |
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|
660 } |
|
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|
661 |
| 0 | 662 static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface) |
| 663 { | |
| 664 vidmem_bucket *bucket; | |
| 665 int size; | |
| 666 int extra; | |
|
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667 int retval = 0; |
| 0 | 668 |
| 669 /* Temporarily, we only allow surfaces the same width as display. | |
| 670 Some blitters require the pitch between two hardware surfaces | |
| 671 to be the same. Others have interesting alignment restrictions. | |
| 672 */ | |
| 673 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 674 SDL_SetError("Surface requested wider than screen"); | |
| 675 return(-1); | |
| 676 } | |
| 677 surface->pitch = SDL_VideoSurface->pitch; | |
| 678 size = surface->h * surface->pitch; | |
| 679 #ifdef DGA_DEBUG | |
| 680 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 681 #endif | |
|
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682 LOCK_DISPLAY(); |
| 0 | 683 |
| 684 /* Quick check for available mem */ | |
| 685 if ( size > surfaces_memleft ) { | |
| 686 SDL_SetError("Not enough video memory"); | |
|
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687 retval = -1; |
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|
688 goto done; |
| 0 | 689 } |
| 690 | |
| 691 /* Search for an empty bucket big enough */ | |
| 692 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 693 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 694 break; | |
| 695 } | |
| 696 } | |
| 697 if ( bucket == NULL ) { | |
| 698 SDL_SetError("Video memory too fragmented"); | |
|
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699 retval = -1; |
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|
700 goto done; |
| 0 | 701 } |
| 702 | |
| 703 /* Create a new bucket for left-over memory */ | |
| 704 extra = (bucket->size - size); | |
| 705 if ( extra ) { | |
| 706 vidmem_bucket *newbucket; | |
| 707 | |
| 708 #ifdef DGA_DEBUG | |
| 709 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 710 #endif | |
|
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711 newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 0 | 712 if ( newbucket == NULL ) { |
| 713 SDL_OutOfMemory(); | |
|
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714 retval = -1; |
|
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|
715 goto done; |
| 0 | 716 } |
| 717 newbucket->prev = bucket; | |
| 718 newbucket->used = 0; | |
| 719 newbucket->base = bucket->base+size; | |
| 720 newbucket->size = extra; | |
| 721 newbucket->next = bucket->next; | |
| 722 if ( bucket->next ) { | |
| 723 bucket->next->prev = newbucket; | |
| 724 } | |
| 725 bucket->next = newbucket; | |
| 726 } | |
| 727 | |
| 728 /* Set the current bucket values and return it! */ | |
| 729 bucket->used = 1; | |
| 730 bucket->size = size; | |
|
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|
731 bucket->dirty = 0; |
| 0 | 732 #ifdef DGA_DEBUG |
| 733 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 734 #endif | |
| 735 surfaces_memleft -= size; | |
| 736 surface->flags |= SDL_HWSURFACE; | |
| 737 surface->pixels = bucket->base; | |
|
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738 surface->hwdata = (struct private_hwdata *)bucket; |
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|
739 done: |
|
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740 UNLOCK_DISPLAY(); |
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|
741 return(retval); |
| 0 | 742 } |
| 743 static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 744 { | |
| 745 vidmem_bucket *bucket, *freeable; | |
| 746 | |
| 747 /* Look for the bucket in the current list */ | |
|
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748 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
|
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749 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
|
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|
750 break; |
|
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751 } |
| 0 | 752 } |
|
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753 if ( bucket && bucket->used ) { |
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754 /* Add the memory back to the total */ |
| 0 | 755 #ifdef DGA_DEBUG |
| 756 printf("Freeing bucket of %d bytes\n", bucket->size); | |
| 757 #endif | |
|
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758 surfaces_memleft += bucket->size; |
| 0 | 759 |
|
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760 /* Can we merge the space with surrounding buckets? */ |
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761 bucket->used = 0; |
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762 if ( bucket->next && ! bucket->next->used ) { |
| 0 | 763 #ifdef DGA_DEBUG |
| 764 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); | |
| 765 #endif | |
|
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766 freeable = bucket->next; |
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767 bucket->size += bucket->next->size; |
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768 bucket->next = bucket->next->next; |
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769 if ( bucket->next ) { |
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770 bucket->next->prev = bucket; |
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771 } |
|
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772 SDL_free(freeable); |
| 0 | 773 } |
|
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774 if ( bucket->prev && ! bucket->prev->used ) { |
| 0 | 775 #ifdef DGA_DEBUG |
| 776 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); | |
| 777 #endif | |
|
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778 freeable = bucket; |
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779 bucket->prev->size += bucket->size; |
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780 bucket->prev->next = bucket->next; |
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781 if ( bucket->next ) { |
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782 bucket->next->prev = bucket->prev; |
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783 } |
|
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784 SDL_free(freeable); |
| 0 | 785 } |
| 786 } | |
| 787 surface->pixels = NULL; | |
|
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788 surface->hwdata = NULL; |
| 0 | 789 } |
| 790 | |
|
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791 static __inline__ void DGA_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y) |
| 0 | 792 { |
| 793 *x = (long)((Uint8 *)dst->pixels - memory_base)%memory_pitch; | |
| 794 *y = (long)((Uint8 *)dst->pixels - memory_base)/memory_pitch; | |
| 795 } | |
| 796 | |
| 797 static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 798 { | |
| 799 int x, y; | |
| 800 unsigned int w, h; | |
| 801 | |
| 802 /* Don't fill the visible part of the screen, wait until flipped */ | |
|
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803 LOCK_DISPLAY(); |
| 0 | 804 if ( was_flipped && (dst == this->screen) ) { |
|
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805 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 806 /* Keep waiting for the hardware ... */ ; |
| 807 was_flipped = 0; | |
| 808 } | |
|
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809 DGA_dst_to_xy(this, dst, &x, &y); |
| 0 | 810 x += rect->x; |
| 811 y += rect->y; | |
| 812 w = rect->w; | |
| 813 h = rect->h; | |
| 814 #if 0 | |
| 815 printf("Hardware accelerated rectangle fill: %dx%d at %d,%d\n", w, h, x, y); | |
| 816 #endif | |
|
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817 SDL_NAME(XDGAFillRectangle)(DGA_Display, DGA_Screen, x, y, w, h, color); |
|
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818 if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { |
|
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819 pXFlush(DGA_Display); |
|
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820 } |
|
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821 DGA_AddBusySurface(dst); |
|
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822 UNLOCK_DISPLAY(); |
| 0 | 823 return(0); |
| 824 } | |
| 825 | |
| 826 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 827 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 828 { | |
| 829 SDL_VideoDevice *this; | |
| 830 int srcx, srcy; | |
| 831 int dstx, dsty; | |
| 832 unsigned int w, h; | |
| 833 | |
| 834 this = current_video; | |
| 835 /* Don't blit to the visible part of the screen, wait until flipped */ | |
|
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836 LOCK_DISPLAY(); |
| 0 | 837 if ( was_flipped && (dst == this->screen) ) { |
|
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838 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 839 /* Keep waiting for the hardware ... */ ; |
| 840 was_flipped = 0; | |
| 841 } | |
|
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842 DGA_dst_to_xy(this, src, &srcx, &srcy); |
| 0 | 843 srcx += srcrect->x; |
| 844 srcy += srcrect->y; | |
|
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845 DGA_dst_to_xy(this, dst, &dstx, &dsty); |
| 0 | 846 dstx += dstrect->x; |
| 847 dsty += dstrect->y; | |
| 848 w = srcrect->w; | |
| 849 h = srcrect->h; | |
| 850 #if 0 | |
| 851 printf("Blitting %dx%d from %d,%d to %d,%d\n", w, h, srcx, srcy, dstx, dsty); | |
| 852 #endif | |
| 853 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
|
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854 SDL_NAME(XDGACopyTransparentArea)(DGA_Display, DGA_Screen, |
| 0 | 855 srcx, srcy, w, h, dstx, dsty, src->format->colorkey); |
| 856 } else { | |
|
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857 SDL_NAME(XDGACopyArea)(DGA_Display, DGA_Screen, |
| 0 | 858 srcx, srcy, w, h, dstx, dsty); |
| 859 } | |
|
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860 if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { |
|
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861 pXFlush(DGA_Display); |
|
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862 } |
|
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863 DGA_AddBusySurface(src); |
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864 DGA_AddBusySurface(dst); |
|
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865 UNLOCK_DISPLAY(); |
| 0 | 866 return(0); |
| 867 } | |
| 868 | |
| 869 static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
| 870 { | |
| 871 int accelerated; | |
| 872 | |
| 873 /* Set initial acceleration on */ | |
| 874 src->flags |= SDL_HWACCEL; | |
| 875 | |
| 876 /* Set the surface attributes */ | |
| 877 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 878 if ( ! this->info.blit_hw_A ) { | |
| 879 src->flags &= ~SDL_HWACCEL; | |
| 880 } | |
| 881 } | |
| 882 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 883 if ( ! this->info.blit_hw_CC ) { | |
| 884 src->flags &= ~SDL_HWACCEL; | |
| 885 } | |
| 886 } | |
| 887 | |
| 888 /* Check to see if final surface blit is accelerated */ | |
| 889 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 890 if ( accelerated ) { | |
| 891 src->map->hw_blit = HWAccelBlit; | |
| 892 } | |
| 893 return(accelerated); | |
| 894 } | |
| 895 | |
|
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|
896 static __inline__ void DGA_WaitFlip(_THIS) |
| 0 | 897 { |
| 898 if ( was_flipped ) { | |
|
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899 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 900 /* Keep waiting for the hardware ... */ ; |
| 901 was_flipped = 0; | |
| 902 } | |
| 903 } | |
| 904 | |
| 905 static int DGA_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 906 { | |
|
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907 if ( surface == this->screen ) { |
| 0 | 908 SDL_mutexP(hw_lock); |
|
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909 LOCK_DISPLAY(); |
|
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910 if ( DGA_IsSurfaceBusy(surface) ) { |
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911 DGA_WaitBusySurfaces(this); |
|
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912 } |
|
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913 DGA_WaitFlip(this); |
|
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914 UNLOCK_DISPLAY(); |
|
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915 } else { |
|
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916 if ( DGA_IsSurfaceBusy(surface) ) { |
|
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917 LOCK_DISPLAY(); |
|
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918 DGA_WaitBusySurfaces(this); |
|
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919 UNLOCK_DISPLAY(); |
|
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920 } |
| 0 | 921 } |
| 922 return(0); | |
| 923 } | |
| 924 static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 925 { | |
|
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926 if ( surface == this->screen ) { |
| 0 | 927 SDL_mutexV(hw_lock); |
| 928 } | |
| 929 } | |
| 930 | |
| 931 static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 932 { | |
| 933 /* Wait for vertical retrace and then flip display */ | |
|
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934 LOCK_DISPLAY(); |
|
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935 if ( DGA_IsSurfaceBusy(this->screen) ) { |
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936 DGA_WaitBusySurfaces(this); |
|
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937 } |
|
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|
938 DGA_WaitFlip(this); |
|
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939 SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, |
| 0 | 940 0, flip_yoffset[flip_page], XDGAFlipRetrace); |
|
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941 pXFlush(DGA_Display); |
|
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942 UNLOCK_DISPLAY(); |
| 0 | 943 was_flipped = 1; |
| 944 flip_page = !flip_page; | |
| 945 | |
| 946 surface->pixels = flip_address[flip_page]; | |
| 947 return(0); | |
| 948 } | |
| 949 | |
| 950 static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 951 { | |
| 952 /* The application is already updating the visible video memory */ | |
| 953 return; | |
| 954 } | |
| 955 | |
| 956 static int DGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 957 { | |
| 958 int i; | |
| 959 XColor *xcmap; | |
| 960 | |
| 961 /* This happens on initialization */ | |
| 962 if ( ! DGA_colormap ) { | |
| 963 return(0); | |
| 964 } | |
|
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965 xcmap = SDL_stack_alloc(XColor, ncolors); |
| 0 | 966 for ( i=0; i<ncolors; ++i ) { |
| 967 xcmap[i].pixel = firstcolor + i; | |
| 968 xcmap[i].red = (colors[i].r<<8)|colors[i].r; | |
| 969 xcmap[i].green = (colors[i].g<<8)|colors[i].g; | |
| 970 xcmap[i].blue = (colors[i].b<<8)|colors[i].b; | |
| 971 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 972 } | |
|
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973 LOCK_DISPLAY(); |
|
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974 pXStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); |
|
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975 pXSync(DGA_Display, False); |
|
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976 UNLOCK_DISPLAY(); |
|
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977 SDL_stack_free(xcmap); |
| 0 | 978 |
| 979 /* That was easy. :) */ | |
| 980 return(1); | |
| 981 } | |
| 982 | |
| 983 int DGA_SetGammaRamp(_THIS, Uint16 *ramp) | |
| 984 { | |
| 985 int i, ncolors; | |
| 986 XColor xcmap[256]; | |
| 987 | |
| 988 /* See if actually setting the gamma is supported */ | |
| 989 if ( DGA_visualClass != DirectColor ) { | |
| 990 SDL_SetError("Gamma correction not supported on this visual"); | |
| 991 return(-1); | |
| 992 } | |
| 993 | |
| 994 /* Calculate the appropriate palette for the given gamma ramp */ | |
| 995 if ( this->screen->format->BitsPerPixel <= 16 ) { | |
| 996 ncolors = 64; /* Is this right? */ | |
| 997 } else { | |
| 998 ncolors = 256; | |
| 999 } | |
| 1000 for ( i=0; i<ncolors; ++i ) { | |
| 1001 Uint8 c = (256 * i / ncolors); | |
| 1002 xcmap[i].pixel = SDL_MapRGB(this->screen->format, c, c, c); | |
| 1003 xcmap[i].red = ramp[0*256+c]; | |
| 1004 xcmap[i].green = ramp[1*256+c]; | |
| 1005 xcmap[i].blue = ramp[2*256+c]; | |
| 1006 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 1007 } | |
|
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1008 LOCK_DISPLAY(); |
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1009 pXStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); |
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1010 pXSync(DGA_Display, False); |
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1011 UNLOCK_DISPLAY(); |
| 0 | 1012 return(0); |
| 1013 } | |
| 1014 | |
| 1015 void DGA_VideoQuit(_THIS) | |
| 1016 { | |
| 1017 int i, j; | |
| 1018 | |
| 1019 if ( DGA_Display ) { | |
| 1020 /* Free colormap, if necessary */ | |
| 1021 if ( DGA_colormap ) { | |
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1022 pXFreeColormap(DGA_Display, DGA_colormap); |
| 0 | 1023 DGA_colormap = 0; |
| 1024 } | |
| 1025 | |
| 1026 /* Unmap memory and reset video mode */ | |
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1027 SDL_NAME(XDGACloseFramebuffer)(DGA_Display, DGA_Screen); |
| 0 | 1028 if ( this->screen ) { |
| 1029 /* Tell SDL not to free the pixels */ | |
| 1030 this->screen->pixels = NULL; | |
| 1031 } | |
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1032 SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, 0); |
| 0 | 1033 |
| 1034 /* Clear the lock mutex */ | |
| 1035 if ( hw_lock != NULL ) { | |
| 1036 SDL_DestroyMutex(hw_lock); | |
| 1037 hw_lock = NULL; | |
| 1038 } | |
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1039 #ifdef LOCK_DGA_DISPLAY |
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1040 if ( event_lock != NULL ) { |
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1041 SDL_DestroyMutex(event_lock); |
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1042 event_lock = NULL; |
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1043 } |
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1044 #endif /* LOCK_DGA_DISPLAY */ |
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1045 |
| 0 | 1046 |
| 1047 /* Clean up defined video modes */ | |
| 1048 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1049 if ( SDL_modelist[i] != NULL ) { | |
| 1050 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
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1051 SDL_free(SDL_modelist[i][j]); |
| 0 | 1052 } |
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1053 SDL_free(SDL_modelist[i]); |
| 0 | 1054 SDL_modelist[i] = NULL; |
| 1055 } | |
| 1056 } | |
| 1057 | |
| 1058 /* Clean up the memory bucket list */ | |
| 1059 DGA_FreeHWSurfaces(this); | |
| 1060 | |
| 1061 /* Close up the display */ | |
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1062 pXCloseDisplay(DGA_Display); |
| 0 | 1063 } |
| 1064 } |