Mercurial > sdl-ios-xcode
annotate src/video/dga/SDL_dgavideo.c @ 1338:604d73db6802
Removed uses of stdlib.h and string.h
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 07 Feb 2006 09:29:18 +0000 |
| parents | 3692456e7b0f |
| children | c71e05b4dc2e |
| 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.h" | |
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32 #include "SDL_stdlib.h" |
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33 #include "SDL_string.h" |
| 0 | 34 #include "SDL_error.h" |
| 35 #include "SDL_video.h" | |
| 36 #include "SDL_mouse.h" | |
| 37 #include "SDL_sysvideo.h" | |
| 38 #include "SDL_pixels_c.h" | |
| 39 #include "SDL_events_c.h" | |
| 40 #include "SDL_dgavideo.h" | |
| 41 #include "SDL_dgamouse_c.h" | |
| 42 #include "SDL_dgaevents_c.h" | |
| 43 | |
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44 /* get function pointers... */ |
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45 #include "../x11/SDL_x11dyn.h" |
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46 |
| 0 | 47 /* Initialization/Query functions */ |
| 48 static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 49 static SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 50 static SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 51 static int DGA_SetColors(_THIS, int firstcolor, int ncolors, | |
| 52 SDL_Color *colors); | |
| 53 static int DGA_SetGammaRamp(_THIS, Uint16 *ramp); | |
| 54 static void DGA_VideoQuit(_THIS); | |
| 55 | |
| 56 /* Hardware surface functions */ | |
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57 static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size); |
| 0 | 58 static void DGA_FreeHWSurfaces(_THIS); |
| 59 static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 60 static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 61 static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst); | |
| 62 static int DGA_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 63 static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 64 static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 65 static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface); | |
| 66 | |
| 67 /* DGA driver bootstrap functions */ | |
| 68 | |
| 69 static int DGA_Available(void) | |
| 70 { | |
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71 const char *display = NULL; |
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72 Display *dpy = NULL; |
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73 int available = 0; |
| 0 | 74 |
| 75 /* The driver is available is available if the display is local | |
| 76 and the DGA 2.0+ extension is available, and we can map mem. | |
| 77 */ | |
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78 if ( SDL_X11_LoadSymbols() ) { |
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79 if ( (SDL_strncmp(pXDisplayName(display), ":", 1) == 0) || |
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80 (SDL_strncmp(pXDisplayName(display), "unix:", 5) == 0) ) { |
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81 dpy = pXOpenDisplay(display); |
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82 if ( dpy ) { |
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83 int events, errors, major, minor; |
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84 |
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85 if ( SDL_NAME(XDGAQueryExtension)(dpy, &events, &errors) && |
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86 SDL_NAME(XDGAQueryVersion)(dpy, &major, &minor) ) { |
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87 int screen; |
| 0 | 88 |
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89 screen = DefaultScreen(dpy); |
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90 if ( (major >= 2) && |
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91 SDL_NAME(XDGAOpenFramebuffer)(dpy, screen) ) { |
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92 available = 1; |
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93 SDL_NAME(XDGACloseFramebuffer)(dpy, screen); |
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94 } |
| 0 | 95 } |
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96 pXCloseDisplay(dpy); |
| 0 | 97 } |
| 98 } | |
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99 SDL_X11_UnloadSymbols(); |
| 0 | 100 } |
| 101 return(available); | |
| 102 } | |
| 103 | |
| 104 static void DGA_DeleteDevice(SDL_VideoDevice *device) | |
| 105 { | |
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106 if (device != NULL) { |
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107 SDL_free(device->hidden); |
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108 SDL_free(device); |
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109 SDL_X11_UnloadSymbols(); |
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110 } |
| 0 | 111 } |
| 112 | |
| 113 static SDL_VideoDevice *DGA_CreateDevice(int devindex) | |
| 114 { | |
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115 SDL_VideoDevice *device = NULL; |
| 0 | 116 |
| 117 /* Initialize all variables that we clean on shutdown */ | |
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118 if (SDL_X11_LoadSymbols()) { |
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119 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 120 if ( device ) { |
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121 SDL_memset(device, 0, (sizeof *device)); |
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122 device->hidden = (struct SDL_PrivateVideoData *) |
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123 SDL_malloc((sizeof *device->hidden)); |
| 0 | 124 } |
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125 if ( (device == NULL) || (device->hidden == NULL) ) { |
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126 SDL_OutOfMemory(); |
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127 if ( device ) { |
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128 SDL_free(device); |
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129 } |
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130 SDL_X11_UnloadSymbols(); |
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131 return(0); |
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132 } |
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133 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
| 0 | 134 |
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135 /* Set the function pointers */ |
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136 device->VideoInit = DGA_VideoInit; |
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137 device->ListModes = DGA_ListModes; |
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138 device->SetVideoMode = DGA_SetVideoMode; |
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139 device->SetColors = DGA_SetColors; |
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140 device->UpdateRects = NULL; |
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141 device->VideoQuit = DGA_VideoQuit; |
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142 device->AllocHWSurface = DGA_AllocHWSurface; |
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143 device->CheckHWBlit = DGA_CheckHWBlit; |
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144 device->FillHWRect = DGA_FillHWRect; |
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145 device->SetHWColorKey = NULL; |
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146 device->SetHWAlpha = NULL; |
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147 device->LockHWSurface = DGA_LockHWSurface; |
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148 device->UnlockHWSurface = DGA_UnlockHWSurface; |
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149 device->FlipHWSurface = DGA_FlipHWSurface; |
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150 device->FreeHWSurface = DGA_FreeHWSurface; |
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151 device->SetGammaRamp = DGA_SetGammaRamp; |
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152 device->GetGammaRamp = NULL; |
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153 device->SetCaption = NULL; |
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154 device->SetIcon = NULL; |
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155 device->IconifyWindow = NULL; |
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156 device->GrabInput = NULL; |
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157 device->GetWMInfo = NULL; |
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158 device->InitOSKeymap = DGA_InitOSKeymap; |
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159 device->PumpEvents = DGA_PumpEvents; |
| 0 | 160 |
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161 device->free = DGA_DeleteDevice; |
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162 } |
| 0 | 163 |
| 164 return device; | |
| 165 } | |
| 166 | |
| 167 VideoBootStrap DGA_bootstrap = { | |
| 168 "dga", "XFree86 DGA 2.0", | |
| 169 DGA_Available, DGA_CreateDevice | |
| 170 }; | |
| 171 | |
| 172 static int DGA_AddMode(_THIS, int bpp, int w, int h) | |
| 173 { | |
| 174 SDL_Rect *mode; | |
| 175 int i, index; | |
| 176 int next_mode; | |
| 177 | |
| 178 /* Check to see if we already have this mode */ | |
| 179 if ( bpp < 8 ) { /* Not supported */ | |
| 180 return(0); | |
| 181 } | |
| 182 index = ((bpp+7)/8)-1; | |
| 183 for ( i=0; i<SDL_nummodes[index]; ++i ) { | |
| 184 mode = SDL_modelist[index][i]; | |
| 185 if ( (mode->w == w) && (mode->h == h) ) { | |
| 186 return(0); | |
| 187 } | |
| 188 } | |
| 189 | |
| 190 /* Set up the new video mode rectangle */ | |
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191 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 0 | 192 if ( mode == NULL ) { |
| 193 SDL_OutOfMemory(); | |
| 194 return(-1); | |
| 195 } | |
| 196 mode->x = 0; | |
| 197 mode->y = 0; | |
| 198 mode->w = w; | |
| 199 mode->h = h; | |
| 200 | |
| 201 /* Allocate the new list of modes, and fill in the new mode */ | |
| 202 next_mode = SDL_nummodes[index]; | |
| 203 SDL_modelist[index] = (SDL_Rect **) | |
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204 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 0 | 205 if ( SDL_modelist[index] == NULL ) { |
| 206 SDL_OutOfMemory(); | |
| 207 SDL_nummodes[index] = 0; | |
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208 SDL_free(mode); |
| 0 | 209 return(-1); |
| 210 } | |
| 211 SDL_modelist[index][next_mode] = mode; | |
| 212 SDL_modelist[index][next_mode+1] = NULL; | |
| 213 SDL_nummodes[index]++; | |
| 214 | |
| 215 return(0); | |
| 216 } | |
| 217 | |
| 218 /* This whole function is a hack. :) */ | |
| 219 static Uint32 get_video_size(_THIS) | |
| 220 { | |
| 221 /* This is a non-exported function from libXxf86dga.a */ | |
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222 extern unsigned char *SDL_NAME(XDGAGetMappedMemory)(int screen); |
| 0 | 223 FILE *proc; |
| 224 unsigned long mem; | |
| 225 unsigned start, stop; | |
| 226 char line[BUFSIZ]; | |
| 227 Uint32 size; | |
| 228 | |
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229 mem = (unsigned long)SDL_NAME(XDGAGetMappedMemory)(DGA_Screen); |
| 0 | 230 size = 0; |
| 231 proc = fopen("/proc/self/maps", "r"); | |
| 232 if ( proc ) { | |
| 233 while ( fgets(line, sizeof(line)-1, proc) ) { | |
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234 SDL_sscanf(line, "%x-%x", &start, &stop); |
| 0 | 235 if ( start == mem ) { |
| 236 size = (Uint32)((stop-start)/1024); | |
| 237 break; | |
| 238 } | |
| 239 } | |
| 240 fclose(proc); | |
| 241 } | |
| 242 return(size); | |
| 243 } | |
| 244 | |
| 245 #ifdef DGA_DEBUG | |
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246 static void PrintMode(SDL_NAME(XDGAMode) *mode) |
| 0 | 247 { |
| 248 printf("Mode: %s (%dx%d) at %d bpp (%f refresh, %d pitch) num: %d\n", | |
| 249 mode->name, | |
| 250 mode->viewportWidth, mode->viewportHeight, | |
| 251 mode->depth == 24 ? mode->bitsPerPixel : mode->depth, | |
| 252 mode->verticalRefresh, mode->bytesPerScanline, mode->num); | |
| 253 printf("\tRGB: 0x%8.8x 0x%8.8x 0x%8.8x (%d - %s)\n", | |
| 254 mode->redMask, mode->greenMask, mode->blueMask, | |
| 255 mode->visualClass, | |
| 256 mode->visualClass == TrueColor ? "truecolor" : | |
| 257 mode->visualClass == DirectColor ? "directcolor" : | |
| 258 mode->visualClass == PseudoColor ? "pseudocolor" : "unknown"); | |
| 259 printf("\tFlags: "); | |
| 260 if ( mode->flags & XDGAConcurrentAccess ) | |
| 261 printf(" XDGAConcurrentAccess"); | |
| 262 if ( mode->flags & XDGASolidFillRect ) | |
| 263 printf(" XDGASolidFillRect"); | |
| 264 if ( mode->flags & XDGABlitRect ) | |
| 265 printf(" XDGABlitRect"); | |
| 266 if ( mode->flags & XDGABlitTransRect ) | |
| 267 printf(" XDGABlitTransRect"); | |
| 268 if ( mode->flags & XDGAPixmap ) | |
| 269 printf(" XDGAPixmap"); | |
| 270 if ( mode->flags & XDGAInterlaced ) | |
| 271 printf(" XDGAInterlaced"); | |
| 272 if ( mode->flags & XDGADoublescan ) | |
| 273 printf(" XDGADoublescan"); | |
| 274 if ( mode->viewportFlags & XDGAFlipRetrace ) | |
| 275 printf(" XDGAFlipRetrace"); | |
| 276 if ( mode->viewportFlags & XDGAFlipImmediate ) | |
| 277 printf(" XDGAFlipImmediate"); | |
| 278 printf("\n"); | |
| 279 } | |
| 280 #endif /* DGA_DEBUG */ | |
| 281 | |
| 282 static int cmpmodes(const void *va, const void *vb) | |
| 283 { | |
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284 const SDL_NAME(XDGAMode) *a = (const SDL_NAME(XDGAMode) *)va; |
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285 const SDL_NAME(XDGAMode) *b = (const SDL_NAME(XDGAMode) *)vb; |
| 0 | 286 |
| 287 /* Prefer DirectColor visuals for otherwise equal modes */ | |
| 288 if ( (a->viewportWidth == b->viewportWidth) && | |
| 289 (b->viewportHeight == a->viewportHeight) ) { | |
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290 if ( a->visualClass == DirectColor ) |
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291 return -1; |
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292 if ( b->visualClass == DirectColor ) |
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293 return 1; |
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294 return 0; |
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295 } else if ( a->viewportWidth == b->viewportWidth ) { |
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296 return b->viewportHeight - a->viewportHeight; |
| 0 | 297 } else { |
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298 return b->viewportWidth - a->viewportWidth; |
| 0 | 299 } |
| 300 } | |
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301 static void UpdateHWInfo(_THIS, SDL_NAME(XDGAMode) *mode) |
| 0 | 302 { |
| 303 this->info.wm_available = 0; | |
| 304 this->info.hw_available = 1; | |
| 305 if ( mode->flags & XDGABlitRect ) { | |
| 306 this->info.blit_hw = 1; | |
| 307 } else { | |
| 308 this->info.blit_hw = 0; | |
| 309 } | |
| 310 if ( mode->flags & XDGABlitTransRect ) { | |
| 311 this->info.blit_hw_CC = 1; | |
| 312 } else { | |
| 313 this->info.blit_hw_CC = 0; | |
| 314 } | |
| 315 if ( mode->flags & XDGASolidFillRect ) { | |
| 316 this->info.blit_fill = 1; | |
| 317 } else { | |
| 318 this->info.blit_fill = 0; | |
| 319 } | |
| 320 this->info.video_mem = get_video_size(this); | |
| 321 } | |
| 322 | |
| 323 static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 324 { | |
| 325 const char *display; | |
| 326 int event_base, error_base; | |
| 327 int major_version, minor_version; | |
| 328 Visual *visual; | |
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329 SDL_NAME(XDGAMode) *modes; |
| 0 | 330 int i, num_modes; |
| 331 | |
| 332 /* Open the X11 display */ | |
| 333 display = NULL; /* Get it from DISPLAY environment variable */ | |
| 334 | |
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335 DGA_Display = pXOpenDisplay(display); |
| 0 | 336 if ( DGA_Display == NULL ) { |
| 337 SDL_SetError("Couldn't open X11 display"); | |
| 338 return(-1); | |
| 339 } | |
| 340 | |
| 341 /* Check for the DGA extension */ | |
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342 if ( ! SDL_NAME(XDGAQueryExtension)(DGA_Display, &event_base, &error_base) || |
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343 ! SDL_NAME(XDGAQueryVersion)(DGA_Display, &major_version, &minor_version) ) { |
| 0 | 344 SDL_SetError("DGA extension not available"); |
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345 pXCloseDisplay(DGA_Display); |
| 0 | 346 return(-1); |
| 347 } | |
| 348 if ( major_version < 2 ) { | |
| 349 SDL_SetError("DGA driver requires DGA 2.0 or newer"); | |
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350 pXCloseDisplay(DGA_Display); |
| 0 | 351 return(-1); |
| 352 } | |
| 353 DGA_event_base = event_base; | |
| 354 | |
| 355 /* Determine the current screen depth */ | |
| 356 visual = DefaultVisual(DGA_Display, DGA_Screen); | |
| 357 { | |
| 358 XPixmapFormatValues *pix_format; | |
| 359 int i, num_formats; | |
| 360 | |
| 361 vformat->BitsPerPixel = DefaultDepth(DGA_Display, DGA_Screen); | |
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362 pix_format = pXListPixmapFormats(DGA_Display, &num_formats); |
| 0 | 363 if ( pix_format == NULL ) { |
| 364 SDL_SetError("Couldn't determine screen formats"); | |
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365 pXCloseDisplay(DGA_Display); |
| 0 | 366 return(-1); |
| 367 } | |
| 368 for ( i=0; i<num_formats; ++i ) { | |
| 369 if ( vformat->BitsPerPixel == pix_format[i].depth ) | |
| 370 break; | |
| 371 } | |
| 372 if ( i != num_formats ) | |
| 373 vformat->BitsPerPixel = pix_format[i].bits_per_pixel; | |
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374 pXFree((char *)pix_format); |
| 0 | 375 } |
| 376 if ( vformat->BitsPerPixel > 8 ) { | |
| 377 vformat->Rmask = visual->red_mask; | |
| 378 vformat->Gmask = visual->green_mask; | |
| 379 vformat->Bmask = visual->blue_mask; | |
| 380 } | |
| 381 | |
| 382 /* Open access to the framebuffer */ | |
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383 if ( ! SDL_NAME(XDGAOpenFramebuffer)(DGA_Display, DGA_Screen) ) { |
| 0 | 384 SDL_SetError("Unable to map the video memory"); |
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385 pXCloseDisplay(DGA_Display); |
| 0 | 386 return(-1); |
| 387 } | |
| 388 | |
| 389 /* Query for the list of available video modes */ | |
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390 modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); |
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391 SDL_qsort(modes, num_modes, sizeof *modes, cmpmodes); |
| 0 | 392 for ( i=0; i<num_modes; ++i ) { |
| 393 #ifdef DGA_DEBUG | |
| 394 PrintMode(&modes[i]); | |
| 395 #endif | |
| 396 if ( (modes[i].visualClass == PseudoColor) || | |
| 397 (modes[i].visualClass == DirectColor) || | |
| 398 (modes[i].visualClass == TrueColor) ) { | |
| 399 DGA_AddMode(this, modes[i].bitsPerPixel, | |
| 400 modes[i].viewportWidth, | |
| 401 modes[i].viewportHeight); | |
| 402 } | |
| 403 } | |
| 404 UpdateHWInfo(this, modes); | |
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405 pXFree(modes); |
| 0 | 406 |
| 407 /* Create the hardware surface lock mutex */ | |
| 408 hw_lock = SDL_CreateMutex(); | |
| 409 if ( hw_lock == NULL ) { | |
| 410 SDL_SetError("Unable to create lock mutex"); | |
| 411 DGA_VideoQuit(this); | |
| 412 return(-1); | |
| 413 } | |
| 414 | |
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415 #ifdef LOCK_DGA_DISPLAY |
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416 /* Create the event lock so we're thread-safe.. :-/ */ |
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417 event_lock = SDL_CreateMutex(); |
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418 #endif /* LOCK_DGA_DISPLAY */ |
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419 |
| 0 | 420 /* We're done! */ |
| 421 return(0); | |
| 422 } | |
| 423 | |
| 424 SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 425 { | |
| 426 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 427 } | |
| 428 | |
| 429 /* Various screen update functions available */ | |
| 430 static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 431 | |
| 432 SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, | |
| 433 int width, int height, int bpp, Uint32 flags) | |
| 434 { | |
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435 SDL_NAME(XDGAMode) *modes; |
| 0 | 436 int i, num_modes; |
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437 SDL_NAME(XDGADevice) *mode; |
| 0 | 438 int screen_len; |
| 439 Uint8 *surfaces_mem; | |
| 440 int surfaces_len; | |
| 441 | |
| 442 /* Free any previous colormap */ | |
| 443 if ( DGA_colormap ) { | |
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444 pXFreeColormap(DGA_Display, DGA_colormap); |
| 0 | 445 DGA_colormap = 0; |
| 446 } | |
| 447 | |
| 448 /* Search for a matching video mode */ | |
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449 modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); |
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450 SDL_qsort(modes, num_modes, sizeof *modes, cmpmodes); |
| 0 | 451 for ( i=0; i<num_modes; ++i ) { |
| 452 int depth; | |
| 453 | |
| 454 | |
| 455 depth = modes[i].depth; | |
| 456 if ( depth == 24 ) { /* Distinguish between 24 and 32 bpp */ | |
| 457 depth = modes[i].bitsPerPixel; | |
| 458 } | |
| 459 if ( (depth == bpp) && | |
| 460 (modes[i].viewportWidth == width) && | |
| 461 (modes[i].viewportHeight == height) && | |
| 462 ((modes[i].visualClass == PseudoColor) || | |
| 463 (modes[i].visualClass == DirectColor) || | |
| 464 (modes[i].visualClass == TrueColor)) ) { | |
| 465 break; | |
| 466 } | |
| 467 } | |
| 468 if ( i == num_modes ) { | |
| 469 SDL_SetError("No matching video mode found"); | |
| 470 return(NULL); | |
| 471 } | |
| 472 | |
| 473 /* Set the video mode */ | |
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474 mode = SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, modes[i].num); |
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475 pXFree(modes); |
| 0 | 476 if ( mode == NULL ) { |
| 477 SDL_SetError("Unable to switch to requested mode"); | |
| 478 return(NULL); | |
| 479 } | |
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480 DGA_visualClass = mode->mode.visualClass; |
| 0 | 481 memory_base = (Uint8 *)mode->data; |
| 482 memory_pitch = mode->mode.bytesPerScanline; | |
| 483 | |
| 484 /* Set up the new mode framebuffer */ | |
| 485 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 486 current->w = mode->mode.viewportWidth; | |
| 487 current->h = mode->mode.viewportHeight; | |
| 488 current->pitch = memory_pitch; | |
| 489 current->pixels = memory_base; | |
| 490 if ( ! SDL_ReallocFormat(current, mode->mode.bitsPerPixel, | |
| 491 mode->mode.redMask, | |
| 492 mode->mode.greenMask, | |
| 493 mode->mode.blueMask, 0) ) { | |
| 494 return(NULL); | |
| 495 } | |
| 496 screen_len = current->h*current->pitch; | |
| 497 | |
| 498 /* Create a colormap if necessary */ | |
| 499 if ( (DGA_visualClass == PseudoColor) || | |
| 500 (DGA_visualClass == DirectColor) ) { | |
|
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501 DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, |
| 0 | 502 mode, AllocAll); |
| 503 if ( DGA_visualClass == PseudoColor ) { | |
| 504 current->flags |= SDL_HWPALETTE; | |
| 505 } else { | |
| 506 /* Initialize the colormap to the identity mapping */ | |
| 507 SDL_GetGammaRamp(0, 0, 0); | |
| 508 this->screen = current; | |
| 509 DGA_SetGammaRamp(this, this->gamma); | |
| 510 this->screen = NULL; | |
| 511 } | |
| 512 } else { | |
|
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513 DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, |
| 0 | 514 mode, AllocNone); |
| 515 } | |
|
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516 SDL_NAME(XDGAInstallColormap)(DGA_Display, DGA_Screen, DGA_colormap); |
| 0 | 517 |
| 518 /* Update the hardware capabilities */ | |
| 519 UpdateHWInfo(this, &mode->mode); | |
| 520 | |
| 521 /* Set up the information for hardware surfaces */ | |
| 522 surfaces_mem = (Uint8 *)current->pixels + screen_len; | |
| 523 surfaces_len = (mode->mode.imageHeight*current->pitch - screen_len); | |
| 524 | |
| 525 /* Update for double-buffering, if we can */ | |
|
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526 SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, 0, 0, XDGAFlipRetrace); |
| 0 | 527 if ( flags & SDL_DOUBLEBUF ) { |
| 528 if ( mode->mode.imageHeight >= (current->h*2) ) { | |
| 529 current->flags |= SDL_DOUBLEBUF; | |
| 530 flip_page = 0; | |
| 531 flip_yoffset[0] = 0; | |
| 532 flip_yoffset[1] = current->h; | |
| 533 flip_address[0] = memory_base; | |
| 534 flip_address[1] = memory_base+screen_len; | |
| 535 surfaces_mem += screen_len; | |
| 536 surfaces_len -= screen_len; | |
| 537 } | |
| 538 } | |
| 539 | |
| 540 /* Allocate memory tracking for hardware surfaces */ | |
| 541 DGA_FreeHWSurfaces(this); | |
| 542 if ( surfaces_len < 0 ) { | |
| 543 surfaces_len = 0; | |
| 544 } | |
|
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545 DGA_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
| 0 | 546 |
|
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547 /* Expose the back buffer as surface memory */ |
|
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548 if ( current->flags & SDL_DOUBLEBUF ) { |
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549 this->screen = current; |
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550 DGA_FlipHWSurface(this, current); |
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551 this->screen = NULL; |
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552 } |
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553 |
| 0 | 554 /* Set the update rectangle function */ |
| 555 this->UpdateRects = DGA_DirectUpdate; | |
| 556 | |
| 557 /* Enable mouse and keyboard support */ | |
| 558 { long input_mask; | |
| 559 input_mask = (KeyPressMask | KeyReleaseMask); | |
| 560 input_mask |= (ButtonPressMask | ButtonReleaseMask); | |
| 561 input_mask |= PointerMotionMask; | |
|
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562 SDL_NAME(XDGASelectInput)(DGA_Display, DGA_Screen, input_mask); |
| 0 | 563 } |
| 564 | |
| 565 /* We're done */ | |
| 566 return(current); | |
| 567 } | |
| 568 | |
| 569 #ifdef DGA_DEBUG | |
| 570 static void DGA_DumpHWSurfaces(_THIS) | |
| 571 { | |
| 572 vidmem_bucket *bucket; | |
| 573 | |
| 574 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 575 printf("\n"); | |
| 576 printf(" Base Size\n"); | |
| 577 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 578 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 579 if ( bucket->prev ) { | |
| 580 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 581 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 582 } | |
| 583 } else { | |
| 584 if ( bucket != &surfaces ) { | |
| 585 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 586 } | |
| 587 } | |
| 588 if ( bucket->next ) { | |
| 589 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 590 printf("Warning, corrupt bucket list! (next)\n"); | |
| 591 } | |
| 592 } | |
| 593 } | |
| 594 printf("\n"); | |
| 595 } | |
| 596 #endif | |
| 597 | |
|
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598 static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size) |
| 0 | 599 { |
|
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600 vidmem_bucket *bucket; |
|
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601 |
| 0 | 602 surfaces_memtotal = size; |
| 603 surfaces_memleft = size; | |
|
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604 |
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605 if ( surfaces_memleft > 0 ) { |
|
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606 bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
|
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607 if ( bucket == NULL ) { |
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608 SDL_OutOfMemory(); |
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609 return(-1); |
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610 } |
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611 bucket->prev = &surfaces; |
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612 bucket->used = 0; |
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613 bucket->dirty = 0; |
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614 bucket->base = base; |
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615 bucket->size = size; |
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616 bucket->next = NULL; |
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617 } else { |
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618 bucket = NULL; |
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619 } |
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620 |
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621 surfaces.prev = NULL; |
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622 surfaces.used = 1; |
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623 surfaces.dirty = 0; |
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624 surfaces.base = screen->pixels; |
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625 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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626 surfaces.next = bucket; |
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627 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 628 return(0); |
| 629 } | |
| 630 static void DGA_FreeHWSurfaces(_THIS) | |
| 631 { | |
| 632 vidmem_bucket *bucket, *freeable; | |
| 633 | |
| 634 bucket = surfaces.next; | |
| 635 while ( bucket ) { | |
| 636 freeable = bucket; | |
| 637 bucket = bucket->next; | |
|
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638 SDL_free(freeable); |
| 0 | 639 } |
| 640 surfaces.next = NULL; | |
| 641 } | |
| 642 | |
|
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643 static __inline__ void DGA_AddBusySurface(SDL_Surface *surface) |
|
101
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644 { |
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645 ((vidmem_bucket *)surface->hwdata)->dirty = 1; |
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646 } |
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|
647 |
|
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648 static __inline__ int DGA_IsSurfaceBusy(SDL_Surface *surface) |
|
101
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649 { |
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650 return ((vidmem_bucket *)surface->hwdata)->dirty; |
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651 } |
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652 |
|
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653 static __inline__ void DGA_WaitBusySurfaces(_THIS) |
|
101
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654 { |
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|
655 vidmem_bucket *bucket; |
|
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656 |
|
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|
657 /* Wait for graphic operations to complete */ |
|
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658 SDL_NAME(XDGASync)(DGA_Display, DGA_Screen); |
|
101
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659 |
|
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|
660 /* Clear all surface dirty bits */ |
|
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661 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
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662 bucket->dirty = 0; |
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663 } |
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|
664 } |
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|
665 |
| 0 | 666 static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface) |
| 667 { | |
| 668 vidmem_bucket *bucket; | |
| 669 int size; | |
| 670 int extra; | |
|
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671 int retval = 0; |
| 0 | 672 |
| 673 /* Temporarily, we only allow surfaces the same width as display. | |
| 674 Some blitters require the pitch between two hardware surfaces | |
| 675 to be the same. Others have interesting alignment restrictions. | |
| 676 */ | |
| 677 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 678 SDL_SetError("Surface requested wider than screen"); | |
| 679 return(-1); | |
| 680 } | |
| 681 surface->pitch = SDL_VideoSurface->pitch; | |
| 682 size = surface->h * surface->pitch; | |
| 683 #ifdef DGA_DEBUG | |
| 684 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 685 #endif | |
|
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|
686 LOCK_DISPLAY(); |
| 0 | 687 |
| 688 /* Quick check for available mem */ | |
| 689 if ( size > surfaces_memleft ) { | |
| 690 SDL_SetError("Not enough video memory"); | |
|
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691 retval = -1; |
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|
692 goto done; |
| 0 | 693 } |
| 694 | |
| 695 /* Search for an empty bucket big enough */ | |
| 696 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 697 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 698 break; | |
| 699 } | |
| 700 } | |
| 701 if ( bucket == NULL ) { | |
| 702 SDL_SetError("Video memory too fragmented"); | |
|
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703 retval = -1; |
|
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|
704 goto done; |
| 0 | 705 } |
| 706 | |
| 707 /* Create a new bucket for left-over memory */ | |
| 708 extra = (bucket->size - size); | |
| 709 if ( extra ) { | |
| 710 vidmem_bucket *newbucket; | |
| 711 | |
| 712 #ifdef DGA_DEBUG | |
| 713 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 714 #endif | |
|
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|
715 newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 0 | 716 if ( newbucket == NULL ) { |
| 717 SDL_OutOfMemory(); | |
|
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|
718 retval = -1; |
|
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|
719 goto done; |
| 0 | 720 } |
| 721 newbucket->prev = bucket; | |
| 722 newbucket->used = 0; | |
| 723 newbucket->base = bucket->base+size; | |
| 724 newbucket->size = extra; | |
| 725 newbucket->next = bucket->next; | |
| 726 if ( bucket->next ) { | |
| 727 bucket->next->prev = newbucket; | |
| 728 } | |
| 729 bucket->next = newbucket; | |
| 730 } | |
| 731 | |
| 732 /* Set the current bucket values and return it! */ | |
| 733 bucket->used = 1; | |
| 734 bucket->size = size; | |
|
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|
735 bucket->dirty = 0; |
| 0 | 736 #ifdef DGA_DEBUG |
| 737 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 738 #endif | |
| 739 surfaces_memleft -= size; | |
| 740 surface->flags |= SDL_HWSURFACE; | |
| 741 surface->pixels = bucket->base; | |
|
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|
742 surface->hwdata = (struct private_hwdata *)bucket; |
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|
743 done: |
|
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|
744 UNLOCK_DISPLAY(); |
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|
745 return(retval); |
| 0 | 746 } |
| 747 static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 748 { | |
| 749 vidmem_bucket *bucket, *freeable; | |
| 750 | |
| 751 /* Look for the bucket in the current list */ | |
|
102
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|
752 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
|
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753 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
|
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754 break; |
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755 } |
| 0 | 756 } |
|
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757 if ( bucket && bucket->used ) { |
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758 /* Add the memory back to the total */ |
| 0 | 759 #ifdef DGA_DEBUG |
| 760 printf("Freeing bucket of %d bytes\n", bucket->size); | |
| 761 #endif | |
|
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762 surfaces_memleft += bucket->size; |
| 0 | 763 |
|
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764 /* Can we merge the space with surrounding buckets? */ |
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765 bucket->used = 0; |
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766 if ( bucket->next && ! bucket->next->used ) { |
| 0 | 767 #ifdef DGA_DEBUG |
| 768 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); | |
| 769 #endif | |
|
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770 freeable = bucket->next; |
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771 bucket->size += bucket->next->size; |
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772 bucket->next = bucket->next->next; |
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773 if ( bucket->next ) { |
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774 bucket->next->prev = bucket; |
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775 } |
|
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776 SDL_free(freeable); |
| 0 | 777 } |
|
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778 if ( bucket->prev && ! bucket->prev->used ) { |
| 0 | 779 #ifdef DGA_DEBUG |
| 780 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); | |
| 781 #endif | |
|
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782 freeable = bucket; |
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783 bucket->prev->size += bucket->size; |
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784 bucket->prev->next = bucket->next; |
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785 if ( bucket->next ) { |
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786 bucket->next->prev = bucket->prev; |
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787 } |
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788 SDL_free(freeable); |
| 0 | 789 } |
| 790 } | |
| 791 surface->pixels = NULL; | |
|
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792 surface->hwdata = NULL; |
| 0 | 793 } |
| 794 | |
|
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795 static __inline__ void DGA_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y) |
| 0 | 796 { |
| 797 *x = (long)((Uint8 *)dst->pixels - memory_base)%memory_pitch; | |
| 798 *y = (long)((Uint8 *)dst->pixels - memory_base)/memory_pitch; | |
| 799 } | |
| 800 | |
| 801 static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 802 { | |
| 803 int x, y; | |
| 804 unsigned int w, h; | |
| 805 | |
| 806 /* Don't fill the visible part of the screen, wait until flipped */ | |
|
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807 LOCK_DISPLAY(); |
| 0 | 808 if ( was_flipped && (dst == this->screen) ) { |
|
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809 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 810 /* Keep waiting for the hardware ... */ ; |
| 811 was_flipped = 0; | |
| 812 } | |
|
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813 DGA_dst_to_xy(this, dst, &x, &y); |
| 0 | 814 x += rect->x; |
| 815 y += rect->y; | |
| 816 w = rect->w; | |
| 817 h = rect->h; | |
| 818 #if 0 | |
| 819 printf("Hardware accelerated rectangle fill: %dx%d at %d,%d\n", w, h, x, y); | |
| 820 #endif | |
|
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821 SDL_NAME(XDGAFillRectangle)(DGA_Display, DGA_Screen, x, y, w, h, color); |
|
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822 if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { |
|
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823 pXFlush(DGA_Display); |
|
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824 } |
|
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825 DGA_AddBusySurface(dst); |
|
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826 UNLOCK_DISPLAY(); |
| 0 | 827 return(0); |
| 828 } | |
| 829 | |
| 830 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 831 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 832 { | |
| 833 SDL_VideoDevice *this; | |
| 834 int srcx, srcy; | |
| 835 int dstx, dsty; | |
| 836 unsigned int w, h; | |
| 837 | |
| 838 this = current_video; | |
| 839 /* Don't blit to the visible part of the screen, wait until flipped */ | |
|
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840 LOCK_DISPLAY(); |
| 0 | 841 if ( was_flipped && (dst == this->screen) ) { |
|
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842 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 843 /* Keep waiting for the hardware ... */ ; |
| 844 was_flipped = 0; | |
| 845 } | |
|
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846 DGA_dst_to_xy(this, src, &srcx, &srcy); |
| 0 | 847 srcx += srcrect->x; |
| 848 srcy += srcrect->y; | |
|
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849 DGA_dst_to_xy(this, dst, &dstx, &dsty); |
| 0 | 850 dstx += dstrect->x; |
| 851 dsty += dstrect->y; | |
| 852 w = srcrect->w; | |
| 853 h = srcrect->h; | |
| 854 #if 0 | |
| 855 printf("Blitting %dx%d from %d,%d to %d,%d\n", w, h, srcx, srcy, dstx, dsty); | |
| 856 #endif | |
| 857 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
|
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858 SDL_NAME(XDGACopyTransparentArea)(DGA_Display, DGA_Screen, |
| 0 | 859 srcx, srcy, w, h, dstx, dsty, src->format->colorkey); |
| 860 } else { | |
|
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861 SDL_NAME(XDGACopyArea)(DGA_Display, DGA_Screen, |
| 0 | 862 srcx, srcy, w, h, dstx, dsty); |
| 863 } | |
|
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864 if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { |
|
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865 pXFlush(DGA_Display); |
|
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866 } |
|
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867 DGA_AddBusySurface(src); |
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868 DGA_AddBusySurface(dst); |
|
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869 UNLOCK_DISPLAY(); |
| 0 | 870 return(0); |
| 871 } | |
| 872 | |
| 873 static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
| 874 { | |
| 875 int accelerated; | |
| 876 | |
| 877 /* Set initial acceleration on */ | |
| 878 src->flags |= SDL_HWACCEL; | |
| 879 | |
| 880 /* Set the surface attributes */ | |
| 881 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 882 if ( ! this->info.blit_hw_A ) { | |
| 883 src->flags &= ~SDL_HWACCEL; | |
| 884 } | |
| 885 } | |
| 886 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 887 if ( ! this->info.blit_hw_CC ) { | |
| 888 src->flags &= ~SDL_HWACCEL; | |
| 889 } | |
| 890 } | |
| 891 | |
| 892 /* Check to see if final surface blit is accelerated */ | |
| 893 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 894 if ( accelerated ) { | |
| 895 src->map->hw_blit = HWAccelBlit; | |
| 896 } | |
| 897 return(accelerated); | |
| 898 } | |
| 899 | |
|
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|
900 static __inline__ void DGA_WaitFlip(_THIS) |
| 0 | 901 { |
| 902 if ( was_flipped ) { | |
|
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903 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 904 /* Keep waiting for the hardware ... */ ; |
| 905 was_flipped = 0; | |
| 906 } | |
| 907 } | |
| 908 | |
| 909 static int DGA_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 910 { | |
|
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|
911 if ( surface == this->screen ) { |
| 0 | 912 SDL_mutexP(hw_lock); |
|
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|
913 LOCK_DISPLAY(); |
|
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914 if ( DGA_IsSurfaceBusy(surface) ) { |
|
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915 DGA_WaitBusySurfaces(this); |
|
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916 } |
|
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917 DGA_WaitFlip(this); |
|
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918 UNLOCK_DISPLAY(); |
|
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919 } else { |
|
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920 if ( DGA_IsSurfaceBusy(surface) ) { |
|
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921 LOCK_DISPLAY(); |
|
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922 DGA_WaitBusySurfaces(this); |
|
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923 UNLOCK_DISPLAY(); |
|
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924 } |
| 0 | 925 } |
| 926 return(0); | |
| 927 } | |
| 928 static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 929 { | |
|
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930 if ( surface == this->screen ) { |
| 0 | 931 SDL_mutexV(hw_lock); |
| 932 } | |
| 933 } | |
| 934 | |
| 935 static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 936 { | |
| 937 /* Wait for vertical retrace and then flip display */ | |
|
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938 LOCK_DISPLAY(); |
|
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939 if ( DGA_IsSurfaceBusy(this->screen) ) { |
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940 DGA_WaitBusySurfaces(this); |
|
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941 } |
|
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|
942 DGA_WaitFlip(this); |
|
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943 SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, |
| 0 | 944 0, flip_yoffset[flip_page], XDGAFlipRetrace); |
|
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|
945 pXFlush(DGA_Display); |
|
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|
946 UNLOCK_DISPLAY(); |
| 0 | 947 was_flipped = 1; |
| 948 flip_page = !flip_page; | |
| 949 | |
| 950 surface->pixels = flip_address[flip_page]; | |
| 951 return(0); | |
| 952 } | |
| 953 | |
| 954 static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 955 { | |
| 956 /* The application is already updating the visible video memory */ | |
| 957 return; | |
| 958 } | |
| 959 | |
| 960 static int DGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 961 { | |
| 962 int i; | |
| 963 XColor *xcmap; | |
| 964 | |
| 965 /* This happens on initialization */ | |
| 966 if ( ! DGA_colormap ) { | |
| 967 return(0); | |
| 968 } | |
|
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|
969 xcmap = SDL_stack_alloc(XColor, ncolors); |
| 0 | 970 for ( i=0; i<ncolors; ++i ) { |
| 971 xcmap[i].pixel = firstcolor + i; | |
| 972 xcmap[i].red = (colors[i].r<<8)|colors[i].r; | |
| 973 xcmap[i].green = (colors[i].g<<8)|colors[i].g; | |
| 974 xcmap[i].blue = (colors[i].b<<8)|colors[i].b; | |
| 975 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 976 } | |
|
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|
977 LOCK_DISPLAY(); |
|
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|
978 pXStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); |
|
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|
979 pXSync(DGA_Display, False); |
|
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980 UNLOCK_DISPLAY(); |
|
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981 SDL_stack_free(xcmap); |
| 0 | 982 |
| 983 /* That was easy. :) */ | |
| 984 return(1); | |
| 985 } | |
| 986 | |
| 987 int DGA_SetGammaRamp(_THIS, Uint16 *ramp) | |
| 988 { | |
| 989 int i, ncolors; | |
| 990 XColor xcmap[256]; | |
| 991 | |
| 992 /* See if actually setting the gamma is supported */ | |
| 993 if ( DGA_visualClass != DirectColor ) { | |
| 994 SDL_SetError("Gamma correction not supported on this visual"); | |
| 995 return(-1); | |
| 996 } | |
| 997 | |
| 998 /* Calculate the appropriate palette for the given gamma ramp */ | |
| 999 if ( this->screen->format->BitsPerPixel <= 16 ) { | |
| 1000 ncolors = 64; /* Is this right? */ | |
| 1001 } else { | |
| 1002 ncolors = 256; | |
| 1003 } | |
| 1004 for ( i=0; i<ncolors; ++i ) { | |
| 1005 Uint8 c = (256 * i / ncolors); | |
| 1006 xcmap[i].pixel = SDL_MapRGB(this->screen->format, c, c, c); | |
| 1007 xcmap[i].red = ramp[0*256+c]; | |
| 1008 xcmap[i].green = ramp[1*256+c]; | |
| 1009 xcmap[i].blue = ramp[2*256+c]; | |
| 1010 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 1011 } | |
|
101
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1012 LOCK_DISPLAY(); |
|
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Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
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1013 pXStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); |
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1014 pXSync(DGA_Display, False); |
|
101
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1015 UNLOCK_DISPLAY(); |
| 0 | 1016 return(0); |
| 1017 } | |
| 1018 | |
| 1019 void DGA_VideoQuit(_THIS) | |
| 1020 { | |
| 1021 int i, j; | |
| 1022 | |
| 1023 if ( DGA_Display ) { | |
| 1024 /* Free colormap, if necessary */ | |
| 1025 if ( DGA_colormap ) { | |
|
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parents:
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1026 pXFreeColormap(DGA_Display, DGA_colormap); |
| 0 | 1027 DGA_colormap = 0; |
| 1028 } | |
| 1029 | |
| 1030 /* Unmap memory and reset video mode */ | |
|
292
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Added SDL_LockRect() and SDL_UnlockRect()
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parents:
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diff
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1031 SDL_NAME(XDGACloseFramebuffer)(DGA_Display, DGA_Screen); |
| 0 | 1032 if ( this->screen ) { |
| 1033 /* Tell SDL not to free the pixels */ | |
| 1034 this->screen->pixels = NULL; | |
| 1035 } | |
|
292
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Added SDL_LockRect() and SDL_UnlockRect()
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parents:
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1036 SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, 0); |
| 0 | 1037 |
| 1038 /* Clear the lock mutex */ | |
| 1039 if ( hw_lock != NULL ) { | |
| 1040 SDL_DestroyMutex(hw_lock); | |
| 1041 hw_lock = NULL; | |
| 1042 } | |
|
101
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1043 #ifdef LOCK_DGA_DISPLAY |
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1044 if ( event_lock != NULL ) { |
|
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1045 SDL_DestroyMutex(event_lock); |
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1046 event_lock = NULL; |
|
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1047 } |
|
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1048 #endif /* LOCK_DGA_DISPLAY */ |
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1049 |
| 0 | 1050 |
| 1051 /* Clean up defined video modes */ | |
| 1052 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1053 if ( SDL_modelist[i] != NULL ) { | |
| 1054 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
|
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Sam Lantinga <slouken@libsdl.org>
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|
1055 SDL_free(SDL_modelist[i][j]); |
| 0 | 1056 } |
|
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1057 SDL_free(SDL_modelist[i]); |
| 0 | 1058 SDL_modelist[i] = NULL; |
| 1059 } | |
| 1060 } | |
| 1061 | |
| 1062 /* Clean up the memory bucket list */ | |
| 1063 DGA_FreeHWSurfaces(this); | |
| 1064 | |
| 1065 /* Close up the display */ | |
|
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1066 pXCloseDisplay(DGA_Display); |
| 0 | 1067 } |
| 1068 } |