Mercurial > sdl-ios-xcode
annotate src/video/dga/SDL_dgavideo.c @ 3914:4fd12011d8d6 SDL-1.2
Quartz code should use F13, F14, and F15 keys instead of PrintScreen,
ScrollLock, and Pause, since that's what's on the standard Apple keyboards
(minus the laptops, which have neither set). Ideally we'll find a better way
to distinguish this...the keys being replaced would be correct on a USB
keyboard for Windows. Sigh.
Fixes Bugzilla #301.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 14 Feb 2007 10:23:23 +0000 |
| parents | cc6bea4bb90d |
| children | c121d94672cb e7ec5ee35d54 |
| 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 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* DGA 2.0 based SDL video driver implementation. | |
| 25 */ | |
| 26 | |
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27 #include <stdio.h> |
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28 |
| 0 | 29 #include <X11/Xlib.h> |
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30 #include "../Xext/extensions/xf86dga.h" |
| 0 | 31 |
| 32 #include "SDL_video.h" | |
| 33 #include "SDL_mouse.h" | |
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34 #include "../SDL_sysvideo.h" |
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35 #include "../SDL_pixels_c.h" |
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36 #include "../../events/SDL_events_c.h" |
| 0 | 37 #include "SDL_dgavideo.h" |
| 38 #include "SDL_dgamouse_c.h" | |
| 39 #include "SDL_dgaevents_c.h" | |
| 40 | |
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41 /* get function pointers... */ |
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42 #include "../x11/SDL_x11dyn.h" |
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43 |
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44 /*#define DGA_DEBUG*/ |
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45 |
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46 /* Heheh we're using X11 event code */ |
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47 extern void X11_SaveScreenSaver(Display *display, int *saved_timeout, BOOL *dpms); |
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48 extern void X11_DisableScreenSaver(Display *display); |
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49 extern void X11_RestoreScreenSaver(Display *display, int saved_timeout, BOOL dpms); |
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50 |
| 0 | 51 /* Initialization/Query functions */ |
| 52 static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 53 static SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 54 static SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 55 static int DGA_SetColors(_THIS, int firstcolor, int ncolors, | |
| 56 SDL_Color *colors); | |
| 57 static int DGA_SetGammaRamp(_THIS, Uint16 *ramp); | |
| 58 static void DGA_VideoQuit(_THIS); | |
| 59 | |
| 60 /* Hardware surface functions */ | |
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61 static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size); |
| 0 | 62 static void DGA_FreeHWSurfaces(_THIS); |
| 63 static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 64 static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 65 static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst); | |
| 66 static int DGA_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 67 static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 68 static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 69 static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface); | |
| 70 | |
| 71 /* DGA driver bootstrap functions */ | |
| 72 | |
| 73 static int DGA_Available(void) | |
| 74 { | |
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75 const char *display = NULL; |
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76 Display *dpy = NULL; |
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77 int available = 0; |
| 0 | 78 |
| 79 /* The driver is available is available if the display is local | |
| 80 and the DGA 2.0+ extension is available, and we can map mem. | |
| 81 */ | |
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82 if ( SDL_X11_LoadSymbols() ) { |
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83 if ( (SDL_strncmp(XDisplayName(display), ":", 1) == 0) || |
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84 (SDL_strncmp(XDisplayName(display), "unix:", 5) == 0) ) { |
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85 dpy = XOpenDisplay(display); |
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86 if ( dpy ) { |
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87 int events, errors, major, minor; |
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88 |
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89 if ( SDL_NAME(XDGAQueryExtension)(dpy, &events, &errors) && |
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90 SDL_NAME(XDGAQueryVersion)(dpy, &major, &minor) ) { |
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91 int screen; |
| 0 | 92 |
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93 screen = DefaultScreen(dpy); |
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94 if ( (major >= 2) && |
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95 SDL_NAME(XDGAOpenFramebuffer)(dpy, screen) ) { |
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96 available = 1; |
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97 SDL_NAME(XDGACloseFramebuffer)(dpy, screen); |
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98 } |
| 0 | 99 } |
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100 XCloseDisplay(dpy); |
| 0 | 101 } |
| 102 } | |
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103 SDL_X11_UnloadSymbols(); |
| 0 | 104 } |
| 105 return(available); | |
| 106 } | |
| 107 | |
| 108 static void DGA_DeleteDevice(SDL_VideoDevice *device) | |
| 109 { | |
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110 if (device != NULL) { |
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111 SDL_free(device->hidden); |
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112 SDL_free(device); |
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113 SDL_X11_UnloadSymbols(); |
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114 } |
| 0 | 115 } |
| 116 | |
| 117 static SDL_VideoDevice *DGA_CreateDevice(int devindex) | |
| 118 { | |
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119 SDL_VideoDevice *device = NULL; |
| 0 | 120 |
| 121 /* Initialize all variables that we clean on shutdown */ | |
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122 if (SDL_X11_LoadSymbols()) { |
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123 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 124 if ( device ) { |
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125 SDL_memset(device, 0, (sizeof *device)); |
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126 device->hidden = (struct SDL_PrivateVideoData *) |
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127 SDL_malloc((sizeof *device->hidden)); |
| 0 | 128 } |
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129 if ( (device == NULL) || (device->hidden == NULL) ) { |
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130 SDL_OutOfMemory(); |
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131 if ( device ) { |
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132 SDL_free(device); |
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133 } |
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134 SDL_X11_UnloadSymbols(); |
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135 return(0); |
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136 } |
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137 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
| 0 | 138 |
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139 /* Set the function pointers */ |
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140 device->VideoInit = DGA_VideoInit; |
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141 device->ListModes = DGA_ListModes; |
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142 device->SetVideoMode = DGA_SetVideoMode; |
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143 device->SetColors = DGA_SetColors; |
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144 device->UpdateRects = NULL; |
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145 device->VideoQuit = DGA_VideoQuit; |
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146 device->AllocHWSurface = DGA_AllocHWSurface; |
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147 device->CheckHWBlit = DGA_CheckHWBlit; |
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148 device->FillHWRect = DGA_FillHWRect; |
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149 device->SetHWColorKey = NULL; |
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150 device->SetHWAlpha = NULL; |
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151 device->LockHWSurface = DGA_LockHWSurface; |
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152 device->UnlockHWSurface = DGA_UnlockHWSurface; |
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153 device->FlipHWSurface = DGA_FlipHWSurface; |
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154 device->FreeHWSurface = DGA_FreeHWSurface; |
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155 device->SetGammaRamp = DGA_SetGammaRamp; |
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156 device->GetGammaRamp = NULL; |
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157 device->SetCaption = NULL; |
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158 device->SetIcon = NULL; |
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159 device->IconifyWindow = NULL; |
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160 device->GrabInput = NULL; |
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161 device->GetWMInfo = NULL; |
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162 device->InitOSKeymap = DGA_InitOSKeymap; |
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163 device->PumpEvents = DGA_PumpEvents; |
| 0 | 164 |
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165 device->free = DGA_DeleteDevice; |
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166 } |
| 0 | 167 |
| 168 return device; | |
| 169 } | |
| 170 | |
| 171 VideoBootStrap DGA_bootstrap = { | |
| 172 "dga", "XFree86 DGA 2.0", | |
| 173 DGA_Available, DGA_CreateDevice | |
| 174 }; | |
| 175 | |
| 176 static int DGA_AddMode(_THIS, int bpp, int w, int h) | |
| 177 { | |
| 178 SDL_Rect *mode; | |
| 1800 | 179 int index; |
| 0 | 180 int next_mode; |
| 181 | |
| 182 /* Check to see if we already have this mode */ | |
| 183 if ( bpp < 8 ) { /* Not supported */ | |
| 184 return(0); | |
| 185 } | |
| 186 index = ((bpp+7)/8)-1; | |
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187 if ( SDL_nummodes[index] > 0 ) { |
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188 mode = SDL_modelist[index][SDL_nummodes[index]-1]; |
| 0 | 189 if ( (mode->w == w) && (mode->h == h) ) { |
| 190 return(0); | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 /* Set up the new video mode rectangle */ | |
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195 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 0 | 196 if ( mode == NULL ) { |
| 197 SDL_OutOfMemory(); | |
| 198 return(-1); | |
| 199 } | |
| 200 mode->x = 0; | |
| 201 mode->y = 0; | |
| 202 mode->w = w; | |
| 203 mode->h = h; | |
| 204 | |
| 205 /* Allocate the new list of modes, and fill in the new mode */ | |
| 206 next_mode = SDL_nummodes[index]; | |
| 207 SDL_modelist[index] = (SDL_Rect **) | |
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208 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 0 | 209 if ( SDL_modelist[index] == NULL ) { |
| 210 SDL_OutOfMemory(); | |
| 211 SDL_nummodes[index] = 0; | |
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212 SDL_free(mode); |
| 0 | 213 return(-1); |
| 214 } | |
| 215 SDL_modelist[index][next_mode] = mode; | |
| 216 SDL_modelist[index][next_mode+1] = NULL; | |
| 217 SDL_nummodes[index]++; | |
| 218 | |
| 219 return(0); | |
| 220 } | |
| 221 | |
| 222 /* This whole function is a hack. :) */ | |
| 223 static Uint32 get_video_size(_THIS) | |
| 224 { | |
| 225 /* This is a non-exported function from libXxf86dga.a */ | |
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226 extern unsigned char *SDL_NAME(XDGAGetMappedMemory)(int screen); |
| 0 | 227 FILE *proc; |
| 228 unsigned long mem; | |
| 229 unsigned start, stop; | |
| 230 char line[BUFSIZ]; | |
| 231 Uint32 size; | |
| 232 | |
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233 mem = (unsigned long)SDL_NAME(XDGAGetMappedMemory)(DGA_Screen); |
| 0 | 234 size = 0; |
| 235 proc = fopen("/proc/self/maps", "r"); | |
| 236 if ( proc ) { | |
| 237 while ( fgets(line, sizeof(line)-1, proc) ) { | |
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238 SDL_sscanf(line, "%x-%x", &start, &stop); |
| 0 | 239 if ( start == mem ) { |
| 240 size = (Uint32)((stop-start)/1024); | |
| 241 break; | |
| 242 } | |
| 243 } | |
| 244 fclose(proc); | |
| 245 } | |
| 246 return(size); | |
| 247 } | |
| 248 | |
| 249 #ifdef DGA_DEBUG | |
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250 static void PrintMode(SDL_NAME(XDGAMode) *mode) |
| 0 | 251 { |
| 252 printf("Mode: %s (%dx%d) at %d bpp (%f refresh, %d pitch) num: %d\n", | |
| 253 mode->name, | |
| 254 mode->viewportWidth, mode->viewportHeight, | |
| 255 mode->depth == 24 ? mode->bitsPerPixel : mode->depth, | |
| 256 mode->verticalRefresh, mode->bytesPerScanline, mode->num); | |
| 257 printf("\tRGB: 0x%8.8x 0x%8.8x 0x%8.8x (%d - %s)\n", | |
| 258 mode->redMask, mode->greenMask, mode->blueMask, | |
| 259 mode->visualClass, | |
| 260 mode->visualClass == TrueColor ? "truecolor" : | |
| 261 mode->visualClass == DirectColor ? "directcolor" : | |
| 262 mode->visualClass == PseudoColor ? "pseudocolor" : "unknown"); | |
| 263 printf("\tFlags: "); | |
| 264 if ( mode->flags & XDGAConcurrentAccess ) | |
| 265 printf(" XDGAConcurrentAccess"); | |
| 266 if ( mode->flags & XDGASolidFillRect ) | |
| 267 printf(" XDGASolidFillRect"); | |
| 268 if ( mode->flags & XDGABlitRect ) | |
| 269 printf(" XDGABlitRect"); | |
| 270 if ( mode->flags & XDGABlitTransRect ) | |
| 271 printf(" XDGABlitTransRect"); | |
| 272 if ( mode->flags & XDGAPixmap ) | |
| 273 printf(" XDGAPixmap"); | |
| 274 if ( mode->flags & XDGAInterlaced ) | |
| 275 printf(" XDGAInterlaced"); | |
| 276 if ( mode->flags & XDGADoublescan ) | |
| 277 printf(" XDGADoublescan"); | |
| 278 if ( mode->viewportFlags & XDGAFlipRetrace ) | |
| 279 printf(" XDGAFlipRetrace"); | |
| 280 if ( mode->viewportFlags & XDGAFlipImmediate ) | |
| 281 printf(" XDGAFlipImmediate"); | |
| 282 printf("\n"); | |
| 283 } | |
| 284 #endif /* DGA_DEBUG */ | |
| 285 | |
| 286 static int cmpmodes(const void *va, const void *vb) | |
| 287 { | |
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288 const SDL_NAME(XDGAMode) *a = (const SDL_NAME(XDGAMode) *)va; |
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289 const SDL_NAME(XDGAMode) *b = (const SDL_NAME(XDGAMode) *)vb; |
| 0 | 290 |
| 291 if ( (a->viewportWidth == b->viewportWidth) && | |
| 292 (b->viewportHeight == a->viewportHeight) ) { | |
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293 /* Prefer 32 bpp over 24 bpp, 16 bpp over 15 bpp */ |
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294 int a_bpp = a->depth == 24 ? a->bitsPerPixel : a->depth; |
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295 int b_bpp = b->depth == 24 ? b->bitsPerPixel : b->depth; |
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296 if ( a_bpp != b_bpp ) { |
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297 return b_bpp - a_bpp; |
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298 } |
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299 /* Prefer DirectColor visuals, for gamma support */ |
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300 if ( a->visualClass == DirectColor && b->visualClass != DirectColor ) |
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301 return -1; |
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302 if ( b->visualClass == DirectColor && a->visualClass != DirectColor ) |
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303 return 1; |
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304 /* Maintain server refresh rate sorting */ |
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305 return a->num - b->num; |
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306 } else if ( a->viewportWidth == b->viewportWidth ) { |
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307 return b->viewportHeight - a->viewportHeight; |
| 0 | 308 } else { |
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309 return b->viewportWidth - a->viewportWidth; |
| 0 | 310 } |
| 311 } | |
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312 static void UpdateHWInfo(_THIS, SDL_NAME(XDGAMode) *mode) |
| 0 | 313 { |
| 314 this->info.wm_available = 0; | |
| 315 this->info.hw_available = 1; | |
| 316 if ( mode->flags & XDGABlitRect ) { | |
| 317 this->info.blit_hw = 1; | |
| 318 } else { | |
| 319 this->info.blit_hw = 0; | |
| 320 } | |
| 321 if ( mode->flags & XDGABlitTransRect ) { | |
| 322 this->info.blit_hw_CC = 1; | |
| 323 } else { | |
| 324 this->info.blit_hw_CC = 0; | |
| 325 } | |
| 326 if ( mode->flags & XDGASolidFillRect ) { | |
| 327 this->info.blit_fill = 1; | |
| 328 } else { | |
| 329 this->info.blit_fill = 0; | |
| 330 } | |
| 331 this->info.video_mem = get_video_size(this); | |
| 332 } | |
| 333 | |
| 334 static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 335 { | |
| 336 const char *display; | |
| 337 int event_base, error_base; | |
| 338 int major_version, minor_version; | |
| 339 Visual *visual; | |
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340 SDL_NAME(XDGAMode) *modes; |
| 0 | 341 int i, num_modes; |
| 342 | |
| 343 /* Open the X11 display */ | |
| 344 display = NULL; /* Get it from DISPLAY environment variable */ | |
| 345 | |
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346 DGA_Display = XOpenDisplay(display); |
| 0 | 347 if ( DGA_Display == NULL ) { |
| 348 SDL_SetError("Couldn't open X11 display"); | |
| 349 return(-1); | |
| 350 } | |
| 351 | |
| 352 /* Check for the DGA extension */ | |
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353 if ( ! SDL_NAME(XDGAQueryExtension)(DGA_Display, &event_base, &error_base) || |
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354 ! SDL_NAME(XDGAQueryVersion)(DGA_Display, &major_version, &minor_version) ) { |
| 0 | 355 SDL_SetError("DGA extension not available"); |
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356 XCloseDisplay(DGA_Display); |
| 0 | 357 return(-1); |
| 358 } | |
| 359 if ( major_version < 2 ) { | |
| 360 SDL_SetError("DGA driver requires DGA 2.0 or newer"); | |
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361 XCloseDisplay(DGA_Display); |
| 0 | 362 return(-1); |
| 363 } | |
| 364 DGA_event_base = event_base; | |
| 365 | |
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366 /* Determine the current screen size */ |
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367 this->info.current_w = DisplayWidth(DGA_Display, DGA_Screen); |
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368 this->info.current_h = DisplayHeight(DGA_Display, DGA_Screen); |
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369 |
| 0 | 370 /* Determine the current screen depth */ |
| 371 visual = DefaultVisual(DGA_Display, DGA_Screen); | |
| 372 { | |
| 373 XPixmapFormatValues *pix_format; | |
| 374 int i, num_formats; | |
| 375 | |
| 376 vformat->BitsPerPixel = DefaultDepth(DGA_Display, DGA_Screen); | |
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377 pix_format = XListPixmapFormats(DGA_Display, &num_formats); |
| 0 | 378 if ( pix_format == NULL ) { |
| 379 SDL_SetError("Couldn't determine screen formats"); | |
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380 XCloseDisplay(DGA_Display); |
| 0 | 381 return(-1); |
| 382 } | |
| 383 for ( i=0; i<num_formats; ++i ) { | |
| 384 if ( vformat->BitsPerPixel == pix_format[i].depth ) | |
| 385 break; | |
| 386 } | |
| 387 if ( i != num_formats ) | |
| 388 vformat->BitsPerPixel = pix_format[i].bits_per_pixel; | |
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389 XFree((char *)pix_format); |
| 0 | 390 } |
| 391 if ( vformat->BitsPerPixel > 8 ) { | |
| 392 vformat->Rmask = visual->red_mask; | |
| 393 vformat->Gmask = visual->green_mask; | |
| 394 vformat->Bmask = visual->blue_mask; | |
| 395 } | |
| 396 | |
| 397 /* Open access to the framebuffer */ | |
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398 if ( ! SDL_NAME(XDGAOpenFramebuffer)(DGA_Display, DGA_Screen) ) { |
| 0 | 399 SDL_SetError("Unable to map the video memory"); |
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400 XCloseDisplay(DGA_Display); |
| 0 | 401 return(-1); |
| 402 } | |
| 403 | |
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404 /* Save DPMS and screensaver settings */ |
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405 X11_SaveScreenSaver(DGA_Display, &screensaver_timeout, &dpms_enabled); |
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406 X11_DisableScreenSaver(DGA_Display); |
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407 |
| 0 | 408 /* Query for the list of available video modes */ |
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409 modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); |
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410 SDL_qsort(modes, num_modes, sizeof *modes, cmpmodes); |
| 0 | 411 for ( i=0; i<num_modes; ++i ) { |
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412 if ( ((modes[i].visualClass == PseudoColor) || |
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413 (modes[i].visualClass == DirectColor) || |
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414 (modes[i].visualClass == TrueColor)) && |
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415 !(modes[i].flags & (XDGAInterlaced|XDGADoublescan)) ) { |
| 0 | 416 #ifdef DGA_DEBUG |
|
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417 PrintMode(&modes[i]); |
| 0 | 418 #endif |
| 419 DGA_AddMode(this, modes[i].bitsPerPixel, | |
| 420 modes[i].viewportWidth, | |
| 421 modes[i].viewportHeight); | |
| 422 } | |
| 423 } | |
| 424 UpdateHWInfo(this, modes); | |
|
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425 XFree(modes); |
| 0 | 426 |
| 427 /* Create the hardware surface lock mutex */ | |
| 428 hw_lock = SDL_CreateMutex(); | |
| 429 if ( hw_lock == NULL ) { | |
| 430 SDL_SetError("Unable to create lock mutex"); | |
| 431 DGA_VideoQuit(this); | |
| 432 return(-1); | |
| 433 } | |
| 434 | |
|
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435 #ifdef LOCK_DGA_DISPLAY |
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436 /* Create the event lock so we're thread-safe.. :-/ */ |
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437 event_lock = SDL_CreateMutex(); |
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438 #endif /* LOCK_DGA_DISPLAY */ |
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439 |
| 0 | 440 /* We're done! */ |
| 441 return(0); | |
| 442 } | |
| 443 | |
| 444 SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 445 { | |
| 446 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 447 } | |
| 448 | |
| 449 /* Various screen update functions available */ | |
| 450 static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 451 | |
| 452 SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, | |
| 453 int width, int height, int bpp, Uint32 flags) | |
| 454 { | |
|
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455 SDL_NAME(XDGAMode) *modes; |
| 0 | 456 int i, num_modes; |
|
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457 SDL_NAME(XDGADevice) *mode; |
| 0 | 458 int screen_len; |
| 459 Uint8 *surfaces_mem; | |
| 460 int surfaces_len; | |
| 461 | |
| 462 /* Free any previous colormap */ | |
| 463 if ( DGA_colormap ) { | |
|
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464 XFreeColormap(DGA_Display, DGA_colormap); |
| 0 | 465 DGA_colormap = 0; |
| 466 } | |
| 467 | |
| 468 /* Search for a matching video mode */ | |
|
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469 modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); |
|
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470 SDL_qsort(modes, num_modes, sizeof *modes, cmpmodes); |
| 0 | 471 for ( i=0; i<num_modes; ++i ) { |
| 472 int depth; | |
| 473 | |
| 474 depth = modes[i].depth; | |
| 475 if ( depth == 24 ) { /* Distinguish between 24 and 32 bpp */ | |
| 476 depth = modes[i].bitsPerPixel; | |
| 477 } | |
| 478 if ( (depth == bpp) && | |
| 479 (modes[i].viewportWidth == width) && | |
| 480 (modes[i].viewportHeight == height) && | |
| 481 ((modes[i].visualClass == PseudoColor) || | |
| 482 (modes[i].visualClass == DirectColor) || | |
|
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483 (modes[i].visualClass == TrueColor)) && |
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484 !(modes[i].flags & (XDGAInterlaced|XDGADoublescan)) ) { |
| 0 | 485 break; |
| 486 } | |
| 487 } | |
| 488 if ( i == num_modes ) { | |
| 489 SDL_SetError("No matching video mode found"); | |
| 490 return(NULL); | |
| 491 } | |
|
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492 #ifdef DGA_DEBUG |
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493 PrintMode(&modes[i]); |
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494 #endif |
| 0 | 495 |
| 496 /* Set the video mode */ | |
|
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497 mode = SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, modes[i].num); |
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498 XFree(modes); |
| 0 | 499 if ( mode == NULL ) { |
| 500 SDL_SetError("Unable to switch to requested mode"); | |
| 501 return(NULL); | |
| 502 } | |
|
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503 DGA_visualClass = mode->mode.visualClass; |
| 0 | 504 memory_base = (Uint8 *)mode->data; |
| 505 memory_pitch = mode->mode.bytesPerScanline; | |
| 506 | |
| 507 /* Set up the new mode framebuffer */ | |
| 508 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 509 current->w = mode->mode.viewportWidth; | |
| 510 current->h = mode->mode.viewportHeight; | |
| 511 current->pitch = memory_pitch; | |
| 512 current->pixels = memory_base; | |
| 513 if ( ! SDL_ReallocFormat(current, mode->mode.bitsPerPixel, | |
| 514 mode->mode.redMask, | |
| 515 mode->mode.greenMask, | |
| 516 mode->mode.blueMask, 0) ) { | |
| 517 return(NULL); | |
| 518 } | |
| 519 screen_len = current->h*current->pitch; | |
| 520 | |
| 521 /* Create a colormap if necessary */ | |
| 522 if ( (DGA_visualClass == PseudoColor) || | |
| 523 (DGA_visualClass == DirectColor) ) { | |
|
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524 DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, |
| 0 | 525 mode, AllocAll); |
| 526 if ( DGA_visualClass == PseudoColor ) { | |
| 527 current->flags |= SDL_HWPALETTE; | |
| 528 } else { | |
| 529 /* Initialize the colormap to the identity mapping */ | |
| 530 SDL_GetGammaRamp(0, 0, 0); | |
| 531 this->screen = current; | |
| 532 DGA_SetGammaRamp(this, this->gamma); | |
| 533 this->screen = NULL; | |
| 534 } | |
| 535 } else { | |
|
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536 DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, |
| 0 | 537 mode, AllocNone); |
| 538 } | |
|
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539 SDL_NAME(XDGAInstallColormap)(DGA_Display, DGA_Screen, DGA_colormap); |
| 0 | 540 |
| 541 /* Update the hardware capabilities */ | |
| 542 UpdateHWInfo(this, &mode->mode); | |
| 543 | |
| 544 /* Set up the information for hardware surfaces */ | |
| 545 surfaces_mem = (Uint8 *)current->pixels + screen_len; | |
| 546 surfaces_len = (mode->mode.imageHeight*current->pitch - screen_len); | |
| 547 | |
| 548 /* Update for double-buffering, if we can */ | |
|
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549 SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, 0, 0, XDGAFlipRetrace); |
| 0 | 550 if ( flags & SDL_DOUBLEBUF ) { |
| 551 if ( mode->mode.imageHeight >= (current->h*2) ) { | |
| 552 current->flags |= SDL_DOUBLEBUF; | |
| 553 flip_page = 0; | |
| 554 flip_yoffset[0] = 0; | |
| 555 flip_yoffset[1] = current->h; | |
| 556 flip_address[0] = memory_base; | |
| 557 flip_address[1] = memory_base+screen_len; | |
| 558 surfaces_mem += screen_len; | |
| 559 surfaces_len -= screen_len; | |
| 560 } | |
| 561 } | |
| 562 | |
| 563 /* Allocate memory tracking for hardware surfaces */ | |
| 564 DGA_FreeHWSurfaces(this); | |
| 565 if ( surfaces_len < 0 ) { | |
| 566 surfaces_len = 0; | |
| 567 } | |
|
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568 DGA_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
| 0 | 569 |
|
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570 /* Expose the back buffer as surface memory */ |
|
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571 if ( current->flags & SDL_DOUBLEBUF ) { |
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572 this->screen = current; |
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573 DGA_FlipHWSurface(this, current); |
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574 this->screen = NULL; |
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575 } |
|
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576 |
| 0 | 577 /* Set the update rectangle function */ |
| 578 this->UpdateRects = DGA_DirectUpdate; | |
| 579 | |
| 580 /* Enable mouse and keyboard support */ | |
| 581 { long input_mask; | |
| 582 input_mask = (KeyPressMask | KeyReleaseMask); | |
| 583 input_mask |= (ButtonPressMask | ButtonReleaseMask); | |
| 584 input_mask |= PointerMotionMask; | |
|
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585 SDL_NAME(XDGASelectInput)(DGA_Display, DGA_Screen, input_mask); |
| 0 | 586 } |
| 587 | |
| 588 /* We're done */ | |
| 589 return(current); | |
| 590 } | |
| 591 | |
| 592 #ifdef DGA_DEBUG | |
| 593 static void DGA_DumpHWSurfaces(_THIS) | |
| 594 { | |
| 595 vidmem_bucket *bucket; | |
| 596 | |
| 597 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 598 printf("\n"); | |
| 599 printf(" Base Size\n"); | |
| 600 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 601 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 602 if ( bucket->prev ) { | |
| 603 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 604 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 605 } | |
| 606 } else { | |
| 607 if ( bucket != &surfaces ) { | |
| 608 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 609 } | |
| 610 } | |
| 611 if ( bucket->next ) { | |
| 612 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 613 printf("Warning, corrupt bucket list! (next)\n"); | |
| 614 } | |
| 615 } | |
| 616 } | |
| 617 printf("\n"); | |
| 618 } | |
| 619 #endif | |
| 620 | |
|
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621 static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size) |
| 0 | 622 { |
|
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623 vidmem_bucket *bucket; |
|
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624 |
| 0 | 625 surfaces_memtotal = size; |
| 626 surfaces_memleft = size; | |
|
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627 |
|
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|
628 if ( surfaces_memleft > 0 ) { |
|
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629 bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
|
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630 if ( bucket == NULL ) { |
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631 SDL_OutOfMemory(); |
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632 return(-1); |
|
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633 } |
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634 bucket->prev = &surfaces; |
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635 bucket->used = 0; |
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636 bucket->dirty = 0; |
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637 bucket->base = base; |
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638 bucket->size = size; |
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639 bucket->next = NULL; |
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640 } else { |
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641 bucket = NULL; |
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642 } |
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643 |
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644 surfaces.prev = NULL; |
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645 surfaces.used = 1; |
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646 surfaces.dirty = 0; |
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647 surfaces.base = screen->pixels; |
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648 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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649 surfaces.next = bucket; |
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650 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 651 return(0); |
| 652 } | |
| 653 static void DGA_FreeHWSurfaces(_THIS) | |
| 654 { | |
| 655 vidmem_bucket *bucket, *freeable; | |
| 656 | |
| 657 bucket = surfaces.next; | |
| 658 while ( bucket ) { | |
| 659 freeable = bucket; | |
| 660 bucket = bucket->next; | |
|
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661 SDL_free(freeable); |
| 0 | 662 } |
| 663 surfaces.next = NULL; | |
| 664 } | |
| 665 | |
|
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666 static __inline__ void DGA_AddBusySurface(SDL_Surface *surface) |
|
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667 { |
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668 ((vidmem_bucket *)surface->hwdata)->dirty = 1; |
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669 } |
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670 |
|
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671 static __inline__ int DGA_IsSurfaceBusy(SDL_Surface *surface) |
|
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672 { |
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673 return ((vidmem_bucket *)surface->hwdata)->dirty; |
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674 } |
|
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675 |
|
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676 static __inline__ void DGA_WaitBusySurfaces(_THIS) |
|
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677 { |
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678 vidmem_bucket *bucket; |
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679 |
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680 /* Wait for graphic operations to complete */ |
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681 SDL_NAME(XDGASync)(DGA_Display, DGA_Screen); |
|
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682 |
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683 /* Clear all surface dirty bits */ |
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684 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
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685 bucket->dirty = 0; |
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686 } |
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687 } |
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688 |
| 0 | 689 static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface) |
| 690 { | |
| 691 vidmem_bucket *bucket; | |
| 692 int size; | |
| 693 int extra; | |
|
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694 int retval = 0; |
| 0 | 695 |
| 696 /* Temporarily, we only allow surfaces the same width as display. | |
| 697 Some blitters require the pitch between two hardware surfaces | |
| 698 to be the same. Others have interesting alignment restrictions. | |
| 699 */ | |
| 700 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 701 SDL_SetError("Surface requested wider than screen"); | |
| 702 return(-1); | |
| 703 } | |
| 704 surface->pitch = SDL_VideoSurface->pitch; | |
| 705 size = surface->h * surface->pitch; | |
| 706 #ifdef DGA_DEBUG | |
| 707 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 708 #endif | |
|
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709 LOCK_DISPLAY(); |
| 0 | 710 |
| 711 /* Quick check for available mem */ | |
| 712 if ( size > surfaces_memleft ) { | |
| 713 SDL_SetError("Not enough video memory"); | |
|
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714 retval = -1; |
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715 goto done; |
| 0 | 716 } |
| 717 | |
| 718 /* Search for an empty bucket big enough */ | |
| 719 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 720 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 721 break; | |
| 722 } | |
| 723 } | |
| 724 if ( bucket == NULL ) { | |
| 725 SDL_SetError("Video memory too fragmented"); | |
|
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726 retval = -1; |
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727 goto done; |
| 0 | 728 } |
| 729 | |
| 730 /* Create a new bucket for left-over memory */ | |
| 731 extra = (bucket->size - size); | |
| 732 if ( extra ) { | |
| 733 vidmem_bucket *newbucket; | |
| 734 | |
| 735 #ifdef DGA_DEBUG | |
| 736 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 737 #endif | |
|
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738 newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 0 | 739 if ( newbucket == NULL ) { |
| 740 SDL_OutOfMemory(); | |
|
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741 retval = -1; |
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|
742 goto done; |
| 0 | 743 } |
| 744 newbucket->prev = bucket; | |
| 745 newbucket->used = 0; | |
| 746 newbucket->base = bucket->base+size; | |
| 747 newbucket->size = extra; | |
| 748 newbucket->next = bucket->next; | |
| 749 if ( bucket->next ) { | |
| 750 bucket->next->prev = newbucket; | |
| 751 } | |
| 752 bucket->next = newbucket; | |
| 753 } | |
| 754 | |
| 755 /* Set the current bucket values and return it! */ | |
| 756 bucket->used = 1; | |
| 757 bucket->size = size; | |
|
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758 bucket->dirty = 0; |
| 0 | 759 #ifdef DGA_DEBUG |
| 760 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 761 #endif | |
| 762 surfaces_memleft -= size; | |
| 763 surface->flags |= SDL_HWSURFACE; | |
| 764 surface->pixels = bucket->base; | |
|
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765 surface->hwdata = (struct private_hwdata *)bucket; |
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766 done: |
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767 UNLOCK_DISPLAY(); |
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768 return(retval); |
| 0 | 769 } |
| 770 static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 771 { | |
| 772 vidmem_bucket *bucket, *freeable; | |
| 773 | |
| 1786 | 774 /* Wait for any pending operations involving this surface */ |
| 775 if ( DGA_IsSurfaceBusy(surface) ) { | |
| 776 LOCK_DISPLAY(); | |
| 777 DGA_WaitBusySurfaces(this); | |
| 778 UNLOCK_DISPLAY(); | |
| 779 } | |
| 780 | |
| 0 | 781 /* Look for the bucket in the current list */ |
|
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782 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
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783 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
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784 break; |
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785 } |
| 0 | 786 } |
|
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787 if ( bucket && bucket->used ) { |
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788 /* Add the memory back to the total */ |
| 0 | 789 #ifdef DGA_DEBUG |
| 790 printf("Freeing bucket of %d bytes\n", bucket->size); | |
| 791 #endif | |
|
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792 surfaces_memleft += bucket->size; |
| 0 | 793 |
|
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794 /* Can we merge the space with surrounding buckets? */ |
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795 bucket->used = 0; |
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796 if ( bucket->next && ! bucket->next->used ) { |
| 0 | 797 #ifdef DGA_DEBUG |
| 798 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); | |
| 799 #endif | |
|
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800 freeable = bucket->next; |
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801 bucket->size += bucket->next->size; |
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802 bucket->next = bucket->next->next; |
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803 if ( bucket->next ) { |
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804 bucket->next->prev = bucket; |
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805 } |
|
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806 SDL_free(freeable); |
| 0 | 807 } |
|
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808 if ( bucket->prev && ! bucket->prev->used ) { |
| 0 | 809 #ifdef DGA_DEBUG |
| 810 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); | |
| 811 #endif | |
|
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|
812 freeable = bucket; |
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813 bucket->prev->size += bucket->size; |
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814 bucket->prev->next = bucket->next; |
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815 if ( bucket->next ) { |
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816 bucket->next->prev = bucket->prev; |
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817 } |
|
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|
818 SDL_free(freeable); |
| 0 | 819 } |
| 820 } | |
| 821 surface->pixels = NULL; | |
|
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822 surface->hwdata = NULL; |
| 0 | 823 } |
| 824 | |
|
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825 static __inline__ void DGA_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y) |
| 0 | 826 { |
| 827 *x = (long)((Uint8 *)dst->pixels - memory_base)%memory_pitch; | |
| 828 *y = (long)((Uint8 *)dst->pixels - memory_base)/memory_pitch; | |
| 829 } | |
| 830 | |
| 831 static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 832 { | |
| 833 int x, y; | |
| 834 unsigned int w, h; | |
| 835 | |
| 836 /* Don't fill the visible part of the screen, wait until flipped */ | |
|
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837 LOCK_DISPLAY(); |
| 0 | 838 if ( was_flipped && (dst == this->screen) ) { |
|
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839 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 840 /* Keep waiting for the hardware ... */ ; |
| 841 was_flipped = 0; | |
| 842 } | |
|
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843 DGA_dst_to_xy(this, dst, &x, &y); |
| 0 | 844 x += rect->x; |
| 845 y += rect->y; | |
| 846 w = rect->w; | |
| 847 h = rect->h; | |
| 848 #if 0 | |
| 849 printf("Hardware accelerated rectangle fill: %dx%d at %d,%d\n", w, h, x, y); | |
| 850 #endif | |
|
292
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851 SDL_NAME(XDGAFillRectangle)(DGA_Display, DGA_Screen, x, y, w, h, color); |
|
540
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|
852 if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { |
|
1575
3ba88cb7eb1b
Updated dynamic X11 code. See details in Bugzilla #170.
Ryan C. Gordon <icculus@icculus.org>
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changeset
|
853 XFlush(DGA_Display); |
|
540
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854 } |
|
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855 DGA_AddBusySurface(dst); |
|
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|
856 UNLOCK_DISPLAY(); |
| 0 | 857 return(0); |
| 858 } | |
| 859 | |
| 860 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 861 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 862 { | |
| 863 SDL_VideoDevice *this; | |
| 864 int srcx, srcy; | |
| 865 int dstx, dsty; | |
| 866 unsigned int w, h; | |
| 867 | |
| 868 this = current_video; | |
| 869 /* Don't blit to the visible part of the screen, wait until flipped */ | |
|
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|
870 LOCK_DISPLAY(); |
| 0 | 871 if ( was_flipped && (dst == this->screen) ) { |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
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|
872 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 873 /* Keep waiting for the hardware ... */ ; |
| 874 was_flipped = 0; | |
| 875 } | |
|
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876 DGA_dst_to_xy(this, src, &srcx, &srcy); |
| 0 | 877 srcx += srcrect->x; |
| 878 srcy += srcrect->y; | |
|
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879 DGA_dst_to_xy(this, dst, &dstx, &dsty); |
| 0 | 880 dstx += dstrect->x; |
| 881 dsty += dstrect->y; | |
| 882 w = srcrect->w; | |
| 883 h = srcrect->h; | |
| 884 #if 0 | |
| 885 printf("Blitting %dx%d from %d,%d to %d,%d\n", w, h, srcx, srcy, dstx, dsty); | |
| 886 #endif | |
| 887 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
|
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888 SDL_NAME(XDGACopyTransparentArea)(DGA_Display, DGA_Screen, |
| 0 | 889 srcx, srcy, w, h, dstx, dsty, src->format->colorkey); |
| 890 } else { | |
|
292
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891 SDL_NAME(XDGACopyArea)(DGA_Display, DGA_Screen, |
| 0 | 892 srcx, srcy, w, h, dstx, dsty); |
| 893 } | |
|
540
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Greatly improved X11 DGA video speed (thanks Cezary!)
Sam Lantinga <slouken@libsdl.org>
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diff
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|
894 if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { |
|
1575
3ba88cb7eb1b
Updated dynamic X11 code. See details in Bugzilla #170.
Ryan C. Gordon <icculus@icculus.org>
parents:
1545
diff
changeset
|
895 XFlush(DGA_Display); |
|
540
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Greatly improved X11 DGA video speed (thanks Cezary!)
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|
896 } |
|
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897 DGA_AddBusySurface(src); |
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898 DGA_AddBusySurface(dst); |
|
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|
899 UNLOCK_DISPLAY(); |
| 0 | 900 return(0); |
| 901 } | |
| 902 | |
| 903 static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
| 904 { | |
| 905 int accelerated; | |
| 906 | |
| 907 /* Set initial acceleration on */ | |
| 908 src->flags |= SDL_HWACCEL; | |
| 909 | |
| 910 /* Set the surface attributes */ | |
| 911 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 912 if ( ! this->info.blit_hw_A ) { | |
| 913 src->flags &= ~SDL_HWACCEL; | |
| 914 } | |
| 915 } | |
| 916 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 917 if ( ! this->info.blit_hw_CC ) { | |
| 918 src->flags &= ~SDL_HWACCEL; | |
| 919 } | |
| 920 } | |
| 921 | |
| 922 /* Check to see if final surface blit is accelerated */ | |
| 923 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 924 if ( accelerated ) { | |
| 925 src->map->hw_blit = HWAccelBlit; | |
| 926 } | |
| 927 return(accelerated); | |
| 928 } | |
| 929 | |
|
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930 static __inline__ void DGA_WaitFlip(_THIS) |
| 0 | 931 { |
| 932 if ( was_flipped ) { | |
|
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933 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 934 /* Keep waiting for the hardware ... */ ; |
| 935 was_flipped = 0; | |
| 936 } | |
| 937 } | |
| 938 | |
| 939 static int DGA_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 940 { | |
|
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941 if ( surface == this->screen ) { |
| 0 | 942 SDL_mutexP(hw_lock); |
|
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943 LOCK_DISPLAY(); |
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944 if ( DGA_IsSurfaceBusy(surface) ) { |
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945 DGA_WaitBusySurfaces(this); |
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946 } |
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947 DGA_WaitFlip(this); |
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948 UNLOCK_DISPLAY(); |
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949 } else { |
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950 if ( DGA_IsSurfaceBusy(surface) ) { |
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951 LOCK_DISPLAY(); |
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952 DGA_WaitBusySurfaces(this); |
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953 UNLOCK_DISPLAY(); |
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954 } |
| 0 | 955 } |
| 956 return(0); | |
| 957 } | |
| 958 static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 959 { | |
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960 if ( surface == this->screen ) { |
| 0 | 961 SDL_mutexV(hw_lock); |
| 962 } | |
| 963 } | |
| 964 | |
| 965 static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 966 { | |
| 967 /* Wait for vertical retrace and then flip display */ | |
|
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968 LOCK_DISPLAY(); |
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969 if ( DGA_IsSurfaceBusy(this->screen) ) { |
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970 DGA_WaitBusySurfaces(this); |
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971 } |
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972 DGA_WaitFlip(this); |
|
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973 SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, |
| 0 | 974 0, flip_yoffset[flip_page], XDGAFlipRetrace); |
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975 XFlush(DGA_Display); |
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976 UNLOCK_DISPLAY(); |
| 0 | 977 was_flipped = 1; |
| 978 flip_page = !flip_page; | |
| 979 | |
| 980 surface->pixels = flip_address[flip_page]; | |
| 981 return(0); | |
| 982 } | |
| 983 | |
| 984 static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 985 { | |
| 986 /* The application is already updating the visible video memory */ | |
| 987 return; | |
| 988 } | |
| 989 | |
| 990 static int DGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 991 { | |
| 992 int i; | |
| 993 XColor *xcmap; | |
| 994 | |
| 995 /* This happens on initialization */ | |
| 996 if ( ! DGA_colormap ) { | |
| 997 return(0); | |
| 998 } | |
|
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999 xcmap = SDL_stack_alloc(XColor, ncolors); |
| 0 | 1000 for ( i=0; i<ncolors; ++i ) { |
| 1001 xcmap[i].pixel = firstcolor + i; | |
| 1002 xcmap[i].red = (colors[i].r<<8)|colors[i].r; | |
| 1003 xcmap[i].green = (colors[i].g<<8)|colors[i].g; | |
| 1004 xcmap[i].blue = (colors[i].b<<8)|colors[i].b; | |
| 1005 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 1006 } | |
|
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1007 LOCK_DISPLAY(); |
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1008 XStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); |
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1009 XSync(DGA_Display, False); |
|
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1010 UNLOCK_DISPLAY(); |
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1011 SDL_stack_free(xcmap); |
| 0 | 1012 |
| 1013 /* That was easy. :) */ | |
| 1014 return(1); | |
| 1015 } | |
| 1016 | |
| 1017 int DGA_SetGammaRamp(_THIS, Uint16 *ramp) | |
| 1018 { | |
| 1019 int i, ncolors; | |
| 1020 XColor xcmap[256]; | |
| 1021 | |
| 1022 /* See if actually setting the gamma is supported */ | |
| 1023 if ( DGA_visualClass != DirectColor ) { | |
| 1024 SDL_SetError("Gamma correction not supported on this visual"); | |
| 1025 return(-1); | |
| 1026 } | |
| 1027 | |
| 1028 /* Calculate the appropriate palette for the given gamma ramp */ | |
| 1029 if ( this->screen->format->BitsPerPixel <= 16 ) { | |
| 1030 ncolors = 64; /* Is this right? */ | |
| 1031 } else { | |
| 1032 ncolors = 256; | |
| 1033 } | |
| 1034 for ( i=0; i<ncolors; ++i ) { | |
| 1035 Uint8 c = (256 * i / ncolors); | |
| 1036 xcmap[i].pixel = SDL_MapRGB(this->screen->format, c, c, c); | |
| 1037 xcmap[i].red = ramp[0*256+c]; | |
| 1038 xcmap[i].green = ramp[1*256+c]; | |
| 1039 xcmap[i].blue = ramp[2*256+c]; | |
| 1040 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 1041 } | |
|
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1042 LOCK_DISPLAY(); |
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1043 XStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); |
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1044 XSync(DGA_Display, False); |
|
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1045 UNLOCK_DISPLAY(); |
| 0 | 1046 return(0); |
| 1047 } | |
| 1048 | |
| 1049 void DGA_VideoQuit(_THIS) | |
| 1050 { | |
| 1051 int i, j; | |
| 1052 | |
| 1053 if ( DGA_Display ) { | |
| 1054 /* Free colormap, if necessary */ | |
| 1055 if ( DGA_colormap ) { | |
|
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1056 XFreeColormap(DGA_Display, DGA_colormap); |
| 0 | 1057 DGA_colormap = 0; |
| 1058 } | |
| 1059 | |
| 1060 /* Unmap memory and reset video mode */ | |
|
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1061 SDL_NAME(XDGACloseFramebuffer)(DGA_Display, DGA_Screen); |
| 0 | 1062 if ( this->screen ) { |
| 1063 /* Tell SDL not to free the pixels */ | |
| 1786 | 1064 DGA_FreeHWSurface(this, this->screen); |
| 0 | 1065 } |
|
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1066 SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, 0); |
| 0 | 1067 |
| 1068 /* Clear the lock mutex */ | |
| 1069 if ( hw_lock != NULL ) { | |
| 1070 SDL_DestroyMutex(hw_lock); | |
| 1071 hw_lock = NULL; | |
| 1072 } | |
|
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1073 #ifdef LOCK_DGA_DISPLAY |
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1074 if ( event_lock != NULL ) { |
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1075 SDL_DestroyMutex(event_lock); |
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1076 event_lock = NULL; |
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1077 } |
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1078 #endif /* LOCK_DGA_DISPLAY */ |
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1079 |
| 0 | 1080 /* Clean up defined video modes */ |
| 1081 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1082 if ( SDL_modelist[i] != NULL ) { | |
| 1083 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
|
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1084 SDL_free(SDL_modelist[i][j]); |
| 0 | 1085 } |
|
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1086 SDL_free(SDL_modelist[i]); |
| 0 | 1087 SDL_modelist[i] = NULL; |
| 1088 } | |
| 1089 } | |
| 1090 | |
| 1091 /* Clean up the memory bucket list */ | |
| 1092 DGA_FreeHWSurfaces(this); | |
| 1093 | |
|
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1094 /* Restore DPMS and screensaver settings */ |
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1095 X11_RestoreScreenSaver(DGA_Display, screensaver_timeout, dpms_enabled); |
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1096 |
| 0 | 1097 /* Close up the display */ |
|
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1098 XCloseDisplay(DGA_Display); |
| 0 | 1099 } |
| 1100 } |