Mercurial > sdl-ios-xcode
annotate src/video/dga/SDL_dgavideo.c @ 1267:fdc7ef6ecab4
Correctly manage mouse relative motion
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Wed, 25 Jan 2006 20:36:21 +0000 |
| parents | 045f186426e1 |
| children | 0c105755b110 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
769
b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
559
diff
changeset
|
3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
202
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* DGA 2.0 based SDL video driver implementation. | |
| 29 */ | |
| 30 | |
| 31 #include <stdlib.h> | |
| 32 #include <string.h> | |
| 33 #include <X11/Xlib.h> | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
34 #include <XFree86/extensions/xf86dga.h> |
| 0 | 35 |
| 36 #ifdef HAVE_ALLOCA_H | |
| 37 #include <alloca.h> | |
| 38 #endif | |
| 39 | |
| 40 #include "SDL.h" | |
| 41 #include "SDL_error.h" | |
| 42 #include "SDL_video.h" | |
| 43 #include "SDL_mouse.h" | |
| 44 #include "SDL_sysvideo.h" | |
| 45 #include "SDL_pixels_c.h" | |
| 46 #include "SDL_events_c.h" | |
| 47 #include "SDL_dgavideo.h" | |
| 48 #include "SDL_dgamouse_c.h" | |
| 49 #include "SDL_dgaevents_c.h" | |
| 50 | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
51 /* get function pointers... */ |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
52 #include "../x11/SDL_x11dyn.h" |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
53 |
| 0 | 54 /* Initialization/Query functions */ |
| 55 static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 56 static SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 57 static SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 58 static int DGA_SetColors(_THIS, int firstcolor, int ncolors, | |
| 59 SDL_Color *colors); | |
| 60 static int DGA_SetGammaRamp(_THIS, Uint16 *ramp); | |
| 61 static void DGA_VideoQuit(_THIS); | |
| 62 | |
| 63 /* Hardware surface functions */ | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
64 static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size); |
| 0 | 65 static void DGA_FreeHWSurfaces(_THIS); |
| 66 static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 67 static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 68 static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst); | |
| 69 static int DGA_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 70 static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 71 static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 72 static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface); | |
| 73 | |
| 74 /* DGA driver bootstrap functions */ | |
| 75 | |
| 76 static int DGA_Available(void) | |
| 77 { | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
78 const char *display = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
79 Display *dpy = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
80 int available = 0; |
| 0 | 81 |
| 82 /* The driver is available is available if the display is local | |
| 83 and the DGA 2.0+ extension is available, and we can map mem. | |
| 84 */ | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
85 if ( SDL_X11_LoadSymbols() ) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
86 if ( (strncmp(pXDisplayName(display), ":", 1) == 0) || |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
87 (strncmp(pXDisplayName(display), "unix:", 5) == 0) ) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
88 dpy = pXOpenDisplay(display); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
89 if ( dpy ) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
90 int events, errors, major, minor; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
91 |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
92 if ( SDL_NAME(XDGAQueryExtension)(dpy, &events, &errors) && |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
93 SDL_NAME(XDGAQueryVersion)(dpy, &major, &minor) ) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
94 int screen; |
| 0 | 95 |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
96 screen = DefaultScreen(dpy); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
97 if ( (major >= 2) && |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
98 SDL_NAME(XDGAOpenFramebuffer)(dpy, screen) ) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
99 available = 1; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
100 SDL_NAME(XDGACloseFramebuffer)(dpy, screen); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
101 } |
| 0 | 102 } |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
103 pXCloseDisplay(dpy); |
| 0 | 104 } |
| 105 } | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
106 SDL_X11_UnloadSymbols(); |
| 0 | 107 } |
| 108 return(available); | |
| 109 } | |
| 110 | |
| 111 static void DGA_DeleteDevice(SDL_VideoDevice *device) | |
| 112 { | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
113 if (device != NULL) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
114 free(device->hidden); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
115 free(device); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
116 SDL_X11_UnloadSymbols(); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
117 } |
| 0 | 118 } |
| 119 | |
| 120 static SDL_VideoDevice *DGA_CreateDevice(int devindex) | |
| 121 { | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
122 SDL_VideoDevice *device = NULL; |
| 0 | 123 |
| 124 /* Initialize all variables that we clean on shutdown */ | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
125 if (SDL_X11_LoadSymbols()) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
126 device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice)); |
| 0 | 127 if ( device ) { |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
128 memset(device, 0, (sizeof *device)); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
129 device->hidden = (struct SDL_PrivateVideoData *) |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
130 malloc((sizeof *device->hidden)); |
| 0 | 131 } |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
132 if ( (device == NULL) || (device->hidden == NULL) ) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
133 SDL_OutOfMemory(); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
134 if ( device ) { |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
135 free(device); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
136 } |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
137 SDL_X11_UnloadSymbols(); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
138 return(0); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
139 } |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
140 memset(device->hidden, 0, (sizeof *device->hidden)); |
| 0 | 141 |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
142 /* Set the function pointers */ |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
143 device->VideoInit = DGA_VideoInit; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
144 device->ListModes = DGA_ListModes; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
145 device->SetVideoMode = DGA_SetVideoMode; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
146 device->SetColors = DGA_SetColors; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
147 device->UpdateRects = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
148 device->VideoQuit = DGA_VideoQuit; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
149 device->AllocHWSurface = DGA_AllocHWSurface; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
150 device->CheckHWBlit = DGA_CheckHWBlit; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
151 device->FillHWRect = DGA_FillHWRect; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
152 device->SetHWColorKey = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
153 device->SetHWAlpha = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
154 device->LockHWSurface = DGA_LockHWSurface; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
155 device->UnlockHWSurface = DGA_UnlockHWSurface; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
156 device->FlipHWSurface = DGA_FlipHWSurface; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
157 device->FreeHWSurface = DGA_FreeHWSurface; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
158 device->SetGammaRamp = DGA_SetGammaRamp; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
159 device->GetGammaRamp = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
160 device->SetCaption = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
161 device->SetIcon = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
162 device->IconifyWindow = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
163 device->GrabInput = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
164 device->GetWMInfo = NULL; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
165 device->InitOSKeymap = DGA_InitOSKeymap; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
166 device->PumpEvents = DGA_PumpEvents; |
| 0 | 167 |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
168 device->free = DGA_DeleteDevice; |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
169 } |
| 0 | 170 |
| 171 return device; | |
| 172 } | |
| 173 | |
| 174 VideoBootStrap DGA_bootstrap = { | |
| 175 "dga", "XFree86 DGA 2.0", | |
| 176 DGA_Available, DGA_CreateDevice | |
| 177 }; | |
| 178 | |
| 179 static int DGA_AddMode(_THIS, int bpp, int w, int h) | |
| 180 { | |
| 181 SDL_Rect *mode; | |
| 182 int i, index; | |
| 183 int next_mode; | |
| 184 | |
| 185 /* Check to see if we already have this mode */ | |
| 186 if ( bpp < 8 ) { /* Not supported */ | |
| 187 return(0); | |
| 188 } | |
| 189 index = ((bpp+7)/8)-1; | |
| 190 for ( i=0; i<SDL_nummodes[index]; ++i ) { | |
| 191 mode = SDL_modelist[index][i]; | |
| 192 if ( (mode->w == w) && (mode->h == h) ) { | |
| 193 return(0); | |
| 194 } | |
| 195 } | |
| 196 | |
| 197 /* Set up the new video mode rectangle */ | |
| 198 mode = (SDL_Rect *)malloc(sizeof *mode); | |
| 199 if ( mode == NULL ) { | |
| 200 SDL_OutOfMemory(); | |
| 201 return(-1); | |
| 202 } | |
| 203 mode->x = 0; | |
| 204 mode->y = 0; | |
| 205 mode->w = w; | |
| 206 mode->h = h; | |
| 207 | |
| 208 /* Allocate the new list of modes, and fill in the new mode */ | |
| 209 next_mode = SDL_nummodes[index]; | |
| 210 SDL_modelist[index] = (SDL_Rect **) | |
| 211 realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); | |
| 212 if ( SDL_modelist[index] == NULL ) { | |
| 213 SDL_OutOfMemory(); | |
| 214 SDL_nummodes[index] = 0; | |
| 215 free(mode); | |
| 216 return(-1); | |
| 217 } | |
| 218 SDL_modelist[index][next_mode] = mode; | |
| 219 SDL_modelist[index][next_mode+1] = NULL; | |
| 220 SDL_nummodes[index]++; | |
| 221 | |
| 222 return(0); | |
| 223 } | |
| 224 | |
| 225 /* This whole function is a hack. :) */ | |
| 226 static Uint32 get_video_size(_THIS) | |
| 227 { | |
| 228 /* This is a non-exported function from libXxf86dga.a */ | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
229 extern unsigned char *SDL_NAME(XDGAGetMappedMemory)(int screen); |
| 0 | 230 FILE *proc; |
| 231 unsigned long mem; | |
| 232 unsigned start, stop; | |
| 233 char line[BUFSIZ]; | |
| 234 Uint32 size; | |
| 235 | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
236 mem = (unsigned long)SDL_NAME(XDGAGetMappedMemory)(DGA_Screen); |
| 0 | 237 size = 0; |
| 238 proc = fopen("/proc/self/maps", "r"); | |
| 239 if ( proc ) { | |
| 240 while ( fgets(line, sizeof(line)-1, proc) ) { | |
| 241 sscanf(line, "%x-%x", &start, &stop); | |
| 242 if ( start == mem ) { | |
| 243 size = (Uint32)((stop-start)/1024); | |
| 244 break; | |
| 245 } | |
| 246 } | |
| 247 fclose(proc); | |
| 248 } | |
| 249 return(size); | |
| 250 } | |
| 251 | |
| 252 #ifdef DGA_DEBUG | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
253 static void PrintMode(SDL_NAME(XDGAMode) *mode) |
| 0 | 254 { |
| 255 printf("Mode: %s (%dx%d) at %d bpp (%f refresh, %d pitch) num: %d\n", | |
| 256 mode->name, | |
| 257 mode->viewportWidth, mode->viewportHeight, | |
| 258 mode->depth == 24 ? mode->bitsPerPixel : mode->depth, | |
| 259 mode->verticalRefresh, mode->bytesPerScanline, mode->num); | |
| 260 printf("\tRGB: 0x%8.8x 0x%8.8x 0x%8.8x (%d - %s)\n", | |
| 261 mode->redMask, mode->greenMask, mode->blueMask, | |
| 262 mode->visualClass, | |
| 263 mode->visualClass == TrueColor ? "truecolor" : | |
| 264 mode->visualClass == DirectColor ? "directcolor" : | |
| 265 mode->visualClass == PseudoColor ? "pseudocolor" : "unknown"); | |
| 266 printf("\tFlags: "); | |
| 267 if ( mode->flags & XDGAConcurrentAccess ) | |
| 268 printf(" XDGAConcurrentAccess"); | |
| 269 if ( mode->flags & XDGASolidFillRect ) | |
| 270 printf(" XDGASolidFillRect"); | |
| 271 if ( mode->flags & XDGABlitRect ) | |
| 272 printf(" XDGABlitRect"); | |
| 273 if ( mode->flags & XDGABlitTransRect ) | |
| 274 printf(" XDGABlitTransRect"); | |
| 275 if ( mode->flags & XDGAPixmap ) | |
| 276 printf(" XDGAPixmap"); | |
| 277 if ( mode->flags & XDGAInterlaced ) | |
| 278 printf(" XDGAInterlaced"); | |
| 279 if ( mode->flags & XDGADoublescan ) | |
| 280 printf(" XDGADoublescan"); | |
| 281 if ( mode->viewportFlags & XDGAFlipRetrace ) | |
| 282 printf(" XDGAFlipRetrace"); | |
| 283 if ( mode->viewportFlags & XDGAFlipImmediate ) | |
| 284 printf(" XDGAFlipImmediate"); | |
| 285 printf("\n"); | |
| 286 } | |
| 287 #endif /* DGA_DEBUG */ | |
| 288 | |
| 289 static int cmpmodes(const void *va, const void *vb) | |
| 290 { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
291 const SDL_NAME(XDGAMode) *a = (const SDL_NAME(XDGAMode) *)va; |
|
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
292 const SDL_NAME(XDGAMode) *b = (const SDL_NAME(XDGAMode) *)vb; |
| 0 | 293 |
| 294 /* Prefer DirectColor visuals for otherwise equal modes */ | |
| 295 if ( (a->viewportWidth == b->viewportWidth) && | |
| 296 (b->viewportHeight == a->viewportHeight) ) { | |
|
966
f72cc0c7305f
Video modes are sorted width first, then height
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
297 if ( a->visualClass == DirectColor ) |
|
f72cc0c7305f
Video modes are sorted width first, then height
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
298 return -1; |
|
f72cc0c7305f
Video modes are sorted width first, then height
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
299 if ( b->visualClass == DirectColor ) |
|
f72cc0c7305f
Video modes are sorted width first, then height
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
300 return 1; |
|
f72cc0c7305f
Video modes are sorted width first, then height
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
301 return 0; |
|
f72cc0c7305f
Video modes are sorted width first, then height
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
302 } else if ( a->viewportWidth == b->viewportWidth ) { |
|
f72cc0c7305f
Video modes are sorted width first, then height
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
303 return b->viewportHeight - a->viewportHeight; |
| 0 | 304 } else { |
|
966
f72cc0c7305f
Video modes are sorted width first, then height
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
305 return b->viewportWidth - a->viewportWidth; |
| 0 | 306 } |
| 307 } | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
308 static void UpdateHWInfo(_THIS, SDL_NAME(XDGAMode) *mode) |
| 0 | 309 { |
| 310 this->info.wm_available = 0; | |
| 311 this->info.hw_available = 1; | |
| 312 if ( mode->flags & XDGABlitRect ) { | |
| 313 this->info.blit_hw = 1; | |
| 314 } else { | |
| 315 this->info.blit_hw = 0; | |
| 316 } | |
| 317 if ( mode->flags & XDGABlitTransRect ) { | |
| 318 this->info.blit_hw_CC = 1; | |
| 319 } else { | |
| 320 this->info.blit_hw_CC = 0; | |
| 321 } | |
| 322 if ( mode->flags & XDGASolidFillRect ) { | |
| 323 this->info.blit_fill = 1; | |
| 324 } else { | |
| 325 this->info.blit_fill = 0; | |
| 326 } | |
| 327 this->info.video_mem = get_video_size(this); | |
| 328 } | |
| 329 | |
| 330 static int DGA_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 331 { | |
| 332 const char *display; | |
| 333 int event_base, error_base; | |
| 334 int major_version, minor_version; | |
| 335 Visual *visual; | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
336 SDL_NAME(XDGAMode) *modes; |
| 0 | 337 int i, num_modes; |
| 338 | |
| 339 /* Open the X11 display */ | |
| 340 display = NULL; /* Get it from DISPLAY environment variable */ | |
| 341 | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
342 DGA_Display = pXOpenDisplay(display); |
| 0 | 343 if ( DGA_Display == NULL ) { |
| 344 SDL_SetError("Couldn't open X11 display"); | |
| 345 return(-1); | |
| 346 } | |
| 347 | |
| 348 /* Check for the DGA extension */ | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
349 if ( ! SDL_NAME(XDGAQueryExtension)(DGA_Display, &event_base, &error_base) || |
|
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
350 ! SDL_NAME(XDGAQueryVersion)(DGA_Display, &major_version, &minor_version) ) { |
| 0 | 351 SDL_SetError("DGA extension not available"); |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
352 pXCloseDisplay(DGA_Display); |
| 0 | 353 return(-1); |
| 354 } | |
| 355 if ( major_version < 2 ) { | |
| 356 SDL_SetError("DGA driver requires DGA 2.0 or newer"); | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
357 pXCloseDisplay(DGA_Display); |
| 0 | 358 return(-1); |
| 359 } | |
| 360 DGA_event_base = event_base; | |
| 361 | |
| 362 /* Determine the current screen depth */ | |
| 363 visual = DefaultVisual(DGA_Display, DGA_Screen); | |
| 364 { | |
| 365 XPixmapFormatValues *pix_format; | |
| 366 int i, num_formats; | |
| 367 | |
| 368 vformat->BitsPerPixel = DefaultDepth(DGA_Display, DGA_Screen); | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
369 pix_format = pXListPixmapFormats(DGA_Display, &num_formats); |
| 0 | 370 if ( pix_format == NULL ) { |
| 371 SDL_SetError("Couldn't determine screen formats"); | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
372 pXCloseDisplay(DGA_Display); |
| 0 | 373 return(-1); |
| 374 } | |
| 375 for ( i=0; i<num_formats; ++i ) { | |
| 376 if ( vformat->BitsPerPixel == pix_format[i].depth ) | |
| 377 break; | |
| 378 } | |
| 379 if ( i != num_formats ) | |
| 380 vformat->BitsPerPixel = pix_format[i].bits_per_pixel; | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
381 pXFree((char *)pix_format); |
| 0 | 382 } |
| 383 if ( vformat->BitsPerPixel > 8 ) { | |
| 384 vformat->Rmask = visual->red_mask; | |
| 385 vformat->Gmask = visual->green_mask; | |
| 386 vformat->Bmask = visual->blue_mask; | |
| 387 } | |
| 388 | |
| 389 /* Open access to the framebuffer */ | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
390 if ( ! SDL_NAME(XDGAOpenFramebuffer)(DGA_Display, DGA_Screen) ) { |
| 0 | 391 SDL_SetError("Unable to map the video memory"); |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
392 pXCloseDisplay(DGA_Display); |
| 0 | 393 return(-1); |
| 394 } | |
| 395 | |
| 396 /* Query for the list of available video modes */ | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
397 modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); |
| 0 | 398 qsort(modes, num_modes, sizeof *modes, cmpmodes); |
| 399 for ( i=0; i<num_modes; ++i ) { | |
| 400 #ifdef DGA_DEBUG | |
| 401 PrintMode(&modes[i]); | |
| 402 #endif | |
| 403 if ( (modes[i].visualClass == PseudoColor) || | |
| 404 (modes[i].visualClass == DirectColor) || | |
| 405 (modes[i].visualClass == TrueColor) ) { | |
| 406 DGA_AddMode(this, modes[i].bitsPerPixel, | |
| 407 modes[i].viewportWidth, | |
| 408 modes[i].viewportHeight); | |
| 409 } | |
| 410 } | |
| 411 UpdateHWInfo(this, modes); | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
412 pXFree(modes); |
| 0 | 413 |
| 414 /* Create the hardware surface lock mutex */ | |
| 415 hw_lock = SDL_CreateMutex(); | |
| 416 if ( hw_lock == NULL ) { | |
| 417 SDL_SetError("Unable to create lock mutex"); | |
| 418 DGA_VideoQuit(this); | |
| 419 return(-1); | |
| 420 } | |
| 421 | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
422 #ifdef LOCK_DGA_DISPLAY |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
423 /* Create the event lock so we're thread-safe.. :-/ */ |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
424 event_lock = SDL_CreateMutex(); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
425 #endif /* LOCK_DGA_DISPLAY */ |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
426 |
| 0 | 427 /* We're done! */ |
| 428 return(0); | |
| 429 } | |
| 430 | |
| 431 SDL_Rect **DGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 432 { | |
| 433 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 434 } | |
| 435 | |
| 436 /* Various screen update functions available */ | |
| 437 static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 438 | |
| 439 SDL_Surface *DGA_SetVideoMode(_THIS, SDL_Surface *current, | |
| 440 int width, int height, int bpp, Uint32 flags) | |
| 441 { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
442 SDL_NAME(XDGAMode) *modes; |
| 0 | 443 int i, num_modes; |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
444 SDL_NAME(XDGADevice) *mode; |
| 0 | 445 int screen_len; |
| 446 Uint8 *surfaces_mem; | |
| 447 int surfaces_len; | |
| 448 | |
| 449 /* Free any previous colormap */ | |
| 450 if ( DGA_colormap ) { | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
451 pXFreeColormap(DGA_Display, DGA_colormap); |
| 0 | 452 DGA_colormap = 0; |
| 453 } | |
| 454 | |
| 455 /* Search for a matching video mode */ | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
456 modes = SDL_NAME(XDGAQueryModes)(DGA_Display, DGA_Screen, &num_modes); |
| 0 | 457 qsort(modes, num_modes, sizeof *modes, cmpmodes); |
| 458 for ( i=0; i<num_modes; ++i ) { | |
| 459 int depth; | |
| 460 | |
| 461 | |
| 462 depth = modes[i].depth; | |
| 463 if ( depth == 24 ) { /* Distinguish between 24 and 32 bpp */ | |
| 464 depth = modes[i].bitsPerPixel; | |
| 465 } | |
| 466 if ( (depth == bpp) && | |
| 467 (modes[i].viewportWidth == width) && | |
| 468 (modes[i].viewportHeight == height) && | |
| 469 ((modes[i].visualClass == PseudoColor) || | |
| 470 (modes[i].visualClass == DirectColor) || | |
| 471 (modes[i].visualClass == TrueColor)) ) { | |
| 472 break; | |
| 473 } | |
| 474 } | |
| 475 if ( i == num_modes ) { | |
| 476 SDL_SetError("No matching video mode found"); | |
| 477 return(NULL); | |
| 478 } | |
| 479 | |
| 480 /* Set the video mode */ | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
481 mode = SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, modes[i].num); |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
482 pXFree(modes); |
| 0 | 483 if ( mode == NULL ) { |
| 484 SDL_SetError("Unable to switch to requested mode"); | |
| 485 return(NULL); | |
| 486 } | |
|
559
b528214c8c9a
Fixed invalid memory access in DGA video driver (thanks ldb!)
Sam Lantinga <slouken@libsdl.org>
parents:
540
diff
changeset
|
487 DGA_visualClass = mode->mode.visualClass; |
| 0 | 488 memory_base = (Uint8 *)mode->data; |
| 489 memory_pitch = mode->mode.bytesPerScanline; | |
| 490 | |
| 491 /* Set up the new mode framebuffer */ | |
| 492 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 493 current->w = mode->mode.viewportWidth; | |
| 494 current->h = mode->mode.viewportHeight; | |
| 495 current->pitch = memory_pitch; | |
| 496 current->pixels = memory_base; | |
| 497 if ( ! SDL_ReallocFormat(current, mode->mode.bitsPerPixel, | |
| 498 mode->mode.redMask, | |
| 499 mode->mode.greenMask, | |
| 500 mode->mode.blueMask, 0) ) { | |
| 501 return(NULL); | |
| 502 } | |
| 503 screen_len = current->h*current->pitch; | |
| 504 | |
| 505 /* Create a colormap if necessary */ | |
| 506 if ( (DGA_visualClass == PseudoColor) || | |
| 507 (DGA_visualClass == DirectColor) ) { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
508 DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, |
| 0 | 509 mode, AllocAll); |
| 510 if ( DGA_visualClass == PseudoColor ) { | |
| 511 current->flags |= SDL_HWPALETTE; | |
| 512 } else { | |
| 513 /* Initialize the colormap to the identity mapping */ | |
| 514 SDL_GetGammaRamp(0, 0, 0); | |
| 515 this->screen = current; | |
| 516 DGA_SetGammaRamp(this, this->gamma); | |
| 517 this->screen = NULL; | |
| 518 } | |
| 519 } else { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
520 DGA_colormap = SDL_NAME(XDGACreateColormap)(DGA_Display, DGA_Screen, |
| 0 | 521 mode, AllocNone); |
| 522 } | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
523 SDL_NAME(XDGAInstallColormap)(DGA_Display, DGA_Screen, DGA_colormap); |
| 0 | 524 |
| 525 /* Update the hardware capabilities */ | |
| 526 UpdateHWInfo(this, &mode->mode); | |
| 527 | |
| 528 /* Set up the information for hardware surfaces */ | |
| 529 surfaces_mem = (Uint8 *)current->pixels + screen_len; | |
| 530 surfaces_len = (mode->mode.imageHeight*current->pitch - screen_len); | |
| 531 | |
| 532 /* Update for double-buffering, if we can */ | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
533 SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, 0, 0, XDGAFlipRetrace); |
| 0 | 534 if ( flags & SDL_DOUBLEBUF ) { |
| 535 if ( mode->mode.imageHeight >= (current->h*2) ) { | |
| 536 current->flags |= SDL_DOUBLEBUF; | |
| 537 flip_page = 0; | |
| 538 flip_yoffset[0] = 0; | |
| 539 flip_yoffset[1] = current->h; | |
| 540 flip_address[0] = memory_base; | |
| 541 flip_address[1] = memory_base+screen_len; | |
| 542 surfaces_mem += screen_len; | |
| 543 surfaces_len -= screen_len; | |
| 544 } | |
| 545 } | |
| 546 | |
| 547 /* Allocate memory tracking for hardware surfaces */ | |
| 548 DGA_FreeHWSurfaces(this); | |
| 549 if ( surfaces_len < 0 ) { | |
| 550 surfaces_len = 0; | |
| 551 } | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
552 DGA_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
| 0 | 553 |
|
202
401f0134f4f9
Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents:
105
diff
changeset
|
554 /* Expose the back buffer as surface memory */ |
|
401f0134f4f9
Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents:
105
diff
changeset
|
555 if ( current->flags & SDL_DOUBLEBUF ) { |
|
401f0134f4f9
Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents:
105
diff
changeset
|
556 this->screen = current; |
|
401f0134f4f9
Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents:
105
diff
changeset
|
557 DGA_FlipHWSurface(this, current); |
|
401f0134f4f9
Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents:
105
diff
changeset
|
558 this->screen = NULL; |
|
401f0134f4f9
Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents:
105
diff
changeset
|
559 } |
|
401f0134f4f9
Fixed crash when using double-buffering with DGA
Sam Lantinga <slouken@libsdl.org>
parents:
105
diff
changeset
|
560 |
| 0 | 561 /* Set the update rectangle function */ |
| 562 this->UpdateRects = DGA_DirectUpdate; | |
| 563 | |
| 564 /* Enable mouse and keyboard support */ | |
| 565 { long input_mask; | |
| 566 input_mask = (KeyPressMask | KeyReleaseMask); | |
| 567 input_mask |= (ButtonPressMask | ButtonReleaseMask); | |
| 568 input_mask |= PointerMotionMask; | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
569 SDL_NAME(XDGASelectInput)(DGA_Display, DGA_Screen, input_mask); |
| 0 | 570 } |
| 571 | |
| 572 /* We're done */ | |
| 573 return(current); | |
| 574 } | |
| 575 | |
| 576 #ifdef DGA_DEBUG | |
| 577 static void DGA_DumpHWSurfaces(_THIS) | |
| 578 { | |
| 579 vidmem_bucket *bucket; | |
| 580 | |
| 581 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 582 printf("\n"); | |
| 583 printf(" Base Size\n"); | |
| 584 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 585 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 586 if ( bucket->prev ) { | |
| 587 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 588 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 589 } | |
| 590 } else { | |
| 591 if ( bucket != &surfaces ) { | |
| 592 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 593 } | |
| 594 } | |
| 595 if ( bucket->next ) { | |
| 596 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 597 printf("Warning, corrupt bucket list! (next)\n"); | |
| 598 } | |
| 599 } | |
| 600 } | |
| 601 printf("\n"); | |
| 602 } | |
| 603 #endif | |
| 604 | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
605 static int DGA_InitHWSurfaces(_THIS, SDL_Surface *screen, Uint8 *base, int size) |
| 0 | 606 { |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
607 vidmem_bucket *bucket; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
608 |
| 0 | 609 surfaces_memtotal = size; |
| 610 surfaces_memleft = size; | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
611 |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
612 if ( surfaces_memleft > 0 ) { |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
613 bucket = (vidmem_bucket *)malloc(sizeof(*bucket)); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
614 if ( bucket == NULL ) { |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
615 SDL_OutOfMemory(); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
616 return(-1); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
617 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
618 bucket->prev = &surfaces; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
619 bucket->used = 0; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
620 bucket->dirty = 0; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
621 bucket->base = base; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
622 bucket->size = size; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
623 bucket->next = NULL; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
624 } else { |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
625 bucket = NULL; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
626 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
627 |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
628 surfaces.prev = NULL; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
629 surfaces.used = 1; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
630 surfaces.dirty = 0; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
631 surfaces.base = screen->pixels; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
632 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
633 surfaces.next = bucket; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
634 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 635 return(0); |
| 636 } | |
| 637 static void DGA_FreeHWSurfaces(_THIS) | |
| 638 { | |
| 639 vidmem_bucket *bucket, *freeable; | |
| 640 | |
| 641 bucket = surfaces.next; | |
| 642 while ( bucket ) { | |
| 643 freeable = bucket; | |
| 644 bucket = bucket->next; | |
| 645 free(freeable); | |
| 646 } | |
| 647 surfaces.next = NULL; | |
| 648 } | |
| 649 | |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
650 static __inline__ void DGA_AddBusySurface(SDL_Surface *surface) |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
651 { |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
652 ((vidmem_bucket *)surface->hwdata)->dirty = 1; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
653 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
654 |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
655 static __inline__ int DGA_IsSurfaceBusy(SDL_Surface *surface) |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
656 { |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
657 return ((vidmem_bucket *)surface->hwdata)->dirty; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
658 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
659 |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
660 static __inline__ void DGA_WaitBusySurfaces(_THIS) |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
661 { |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
662 vidmem_bucket *bucket; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
663 |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
664 /* Wait for graphic operations to complete */ |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
665 SDL_NAME(XDGASync)(DGA_Display, DGA_Screen); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
666 |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
667 /* Clear all surface dirty bits */ |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
668 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
669 bucket->dirty = 0; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
670 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
671 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
672 |
| 0 | 673 static int DGA_AllocHWSurface(_THIS, SDL_Surface *surface) |
| 674 { | |
| 675 vidmem_bucket *bucket; | |
| 676 int size; | |
| 677 int extra; | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
678 int retval = 0; |
| 0 | 679 |
| 680 /* Temporarily, we only allow surfaces the same width as display. | |
| 681 Some blitters require the pitch between two hardware surfaces | |
| 682 to be the same. Others have interesting alignment restrictions. | |
| 683 */ | |
| 684 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 685 SDL_SetError("Surface requested wider than screen"); | |
| 686 return(-1); | |
| 687 } | |
| 688 surface->pitch = SDL_VideoSurface->pitch; | |
| 689 size = surface->h * surface->pitch; | |
| 690 #ifdef DGA_DEBUG | |
| 691 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 692 #endif | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
693 LOCK_DISPLAY(); |
| 0 | 694 |
| 695 /* Quick check for available mem */ | |
| 696 if ( size > surfaces_memleft ) { | |
| 697 SDL_SetError("Not enough video memory"); | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
698 retval = -1; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
699 goto done; |
| 0 | 700 } |
| 701 | |
| 702 /* Search for an empty bucket big enough */ | |
| 703 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 704 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 705 break; | |
| 706 } | |
| 707 } | |
| 708 if ( bucket == NULL ) { | |
| 709 SDL_SetError("Video memory too fragmented"); | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
710 retval = -1; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
711 goto done; |
| 0 | 712 } |
| 713 | |
| 714 /* Create a new bucket for left-over memory */ | |
| 715 extra = (bucket->size - size); | |
| 716 if ( extra ) { | |
| 717 vidmem_bucket *newbucket; | |
| 718 | |
| 719 #ifdef DGA_DEBUG | |
| 720 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 721 #endif | |
| 722 newbucket = (vidmem_bucket *)malloc(sizeof(*newbucket)); | |
| 723 if ( newbucket == NULL ) { | |
| 724 SDL_OutOfMemory(); | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
725 retval = -1; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
726 goto done; |
| 0 | 727 } |
| 728 newbucket->prev = bucket; | |
| 729 newbucket->used = 0; | |
| 730 newbucket->base = bucket->base+size; | |
| 731 newbucket->size = extra; | |
| 732 newbucket->next = bucket->next; | |
| 733 if ( bucket->next ) { | |
| 734 bucket->next->prev = newbucket; | |
| 735 } | |
| 736 bucket->next = newbucket; | |
| 737 } | |
| 738 | |
| 739 /* Set the current bucket values and return it! */ | |
| 740 bucket->used = 1; | |
| 741 bucket->size = size; | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
742 bucket->dirty = 0; |
| 0 | 743 #ifdef DGA_DEBUG |
| 744 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 745 #endif | |
| 746 surfaces_memleft -= size; | |
| 747 surface->flags |= SDL_HWSURFACE; | |
| 748 surface->pixels = bucket->base; | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
749 surface->hwdata = (struct private_hwdata *)bucket; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
750 done: |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
751 UNLOCK_DISPLAY(); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
752 return(retval); |
| 0 | 753 } |
| 754 static void DGA_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 755 { | |
| 756 vidmem_bucket *bucket, *freeable; | |
| 757 | |
| 758 /* Look for the bucket in the current list */ | |
|
102
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
759 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
760 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
761 break; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
762 } |
| 0 | 763 } |
|
102
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
764 if ( bucket && bucket->used ) { |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
765 /* Add the memory back to the total */ |
| 0 | 766 #ifdef DGA_DEBUG |
| 767 printf("Freeing bucket of %d bytes\n", bucket->size); | |
| 768 #endif | |
|
102
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
769 surfaces_memleft += bucket->size; |
| 0 | 770 |
|
102
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
771 /* Can we merge the space with surrounding buckets? */ |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
772 bucket->used = 0; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
773 if ( bucket->next && ! bucket->next->used ) { |
| 0 | 774 #ifdef DGA_DEBUG |
| 775 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); | |
| 776 #endif | |
|
102
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
777 freeable = bucket->next; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
778 bucket->size += bucket->next->size; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
779 bucket->next = bucket->next->next; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
780 if ( bucket->next ) { |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
781 bucket->next->prev = bucket; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
782 } |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
783 free(freeable); |
| 0 | 784 } |
|
102
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
785 if ( bucket->prev && ! bucket->prev->used ) { |
| 0 | 786 #ifdef DGA_DEBUG |
| 787 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); | |
| 788 #endif | |
|
102
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
789 freeable = bucket; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
790 bucket->prev->size += bucket->size; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
791 bucket->prev->next = bucket->next; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
792 if ( bucket->next ) { |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
793 bucket->next->prev = bucket->prev; |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
794 } |
|
9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
Sam Lantinga <slouken@lokigames.com>
parents:
101
diff
changeset
|
795 free(freeable); |
| 0 | 796 } |
| 797 } | |
| 798 surface->pixels = NULL; | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
799 surface->hwdata = NULL; |
| 0 | 800 } |
| 801 | |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
802 static __inline__ void DGA_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y) |
| 0 | 803 { |
| 804 *x = (long)((Uint8 *)dst->pixels - memory_base)%memory_pitch; | |
| 805 *y = (long)((Uint8 *)dst->pixels - memory_base)/memory_pitch; | |
| 806 } | |
| 807 | |
| 808 static int DGA_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 809 { | |
| 810 int x, y; | |
| 811 unsigned int w, h; | |
| 812 | |
| 813 /* Don't fill the visible part of the screen, wait until flipped */ | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
814 LOCK_DISPLAY(); |
| 0 | 815 if ( was_flipped && (dst == this->screen) ) { |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
816 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 817 /* Keep waiting for the hardware ... */ ; |
| 818 was_flipped = 0; | |
| 819 } | |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
820 DGA_dst_to_xy(this, dst, &x, &y); |
| 0 | 821 x += rect->x; |
| 822 y += rect->y; | |
| 823 w = rect->w; | |
| 824 h = rect->h; | |
| 825 #if 0 | |
| 826 printf("Hardware accelerated rectangle fill: %dx%d at %d,%d\n", w, h, x, y); | |
| 827 #endif | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
828 SDL_NAME(XDGAFillRectangle)(DGA_Display, DGA_Screen, x, y, w, h, color); |
|
540
4bcfb93e0dfe
Greatly improved X11 DGA video speed (thanks Cezary!)
Sam Lantinga <slouken@libsdl.org>
parents:
462
diff
changeset
|
829 if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
830 pXFlush(DGA_Display); |
|
540
4bcfb93e0dfe
Greatly improved X11 DGA video speed (thanks Cezary!)
Sam Lantinga <slouken@libsdl.org>
parents:
462
diff
changeset
|
831 } |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
832 DGA_AddBusySurface(dst); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
833 UNLOCK_DISPLAY(); |
| 0 | 834 return(0); |
| 835 } | |
| 836 | |
| 837 static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 838 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 839 { | |
| 840 SDL_VideoDevice *this; | |
| 841 int srcx, srcy; | |
| 842 int dstx, dsty; | |
| 843 unsigned int w, h; | |
| 844 | |
| 845 this = current_video; | |
| 846 /* Don't blit to the visible part of the screen, wait until flipped */ | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
847 LOCK_DISPLAY(); |
| 0 | 848 if ( was_flipped && (dst == this->screen) ) { |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
849 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 850 /* Keep waiting for the hardware ... */ ; |
| 851 was_flipped = 0; | |
| 852 } | |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
853 DGA_dst_to_xy(this, src, &srcx, &srcy); |
| 0 | 854 srcx += srcrect->x; |
| 855 srcy += srcrect->y; | |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
856 DGA_dst_to_xy(this, dst, &dstx, &dsty); |
| 0 | 857 dstx += dstrect->x; |
| 858 dsty += dstrect->y; | |
| 859 w = srcrect->w; | |
| 860 h = srcrect->h; | |
| 861 #if 0 | |
| 862 printf("Blitting %dx%d from %d,%d to %d,%d\n", w, h, srcx, srcy, dstx, dsty); | |
| 863 #endif | |
| 864 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
865 SDL_NAME(XDGACopyTransparentArea)(DGA_Display, DGA_Screen, |
| 0 | 866 srcx, srcy, w, h, dstx, dsty, src->format->colorkey); |
| 867 } else { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
868 SDL_NAME(XDGACopyArea)(DGA_Display, DGA_Screen, |
| 0 | 869 srcx, srcy, w, h, dstx, dsty); |
| 870 } | |
|
540
4bcfb93e0dfe
Greatly improved X11 DGA video speed (thanks Cezary!)
Sam Lantinga <slouken@libsdl.org>
parents:
462
diff
changeset
|
871 if ( !(this->screen->flags & SDL_DOUBLEBUF) ) { |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
872 pXFlush(DGA_Display); |
|
540
4bcfb93e0dfe
Greatly improved X11 DGA video speed (thanks Cezary!)
Sam Lantinga <slouken@libsdl.org>
parents:
462
diff
changeset
|
873 } |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
874 DGA_AddBusySurface(src); |
|
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
875 DGA_AddBusySurface(dst); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
876 UNLOCK_DISPLAY(); |
| 0 | 877 return(0); |
| 878 } | |
| 879 | |
| 880 static int DGA_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) | |
| 881 { | |
| 882 int accelerated; | |
| 883 | |
| 884 /* Set initial acceleration on */ | |
| 885 src->flags |= SDL_HWACCEL; | |
| 886 | |
| 887 /* Set the surface attributes */ | |
| 888 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 889 if ( ! this->info.blit_hw_A ) { | |
| 890 src->flags &= ~SDL_HWACCEL; | |
| 891 } | |
| 892 } | |
| 893 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 894 if ( ! this->info.blit_hw_CC ) { | |
| 895 src->flags &= ~SDL_HWACCEL; | |
| 896 } | |
| 897 } | |
| 898 | |
| 899 /* Check to see if final surface blit is accelerated */ | |
| 900 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 901 if ( accelerated ) { | |
| 902 src->map->hw_blit = HWAccelBlit; | |
| 903 } | |
| 904 return(accelerated); | |
| 905 } | |
| 906 | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
907 static __inline__ void DGA_WaitFlip(_THIS) |
| 0 | 908 { |
| 909 if ( was_flipped ) { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
910 while ( SDL_NAME(XDGAGetViewportStatus)(DGA_Display, DGA_Screen) ) |
| 0 | 911 /* Keep waiting for the hardware ... */ ; |
| 912 was_flipped = 0; | |
| 913 } | |
| 914 } | |
| 915 | |
| 916 static int DGA_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 917 { | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
918 if ( surface == this->screen ) { |
| 0 | 919 SDL_mutexP(hw_lock); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
920 LOCK_DISPLAY(); |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
921 if ( DGA_IsSurfaceBusy(surface) ) { |
|
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
922 DGA_WaitBusySurfaces(this); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
923 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
924 DGA_WaitFlip(this); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
925 UNLOCK_DISPLAY(); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
926 } else { |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
927 if ( DGA_IsSurfaceBusy(surface) ) { |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
928 LOCK_DISPLAY(); |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
929 DGA_WaitBusySurfaces(this); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
930 UNLOCK_DISPLAY(); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
931 } |
| 0 | 932 } |
| 933 return(0); | |
| 934 } | |
| 935 static void DGA_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 936 { | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
937 if ( surface == this->screen ) { |
| 0 | 938 SDL_mutexV(hw_lock); |
| 939 } | |
| 940 } | |
| 941 | |
| 942 static int DGA_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 943 { | |
| 944 /* Wait for vertical retrace and then flip display */ | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
945 LOCK_DISPLAY(); |
|
105
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
946 if ( DGA_IsSurfaceBusy(this->screen) ) { |
|
2136ea8953f9
Some minor name changes to clean up
Sam Lantinga <slouken@lokigames.com>
parents:
102
diff
changeset
|
947 DGA_WaitBusySurfaces(this); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
948 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
949 DGA_WaitFlip(this); |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
950 SDL_NAME(XDGASetViewport)(DGA_Display, DGA_Screen, |
| 0 | 951 0, flip_yoffset[flip_page], XDGAFlipRetrace); |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
952 pXFlush(DGA_Display); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
953 UNLOCK_DISPLAY(); |
| 0 | 954 was_flipped = 1; |
| 955 flip_page = !flip_page; | |
| 956 | |
| 957 surface->pixels = flip_address[flip_page]; | |
| 958 return(0); | |
| 959 } | |
| 960 | |
| 961 static void DGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 962 { | |
| 963 /* The application is already updating the visible video memory */ | |
| 964 return; | |
| 965 } | |
| 966 | |
| 967 static int DGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 968 { | |
| 969 int i; | |
| 970 XColor *xcmap; | |
| 971 | |
| 972 /* This happens on initialization */ | |
| 973 if ( ! DGA_colormap ) { | |
| 974 return(0); | |
| 975 } | |
| 976 xcmap = (XColor *)alloca(ncolors*sizeof(*xcmap)); | |
| 977 for ( i=0; i<ncolors; ++i ) { | |
| 978 xcmap[i].pixel = firstcolor + i; | |
| 979 xcmap[i].red = (colors[i].r<<8)|colors[i].r; | |
| 980 xcmap[i].green = (colors[i].g<<8)|colors[i].g; | |
| 981 xcmap[i].blue = (colors[i].b<<8)|colors[i].b; | |
| 982 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 983 } | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
984 LOCK_DISPLAY(); |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
985 pXStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
986 pXSync(DGA_Display, False); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
987 UNLOCK_DISPLAY(); |
| 0 | 988 |
| 989 /* That was easy. :) */ | |
| 990 return(1); | |
| 991 } | |
| 992 | |
| 993 int DGA_SetGammaRamp(_THIS, Uint16 *ramp) | |
| 994 { | |
| 995 int i, ncolors; | |
| 996 XColor xcmap[256]; | |
| 997 | |
| 998 /* See if actually setting the gamma is supported */ | |
| 999 if ( DGA_visualClass != DirectColor ) { | |
| 1000 SDL_SetError("Gamma correction not supported on this visual"); | |
| 1001 return(-1); | |
| 1002 } | |
| 1003 | |
| 1004 /* Calculate the appropriate palette for the given gamma ramp */ | |
| 1005 if ( this->screen->format->BitsPerPixel <= 16 ) { | |
| 1006 ncolors = 64; /* Is this right? */ | |
| 1007 } else { | |
| 1008 ncolors = 256; | |
| 1009 } | |
| 1010 for ( i=0; i<ncolors; ++i ) { | |
| 1011 Uint8 c = (256 * i / ncolors); | |
| 1012 xcmap[i].pixel = SDL_MapRGB(this->screen->format, c, c, c); | |
| 1013 xcmap[i].red = ramp[0*256+c]; | |
| 1014 xcmap[i].green = ramp[1*256+c]; | |
| 1015 xcmap[i].blue = ramp[2*256+c]; | |
| 1016 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 1017 } | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1018 LOCK_DISPLAY(); |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
1019 pXStoreColors(DGA_Display, DGA_colormap, xcmap, ncolors); |
|
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
1020 pXSync(DGA_Display, False); |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1021 UNLOCK_DISPLAY(); |
| 0 | 1022 return(0); |
| 1023 } | |
| 1024 | |
| 1025 void DGA_VideoQuit(_THIS) | |
| 1026 { | |
| 1027 int i, j; | |
| 1028 | |
| 1029 if ( DGA_Display ) { | |
| 1030 /* Free colormap, if necessary */ | |
| 1031 if ( DGA_colormap ) { | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
1032 pXFreeColormap(DGA_Display, DGA_colormap); |
| 0 | 1033 DGA_colormap = 0; |
| 1034 } | |
| 1035 | |
| 1036 /* Unmap memory and reset video mode */ | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
1037 SDL_NAME(XDGACloseFramebuffer)(DGA_Display, DGA_Screen); |
| 0 | 1038 if ( this->screen ) { |
| 1039 /* Tell SDL not to free the pixels */ | |
| 1040 this->screen->pixels = NULL; | |
| 1041 } | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
1042 SDL_NAME(XDGASetMode)(DGA_Display, DGA_Screen, 0); |
| 0 | 1043 |
| 1044 /* Clear the lock mutex */ | |
| 1045 if ( hw_lock != NULL ) { | |
| 1046 SDL_DestroyMutex(hw_lock); | |
| 1047 hw_lock = NULL; | |
| 1048 } | |
|
101
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1049 #ifdef LOCK_DGA_DISPLAY |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1050 if ( event_lock != NULL ) { |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1051 SDL_DestroyMutex(event_lock); |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1052 event_lock = NULL; |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1053 } |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1054 #endif /* LOCK_DGA_DISPLAY */ |
|
825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
1055 |
| 0 | 1056 |
| 1057 /* Clean up defined video modes */ | |
| 1058 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1059 if ( SDL_modelist[i] != NULL ) { | |
| 1060 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
| 1061 free(SDL_modelist[i][j]); | |
| 1062 } | |
| 1063 free(SDL_modelist[i]); | |
| 1064 SDL_modelist[i] = NULL; | |
| 1065 } | |
| 1066 } | |
| 1067 | |
| 1068 /* Clean up the memory bucket list */ | |
| 1069 DGA_FreeHWSurfaces(this); | |
| 1070 | |
| 1071 /* Close up the display */ | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
966
diff
changeset
|
1072 pXCloseDisplay(DGA_Display); |
| 0 | 1073 } |
| 1074 } |