Mercurial > sdl-ios-xcode
annotate src/video/dga/SDL_dgavideo.h @ 101:825b2fa28e2e
DGA video driver is now thread-safe
Improved DGA hardware acceleration code
| author | Sam Lantinga <slouken@lokigames.com> |
|---|---|
| date | Thu, 12 Jul 2001 20:42:22 +0000 |
| parents | 74212992fb08 |
| children | 2136ea8953f9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga | |
| 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 | |
| 20 slouken@devolution.com | |
| 21 */ | |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #ifndef _SDL_dgavideo_h | |
| 29 #define _SDL_dgavideo_h | |
| 30 | |
| 31 #include <X11/Xlib.h> | |
| 32 | |
| 33 #include "SDL_mouse.h" | |
| 34 #include "SDL_mutex.h" | |
| 35 #include "SDL_sysvideo.h" | |
| 36 | |
| 37 /* Hidden "this" pointer for the video functions */ | |
| 38 #define _THIS SDL_VideoDevice *this | |
| 39 | |
|
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825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
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40 /* Define this if you need the DGA driver to be thread-safe */ |
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41 #define LOCK_DGA_DISPLAY |
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42 #ifdef LOCK_DGA_DISPLAY |
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825b2fa28e2e
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43 #define LOCK_DISPLAY() SDL_mutexP(event_lock) |
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825b2fa28e2e
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44 #define UNLOCK_DISPLAY() SDL_mutexV(event_lock) |
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45 #else |
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46 #define LOCK_DISPLAY() |
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825b2fa28e2e
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Sam Lantinga <slouken@lokigames.com>
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47 #define UNLOCK_DISPLAY() |
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48 #endif |
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49 |
| 0 | 50 |
| 51 /* This is the structure we use to keep track of video memory */ | |
| 52 typedef struct vidmem_bucket { | |
| 53 struct vidmem_bucket *prev; | |
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54 int used; |
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55 int dirty; |
| 0 | 56 Uint8 *base; |
| 57 unsigned int size; | |
| 58 struct vidmem_bucket *next; | |
| 59 } vidmem_bucket; | |
| 60 | |
| 61 /* Information about the location of the surface in hardware memory */ | |
| 62 struct private_hwdata { | |
| 63 int x; | |
| 64 int y; | |
| 65 }; | |
| 66 | |
| 67 /* Private display data */ | |
| 68 struct SDL_PrivateVideoData { | |
| 69 Display *DGA_Display; | |
| 70 Colormap DGA_colormap; | |
| 71 int visualClass; | |
| 72 | |
| 73 #define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */ | |
| 74 int SDL_nummodes[NUM_MODELISTS]; | |
| 75 SDL_Rect **SDL_modelist[NUM_MODELISTS]; | |
| 76 | |
| 77 /* Information for the video surface */ | |
| 78 Uint8 *memory_base; | |
| 79 int memory_pitch; | |
| 80 SDL_mutex *hw_lock; | |
| 81 int sync_needed; | |
| 82 int was_flipped; | |
| 83 | |
| 84 /* Information for hardware surfaces */ | |
| 85 vidmem_bucket surfaces; | |
| 86 int surfaces_memtotal; | |
| 87 int surfaces_memleft; | |
| 88 | |
| 89 /* Information for double-buffering */ | |
| 90 int flip_page; | |
| 91 int flip_yoffset[2]; | |
| 92 Uint8 *flip_address[2]; | |
| 93 | |
| 94 /* Used to handle DGA events */ | |
| 95 int event_base; | |
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825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
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96 #ifdef LOCK_DGA_DISPLAY |
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825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
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97 SDL_mutex *event_lock; |
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825b2fa28e2e
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Sam Lantinga <slouken@lokigames.com>
parents:
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diff
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98 #endif |
| 0 | 99 }; |
| 100 /* Old variable names */ | |
| 101 #define DGA_Display (this->hidden->DGA_Display) | |
| 102 #define DGA_Screen DefaultScreen(DGA_Display) | |
| 103 #define DGA_colormap (this->hidden->DGA_colormap) | |
| 104 #define DGA_visualClass (this->hidden->visualClass) | |
| 105 #define memory_base (this->hidden->memory_base) | |
| 106 #define memory_pitch (this->hidden->memory_pitch) | |
| 107 #define flip_page (this->hidden->flip_page) | |
| 108 #define flip_yoffset (this->hidden->flip_yoffset) | |
| 109 #define flip_address (this->hidden->flip_address) | |
| 110 #define sync_needed (this->hidden->sync_needed) | |
| 111 #define was_flipped (this->hidden->was_flipped) | |
| 112 #define SDL_nummodes (this->hidden->SDL_nummodes) | |
| 113 #define SDL_modelist (this->hidden->SDL_modelist) | |
| 114 #define surfaces (this->hidden->surfaces) | |
| 115 #define surfaces_memtotal (this->hidden->surfaces_memtotal) | |
| 116 #define surfaces_memleft (this->hidden->surfaces_memleft) | |
| 117 #define hw_lock (this->hidden->hw_lock) | |
| 118 #define DGA_event_base (this->hidden->event_base) | |
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825b2fa28e2e
DGA video driver is now thread-safe
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
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119 #define event_lock (this->hidden->event_lock) |
| 0 | 120 |
| 121 #endif /* _SDL_dgavideo_h */ |