Mercurial > sdl-ios-xcode
annotate src/video/dga/SDL_dgavideo.h @ 1460:d79e6b0c2c19
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 02 Mar 2006 07:46:24 +0000 |
| parents | d910939febfa |
| children | 14717b52abc0 45669d4efd02 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 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 |
| 0 | 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 |
| 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 | |
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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 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #ifndef _SDL_dgavideo_h | |
| 25 #define _SDL_dgavideo_h | |
| 26 | |
| 27 #include <X11/Xlib.h> | |
| 28 | |
| 29 #include "SDL_mouse.h" | |
| 30 #include "SDL_mutex.h" | |
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31 #include "../SDL_sysvideo.h" |
| 0 | 32 |
| 33 /* Hidden "this" pointer for the video functions */ | |
| 34 #define _THIS SDL_VideoDevice *this | |
| 35 | |
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36 /* Define this if you need the DGA driver to be thread-safe */ |
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37 #define LOCK_DGA_DISPLAY |
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38 #ifdef LOCK_DGA_DISPLAY |
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39 #define LOCK_DISPLAY() SDL_mutexP(event_lock) |
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40 #define UNLOCK_DISPLAY() SDL_mutexV(event_lock) |
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41 #else |
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42 #define LOCK_DISPLAY() |
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43 #define UNLOCK_DISPLAY() |
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44 #endif |
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45 |
| 0 | 46 |
| 47 /* This is the structure we use to keep track of video memory */ | |
| 48 typedef struct vidmem_bucket { | |
| 49 struct vidmem_bucket *prev; | |
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50 int used; |
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51 int dirty; |
| 0 | 52 Uint8 *base; |
| 53 unsigned int size; | |
| 54 struct vidmem_bucket *next; | |
| 55 } vidmem_bucket; | |
| 56 | |
| 57 /* Private display data */ | |
| 58 struct SDL_PrivateVideoData { | |
| 59 Display *DGA_Display; | |
| 60 Colormap DGA_colormap; | |
| 61 int visualClass; | |
| 62 | |
| 63 #define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */ | |
| 64 int SDL_nummodes[NUM_MODELISTS]; | |
| 65 SDL_Rect **SDL_modelist[NUM_MODELISTS]; | |
| 66 | |
| 67 /* Information for the video surface */ | |
| 68 Uint8 *memory_base; | |
| 69 int memory_pitch; | |
| 70 SDL_mutex *hw_lock; | |
| 71 int sync_needed; | |
| 72 int was_flipped; | |
| 73 | |
| 74 /* Information for hardware surfaces */ | |
| 75 vidmem_bucket surfaces; | |
| 76 int surfaces_memtotal; | |
| 77 int surfaces_memleft; | |
| 78 | |
| 79 /* Information for double-buffering */ | |
| 80 int flip_page; | |
| 81 int flip_yoffset[2]; | |
| 82 Uint8 *flip_address[2]; | |
| 83 | |
| 84 /* Used to handle DGA events */ | |
| 85 int event_base; | |
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86 #ifdef LOCK_DGA_DISPLAY |
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87 SDL_mutex *event_lock; |
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88 #endif |
| 0 | 89 }; |
| 90 /* Old variable names */ | |
| 91 #define DGA_Display (this->hidden->DGA_Display) | |
| 92 #define DGA_Screen DefaultScreen(DGA_Display) | |
| 93 #define DGA_colormap (this->hidden->DGA_colormap) | |
| 94 #define DGA_visualClass (this->hidden->visualClass) | |
| 95 #define memory_base (this->hidden->memory_base) | |
| 96 #define memory_pitch (this->hidden->memory_pitch) | |
| 97 #define flip_page (this->hidden->flip_page) | |
| 98 #define flip_yoffset (this->hidden->flip_yoffset) | |
| 99 #define flip_address (this->hidden->flip_address) | |
| 100 #define sync_needed (this->hidden->sync_needed) | |
| 101 #define was_flipped (this->hidden->was_flipped) | |
| 102 #define SDL_nummodes (this->hidden->SDL_nummodes) | |
| 103 #define SDL_modelist (this->hidden->SDL_modelist) | |
| 104 #define surfaces (this->hidden->surfaces) | |
| 105 #define surfaces_memtotal (this->hidden->surfaces_memtotal) | |
| 106 #define surfaces_memleft (this->hidden->surfaces_memleft) | |
| 107 #define hw_lock (this->hidden->hw_lock) | |
| 108 #define DGA_event_base (this->hidden->event_base) | |
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109 #define event_lock (this->hidden->event_lock) |
| 0 | 110 |
| 111 #endif /* _SDL_dgavideo_h */ |