src/video/dga/SDL_dgavideo.h
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FUNCTIONS
This source file includes following functions.
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: SDL_dgavideo.h,v 1.1.2.6 2001/02/21 07:34:19 hercules Exp $";
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
40
41 /* This is the structure we use to keep track of video memory */
42 typedef struct vidmem_bucket {
43 struct vidmem_bucket *prev;
44 unsigned int used;
45 Uint8 *base;
46 unsigned int size;
47 struct vidmem_bucket *next;
48 } vidmem_bucket;
49
50 /* Information about the location of the surface in hardware memory */
51 struct private_hwdata {
52 int x;
53 int y;
54 };
55
56 /* Private display data */
57 struct SDL_PrivateVideoData {
58 Display *DGA_Display;
59 Colormap DGA_colormap;
60 int visualClass;
61
62 #define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */
63 int SDL_nummodes[NUM_MODELISTS];
64 SDL_Rect **SDL_modelist[NUM_MODELISTS];
65
66 /* Information for the video surface */
67 Uint8 *memory_base;
68 int memory_pitch;
69 SDL_mutex *hw_lock;
70 int sync_needed;
71 int was_flipped;
72
73 /* Information for hardware surfaces */
74 vidmem_bucket surfaces;
75 int surfaces_memtotal;
76 int surfaces_memleft;
77
78 /* Information for double-buffering */
79 int flip_page;
80 int flip_yoffset[2];
81 Uint8 *flip_address[2];
82
83 /* Used to handle DGA events */
84 int event_base;
85 };
86 /* Old variable names */
87 #define DGA_Display (this->hidden->DGA_Display)
88 #define DGA_Screen DefaultScreen(DGA_Display)
89 #define DGA_colormap (this->hidden->DGA_colormap)
90 #define DGA_visualClass (this->hidden->visualClass)
91 #define memory_base (this->hidden->memory_base)
92 #define memory_pitch (this->hidden->memory_pitch)
93 #define flip_page (this->hidden->flip_page)
94 #define flip_yoffset (this->hidden->flip_yoffset)
95 #define flip_address (this->hidden->flip_address)
96 #define sync_needed (this->hidden->sync_needed)
97 #define was_flipped (this->hidden->was_flipped)
98 #define SDL_nummodes (this->hidden->SDL_nummodes)
99 #define SDL_modelist (this->hidden->SDL_modelist)
100 #define surfaces (this->hidden->surfaces)
101 #define surfaces_memtotal (this->hidden->surfaces_memtotal)
102 #define surfaces_memleft (this->hidden->surfaces_memleft)
103 #define hw_lock (this->hidden->hw_lock)
104 #define DGA_event_base (this->hidden->event_base)
105
106 #endif /* _SDL_dgavideo_h */