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comparison src/video/dga/SDL_dgavideo.h @ 101:825b2fa28e2e

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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
comparison
equal deleted inserted replaced
100:a1c973c35fef 101:825b2fa28e2e
35 #include "SDL_sysvideo.h" 35 #include "SDL_sysvideo.h"
36 36
37 /* Hidden "this" pointer for the video functions */ 37 /* Hidden "this" pointer for the video functions */
38 #define _THIS SDL_VideoDevice *this 38 #define _THIS SDL_VideoDevice *this
39 39
40 /* Define this if you need the DGA driver to be thread-safe */
41 #define LOCK_DGA_DISPLAY
42 #ifdef LOCK_DGA_DISPLAY
43 #define LOCK_DISPLAY() SDL_mutexP(event_lock)
44 #define UNLOCK_DISPLAY() SDL_mutexV(event_lock)
45 #else
46 #define LOCK_DISPLAY()
47 #define UNLOCK_DISPLAY()
48 #endif
49
40 50
41 /* This is the structure we use to keep track of video memory */ 51 /* This is the structure we use to keep track of video memory */
42 typedef struct vidmem_bucket { 52 typedef struct vidmem_bucket {
43 struct vidmem_bucket *prev; 53 struct vidmem_bucket *prev;
44 unsigned int used; 54 int used;
55 int dirty;
45 Uint8 *base; 56 Uint8 *base;
46 unsigned int size; 57 unsigned int size;
47 struct vidmem_bucket *next; 58 struct vidmem_bucket *next;
48 } vidmem_bucket; 59 } vidmem_bucket;
49 60
80 int flip_yoffset[2]; 91 int flip_yoffset[2];
81 Uint8 *flip_address[2]; 92 Uint8 *flip_address[2];
82 93
83 /* Used to handle DGA events */ 94 /* Used to handle DGA events */
84 int event_base; 95 int event_base;
96 #ifdef LOCK_DGA_DISPLAY
97 SDL_mutex *event_lock;
98 #endif
85 }; 99 };
86 /* Old variable names */ 100 /* Old variable names */
87 #define DGA_Display (this->hidden->DGA_Display) 101 #define DGA_Display (this->hidden->DGA_Display)
88 #define DGA_Screen DefaultScreen(DGA_Display) 102 #define DGA_Screen DefaultScreen(DGA_Display)
89 #define DGA_colormap (this->hidden->DGA_colormap) 103 #define DGA_colormap (this->hidden->DGA_colormap)
100 #define surfaces (this->hidden->surfaces) 114 #define surfaces (this->hidden->surfaces)
101 #define surfaces_memtotal (this->hidden->surfaces_memtotal) 115 #define surfaces_memtotal (this->hidden->surfaces_memtotal)
102 #define surfaces_memleft (this->hidden->surfaces_memleft) 116 #define surfaces_memleft (this->hidden->surfaces_memleft)
103 #define hw_lock (this->hidden->hw_lock) 117 #define hw_lock (this->hidden->hw_lock)
104 #define DGA_event_base (this->hidden->event_base) 118 #define DGA_event_base (this->hidden->event_base)
119 #define event_lock (this->hidden->event_lock)
105 120
106 #endif /* _SDL_dgavideo_h */ 121 #endif /* _SDL_dgavideo_h */