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comparison src/video/fbcon/SDL_fbvideo.h @ 106:63ec24e0575f

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Merged DGA video surface handling improvements, unified locking code. Fixed matrox blit bug where src Y less than dst Y Fixed hardware surface init when no resolution change
author Sam Lantinga <slouken@lokigames.com>
date Fri, 13 Jul 2001 10:19:51 +0000
parents 74212992fb08
children e8157fcb3114
comparison
equal deleted inserted replaced
105:2136ea8953f9 106:63ec24e0575f
41 41
42 42
43 /* This is the structure we use to keep track of video memory */ 43 /* This is the structure we use to keep track of video memory */
44 typedef struct vidmem_bucket { 44 typedef struct vidmem_bucket {
45 struct vidmem_bucket *prev; 45 struct vidmem_bucket *prev;
46 unsigned int used; 46 int used;
47 int dirty;
47 char *base; 48 char *base;
48 unsigned int size; 49 unsigned int size;
49 struct vidmem_bucket *next; 50 struct vidmem_bucket *next;
50 } vidmem_bucket; 51 } vidmem_bucket;
51
52 /* Information about the location of the surface in hardware memory */
53 struct private_hwdata {
54 int x;
55 int y;
56 };
57 52
58 /* Private display data */ 53 /* Private display data */
59 struct SDL_PrivateVideoData { 54 struct SDL_PrivateVideoData {
60 int console_fd; 55 int console_fd;
61 struct fb_var_screeninfo cache_vinfo; 56 struct fb_var_screeninfo cache_vinfo;
88 int surfaces_memleft; 83 int surfaces_memleft;
89 84
90 SDL_mutex *hw_lock; 85 SDL_mutex *hw_lock;
91 86
92 void (*wait_vbl)(_THIS); 87 void (*wait_vbl)(_THIS);
88 void (*wait_idle)(_THIS);
93 }; 89 };
94 /* Old variable names */ 90 /* Old variable names */
95 #define console_fd (this->hidden->console_fd) 91 #define console_fd (this->hidden->console_fd)
96 #define current_vt (this->hidden->current_vt) 92 #define current_vt (this->hidden->current_vt)
97 #define saved_vt (this->hidden->saved_vt) 93 #define saved_vt (this->hidden->saved_vt)
115 #define surfaces (this->hidden->surfaces) 111 #define surfaces (this->hidden->surfaces)
116 #define surfaces_memtotal (this->hidden->surfaces_memtotal) 112 #define surfaces_memtotal (this->hidden->surfaces_memtotal)
117 #define surfaces_memleft (this->hidden->surfaces_memleft) 113 #define surfaces_memleft (this->hidden->surfaces_memleft)
118 #define hw_lock (this->hidden->hw_lock) 114 #define hw_lock (this->hidden->hw_lock)
119 #define wait_vbl (this->hidden->wait_vbl) 115 #define wait_vbl (this->hidden->wait_vbl)
116 #define wait_idle (this->hidden->wait_idle)
120 117
121 /* Accelerator types that are supported by the driver, but are not 118 /* Accelerator types that are supported by the driver, but are not
122 necessarily in the kernel headers on the system we compile on. 119 necessarily in the kernel headers on the system we compile on.
123 */ 120 */
124 #ifndef FB_ACCEL_MATROX_MGAG400 121 #ifndef FB_ACCEL_MATROX_MGAG400
130 127
131 /* These functions are defined in SDL_fbvideo.c */ 128 /* These functions are defined in SDL_fbvideo.c */
132 extern void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area); 129 extern void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area);
133 extern void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area); 130 extern void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area);
134 131
132 /* These are utility functions for working with video surfaces */
133
134 static __inline__ void FB_AddBusySurface(SDL_Surface *surface)
135 {
136 ((vidmem_bucket *)surface->hwdata)->dirty = 1;
137 }
138
139 static __inline__ int FB_IsSurfaceBusy(SDL_Surface *surface)
140 {
141 return ((vidmem_bucket *)surface->hwdata)->dirty;
142 }
143
144 static __inline__ void FB_WaitBusySurfaces(_THIS)
145 {
146 vidmem_bucket *bucket;
147
148 /* Wait for graphic operations to complete */
149 wait_idle(this);
150
151 /* Clear all surface dirty bits */
152 for ( bucket=&surfaces; bucket; bucket=bucket->next ) {
153 bucket->dirty = 0;
154 }
155 }
156
157 static __inline__ void FB_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y)
158 {
159 *x = (long)((char *)dst->pixels - mapped_mem)%this->screen->pitch;
160 *y = (long)((char *)dst->pixels - mapped_mem)/this->screen->pitch;
161 if ( dst == this->screen ) {
162 *x += this->offset_x;
163 *y += this->offset_y;
164 }
165 }
166
135 #endif /* _SDL_fbvideo_h */ 167 #endif /* _SDL_fbvideo_h */