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Diffstat (limited to 'distrib/sdl-1.2.15/src/video/dga/SDL_dgavideo.h')
| -rw-r--r-- | distrib/sdl-1.2.15/src/video/dga/SDL_dgavideo.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/dga/SDL_dgavideo.h b/distrib/sdl-1.2.15/src/video/dga/SDL_dgavideo.h new file mode 100644 index 0000000..bd2ecb8 --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/dga/SDL_dgavideo.h @@ -0,0 +1,124 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +#ifndef _SDL_dgavideo_h +#define _SDL_dgavideo_h + +#include <X11/Xlib.h> + +/* Apparently some X11 systems can't include this multiple times... */ +#ifndef SDL_INCLUDED_XLIBINT_H +#define SDL_INCLUDED_XLIBINT_H 1 +#include <X11/Xlibint.h> +#endif + +#include <X11/Xproto.h> + +#include "SDL_mouse.h" +#include "SDL_mutex.h" +#include "../SDL_sysvideo.h" + +/* Hidden "this" pointer for the video functions */ +#define _THIS SDL_VideoDevice *this + +/* Define this if you need the DGA driver to be thread-safe */ +#define LOCK_DGA_DISPLAY +#ifdef LOCK_DGA_DISPLAY +#define LOCK_DISPLAY() SDL_mutexP(event_lock) +#define UNLOCK_DISPLAY() SDL_mutexV(event_lock) +#else +#define LOCK_DISPLAY() +#define UNLOCK_DISPLAY() +#endif + + +/* This is the structure we use to keep track of video memory */ +typedef struct vidmem_bucket { + struct vidmem_bucket *prev; + int used; + int dirty; + Uint8 *base; + unsigned int size; + struct vidmem_bucket *next; +} vidmem_bucket; + +/* Private display data */ +struct SDL_PrivateVideoData { + Display *DGA_Display; + Colormap DGA_colormap; + int visualClass; + +#define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */ + int SDL_nummodes[NUM_MODELISTS]; + SDL_Rect **SDL_modelist[NUM_MODELISTS]; + + /* Information for the video surface */ + Uint8 *memory_base; + int memory_pitch; + SDL_mutex *hw_lock; + int sync_needed; + int was_flipped; + + /* Information for hardware surfaces */ + vidmem_bucket surfaces; + int surfaces_memtotal; + int surfaces_memleft; + + /* Information for double-buffering */ + int flip_page; + int flip_yoffset[2]; + Uint8 *flip_address[2]; + + /* Used to handle DGA events */ + int event_base; +#ifdef LOCK_DGA_DISPLAY + SDL_mutex *event_lock; +#endif + + /* Screensaver settings */ + int allow_screensaver; +}; + +/* Old variable names */ +#define DGA_Display (this->hidden->DGA_Display) +#define DGA_Screen DefaultScreen(DGA_Display) +#define DGA_colormap (this->hidden->DGA_colormap) +#define DGA_visualClass (this->hidden->visualClass) +#define memory_base (this->hidden->memory_base) +#define memory_pitch (this->hidden->memory_pitch) +#define flip_page (this->hidden->flip_page) +#define flip_yoffset (this->hidden->flip_yoffset) +#define flip_address (this->hidden->flip_address) +#define sync_needed (this->hidden->sync_needed) +#define was_flipped (this->hidden->was_flipped) +#define SDL_nummodes (this->hidden->SDL_nummodes) +#define SDL_modelist (this->hidden->SDL_modelist) +#define surfaces (this->hidden->surfaces) +#define surfaces_memtotal (this->hidden->surfaces_memtotal) +#define surfaces_memleft (this->hidden->surfaces_memleft) +#define hw_lock (this->hidden->hw_lock) +#define DGA_event_base (this->hidden->event_base) +#define event_lock (this->hidden->event_lock) +#define allow_screensaver (this->hidden->allow_screensaver) + +#endif /* _SDL_dgavideo_h */ |