author | Sam Lantinga <slouken@libsdl.org> |
Sun, 04 Jan 2004 16:49:27 +0000 | |
changeset 769 | b8d311d90021 |
parent 297 | f6ffac90895c |
child 1201 | 718d00094f82 |
permissions | -rw-r--r-- |
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/* |
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SDL - Simple DirectMedia Layer |
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Copyright (C) 1997-2004 Sam Lantinga |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Library General Public |
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License as published by the Free Software Foundation; either |
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version 2 of the License, or (at your option) any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Library General Public License for more details. |
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You should have received a copy of the GNU Library General Public |
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License along with this library; if not, write to the Free |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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Sam Lantinga |
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slouken@libsdl.org |
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*/ |
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#ifdef SAVE_RCSID |
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static char rcsid = |
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"@(#) $Id$"; |
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#endif |
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#ifndef _SDL_fbvideo_h |
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#define _SDL_fbvideo_h |
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#include <sys/types.h> |
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#include <termios.h> |
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#include <linux/fb.h> |
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#include "SDL_mouse.h" |
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#include "SDL_mutex.h" |
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#include "SDL_sysvideo.h" |
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/* Hidden "this" pointer for the video functions */ |
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#define _THIS SDL_VideoDevice *this |
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/* This is the structure we use to keep track of video memory */ |
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typedef struct vidmem_bucket { |
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struct vidmem_bucket *prev; |
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int used; |
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int dirty; |
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char *base; |
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unsigned int size; |
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struct vidmem_bucket *next; |
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} vidmem_bucket; |
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/* Private display data */ |
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struct SDL_PrivateVideoData { |
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int console_fd; |
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struct fb_var_screeninfo cache_vinfo; |
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struct fb_var_screeninfo saved_vinfo; |
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int saved_cmaplen; |
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__u16 *saved_cmap; |
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int current_vt; |
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int saved_vt; |
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int keyboard_fd; |
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int saved_kbd_mode; |
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struct termios saved_kbd_termios; |
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int mouse_fd; |
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char *mapped_mem; |
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int mapped_memlen; |
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int mapped_offset; |
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char *mapped_io; |
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long mapped_iolen; |
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int flip_page; |
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char *flip_address[2]; |
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#define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */ |
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int SDL_nummodes[NUM_MODELISTS]; |
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SDL_Rect **SDL_modelist[NUM_MODELISTS]; |
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vidmem_bucket surfaces; |
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int surfaces_memtotal; |
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int surfaces_memleft; |
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SDL_mutex *hw_lock; |
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void (*wait_vbl)(_THIS); |
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void (*wait_idle)(_THIS); |
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}; |
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/* Old variable names */ |
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#define console_fd (this->hidden->console_fd) |
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#define current_vt (this->hidden->current_vt) |
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#define saved_vt (this->hidden->saved_vt) |
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#define keyboard_fd (this->hidden->keyboard_fd) |
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#define saved_kbd_mode (this->hidden->saved_kbd_mode) |
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#define saved_kbd_termios (this->hidden->saved_kbd_termios) |
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#define mouse_fd (this->hidden->mouse_fd) |
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#define cache_vinfo (this->hidden->cache_vinfo) |
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#define saved_vinfo (this->hidden->saved_vinfo) |
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#define saved_cmaplen (this->hidden->saved_cmaplen) |
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#define saved_cmap (this->hidden->saved_cmap) |
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#define mapped_mem (this->hidden->mapped_mem) |
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#define mapped_memlen (this->hidden->mapped_memlen) |
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#define mapped_offset (this->hidden->mapped_offset) |
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#define mapped_io (this->hidden->mapped_io) |
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#define mapped_iolen (this->hidden->mapped_iolen) |
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#define flip_page (this->hidden->flip_page) |
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#define flip_address (this->hidden->flip_address) |
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#define SDL_nummodes (this->hidden->SDL_nummodes) |
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#define SDL_modelist (this->hidden->SDL_modelist) |
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#define surfaces (this->hidden->surfaces) |
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#define surfaces_memtotal (this->hidden->surfaces_memtotal) |
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#define surfaces_memleft (this->hidden->surfaces_memleft) |
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#define hw_lock (this->hidden->hw_lock) |
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#define wait_vbl (this->hidden->wait_vbl) |
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#define wait_idle (this->hidden->wait_idle) |
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/* Accelerator types that are supported by the driver, but are not |
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necessarily in the kernel headers on the system we compile on. |
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*/ |
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#ifndef FB_ACCEL_MATROX_MGAG400 |
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#define FB_ACCEL_MATROX_MGAG400 26 /* Matrox G400 */ |
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#endif |
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#ifndef FB_ACCEL_3DFX_BANSHEE |
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#define FB_ACCEL_3DFX_BANSHEE 31 /* 3Dfx Banshee */ |
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#endif |
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/* These functions are defined in SDL_fbvideo.c */ |
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extern void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area); |
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extern void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area); |
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/* These are utility functions for working with video surfaces */ |
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static __inline__ void FB_AddBusySurface(SDL_Surface *surface) |
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{ |
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((vidmem_bucket *)surface->hwdata)->dirty = 1; |
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} |
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static __inline__ int FB_IsSurfaceBusy(SDL_Surface *surface) |
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{ |
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return ((vidmem_bucket *)surface->hwdata)->dirty; |
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} |
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static __inline__ void FB_WaitBusySurfaces(_THIS) |
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{ |
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vidmem_bucket *bucket; |
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/* Wait for graphic operations to complete */ |
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wait_idle(this); |
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/* Clear all surface dirty bits */ |
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for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
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bucket->dirty = 0; |
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} |
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} |
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static __inline__ void FB_dst_to_xy(_THIS, SDL_Surface *dst, int *x, int *y) |
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{ |
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*x = (long)((char *)dst->pixels - mapped_mem)%this->screen->pitch; |
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*y = (long)((char *)dst->pixels - mapped_mem)/this->screen->pitch; |
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if ( dst == this->screen ) { |
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*x += this->offset_x; |
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*y += this->offset_y; |
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} |
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} |
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#endif /* _SDL_fbvideo_h */ |