mirror of
https://git.code.sf.net/p/quake/quakeforge
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142 lines
4 KiB
C
142 lines
4 KiB
C
/*
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vid.h
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video driver defs
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#ifndef __vid_h_
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#define __vid_h_
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#include "QF/qtypes.h"
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#define VID_CBITS 6
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#define VID_GRADES (1 << VID_CBITS)
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struct cvar_s;
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extern byte *vid_colormap;
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extern unsigned char d_15to8table[65536];
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extern struct cvar_s *vid_fullscreen;
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extern struct cvar_s *vid_system_gamma;
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extern struct cvar_s *vid_width;
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extern struct cvar_s *vid_height;
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extern struct cvar_s *vid_bitdepth;
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typedef struct vrect_s {
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int x,y,width,height;
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struct vrect_s *pnext;
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} vrect_t;
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typedef struct {
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qboolean initialized;
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void *buffer; // invisible buffer
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short *zbuffer;
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void *surfcache;
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byte *basepal; // 256 * 3
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byte *palette; // 256 * 3
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byte *colormap8; // 256 * VID_GRADES size
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unsigned short *colormap16; // 256 * VID_GRADES size
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unsigned int *colormap32; // 256 * VID_GRADES size
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int fullbright; // index of first fullbright color
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unsigned int rowbytes; // may be > width if displayed in a window
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unsigned int width;
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unsigned int height;
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float aspect; // width / height -- < 0 is taller than wide
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int numpages;
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qboolean recalc_refdef; // if true, recalc vid-based stuff
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qboolean cshift_changed;
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void *conbuffer;
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int conrowbytes;
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unsigned int conwidth;
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unsigned int conheight;
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int maxwarpwidth;
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int maxwarpheight;
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byte *direct; // direct drawing to framebuffer, if not
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// NULL
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int (*surf_cache_size)(int width, int height);
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void (*flush_caches)(void);
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void (*init_caches)(void *cache, int size);
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void (*do_screen_buffer)(void);
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} viddef_t;
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extern viddef_t vid; // global video state
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extern unsigned short d_8to16table[256];
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extern unsigned int d_8to24table[256];
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extern int scr_width, scr_height;
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extern byte gammatable[256];
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extern struct cvar_s *vid_gamma;
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extern qboolean vid_gamma_avail;
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// called at startup and after any gamma correction
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void VID_SetPalette (unsigned char *palette);
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void VID_Init8bitPalette (void);
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// called for bonus and pain flashes, and for underwater color changes
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void VID_ShiftPalette (unsigned char *palette);
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void VID_Init_Cvars (void);
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// Called at startup to set up translation tables, takes 256 8 bit RGB values
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// the palette data will go away after the call, so it must be copied off if
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// the video driver will need it again
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void VID_Init (unsigned char *);
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// Called at shutdown
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void VID_Shutdown (void);
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// flushes the given rectangles from the view buffer to the screen
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void VID_Update (vrect_t *rects);
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// sets the mode; only used by the Quake engine for resetting to mode 0 (the
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// base mode) on memory allocation failures
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// or not
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// int VID_SetMode (int modenum, unsigned char *palette);
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void VID_InitBuffers (void);
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void VID_LockBuffer (void);
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void VID_UnlockBuffer (void);
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qboolean VID_Is8bit (void);
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void VID_RaiseWindow (void);
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void VID_MinimiseWindow (void);
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void VID_SetCaption (const char *text);
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// used to set window caption
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void VID_GetWindowSize (int def_w, int def_h);
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void VID_InitGamma (unsigned char *);
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double VID_GetGamma (void);
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qboolean VID_SetGamma (double);
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void VID_UpdateGamma (struct cvar_s *);
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void GL_Init_Common (void);
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void VID_MakeColormaps (int fullbrights, byte *pal);
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void VGA_UpdatePlanarScreen (void *srcbuffer);
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#endif // __vid_h_
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