mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-10 23:32:09 +00:00
6e04fd5ff6
The attached patch (against quakeforge git) changes the [con]width, [con]height, and most importantly the rowbytes members of viddef_t from unsigned to signed int, like in q2. This allows for a properly negative vid.rowbytes which may be needed in, e.g. a DIB sections windows driver if needed. Along with it, I changed a few places where unsigned int is used along with comparisons against the relevant vid.* members. One thing I am not 100% sure is the signedness requirements of d_zrowbytes and d_zwidth: q2 has them as unsigned but I am not sure whether that is because they are needed as unsigned or it was just an oversight of the id developers. They do look like they should be OK as signed int to me, though: comments? == Note from Bill Currie: I had to do some extra changes as many signed/unsigned comparisons were somehow missed.
94 lines
2.7 KiB
C
94 lines
2.7 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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*/
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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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#include "QF/vrect.h"
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#define VID_CBITS 6
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#define VID_GRADES (1 << VID_CBITS)
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typedef struct {
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qboolean initialized;
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qboolean is8bit;
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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 *gammatable; // 256
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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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int rowbytes; // may be > width if displayed in a window
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int width;
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int height;
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float aspect; // width / height -- < 1 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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quat_t cshift_color;
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void *conbuffer;
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int conrowbytes;
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int conwidth;
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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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void (*set_palette)(const byte *palette);
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// gl stuff
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void (*load_gl)(void);
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void (*init_gl)(void);
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void *(*get_proc_address)(const char *name, qboolean crit);
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void (*end_rendering)(void);
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} viddef_t;
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extern viddef_t viddef;
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extern unsigned int d_8to24table[256]; //FIXME nq/qw uses
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extern qboolean vid_gamma_avail;
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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 (byte *palette, byte *colormap);
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void VID_Shutdown (void);
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void VID_SetCaption (const char *text);
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#endif // __vid_h_
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