mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-27 06:34:11 +00:00
b82a353a20
Its guts have been moved to D_Init temporarily while I work on the frame buffer design. This is actually a big part of that work as it moves most of the frame buffer creation into the one place, making it easier to ensure I get all the sub-buffers and caches created.
126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
/*
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d_init.c
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rasterization driver initialization
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "QF/cvar.h"
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#include "QF/render.h"
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#include "compat.h"
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#include "d_local.h"
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#include "r_internal.h"
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#include "vid_internal.h"
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#define NUM_MIPS 4
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surfcache_t *d_initial_rover;
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qboolean d_roverwrapped;
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int d_minmip;
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float d_scalemip[NUM_MIPS - 1];
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static float basemip[NUM_MIPS - 1] = { 1.0, 0.5 * 0.8, 0.25 * 0.8 };
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void (*d_drawspans) (espan_t *pspan);
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void
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D_Init (void)
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{
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r_drawpolys = false;
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r_worldpolysbacktofront = false;
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r_recursiveaffinetriangles = true;
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viddef_t *vid = vr_data.vid;
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vid->vid_internal->flush_caches = D_FlushCaches;
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int buffersize = vid->rowbytes * vid->height;
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int zbuffersize = vid->width * vid->height * sizeof (*vid->zbuffer);
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int cachesize = D_SurfaceCacheForRes (vid->width, vid->height);
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if (vid->zbuffer) {
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free (vid->zbuffer);
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vid->zbuffer = 0;
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}
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if (vid->surfcache) {
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D_FlushCaches (0);
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free (vid->surfcache);
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vid->surfcache = 0;
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}
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if (vid->vid_internal->init_buffers) {
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vid->vid_internal->init_buffers (vid->vid_internal->data);
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} else {
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free (vid->buffer);
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vid->buffer = calloc (buffersize, 1);
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}
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vid->zbuffer = calloc (zbuffersize, 1);
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vid->surfcache = calloc (cachesize, 1);
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D_InitCaches (vid->surfcache, cachesize);
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}
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void
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D_TurnZOn (void)
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{
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// not needed for software version
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}
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void
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D_SetupFrame (void)
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{
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int i;
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if (r_dowarp)
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d_viewbuffer = r_warpbuffer;
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else
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d_viewbuffer = vid.buffer;
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if (r_dowarp)
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screenwidth = WARP_WIDTH;
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else
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screenwidth = vid.rowbytes;
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d_roverwrapped = false;
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d_initial_rover = sc_rover;
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d_minmip = bound (0, d_mipcap->value, 3);
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for (i = 0; i < (NUM_MIPS - 1); i++)
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d_scalemip[i] = basemip[i] * d_mipscale->value;
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d_drawspans = D_DrawSpans8;
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d_skyoffs = r_skytime * r_skyspeed;
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}
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void
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D_UpdateRects (vrect_t *prect)
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{
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// the software driver draws these directly to the vid buffer
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}
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