diff options
Diffstat (limited to 'WinQuake/d_surf.c')
| -rw-r--r-- | WinQuake/d_surf.c | 670 |
1 files changed, 335 insertions, 335 deletions
diff --git a/WinQuake/d_surf.c b/WinQuake/d_surf.c index b09c5f8..ac3d844 100644 --- a/WinQuake/d_surf.c +++ b/WinQuake/d_surf.c @@ -1,335 +1,335 @@ -/* -Copyright (C) 1996-1997 Id Software, Inc. - -This program is free software; you can redistribute it and/or -modify it under the terms of the GNU General Public License -as published by the Free Software Foundation; either version 2 -of the License, or (at your option) any later version. - -This program 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 General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - -*/ -// d_surf.c: rasterization driver surface heap manager - -#include "quakedef.h" -#include "d_local.h" -#include "r_local.h" - -float surfscale; -qboolean r_cache_thrash; // set if surface cache is thrashing - -int sc_size; -surfcache_t *sc_rover, *sc_base; - -#define GUARDSIZE 4 - - -int D_SurfaceCacheForRes (int width, int height) -{ - int size, pix; - - if (COM_CheckParm ("-surfcachesize")) - { - size = Q_atoi(com_argv[COM_CheckParm("-surfcachesize")+1]) * 1024; - return size; - } - - size = SURFCACHE_SIZE_AT_320X200; - - pix = width*height; - if (pix > 64000) - size += (pix-64000)*3; - - - return size; -} - -void D_CheckCacheGuard (void) -{ - byte *s; - int i; - - s = (byte *)sc_base + sc_size; - for (i=0 ; i<GUARDSIZE ; i++) - if (s[i] != (byte)i) - Sys_Error ("D_CheckCacheGuard: failed"); -} - -void D_ClearCacheGuard (void) -{ - byte *s; - int i; - - s = (byte *)sc_base + sc_size; - for (i=0 ; i<GUARDSIZE ; i++) - s[i] = (byte)i; -} - - -/* -================ -D_InitCaches - -================ -*/ -void D_InitCaches (void *buffer, int size) -{ - - if (!msg_suppress_1) - Con_Printf ("%ik surface cache\n", size/1024); - - sc_size = size - GUARDSIZE; - sc_base = (surfcache_t *)buffer; - sc_rover = sc_base; - - sc_base->next = NULL; - sc_base->owner = NULL; - sc_base->size = sc_size; - - D_ClearCacheGuard (); -} - - -/* -================== -D_FlushCaches -================== -*/ -void D_FlushCaches (void) -{ - surfcache_t *c; - - if (!sc_base) - return; - - for (c = sc_base ; c ; c = c->next) - { - if (c->owner) - *c->owner = NULL; - } - - sc_rover = sc_base; - sc_base->next = NULL; - sc_base->owner = NULL; - sc_base->size = sc_size; -} - -/* -================= -D_SCAlloc -================= -*/ -surfcache_t *D_SCAlloc (int width, int size) -{ - surfcache_t *new; - qboolean wrapped_this_time; - - if ((width < 0) || (width > 256)) - Sys_Error ("D_SCAlloc: bad cache width %d\n", width); - - if ((size <= 0) || (size > 0x10000)) - Sys_Error ("D_SCAlloc: bad cache size %d\n", size); - - size = (int)&((surfcache_t *)0)->data[size]; - size = (size + 3) & ~3; - if (size > sc_size) - Sys_Error ("D_SCAlloc: %i > cache size",size); - -// if there is not size bytes after the rover, reset to the start - wrapped_this_time = false; - - if ( !sc_rover || (byte *)sc_rover - (byte *)sc_base > sc_size - size) - { - if (sc_rover) - { - wrapped_this_time = true; - } - sc_rover = sc_base; - } - -// colect and free surfcache_t blocks until the rover block is large enough - new = sc_rover; - if (sc_rover->owner) - *sc_rover->owner = NULL; - - while (new->size < size) - { - // free another - sc_rover = sc_rover->next; - if (!sc_rover) - Sys_Error ("D_SCAlloc: hit the end of memory"); - if (sc_rover->owner) - *sc_rover->owner = NULL; - - new->size += sc_rover->size; - new->next = sc_rover->next; - } - -// create a fragment out of any leftovers - if (new->size - size > 256) - { - sc_rover = (surfcache_t *)( (byte *)new + size); - sc_rover->size = new->size - size; - sc_rover->next = new->next; - sc_rover->width = 0; - sc_rover->owner = NULL; - new->next = sc_rover; - new->size = size; - } - else - sc_rover = new->next; - - new->width = width; -// DEBUG - if (width > 0) - new->height = (size - sizeof(*new) + sizeof(new->data)) / width; - - new->owner = NULL; // should be set properly after return - - if (d_roverwrapped) - { - if (wrapped_this_time || (sc_rover >= d_initial_rover)) - r_cache_thrash = true; - } - else if (wrapped_this_time) - { - d_roverwrapped = true; - } - -D_CheckCacheGuard (); // DEBUG - return new; -} - - -/* -================= -D_SCDump -================= -*/ -void D_SCDump (void) -{ - surfcache_t *test; - - for (test = sc_base ; test ; test = test->next) - { - if (test == sc_rover) - Sys_Printf ("ROVER:\n"); - printf ("%p : %i bytes %i width\n",test, test->size, test->width); - } -} - -//============================================================================= - -// if the num is not a power of 2, assume it will not repeat - -int MaskForNum (int num) -{ - if (num==128) - return 127; - if (num==64) - return 63; - if (num==32) - return 31; - if (num==16) - return 15; - return 255; -} - -int D_log2 (int num) -{ - int c; - - c = 0; - - while (num>>=1) - c++; - return c; -} - -//============================================================================= - -/* -================ -D_CacheSurface -================ -*/ -surfcache_t *D_CacheSurface (msurface_t *surface, int miplevel) -{ - surfcache_t *cache; - -// -// if the surface is animating or flashing, flush the cache -// - r_drawsurf.texture = R_TextureAnimation (surface->texinfo->texture); - r_drawsurf.lightadj[0] = d_lightstylevalue[surface->styles[0]]; - r_drawsurf.lightadj[1] = d_lightstylevalue[surface->styles[1]]; - r_drawsurf.lightadj[2] = d_lightstylevalue[surface->styles[2]]; - r_drawsurf.lightadj[3] = d_lightstylevalue[surface->styles[3]]; - -// -// see if the cache holds apropriate data -// - cache = surface->cachespots[miplevel]; - - if (cache && !cache->dlight && surface->dlightframe != r_framecount - && cache->texture == r_drawsurf.texture - && cache->lightadj[0] == r_drawsurf.lightadj[0] - && cache->lightadj[1] == r_drawsurf.lightadj[1] - && cache->lightadj[2] == r_drawsurf.lightadj[2] - && cache->lightadj[3] == r_drawsurf.lightadj[3] ) - return cache; - -// -// determine shape of surface -// - surfscale = 1.0 / (1<<miplevel); - r_drawsurf.surfmip = miplevel; - r_drawsurf.surfwidth = surface->extents[0] >> miplevel; - r_drawsurf.rowbytes = r_drawsurf.surfwidth; - r_drawsurf.surfheight = surface->extents[1] >> miplevel; - -// -// allocate memory if needed -// - if (!cache) // if a texture just animated, don't reallocate it - { - cache = D_SCAlloc (r_drawsurf.surfwidth, - r_drawsurf.surfwidth * r_drawsurf.surfheight); - surface->cachespots[miplevel] = cache; - cache->owner = &surface->cachespots[miplevel]; - cache->mipscale = surfscale; - } - - if (surface->dlightframe == r_framecount) - cache->dlight = 1; - else - cache->dlight = 0; - - r_drawsurf.surfdat = (pixel_t *)cache->data; - - cache->texture = r_drawsurf.texture; - cache->lightadj[0] = r_drawsurf.lightadj[0]; - cache->lightadj[1] = r_drawsurf.lightadj[1]; - cache->lightadj[2] = r_drawsurf.lightadj[2]; - cache->lightadj[3] = r_drawsurf.lightadj[3]; - -// -// draw and light the surface texture -// - r_drawsurf.surf = surface; - - c_surf++; - R_DrawSurface (); - - return surface->cachespots[miplevel]; -} - - +/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+// d_surf.c: rasterization driver surface heap manager
+
+#include "quakedef.h"
+#include "d_local.h"
+#include "r_local.h"
+
+float surfscale;
+qboolean r_cache_thrash; // set if surface cache is thrashing
+
+int sc_size;
+surfcache_t *sc_rover, *sc_base;
+
+#define GUARDSIZE 4
+
+
+int D_SurfaceCacheForRes (int width, int height)
+{
+ int size, pix;
+
+ if (COM_CheckParm ("-surfcachesize"))
+ {
+ size = Q_atoi(com_argv[COM_CheckParm("-surfcachesize")+1]) * 1024;
+ return size;
+ }
+
+ size = SURFCACHE_SIZE_AT_320X200;
+
+ pix = width*height;
+ if (pix > 64000)
+ size += (pix-64000)*3;
+
+
+ return size;
+}
+
+void D_CheckCacheGuard (void)
+{
+ byte *s;
+ int i;
+
+ s = (byte *)sc_base + sc_size;
+ for (i=0 ; i<GUARDSIZE ; i++)
+ if (s[i] != (byte)i)
+ Sys_Error ("D_CheckCacheGuard: failed");
+}
+
+void D_ClearCacheGuard (void)
+{
+ byte *s;
+ int i;
+
+ s = (byte *)sc_base + sc_size;
+ for (i=0 ; i<GUARDSIZE ; i++)
+ s[i] = (byte)i;
+}
+
+
+/*
+================
+D_InitCaches
+
+================
+*/
+void D_InitCaches (void *buffer, int size)
+{
+
+ if (!msg_suppress_1)
+ Con_Printf ("%ik surface cache\n", size/1024);
+
+ sc_size = size - GUARDSIZE;
+ sc_base = (surfcache_t *)buffer;
+ sc_rover = sc_base;
+
+ sc_base->next = NULL;
+ sc_base->owner = NULL;
+ sc_base->size = sc_size;
+
+ D_ClearCacheGuard ();
+}
+
+
+/*
+==================
+D_FlushCaches
+==================
+*/
+void D_FlushCaches (void)
+{
+ surfcache_t *c;
+
+ if (!sc_base)
+ return;
+
+ for (c = sc_base ; c ; c = c->next)
+ {
+ if (c->owner)
+ *c->owner = NULL;
+ }
+
+ sc_rover = sc_base;
+ sc_base->next = NULL;
+ sc_base->owner = NULL;
+ sc_base->size = sc_size;
+}
+
+/*
+=================
+D_SCAlloc
+=================
+*/
+surfcache_t *D_SCAlloc (int width, int size)
+{
+ surfcache_t *new;
+ qboolean wrapped_this_time;
+
+ if ((width < 0) || (width > 256))
+ Sys_Error ("D_SCAlloc: bad cache width %d\n", width);
+
+ if ((size <= 0) || (size > 0x10000))
+ Sys_Error ("D_SCAlloc: bad cache size %d\n", size);
+
+ size = (int)&((surfcache_t *)0)->data[size];
+ size = (size + 3) & ~3;
+ if (size > sc_size)
+ Sys_Error ("D_SCAlloc: %i > cache size",size);
+
+// if there is not size bytes after the rover, reset to the start
+ wrapped_this_time = false;
+
+ if ( !sc_rover || (byte *)sc_rover - (byte *)sc_base > sc_size - size)
+ {
+ if (sc_rover)
+ {
+ wrapped_this_time = true;
+ }
+ sc_rover = sc_base;
+ }
+
+// colect and free surfcache_t blocks until the rover block is large enough
+ new = sc_rover;
+ if (sc_rover->owner)
+ *sc_rover->owner = NULL;
+
+ while (new->size < size)
+ {
+ // free another
+ sc_rover = sc_rover->next;
+ if (!sc_rover)
+ Sys_Error ("D_SCAlloc: hit the end of memory");
+ if (sc_rover->owner)
+ *sc_rover->owner = NULL;
+
+ new->size += sc_rover->size;
+ new->next = sc_rover->next;
+ }
+
+// create a fragment out of any leftovers
+ if (new->size - size > 256)
+ {
+ sc_rover = (surfcache_t *)( (byte *)new + size);
+ sc_rover->size = new->size - size;
+ sc_rover->next = new->next;
+ sc_rover->width = 0;
+ sc_rover->owner = NULL;
+ new->next = sc_rover;
+ new->size = size;
+ }
+ else
+ sc_rover = new->next;
+
+ new->width = width;
+// DEBUG
+ if (width > 0)
+ new->height = (size - sizeof(*new) + sizeof(new->data)) / width;
+
+ new->owner = NULL; // should be set properly after return
+
+ if (d_roverwrapped)
+ {
+ if (wrapped_this_time || (sc_rover >= d_initial_rover))
+ r_cache_thrash = true;
+ }
+ else if (wrapped_this_time)
+ {
+ d_roverwrapped = true;
+ }
+
+D_CheckCacheGuard (); // DEBUG
+ return new;
+}
+
+
+/*
+=================
+D_SCDump
+=================
+*/
+void D_SCDump (void)
+{
+ surfcache_t *test;
+
+ for (test = sc_base ; test ; test = test->next)
+ {
+ if (test == sc_rover)
+ Sys_Printf ("ROVER:\n");
+ printf ("%p : %i bytes %i width\n",test, test->size, test->width);
+ }
+}
+
+//=============================================================================
+
+// if the num is not a power of 2, assume it will not repeat
+
+int MaskForNum (int num)
+{
+ if (num==128)
+ return 127;
+ if (num==64)
+ return 63;
+ if (num==32)
+ return 31;
+ if (num==16)
+ return 15;
+ return 255;
+}
+
+int D_log2 (int num)
+{
+ int c;
+
+ c = 0;
+
+ while (num>>=1)
+ c++;
+ return c;
+}
+
+//=============================================================================
+
+/*
+================
+D_CacheSurface
+================
+*/
+surfcache_t *D_CacheSurface (msurface_t *surface, int miplevel)
+{
+ surfcache_t *cache;
+
+//
+// if the surface is animating or flashing, flush the cache
+//
+ r_drawsurf.texture = R_TextureAnimation (surface->texinfo->texture);
+ r_drawsurf.lightadj[0] = d_lightstylevalue[surface->styles[0]];
+ r_drawsurf.lightadj[1] = d_lightstylevalue[surface->styles[1]];
+ r_drawsurf.lightadj[2] = d_lightstylevalue[surface->styles[2]];
+ r_drawsurf.lightadj[3] = d_lightstylevalue[surface->styles[3]];
+
+//
+// see if the cache holds apropriate data
+//
+ cache = surface->cachespots[miplevel];
+
+ if (cache && !cache->dlight && surface->dlightframe != r_framecount
+ && cache->texture == r_drawsurf.texture
+ && cache->lightadj[0] == r_drawsurf.lightadj[0]
+ && cache->lightadj[1] == r_drawsurf.lightadj[1]
+ && cache->lightadj[2] == r_drawsurf.lightadj[2]
+ && cache->lightadj[3] == r_drawsurf.lightadj[3] )
+ return cache;
+
+//
+// determine shape of surface
+//
+ surfscale = 1.0 / (1<<miplevel);
+ r_drawsurf.surfmip = miplevel;
+ r_drawsurf.surfwidth = surface->extents[0] >> miplevel;
+ r_drawsurf.rowbytes = r_drawsurf.surfwidth;
+ r_drawsurf.surfheight = surface->extents[1] >> miplevel;
+
+//
+// allocate memory if needed
+//
+ if (!cache) // if a texture just animated, don't reallocate it
+ {
+ cache = D_SCAlloc (r_drawsurf.surfwidth,
+ r_drawsurf.surfwidth * r_drawsurf.surfheight);
+ surface->cachespots[miplevel] = cache;
+ cache->owner = &surface->cachespots[miplevel];
+ cache->mipscale = surfscale;
+ }
+
+ if (surface->dlightframe == r_framecount)
+ cache->dlight = 1;
+ else
+ cache->dlight = 0;
+
+ r_drawsurf.surfdat = (pixel_t *)cache->data;
+
+ cache->texture = r_drawsurf.texture;
+ cache->lightadj[0] = r_drawsurf.lightadj[0];
+ cache->lightadj[1] = r_drawsurf.lightadj[1];
+ cache->lightadj[2] = r_drawsurf.lightadj[2];
+ cache->lightadj[3] = r_drawsurf.lightadj[3];
+
+//
+// draw and light the surface texture
+//
+ r_drawsurf.surf = surface;
+
+ c_surf++;
+ R_DrawSurface ();
+
+ return surface->cachespots[miplevel];
+}
+
+
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