/* gl_model.c model loading and caching 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: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA */ static const char rcsid[] = "$Id$"; // models are the only shared resource between a client and server running // on the same machine. #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_STRING_H # include #endif #ifdef HAVE_STRINGS_H # include #endif #include "compat.h" #include "QF/model.h" #include "QF/qendian.h" #include "QF/skin.h" #include "QF/sys.h" #include "QF/GL/qf_textures.h" byte player_8bit_texels[320 * 200]; extern model_t *loadmodel; extern char loadname[]; /* ALIAS MODELS */ extern aliashdr_t *pheader; extern stvert_t stverts[MAXALIASVERTS]; extern mtriangle_t triangles[MAXALIASTRIS]; // a pose is a single set of vertexes. a frame may be // an animating sequence of poses extern trivertx_t *poseverts[MAXALIASFRAMES]; extern int posenum; //========================================================= /* Mod_FloodFillSkin Fill background pixels so mipmapping doesn't have haloes - Ed */ typedef struct { short x, y; } floodfill_t; extern unsigned int d_8to24table[]; // must be a power of 2 #define FLOODFILL_FIFO_SIZE 0x1000 #define FLOODFILL_FIFO_MASK (FLOODFILL_FIFO_SIZE - 1) #define FLOODFILL_STEP( off, dx, dy ) \ { \ if (pos[off] == fillcolor) \ { \ pos[off] = 255; \ fifo[inpt].x = x + (dx), fifo[inpt].y = y + (dy); \ inpt = (inpt + 1) & FLOODFILL_FIFO_MASK; \ } \ else if (pos[off] != 255) fdc = pos[off]; \ } void Mod_FloodFillSkin (byte * skin, int skinwidth, int skinheight) { byte fillcolor = *skin; // assume this is the pixel to fill floodfill_t fifo[FLOODFILL_FIFO_SIZE]; int inpt = 0, outpt = 0; int filledcolor = -1; int i; if (filledcolor == -1) { filledcolor = 0; // attempt to find opaque black for (i = 0; i < 256; ++i) if (d_8to24table[i] == (255 << 0)) // alpha 1.0 { filledcolor = i; break; } } // can't fill to filled color or transparent color (used as visited marker) if ((fillcolor == filledcolor) || (fillcolor == 255)) { //printf ("not filling skin from %d to %d\n", fillcolor, filledcolor); return; } fifo[inpt].x = 0, fifo[inpt].y = 0; inpt = (inpt + 1) & FLOODFILL_FIFO_MASK; while (outpt != inpt) { int x = fifo[outpt].x, y = fifo[outpt].y; int fdc = filledcolor; byte *pos = &skin[x + skinwidth * y]; outpt = (outpt + 1) & FLOODFILL_FIFO_MASK; if (x > 0) FLOODFILL_STEP (-1, -1, 0); if (x < skinwidth - 1) FLOODFILL_STEP (1, 1, 0); if (y > 0) FLOODFILL_STEP (-skinwidth, 0, -1); if (y < skinheight - 1) FLOODFILL_STEP (skinwidth, 0, 1); skin[x + skinwidth * y] = fdc; } } int Mod_Fullbright (byte * skin, int width, int height, char *name); void * Mod_LoadSkin (byte * skin, int skinsize, int snum, int gnum, qboolean group) { char name[32]; int fbtexnum; Mod_FloodFillSkin (skin, pheader->mdl.skinwidth, pheader->mdl.skinheight); // save 8 bit texels for the player model to remap if (!strcmp (loadmodel->name, "progs/player.mdl")) { byte *texels; if (skinsize > sizeof (player_8bit_texels)) Sys_Error ("Player skin too large"); texels = Hunk_AllocName (skinsize, loadname); pheader->texels[snum] = texels - (byte *) pheader; memcpy (texels, skin, skinsize); memcpy (player_8bit_texels, skin, skinsize); } if (group) { snprintf (name, sizeof (name), "fb_%s_%i_%i", loadmodel->name, snum, gnum); } else { snprintf (name, sizeof (name), "fb_%s_%i", loadmodel->name, snum); } fbtexnum = Mod_Fullbright (skin + 1, pheader->mdl.skinwidth, pheader->mdl.skinheight, name); if ((loadmodel->hasfullbrights = (fbtexnum))) { pheader->gl_fb_texturenum[snum][gnum] = fbtexnum; } if (group) { snprintf (name, sizeof (name), "%s_%i_%i", loadmodel->name, snum, gnum); } else { snprintf (name, sizeof (name), "%s_%i", loadmodel->name, snum); } pheader->gl_texturenum[snum][gnum] = GL_LoadTexture (name, pheader->mdl.skinwidth, pheader->mdl.skinheight, skin, true, false, 1); // alpha param was true for non group skins return skin + skinsize; } void * Mod_LoadAllSkins (int numskins, daliasskintype_t *pskintype, int *pskinindex) { int i, j, k; int skinsize; byte *skin; daliasskingroup_t *pinskingroup; int groupskins; daliasskininterval_t *pinskinintervals; if (numskins < 1 || numskins > MAX_SKINS) Sys_Error ("Mod_LoadAliasModel: Invalid # of skins: %d\n", numskins); skinsize = pheader->mdl.skinwidth * pheader->mdl.skinheight; for (i = 0; i < numskins; i++) { if (pskintype->type == ALIAS_SKIN_SINGLE) { skin = (byte *) (pskintype + 1); skin = Mod_LoadSkin (skin, skinsize, i, 0, false); for (j = 1; j < 4; j++) { pheader->gl_texturenum[i][j] = pheader->gl_texturenum[i][j - 1]; pheader->gl_fb_texturenum[i][j] = pheader->gl_fb_texturenum[i][j - 1]; } } else { // animating skin group. yuck. // Sys_Printf("Animating Skin Group, if you get this message // please notify warp@debian.org\n"); pskintype++; pinskingroup = (daliasskingroup_t *) pskintype; groupskins = LittleLong (pinskingroup->numskins); pinskinintervals = (daliasskininterval_t *) (pinskingroup + 1); pskintype = (void *) (pinskinintervals + groupskins); skin = (byte *) pskintype; for (j = 0; j < groupskins; j++) { skin = Mod_LoadSkin (skin, skinsize, i, j & 3, true); } k = j; for ( /* */ ; j < 4; j++) { pheader->gl_texturenum[i][j] = pheader->gl_texturenum[i][j - k]; pheader->gl_fb_texturenum[i][j] = pheader->gl_fb_texturenum[i][j - k]; } } pskintype = (daliasskintype_t *) skin; } return pskintype; } void * Mod_LoadAliasFrame (void *pin, maliasframedesc_t *frame) { trivertx_t *pinframe; int i; daliasframe_t *pdaliasframe; pdaliasframe = (daliasframe_t *) pin; strcpy (frame->name, pdaliasframe->name); frame->firstpose = posenum; frame->numposes = 1; for (i = 0; i < 3; i++) { // byte values, don't worry about endianness frame->bboxmin.v[i] = pdaliasframe->bboxmin.v[i]; frame->bboxmax.v[i] = pdaliasframe->bboxmax.v[i]; } pinframe = (trivertx_t *) (pdaliasframe + 1); poseverts[posenum] = pinframe; posenum++; pinframe += pheader->mdl.numverts; return (void *) pinframe; } void * Mod_LoadAliasGroup (void *pin, maliasframedesc_t *frame) { daliasgroup_t *pingroup; int i, numframes; daliasinterval_t *pin_intervals; void *ptemp; pingroup = (daliasgroup_t *) pin; numframes = LittleLong (pingroup->numframes); frame->firstpose = posenum; frame->numposes = numframes; for (i = 0; i < 3; i++) { // these are byte values, so we don't have to worry about endianness frame->bboxmin.v[i] = pingroup->bboxmin.v[i]; frame->bboxmax.v[i] = pingroup->bboxmax.v[i]; } pin_intervals = (daliasinterval_t *) (pingroup + 1); frame->interval = LittleFloat (pin_intervals->interval); pin_intervals += numframes; ptemp = (void *) pin_intervals; for (i = 0; i < numframes; i++) { poseverts[posenum] = (trivertx_t *) ((daliasframe_t *) ptemp + 1); posenum++; ptemp = (trivertx_t *) ((daliasframe_t *) ptemp + 1) + pheader->mdl.numverts; } return ptemp; }