ref: 4c1435a0346ab111b5d9fec0abf5910952b7950e
dir: /model_bsp30.c/
#include "quakedef.h" int BSP_CalcSurfaceExtents(model_t *mod, msurface_t *s); int BSP30_LoadEntities(model_t *mod, byte *in, int sz) { char *p, *s, *e, path[32]; Wad *w; int maxw; mod->numwads = 0; if(sz == 0){ mod->entities = nil; return 0; } memcpy(mod->entities = Hunk_Alloc(sz), in, sz); if((s = strstr((char*)mod->entities, "\"wad\"")) == nil || (s = strchr(s+5, '"')) == nil || (e = strchr(s+1, '"')) == nil) return 0; maxw = 4; mod->wads = Hunk_Alloc(maxw * sizeof(*mod->wads)); for(s = s+1, p = s; s <= e; s++){ if(p != s && (*s == ';' || s == e)){ snprintf(path, sizeof(path), "%.*s", (int)(s-p), p); if((w = W_OpenWad(path)) != nil){ mod->wads = Arr_AllocExtra(mod->wads, &maxw, mod->numwads-maxw); mod->wads[mod->numwads++] = w; }else{ Con_Printf("BSP_LoadEntities: %s\n", lerr()); continue; } p = s+1; }else if(*s == '\\') p = s+1; } return 0; } int BSP30_LoadLighting(model_t *mod, byte *in, int sz) { if(sz == 0){ mod->lightdata = nil; return 0; } memcpy(mod->lightdata = Hunk_Alloc(sz), in, sz); return 0; } int BSP30_LoadFaces(model_t *mod, byte *in, int sz) { msurface_t *out; int i, surfnum; static const int elsz = 2+2+4+2+2+MAXLIGHTMAPS+4; if(sz % elsz){ werrstr("BSP_LoadFaces: funny lump size"); return -1; } mod->numsurfaces = sz / elsz; mod->surfaces = out = Hunk_Alloc(mod->numsurfaces * sizeof(*out)); for(surfnum = 0; surfnum < mod->numsurfaces; surfnum++, out++){ out->plane = mod->planes + le16u(in); out->flags = le16u(in) ? SURF_PLANEBACK : 0; out->firstedge = le32u(in); out->numedges = le16u(in); out->texinfo = mod->texinfo + le16u(in); if(BSP_CalcSurfaceExtents(mod, out) != 0) return -1; // lighting info memmove(out->styles, in, MAXLIGHTMAPS); in += MAXLIGHTMAPS; i = le32(in); if(i >= 0){ if(i % 3) Con_Printf("misaligned light samples: %d\n", i); else{ out->samples = mod->lightdata + i; } } // set the drawing flags flag if(strncmp(out->texinfo->texture->name, "sky", 3) == 0) out->flags |= SURF_DRAWSKY | SURF_DRAWTILED; else if(out->texinfo->texture->name[0] == '!'){ // turbulent out->flags |= SURF_DRAWTURB | SURF_DRAWTILED | SURF_TRANS; for(i = 0; i < 2; i++){ out->extents[i] = 16384; out->texturemins[i] = -8192; } }else if(out->texinfo->texture->name[0] == '{') out->flags |= SURF_TRANS | SURF_FENCE; } return 0; } int BSP30_LoadTextures(model_t *mod, byte *in, int sz) { int off, i, j, pixels, num, max, altmax, w, h, palsz; byte *p, *in0, *x; texture_t *tx, *tx2; texture_t *anims[10]; texture_t *altanims[10]; static const int elsz = 16+2*4+4*4; if(sz < 1){ mod->textures = nil; return 0; } if(sz < 4 || (sz % 4) != 0){ werrstr("funny lump size"); goto err; } in0 = in; mod->numtextures = le32(in); if(mod->numtextures*4 > sz-4){ werrstr("overflow? %d > %d", mod->numtextures*4, sz-4); goto err; } mod->textures = Hunk_Alloc(mod->numtextures * sizeof(*mod->textures)); for(i = 0; i < mod->numtextures; i++){ off = le32(in); if(off == -1) continue; if(off < 0 || off > sz-elsz){ werrstr("bad offset %d (sz %d)", off, sz); goto err; } p = in0+off+16; w = le32(p); h = le32(p); pixels = w*h*85/64; tx = Hunk_Alloc(sizeof(*tx) + pixels*sizeof(pixel_t)); strncpy(tx->name, (char*)in0+off, sizeof(tx->name)-1); tx->name[sizeof(tx->name)-1] = 0; for(j = 0; j < MIPLEVELS; j++) tx->offsets[j] = le32(p) - (16+2*4+4*4); mod->textures[i] = tx; tx->width = w; tx->height = h; if(tx->offsets[0] >= 0){ // the pixels immediately follow the structures x = p + pixels; if((palsz = le16(x)) > 0){ pal3torgbx(p, tx->pixels, pixels, x, palsz); if(tx->name[0] == '{'){ /* last color is transparent */ for(j = 0; j < pixels; j++){ if(p[j] == palsz-1) tx->pixels[j] = 0; } } if(strchr(tx->name, '~') != nil){ /* last 32 colors are fullbright */ for(j = 0; j < pixels; j++){ if(p[j] >= 256-32) tx->pixels[j] &= 0xffffff; } } } }else{ // alternative: outside, in a wad for(j = 0; j < mod->numwads; j++){ if(W_ReadMipTex(mod->wads[j], tx->name, tx) >= 0) break; } if(j >= mod->numwads) Con_Printf("missing texture: %s\n", tx->name); } if(strncmp(tx->name, "sky", 3) == 0) R_InitSky(nil); /* FIXME(sigrid): skybox */ } // sequence the animations for(i = 0; i < mod->numtextures; i++){ tx = mod->textures[i]; if(!tx || tx->name[0] != '+') continue; if(tx->anim_next) continue; // already sequenced // find the number of frames in the animation memset(anims, 0, sizeof(anims)); memset(altanims, 0, sizeof(altanims)); max = tx->name[1]; if(max >= 'a' && max <= 'z') max -= 'a' - 'A'; if(max >= '0' && max <= '9'){ max -= '0'; altmax = 0; anims[max++] = tx; }else if(max >= 'A' && max <= 'J'){ altmax = max - 'A'; max = 0; altanims[altmax++] = tx; }else{ badanim: werrstr("bad animating texture: %s", tx->name); goto err; } for(j = i+1; j < mod->numtextures; j++){ tx2 = mod->textures[j]; if(!tx2 || tx2->name[0] != '+') continue; if(strcmp(tx2->name+2, tx->name+2) != 0) continue; num = tx2->name[1]; if(num >= 'a' && num <= 'z') num -= 'a' - 'A'; if(num >= '0' && num <= '9'){ num -= '0'; anims[num] = tx2; if(num+1 > max) max = num + 1; }else if(num >= 'A' && num <= 'J'){ num = num - 'A'; altanims[num] = tx2; if(num+1 > altmax) altmax = num+1; }else{ goto badanim; } } #define ANIM_CYCLE 2 // link them all together for(j = 0; j < max; j++){ tx2 = anims[j]; if(!tx2){ badframe: werrstr("missing frame %d of %s", j, tx->name); goto err; } tx2->anim_total = max * ANIM_CYCLE; tx2->anim_min = j * ANIM_CYCLE; tx2->anim_max = (j+1) * ANIM_CYCLE; tx2->anim_next = anims[(j+1) % max]; if(altmax) tx2->alternate_anims = altanims[0]; } for(j = 0; j < altmax; j++){ tx2 = altanims[j]; if(!tx2) goto badframe; tx2->anim_total = altmax * ANIM_CYCLE; tx2->anim_min = j * ANIM_CYCLE; tx2->anim_max = (j+1) * ANIM_CYCLE; tx2->anim_next = altanims[(j+1) % altmax]; if(max) tx2->alternate_anims = anims[0]; } } return 0; err: werrstr("BSP_LoadTextures: %s", lerr()); return -1; }