/* =========================================================================== Copyright (C) 1999-2005 Id Software, Inc. Copyright (C) 2000-2013 Darklegion Development Copyright (C) 2015-2019 GrangerHub This file is part of Tremulous. Tremulous 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 3 of the License, or (at your option) any later version. Tremulous 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 Tremulous; if not, see =========================================================================== */ // tr_models.c -- model loading and caching #include "tr_local.h" #define LL(x) x=LittleLong(x) static bool R_LoadMD3(model_t *mod, int lod, void *buffer, const char *name ); static bool R_LoadMDR(model_t *mod, void *buffer, int filesize, const char *name ); /* ==================== R_RegisterMD3 ==================== */ qhandle_t R_RegisterMD3(const char *name, model_t *mod) { union { unsigned *u; void *v; } buf; int lod; int ident; bool loaded = false; int numLoaded; char filename[MAX_QPATH], namebuf[MAX_QPATH+20]; char *fext, defex[] = "md3"; numLoaded = 0; strcpy(filename, name); fext = strchr(filename, '.'); if(!fext) fext = defex; else { *fext = '\0'; fext++; } for (lod = MD3_MAX_LODS - 1 ; lod >= 0 ; lod--) { if(lod) Com_sprintf(namebuf, sizeof(namebuf), "%s_%d.%s", filename, lod, fext); else Com_sprintf(namebuf, sizeof(namebuf), "%s.%s", filename, fext); ri.FS_ReadFile( namebuf, &buf.v ); if(!buf.u) continue; ident = LittleLong(* (unsigned *) buf.u); if (ident == MD3_IDENT) loaded = R_LoadMD3(mod, lod, buf.u, name); else ri.Printf(PRINT_WARNING,"R_RegisterMD3: unknown fileid for %s\n", name); ri.FS_FreeFile(buf.v); if(loaded) { mod->numLods++; numLoaded++; } else break; } if(numLoaded) { // duplicate into higher lod spots that weren't // loaded, in case the user changes r_lodbias on the fly for(lod--; lod >= 0; lod--) { mod->numLods++; mod->md3[lod] = mod->md3[lod + 1]; } return mod->index; } ri.Printf(PRINT_DEVELOPER, "R_RegisterMD3: couldn't load %s\n", name); mod->type = MOD_BAD; return 0; } /* ==================== R_RegisterMDR ==================== */ qhandle_t R_RegisterMDR(const char *name, model_t *mod) { union { unsigned *u; void *v; } buf; int ident; bool loaded = false; int filesize; filesize = ri.FS_ReadFile(name, (void **) &buf.v); if(!buf.u) { mod->type = MOD_BAD; return 0; } ident = LittleLong(*(unsigned *)buf.u); if(ident == MDR_IDENT) loaded = R_LoadMDR(mod, buf.u, filesize, name); ri.FS_FreeFile (buf.v); if(!loaded) { ri.Printf(PRINT_WARNING,"R_RegisterMDR: couldn't load mdr file %s\n", name); mod->type = MOD_BAD; return 0; } return mod->index; } /* ==================== R_RegisterIQM ==================== */ qhandle_t R_RegisterIQM(const char *name, model_t *mod) { union { unsigned *u; void *v; } buf; bool loaded = false; int filesize; filesize = ri.FS_ReadFile(name, (void **) &buf.v); if(!buf.u) { mod->type = MOD_BAD; return 0; } loaded = R_LoadIQM(mod, buf.u, filesize, name); ri.FS_FreeFile (buf.v); if(!loaded) { ri.Printf(PRINT_WARNING,"R_RegisterIQM: couldn't load iqm file %s\n", name); mod->type = MOD_BAD; return 0; } return mod->index; } struct modelExtToLoaderMap_t { const char *ext; qhandle_t (*ModelLoader)( const char *, model_t * ); }; // Note that the ordering indicates the order of preference used // when there are multiple models of different formats available static modelExtToLoaderMap_t modelLoaders[ ] = { { "iqm", R_RegisterIQM }, { "mdr", R_RegisterMDR }, { "md3", R_RegisterMD3 } }; static int numModelLoaders = ARRAY_LEN(modelLoaders); //=============================================================================== /* ** R_GetModelByHandle */ model_t *R_GetModelByHandle( qhandle_t index ) { model_t *mod; // out of range gets the defualt model if ( index < 1 || index >= tr.numModels ) { return tr.models[0]; } mod = tr.models[index]; return mod; } //=============================================================================== /* ** R_AllocModel */ model_t *R_AllocModel( void ) { model_t *mod; if ( tr.numModels == MAX_MOD_KNOWN ) { return NULL; } mod = (model_t*)ri.Hunk_Alloc( sizeof( *tr.models[tr.numModels] ), h_low ); mod->index = tr.numModels; tr.models[tr.numModels] = mod; tr.numModels++; return mod; } /* ==================== RE_RegisterModel Loads in a model for the given name Zero will be returned if the model fails to load. An entry will be retained for failed models as an optimization to prevent disk rescanning if they are asked for again. ==================== */ qhandle_t RE_RegisterModel( const char *name ) { model_t *mod; qhandle_t hModel; bool orgNameFailed = false; int orgLoader = -1; int i; char localName[ MAX_QPATH ]; const char *ext; char altName[ MAX_QPATH ]; if ( !name || !name[0] ) { ri.Printf( PRINT_ALL, "RE_RegisterModel: NULL name\n" ); return 0; } if ( strlen( name ) >= MAX_QPATH ) { ri.Printf( PRINT_ALL, "Model name exceeds MAX_QPATH\n" ); return 0; } // // search the currently loaded models // for ( hModel = 1 ; hModel < tr.numModels; hModel++ ) { mod = tr.models[hModel]; if ( !strcmp( mod->name, name ) ) { if( mod->type == MOD_BAD ) { return 0; } return hModel; } } // allocate a new model_t if ( ( mod = R_AllocModel() ) == NULL ) { ri.Printf( PRINT_WARNING, "RE_RegisterModel: R_AllocModel() failed for '%s'\n", name); return 0; } // only set the name after the model has been successfully loaded Q_strncpyz( mod->name, name, sizeof( mod->name ) ); R_IssuePendingRenderCommands(); mod->type = MOD_BAD; mod->numLods = 0; // // load the files // Q_strncpyz( localName, name, MAX_QPATH ); ext = COM_GetExtension( localName ); if( *ext ) { // Look for the correct loader and use it for( i = 0; i < numModelLoaders; i++ ) { if( !Q_stricmp( ext, modelLoaders[ i ].ext ) ) { // Load hModel = modelLoaders[ i ].ModelLoader( localName, mod ); break; } } // A loader was found if( i < numModelLoaders ) { if( !hModel ) { // Loader failed, most likely because the file isn't there; // try again without the extension orgNameFailed = true; orgLoader = i; COM_StripExtension( name, localName, MAX_QPATH ); } else { // Something loaded return mod->index; } } } // Try and find a suitable match using all // the model formats supported for( i = 0; i < numModelLoaders; i++ ) { if (i == orgLoader) continue; Com_sprintf( altName, sizeof (altName), "%s.%s", localName, modelLoaders[ i ].ext ); // Load hModel = modelLoaders[ i ].ModelLoader( altName, mod ); if( hModel ) { if( orgNameFailed ) { ri.Printf( PRINT_DEVELOPER, "WARNING: %s not present, using %s instead\n", name, altName ); } break; } } return hModel; } /* ================= R_LoadMD3 ================= */ static bool R_LoadMD3 (model_t *mod, int lod, void *buffer, const char *mod_name ) { int i, j; md3Header_t *pinmodel; md3Frame_t *frame; md3Surface_t *surf; md3Shader_t *shader; md3Triangle_t *tri; md3St_t *st; md3XyzNormal_t *xyz; md3Tag_t *tag; int version; int size; pinmodel = (md3Header_t *)buffer; version = LittleLong (pinmodel->version); if (version != MD3_VERSION) { ri.Printf( PRINT_WARNING, "R_LoadMD3: %s has wrong version (%i should be %i)\n", mod_name, version, MD3_VERSION); return false; } mod->type = MOD_MESH; size = LittleLong(pinmodel->ofsEnd); mod->dataSize += size; mod->md3[lod] = (md3Header_t*)ri.Hunk_Alloc( size, h_low ); Com_Memcpy (mod->md3[lod], buffer, LittleLong(pinmodel->ofsEnd) ); LL(mod->md3[lod]->ident); LL(mod->md3[lod]->version); LL(mod->md3[lod]->numFrames); LL(mod->md3[lod]->numTags); LL(mod->md3[lod]->numSurfaces); LL(mod->md3[lod]->ofsFrames); LL(mod->md3[lod]->ofsTags); LL(mod->md3[lod]->ofsSurfaces); LL(mod->md3[lod]->ofsEnd); if ( mod->md3[lod]->numFrames < 1 ) { ri.Printf( PRINT_WARNING, "R_LoadMD3: %s has no frames\n", mod_name ); return false; } // swap all the frames frame = (md3Frame_t *) ( (byte *)mod->md3[lod] + mod->md3[lod]->ofsFrames ); for ( i = 0 ; i < mod->md3[lod]->numFrames ; i++, frame++) { frame->radius = LittleFloat( frame->radius ); for ( j = 0 ; j < 3 ; j++ ) { frame->bounds[0][j] = LittleFloat( frame->bounds[0][j] ); frame->bounds[1][j] = LittleFloat( frame->bounds[1][j] ); frame->localOrigin[j] = LittleFloat( frame->localOrigin[j] ); } } // swap all the tags tag = (md3Tag_t *) ( (byte *)mod->md3[lod] + mod->md3[lod]->ofsTags ); for ( i = 0 ; i < mod->md3[lod]->numTags * mod->md3[lod]->numFrames ; i++, tag++) { for ( j = 0 ; j < 3 ; j++ ) { tag->origin[j] = LittleFloat( tag->origin[j] ); tag->axis[0][j] = LittleFloat( tag->axis[0][j] ); tag->axis[1][j] = LittleFloat( tag->axis[1][j] ); tag->axis[2][j] = LittleFloat( tag->axis[2][j] ); } } // swap all the surfaces surf = (md3Surface_t *) ( (byte *)mod->md3[lod] + mod->md3[lod]->ofsSurfaces ); for ( i = 0 ; i < mod->md3[lod]->numSurfaces ; i++) { LL(surf->ident); LL(surf->flags); LL(surf->numFrames); LL(surf->numShaders); LL(surf->numTriangles); LL(surf->ofsTriangles); LL(surf->numVerts); LL(surf->ofsShaders); LL(surf->ofsSt); LL(surf->ofsXyzNormals); LL(surf->ofsEnd); if ( surf->numVerts >= SHADER_MAX_VERTEXES ) { ri.Printf(PRINT_WARNING, "R_LoadMD3: %s has more than %i verts on %s (%i).\n", mod_name, SHADER_MAX_VERTEXES - 1, surf->name[0] ? surf->name : "a surface", surf->numVerts ); return false; } if ( surf->numTriangles*3 >= SHADER_MAX_INDEXES ) { ri.Printf(PRINT_WARNING, "R_LoadMD3: %s has more than %i triangles on %s (%i).\n", mod_name, ( SHADER_MAX_INDEXES / 3 ) - 1, surf->name[0] ? surf->name : "a surface", surf->numTriangles ); return false; } // change to surface identifier surf->ident = SF_MD3; // lowercase the surface name so skin compares are faster Q_strlwr( surf->name ); // strip off a trailing _1 or _2 // this is a crutch for q3data being a mess j = strlen( surf->name ); if ( j > 2 && surf->name[j-2] == '_' ) { surf->name[j-2] = 0; } // register the shaders shader = (md3Shader_t *) ( (byte *)surf + surf->ofsShaders ); for ( j = 0 ; j < surf->numShaders ; j++, shader++ ) { shader_t *sh; sh = R_FindShader( shader->name, LIGHTMAP_NONE, true ); if ( sh->defaultShader ) { shader->shaderIndex = 0; } else { shader->shaderIndex = sh->index; } } // swap all the triangles tri = (md3Triangle_t *) ( (byte *)surf + surf->ofsTriangles ); for ( j = 0 ; j < surf->numTriangles ; j++, tri++ ) { LL(tri->indexes[0]); LL(tri->indexes[1]); LL(tri->indexes[2]); } // swap all the ST st = (md3St_t *) ( (byte *)surf + surf->ofsSt ); for ( j = 0 ; j < surf->numVerts ; j++, st++ ) { st->st[0] = LittleFloat( st->st[0] ); st->st[1] = LittleFloat( st->st[1] ); } // swap all the XyzNormals xyz = (md3XyzNormal_t *) ( (byte *)surf + surf->ofsXyzNormals ); for ( j = 0 ; j < surf->numVerts * surf->numFrames ; j++, xyz++ ) { xyz->xyz[0] = LittleShort( xyz->xyz[0] ); xyz->xyz[1] = LittleShort( xyz->xyz[1] ); xyz->xyz[2] = LittleShort( xyz->xyz[2] ); xyz->normal = LittleShort( xyz->normal ); } // find the next surface surf = (md3Surface_t *)( (byte *)surf + surf->ofsEnd ); } return true; } /* ================= R_LoadMDR ================= */ static bool R_LoadMDR( model_t *mod, void *buffer, int filesize, const char *mod_name ) { int i, j, k, l; mdrHeader_t *pinmodel, *mdr; mdrFrame_t *frame; mdrLOD_t *lod, *curlod; mdrSurface_t *surf, *cursurf; mdrTriangle_t *tri, *curtri; mdrVertex_t *v, *curv; mdrWeight_t *weight, *curweight; mdrTag_t *tag, *curtag; size_t size; shader_t *sh; pinmodel = (mdrHeader_t *)buffer; pinmodel->version = LittleLong(pinmodel->version); if (pinmodel->version != MDR_VERSION) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has wrong version (%i should be %i)\n", mod_name, pinmodel->version, MDR_VERSION); return false; } size = LittleLong(pinmodel->ofsEnd); if(size > filesize) { ri.Printf(PRINT_WARNING, "R_LoadMDR: Header of %s is broken. Wrong filesize declared!\n", mod_name); return false; } mod->type = MOD_MDR; LL(pinmodel->numFrames); LL(pinmodel->numBones); LL(pinmodel->ofsFrames); // This is a model that uses some type of compressed Bones. We don't want to uncompress every bone for each rendered frame // over and over again, we'll uncompress it in this function already, so we must adjust the size of the target mdr. if(pinmodel->ofsFrames < 0) { // mdrFrame_t is larger than mdrCompFrame_t: size += pinmodel->numFrames * sizeof(frame->name); // now add enough space for the uncompressed bones. size += pinmodel->numFrames * pinmodel->numBones * ((sizeof(mdrBone_t) - sizeof(mdrCompBone_t))); } // simple bounds check if(pinmodel->numBones < 0 || sizeof(*mdr) + pinmodel->numFrames * (sizeof(*frame) + (pinmodel->numBones - 1) * sizeof(*frame->bones)) > size) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has broken structure.\n", mod_name); return false; } mod->dataSize += size; mod->modelData = mdr = (mdrHeader_t*)ri.Hunk_Alloc( size, h_low ); // Copy all the values over from the file and fix endian issues in the process, if necessary. mdr->ident = LittleLong(pinmodel->ident); mdr->version = pinmodel->version; // Don't need to swap byte order on this one, we already did above. Q_strncpyz(mdr->name, pinmodel->name, sizeof(mdr->name)); mdr->numFrames = pinmodel->numFrames; mdr->numBones = pinmodel->numBones; mdr->numLODs = LittleLong(pinmodel->numLODs); mdr->numTags = LittleLong(pinmodel->numTags); // We don't care about the other offset values, we'll generate them ourselves while loading. mod->numLods = mdr->numLODs; if ( mdr->numFrames < 1 ) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has no frames\n", mod_name); return false; } /* The first frame will be put into the first free space after the header */ frame = (mdrFrame_t *)(mdr + 1); mdr->ofsFrames = (int)((byte *) frame - (byte *) mdr); if (pinmodel->ofsFrames < 0) { mdrCompFrame_t *cframe; // compressed model... cframe = (mdrCompFrame_t *)((byte *) pinmodel - pinmodel->ofsFrames); for(i = 0; i < mdr->numFrames; i++) { for(j = 0; j < 3; j++) { frame->bounds[0][j] = LittleFloat(cframe->bounds[0][j]); frame->bounds[1][j] = LittleFloat(cframe->bounds[1][j]); frame->localOrigin[j] = LittleFloat(cframe->localOrigin[j]); } frame->radius = LittleFloat(cframe->radius); frame->name[0] = '\0'; // No name supplied in the compressed version. for(j = 0; j < mdr->numBones; j++) { for(k = 0; k < (sizeof(cframe->bones[j].Comp) / 2); k++) { // Do swapping for the uncompressing functions. They seem to use shorts // values only, so I assume this will work. Never tested it on other // platforms, though. ((unsigned short *)(cframe->bones[j].Comp))[k] = LittleShort( ((unsigned short *)(cframe->bones[j].Comp))[k] ); } /* Now do the actual uncompressing */ MC_UnCompress(frame->bones[j].matrix, cframe->bones[j].Comp); } // Next Frame... cframe = (mdrCompFrame_t *) &cframe->bones[j]; frame = (mdrFrame_t *) &frame->bones[j]; } } else { mdrFrame_t *curframe; // uncompressed model... // curframe = (mdrFrame_t *)((byte *) pinmodel + pinmodel->ofsFrames); // swap all the frames for ( i = 0 ; i < mdr->numFrames ; i++) { for(j = 0; j < 3; j++) { frame->bounds[0][j] = LittleFloat(curframe->bounds[0][j]); frame->bounds[1][j] = LittleFloat(curframe->bounds[1][j]); frame->localOrigin[j] = LittleFloat(curframe->localOrigin[j]); } frame->radius = LittleFloat(curframe->radius); Q_strncpyz(frame->name, curframe->name, sizeof(frame->name)); for (j = 0; j < (int) (mdr->numBones * sizeof(mdrBone_t) / 4); j++) { ((float *)frame->bones)[j] = LittleFloat( ((float *)curframe->bones)[j] ); } curframe = (mdrFrame_t *) &curframe->bones[mdr->numBones]; frame = (mdrFrame_t *) &frame->bones[mdr->numBones]; } } // frame should now point to the first free address after all frames. lod = (mdrLOD_t *) frame; mdr->ofsLODs = (int) ((byte *) lod - (byte *)mdr); curlod = (mdrLOD_t *)((byte *) pinmodel + LittleLong(pinmodel->ofsLODs)); // swap all the LOD's for ( l = 0 ; l < mdr->numLODs ; l++) { // simple bounds check if((byte *) (lod + 1) > (byte *) mdr + size) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has broken structure.\n", mod_name); return false; } lod->numSurfaces = LittleLong(curlod->numSurfaces); // swap all the surfaces surf = (mdrSurface_t *) (lod + 1); lod->ofsSurfaces = (int)((byte *) surf - (byte *) lod); cursurf = (mdrSurface_t *) ((byte *)curlod + LittleLong(curlod->ofsSurfaces)); for ( i = 0 ; i < lod->numSurfaces ; i++) { // simple bounds check if((byte *) (surf + 1) > (byte *) mdr + size) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has broken structure.\n", mod_name); return false; } // first do some copying stuff surf->ident = SF_MDR; Q_strncpyz(surf->name, cursurf->name, sizeof(surf->name)); Q_strncpyz(surf->shader, cursurf->shader, sizeof(surf->shader)); surf->ofsHeader = (byte *) mdr - (byte *) surf; surf->numVerts = LittleLong(cursurf->numVerts); surf->numTriangles = LittleLong(cursurf->numTriangles); // numBoneReferences and BoneReferences generally seem to be unused // now do the checks that may fail. if ( surf->numVerts >= SHADER_MAX_VERTEXES ) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has more than %i verts on %s (%i).\n", mod_name, SHADER_MAX_VERTEXES - 1, surf->name[0] ? surf->name : "a surface", surf->numVerts ); return false; } if ( surf->numTriangles*3 >= SHADER_MAX_INDEXES ) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has more than %i triangles on %s (%i).\n", mod_name, ( SHADER_MAX_INDEXES / 3 ) - 1, surf->name[0] ? surf->name : "a surface", surf->numTriangles ); return false; } // lowercase the surface name so skin compares are faster Q_strlwr( surf->name ); // register the shaders sh = R_FindShader(surf->shader, LIGHTMAP_NONE, true); if ( sh->defaultShader ) { surf->shaderIndex = 0; } else { surf->shaderIndex = sh->index; } // now copy the vertexes. v = (mdrVertex_t *) (surf + 1); surf->ofsVerts = (int)((byte *) v - (byte *) surf); curv = (mdrVertex_t *) ((byte *)cursurf + LittleLong(cursurf->ofsVerts)); for(j = 0; j < surf->numVerts; j++) { LL(curv->numWeights); // simple bounds check if(curv->numWeights < 0 || (byte *) (v + 1) + (curv->numWeights - 1) * sizeof(*weight) > (byte *) mdr + size) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has broken structure.\n", mod_name); return false; } v->normal[0] = LittleFloat(curv->normal[0]); v->normal[1] = LittleFloat(curv->normal[1]); v->normal[2] = LittleFloat(curv->normal[2]); v->texCoords[0] = LittleFloat(curv->texCoords[0]); v->texCoords[1] = LittleFloat(curv->texCoords[1]); v->numWeights = curv->numWeights; weight = &v->weights[0]; curweight = &curv->weights[0]; // Now copy all the weights for(k = 0; k < v->numWeights; k++) { weight->boneIndex = LittleLong(curweight->boneIndex); weight->boneWeight = LittleFloat(curweight->boneWeight); weight->offset[0] = LittleFloat(curweight->offset[0]); weight->offset[1] = LittleFloat(curweight->offset[1]); weight->offset[2] = LittleFloat(curweight->offset[2]); weight++; curweight++; } v = (mdrVertex_t *) weight; curv = (mdrVertex_t *) curweight; } // we know the offset to the triangles now: tri = (mdrTriangle_t *) v; surf->ofsTriangles = (int)((byte *) tri - (byte *) surf); curtri = (mdrTriangle_t *)((byte *) cursurf + LittleLong(cursurf->ofsTriangles)); // simple bounds check if(surf->numTriangles < 0 || (byte *) (tri + surf->numTriangles) > (byte *) mdr + size) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has broken structure.\n", mod_name); return false; } for(j = 0; j < surf->numTriangles; j++) { tri->indexes[0] = LittleLong(curtri->indexes[0]); tri->indexes[1] = LittleLong(curtri->indexes[1]); tri->indexes[2] = LittleLong(curtri->indexes[2]); tri++; curtri++; } // tri now points to the end of the surface. surf->ofsEnd = (byte *) tri - (byte *) surf; surf = (mdrSurface_t *) tri; // find the next surface. cursurf = (mdrSurface_t *) ((byte *) cursurf + LittleLong(cursurf->ofsEnd)); } // surf points to the next lod now. lod->ofsEnd = (int)((byte *) surf - (byte *) lod); lod = (mdrLOD_t *) surf; // find the next LOD. curlod = (mdrLOD_t *)((byte *) curlod + LittleLong(curlod->ofsEnd)); } // lod points to the first tag now, so update the offset too. tag = (mdrTag_t *) lod; mdr->ofsTags = (int)((byte *) tag - (byte *) mdr); curtag = (mdrTag_t *) ((byte *)pinmodel + LittleLong(pinmodel->ofsTags)); // simple bounds check if(mdr->numTags < 0 || (byte *) (tag + mdr->numTags) > (byte *) mdr + size) { ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has broken structure.\n", mod_name); return false; } for (i = 0 ; i < mdr->numTags ; i++) { tag->boneIndex = LittleLong(curtag->boneIndex); Q_strncpyz(tag->name, curtag->name, sizeof(tag->name)); tag++; curtag++; } // And finally we know the real offset to the end. mdr->ofsEnd = (int)((byte *) tag - (byte *) mdr); // phew! we're done. return true; } //============================================================================= /* ** RE_BeginRegistration */ void RE_BeginRegistration( glconfig_t *glconfigOut ) { R_Init(); *glconfigOut = glConfig; R_IssuePendingRenderCommands(); tr.viewCluster = -1; // force markleafs to regenerate R_ClearFlares(); RE_ClearScene(); tr.registered = true; } //============================================================================= /* =============== R_ModelInit =============== */ void R_ModelInit( void ) { model_t *mod; // leave a space for NULL model tr.numModels = 0; mod = R_AllocModel(); mod->type = MOD_BAD; } /* ================ R_Modellist_f ================ */ void R_Modellist_f( void ) { int i, j; model_t *mod; int total; int lods; total = 0; for ( i = 1 ; i < tr.numModels; i++ ) { mod = tr.models[i]; lods = 1; for ( j = 1 ; j < MD3_MAX_LODS ; j++ ) { if ( mod->md3[j] && mod->md3[j] != mod->md3[j-1] ) { lods++; } } ri.Printf( PRINT_ALL, "%8i : (%i) %s\n",mod->dataSize, lods, mod->name ); total += mod->dataSize; } ri.Printf( PRINT_ALL, "%8i : Total models\n", total ); #if 0 // not working right with new hunk if ( tr.world ) { ri.Printf( PRINT_ALL, "\n%8i : %s\n", tr.world->dataSize, tr.world->name ); } #endif } //============================================================================= /* ================ R_GetTag ================ */ static md3Tag_t *R_GetTag( md3Header_t *mod, int frame, const char *tagName ) { md3Tag_t *tag; int i; if ( frame >= mod->numFrames ) { // it is possible to have a bad frame while changing models, so don't error frame = mod->numFrames - 1; } tag = (md3Tag_t *)((byte *)mod + mod->ofsTags) + frame * mod->numTags; for ( i = 0 ; i < mod->numTags ; i++, tag++ ) { if ( !strcmp( tag->name, tagName ) ) { return tag; // found it } } return NULL; } md3Tag_t *R_GetAnimTag( mdrHeader_t *mod, int framenum, const char *tagName, md3Tag_t * dest) { int i, j, k; int frameSize; mdrFrame_t *frame; mdrTag_t *tag; if ( framenum >= mod->numFrames ) { // it is possible to have a bad frame while changing models, so don't error framenum = mod->numFrames - 1; } tag = (mdrTag_t *)((byte *)mod + mod->ofsTags); for ( i = 0 ; i < mod->numTags ; i++, tag++ ) { if ( !strcmp( tag->name, tagName ) ) { Q_strncpyz(dest->name, tag->name, sizeof(dest->name)); // uncompressed model... // frameSize = (intptr_t)( &((mdrFrame_t *)0)->bones[ mod->numBones ] ); frame = (mdrFrame_t *)((byte *)mod + mod->ofsFrames + framenum * frameSize ); for (j = 0; j < 3; j++) { for (k = 0; k < 3; k++) dest->axis[j][k] = frame->bones[tag->boneIndex].matrix[k][j]; } dest->origin[0] = frame->bones[tag->boneIndex].matrix[0][3]; dest->origin[1] = frame->bones[tag->boneIndex].matrix[1][3]; dest->origin[2] = frame->bones[tag->boneIndex].matrix[2][3]; return dest; } } return NULL; } /* ================ R_LerpTag ================ */ int R_LerpTag( orientation_t *tag, qhandle_t handle, int startFrame, int endFrame, float frac, const char *tagName ) { md3Tag_t *start, *end; md3Tag_t start_space, end_space; int i; float frontLerp, backLerp; model_t *model; model = R_GetModelByHandle( handle ); if ( !model->md3[0] ) { if(model->type == MOD_MDR) { start = R_GetAnimTag((mdrHeader_t *) model->modelData, startFrame, tagName, &start_space); end = R_GetAnimTag((mdrHeader_t *) model->modelData, endFrame, tagName, &end_space); } else if( model->type == MOD_IQM ) { return R_IQMLerpTag( tag, (iqmData_t*)model->modelData, startFrame, endFrame, frac, tagName ); } else { start = end = NULL; } } else { start = R_GetTag( model->md3[0], startFrame, tagName ); end = R_GetTag( model->md3[0], endFrame, tagName ); } if ( !start || !end ) { AxisClear( tag->axis ); VectorClear( tag->origin ); return false; } frontLerp = frac; backLerp = 1.0f - frac; for ( i = 0 ; i < 3 ; i++ ) { tag->origin[i] = start->origin[i] * backLerp + end->origin[i] * frontLerp; tag->axis[0][i] = start->axis[0][i] * backLerp + end->axis[0][i] * frontLerp; tag->axis[1][i] = start->axis[1][i] * backLerp + end->axis[1][i] * frontLerp; tag->axis[2][i] = start->axis[2][i] * backLerp + end->axis[2][i] * frontLerp; } VectorNormalize( tag->axis[0] ); VectorNormalize( tag->axis[1] ); VectorNormalize( tag->axis[2] ); return true; } /* ==================== R_ModelBounds ==================== */ void R_ModelBounds( qhandle_t handle, vec3_t mins, vec3_t maxs ) { model_t *model; model = R_GetModelByHandle( handle ); if(model->type == MOD_BRUSH) { VectorCopy( model->bmodel->bounds[0], mins ); VectorCopy( model->bmodel->bounds[1], maxs ); return; } else if (model->type == MOD_MESH) { md3Header_t *header; md3Frame_t *frame; header = model->md3[0]; frame = (md3Frame_t *) ((byte *)header + header->ofsFrames); VectorCopy( frame->bounds[0], mins ); VectorCopy( frame->bounds[1], maxs ); return; } else if (model->type == MOD_MDR) { mdrHeader_t *header; mdrFrame_t *frame; header = (mdrHeader_t *)model->modelData; frame = (mdrFrame_t *) ((byte *)header + header->ofsFrames); VectorCopy( frame->bounds[0], mins ); VectorCopy( frame->bounds[1], maxs ); return; } else if(model->type == MOD_IQM) { iqmData_t *iqmData; iqmData = (iqmData_t*)model->modelData; if(iqmData->bounds) { VectorCopy(iqmData->bounds, mins); VectorCopy(iqmData->bounds + 3, maxs); return; } } VectorClear( mins ); VectorClear( maxs ); }