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Diffstat (limited to 'src/renderer/tr_model.c')
| -rw-r--r-- | src/renderer/tr_model.c | 1100 |
1 files changed, 1100 insertions, 0 deletions
diff --git a/src/renderer/tr_model.c b/src/renderer/tr_model.c new file mode 100644 index 0000000..8fdd0ad --- /dev/null +++ b/src/renderer/tr_model.c @@ -0,0 +1,1100 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. +Copyright (C) 2000-2006 Tim Angus + +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 2 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, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +// tr_models.c -- model loading and caching + +#include "tr_local.h" + +#define LL(x) x=LittleLong(x) + +static qboolean R_LoadMD3 (model_t *mod, int lod, void *buffer, const char *name ); +static qboolean R_LoadMD4 (model_t *mod, void *buffer, const char *name ); +#ifdef RAVENMD4 +static qboolean R_LoadMDR (model_t *mod, void *buffer, int filesize, const char *name ); +#endif + +model_t *loadmodel; + +/* +** 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 = 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; + unsigned *buf; + int lod; + int ident; + qboolean loaded = qfalse; + qhandle_t hModel; + int numLoaded; + char *fext, defex[] = "md3", filename[MAX_QPATH], namebuf[MAX_QPATH+20]; + + if ( !name || !name[0] ) { + ri.Printf( PRINT_ALL, "RE_RegisterModel: NULL name\n" ); + return 0; + } + + if ( strlen( name ) >= MAX_QPATH ) { + Com_Printf( "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 ) ); + + + // make sure the render thread is stopped + R_SyncRenderThread(); + + mod->numLods = 0; + + // + // load the files + // + numLoaded = 0; + + strcpy(filename, name); + + fext = strchr(filename, '.'); + if(!fext) + fext = defex; + else + { + *fext = '\0'; + fext++; + } + +#ifdef RAVENMD4 + if(!Q_stricmp(fext, "mdr")) + { + int filesize; + + filesize = ri.FS_ReadFile(name, (void **) &buf); + if(!buf) + { + ri.Printf (PRINT_WARNING,"RE_RegisterModel: couldn't load %s\n", name); + mod->type = MOD_BAD; + return 0; + } + + ident = LittleLong(*(unsigned *)buf); + if(ident == MDR_IDENT) + loaded = R_LoadMDR(mod, buf, filesize, name); + + ri.FS_FreeFile (buf); + + if(!loaded) + { + ri.Printf(PRINT_WARNING,"RE_RegisterModel: couldn't load mdr file %s\n", name); + mod->type = MOD_BAD; + return 0; + } + + return mod->index; + } +#endif + + fext = defex; + + 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, (void **)&buf ); + if ( !buf ) { + continue; + } + + loadmodel = mod; + + ident = LittleLong(*(unsigned *)buf); + if ( ident == MD4_IDENT ) { + loaded = R_LoadMD4( mod, buf, name ); + } else { + if ( ident != MD3_IDENT ) { + ri.Printf (PRINT_WARNING,"RE_RegisterModel: unknown fileid for %s\n", name); + goto fail; + } + + loaded = R_LoadMD3( mod, lod, buf, name ); + } + + ri.FS_FreeFile (buf); + + if ( !loaded ) { + if ( lod == 0 ) { + goto fail; + } else { + break; + } + } else { + mod->numLods++; + numLoaded++; + // if we have a valid model and are biased + // so that we won't see any higher detail ones, + // stop loading them +// if ( lod <= r_lodbias->integer ) { +// 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; + } +#ifdef _DEBUG + else { + ri.Printf (PRINT_WARNING,"RE_RegisterModel: couldn't load %s\n", name); + } +#endif + +fail: + // we still keep the model_t around, so if the model name is asked for + // again, we won't bother scanning the filesystem + mod->type = MOD_BAD; + return 0; +} + + +/* +================= +R_LoadMD3 +================= +*/ +static qboolean 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 qfalse; + } + + mod->type = MOD_MESH; + size = LittleLong(pinmodel->ofsEnd); + mod->dataSize += size; + mod->md3[lod] = 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 qfalse; + } + + // 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.Error (ERR_DROP, "R_LoadMD3: %s has more than %i verts on a surface (%i)", + mod_name, SHADER_MAX_VERTEXES, surf->numVerts ); + } + if ( surf->numTriangles*3 > SHADER_MAX_INDEXES ) { + ri.Error (ERR_DROP, "R_LoadMD3: %s has more than %i triangles on a surface (%i)", + mod_name, SHADER_MAX_INDEXES / 3, surf->numTriangles ); + } + + // 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, qtrue ); + 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 qtrue; +} + + + +/* +================= +R_LoadMDR +================= +*/ +#ifdef RAVENMD4 +static qboolean 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; + int 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 qfalse; + } + + 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 qfalse; + } + + mod->type = MOD_MDR; + + pinmodel->numFrames = LittleLong(pinmodel->numFrames); + pinmodel->numBones = LittleLong(pinmodel->numBones); + pinmodel->ofsFrames = LittleLong(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 md4. + 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))); + } + + mod->dataSize += size; + mod->md4 = mdr = 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 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 qfalse; + } + + /* 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++; + frame++; + } + } + + // 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++) + { + 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++) { + // 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 a surface (%i)", + mod_name, SHADER_MAX_VERTEXES, surf->numVerts ); + return qfalse; + } + if ( surf->numTriangles*3 > SHADER_MAX_INDEXES ) + { + ri.Printf(PRINT_WARNING, "R_LoadMDR: %s has more than %i triangles on a surface (%i)", + mod_name, SHADER_MAX_INDEXES / 3, surf->numTriangles ); + return qfalse; + } + // lowercase the surface name so skin compares are faster + Q_strlwr( surf->name ); + + // register the shaders + sh = R_FindShader(surf->shader, LIGHTMAP_NONE, qtrue); + 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++) + { + 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 = LittleLong(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)); + + 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)); + + 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 offset to the end. + mdr->ofsEnd = (int)((byte *) tag - (byte *) mdr); + + // phew! we're done. + + return qtrue; +} +#endif + +/* +================= +R_LoadMD4 +================= +*/ + +static qboolean R_LoadMD4( model_t *mod, void *buffer, const char *mod_name ) { + int i, j, k, lodindex; + md4Header_t *pinmodel, *md4; + md4Frame_t *frame; + md4LOD_t *lod; + md4Surface_t *surf; + md4Triangle_t *tri; + md4Vertex_t *v; + int version; + int size; + shader_t *sh; + int frameSize; + + pinmodel = (md4Header_t *)buffer; + + version = LittleLong (pinmodel->version); + if (version != MD4_VERSION) { + ri.Printf( PRINT_WARNING, "R_LoadMD4: %s has wrong version (%i should be %i)\n", + mod_name, version, MD4_VERSION); + return qfalse; + } + + mod->type = MOD_MD4; + size = LittleLong(pinmodel->ofsEnd); + mod->dataSize += size; + md4 = mod->md4 = ri.Hunk_Alloc( size, h_low ); + + Com_Memcpy(md4, buffer, size); + + LL(md4->ident); + LL(md4->version); + LL(md4->numFrames); + LL(md4->numBones); + LL(md4->numLODs); + LL(md4->ofsFrames); + LL(md4->ofsLODs); + md4->ofsEnd = size; + + if ( md4->numFrames < 1 ) { + ri.Printf( PRINT_WARNING, "R_LoadMD4: %s has no frames\n", mod_name ); + return qfalse; + } + + // we don't need to swap tags in the renderer, they aren't used + + // swap all the frames + frameSize = (size_t)( &((md4Frame_t *)0)->bones[ md4->numBones ] ); + for ( i = 0 ; i < md4->numFrames ; i++, frame++) { + frame = (md4Frame_t *) ( (byte *)md4 + md4->ofsFrames + i * frameSize ); + 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] ); + } + for ( j = 0 ; j < md4->numBones * sizeof( md4Bone_t ) / 4 ; j++ ) { + ((float *)frame->bones)[j] = LittleFloat( ((float *)frame->bones)[j] ); + } + } + + // swap all the LOD's + lod = (md4LOD_t *) ( (byte *)md4 + md4->ofsLODs ); + for ( lodindex = 0 ; lodindex < md4->numLODs ; lodindex++ ) { + + // swap all the surfaces + surf = (md4Surface_t *) ( (byte *)lod + lod->ofsSurfaces ); + for ( i = 0 ; i < lod->numSurfaces ; i++) { + LL(surf->ident); + LL(surf->numTriangles); + LL(surf->ofsTriangles); + LL(surf->numVerts); + LL(surf->ofsVerts); + LL(surf->ofsEnd); + + if ( surf->numVerts > SHADER_MAX_VERTEXES ) { + ri.Error (ERR_DROP, "R_LoadMD3: %s has more than %i verts on a surface (%i)", + mod_name, SHADER_MAX_VERTEXES, surf->numVerts ); + } + if ( surf->numTriangles*3 > SHADER_MAX_INDEXES ) { + ri.Error (ERR_DROP, "R_LoadMD3: %s has more than %i triangles on a surface (%i)", + mod_name, SHADER_MAX_INDEXES / 3, surf->numTriangles ); + } + + // change to surface identifier + surf->ident = SF_MD4; + + // lowercase the surface name so skin compares are faster + Q_strlwr( surf->name ); + + // register the shaders + sh = R_FindShader( surf->shader, LIGHTMAP_NONE, qtrue ); + if ( sh->defaultShader ) { + surf->shaderIndex = 0; + } else { + surf->shaderIndex = sh->index; + } + + // swap all the triangles + tri = (md4Triangle_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 vertexes + // FIXME + // This makes TFC's skeletons work. Shouldn't be necessary anymore, but left + // in for reference. + //v = (md4Vertex_t *) ( (byte *)surf + surf->ofsVerts + 12); + v = (md4Vertex_t *) ( (byte *)surf + surf->ofsVerts); + for ( j = 0 ; j < surf->numVerts ; j++ ) { + v->normal[0] = LittleFloat( v->normal[0] ); + v->normal[1] = LittleFloat( v->normal[1] ); + v->normal[2] = LittleFloat( v->normal[2] ); + + v->texCoords[0] = LittleFloat( v->texCoords[0] ); + v->texCoords[1] = LittleFloat( v->texCoords[1] ); + + v->numWeights = LittleLong( v->numWeights ); + + for ( k = 0 ; k < v->numWeights ; k++ ) { + v->weights[k].boneIndex = LittleLong( v->weights[k].boneIndex ); + v->weights[k].boneWeight = LittleFloat( v->weights[k].boneWeight ); + v->weights[k].offset[0] = LittleFloat( v->weights[k].offset[0] ); + v->weights[k].offset[1] = LittleFloat( v->weights[k].offset[1] ); + v->weights[k].offset[2] = LittleFloat( v->weights[k].offset[2] ); + } + // FIXME + // This makes TFC's skeletons work. Shouldn't be necessary anymore, but left + // in for reference. + //v = (md4Vertex_t *)( ( byte * )&v->weights[v->numWeights] + 12 ); + v = (md4Vertex_t *)( ( byte * )&v->weights[v->numWeights]); + } + + // find the next surface + surf = (md4Surface_t *)( (byte *)surf + surf->ofsEnd ); + } + + // find the next LOD + lod = (md4LOD_t *)( (byte *)lod + lod->ofsEnd ); + } + + return qtrue; +} + + + +//============================================================================= + +/* +** RE_BeginRegistration +*/ +void RE_BeginRegistration( glconfig_t *glconfigOut ) { + + R_Init(); + + *glconfigOut = glConfig; + + R_SyncRenderThread(); + + tr.viewCluster = -1; // force markleafs to regenerate + R_ClearFlares(); + RE_ClearScene(); + + tr.registered = qtrue; + + // NOTE: this sucks, for some reason the first stretch pic is never drawn + // without this we'd see a white flash on a level load because the very + // first time the level shot would not be drawn + RE_StretchPic(0, 0, 0, 0, 0, 0, 1, 1, 0); +} + +//============================================================================= + +/* +=============== +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; +} + +#ifdef RAVENMD4 +void 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 = (long)( &((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; + } + } + + AxisClear( dest->axis ); + VectorClear( dest->origin ); + strcpy(dest->name,""); +} +#endif + +/* +================ +R_LerpTag +================ +*/ +int R_LerpTag( orientation_t *tag, qhandle_t handle, int startFrame, int endFrame, + float frac, const char *tagName ) { + md3Tag_t *start, *end; +#ifdef RAVENMD4 + md3Tag_t start_space, end_space; +#endif + int i; + float frontLerp, backLerp; + model_t *model; + + model = R_GetModelByHandle( handle ); + if ( !model->md3[0] ) + { +#ifdef RAVENMD4 + if(model->md4) + { + start = &start_space; + end = &end_space; + R_GetAnimTag((mdrHeader_t *) model->md4, startFrame, tagName, start); + R_GetAnimTag((mdrHeader_t *) model->md4, endFrame, tagName, end); + } + else +#endif + { + + AxisClear( tag->axis ); + VectorClear( tag->origin ); + return qfalse; + + } + } + 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 qfalse; + } + } + + 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 qtrue; +} + + +/* +==================== +R_ModelBounds +==================== +*/ +void R_ModelBounds( qhandle_t handle, vec3_t mins, vec3_t maxs ) { + model_t *model; + md3Header_t *header; + md3Frame_t *frame; + + model = R_GetModelByHandle( handle ); + + if ( model->bmodel ) { + VectorCopy( model->bmodel->bounds[0], mins ); + VectorCopy( model->bmodel->bounds[1], maxs ); + return; + } + + if ( !model->md3[0] ) { + VectorClear( mins ); + VectorClear( maxs ); + return; + } + + header = model->md3[0]; + + frame = (md3Frame_t *)( (byte *)header + header->ofsFrames ); + + VectorCopy( frame->bounds[0], mins ); + VectorCopy( frame->bounds[1], maxs ); +} + |