/*
* Mod_LoadSkeletalModel
*/
void Mod_LoadSkeletalModel( model_t *mod, const model_t *parent, void *buffer, bspFormatDesc_t *unused )
{
unsigned int i, j, k;
size_t filesize;
qbyte *pbase;
size_t memsize;
qbyte *pmem;
iqmheader_t *header;
char *texts;
iqmvertexarray_t *va;
iqmjoint_t *joints;
bonepose_t *baseposes;
iqmpose_t *poses;
unsigned short *framedata;
const int *inelems;
elem_t *outelems;
iqmmesh_t *inmesh;
iqmbounds_t *inbounds;
float *vposition, *vtexcoord, *vnormal, *vtangent;
qbyte *vblendindices_byte, *vblendweights_byte;
int *vblendindexes_int;
float *vblendweights_float;
mskmodel_t *poutmodel;
baseposes = NULL;
header = ( iqmheader_t * )buffer;
// check IQM magic
if( memcmp( header->magic, "INTERQUAKEMODEL", 16 ) ) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s is not an Inter-Quake Model\n", mod->name );
goto error;
}
// check header version
header->version = LittleLong( header->version );
if( header->version != IQM_VERSION ) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s has wrong type number (%i should be %i)\n", mod->name, header->version, IQM_VERSION );
goto error;
}
// byteswap header
#define H_SWAP(s) (header->s = LittleLong( header->s ))
H_SWAP( filesize );
H_SWAP( flags );
H_SWAP( num_text );
H_SWAP( ofs_text );
H_SWAP( num_meshes );
H_SWAP( ofs_meshes );
H_SWAP( num_vertexarrays );
H_SWAP( num_vertexes );
H_SWAP( ofs_vertexarrays );
H_SWAP( num_triangles );
H_SWAP( ofs_triangles );
H_SWAP( ofs_adjacency );
H_SWAP( num_joints );
H_SWAP( ofs_joints );
H_SWAP( num_poses );
H_SWAP( ofs_poses );
H_SWAP( num_anims );
H_SWAP( ofs_anims );
H_SWAP( num_frames );
H_SWAP( num_framechannels );
H_SWAP( ofs_frames );
H_SWAP( ofs_bounds );
H_SWAP( num_comment );
H_SWAP( ofs_comment );
H_SWAP( num_extensions );
H_SWAP( ofs_extensions );
#undef H_SWAP
if( header->num_triangles < 1 || header->num_vertexes < 3 || header->num_vertexarrays < 1 || header->num_meshes < 1 ) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s has no geometry\n", mod->name );
goto error;
}
if( header->num_frames < 1 || header->num_anims < 1 ) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s has no animations\n", mod->name );
goto error;
}
if( header->num_joints != header->num_poses ) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s has an invalid number of poses: %i vs %i\n", mod->name, header->num_joints, header->num_poses );
goto error;
}
if( !header->ofs_bounds ) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s has no frame bounds\n", mod->name );
goto error;
}
pbase = ( qbyte * )buffer;
filesize = header->filesize;
// check data offsets against the filesize
if( header->ofs_text + header->num_text > filesize
|| header->ofs_vertexarrays + header->num_vertexarrays * sizeof( iqmvertexarray_t ) > filesize
|| header->ofs_joints + header->num_joints * sizeof( iqmjoint_t ) > filesize
|| header->ofs_frames + header->num_frames * header->num_framechannels * sizeof( unsigned short ) > filesize
|| header->ofs_triangles + header->num_triangles * sizeof( int[3] ) > filesize
|| header->ofs_meshes + header->num_meshes * sizeof( iqmmesh_t ) > filesize
|| header->ofs_bounds + header->num_frames * sizeof( iqmbounds_t ) > filesize
) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s has invalid size or offset information\n", mod->name );
goto error;
}
poutmodel = mod->extradata = Mod_Malloc( mod, sizeof( *poutmodel ) );
// load text
texts = Mod_Malloc( mod, header->num_text + 1 );
if( header->ofs_text ) {
memcpy( texts, (const char *)(pbase + header->ofs_text), header->num_text );
}
texts[header->ofs_text] = '\0';
// load vertex arrays
vposition = NULL;
vtexcoord = NULL;
vnormal = NULL;
vtangent = NULL;
vblendindices_byte = NULL;
vblendindexes_int = NULL;
vblendweights_byte = NULL;
vblendweights_float = NULL;
va = ( iqmvertexarray_t * )( pbase + header->ofs_vertexarrays );
for( i = 0; i < header->num_vertexarrays; i++ ) {
size_t vsize;
va[i].type = LittleLong( va[i].type );
va[i].flags = LittleLong( va[i].flags );
va[i].format = LittleLong( va[i].format );
va[i].size = LittleLong( va[i].size );
va[i].offset = LittleLong( va[i].offset );
vsize = header->num_vertexes*va[i].size;
switch( va[i].format ) {
case IQM_FLOAT:
vsize *= sizeof( float );
break;
case IQM_INT:
case IQM_UINT:
vsize *= sizeof( int );
break;
case IQM_BYTE:
case IQM_UBYTE:
vsize *= sizeof( unsigned char );
break;
default:
continue;
}
if( va[i].offset + vsize > filesize ) {
continue;
}
switch( va[i].type ) {
case IQM_POSITION:
if( va[i].format == IQM_FLOAT && va[i].size == 3 ) {
vposition = ( float * )( pbase + va[i].offset );
}
break;
case IQM_TEXCOORD:
if( va[i].format == IQM_FLOAT && va[i].size == 2 ) {
vtexcoord = ( float * )( pbase + va[i].offset );
}
break;
case IQM_NORMAL:
if( va[i].format == IQM_FLOAT && va[i].size == 3 ) {
vnormal = ( float * )( pbase + va[i].offset );
}
break;
case IQM_TANGENT:
if( va[i].format == IQM_FLOAT && va[i].size == 4 ) {
vtangent = ( float * )( pbase + va[i].offset );
}
break;
case IQM_BLENDINDEXES:
if( va[i].size != SKM_MAX_WEIGHTS )
break;
if( va[i].format == IQM_BYTE || va[i].format == IQM_UBYTE ) {
vblendindices_byte = ( qbyte * )( pbase + va[i].offset );
}
else if( va[i].format == IQM_INT || va[i].format == IQM_UINT ) {
vblendindexes_int = ( int * )( pbase + va[i].offset );
}
break;
case IQM_BLENDWEIGHTS:
if( va[i].size != SKM_MAX_WEIGHTS )
break;
if( va[i].format == IQM_UBYTE ) {
vblendweights_byte = ( qbyte * )( pbase + va[i].offset );
}
else if( va[i].format == IQM_FLOAT ) {
vblendweights_float = ( float * )( pbase + va[i].offset );
}
break;
default:
break;
}
}
if( !vposition || !vtexcoord
|| !(vblendindices_byte || vblendindexes_int)
|| !(vblendweights_byte || vblendweights_float) ) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s is missing vertex array data\n", mod->name );
goto error;
}
// load joints
memsize = 0;
memsize += sizeof( bonepose_t ) * header->num_joints;
pmem = Mod_Malloc( mod, memsize );
baseposes = ( void * )pmem; pmem += sizeof( *baseposes );
memsize = 0;
memsize += sizeof( mskbone_t ) * header->num_joints;
memsize += sizeof( bonepose_t ) * header->num_joints;
pmem = Mod_Malloc( mod, memsize );
poutmodel->numbones = header->num_joints;
poutmodel->bones = ( void * )pmem; pmem += sizeof( *poutmodel->bones ) * poutmodel->numbones;
poutmodel->invbaseposes = ( void * )pmem; pmem += sizeof( *poutmodel->invbaseposes ) * poutmodel->numbones;
joints = ( iqmjoint_t * )( pbase + header->ofs_joints );
for( i = 0; i < poutmodel->numbones; i++ ) {
joints[i].name = LittleLong( joints[i].name );
joints[i].parent = LittleLong( joints[i].parent );
for( j = 0; j < 3; j++ ) {
joints[i].translate[j] = LittleFloat( joints[i].translate[j] );
joints[i].rotate[j] = LittleFloat( joints[i].rotate[j] );
joints[i].scale[j] = LittleFloat( joints[i].scale[j] );
}
if( joints[i].parent >= (int)i ) {
ri.Com_Printf( S_COLOR_RED "ERROR: %s bone[%i].parent(%i) >= %i\n", mod->name, i, joints[i].parent, i );
goto error;
}
poutmodel->bones[i].name = texts + joints[i].name;
poutmodel->bones[i].parent = joints[i].parent;
DualQuat_FromQuat3AndVector( joints[i].rotate, joints[i].translate, baseposes[i].dualquat );
// scale is unused
// reconstruct invserse bone pose
if( joints[i].parent >= 0 )
{
bonepose_t bp, *pbp;
bp = baseposes[i];
pbp = &baseposes[joints[i].parent];
DualQuat_Multiply( pbp->dualquat, bp.dualquat, baseposes[i].dualquat );
}
DualQuat_Copy( baseposes[i].dualquat, poutmodel->invbaseposes[i].dualquat );
DualQuat_Invert( poutmodel->invbaseposes[i].dualquat );
}
// load frames
poses = ( iqmpose_t * )( pbase + header->ofs_poses );
for( i = 0; i < header->num_poses; i++ ) {
poses[i].parent = LittleLong( poses[i].parent );
poses[i].mask = LittleLong( poses[i].mask );
for( j = 0; j < 10; j++ ) {
poses[i].channeloffset[j] = LittleFloat( poses[i].channeloffset[j] );
poses[i].channelscale[j] = LittleFloat( poses[i].channelscale[j] );
}
}
memsize = 0;
memsize += sizeof( mskframe_t ) * header->num_frames;
memsize += sizeof( bonepose_t ) * header->num_joints * header->num_frames;
pmem = Mod_Malloc( mod, memsize );
poutmodel->numframes = header->num_frames;
poutmodel->frames = ( mskframe_t * )pmem; pmem += sizeof( mskframe_t ) * poutmodel->numframes;
framedata = ( unsigned short * )( pbase + header->ofs_frames );
for( i = 0; i < header->num_frames; i++ ) {
bonepose_t *pbp;
vec3_t translate;
quat_t rotate;
poutmodel->frames[i].boneposes = ( bonepose_t * )pmem; pmem += sizeof( bonepose_t ) * poutmodel->numbones;
for( j = 0, pbp = poutmodel->frames[i].boneposes; j < header->num_poses; j++, pbp++ ) {
translate[0] = poses[j].channeloffset[0]; if( poses[j].mask & 0x01 ) translate[0] += *framedata++ * poses[j].channelscale[0];
translate[1] = poses[j].channeloffset[1]; if( poses[j].mask & 0x02 ) translate[1] += *framedata++ * poses[j].channelscale[1];
translate[2] = poses[j].channeloffset[2]; if( poses[j].mask & 0x04 ) translate[2] += *framedata++ * poses[j].channelscale[2];
rotate[0] = poses[j].channeloffset[3]; if( poses[j].mask & 0x08 ) rotate[0] += *framedata++ * poses[j].channelscale[3];
rotate[1] = poses[j].channeloffset[4]; if( poses[j].mask & 0x10 ) rotate[1] += *framedata++ * poses[j].channelscale[4];
rotate[2] = poses[j].channeloffset[5]; if( poses[j].mask & 0x20 ) rotate[2] += *framedata++ * poses[j].channelscale[5];
rotate[3] = poses[j].channeloffset[6]; if( poses[j].mask & 0x40 ) rotate[3] += *framedata++ * poses[j].channelscale[6];
if( rotate[3] > 0 ) {
Vector4Inverse( rotate );
}
Vector4Normalize( rotate );
// scale is unused
if( poses[j].mask & 0x80 ) framedata++;
if( poses[j].mask & 0x100 ) framedata++;
if( poses[j].mask & 0x200 ) framedata++;
DualQuat_FromQuatAndVector( rotate, translate, pbp->dualquat );
}
}
// load triangles
memsize = 0;
memsize += sizeof( *outelems ) * header->num_triangles * 3;
pmem = Mod_Malloc( mod, memsize );
poutmodel->numtris = header->num_triangles;
poutmodel->elems = ( elem_t * )pmem; pmem += sizeof( *outelems ) * header->num_triangles * 3;
inelems = ( const int * )(pbase + header->ofs_triangles);
outelems = poutmodel->elems;
for( i = 0; i < header->num_triangles; i++ ) {
for( j = 0; j < 3; j++ ) {
outelems[j] = LittleLong( inelems[j] );
}
inelems += 3;
outelems += 3;
}
// load vertices
memsize = 0;
memsize += sizeof( *poutmodel->sVectorsArray ) * header->num_vertexes; // 16-bytes aligned
memsize += sizeof( *poutmodel->xyzArray ) * header->num_vertexes;
memsize += sizeof( *poutmodel->normalsArray ) * header->num_vertexes;
memsize += sizeof( *poutmodel->stArray ) * header->num_vertexes;
memsize += sizeof( *poutmodel->blendWeights ) * header->num_vertexes * SKM_MAX_WEIGHTS;
memsize += sizeof( *poutmodel->blendIndices ) * header->num_vertexes * SKM_MAX_WEIGHTS;
pmem = Mod_Malloc( mod, memsize );
poutmodel->numverts = header->num_vertexes;
// S-vectors
poutmodel->sVectorsArray = ( vec4_t * )pmem; pmem += sizeof( *poutmodel->sVectorsArray ) * header->num_vertexes;
if( vtangent ) {
for( i = 0; i < header->num_vertexes; i++ ) {
for( j = 0; j < 4; j++ ) {
poutmodel->sVectorsArray[i][j] = LittleFloat( vtangent[j] );
}
vtangent += 4;
}
}
// XYZ positions
poutmodel->xyzArray = ( vec4_t * )pmem; pmem += sizeof( *poutmodel->xyzArray ) * header->num_vertexes;
for( i = 0; i < header->num_vertexes; i++ ) {
for( j = 0; j < 3; j++ ) {
poutmodel->xyzArray[i][j] = LittleFloat( vposition[j] );
}
poutmodel->xyzArray[i][3] = 1;
vposition += 3;
}
// normals
poutmodel->normalsArray = ( vec4_t * )pmem; pmem += sizeof( *poutmodel->normalsArray ) * header->num_vertexes;
for( i = 0; i < header->num_vertexes; i++ ) {
for( j = 0; j < 3; j++ ) {
poutmodel->normalsArray[i][j] = LittleFloat( vnormal[j] );
}
poutmodel->normalsArray[i][3] = 0;
vnormal += 3;
}
// texture coordinates
poutmodel->stArray = ( vec2_t * )pmem; pmem += sizeof( *poutmodel->stArray ) * header->num_vertexes;
for( i = 0; i < header->num_vertexes; i++ ) {
for( j = 0; j < 2; j++ ) {
poutmodel->stArray[i][j] = LittleFloat( vtexcoord[j] );
}
vtexcoord += 2;
}
if( !vtangent ) {
// if the loaded file is missing precomputed S-vectors, compute them now
R_BuildTangentVectors( poutmodel->numverts, poutmodel->xyzArray, poutmodel->normalsArray, poutmodel->stArray,
poutmodel->numtris, poutmodel->elems, poutmodel->sVectorsArray );
}
// blend indices
poutmodel->blendIndices = ( qbyte * )pmem; pmem += sizeof( *poutmodel->blendIndices ) * header->num_vertexes * SKM_MAX_WEIGHTS;
if( vblendindices_byte ) {
memcpy( poutmodel->blendIndices, vblendindices_byte, sizeof( qbyte ) * header->num_vertexes * SKM_MAX_WEIGHTS );
} else if( vblendindexes_int ) {
for( j = 0; j < header->num_vertexes * SKM_MAX_WEIGHTS; j++ ) {
poutmodel->blendIndices[j] = LittleLong( vblendindexes_int[j] );
}
}
// blend weights
poutmodel->blendWeights = ( qbyte * )pmem; pmem += sizeof( *poutmodel->blendWeights ) * header->num_vertexes * SKM_MAX_WEIGHTS;
if( vblendweights_byte ) {
memcpy( poutmodel->blendWeights, vblendweights_byte, sizeof( qbyte ) * header->num_vertexes * SKM_MAX_WEIGHTS );
}
else if( vblendweights_float ) {
for( j = 0; j < header->num_vertexes * SKM_MAX_WEIGHTS; j++ ) {
poutmodel->blendWeights[j] = LittleFloat( vblendweights_float[j] ) * 255.0f;
}
}
// blends
memsize = 0;
memsize += poutmodel->numverts * ( sizeof( mskblend_t ) + sizeof( unsigned int ) );
pmem = Mod_Malloc( mod, memsize );
poutmodel->numblends = 0;
poutmodel->blends = ( mskblend_t * )pmem; pmem += sizeof( *poutmodel->blends ) * poutmodel->numverts;
poutmodel->vertexBlends = ( unsigned int * )pmem;
vblendindices_byte = poutmodel->blendIndices;
vblendweights_byte = poutmodel->blendWeights;
for( i = 0; i < poutmodel->numverts; i++ ) {
mskblend_t blend;
for( j = 0; j < SKM_MAX_WEIGHTS; j++ ) {
blend.indices[j] = vblendindices_byte[j];
blend.weights[j] = vblendweights_byte[j];
}
poutmodel->vertexBlends[i] = Mod_SkeletalModel_AddBlend( poutmodel, &blend );
vblendindices_byte += SKM_MAX_WEIGHTS;
vblendweights_byte += SKM_MAX_WEIGHTS;
}
// meshes
memsize = 0;
memsize += sizeof( mskmesh_t ) * header->num_meshes;
memsize += sizeof( drawSurfaceSkeletal_t ) * header->num_meshes;
pmem = Mod_Malloc( mod, memsize );
poutmodel->nummeshes = header->num_meshes;
poutmodel->meshes = ( mskmesh_t * )pmem; pmem += sizeof( *poutmodel->meshes ) * header->num_meshes;
inmesh = ( iqmmesh_t * )(pbase + header->ofs_meshes);
for( i = 0; i < header->num_meshes; i++ ) {
inmesh[i].name = LittleLong( inmesh[i].name );
inmesh[i].material = LittleLong( inmesh[i].material );
inmesh[i].first_vertex = LittleLong( inmesh[i].first_vertex );
inmesh[i].num_vertexes = LittleLong( inmesh[i].num_vertexes );
inmesh[i].first_triangle = LittleLong( inmesh[i].first_triangle );
inmesh[i].num_triangles = LittleLong( inmesh[i].num_triangles );
poutmodel->meshes[i].name = texts + inmesh[i].name;
Mod_StripLODSuffix( poutmodel->meshes[i].name );
poutmodel->meshes[i].skin.name = texts + inmesh[i].material;
poutmodel->meshes[i].skin.shader = R_RegisterSkin( poutmodel->meshes[i].skin.name );
poutmodel->meshes[i].elems = poutmodel->elems + inmesh[i].first_triangle * 3;
poutmodel->meshes[i].numtris = inmesh[i].num_triangles;
poutmodel->meshes[i].numverts = inmesh[i].num_vertexes;
poutmodel->meshes[i].xyzArray = poutmodel->xyzArray + inmesh[i].first_vertex;
poutmodel->meshes[i].normalsArray = poutmodel->normalsArray + inmesh[i].first_vertex;
poutmodel->meshes[i].stArray = poutmodel->stArray + inmesh[i].first_vertex;
poutmodel->meshes[i].sVectorsArray = poutmodel->sVectorsArray + inmesh[i].first_vertex;
poutmodel->meshes[i].blendIndices = poutmodel->blendIndices + inmesh[i].first_vertex * SKM_MAX_WEIGHTS;
poutmodel->meshes[i].blendWeights = poutmodel->blendWeights + inmesh[i].first_vertex * SKM_MAX_WEIGHTS;
poutmodel->meshes[i].vertexBlends = poutmodel->vertexBlends + inmesh[i].first_vertex;
// elements are always offset to start vertex 0 for each mesh
outelems = poutmodel->meshes[i].elems;
for( j = 0; j < poutmodel->meshes[i].numtris; j++ ) {
outelems[0] -= inmesh[i].first_vertex;
outelems[1] -= inmesh[i].first_vertex;
outelems[2] -= inmesh[i].first_vertex;
outelems += 3;
}
poutmodel->meshes[i].maxWeights = 1;
vblendweights_byte = poutmodel->meshes[i].blendWeights;
for( j = 0; j < poutmodel->meshes[i].numverts; j++ ) {
for( k = 1; k < SKM_MAX_WEIGHTS && vblendweights_byte[k]; k++ );
if( k > poutmodel->meshes[i].maxWeights ) {
poutmodel->meshes[i].maxWeights = k;
if( k == SKM_MAX_WEIGHTS ) {
break;
}
}
vblendweights_byte += SKM_MAX_WEIGHTS;
}
// creating a VBO only makes sense if GLSL is present and the number of bones
// we can handle on the GPU is sufficient
if( glConfig.ext.vertex_buffer_object && poutmodel->numbones <= glConfig.maxGLSLBones ) {
// build a static vertex buffer object for this mesh
Mod_SkeletalBuildStaticVBOForMesh( &poutmodel->meshes[i] );
}
}
poutmodel->drawSurfs = ( drawSurfaceSkeletal_t * )pmem; pmem += sizeof( *poutmodel->drawSurfs ) * header->num_meshes;
for( i = 0; i < header->num_meshes; i++ ) {
poutmodel->drawSurfs[i].type = ST_SKELETAL;
poutmodel->drawSurfs[i].model = mod;
poutmodel->drawSurfs[i].mesh = poutmodel->meshes + i;
}
// bounds
ClearBounds( mod->mins, mod->maxs );
inbounds = ( iqmbounds_t * )(pbase + header->ofs_bounds);
for( i = 0; i < header->num_frames; i++ ) {
for( j = 0; j < 3; j++ ) {
inbounds[i].bbmin[j] = LittleFloat( inbounds[i].bbmin[j] );
inbounds[i].bbmax[j] = LittleFloat( inbounds[i].bbmax[j] );
}
inbounds[i].radius = LittleFloat( inbounds[i].radius );
inbounds[i].xyradius = LittleFloat( inbounds[i].xyradius );
VectorCopy( inbounds[i].bbmin, poutmodel->frames[i].mins );
VectorCopy( inbounds[i].bbmax, poutmodel->frames[i].maxs );
poutmodel->frames[i].radius = inbounds[i].radius;
AddPointToBounds( poutmodel->frames[i].mins, mod->mins, mod->maxs );
AddPointToBounds( poutmodel->frames[i].maxs, mod->mins, mod->maxs );
}
mod->radius = RadiusFromBounds( mod->mins, mod->maxs );
mod->type = mod_skeletal;
mod->registrationSequence = rsh.registrationSequence;
mod->touch = &Mod_TouchSkeletalModel;
R_Free( baseposes );
return;
error:
if( baseposes ) {
R_Free( baseposes );
}
mod->type = mod_bad;
}
/*
* Mod_LoadAliasMD3Model
*/
void Mod_LoadAliasMD3Model( model_t *mod, model_t *parent, void *buffer, bspFormatDesc_t *unused )
{
int version, i, j, l;
int bufsize, numverts;
qbyte *buf;
dmd3header_t *pinmodel;
dmd3frame_t *pinframe;
dmd3tag_t *pintag;
dmd3mesh_t *pinmesh;
dmd3skin_t *pinskin;
dmd3coord_t *pincoord;
dmd3vertex_t *pinvert;
elem_t *pinelem, *poutelem;
maliasvertex_t *poutvert;
vec2_t *poutcoord;
maliasskin_t *poutskin;
maliasmesh_t *poutmesh;
maliastag_t *pouttag;
maliasframe_t *poutframe;
maliasmodel_t *poutmodel;
drawSurfaceAlias_t *drawSurf;
pinmodel = ( dmd3header_t * )buffer;
version = LittleLong( pinmodel->version );
if( version != MD3_ALIAS_VERSION )
ri.Com_Error( ERR_DROP, "%s has wrong version number (%i should be %i)",
mod->name, version, MD3_ALIAS_VERSION );
mod->type = mod_alias;
mod->extradata = poutmodel = Mod_Malloc( mod, sizeof( maliasmodel_t ) );
mod->radius = 0;
mod->registrationSequence = rf.registrationSequence;
mod->touch = &Mod_TouchAliasModel;
ClearBounds( mod->mins, mod->maxs );
// byte swap the header fields and sanity check
poutmodel->numframes = LittleLong( pinmodel->num_frames );
poutmodel->numtags = LittleLong( pinmodel->num_tags );
poutmodel->nummeshes = LittleLong( pinmodel->num_meshes );
poutmodel->numskins = 0;
if( poutmodel->numframes <= 0 )
ri.Com_Error( ERR_DROP, "model %s has no frames", mod->name );
// else if( poutmodel->numframes > MD3_MAX_FRAMES )
// ri.Com_Error( ERR_DROP, "model %s has too many frames", mod->name );
if( poutmodel->numtags > MD3_MAX_TAGS )
ri.Com_Error( ERR_DROP, "model %s has too many tags", mod->name );
else if( poutmodel->numtags < 0 )
ri.Com_Error( ERR_DROP, "model %s has invalid number of tags", mod->name );
if( poutmodel->nummeshes < 0 )
ri.Com_Error( ERR_DROP, "model %s has invalid number of meshes", mod->name );
else if( !poutmodel->nummeshes && !poutmodel->numtags )
ri.Com_Error( ERR_DROP, "model %s has no meshes and no tags", mod->name );
// else if( poutmodel->nummeshes > MD3_MAX_MESHES )
// ri.Com_Error( ERR_DROP, "model %s has too many meshes", mod->name );
bufsize = poutmodel->numframes * ( sizeof( maliasframe_t ) + sizeof( maliastag_t ) * poutmodel->numtags ) +
poutmodel->nummeshes * sizeof( maliasmesh_t ) +
poutmodel->nummeshes * sizeof( drawSurfaceAlias_t );
buf = Mod_Malloc( mod, bufsize );
//
// load the frames
//
pinframe = ( dmd3frame_t * )( ( qbyte * )pinmodel + LittleLong( pinmodel->ofs_frames ) );
poutframe = poutmodel->frames = ( maliasframe_t * )buf; buf += sizeof( maliasframe_t ) * poutmodel->numframes;
for( i = 0; i < poutmodel->numframes; i++, pinframe++, poutframe++ )
{
for( j = 0; j < 3; j++ )
{
poutframe->scale[j] = MD3_XYZ_SCALE;
poutframe->translate[j] = LittleFloat( pinframe->translate[j] );
}
// never trust the modeler utility and recalculate bbox and radius
ClearBounds( poutframe->mins, poutframe->maxs );
}
//
// load the tags
//
pintag = ( dmd3tag_t * )( ( qbyte * )pinmodel + LittleLong( pinmodel->ofs_tags ) );
pouttag = poutmodel->tags = ( maliastag_t * )buf; buf += sizeof( maliastag_t ) * poutmodel->numframes * poutmodel->numtags;
for( i = 0; i < poutmodel->numframes; i++ )
{
for( l = 0; l < poutmodel->numtags; l++, pintag++, pouttag++ )
{
mat3_t axis;
for( j = 0; j < 3; j++ )
{
axis[AXIS_FORWARD+j] = LittleFloat( pintag->axis[0][j] );
axis[AXIS_RIGHT+j] = LittleFloat( pintag->axis[1][j] );
axis[AXIS_UP+j] = LittleFloat( pintag->axis[2][j] );
pouttag->origin[j] = LittleFloat( pintag->origin[j] );
}
Quat_FromMatrix3( axis, pouttag->quat );
Quat_Normalize( pouttag->quat );
Q_strncpyz( pouttag->name, pintag->name, MD3_MAX_PATH );
}
}
//
// allocate drawSurfs
//
drawSurf = poutmodel->drawSurfs = ( drawSurfaceAlias_t * )buf; buf += sizeof( drawSurfaceAlias_t ) * poutmodel->nummeshes;
for( i = 0; i < poutmodel->nummeshes; i++, drawSurf++ )
{
drawSurf->type = ST_ALIAS;
drawSurf->model = mod;
drawSurf->mesh = poutmodel->meshes + i;
}
//
// load meshes
//
pinmesh = ( dmd3mesh_t * )( ( qbyte * )pinmodel + LittleLong( pinmodel->ofs_meshes ) );
poutmesh = poutmodel->meshes = ( maliasmesh_t * )buf; buf += sizeof( maliasmesh_t ) * poutmodel->nummeshes;
for( i = 0; i < poutmodel->nummeshes; i++, poutmesh++ )
{
if( strncmp( (const char *)pinmesh->id, IDMD3HEADER, 4 ) )
ri.Com_Error( ERR_DROP, "mesh %s in model %s has wrong id (%s should be %s)",
pinmesh->name, mod->name, pinmesh->id, IDMD3HEADER );
Q_strncpyz( poutmesh->name, pinmesh->name, MD3_MAX_PATH );
Mod_StripLODSuffix( poutmesh->name );
poutmesh->numtris = LittleLong( pinmesh->num_tris );
poutmesh->numskins = LittleLong( pinmesh->num_skins );
poutmesh->numverts = numverts = LittleLong( pinmesh->num_verts );
/* if( poutmesh->numskins <= 0 )
ri.Com_Error( ERR_DROP, "mesh %i in model %s has no skins", i, mod->name );
else*/ if( poutmesh->numskins > MD3_MAX_SHADERS )
ri.Com_Error( ERR_DROP, "mesh %i in model %s has too many skins", i, mod->name );
if( poutmesh->numtris <= 0 )
ri.Com_Error( ERR_DROP, "mesh %i in model %s has no elements", i, mod->name );
else if( poutmesh->numtris > MD3_MAX_TRIANGLES )
ri.Com_Error( ERR_DROP, "mesh %i in model %s has too many triangles", i, mod->name );
if( poutmesh->numverts <= 0 )
ri.Com_Error( ERR_DROP, "mesh %i in model %s has no vertices", i, mod->name );
else if( poutmesh->numverts > MD3_MAX_VERTS )
ri.Com_Error( ERR_DROP, "mesh %i in model %s has too many vertices", i, mod->name );
bufsize = sizeof( maliasskin_t ) * poutmesh->numskins + poutmesh->numtris * sizeof( elem_t ) * 3 +
numverts * ( sizeof( vec2_t ) + sizeof( maliasvertex_t ) * poutmodel->numframes );
buf = Mod_Malloc( mod, bufsize );
//
// load the skins
//
pinskin = ( dmd3skin_t * )( ( qbyte * )pinmesh + LittleLong( pinmesh->ofs_skins ) );
poutskin = poutmesh->skins = ( maliasskin_t * )buf; buf += sizeof( maliasskin_t ) * poutmesh->numskins;
for( j = 0; j < poutmesh->numskins; j++, pinskin++, poutskin++ ) {
Q_strncpyz( poutskin->name, pinskin->name, sizeof( poutskin->name ) );
poutskin->shader = R_RegisterSkin( poutskin->name );
}
//
// load the elems
//
pinelem = ( elem_t * )( ( qbyte * )pinmesh + LittleLong( pinmesh->ofs_elems ) );
poutelem = poutmesh->elems = ( elem_t * )buf; buf += poutmesh->numtris * sizeof( elem_t ) * 3;
for( j = 0; j < poutmesh->numtris; j++, pinelem += 3, poutelem += 3 )
{
poutelem[0] = (elem_t)LittleLong( pinelem[0] );
poutelem[1] = (elem_t)LittleLong( pinelem[1] );
poutelem[2] = (elem_t)LittleLong( pinelem[2] );
}
//
// load the texture coordinates
//
pincoord = ( dmd3coord_t * )( ( qbyte * )pinmesh + LittleLong( pinmesh->ofs_tcs ) );
poutcoord = poutmesh->stArray = ( vec2_t * )buf; buf += poutmesh->numverts * sizeof( vec2_t );
for( j = 0; j < poutmesh->numverts; j++, pincoord++ )
{
poutcoord[j][0] = LittleFloat( pincoord->st[0] );
poutcoord[j][1] = LittleFloat( pincoord->st[1] );
}
//
// load the vertexes and normals
//
pinvert = ( dmd3vertex_t * )( ( qbyte * )pinmesh + LittleLong( pinmesh->ofs_verts ) );
poutvert = poutmesh->vertexes = ( maliasvertex_t * )buf;
for( l = 0, poutframe = poutmodel->frames; l < poutmodel->numframes; l++, poutframe++, pinvert += poutmesh->numverts, poutvert += poutmesh->numverts )
{
vec3_t v;
for( j = 0; j < poutmesh->numverts; j++ )
{
poutvert[j].point[0] = LittleShort( pinvert[j].point[0] );
poutvert[j].point[1] = LittleShort( pinvert[j].point[1] );
poutvert[j].point[2] = LittleShort( pinvert[j].point[2] );
poutvert[j].latlong[0] = pinvert[j].norm[0];
poutvert[j].latlong[1] = pinvert[j].norm[1];
VectorCopy( poutvert[j].point, v );
AddPointToBounds( v, poutframe->mins, poutframe->maxs );
}
}
pinmesh = ( dmd3mesh_t * )( ( qbyte * )pinmesh + LittleLong( pinmesh->meshsize ) );
}
//
// setup drawSurfs
//
for( i = 0; i < poutmodel->nummeshes; i++ )
{
drawSurf = poutmodel->drawSurfs + i;
drawSurf->type = ST_ALIAS;
drawSurf->model = mod;
drawSurf->mesh = poutmodel->meshes + i;
}
//
// build S and T vectors for frame 0
//
Mod_AliasBuildMeshesForFrame0( mod );
//
// calculate model bounds
//
poutframe = poutmodel->frames;
for( i = 0; i < poutmodel->numframes; i++, poutframe++ )
{
VectorMA( poutframe->translate, MD3_XYZ_SCALE, poutframe->mins, poutframe->mins );
VectorMA( poutframe->translate, MD3_XYZ_SCALE, poutframe->maxs, poutframe->maxs );
poutframe->radius = RadiusFromBounds( poutframe->mins, poutframe->maxs );
AddPointToBounds( poutframe->mins, mod->mins, mod->maxs );
AddPointToBounds( poutframe->maxs, mod->mins, mod->maxs );
mod->radius = max( mod->radius, poutframe->radius );
}
}
