-/* -----------------------------------------------------------------------------\r
-\r
-PicoModel Library\r
-\r
-Copyright (c) 2002, Randy Reddig & seaw0lf\r
-All rights reserved.\r
-\r
-Redistribution and use in source and binary forms, with or without modification,\r
-are permitted provided that the following conditions are met:\r
-\r
-Redistributions of source code must retain the above copyright notice, this list\r
-of conditions and the following disclaimer.\r
-\r
-Redistributions in binary form must reproduce the above copyright notice, this\r
-list of conditions and the following disclaimer in the documentation and/or\r
-other materials provided with the distribution.\r
-\r
-Neither the names of the copyright holders nor the names of its contributors may\r
-be used to endorse or promote products derived from this software without\r
-specific prior written permission.\r
-\r
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND\r
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR\r
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\r
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
-\r
------------------------------------------------------------------------------ */\r
-\r
-\r
-\r
-/* marker */\r
-#define PICOMODEL_C\r
-\r
-\r
-\r
-/* dependencies */\r
-#include "picointernal.h"\r
-\r
-\r
-\r
-/*\r
-PicoInit()\r
-initializes the picomodel library\r
-*/\r
-\r
-int PicoInit( void )\r
-{\r
- /* successfully initialized -sea */\r
- return 1;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoShutdown()\r
-shuts the pico model library down\r
-*/\r
-\r
-void PicoShutdown( void )\r
-{\r
- /* do something interesting here in the future */\r
- return;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoError()\r
-returns last picomodel error code (see PME_* defines)\r
-*/\r
-\r
-int PicoError( void )\r
-{\r
- /* todo: do something here */\r
- return 0;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoSetMallocFunc()\r
-sets the ptr to the malloc function\r
-*/\r
-\r
-void PicoSetMallocFunc( void *(*func)( size_t ) )\r
-{\r
- if( func != NULL )\r
- _pico_ptr_malloc = func;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoSetFreeFunc()\r
-sets the ptr to the free function\r
-*/\r
-\r
-void PicoSetFreeFunc( void (*func)( void* ) )\r
-{\r
- if( func != NULL )\r
- _pico_ptr_free = func;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoSetLoadFileFunc()\r
-sets the ptr to the file load function\r
-*/\r
-\r
-void PicoSetLoadFileFunc( void (*func)( char*, unsigned char**, int* ) )\r
-{\r
- if( func != NULL )\r
- _pico_ptr_load_file = func;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoSetFreeFileFunc()\r
-sets the ptr to the free function\r
-*/\r
-\r
-void PicoSetFreeFileFunc( void (*func)( void* ) )\r
-{\r
- if( func != NULL )\r
- _pico_ptr_free_file = func;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoSetPrintFunc()\r
-sets the ptr to the print function\r
-*/\r
-\r
-void PicoSetPrintFunc( void (*func)( int, const char* ) )\r
-{\r
- if( func != NULL )\r
- _pico_ptr_print = func;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoLoadModel()\r
-the meat and potatoes function\r
-*/\r
-\r
-picoModel_t *PicoLoadModel( char *fileName, int frameNum )\r
-{\r
- const picoModule_t **modules, *pm;\r
- picoModel_t *model;\r
- picoByte_t *buffer;\r
- int bufSize;\r
- char *modelFileName, *remapFileName;\r
-\r
- \r
- /* init */\r
- model = NULL;\r
- \r
- /* make sure we've got a file name */\r
- if( fileName == NULL )\r
- {\r
- _pico_printf( PICO_ERROR, "PicoLoadModel: No filename given (fileName == NULL)" );\r
- return NULL;\r
- }\r
- \r
- /* load file data (buffer is allocated by host app) */\r
- _pico_load_file( fileName, &buffer, &bufSize );\r
- if( bufSize < 0 )\r
- {\r
- _pico_printf( PICO_ERROR, "PicoLoadModel: Failed loading model %s", fileName );\r
- return NULL;\r
- }\r
-\r
- /* get ptr to list of supported modules */\r
- modules = PicoModuleList( NULL );\r
- \r
- /* run it through the various loader functions and try */\r
- /* to find a loader that fits the given file data */\r
- for( ; *modules != NULL; modules++ )\r
- {\r
- /* get module */\r
- pm = *modules;\r
- \r
- /* sanity check */\r
- if( pm == NULL)\r
- break;\r
-\r
- /* module must be able to load */\r
- if( pm->canload == NULL || pm->load == NULL )\r
- continue;\r
- \r
- /* see whether this module can load the model file or not */\r
- if( pm->canload( fileName, buffer, bufSize ) == PICO_PMV_OK )\r
- {\r
- /* use loader provided by module to read the model data */\r
- model = pm->load( fileName, frameNum, buffer, bufSize );\r
- if( model == NULL )\r
- {\r
- _pico_free_file( buffer );\r
- return NULL;\r
- }\r
- \r
- /* assign pointer to file format module */\r
- model->module = pm;\r
- \r
- /* get model file name */\r
- modelFileName = PicoGetModelFileName( model );\r
- \r
- /* apply model remappings from <model>.remap */\r
- if( strlen( modelFileName ) )\r
- {\r
- /* alloc copy of model file name */\r
- remapFileName = _pico_alloc( strlen( modelFileName ) + 20 );\r
- if( remapFileName != NULL )\r
- {\r
- /* copy model file name and change extension */\r
- strcpy( remapFileName, modelFileName );\r
- _pico_setfext( remapFileName, "remap" );\r
-\r
- /* try to remap model; we don't handle the result */\r
- PicoRemapModel( model, remapFileName );\r
-\r
- /* free the remap file name string */\r
- _pico_free( remapFileName );\r
- }\r
- }\r
- \r
- /* model was loaded, so break out of loop */\r
- break;\r
- }\r
- }\r
- \r
- /* free memory used by file buffer */\r
- if( buffer)\r
- _pico_free_file( buffer );\r
-\r
- /* return */\r
- return model;\r
-}\r
-\r
-\r
-\r
-/* ----------------------------------------------------------------------------\r
-models\r
----------------------------------------------------------------------------- */\r
-\r
-/*\r
-PicoNewModel()\r
-creates a new pico model\r
-*/\r
-\r
-picoModel_t *PicoNewModel( void )\r
-{\r
- picoModel_t *model;\r
- \r
- /* allocate */\r
- model = _pico_alloc( sizeof(picoModel_t) );\r
- if( model == NULL )\r
- return NULL;\r
-\r
- /* clear */\r
- memset( model,0,sizeof(picoModel_t) );\r
- \r
- /* model set up */\r
- _pico_zero_bounds( model->mins,model->maxs );\r
-\r
- /* set initial frame count to 1 -sea */\r
- model->numFrames = 1;\r
-\r
- /* return ptr to new model */\r
- return model;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoFreeModel()\r
-frees a model and all associated data\r
-*/\r
-\r
-void PicoFreeModel( picoModel_t *model )\r
-{\r
- int i;\r
- \r
-\r
- /* sanity check */\r
- if( model == NULL )\r
- return;\r
- \r
- /* free bits */\r
- if( model->name )\r
- _pico_free( model->name );\r
- \r
- /* free shaders */\r
- for( i = 0; i < model->numShaders; i++ )\r
- PicoFreeShader( model->shader[ i ] );\r
- free( model->shader );\r
- \r
- /* free surfaces */\r
- for( i = 0; i < model->numSurfaces; i++ )\r
- PicoFreeSurface( model->surface[ i ] );\r
- free( model->surface );\r
- \r
- /* free the model */\r
- _pico_free( model );\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoAdjustModel()\r
-adjusts a models's memory allocations to handle the requested sizes.\r
-will always grow, never shrink\r
-*/\r
-\r
-int PicoAdjustModel( picoModel_t *model, int numShaders, int numSurfaces )\r
-{\r
- /* dummy check */\r
- if( model == NULL )\r
- return 0;\r
- \r
- /* bare minimums */\r
- /* sea: null surface/shader fix (1s=>0s) */\r
- if( numShaders < 0 )\r
- numShaders = 0;\r
- if( numSurfaces < 0 )\r
- numSurfaces = 0;\r
-\r
- /* additional shaders? */\r
- while( numShaders > model->maxShaders )\r
- {\r
- model->maxShaders += PICO_GROW_SHADERS;\r
- if( !_pico_realloc( (void *) &model->shader, model->numShaders * sizeof( *model->shader ), model->maxShaders * sizeof( *model->shader ) ) )\r
- return 0;\r
- }\r
- \r
- /* set shader count to higher */\r
- if( numShaders > model->numShaders )\r
- model->numShaders = numShaders;\r
- \r
- /* additional surfaces? */\r
- while( numSurfaces > model->maxSurfaces )\r
- {\r
- model->maxSurfaces += PICO_GROW_SURFACES;\r
- if( !_pico_realloc( (void *) &model->surface, model->numSurfaces * sizeof( *model->surface ), model->maxSurfaces * sizeof( *model->surface ) ) )\r
- return 0;\r
- }\r
- \r
- /* set shader count to higher */\r
- if( numSurfaces > model->numSurfaces )\r
- model->numSurfaces = numSurfaces;\r
- \r
- /* return ok */\r
- return 1;\r
-}\r
-\r
-\r
-\r
-/* ----------------------------------------------------------------------------\r
-shaders\r
----------------------------------------------------------------------------- */\r
-\r
-/*\r
-PicoNewShader()\r
-creates a new pico shader and returns its index. -sea\r
-*/\r
-\r
-picoShader_t *PicoNewShader( picoModel_t *model )\r
-{\r
- picoShader_t *shader;\r
- \r
-\r
- /* allocate and clear */\r
- shader = _pico_alloc( sizeof(picoShader_t) );\r
- if( shader == NULL )\r
- return NULL;\r
- memset( shader, 0, sizeof(picoShader_t) );\r
- \r
- /* attach it to the model */\r
- if( model != NULL )\r
- {\r
- /* adjust model */\r
- if( !PicoAdjustModel( model, model->numShaders + 1, 0 ) )\r
- {\r
- _pico_free( shader );\r
- return NULL;\r
- }\r
- /* attach */\r
- model->shader[ model->numShaders - 1 ] = shader;\r
- shader->model = model;\r
- }\r
- /* setup default shader colors */\r
- _pico_set_color( shader->ambientColor,0,0,0,0 );\r
- _pico_set_color( shader->diffuseColor,255,255,255,1 );\r
- _pico_set_color( shader->specularColor,0,0,0,0 );\r
-\r
- /* no need to do this, but i do it anyway */\r
- shader->transparency = 0;\r
- shader->shininess = 0;\r
-\r
- /* return the newly created shader */\r
- return shader;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoFreeShader()\r
-frees a shader and all associated data -sea\r
-*/\r
-\r
-void PicoFreeShader( picoShader_t *shader )\r
-{\r
- /* dummy check */\r
- if( shader == NULL )\r
- return;\r
- \r
- /* free bits */\r
- if( shader->name )\r
- _pico_free( shader->name );\r
- if( shader->mapName )\r
- _pico_free( shader->mapName );\r
- \r
- /* free the shader */\r
- _pico_free( shader );\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoFindShader()\r
-finds a named shader in a model\r
-*/\r
-\r
-picoShader_t *PicoFindShader( picoModel_t *model, char *name, int caseSensitive )\r
-{\r
- int i;\r
- \r
- \r
- /* sanity checks */\r
- if( model == NULL || name == NULL ) /* sea: null name fix */\r
- return NULL;\r
- \r
- /* walk list */\r
- for( i = 0; i < model->numShaders; i++ )\r
- {\r
- /* skip null shaders or shaders with null names */\r
- if( model->shader[ i ] == NULL ||\r
- model->shader[ i ]->name == NULL )\r
- continue;\r
-\r
- /* compare the shader name with name we're looking for */\r
- if( caseSensitive )\r
- {\r
- if( !strcmp( name, model->shader[ i ]->name ) )\r
- return model->shader[ i ];\r
- }\r
- else if( !_pico_stricmp( name, model->shader[ i ]->name ) )\r
- return model->shader[ i ];\r
- }\r
- \r
- /* named shader not found */\r
- return NULL;\r
-}\r
-\r
-\r
-\r
-/* ----------------------------------------------------------------------------\r
-surfaces\r
----------------------------------------------------------------------------- */\r
-\r
-/*\r
-PicoNewSurface()\r
-creates a new pico surface\r
-*/\r
-\r
-picoSurface_t *PicoNewSurface( picoModel_t *model )\r
-{\r
- picoSurface_t *surface;\r
- char surfaceName[64];\r
- \r
- /* allocate and clear */\r
- surface = _pico_alloc( sizeof( *surface ) );\r
- if( surface == NULL )\r
- return NULL;\r
- memset( surface, 0, sizeof( *surface ) );\r
- \r
- /* attach it to the model */\r
- if( model != NULL )\r
- {\r
- /* adjust model */\r
- if( !PicoAdjustModel( model, 0, model->numSurfaces + 1 ) )\r
- {\r
- _pico_free( surface );\r
- return NULL;\r
- }\r
- \r
- /* attach */\r
- model->surface[ model->numSurfaces - 1 ] = surface;\r
- surface->model = model;\r
- \r
- /* set default name */\r
- sprintf( surfaceName, "Unnamed_%d", model->numSurfaces );\r
- PicoSetSurfaceName( surface, surfaceName );\r
- }\r
- \r
- /* return */\r
- return surface;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoFreeSurface()\r
-frees a surface and all associated data\r
-*/\r
-void PicoFreeSurface( picoSurface_t *surface )\r
-{\r
- int i;\r
- \r
- \r
- /* dummy check */\r
- if( surface == NULL )\r
- return;\r
- \r
- /* free bits */\r
- _pico_free( surface->xyz );\r
- _pico_free( surface->normal );\r
- _pico_free( surface->index );\r
- _pico_free( surface->faceNormal );\r
- \r
- /* free arrays */\r
- for( i = 0; i < surface->numSTArrays; i++ )\r
- _pico_free( surface->st[ i ] );\r
- free( surface->st );\r
- for( i = 0; i < surface->numColorArrays; i++ )\r
- _pico_free( surface->color[ i ] );\r
- free( surface->color );\r
- \r
- /* free the surface */\r
- _pico_free( surface );\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoAdjustSurface()\r
-adjusts a surface's memory allocations to handle the requested sizes.\r
-will always grow, never shrink\r
-*/\r
-\r
-int PicoAdjustSurface( picoSurface_t *surface, int numVertexes, int numSTArrays, int numColorArrays, int numIndexes, int numFaceNormals )\r
-{\r
- int i;\r
- \r
- \r
- /* dummy check */\r
- if( surface == NULL )\r
- return 0;\r
- \r
- /* bare minimums */\r
- if( numVertexes < 1 )\r
- numVertexes = 1;\r
- if( numSTArrays < 1 )\r
- numSTArrays = 1;\r
- if( numColorArrays < 1 )\r
- numColorArrays = 1;\r
- if( numIndexes < 1 )\r
- numIndexes = 1;\r
- \r
- /* additional vertexes? */\r
- while( numVertexes > surface->maxVertexes ) /* fix */\r
- {\r
- surface->maxVertexes += PICO_GROW_VERTEXES;\r
- if( !_pico_realloc( (void *) &surface->xyz, surface->numVertexes * sizeof( *surface->xyz ), surface->maxVertexes * sizeof( *surface->xyz ) ) )\r
- return 0;\r
- if( !_pico_realloc( (void *) &surface->normal, surface->numVertexes * sizeof( *surface->normal ), surface->maxVertexes * sizeof( *surface->normal ) ) )\r
- return 0;\r
- for( i = 0; i < surface->numSTArrays; i++ )\r
- if( !_pico_realloc( (void*) &surface->st[ i ], surface->numVertexes * sizeof( *surface->st[ i ] ), surface->maxVertexes * sizeof( *surface->st[ i ] ) ) )\r
- return 0;\r
- for( i = 0; i < surface->numColorArrays; i++ )\r
- if( !_pico_realloc( (void*) &surface->color[ i ], surface->numVertexes * sizeof( *surface->color[ i ] ), surface->maxVertexes * sizeof( *surface->color[ i ] ) ) )\r
- return 0;\r
- }\r
- \r
- /* set vertex count to higher */\r
- if( numVertexes > surface->numVertexes )\r
- surface->numVertexes = numVertexes;\r
- \r
- /* additional st arrays? */\r
- while( numSTArrays > surface->maxSTArrays ) /* fix */\r
- {\r
- surface->maxSTArrays += PICO_GROW_ARRAYS;\r
- if( !_pico_realloc( (void*) &surface->st, surface->numSTArrays * sizeof( *surface->st ), surface->maxSTArrays * sizeof( *surface->st ) ) )\r
- return 0;\r
- while( surface->numSTArrays < numSTArrays )\r
- {\r
- surface->st[ surface->numSTArrays ] = _pico_alloc( surface->maxVertexes * sizeof( *surface->st[ 0 ] ) );\r
- memset( surface->st[ surface->numSTArrays ], 0, surface->maxVertexes * sizeof( *surface->st[ 0 ] ) );\r
- surface->numSTArrays++;\r
- }\r
- }\r
- \r
- /* additional color arrays? */\r
- while( numColorArrays > surface->maxColorArrays ) /* fix */\r
- {\r
- surface->maxColorArrays += PICO_GROW_ARRAYS;\r
- if( !_pico_realloc( (void*) &surface->color, surface->numColorArrays * sizeof( *surface->color ), surface->maxColorArrays * sizeof( *surface->color ) ) )\r
- return 0;\r
- while( surface->numColorArrays < numColorArrays )\r
- {\r
- surface->color[ surface->numColorArrays ] = _pico_alloc( surface->maxVertexes * sizeof( *surface->color[ 0 ] ) );\r
- memset( surface->color[ surface->numColorArrays ], 0, surface->maxVertexes * sizeof( *surface->color[ 0 ] ) );\r
- surface->numColorArrays++;\r
- }\r
- }\r
- \r
- /* additional indexes? */\r
- while( numIndexes > surface->maxIndexes ) /* fix */\r
- {\r
- surface->maxIndexes += PICO_GROW_INDEXES;\r
- if( !_pico_realloc( (void*) &surface->index, surface->numIndexes * sizeof( *surface->index ), surface->maxIndexes * sizeof( *surface->index ) ) )\r
- return 0;\r
- }\r
- \r
- /* set index count to higher */\r
- if( numIndexes > surface->numIndexes )\r
- surface->numIndexes = numIndexes;\r
-\r
- /* additional face normals? */\r
- while( numFaceNormals > surface->maxFaceNormals ) /* fix */\r
- {\r
- surface->maxFaceNormals += PICO_GROW_FACES;\r
- if( !_pico_realloc( (void *) &surface->faceNormal, surface->numFaceNormals * sizeof( *surface->faceNormal ), surface->maxFaceNormals * sizeof( *surface->faceNormal ) ) )\r
- return 0;\r
- }\r
-\r
- /* set face normal count to higher */\r
- if( numFaceNormals > surface->numFaceNormals )\r
- surface->numFaceNormals = numFaceNormals;\r
-\r
- /* return ok */\r
- return 1;\r
-}\r
-\r
-\r
-/* PicoFindSurface:\r
- * Finds first matching named surface in a model.\r
- */\r
-picoSurface_t *PicoFindSurface(\r
- picoModel_t *model, char *name, int caseSensitive )\r
-{\r
- int i;\r
-\r
- /* sanity check */\r
- if( model == NULL || name == NULL )\r
- return NULL;\r
- \r
- /* walk list */\r
- for( i = 0; i < model->numSurfaces; i++ )\r
- {\r
- /* skip null surfaces or surfaces with null names */\r
- if( model->surface[ i ] == NULL ||\r
- model->surface[ i ]->name == NULL )\r
- continue;\r
-\r
- /* compare the surface name with name we're looking for */\r
- if (caseSensitive) {\r
- if( !strcmp(name,model->surface[ i ]->name) )\r
- return model->surface[ i ];\r
- } else {\r
- if( !_pico_stricmp(name,model->surface[ i ]->name) )\r
- return model->surface[ i ];\r
- }\r
- }\r
- /* named surface not found */\r
- return NULL;\r
-}\r
-\r
-\r
-\r
-/*----------------------------------------------------------------------------\r
- PicoSet*() Setter Functions\r
-----------------------------------------------------------------------------*/\r
-\r
-void PicoSetModelName( picoModel_t *model, char *name )\r
-{\r
- if( model == NULL || name == NULL )\r
- return;\r
- if( model->name != NULL )\r
- _pico_free( model->name );\r
-\r
- model->name = _pico_clone_alloc( name,-1 );\r
-}\r
-\r
-\r
-\r
-void PicoSetModelFileName( picoModel_t *model, char *fileName )\r
-{\r
- if( model == NULL || fileName == NULL )\r
- return;\r
- if( model->fileName != NULL )\r
- _pico_free( model->fileName );\r
-\r
- model->fileName = _pico_clone_alloc( fileName,-1 );\r
-}\r
-\r
-\r
-\r
-void PicoSetModelFrameNum( picoModel_t *model, int frameNum )\r
-{\r
- if( model == NULL )\r
- return;\r
- model->frameNum = frameNum;\r
-}\r
-\r
-\r
-\r
-void PicoSetModelNumFrames( picoModel_t *model, int numFrames )\r
-{\r
- if( model == NULL )\r
- return;\r
- model->numFrames = numFrames;\r
-}\r
-\r
-\r
-\r
-void PicoSetModelData( picoModel_t *model, void *data )\r
-{\r
- if( model == NULL )\r
- return;\r
- model->data = data;\r
-}\r
-\r
-\r
-\r
-void PicoSetShaderName( picoShader_t *shader, char *name )\r
-{\r
- if( shader == NULL || name == NULL )\r
- return;\r
- if( shader->name != NULL )\r
- _pico_free( shader->name );\r
-\r
- shader->name = _pico_clone_alloc( name,-1 );\r
-}\r
-\r
-\r
-\r
-void PicoSetShaderMapName( picoShader_t *shader, char *mapName )\r
-{\r
- if( shader == NULL || mapName == NULL )\r
- return;\r
- if( shader->mapName != NULL )\r
- _pico_free( shader->mapName );\r
-\r
- shader->mapName = _pico_clone_alloc( mapName,-1 );\r
-}\r
-\r
-\r
-\r
-void PicoSetShaderAmbientColor( picoShader_t *shader, picoColor_t color )\r
-{\r
- if( shader == NULL || color == NULL )\r
- return;\r
- shader->ambientColor[ 0 ] = color[ 0 ];\r
- shader->ambientColor[ 1 ] = color[ 1 ];\r
- shader->ambientColor[ 2 ] = color[ 2 ];\r
- shader->ambientColor[ 3 ] = color[ 3 ];\r
-}\r
-\r
-\r
-\r
-void PicoSetShaderDiffuseColor( picoShader_t *shader, picoColor_t color )\r
-{\r
- if( shader == NULL || color == NULL )\r
- return;\r
- shader->diffuseColor[ 0 ] = color[ 0 ];\r
- shader->diffuseColor[ 1 ] = color[ 1 ];\r
- shader->diffuseColor[ 2 ] = color[ 2 ];\r
- shader->diffuseColor[ 3 ] = color[ 3 ];\r
-}\r
-\r
-\r
-\r
-void PicoSetShaderSpecularColor( picoShader_t *shader, picoColor_t color )\r
-{\r
- if( shader == NULL || color == NULL )\r
- return;\r
- shader->specularColor[ 0 ] = color[ 0 ];\r
- shader->specularColor[ 1 ] = color[ 1 ];\r
- shader->specularColor[ 2 ] = color[ 2 ];\r
- shader->specularColor[ 3 ] = color[ 3 ];\r
-}\r
-\r
-\r
-\r
-void PicoSetShaderTransparency( picoShader_t *shader, float value )\r
-{\r
- if( shader == NULL )\r
- return;\r
- shader->transparency = value;\r
-\r
- /* cap to 0..1 range */\r
- if (shader->transparency < 0.0)\r
- shader->transparency = 0.0;\r
- if (shader->transparency > 1.0)\r
- shader->transparency = 1.0;\r
-}\r
-\r
-\r
-\r
-void PicoSetShaderShininess( picoShader_t *shader, float value )\r
-{\r
- if( shader == NULL )\r
- return;\r
- shader->shininess = value;\r
-\r
- /* cap to 0..127 range */\r
- if (shader->shininess < 0.0)\r
- shader->shininess = 0.0;\r
- if (shader->shininess > 127.0)\r
- shader->shininess = 127.0;\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceData( picoSurface_t *surface, void *data )\r
-{\r
- if( surface == NULL )\r
- return;\r
- surface->data = data;\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceType( picoSurface_t *surface, picoSurfaceType_t type )\r
-{\r
- if( surface == NULL )\r
- return;\r
- surface->type = type;\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceName( picoSurface_t *surface, char *name )\r
-{\r
- if( surface == NULL || name == NULL )\r
- return;\r
- if( surface->name != NULL )\r
- _pico_free( surface->name );\r
-\r
- surface->name = _pico_clone_alloc( name,-1 );\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceShader( picoSurface_t *surface, picoShader_t *shader )\r
-{\r
- if( surface == NULL )\r
- return;\r
- surface->shader = shader;\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceXYZ( picoSurface_t *surface, int num, picoVec3_t xyz )\r
-{\r
- if( surface == NULL || num < 0 || xyz == NULL )\r
- return;\r
- if( !PicoAdjustSurface( surface, num + 1, 0, 0, 0, 0 ) )\r
- return;\r
- _pico_copy_vec( xyz, surface->xyz[ num ] );\r
- if( surface->model != NULL )\r
- _pico_expand_bounds( xyz, surface->model->mins, surface->model->maxs );\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceNormal( picoSurface_t *surface, int num, picoVec3_t normal )\r
-{\r
- if( surface == NULL || num < 0 || normal == NULL )\r
- return;\r
- if( !PicoAdjustSurface( surface, num + 1, 0, 0, 0, 0 ) )\r
- return;\r
- _pico_copy_vec( normal, surface->normal[ num ] );\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceST( picoSurface_t *surface, int array, int num, picoVec2_t st )\r
-{\r
- if( surface == NULL || num < 0 || st == NULL )\r
- return;\r
- if( !PicoAdjustSurface( surface, num + 1, array + 1, 0, 0, 0 ) )\r
- return;\r
- surface->st[ array ][ num ][ 0 ] = st[ 0 ];\r
- surface->st[ array ][ num ][ 1 ] = st[ 1 ];\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceColor( picoSurface_t *surface, int array, int num, picoColor_t color )\r
-{\r
- if( surface == NULL || num < 0 || color == NULL )\r
- return;\r
- if( !PicoAdjustSurface( surface, num + 1, 0, array + 1, 0, 0 ) )\r
- return;\r
- surface->color[ array ][ num ][ 0 ] = color[ 0 ];\r
- surface->color[ array ][ num ][ 1 ] = color[ 1 ];\r
- surface->color[ array ][ num ][ 2 ] = color[ 2 ];\r
- surface->color[ array ][ num ][ 3 ] = color[ 3 ];\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceIndex( picoSurface_t *surface, int num, picoIndex_t index )\r
-{\r
- if( surface == NULL || num < 0 )\r
- return;\r
- if( !PicoAdjustSurface( surface, 0, 0, 0, num + 1, 0 ) )\r
- return;\r
- surface->index[ num ] = index;\r
-}\r
-\r
-\r
-\r
-void PicoSetSurfaceIndexes( picoSurface_t *surface, int num, picoIndex_t *index, int count )\r
-{\r
- if( num < 0 || index == NULL || count < 1 )\r
- return;\r
- if( !PicoAdjustSurface( surface, 0, 0, 0, num + count, 0 ) )\r
- return;\r
- memcpy( &surface->index[ num ], index, count * sizeof( surface->index[ num ] ) );\r
-}\r
-\r
-\r
-\r
-void PicoSetFaceNormal( picoSurface_t *surface, int num, picoVec3_t normal )\r
-{\r
- if( surface == NULL || num < 0 || normal == NULL )\r
- return;\r
- if( !PicoAdjustSurface( surface, 0, 0, 0, 0, num + 1 ) )\r
- return;\r
- _pico_copy_vec( normal, surface->faceNormal[ num ] );\r
-}\r
-\r
-\r
-void PicoSetSurfaceSpecial( picoSurface_t *surface, int num, int special )\r
-{\r
- if( surface == NULL || num < 0 || num >= PICO_MAX_SPECIAL )\r
- return;\r
- surface->special[ num ] = special;\r
-}\r
-\r
-\r
-\r
-/*----------------------------------------------------------------------------\r
- PicoGet*() Getter Functions\r
-----------------------------------------------------------------------------*/\r
-\r
-char *PicoGetModelName( picoModel_t *model )\r
-{\r
- if( model == NULL )\r
- return NULL;\r
- if( model->name == NULL)\r
- return (char*) "";\r
- return model->name;\r
-}\r
-\r
-\r
-\r
-char *PicoGetModelFileName( picoModel_t *model )\r
-{\r
- if( model == NULL )\r
- return NULL;\r
- if( model->fileName == NULL)\r
- return (char*) "";\r
- return model->fileName;\r
-}\r
-\r
-\r
-\r
-int PicoGetModelFrameNum( picoModel_t *model )\r
-{\r
- if( model == NULL )\r
- return 0;\r
- return model->frameNum;\r
-}\r
-\r
-\r
-\r
-int PicoGetModelNumFrames( picoModel_t *model )\r
-{\r
- if( model == NULL )\r
- return 0;\r
- return model->numFrames;\r
-}\r
-\r
-\r
-\r
-void *PicoGetModelData( picoModel_t *model )\r
-{\r
- if( model == NULL )\r
- return NULL;\r
- return model->data;\r
-}\r
-\r
-\r
-\r
-int PicoGetModelNumShaders( picoModel_t *model )\r
-{\r
- if( model == NULL )\r
- return 0;\r
- return model->numShaders;\r
-}\r
-\r
-\r
-\r
-picoShader_t *PicoGetModelShader( picoModel_t *model, int num )\r
-{\r
- /* a few sanity checks */\r
- if( model == NULL )\r
- return NULL;\r
- if( model->shader == NULL)\r
- return NULL;\r
- if( num < 0 || num >= model->numShaders )\r
- return NULL;\r
- \r
- /* return the shader */\r
- return model->shader[ num ];\r
-}\r
-\r
-\r
-\r
-int PicoGetModelNumSurfaces( picoModel_t *model )\r
-{\r
- if( model == NULL )\r
- return 0;\r
- return model->numSurfaces;\r
-}\r
-\r
-\r
-\r
-picoSurface_t *PicoGetModelSurface( picoModel_t *model, int num )\r
-{\r
- /* a few sanity checks */\r
- if( model == NULL )\r
- return NULL;\r
- if( model->surface == NULL)\r
- return NULL;\r
- if( num < 0 || num >= model->numSurfaces )\r
- return NULL;\r
- \r
- /* return the surface */\r
- return model->surface[ num ];\r
-}\r
-\r
-\r
-\r
-int PicoGetModelTotalVertexes( picoModel_t *model )\r
-{\r
- int i, count;\r
- \r
- \r
- if( model == NULL )\r
- return 0;\r
- if( model->surface == NULL )\r
- return 0;\r
- \r
- count = 0;\r
- for( i = 0; i < model->numSurfaces; i++ )\r
- count += PicoGetSurfaceNumVertexes( model->surface[ i ] );\r
- \r
- return count;\r
-}\r
-\r
-\r
-\r
-int PicoGetModelTotalIndexes( picoModel_t *model )\r
-{\r
- int i, count;\r
- \r
- \r
- if( model == NULL )\r
- return 0;\r
- if( model->surface == NULL )\r
- return 0;\r
- \r
- count = 0;\r
- for( i = 0; i < model->numSurfaces; i++ )\r
- count += PicoGetSurfaceNumIndexes( model->surface[ i ] );\r
- \r
- return count;\r
-}\r
-\r
-\r
-\r
-char *PicoGetShaderName( picoShader_t *shader )\r
-{\r
- if( shader == NULL )\r
- return NULL;\r
- if( shader->name == NULL)\r
- return (char*) "";\r
- return shader->name;\r
-}\r
-\r
-\r
-\r
-char *PicoGetShaderMapName( picoShader_t *shader )\r
-{\r
- if( shader == NULL )\r
- return NULL;\r
- if( shader->mapName == NULL)\r
- return (char*) "";\r
- return shader->mapName;\r
-}\r
-\r
-\r
-\r
-picoByte_t *PicoGetShaderAmbientColor( picoShader_t *shader )\r
-{\r
- if( shader == NULL )\r
- return NULL;\r
- return shader->ambientColor;\r
-}\r
-\r
-\r
-\r
-picoByte_t *PicoGetShaderDiffuseColor( picoShader_t *shader )\r
-{\r
- if( shader == NULL )\r
- return NULL;\r
- return shader->diffuseColor;\r
-}\r
-\r
-\r
-\r
-picoByte_t *PicoGetShaderSpecularColor( picoShader_t *shader )\r
-{\r
- if( shader == NULL )\r
- return NULL;\r
- return shader->specularColor;\r
-}\r
-\r
-\r
-\r
-float PicoGetShaderTransparency( picoShader_t *shader )\r
-{\r
- if( shader == NULL )\r
- return 0.0f;\r
- return shader->transparency;\r
-}\r
-\r
-\r
-\r
-float PicoGetShaderShininess( picoShader_t *shader )\r
-{\r
- if( shader == NULL )\r
- return 0.0f;\r
- return shader->shininess;\r
-}\r
-\r
-\r
-\r
-void *PicoGetSurfaceData( picoSurface_t *surface )\r
-{\r
- if( surface == NULL )\r
- return NULL;\r
- return surface->data;\r
-}\r
-\r
-\r
-\r
-picoSurfaceType_t PicoGetSurfaceType( picoSurface_t *surface )\r
-{\r
- if( surface == NULL )\r
- return PICO_BAD;\r
- return surface->type;\r
-}\r
-\r
-\r
-\r
-char *PicoGetSurfaceName( picoSurface_t *surface )\r
-{\r
- if( surface == NULL )\r
- return NULL;\r
- if( surface->name == NULL )\r
- return (char*) "";\r
- return surface->name;\r
-}\r
-\r
-\r
-\r
-picoShader_t *PicoGetSurfaceShader( picoSurface_t *surface )\r
-{\r
- if( surface == NULL )\r
- return NULL;\r
- return surface->shader;\r
-}\r
-\r
-\r
-\r
-int PicoGetSurfaceNumVertexes( picoSurface_t *surface )\r
-{\r
- if( surface == NULL )\r
- return 0;\r
- return surface->numVertexes;\r
-}\r
-\r
-\r
-\r
-picoVec_t *PicoGetSurfaceXYZ( picoSurface_t *surface, int num )\r
-{\r
- if( surface == NULL || num < 0 || num > surface->numVertexes )\r
- return NULL;\r
- return surface->xyz[ num ];\r
-}\r
-\r
-\r
-\r
-picoVec_t *PicoGetSurfaceNormal( picoSurface_t *surface, int num )\r
-{\r
- if( surface == NULL || num < 0 || num > surface->numVertexes )\r
- return NULL;\r
- return surface->normal[ num ];\r
-}\r
-\r
-\r
-\r
-picoVec_t *PicoGetSurfaceST( picoSurface_t *surface, int array, int num )\r
-{\r
- if( surface == NULL || array < 0 || array > surface->numSTArrays || num < 0 || num > surface->numVertexes )\r
- return NULL;\r
- return surface->st[ array ][ num ];\r
-}\r
-\r
-\r
-\r
-picoByte_t *PicoGetSurfaceColor( picoSurface_t *surface, int array, int num )\r
-{\r
- if( surface == NULL || array < 0 || array > surface->numColorArrays || num < 0 || num > surface->numVertexes )\r
- return NULL;\r
- return surface->color[ array ][ num ];\r
-}\r
-\r
-\r
-\r
-int PicoGetSurfaceNumIndexes( picoSurface_t *surface )\r
-{\r
- if( surface == NULL )\r
- return 0;\r
- return surface->numIndexes;\r
-}\r
-\r
-\r
-\r
-picoIndex_t PicoGetSurfaceIndex( picoSurface_t *surface, int num )\r
-{\r
- if( surface == NULL || num < 0 || num > surface->numIndexes )\r
- return 0;\r
- return surface->index[ num ];\r
-}\r
-\r
-\r
-\r
-picoIndex_t *PicoGetSurfaceIndexes( picoSurface_t *surface, int num )\r
-{\r
- if( surface == NULL || num < 0 || num > surface->numIndexes )\r
- return NULL;\r
- return &surface->index[ num ];\r
-}\r
-\r
-\r
-picoVec_t *PicoGetFaceNormal( picoSurface_t *surface, int num )\r
-{\r
- if( surface == NULL || num < 0 || num > surface->numFaceNormals )\r
- return NULL;\r
- return surface->faceNormal[ num ];\r
-}\r
-\r
-\r
-int PicoGetSurfaceSpecial( picoSurface_t *surface, int num )\r
-{\r
- if( surface == NULL || num < 0 || num >= PICO_MAX_SPECIAL )\r
- return 0;\r
- return surface->special[ num ];\r
-}\r
-\r
-\r
-\r
-/* ----------------------------------------------------------------------------\r
-hashtable related functions\r
----------------------------------------------------------------------------- */\r
-\r
-/* hashtable code for faster vertex lookups */\r
-//#define HASHTABLE_SIZE 32768 // 2048 /* power of 2, use & */\r
-#define HASHTABLE_SIZE 7919 // 32749 // 2039 /* prime, use % */\r
-\r
-int PicoGetHashTableSize( void )\r
-{\r
- return HASHTABLE_SIZE;\r
-}\r
-\r
-#define HASH_USE_EPSILON\r
-\r
-#ifdef HASH_USE_EPSILON\r
-#define HASH_XYZ_EPSILON 0.01f\r
-#define HASH_XYZ_EPSILONSPACE_MULTIPLIER 1.f / HASH_XYZ_EPSILON\r
-#define HASH_ST_EPSILON 0.0001f\r
-#define HASH_NORMAL_EPSILON 0.02f\r
-#endif\r
-\r
-unsigned int PicoVertexCoordGenerateHash( picoVec3_t xyz )\r
-{\r
- unsigned int hash = 0;\r
-\r
-#ifndef HASH_USE_EPSILON\r
- hash += ~(*((unsigned int*) &xyz[ 0 ]) << 15);\r
- hash ^= (*((unsigned int*) &xyz[ 0 ]) >> 10);\r
- hash += (*((unsigned int*) &xyz[ 1 ]) << 3);\r
- hash ^= (*((unsigned int*) &xyz[ 1 ]) >> 6);\r
- hash += ~(*((unsigned int*) &xyz[ 2 ]) << 11);\r
- hash ^= (*((unsigned int*) &xyz[ 2 ]) >> 16);\r
-#else\r
- picoVec3_t xyz_epsilonspace;\r
-\r
- _pico_scale_vec( xyz, HASH_XYZ_EPSILONSPACE_MULTIPLIER, xyz_epsilonspace );\r
- xyz_epsilonspace[ 0 ] = (float)floor(xyz_epsilonspace[ 0 ]);\r
- xyz_epsilonspace[ 1 ] = (float)floor(xyz_epsilonspace[ 1 ]);\r
- xyz_epsilonspace[ 2 ] = (float)floor(xyz_epsilonspace[ 2 ]);\r
-\r
- hash += ~(*((unsigned int*) &xyz_epsilonspace[ 0 ]) << 15);\r
- hash ^= (*((unsigned int*) &xyz_epsilonspace[ 0 ]) >> 10);\r
- hash += (*((unsigned int*) &xyz_epsilonspace[ 1 ]) << 3);\r
- hash ^= (*((unsigned int*) &xyz_epsilonspace[ 1 ]) >> 6);\r
- hash += ~(*((unsigned int*) &xyz_epsilonspace[ 2 ]) << 11);\r
- hash ^= (*((unsigned int*) &xyz_epsilonspace[ 2 ]) >> 16);\r
-#endif\r
-\r
- //hash = hash & (HASHTABLE_SIZE-1);\r
- hash = hash % (HASHTABLE_SIZE);\r
- return hash;\r
-}\r
-\r
-picoVertexCombinationHash_t **PicoNewVertexCombinationHashTable( void )\r
-{\r
- picoVertexCombinationHash_t **hashTable = _pico_alloc( HASHTABLE_SIZE * sizeof(picoVertexCombinationHash_t*) );\r
-\r
- memset( hashTable, 0, HASHTABLE_SIZE * sizeof(picoVertexCombinationHash_t*) );\r
-\r
- return hashTable;\r
-}\r
-\r
-void PicoFreeVertexCombinationHashTable( picoVertexCombinationHash_t **hashTable )\r
-{\r
- int i;\r
- picoVertexCombinationHash_t *vertexCombinationHash;\r
- picoVertexCombinationHash_t *nextVertexCombinationHash;\r
-\r
- /* dummy check */\r
- if (hashTable == NULL)\r
- return;\r
-\r
- for( i = 0; i < HASHTABLE_SIZE; i++ )\r
- {\r
- if (hashTable[ i ])\r
- {\r
- nextVertexCombinationHash = NULL;\r
-\r
- for( vertexCombinationHash = hashTable[ i ]; vertexCombinationHash; vertexCombinationHash = nextVertexCombinationHash )\r
- {\r
- nextVertexCombinationHash = vertexCombinationHash->next;\r
- if (vertexCombinationHash->data != NULL)\r
- {\r
- _pico_free( vertexCombinationHash->data );\r
- }\r
- _pico_free( vertexCombinationHash );\r
- }\r
- }\r
- }\r
-\r
- _pico_free( hashTable );\r
-}\r
-\r
-picoVertexCombinationHash_t *PicoFindVertexCombinationInHashTable( picoVertexCombinationHash_t **hashTable, picoVec3_t xyz, picoVec3_t normal, picoVec3_t st, picoColor_t color )\r
-{\r
- unsigned int hash;\r
- picoVertexCombinationHash_t *vertexCombinationHash;\r
-\r
- /* dumy check */\r
- if (hashTable == NULL || xyz == NULL || normal == NULL || st == NULL || color == NULL )\r
- return NULL;\r
-\r
- hash = PicoVertexCoordGenerateHash( xyz );\r
-\r
- for( vertexCombinationHash = hashTable[ hash ]; vertexCombinationHash; vertexCombinationHash = vertexCombinationHash->next )\r
- {\r
-#ifndef HASH_USE_EPSILON\r
- /* check xyz */\r
- if( (vertexCombinationHash->vcd.xyz[ 0 ] != xyz[ 0 ] || vertexCombinationHash->vcd.xyz[ 1 ] != xyz[ 1 ] || vertexCombinationHash->vcd.xyz[ 2 ] != xyz[ 2 ]) )\r
- continue;\r
-\r
- /* check normal */\r
- if( (vertexCombinationHash->vcd.normal[ 0 ] != normal[ 0 ] || vertexCombinationHash->vcd.normal[ 1 ] != normal[ 1 ] || vertexCombinationHash->vcd.normal[ 2 ] != normal[ 2 ]) )\r
- continue;\r
- \r
- /* check st */\r
- if( vertexCombinationHash->vcd.st[ 0 ] != st[ 0 ] || vertexCombinationHash->vcd.st[ 1 ] != st[ 1 ] )\r
- continue;\r
-#else\r
- /* check xyz */\r
- if( ( fabs(xyz[ 0 ] - vertexCombinationHash->vcd.xyz[ 0 ]) ) > HASH_XYZ_EPSILON ||\r
- ( fabs(xyz[ 1 ] - vertexCombinationHash->vcd.xyz[ 1 ]) ) > HASH_XYZ_EPSILON ||\r
- ( fabs(xyz[ 2 ] - vertexCombinationHash->vcd.xyz[ 2 ]) ) > HASH_XYZ_EPSILON )\r
- continue;\r
-\r
- /* check normal */\r
- if( ( fabs(normal[ 0 ] - vertexCombinationHash->vcd.normal[ 0 ]) ) > HASH_NORMAL_EPSILON ||\r
- ( fabs(normal[ 1 ] - vertexCombinationHash->vcd.normal[ 1 ]) ) > HASH_NORMAL_EPSILON ||\r
- ( fabs(normal[ 2 ] - vertexCombinationHash->vcd.normal[ 2 ]) ) > HASH_NORMAL_EPSILON )\r
- continue;\r
- \r
- /* check st */\r
- if( ( fabs(st[ 0 ] - vertexCombinationHash->vcd.st[ 0 ]) ) > HASH_ST_EPSILON ||\r
- ( fabs(st[ 1 ] - vertexCombinationHash->vcd.st[ 1 ]) ) > HASH_ST_EPSILON )\r
- continue;\r
-#endif\r
-\r
- /* check color */\r
- if( *((int*) vertexCombinationHash->vcd.color) != *((int*) color) )\r
- continue;\r
-\r
- /* gotcha */\r
- return vertexCombinationHash;\r
- }\r
-\r
- return NULL;\r
-}\r
-\r
-picoVertexCombinationHash_t *PicoAddVertexCombinationToHashTable( picoVertexCombinationHash_t **hashTable, picoVec3_t xyz, picoVec3_t normal, picoVec3_t st, picoColor_t color, picoIndex_t index )\r
-{\r
- unsigned int hash;\r
- picoVertexCombinationHash_t *vertexCombinationHash;\r
-\r
- /* dumy check */\r
- if (hashTable == NULL || xyz == NULL || normal == NULL || st == NULL || color == NULL )\r
- return NULL;\r
-\r
- vertexCombinationHash = _pico_alloc( sizeof(picoVertexCombinationHash_t) );\r
-\r
- if (!vertexCombinationHash)\r
- return NULL;\r
-\r
- hash = PicoVertexCoordGenerateHash( xyz );\r
-\r
- _pico_copy_vec( xyz, vertexCombinationHash->vcd.xyz );\r
- _pico_copy_vec( normal, vertexCombinationHash->vcd.normal );\r
- _pico_copy_vec2( st, vertexCombinationHash->vcd.st );\r
- _pico_copy_color( color, vertexCombinationHash->vcd.color );\r
- vertexCombinationHash->index = index;\r
- vertexCombinationHash->data = NULL;\r
- vertexCombinationHash->next = hashTable[ hash ];\r
- hashTable[ hash ] = vertexCombinationHash;\r
-\r
- return vertexCombinationHash;\r
-}\r
-\r
-/* ----------------------------------------------------------------------------\r
-specialized routines\r
----------------------------------------------------------------------------- */\r
-\r
-/*\r
-PicoFindSurfaceVertex()\r
-finds a vertex matching the set parameters\r
-fixme: needs non-naive algorithm\r
-*/\r
-\r
-int PicoFindSurfaceVertexNum( picoSurface_t *surface, picoVec3_t xyz, picoVec3_t normal, int numSTs, picoVec2_t *st, int numColors, picoColor_t *color )\r
-{\r
- int i, j;\r
- \r
- \r
- /* dummy check */\r
- if( surface == NULL || surface->numVertexes <= 0 )\r
- return -1;\r
- \r
- /* walk vertex list */\r
- for( i = 0; i < surface->numVertexes; i++ )\r
- {\r
- /* check xyz */\r
- if( xyz != NULL && (surface->xyz[ i ][ 0 ] != xyz[ 0 ] || surface->xyz[ i ][ 1 ] != xyz[ 1 ] || surface->xyz[ i ][ 2 ] != xyz[ 2 ]) )\r
- continue;\r
- \r
- /* check normal */\r
- if( normal != NULL && (surface->normal[ i ][ 0 ] != normal[ 0 ] || surface->normal[ i ][ 1 ] != normal[ 1 ] || surface->normal[ i ][ 2 ] != normal[ 2 ]) )\r
- continue;\r
- \r
- /* check st */\r
- if( numSTs > 0 && st != NULL )\r
- {\r
- for( j = 0; j < numSTs; j++ )\r
- {\r
- if( surface->st[ j ][ i ][ 0 ] != st[ j ][ 0 ] || surface->st[ j ][ i ][ 1 ] != st[ j ][ 1 ] )\r
- break;\r
- }\r
- if( j != numSTs )\r
- continue;\r
- }\r
- \r
- /* check color */\r
- if( numColors > 0 && color != NULL )\r
- {\r
- for( j = 0; j < numSTs; j++ )\r
- {\r
- if( *((int*) surface->color[ j ]) != *((int*) color[ j ]) )\r
- break;\r
- }\r
- if( j != numColors )\r
- continue;\r
- }\r
- \r
- /* vertex matches */\r
- return i;\r
- }\r
- \r
- /* nada */\r
- return -1;\r
-}\r
-\r
-\r
-\r
-/*\r
-PicoFixSurfaceNormals()\r
-fixes broken normals (certain formats bork normals)\r
-*/\r
-\r
-#define MAX_NORMAL_VOTES 128\r
-#define EQUAL_NORMAL_EPSILON 0.01\r
-#define BAD_NORMAL_EPSILON 0.5\r
-\r
-void PicoFixSurfaceNormals( picoSurface_t *surface )\r
-{\r
- int i, j, k, a, b, c, numVotes, faceIndex;\r
- picoVec3_t votes[ MAX_NORMAL_VOTES ];\r
- picoVec3_t *normals, diff;\r
- picoVec4_t plane;\r
- \r
- \r
- /* dummy check */\r
- if( surface == NULL || surface->numVertexes == 0 )\r
- return;\r
- \r
- /* fixme: handle other surface types */\r
- if( surface->type != PICO_TRIANGLES )\r
- return;\r
- \r
- /* allocate normal storage */\r
- normals = _pico_alloc( surface->numVertexes * sizeof( *normals ) );\r
- if( normals == NULL )\r
- {\r
- _pico_printf( PICO_ERROR, "PicoFixSurfaceNormals: Unable to allocate memory for temporary normal storage" );\r
- return;\r
- }\r
- \r
- /* zero it out */\r
- memset( normals, 0, surface->numVertexes * sizeof( *normals ) );\r
- \r
- /* walk vertex list */\r
- for( i = 0; i < surface->numVertexes; i++ )\r
- {\r
- /* zero out votes */\r
- numVotes = 0;\r
- \r
- /* find all the triangles that reference this vertex */\r
- for( j = 0, faceIndex = 0; j < surface->numIndexes; j += 3, faceIndex++ )\r
- {\r
- /* get triangle */\r
- a = surface->index[ j ];\r
- b = surface->index[ j + 1 ];\r
- c = surface->index[ j + 2 ];\r
- \r
- /* ignore degenerate triangles */\r
- if( a == b || b == c || c == a )\r
- continue;\r
- \r
- /* ignore indexes out of range */\r
- if( a < 0 || a >= surface->numVertexes ||\r
- b < 0 || b >= surface->numVertexes ||\r
- c < 0 || c >= surface->numVertexes )\r
- continue;\r
- \r
- /* test triangle */\r
- if( a == i || b == i || c == i )\r
- {\r
- /* if this surface has face normals */\r
- if( surface->numFaceNormals && faceIndex < surface->numFaceNormals )\r
- {\r
- _pico_copy_vec( surface->faceNormal[ faceIndex ], plane );\r
- if( plane[ 0 ] == 0.f && plane[ 1 ] == 0.f && plane[ 2 ] == 0.f )\r
- {\r
- /* if null normal, make plane from the 3 points */\r
- if( _pico_calc_plane( plane, surface->xyz[ a ], surface->xyz[ b ], surface->xyz[ c ] ) == 0 )\r
- {\r
- continue;\r
- }\r
- }\r
- }\r
- /* make a plane from the 3 points */\r
- else if( _pico_calc_plane( plane, surface->xyz[ a ], surface->xyz[ b ], surface->xyz[ c ] ) == 0 )\r
- {\r
- continue;\r
- }\r
-\r
- /* see if this normal has already been voted */\r
- for( k = 0; k < numVotes; k++ )\r
- {\r
- _pico_subtract_vec( plane, votes[ k ], diff );\r
- if( fabs( diff[ 0 ] ) < EQUAL_NORMAL_EPSILON &&\r
- fabs( diff[ 1 ] ) < EQUAL_NORMAL_EPSILON &&\r
- fabs( diff[ 2 ] ) < EQUAL_NORMAL_EPSILON )\r
- break;\r
- }\r
- \r
- /* add a new vote? */\r
- if( k == numVotes && numVotes < MAX_NORMAL_VOTES )\r
- {\r
- _pico_copy_vec( plane, votes[ numVotes ] );\r
- numVotes++;\r
- }\r
- }\r
- }\r
- \r
- /* tally votes */\r
- if( numVotes > 0 )\r
- {\r
- /* create average normal */\r
- _pico_zero_vec( normals[ i ] );\r
- for( k = 0; k < numVotes; k++ )\r
- _pico_add_vec( normals[ i ], votes[ k ], normals[ i ] );\r
- \r
- /* normalize it */\r
- if( _pico_normalize_vec( normals[ i ] ) )\r
- {\r
- /* test against actual normal */\r
- if( fabs( _pico_dot_vec( normals[ i ], surface->normal[ i ] ) - 1 ) > BAD_NORMAL_EPSILON )\r
- {\r
- //% printf( "Normal %8d: (%f %f %f) -> (%f %f %f)\n", i,\r
- //% surface->normal[ i ][ 0 ], surface->normal[ i ][ 1 ], surface->normal[ i ][ 2 ],\r
- //% normals[ i ][ 0 ], normals[ i ][ 1 ], normals[ i ][ 2 ] );\r
- _pico_copy_vec( normals[ i ], surface->normal[ i ] );\r
- }\r
- }\r
- }\r
- }\r
- \r
- /* free normal storage */\r
- _pico_free( normals );\r
-}\r
-\r
-\r
-\r
-\r
-/*\r
-PicoRemapModel() - sea\r
-remaps model material/etc. information using the remappings\r
-contained in the given 'remapFile' (full path to the ascii file to open)\r
-returns 1 on success or 0 on error\r
-*/\r
-\r
-#define _prm_error_return \\r
-{ \\r
- _pico_free_parser( p ); \\r
- _pico_free_file( remapBuffer ); \\r
- return 0; \\r
-}\r
-\r
-int PicoRemapModel( picoModel_t *model, char *remapFile )\r
-{\r
- picoParser_t *p;\r
- picoByte_t *remapBuffer;\r
- int remapBufSize;\r
- \r
- \r
- /* sanity checks */\r
- if( model == NULL || remapFile == NULL )\r
- return 0;\r
- \r
- /* load remap file contents */\r
- _pico_load_file( remapFile,&remapBuffer,&remapBufSize );\r
- \r
- /* check result */\r
- if( remapBufSize == 0 )\r
- return 1; /* file is empty: no error */\r
- if( remapBufSize < 0 )\r
- return 0; /* load failed: error */\r
- \r
- /* create a new pico parser */\r
- p = _pico_new_parser( remapBuffer, remapBufSize );\r
- if (p == NULL)\r
- {\r
- /* ram is really cheap nowadays... */\r
- _prm_error_return;\r
- }\r
- \r
- /* doo teh parse */\r
- while( 1 )\r
- {\r
- /* get next token in remap file */\r
- if (!_pico_parse( p,1 ))\r
- break;\r
-\r
- /* skip over c++ style comment lines */\r
- if (!_pico_stricmp(p->token,"//"))\r
- {\r
- _pico_parse_skip_rest( p );\r
- continue;\r
- }\r
- \r
- /* block for quick material shader name remapping */\r
- /* materials { "m" (=>|->|=) "s" } */\r
- if( !_pico_stricmp(p->token, "materials" ) )\r
- {\r
- int level = 1;\r
-\r
- /* check bracket */\r
- if (!_pico_parse_check( p,1,"{" ))\r
- _prm_error_return;\r
-\r
- /* process assignments */\r
- while( 1 )\r
- {\r
- picoShader_t *shader;\r
- char *materialName;\r
- \r
- \r
- /* get material name */\r
- if (_pico_parse( p,1 ) == NULL) break;\r
- if (!strlen(p->token)) continue;\r
- materialName = _pico_clone_alloc( p->token,-1 );\r
- if (materialName == NULL)\r
- _prm_error_return;\r
-\r
- /* handle levels */\r
- if (p->token[0] == '{') level++;\r
- if (p->token[0] == '}') level--;\r
- if (!level) break;\r
-\r
- /* get next token (assignment token or shader name) */\r
- if (!_pico_parse( p,0 ))\r
- {\r
- _pico_free( materialName );\r
- _prm_error_return;\r
- }\r
- /* skip assignment token (if present) */\r
- if (!strcmp(p->token,"=>") ||\r
- !strcmp(p->token,"->") ||\r
- !strcmp(p->token,"="))\r
- {\r
- /* simply grab the next token */\r
- if (!_pico_parse( p,0 ))\r
- {\r
- _pico_free( materialName );\r
- _prm_error_return;\r
- }\r
- }\r
- /* try to find material by name */\r
- shader = PicoFindShader( model,materialName,0 );\r
-\r
- /* we've found a material matching the name */\r
- if (shader != NULL)\r
- {\r
- PicoSetShaderName( shader,p->token );\r
- }\r
- /* free memory used by material name */\r
- _pico_free( materialName );\r
-\r
- /* skip rest */\r
- _pico_parse_skip_rest( p );\r
- }\r
- }\r
- /* block for detailed single material remappings */\r
- /* materials[ "m" ] { key data... } */\r
- else if (!_pico_stricmp(p->token,"materials["))\r
- {\r
- picoShader_t *shader;\r
- char *tempMaterialName;\r
- int level = 1;\r
-\r
- /* get material name */\r
- if (!_pico_parse( p,0 ))\r
- _prm_error_return;\r
-\r
- /* temporary copy of material name */\r
- tempMaterialName = _pico_clone_alloc( p->token,-1 );\r
- if (tempMaterialName == NULL)\r
- _prm_error_return;\r
-\r
- /* check square closing bracket */\r
- if (!_pico_parse_check( p,0,"]" ))\r
- _prm_error_return; \r
-\r
- /* try to find material by name */\r
- shader = PicoFindShader( model,tempMaterialName,0 );\r
-\r
- /* free memory used by temporary material name */\r
- _pico_free( tempMaterialName );\r
-\r
- /* we haven't found a material matching the name */\r
- /* so we simply skip the braced section now and */\r
- /* continue parsing with the next main token */\r
- if (shader == NULL)\r
- {\r
- _pico_parse_skip_braced( p );\r
- continue;\r
- }\r
- /* check opening bracket */\r
- if (!_pico_parse_check( p,1,"{" ))\r
- _prm_error_return;\r
-\r
- /* process material info keys */\r
- while( 1 )\r
- {\r
- /* get key name */\r
- if (_pico_parse( p,1 ) == NULL) break;\r
- if (!strlen(p->token)) continue;\r
-\r
- /* handle levels */\r
- if (p->token[0] == '{') level++;\r
- if (p->token[0] == '}') level--;\r
- if (!level) break;\r
-\r
- /* remap shader name */\r
- if (!_pico_stricmp(p->token,"shader"))\r
- {\r
- if (!_pico_parse( p,0 )) _prm_error_return;\r
- PicoSetShaderName( shader,p->token );\r
- }\r
- /* remap shader map name */\r
- else if (!_pico_stricmp(p->token,"mapname"))\r
- {\r
- if (!_pico_parse( p,0 )) _prm_error_return;\r
- PicoSetShaderMapName( shader,p->token );\r
- }\r
- /* remap shader's ambient color */\r
- else if (!_pico_stricmp(p->token,"ambient"))\r
- {\r
- picoColor_t color;\r
- picoVec3_t v;\r
-\r
- /* get vector from parser */\r
- if (!_pico_parse_vec( p,v )) _prm_error_return;\r
-\r
- /* store as color */\r
- color[ 0 ] = (picoByte_t)v[ 0 ];\r
- color[ 1 ] = (picoByte_t)v[ 1 ];\r
- color[ 2 ] = (picoByte_t)v[ 2 ];\r
-\r
- /* set new ambient color */\r
- PicoSetShaderAmbientColor( shader,color );\r
- }\r
- /* remap shader's diffuse color */\r
- else if (!_pico_stricmp(p->token,"diffuse"))\r
- {\r
- picoColor_t color;\r
- picoVec3_t v;\r
-\r
- /* get vector from parser */\r
- if (!_pico_parse_vec( p,v )) _prm_error_return;\r
-\r
- /* store as color */\r
- color[ 0 ] = (picoByte_t)v[ 0 ];\r
- color[ 1 ] = (picoByte_t)v[ 1 ];\r
- color[ 2 ] = (picoByte_t)v[ 2 ];\r
-\r
- /* set new ambient color */\r
- PicoSetShaderDiffuseColor( shader,color );\r
- }\r
- /* remap shader's specular color */\r
- else if (!_pico_stricmp(p->token,"specular"))\r
- {\r
- picoColor_t color;\r
- picoVec3_t v;\r
-\r
- /* get vector from parser */\r
- if (!_pico_parse_vec( p,v )) _prm_error_return;\r
-\r
- /* store as color */\r
- color[ 0 ] = (picoByte_t)v[ 0 ];\r
- color[ 1 ] = (picoByte_t)v[ 1 ];\r
- color[ 2 ] = (picoByte_t)v[ 2 ];\r
-\r
- /* set new ambient color */\r
- PicoSetShaderSpecularColor( shader,color );\r
- }\r
- /* skip rest */\r
- _pico_parse_skip_rest( p );\r
- }\r
- }\r
- /* end 'materials[' */\r
- }\r
- \r
- /* free both parser and file buffer */\r
- _pico_free_parser( p );\r
- _pico_free_file( remapBuffer );\r
-\r
- /* return with success */\r
- return 1;\r
-}\r
-\r
-\r
-/*\r
-PicoAddTriangleToModel() - jhefty\r
-A nice way to add individual triangles to the model.\r
-Chooses an appropriate surface based on the shader, or adds a new surface if necessary\r
-*/\r
-\r
-void PicoAddTriangleToModel( picoModel_t *model, picoVec3_t** xyz, picoVec3_t** normals, \r
- int numSTs, picoVec2_t **st, int numColors, picoColor_t **colors,\r
- picoShader_t* shader )\r
-{\r
- int i,j;\r
- int vertDataIndex;\r
- picoSurface_t* workSurface = NULL;\r
-\r
- /* see if a surface already has the shader */\r
- for ( i = 0 ; i < model->numSurfaces ; i++ )\r
- {\r
- workSurface = model->surface[i];\r
- if ( workSurface->shader == shader )\r
- { \r
- break;\r
- }\r
- }\r
-\r
- /* no surface uses this shader yet, so create a new surface */\r
- if ( !workSurface || i >=model->numSurfaces )\r
- {\r
- /* create a new surface in the model for the unique shader */\r
- workSurface = PicoNewSurface(model);\r
- if ( !workSurface )\r
- {\r
- _pico_printf ( PICO_ERROR , "Could not allocate a new surface!\n" );\r
- return;\r
- }\r
-\r
- /* do surface setup */\r
- PicoSetSurfaceType( workSurface, PICO_TRIANGLES );\r
- PicoSetSurfaceName( workSurface, shader->name );\r
- PicoSetSurfaceShader( workSurface, shader );\r
- }\r
-\r
- /* add the triangle data to the surface */\r
- for ( i = 0 ; i < 3 ; i++ ) \r
- {\r
- /* get the next free spot in the index array */\r
- int newVertIndex = PicoGetSurfaceNumIndexes ( workSurface );\r
-\r
- /* get the index of the vertex that we're going to store at newVertIndex */\r
- vertDataIndex = PicoFindSurfaceVertexNum ( workSurface , *xyz[i] , *normals[i] , numSTs , st[i] , numColors , colors[i]);\r
-\r
- /* the vertex wasn't found, so create a new vertex in the pool from the data we have */\r
- if ( vertDataIndex == -1 )\r
- { \r
- /* find the next spot for a new vertex */\r
- vertDataIndex = PicoGetSurfaceNumVertexes ( workSurface ); \r
-\r
- /* assign the data to it */\r
- PicoSetSurfaceXYZ ( workSurface ,vertDataIndex , *xyz[i] );\r
- PicoSetSurfaceNormal ( workSurface , vertDataIndex , *normals[i] ); \r
-\r
- /* make sure to copy over all available ST's and colors for the vertex */\r
- for ( j = 0 ; j < numColors ; j++ )\r
- {\r
- PicoSetSurfaceColor( workSurface , j , vertDataIndex , colors[i][j] );\r
- }\r
- for ( j = 0 ; j < numSTs ; j++ )\r
- {\r
- PicoSetSurfaceST ( workSurface , j , vertDataIndex , st[i][j] );\r
- }\r
- }\r
-\r
- /* add this vertex to the triangle */ \r
- PicoSetSurfaceIndex ( workSurface , newVertIndex , vertDataIndex );\r
- } \r
-}\r
+/* -----------------------------------------------------------------------------
+
+ PicoModel Library
+
+ Copyright (c) 2002, Randy Reddig & seaw0lf
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+ are permitted provided that the following conditions are met:
+
+ Redistributions of source code must retain the above copyright notice, this list
+ of conditions and the following disclaimer.
+
+ Redistributions in binary form must reproduce the above copyright notice, this
+ list of conditions and the following disclaimer in the documentation and/or
+ other materials provided with the distribution.
+
+ Neither the names of the copyright holders nor the names of its contributors may
+ be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ ----------------------------------------------------------------------------- */
+
+
+
+/* marker */
+#define PICOMODEL_C
+
+
+
+/* dependencies */
+#include "picointernal.h"
+
+
+
+/*
+ PicoInit()
+ initializes the picomodel library
+ */
+
+int PicoInit( void ){
+ /* successfully initialized -sea */
+ return 1;
+}
+
+
+
+/*
+ PicoShutdown()
+ shuts the pico model library down
+ */
+
+void PicoShutdown( void ){
+ /* do something interesting here in the future */
+ return;
+}
+
+
+
+/*
+ PicoError()
+ returns last picomodel error code (see PME_* defines)
+ */
+
+int PicoError( void ){
+ /* todo: do something here */
+ return 0;
+}
+
+
+
+/*
+ PicoSetMallocFunc()
+ sets the ptr to the malloc function
+ */
+
+void PicoSetMallocFunc( void *( *func )( size_t ) ){
+ if ( func != NULL ) {
+ _pico_ptr_malloc = func;
+ }
+}
+
+
+
+/*
+ PicoSetFreeFunc()
+ sets the ptr to the free function
+ */
+
+void PicoSetFreeFunc( void ( *func )( void* ) ){
+ if ( func != NULL ) {
+ _pico_ptr_free = func;
+ }
+}
+
+
+
+/*
+ PicoSetLoadFileFunc()
+ sets the ptr to the file load function
+ */
+
+void PicoSetLoadFileFunc( void ( *func )( const char*, unsigned char**, int* ) ){
+ if ( func != NULL ) {
+ _pico_ptr_load_file = func;
+ }
+}
+
+
+
+/*
+ PicoSetFreeFileFunc()
+ sets the ptr to the free function
+ */
+
+void PicoSetFreeFileFunc( void ( *func )( void* ) ){
+ if ( func != NULL ) {
+ _pico_ptr_free_file = func;
+ }
+}
+
+
+
+/*
+ PicoSetPrintFunc()
+ sets the ptr to the print function
+ */
+
+void PicoSetPrintFunc( void ( *func )( int, const char* ) ){
+ if ( func != NULL ) {
+ _pico_ptr_print = func;
+ }
+}
+
+
+
+picoModel_t *PicoModuleLoadModel( const picoModule_t* pm, const char* fileName, picoByte_t* buffer, int bufSize, int frameNum ){
+ char *modelFileName, *remapFileName;
+
+ /* see whether this module can load the model file or not */
+ if ( pm->canload( fileName, buffer, bufSize ) == PICO_PMV_OK ) {
+ /* use loader provided by module to read the model data */
+ picoModel_t* model = pm->load( fileName, frameNum, buffer, bufSize );
+ if ( model == NULL ) {
+ _pico_free_file( buffer );
+ return NULL;
+ }
+
+ /* assign pointer to file format module */
+ model->module = pm;
+
+ /* get model file name */
+ modelFileName = PicoGetModelFileName( model );
+
+ /* apply model remappings from <model>.remap */
+ if ( strlen( modelFileName ) ) {
+ /* alloc copy of model file name */
+ remapFileName = _pico_alloc( strlen( modelFileName ) + 20 );
+ if ( remapFileName != NULL ) {
+ /* copy model file name and change extension */
+ strcpy( remapFileName, modelFileName );
+ _pico_setfext( remapFileName, "remap" );
+
+ /* try to remap model; we don't handle the result */
+ PicoRemapModel( model, remapFileName );
+
+ /* free the remap file name string */
+ _pico_free( remapFileName );
+ }
+ }
+
+ return model;
+ }
+
+ return NULL;
+}
+
+/*
+ PicoLoadModel()
+ the meat and potatoes function
+ */
+
+picoModel_t *PicoLoadModel( const char *fileName, int frameNum ){
+ const picoModule_t **modules, *pm;
+ picoModel_t *model;
+ picoByte_t *buffer;
+ int bufSize;
+
+
+ /* init */
+ model = NULL;
+
+ /* make sure we've got a file name */
+ if ( fileName == NULL ) {
+ _pico_printf( PICO_ERROR, "PicoLoadModel: No filename given (fileName == NULL)" );
+ return NULL;
+ }
+
+ /* load file data (buffer is allocated by host app) */
+ _pico_load_file( fileName, &buffer, &bufSize );
+ if ( bufSize < 0 ) {
+ _pico_printf( PICO_ERROR, "PicoLoadModel: Failed loading model %s", fileName );
+ return NULL;
+ }
+
+ /* get ptr to list of supported modules */
+ modules = PicoModuleList( NULL );
+
+ /* run it through the various loader functions and try */
+ /* to find a loader that fits the given file data */
+ for ( ; *modules != NULL; modules++ )
+ {
+ /* get module */
+ pm = *modules;
+
+ /* sanity check */
+ if ( pm == NULL ) {
+ break;
+ }
+
+ /* module must be able to load */
+ if ( pm->canload == NULL || pm->load == NULL ) {
+ continue;
+ }
+
+ model = PicoModuleLoadModel( pm, fileName, buffer, bufSize, frameNum );
+ if ( model != NULL ) {
+ /* model was loaded, so break out of loop */
+ break;
+ }
+ }
+
+ /* free memory used by file buffer */
+ if ( buffer ) {
+ _pico_free_file( buffer );
+ }
+
+ /* return */
+ return model;
+}
+
+picoModel_t *PicoModuleLoadModelStream( const picoModule_t* module, void* inputStream, PicoInputStreamReadFunc inputStreamRead, size_t streamLength, int frameNum, const char *fileName ){
+ picoModel_t *model;
+ picoByte_t *buffer;
+ int bufSize;
+
+
+ /* init */
+ model = NULL;
+
+ if ( inputStream == NULL ) {
+ _pico_printf( PICO_ERROR, "PicoLoadModel: invalid input stream (inputStream == NULL)" );
+ return NULL;
+ }
+
+ if ( inputStreamRead == NULL ) {
+ _pico_printf( PICO_ERROR, "PicoLoadModel: invalid input stream (inputStreamRead == NULL)" );
+ return NULL;
+ }
+
+ buffer = _pico_alloc( streamLength + 1 );
+
+ bufSize = (int)inputStreamRead( inputStream, buffer, streamLength );
+ buffer[bufSize] = '\0';
+
+ model = PicoModuleLoadModel( module, fileName, buffer, bufSize, frameNum );
+
+ if ( model != 0 ) {
+ _pico_free( buffer );
+ }
+
+ /* return */
+ return model;
+}
+
+
+/* ----------------------------------------------------------------------------
+ models
+ ---------------------------------------------------------------------------- */
+
+/*
+ PicoNewModel()
+ creates a new pico model
+ */
+
+picoModel_t *PicoNewModel( void ){
+ picoModel_t *model;
+
+ /* allocate */
+ model = _pico_alloc( sizeof( picoModel_t ) );
+ if ( model == NULL ) {
+ return NULL;
+ }
+
+ /* clear */
+ memset( model,0,sizeof( picoModel_t ) );
+
+ /* model set up */
+ _pico_zero_bounds( model->mins,model->maxs );
+
+ /* set initial frame count to 1 -sea */
+ model->numFrames = 1;
+
+ /* return ptr to new model */
+ return model;
+}
+
+
+
+/*
+ PicoFreeModel()
+ frees a model and all associated data
+ */
+
+void PicoFreeModel( picoModel_t *model ){
+ int i;
+
+
+ /* sanity check */
+ if ( model == NULL ) {
+ return;
+ }
+
+ /* free bits */
+ if ( model->name ) {
+ _pico_free( model->name );
+ }
+
+ if ( model->fileName ) {
+ _pico_free( model->fileName );
+ }
+
+ /* free shaders */
+ for ( i = 0; i < model->numShaders; i++ )
+ PicoFreeShader( model->shader[ i ] );
+ free( model->shader );
+
+ /* free surfaces */
+ for ( i = 0; i < model->numSurfaces; i++ )
+ PicoFreeSurface( model->surface[ i ] );
+ free( model->surface );
+
+ /* free the model */
+ _pico_free( model );
+}
+
+
+
+/*
+ PicoAdjustModel()
+ adjusts a models's memory allocations to handle the requested sizes.
+ will always grow, never shrink
+ */
+
+int PicoAdjustModel( picoModel_t *model, int numShaders, int numSurfaces ){
+ /* dummy check */
+ if ( model == NULL ) {
+ return 0;
+ }
+
+ /* bare minimums */
+ /* sea: null surface/shader fix (1s=>0s) */
+ if ( numShaders < 0 ) {
+ numShaders = 0;
+ }
+ if ( numSurfaces < 0 ) {
+ numSurfaces = 0;
+ }
+
+ /* additional shaders? */
+ while ( numShaders > model->maxShaders )
+ {
+ model->maxShaders += PICO_GROW_SHADERS;
+ if ( !_pico_realloc( (void *) &model->shader, model->numShaders * sizeof( *model->shader ), model->maxShaders * sizeof( *model->shader ) ) ) {
+ return 0;
+ }
+ }
+
+ /* set shader count to higher */
+ if ( numShaders > model->numShaders ) {
+ model->numShaders = numShaders;
+ }
+
+ /* additional surfaces? */
+ while ( numSurfaces > model->maxSurfaces )
+ {
+ model->maxSurfaces += PICO_GROW_SURFACES;
+ if ( !_pico_realloc( (void *) &model->surface, model->numSurfaces * sizeof( *model->surface ), model->maxSurfaces * sizeof( *model->surface ) ) ) {
+ return 0;
+ }
+ }
+
+ /* set shader count to higher */
+ if ( numSurfaces > model->numSurfaces ) {
+ model->numSurfaces = numSurfaces;
+ }
+
+ /* return ok */
+ return 1;
+}
+
+
+
+/* ----------------------------------------------------------------------------
+ shaders
+ ---------------------------------------------------------------------------- */
+
+/*
+ PicoNewShader()
+ creates a new pico shader and returns its index. -sea
+ */
+
+picoShader_t *PicoNewShader( picoModel_t *model ){
+ picoShader_t *shader;
+
+
+ /* allocate and clear */
+ shader = _pico_alloc( sizeof( picoShader_t ) );
+ if ( shader == NULL ) {
+ return NULL;
+ }
+ memset( shader, 0, sizeof( picoShader_t ) );
+
+ /* attach it to the model */
+ if ( model != NULL ) {
+ /* adjust model */
+ if ( !PicoAdjustModel( model, model->numShaders + 1, 0 ) ) {
+ _pico_free( shader );
+ return NULL;
+ }
+
+ /* attach */
+ model->shader[ model->numShaders - 1 ] = shader;
+ shader->model = model;
+ }
+
+ /* setup default shader colors */
+ _pico_set_color( shader->ambientColor,0,0,0,0 );
+ _pico_set_color( shader->diffuseColor,255,255,255,1 );
+ _pico_set_color( shader->specularColor,0,0,0,0 );
+
+ /* no need to do this, but i do it anyway */
+ shader->transparency = 0;
+ shader->shininess = 0;
+
+ /* return the newly created shader */
+ return shader;
+}
+
+
+
+/*
+ PicoFreeShader()
+ frees a shader and all associated data -sea
+ */
+
+void PicoFreeShader( picoShader_t *shader ){
+ /* dummy check */
+ if ( shader == NULL ) {
+ return;
+ }
+
+ /* free bits */
+ if ( shader->name ) {
+ _pico_free( shader->name );
+ }
+ if ( shader->mapName ) {
+ _pico_free( shader->mapName );
+ }
+
+ /* free the shader */
+ _pico_free( shader );
+}
+
+
+
+/*
+ PicoFindShader()
+ finds a named shader in a model
+ */
+
+picoShader_t *PicoFindShader( picoModel_t *model, char *name, int caseSensitive ){
+ int i;
+
+
+ /* sanity checks */
+ if ( model == NULL || name == NULL ) { /* sea: null name fix */
+ return NULL;
+ }
+
+ /* walk list */
+ for ( i = 0; i < model->numShaders; i++ )
+ {
+ /* skip null shaders or shaders with null names */
+ if ( model->shader[ i ] == NULL ||
+ model->shader[ i ]->name == NULL ) {
+ continue;
+ }
+
+ /* compare the shader name with name we're looking for */
+ if ( caseSensitive ) {
+ if ( !strcmp( name, model->shader[ i ]->name ) ) {
+ return model->shader[ i ];
+ }
+ }
+ else if ( !_pico_stricmp( name, model->shader[ i ]->name ) ) {
+ return model->shader[ i ];
+ }
+ }
+
+ /* named shader not found */
+ return NULL;
+}
+
+
+
+/* ----------------------------------------------------------------------------
+ surfaces
+ ---------------------------------------------------------------------------- */
+
+/*
+ PicoNewSurface()
+ creates a new pico surface
+ */
+
+picoSurface_t *PicoNewSurface( picoModel_t *model ){
+ picoSurface_t *surface;
+ char surfaceName[64];
+
+ /* allocate and clear */
+ surface = _pico_alloc( sizeof( *surface ) );
+ if ( surface == NULL ) {
+ return NULL;
+ }
+ memset( surface, 0, sizeof( *surface ) );
+
+ /* attach it to the model */
+ if ( model != NULL ) {
+ /* adjust model */
+ if ( !PicoAdjustModel( model, 0, model->numSurfaces + 1 ) ) {
+ _pico_free( surface );
+ return NULL;
+ }
+
+ /* attach */
+ model->surface[ model->numSurfaces - 1 ] = surface;
+ surface->model = model;
+
+ /* set default name */
+ sprintf( surfaceName, "Unnamed_%d", model->numSurfaces );
+ PicoSetSurfaceName( surface, surfaceName );
+ }
+
+ /* return */
+ return surface;
+}
+
+
+
+/*
+ PicoFreeSurface()
+ frees a surface and all associated data
+ */
+void PicoFreeSurface( picoSurface_t *surface ){
+ int i;
+
+
+ /* dummy check */
+ if ( surface == NULL ) {
+ return;
+ }
+
+ /* free bits */
+ _pico_free( surface->xyz );
+ _pico_free( surface->normal );
+ _pico_free( surface->smoothingGroup );
+ _pico_free( surface->index );
+ _pico_free( surface->faceNormal );
+
+ if ( surface->name ) {
+ _pico_free( surface->name );
+ }
+
+ /* free arrays */
+ for ( i = 0; i < surface->numSTArrays; i++ )
+ _pico_free( surface->st[ i ] );
+ free( surface->st );
+ for ( i = 0; i < surface->numColorArrays; i++ )
+ _pico_free( surface->color[ i ] );
+ free( surface->color );
+
+ /* free the surface */
+ _pico_free( surface );
+}
+
+
+
+/*
+ PicoAdjustSurface()
+ adjusts a surface's memory allocations to handle the requested sizes.
+ will always grow, never shrink
+ */
+
+int PicoAdjustSurface( picoSurface_t *surface, int numVertexes, int numSTArrays, int numColorArrays, int numIndexes, int numFaceNormals ){
+ int i;
+
+
+ /* dummy check */
+ if ( surface == NULL ) {
+ return 0;
+ }
+
+ /* bare minimums */
+ if ( numVertexes < 1 ) {
+ numVertexes = 1;
+ }
+ if ( numSTArrays < 1 ) {
+ numSTArrays = 1;
+ }
+ if ( numColorArrays < 1 ) {
+ numColorArrays = 1;
+ }
+ if ( numIndexes < 1 ) {
+ numIndexes = 1;
+ }
+
+ /* additional vertexes? */
+ while ( numVertexes > surface->maxVertexes ) /* fix */
+ {
+ surface->maxVertexes += PICO_GROW_VERTEXES;
+ if ( !_pico_realloc( (void *) &surface->xyz, surface->numVertexes * sizeof( *surface->xyz ), surface->maxVertexes * sizeof( *surface->xyz ) ) ) {
+ return 0;
+ }
+ if ( !_pico_realloc( (void *) &surface->normal, surface->numVertexes * sizeof( *surface->normal ), surface->maxVertexes * sizeof( *surface->normal ) ) ) {
+ return 0;
+ }
+ if ( !_pico_realloc( (void *) &surface->smoothingGroup, surface->numVertexes * sizeof( *surface->smoothingGroup ), surface->maxVertexes * sizeof( *surface->smoothingGroup ) ) ) {
+ return 0;
+ }
+ for ( i = 0; i < surface->numSTArrays; i++ )
+ if ( !_pico_realloc( (void*) &surface->st[ i ], surface->numVertexes * sizeof( *surface->st[ i ] ), surface->maxVertexes * sizeof( *surface->st[ i ] ) ) ) {
+ return 0;
+ }
+ for ( i = 0; i < surface->numColorArrays; i++ )
+ if ( !_pico_realloc( (void*) &surface->color[ i ], surface->numVertexes * sizeof( *surface->color[ i ] ), surface->maxVertexes * sizeof( *surface->color[ i ] ) ) ) {
+ return 0;
+ }
+ }
+
+ /* set vertex count to higher */
+ if ( numVertexes > surface->numVertexes ) {
+ surface->numVertexes = numVertexes;
+ }
+
+ /* additional st arrays? */
+ while ( numSTArrays > surface->maxSTArrays ) /* fix */
+ {
+ surface->maxSTArrays += PICO_GROW_ARRAYS;
+ if ( !_pico_realloc( (void*) &surface->st, surface->numSTArrays * sizeof( *surface->st ), surface->maxSTArrays * sizeof( *surface->st ) ) ) {
+ return 0;
+ }
+ while ( surface->numSTArrays < numSTArrays )
+ {
+ surface->st[ surface->numSTArrays ] = _pico_alloc( surface->maxVertexes * sizeof( *surface->st[ 0 ] ) );
+ memset( surface->st[ surface->numSTArrays ], 0, surface->maxVertexes * sizeof( *surface->st[ 0 ] ) );
+ surface->numSTArrays++;
+ }
+ }
+
+ /* additional color arrays? */
+ while ( numColorArrays > surface->maxColorArrays ) /* fix */
+ {
+ surface->maxColorArrays += PICO_GROW_ARRAYS;
+ if ( !_pico_realloc( (void*) &surface->color, surface->numColorArrays * sizeof( *surface->color ), surface->maxColorArrays * sizeof( *surface->color ) ) ) {
+ return 0;
+ }
+ while ( surface->numColorArrays < numColorArrays )
+ {
+ surface->color[ surface->numColorArrays ] = _pico_alloc( surface->maxVertexes * sizeof( *surface->color[ 0 ] ) );
+ memset( surface->color[ surface->numColorArrays ], 0, surface->maxVertexes * sizeof( *surface->color[ 0 ] ) );
+ surface->numColorArrays++;
+ }
+ }
+
+ /* additional indexes? */
+ while ( numIndexes > surface->maxIndexes ) /* fix */
+ {
+ surface->maxIndexes += PICO_GROW_INDEXES;
+ if ( !_pico_realloc( (void*) &surface->index, surface->numIndexes * sizeof( *surface->index ), surface->maxIndexes * sizeof( *surface->index ) ) ) {
+ return 0;
+ }
+ }
+
+ /* set index count to higher */
+ if ( numIndexes > surface->numIndexes ) {
+ surface->numIndexes = numIndexes;
+ }
+
+ /* additional face normals? */
+ while ( numFaceNormals > surface->maxFaceNormals ) /* fix */
+ {
+ surface->maxFaceNormals += PICO_GROW_FACES;
+ if ( !_pico_realloc( (void *) &surface->faceNormal, surface->numFaceNormals * sizeof( *surface->faceNormal ), surface->maxFaceNormals * sizeof( *surface->faceNormal ) ) ) {
+ return 0;
+ }
+ }
+
+ /* set face normal count to higher */
+ if ( numFaceNormals > surface->numFaceNormals ) {
+ surface->numFaceNormals = numFaceNormals;
+ }
+
+ /* return ok */
+ return 1;
+}
+
+
+/* PicoFindSurface:
+ * Finds first matching named surface in a model.
+ */
+picoSurface_t *PicoFindSurface(
+ picoModel_t *model, char *name, int caseSensitive ){
+ int i;
+
+ /* sanity check */
+ if ( model == NULL || name == NULL ) {
+ return NULL;
+ }
+
+ /* walk list */
+ for ( i = 0; i < model->numSurfaces; i++ )
+ {
+ /* skip null surfaces or surfaces with null names */
+ if ( model->surface[ i ] == NULL ||
+ model->surface[ i ]->name == NULL ) {
+ continue;
+ }
+
+ /* compare the surface name with name we're looking for */
+ if ( caseSensitive ) {
+ if ( !strcmp( name,model->surface[ i ]->name ) ) {
+ return model->surface[ i ];
+ }
+ }
+ else {
+ if ( !_pico_stricmp( name,model->surface[ i ]->name ) ) {
+ return model->surface[ i ];
+ }
+ }
+ }
+ /* named surface not found */
+ return NULL;
+}
+
+
+
+/*----------------------------------------------------------------------------
+ PicoSet*() Setter Functions
+ ----------------------------------------------------------------------------*/
+
+void PicoSetModelName( picoModel_t *model, const char *name ){
+ if ( model == NULL || name == NULL ) {
+ return;
+ }
+ if ( model->name != NULL ) {
+ _pico_free( model->name );
+ }
+
+ model->name = _pico_clone_alloc( name );
+}
+
+
+
+void PicoSetModelFileName( picoModel_t *model, const char *fileName ){
+ if ( model == NULL || fileName == NULL ) {
+ return;
+ }
+ if ( model->fileName != NULL ) {
+ _pico_free( model->fileName );
+ }
+
+ model->fileName = _pico_clone_alloc( fileName );
+}
+
+
+
+void PicoSetModelFrameNum( picoModel_t *model, int frameNum ){
+ if ( model == NULL ) {
+ return;
+ }
+ model->frameNum = frameNum;
+}
+
+
+
+void PicoSetModelNumFrames( picoModel_t *model, int numFrames ){
+ if ( model == NULL ) {
+ return;
+ }
+ model->numFrames = numFrames;
+}
+
+
+
+void PicoSetModelData( picoModel_t *model, void *data ){
+ if ( model == NULL ) {
+ return;
+ }
+ model->data = data;
+}
+
+
+
+void PicoSetShaderName( picoShader_t *shader, char *name ){
+ if ( shader == NULL || name == NULL ) {
+ return;
+ }
+ if ( shader->name != NULL ) {
+ _pico_free( shader->name );
+ }
+
+ shader->name = _pico_clone_alloc( name );
+}
+
+
+
+void PicoSetShaderMapName( picoShader_t *shader, char *mapName ){
+ if ( shader == NULL || mapName == NULL ) {
+ return;
+ }
+ if ( shader->mapName != NULL ) {
+ _pico_free( shader->mapName );
+ }
+
+ shader->mapName = _pico_clone_alloc( mapName );
+}
+
+
+
+void PicoSetShaderAmbientColor( picoShader_t *shader, picoColor_t color ){
+ if ( shader == NULL || color == NULL ) {
+ return;
+ }
+ shader->ambientColor[ 0 ] = color[ 0 ];
+ shader->ambientColor[ 1 ] = color[ 1 ];
+ shader->ambientColor[ 2 ] = color[ 2 ];
+ shader->ambientColor[ 3 ] = color[ 3 ];
+}
+
+
+
+void PicoSetShaderDiffuseColor( picoShader_t *shader, picoColor_t color ){
+ if ( shader == NULL || color == NULL ) {
+ return;
+ }
+ shader->diffuseColor[ 0 ] = color[ 0 ];
+ shader->diffuseColor[ 1 ] = color[ 1 ];
+ shader->diffuseColor[ 2 ] = color[ 2 ];
+ shader->diffuseColor[ 3 ] = color[ 3 ];
+}
+
+
+
+void PicoSetShaderSpecularColor( picoShader_t *shader, picoColor_t color ){
+ if ( shader == NULL || color == NULL ) {
+ return;
+ }
+ shader->specularColor[ 0 ] = color[ 0 ];
+ shader->specularColor[ 1 ] = color[ 1 ];
+ shader->specularColor[ 2 ] = color[ 2 ];
+ shader->specularColor[ 3 ] = color[ 3 ];
+}
+
+
+
+void PicoSetShaderTransparency( picoShader_t *shader, float value ){
+ if ( shader == NULL ) {
+ return;
+ }
+ shader->transparency = value;
+
+ /* cap to 0..1 range */
+ if ( shader->transparency < 0.0 ) {
+ shader->transparency = 0.0;
+ }
+ if ( shader->transparency > 1.0 ) {
+ shader->transparency = 1.0;
+ }
+}
+
+
+
+void PicoSetShaderShininess( picoShader_t *shader, float value ){
+ if ( shader == NULL ) {
+ return;
+ }
+ shader->shininess = value;
+
+ /* cap to 0..127 range */
+ if ( shader->shininess < 0.0 ) {
+ shader->shininess = 0.0;
+ }
+ if ( shader->shininess > 127.0 ) {
+ shader->shininess = 127.0;
+ }
+}
+
+
+
+void PicoSetSurfaceData( picoSurface_t *surface, void *data ){
+ if ( surface == NULL ) {
+ return;
+ }
+ surface->data = data;
+}
+
+
+
+void PicoSetSurfaceType( picoSurface_t *surface, picoSurfaceType_t type ){
+ if ( surface == NULL ) {
+ return;
+ }
+ surface->type = type;
+}
+
+
+
+void PicoSetSurfaceName( picoSurface_t *surface, const char *name ){
+ if ( surface == NULL || name == NULL ) {
+ return;
+ }
+ if ( surface->name != NULL ) {
+ _pico_free( surface->name );
+ }
+
+ surface->name = _pico_clone_alloc( name );
+}
+
+
+
+void PicoSetSurfaceShader( picoSurface_t *surface, picoShader_t *shader ){
+ if ( surface == NULL ) {
+ return;
+ }
+ surface->shader = shader;
+}
+
+
+
+void PicoSetSurfaceXYZ( picoSurface_t *surface, int num, picoVec3_t xyz ){
+ if ( surface == NULL || num < 0 || xyz == NULL ) {
+ return;
+ }
+ if ( !PicoAdjustSurface( surface, num + 1, 0, 0, 0, 0 ) ) {
+ return;
+ }
+ _pico_copy_vec( xyz, surface->xyz[ num ] );
+ if ( surface->model != NULL ) {
+ _pico_expand_bounds( xyz, surface->model->mins, surface->model->maxs );
+ }
+}
+
+
+
+void PicoSetSurfaceNormal( picoSurface_t *surface, int num, picoVec3_t normal ){
+ if ( surface == NULL || num < 0 || normal == NULL ) {
+ return;
+ }
+ if ( !PicoAdjustSurface( surface, num + 1, 0, 0, 0, 0 ) ) {
+ return;
+ }
+ _pico_copy_vec( normal, surface->normal[ num ] );
+}
+
+
+
+void PicoSetSurfaceST( picoSurface_t *surface, int array, int num, picoVec2_t st ){
+ if ( surface == NULL || num < 0 || st == NULL ) {
+ return;
+ }
+ if ( !PicoAdjustSurface( surface, num + 1, array + 1, 0, 0, 0 ) ) {
+ return;
+ }
+ surface->st[ array ][ num ][ 0 ] = st[ 0 ];
+ surface->st[ array ][ num ][ 1 ] = st[ 1 ];
+}
+
+
+
+void PicoSetSurfaceColor( picoSurface_t *surface, int array, int num, picoColor_t color ){
+ if ( surface == NULL || num < 0 || color == NULL ) {
+ return;
+ }
+ if ( !PicoAdjustSurface( surface, num + 1, 0, array + 1, 0, 0 ) ) {
+ return;
+ }
+ surface->color[ array ][ num ][ 0 ] = color[ 0 ];
+ surface->color[ array ][ num ][ 1 ] = color[ 1 ];
+ surface->color[ array ][ num ][ 2 ] = color[ 2 ];
+ surface->color[ array ][ num ][ 3 ] = color[ 3 ];
+}
+
+
+
+void PicoSetSurfaceIndex( picoSurface_t *surface, int num, picoIndex_t index ){
+ if ( surface == NULL || num < 0 ) {
+ return;
+ }
+ if ( !PicoAdjustSurface( surface, 0, 0, 0, num + 1, 0 ) ) {
+ return;
+ }
+ surface->index[ num ] = index;
+}
+
+
+
+void PicoSetSurfaceIndexes( picoSurface_t *surface, int num, picoIndex_t *index, int count ){
+ if ( num < 0 || index == NULL || count < 1 ) {
+ return;
+ }
+ if ( !PicoAdjustSurface( surface, 0, 0, 0, num + count, 0 ) ) {
+ return;
+ }
+ memcpy( &surface->index[ num ], index, count * sizeof( surface->index[ num ] ) );
+}
+
+
+
+void PicoSetFaceNormal( picoSurface_t *surface, int num, picoVec3_t normal ){
+ if ( surface == NULL || num < 0 || normal == NULL ) {
+ return;
+ }
+ if ( !PicoAdjustSurface( surface, 0, 0, 0, 0, num + 1 ) ) {
+ return;
+ }
+ _pico_copy_vec( normal, surface->faceNormal[ num ] );
+}
+
+
+void PicoSetSurfaceSmoothingGroup( picoSurface_t *surface, int num, picoIndex_t smoothingGroup ){
+ if ( num < 0 ) {
+ return;
+ }
+ if ( !PicoAdjustSurface( surface, num + 1, 0, 0, 0, 0 ) ) {
+ return;
+ }
+ surface->smoothingGroup[ num ] = smoothingGroup;
+}
+
+
+void PicoSetSurfaceSpecial( picoSurface_t *surface, int num, int special ){
+ if ( surface == NULL || num < 0 || num >= PICO_MAX_SPECIAL ) {
+ return;
+ }
+ surface->special[ num ] = special;
+}
+
+
+
+/*----------------------------------------------------------------------------
+ PicoGet*() Getter Functions
+ ----------------------------------------------------------------------------*/
+
+char *PicoGetModelName( picoModel_t *model ){
+ if ( model == NULL ) {
+ return NULL;
+ }
+ if ( model->name == NULL ) {
+ return (char*) "";
+ }
+ return model->name;
+}
+
+
+
+char *PicoGetModelFileName( picoModel_t *model ){
+ if ( model == NULL ) {
+ return NULL;
+ }
+ if ( model->fileName == NULL ) {
+ return (char*) "";
+ }
+ return model->fileName;
+}
+
+
+
+int PicoGetModelFrameNum( picoModel_t *model ){
+ if ( model == NULL ) {
+ return 0;
+ }
+ return model->frameNum;
+}
+
+
+
+int PicoGetModelNumFrames( picoModel_t *model ){
+ if ( model == NULL ) {
+ return 0;
+ }
+ return model->numFrames;
+}
+
+
+
+void *PicoGetModelData( picoModel_t *model ){
+ if ( model == NULL ) {
+ return NULL;
+ }
+ return model->data;
+}
+
+
+
+int PicoGetModelNumShaders( picoModel_t *model ){
+ if ( model == NULL ) {
+ return 0;
+ }
+ return model->numShaders;
+}
+
+
+
+picoShader_t *PicoGetModelShader( picoModel_t *model, int num ){
+ /* a few sanity checks */
+ if ( model == NULL ) {
+ return NULL;
+ }
+ if ( model->shader == NULL ) {
+ return NULL;
+ }
+ if ( num < 0 || num >= model->numShaders ) {
+ return NULL;
+ }
+
+ /* return the shader */
+ return model->shader[ num ];
+}
+
+
+
+int PicoGetModelNumSurfaces( picoModel_t *model ){
+ if ( model == NULL ) {
+ return 0;
+ }
+ return model->numSurfaces;
+}
+
+
+
+picoSurface_t *PicoGetModelSurface( picoModel_t *model, int num ){
+ /* a few sanity checks */
+ if ( model == NULL ) {
+ return NULL;
+ }
+ if ( model->surface == NULL ) {
+ return NULL;
+ }
+ if ( num < 0 || num >= model->numSurfaces ) {
+ return NULL;
+ }
+
+ /* return the surface */
+ return model->surface[ num ];
+}
+
+
+
+int PicoGetModelTotalVertexes( picoModel_t *model ){
+ int i, count;
+
+
+ if ( model == NULL ) {
+ return 0;
+ }
+ if ( model->surface == NULL ) {
+ return 0;
+ }
+
+ count = 0;
+ for ( i = 0; i < model->numSurfaces; i++ )
+ count += PicoGetSurfaceNumVertexes( model->surface[ i ] );
+
+ return count;
+}
+
+
+
+int PicoGetModelTotalIndexes( picoModel_t *model ){
+ int i, count;
+
+
+ if ( model == NULL ) {
+ return 0;
+ }
+ if ( model->surface == NULL ) {
+ return 0;
+ }
+
+ count = 0;
+ for ( i = 0; i < model->numSurfaces; i++ )
+ count += PicoGetSurfaceNumIndexes( model->surface[ i ] );
+
+ return count;
+}
+
+
+
+char *PicoGetShaderName( picoShader_t *shader ){
+ if ( shader == NULL ) {
+ return NULL;
+ }
+ if ( shader->name == NULL ) {
+ return (char*) "";
+ }
+ return shader->name;
+}
+
+
+
+char *PicoGetShaderMapName( picoShader_t *shader ){
+ if ( shader == NULL ) {
+ return NULL;
+ }
+ if ( shader->mapName == NULL ) {
+ return (char*) "";
+ }
+ return shader->mapName;
+}
+
+
+
+picoByte_t *PicoGetShaderAmbientColor( picoShader_t *shader ){
+ if ( shader == NULL ) {
+ return NULL;
+ }
+ return shader->ambientColor;
+}
+
+
+
+picoByte_t *PicoGetShaderDiffuseColor( picoShader_t *shader ){
+ if ( shader == NULL ) {
+ return NULL;
+ }
+ return shader->diffuseColor;
+}
+
+
+
+picoByte_t *PicoGetShaderSpecularColor( picoShader_t *shader ){
+ if ( shader == NULL ) {
+ return NULL;
+ }
+ return shader->specularColor;
+}
+
+
+
+float PicoGetShaderTransparency( picoShader_t *shader ){
+ if ( shader == NULL ) {
+ return 0.0f;
+ }
+ return shader->transparency;
+}
+
+
+
+float PicoGetShaderShininess( picoShader_t *shader ){
+ if ( shader == NULL ) {
+ return 0.0f;
+ }
+ return shader->shininess;
+}
+
+
+
+void *PicoGetSurfaceData( picoSurface_t *surface ){
+ if ( surface == NULL ) {
+ return NULL;
+ }
+ return surface->data;
+}
+
+
+
+picoSurfaceType_t PicoGetSurfaceType( picoSurface_t *surface ){
+ if ( surface == NULL ) {
+ return PICO_BAD;
+ }
+ return surface->type;
+}
+
+
+
+char *PicoGetSurfaceName( picoSurface_t *surface ){
+ if ( surface == NULL ) {
+ return NULL;
+ }
+ if ( surface->name == NULL ) {
+ return (char*) "";
+ }
+ return surface->name;
+}
+
+
+
+picoShader_t *PicoGetSurfaceShader( picoSurface_t *surface ){
+ if ( surface == NULL ) {
+ return NULL;
+ }
+ return surface->shader;
+}
+
+
+
+int PicoGetSurfaceNumVertexes( picoSurface_t *surface ){
+ if ( surface == NULL ) {
+ return 0;
+ }
+ return surface->numVertexes;
+}
+
+
+
+picoVec_t *PicoGetSurfaceXYZ( picoSurface_t *surface, int num ){
+ if ( surface == NULL || num < 0 || num > surface->numVertexes ) {
+ return NULL;
+ }
+ return surface->xyz[ num ];
+}
+
+
+
+picoVec_t *PicoGetSurfaceNormal( picoSurface_t *surface, int num ){
+ if ( surface == NULL || num < 0 || num > surface->numVertexes ) {
+ return NULL;
+ }
+ return surface->normal[ num ];
+}
+
+
+
+picoVec_t *PicoGetSurfaceST( picoSurface_t *surface, int array, int num ){
+ if ( surface == NULL || array < 0 || array > surface->numSTArrays || num < 0 || num > surface->numVertexes ) {
+ return NULL;
+ }
+ return surface->st[ array ][ num ];
+}
+
+
+
+picoByte_t *PicoGetSurfaceColor( picoSurface_t *surface, int array, int num ){
+ if ( surface == NULL || array < 0 || array > surface->numColorArrays || num < 0 || num > surface->numVertexes ) {
+ return NULL;
+ }
+ return surface->color[ array ][ num ];
+}
+
+
+
+int PicoGetSurfaceNumIndexes( picoSurface_t *surface ){
+ if ( surface == NULL ) {
+ return 0;
+ }
+ return surface->numIndexes;
+}
+
+
+
+picoIndex_t PicoGetSurfaceIndex( picoSurface_t *surface, int num ){
+ if ( surface == NULL || num < 0 || num > surface->numIndexes ) {
+ return 0;
+ }
+ return surface->index[ num ];
+}
+
+
+
+picoIndex_t *PicoGetSurfaceIndexes( picoSurface_t *surface, int num ){
+ if ( surface == NULL || num < 0 || num > surface->numIndexes ) {
+ return NULL;
+ }
+ return &surface->index[ num ];
+}
+
+
+picoVec_t *PicoGetFaceNormal( picoSurface_t *surface, int num ){
+ if ( surface == NULL || num < 0 || num > surface->numFaceNormals ) {
+ return NULL;
+ }
+ return surface->faceNormal[ num ];
+}
+
+picoIndex_t PicoGetSurfaceSmoothingGroup( picoSurface_t *surface, int num ){
+ if ( surface == NULL || num < 0 || num > surface->numVertexes ) {
+ return -1;
+ }
+ return surface->smoothingGroup[ num ];
+}
+
+
+int PicoGetSurfaceSpecial( picoSurface_t *surface, int num ){
+ if ( surface == NULL || num < 0 || num >= PICO_MAX_SPECIAL ) {
+ return 0;
+ }
+ return surface->special[ num ];
+}
+
+
+
+/* ----------------------------------------------------------------------------
+ hashtable related functions
+ ---------------------------------------------------------------------------- */
+
+/* hashtable code for faster vertex lookups */
+//#define HASHTABLE_SIZE 32768 // 2048 /* power of 2, use & */
+#define HASHTABLE_SIZE 7919 // 32749 // 2039 /* prime, use % */
+
+int PicoGetHashTableSize( void ){
+ return HASHTABLE_SIZE;
+}
+
+#define HASH_USE_EPSILON
+
+#ifdef HASH_USE_EPSILON
+#define HASH_XYZ_EPSILON 0.01f
+#define HASH_XYZ_EPSILONSPACE_MULTIPLIER 1.f / HASH_XYZ_EPSILON
+#define HASH_ST_EPSILON 0.0001f
+#define HASH_NORMAL_EPSILON 0.02f
+#endif
+
+unsigned int PicoVertexCoordGenerateHash( picoVec3_t xyz ){
+ unsigned int hash = 0;
+
+#ifndef HASH_USE_EPSILON
+ hash += ~( *( (unsigned int*) &xyz[ 0 ] ) << 15 );
+ hash ^= ( *( (unsigned int*) &xyz[ 0 ] ) >> 10 );
+ hash += ( *( (unsigned int*) &xyz[ 1 ] ) << 3 );
+ hash ^= ( *( (unsigned int*) &xyz[ 1 ] ) >> 6 );
+ hash += ~( *( (unsigned int*) &xyz[ 2 ] ) << 11 );
+ hash ^= ( *( (unsigned int*) &xyz[ 2 ] ) >> 16 );
+#else
+ picoVec3_t xyz_epsilonspace;
+
+ _pico_scale_vec( xyz, HASH_XYZ_EPSILONSPACE_MULTIPLIER, xyz_epsilonspace );
+ xyz_epsilonspace[ 0 ] = (float)floor( xyz_epsilonspace[ 0 ] );
+ xyz_epsilonspace[ 1 ] = (float)floor( xyz_epsilonspace[ 1 ] );
+ xyz_epsilonspace[ 2 ] = (float)floor( xyz_epsilonspace[ 2 ] );
+
+ hash += ~( *( (unsigned int*) &xyz_epsilonspace[ 0 ] ) << 15 );
+ hash ^= ( *( (unsigned int*) &xyz_epsilonspace[ 0 ] ) >> 10 );
+ hash += ( *( (unsigned int*) &xyz_epsilonspace[ 1 ] ) << 3 );
+ hash ^= ( *( (unsigned int*) &xyz_epsilonspace[ 1 ] ) >> 6 );
+ hash += ~( *( (unsigned int*) &xyz_epsilonspace[ 2 ] ) << 11 );
+ hash ^= ( *( (unsigned int*) &xyz_epsilonspace[ 2 ] ) >> 16 );
+#endif
+
+ //hash = hash & (HASHTABLE_SIZE-1);
+ hash = hash % ( HASHTABLE_SIZE );
+ return hash;
+}
+
+picoVertexCombinationHash_t **PicoNewVertexCombinationHashTable( void ){
+ picoVertexCombinationHash_t **hashTable = _pico_alloc( HASHTABLE_SIZE * sizeof( picoVertexCombinationHash_t* ) );
+
+ memset( hashTable, 0, HASHTABLE_SIZE * sizeof( picoVertexCombinationHash_t* ) );
+
+ return hashTable;
+}
+
+void PicoFreeVertexCombinationHashTable( picoVertexCombinationHash_t **hashTable ){
+ int i;
+ picoVertexCombinationHash_t *vertexCombinationHash;
+ picoVertexCombinationHash_t *nextVertexCombinationHash;
+
+ /* dummy check */
+ if ( hashTable == NULL ) {
+ return;
+ }
+
+ for ( i = 0; i < HASHTABLE_SIZE; i++ )
+ {
+ if ( hashTable[ i ] ) {
+ nextVertexCombinationHash = NULL;
+
+ for ( vertexCombinationHash = hashTable[ i ]; vertexCombinationHash; vertexCombinationHash = nextVertexCombinationHash )
+ {
+ nextVertexCombinationHash = vertexCombinationHash->next;
+ if ( vertexCombinationHash->data != NULL ) {
+ _pico_free( vertexCombinationHash->data );
+ }
+ _pico_free( vertexCombinationHash );
+ }
+ }
+ }
+
+ _pico_free( hashTable );
+}
+
+picoVertexCombinationHash_t *PicoFindVertexCombinationInHashTable( picoVertexCombinationHash_t **hashTable, picoVec3_t xyz, picoVec3_t normal, picoVec3_t st, picoColor_t color ){
+ unsigned int hash;
+ picoVertexCombinationHash_t *vertexCombinationHash;
+
+ /* dumy check */
+ if ( hashTable == NULL || xyz == NULL || normal == NULL || st == NULL || color == NULL ) {
+ return NULL;
+ }
+
+ hash = PicoVertexCoordGenerateHash( xyz );
+
+ for ( vertexCombinationHash = hashTable[ hash ]; vertexCombinationHash; vertexCombinationHash = vertexCombinationHash->next )
+ {
+#ifndef HASH_USE_EPSILON
+ /* check xyz */
+ if ( ( vertexCombinationHash->vcd.xyz[ 0 ] != xyz[ 0 ] || vertexCombinationHash->vcd.xyz[ 1 ] != xyz[ 1 ] || vertexCombinationHash->vcd.xyz[ 2 ] != xyz[ 2 ] ) ) {
+ continue;
+ }
+
+ /* check normal */
+ if ( ( vertexCombinationHash->vcd.normal[ 0 ] != normal[ 0 ] || vertexCombinationHash->vcd.normal[ 1 ] != normal[ 1 ] || vertexCombinationHash->vcd.normal[ 2 ] != normal[ 2 ] ) ) {
+ continue;
+ }
+
+ /* check st */
+ if ( vertexCombinationHash->vcd.st[ 0 ] != st[ 0 ] || vertexCombinationHash->vcd.st[ 1 ] != st[ 1 ] ) {
+ continue;
+ }
+#else
+ /* check xyz */
+ if ( ( fabs( xyz[ 0 ] - vertexCombinationHash->vcd.xyz[ 0 ] ) ) > HASH_XYZ_EPSILON ||
+ ( fabs( xyz[ 1 ] - vertexCombinationHash->vcd.xyz[ 1 ] ) ) > HASH_XYZ_EPSILON ||
+ ( fabs( xyz[ 2 ] - vertexCombinationHash->vcd.xyz[ 2 ] ) ) > HASH_XYZ_EPSILON ) {
+ continue;
+ }
+
+ /* check normal */
+ if ( ( fabs( normal[ 0 ] - vertexCombinationHash->vcd.normal[ 0 ] ) ) > HASH_NORMAL_EPSILON ||
+ ( fabs( normal[ 1 ] - vertexCombinationHash->vcd.normal[ 1 ] ) ) > HASH_NORMAL_EPSILON ||
+ ( fabs( normal[ 2 ] - vertexCombinationHash->vcd.normal[ 2 ] ) ) > HASH_NORMAL_EPSILON ) {
+ continue;
+ }
+
+ /* check st */
+ if ( ( fabs( st[ 0 ] - vertexCombinationHash->vcd.st[ 0 ] ) ) > HASH_ST_EPSILON ||
+ ( fabs( st[ 1 ] - vertexCombinationHash->vcd.st[ 1 ] ) ) > HASH_ST_EPSILON ) {
+ continue;
+ }
+#endif
+
+ /* check color */
+ if ( *( (int*) vertexCombinationHash->vcd.color ) != *( (int*) color ) ) {
+ continue;
+ }
+
+ /* gotcha */
+ return vertexCombinationHash;
+ }
+
+ return NULL;
+}
+
+picoVertexCombinationHash_t *PicoAddVertexCombinationToHashTable( picoVertexCombinationHash_t **hashTable, picoVec3_t xyz, picoVec3_t normal, picoVec3_t st, picoColor_t color, picoIndex_t index ){
+ unsigned int hash;
+ picoVertexCombinationHash_t *vertexCombinationHash;
+
+ /* dumy check */
+ if ( hashTable == NULL || xyz == NULL || normal == NULL || st == NULL || color == NULL ) {
+ return NULL;
+ }
+
+ vertexCombinationHash = _pico_alloc( sizeof( picoVertexCombinationHash_t ) );
+
+ if ( !vertexCombinationHash ) {
+ return NULL;
+ }
+
+ hash = PicoVertexCoordGenerateHash( xyz );
+
+ _pico_copy_vec( xyz, vertexCombinationHash->vcd.xyz );
+ _pico_copy_vec( normal, vertexCombinationHash->vcd.normal );
+ _pico_copy_vec2( st, vertexCombinationHash->vcd.st );
+ _pico_copy_color( color, vertexCombinationHash->vcd.color );
+ vertexCombinationHash->index = index;
+ vertexCombinationHash->data = NULL;
+ vertexCombinationHash->next = hashTable[ hash ];
+ hashTable[ hash ] = vertexCombinationHash;
+
+ return vertexCombinationHash;
+}
+
+/* ----------------------------------------------------------------------------
+ specialized routines
+ ---------------------------------------------------------------------------- */
+
+/*
+ PicoFindSurfaceVertex()
+ finds a vertex matching the set parameters
+ fixme: needs non-naive algorithm
+ */
+
+int PicoFindSurfaceVertexNum( picoSurface_t *surface, picoVec3_t xyz, picoVec3_t normal, int numSTs, picoVec2_t *st, int numColors, picoColor_t *color, picoIndex_t smoothingGroup ){
+ int i, j;
+
+
+ /* dummy check */
+ if ( surface == NULL || surface->numVertexes <= 0 ) {
+ return -1;
+ }
+
+ /* walk vertex list */
+ for ( i = 0; i < surface->numVertexes; i++ )
+ {
+ /* check xyz */
+ if ( xyz != NULL && ( surface->xyz[ i ][ 0 ] != xyz[ 0 ] || surface->xyz[ i ][ 1 ] != xyz[ 1 ] || surface->xyz[ i ][ 2 ] != xyz[ 2 ] ) ) {
+ continue;
+ }
+
+ /* check normal */
+ if ( normal != NULL && ( surface->normal[ i ][ 0 ] != normal[ 0 ] || surface->normal[ i ][ 1 ] != normal[ 1 ] || surface->normal[ i ][ 2 ] != normal[ 2 ] ) ) {
+ continue;
+ }
+
+ /* check normal */
+ if ( surface->smoothingGroup[ i ] != smoothingGroup ) {
+ continue;
+ }
+
+ /* check st */
+ if ( numSTs > 0 && st != NULL ) {
+ for ( j = 0; j < numSTs; j++ )
+ {
+ if ( surface->st[ j ][ i ][ 0 ] != st[ j ][ 0 ] || surface->st[ j ][ i ][ 1 ] != st[ j ][ 1 ] ) {
+ break;
+ }
+ }
+ if ( j != numSTs ) {
+ continue;
+ }
+ }
+
+ /* check color */
+ if ( numColors > 0 && color != NULL ) {
+ for ( j = 0; j < numSTs; j++ )
+ {
+ if ( *( (int*) surface->color[ j ] ) != *( (int*) color[ j ] ) ) {
+ break;
+ }
+ }
+ if ( j != numColors ) {
+ continue;
+ }
+ }
+
+ /* vertex matches */
+ return i;
+ }
+
+ /* nada */
+ return -1;
+}
+
+
+
+
+typedef struct _IndexArray IndexArray;
+struct _IndexArray
+{
+ picoIndex_t* data;
+ picoIndex_t* last;
+};
+
+void indexarray_push_back( IndexArray* self, picoIndex_t value ){
+ *self->last++ = value;
+}
+
+size_t indexarray_size( IndexArray* self ){
+ return self->last - self->data;
+}
+
+void indexarray_reserve( IndexArray* self, size_t size ){
+ self->data = self->last = _pico_calloc( size, sizeof( picoIndex_t ) );
+}
+
+void indexarray_clear( IndexArray* self ){
+ _pico_free( self->data );
+}
+
+typedef struct _BinaryTreeNode BinaryTreeNode;
+struct _BinaryTreeNode
+{
+ picoIndex_t left;
+ picoIndex_t right;
+};
+
+typedef struct _BinaryTree BinaryTree;
+struct _BinaryTree
+{
+ BinaryTreeNode* data;
+ BinaryTreeNode* last;
+};
+
+void binarytree_extend( BinaryTree* self ){
+ self->last->left = 0;
+ self->last->right = 0;
+ ++self->last;
+}
+
+size_t binarytree_size( BinaryTree* self ){
+ return self->last - self->data;
+}
+
+void binarytree_reserve( BinaryTree* self, size_t size ){
+ self->data = self->last = _pico_calloc( size, sizeof( BinaryTreeNode ) );
+}
+
+void binarytree_clear( BinaryTree* self ){
+ _pico_free( self->data );
+}
+
+typedef int ( *LessFunc )( void*, picoIndex_t, picoIndex_t );
+
+typedef struct _UniqueIndices UniqueIndices;
+struct _UniqueIndices
+{
+ BinaryTree tree;
+ IndexArray indices;
+ LessFunc lessFunc;
+ void* lessData;
+};
+
+size_t UniqueIndices_size( UniqueIndices* self ){
+ return binarytree_size( &self->tree );
+}
+
+void UniqueIndices_reserve( UniqueIndices* self, size_t size ){
+ binarytree_reserve( &self->tree, size );
+ indexarray_reserve( &self->indices, size );
+}
+
+void UniqueIndices_init( UniqueIndices* self, LessFunc lessFunc, void* lessData ){
+ self->lessFunc = lessFunc;
+ self->lessData = lessData;
+}
+
+void UniqueIndices_destroy( UniqueIndices* self ){
+ binarytree_clear( &self->tree );
+ indexarray_clear( &self->indices );
+}
+
+
+picoIndex_t UniqueIndices_find_or_insert( UniqueIndices* self, picoIndex_t value ){
+ picoIndex_t index = 0;
+
+ for (;; )
+ {
+ if ( self->lessFunc( self->lessData, value, self->indices.data[index] ) ) {
+ BinaryTreeNode* node = self->tree.data + index;
+ if ( node->left != 0 ) {
+ index = node->left;
+ continue;
+ }
+ else
+ {
+ node->left = (picoIndex_t)binarytree_size( &self->tree );
+ binarytree_extend( &self->tree );
+ indexarray_push_back( &self->indices, value );
+ return node->left;
+ }
+ }
+ if ( self->lessFunc( self->lessData, self->indices.data[index], value ) ) {
+ BinaryTreeNode* node = self->tree.data + index;
+ if ( node->right != 0 ) {
+ index = node->right;
+ continue;
+ }
+ else
+ {
+ node->right = (picoIndex_t)binarytree_size( &self->tree );
+ binarytree_extend( &self->tree );
+ indexarray_push_back( &self->indices, value );
+ return node->right;
+ }
+ }
+
+ return index;
+ }
+}
+
+picoIndex_t UniqueIndices_insert( UniqueIndices* self, picoIndex_t value ){
+ if ( self->tree.data == self->tree.last ) {
+ binarytree_extend( &self->tree );
+ indexarray_push_back( &self->indices, value );
+ return 0;
+ }
+ else
+ {
+ return UniqueIndices_find_or_insert( self, value );
+ }
+}
+
+typedef struct picoSmoothVertices_s picoSmoothVertices_t;
+struct picoSmoothVertices_s
+{
+ picoVec3_t* xyz;
+ picoIndex_t* smoothingGroups;
+};
+
+int lessSmoothVertex( void* data, picoIndex_t first, picoIndex_t second ){
+ picoSmoothVertices_t* smoothVertices = data;
+
+ if ( smoothVertices->xyz[first][0] != smoothVertices->xyz[second][0] ) {
+ return smoothVertices->xyz[first][0] < smoothVertices->xyz[second][0];
+ }
+ if ( smoothVertices->xyz[first][1] != smoothVertices->xyz[second][1] ) {
+ return smoothVertices->xyz[first][1] < smoothVertices->xyz[second][1];
+ }
+ if ( smoothVertices->xyz[first][2] != smoothVertices->xyz[second][2] ) {
+ return smoothVertices->xyz[first][2] < smoothVertices->xyz[second][2];
+ }
+ if ( smoothVertices->smoothingGroups[first] != smoothVertices->smoothingGroups[second] ) {
+ return smoothVertices->smoothingGroups[first] < smoothVertices->smoothingGroups[second];
+ }
+ return 0;
+}
+
+void _pico_vertices_combine_shared_normals( picoVec3_t* xyz, picoIndex_t* smoothingGroups, picoVec3_t* normals, picoIndex_t numVertices ){
+ UniqueIndices vertices;
+ IndexArray indices;
+ picoSmoothVertices_t smoothVertices = { xyz, smoothingGroups };
+ UniqueIndices_init( &vertices, lessSmoothVertex, &smoothVertices );
+ UniqueIndices_reserve( &vertices, numVertices );
+ indexarray_reserve( &indices, numVertices );
+
+
+ {
+ picoIndex_t i = 0;
+ for (; i < numVertices; ++i )
+ {
+ size_t size = UniqueIndices_size( &vertices );
+ picoIndex_t index = UniqueIndices_insert( &vertices, i );
+ if ( (size_t)index != size ) {
+ float* normal = normals[vertices.indices.data[index]];
+ _pico_add_vec( normal, normals[i], normal );
+ }
+ indexarray_push_back( &indices, index );
+ }
+ }
+
+ {
+ picoIndex_t maxIndex = 0;
+ picoIndex_t* i = indices.data;
+ for (; i != indices.last; ++i )
+ {
+ if ( *i <= maxIndex ) {
+ _pico_copy_vec( normals[vertices.indices.data[*i]], normals[i - indices.data] );
+ }
+ else
+ {
+ maxIndex = *i;
+ }
+ }
+ }
+
+ UniqueIndices_destroy( &vertices );
+ indexarray_clear( &indices );
+}
+
+typedef picoVec3_t* picoNormalIter_t;
+typedef picoIndex_t* picoIndexIter_t;
+
+#define THE_CROSSPRODUCTS_OF_ANY_PAIR_OF_EDGES_OF_A_GIVEN_TRIANGLE_ARE_EQUAL 1
+
+void _pico_triangles_generate_weighted_normals( picoIndexIter_t first, picoIndexIter_t end, picoVec3_t* xyz, picoVec3_t* normals ){
+ for (; first != end; first += 3 )
+ {
+#if ( THE_CROSSPRODUCTS_OF_ANY_PAIR_OF_EDGES_OF_A_GIVEN_TRIANGLE_ARE_EQUAL )
+ picoVec3_t weightedNormal;
+ {
+ float* a = xyz[*( first + 0 )];
+ float* b = xyz[*( first + 1 )];
+ float* c = xyz[*( first + 2 )];
+ picoVec3_t ba, ca;
+ _pico_subtract_vec( b, a, ba );
+ _pico_subtract_vec( c, a, ca );
+ _pico_cross_vec( ca, ba, weightedNormal );
+ }
+#endif
+ {
+ int j = 0;
+ for (; j < 3; ++j )
+ {
+ float* normal = normals[*( first + j )];
+#if ( !THE_CROSSPRODUCTS_OF_ANY_PAIR_OF_EDGES_OF_A_GIVEN_TRIANGLE_ARE_EQUAL )
+ picoVec3_t weightedNormal;
+ {
+ float* a = xyz[*( first + ( ( j + 0 ) % 3 ) )];
+ float* b = xyz[*( first + ( ( j + 1 ) % 3 ) )];
+ float* c = xyz[*( first + ( ( j + 2 ) % 3 ) )];
+ picoVec3_t ba, ca;
+ _pico_subtract_vec( b, a, ba );
+ _pico_subtract_vec( c, a, ca );
+ _pico_cross_vec( ca, ba, weightedNormal );
+ }
+#endif
+ _pico_add_vec( weightedNormal, normal, normal );
+ }
+ }
+ }
+}
+
+void _pico_normals_zero( picoNormalIter_t first, picoNormalIter_t last ){
+ for (; first != last; ++first )
+ {
+ _pico_zero_vec( *first );
+ }
+}
+
+void _pico_normals_normalize( picoNormalIter_t first, picoNormalIter_t last ){
+ for (; first != last; ++first )
+ {
+ _pico_normalize_vec( *first );
+ }
+}
+
+double _pico_length_vec( picoVec3_t vec ){
+ return sqrt( vec[ 0 ] * vec[ 0 ] + vec[ 1 ] * vec[ 1 ] + vec[ 2 ] * vec[ 2 ] );
+}
+
+#define NORMAL_UNIT_LENGTH_EPSILON 0.01
+#define FLOAT_EQUAL_EPSILON( f, other, epsilon ) ( fabs( f - other ) < epsilon )
+
+int _pico_normal_is_unit_length( picoVec3_t normal ){
+ return FLOAT_EQUAL_EPSILON( _pico_length_vec( normal ), 1.0, NORMAL_UNIT_LENGTH_EPSILON );
+}
+
+int _pico_normal_within_tolerance( picoVec3_t normal, picoVec3_t other ){
+ return _pico_dot_vec( normal, other ) > 0.0f;
+}
+
+
+void _pico_normals_assign_generated_normals( picoNormalIter_t first, picoNormalIter_t last, picoNormalIter_t generated ){
+ for (; first != last; ++first, ++generated )
+ {
+ if ( !_pico_normal_is_unit_length( *first ) || !_pico_normal_within_tolerance( *first, *generated ) ) {
+ _pico_copy_vec( *generated, *first );
+ }
+ }
+}
+
+void PicoFixSurfaceNormals( picoSurface_t* surface ){
+ picoVec3_t* normals = (picoVec3_t*)_pico_calloc( surface->numVertexes, sizeof( picoVec3_t ) );
+
+ _pico_normals_zero( normals, normals + surface->numVertexes );
+
+ _pico_triangles_generate_weighted_normals( surface->index, surface->index + surface->numIndexes, surface->xyz, normals );
+ _pico_vertices_combine_shared_normals( surface->xyz, surface->smoothingGroup, normals, surface->numVertexes );
+
+ _pico_normals_normalize( normals, normals + surface->numVertexes );
+
+ _pico_normals_assign_generated_normals( surface->normal, surface->normal + surface->numVertexes, normals );
+
+ _pico_free( normals );
+}
+
+
+/*
+ PicoRemapModel() - sea
+ remaps model material/etc. information using the remappings
+ contained in the given 'remapFile' (full path to the ascii file to open)
+ returns 1 on success or 0 on error
+ */
+
+#define _prm_error_return \
+ { \
+ _pico_free_parser( p ); \
+ _pico_free_file( remapBuffer ); \
+ return 0; \
+ }
+
+int PicoRemapModel( picoModel_t *model, char *remapFile ){
+ picoParser_t *p;
+ picoByte_t *remapBuffer;
+ int remapBufSize;
+
+
+ /* sanity checks */
+ if ( model == NULL || remapFile == NULL ) {
+ return 0;
+ }
+
+ /* load remap file contents */
+ _pico_load_file( remapFile,&remapBuffer,&remapBufSize );
+
+ /* check result */
+ if ( remapBufSize == 0 ) {
+ return 1; /* file is empty: no error */
+ }
+ if ( remapBufSize < 0 ) {
+ return 0; /* load failed: error */
+
+ }
+ /* create a new pico parser */
+ p = _pico_new_parser( remapBuffer, remapBufSize );
+ if ( p == NULL ) {
+ /* ram is really cheap nowadays... */
+ _prm_error_return;
+ }
+
+ /* doo teh parse */
+ while ( 1 )
+ {
+ /* get next token in remap file */
+ if ( !_pico_parse( p,1 ) ) {
+ break;
+ }
+
+ /* skip over c++ style comment lines */
+ if ( !_pico_stricmp( p->token,"//" ) ) {
+ _pico_parse_skip_rest( p );
+ continue;
+ }
+
+ /* block for quick material shader name remapping */
+ /* materials { "m" (=>|->|=) "s" } */
+ if ( !_pico_stricmp( p->token, "materials" ) ) {
+ int level = 1;
+
+ /* check bracket */
+ if ( !_pico_parse_check( p,1,"{" ) ) {
+ _prm_error_return;
+ }
+
+ /* process assignments */
+ while ( 1 )
+ {
+ picoShader_t *shader;
+ char *materialName;
+
+
+ /* get material name */
+ if ( _pico_parse( p,1 ) == NULL ) {
+ break;
+ }
+ if ( !strlen( p->token ) ) {
+ continue;
+ }
+ materialName = _pico_clone_alloc( p->token );
+ if ( materialName == NULL ) {
+ _prm_error_return;
+ }
+
+ /* handle levels */
+ if ( p->token[0] == '{' ) {
+ level++;
+ }
+ if ( p->token[0] == '}' ) {
+ level--;
+ }
+ if ( !level ) {
+ break;
+ }
+
+ /* get next token (assignment token or shader name) */
+ if ( !_pico_parse( p,0 ) ) {
+ _pico_free( materialName );
+ _prm_error_return;
+ }
+ /* skip assignment token (if present) */
+ if ( !strcmp( p->token,"=>" ) ||
+ !strcmp( p->token,"->" ) ||
+ !strcmp( p->token,"=" ) ) {
+ /* simply grab the next token */
+ if ( !_pico_parse( p,0 ) ) {
+ _pico_free( materialName );
+ _prm_error_return;
+ }
+ }
+ /* try to find material by name */
+ shader = PicoFindShader( model,materialName,0 );
+
+ /* we've found a material matching the name */
+ if ( shader != NULL ) {
+ PicoSetShaderName( shader,p->token );
+ }
+ /* free memory used by material name */
+ _pico_free( materialName );
+
+ /* skip rest */
+ _pico_parse_skip_rest( p );
+ }
+ }
+ /* block for detailed single material remappings */
+ /* materials[ "m" ] { key data... } */
+ else if ( !_pico_stricmp( p->token,"materials[" ) ) {
+ picoShader_t *shader;
+ char *tempMaterialName;
+ int level = 1;
+
+ /* get material name */
+ if ( !_pico_parse( p,0 ) ) {
+ _prm_error_return;
+ }
+
+ /* temporary copy of material name */
+ tempMaterialName = _pico_clone_alloc( p->token );
+ if ( tempMaterialName == NULL ) {
+ _prm_error_return;
+ }
+
+ /* check square closing bracket */
+ if ( !_pico_parse_check( p,0,"]" ) ) {
+ _prm_error_return;
+ }
+
+ /* try to find material by name */
+ shader = PicoFindShader( model,tempMaterialName,0 );
+
+ /* free memory used by temporary material name */
+ _pico_free( tempMaterialName );
+
+ /* we haven't found a material matching the name */
+ /* so we simply skip the braced section now and */
+ /* continue parsing with the next main token */
+ if ( shader == NULL ) {
+ _pico_parse_skip_braced( p );
+ continue;
+ }
+ /* check opening bracket */
+ if ( !_pico_parse_check( p,1,"{" ) ) {
+ _prm_error_return;
+ }
+
+ /* process material info keys */
+ while ( 1 )
+ {
+ /* get key name */
+ if ( _pico_parse( p,1 ) == NULL ) {
+ break;
+ }
+ if ( !strlen( p->token ) ) {
+ continue;
+ }
+
+ /* handle levels */
+ if ( p->token[0] == '{' ) {
+ level++;
+ }
+ if ( p->token[0] == '}' ) {
+ level--;
+ }
+ if ( !level ) {
+ break;
+ }
+
+ /* remap shader name */
+ if ( !_pico_stricmp( p->token,"shader" ) ) {
+ if ( !_pico_parse( p,0 ) ) {
+ _prm_error_return;
+ }
+ PicoSetShaderName( shader,p->token );
+ }
+ /* remap shader map name */
+ else if ( !_pico_stricmp( p->token,"mapname" ) ) {
+ if ( !_pico_parse( p,0 ) ) {
+ _prm_error_return;
+ }
+ PicoSetShaderMapName( shader,p->token );
+ }
+ /* remap shader's ambient color */
+ else if ( !_pico_stricmp( p->token,"ambient" ) ) {
+ picoColor_t color;
+ picoVec3_t v;
+
+ /* get vector from parser */
+ if ( !_pico_parse_vec( p,v ) ) {
+ _prm_error_return;
+ }
+
+ /* store as color */
+ color[ 0 ] = (picoByte_t)v[ 0 ];
+ color[ 1 ] = (picoByte_t)v[ 1 ];
+ color[ 2 ] = (picoByte_t)v[ 2 ];
+
+ /* set new ambient color */
+ PicoSetShaderAmbientColor( shader,color );
+ }
+ /* remap shader's diffuse color */
+ else if ( !_pico_stricmp( p->token,"diffuse" ) ) {
+ picoColor_t color;
+ picoVec3_t v;
+
+ /* get vector from parser */
+ if ( !_pico_parse_vec( p,v ) ) {
+ _prm_error_return;
+ }
+
+ /* store as color */
+ color[ 0 ] = (picoByte_t)v[ 0 ];
+ color[ 1 ] = (picoByte_t)v[ 1 ];
+ color[ 2 ] = (picoByte_t)v[ 2 ];
+
+ /* set new ambient color */
+ PicoSetShaderDiffuseColor( shader,color );
+ }
+ /* remap shader's specular color */
+ else if ( !_pico_stricmp( p->token,"specular" ) ) {
+ picoColor_t color;
+ picoVec3_t v;
+
+ /* get vector from parser */
+ if ( !_pico_parse_vec( p,v ) ) {
+ _prm_error_return;
+ }
+
+ /* store as color */
+ color[ 0 ] = (picoByte_t)v[ 0 ];
+ color[ 1 ] = (picoByte_t)v[ 1 ];
+ color[ 2 ] = (picoByte_t)v[ 2 ];
+
+ /* set new ambient color */
+ PicoSetShaderSpecularColor( shader,color );
+ }
+ /* skip rest */
+ _pico_parse_skip_rest( p );
+ }
+ }
+ /* end 'materials[' */
+ }
+
+ /* free both parser and file buffer */
+ _pico_free_parser( p );
+ _pico_free_file( remapBuffer );
+
+ /* return with success */
+ return 1;
+}
+
+
+/*
+ PicoAddTriangleToModel() - jhefty
+ A nice way to add individual triangles to the model.
+ Chooses an appropriate surface based on the shader, or adds a new surface if necessary
+ */
+
+void PicoAddTriangleToModel( picoModel_t *model, picoVec3_t** xyz, picoVec3_t** normals,
+ int numSTs, picoVec2_t **st, int numColors, picoColor_t **colors,
+ picoShader_t* shader, const char *name, picoIndex_t* smoothingGroup ){
+ int i,j;
+ int vertDataIndex;
+ picoSurface_t* workSurface = NULL;
+
+ /* see if a surface already has the shader */
+ for ( i = 0 ; i < model->numSurfaces ; i++ )
+ {
+ workSurface = model->surface[i];
+ if ( !name || !strcmp( workSurface->name, name ) ) {
+ if ( workSurface->shader == shader ) {
+ break;
+ }
+ }
+ }
+
+ /* no surface uses this shader yet, so create a new surface */
+ if ( !workSurface || i >= model->numSurfaces ) {
+ /* create a new surface in the model for the unique shader */
+ workSurface = PicoNewSurface( model );
+ if ( !workSurface ) {
+ _pico_printf( PICO_ERROR, "Could not allocate a new surface!\n" );
+ return;
+ }
+
+ /* do surface setup */
+ PicoSetSurfaceType( workSurface, PICO_TRIANGLES );
+ PicoSetSurfaceName( workSurface, name ? name : shader->name );
+ PicoSetSurfaceShader( workSurface, shader );
+ }
+
+ /* add the triangle data to the surface */
+ for ( i = 0 ; i < 3 ; i++ )
+ {
+ /* get the next free spot in the index array */
+ int newVertIndex = PicoGetSurfaceNumIndexes( workSurface );
+
+ /* get the index of the vertex that we're going to store at newVertIndex */
+ vertDataIndex = PicoFindSurfaceVertexNum( workSurface, *xyz[i], *normals[i], numSTs, st[i], numColors, colors[i], smoothingGroup[i] );
+
+ /* the vertex wasn't found, so create a new vertex in the pool from the data we have */
+ if ( vertDataIndex == -1 ) {
+ /* find the next spot for a new vertex */
+ vertDataIndex = PicoGetSurfaceNumVertexes( workSurface );
+
+ /* assign the data to it */
+ PicoSetSurfaceXYZ( workSurface,vertDataIndex, *xyz[i] );
+ PicoSetSurfaceNormal( workSurface, vertDataIndex, *normals[i] );
+
+ /* make sure to copy over all available ST's and colors for the vertex */
+ for ( j = 0 ; j < numColors ; j++ )
+ {
+ PicoSetSurfaceColor( workSurface, j, vertDataIndex, colors[i][j] );
+ }
+ for ( j = 0 ; j < numSTs ; j++ )
+ {
+ PicoSetSurfaceST( workSurface, j, vertDataIndex, st[i][j] );
+ }
+
+ PicoSetSurfaceSmoothingGroup( workSurface, vertDataIndex, smoothingGroup[i] );
+ }
+
+ /* add this vertex to the triangle */
+ PicoSetSurfaceIndex( workSurface, newVertIndex, vertDataIndex );
+ }
+}
projects / xonotic / netradiant.git / blobdiff