mirror of
https://github.com/UberGames/GtkRadiant.git
synced 2024-11-25 13:21:47 +00:00
2066 lines
47 KiB
C
2066 lines
47 KiB
C
/* -----------------------------------------------------------------------------
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PicoModel Library
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Copyright (c) 2002, Randy Reddig & seaw0lf
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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Neither the names of the copyright holders nor the names of its contributors may
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be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------------- */
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/* marker */
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#define PICOMODEL_C
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/* dependencies */
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#include "picointernal.h"
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/*
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PicoInit()
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initializes the picomodel library
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*/
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int PicoInit( void ){
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/* successfully initialized -sea */
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return 1;
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}
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/*
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PicoShutdown()
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shuts the pico model library down
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*/
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void PicoShutdown( void ){
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/* do something interesting here in the future */
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return;
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}
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/*
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PicoError()
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returns last picomodel error code (see PME_* defines)
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*/
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int PicoError( void ){
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/* todo: do something here */
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return 0;
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}
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/*
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PicoSetMallocFunc()
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sets the ptr to the malloc function
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*/
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void PicoSetMallocFunc( void *( *func )( size_t ) ){
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if ( func != NULL ) {
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_pico_ptr_malloc = func;
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}
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}
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/*
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PicoSetFreeFunc()
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sets the ptr to the free function
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*/
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void PicoSetFreeFunc( void ( *func )( void* ) ){
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if ( func != NULL ) {
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_pico_ptr_free = func;
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}
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}
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/*
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PicoSetLoadFileFunc()
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sets the ptr to the file load function
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*/
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void PicoSetLoadFileFunc( void ( *func )( char*, unsigned char**, int* ) ){
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if ( func != NULL ) {
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_pico_ptr_load_file = func;
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}
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}
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/*
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PicoSetFreeFileFunc()
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sets the ptr to the free function
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*/
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void PicoSetFreeFileFunc( void ( *func )( void* ) ){
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if ( func != NULL ) {
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_pico_ptr_free_file = func;
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}
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}
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/*
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PicoSetPrintFunc()
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sets the ptr to the print function
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*/
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void PicoSetPrintFunc( void ( *func )( int, const char* ) ){
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if ( func != NULL ) {
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_pico_ptr_print = func;
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}
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}
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/*
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PicoLoadModel()
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the meat and potatoes function
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*/
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picoModel_t *PicoLoadModel( char *fileName, int frameNum ){
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const picoModule_t **modules, *pm;
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picoModel_t *model;
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picoByte_t *buffer;
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int bufSize;
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char *modelFileName, *remapFileName;
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/* init */
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model = NULL;
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/* make sure we've got a file name */
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if ( fileName == NULL ) {
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_pico_printf( PICO_ERROR, "PicoLoadModel: No filename given (fileName == NULL)" );
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return NULL;
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}
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/* load file data (buffer is allocated by host app) */
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_pico_load_file( fileName, &buffer, &bufSize );
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if ( bufSize < 0 ) {
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_pico_printf( PICO_ERROR, "PicoLoadModel: Failed loading model %s", fileName );
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return NULL;
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}
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/* get ptr to list of supported modules */
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modules = PicoModuleList( NULL );
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/* run it through the various loader functions and try */
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/* to find a loader that fits the given file data */
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for ( ; *modules != NULL; modules++ )
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{
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/* get module */
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pm = *modules;
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/* sanity check */
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if ( pm == NULL ) {
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break;
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}
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/* module must be able to load */
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if ( pm->canload == NULL || pm->load == NULL ) {
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continue;
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}
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/* see whether this module can load the model file or not */
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if ( pm->canload( fileName, buffer, bufSize ) == PICO_PMV_OK ) {
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/* use loader provided by module to read the model data */
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model = pm->load( fileName, frameNum, buffer, bufSize );
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if ( model == NULL ) {
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_pico_free_file( buffer );
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return NULL;
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}
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/* assign pointer to file format module */
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model->module = pm;
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/* get model file name */
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modelFileName = PicoGetModelFileName( model );
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/* apply model remappings from <model>.remap */
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if ( strlen( modelFileName ) ) {
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/* alloc copy of model file name */
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remapFileName = _pico_alloc( strlen( modelFileName ) + 20 );
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if ( remapFileName != NULL ) {
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/* copy model file name and change extension */
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strcpy( remapFileName, modelFileName );
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_pico_setfext( remapFileName, "remap" );
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/* try to remap model; we don't handle the result */
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PicoRemapModel( model, remapFileName );
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/* free the remap file name string */
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_pico_free( remapFileName );
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}
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}
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/* model was loaded, so break out of loop */
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break;
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}
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}
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/* free memory used by file buffer */
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if ( buffer ) {
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_pico_free_file( buffer );
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}
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/* return */
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return model;
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}
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/* ----------------------------------------------------------------------------
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models
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---------------------------------------------------------------------------- */
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/*
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PicoNewModel()
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creates a new pico model
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*/
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picoModel_t *PicoNewModel( void ){
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picoModel_t *model;
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/* allocate */
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model = _pico_alloc( sizeof( picoModel_t ) );
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if ( model == NULL ) {
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return NULL;
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}
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/* clear */
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memset( model,0,sizeof( picoModel_t ) );
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/* model set up */
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_pico_zero_bounds( model->mins,model->maxs );
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/* set initial frame count to 1 -sea */
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model->numFrames = 1;
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/* return ptr to new model */
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return model;
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}
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/*
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PicoFreeModel()
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frees a model and all associated data
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*/
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void PicoFreeModel( picoModel_t *model ){
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int i;
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/* sanity check */
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if ( model == NULL ) {
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return;
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}
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/* free bits */
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if ( model->name ) {
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_pico_free( model->name );
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}
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/* free shaders */
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for ( i = 0; i < model->numShaders; i++ )
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PicoFreeShader( model->shader[ i ] );
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free( model->shader );
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/* free surfaces */
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for ( i = 0; i < model->numSurfaces; i++ )
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PicoFreeSurface( model->surface[ i ] );
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free( model->surface );
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/* free the model */
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_pico_free( model );
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}
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/*
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PicoAdjustModel()
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adjusts a models's memory allocations to handle the requested sizes.
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will always grow, never shrink
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*/
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int PicoAdjustModel( picoModel_t *model, int numShaders, int numSurfaces ){
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/* dummy check */
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if ( model == NULL ) {
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return 0;
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}
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/* bare minimums */
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/* sea: null surface/shader fix (1s=>0s) */
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if ( numShaders < 0 ) {
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numShaders = 0;
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}
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if ( numSurfaces < 0 ) {
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numSurfaces = 0;
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}
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/* additional shaders? */
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while ( numShaders > model->maxShaders )
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{
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model->maxShaders += PICO_GROW_SHADERS;
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if ( !_pico_realloc( (void *) &model->shader, model->numShaders * sizeof( *model->shader ), model->maxShaders * sizeof( *model->shader ) ) ) {
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return 0;
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}
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}
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/* set shader count to higher */
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if ( numShaders > model->numShaders ) {
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model->numShaders = numShaders;
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}
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/* additional surfaces? */
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while ( numSurfaces > model->maxSurfaces )
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{
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model->maxSurfaces += PICO_GROW_SURFACES;
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if ( !_pico_realloc( (void *) &model->surface, model->numSurfaces * sizeof( *model->surface ), model->maxSurfaces * sizeof( *model->surface ) ) ) {
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return 0;
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}
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}
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/* set shader count to higher */
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if ( numSurfaces > model->numSurfaces ) {
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model->numSurfaces = numSurfaces;
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}
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/* return ok */
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return 1;
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}
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/* ----------------------------------------------------------------------------
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shaders
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---------------------------------------------------------------------------- */
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/*
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PicoNewShader()
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creates a new pico shader and returns its index. -sea
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*/
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picoShader_t *PicoNewShader( picoModel_t *model ){
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picoShader_t *shader;
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/* allocate and clear */
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shader = _pico_alloc( sizeof( picoShader_t ) );
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if ( shader == NULL ) {
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return NULL;
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}
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memset( shader, 0, sizeof( picoShader_t ) );
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/* attach it to the model */
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if ( model != NULL ) {
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/* adjust model */
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if ( !PicoAdjustModel( model, model->numShaders + 1, 0 ) ) {
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_pico_free( shader );
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return NULL;
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}
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/* attach */
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model->shader[ model->numShaders - 1 ] = shader;
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shader->model = model;
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}
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/* setup default shader colors */
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_pico_set_color( shader->ambientColor,0,0,0,0 );
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_pico_set_color( shader->diffuseColor,255,255,255,1 );
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_pico_set_color( shader->specularColor,0,0,0,0 );
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/* no need to do this, but i do it anyway */
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shader->transparency = 0;
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shader->shininess = 0;
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/* return the newly created shader */
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return shader;
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}
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/*
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PicoFreeShader()
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frees a shader and all associated data -sea
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*/
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void PicoFreeShader( picoShader_t *shader ){
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/* dummy check */
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if ( shader == NULL ) {
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return;
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}
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/* free bits */
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if ( shader->name ) {
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_pico_free( shader->name );
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}
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if ( shader->mapName ) {
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_pico_free( shader->mapName );
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}
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/* free the shader */
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_pico_free( shader );
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}
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/*
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PicoFindShader()
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finds a named shader in a model
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*/
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picoShader_t *PicoFindShader( picoModel_t *model, char *name, int caseSensitive ){
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int i;
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/* sanity checks */
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if ( model == NULL || name == NULL ) { /* sea: null name fix */
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return NULL;
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}
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/* walk list */
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for ( i = 0; i < model->numShaders; i++ )
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{
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/* skip null shaders or shaders with null names */
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if ( model->shader[ i ] == NULL ||
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model->shader[ i ]->name == NULL ) {
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continue;
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}
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/* compare the shader name with name we're looking for */
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if ( caseSensitive ) {
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if ( !strcmp( name, model->shader[ i ]->name ) ) {
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return model->shader[ i ];
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}
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}
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else if ( !_pico_stricmp( name, model->shader[ i ]->name ) ) {
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return model->shader[ i ];
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}
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}
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/* named shader not found */
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return NULL;
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}
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/* ----------------------------------------------------------------------------
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surfaces
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---------------------------------------------------------------------------- */
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/*
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PicoNewSurface()
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creates a new pico surface
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*/
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picoSurface_t *PicoNewSurface( picoModel_t *model ){
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picoSurface_t *surface;
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char surfaceName[64];
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/* allocate and clear */
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surface = _pico_alloc( sizeof( *surface ) );
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if ( surface == NULL ) {
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return NULL;
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}
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memset( surface, 0, sizeof( *surface ) );
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/* attach it to the model */
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if ( model != NULL ) {
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/* adjust model */
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if ( !PicoAdjustModel( model, 0, model->numSurfaces + 1 ) ) {
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_pico_free( surface );
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return NULL;
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}
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/* attach */
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model->surface[ model->numSurfaces - 1 ] = surface;
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surface->model = model;
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/* set default name */
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sprintf( surfaceName, "Unnamed_%d", model->numSurfaces );
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PicoSetSurfaceName( surface, surfaceName );
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}
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/* return */
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return surface;
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}
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/*
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PicoFreeSurface()
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frees a surface and all associated data
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*/
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void PicoFreeSurface( picoSurface_t *surface ){
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int i;
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/* dummy check */
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if ( surface == NULL ) {
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return;
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}
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/* free bits */
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_pico_free( surface->xyz );
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_pico_free( surface->normal );
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_pico_free( surface->index );
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_pico_free( surface->faceNormal );
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/* free arrays */
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for ( i = 0; i < surface->numSTArrays; i++ )
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_pico_free( surface->st[ i ] );
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free( surface->st );
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for ( i = 0; i < surface->numColorArrays; i++ )
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_pico_free( surface->color[ i ] );
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free( surface->color );
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/* free the surface */
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_pico_free( surface );
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}
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/*
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PicoAdjustSurface()
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adjusts a surface's memory allocations to handle the requested sizes.
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will always grow, never shrink
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*/
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int PicoAdjustSurface( picoSurface_t *surface, int numVertexes, int numSTArrays, int numColorArrays, int numIndexes, int numFaceNormals ){
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int i;
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/* dummy check */
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if ( surface == NULL ) {
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return 0;
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}
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/* bare minimums */
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if ( numVertexes < 1 ) {
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numVertexes = 1;
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}
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if ( numSTArrays < 1 ) {
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numSTArrays = 1;
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}
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if ( numColorArrays < 1 ) {
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numColorArrays = 1;
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}
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if ( numIndexes < 1 ) {
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numIndexes = 1;
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}
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/* additional vertexes? */
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while ( numVertexes > surface->maxVertexes ) /* fix */
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{
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surface->maxVertexes += PICO_GROW_VERTEXES;
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if ( !_pico_realloc( (void *) &surface->xyz, surface->numVertexes * sizeof( *surface->xyz ), surface->maxVertexes * sizeof( *surface->xyz ) ) ) {
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return 0;
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}
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if ( !_pico_realloc( (void *) &surface->normal, surface->numVertexes * sizeof( *surface->normal ), surface->maxVertexes * sizeof( *surface->normal ) ) ) {
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return 0;
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}
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for ( i = 0; i < surface->numSTArrays; i++ )
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if ( !_pico_realloc( (void*) &surface->st[ i ], surface->numVertexes * sizeof( *surface->st[ i ] ), surface->maxVertexes * sizeof( *surface->st[ i ] ) ) ) {
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return 0;
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}
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for ( i = 0; i < surface->numColorArrays; i++ )
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if ( !_pico_realloc( (void*) &surface->color[ i ], surface->numVertexes * sizeof( *surface->color[ i ] ), surface->maxVertexes * sizeof( *surface->color[ i ] ) ) ) {
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return 0;
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}
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}
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/* set vertex count to higher */
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if ( numVertexes > surface->numVertexes ) {
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surface->numVertexes = numVertexes;
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}
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/* additional st arrays? */
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while ( numSTArrays > surface->maxSTArrays ) /* fix */
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{
|
|
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, char *name ){
|
|
if ( model == NULL || name == NULL ) {
|
|
return;
|
|
}
|
|
if ( model->name != NULL ) {
|
|
_pico_free( model->name );
|
|
}
|
|
|
|
model->name = _pico_clone_alloc( name,-1 );
|
|
}
|
|
|
|
|
|
|
|
void PicoSetModelFileName( picoModel_t *model, char *fileName ){
|
|
if ( model == NULL || fileName == NULL ) {
|
|
return;
|
|
}
|
|
if ( model->fileName != NULL ) {
|
|
_pico_free( model->fileName );
|
|
}
|
|
|
|
model->fileName = _pico_clone_alloc( fileName,-1 );
|
|
}
|
|
|
|
|
|
|
|
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,-1 );
|
|
}
|
|
|
|
|
|
|
|
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,-1 );
|
|
}
|
|
|
|
|
|
|
|
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, char *name ){
|
|
if ( surface == NULL || name == NULL ) {
|
|
return;
|
|
}
|
|
if ( surface->name != NULL ) {
|
|
_pico_free( surface->name );
|
|
}
|
|
|
|
surface->name = _pico_clone_alloc( name,-1 );
|
|
}
|
|
|
|
|
|
|
|
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 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 ];
|
|
}
|
|
|
|
|
|
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 ){
|
|
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 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;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
PicoFixSurfaceNormals()
|
|
fixes broken normals (certain formats bork normals)
|
|
*/
|
|
|
|
#define MAX_NORMAL_VOTES 128
|
|
#define EQUAL_NORMAL_EPSILON 0.01
|
|
#define BAD_NORMAL_EPSILON 0.5
|
|
|
|
void PicoFixSurfaceNormals( picoSurface_t *surface ){
|
|
int i, j, k, a, b, c, numVotes, faceIndex;
|
|
picoVec3_t votes[ MAX_NORMAL_VOTES ];
|
|
picoVec3_t *normals, diff;
|
|
picoVec4_t plane;
|
|
|
|
|
|
/* dummy check */
|
|
if ( surface == NULL || surface->numVertexes == 0 ) {
|
|
return;
|
|
}
|
|
|
|
/* fixme: handle other surface types */
|
|
if ( surface->type != PICO_TRIANGLES ) {
|
|
return;
|
|
}
|
|
|
|
/* allocate normal storage */
|
|
normals = _pico_alloc( surface->numVertexes * sizeof( *normals ) );
|
|
if ( normals == NULL ) {
|
|
_pico_printf( PICO_ERROR, "PicoFixSurfaceNormals: Unable to allocate memory for temporary normal storage" );
|
|
return;
|
|
}
|
|
|
|
/* zero it out */
|
|
memset( normals, 0, surface->numVertexes * sizeof( *normals ) );
|
|
|
|
/* walk vertex list */
|
|
for ( i = 0; i < surface->numVertexes; i++ )
|
|
{
|
|
/* zero out votes */
|
|
numVotes = 0;
|
|
|
|
/* find all the triangles that reference this vertex */
|
|
for ( j = 0, faceIndex = 0; j < surface->numIndexes; j += 3, faceIndex++ )
|
|
{
|
|
/* get triangle */
|
|
a = surface->index[ j ];
|
|
b = surface->index[ j + 1 ];
|
|
c = surface->index[ j + 2 ];
|
|
|
|
/* ignore degenerate triangles */
|
|
if ( a == b || b == c || c == a ) {
|
|
continue;
|
|
}
|
|
|
|
/* ignore indexes out of range */
|
|
if ( a < 0 || a >= surface->numVertexes ||
|
|
b < 0 || b >= surface->numVertexes ||
|
|
c < 0 || c >= surface->numVertexes ) {
|
|
continue;
|
|
}
|
|
|
|
/* test triangle */
|
|
if ( a == i || b == i || c == i ) {
|
|
/* if this surface has face normals */
|
|
if ( surface->numFaceNormals && faceIndex < surface->numFaceNormals ) {
|
|
_pico_copy_vec( surface->faceNormal[ faceIndex ], plane );
|
|
if ( plane[ 0 ] == 0.f && plane[ 1 ] == 0.f && plane[ 2 ] == 0.f ) {
|
|
/* if null normal, make plane from the 3 points */
|
|
if ( _pico_calc_plane( plane, surface->xyz[ a ], surface->xyz[ b ], surface->xyz[ c ] ) == 0 ) {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
/* make a plane from the 3 points */
|
|
else if ( _pico_calc_plane( plane, surface->xyz[ a ], surface->xyz[ b ], surface->xyz[ c ] ) == 0 ) {
|
|
continue;
|
|
}
|
|
|
|
/* see if this normal has already been voted */
|
|
for ( k = 0; k < numVotes; k++ )
|
|
{
|
|
_pico_subtract_vec( plane, votes[ k ], diff );
|
|
if ( fabs( diff[ 0 ] ) < EQUAL_NORMAL_EPSILON &&
|
|
fabs( diff[ 1 ] ) < EQUAL_NORMAL_EPSILON &&
|
|
fabs( diff[ 2 ] ) < EQUAL_NORMAL_EPSILON ) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* add a new vote? */
|
|
if ( k == numVotes && numVotes < MAX_NORMAL_VOTES ) {
|
|
_pico_copy_vec( plane, votes[ numVotes ] );
|
|
numVotes++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* tally votes */
|
|
if ( numVotes > 0 ) {
|
|
/* create average normal */
|
|
_pico_zero_vec( normals[ i ] );
|
|
for ( k = 0; k < numVotes; k++ )
|
|
_pico_add_vec( normals[ i ], votes[ k ], normals[ i ] );
|
|
|
|
/* normalize it */
|
|
if ( _pico_normalize_vec( normals[ i ] ) ) {
|
|
/* test against actual normal */
|
|
if ( fabs( _pico_dot_vec( normals[ i ], surface->normal[ i ] ) - 1 ) > BAD_NORMAL_EPSILON ) {
|
|
//% printf( "Normal %8d: (%f %f %f) -> (%f %f %f)\n", i,
|
|
//% surface->normal[ i ][ 0 ], surface->normal[ i ][ 1 ], surface->normal[ i ][ 2 ],
|
|
//% normals[ i ][ 0 ], normals[ i ][ 1 ], normals[ i ][ 2 ] );
|
|
_pico_copy_vec( normals[ i ], surface->normal[ i ] );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* free normal storage */
|
|
_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 ){
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picoParser_t *p;
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picoByte_t *remapBuffer;
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int remapBufSize;
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/* sanity checks */
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if ( model == NULL || remapFile == NULL ) {
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return 0;
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}
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/* load remap file contents */
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_pico_load_file( remapFile,&remapBuffer,&remapBufSize );
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/* check result */
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if ( remapBufSize == 0 ) {
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return 1; /* file is empty: no error */
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}
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if ( remapBufSize < 0 ) {
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return 0; /* load failed: error */
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}
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/* create a new pico parser */
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p = _pico_new_parser( remapBuffer, remapBufSize );
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if ( p == NULL ) {
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/* ram is really cheap nowadays... */
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_prm_error_return;
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}
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/* doo teh parse */
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while ( 1 )
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{
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/* get next token in remap file */
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if ( !_pico_parse( p,1 ) ) {
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break;
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}
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/* skip over c++ style comment lines */
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if ( !_pico_stricmp( p->token,"//" ) ) {
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_pico_parse_skip_rest( p );
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continue;
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}
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/* block for quick material shader name remapping */
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/* materials { "m" (=>|->|=) "s" } */
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if ( !_pico_stricmp( p->token, "materials" ) ) {
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int level = 1;
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/* check bracket */
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if ( !_pico_parse_check( p,1,"{" ) ) {
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_prm_error_return;
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}
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/* process assignments */
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while ( 1 )
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{
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picoShader_t *shader;
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char *materialName;
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/* get material name */
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if ( _pico_parse( p,1 ) == NULL ) {
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break;
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}
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if ( !strlen( p->token ) ) {
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continue;
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}
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materialName = _pico_clone_alloc( p->token,-1 );
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if ( materialName == NULL ) {
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_prm_error_return;
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}
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/* handle levels */
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if ( p->token[0] == '{' ) {
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level++;
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}
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if ( p->token[0] == '}' ) {
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level--;
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}
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if ( !level ) {
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break;
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}
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/* get next token (assignment token or shader name) */
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if ( !_pico_parse( p,0 ) ) {
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_pico_free( materialName );
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_prm_error_return;
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}
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/* skip assignment token (if present) */
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if ( !strcmp( p->token,"=>" ) ||
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!strcmp( p->token,"->" ) ||
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!strcmp( p->token,"=" ) ) {
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/* simply grab the next token */
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if ( !_pico_parse( p,0 ) ) {
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_pico_free( materialName );
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_prm_error_return;
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}
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}
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/* try to find material by name */
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shader = PicoFindShader( model,materialName,0 );
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/* we've found a material matching the name */
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if ( shader != NULL ) {
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PicoSetShaderName( shader,p->token );
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}
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/* free memory used by material name */
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_pico_free( materialName );
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/* skip rest */
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_pico_parse_skip_rest( p );
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}
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}
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/* block for detailed single material remappings */
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/* materials[ "m" ] { key data... } */
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else if ( !_pico_stricmp( p->token,"materials[" ) ) {
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picoShader_t *shader;
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char *tempMaterialName;
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int level = 1;
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/* get material name */
|
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if ( !_pico_parse( p,0 ) ) {
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_prm_error_return;
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}
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/* temporary copy of material name */
|
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tempMaterialName = _pico_clone_alloc( p->token,-1 );
|
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if ( tempMaterialName == NULL ) {
|
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_prm_error_return;
|
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}
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/* check square closing bracket */
|
|
if ( !_pico_parse_check( p,0,"]" ) ) {
|
|
_prm_error_return;
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}
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|
|
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/* try to find material by name */
|
|
shader = PicoFindShader( model,tempMaterialName,0 );
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|
|
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/* free memory used by temporary material name */
|
|
_pico_free( tempMaterialName );
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/* we haven't found a material matching the name */
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|
/* so we simply skip the braced section now and */
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|
/* continue parsing with the next main token */
|
|
if ( shader == NULL ) {
|
|
_pico_parse_skip_braced( p );
|
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continue;
|
|
}
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|
/* check opening bracket */
|
|
if ( !_pico_parse_check( p,1,"{" ) ) {
|
|
_prm_error_return;
|
|
}
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|
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/* 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;
|
|
}
|
|
|
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/* remap shader name */
|
|
if ( !_pico_stricmp( p->token,"shader" ) ) {
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if ( !_pico_parse( p,0 ) ) {
|
|
_prm_error_return;
|
|
}
|
|
PicoSetShaderName( shader,p->token );
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|
}
|
|
/* 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;
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|
|
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/* get vector from parser */
|
|
if ( !_pico_parse_vec( p,v ) ) {
|
|
_prm_error_return;
|
|
}
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|
|
|
/* store as color */
|
|
color[ 0 ] = (picoByte_t)v[ 0 ];
|
|
color[ 1 ] = (picoByte_t)v[ 1 ];
|
|
color[ 2 ] = (picoByte_t)v[ 2 ];
|
|
color[ 3 ] = 1;
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|
|
|
/* set new ambient color */
|
|
PicoSetShaderAmbientColor( shader,color );
|
|
}
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|
/* remap shader's diffuse color */
|
|
else if ( !_pico_stricmp( p->token,"diffuse" ) ) {
|
|
picoColor_t color;
|
|
picoVec3_t v;
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|
|
/* 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 ];
|
|
color[ 3 ] = 1;
|
|
|
|
/* 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 ];
|
|
color[ 3 ] = 1;
|
|
|
|
/* 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 ){
|
|
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 ( 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, 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] );
|
|
|
|
/* 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] );
|
|
}
|
|
}
|
|
|
|
/* add this vertex to the triangle */
|
|
PicoSetSurfaceIndex( workSurface, newVertIndex, vertDataIndex );
|
|
}
|
|
}
|