+++ /dev/null
-/* -----------------------------------------------------------------------------
-
-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, 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, 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 ( 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], 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 / voretournament / voretournament.git / blobdiff