352 lines
15 KiB
C
352 lines
15 KiB
C
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/* -----------------------------------------------------------------------------
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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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#ifndef PICOMODEL_H
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#define PICOMODEL_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stddef.h>
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/* version */
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#define PICOMODEL_VERSION "0.8.20"
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/* constants */
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#define PICO_GROW_SHADERS 16
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#define PICO_GROW_SURFACES 16
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#define PICO_GROW_VERTEXES 1024
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#define PICO_GROW_INDEXES 1024
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#define PICO_GROW_ARRAYS 8
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#define PICO_GROW_FACES 256
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#define PICO_MAX_SPECIAL 8
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#define PICO_MAX_DEFAULT_EXTS 4 /* max default extensions per module */
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/* types */
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typedef unsigned char picoByte_t;
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typedef float picoVec_t;
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typedef float picoVec2_t[ 2 ];
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typedef float picoVec3_t[ 3 ];
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typedef float picoVec4_t[ 4 ];
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typedef picoByte_t picoColor_t[ 4 ];
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typedef int picoIndex_t;
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typedef enum
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{
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PICO_BAD,
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PICO_TRIANGLES,
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PICO_PATCH
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}
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picoSurfaceType_t;
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typedef enum
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{
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PICO_NORMAL,
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PICO_VERBOSE,
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PICO_WARNING,
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PICO_ERROR,
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PICO_FATAL
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}
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picoPrintLevel_t;
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typedef struct picoSurface_s picoSurface_t;
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typedef struct picoShader_s picoShader_t;
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typedef struct picoModel_s picoModel_t;
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typedef struct picoModule_s picoModule_t;
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struct picoSurface_s
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{
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void *data;
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picoModel_t *model; /* owner model */
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picoSurfaceType_t type;
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char *name; /* sea: surface name */
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picoShader_t *shader; /* ydnar: changed to ptr */
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int numVertexes, maxVertexes;
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picoVec3_t *xyz;
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picoVec3_t *normal;
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picoIndex_t *smoothingGroup;
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int numSTArrays, maxSTArrays;
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picoVec2_t **st;
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int numColorArrays, maxColorArrays;
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picoColor_t **color;
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int numIndexes, maxIndexes;
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picoIndex_t *index;
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int numFaceNormals, maxFaceNormals;
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picoVec3_t *faceNormal;
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int special[ PICO_MAX_SPECIAL ];
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};
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/* seaw0lf */
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struct picoShader_s
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{
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picoModel_t *model; /* owner model */
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char *name; /* shader name */
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char *mapName; /* shader file name (name of diffuse texturemap) */
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picoColor_t ambientColor; /* ambient color of mesh (rgba) */
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picoColor_t diffuseColor; /* diffuse color of mesh (rgba) */
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picoColor_t specularColor; /* specular color of mesh (rgba) */
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float transparency; /* transparency (0..1; 1 = 100% transparent) */
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float shininess; /* shininess (0..128; 128 = 100% shiny) */
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};
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struct picoModel_s
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{
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void *data;
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char *name; /* model name */
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char *fileName; /* sea: model file name */
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int frameNum; /* sea: renamed to frameNum */
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int numFrames; /* sea: number of frames */
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picoVec3_t mins;
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picoVec3_t maxs;
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int numShaders, maxShaders;
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picoShader_t **shader;
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int numSurfaces, maxSurfaces;
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picoSurface_t **surface;
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const picoModule_t *module; /* sea */
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};
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/* seaw0lf */
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/* return codes used by the validation callbacks; pmv is short */
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/* for 'pico module validation'. everything >PICO_PMV_OK means */
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/* that there was an error. */
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enum
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{
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PICO_PMV_OK, /* file valid */
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PICO_PMV_ERROR, /* file not valid */
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PICO_PMV_ERROR_IDENT, /* unknown file magic (aka ident) */
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PICO_PMV_ERROR_VERSION, /* unsupported file version */
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PICO_PMV_ERROR_SIZE, /* file size error */
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PICO_PMV_ERROR_MEMORY, /* out of memory error */
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};
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/* convenience (makes it easy to add new params to the callbacks) */
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#define PM_PARAMS_CANLOAD \
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const char *fileName, const void *buffer, int bufSize
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#define PM_PARAMS_LOAD \
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const char *fileName, int frameNum, const void *buffer, int bufSize
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#define PM_PARAMS_CANSAVE \
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void
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#define PM_PARAMS_SAVE \
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const char *fileName, picoModel_t * model
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/* pico file format module structure */
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struct picoModule_s
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{
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char *version; /* internal module version (e.g. '1.5-b2') */
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char *displayName; /* string used to display in guis, etc. */
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char *authorName; /* author name (eg. 'My Real Name') */
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char *copyright; /* copyright year and holder (eg. '2002 My Company') */
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char *defaultExts[ PICO_MAX_DEFAULT_EXTS ]; /* default file extensions used by this file type */
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int ( *canload )( PM_PARAMS_CANLOAD ); /* checks whether module can load given file (returns PMVR_*) */
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picoModel_t *( *load )( PM_PARAMS_LOAD ); /* parses model file data */
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int ( *cansave )( PM_PARAMS_CANSAVE ); /* checks whether module can save (returns 1 or 0 and might spit out a message) */
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int ( *save )( PM_PARAMS_SAVE ); /* saves a pico model in module's native model format */
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};
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/* general functions */
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int PicoInit( void );
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void PicoShutdown( void );
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int PicoError( void );
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void PicoSetMallocFunc( void *( *func )( size_t ) );
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void PicoSetFreeFunc( void ( *func )( void* ) );
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void PicoSetLoadFileFunc( void ( *func )( const char*, unsigned char**, int* ) );
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void PicoSetFreeFileFunc( void ( *func )( void* ) );
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void PicoSetPrintFunc( void ( *func )( int, const char* ) );
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const picoModule_t **PicoModuleList( int *numModules );
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picoModel_t *PicoLoadModel( const char *name, int frameNum );
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typedef size_t ( *PicoInputStreamReadFunc )( void* inputStream, unsigned char* buffer, size_t length );
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picoModel_t* PicoModuleLoadModelStream( const picoModule_t* module, void* inputStream, PicoInputStreamReadFunc inputStreamRead, size_t streamLength, int frameNum, const char *fileName );
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/* model functions */
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picoModel_t *PicoNewModel( void );
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void PicoFreeModel( picoModel_t *model );
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int PicoAdjustModel( picoModel_t *model, int numShaders, int numSurfaces );
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/* shader functions */
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picoShader_t *PicoNewShader( picoModel_t *model );
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void PicoFreeShader( picoShader_t *shader );
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picoShader_t *PicoFindShader( picoModel_t *model, char *name, int caseSensitive );
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/* surface functions */
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picoSurface_t *PicoNewSurface( picoModel_t *model );
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void PicoFreeSurface( picoSurface_t *surface );
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picoSurface_t *PicoFindSurface( picoModel_t *model, char *name, int caseSensitive );
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int PicoAdjustSurface( picoSurface_t *surface, int numVertexes, int numSTArrays, int numColorArrays, int numIndexes, int numFaceNormals );
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/* setter functions */
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void PicoSetModelName( picoModel_t *model, const char *name );
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void PicoSetModelFileName( picoModel_t *model, const char *fileName );
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void PicoSetModelFrameNum( picoModel_t *model, int frameNum );
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void PicoSetModelNumFrames( picoModel_t *model, int numFrames );
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void PicoSetModelData( picoModel_t *model, void *data );
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void PicoSetShaderName( picoShader_t *shader, const char *name );
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void PicoSetShaderMapName( picoShader_t *shader, char *mapName );
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void PicoSetShaderAmbientColor( picoShader_t *shader, picoColor_t color );
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void PicoSetShaderDiffuseColor( picoShader_t *shader, picoColor_t color );
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void PicoSetShaderSpecularColor( picoShader_t *shader, picoColor_t color );
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void PicoSetShaderTransparency( picoShader_t *shader, float value );
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void PicoSetShaderShininess( picoShader_t *shader, float value );
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void PicoSetSurfaceData( picoSurface_t *surface, void *data );
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void PicoSetSurfaceType( picoSurface_t *surface, picoSurfaceType_t type );
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void PicoSetSurfaceName( picoSurface_t *surface, const char *name );
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void PicoSetSurfaceShader( picoSurface_t *surface, picoShader_t *shader );
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void PicoSetSurfaceXYZ( picoSurface_t *surface, int num, picoVec3_t xyz );
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void PicoSetSurfaceNormal( picoSurface_t *surface, int num, picoVec3_t normal );
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void PicoSetSurfaceST( picoSurface_t *surface, int array, int num, picoVec2_t st );
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void PicoSetSurfaceColor( picoSurface_t *surface, int array, int num, picoColor_t color );
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void PicoSetSurfaceIndex( picoSurface_t *surface, int num, picoIndex_t index );
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void PicoSetSurfaceIndexes( picoSurface_t *surface, int num, picoIndex_t *index, int count );
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void PicoSetFaceNormal( picoSurface_t *surface, int num, picoVec3_t normal );
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void PicoSetSurfaceSpecial( picoSurface_t *surface, int num, int special );
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void PicoSetSurfaceSmoothingGroup( picoSurface_t *surface, int num, picoIndex_t smoothingGroup );
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/* getter functions */
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char *PicoGetModelName( picoModel_t *model );
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char *PicoGetModelFileName( picoModel_t *model );
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int PicoGetModelFrameNum( picoModel_t *model );
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int PicoGetModelNumFrames( picoModel_t *model );
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void *PicoGetModelData( picoModel_t *model );
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int PicoGetModelNumShaders( picoModel_t *model );
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picoShader_t *PicoGetModelShader( picoModel_t *model, int num ); /* sea */
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int PicoGetModelNumSurfaces( picoModel_t *model );
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picoSurface_t *PicoGetModelSurface( picoModel_t *model, int num );
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int PicoGetModelTotalVertexes( picoModel_t *model );
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int PicoGetModelTotalIndexes( picoModel_t *model );
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char *PicoGetShaderName( picoShader_t *shader );
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char *PicoGetShaderMapName( picoShader_t *shader );
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picoByte_t *PicoGetShaderAmbientColor( picoShader_t *shader );
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picoByte_t *PicoGetShaderDiffuseColor( picoShader_t *shader );
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picoByte_t *PicoGetShaderSpecularColor( picoShader_t *shader );
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float PicoGetShaderTransparency( picoShader_t *shader );
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float PicoGetShaderShininess( picoShader_t *shader );
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void *PicoGetSurfaceData( picoSurface_t *surface );
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char *PicoGetSurfaceName( picoSurface_t *surface ); /* sea */
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picoSurfaceType_t PicoGetSurfaceType( picoSurface_t *surface );
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char *PicoGetSurfaceName( picoSurface_t *surface );
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picoShader_t *PicoGetSurfaceShader( picoSurface_t *surface ); /* sea */
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int PicoGetSurfaceNumVertexes( picoSurface_t *surface );
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picoVec_t *PicoGetSurfaceXYZ( picoSurface_t *surface, int num );
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picoVec_t *PicoGetSurfaceNormal( picoSurface_t *surface, int num );
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picoVec_t *PicoGetSurfaceST( picoSurface_t *surface, int array, int num );
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picoByte_t *PicoGetSurfaceColor( picoSurface_t *surface, int array, int num );
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int PicoGetSurfaceNumIndexes( picoSurface_t *surface );
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picoIndex_t PicoGetSurfaceIndex( picoSurface_t *surface, int num );
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picoIndex_t *PicoGetSurfaceIndexes( picoSurface_t *surface, int num );
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picoVec_t *PicoGetFaceNormal( picoSurface_t *surface, int num );
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int PicoGetSurfaceSpecial( picoSurface_t *surface, int num );
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/* hashtable related functions */
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typedef struct picoVertexCombinationData_s
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{
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picoVec3_t xyz, normal;
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picoVec2_t st;
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picoColor_t color;
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} picoVertexCombinationData_t;
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typedef struct picoVertexCombinationHash_s
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{
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picoVertexCombinationData_t vcd;
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picoIndex_t index;
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void *data;
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struct picoVertexCombinationHash_s *next;
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} picoVertexCombinationHash_t;
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int PicoGetHashTableSize( void );
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unsigned int PicoVertexCoordGenerateHash( picoVec3_t xyz );
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picoVertexCombinationHash_t **PicoNewVertexCombinationHashTable( void );
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void PicoFreeVertexCombinationHashTable( picoVertexCombinationHash_t **hashTable );
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picoVertexCombinationHash_t *PicoFindVertexCombinationInHashTable( picoVertexCombinationHash_t **hashTable, picoVec3_t xyz, picoVec3_t normal, picoVec3_t st, picoColor_t color );
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picoVertexCombinationHash_t *PicoAddVertexCombinationToHashTable( picoVertexCombinationHash_t **hashTable, picoVec3_t xyz, picoVec3_t normal, picoVec3_t st, picoColor_t color, picoIndex_t index );
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/* specialized functions */
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int PicoFindSurfaceVertexNum( picoSurface_t *surface, picoVec3_t xyz, picoVec3_t normal, int numSTs, picoVec2_t *st, int numColors, picoColor_t *color, picoIndex_t smoothingGroup );
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void PicoFixSurfaceNormals( picoSurface_t *surface );
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int PicoRemapModel( picoModel_t *model, char *remapFile );
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void PicoAddTriangleToModel( picoModel_t *model, picoVec3_t** xyz, picoVec3_t** normals, int numSTs, picoVec2_t **st, int numColors, picoColor_t **colors, picoShader_t* shader, const char *name, picoIndex_t* smoothingGroup );
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/* end marker */
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#ifdef __cplusplus
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}
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#endif
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#endif
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