+++ /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 PM_MD3_C
-
-
-
-/* dependencies */
-#include "picointernal.h"
-
-
-
-/* md3 model format */
-#define MD3_MAGIC "IDP3"
-#define MD3_VERSION 15
-
-/* md3 vertex scale */
-#define MD3_SCALE (1.0f / 64.0f)
-
-/* md3 model frame information */
-typedef struct md3Frame_s
-{
- float bounds[ 2 ][ 3 ];
- float localOrigin[ 3 ];
- float radius;
- char creator[ 16 ];
-}
-md3Frame_t;
-
-/* md3 model tag information */
-typedef struct md3Tag_s
-{
- char name[ 64 ];
- float origin[ 3 ];
- float axis[ 3 ][ 3 ];
-}
-md3Tag_t;
-
-/* md3 surface md3 (one object mesh) */
-typedef struct md3Surface_s
-{
- char magic[ 4 ];
- char name[ 64 ]; /* polyset name */
- int flags;
- int numFrames; /* all model surfaces should have the same */
- int numShaders; /* all model surfaces should have the same */
- int numVerts;
- int numTriangles;
- int ofsTriangles;
- int ofsShaders; /* offset from start of md3Surface_t */
- int ofsSt; /* texture coords are common for all frames */
- int ofsVertexes; /* numVerts * numFrames */
- int ofsEnd; /* next surface follows */
-}
-md3Surface_t;
-
-typedef struct md3Shader_s
-{
- char name[ 64 ];
- int shaderIndex; /* for ingame use */
-}
-md3Shader_t;
-
-typedef struct md3Triangle_s
-{
- int indexes[ 3 ];
-}
-md3Triangle_t;
-
-typedef struct md3TexCoord_s
-{
- float st[ 2 ];
-}
-md3TexCoord_t;
-
-typedef struct md3Vertex_s
-{
- short xyz[ 3 ];
- short normal;
-}
-md3Vertex_t;
-
-
-/* md3 model file md3 structure */
-typedef struct md3_s
-{
- char magic[ 4 ]; /* MD3_MAGIC */
- int version;
- char name[ 64 ]; /* model name */
- int flags;
- int numFrames;
- int numTags;
- int numSurfaces;
- int numSkins; /* number of skins for the mesh */
- int ofsFrames; /* offset for first frame */
- int ofsTags; /* numFrames * numTags */
- int ofsSurfaces; /* first surface, others follow */
- int ofsEnd; /* end of file */
-}
-md3_t;
-
-
-
-
-/*
-_md3_canload()
-validates a quake3 arena md3 model file. btw, i use the
-preceding underscore cause it's a static func referenced
-by one structure only.
-*/
-
-static int _md3_canload( PM_PARAMS_CANLOAD )
-{
- const md3_t *md3;
-
-
- /* sanity check */
- if( (size_t) bufSize < ( sizeof( *md3 ) * 2) )
- return PICO_PMV_ERROR_SIZE;
-
- /* set as md3 */
- md3 = (const md3_t*) buffer;
-
- /* check md3 magic */
- if( *((const int*) md3->magic) != *((const int*) MD3_MAGIC) )
- return PICO_PMV_ERROR_IDENT;
-
- /* check md3 version */
- if( _pico_little_long( md3->version ) != MD3_VERSION )
- return PICO_PMV_ERROR_VERSION;
-
- /* file seems to be a valid md3 */
- return PICO_PMV_OK;
-}
-
-
-
-/*
-_md3_load()
-loads a quake3 arena md3 model file.
-*/
-
-static picoModel_t *_md3_load( PM_PARAMS_LOAD )
-{
- int i, j;
- picoByte_t *bb, *bb0;
- md3_t *md3;
- md3Surface_t *surface;
- md3Shader_t *shader;
- md3TexCoord_t *texCoord;
- md3Frame_t *frame;
- md3Triangle_t *triangle;
- md3Vertex_t *vertex;
- double lat, lng;
-
- picoModel_t *picoModel;
- picoSurface_t *picoSurface;
- picoShader_t *picoShader;
- picoVec3_t xyz, normal;
- picoVec2_t st;
- picoColor_t color;
-
-
- /* -------------------------------------------------
- md3 loading
- ------------------------------------------------- */
-
-
- /* set as md3 */
- bb0 = bb = (picoByte_t*) _pico_alloc(bufSize);
- memcpy(bb, buffer, bufSize);
- md3 = (md3_t*) bb;
-
- /* check ident and version */
- if( *((int*) md3->magic) != *((int*) MD3_MAGIC) || _pico_little_long( md3->version ) != MD3_VERSION )
- {
- /* not an md3 file (todo: set error) */
- _pico_free(bb0);
- return NULL;
- }
-
- /* swap md3; sea: swaps fixed */
- md3->version = _pico_little_long( md3->version );
- md3->numFrames = _pico_little_long( md3->numFrames );
- md3->numTags = _pico_little_long( md3->numTags );
- md3->numSurfaces = _pico_little_long( md3->numSurfaces );
- md3->numSkins = _pico_little_long( md3->numSkins );
- md3->ofsFrames = _pico_little_long( md3->ofsFrames );
- md3->ofsTags = _pico_little_long( md3->ofsTags );
- md3->ofsSurfaces = _pico_little_long( md3->ofsSurfaces );
- md3->ofsEnd = _pico_little_long( md3->ofsEnd );
-
- /* do frame check */
- if( md3->numFrames < 1 )
- {
- _pico_printf( PICO_ERROR, "MD3 with 0 frames" );
- _pico_free(bb0);
- return NULL;
- }
-
- if( frameNum < 0 || frameNum >= md3->numFrames )
- {
- _pico_printf( PICO_ERROR, "Invalid or out-of-range MD3 frame specified" );
- _pico_free(bb0);
- return NULL;
- }
-
- /* swap frames */
- frame = (md3Frame_t*) (bb + md3->ofsFrames );
- for( i = 0; i < md3->numFrames; i++, frame++ )
- {
- frame->radius = _pico_little_float( frame->radius );
- for( j = 0; j < 3; j++ )
- {
- frame->bounds[ 0 ][ j ] = _pico_little_float( frame->bounds[ 0 ][ j ] );
- frame->bounds[ 1 ][ j ] = _pico_little_float( frame->bounds[ 1 ][ j ] );
- frame->localOrigin[ j ] = _pico_little_float( frame->localOrigin[ j ] );
- }
- }
-
- /* swap surfaces */
- surface = (md3Surface_t*) (bb + md3->ofsSurfaces);
- for( i = 0; i < md3->numSurfaces; i++ )
- {
- /* swap surface md3; sea: swaps fixed */
- surface->flags = _pico_little_long( surface->flags );
- surface->numFrames = _pico_little_long( surface->numFrames );
- surface->numShaders = _pico_little_long( surface->numShaders );
- surface->numTriangles = _pico_little_long( surface->numTriangles );
- surface->ofsTriangles = _pico_little_long( surface->ofsTriangles );
- surface->numVerts = _pico_little_long( surface->numVerts );
- surface->ofsShaders = _pico_little_long( surface->ofsShaders );
- surface->ofsSt = _pico_little_long( surface->ofsSt );
- surface->ofsVertexes = _pico_little_long( surface->ofsVertexes );
- surface->ofsEnd = _pico_little_long( surface->ofsEnd );
-
- /* swap triangles */
- triangle = (md3Triangle_t*) ((picoByte_t*) surface + surface->ofsTriangles);
- for( j = 0; j < surface->numTriangles; j++, triangle++ )
- {
- /* sea: swaps fixed */
- triangle->indexes[ 0 ] = _pico_little_long( triangle->indexes[ 0 ] );
- triangle->indexes[ 1 ] = _pico_little_long( triangle->indexes[ 1 ] );
- triangle->indexes[ 2 ] = _pico_little_long( triangle->indexes[ 2 ] );
- }
-
- /* swap st coords */
- texCoord = (md3TexCoord_t*) ((picoByte_t*) surface + surface->ofsSt);
- for( j = 0; j < surface->numVerts; j++, texCoord++ )
- {
- texCoord->st[ 0 ] = _pico_little_float( texCoord->st[ 0 ] );
- texCoord->st[ 1 ] = _pico_little_float( texCoord->st[ 1 ] );
- }
-
- /* swap xyz/normals */
- vertex = (md3Vertex_t*) ((picoByte_t*) surface + surface->ofsVertexes);
- for( j = 0; j < (surface->numVerts * surface->numFrames); j++, vertex++)
- {
- vertex->xyz[ 0 ] = _pico_little_short( vertex->xyz[ 0 ] );
- vertex->xyz[ 1 ] = _pico_little_short( vertex->xyz[ 1 ] );
- vertex->xyz[ 2 ] = _pico_little_short( vertex->xyz[ 2 ] );
- vertex->normal = _pico_little_short( vertex->normal );
- }
-
- /* get next surface */
- surface = (md3Surface_t*) ((picoByte_t*) surface + surface->ofsEnd);
- }
-
- /* -------------------------------------------------
- pico model creation
- ------------------------------------------------- */
-
- /* create new pico model */
- picoModel = PicoNewModel();
- if( picoModel == NULL )
- {
- _pico_printf( PICO_ERROR, "Unable to allocate a new model" );
- _pico_free(bb0);
- return NULL;
- }
-
- /* do model setup */
- PicoSetModelFrameNum( picoModel, frameNum );
- PicoSetModelNumFrames( picoModel, md3->numFrames ); /* sea */
- PicoSetModelName( picoModel, fileName );
- PicoSetModelFileName( picoModel, fileName );
-
- /* md3 surfaces become picomodel surfaces */
- surface = (md3Surface_t*) (bb + md3->ofsSurfaces);
-
- /* run through md3 surfaces */
- for( i = 0; i < md3->numSurfaces; i++ )
- {
- /* allocate new pico surface */
- picoSurface = PicoNewSurface( picoModel );
- if( picoSurface == NULL )
- {
- _pico_printf( PICO_ERROR, "Unable to allocate a new model surface" );
- PicoFreeModel( picoModel ); /* sea */
- _pico_free(bb0);
- return NULL;
- }
-
- /* md3 model surfaces are all triangle meshes */
- PicoSetSurfaceType( picoSurface, PICO_TRIANGLES );
-
- /* set surface name */
- PicoSetSurfaceName( picoSurface, surface->name );
-
- /* create new pico shader -sea */
- picoShader = PicoNewShader( picoModel );
- if( picoShader == NULL )
- {
- _pico_printf( PICO_ERROR, "Unable to allocate a new model shader" );
- PicoFreeModel( picoModel );
- _pico_free(bb0);
- return NULL;
- }
-
- /* detox and set shader name */
- shader = (md3Shader_t*) ((picoByte_t*) surface + surface->ofsShaders);
- _pico_setfext( shader->name, "" );
- _pico_unixify( shader->name );
- PicoSetShaderName( picoShader, shader->name );
-
- /* associate current surface with newly created shader */
- PicoSetSurfaceShader( picoSurface, picoShader );
-
- /* copy indexes */
- triangle = (md3Triangle_t *) ((picoByte_t*) surface + surface->ofsTriangles);
-
- for( j = 0; j < surface->numTriangles; j++, triangle++ )
- {
- PicoSetSurfaceIndex( picoSurface, (j * 3 + 0), (picoIndex_t) triangle->indexes[ 0 ] );
- PicoSetSurfaceIndex( picoSurface, (j * 3 + 1), (picoIndex_t) triangle->indexes[ 1 ] );
- PicoSetSurfaceIndex( picoSurface, (j * 3 + 2), (picoIndex_t) triangle->indexes[ 2 ] );
- }
-
- /* copy vertexes */
- texCoord = (md3TexCoord_t*) ((picoByte_t *) surface + surface->ofsSt);
- vertex = (md3Vertex_t*) ((picoByte_t*) surface + surface->ofsVertexes + surface->numVerts * frameNum * sizeof( md3Vertex_t ) );
- _pico_set_color( color, 255, 255, 255, 255 );
-
- for( j = 0; j < surface->numVerts; j++, texCoord++, vertex++ )
- {
- /* set vertex origin */
- xyz[ 0 ] = MD3_SCALE * vertex->xyz[ 0 ];
- xyz[ 1 ] = MD3_SCALE * vertex->xyz[ 1 ];
- xyz[ 2 ] = MD3_SCALE * vertex->xyz[ 2 ];
- PicoSetSurfaceXYZ( picoSurface, j, xyz );
-
- /* decode lat/lng normal to 3 float normal */
- lat = (float) ((vertex->normal >> 8) & 0xff);
- lng = (float) (vertex->normal & 0xff);
- lat *= PICO_PI / 128;
- lng *= PICO_PI / 128;
- normal[ 0 ] = (picoVec_t) cos( lat ) * (picoVec_t) sin( lng );
- normal[ 1 ] = (picoVec_t) sin( lat ) * (picoVec_t) sin( lng );
- normal[ 2 ] = (picoVec_t) cos( lng );
- PicoSetSurfaceNormal( picoSurface, j, normal );
-
- /* set st coords */
- st[ 0 ] = texCoord->st[ 0 ];
- st[ 1 ] = texCoord->st[ 1 ];
- PicoSetSurfaceST( picoSurface, 0, j, st );
-
- /* set color */
- PicoSetSurfaceColor( picoSurface, 0, j, color );
- }
-
- /* get next surface */
- surface = (md3Surface_t*) ((picoByte_t*) surface + surface->ofsEnd);
- }
-
- /* return the new pico model */
- _pico_free(bb0);
- return picoModel;
-}
-
-
-
-/* pico file format module definition */
-const picoModule_t picoModuleMD3 =
-{
- "1.3", /* module version string */
- "Quake 3 Arena", /* module display name */
- "Randy Reddig", /* author's name */
- "2002 Randy Reddig", /* module copyright */
- {
- "md3", NULL, NULL, NULL /* default extensions to use */
- },
- _md3_canload, /* validation routine */
- _md3_load, /* load routine */
- NULL, /* save validation routine */
- NULL /* save routine */
-};
projects / voretournament / voretournament.git / blobdiff