-/* -----------------------------------------------------------------------------\r
-\r
-PicoModel Library \r
-\r
-Copyright (c) 2002, Randy Reddig & seaw0lf\r
-All rights reserved.\r
-\r
-Redistribution and use in source and binary forms, with or without modification,\r
-are permitted provided that the following conditions are met:\r
-\r
-Redistributions of source code must retain the above copyright notice, this list\r
-of conditions and the following disclaimer.\r
-\r
-Redistributions in binary form must reproduce the above copyright notice, this\r
-list of conditions and the following disclaimer in the documentation and/or\r
-other materials provided with the distribution.\r
-\r
-Neither the names of the copyright holders nor the names of its contributors may\r
-be used to endorse or promote products derived from this software without\r
-specific prior written permission. \r
-\r
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND\r
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR\r
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\r
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS\r
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
-\r
------------------------------------------------------------------------------ */\r
-\r
-\r
-\r
-/* marker */\r
-#define PM_MD3_C\r
-\r
-\r
-\r
-/* dependencies */\r
-#include "picointernal.h"\r
-\r
-\r
-\r
-/* md3 model format */\r
-#define MD3_MAGIC "IDP3"\r
-#define MD3_VERSION 15\r
-\r
-/* md3 vertex scale */\r
-#define MD3_SCALE (1.0f / 64.0f)\r
-\r
-/* md3 model frame information */\r
-typedef struct md3Frame_s\r
-{\r
- float bounds[ 2 ][ 3 ];\r
- float localOrigin[ 3 ];\r
- float radius;\r
- char creator[ 16 ];\r
-}\r
-md3Frame_t;\r
-\r
-/* md3 model tag information */\r
-typedef struct md3Tag_s\r
-{\r
- char name[ 64 ];\r
- float origin[ 3 ];\r
- float axis[ 3 ][ 3 ];\r
-}\r
-md3Tag_t;\r
-\r
-/* md3 surface md3 (one object mesh) */\r
-typedef struct md3Surface_s\r
-{\r
- char magic[ 4 ];\r
- char name[ 64 ]; /* polyset name */\r
- int flags;\r
- int numFrames; /* all model surfaces should have the same */\r
- int numShaders; /* all model surfaces should have the same */\r
- int numVerts;\r
- int numTriangles;\r
- int ofsTriangles;\r
- int ofsShaders; /* offset from start of md3Surface_t */\r
- int ofsSt; /* texture coords are common for all frames */\r
- int ofsVertexes; /* numVerts * numFrames */\r
- int ofsEnd; /* next surface follows */\r
-}\r
-md3Surface_t;\r
-\r
-typedef struct md3Shader_s\r
-{\r
- char name[ 64 ];\r
- int shaderIndex; /* for ingame use */\r
-}\r
-md3Shader_t;\r
-\r
-typedef struct md3Triangle_s\r
-{\r
- int indexes[ 3 ];\r
-}\r
-md3Triangle_t;\r
-\r
-typedef struct md3TexCoord_s\r
-{\r
- float st[ 2 ];\r
-}\r
-md3TexCoord_t;\r
-\r
-typedef struct md3Vertex_s\r
-{\r
- short xyz[ 3 ];\r
- short normal;\r
-}\r
-md3Vertex_t;\r
-\r
-\r
-/* md3 model file md3 structure */\r
-typedef struct md3_s\r
-{\r
- char magic[ 4 ]; /* MD3_MAGIC */\r
- int version;\r
- char name[ 64 ]; /* model name */\r
- int flags;\r
- int numFrames;\r
- int numTags;\r
- int numSurfaces;\r
- int numSkins; /* number of skins for the mesh */\r
- int ofsFrames; /* offset for first frame */\r
- int ofsTags; /* numFrames * numTags */\r
- int ofsSurfaces; /* first surface, others follow */\r
- int ofsEnd; /* end of file */\r
-}\r
-md3_t;\r
-\r
-\r
-\r
-\r
-/*\r
-_md3_canload()\r
-validates a quake3 arena md3 model file. btw, i use the\r
-preceding underscore cause it's a static func referenced\r
-by one structure only.\r
-*/\r
-\r
-static int _md3_canload( PM_PARAMS_CANLOAD )\r
-{\r
- md3_t *md3;\r
- \r
-\r
- /* to keep the compiler happy */\r
- *fileName = *fileName;\r
- \r
- /* sanity check */\r
- if( bufSize < ( sizeof( *md3 ) * 2) )\r
- return PICO_PMV_ERROR_SIZE;\r
- \r
- /* set as md3 */\r
- md3 = (md3_t*) buffer;\r
- \r
- /* check md3 magic */\r
- if( *((int*) md3->magic) != *((int*) MD3_MAGIC) ) \r
- return PICO_PMV_ERROR_IDENT;\r
- \r
- /* check md3 version */\r
- if( _pico_little_long( md3->version ) != MD3_VERSION )\r
- return PICO_PMV_ERROR_VERSION;\r
- \r
- /* file seems to be a valid md3 */\r
- return PICO_PMV_OK;\r
-}\r
-\r
-\r
-\r
-/*\r
-_md3_load()\r
-loads a quake3 arena md3 model file.\r
-*/\r
-\r
-static picoModel_t *_md3_load( PM_PARAMS_LOAD )\r
-{\r
- int i, j;\r
- picoByte_t *bb;\r
- md3_t *md3;\r
- md3Surface_t *surface;\r
- md3Shader_t *shader;\r
- md3TexCoord_t *texCoord;\r
- md3Frame_t *frame;\r
- md3Triangle_t *triangle;\r
- md3Vertex_t *vertex;\r
- double lat, lng;\r
- \r
- picoModel_t *picoModel;\r
- picoSurface_t *picoSurface;\r
- picoShader_t *picoShader;\r
- picoVec3_t xyz, normal;\r
- picoVec2_t st;\r
- picoColor_t color;\r
- \r
- \r
- /* -------------------------------------------------\r
- md3 loading\r
- ------------------------------------------------- */\r
-\r
-\r
- /* set as md3 */\r
- bb = (picoByte_t*) buffer;\r
- md3 = (md3_t*) buffer;\r
- \r
- /* check ident and version */\r
- if( *((int*) md3->magic) != *((int*) MD3_MAGIC) || _pico_little_long( md3->version ) != MD3_VERSION )\r
- {\r
- /* not an md3 file (todo: set error) */\r
- return NULL;\r
- }\r
- \r
- /* swap md3; sea: swaps fixed */\r
- md3->version = _pico_little_long( md3->version );\r
- md3->numFrames = _pico_little_long( md3->numFrames );\r
- md3->numTags = _pico_little_long( md3->numTags );\r
- md3->numSurfaces = _pico_little_long( md3->numSurfaces );\r
- md3->numSkins = _pico_little_long( md3->numSkins );\r
- md3->ofsFrames = _pico_little_long( md3->ofsFrames );\r
- md3->ofsTags = _pico_little_long( md3->ofsTags );\r
- md3->ofsSurfaces = _pico_little_long( md3->ofsSurfaces );\r
- md3->ofsEnd = _pico_little_long( md3->ofsEnd );\r
- \r
- /* do frame check */\r
- if( md3->numFrames < 1 )\r
- {\r
- _pico_printf( PICO_ERROR, "MD3 with 0 frames" );\r
- return NULL;\r
- }\r
- \r
- if( frameNum < 0 || frameNum >= md3->numFrames )\r
- {\r
- _pico_printf( PICO_ERROR, "Invalid or out-of-range MD3 frame specified" );\r
- return NULL;\r
- }\r
- \r
- /* swap frames */\r
- frame = (md3Frame_t*) (bb + md3->ofsFrames );\r
- for( i = 0; i < md3->numFrames; i++, frame++ )\r
- {\r
- frame->radius = _pico_little_float( frame->radius );\r
- for( j = 0; j < 3; j++ )\r
- {\r
- frame->bounds[ 0 ][ j ] = _pico_little_float( frame->bounds[ 0 ][ j ] );\r
- frame->bounds[ 1 ][ j ] = _pico_little_float( frame->bounds[ 1 ][ j ] );\r
- frame->localOrigin[ j ] = _pico_little_float( frame->localOrigin[ j ] );\r
- }\r
- }\r
- \r
- /* swap surfaces */\r
- surface = (md3Surface_t*) (bb + md3->ofsSurfaces);\r
- for( i = 0; i < md3->numSurfaces; i++ )\r
- {\r
- /* swap surface md3; sea: swaps fixed */\r
- surface->flags = _pico_little_long( surface->flags );\r
- surface->numFrames = _pico_little_long( surface->numFrames );\r
- surface->numShaders = _pico_little_long( surface->numShaders );\r
- surface->numTriangles = _pico_little_long( surface->numTriangles );\r
- surface->ofsTriangles = _pico_little_long( surface->ofsTriangles );\r
- surface->numVerts = _pico_little_long( surface->numVerts );\r
- surface->ofsShaders = _pico_little_long( surface->ofsShaders );\r
- surface->ofsSt = _pico_little_long( surface->ofsSt );\r
- surface->ofsVertexes = _pico_little_long( surface->ofsVertexes );\r
- surface->ofsEnd = _pico_little_long( surface->ofsEnd );\r
- \r
- /* swap triangles */\r
- triangle = (md3Triangle_t*) ((picoByte_t*) surface + surface->ofsTriangles);\r
- for( j = 0; j < surface->numTriangles; j++, triangle++ )\r
- {\r
- /* sea: swaps fixed */\r
- triangle->indexes[ 0 ] = _pico_little_long( triangle->indexes[ 0 ] );\r
- triangle->indexes[ 1 ] = _pico_little_long( triangle->indexes[ 1 ] );\r
- triangle->indexes[ 2 ] = _pico_little_long( triangle->indexes[ 2 ] );\r
- }\r
- \r
- /* swap st coords */\r
- texCoord = (md3TexCoord_t*) ((picoByte_t*) surface + surface->ofsSt);\r
- for( j = 0; j < surface->numVerts; j++, texCoord++ )\r
- {\r
- texCoord->st[ 0 ] = _pico_little_float( texCoord->st[ 0 ] );\r
- texCoord->st[ 1 ] = _pico_little_float( texCoord->st[ 1 ] );\r
- }\r
- \r
- /* swap xyz/normals */\r
- vertex = (md3Vertex_t*) ((picoByte_t*) surface + surface->ofsVertexes);\r
- for( j = 0; j < (surface->numVerts * surface->numFrames); j++, vertex++)\r
- {\r
- vertex->xyz[ 0 ] = _pico_little_short( vertex->xyz[ 0 ] );\r
- vertex->xyz[ 1 ] = _pico_little_short( vertex->xyz[ 1 ] );\r
- vertex->xyz[ 2 ] = _pico_little_short( vertex->xyz[ 2 ] );\r
- vertex->normal = _pico_little_short( vertex->normal );\r
- }\r
- \r
- /* get next surface */\r
- surface = (md3Surface_t*) ((picoByte_t*) surface + surface->ofsEnd);\r
- }\r
- \r
- /* -------------------------------------------------\r
- pico model creation\r
- ------------------------------------------------- */\r
- \r
- /* create new pico model */\r
- picoModel = PicoNewModel();\r
- if( picoModel == NULL )\r
- {\r
- _pico_printf( PICO_ERROR, "Unable to allocate a new model" );\r
- return NULL;\r
- }\r
- \r
- /* do model setup */\r
- PicoSetModelFrameNum( picoModel, frameNum );\r
- PicoSetModelNumFrames( picoModel, md3->numFrames ); /* sea */\r
- PicoSetModelName( picoModel, fileName );\r
- PicoSetModelFileName( picoModel, fileName );\r
- \r
- /* md3 surfaces become picomodel surfaces */\r
- surface = (md3Surface_t*) (bb + md3->ofsSurfaces);\r
- \r
- /* run through md3 surfaces */\r
- for( i = 0; i < md3->numSurfaces; i++ )\r
- {\r
- /* allocate new pico surface */\r
- picoSurface = PicoNewSurface( picoModel );\r
- if( picoSurface == NULL )\r
- {\r
- _pico_printf( PICO_ERROR, "Unable to allocate a new model surface" );\r
- PicoFreeModel( picoModel ); /* sea */\r
- return NULL;\r
- }\r
- \r
- /* md3 model surfaces are all triangle meshes */\r
- PicoSetSurfaceType( picoSurface, PICO_TRIANGLES );\r
- \r
- /* set surface name */\r
- PicoSetSurfaceName( picoSurface, surface->name );\r
- \r
- /* create new pico shader -sea */\r
- picoShader = PicoNewShader( picoModel );\r
- if( picoShader == NULL )\r
- {\r
- _pico_printf( PICO_ERROR, "Unable to allocate a new model shader" );\r
- PicoFreeModel( picoModel );\r
- return NULL;\r
- }\r
- \r
- /* detox and set shader name */\r
- shader = (md3Shader_t*) ((picoByte_t*) surface + surface->ofsShaders);\r
- _pico_setfext( shader->name, "" );\r
- _pico_unixify( shader->name );\r
- PicoSetShaderName( picoShader, shader->name );\r
- \r
- /* associate current surface with newly created shader */\r
- PicoSetSurfaceShader( picoSurface, picoShader );\r
- \r
- /* copy indexes */\r
- triangle = (md3Triangle_t *) ((picoByte_t*) surface + surface->ofsTriangles);\r
- \r
- for( j = 0; j < surface->numTriangles; j++, triangle++ )\r
- {\r
- PicoSetSurfaceIndex( picoSurface, (j * 3 + 0), (picoIndex_t) triangle->indexes[ 0 ] );\r
- PicoSetSurfaceIndex( picoSurface, (j * 3 + 1), (picoIndex_t) triangle->indexes[ 1 ] );\r
- PicoSetSurfaceIndex( picoSurface, (j * 3 + 2), (picoIndex_t) triangle->indexes[ 2 ] );\r
- }\r
- \r
- /* copy vertexes */\r
- texCoord = (md3TexCoord_t*) ((picoByte_t *) surface + surface->ofsSt);\r
- vertex = (md3Vertex_t*) ((picoByte_t*) surface + surface->ofsVertexes + surface->numVerts * frameNum * sizeof( md3Vertex_t ) );\r
- _pico_set_color( color, 255, 255, 255, 255 );\r
- \r
- for( j = 0; j < surface->numVerts; j++, texCoord++, vertex++ )\r
- {\r
- /* set vertex origin */\r
- xyz[ 0 ] = MD3_SCALE * vertex->xyz[ 0 ];\r
- xyz[ 1 ] = MD3_SCALE * vertex->xyz[ 1 ];\r
- xyz[ 2 ] = MD3_SCALE * vertex->xyz[ 2 ];\r
- PicoSetSurfaceXYZ( picoSurface, j, xyz );\r
- \r
- /* decode lat/lng normal to 3 float normal */\r
- lat = (float) ((vertex->normal >> 8) & 0xff);\r
- lng = (float) (vertex->normal & 0xff);\r
- lat *= PICO_PI / 128;\r
- lng *= PICO_PI / 128;\r
- normal[ 0 ] = (picoVec_t) cos( lat ) * (picoVec_t) sin( lng );\r
- normal[ 1 ] = (picoVec_t) sin( lat ) * (picoVec_t) sin( lng );\r
- normal[ 2 ] = (picoVec_t) cos( lng );\r
- PicoSetSurfaceNormal( picoSurface, j, normal );\r
- \r
- /* set st coords */\r
- st[ 0 ] = texCoord->st[ 0 ];\r
- st[ 1 ] = texCoord->st[ 1 ];\r
- PicoSetSurfaceST( picoSurface, 0, j, st );\r
-\r
- /* set color */\r
- PicoSetSurfaceColor( picoSurface, 0, j, color );\r
- }\r
- \r
- /* get next surface */\r
- surface = (md3Surface_t*) ((picoByte_t*) surface + surface->ofsEnd);\r
- }\r
- \r
- /* return the new pico model */\r
- return picoModel;\r
-}\r
-\r
-\r
-\r
-/* pico file format module definition */\r
-const picoModule_t picoModuleMD3 =\r
-{\r
- "1.3", /* module version string */\r
- "Quake 3 Arena", /* module display name */\r
- "Randy Reddig", /* author's name */\r
- "2002 Randy Reddig", /* module copyright */\r
- {\r
- "md3", NULL, NULL, NULL /* default extensions to use */\r
- },\r
- _md3_canload, /* validation routine */\r
- _md3_load, /* load routine */\r
- NULL, /* save validation routine */\r
- NULL /* save routine */\r
-};\r
+/* -----------------------------------------------------------------------------
+
+PicoModel Library
+
+Copyright (c) 2002, Randy Reddig & seaw0lf
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice, this list
+of conditions and the following disclaimer.
+
+Redistributions in binary form must reproduce the above copyright notice, this
+list of conditions and the following disclaimer in the documentation and/or
+other materials provided with the distribution.
+
+Neither the names of the copyright holders nor the names of its contributors may
+be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------------- */
+
+
+
+/* marker */
+#define 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 )
+{
+ md3_t *md3;
+
+
+ /* to keep the compiler happy */
+ *fileName = *fileName;
+
+ /* sanity check */
+ if( bufSize < ( sizeof( *md3 ) * 2) )
+ return PICO_PMV_ERROR_SIZE;
+
+ /* set as md3 */
+ md3 = (md3_t*) buffer;
+
+ /* check md3 magic */
+ if( *((int*) md3->magic) != *((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;
+ 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 */
+ bb = (picoByte_t*) buffer;
+ md3 = (md3_t*) buffer;
+
+ /* 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) */
+ 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" );
+ return NULL;
+ }
+
+ if( frameNum < 0 || frameNum >= md3->numFrames )
+ {
+ _pico_printf( PICO_ERROR, "Invalid or out-of-range MD3 frame specified" );
+ 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" );
+ 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 */
+ 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 );
+ 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 */
+ 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 / xonotic / netradiant.git / blobdiff