From 4040510eb66ab137c4c98769251bc6aae7f8af24 Mon Sep 17 00:00:00 2001 From: Thomas Debesse Date: Thu, 1 Feb 2018 21:52:09 +0100 Subject: [PATCH] plugins/iqmmodel: apply textures on surfaces --- plugins/iqmmodel/iqm.cpp | 158 +++++++++++++++++++++++++++------------ 1 file changed, 111 insertions(+), 47 deletions(-) diff --git a/plugins/iqmmodel/iqm.cpp b/plugins/iqmmodel/iqm.cpp index fc862591..355993d9 100644 --- a/plugins/iqmmodel/iqm.cpp +++ b/plugins/iqmmodel/iqm.cpp @@ -138,6 +138,26 @@ void istream_read_iqmHeader( PointerInputStream &inputStream, iqmHeader_t &heade #undef READINT } +typedef struct iqmmesh_s { + unsigned int name; + unsigned int material; + unsigned int first_vertex; + unsigned int num_vertexes; + unsigned int first_triangle; + unsigned int num_triangles; +} iqmmesh_t; + +void istream_read_iqmMesh( PointerInputStream &inputStream, iqmmesh_t &iqmmesh ){ +#define READUINT( x ) iqmmesh.x = istream_read_uint32_le( inputStream ); + READUINT( name ) + READUINT( material ) + READUINT( first_vertex ) + READUINT( num_vertexes ) + READUINT( first_triangle ) + READUINT( num_triangles ) +#undef READUINT +} + typedef struct iqmvertexarray_s { unsigned int type; unsigned int flags; @@ -146,8 +166,8 @@ typedef struct iqmvertexarray_s { unsigned int offset; } iqmvertexarray_t; -void istream_read_iqmVertexarray( PointerInputStream &inputStream, iqmvertexarray_t &out ){ -#define READINT( x ) out.x = istream_read_int32_le( inputStream ); +void istream_read_iqmVertexarray( PointerInputStream &inputStream, iqmvertexarray_t &vertexarray ){ +#define READINT( x ) vertexarray.x = istream_read_int32_le( inputStream ); READINT( type ) READINT( flags ) READINT( format ) @@ -156,6 +176,15 @@ void istream_read_iqmVertexarray( PointerInputStream &inputStream, iqmvertexarra #undef READINT } +typedef struct iqmvertex_s { + float position[3]; + float texcoord[2]; + float normal[3]; + float tangent[4]; + unsigned char blendindices[4]; + unsigned char blendweights[4]; + unsigned char color[4]; +} iqmvertex_t; ArbitraryMeshVertex IQMVertex_construct( const iqmPos_t *pos, const iqmPos_t *norm, const iqmSt_t *st ){ return ArbitraryMeshVertex( @@ -166,65 +195,101 @@ ArbitraryMeshVertex IQMVertex_construct( const iqmPos_t *pos, const iqmPos_t *no } void IQMSurface_read( Model &model, const byte *buffer, ArchiveFile &file ){ - Surface &surface = model.newSurface(); iqmHeader_t header; { PointerInputStream inputStream( buffer ); istream_read_iqmHeader( inputStream, header ); } - { + printf( "num meshes: %d\n", header.num_meshes ); - UniqueVertexBuffer inserter( surface.vertices() ); - inserter.reserve( header.num_vertexes ); - - int ofs_position = -1, ofs_st = -1, ofs_normal = -1; - PointerInputStream vaStream( buffer + header.ofs_vertexarrays ); - for ( unsigned int i = 0; i < header.num_vertexarrays; i++ ) { - iqmvertexarray_t va; - istream_read_iqmVertexarray( vaStream, va ); - - switch ( va.type ) { - case IQM_POSITION: - if ( va.format == IQM_FLOAT && va.size == 3 ) { - ofs_position = va.offset; - } - break; - case IQM_TEXCOORD: - if ( va.format == IQM_FLOAT && va.size == 2 ) { - ofs_st = va.offset; - } - break; - case IQM_NORMAL: - if ( va.format == IQM_FLOAT && va.size == 3 ) { - ofs_normal = va.offset; - } - break; + int ofs_position = -1, ofs_st = -1, ofs_normal = -1; + PointerInputStream vaStream( buffer + header.ofs_vertexarrays ); + for ( unsigned int i = 0; i < header.num_vertexarrays; i++ ) { + iqmvertexarray_t va; + istream_read_iqmVertexarray( vaStream, va ); + + switch ( va.type ) { + case IQM_POSITION: + if ( va.format == IQM_FLOAT && va.size == 3 ) { + ofs_position = va.offset; + } + break; + case IQM_TEXCOORD: + if ( va.format == IQM_FLOAT && va.size == 2 ) { + ofs_st = va.offset; } + break; + case IQM_NORMAL: + if ( va.format == IQM_FLOAT && va.size == 3 ) { + ofs_normal = va.offset; + } + break; } + } + + PointerInputStream posStream( buffer + ofs_position ); + Array iqmPos( header.num_vertexes ); + for ( Array::iterator i = iqmPos.begin(); i != iqmPos.end(); ++i ) { + istream_read_iqmPos( posStream, *i ); + } + + PointerInputStream normStream( buffer + ofs_normal ); + Array iqmNorm( header.num_vertexes ); + for ( Array::iterator i = iqmNorm.begin(); i != iqmNorm.end(); ++i ) { + istream_read_iqmPos( normStream, *i ); + } - surface.indices().reserve( header.num_vertexes ); + Array iqmSt( header.num_vertexes ); + PointerInputStream stStream( buffer + ofs_st ); + for ( Array::iterator i = iqmSt.begin(); i != iqmSt.end(); ++i ) { + istream_read_iqmSt( stStream, *i ); + } + + PointerInputStream iqmMesh( buffer + header.ofs_meshes ); + for ( unsigned int m = 0; m < header.num_meshes; m++ ) { + Surface &surface = model.newSurface(); + + iqmmesh_t iqmmesh; + istream_read_iqmMesh( iqmMesh, iqmmesh ); - PointerInputStream posStream( buffer + ofs_position ); - Array iqmPos( header.num_vertexes ); - for ( Array::iterator i = iqmPos.begin(); i != iqmPos.end(); ++i ) { - istream_read_iqmPos( posStream, *i ); + // if not malformed data neither missing string + if ( iqmmesh.name <= header.num_text && iqmmesh.name > 0 ) { + char *name; + name = (char*) buffer + header.ofs_text + iqmmesh.name; + printf( "mesh: %d, name: %s\n", m, name ); } - PointerInputStream normStream( buffer + ofs_normal ); - Array iqmNorm( header.num_vertexes ); - for ( Array::iterator i = iqmNorm.begin(); i != iqmNorm.end(); ++i ) { - istream_read_iqmPos( normStream, *i ); + bool material_found = false; + // if not malformed data neither missing string + if ( iqmmesh.material <= header.num_text && iqmmesh.material > 0 ) { + char *material; + material = (char*) buffer + header.ofs_text + iqmmesh.material; + + printf( "mesh: %d, texture: %s\n", m, material ); + + if ( material[0] != '\0' ) { + surface.setShader( material ); + material_found = true; + } } - Array iqmSt( header.num_vertexes ); - PointerInputStream stStream( buffer + ofs_st ); - for ( Array::iterator i = iqmSt.begin(); i != iqmSt.end(); ++i ) { - istream_read_iqmSt( stStream, *i ); + if ( !material_found ) { + // empty string will trigger "textures/shader/notex" on display + surface.setShader( "" ); } - PointerInputStream triangleStream( buffer + header.ofs_triangles ); - for ( unsigned int i = 0; i < header.num_triangles; ++i ) { + printf( "mesh: %d, num vertexes: %d\n", m, iqmmesh.num_vertexes ); + printf( "mesh: %d, num triangles: %d\n", m, iqmmesh.num_triangles ); + + UniqueVertexBuffer inserter( surface.vertices() ); + inserter.reserve( iqmmesh.num_vertexes ); + + surface.indices().reserve( iqmmesh.num_vertexes ); + + unsigned int triangle_offset = header.ofs_triangles + iqmmesh.first_triangle * sizeof( iqmTriangle_t ); + PointerInputStream triangleStream( buffer + triangle_offset ); + for ( unsigned int i = 0; i < iqmmesh.num_triangles; ++i ) { iqmTriangle_t triangle; istream_read_iqmTriangle( triangleStream, triangle ); for ( int j = 0; j < 3; j++ ) { @@ -234,10 +299,9 @@ void IQMSurface_read( Model &model, const byte *buffer, ArchiveFile &file ){ &iqmSt[triangle.indices[j]] ) ) ); } } - } - surface.setShader( "" ); - surface.updateAABB(); + surface.updateAABB(); + } } void IQMModel_read( Model &model, const byte *buffer, ArchiveFile &file ){ -- 2.39.2