/*
Copyright (C) 1999-2007 id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.
This file is part of GtkRadiant.
GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GtkRadiant is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "cpicosurface.h"
// public
CPicoSurface::CPicoSurface( picoSurface_t *pSurface ){
refCount = 1;
m_pSurface = pSurface;
// PicoFixSurfaceNormals( pSurface );
AccumulateBBox();
m_shader = QERApp_Shader_ForName( GetShaderName() );
// jdolan: If the shader fails to load, try skin.tga in the model's
// directory as a fall-back. This is a hack for malformed models.
if ( m_shader->IsDefault() ) {
Sys_FPrintf( SYS_WRN, "WARNING: Failed to load shader %s for %s\n", m_shader->getName(), m_pSurface->model->name );
gchar *dir = g_path_get_dirname( m_pSurface->model->name );
gchar *skin = g_strdup_printf( "%s/skin.tga", dir );
m_shader->DecRef();
m_shader = QERApp_Shader_ForName( skin );
g_free( skin );
g_free( dir );
}
}
CPicoSurface::~CPicoSurface(){
m_shader->DecRef();
}
void CPicoSurface::Draw( int state, int rflags ){
Draw( state, m_shader, rflags );
}
void CPicoSurface::Draw( int state, IShader *pShader, int rflags ){
int j;
if ( !( rflags & ( DRAW_RF_SEL_OUTLINE | DRAW_RF_SEL_FILL | DRAW_RF_XY ) ) ) {
if ( state & DRAW_GL_TEXTURE_2D ) {
bool bTrans = ( pShader->getFlags() & QER_TRANS ) == QER_TRANS;
bool bDrawBlend = ( state & DRAW_GL_BLEND ) == DRAW_GL_BLEND;
//only draw transparent stuff when in transparent stuff pass and vice versa
if(bTrans != bDrawBlend) {
return;
}
g_QglTable.m_pfn_qglBindTexture( GL_TEXTURE_2D, pShader->getTexture()->texture_number );
if ( ( rflags & DRAW_RF_CAM ) && ( pShader->getFlags() & QER_ALPHAFUNC ) ) {
int nFunc = 0;
float fRef = 0.f;
g_QglTable.m_pfn_qglColor4f( 1.f, 1.f, 1.f, pShader->getTrans() ); // transparency
g_QglTable.m_pfn_qglEnable( GL_ALPHA_TEST );
pShader->getAlphaFunc( &nFunc, &fRef );
g_QglTable.m_pfn_qglAlphaFunc( nFunc, fRef );
}
}
else
{
//g_QglTable.m_pfn_qglColor3fv( pShader->getTexture()->color );
/* g_QglTable.m_pfn_qglEnableClientState(GL_COLOR_ARRAY);*/
}
if ( !( state & DRAW_GL_WIRE ) && ( pShader->getFlags() & QER_CULL ) ) {
if ( pShader->getCull() == 2 ) {
g_QglTable.m_pfn_qglDisable( GL_CULL_FACE );
g_QglTable.m_pfn_qglPolygonMode( GL_FRONT, GL_FILL );
}
else // is 1
{
g_QglTable.m_pfn_qglCullFace( GL_BACK );
}
}
}
switch ( PicoGetSurfaceType( m_pSurface ) )
{
case PICO_TRIANGLES: g_QglTable.m_pfn_qglBegin( GL_TRIANGLES );
for ( j = 0; j < PicoGetSurfaceNumIndexes( m_pSurface ); j++ )
{
g_QglTable.m_pfn_qglNormal3fv( PicoGetSurfaceNormal( m_pSurface,PicoGetSurfaceIndex( m_pSurface,j ) ) );
if ( !( rflags & ( DRAW_RF_SEL_OUTLINE | DRAW_RF_SEL_FILL | DRAW_RF_XY ) ) ) {
if ( state & DRAW_GL_TEXTURE_2D ) {
g_QglTable.m_pfn_qglTexCoord2fv( PicoGetSurfaceST( m_pSurface,0,PicoGetSurfaceIndex( m_pSurface,j ) ) );
}
else {
picoByte_t *vertexColor = PicoGetSurfaceColor( m_pSurface,0,PicoGetSurfaceIndex( m_pSurface,j ) );
//% g_QglTable.m_pfn_qglColor4f( vertexColor[ 0 ] / 255.f,
//% vertexColor[ 1 ] / 255.f,
//% vertexColor[ 2 ] / 255.f,
//% vertexColor[ 3 ] / 255.f );
g_QglTable.m_pfn_qglColor4ubv( vertexColor );
}
}
g_QglTable.m_pfn_qglVertex3fv( PicoGetSurfaceXYZ( m_pSurface, PicoGetSurfaceIndex( m_pSurface, j ) ) );
}
g_QglTable.m_pfn_qglEnd();
/*g_QglTable.m_pfn_qglVertexPointer( 3, GL_FLOAT, 0, PicoGetSurfaceXYZ( m_pSurface, 0 ) );
g_QglTable.m_pfn_qglNormalPointer( GL_FLOAT, 0, PicoGetSurfaceNormal( m_pSurface, 0 ) );
if( !(rflags & (DRAW_RF_SEL_OUTLINE|DRAW_RF_SEL_FILL|DRAW_RF_XY)) ) {
if( state & DRAW_GL_TEXTURE_2D ) {
g_QglTable.m_pfn_qglTexCoordPointer( 2, GL_FLOAT, 0, PicoGetSurfaceST( m_pSurface, 0, 0 ) );
} else {
g_QglTable.m_pfn_qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, PicoGetSurfaceColor( m_pSurface, 0, 0 ) );
}
}
g_QglTable.m_pfn_qglDrawElements( GL_TRIANGLES, PicoGetSurfaceNumIndexes( m_pSurface ), GL_UNSIGNED_INT, PicoGetSurfaceIndexes( m_pSurface, 0 ) );*/
/*g_QglTable.m_pfn_qglColor3f( 0.f, .5f, 1.f );
g_QglTable.m_pfn_qglBegin( GL_LINES );
for( int i = 0; i < PicoGetSurfaceNumIndexes( m_pSurface ); i++ ) {
vec3_t outerpoint;
VectorMA( PicoGetSurfaceXYZ( m_pSurface, PicoGetSurfaceIndex( m_pSurface, i ) ), .3f, PicoGetSurfaceNormal( m_pSurface, PicoGetSurfaceIndex( m_pSurface, i ) ), outerpoint );
g_QglTable.m_pfn_qglVertex3fv( PicoGetSurfaceXYZ( m_pSurface, PicoGetSurfaceIndex( m_pSurface, i ) ) );
g_QglTable.m_pfn_qglVertex3fv( outerpoint );
}
g_QglTable.m_pfn_qglEnd();*/
break;
default: Sys_FPrintf( SYS_ERR, "ERROR: Unsupported Pico Surface Type: %i", PicoGetSurfaceType( m_pSurface ) );
break;
}
if ( !( rflags & ( DRAW_RF_SEL_OUTLINE | DRAW_RF_SEL_FILL | DRAW_RF_XY ) ) ) {
if ( ( state & DRAW_GL_TEXTURE_2D ) && ( rflags & DRAW_RF_CAM ) && ( pShader->getFlags() & QER_ALPHAFUNC ) ) {
g_QglTable.m_pfn_qglDisable( GL_ALPHA_TEST );
}
/* if(!(state & DRAW_GL_TEXTURE_2D)) {
g_QglTable.m_pfn_qglDisableClientState(GL_COLOR_ARRAY);
}*/
if ( !( state & DRAW_GL_WIRE ) && ( pShader->getFlags() & QER_CULL ) ) {
if ( pShader->getCull() == 2 ) {
g_QglTable.m_pfn_qglPolygonMode( GL_FRONT, GL_LINE );
g_QglTable.m_pfn_qglEnable( GL_CULL_FACE );
}
else // is 1
{
g_QglTable.m_pfn_qglCullFace( GL_FRONT );
}
}
}
}
// private
void CPicoSurface::AccumulateBBox(){
int i;
picoVec_t *p;
aabb_clear( &m_BBox );
for ( i = 0; i < PicoGetSurfaceNumVertexes( m_pSurface ); i++ )
{
p = PicoGetSurfaceXYZ( m_pSurface,i );
aabb_extend_by_point( &m_BBox, p );
}
aabb_update_radius( &m_BBox );
}
bool CPicoSurface::TestRay( const ray_t *ray, vec_t *dist ) const {
int i;
vec_t start_dist = *dist;
vec_t local_dist = *dist;
if ( aabb_intersect_ray( &m_BBox, ray, &local_dist ) ) {
switch ( PicoGetSurfaceType( m_pSurface ) )
{
case PICO_TRIANGLES:
for ( i = 0; i < PicoGetSurfaceNumIndexes( m_pSurface ); i += 3 )
{
local_dist = ray_intersect_triangle( ray, true, PicoGetSurfaceXYZ( m_pSurface,PicoGetSurfaceIndex( m_pSurface,i + 2 ) ),
PicoGetSurfaceXYZ( m_pSurface,PicoGetSurfaceIndex( m_pSurface,i + 1 ) ),
PicoGetSurfaceXYZ( m_pSurface,PicoGetSurfaceIndex( m_pSurface,i ) ) );
if ( local_dist < *dist ) {
*dist = local_dist;
}
}
break;
default:
Sys_FPrintf( SYS_ERR, "ERROR: Unsupported Pico Surface Type: %i", PicoGetSurfaceType( m_pSurface ) );
break;
}
}
return ( *dist < start_dist );
}