gtkradiant/plugins/model/cpicosurface.cpp

204 lines
7.1 KiB
C++

/*
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());
}
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)
{
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, 1.f ); // identity
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_Printf( "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_Printf( "ERROR: Unsupported Pico Surface Type: %i", PicoGetSurfaceType(m_pSurface) );
break;
}
}
return (*dist < start_dist);
}