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/***************************************************************************
AllegroVisitor.cpp - description
-------------------
begin : Sat Jan 6 2001
copyright : (C) 2001 by Henrik Enqvist
email : henqvist@excite.com
***************************************************************************/
#include "Private.h"
#include "AllegroVisitor.h"
#include "Group.h"
#include "Shape3D.h"
#include "Polygon.h"
#include "BillBoard.h"
#include "Config.h"
AllegroVisitor * AllegroVisitor::p_AllegroVisitor = NULL;
AllegroVisitor::AllegroVisitor(){
#if EM_USE_ALLEGRO
//
for (int a=0; a<256; a++) {
alleg_vtx_p[a] = &alleg_vtx[a];
alleg_clip_p[a] = &alleg_clip[a];
alleg_tmp_p[a] = &alleg_tmp[a];
}
m_iMode = EM_ALLEGRO_GCOL_TEX;
#endif // EM_USE_ALLEGRO
}
AllegroVisitor::~AllegroVisitor() {
p_AllegroVisitor = NULL;
}
AllegroVisitor * AllegroVisitor::getInstance() {
if (p_AllegroVisitor == NULL) {
p_AllegroVisitor = new AllegroVisitor();
}
return p_AllegroVisitor;
}
void AllegroVisitor::empty() {
#if EM_USE_ALLEGRO
switch (m_iMode) {
case EM_ALLEGRO_GCOL_TEX: {
drawing_mode(DRAW_MODE_SOLID, NULL, 0, 0);
} break;
case EM_ALLEGRO_GCOL_TEX_TRANS: {
drawing_mode(DRAW_MODE_SOLID, NULL, 0, 0);
} break;
case EM_ALLEGRO_CLEAN: {
} break;
}
#endif // EM_USE_ALLEGRO
}
#if EM_USE_ALLEGRO
void AllegroVisitor::visit(Group * g) {
int filter = Config::getInstance()->getGLFilter();
switch (m_iMode) {
case EM_ALLEGRO_GCOL_TEX: {
// shapes
vector<Shape3D*>::iterator shapeIter = g->m_vShape3D.begin();
vector<Shape3D*>::iterator shapeEnd = g->m_vShape3D.end();
for ( ; shapeIter != shapeEnd; ++shapeIter) {
if (EM_SHAPE3D_HIDDEN & (*shapeIter)->m_iProperties) continue;
vector<Polygon3D*>::iterator polyIter = (*shapeIter)->m_vPolygon.begin();
vector<Polygon3D*>::iterator polyEnd = (*shapeIter)->m_vPolygon.end();
for ( ; polyIter != polyEnd; polyIter++) {
// if ((*polyIter)->m_iProperties & EM_POLY_HIDDEN) continue;
if ((*polyIter)->m_iProperties & EM_POLY_TRANS) continue;
vector<int>::iterator indexIter = (*polyIter)->m_vIndex.begin();
vector<int>::iterator indexEnd = (*polyIter)->m_vIndex.end();
// 3.4 %
int index=0;
// TODO implement a fast float to int conversion and fast clamp;
// see section 2.1 i Game Prog Gems 2
if ((*shapeIter)->m_Texture == NULL || filter == -1) {
// color polygon
for (; indexIter != indexEnd; ++indexIter, ++index) {
#if 0
alleg_vtx[index].x = (*shapeIter)->m_vVtxAlign[(*indexIter)].x;
alleg_vtx[index].y = (*shapeIter)->m_vVtxAlign[(*indexIter)].y;
alleg_vtx[index].z = (*shapeIter)->m_vVtxAlign[(*indexIter)].z;
alleg_vtx[index].u = 0;
alleg_vtx[index].v = 0;
alleg_vtx[index].c = 0xFFFFFF;
#else
// TODO Fix this slow copying !!!
alleg_vtx[index].x = (*shapeIter)->m_vVtxAlign[(*indexIter)].x;
alleg_vtx[index].y = (*shapeIter)->m_vVtxAlign[(*indexIter)].y;
alleg_vtx[index].z = (*shapeIter)->m_vVtxAlign[(*indexIter)].z;
float r = (*shapeIter)->m_vLitColor[(*indexIter)].r*255.0f;
float g = (*shapeIter)->m_vLitColor[(*indexIter)].g*255.0f;
float b = (*shapeIter)->m_vLitColor[(*indexIter)].b*255.0f;
int ir = (int)r;
int ig = (int)g;
int ib = (int)b;
alleg_vtx[index].c = makecol(EM_MIN(ir,255), EM_MIN(ig,255), EM_MIN(ib,255));
#endif
}
} else {
// textured polygon
for (; indexIter != indexEnd; ++indexIter, ++index) {
// TODO Fix this slow copying !!!
alleg_vtx[index].x = (*shapeIter)->m_vVtxAlign[(*indexIter)].x;
alleg_vtx[index].y = (*shapeIter)->m_vVtxAlign[(*indexIter)].y;
alleg_vtx[index].z = (*shapeIter)->m_vVtxAlign[(*indexIter)].z;
// TODO Not all textures are 256
alleg_vtx[index].u = (int)((*shapeIter)->m_vTexCoord[(*indexIter)].u*255.0f);
alleg_vtx[index].v = (int)((*shapeIter)->m_vTexCoord[(*indexIter)].v*255.0f);
float r = (*shapeIter)->m_vLitColor[(*indexIter)].r*255.0f;
float g = (*shapeIter)->m_vLitColor[(*indexIter)].g*255.0f;
float b = (*shapeIter)->m_vLitColor[(*indexIter)].b*255.0f;
int ir = (int)r;
int ig = (int)g;
int ib = (int)b;
ib = EM_MAX(ir, EM_MAX(ig, ib));
alleg_vtx[index].c = EM_MIN(ib, 255);
}
}
// 52.9 %
if (index < 3) continue;
EmAssert(index < 128, "AllegorVisitor::visit polygonedge amout to large");
// clip
int size = 0;
if ((*shapeIter)->m_Texture == NULL || filter == -1) {
size = clip3d_f(POLYTYPE_GCOL, 0.1, 1000, index,
(AL_CONST V3D_f**)alleg_vtx_p,alleg_clip_p, alleg_tmp_p, int_tmp);
} else {
size = clip3d_f(POLYTYPE_ATEX, 0.1, 1000, index, (AL_CONST V3D_f**)alleg_vtx_p,
alleg_clip_p, alleg_tmp_p, int_tmp);
}
if (size < 3) continue;
// project, if clause moved outside for loop for perfomance
// most likely scenario first
if (!((*shapeIter)->m_iProperties & (EM_SHAPE3D_BEHIND + EM_SHAPE3D_BEHIND2))) {
for (int a=0; a<size; ++a) {
persp_project_f(alleg_clip[a].x, alleg_clip[a].y, alleg_clip[a].z,
&alleg_clip[a].x, &alleg_clip[a].y);
}
} else if ((*shapeIter)->m_iProperties & EM_SHAPE3D_BEHIND) {
for (int a=0; a<size; ++a) {
persp_project_f(alleg_clip[a].x, alleg_clip[a].y, alleg_clip[a].z,
&alleg_clip[a].x, &alleg_clip[a].y);
alleg_clip[a].z += 0.1f;
}
} else if ((*shapeIter)->m_iProperties & EM_SHAPE3D_BEHIND2) {
for (int a=0; a<size; ++a) {
persp_project_f(alleg_clip[a].x, alleg_clip[a].y, alleg_clip[a].z,
&alleg_clip[a].x, &alleg_clip[a].y);
alleg_clip[a].z += 0.2f;
}
}
// cull
if (polygon_z_normal_f(alleg_clip_p[0], alleg_clip_p[1], alleg_clip_p[2]) < 0) continue;
//53.5 %
// render
if ((*shapeIter)->m_Texture == NULL || filter == -1) {
polygon3d_f(backbuffer, POLYTYPE_GCOL | POLYTYPE_ZBUF, NULL, size, alleg_clip_p);
} else {
polygon3d_f(backbuffer, POLYTYPE_ATEX_LIT | POLYTYPE_ZBUF, (*shapeIter)->m_Texture,
size, alleg_clip_p);
}
// 72 % (79%)
}
}
// billboard TODO
BillBoard * b = g->p_BillBoard;
if (b != NULL && b->m_iProperties & EM_BILLBOARD_TRANS) {
EmAssert(b->m_Texture != NULL, "all billboards must have a texture");
EM_COUT_D("AllegroVisitor::visit() BillBoard at " << b->m_vtxAlign.x <<" "<<
b->m_vtxAlign.y <<" "<< b->m_vtxAlign.z, 0);
}
} break;
case EM_ALLEGRO_GCOL_TEX_TRANS: {
// shapes
vector<Shape3D*>::iterator shapeIter = g->m_vShape3D.begin();
vector<Shape3D*>::iterator shapeEnd = g->m_vShape3D.end();
for ( ; shapeIter != shapeEnd; ++shapeIter) {
if (EM_SHAPE3D_HIDDEN & (*shapeIter)->m_iProperties) continue;
if (!(EM_SHAPE3D_USE_TRANS & (*shapeIter)->m_iProperties)) continue;
vector<Polygon3D*>::iterator polyIter = (*shapeIter)->m_vPolygon.begin();
vector<Polygon3D*>::iterator polyEnd = (*shapeIter)->m_vPolygon.end();
for ( ; polyIter != polyEnd; ++polyIter) {
// if ((*polyIter)->m_iProperties & EM_POLY_HIDDEN) continue;
if (!((*polyIter)->m_iProperties & EM_POLY_TRANS)) continue;
vector<int>::iterator indexIter = (*polyIter)->m_vIndex.begin();
vector<int>::iterator indexEnd = (*polyIter)->m_vIndex.end();
int index=0;
if ((*shapeIter)->m_Texture == NULL || filter == -1) {
// color polygon
for (; indexIter != indexEnd; ++indexIter, ++index) {
// TODO Fix this slow copying !!!
alleg_vtx[index].x = (*shapeIter)->m_vVtxAlign[(*indexIter)].x;
alleg_vtx[index].y = (*shapeIter)->m_vVtxAlign[(*indexIter)].y;
alleg_vtx[index].z = (*shapeIter)->m_vVtxAlign[(*indexIter)].z;
// TODO implement a fast float to int conversion and fast clamp;
// see section 2.1 i Game Prog Gems 2
float r = (*shapeIter)->m_vLitColor[(*indexIter)].r*255.0f;
float g = (*shapeIter)->m_vLitColor[(*indexIter)].g*255.0f;
float b = (*shapeIter)->m_vLitColor[(*indexIter)].b*255.0f;
int ir = (int)r;
int ig = (int)g;
int ib = (int)b;
alleg_vtx[index].c = makecol(EM_MIN(ir,255), EM_MIN(ig,255), EM_MIN(ib,255));
}
} else {
// textured polygon
for (; indexIter != indexEnd; ++indexIter, ++index) {
// TODO Fix this slow copying !!!
alleg_vtx[index].x = (*shapeIter)->m_vVtxAlign[(*indexIter)].x;
alleg_vtx[index].y = (*shapeIter)->m_vVtxAlign[(*indexIter)].y;
alleg_vtx[index].z = (*shapeIter)->m_vVtxAlign[(*indexIter)].z;
// TODO Not all textures are 255
alleg_vtx[index].u = (int)((*shapeIter)->m_vTexCoord[(*indexIter)].u*255.0f);
alleg_vtx[index].v = (int)((*shapeIter)->m_vTexCoord[(*indexIter)].v*255.0f);
// TODO implement a fast float to int conversion and fast clamp;
// see section 2.1 i Game Prog Gems 2
float r = (*shapeIter)->m_vLitColor[(*indexIter)].r*255.0f;
float g = (*shapeIter)->m_vLitColor[(*indexIter)].g*255.0f;
float b = (*shapeIter)->m_vLitColor[(*indexIter)].b*255.0f;
int ir = (int)r;
int ig = (int)g;
int ib = (int)b;
ib = EM_MAX(ir, EM_MAX(ig, ib));
alleg_vtx[index].c = EM_MIN(ib,255) ;
}
}
if (index < 3) continue;
EmAssert(index < 128, "AllegorVisitor::visit polygonedge amout to large");
// clip
int size = 0;
if ((*shapeIter)->m_Texture == NULL || filter == -1) {
size = clip3d_f(POLYTYPE_GCOL, 0.1, 1000, index,
(AL_CONST V3D_f**)alleg_vtx_p,alleg_clip_p, alleg_tmp_p, int_tmp);
} else {
size = clip3d_f(POLYTYPE_ATEX, 0.1, 1000, index, (AL_CONST V3D_f**)alleg_vtx_p,
alleg_clip_p, alleg_tmp_p, int_tmp);
}
if (size < 3) continue;
// project, if clause moved outside for loop for perfomance
if ((*shapeIter)->m_iProperties & EM_SHAPE3D_BEHIND) {
for (int a=0; a<size; ++a) {
persp_project_f(alleg_clip[a].x, alleg_clip[a].y, alleg_clip[a].z,
&alleg_clip[a].x, &alleg_clip[a].y);
alleg_clip[a].z += 0.1f;
}
} else if ((*shapeIter)->m_iProperties & EM_SHAPE3D_BEHIND2) {
for (int a=0; a<size; ++a) {
persp_project_f(alleg_clip[a].x, alleg_clip[a].y, alleg_clip[a].z,
&alleg_clip[a].x, &alleg_clip[a].y);
alleg_clip[a].z += 0.2f;
}
} else {
for (int a=0; a<size; ++a) {
persp_project_f(alleg_clip[a].x, alleg_clip[a].y, alleg_clip[a].z,
&alleg_clip[a].x, &alleg_clip[a].y);
}
}
// cull
if (polygon_z_normal_f(alleg_clip_p[0], alleg_clip_p[1], alleg_clip_p[2]) < 0) continue;
// render
if ((*shapeIter)->m_Texture == NULL || filter == -1) {
polygon3d_f(backbuffer, POLYTYPE_GCOL | POLYTYPE_ZBUF, NULL, size, alleg_clip_p);
} else {
polygon3d_f(backbuffer, POLYTYPE_ATEX_MASK_LIT | POLYTYPE_ZBUF,
(*shapeIter)->m_Texture, size, alleg_clip_p);
}
}
}
// billboard TODO
BillBoard * b = g->p_BillBoard;
if (b != NULL && b->m_iProperties & EM_BILLBOARD_TRANS) {
EmAssert(b->m_Texture != NULL, "all billboards must have a texture");
EM_COUT_D("AllegroVisitor::visit() BillBoard at " << b->m_vtxAlign.x <<" "<<
b->m_vtxAlign.y <<" "<< b->m_vtxAlign.z, 0);
}
} break;
}
}
#else
void AllegroVisitor::visit(Group *) {
}
#endif // EM_USE_ALLEGRO
|
