212 lines
7.5 KiB
C++
212 lines
7.5 KiB
C++
/****************************************************************************
|
|
* VCGLib o o *
|
|
* Visual and Computer Graphics Library o o *
|
|
* _ O _ *
|
|
* Copyright(C) 2004 \/)\/ *
|
|
* Visual Computing Lab /\/| *
|
|
* ISTI - Italian National Research Council | *
|
|
* \ *
|
|
* All rights reserved. *
|
|
* *
|
|
* This program 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. *
|
|
* *
|
|
* This program 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 (http://www.gnu.org/licenses/gpl.txt) *
|
|
* for more details. *
|
|
* *
|
|
****************************************************************************/
|
|
/****************************************************************************
|
|
History
|
|
|
|
$Log: not supported by cvs2svn $
|
|
Revision 1.1 2005/09/21 10:29:33 cignoni
|
|
Initial Relase
|
|
|
|
****************************************************************************/
|
|
#include <SDL/SDL.h>
|
|
|
|
#include <gl/glew.h>
|
|
#include <vector>
|
|
|
|
// mesh definition
|
|
#include <vcg/simplex/vertexplus/base.h>
|
|
#include <vcg/simplex/faceplus/base.h>
|
|
#include <vcg/complex/trimesh/base.h>
|
|
#include <vcg/complex/trimesh/update/bounding.h>
|
|
#include <vcg/complex/trimesh/update/normal.h>
|
|
#include <wrap/io_trimesh/import.h>
|
|
#include <wrap/gl/trimesh.h>
|
|
#include <wrap/gui/trackball.h>
|
|
|
|
using namespace vcg;
|
|
using namespace std;
|
|
class CEdge; // dummy prototype never used
|
|
class CFace;
|
|
|
|
class CVertex : public VertexSimp2< CVertex, CEdge, CFace, vert::Coord3f, vert::Normal3f >{};
|
|
class CFace : public FaceSimp2< CVertex, CEdge, CFace, face::VertexRef, face::Normal3f > {};
|
|
class CMesh : public vcg::tri::TriMesh< vector<CVertex>, vector<CFace> > {};
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////
|
|
// Globals: the mesh, the OpenGL wrapper to draw the mesh and the trackball.
|
|
CMesh mesh;
|
|
vcg::GlTrimesh<CMesh> glWrap;
|
|
vcg::Trackball track;
|
|
int drawMode;
|
|
int width =1024;
|
|
int height = 768;
|
|
|
|
////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
void initGL()
|
|
{
|
|
glClearColor(0, 0, 0, 0);
|
|
glEnable(GL_LIGHTING);
|
|
glEnable(GL_LIGHT0);
|
|
glEnable(GL_NORMALIZE);
|
|
glEnable(GL_COLOR_MATERIAL);
|
|
glEnable(GL_CULL_FACE);
|
|
glEnable(GL_DEPTH_TEST);
|
|
}
|
|
|
|
|
|
void myReshapeFunc(GLsizei w, GLsizei h)
|
|
{
|
|
SDL_SetVideoMode(w, h, 0, SDL_OPENGL|SDL_RESIZABLE|SDL_DOUBLEBUF);
|
|
width=w;
|
|
height=h;
|
|
glViewport (0, 0, (GLsizei) w, (GLsizei) h);
|
|
initGL();
|
|
}
|
|
|
|
bool initSDL(const std::string &str) {
|
|
/* Initialize SDL for video output */
|
|
if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
|
|
fprintf(stderr, "Unable to initialize SDL: %s\n", SDL_GetError());
|
|
exit(1);
|
|
}
|
|
if ( SDL_SetVideoMode(width, height, 0, SDL_OPENGL|SDL_RESIZABLE) == NULL ) {
|
|
fprintf(stderr, "Unable to create OpenGL screen: %s\n", SDL_GetError());
|
|
SDL_Quit();
|
|
exit(2);
|
|
}
|
|
|
|
SDL_WM_SetCaption(str.c_str(), str.c_str());
|
|
myReshapeFunc(width, height);
|
|
return true;
|
|
}
|
|
|
|
void display(){
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
gluPerspective(40, width/(float)height, 0.1, 100);
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
gluLookAt(0,0,5, 0,0,0, 0,1,0);
|
|
|
|
track.center=Point3f(0, 0, 0);
|
|
track.radius= 1;
|
|
|
|
track.GetView();
|
|
track.Apply();
|
|
|
|
float d=1.0f/mesh.bbox.Diag();
|
|
glScale(d);
|
|
glTranslate(-glWrap.m->bbox.Center());
|
|
|
|
// the trimesh drawing calls
|
|
switch(drawMode)
|
|
{
|
|
case 0: glWrap.Draw<vcg::GLW::DMSmooth, vcg::GLW::CMNone,vcg::GLW::TMNone> ();break;
|
|
case 1: glWrap.Draw<vcg::GLW::DMPoints, vcg::GLW::CMNone,vcg::GLW::TMNone> ();break;
|
|
case 2: glWrap.Draw<vcg::GLW::DMWire, vcg::GLW::CMNone,vcg::GLW::TMNone> ();break;
|
|
case 3: glWrap.Draw<vcg::GLW::DMFlatWire, vcg::GLW::CMNone,vcg::GLW::TMNone> ();break;
|
|
case 4: glWrap.Draw<vcg::GLW::DMHidden, vcg::GLW::CMNone,vcg::GLW::TMNone> ();break;
|
|
case 5: glWrap.Draw<vcg::GLW::DMFlat, vcg::GLW::CMNone,vcg::GLW::TMNone> ();break;
|
|
default: break;
|
|
}
|
|
SDL_GL_SwapBuffers();
|
|
}
|
|
|
|
// The Event Loop Processor
|
|
int sdl_idle() {
|
|
bool quit=false;
|
|
SDL_Event event;
|
|
while( !quit ) {
|
|
SDL_WaitEvent(&event);
|
|
switch( event.type ) {
|
|
case SDL_QUIT: quit = true; break;
|
|
case SDL_VIDEORESIZE : myReshapeFunc(event.resize.w,event.resize.h); break;
|
|
case SDL_KEYDOWN:
|
|
switch(event.key.keysym.sym) {
|
|
case SDLK_RCTRL:
|
|
case SDLK_LCTRL: track.ButtonDown(vcg::Trackball::KEY_CTRL); break;
|
|
case SDLK_q: exit(0); break;
|
|
case SDLK_SPACE: drawMode=((drawMode+1)%6); printf("Current Mode %i\n",drawMode); break;
|
|
} break;
|
|
case SDL_KEYUP:
|
|
switch(event.key.keysym.sym) {
|
|
case SDLK_RCTRL:
|
|
case SDLK_LCTRL: track.ButtonUp(vcg::Trackball::KEY_CTRL); break;
|
|
} break;
|
|
case SDL_MOUSEBUTTONDOWN:
|
|
switch(event.button.button) {
|
|
case SDL_BUTTON_WHEELUP: track.MouseWheel( 1); break;
|
|
case SDL_BUTTON_WHEELDOWN: track.MouseWheel(-1); break;
|
|
case SDL_BUTTON_LEFT: track.MouseDown(event.button.x, (height - event.button.y), vcg::Trackball::BUTTON_LEFT); break;
|
|
case SDL_BUTTON_RIGHT: track.MouseDown(event.button.x, (height - event.button.y), vcg::Trackball::BUTTON_RIGHT);break;
|
|
} break;
|
|
case SDL_MOUSEBUTTONUP:
|
|
switch(event.button.button) {
|
|
case SDL_BUTTON_LEFT: track.MouseUp(event.button.x, (height - event.button.y), vcg::Trackball::BUTTON_LEFT); break;
|
|
case SDL_BUTTON_RIGHT: track.MouseUp(event.button.x, (height - event.button.y), vcg::Trackball::BUTTON_RIGHT);break;
|
|
} break;
|
|
case SDL_MOUSEMOTION:
|
|
while(SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_MOUSEMOTIONMASK));
|
|
track.MouseMove(event.button.x, (height - event.button.y));
|
|
break;
|
|
case SDL_VIDEOEXPOSE:
|
|
default: break;
|
|
}
|
|
display();
|
|
}
|
|
|
|
SDL_Quit();
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char *argv[]) {
|
|
// Generic loading of the mesh from disk
|
|
if(vcg::tri::io::Importer<CMesh>::Open(mesh,argv[1])!=0) {
|
|
fprintf(stderr,"Error reading file %s\n",argv[1]);
|
|
exit(0);
|
|
}
|
|
|
|
// Initialize the mesh itself
|
|
vcg::tri::UpdateBounding<CMesh>::Box(mesh); // update bounding box
|
|
//vcg::tri::UpdateNormals<CMesh>::PerVertexNormalizePerFaceNormalized(mesh); // update Normals
|
|
vcg::tri::UpdateNormals<CMesh>::PerVertexPerFace(mesh); // update Normals
|
|
|
|
// Initialize the wrapper
|
|
glWrap.m = &mesh;
|
|
glWrap.Update();
|
|
|
|
initSDL("SDL_minimal_viewer");
|
|
initGL();
|
|
sdl_idle();
|
|
exit(0);
|
|
}
|
|
|
|
|
|
|