mpri-graphics-project/render/GlutRender.cpp

71 lines
1.7 KiB
C++

#include "GlutRender.hpp"
#include <GL/gl.h>
#include <GL/glut.h>
#include <cstring>
GlutRender& GlutRender::get_instance() {
static GlutRender instance;
return instance;
}
GlutRender::GlutRender() { }
void GlutRender::init(int* argc, char** argv,
int wid, int hei, const char* win_name)
{
glutInit(argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(wid, hei);
glutCreateWindow(win_name);
glClearColor(0.0, 0.0, 0.0, 0.0);
glShadeModel(GL_FLAT);
glutDisplayFunc(display_handle);
glutReshapeFunc(reshape_handle);
}
void GlutRender::cleanup() {
}
void GlutRender::add_mesh(const Mesh* mesh) {
meshes.insert(mesh);
}
void GlutRender::remove_mesh(const Mesh* mesh) {
meshes.erase(mesh);
}
void GlutRender::run() {
}
void GlutRender::reshape(int wid, int hei) {
glViewport(0, 0, (GLsizei) wid, (GLsizei) hei);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0, (GLdouble) wid, 0.0, (GLdouble) hei);
}
void GlutRender::display() {
for(const Mesh* mesh: meshes) {
const std::vector<Point>& points = mesh->get_vertices();
for(const Face& face: mesh->get_faces()) {
const Point& p0 = face.pt(0, points),
p1 = face.pt(2, points),
p2 = face.pt(2, points);
glBegin(GL_TRIANGLES);
glVertex3d(p0[0], p0[1], p0[2]);
glVertex3d(p1[0], p1[1], p1[2]);
glVertex3d(p2[0], p2[1], p2[2]);
glEnd();
}
}
}
void GlutRender::reshape_handle(int wid, int hei) {
get_instance().reshape(wid, hei);
}
void GlutRender::display_handle() {
get_instance().display();
}