#include"bmpload.h"int subwin;
int mainwin;
GLuint textures[2]; // Storage for one texture.
void init()
{
glClearColor(0,0,0,0);//Background color here
}
void backround()
{
loadbmp(textures, "image.bmp",0); // Load our image in textures[0]
glBindTexture(GL_TEXTURE_2D, textures[0]); // Bind inage from texture[0]
glEnable(GL_TEXTURE_2D); // Start texturing on polygon
glBegin(GL_QUADS);// Just create a simple square
glTexCoord2f(0,1); glVertex2f(-4,4); //(Upper left corner)
glTexCoord2f(1,1); glVertex2f(4,4); //(Upper right corner)
glTexCoord2f(1,0); glVertex2f(4,-4); //(Lower right corner)
glTexCoord2f(0,0); glVertex2f(-4,-4); //(Lower left corner)
glEnd();
glDisable(GL_TEXTURE_2D); // Stop Texturing
glutSwapBuffers(); //Swap the front buffer (the visible buffer) and back buffer(the invisible buffer)
glFlush(); // Draw everything to the screen
}
void display2()
{
loadbmp(textures, "imagee.bmp",1); // Load our image in textures[0]
glBindTexture(GL_TEXTURE_2D, textures[1]); // Used to select the texture out of array
glEnable(GL_TEXTURE_2D); // Start texturing
glBegin(GL_QUADS);// Just create a simple square
glTexCoord2f(0,1); glVertex2f(-4,4); //(Upper left corner)
glTexCoord2f(1,1); glVertex2f(4,4); //(Upper right corner)
glTexCoord2f(1,0); glVertex2f(4,-4); //(Lower right corner)
glTexCoord2f(0,0); glVertex2f(-4,-4); //(Lower left corner)
glEnd();
glDisable(GL_TEXTURE_2D); // Stop Texturing
glutSwapBuffers();
glFlush();
}
void keyboard(unsigned char key, int x, int y)
{
switch(key)//(NEW) use a switch statement
{
case 1:
glutDestroyWindow(mainwin);
break;
case 2:
break;
}
}
int main(int argc, char ** argv)
{
glutInit(&argc, argv);
glutInitWindowSize(800,600);
glutInitWindowPosition(10,50);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE); // Use "Double Buffer" Draw on back buffer then sent to front
mainwin = glutCreateWindow("Lesson 5"); // Main Window
init(); // Must load image onto a polygon
glutDisplayFunc(backround); // Load polygon with Image
subwin = glutCreateSubWindow(mainwin, 50,10,200,200); // Sub Windows(place x,y(size x,y))
init();
glutDisplayFunc(display2);
glutKeyboardFunc(keyboard);
glutMainLoop();
return 0;
}
