#include <windows.h>
#include<gl/glut.h>
#include<gl/glu.h>
#include<gl/gl.h>
#include "bmp.h"
#include "ext.h"

float xtrans=0.0;
float ytrans=0.0;

GLubyte *Bits=NULL;
BITMAPINFO *Info=NULL;
GLuint texture[1];

void myInit(void) {
	Bits=LoadDIBitmap("tex.bmp", &Info);
	glGenTextures(1, &texture[0]);
	glBindTexture(GL_TEXTURE_2D, texture[0]);
	glTexImage2D(GL_TEXTURE_2D, 0, 3, Info->bmiHeader.biWidth, Info->bmiHeader.biHeight, 0, GL_BGR, GL_UNSIGNED_BYTE, Bits);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glShadeModel(GL_SMOOTH);
	glClearColor(0.0, 0.0, 0.0, 0.0);
	glClear(GL_COLOR_BUFFER_BIT);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	gluOrtho2D(0.0, 640.0, 0.0, 480.0);
	glEnable(GL_TEXTURE_2D);
	}

void renderScene(void) {
	glClear(GL_COLOR_BUFFER_BIT);
	glBindTexture(GL_TEXTURE_2D, texture[0]);
	
	glPushMatrix();
	glTranslatef(xtrans, ytrans, 0);
	glBegin(GL_QUADS);
		glTexCoord2f(0.0, 0.0); glVertex2f(20, 20);
		glTexCoord2f(1.0, 0.0); glVertex2f(84, 20);
		glTexCoord2f(1.0, 1.0); glVertex2f(84, 84);
		glTexCoord2f(0.0, 1.0); glVertex2f(20, 84);
	glEnd();
	
	glPopMatrix();
	glutSwapBuffers();
}

void myTimer(int z) {
	xtrans+=1;
	glutPostRedisplay();
	glutTimerFunc(20, myTimer, z);
	}

void main(int argc, char **argv) {
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA);
	glutInitWindowPosition(100,100);
	glutInitWindowSize(640,480);
	glutCreateWindow("Stuff");
	myInit();
	glutDisplayFunc(renderScene);
	glutTimerFunc(20, myTimer, 0);
	glutMainLoop();
}