1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/main.c	Sat Nov 18 20:04:16 2017 +0200
     1.3 @@ -0,0 +1,95 @@
     1.4 +#include <stdio.h>
     1.5 +#include <stdlib.h>
     1.6 +#include <GL/glew.h>
     1.7 +#include <GL/glut.h>
     1.8 +#include "sdr.h"
     1.9 +
    1.10 +int init(void);
    1.11 +void cleanup(void);
    1.12 +void disp(void);
    1.13 +void reshape(int x, int y);
    1.14 +void keyb(unsigned char key, int x, int y);
    1.15 +void mouse(int bn, int st, int x, int y);
    1.16 +void motion(int x, int y);
    1.17 +
    1.18 +static float aspect;
    1.19 +static int mouse_x, mouse_y;
    1.20 +static unsigned int prog_mbrot;
    1.21 +
    1.22 +int main(int argc, char **argv)
    1.23 +{
    1.24 +	glutInit(&argc, argv);
    1.25 +	glutInitWindowSize(1280, 800);
    1.26 +	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    1.27 +	glutCreateWindow("fractorb");
    1.28 +
    1.29 +	glutDisplayFunc(disp);
    1.30 +	glutReshapeFunc(reshape);
    1.31 +	glutKeyboardFunc(keyb);
    1.32 +	glutMouseFunc(mouse);
    1.33 +	glutMotionFunc(motion);
    1.34 +
    1.35 +	if(init() == -1) {
    1.36 +		return 1;
    1.37 +	}
    1.38 +	atexit(cleanup);
    1.39 +
    1.40 +	glutMainLoop();
    1.41 +	return 0;
    1.42 +}
    1.43 +
    1.44 +
    1.45 +int init(void)
    1.46 +{
    1.47 +	glewInit();
    1.48 +
    1.49 +	if(!(prog_mbrot = create_program_load("vertex.glsl", "mbrot.glsl"))) {
    1.50 +		return -1;
    1.51 +	}
    1.52 +	set_uniform_float(prog_mbrot, "view_scale", 1.1);
    1.53 +	set_uniform_float2(prog_mbrot, "view_center", 0.7, 0);
    1.54 +	return 0;
    1.55 +}
    1.56 +
    1.57 +void cleanup(void)
    1.58 +{
    1.59 +	free_program(prog_mbrot);
    1.60 +}
    1.61 +
    1.62 +void disp(void)
    1.63 +{
    1.64 +	glUseProgram(prog_mbrot);
    1.65 +
    1.66 +	glBegin(GL_QUADS);
    1.67 +	glTexCoord2f(-aspect, 1); glVertex2f(-1, -1);
    1.68 +	glTexCoord2f(aspect, 1); glVertex2f(1, -1);
    1.69 +	glTexCoord2f(aspect, -1); glVertex2f(1, 1);
    1.70 +	glTexCoord2f(-aspect, -1); glVertex2f(-1, 1);
    1.71 +	glEnd();
    1.72 +
    1.73 +	glutSwapBuffers();
    1.74 +}
    1.75 +
    1.76 +void reshape(int x, int y)
    1.77 +{
    1.78 +	glViewport(0, 0, x, y);
    1.79 +
    1.80 +	aspect = (float)x / (float)y;
    1.81 +}
    1.82 +
    1.83 +void keyb(unsigned char key, int x, int y)
    1.84 +{
    1.85 +	if(key == 27) {
    1.86 +		exit(0);
    1.87 +	}
    1.88 +}
    1.89 +
    1.90 +void mouse(int bn, int st, int x, int y)
    1.91 +{
    1.92 +}
    1.93 +
    1.94 +void motion(int x, int y)
    1.95 +{
    1.96 +	mouse_x = x;
    1.97 +	mouse_y = y;
    1.98 +}