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#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <GL/glut.h>
#include <GL/freeglut_ext.h>
#include "common.h"
#include "graphics_cs.h"
#include "graphics_c2.h"
#include "graphics_c3.h"
extern struct gra_global gra_global;
GLenum doubleBuffer;
GLubyte ubImage[65536];
#define RIGHT 320.0
#define LEFT -320.0
#define TOP 240.0
#define BOTTOM -240.0
int c2sX(real x) { return (gra_global.width/(gra_global.split_screen / (gra_global.red_and_blue ? gra_global.split_screen: 1))) * ((x + RIGHT) / (RIGHT *2)) + gra_global.xoff; }
int s2cX(real x) { return (x/(gra_global.width/(gra_global.split_screen / (gra_global.red_and_blue?gra_global.split_screen :1))))*(RIGHT*2)-RIGHT; }
int c2sY(real y) { return gra_global.height * ((TOP-y) / (TOP*2)); }
int s2cY(real y) { return -((y/gra_global.height) * (TOP*2) - TOP); }
cs_t c2_to_cs(c2_t p) {
return (cs_t){c2sX(p.x),c2sY(p.y)};
}
c2_t cs_to_c2(cs_t p) {
return (c2_t){s2cX(p.x),s2cY(p.y)};
}
void set_aspect_ratio(int w,int h) {
glViewport(0,0,w,h);
// glMatrixMode(GL_PROJECTION);
// glLoadIdentity();
// glOrtho(LEFT,RIGHT,BOTTOM,TOP,0,0);
// glTranslatef(0,-h,0);
}
void set_color_based_on_distance(real d) {
//scale this color based on distance... closer is lighter.
// float g;
// g=d/100.0
glColor3f(0.0, 1.0, 0.0);
}
void set_clipping_rectangle(int x,int y,int w,int h) {
}
void draw_c2_line(c2_t p1,c2_t p2) {
//glBegin(GL_TRIANGLES);
glBegin(GL_LINES);
glColor3f(0.0, 1.0, 0.0);
glVertex2i(p1.x,p1.y);
glVertex2i(p2.x,p2.y);
//glVertex2i(p2.x,p2.y);
glEnd();
}
void draw_c2_text(c2_t p,char *s) {
// printf("@%lF,%lF: %s\n",p.x,p.y,s);
}
void draw_c2_shape(c2_s_t s) {
int i;
// printf("drawing shaep!\n");
for(i=0;i<s.len+(s.len==1);i++) {//this shape is closed!
draw_c2_line(s.p[i],s.p[(i+1)%(s.len+(s.len==1))]);
}
/* glBegin(GL_LINE_STRIP);
glColor3f(0.0, 1.0, 0.0);
for(i=0;i<s.len+(s.len==1);i++) {
glVertex2i(s.p[i].x,s.p[i].y);
}
glEnd();
*/
}
void draw_c2_filled_shape(c2_s_t s) {
draw_c2_shape(s);
// glBegin(GL_POLYGON);
// glVertex2s();
// glEnd();
}
void set_color() {
glColor3f(0.0, 1.0, 0.0);
}
void set_color_red() {
glColor3f(1.0, 0.0, 0.0);
}
void set_color_blue() {
glColor3f(0.0, 0.0, 1.0);
}
void clear_backbuffer() {
glClearColor(0.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
// glFlush();
}
void flipscreen() {
// glutSwapBuffers();
glFlush();
}
void red_and_blue_magic() {
}
void keypress_handler(unsigned char key, int x, int y) {//x and y are mouse positions.
switch (key) {
case 27:
exit(0);
}
}
/* draw_screen is in graphics.c
void draw_screen(void)
{
}*/
void derp_screen() {
printf("derpsceen being called.\n");
clear_backbuffer();
set_color();
//this should work for draw_c2_line, not cs_line... merp.
// draw_c2_line((c2_t){LEFT,0},(c2_t){RIGHT,0}); //horizon
// draw_cs_line((cs_t){0,0},(cs_t){1,1});
// draw_cs_line((cs_t){-1,0},(cs_t){0,1});
// draw_cs_line((cs_t){0,0},(cs_t){-1,1});
/*draw_cs_line((cs_t){10,10},(cs_t){200,210});
draw_cs_line((cs_t){50,10},(cs_t){200,210});
draw_cs_line((cs_t){0,60},(cs_t){200,210});*/
flipscreen();
}
void empty() {
}
int graphics_sub_init(void)
{
// GLenum type;
// type = GLUT_RGB;
// type |= GLUT_DOUBLE;
int argc=0;
char *argv[]={"derp",0};
glutInit(&argc,argv);
// glutInitDisplayMode(type);
glutCreateWindow("hackvr opengl and glut testing");
glutInitWindowSize(320,240);
glScalef((1.0/320.0),(1.0/240.0),-1);//only do this once!
// glMatrixMode(GL_PROJECTION);
// glLoadIdentity();
// gluPerspective(60.0, 1.0, 0.1, 1000.0);
// glMatrixMode(GL_MODELVIEW);
// glDisable(GL_DITHER);
printf("test");
glutKeyboardFunc(keypress_handler);
glutDisplayFunc(draw_screen);//this is probably what should happen...
glutReshapeFunc(set_aspect_ratio);
return 0;//we're fine
}
int graphics_event_handler() {//return values: -1 exit, 0 don't redraw, anything else redraw
glutMainLoopEvent();
glutPostRedisplay();//heh. wonder if this works...
return 1;
}
/*
void main(int argc,char *argv[]) {
graphics_init();
while(1) {
graphics_event_handler();
}
}
*/
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