I'm trying to get into SDL1 and opengl, this compiles fine under gcc, -lSDL -lGL
why do I get error:
line 6: syntax error near unexpected token `('line 6: `int main()'
#include<SDL/SDL.h>
#include<GL/gl.h>
#include<stdio.h>
#include<stdlib.h>
int main()
{
/*Inintialize SDL as usual */
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
printf("Error: %s\n", SDL_GetError());
return 1;
}
atexit(SDL_Quit);
/* Enable OpenGL double buffering */
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
/*Set the colour depth (16 bit 565). */
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 6);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
/* Create a 640 x 480, 16 bit window with support for
Open GL rendering. Unfortunately we won't know whether
this is hardware accelerated. */
if (SDL_SetVideoMode(640, 480, 16, SDL_OPENGL) == NULL) {
printf("Error: %s\n", SDL_GetError());
return 1;
}
SDL_WM_SetCaption("OpenGL with SDL!", "OpenGL");
/* We can now use any OpenGL rendering commands */
glClearColor(0.0,0.0,0.0,0.0);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0,1.0,1.0);
glOrtho(-1.0,1.0,-1.0,1.0,-1.0,1.0);
glBegin(GL_POLYGON);
glVertex2f(-0.5,-0.5);
glVertex2f(-0.5,0.5);
glVertex2f(0.5,0.5);
glVertex2f(0.5,-0.5);
glEnd();
glFlush();
/*Display the back buffer to the screen */
SDL_GL_SwapBuffers();
/*Wait a few seconds. */
SDL_Delay(5000);
return 0;
}
