19682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 29682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * Small SDL example to demonstrate dynamically loading 39682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * OpenGL lib and functions 49682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 59682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * (FYI it was supposed to look like snow in the wind or something...) 69682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 79682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * Compile with : 89682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * gcc testdyngl.c `sdl-config --libs --cflags` -o testdyngl -DHAVE_OPENGL 99682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * You can specify a different OpenGL lib on the command line, i.e. : 119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * ./testdyngl /usr/X11R6/lib/libGL.so.1.2 129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * or 139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * ./testdyngl /usr/lib/libGL.so.1.0.4496 149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall */ 169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <stdio.h> 189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <stdlib.h> 199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL.h" 219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifdef __MACOS__ 239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define HAVE_OPENGL 249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifdef HAVE_OPENGL 279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_opengl.h" 299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ 319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic void quit(int rc) 329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_Quit(); 349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall exit(rc); 359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid* get_funcaddr(const char* p) 389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void* f=SDL_GL_GetProcAddress(p); 409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (f) 419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return f; 439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall else 459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall printf("Unable to get function pointer for %s\n",p); 479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall quit(1); 489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return NULL; 509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Halltypedef struct 539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glBegin)(GLenum); 559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glEnd)(); 569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glVertex3f)(GLfloat, GLfloat, GLfloat); 579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glClearColor)(GLfloat, GLfloat, GLfloat, GLfloat); 589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glClear)(GLbitfield); 599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glDisable)(GLenum); 609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glEnable)(GLenum); 619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glColor4ub)(GLubyte,GLubyte,GLubyte,GLubyte); 629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glPointSize)(GLfloat); 639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glHint)(GLenum,GLenum); 649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glBlendFunc)(GLenum,GLenum); 659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glMatrixMode)(GLenum); 669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glLoadIdentity)(); 679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glOrtho)(GLdouble,GLdouble,GLdouble,GLdouble,GLdouble,GLdouble); 689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glRotatef)(GLfloat,GLfloat,GLfloat,GLfloat); 699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glViewport)(GLint,GLint,GLsizei,GLsizei); 709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall void(APIENTRY*glFogf)(GLenum,GLfloat); 719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallglfuncs; 739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid init_glfuncs(glfuncs* f) 759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glBegin=get_funcaddr("glBegin"); 779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glEnd=get_funcaddr("glEnd"); 789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glVertex3f=get_funcaddr("glVertex3f"); 799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glClearColor=get_funcaddr("glClearColor"); 809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glClear=get_funcaddr("glClear"); 819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glDisable=get_funcaddr("glDisable"); 829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glEnable=get_funcaddr("glEnable"); 839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glColor4ub=get_funcaddr("glColor4ub"); 849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glPointSize=get_funcaddr("glPointSize"); 859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glHint=get_funcaddr("glHint"); 869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glBlendFunc=get_funcaddr("glBlendFunc"); 879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glMatrixMode=get_funcaddr("glMatrixMode"); 889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glLoadIdentity=get_funcaddr("glLoadIdentity"); 899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glOrtho=get_funcaddr("glOrtho"); 909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glRotatef=get_funcaddr("glRotatef"); 919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glViewport=get_funcaddr("glViewport"); 929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f->glFogf=get_funcaddr("glFogf"); 939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define NB_PIXELS 1000 969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint main(int argc,char *argv[]) 989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall glfuncs f; 1009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int i; 1019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_Event event; 1029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int done=0; 1039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GLfloat pixels[NB_PIXELS*3]; 1049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall const char *gl_library = NULL; /* Use the default GL library */ 1059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (argv[1]) { 1079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall gl_library = argv[1]; 1089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (SDL_Init(SDL_INIT_VIDEO)<0) 1119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall printf("Unable to init SDL : %s\n",SDL_GetError()); 1139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(1); 1149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1)<0) 1179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall printf("Unable to set GL attribute : %s\n",SDL_GetError()); 1199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall quit(1); 1209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (SDL_GL_LoadLibrary(gl_library)<0) 1239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall printf("Unable to dynamically open GL lib : %s\n",SDL_GetError()); 1259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall quit(1); 1269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (SDL_SetVideoMode(640,480,0,SDL_OPENGL)==NULL) 1299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall printf("Unable to open video mode : %s\n",SDL_GetError()); 1319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall quit(1); 1329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Set the window manager title bar */ 1359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_WM_SetCaption( "SDL Dynamic OpenGL Loading Test", "testdyngl" ); 1369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall init_glfuncs(&f); 1389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall for(i=0;i<NB_PIXELS;i++) 1409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall pixels[3*i]=rand()%250-125; 1429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall pixels[3*i+1]=rand()%250-125; 1439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall pixels[3*i+2]=rand()%250-125; 1449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glViewport(0,0,640,480); 1479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glMatrixMode(GL_PROJECTION); 1499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glLoadIdentity(); 1509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glOrtho(-100,100,-100,100,-500,500); 1519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glMatrixMode(GL_MODELVIEW); 1539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glLoadIdentity(); 1549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glEnable(GL_DEPTH_TEST); 1569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glDisable(GL_TEXTURE_2D); 1579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glEnable(GL_BLEND); 1589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 1599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glClearColor(0.0f,0.0f,0.0f,0.0f); 1619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); 1629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glEnable(GL_POINT_SMOOTH); 1649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glHint(GL_POINT_SMOOTH_HINT,GL_NICEST); 1659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glPointSize(5.0f); 1669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glEnable(GL_FOG); 1679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glFogf(GL_FOG_START,-500); 1689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glFogf(GL_FOG_END,500); 1699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glFogf(GL_FOG_DENSITY,0.005); 1709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall do 1729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); 1749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glRotatef(2.0,1.0,1.0,1.0); 1769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glRotatef(1.0,0.0,1.0,1.0); 1779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glColor4ub(255,255,255,255); 1799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glBegin(GL_POINTS); 1809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall for(i=0;i<NB_PIXELS;i++) 1819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glVertex3f(pixels[3*i],pixels[3*i+1],pixels[3*i+2]); 1839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall f.glEnd(); 1859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_GL_SwapBuffers(); 1869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall while(SDL_PollEvent(&event)) 1889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if(event.type & SDL_KEYDOWN) 1909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall done=1; 1919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_Delay(20); 1949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall while(!done); 1969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_Quit(); 1989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 1999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else /* HAVE_OPENGL */ 2029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint main(int argc, char *argv[]) 2049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 2059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall printf("No OpenGL support on this system\n"); 2069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 1; 2079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* HAVE_OPENGL */ 210