test/testdyngl.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 11 May 2006 08:09:16 +0000
changeset 1815 871090feb7ad
parent 1440 ae78374ac894
child 1662 782fd950bd46
child 1895 c121d94672cb
permissions -rw-r--r--
Fixed building with CodeWarrior on MacOS Classic
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     1
/*
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     2
 * Small SDL example to demonstrate dynamically loading 
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     3
 * OpenGL lib and functions
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     4
 *
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     5
 * (FYI it was supposed to look like snow in the wind or something...)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     6
 *
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     7
 * Compile with :
847
0afe0e38e02c *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 842
diff changeset
     8
 * gcc testdyngl.c `sdl-config --libs --cflags` -o testdyngl -DHAVE_OPENGL
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     9
 *
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    10
 * You can specify a different OpenGL lib on the command line, i.e. :
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    11
 * ./testdyngl  /usr/X11R6/lib/libGL.so.1.2
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    12
 * or
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    13
 * ./testdyngl  /usr/lib/libGL.so.1.0.4496
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    14
 *
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    15
 */
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    16
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    17
#include <stdio.h>
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    18
#include <stdlib.h>
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    19
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    20
#include "SDL.h"
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    21
1815
871090feb7ad Fixed building with CodeWarrior on MacOS Classic
Sam Lantinga <slouken@libsdl.org>
parents: 1440
diff changeset
    22
#ifdef __MACOS__
871090feb7ad Fixed building with CodeWarrior on MacOS Classic
Sam Lantinga <slouken@libsdl.org>
parents: 1440
diff changeset
    23
#define HAVE_OPENGL
871090feb7ad Fixed building with CodeWarrior on MacOS Classic
Sam Lantinga <slouken@libsdl.org>
parents: 1440
diff changeset
    24
#endif
871090feb7ad Fixed building with CodeWarrior on MacOS Classic
Sam Lantinga <slouken@libsdl.org>
parents: 1440
diff changeset
    25
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    26
#ifdef HAVE_OPENGL
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    27
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    28
#include "SDL_opengl.h"
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    29
1151
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
    30
/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
    31
static void quit(int rc)
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
    32
{
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
    33
	SDL_Quit();
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
    34
	exit(rc);
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
    35
}
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
    36
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    37
void* get_funcaddr(const char* p)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    38
{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    39
	void* f=SDL_GL_GetProcAddress(p);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    40
	if (f)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    41
	{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    42
		return f;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    43
	}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    44
	else
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    45
	{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    46
		printf("Unable to get function pointer for %s\n",p);
1151
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
    47
		quit(1);
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    48
	}
1439
4d3bb026cd16 Fixed warnings in -pedantic mode
Sam Lantinga <slouken@libsdl.org>
parents: 1436
diff changeset
    49
	return NULL;
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    50
}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    51
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    52
typedef struct
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    53
{
885
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    54
	void(APIENTRY*glBegin)(GLenum);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    55
	void(APIENTRY*glEnd)();
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    56
	void(APIENTRY*glVertex3f)(GLfloat, GLfloat, GLfloat);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    57
	void(APIENTRY*glClearColor)(GLfloat, GLfloat, GLfloat, GLfloat);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    58
	void(APIENTRY*glClear)(GLbitfield);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    59
	void(APIENTRY*glDisable)(GLenum);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    60
	void(APIENTRY*glEnable)(GLenum);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    61
	void(APIENTRY*glColor4ub)(GLubyte,GLubyte,GLubyte,GLubyte);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    62
	void(APIENTRY*glPointSize)(GLfloat);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    63
	void(APIENTRY*glHint)(GLenum,GLenum);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    64
	void(APIENTRY*glBlendFunc)(GLenum,GLenum);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    65
	void(APIENTRY*glMatrixMode)(GLenum);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    66
	void(APIENTRY*glLoadIdentity)();
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    67
	void(APIENTRY*glOrtho)(GLdouble,GLdouble,GLdouble,GLdouble,GLdouble,GLdouble);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    68
	void(APIENTRY*glRotatef)(GLfloat,GLfloat,GLfloat,GLfloat);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    69
	void(APIENTRY*glViewport)(GLint,GLint,GLsizei,GLsizei);
9f6ad2286011 Date: Wed, 28 Apr 2004 16:52:41 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 847
diff changeset
    70
	void(APIENTRY*glFogf)(GLenum,GLfloat);
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    71
}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    72
glfuncs;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    73
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    74
void init_glfuncs(glfuncs* f)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    75
{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    76
	f->glBegin=get_funcaddr("glBegin");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    77
	f->glEnd=get_funcaddr("glEnd");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    78
	f->glVertex3f=get_funcaddr("glVertex3f");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    79
	f->glClearColor=get_funcaddr("glClearColor");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    80
	f->glClear=get_funcaddr("glClear");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    81
	f->glDisable=get_funcaddr("glDisable");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    82
	f->glEnable=get_funcaddr("glEnable");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    83
	f->glColor4ub=get_funcaddr("glColor4ub");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    84
	f->glPointSize=get_funcaddr("glPointSize");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    85
	f->glHint=get_funcaddr("glHint");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    86
	f->glBlendFunc=get_funcaddr("glBlendFunc");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    87
	f->glMatrixMode=get_funcaddr("glMatrixMode");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    88
	f->glLoadIdentity=get_funcaddr("glLoadIdentity");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    89
	f->glOrtho=get_funcaddr("glOrtho");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    90
	f->glRotatef=get_funcaddr("glRotatef");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    91
	f->glViewport=get_funcaddr("glViewport");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    92
	f->glFogf=get_funcaddr("glFogf");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    93
}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    94
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    95
#define NB_PIXELS 1000
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    96
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    97
int main(int argc,char *argv[])
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    98
{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    99
	glfuncs f;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   100
	int i;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   101
	SDL_Event event;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   102
	int done=0;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   103
	GLfloat pixels[NB_PIXELS*3];
1440
ae78374ac894 Passing a NULL GL library does the right thing nowadays.
Sam Lantinga <slouken@libsdl.org>
parents: 1439
diff changeset
   104
	const char *gl_library = NULL; /* Use the default GL library */
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1386
diff changeset
   105
842
0eec9985767d Load the correct library on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 839
diff changeset
   106
	if (argv[1]) {
0eec9985767d Load the correct library on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 839
diff changeset
   107
		gl_library = argv[1];
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   108
	}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   109
	
842
0eec9985767d Load the correct library on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 839
diff changeset
   110
	if (SDL_Init(SDL_INIT_VIDEO)<0)
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   111
	{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   112
		printf("Unable to init SDL : %s\n",SDL_GetError());
1151
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
   113
		return(1);
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   114
	}
990
8e20c48a9c13 Restore everything when a function pointer is NULL
Patrice Mandin <patmandin@gmail.com>
parents: 910
diff changeset
   115
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   116
	if (SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1)<0)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   117
	{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   118
		printf("Unable to set GL attribute : %s\n",SDL_GetError());
1151
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
   119
		quit(1);
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   120
	}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   121
	
842
0eec9985767d Load the correct library on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 839
diff changeset
   122
	if (SDL_GL_LoadLibrary(gl_library)<0)
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   123
	{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   124
		printf("Unable to dynamically open GL lib : %s\n",SDL_GetError());
1151
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
   125
		quit(1);
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   126
	}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   127
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   128
	if (SDL_SetVideoMode(640,480,0,SDL_OPENGL)==NULL)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   129
	{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   130
		printf("Unable to open video mode : %s\n",SDL_GetError());
1151
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 990
diff changeset
   131
		quit(1);
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   132
	}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   133
910
4ab6d1fd028f Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 885
diff changeset
   134
	/* Set the window manager title bar */
4ab6d1fd028f Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 885
diff changeset
   135
	SDL_WM_SetCaption( "SDL Dynamic OpenGL Loading Test", "testdyngl" );
4ab6d1fd028f Date: Sat, 26 Jun 2004 14:58:42 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 885
diff changeset
   136
839
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   137
	init_glfuncs(&f);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   138
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   139
	for(i=0;i<NB_PIXELS;i++)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   140
	{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   141
		pixels[3*i]=rand()%250-125;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   142
		pixels[3*i+1]=rand()%250-125;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   143
		pixels[3*i+2]=rand()%250-125;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   144
	}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   145
	
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   146
	f.glViewport(0,0,640,480);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   147
	
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   148
	f.glMatrixMode(GL_PROJECTION);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   149
	f.glLoadIdentity();
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   150
	f.glOrtho(-100,100,-100,100,-500,500);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   151
	
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   152
	f.glMatrixMode(GL_MODELVIEW);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   153
	f.glLoadIdentity();
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   154
	
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   155
	f.glEnable(GL_DEPTH_TEST);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   156
	f.glDisable(GL_TEXTURE_2D);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   157
	f.glEnable(GL_BLEND);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   158
	f.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   159
	
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   160
	f.glClearColor(0.0f,0.0f,0.0f,0.0f);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   161
	f.glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   162
	
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   163
	f.glEnable(GL_POINT_SMOOTH);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   164
	f.glHint(GL_POINT_SMOOTH_HINT,GL_NICEST);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   165
	f.glPointSize(5.0f);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   166
	f.glEnable(GL_FOG);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   167
	f.glFogf(GL_FOG_START,-500);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   168
	f.glFogf(GL_FOG_END,500);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   169
	f.glFogf(GL_FOG_DENSITY,0.005);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   170
	
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   171
	do
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   172
	{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   173
		f.glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   174
		
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   175
		f.glRotatef(2.0,1.0,1.0,1.0);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   176
		f.glRotatef(1.0,0.0,1.0,1.0);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   177
		
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   178
		f.glColor4ub(255,255,255,255);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   179
		f.glBegin(GL_POINTS);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   180
		for(i=0;i<NB_PIXELS;i++)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   181
		{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   182
			f.glVertex3f(pixels[3*i],pixels[3*i+1],pixels[3*i+2]);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   183
		}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   184
		f.glEnd();
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   185
		SDL_GL_SwapBuffers();
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   186
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   187
		while(SDL_PollEvent(&event))
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   188
		{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   189
			if(event.type & SDL_KEYDOWN)
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   190
				done=1;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   191
		}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   192
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   193
		SDL_Delay(20);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   194
	}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   195
	while(!done);
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   196
	
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   197
	SDL_Quit();
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   198
	return 0;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   199
}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   200
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   201
#else /* HAVE_OPENGL */
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   202
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   203
int main(int argc, char *argv[])
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   204
{
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   205
	printf("No OpenGL support on this system\n");
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   206
	return 1;
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   207
}
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   208
7b255f0290da Added a test program for dynamically loading OpenGL
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   209
#endif /* HAVE_OPENGL */