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Use dlsym to get glXGetProcAddress, only way to (hopefully) make it

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compile everywhere since the gl/glx headers are such a mess...


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16112 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2005-07-26 18:28:51 +00:00
parent 79347ed3f7
commit 58eab3c054
1 changed files with 27 additions and 6 deletions
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33
libvo/gl_common.c
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@ -201,7 +201,7 @@ static void *setNull(const GLubyte *s) {
return NULL;
}
static void *(*getProcAddress)(const GLubyte *procName);
static void *(*getProcAddress)(const GLubyte *procName) = NULL;
static void getFunctions() {
if (!getProcAddress)
@ -326,6 +326,26 @@ void releaseGlContext(int *vinfo, HGLRC *context) {
*context = 0;
}
#else
#if defined(__sun) || defined(__sgi)
extern void *dlopen(const char *, int);
#endif
extern void *dlsym(void *, const char *);
/**
* \brief find address of a linked function
* \param s name of function to find
* \return address of function or NULL if not found
*
* Copied from xine
*/
static void *getdladdr(const GLubyte *s) {
#if defined(__sun) || defined(__sgi)
static void *handle = dlopen(NULL, RTLD_LAZY);
return dlsym(handle, s);
#else
return dlsym(0, s);
#endif
}
/**
* \brief Returns the XVisualInfo associated with Window win.
* \param win Window whose XVisualInfo is returne.
@ -403,11 +423,12 @@ int setGlWindow(XVisualInfo **vinfo, GLXContext *context, Window win)
if (*vinfo)
XFree(*vinfo);
*vinfo = new_vinfo;
#ifdef GLX_ARB_get_proc_address
getProcAddress = (void *)glXGetProcAddressARB;
#else
getProcAddress = NULL;
#endif
if (!getProcAddress)
getProcAddress = getdladdr("glXGetProcAddress");
if (!getProcAddress)
getProcAddress = getdladdr("glXGetProcAddressARB");
if (!getProcAddress)
getProcAddress = getdladdr;
getFunctions();
// and inform that reinit is neccessary