mpv/video/out/opengl/angle_dynamic.c

34 lines
787 B
C

#include <pthread.h>
#include <windows.h>
#define ANGLE_NO_ALIASES
#include "angle_dynamic.h"
#include "common/common.h"
#define ANGLE_DECL(NAME, VAR) \
VAR;
ANGLE_FNS(ANGLE_DECL)
static bool angle_loaded;
static pthread_once_t angle_load_once = PTHREAD_ONCE_INIT;
static void angle_do_load(void)
{
// Note: we let this handle "leak", as the functions remain valid forever.
HANDLE angle_dll = LoadLibraryW(L"LIBEGL.DLL");
if (!angle_dll)
return;
#define ANGLE_LOAD_ENTRY(NAME, VAR) \
MP_CONCAT(PFN_, NAME) = (void *)GetProcAddress(angle_dll, #NAME); \
if (!MP_CONCAT(PFN_, NAME)) return;
ANGLE_FNS(ANGLE_LOAD_ENTRY)
angle_loaded = true;
}
bool angle_load(void)
{
pthread_once(&angle_load_once, angle_do_load);
return angle_loaded;
}