public void unlockSurface() {
if (hdc == 0) {
throw new GLException("Surface already unlocked");
}
long startTime = 0;
if (PROFILING) {
startTime = System.currentTimeMillis();
}
ds.FreeDrawingSurfaceInfo(dsi);
ds.Unlock();
JAWT.getJAWT().FreeDrawingSurface(ds);
ds = null;
dsi = null;
win32dsi = null;
hdc = 0;
if (PROFILING) {
long endTime = System.currentTimeMillis();
profilingUnlockSurfaceTime += (endTime - startTime);
int ticks = PROFILING_TICKS;
if (++profilingUnlockSurfaceTicks == ticks) {
System.err.println(
"UnlockSurface calls: "
+ profilingUnlockSurfaceTime
+ " ms / "
+ ticks
+ " calls ("
+ ((float) profilingUnlockSurfaceTime / (float) ticks)
+ " ms/call)");
profilingUnlockSurfaceTime = 0;
profilingUnlockSurfaceTicks = 0;
}
}
}
public int lockSurface() throws GLException {
if (!realized) {
return LOCK_SURFACE_NOT_READY;
}
if (hdc != 0) {
throw new GLException("Surface already locked");
}
long startTime = 0;
if (PROFILING) {
startTime = System.currentTimeMillis();
}
ds = JAWT.getJAWT().GetDrawingSurface(component);
if (ds == null) {
// Widget not yet realized
return LOCK_SURFACE_NOT_READY;
}
int res = ds.Lock();
if ((res & JAWTFactory.JAWT_LOCK_ERROR) != 0) {
throw new GLException("Unable to lock surface");
}
// See whether the surface changed and if so destroy the old
// OpenGL context so it will be recreated (NOTE: removeNotify
// should handle this case, but it may be possible that race
// conditions can cause this code to be triggered -- should test
// more)
int ret = LOCK_SUCCESS;
if ((res & JAWTFactory.JAWT_LOCK_SURFACE_CHANGED) != 0) {
ret = LOCK_SURFACE_CHANGED;
}
dsi = ds.GetDrawingSurfaceInfo();
if (dsi == null) {
// Widget not yet realized
ds.Unlock();
JAWT.getJAWT().FreeDrawingSurface(ds);
ds = null;
return LOCK_SURFACE_NOT_READY;
}
win32dsi = (JAWT_Win32DrawingSurfaceInfo) dsi.platformInfo();
hdc = win32dsi.hdc();
if (hdc == 0) {
// Widget not yet realized
ds.FreeDrawingSurfaceInfo(dsi);
ds.Unlock();
JAWT.getJAWT().FreeDrawingSurface(ds);
ds = null;
dsi = null;
win32dsi = null;
return LOCK_SURFACE_NOT_READY;
}
if (!pixelFormatChosen) {
try {
choosePixelFormat(true);
setPixelFormatFailCount = 0;
} catch (RuntimeException e) {
// Workaround for problems seen on Intel 82855 cards in particular
// Make it look like the lockSurface() call didn't succeed
unlockSurface();
if (e instanceof GLException) {
if (++setPixelFormatFailCount == MAX_SET_PIXEL_FORMAT_FAIL_COUNT) {
setPixelFormatFailCount = 0;
throw e;
}
return LOCK_SURFACE_NOT_READY;
} else {
// Probably a user error in the GLCapabilitiesChooser or similar.
// Don't propagate non-GLExceptions out because calling code
// expects to catch only that exception type
throw new GLException(e);
}
}
}
if (PROFILING) {
long endTime = System.currentTimeMillis();
profilingLockSurfaceTime += (endTime - startTime);
int ticks = PROFILING_TICKS;
if (++profilingLockSurfaceTicks == ticks) {
System.err.println(
"LockSurface calls: "
+ profilingLockSurfaceTime
+ " ms / "
+ ticks
+ " calls ("
+ ((float) profilingLockSurfaceTime / (float) ticks)
+ " ms/call)");
profilingLockSurfaceTime = 0;
profilingLockSurfaceTicks = 0;
}
}
return ret;
}
