def testFunctions(self):
bytes_val = array.array("B", (0 for i in range(100 * 80 * 4)))
self.assertIsInstance(bytes_val, array.array)
self.assertEqual(len(bytes_val), 100 * 80 * 4)
ctx = Quartz.CGBitmapContextCreate(
bytes_val,
100,
80,
8,
400,
Quartz.CGColorSpaceCreateDeviceRGB(),
Quartz.kCGImageAlphaPremultipliedLast,
)
self.assertIsInstance(ctx, Quartz.CGContextRef)
buf = Quartz.CGBitmapContextGetData(ctx)
self.assertIsInstance(buf, objc.varlist)
self.assertIsInstance(buf[0], bytes)
self.assertEqual(Quartz.CGBitmapContextGetWidth(ctx), 100)
self.assertEqual(Quartz.CGBitmapContextGetHeight(ctx), 80)
self.assertEqual(Quartz.CGBitmapContextGetBitsPerComponent(ctx), 8)
self.assertEqual(Quartz.CGBitmapContextGetBitsPerPixel(ctx), 32)
self.assertEqual(Quartz.CGBitmapContextGetBytesPerRow(ctx), 400)
v = Quartz.CGBitmapContextGetColorSpace(ctx)
self.assertIsInstance(v, Quartz.CGColorSpaceRef)
v = Quartz.CGBitmapContextGetAlphaInfo(ctx)
self.assertIsInstance(v, int)
v = Quartz.CGBitmapContextGetBitmapInfo(ctx)
self.assertIsInstance(v, int)
img = Quartz.CGBitmapContextCreateImage(ctx)
self.assertIsInstance(img, Quartz.CGImageRef)
def myCGContextGetBitmapInfo(c):
if hasattr(Quartz, "CGBitmapContextGetBitmapInfo"):
return Quartz.CGBitmapContextGetBitmapInfo(c)
else:
return Quartz.CGBitmapContextGetAlphaInfo(c)