def getFrameAt(self, index):
if self.fImages.get(index, False) is not False:
return self.fImages[index]
rb = self.imageInfo.minRowBytes()
bmap = skia.Bitmap()
bmap.allocPixels(self.imageInfo)
reqFrame = self.fInfos[index].fRequiredFrame
opts = skia.Codec.Options()
opts.fFrameIndex = index
opts.fPriorFrame = reqFrame if reqFrame != index - 1 else skia.Codec.kNoFrame
if reqFrame != skia.Codec.kNoFrame:
pmap = skia.Pixmap()
if self.fImages.get(reqFrame, False):
self.fImages.get(reqFrame).readPixels(pmap, 0, 0)
bmap.writePixels(pmap)
result = self.decGif.getPixels(self.imageInfo, bmap.getPixels(),
bmap.rowBytes(), opts)
if result == skia.Codec.Result.kSuccess:
self.fImages[index] = skia.Image.MakeFromBitmap(bmap)
return self.fImages[index]
return False
def test_Bitmap_array_interface(color_type, shape, dtype):
from PIL import Image
bitmap = skia.Bitmap()
bitmap.allocPixels(
skia.ImageInfo.Make(16, 32, color_type, skia.kUnpremul_AlphaType))
assert not bitmap.isNull()
assert isinstance(Image.fromarray(bitmap), Image.Image)
def getFrameAt(self,index):
if self.fImages.get(index,False) != False:
return self.fImages[index]
rb = self.imageInfo.minRowBytes()
#Carefull with the lifetime of this
bmap = skia.Bitmap()
bmap.allocPixels(self.imageInfo)
opts = skia.Codec.Options()
opts.fFrameIndex = index
reqFrame = self.fInfos[index].fRequiredFrame
if reqFrame != skia.Codec.kNoFrame:
#copy image data from required frame
pmap = skia.Pixmap()
self.fImages[reqFrame].readPixels(pmap,0,0)
bmap.installPixels(pmap)
result = self.decGif.getPixels(self.imageInfo,bmap.getPixels(),bmap.rowBytes(),opts)
if result == skia.Codec.Result.kSuccess:
self.fImages[index] = skia.Image.MakeFromBitmap(bmap)
return self.fImages[index]
return False
def test_Bitmap_buffer_shape_dtype(color_type, shape, dtype):
bitmap = skia.Bitmap()
bitmap.allocPixels(
skia.ImageInfo.Make(16, 32, color_type, skia.kUnpremul_AlphaType))
assert not bitmap.isNull()
array = np.array(bitmap, copy=False)
assert array.shape == shape
assert array.dtype == dtype
def loadStaticFrame(self):
if self.fImages.get(0, False) is not False:
return self.fImages[0]
rb = self.imageInfo.minRowBytes()
bmap = skia.Bitmap()
bmap.allocPixels(self.imageInfo)
result = self.decGif.getPixels(self.imageInfo, bmap.getPixels(),
bmap.rowBytes())
if result == skia.Codec.Result.kSuccess:
self.fImages[0] = skia.Image.MakeFromBitmap(bmap)
return self.fImages[0]
return False
def test_Bitmap_init(args):
assert isinstance(skia.Bitmap(*args), skia.Bitmap)
def test_Bitmap_extractAlpha(bitmap):
dst = skia.Bitmap()
assert isinstance(bitmap.extractAlpha(dst), bool)
def test_Bitmap_extractSubset(bitmap):
dst = skia.Bitmap()
assert isinstance(bitmap.extractSubset(dst, skia.IRect(50, 50)), bool)
def test_Bitmap_allocN32Pixels():
bitmap = skia.Bitmap()
def test_Bitmap_tryAllocN32Pixels():
bitmap = skia.Bitmap()
assert isinstance(bitmap.tryAllocN32Pixels(100, 100, True), bool)
def test_Bitmap_allocPixelsFlags(info):
bitmap = skia.Bitmap()
bitmap.allocPixelsFlags(info, skia.Bitmap.kZeroPixels_AllocFlag)
def test_Bitmap_tryAllocPixelsFlags(info):
bitmap = skia.Bitmap()
assert isinstance(
bitmap.tryAllocPixelsFlags(info, skia.Bitmap.kZeroPixels_AllocFlag),
bool)
def bitmap(info):
bitmap = skia.Bitmap()
bitmap.allocPixels(info)
return bitmap
def test_Image_asLegacyBitmap(image):
bitmap = skia.Bitmap()
assert isinstance(image.asLegacyBitmap(bitmap), bool)
def bitmap():
yield skia.Bitmap()
def bitmap(info):
bitmap = skia.Bitmap()
bitmap.allocPixels(info)
assert not bitmap.isNull()
yield bitmap
32,
16,
), np.uint16),
])
def test_Bitmap_array_interface(color_type, shape, dtype):
from PIL import Image
bitmap = skia.Bitmap()
bitmap.allocPixels(
skia.ImageInfo.Make(16, 32, color_type, skia.kUnpremul_AlphaType))
assert not bitmap.isNull()
assert isinstance(Image.fromarray(bitmap), Image.Image)
@pytest.mark.parametrize('args', [
tuple(),
(skia.Bitmap(), ),
])
def test_Bitmap_init(args):
assert isinstance(skia.Bitmap(*args), skia.Bitmap)
def test_Bitmap_swap(bitmap):
other = skia.Bitmap()
bitmap.swap(other)
def test_Bitmap_pixmap(bitmap):
assert isinstance(bitmap.pixmap(), skia.Pixmap)
def test_Bitmap_info(bitmap):
def test_Surface_peekPixels(surface):
assert isinstance(surface.peekPixels(skia.Pixmap()), bool)
@pytest.mark.parametrize('args', [
(skia.Pixmap(), 0, 0),
(
skia.ImageInfo.MakeN32Premul(320, 240),
bytearray(240 * 320 * 4),
320 * 4,
),
(
skia.ImageInfo.MakeN32Premul(320, 240),
np.zeros((240, 320, 4), dtype=np.uint8),
),
(skia.Bitmap(), 0, 0),
])
def test_Surface_readPixels(surface, args):
assert isinstance(surface.readPixels(*args), bool)
def test_Surface_asyncRescaleAndReadPixels(surface):
info = skia.ImageInfo.MakeN32Premul(100, 100)
def assert_result(result):
assert isinstance(result, (type(None), skia.Surface.AsyncReadResult))
surface.asyncRescaleAndReadPixels(
info, (100, 100), skia.Surface.RescaleGamma.kSrc,
skia.kNone_FilterQuality, assert_result)
surface.flushAndSubmit()
def test_Image_MakeFromBitmap():
bitmap = skia.Bitmap()
bitmap.allocPixels(skia.ImageInfo().MakeN32Premul(100, 100))
assert isinstance(skia.Image.MakeFromBitmap(bitmap), skia.Image)
def test_Bitmap_swap(bitmap):
other = skia.Bitmap()
bitmap.swap(other)
