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https://gitlab.freedesktop.org/libfprint/libfprint.git
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be88884315
We ignored assertions happening on callbacks as they only raise exceptions that does not stop the execution. So ensure that this is happening in all the tests as synaptics was doing already
66 lines
1.7 KiB
Python
Executable File
66 lines
1.7 KiB
Python
Executable File
#!/usr/bin/python3
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import cairo
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import sys
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import traceback
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import gi
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gi.require_version('FPrint', '2.0')
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from gi.repository import FPrint, GLib
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# Exit with error on any exception, included those happening in async callbacks
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sys.excepthook = lambda *args: (traceback.print_exception(*args), sys.exit(1))
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if len(sys.argv) != 2:
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print("Please specify exactly one argument, the output location for the capture image")
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sys.exit(1)
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ctx = GLib.main_context_default()
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c = FPrint.Context()
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c.enumerate()
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devices = c.get_devices()
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d = devices[0]
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assert d.has_feature(FPrint.DeviceFeature.CAPTURE)
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assert d.has_feature(FPrint.DeviceFeature.IDENTIFY)
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assert d.has_feature(FPrint.DeviceFeature.VERIFY)
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assert not d.has_feature(FPrint.DeviceFeature.DUPLICATES_CHECK)
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assert not d.has_feature(FPrint.DeviceFeature.STORAGE)
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assert not d.has_feature(FPrint.DeviceFeature.STORAGE_LIST)
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assert not d.has_feature(FPrint.DeviceFeature.STORAGE_DELETE)
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assert not d.has_feature(FPrint.DeviceFeature.STORAGE_CLEAR)
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del devices
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d.open_sync()
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img = d.capture_sync(True)
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d.close_sync()
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del d
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del c
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width = img.get_width()
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height = img.get_height()
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c_img = cairo.ImageSurface(cairo.FORMAT_RGB24, width, height)
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c_rowstride = c_img.get_stride()
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buf = img.get_data()
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c_buf = c_img.get_data()
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for x in range(width):
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for y in range(height):
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# The upper byte is don't care, but the location depends on endianness,
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# so just set all of them.
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c_buf[y * c_rowstride + x * 4 + 0] = buf[y * width + x]
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c_buf[y * c_rowstride + x * 4 + 1] = buf[y * width + x]
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c_buf[y * c_rowstride + x * 4 + 2] = buf[y * width + x]
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c_buf[y * c_rowstride + x * 4 + 3] = buf[y * width + x]
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c_img.mark_dirty()
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c_img.write_to_png(sys.argv[1])
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