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Test about using numpy to alloccate buffer

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This commit is contained in:
jaseg 2014-03-09 02:00:32 +01:00
parent c61ed12668
commit ddb77d4209
1 changed files with 4 additions and 2 deletions
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6
host/server.py
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@ -41,12 +41,13 @@ def compute_text_bounds(text):
return textw.value, texth.value
def render_text(text, offset):
cbuf = create_string_buffer(FRAME_SIZE*sizeof(COLOR))
frame = np.ndarray(shape=(DISPLAY_WIDTH, DISPLAY_HEIGHT, 4), dtype=np.uint8)
cbuf = frame.ctypes.data_as(POINTER(c_uint8))
textbytes = bytes(str(text), 'UTF-8')
res = bdf.framebuffer_render_text(textbytes, unifont, cbuf, DISPLAY_WIDTH, DISPLAY_HEIGHT, offset)
if res:
raise ValueError('Invalid text')
return np.ctypeslib.as_array(cast(cbuf, POINTER(c_uint8)), shape=(DISPLAY_WIDTH, DISPLAY_HEIGHT, 4))
return frame
printlock = threading.Lock()
@ -160,6 +161,7 @@ if __name__ == '__main__':
renderer = userver
else:
sendframe(next(defaulttexts))
#printframe(next(defaulttexts))
continue
for frame in renderer:
sendframe(frame)