diff options
Diffstat (limited to 'host/server.py')
| -rwxr-xr-x | host/server.py | 53 |
1 files changed, 40 insertions, 13 deletions
diff --git a/host/server.py b/host/server.py index c8e665a..70afdf9 100755 --- a/host/server.py +++ b/host/server.py @@ -1,14 +1,16 @@ #!/usr/bin/env python -from ctypes import CDLL, POINTER, c_void_p, Structure, c_uint8, c_size_t, cast +from ctypes import CDLL, POINTER, c_void_p, Structure, c_uint8, c_size_t, cast, addressof import numpy as np +from itertools import product from matelight import sendframe +from terminal import printframe class COLOR(Structure): - _fields_ = ('r', c_uint8), ('g', c_uint8), ('b', c_uint8), ('a', c_uint8) + _fields_ = [('r', c_uint8), ('g', c_uint8), ('b', c_uint8), ('a', c_uint8)] class FRAMEBUFFER(Structure): - _fields_ = ('data', POINTER(COLOR)), ('w', c_size_t), ('h', c_size_t) + _fields_ = [('data', POINTER(COLOR)), ('w', c_size_t), ('h', c_size_t)] bdf = CDLL('./libbdf.so') bdf.read_bdf_file.restype = c_void_p @@ -17,16 +19,41 @@ bdf.framebuffer_render_text.restype = POINTER(FRAMEBUFFER) unifont = bdf.read_bdf_file('unifont.bdf') def render_text(text): - assert unifont - fb = bdf.framebuffer_render_text(str(text), unifont) - fbd = fb.contents - buf = np.ctypeslib.as_array(cast(fbd.data, POINTER(c_uint8)), shape=(fbd.h, fbd.w, 4)) - # Set data pointer to NULL before freeing framebuffer struct to prevent free_framebuffer from also freeing the data - # buffer that is now used by numpy - fb.data = cast(c_void_p(), POINTER(COLOR)) - bdf.free_framebuffer(fb) - return buf + assert unifont + fb = bdf.framebuffer_render_text(bytes(str(text), 'UTF-8'), unifont) + fbd = fb.contents + print('FB STRUCT: w {} h {} memory location {:x}'.format(fbd.w, fbd.h, addressof(fbd.data.contents))) + print("TYPE:", type(fbd.data)) + casted = cast(fbd.data, POINTER(c_uint8)) + print("CASTED TYPE:" , type(casted)) + buf = np.ctypeslib.as_array(cast(fbd.data, POINTER(c_uint8)), shape=(fbd.h, fbd.w, 4)) + print('RAW DATA:') + alen = fbd.h*fbd.w +# for i in range(alen): +# c = fbd.data[i] +# print('{:x}'.format(addressof(c)), c.r, c.g, c.b) + print('BUF', buf.shape, buf.dtype) +# for x, y, z in product(range(fbd.h), range(fbd.w), range(4)): +# print(buf[x][y][z]) + + # Set data pointer to NULL before freeing framebuffer struct to prevent free_framebuffer from also freeing the data + # buffer that is now used by numpy + bdf.console_render_buffer(fb) + fbd.data = cast(c_void_p(), POINTER(COLOR)) + bdf.free_framebuffer(fb) + print('Rendered {} chars into a buffer of w {} h {} numpy buf {}'.format(len(text), fbd.w, fbd.h, buf.shape)) + return buf if __name__ == '__main__': - sendframe(render_text('test')); + fb = render_text('foobarbaz'); + print('buffer shape {} dtype {}'.format(fb.shape, fb.dtype)) +# import colorsys +# h, w, _ = fb.shape +# for x, y in product(range(w), range(h)): +# r,g,b = colorsys.hsv_to_rgb(x*0.03+y*0.05, 1, 1) +# fb[x][y] = (r,g,b,0) +# print(fb) + sendframe(fb) + #printframe(fb) + |