67 lines
1.7 KiB
Python
67 lines
1.7 KiB
Python
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from __future__ import print_function, division
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import numpy as np
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from crc8 import crc8
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def saveAsPrg(fn,address,data):
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fo=open(fn,"wb")
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header=np.array((address&255,address/256),np.uint8).tostring()
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fo.write(header)
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fo.write(data)
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fo.close()
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def debmp(img):
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print("img.shape=",img.shape)
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tiles=np.reshape(np.transpose(np.reshape(img,(25,8,40,8)),(0,2,1,3)),(1000,64))
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bmp=np.zeros((1000,8),np.uint8)
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vm=np.zeros((1000,),np.uint8)
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for i in range(1000):
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ti=tiles[i]
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palette=(list(set(list(ti)))+[0,0])[:2]
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palette.sort()
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if palette[1]&1==0:
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palette.reverse()
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bits=np.equal(ti,palette[1])*1
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bmp[i]=np.sum(np.reshape(bits,(8,8))*[128,64,32,16,8,4,2,1],axis=1)
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vm[i]=palette[1]*16+palette[0]
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return bmp,vm
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j,i=np.indices((200,320))
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ci=( ((j-183.0)**2+(i-30.5)**2)**.5/5.0+0.5).astype(np.int)%64
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di=((np.arange(64)+62^1)+3)//4%16
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im=di[ci]
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sx=8
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sy=80
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w=304
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bmp_c,vm_c=debmp(im)
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im[sy :,sx:][:8,:w]=(lambda i,j: (((np.pi*(j+4))**(i/12.0+1.3))%2).astype(np.int))(*np.indices((8,w)))+11
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im[sy+8:,sx:][:8,:w]=(lambda i,j: (((np.pi*(j+4))**(i/11.0+1.4))%2).astype(np.int))(*np.indices((8,w)))+11
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bmp,vm=debmp(im)
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mem=np.zeros((1024*9),np.uint8)
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mem[:8000]=bmp.flat
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mem[8192:9192]=vm.flat
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mem[-1]=crc8(mem[:-1])
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print("crc8(mem[:-1])=",crc8(mem[:-1]))
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print("crc8(mem) =",crc8(mem))
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saveAsPrg("bmp.prg",0x4000,mem.tostring())
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saveAsPrg("bmp0.prg",0x4000,mem[:0x1000].tostring())
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saveAsPrg("bmp1.prg",0x5000,mem[0x1000:].tostring())
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mem[:8000]=bmp_c.flat
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mem[8192:9192]=vm_c.flat
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mem[-1]=crc8(mem[:-1])
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c0=sx//8+40*(sy//8)
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a0=c0*8
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saveAsPrg("bmp_c.prg",0x4000+a0,mem[a0:].tostring())
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