a_dinosaur/modgen
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Working pattern data writer.

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a dinosaur
2018-08-15 04:44:56 +10:00
parent a1de9b7c0a
commit a968f61b09
1 changed files with 15 additions and 2 deletions
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17
modgen.py
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@@ -13,12 +13,12 @@ with open("out.mod", "wb") as fo:
fo.write(struct.pack("22s", "SMPL".encode('utf-8')))
fo.write(struct.pack(">H", 0)) # Sample length.
fo.write(struct.pack(">B", 8)) # Finetune.
fo.write(struct.pack(">B", 0)) # Finetune.
fo.write(struct.pack(">B", 64)) # Volume.
fo.write(struct.pack(">H", 0)) # Loop offset.
fo.write(struct.pack(">H", 0)) # Loop length.
fo.write(struct.pack(">B", 0)) # Song positions.
fo.write(struct.pack(">B", 1)) # Song positions.
fo.write(struct.pack(">B", 42)) # Obsolete.
# Pattern table.
@@ -27,3 +27,16 @@ with open("out.mod", "wb") as fo:
# 31 samples mode.
fo.write(struct.pack("4s", "M.K.".encode("ascii")))
# Pattern data.
for i in range(0, 1):
for r in range(0,64):
for c in range(0, 4):
period = 214;
effect = 0;
sample = 1;
div0 = (period & 0xFFF) | ((sample & 0xF0) * 256)
div1 = (effect & 0xFFF) | ((sample & 0xF) * 4096)
fo.write(struct.pack(">H", div0))
fo.write(struct.pack(">H", div1))