Cool_Tools/bemaniutils
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Better 1555/565/4444 color extraction that scales colors to full 8-bit range.

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This commit is contained in:
Jennifer Taylor 2020-12-21 23:40:43 +00:00
parent 47330ca37d
commit 6768b1417f
1 changed files with 25 additions and 0 deletions
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25
bemani/utils/afputils.py
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@ -585,9 +585,17 @@ class AFPFile:
f"{self.endian}H",
raw_data[(64 + (i * 2)):(66 + (i * 2))],
)[0]
# Extract the raw values
red = ((pixel >> 0) & 0x1F) << 3
green = ((pixel >> 5) & 0x3F) << 2
blue = ((pixel >> 11) & 0x1F) << 3
# Scale the colors so they fill the entire 8 bit range.
red = red | (red >> 5)
green = green | (green >> 6)
blue = blue | (blue >> 5)
newdata.append(
struct.pack("<BBB", blue, green, red)
)
@ -614,10 +622,18 @@ class AFPFile:
f"{self.endian}H",
raw_data[(64 + (i * 2)):(66 + (i * 2))],
)[0]
# Extract the raw values
alpha = 255 if ((pixel >> 15) & 0x1) != 0 else 0
red = ((pixel >> 0) & 0x1F) << 3
green = ((pixel >> 5) & 0x1F) << 3
blue = ((pixel >> 10) & 0x1F) << 3
# Scale the colors so they fill the entire 8 bit range.
red = red | (red >> 5)
green = green | (green >> 5)
blue = blue | (blue >> 5)
newdata.append(
struct.pack("<BBBB", blue, green, red, alpha)
)
@ -674,10 +690,19 @@ class AFPFile:
f"{self.endian}H",
raw_data[(64 + (i * 2)):(66 + (i * 2))],
)[0]
# Extract the raw values
blue = ((pixel >> 0) & 0xF) << 4
green = ((pixel >> 4) & 0xF) << 4
red = ((pixel >> 8) & 0xF) << 4
alpha = ((pixel >> 12) & 0xF) << 4
# Scale the colors so they fill the entire 8 bit range.
red = red | (red >> 4)
green = green | (green >> 4)
blue = blue | (blue >> 4)
alpha = alpha | (alpha >> 4)
newdata.append(
struct.pack("<BBBB", red, green, blue, alpha)
)