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fxconv: "p4" and "p8" now select best new format

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Instead of p8 being the old p8 (which now doesn't display anymore!) and
p4 being p4_rgb565a.
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Lephenixnoir 2022-05-07 12:46:30 +01:00
parent 6788a7b5fe
commit 6d2dcea900
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GPG key ID: 1BBA026E13FC0495
1 changed files with 19 additions and 11 deletions
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30
fxconv/fxconv.py
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@ -114,20 +114,16 @@ CG_PROFILES = [
# 16-bit RGB565 and RGB565 with alpha
CgProfile(0x0, "rgb565", False),
CgProfile(0x1, "rgb565a", True),
# 8-bit palette for RGB565 and RGB565A (supported by Azur only)
# 8-bit palette for RGB565 and RGB565A
CgProfile(0x4, "p8_rgb565", False),
CgProfile(0x5, "p8_rgb565a", True),
# 4-bit palette for RGB565 and RGB565A (supported by Azur only)
# 4-bit palette for RGB565 and RGB565A
CgProfile(0x6, "p4_rgb565", False),
CgProfile(0x3, "p4_rgb565a", True),
# Original names for RGB565 and RGB565A
CgProfile(0x0, "r5g6b5", False),
CgProfile(0x1, "r5g6b5a", True),
# The original 8-bit palette mode of bopti (inferior to the other P8 modes)
CgProfile(0x2, "p8", True),
# The original 4-bit palette mode of bopti (same as P4_RGB565A)
CgProfile(0x3, "p4", True),
]
# Libimg flags
@ -541,15 +537,18 @@ def convert_bopti_cg(input, params):
profile = CgProfile.find(name)
elif name.startswith("p"):
if name in ["p8_rgb565", "p8_rgb565a"]:
if name.startswith("p8"):
trim_palette = True
palette_base = 0x80
else:
color_count = 256
elif name.startswith("p4"):
trim_palette = False
palette_base = 0x00
color_count = 16
else:
raise FxconvError(f"unknown palette format {profile}")
# Encoded the image into 16-bit with a palette of 16 or 256 entries
color_count = 1 << int(name[1])
# Encode the image into 16-bit with a palette of 16 or 256 entries
encoded, palette, alpha = r5g6b5(img, color_count=color_count,
trim_palette=trim_palette, palette_base=palette_base)
@ -559,8 +558,17 @@ def convert_bopti_cg(input, params):
else:
raise FxconvError(f"unknown color profile '{name}'")
# Resolve "p8" and "p4" to their optimal variation
if name == "p8":
name = "p8_rgb565" if alpha is None else "p8_rgb565a"
profile = CgProfile.find(name)
elif name == "p4":
name = "p4_rgb565" if alpha is None else "p4_rgb565a"
profile = CgProfile.find(name)
if alpha is not None and not profile.supports_alpha:
raise FxconvError(f"'{input}' has transparency; use rgb565a, p8 or p4")
raise FxconvError(f"'{input}' has transparency; use rgb565a, " +
"p8_rgb565a or p4_rgb565a")
header = bytes()
header += u16(profile.id)