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u_format: fix inv_swizzles generation
[mesa.git]
/
src
/
gallium
/
auxiliary
/
util
/
u_format_parse.py
diff --git
a/src/gallium/auxiliary/util/u_format_parse.py
b/src/gallium/auxiliary/util/u_format_parse.py
index 73a4bcb21000627c9b9bf6621b6302d235b2c5c0..3a39e5ba5242d72380823feeb6a53bf1acd52bae 100755
(executable)
--- a/
src/gallium/auxiliary/util/u_format_parse.py
+++ b/
src/gallium/auxiliary/util/u_format_parse.py
@@
-196,10
+196,11
@@
class Format:
def inv_swizzles(self):
'''Return an array[4] of inverse swizzle terms'''
def inv_swizzles(self):
'''Return an array[4] of inverse swizzle terms'''
+ '''Only pick the first matching value to avoid l8 getting blue and i8 getting alpha'''
inv_swizzle = [None]*4
for i in range(4):
swizzle = self.swizzles[i]
inv_swizzle = [None]*4
for i in range(4):
swizzle = self.swizzles[i]
- if swizzle < 4:
+ if swizzle < 4
and inv_swizzle[swizzle] == None
:
inv_swizzle[swizzle] = i
return inv_swizzle
inv_swizzle[swizzle] = i
return inv_swizzle