Author: Lars Wassermann <[email protected]>
Branch:
Changeset: r295:a284054344a3
Date: 2013-04-17 18:26 +0200
http://bitbucket.org/pypy/lang-smalltalk/changeset/a284054344a3/
Log: added more concrete rule for pixPaint (combinationRule 25) the
effect is still of though
diff --git a/BitBltSim.19.cs b/BitBltSim.19.cs
--- a/BitBltSim.19.cs
+++ b/BitBltSim.19.cs
@@ -141,7 +141,7 @@
ifTrue:
[prevWord _ prevWord bitAnd:
simSkewMask.
"XXX: Hack to work around
out-of-bounds access"
- thisWord := (simSourceIndex < 0 or:
[simSourceIndex >= simSourceBits size])
+ thisWord _ (simSourceIndex < 0 or:
[simSourceIndex >= simSourceBits size])
ifTrue:
[simSourceBits at: 1]
ifFalse:
[simSourceBits at: simSourceIndex + 1].
"pick up next word"
@@ -194,7 +194,7 @@
combinationRule = 22 ifTrue: [^ dstWord]. "OLDrgbDiff"
combinationRule = 23 ifTrue: [^ dstWord].
"OLDtallyIntoMap"
combinationRule = 24 ifTrue: [^ dstWord]. "alphaBlend"
- combinationRule = 25 ifTrue: [^ dstWord]. "pixPaint"
+ combinationRule = 25 ifTrue: [^ self pixPaint: srcWord
with: dstWord].
combinationRule = 26 ifTrue: [^ dstWord]. "pixMask"
combinationRule = 27 ifTrue: [^ dstWord]. "rgbMax"
combinationRule = 28 ifTrue: [^ dstWord]. "rgbMin"
@@ -213,6 +213,11 @@
combinationRule = 41 ifTrue: [^ dstWord].
"rgbComponentAlpha"].
self error: 'Combination Rule is not supported.'! !
+!BitBlt methodsFor: 'simulation' stamp: 'tfel 1/1/1981 00:00'!
+pixPaint: srcWord with: dstWord
+ srcWord = 0 ifTrue: [^ dstWord].
+ ^ srcWord bitOr: (dstWord bitAnd: srcWord bitInvert32)! !
+
!BitBlt methodsFor: 'simulation' stamp: 'tfel 3/15/2013 14:49'!
sanitizeInput
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