Author: Lars Wassermann <lars.wasserm...@gmail.com>
Branch:
Changeset: r291:85602aa57b8f
Date: 2013-04-17 17:08 +0200
http://bitbucket.org/pypy/lang-smalltalk/changeset/85602aa57b8f/
Log: identified error of maximizing/scrolling and took some first steps
to alleviate it
diff --git a/BitBltSim.19.cs b/BitBltSim.19.cs
--- a/BitBltSim.19.cs
+++ b/BitBltSim.19.cs
@@ -165,23 +165,53 @@
!BitBlt methodsFor: 'simulation' stamp: 'tfel 3/17/2013 16:17'!
merge: srcWord with: dstWord
- "These are the 16 combination rules."
- combinationRule = 0 ifTrue: [^ 0].
- combinationRule = 1 ifTrue: [^ srcWord bitAnd: dstWord].
- combinationRule = 2 ifTrue: [^ srcWord bitAnd: dstWord bitInvert32].
- combinationRule = 3 ifTrue: [^ srcWord].
- combinationRule = 4 ifTrue: [^ srcWord bitInvert32 bitAnd: dstWord].
- combinationRule = 5 ifTrue: [^ dstWord].
- combinationRule = 6 ifTrue: [^ srcWord bitXor: dstWord].
- combinationRule = 7 ifTrue: [^ srcWord bitOr: dstWord].
- combinationRule = 8 ifTrue: [^ srcWord bitInvert32 bitAnd: dstWord
bitInvert32].
- combinationRule = 9 ifTrue: [^ srcWord bitInvert32 bitXor: dstWord].
- combinationRule = 10 ifTrue: [^ dstWord bitInvert32].
- combinationRule = 11 ifTrue: [^ srcWord bitOr: dstWord bitInvert32].
- combinationRule = 12 ifTrue: [^ srcWord bitInvert32].
- combinationRule = 13 ifTrue: [^ srcWord bitInvert32 bitOr: dstWord].
- combinationRule = 14 ifTrue: [^ srcWord bitInvert32 bitOr: dstWord
bitInvert32].
- combinationRule = 15 ifTrue: [^ dstWord]! !
+
+ combinationRule < 16
+ ifTrue: [ "These are the 16 basic combination rules."
+ combinationRule = 0 ifTrue: [^ 0].
+ combinationRule = 1 ifTrue: [^ srcWord bitAnd: dstWord].
+ combinationRule = 2 ifTrue: [^ srcWord bitAnd: dstWord
bitInvert32].
+ combinationRule = 3 ifTrue: [^ srcWord].
+ combinationRule = 4 ifTrue: [^ srcWord bitInvert32
bitAnd: dstWord].
+ combinationRule = 5 ifTrue: [^ dstWord].
+ combinationRule = 6 ifTrue: [^ srcWord bitXor: dstWord].
+ combinationRule = 7 ifTrue: [^ srcWord bitOr: dstWord].
+ combinationRule = 8 ifTrue: [^ srcWord bitInvert32
bitAnd: dstWord bitInvert32].
+ combinationRule = 9 ifTrue: [^ srcWord bitInvert32
bitXor: dstWord].
+ combinationRule = 10 ifTrue: [^ dstWord bitInvert32].
+ combinationRule = 11 ifTrue: [^ srcWord bitOr: dstWord
bitInvert32].
+ combinationRule = 12 ifTrue: [^ srcWord bitInvert32].
+ combinationRule = 13 ifTrue: [^ srcWord bitInvert32
bitOr: dstWord].
+ combinationRule = 14 ifTrue: [^ srcWord bitInvert32
bitOr: dstWord bitInvert32].
+ combinationRule = 15 ifTrue: [^ dstWord].]
+ ifFalse: [ "These are newer combination rules.
(BitBltSimulation class>>#initializeRuleTable)"
+ combinationRule = 16 ifTrue: [^ dstWord]. "unused - was
old paint"
+ combinationRule = 17 ifTrue: [^ dstWord]. "unused - was
old mask"
+ combinationRule = 18 ifTrue: [^ dstWord]. "addWord"
+ combinationRule = 19 ifTrue: [^ dstWord]. "subWord"
+ combinationRule = 20 ifTrue: [^ dstWord]. "rgbAdd"
+ combinationRule = 21 ifTrue: [^ dstWord]. "rgbSub"
+ combinationRule = 22 ifTrue: [^ dstWord]. "OLDrgbDiff"
+ combinationRule = 23 ifTrue: [^ dstWord].
"OLDtallyIntoMap"
+ combinationRule = 24 ifTrue: [^ dstWord]. "alphaBlend"
+ combinationRule = 25 ifTrue: [^ dstWord]. "pixPaint"
+ combinationRule = 26 ifTrue: [^ dstWord]. "pixMask"
+ combinationRule = 27 ifTrue: [^ dstWord]. "rgbMax"
+ combinationRule = 28 ifTrue: [^ dstWord]. "rgbMin"
+ combinationRule = 29 ifTrue: [^ dstWord]. "rgbMinInvert"
+ combinationRule = 30 ifTrue: [^ dstWord].
"alphaBlendConst"
+ combinationRule = 31 ifTrue: [^ dstWord].
"alphaPaintConst"
+ combinationRule = 32 ifTrue: [^ dstWord]. "rgbDiff"
+ combinationRule = 33 ifTrue: [^ dstWord]. "tallyIntoMap"
+ combinationRule = 34 ifTrue: [^ dstWord].
"alphaBlendScaled"
+ combinationRule = 35 ifTrue: [^ dstWord]. "unused here
- only used by FXBlt"
+ combinationRule = 36 ifTrue: [^ dstWord]. "unused here
- only used by FXBlt"
+ combinationRule = 37 ifTrue: [^ dstWord]. "rgbMul"
+ combinationRule = 38 ifTrue: [^ dstWord]. "pixSwap"
+ combinationRule = 39 ifTrue: [^ dstWord]. "pixClear"
+ combinationRule = 40 ifTrue: [^ dstWord]. "fixAlpha"
+ combinationRule = 41 ifTrue: [^ dstWord].
"rgbComponentAlpha"].
+ self error: 'Combination Rule is not supported.'! !
!BitBlt methodsFor: 'simulation' stamp: 'tfel 3/15/2013 14:49'!
sanitizeInput
diff --git a/spyvm/primitives.py b/spyvm/primitives.py
--- a/spyvm/primitives.py
+++ b/spyvm/primitives.py
@@ -562,6 +562,10 @@
if not isinstance(w_rcvr, model.W_PointersObject) or w_rcvr.size() < 15:
raise PrimitiveFailedError
+ # only allow combinationRules 0-15
+ if interp.space.unwrap_positive_32bit_int(w_rcvr.fetch(interp.space, 3)) >
41:
+ raise PrimitiveFailedError
+
space = interp.space
trace = interp.trace
interp.trace = False
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