Tim Felgentreff uploaded a new version of VMMaker to project VM Maker: http://source.squeak.org/VMMaker/VMMaker-tfel.358.mcz
==================== Summary ====================
Name: VMMaker-tfel.358 Author: tfel Time: 11 February 2015, 1:43:59.319 pm UUID: b8cdfbbd-911c-2848-8a87-286f070bee95 Ancestors: VMMaker-dtl.357
Fix simulation of full world draw
=============== Diff against VMMaker-dtl.357 ===============
Item was changed: ----- Method: BitBltSimulation>>loadColorMap (in category 'interpreter interface') ----- loadColorMap "ColorMap, if not nil, must be longWords, and 2^N long, where N = sourceDepth for 1, 2, 4, 8 bits, or N = 9, 12, or 15 (3, 4, 5 bits per color) for 16 or 32 bits." | cmSize oldStyle oop cmOop | <inline: true> cmFlags := cmMask := cmBitsPerColor := 0. cmShiftTable := nil. cmMaskTable := nil. cmLookupTable := nil. cmOop := interpreterProxy fetchPointer: BBColorMapIndex ofObject: bitBltOop. cmOop = interpreterProxy nilObject ifTrue:[^true]. cmFlags := ColorMapPresent. "even if identity or somesuch - may be cleared later" oldStyle := false. (interpreterProxy isWords: cmOop) ifTrue:[ "This is an old-style color map (indexed only, with implicit RGBA conversion)" cmSize := interpreterProxy slotSizeOf: cmOop. cmLookupTable := interpreterProxy firstIndexableField: cmOop. oldStyle := true. - self cCode: '' inSmalltalk: - [self assert: cmLookupTable unitSize = 4]. ] ifFalse: [ "A new-style color map (fully qualified)" ((interpreterProxy isPointers: cmOop) and:[(interpreterProxy slotSizeOf: cmOop) >= 3]) ifFalse:[^false]. cmShiftTable := self loadColorMapShiftOrMaskFrom: (interpreterProxy fetchPointer: 0 ofObject: cmOop). cmMaskTable := self loadColorMapShiftOrMaskFrom: (interpreterProxy fetchPointer: 1 ofObject: cmOop). oop := interpreterProxy fetchPointer: 2 ofObject: cmOop. oop = interpreterProxy nilObject ifTrue:[cmSize := 0] ifFalse:[(interpreterProxy isWords: oop) ifFalse:[^false]. cmSize := (interpreterProxy slotSizeOf: oop). cmLookupTable := interpreterProxy firstIndexableField: oop]. cmFlags := cmFlags bitOr: ColorMapNewStyle. self cCode: '' inSmalltalk: [self assert: cmShiftTable unitSize = 4. self assert: cmMaskTable unitSize = 4. self assert: cmLookupTable unitSize = 4]. ]. (cmSize bitAnd: cmSize - 1) = 0 ifFalse:[^false]. cmMask := cmSize - 1. cmBitsPerColor := 0. cmSize = 512 ifTrue: [cmBitsPerColor := 3]. cmSize = 4096 ifTrue: [cmBitsPerColor := 4]. cmSize = 32768 ifTrue: [cmBitsPerColor := 5]. cmSize = 0 ifTrue:[cmLookupTable := nil. cmMask := 0] ifFalse:[cmFlags := cmFlags bitOr: ColorMapIndexedPart]. oldStyle "needs implicit conversion" ifTrue:[ self setupColorMasks]. "Check if colorMap is just identity mapping for RGBA parts" (self isIdentityMap: cmShiftTable with: cmMaskTable) ifTrue:[ cmMaskTable := nil. cmShiftTable := nil ] ifFalse:[ cmFlags := cmFlags bitOr: ColorMapFixedPart]. ^true!
Item was added: + ----- Method: BitBltSimulator>>halftoneAt: (in category 'simulation') ----- + halftoneAt: idx + + ^ halftoneForm at: (idx \ halftoneHeight * 4) + 1!
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