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remove obsolete state

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git-svn-id: http://skia.googlecode.com/svn/trunk@62 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@android.com 2009-01-12 16:00:23 +00:00
parent 5c80ea17d4
commit 2e86178f2b
2 changed files with 0 additions and 16 deletions
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14
src/core/SkBitmapProcState.cpp
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@ -333,20 +333,6 @@ bool SkBitmapProcState::chooseProcs(const SkMatrix& inv, const SkPaint& paint) {
fInvSx = SkScalarToFixed(m->getScaleX());
fInvSy = SkScalarToFixed(m->getScaleY());
fInvKy = SkScalarToFixed(m->getSkewY());
fInvTxPlusHalf = SkScalarToFixed(m->getTranslateX()) + (fInvSx >> 1);
fInvTyPlusHalf = SkScalarToFixed(m->getTranslateY()) + (fInvSy >> 1);
/* the -1 keeps us symetric with general policy for rounding, which is
(x + 1/2) >> 16. This sends exact halves to the next large pixel
e.g. x==3.5, round(x) == 4. However, our state is working with the
inverse matrix, and so to match the result of "normal" rounding, we
subtract 1 so that we in effect behave the same at the half-way point.
To compare, try drawing a bitmap with y == exact-half using the sprite
blitters and with us. Without the -1, we will draw the colors a whole
pixel shifted up (yikes).
*/
fInvTxPlusHalf -= 1;
fInvTyPlusHalf -= 1;
fAlphaScale = SkAlpha255To256(paint.getAlpha());

2
src/core/SkBitmapProcState.h
View File

@ -61,8 +61,6 @@ struct SkBitmapProcState {
SkMatrix::MapXYProc fInvProc; // chooseProcs
SkFixed fInvSx, fInvSy; // chooseProcs
SkFixed fInvKy; // chooseProcs
SkFixed fInvTxPlusHalf; // chooseProcs
SkFixed fInvTyPlusHalf; // chooseProcs
uint16_t fAlphaScale; // chooseProcs
uint8_t fInvType; // chooseProcs
uint8_t fTileModeX; // CONSTRUCTOR