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add 'n' to tri-toggle bitmap-filter (LERP) on/off/neutral

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git-svn-id: http://skia.googlecode.com/svn/trunk@1344 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2011-05-17 15:32:04 +00:00
parent 16bab87a78
commit 176753aa6d
1 changed files with 14 additions and 5 deletions
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19
samplecode/SampleApp.cpp
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@ -122,7 +122,8 @@ static SkTriState cycle_tristate(SkTriState state) {
class FlagsDrawFilter : public SkDrawFilter {
public:
FlagsDrawFilter(SkTriState lcd, SkTriState aa) : fLCDState(lcd), fAAState(aa) {}
FlagsDrawFilter(SkTriState lcd, SkTriState aa, SkTriState filter) :
fLCDState(lcd), fAAState(aa), fFilterState(filter) {}
virtual void filter(SkPaint* paint, Type t) {
if (kText_Type == t && kUnknown_SkTriState != fLCDState) {
@ -131,11 +132,15 @@ public:
if (kUnknown_SkTriState != fAAState) {
paint->setAntiAlias(kTrue_SkTriState == fAAState);
}
if (kUnknown_SkTriState != fFilterState) {
paint->setFilterBitmap(kTrue_SkTriState == fFilterState);
}
}
private:
SkTriState fLCDState;
SkTriState fAAState;
SkTriState fFilterState;
};
//////////////////////////////////////////////////////////////////////////////
@ -298,6 +303,7 @@ private:
SkTriState fLCDState;
SkTriState fAAState;
SkTriState fFilterState;
unsigned fFlipAxis;
int fScrollTestX, fScrollTestY;
@ -850,10 +856,7 @@ void SampleWindow::beforeChild(SkView* child, SkCanvas* canvas) {
canvas->translate(-cx, -cy);
}
if (kUnknown_SkTriState != fLCDState ||
kUnknown_SkTriState != fAAState) {
canvas->setDrawFilter(new FlagsDrawFilter(fLCDState, fAAState))->unref();
}
canvas->setDrawFilter(new FlagsDrawFilter(fLCDState, fAAState, fFilterState))->unref();
if (fMeasureFPS) {
fMeasureFPS_Time = 0; // 0 means the child is not aware of repeat-draw
@ -1034,6 +1037,11 @@ bool SampleWindow::onHandleChar(SkUnichar uni) {
this->updateTitle();
this->inval(NULL);
break;
case 'n':
fFilterState = cycle_tristate(fFilterState);
this->updateTitle();
this->inval(NULL);
break;
case 'o':
this->zoomOut();
break;
@ -1274,6 +1282,7 @@ void SampleWindow::updateTitle() {
title.prepend(trystate_str(fLCDState, "LCD ", "lcd "));
title.prepend(trystate_str(fAAState, "AA ", "aa "));
title.prepend(trystate_str(fFilterState, "LERP ", "lerp "));
title.prepend(fFlipAxis & kFlipAxis_X ? "X " : NULL);
title.prepend(fFlipAxis & kFlipAxis_Y ? "Y " : NULL);