AuroraMiddleware/skia2
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Run noise shader separately in imagefiltersclipped

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BUG=skia:4079

Review URL: https://codereview.chromium.org/1245983002
This commit is contained in:
jvanverth 2015-07-21 08:38:06 -07:00 committed by Commit bot
parent 374b2f7cea
commit 02781977e0
1 changed files with 31 additions and 15 deletions
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46
gm/imagefiltersclipped.cpp
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@ -59,6 +59,25 @@ protected:
canvas.drawCircle(x, y, radius, paint);
}
static void draw_clipped_filter(SkCanvas* canvas, SkImageFilter* filter, size_t i,
const SkRect& primBounds, const SkRect& clipBounds) {
SkPaint paint;
paint.setColor(SK_ColorWHITE);
paint.setImageFilter(filter);
paint.setAntiAlias(true);
canvas->save();
canvas->clipRect(clipBounds);
if (5 == i) {
canvas->translate(SkIntToScalar(16), SkIntToScalar(-32));
} else if (6 == i) {
canvas->scale(SkScalarInvert(RESIZE_FACTOR_X),
SkScalarInvert(RESIZE_FACTOR_Y));
}
canvas->drawCircle(primBounds.centerX(), primBounds.centerY(),
primBounds.width() * 2 / 5, paint);
canvas->restore();
}
void onDraw(SkCanvas* canvas) override {
if (!fInitialized) {
fCheckerboard.allocN32Pixels(64, 64);
@ -91,7 +110,6 @@ protected:
SkErodeImageFilter::Create(2, 2, checkerboard.get()),
SkOffsetImageFilter::Create(SkIntToScalar(-16), SkIntToScalar(32)),
SkImageFilter::CreateMatrixFilter(resizeMatrix, kNone_SkFilterQuality),
SkRectShaderImageFilter::Create(noise),
};
SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64));
@ -99,33 +117,31 @@ protected:
SkRect bounds = r;
bounds.outset(margin, margin);
canvas->save();
for (int xOffset = 0; xOffset < 80; xOffset += 16) {
canvas->save();
bounds.fLeft = SkIntToScalar(xOffset);
for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
SkPaint paint;
paint.setColor(SK_ColorWHITE);
paint.setImageFilter(filters[i]);
paint.setAntiAlias(true);
canvas->save();
canvas->clipRect(bounds);
if (5 == i) {
canvas->translate(SkIntToScalar(16), SkIntToScalar(-32));
} else if (6 == i) {
canvas->scale(SkScalarInvert(RESIZE_FACTOR_X),
SkScalarInvert(RESIZE_FACTOR_Y));
}
canvas->drawCircle(r.centerX(), r.centerY(), r.width() * 2 / 5, paint);
canvas->restore();
draw_clipped_filter(canvas, filters[i], i, r, bounds);
canvas->translate(r.width() + margin, 0);
}
canvas->restore();
canvas->translate(0, r.height() + margin);
}
canvas->restore();
for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
SkSafeUnref(filters[i]);
}
SkImageFilter* rectFilter = SkRectShaderImageFilter::Create(noise);
canvas->translate(SK_ARRAY_COUNT(filters)*(r.width() + margin), 0);
for (int xOffset = 0; xOffset < 80; xOffset += 16) {
bounds.fLeft = SkIntToScalar(xOffset);
draw_clipped_filter(canvas, rectFilter, 0, r, bounds);
canvas->translate(0, r.height() + margin);
}
SkSafeUnref(rectFilter);
}
private: