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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBlurImageFilter.h"
#include "SkMaskFilter.h"
#include "gm.h"
#include "sk_tool_utils.h"
DEF_SIMPLE_GM(blurimagevmask, canvas, 700, 1200) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(SK_ColorBLACK);
SkPaint textPaint;
textPaint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&textPaint);
textPaint.setTextSize(SkIntToScalar(25));
const double sigmas[] = {3.0, 8.0, 16.0, 24.0, 32.0};
canvas->drawString("mask blur", 285, 50, textPaint);
canvas->drawString("image blur", 285 + 250, 50, textPaint);
SkRect r = {35, 100, 135, 200};
for (auto sigma:sigmas) {
canvas->drawRect(r, paint);
char out[100];
sprintf(out, "Sigma: %g", sigma);
canvas->drawString(out, r.left(), r.bottom() + 35, textPaint);
r.offset(250, 0);
paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, sigma));
canvas->drawRect(r, paint);
paint.setMaskFilter(nullptr);
SkPaint imageBlurPaint;
r.offset(250, 0);
imageBlurPaint.setImageFilter(SkBlurImageFilter::Make(sigma, sigma, nullptr));
canvas->saveLayer(nullptr, &imageBlurPaint);
canvas->drawRect(r, paint);
canvas->restore();
r.offset(-500, 200);
}
}
#include "Resources.h"
DEF_SIMPLE_GM(blur_image, canvas, 500, 500) {
auto image = GetResourceAsImage("images/mandrill_128.png");
SkPaint paint;
paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 4));
// both of these should draw with the blur, but (formerally) we had a bug where the unscaled
// version (taking the spriteblitter code path) ignore the maskfilter.
canvas->drawImage(image, 10, 10, &paint);
canvas->scale(1.01f, 1.01f);
canvas->drawImage(image, 10 + image->width() + 10.f, 10, &paint);
}
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