1be1f8d097
SK_SUPPORT_LEGACY_BLURMASKFILTER Bug: skia: Change-Id: Ic3e27e08e6e3cd2ffc1cd13b044e197bebc96236 Reviewed-on: https://skia-review.googlesource.com/113940 Commit-Queue: Mike Reed <reed@google.com> Reviewed-by: Florin Malita <fmalita@chromium.org>
55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkColorFilter.h"
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#include "SkImage.h"
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#include "SkMaskFilter.h"
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#include "SkShader.h"
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static SkBitmap make_alpha_image(int w, int h) {
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SkBitmap bm;
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bm.allocPixels(SkImageInfo::MakeA8(w, h));
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bm.eraseARGB(10, 0, 0 , 0);
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for (int y = 0; y < bm.height(); ++y) {
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for (int x = y; x < bm.width(); ++x) {
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*bm.getAddr8(x, y) = 0xFF;
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}
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}
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bm.setImmutable();
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return bm;
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}
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static sk_sp<SkColorFilter> make_color_filter() {
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SkScalar colorMatrix[20] = {
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1, 0, 0, 0, 0,
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0, 1, 0, 0, 0,
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0, 0, 0.5, 0.5, 0,
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0, 0, 0.5, 0.5, 0}; // mix G and A.
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return SkColorFilter::MakeMatrixFilterRowMajor255(colorMatrix);
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}
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DEF_SIMPLE_GM(alpha_image, canvas, 256, 256) {
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auto image = SkImage::MakeFromBitmap(make_alpha_image(96, 96));
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SkPaint paint;
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paint.setColorFilter(make_color_filter());
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paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 10.0f));
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canvas->drawImage(image.get(), 16, 16, &paint);
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paint.setColorFilter(nullptr);
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paint.setShader(SkShader::MakeColorShader(SK_ColorCYAN));
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canvas->drawImage(image.get(), 144, 16, &paint);
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paint.setColorFilter(make_color_filter());
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canvas->drawImage(image.get(), 16, 144, &paint);
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paint.setMaskFilter(nullptr);
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canvas->drawImage(image.get(), 144, 144, &paint);
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}
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