c0bd9f9fe5
Current strategy: everything from the top
Things to look at first are the manual changes:
- added tools/rewrite_includes.py
- removed -Idirectives from BUILD.gn
- various compile.sh simplifications
- tweak tools/embed_resources.py
- update gn/find_headers.py to write paths from the top
- update gn/gn_to_bp.py SkUserConfig.h layout
so that #include "include/config/SkUserConfig.h" always
gets the header we want.
No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
30 lines
1.1 KiB
C++
30 lines
1.1 KiB
C++
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "tools/fiddle/examples.h"
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// HASH=092739b4cd5d732a27c07ced8ef45f01
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REG_FIDDLE(Bitmap_extractAlpha_2, 256, 160, false, 0) {
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void draw(SkCanvas* canvas) {
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auto radiusToSigma = [](SkScalar radius) -> SkScalar {
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static const SkScalar kBLUR_SIGMA_SCALE = 0.57735f;
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return radius > 0 ? kBLUR_SIGMA_SCALE * radius + 0.5f : 0.0f;
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};
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SkBitmap alpha, bitmap;
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bitmap.allocN32Pixels(100, 100);
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SkCanvas offscreen(bitmap);
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offscreen.clear(0);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorBLUE);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(20);
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offscreen.drawCircle(50, 50, 39, paint);
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offscreen.flush();
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paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, radiusToSigma(25)));
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SkIPoint offset;
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bitmap.extractAlpha(&alpha, &paint, &offset);
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paint.setColor(SK_ColorRED);
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canvas->drawBitmap(bitmap, 0, -offset.fY, &paint);
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canvas->drawBitmap(alpha, 100 + offset.fX, 0, &paint);
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}
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} // END FIDDLE
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