2a24338c77
I have verified locally that nothing draws differently. Motivation: * SK_SIMPLE_GM makes it easier to write a GM. * Reducing 1100 lines of code makes maintenance easier. * Simple GMs are easy to convert to Fiddles. Review URL: https://codereview.chromium.org/1333553002
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
/*
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* Copyright 2014 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 "SkColor.h"
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#include "SkImageFilter.h"
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static void draw(SkCanvas* canvas, const SkRect& rect, const SkBitmap& bitmap,
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const SkMatrix& matrix, SkFilterQuality filter) {
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SkAutoTUnref<SkImageFilter> imageFilter(
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SkImageFilter::CreateMatrixFilter(matrix, filter));
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SkPaint paint;
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paint.setImageFilter(imageFilter.get());
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canvas->saveLayer(&rect, &paint);
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canvas->drawBitmap(bitmap, 0, 0);
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canvas->restore();
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}
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static void make_checkerboard(SkBitmap* bitmap) {
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bitmap->allocN32Pixels(64, 64);
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SkCanvas canvas(*bitmap);
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SkPaint darkPaint;
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darkPaint.setColor(sk_tool_utils::color_to_565(0xFF404040));
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SkPaint lightPaint;
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lightPaint.setColor(sk_tool_utils::color_to_565(0xFFA0A0A0));
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for (int y = 0; y < 64; y += 32) {
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for (int x = 0; x < 64; x += 32) {
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canvas.save();
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canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
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canvas.drawRect(SkRect::MakeXYWH(0, 0, 16, 16), darkPaint);
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canvas.drawRect(SkRect::MakeXYWH(16, 0, 16, 16), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(0, 16, 16, 16), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(16, 16, 16, 16), darkPaint);
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canvas.restore();
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}
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}
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}
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DEF_SIMPLE_GM_BG(matriximagefilter, canvas, 420, 100, SK_ColorBLACK) {
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SkMatrix matrix;
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SkScalar margin = SkIntToScalar(10);
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matrix.setSkew(SkDoubleToScalar(0.5), SkDoubleToScalar(0.2));
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SkBitmap checkerboard;
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make_checkerboard(&checkerboard);
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SkRect srcRect = SkRect::MakeWH(96, 96);
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canvas->translate(margin, margin);
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draw(canvas, srcRect, checkerboard, matrix, kNone_SkFilterQuality);
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canvas->translate(srcRect.width() + margin, 0);
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draw(canvas, srcRect, checkerboard, matrix, kLow_SkFilterQuality);
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#if 0
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// This may be causing Mac 10.6 to barf.
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canvas->translate(srcRect.width() + margin, 0);
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draw(canvas, srcRect, checkerboard, matrix, kMedium_SkFilterQuality);
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canvas->translate(srcRect.width() + margin, 0);
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draw(canvas, srcRect, checkerboard, matrix, kHigh_SkFilterQuality);
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#endif
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}
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