dbfd7ab108
'static const' means, there must be at most one of these, and initialize it at compile time if possible or runtime if necessary. This leads to unexpected code execution, and TSAN* will complain about races on the guard variables. Generally 'constexpr' or 'const' are better choices. Neither can cause races: they're either intialized at compile time (constexpr) or intialized each time independently (const). This CL prefers constexpr where possible, and uses const where not. It even prefers constexpr over const where they don't make a difference... I want to have lots of examples of constexpr for people to see and mimic. The scoped-to-class static has nothing to do with any of this, and is not changed. * Not yet on the bots, which use an older TSAN. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2300623005 Review-Url: https://codereview.chromium.org/2300623005
121 lines
3.7 KiB
C++
121 lines
3.7 KiB
C++
/*
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* Copyright 2011 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 "SkCanvas.h"
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#include "SkTypeface.h"
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namespace skiagm {
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#define TEXT_SIZE 48
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constexpr char gText[] = "Hello";
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//Before shaping
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//constexpr char gText[] = "「テスト。」";
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//constexpr char gText[] = {0xE3,0x80,0x8C, 0xE3,0x83,0x86, 0xE3,0x82,0xB9, 0xE3,0x83,0x88, 0xE3,0x80,0x82, 0xE3,0x80,0x8D, 0x0};
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//After shaping
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//constexpr char gText[] = "﹁テスト︒﹂";
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//constexpr char gText[] = {0xEF,0xB9,0x81, 0xE3,0x83,0x86, 0xE3,0x82,0xB9, 0xE3,0x83,0x88, 0xEF,0xB8,0x92, 0xEF,0xB9,0x82, 0x0};
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constexpr size_t gLen = sizeof(gText) - sizeof(gText[0]);
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class VertTextGM : public GM {
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public:
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VertTextGM()
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// : fFace(SkTypeface::CreateFromName("unifont", SkTypeface::kNormal))
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// : fFace(SkTypeface::CreateFromFile("MotoyaL04Mincho_3.ttf"))
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// Bitmap fonts on OS X.
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// : fFace(SkTypeface::CreateFromName("GB18030 Bitmap", SkTypeface::kNormal))
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// : fFace(SkTypeface::CreateFromName("Apple Color Emoji", SkTypeface::kNormal))
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// OTF CFF fonts on OS X.
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// : fFace(SkTypeface::CreateFromName("Hiragino Mincho ProN", SkTypeface::kNormal))
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// : fFace(SkTypeface::CreateFromName("Hiragino Kaku Gothic Pro", SkTypeface::kNormal))
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// : fFace(SkTypeface::CreateFromName("Hiragino Sans GB", SkTypeface::kNormal))
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// : fFace(SkTypeface::CreateFromName("STIXGeneral", SkTypeface::kNormal))
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// : fFace(SkTypeface::CreateFromName("Yuppy SC", SkTypeface::kNormal))
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// : fFace(SkTypeface::CreateFromName("Yuppy TC", SkTypeface::kNormal))
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{
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}
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//SkAutoTUnref<SkTypeface> fFace;
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protected:
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SkString onShortName() override {
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return SkString("verttext");
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}
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SkISize onISize() override { return SkISize::Make(640, 480); }
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static void drawBaseline(SkCanvas* canvas, const SkPaint& paint,
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SkScalar x, SkScalar y) {
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SkScalar total = paint.measureText(gText, gLen);
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SkPaint p;
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p.setAntiAlias(true);
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p.setColor(0x80FF0000);
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canvas->drawLine(x, y,
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paint.isVerticalText() ? x : x + total,
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paint.isVerticalText() ? y + total : y,
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p);
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p.setColor(0xFF0000FF);
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SkScalar adv[gLen];
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int numChars = paint.getTextWidths(gText, gLen, adv, nullptr);
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for (int i = 0; i < numChars; ++i) {
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canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p);
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if (paint.isVerticalText()) {
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y += adv[i];
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} else {
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x += adv[i];
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}
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}
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canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p);
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}
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void onDraw(SkCanvas* canvas) override {
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SkScalar x = SkIntToScalar(100);
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SkScalar y = SkIntToScalar(50);
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for (int i = 0; i < 4; ++i) {
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setTextSize(SkIntToScalar(TEXT_SIZE));
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//paint.setTypeface(fFace);
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//paint.setFakeBoldText(true);
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paint.setVerticalText(false);
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drawBaseline(canvas, paint, x, y);
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canvas->drawText(gText, gLen, x, y, paint);
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paint.setVerticalText(true);
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drawBaseline(canvas, paint, x, y);
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canvas->drawText(gText, gLen, x, y, paint);
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x += SkIntToScalar(40);
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y += SkIntToScalar(120);
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canvas->rotate(SkIntToScalar(-15));
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}
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}
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private:
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typedef GM INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new VertTextGM; }
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static GMRegistry reg(MyFactory);
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}
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