9cbadcd928
Bug: skia:12290 Change-Id: I064bee781d3a714e46f102cb48494fbe8f3e46e8 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/516436 Reviewed-by: Florin Malita <fmalita@google.com> Reviewed-by: Derek Sollenberger <djsollen@google.com> Commit-Queue: Ben Wagner <bungeman@google.com>
127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
/*
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* Copyright 2018 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/gm.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkFontMetrics.h"
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#include "include/core/SkFontStyle.h"
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#include "include/core/SkFontTypes.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTypeface.h"
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#include "src/core/SkEnumerate.h"
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#include "tools/Resources.h"
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#include "tools/ToolUtils.h"
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#include <string.h>
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#include <initializer_list>
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namespace skiagm {
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class ScaledEmojiRenderingGM : public GM {
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public:
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ScaledEmojiRenderingGM() {}
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protected:
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struct Test {
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enum class Source { Resource, Portable };
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Source const fontSource;
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char const * const fontName;
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char const * const text;
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};
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static constexpr char const * const sampleText = ToolUtils::emoji_sample_text();
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static constexpr const Test tests[] = {
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{ Test::Source::Resource, "fonts/colr.ttf" , sampleText },
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{ Test::Source::Resource, "fonts/sbix.ttf" , sampleText },
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{ Test::Source::Resource, "fonts/cbdt.ttf" , sampleText },
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{ Test::Source::Portable, "Emoji" , sampleText },
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{ Test::Source::Resource, "fonts/SampleSVG.ttf", "abcdefghi" },
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};
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sk_sp<SkTypeface> typefaces[SK_ARRAY_COUNT(tests)];
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void onOnceBeforeDraw() override {
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for (auto&& [i, test] : SkMakeEnumerate(tests)) {
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if (test.fontSource == Test::Source::Resource) {
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typefaces[i] = MakeResourceAsTypeface(test.fontName);
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} else if (test.fontSource == Test::Source::Portable) {
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typefaces[i] = ToolUtils::create_portable_typeface(test.fontName, SkFontStyle());
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} else {
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SK_ABORT("Unknown test type");
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}
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}
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}
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SkString onShortName() override {
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return SkString("scaledemoji_rendering");
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}
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SkISize onISize() override { return SkISize::Make(1200, 1200); }
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void onDraw(SkCanvas* canvas) override {
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canvas->drawColor(SK_ColorGRAY);
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SkPaint textPaint;
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textPaint.setColor(SK_ColorCYAN);
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SkPaint boundsPaint;
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boundsPaint.setStrokeWidth(2);
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boundsPaint.setStyle(SkPaint::kStroke_Style);
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boundsPaint.setColor(SK_ColorGREEN);
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SkPaint advancePaint;
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advancePaint.setColor(SK_ColorRED);
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SkScalar y = 0;
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for (auto&& [i, test] : SkMakeEnumerate(tests)) {
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SkFont font(typefaces[i]);
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font.setEdging(SkFont::Edging::kAlias);
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const char* text = test.text;
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SkFontMetrics metrics;
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for (SkScalar textSize : { 70, 150 }) {
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font.setSize(textSize);
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font.getMetrics(&metrics);
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// All typefaces should support subpixel mode
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font.setSubpixel(true);
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y += -metrics.fAscent;
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SkScalar x = 0;
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for (bool fakeBold : { false, true }) {
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font.setEmbolden(fakeBold);
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SkRect bounds;
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SkScalar advance = font.measureText(text, strlen(text), SkTextEncoding::kUTF8,
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&bounds, &textPaint);
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canvas->drawSimpleText(text, strlen(text), SkTextEncoding::kUTF8,
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x, y, font, textPaint);
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if ((false)) {
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bounds.offset(x, y);
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canvas->drawRect(bounds, boundsPaint);
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SkRect advanceRect = SkRect::MakeLTRB(x, y + 2, x + advance, y + 4);
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canvas->drawRect(advanceRect, advancePaint);
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}
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x += bounds.width() * 1.2;
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}
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y += metrics.fDescent + metrics.fLeading;
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x = 0;
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}
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}
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}
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private:
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using INHERITED = GM;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new ScaledEmojiRenderingGM;)
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} // namespace skiagm
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