109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
/*
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* Copyright 2021 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/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/SkPoint.h"
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#include "include/core/SkRect.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/SkTextBlob.h"
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#include "include/core/SkTypeface.h"
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#include "include/core/SkTypes.h"
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#include "include/private/SkTDArray.h"
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#include "include/private/chromium/GrSlug.h"
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#include "tools/ToolUtils.h"
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#if SK_SUPPORT_GPU && defined(SK_EXPERIMENTAL_SIMULATE_DRAWGLYPHRUNLIST_WITH_SLUG)
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class SlugGM : public skiagm::GM {
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public:
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SlugGM(const char* txt)
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: fText(txt) {
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}
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protected:
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void onOnceBeforeDraw() override {
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fTypeface = ToolUtils::create_portable_typeface("serif", SkFontStyle());
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SkFont font(fTypeface);
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size_t txtLen = strlen(fText);
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int glyphCount = font.countText(fText, txtLen, SkTextEncoding::kUTF8);
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fGlyphs.append(glyphCount);
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font.textToGlyphs(fText, txtLen, SkTextEncoding::kUTF8, fGlyphs.begin(), glyphCount);
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}
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SkString onShortName() override {
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return SkString("slug");
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}
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SkISize onISize() override {
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return SkISize::Make(1000, 480);
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}
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void onDraw(SkCanvas* canvas) override {
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sk_sp<SkTextBlob> blob(this->makeBlob());
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SkPaint p;
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p.setAntiAlias(true);
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canvas->clipIRect(SkIRect::MakeSize(this->getISize()).makeInset(40, 50));
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canvas->scale(1.3f, 1.3f);
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sk_sp<GrSlug> slug = GrSlug::ConvertBlob(canvas, *blob, {10, 10}, p);
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if (slug == nullptr) {
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return;
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}
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canvas->translate(0.5, 0.5);
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canvas->translate(30, 30);
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canvas->drawTextBlob(blob, 10, 10, p);
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canvas->translate(370, 0);
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slug->draw(canvas);
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for (float scale = 1.5; scale < 4; scale += 0.5) {
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canvas->translate(-370, 20 * scale);
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canvas->save();
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canvas->scale(scale, scale);
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canvas->rotate(5);
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canvas->drawTextBlob(blob, 10, 10, p);
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canvas->restore();
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canvas->translate(370, 0);
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canvas->save();
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canvas->scale(scale, scale);
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canvas->rotate(5);
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slug->draw(canvas);
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canvas->restore();
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}
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}
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private:
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sk_sp<SkTextBlob> makeBlob() {
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SkTextBlobBuilder builder;
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SkFont font;
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font.setSubpixel(true);
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font.setEdging(SkFont::Edging::kAntiAlias);
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font.setTypeface(fTypeface);
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font.setSize(16);
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const SkTextBlobBuilder::RunBuffer& buf = builder.allocRun(font, fGlyphs.count(), 0, 0);
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memcpy(buf.glyphs, fGlyphs.begin(), fGlyphs.count() * sizeof(uint16_t));
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return builder.make();
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}
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SkTDArray<uint16_t> fGlyphs;
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sk_sp<SkTypeface> fTypeface;
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const char* fText;
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using INHERITED = skiagm::GM;
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};
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DEF_GM(return new SlugGM("hamburgefons");)
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#endif
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