blob: 6e584da8be09dd4f2880dd7fe39b27626be96832 [file] [log] [blame]
/*
* Copyright 2021 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFont.h"
#include "include/core/SkFontStyle.h"
#include "include/core/SkFontTypes.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTextBlob.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "include/private/base/SkTDArray.h"
#include "include/private/chromium/Slug.h"
#include "tools/ToolUtils.h"
#include "tools/fonts/FontToolUtils.h"
#if defined(SK_GRAPHITE)
#include "include/gpu/graphite/ContextOptions.h"
#endif
#if defined(SK_GANESH) || defined(SK_GRAPHITE)
#include "include/gpu/GrContextOptions.h"
class SlugGM : public skiagm::GM {
public:
SlugGM(const char* txt) : fText(txt) {}
protected:
void modifyGrContextOptions(GrContextOptions* ctxOptions) override {
ctxOptions->fSupportBilerpFromGlyphAtlas = true;
}
#if defined(SK_GRAPHITE)
void modifyGraphiteContextOptions(skgpu::graphite::ContextOptions* options) const override {
options->fSupportBilerpFromGlyphAtlas = true;
}
#endif
void onOnceBeforeDraw() override {
fTypeface = ToolUtils::CreatePortableTypeface("serif", SkFontStyle());
SkFont font(fTypeface);
size_t txtLen = strlen(fText);
int glyphCount = font.countText(fText, txtLen, SkTextEncoding::kUTF8);
fGlyphs.append(glyphCount);
font.textToGlyphs(fText, txtLen, SkTextEncoding::kUTF8, fGlyphs.begin(), glyphCount);
}
SkString getName() const override { return SkString("slug"); }
SkISize getISize() override { return SkISize::Make(1000, 480); }
void onDraw(SkCanvas* canvas) override {
sk_sp<SkTextBlob> blob(this->makeBlob());
SkPaint p;
p.setAntiAlias(true);
canvas->clipIRect(SkIRect::MakeSize(this->getISize()).makeInset(40, 50));
canvas->scale(1.3f, 1.3f);
sk_sp<sktext::gpu::Slug> slug = sktext::gpu::Slug::ConvertBlob(canvas, *blob, {10, 10}, p);
if (slug == nullptr) {
return;
}
canvas->translate(0.5, 0.5);
canvas->translate(30, 30);
canvas->drawTextBlob(blob, 10, 10, p);
canvas->translate(370, 0);
slug->draw(canvas, p);
for (float scale = 1.5; scale < 4; scale += 0.5) {
canvas->translate(-370, 20 * scale);
canvas->save();
canvas->scale(scale, scale);
canvas->rotate(5);
canvas->drawTextBlob(blob, 10, 10, p);
canvas->restore();
canvas->translate(370, 0);
canvas->save();
canvas->scale(scale, scale);
canvas->rotate(5);
slug->draw(canvas, p);
canvas->restore();
}
}
private:
sk_sp<SkTextBlob> makeBlob() {
SkTextBlobBuilder builder;
SkFont font;
font.setSubpixel(true);
font.setEdging(SkFont::Edging::kAntiAlias);
font.setTypeface(fTypeface);
font.setSize(16);
const SkTextBlobBuilder::RunBuffer& buf = builder.allocRun(font, fGlyphs.size(), 0, 0);
memcpy(buf.glyphs, fGlyphs.begin(), fGlyphs.size() * sizeof(uint16_t));
return builder.make();
}
SkTDArray<uint16_t> fGlyphs;
sk_sp<SkTypeface> fTypeface;
const char* fText;
using INHERITED = skiagm::GM;
};
DEF_GM(return new SlugGM("hamburgefons");)
#endif