| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| // GM to stress TextBlob regeneration and the GPU font cache |
| // It's not necessary to run this with CPU configs |
| // |
| // The point here is to draw a set of text that will fit in one Plot, and then some large |
| // text. After a flush we draw the first set of text again with a slightly different color, |
| // and then enough new large text to spill the entire atlas. What *should* happen is that |
| // the Plot with the first set of text will not get overwritten by the new large text. |
| |
| #include "gm/gm.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkFontMgr.h" |
| #include "include/core/SkFontStyle.h" |
| #include "include/core/SkFontTypes.h" |
| #include "include/core/SkPaint.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/gpu/GrContextOptions.h" |
| #include "include/gpu/GrDirectContext.h" |
| #include "include/gpu/GrRecordingContext.h" |
| #include "include/private/base/SkTemplates.h" |
| #include "include/private/gpu/ganesh/GrTypesPriv.h" |
| #include "src/gpu/ganesh/GrDirectContextPriv.h" |
| #include "tools/ToolUtils.h" |
| |
| using namespace skia_private; |
| using MaskFormat = skgpu::MaskFormat; |
| |
| static sk_sp<SkTextBlob> make_blob(const SkString& text, const SkFont& font) { |
| size_t len = text.size(); |
| AutoTArray<SkScalar> pos(len); |
| AutoTArray<SkGlyphID> glyphs(len); |
| |
| font.textToGlyphs(text.c_str(), len, SkTextEncoding::kUTF8, glyphs.get(), len); |
| font.getXPos(glyphs.get(), len, pos.get()); |
| return SkTextBlob::MakeFromPosTextH(text.c_str(), len, pos.get(), 0, font); |
| } |
| |
| class FontRegenGM : public skiagm::GM { |
| |
| void modifyGrContextOptions(GrContextOptions* options) override { |
| options->fGlyphCacheTextureMaximumBytes = 0; |
| options->fAllowMultipleGlyphCacheTextures = GrContextOptions::Enable::kNo; |
| } |
| |
| SkString onShortName() override { return SkString("fontregen"); } |
| |
| SkISize onISize() override { return {kSize, kSize}; } |
| |
| void onOnceBeforeDraw() override { |
| this->setBGColor(SK_ColorLTGRAY); |
| |
| auto tf = ToolUtils::create_portable_typeface("sans-serif", SkFontStyle::Normal()); |
| |
| static const SkString kTexts[] = { |
| SkString("abcdefghijklmnopqrstuvwxyz"), |
| SkString("ABCDEFGHI"), |
| SkString("NOPQRSTUV") |
| }; |
| |
| SkFont font; |
| font.setEdging(SkFont::Edging::kAntiAlias); |
| font.setSubpixel(false); |
| font.setSize(80); |
| font.setTypeface(tf); |
| |
| fBlobs[0] = make_blob(kTexts[0], font); |
| font.setSize(162); |
| fBlobs[1] = make_blob(kTexts[1], font); |
| fBlobs[2] = make_blob(kTexts[2], font); |
| } |
| |
| DrawResult onDraw(SkCanvas* canvas, SkString* errorMsg) override { |
| auto dContext = GrAsDirectContext(canvas->recordingContext()); |
| if (!dContext) { |
| *errorMsg = "GPU-specific"; |
| return DrawResult::kSkip; |
| } |
| |
| SkPaint paint; |
| paint.setColor(SK_ColorBLACK); |
| canvas->drawTextBlob(fBlobs[0], 10, 80, paint); |
| canvas->drawTextBlob(fBlobs[1], 10, 225, paint); |
| dContext->flushAndSubmit(); |
| |
| paint.setColor(0xFF010101); |
| canvas->drawTextBlob(fBlobs[0], 10, 305, paint); |
| canvas->drawTextBlob(fBlobs[2], 10, 465, paint); |
| |
| // Debugging tool for GPU. |
| static const bool kShowAtlas = false; |
| if (kShowAtlas) { |
| auto img = dContext->priv().testingOnly_getFontAtlasImage(MaskFormat::kA8); |
| canvas->drawImage(img, 200, 0); |
| } |
| |
| return DrawResult::kOk; |
| } |
| |
| private: |
| inline static constexpr int kSize = 512; |
| |
| sk_sp<SkTextBlob> fBlobs[3]; |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new FontRegenGM()) |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class BadAppleGM : public skiagm::GM { |
| |
| SkString onShortName() override { return SkString("badapple"); } |
| |
| SkISize onISize() override { return {kSize, kSize}; } |
| |
| void onOnceBeforeDraw() override { |
| this->setBGColor(SK_ColorWHITE); |
| auto fm = SkFontMgr::RefDefault(); |
| |
| static const SkString kTexts[] = { |
| SkString("Meet"), |
| SkString("iPad Pro"), |
| }; |
| |
| SkFont font; |
| font.setEdging(SkFont::Edging::kSubpixelAntiAlias); |
| font.setSubpixel(true); |
| font.setSize(256); |
| |
| fBlobs[0] = make_blob(kTexts[0], font); |
| fBlobs[1] = make_blob(kTexts[1], font); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint paint; |
| paint.setColor(0xFF111111); |
| canvas->drawTextBlob(fBlobs[0], 10, 260, paint); |
| canvas->drawTextBlob(fBlobs[1], 10, 500, paint); |
| } |
| |
| private: |
| inline static constexpr int kSize = 512; |
| |
| sk_sp<SkTextBlob> fBlobs[3]; |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new BadAppleGM()) |