1fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 2fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Copyright 2017 Google Inc. 3fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 4fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Use of this source code is governed by a BSD-style license that can be 5fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * found in the LICENSE file. 6fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 7fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 8fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "gm.h" 9fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 10fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#if SK_SUPPORT_ATLAS_TEXT 11fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 12fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkAtlasTextContext.h" 13fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkAtlasTextFont.h" 14fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkAtlasTextTarget.h" 15fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkBitmap.h" 16fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkCanvas.h" 17fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkTypeface.h" 18fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkUtils.h" 19fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "gpu/TestContext.h" 20fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "gpu/atlastext/GLTestAtlasTextRenderer.h" 21fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "gpu/atlastext/TestAtlasTextRenderer.h" 22fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "sk_tool_utils.h" 23fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 24fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot// GM that draws text using the Atlas Text interface offscreen and then blits that to the canvas. 25fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 26fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstatic SkScalar draw_string(SkAtlasTextTarget* target, const SkString& text, SkScalar x, SkScalar y, 27fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot uint32_t color, sk_sp<SkTypeface> typeface, float size) { 28fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (!text.size()) { 29fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return x; 30fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 31fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot auto font = SkAtlasTextFont::Make(typeface, size); 32fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot int cnt = SkUTF8_CountUnichars(text.c_str()); 33fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<SkGlyphID[]> glyphs(new SkGlyphID[cnt]); 34fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot typeface->charsToGlyphs(text.c_str(), SkTypeface::Encoding::kUTF8_Encoding, glyphs.get(), cnt); 35fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 36fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Using a paint to get the positions for each glyph. 37fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkPaint paint; 38fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setTextSize(size); 39fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setTypeface(std::move(typeface)); 40fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); 41fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<SkScalar[]> widths(new SkScalar[cnt]); 42fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.getTextWidths(glyphs.get(), cnt * sizeof(SkGlyphID), widths.get(), nullptr); 43fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 44fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<SkPoint[]> positions(new SkPoint[cnt]); 45fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot positions[0] = {x, y}; 46fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int i = 1; i < cnt; ++i) { 47fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot positions[i] = {positions[i - 1].fX + widths[i - 1], y}; 48fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 49fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 50fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot target->drawText(glyphs.get(), positions.get(), cnt, color, *font); 51fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 52fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Return the width of the of draw. 53fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return positions[cnt - 1].fX + widths[cnt - 1] - positions[0].fX; 54fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 55fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 56fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotclass AtlasTextGM : public skiagm::GM { 57fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotpublic: 58fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot AtlasTextGM() = default; 59fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 60fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotprotected: 61fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkString onShortName() override { return SkString("atlastext"); } 62fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 63fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkISize onISize() override { return SkISize::Make(kSize, kSize); } 64fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 65fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void onOnceBeforeDraw() override { 66fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fRenderer = sk_gpu_test::MakeGLTestAtlasTextRenderer(); 67fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (!fRenderer) { 68fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return; 69fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 70fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fContext = SkAtlasTextContext::Make(fRenderer); 71fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot auto targetHandle = fRenderer->makeTargetHandle(kSize, kSize); 72fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTarget = SkAtlasTextTarget::Make(fContext, kSize, kSize, targetHandle); 73fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 74fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTypefaces[0] = sk_tool_utils::create_portable_typeface("serif", SkFontStyle::Italic()); 75fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTypefaces[1] = 76fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_tool_utils::create_portable_typeface("sans-serif", SkFontStyle::Italic()); 77fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTypefaces[2] = sk_tool_utils::create_portable_typeface("serif", SkFontStyle::Normal()); 78fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTypefaces[3] = 79fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_tool_utils::create_portable_typeface("sans-serif", SkFontStyle::Normal()); 80fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTypefaces[4] = sk_tool_utils::create_portable_typeface("serif", SkFontStyle::Bold()); 81fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTypefaces[5] = sk_tool_utils::create_portable_typeface("sans-serif", SkFontStyle::Bold()); 82fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 83fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 84fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void onDraw(SkCanvas* canvas) override { 85fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (!fRenderer) { 86fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->clear(SK_ColorRED); 87fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return; 88fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 89fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fRenderer->clearTarget(fTarget->handle(), 0xFF808080); 90fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot auto bmp = this->drawText(); 91fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkPaint paint; 92fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot paint.setBlendMode(SkBlendMode::kSrc); 93fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot canvas->drawBitmap(bmp, 0, 0); 94fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 95fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 96fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotprivate: 97fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkBitmap drawText() { 98fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static const int kSizes[] = {8, 13, 18, 23, 30}; 99fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 100fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static const SkString kTexts[] = {SkString("ABCDEFGHIJKLMNOPQRSTUVWXYZ"), 101fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkString("abcdefghijklmnopqrstuvwxyz"), 102fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkString("0123456789"), 103fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkString("!@#$%^&*()<>[]{}")}; 104fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkScalar x = 0; 105fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkScalar y = 10; 106fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 107fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkRandom random; 108fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot do { 109fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (auto s : kSizes) { 110fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot auto size = 2 * s; 111fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (const auto& typeface : fTypefaces) { 112fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (const auto& text : kTexts) { 113fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Choose a random color but don't let alpha be too small to see. 114fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot uint32_t color = random.nextU() | 0x40000000; 115fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTarget->save(); 116fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Randomly add a little bit of perspective 117fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (random.nextBool()) { 118fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkMatrix persp; 119fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot persp.reset(); 120fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot persp.setPerspY(0.0005f); 121fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot persp.preTranslate(-x, -y + s); 122fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot persp.postTranslate(x, y - s); 123fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTarget->concat(persp); 124fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 125fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Randomly switch between positioning with a matrix vs x, y passed to draw. 126fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkScalar drawX = x, drawY = y; 127fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (random.nextBool()) { 128fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTarget->translate(x, y); 129fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot drawX = drawY = 0; 130fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 131fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot x += size + 132fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot draw_string(fTarget.get(), text, drawX, drawY, color, typeface, size); 133fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot x = SkScalarCeilToScalar(x); 134fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTarget->restore(); 135fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // Flush periodically to test continued drawing after a flush. 136fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if ((random.nextU() % 8) == 0) { 137fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTarget->flush(); 138fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 139fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (x + 100 > kSize) { 140fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot x = 0; 141fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot y += SkScalarCeilToScalar(size + 3); 142fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (y > kSize) { 143fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTarget->flush(); 144fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return fRenderer->readTargetHandle(fTarget->handle()); 145fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 146fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 147fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 148fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 149fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 150fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } while (true); 151fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 152fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 153fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static constexpr int kSize = 1280; 154fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 155fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<SkTypeface> fTypefaces[6]; 156fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<sk_gpu_test::TestAtlasTextRenderer> fRenderer; 157fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot std::unique_ptr<SkAtlasTextTarget> fTarget; 158fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot sk_sp<SkAtlasTextContext> fContext; 159fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 160fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot typedef GM INHERITED; 161fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot}; 162fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 163fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotconstexpr int AtlasTextGM::kSize; 164fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 165fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot////////////////////////////////////////////////////////////////////////////// 166fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 167fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team RobotDEF_GM(return new AtlasTextGM;) 168fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 169fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#endif 170