void SkBaseDevice::drawAtlas(const SkDraw& draw, const SkImage* atlas, const SkRSXform xform[], const SkRect tex[], const SkColor colors[], int count, SkXfermode::Mode mode, const SkPaint& paint) { SkPath path; path.setIsVolatile(true); for (int i = 0; i < count; ++i) { SkPoint quad[4]; xform[i].toQuad(tex[i].width(), tex[i].height(), quad); SkMatrix localM; localM.setRSXform(xform[i]); localM.preTranslate(-tex[i].left(), -tex[i].top()); SkPaint pnt(paint); sk_sp<SkShader> shader = atlas->makeShader(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, &localM); if (!shader) { break; } pnt.setShader(std::move(shader)); if (colors) { pnt.setColorFilter(SkColorFilter::MakeModeFilter(colors[i], mode)); } path.rewind(); path.addPoly(quad, 4, true); path.setConvexity(SkPath::kConvex_Convexity); this->drawPath(draw, path, pnt, nullptr, true); } }
void SkBaseDevice::drawAtlas(const SkDraw& draw, const SkImage* atlas, const SkRSXform xform[], const SkRect tex[], const SkColor colors[], int count, SkXfermode::Mode mode, const SkPaint& paint) { SkPath path; path.setIsVolatile(true); for (int i = 0; i < count; ++i) { SkPoint quad[4]; xform[i].toQuad(tex[i].width(), tex[i].height(), quad); SkMatrix localM; localM.setRSXform(xform[i]); localM.preTranslate(-tex[i].left(), -tex[i].top()); SkPaint pnt(paint); pnt.setShader(atlas->newShader(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, &localM))->unref(); if (colors && colors[i] != SK_ColorWHITE) { SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(colors[i], mode)); pnt.setColorFilter(cf); } path.rewind(); path.addPoly(quad, 4, true); path.setConvexity(SkPath::kConvex_Convexity); this->drawPath(draw, path, pnt, NULL, true); } }
void onDraw(SkCanvas* canvas) override { SkPaint p; p.setColor(SK_ColorRED); p.setAntiAlias(true); canvas->clear(0xFFFFFFFF); canvas->save(); SkScalar y = 0; canvas->translate(0, y); canvas->rotate(1); canvas->drawRect({ 20, 20, 200, 200 }, p); canvas->restore(); y += 200; canvas->translate(0, y); canvas->rotate(1); canvas->drawRect({ 20, 20, 20.2f, 200 }, p); canvas->drawRect({ 20, 200, 200, 200.1f }, p); canvas->drawCircle(100, 100, 30, p); canvas->restore(); // The following path is empty but it'll reveal bug chrome:662914 SkPath path; path.moveTo(SkBits2Float(0x429b9d5c), SkBits2Float(0x4367a041)); // 77.8073f, 231.626f // 77.8075f, 231.626f, 77.8074f, 231.625f, 77.8073f, 231.625f path.cubicTo(SkBits2Float(0x429b9d71), SkBits2Float(0x4367a022), SkBits2Float(0x429b9d64), SkBits2Float(0x4367a009), SkBits2Float(0x429b9d50), SkBits2Float(0x43679ff2)); path.lineTo(SkBits2Float(0x429b9d5c), SkBits2Float(0x4367a041)); // 77.8073f, 231.626f path.close(); canvas->drawPath(path, p); // The following path reveals a subtle SkAnalyticQuadraticEdge::updateQuadratic bug: // we should not use any snapped y for the intermediate values whose error may accumulate; // snapping should only be allowed once before updateLine. path.reset(); path.moveTo(SkBits2Float(0x434ba71e), SkBits2Float(0x438a06d0)); // 203.653f, 276.053f path.lineTo(SkBits2Float(0x43492a74), SkBits2Float(0x4396d70d)); // 201.166f, 301.68f // 200.921f, 304.207f, 196.939f, 303.82f, 0.707107f path.conicTo(SkBits2Float(0x4348ebaf), SkBits2Float(0x43981a75), SkBits2Float(0x4344f079), SkBits2Float(0x4397e900), SkBits2Float(0x3f3504f3)); path.close(); // Manually setting convexity is required. Otherwise, this path will be considered concave. path.setConvexity(SkPath::kConvex_Convexity); canvas->drawPath(path, p); // skbug.com/7573 y += 200; canvas->translate(0, y); p.setAntiAlias(true); path.reset(); path.moveTo(1.98009784f, 9.0162744f); path.lineTo(47.843992f, 10.1922744f); path.lineTo(47.804008f, 11.7597256f); path.lineTo(1.93990216f, 10.5837256f); canvas->drawPath(path, p); canvas->restore(); }