| /* libs/android_runtime/android/graphics/Paint.cpp | 
 | ** | 
 | ** Copyright 2006, The Android Open Source Project | 
 | ** | 
 | ** Licensed under the Apache License, Version 2.0 (the "License"); | 
 | ** you may not use this file except in compliance with the License. | 
 | ** You may obtain a copy of the License at | 
 | ** | 
 | **     http://www.apache.org/licenses/LICENSE-2.0 | 
 | ** | 
 | ** Unless required by applicable law or agreed to in writing, software | 
 | ** distributed under the License is distributed on an "AS IS" BASIS, | 
 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 | ** See the License for the specific language governing permissions and | 
 | ** limitations under the License. | 
 | */ | 
 |  | 
 | #undef LOG_TAG | 
 | #define LOG_TAG "Paint" | 
 |  | 
 | #include <utils/Log.h> | 
 |  | 
 | #include "GraphicsJNI.h" | 
 | #include <nativehelper/ScopedStringChars.h> | 
 | #include <nativehelper/ScopedUtfChars.h> | 
 | #include <nativehelper/ScopedPrimitiveArray.h> | 
 |  | 
 | #include "SkColorFilter.h" | 
 | #include "SkColorSpace.h" | 
 | #include "SkFont.h" | 
 | #include "SkFontMetrics.h" | 
 | #include "SkFontTypes.h" | 
 | #include "SkMaskFilter.h" | 
 | #include "SkPath.h" | 
 | #include "SkPathEffect.h" | 
 | #include "SkPathUtils.h" | 
 | #include "SkShader.h" | 
 | #include "SkBlendMode.h" | 
 | #include "unicode/uloc.h" | 
 | #include "utils/Blur.h" | 
 |  | 
 | #include <hwui/BlurDrawLooper.h> | 
 | #include <hwui/MinikinSkia.h> | 
 | #include <hwui/MinikinUtils.h> | 
 | #include <hwui/Paint.h> | 
 | #include <hwui/Typeface.h> | 
 | #include <minikin/GraphemeBreak.h> | 
 | #include <minikin/LocaleList.h> | 
 | #include <minikin/Measurement.h> | 
 | #include <minikin/MinikinPaint.h> | 
 | #include <unicode/utf16.h> | 
 |  | 
 | #include <cassert> | 
 | #include <cstring> | 
 | #include <memory> | 
 | #include <vector> | 
 |  | 
 | namespace android { | 
 |  | 
 | static void getPosTextPath(const SkFont& font, const uint16_t glyphs[], int count, | 
 |                            const SkPoint pos[], SkPath* dst) { | 
 |     dst->reset(); | 
 |     struct Rec { | 
 |         SkPath* fDst; | 
 |         const SkPoint* fPos; | 
 |     } rec = { dst, pos }; | 
 |     font.getPaths(glyphs, count, [](const SkPath* src, const SkMatrix& mx, void* ctx) { | 
 |         Rec* rec = (Rec*)ctx; | 
 |         if (src) { | 
 |             SkMatrix tmp(mx); | 
 |             tmp.postTranslate(rec->fPos->fX, rec->fPos->fY); | 
 |             rec->fDst->addPath(*src, tmp); | 
 |         } | 
 |         rec->fPos += 1; | 
 |     }, &rec); | 
 | } | 
 |  | 
 | namespace PaintGlue { | 
 |     enum MoveOpt { | 
 |         AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT | 
 |     }; | 
 |  | 
 |     static void deletePaint(Paint* paint) { | 
 |         delete paint; | 
 |     } | 
 |  | 
 |     static jlong getNativeFinalizer(JNIEnv*, jobject) { | 
 |         return static_cast<jlong>(reinterpret_cast<uintptr_t>(&deletePaint)); | 
 |     } | 
 |  | 
 |     static jlong init(JNIEnv* env, jobject) { | 
 |         return reinterpret_cast<jlong>(new Paint); | 
 |     } | 
 |  | 
 |     static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         Paint* obj = new Paint(*paint); | 
 |         return reinterpret_cast<jlong>(obj); | 
 |     } | 
 |  | 
 |     static int breakText(JNIEnv* env, const Paint& paint, const Typeface* typeface, | 
 |             const jchar text[], int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured, | 
 |             const bool forwardScan) { | 
 |         size_t measuredCount = 0; | 
 |         float measured = 0; | 
 |  | 
 |         std::unique_ptr<float[]> advancesArray(new float[count]); | 
 |         MinikinUtils::measureText(&paint, static_cast<minikin::Bidi>(bidiFlags), typeface, text, | 
 |                 0, count, count, advancesArray.get()); | 
 |  | 
 |         for (int i = 0; i < count; i++) { | 
 |             // traverse in the given direction | 
 |             int index = forwardScan ? i : (count - i - 1); | 
 |             float width = advancesArray[index]; | 
 |             if (measured + width > maxWidth) { | 
 |                 break; | 
 |             } | 
 |             // properly handle clusters when scanning backwards | 
 |             if (forwardScan || width != 0.0f) { | 
 |                 measuredCount = i + 1; | 
 |             } | 
 |             measured += width; | 
 |         } | 
 |  | 
 |         if (jmeasured && env->GetArrayLength(jmeasured) > 0) { | 
 |             AutoJavaFloatArray autoMeasured(env, jmeasured, 1); | 
 |             jfloat* array = autoMeasured.ptr(); | 
 |             array[0] = measured; | 
 |         } | 
 |         return measuredCount; | 
 |     } | 
 |  | 
 |     static jint breakTextC(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray jtext, | 
 |             jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { | 
 |         NPE_CHECK_RETURN_ZERO(env, jtext); | 
 |  | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |  | 
 |         bool forwardTextDirection; | 
 |         if (count < 0) { | 
 |             forwardTextDirection = false; | 
 |             count = -count; | 
 |         } | 
 |         else { | 
 |             forwardTextDirection = true; | 
 |         } | 
 |  | 
 |         if ((index < 0) || (index + count > env->GetArrayLength(jtext))) { | 
 |             doThrowAIOOBE(env); | 
 |             return 0; | 
 |         } | 
 |  | 
 |         const jchar* text = env->GetCharArrayElements(jtext, nullptr); | 
 |         count = breakText(env, *paint, typeface, text + index, count, maxWidth, | 
 |                           bidiFlags, jmeasuredWidth, forwardTextDirection); | 
 |         env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text), | 
 |                                       JNI_ABORT); | 
 |         return count; | 
 |     } | 
 |  | 
 |     static jint breakTextS(JNIEnv* env, jobject clazz, jlong paintHandle, jstring jtext, | 
 |             jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { | 
 |         NPE_CHECK_RETURN_ZERO(env, jtext); | 
 |  | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |  | 
 |         int count = env->GetStringLength(jtext); | 
 |         const jchar* text = env->GetStringChars(jtext, nullptr); | 
 |         count = breakText(env, *paint, typeface, text, count, maxWidth, bidiFlags, jmeasuredWidth, forwards); | 
 |         env->ReleaseStringChars(jtext, text); | 
 |         return count; | 
 |     } | 
 |  | 
 |     static jfloat doTextAdvances(JNIEnv *env, Paint *paint, const Typeface* typeface, | 
 |             const jchar *text, jint start, jint count, jint contextCount, jint bidiFlags, | 
 |             jfloatArray advances, jint advancesIndex) { | 
 |         NPE_CHECK_RETURN_ZERO(env, text); | 
 |  | 
 |         if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { | 
 |             doThrowAIOOBE(env); | 
 |             return 0; | 
 |         } | 
 |         if (count == 0) { | 
 |             return 0; | 
 |         } | 
 |         if (advances) { | 
 |             size_t advancesLength = env->GetArrayLength(advances); | 
 |             if ((size_t)(count  + advancesIndex) > advancesLength) { | 
 |                 doThrowAIOOBE(env); | 
 |                 return 0; | 
 |             } | 
 |         } | 
 |         std::unique_ptr<jfloat[]> advancesArray; | 
 |         if (advances) { | 
 |             advancesArray.reset(new jfloat[count]); | 
 |         } | 
 |         const float advance = MinikinUtils::measureText(paint, | 
 |                 static_cast<minikin::Bidi>(bidiFlags), typeface, text, start, count, contextCount, | 
 |                 advancesArray.get()); | 
 |         if (advances) { | 
 |             env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray.get()); | 
 |         } | 
 |         return advance; | 
 |     } | 
 |  | 
 |     static jfloat getTextAdvances___CIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, | 
 |             jcharArray text, jint index, jint count, jint contextIndex, jint contextCount, | 
 |             jint bidiFlags, jfloatArray advances, jint advancesIndex) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         jchar* textArray = env->GetCharArrayElements(text, nullptr); | 
 |         jfloat result = doTextAdvances(env, paint, typeface, textArray + contextIndex, | 
 |                 index - contextIndex, count, contextCount, bidiFlags, advances, advancesIndex); | 
 |         env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); | 
 |         return result; | 
 |     } | 
 |  | 
 |     static jfloat getTextAdvances__StringIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, | 
 |             jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint bidiFlags, | 
 |             jfloatArray advances, jint advancesIndex) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         const jchar* textArray = env->GetStringChars(text, nullptr); | 
 |         jfloat result = doTextAdvances(env, paint, typeface, textArray + contextStart, | 
 |                 start - contextStart, end - start, contextEnd - contextStart, bidiFlags, | 
 |                 advances, advancesIndex); | 
 |         env->ReleaseStringChars(text, textArray); | 
 |         return result; | 
 |     } | 
 |  | 
 |     static jint doTextRunCursor(JNIEnv *env, Paint* paint, const Typeface* typeface, | 
 |             const jchar *text, jint start, jint count, jint dir, jint offset, jint opt) { | 
 |         minikin::GraphemeBreak::MoveOpt moveOpt = minikin::GraphemeBreak::MoveOpt(opt); | 
 |         minikin::Bidi bidiFlags = dir == 1 ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR; | 
 |         std::unique_ptr<float[]> advancesArray(new float[count]); | 
 |         MinikinUtils::measureText(paint, bidiFlags, typeface, text, start, count, start + count, | 
 |                 advancesArray.get()); | 
 |         size_t result = minikin::GraphemeBreak::getTextRunCursor(advancesArray.get(), text, | 
 |                 start, count, offset, moveOpt); | 
 |         return static_cast<jint>(result); | 
 |     } | 
 |  | 
 |     static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text, | 
 |             jint contextStart, jint contextCount, jint dir, jint offset, jint cursorOpt) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         jchar* textArray = env->GetCharArrayElements(text, nullptr); | 
 |         jint result = doTextRunCursor(env, paint, typeface, textArray, | 
 |                 contextStart, contextCount, dir, offset, cursorOpt); | 
 |         env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); | 
 |         return result; | 
 |     } | 
 |  | 
 |     static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle, | 
 |             jstring text, jint contextStart, jint contextEnd, jint dir, jint offset, | 
 |             jint cursorOpt) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         const jchar* textArray = env->GetStringChars(text, nullptr); | 
 |         jint result = doTextRunCursor(env, paint, typeface, textArray, | 
 |                 contextStart, contextEnd - contextStart, dir, offset, cursorOpt); | 
 |         env->ReleaseStringChars(text, textArray); | 
 |         return result; | 
 |     } | 
 |  | 
 |     class GetTextFunctor { | 
 |     public: | 
 |         GetTextFunctor(const minikin::Layout& layout, SkPath* path, jfloat x, jfloat y, | 
 |                     Paint* paint, uint16_t* glyphs, SkPoint* pos) | 
 |                 : layout(layout), path(path), x(x), y(y), paint(paint), glyphs(glyphs), pos(pos) { | 
 |         } | 
 |  | 
 |         void operator()(size_t start, size_t end) { | 
 |             for (size_t i = start; i < end; i++) { | 
 |                 glyphs[i] = layout.getGlyphId(i); | 
 |                 pos[i].fX = x + layout.getX(i); | 
 |                 pos[i].fY = y + layout.getY(i); | 
 |             } | 
 |             const SkFont& font = paint->getSkFont(); | 
 |             if (start == 0) { | 
 |                 getPosTextPath(font, glyphs, end, pos, path); | 
 |             } else { | 
 |                 getPosTextPath(font, glyphs + start, end - start, pos + start, &tmpPath); | 
 |                 path->addPath(tmpPath); | 
 |             } | 
 |         } | 
 |     private: | 
 |         const minikin::Layout& layout; | 
 |         SkPath* path; | 
 |         jfloat x; | 
 |         jfloat y; | 
 |         Paint* paint; | 
 |         uint16_t* glyphs; | 
 |         SkPoint* pos; | 
 |         SkPath tmpPath; | 
 |     }; | 
 |  | 
 |     static void getTextPath(JNIEnv* env, Paint* paint, const Typeface* typeface, const jchar* text, | 
 |             jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) { | 
 |         minikin::Layout layout = MinikinUtils::doLayout( | 
 |                 paint, static_cast<minikin::Bidi>(bidiFlags), typeface, | 
 |                 text, count,  // text buffer | 
 |                 0, count,  // draw range | 
 |                 0, count,  // context range | 
 |                 nullptr); | 
 |         size_t nGlyphs = layout.nGlyphs(); | 
 |         uint16_t* glyphs = new uint16_t[nGlyphs]; | 
 |         SkPoint* pos = new SkPoint[nGlyphs]; | 
 |  | 
 |         x += MinikinUtils::xOffsetForTextAlign(paint, layout); | 
 |         Paint::Align align = paint->getTextAlign(); | 
 |         paint->setTextAlign(Paint::kLeft_Align); | 
 |         GetTextFunctor f(layout, path, x, y, paint, glyphs, pos); | 
 |         MinikinUtils::forFontRun(layout, paint, f); | 
 |         paint->setTextAlign(align); | 
 |         delete[] glyphs; | 
 |         delete[] pos; | 
 |     } | 
 |  | 
 |     static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags, | 
 |             jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         SkPath* path = reinterpret_cast<SkPath*>(pathHandle); | 
 |         const jchar* textArray = env->GetCharArrayElements(text, nullptr); | 
 |         getTextPath(env, paint, typeface, textArray + index, count, bidiFlags, x, y, path); | 
 |         env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); | 
 |     } | 
 |  | 
 |     static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags, | 
 |             jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         SkPath* path = reinterpret_cast<SkPath*>(pathHandle); | 
 |         const jchar* textArray = env->GetStringChars(text, nullptr); | 
 |         getTextPath(env, paint, typeface, textArray + start, end - start, bidiFlags, x, y, path); | 
 |         env->ReleaseStringChars(text, textArray); | 
 |     } | 
 |  | 
 |     static void doTextBounds(JNIEnv* env, const jchar* text, int count, jobject bounds, | 
 |             const Paint& paint, const Typeface* typeface, jint bidiFlagsInt) { | 
 |         SkRect  r; | 
 |         SkIRect ir; | 
 |  | 
 |         minikin::MinikinRect rect; | 
 |         minikin::Bidi bidiFlags = static_cast<minikin::Bidi>(bidiFlagsInt); | 
 |         MinikinUtils::getBounds(&paint, bidiFlags, typeface, text, count, &rect); | 
 |         r.fLeft = rect.mLeft; | 
 |         r.fTop = rect.mTop; | 
 |         r.fRight = rect.mRight; | 
 |         r.fBottom = rect.mBottom; | 
 |         r.roundOut(&ir); | 
 |         GraphicsJNI::irect_to_jrect(ir, env, bounds); | 
 |     } | 
 |  | 
 |     static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, jstring text, jint start, | 
 |             jint end, jint bidiFlags, jobject bounds) { | 
 |         const Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         const jchar* textArray = env->GetStringChars(text, nullptr); | 
 |         doTextBounds(env, textArray + start, end - start, bounds, *paint, typeface, bidiFlags); | 
 |         env->ReleaseStringChars(text, textArray); | 
 |     } | 
 |  | 
 |     static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, jcharArray text, | 
 |             jint index, jint count, jint bidiFlags, jobject bounds) { | 
 |         const Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         const jchar* textArray = env->GetCharArrayElements(text, nullptr); | 
 |         doTextBounds(env, textArray + index, count, bounds, *paint, typeface, bidiFlags); | 
 |         env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), | 
 |                                       JNI_ABORT); | 
 |     } | 
 |  | 
 |     // Returns true if the given string is exact one pair of regional indicators. | 
 |     static bool isFlag(const jchar* str, size_t length) { | 
 |         const jchar RI_LEAD_SURROGATE = 0xD83C; | 
 |         const jchar RI_TRAIL_SURROGATE_MIN = 0xDDE6; | 
 |         const jchar RI_TRAIL_SURROGATE_MAX = 0xDDFF; | 
 |  | 
 |         if (length != 4) { | 
 |             return false; | 
 |         } | 
 |         if (str[0] != RI_LEAD_SURROGATE || str[2] != RI_LEAD_SURROGATE) { | 
 |             return false; | 
 |         } | 
 |         return RI_TRAIL_SURROGATE_MIN <= str[1] && str[1] <= RI_TRAIL_SURROGATE_MAX && | 
 |             RI_TRAIL_SURROGATE_MIN <= str[3] && str[3] <= RI_TRAIL_SURROGATE_MAX; | 
 |     } | 
 |  | 
 |     static jboolean layoutContainsNotdef(const minikin::Layout& layout) { | 
 |         for (size_t i = 0; i < layout.nGlyphs(); i++) { | 
 |             if (layout.getGlyphId(i) == 0) { | 
 |                 return true; | 
 |             } | 
 |         } | 
 |         return false; | 
 |     } | 
 |  | 
 |     // Don't count glyphs that are the recommended "space" glyph and are zero width. | 
 |     // This logic makes assumptions about HarfBuzz layout, but does correctly handle | 
 |     // cases where ligatures form and zero width space glyphs are left in as | 
 |     // placeholders. | 
 |     static size_t countNonSpaceGlyphs(const minikin::Layout& layout) { | 
 |         size_t count = 0; | 
 |         static unsigned int kSpaceGlyphId = 3; | 
 |         for (size_t i = 0; i < layout.nGlyphs(); i++) { | 
 |             if (layout.getGlyphId(i) != kSpaceGlyphId || layout.getCharAdvance(i) != 0.0) { | 
 |                 count++; | 
 |             } | 
 |         } | 
 |         return count; | 
 |     } | 
 |  | 
 |     static jboolean hasGlyph(JNIEnv *env, jclass, jlong paintHandle, jint bidiFlags, | 
 |             jstring string) { | 
 |         const Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         ScopedStringChars str(env, string); | 
 |  | 
 |         /* Start by rejecting unsupported base code point and variation selector pairs. */ | 
 |         size_t nChars = 0; | 
 |         const uint32_t kStartOfString = 0xFFFFFFFF; | 
 |         uint32_t prevCp = kStartOfString; | 
 |         for (size_t i = 0; i < str.size(); i++) { | 
 |             jchar cu = str[i]; | 
 |             uint32_t cp = cu; | 
 |             if (U16_IS_TRAIL(cu)) { | 
 |                 // invalid UTF-16, unpaired trailing surrogate | 
 |                 return false; | 
 |             } else if (U16_IS_LEAD(cu)) { | 
 |                 if (i + 1 == str.size()) { | 
 |                     // invalid UTF-16, unpaired leading surrogate at end of string | 
 |                     return false; | 
 |                 } | 
 |                 i++; | 
 |                 jchar cu2 = str[i]; | 
 |                 if (!U16_IS_TRAIL(cu2)) { | 
 |                     // invalid UTF-16, unpaired leading surrogate | 
 |                     return false; | 
 |                 } | 
 |                 cp = U16_GET_SUPPLEMENTARY(cu, cu2); | 
 |             } | 
 |  | 
 |             if (prevCp != kStartOfString && | 
 |                 ((0xFE00 <= cp && cp <= 0xFE0F) || (0xE0100 <= cp && cp <= 0xE01EF))) { | 
 |                 bool hasVS = MinikinUtils::hasVariationSelector(typeface, prevCp, cp); | 
 |                 if (!hasVS) { | 
 |                     // No font has a glyph for the code point and variation selector pair. | 
 |                     return false; | 
 |                 } else if (nChars == 1 && i + 1 == str.size()) { | 
 |                     // The string is just a codepoint and a VS, we have an authoritative answer | 
 |                     return true; | 
 |                 } | 
 |             } | 
 |             nChars++; | 
 |             prevCp = cp; | 
 |         } | 
 |         minikin::Layout layout = MinikinUtils::doLayout(paint, | 
 |                 static_cast<minikin::Bidi>(bidiFlags), typeface, | 
 |                 str.get(), str.size(),  // text buffer | 
 |                 0, str.size(),  // draw range | 
 |                 0, str.size(),  // context range | 
 |                 nullptr); | 
 |         size_t nGlyphs = countNonSpaceGlyphs(layout); | 
 |         if (nGlyphs != 1 && nChars > 1) { | 
 |             // multiple-character input, and was not a ligature | 
 |             // TODO: handle ZWJ/ZWNJ characters specially so we can detect certain ligatures | 
 |             // in joining scripts, such as Arabic and Mongolian. | 
 |             return false; | 
 |         } | 
 |  | 
 |         if (nGlyphs == 0 || layoutContainsNotdef(layout)) { | 
 |             return false;  // The collection doesn't have a glyph. | 
 |         } | 
 |  | 
 |         if (nChars == 2 && isFlag(str.get(), str.size())) { | 
 |             // Some font may have a special glyph for unsupported regional indicator pairs. | 
 |             // To return false for this case, need to compare the glyph id with the one of ZZ | 
 |             // since ZZ is reserved for unknown or invalid territory. | 
 |             // U+1F1FF (REGIONAL INDICATOR SYMBOL LETTER Z) is \uD83C\uDDFF in UTF16. | 
 |             static const jchar ZZ_FLAG_STR[] = { 0xD83C, 0xDDFF, 0xD83C, 0xDDFF }; | 
 |             minikin::Layout zzLayout = MinikinUtils::doLayout(paint, | 
 |                     static_cast<minikin::Bidi>(bidiFlags), typeface, | 
 |                     ZZ_FLAG_STR, 4,  // text buffer | 
 |                     0, 4,  // draw range | 
 |                     0, 4,  // context range | 
 |                     nullptr); | 
 |             if (zzLayout.nGlyphs() != 1 || layoutContainsNotdef(zzLayout)) { | 
 |                 // The font collection doesn't have a glyph for unknown flag. Just return true. | 
 |                 return true; | 
 |             } | 
 |             return zzLayout.getGlyphId(0) != layout.getGlyphId(0); | 
 |         } | 
 |         return true; | 
 |     } | 
 |  | 
 |     static jfloat doRunAdvance(JNIEnv* env, const Paint* paint, const Typeface* typeface, | 
 |                                const jchar buf[], jint start, jint count, jint bufSize, | 
 |                                jboolean isRtl, jint offset, jfloatArray advances, | 
 |                                jint advancesIndex) { | 
 |         if (advances) { | 
 |             size_t advancesLength = env->GetArrayLength(advances); | 
 |             if ((size_t)(count + advancesIndex) > advancesLength) { | 
 |                 doThrowAIOOBE(env); | 
 |                 return 0; | 
 |             } | 
 |         } | 
 |         minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR; | 
 |         if (offset == start + count && advances == nullptr) { | 
 |             return MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, | 
 |                     bufSize, nullptr); | 
 |         } | 
 |         std::unique_ptr<float[]> advancesArray(new float[count]); | 
 |         MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, bufSize, | 
 |                 advancesArray.get()); | 
 |  | 
 |         float result = minikin::getRunAdvance(advancesArray.get(), buf, start, count, offset); | 
 |         if (advances) { | 
 |             minikin::distributeAdvances(advancesArray.get(), buf, start, count); | 
 |             env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray.get()); | 
 |         } | 
 |         return result; | 
 |     } | 
 |  | 
 |     static jfloat getRunAdvance___CIIIIZI_F(JNIEnv *env, jclass, jlong paintHandle, jcharArray text, | 
 |             jint start, jint end, jint contextStart, jint contextEnd, jboolean isRtl, jint offset) { | 
 |         const Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         ScopedCharArrayRO textArray(env, text); | 
 |         jfloat result = doRunAdvance(env, paint, typeface, textArray.get() + contextStart, | 
 |                                      start - contextStart, end - start, contextEnd - contextStart, | 
 |                                      isRtl, offset - contextStart, nullptr, 0); | 
 |         return result; | 
 |     } | 
 |  | 
 |     static jfloat getRunCharacterAdvance___CIIIIZI_FI_F(JNIEnv* env, jclass, jlong paintHandle, | 
 |                                                         jcharArray text, jint start, jint end, | 
 |                                                         jint contextStart, jint contextEnd, | 
 |                                                         jboolean isRtl, jint offset, | 
 |                                                         jfloatArray advances, jint advancesIndex) { | 
 |         const Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         ScopedCharArrayRO textArray(env, text); | 
 |         jfloat result = doRunAdvance(env, paint, typeface, textArray.get() + contextStart, | 
 |                                      start - contextStart, end - start, contextEnd - contextStart, | 
 |                                      isRtl, offset - contextStart, advances, advancesIndex); | 
 |         return result; | 
 |     } | 
 |  | 
 |     static jint doOffsetForAdvance(const Paint* paint, const Typeface* typeface, const jchar buf[], | 
 |             jint start, jint count, jint bufSize, jboolean isRtl, jfloat advance) { | 
 |         minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR; | 
 |         std::unique_ptr<float[]> advancesArray(new float[count]); | 
 |         MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, bufSize, | 
 |                 advancesArray.get()); | 
 |         return minikin::getOffsetForAdvance(advancesArray.get(), buf, start, count, advance); | 
 |     } | 
 |  | 
 |     static jint getOffsetForAdvance___CIIIIZF_I(JNIEnv *env, jclass, jlong paintHandle, | 
 |             jcharArray text, jint start, jint end, jint contextStart, jint contextEnd, | 
 |             jboolean isRtl, jfloat advance) { | 
 |         const Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         ScopedCharArrayRO textArray(env, text); | 
 |         jint result = doOffsetForAdvance(paint, typeface, textArray.get() + contextStart, | 
 |                 start - contextStart, end - start, contextEnd - contextStart, isRtl, advance); | 
 |         result += contextStart; | 
 |         return result; | 
 |     } | 
 |  | 
 |     static SkScalar getMetricsInternal(jlong paintHandle, SkFontMetrics *metrics) { | 
 |         const int kElegantTop = 2500; | 
 |         const int kElegantBottom = -1000; | 
 |         const int kElegantAscent = 1900; | 
 |         const int kElegantDescent = -500; | 
 |         const int kElegantLeading = 0; | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         SkFont* font = &paint->getSkFont(); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         typeface = Typeface::resolveDefault(typeface); | 
 |         minikin::FakedFont baseFont = typeface->fFontCollection->baseFontFaked(typeface->fStyle); | 
 |         float saveSkewX = font->getSkewX(); | 
 |         bool savefakeBold = font->isEmbolden(); | 
 |         MinikinFontSkia::populateSkFont(font, baseFont.font->typeface().get(), baseFont.fakery); | 
 |         SkScalar spacing = font->getMetrics(metrics); | 
 |         // The populateSkPaint call may have changed fake bold / text skew | 
 |         // because we want to measure with those effects applied, so now | 
 |         // restore the original settings. | 
 |         font->setSkewX(saveSkewX); | 
 |         font->setEmbolden(savefakeBold); | 
 |         if (paint->getFamilyVariant() == minikin::FamilyVariant::ELEGANT) { | 
 |             SkScalar size = font->getSize(); | 
 |             metrics->fTop = -size * kElegantTop / 2048; | 
 |             metrics->fBottom = -size * kElegantBottom / 2048; | 
 |             metrics->fAscent = -size * kElegantAscent / 2048; | 
 |             metrics->fDescent = -size * kElegantDescent / 2048; | 
 |             metrics->fLeading = size * kElegantLeading / 2048; | 
 |             spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading; | 
 |         } | 
 |         return spacing; | 
 |     } | 
 |  | 
 |     static void doFontExtent(JNIEnv* env, jlong paintHandle, const jchar buf[], jint start, | 
 |                              jint count, jint bufSize, jboolean isRtl, jobject fmi) { | 
 |         const Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         const Typeface* typeface = paint->getAndroidTypeface(); | 
 |         minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR; | 
 |         minikin::MinikinExtent extent = | 
 |                 MinikinUtils::getFontExtent(paint, bidiFlags, typeface, buf, start, count, bufSize); | 
 |  | 
 |         SkFontMetrics metrics; | 
 |         getMetricsInternal(paintHandle, &metrics); | 
 |  | 
 |         metrics.fAscent = extent.ascent; | 
 |         metrics.fDescent = extent.descent; | 
 |  | 
 |         // If top/bottom is narrower than ascent/descent, adjust top/bottom to ascent/descent. | 
 |         metrics.fTop = std::min(metrics.fAscent, metrics.fTop); | 
 |         metrics.fBottom = std::max(metrics.fDescent, metrics.fBottom); | 
 |  | 
 |         GraphicsJNI::set_metrics_int(env, fmi, metrics); | 
 |     } | 
 |  | 
 |     static void getFontMetricsIntForText___C(JNIEnv* env, jclass, jlong paintHandle, | 
 |                                              jcharArray text, jint start, jint count, jint ctxStart, | 
 |                                              jint ctxCount, jboolean isRtl, jobject fmi) { | 
 |         ScopedCharArrayRO textArray(env, text); | 
 |  | 
 |         doFontExtent(env, paintHandle, textArray.get() + ctxStart, start - ctxStart, count, | 
 |                      ctxCount, isRtl, fmi); | 
 |     } | 
 |  | 
 |     static void getFontMetricsIntForText___String(JNIEnv* env, jclass, jlong paintHandle, | 
 |                                                   jstring text, jint start, jint count, | 
 |                                                   jint ctxStart, jint ctxCount, jboolean isRtl, | 
 |                                                   jobject fmi) { | 
 |         ScopedStringChars textChars(env, text); | 
 |  | 
 |         doFontExtent(env, paintHandle, textChars.get() + ctxStart, start - ctxStart, count, | 
 |                      ctxCount, isRtl, fmi); | 
 |     } | 
 |  | 
 |     // ------------------ @FastNative --------------------------- | 
 |  | 
 |     static jint setTextLocales(JNIEnv* env, jobject clazz, jlong objHandle, jstring locales) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         ScopedUtfChars localesChars(env, locales); | 
 |         jint minikinLocaleListId = minikin::registerLocaleList(localesChars.c_str()); | 
 |         obj->setMinikinLocaleListId(minikinLocaleListId); | 
 |         return minikinLocaleListId; | 
 |     } | 
 |  | 
 |     static void setFontFeatureSettings(JNIEnv* env, jobject clazz, jlong paintHandle, | 
 |                                        jstring settings) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         if (!settings) { | 
 |             paint->setFontFeatureSettings(std::string()); | 
 |         } else { | 
 |             ScopedUtfChars settingsChars(env, settings); | 
 |             paint->setFontFeatureSettings(std::string(settingsChars.c_str(), settingsChars.size())); | 
 |         } | 
 |     } | 
 |  | 
 |     static jfloat getFontMetrics(JNIEnv* env, jobject, jlong paintHandle, jobject metricsObj) { | 
 |         SkFontMetrics metrics; | 
 |         SkScalar spacing = getMetricsInternal(paintHandle, &metrics); | 
 |         GraphicsJNI::set_metrics(env, metricsObj, metrics); | 
 |         return SkScalarToFloat(spacing); | 
 |     } | 
 |  | 
 |     static jint getFontMetricsInt(JNIEnv* env, jobject, jlong paintHandle, jobject metricsObj) { | 
 |         SkFontMetrics metrics; | 
 |         getMetricsInternal(paintHandle, &metrics); | 
 |         return GraphicsJNI::set_metrics_int(env, metricsObj, metrics); | 
 |     } | 
 |  | 
 |  | 
 |     // ------------------ @CriticalNative --------------------------- | 
 |  | 
 |     static void reset(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) { | 
 |         reinterpret_cast<Paint*>(objHandle)->reset(); | 
 |     } | 
 |  | 
 |     static void assign(CRITICAL_JNI_PARAMS_COMMA jlong dstPaintHandle, jlong srcPaintHandle) { | 
 |         Paint* dst = reinterpret_cast<Paint*>(dstPaintHandle); | 
 |         const Paint* src = reinterpret_cast<Paint*>(srcPaintHandle); | 
 |         *dst = *src; | 
 |     } | 
 |  | 
 |     static jint getFlags(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         uint32_t flags = reinterpret_cast<Paint*>(paintHandle)->getJavaFlags(); | 
 |         return static_cast<jint>(flags); | 
 |     } | 
 |  | 
 |     static void setFlags(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint flags) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setJavaFlags(flags); | 
 |     } | 
 |  | 
 |     static jint getHinting(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         return (SkFontHinting)reinterpret_cast<Paint*>(paintHandle)->getSkFont().getHinting() | 
 |                 == SkFontHinting::kNone ? 0 : 1; | 
 |     } | 
 |  | 
 |     static void setHinting(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint mode) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->getSkFont().setHinting( | 
 |                 mode == 0 ? SkFontHinting::kNone : SkFontHinting::kNormal); | 
 |     } | 
 |  | 
 |     static void setAntiAlias(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean aa) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setAntiAlias(aa); | 
 |     } | 
 |  | 
 |     static void setLinearText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean linearText) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->getSkFont().setLinearMetrics(linearText); | 
 |     } | 
 |  | 
 |     static void setSubpixelText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean subpixelText) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSubpixel(subpixelText); | 
 |     } | 
 |  | 
 |     static void setUnderlineText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean underlineText) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setUnderline(underlineText); | 
 |     } | 
 |  | 
 |     static void setStrikeThruText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean strikeThruText) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setStrikeThru(strikeThruText); | 
 |     } | 
 |  | 
 |     static void setFakeBoldText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean fakeBoldText) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->getSkFont().setEmbolden(fakeBoldText); | 
 |     } | 
 |  | 
 |     static void setFilterBitmap(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean filterBitmap) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setFilterBitmap(filterBitmap); | 
 |     } | 
 |  | 
 |     static void setDither(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean dither) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setDither(dither); | 
 |     } | 
 |  | 
 |     static jint getStyle(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         return static_cast<jint>(obj->getStyle()); | 
 |     } | 
 |  | 
 |     static void setStyle(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint styleHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         Paint::Style style = static_cast<Paint::Style>(styleHandle); | 
 |         obj->setStyle(style); | 
 |     } | 
 |  | 
 |     static void setColorLong(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jlong colorSpaceHandle, | 
 |             jlong colorLong) { | 
 |         SkColor4f color = GraphicsJNI::convertColorLong(colorLong); | 
 |         sk_sp<SkColorSpace> cs = GraphicsJNI::getNativeColorSpace(colorSpaceHandle); | 
 |         reinterpret_cast<Paint*>(paintHandle)->setColor4f(color, cs.get()); | 
 |     } | 
 |  | 
 |     static void setColor(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint color) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setColor(color); | 
 |     } | 
 |  | 
 |     static void setAlpha(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint a) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setAlpha(a); | 
 |     } | 
 |  | 
 |     static jfloat getStrokeWidth(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeWidth()); | 
 |     } | 
 |  | 
 |     static void setStrokeWidth(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat width) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setStrokeWidth(width); | 
 |     } | 
 |  | 
 |     static jfloat getStrokeMiter(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeMiter()); | 
 |     } | 
 |  | 
 |     static void setStrokeMiter(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat miter) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->setStrokeMiter(miter); | 
 |     } | 
 |  | 
 |     static jint getStrokeCap(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         return static_cast<jint>(obj->getStrokeCap()); | 
 |     } | 
 |  | 
 |     static void setStrokeCap(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint capHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         Paint::Cap cap = static_cast<Paint::Cap>(capHandle); | 
 |         obj->setStrokeCap(cap); | 
 |     } | 
 |  | 
 |     static jint getStrokeJoin(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         return static_cast<jint>(obj->getStrokeJoin()); | 
 |     } | 
 |  | 
 |     static void setStrokeJoin(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint joinHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         Paint::Join join = (Paint::Join) joinHandle; | 
 |         obj->setStrokeJoin(join); | 
 |     } | 
 |  | 
 |     static jboolean getFillPath(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong srcHandle, jlong dstHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         SkPath* src = reinterpret_cast<SkPath*>(srcHandle); | 
 |         SkPath* dst = reinterpret_cast<SkPath*>(dstHandle); | 
 |         return skpathutils::FillPathWithPaint(*src, *obj, dst) ? JNI_TRUE : JNI_FALSE; | 
 |     } | 
 |  | 
 |     static jlong setShader(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong shaderHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle); | 
 |         obj->setShader(sk_ref_sp(shader)); | 
 |         return reinterpret_cast<jlong>(obj->getShader()); | 
 |     } | 
 |  | 
 |     static jlong setColorFilter(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong filterHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint *>(objHandle); | 
 |         SkColorFilter* filter  = reinterpret_cast<SkColorFilter *>(filterHandle); | 
 |         obj->setColorFilter(sk_ref_sp(filter)); | 
 |         return reinterpret_cast<jlong>(obj->getColorFilter()); | 
 |     } | 
 |  | 
 |     static void setXfermode(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint xfermodeHandle) { | 
 |         // validate that the Java enum values match our expectations | 
 |         static_assert(0 == static_cast<int>(SkBlendMode::kClear), "xfermode_mismatch"); | 
 |         static_assert(1 == static_cast<int>(SkBlendMode::kSrc), "xfermode_mismatch"); | 
 |         static_assert(2 == static_cast<int>(SkBlendMode::kDst), "xfermode_mismatch"); | 
 |         static_assert(3 == static_cast<int>(SkBlendMode::kSrcOver), "xfermode_mismatch"); | 
 |         static_assert(4 == static_cast<int>(SkBlendMode::kDstOver), "xfermode_mismatch"); | 
 |         static_assert(5 == static_cast<int>(SkBlendMode::kSrcIn), "xfermode_mismatch"); | 
 |         static_assert(6 == static_cast<int>(SkBlendMode::kDstIn), "xfermode_mismatch"); | 
 |         static_assert(7 == static_cast<int>(SkBlendMode::kSrcOut), "xfermode_mismatch"); | 
 |         static_assert(8 == static_cast<int>(SkBlendMode::kDstOut), "xfermode_mismatch"); | 
 |         static_assert(9 == static_cast<int>(SkBlendMode::kSrcATop), "xfermode_mismatch"); | 
 |         static_assert(10 == static_cast<int>(SkBlendMode::kDstATop), "xfermode_mismatch"); | 
 |         static_assert(11 == static_cast<int>(SkBlendMode::kXor), "xfermode_mismatch"); | 
 |         static_assert(12 == static_cast<int>(SkBlendMode::kPlus), "xfermode_mismatch"); | 
 |         static_assert(13 == static_cast<int>(SkBlendMode::kModulate), "xfermode_mismatch"); | 
 |         static_assert(14 == static_cast<int>(SkBlendMode::kScreen), "xfermode_mismatch"); | 
 |         static_assert(15 == static_cast<int>(SkBlendMode::kOverlay), "xfermode_mismatch"); | 
 |         static_assert(16 == static_cast<int>(SkBlendMode::kDarken), "xfermode_mismatch"); | 
 |         static_assert(17 == static_cast<int>(SkBlendMode::kLighten), "xfermode_mismatch"); | 
 |         static_assert(18 == static_cast<int>(SkBlendMode::kColorDodge), "xfermode mismatch"); | 
 |         static_assert(19 == static_cast<int>(SkBlendMode::kColorBurn), "xfermode mismatch"); | 
 |         static_assert(20 == static_cast<int>(SkBlendMode::kHardLight), "xfermode mismatch"); | 
 |         static_assert(21 == static_cast<int>(SkBlendMode::kSoftLight), "xfermode mismatch"); | 
 |         static_assert(22 == static_cast<int>(SkBlendMode::kDifference), "xfermode mismatch"); | 
 |         static_assert(23 == static_cast<int>(SkBlendMode::kExclusion), "xfermode mismatch"); | 
 |         static_assert(24 == static_cast<int>(SkBlendMode::kMultiply), "xfermode mismatch"); | 
 |         static_assert(25 == static_cast<int>(SkBlendMode::kHue), "xfermode mismatch"); | 
 |         static_assert(26 == static_cast<int>(SkBlendMode::kSaturation), "xfermode mismatch"); | 
 |         static_assert(27 == static_cast<int>(SkBlendMode::kColor), "xfermode mismatch"); | 
 |         static_assert(28 == static_cast<int>(SkBlendMode::kLuminosity), "xfermode mismatch"); | 
 |  | 
 |         SkBlendMode mode = static_cast<SkBlendMode>(xfermodeHandle); | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         paint->setBlendMode(mode); | 
 |     } | 
 |  | 
 |     static jlong setPathEffect(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong effectHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         SkPathEffect* effect  = reinterpret_cast<SkPathEffect*>(effectHandle); | 
 |         obj->setPathEffect(sk_ref_sp(effect)); | 
 |         return reinterpret_cast<jlong>(obj->getPathEffect()); | 
 |     } | 
 |  | 
 |     static jlong setMaskFilter(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong maskfilterHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         SkMaskFilter* maskfilter  = reinterpret_cast<SkMaskFilter*>(maskfilterHandle); | 
 |         obj->setMaskFilter(sk_ref_sp(maskfilter)); | 
 |         return reinterpret_cast<jlong>(obj->getMaskFilter()); | 
 |     } | 
 |  | 
 |     static void setTypeface(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong typefaceHandle) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(objHandle); | 
 |         paint->setAndroidTypeface(reinterpret_cast<Typeface*>(typefaceHandle)); | 
 |     } | 
 |  | 
 |     static jint getTextAlign(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         return static_cast<jint>(obj->getTextAlign()); | 
 |     } | 
 |  | 
 |     static void setTextAlign(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint alignHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         Paint::Align align = static_cast<Paint::Align>(alignHandle); | 
 |         obj->setTextAlign(align); | 
 |     } | 
 |  | 
 |     static void setTextLocalesByMinikinLocaleListId(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, | 
 |             jint minikinLocaleListId) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(objHandle); | 
 |         obj->setMinikinLocaleListId(minikinLocaleListId); | 
 |     } | 
 |  | 
 |     static jboolean isElegantTextHeight(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(paintHandle); | 
 |         return obj->getFamilyVariant() == minikin::FamilyVariant::ELEGANT; | 
 |     } | 
 |  | 
 |     static void setElegantTextHeight(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean aa) { | 
 |         Paint* obj = reinterpret_cast<Paint*>(paintHandle); | 
 |         obj->setFamilyVariant( | 
 |                 aa ? minikin::FamilyVariant::ELEGANT : minikin::FamilyVariant::DEFAULT); | 
 |     } | 
 |  | 
 |     static jfloat getTextSize(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize()); | 
 |     } | 
 |  | 
 |     static void setTextSize(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat textSize) { | 
 |         if (textSize >= 0) { | 
 |             reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSize(textSize); | 
 |         } | 
 |     } | 
 |  | 
 |     static jfloat getTextScaleX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getScaleX()); | 
 |     } | 
 |  | 
 |     static void setTextScaleX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat scaleX) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->getSkFont().setScaleX(scaleX); | 
 |     } | 
 |  | 
 |     static jfloat getTextSkewX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSkewX()); | 
 |     } | 
 |  | 
 |     static void setTextSkewX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat skewX) { | 
 |         reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSkewX(skewX); | 
 |     } | 
 |  | 
 |     static jfloat getLetterSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         return paint->getLetterSpacing(); | 
 |     } | 
 |  | 
 |     static void setLetterSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat letterSpacing) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         paint->setLetterSpacing(letterSpacing); | 
 |     } | 
 |  | 
 |     static jfloat getWordSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         return paint->getWordSpacing(); | 
 |     } | 
 |  | 
 |     static void setWordSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat wordSpacing) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         paint->setWordSpacing(wordSpacing); | 
 |     } | 
 |  | 
 |     static jint getStartHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         return static_cast<jint>(paint->getStartHyphenEdit()); | 
 |     } | 
 |  | 
 |     static jint getEndHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         return static_cast<jint>(paint->getEndHyphenEdit()); | 
 |     } | 
 |  | 
 |     static void setStartHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         paint->setStartHyphenEdit((uint32_t)hyphen); | 
 |     } | 
 |  | 
 |     static void setEndHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         paint->setEndHyphenEdit((uint32_t)hyphen); | 
 |     } | 
 |  | 
 |     static jfloat ascent(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         SkFontMetrics metrics; | 
 |         getMetricsInternal(paintHandle, &metrics); | 
 |         return SkScalarToFloat(metrics.fAscent); | 
 |     } | 
 |  | 
 |     static jfloat descent(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         SkFontMetrics metrics; | 
 |         getMetricsInternal(paintHandle, &metrics); | 
 |         return SkScalarToFloat(metrics.fDescent); | 
 |     } | 
 |  | 
 |     static jfloat getUnderlinePosition(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         SkFontMetrics metrics; | 
 |         getMetricsInternal(paintHandle, &metrics); | 
 |         SkScalar position; | 
 |         if (metrics.hasUnderlinePosition(&position)) { | 
 |             return SkScalarToFloat(position); | 
 |         } else { | 
 |             const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize(); | 
 |             return SkScalarToFloat(Paint::kStdUnderline_Top * textSize); | 
 |         } | 
 |     } | 
 |  | 
 |     static jfloat getUnderlineThickness(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         SkFontMetrics metrics; | 
 |         getMetricsInternal(paintHandle, &metrics); | 
 |         SkScalar thickness; | 
 |         if (metrics.hasUnderlineThickness(&thickness)) { | 
 |             return SkScalarToFloat(thickness); | 
 |         } else { | 
 |             const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize(); | 
 |             return SkScalarToFloat(Paint::kStdUnderline_Thickness * textSize); | 
 |         } | 
 |     } | 
 |  | 
 |     static jfloat getStrikeThruPosition(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize(); | 
 |         return SkScalarToFloat(Paint::kStdStrikeThru_Top * textSize); | 
 |     } | 
 |  | 
 |     static jfloat getStrikeThruThickness(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize(); | 
 |         return SkScalarToFloat(Paint::kStdStrikeThru_Thickness * textSize); | 
 |     } | 
 |  | 
 |     static void setShadowLayer(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat radius, | 
 |                                jfloat dx, jfloat dy, jlong colorSpaceHandle, | 
 |                                jlong colorLong) { | 
 |         SkColor4f color = GraphicsJNI::convertColorLong(colorLong); | 
 |         sk_sp<SkColorSpace> cs = GraphicsJNI::getNativeColorSpace(colorSpaceHandle); | 
 |  | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         if (radius <= 0) { | 
 |             paint->setLooper(nullptr); | 
 |         } | 
 |         else { | 
 |             SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius); | 
 |             paint->setLooper(BlurDrawLooper::Make(color, cs.get(), sigma, {dx, dy})); | 
 |         } | 
 |     } | 
 |  | 
 |     static jboolean hasShadowLayer(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) { | 
 |         Paint* paint = reinterpret_cast<Paint*>(paintHandle); | 
 |         return paint->getLooper() != nullptr; | 
 |     } | 
 |  | 
 |     static jboolean equalsForTextMeasurement(CRITICAL_JNI_PARAMS_COMMA jlong lPaint, jlong rPaint) { | 
 |         if (lPaint == rPaint) { | 
 |             return true; | 
 |         } | 
 |         Paint* leftPaint = reinterpret_cast<Paint*>(lPaint); | 
 |         Paint* rightPaint = reinterpret_cast<Paint*>(rPaint); | 
 |  | 
 |         const Typeface* leftTypeface = Typeface::resolveDefault(leftPaint->getAndroidTypeface()); | 
 |         const Typeface* rightTypeface = Typeface::resolveDefault(rightPaint->getAndroidTypeface()); | 
 |         minikin::MinikinPaint leftMinikinPaint | 
 |                 = MinikinUtils::prepareMinikinPaint(leftPaint, leftTypeface); | 
 |         minikin::MinikinPaint rightMinikinPaint | 
 |                 = MinikinUtils::prepareMinikinPaint(rightPaint, rightTypeface); | 
 |  | 
 |         return leftMinikinPaint == rightMinikinPaint; | 
 |     } | 
 |  | 
 | }; // namespace PaintGlue | 
 |  | 
 | static const JNINativeMethod methods[] = { | 
 |         {"nGetNativeFinalizer", "()J", (void*)PaintGlue::getNativeFinalizer}, | 
 |         {"nInit", "()J", (void*)PaintGlue::init}, | 
 |         {"nInitWithPaint", "(J)J", (void*)PaintGlue::initWithPaint}, | 
 |         {"nBreakText", "(J[CIIFI[F)I", (void*)PaintGlue::breakTextC}, | 
 |         {"nBreakText", "(JLjava/lang/String;ZFI[F)I", (void*)PaintGlue::breakTextS}, | 
 |         {"nGetTextAdvances", "(J[CIIIII[FI)F", (void*)PaintGlue::getTextAdvances___CIIIII_FI}, | 
 |         {"nGetTextAdvances", "(JLjava/lang/String;IIIII[FI)F", | 
 |          (void*)PaintGlue::getTextAdvances__StringIIIII_FI}, | 
 |  | 
 |         {"nGetTextRunCursor", "(J[CIIIII)I", (void*)PaintGlue::getTextRunCursor___C}, | 
 |         {"nGetTextRunCursor", "(JLjava/lang/String;IIIII)I", | 
 |          (void*)PaintGlue::getTextRunCursor__String}, | 
 |         {"nGetTextPath", "(JI[CIIFFJ)V", (void*)PaintGlue::getTextPath___C}, | 
 |         {"nGetTextPath", "(JILjava/lang/String;IIFFJ)V", (void*)PaintGlue::getTextPath__String}, | 
 |         {"nGetStringBounds", "(JLjava/lang/String;IIILandroid/graphics/Rect;)V", | 
 |          (void*)PaintGlue::getStringBounds}, | 
 |         {"nGetCharArrayBounds", "(J[CIIILandroid/graphics/Rect;)V", | 
 |          (void*)PaintGlue::getCharArrayBounds}, | 
 |         {"nHasGlyph", "(JILjava/lang/String;)Z", (void*)PaintGlue::hasGlyph}, | 
 |         {"nGetRunAdvance", "(J[CIIIIZI)F", (void*)PaintGlue::getRunAdvance___CIIIIZI_F}, | 
 |         {"nGetRunCharacterAdvance", "(J[CIIIIZI[FI)F", | 
 |          (void*)PaintGlue::getRunCharacterAdvance___CIIIIZI_FI_F}, | 
 |         {"nGetOffsetForAdvance", "(J[CIIIIZF)I", (void*)PaintGlue::getOffsetForAdvance___CIIIIZF_I}, | 
 |         {"nGetFontMetricsIntForText", "(J[CIIIIZLandroid/graphics/Paint$FontMetricsInt;)V", | 
 |          (void*)PaintGlue::getFontMetricsIntForText___C}, | 
 |         {"nGetFontMetricsIntForText", | 
 |          "(JLjava/lang/String;IIIIZLandroid/graphics/Paint$FontMetricsInt;)V", | 
 |          (void*)PaintGlue::getFontMetricsIntForText___String}, | 
 |  | 
 |         // --------------- @FastNative ---------------------- | 
 |  | 
 |         {"nSetTextLocales", "(JLjava/lang/String;)I", (void*)PaintGlue::setTextLocales}, | 
 |         {"nSetFontFeatureSettings", "(JLjava/lang/String;)V", | 
 |          (void*)PaintGlue::setFontFeatureSettings}, | 
 |         {"nGetFontMetrics", "(JLandroid/graphics/Paint$FontMetrics;)F", | 
 |          (void*)PaintGlue::getFontMetrics}, | 
 |         {"nGetFontMetricsInt", "(JLandroid/graphics/Paint$FontMetricsInt;)I", | 
 |          (void*)PaintGlue::getFontMetricsInt}, | 
 |  | 
 |         // --------------- @CriticalNative ------------------ | 
 |  | 
 |         {"nReset", "(J)V", (void*)PaintGlue::reset}, | 
 |         {"nSet", "(JJ)V", (void*)PaintGlue::assign}, | 
 |         {"nGetFlags", "(J)I", (void*)PaintGlue::getFlags}, | 
 |         {"nSetFlags", "(JI)V", (void*)PaintGlue::setFlags}, | 
 |         {"nGetHinting", "(J)I", (void*)PaintGlue::getHinting}, | 
 |         {"nSetHinting", "(JI)V", (void*)PaintGlue::setHinting}, | 
 |         {"nSetAntiAlias", "(JZ)V", (void*)PaintGlue::setAntiAlias}, | 
 |         {"nSetSubpixelText", "(JZ)V", (void*)PaintGlue::setSubpixelText}, | 
 |         {"nSetLinearText", "(JZ)V", (void*)PaintGlue::setLinearText}, | 
 |         {"nSetUnderlineText", "(JZ)V", (void*)PaintGlue::setUnderlineText}, | 
 |         {"nSetStrikeThruText", "(JZ)V", (void*)PaintGlue::setStrikeThruText}, | 
 |         {"nSetFakeBoldText", "(JZ)V", (void*)PaintGlue::setFakeBoldText}, | 
 |         {"nSetFilterBitmap", "(JZ)V", (void*)PaintGlue::setFilterBitmap}, | 
 |         {"nSetDither", "(JZ)V", (void*)PaintGlue::setDither}, | 
 |         {"nGetStyle", "(J)I", (void*)PaintGlue::getStyle}, | 
 |         {"nSetStyle", "(JI)V", (void*)PaintGlue::setStyle}, | 
 |         {"nSetColor", "(JI)V", (void*)PaintGlue::setColor}, | 
 |         {"nSetColor", "(JJJ)V", (void*)PaintGlue::setColorLong}, | 
 |         {"nSetAlpha", "(JI)V", (void*)PaintGlue::setAlpha}, | 
 |         {"nGetStrokeWidth", "(J)F", (void*)PaintGlue::getStrokeWidth}, | 
 |         {"nSetStrokeWidth", "(JF)V", (void*)PaintGlue::setStrokeWidth}, | 
 |         {"nGetStrokeMiter", "(J)F", (void*)PaintGlue::getStrokeMiter}, | 
 |         {"nSetStrokeMiter", "(JF)V", (void*)PaintGlue::setStrokeMiter}, | 
 |         {"nGetStrokeCap", "(J)I", (void*)PaintGlue::getStrokeCap}, | 
 |         {"nSetStrokeCap", "(JI)V", (void*)PaintGlue::setStrokeCap}, | 
 |         {"nGetStrokeJoin", "(J)I", (void*)PaintGlue::getStrokeJoin}, | 
 |         {"nSetStrokeJoin", "(JI)V", (void*)PaintGlue::setStrokeJoin}, | 
 |         {"nGetFillPath", "(JJJ)Z", (void*)PaintGlue::getFillPath}, | 
 |         {"nSetShader", "(JJ)J", (void*)PaintGlue::setShader}, | 
 |         {"nSetColorFilter", "(JJ)J", (void*)PaintGlue::setColorFilter}, | 
 |         {"nSetXfermode", "(JI)V", (void*)PaintGlue::setXfermode}, | 
 |         {"nSetPathEffect", "(JJ)J", (void*)PaintGlue::setPathEffect}, | 
 |         {"nSetMaskFilter", "(JJ)J", (void*)PaintGlue::setMaskFilter}, | 
 |         {"nSetTypeface", "(JJ)V", (void*)PaintGlue::setTypeface}, | 
 |         {"nGetTextAlign", "(J)I", (void*)PaintGlue::getTextAlign}, | 
 |         {"nSetTextAlign", "(JI)V", (void*)PaintGlue::setTextAlign}, | 
 |         {"nSetTextLocalesByMinikinLocaleListId", "(JI)V", | 
 |          (void*)PaintGlue::setTextLocalesByMinikinLocaleListId}, | 
 |         {"nIsElegantTextHeight", "(J)Z", (void*)PaintGlue::isElegantTextHeight}, | 
 |         {"nSetElegantTextHeight", "(JZ)V", (void*)PaintGlue::setElegantTextHeight}, | 
 |         {"nGetTextSize", "(J)F", (void*)PaintGlue::getTextSize}, | 
 |         {"nSetTextSize", "(JF)V", (void*)PaintGlue::setTextSize}, | 
 |         {"nGetTextScaleX", "(J)F", (void*)PaintGlue::getTextScaleX}, | 
 |         {"nSetTextScaleX", "(JF)V", (void*)PaintGlue::setTextScaleX}, | 
 |         {"nGetTextSkewX", "(J)F", (void*)PaintGlue::getTextSkewX}, | 
 |         {"nSetTextSkewX", "(JF)V", (void*)PaintGlue::setTextSkewX}, | 
 |         {"nGetLetterSpacing", "(J)F", (void*)PaintGlue::getLetterSpacing}, | 
 |         {"nSetLetterSpacing", "(JF)V", (void*)PaintGlue::setLetterSpacing}, | 
 |         {"nGetWordSpacing", "(J)F", (void*)PaintGlue::getWordSpacing}, | 
 |         {"nSetWordSpacing", "(JF)V", (void*)PaintGlue::setWordSpacing}, | 
 |         {"nGetStartHyphenEdit", "(J)I", (void*)PaintGlue::getStartHyphenEdit}, | 
 |         {"nGetEndHyphenEdit", "(J)I", (void*)PaintGlue::getEndHyphenEdit}, | 
 |         {"nSetStartHyphenEdit", "(JI)V", (void*)PaintGlue::setStartHyphenEdit}, | 
 |         {"nSetEndHyphenEdit", "(JI)V", (void*)PaintGlue::setEndHyphenEdit}, | 
 |         {"nAscent", "(J)F", (void*)PaintGlue::ascent}, | 
 |         {"nDescent", "(J)F", (void*)PaintGlue::descent}, | 
 |         {"nGetUnderlinePosition", "(J)F", (void*)PaintGlue::getUnderlinePosition}, | 
 |         {"nGetUnderlineThickness", "(J)F", (void*)PaintGlue::getUnderlineThickness}, | 
 |         {"nGetStrikeThruPosition", "(J)F", (void*)PaintGlue::getStrikeThruPosition}, | 
 |         {"nGetStrikeThruThickness", "(J)F", (void*)PaintGlue::getStrikeThruThickness}, | 
 |         {"nSetShadowLayer", "(JFFFJJ)V", (void*)PaintGlue::setShadowLayer}, | 
 |         {"nHasShadowLayer", "(J)Z", (void*)PaintGlue::hasShadowLayer}, | 
 |         {"nEqualsForTextMeasurement", "(JJ)Z", (void*)PaintGlue::equalsForTextMeasurement}, | 
 | }; | 
 |  | 
 | int register_android_graphics_Paint(JNIEnv* env) { | 
 |     return RegisterMethodsOrDie(env, "android/graphics/Paint", methods, NELEM(methods)); | 
 | } | 
 |  | 
 | } |