Paint.cpp revision c7064146f959caec058980ced144942c8044a169 
1/* libs/android_runtime/android/graphics/Paint.cpp
2**
3** Copyright 2006, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#define LOG_TAG "Paint"
19
20#include <utils/Log.h>
21
22#include "jni.h"
23#include "GraphicsJNI.h"
24#include "core_jni_helpers.h"
25#include <ScopedStringChars.h>
26#include <ScopedUtfChars.h>
27
28#include "SkBlurDrawLooper.h"
29#include "SkColorFilter.h"
30#include "SkMaskFilter.h"
31#include "SkPath.h"
32#include "SkPathEffect.h"
33#include "SkShader.h"
34#include "SkBlendMode.h"
35#include "unicode/uloc.h"
36#include "unicode/ushape.h"
37#include "utils/Blur.h"
38
39#include <hwui/MinikinSkia.h>
40#include <hwui/MinikinUtils.h>
41#include <hwui/Paint.h>
42#include <hwui/Typeface.h>
43#include <minikin/GraphemeBreak.h>
44#include <minikin/Measurement.h>
45#include <unicode/utf16.h>
46
47#include <cassert>
48#include <cstring>
49#include <memory>
50#include <vector>
51
52namespace android {
53
54struct JMetricsID {
55    jfieldID    top;
56    jfieldID    ascent;
57    jfieldID    descent;
58    jfieldID    bottom;
59    jfieldID    leading;
60};
61
62static jclass   gFontMetrics_class;
63static JMetricsID gFontMetrics_fieldID;
64
65static jclass   gFontMetricsInt_class;
66static JMetricsID gFontMetricsInt_fieldID;
67
68static void defaultSettingsForAndroid(Paint* paint) {
69    // GlyphID encoding is required because we are using Harfbuzz shaping
70    paint->setTextEncoding(Paint::kGlyphID_TextEncoding);
71}
72
73namespace PaintGlue {
74    enum MoveOpt {
75        AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT
76    };
77
78    static void deletePaint(Paint* paint) {
79        delete paint;
80    }
81
82    static jlong getNativeFinalizer(JNIEnv*, jobject) {
83        return static_cast<jlong>(reinterpret_cast<uintptr_t>(&deletePaint));
84    }
85
86    static jlong init(JNIEnv* env, jobject) {
87        static_assert(1 <<  0 == SkPaint::kAntiAlias_Flag,             "paint_flags_mismatch");
88        static_assert(1 <<  2 == SkPaint::kDither_Flag,                "paint_flags_mismatch");
89        static_assert(1 <<  3 == SkPaint::kUnderlineText_ReserveFlag,  "paint_flags_mismatch");
90        static_assert(1 <<  4 == SkPaint::kStrikeThruText_ReserveFlag, "paint_flags_mismatch");
91        static_assert(1 <<  5 == SkPaint::kFakeBoldText_Flag,          "paint_flags_mismatch");
92        static_assert(1 <<  6 == SkPaint::kLinearText_Flag,            "paint_flags_mismatch");
93        static_assert(1 <<  7 == SkPaint::kSubpixelText_Flag,          "paint_flags_mismatch");
94        static_assert(1 <<  8 == SkPaint::kDevKernText_Flag,           "paint_flags_mismatch");
95        static_assert(1 << 10 == SkPaint::kEmbeddedBitmapText_Flag,    "paint_flags_mismatch");
96
97        Paint* obj = new Paint();
98        defaultSettingsForAndroid(obj);
99        return reinterpret_cast<jlong>(obj);
100    }
101
102    static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) {
103        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
104        Paint* obj = new Paint(*paint);
105        return reinterpret_cast<jlong>(obj);
106    }
107
108    static int breakText(JNIEnv* env, const Paint& paint, Typeface* typeface, const jchar text[],
109            int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured,
110            const bool forwardScan) {
111        size_t measuredCount = 0;
112        float measured = 0;
113
114        std::unique_ptr<float[]> advancesArray(new float[count]);
115        MinikinUtils::measureText(&paint, bidiFlags, typeface, text, 0, count, count,
116                advancesArray.get());
117
118        for (int i = 0; i < count; i++) {
119            // traverse in the given direction
120            int index = forwardScan ? i : (count - i - 1);
121            float width = advancesArray[index];
122            if (measured + width > maxWidth) {
123                break;
124            }
125            // properly handle clusters when scanning backwards
126            if (forwardScan || width != 0.0f) {
127                measuredCount = i + 1;
128            }
129            measured += width;
130        }
131
132        if (jmeasured && env->GetArrayLength(jmeasured) > 0) {
133            AutoJavaFloatArray autoMeasured(env, jmeasured, 1);
134            jfloat* array = autoMeasured.ptr();
135            array[0] = measured;
136        }
137        return measuredCount;
138    }
139
140    static jint breakTextC(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle,
141            jcharArray jtext, jint index, jint count, jfloat maxWidth, jint bidiFlags,
142            jfloatArray jmeasuredWidth) {
143        NPE_CHECK_RETURN_ZERO(env, jtext);
144
145        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
146        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
147
148        bool forwardTextDirection;
149        if (count < 0) {
150            forwardTextDirection = false;
151            count = -count;
152        }
153        else {
154            forwardTextDirection = true;
155        }
156
157        if ((index < 0) || (index + count > env->GetArrayLength(jtext))) {
158            doThrowAIOOBE(env);
159            return 0;
160        }
161
162        const jchar* text = env->GetCharArrayElements(jtext, nullptr);
163        count = breakText(env, *paint, typeface, text + index, count, maxWidth,
164                          bidiFlags, jmeasuredWidth, forwardTextDirection);
165        env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text),
166                                      JNI_ABORT);
167        return count;
168    }
169
170    static jint breakTextS(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jstring jtext,
171                jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) {
172        NPE_CHECK_RETURN_ZERO(env, jtext);
173
174        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
175        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
176
177        int count = env->GetStringLength(jtext);
178        const jchar* text = env->GetStringChars(jtext, nullptr);
179        count = breakText(env, *paint, typeface, text, count, maxWidth, bidiFlags, jmeasuredWidth, forwards);
180        env->ReleaseStringChars(jtext, text);
181        return count;
182    }
183
184    static jfloat doTextAdvances(JNIEnv *env, Paint *paint, Typeface* typeface,
185            const jchar *text, jint start, jint count, jint contextCount, jint bidiFlags,
186            jfloatArray advances, jint advancesIndex) {
187        NPE_CHECK_RETURN_ZERO(env, text);
188
189        if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) {
190            doThrowAIOOBE(env);
191            return 0;
192        }
193        if (count == 0) {
194            return 0;
195        }
196        if (advances) {
197            size_t advancesLength = env->GetArrayLength(advances);
198            if ((size_t)(count  + advancesIndex) > advancesLength) {
199                doThrowAIOOBE(env);
200                return 0;
201            }
202        }
203        std::unique_ptr<jfloat[]> advancesArray;
204        if (advances) {
205            advancesArray.reset(new jfloat[count]);
206        }
207        const float advance = MinikinUtils::measureText(paint, bidiFlags, typeface, text,
208                start, count, contextCount, advancesArray.get());
209        if (advances) {
210            env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray.get());
211        }
212        return advance;
213    }
214
215    static jfloat getTextAdvances___CIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle,
216            jlong typefaceHandle,
217            jcharArray text, jint index, jint count, jint contextIndex, jint contextCount,
218            jint bidiFlags, jfloatArray advances, jint advancesIndex) {
219        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
220        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
221        jchar* textArray = env->GetCharArrayElements(text, nullptr);
222        jfloat result = doTextAdvances(env, paint, typeface, textArray + contextIndex,
223                index - contextIndex, count, contextCount, bidiFlags, advances, advancesIndex);
224        env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
225        return result;
226    }
227
228    static jfloat getTextAdvances__StringIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle,
229            jlong typefaceHandle,
230            jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint bidiFlags,
231            jfloatArray advances, jint advancesIndex) {
232        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
233        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
234        const jchar* textArray = env->GetStringChars(text, nullptr);
235        jfloat result = doTextAdvances(env, paint, typeface, textArray + contextStart,
236                start - contextStart, end - start, contextEnd - contextStart, bidiFlags,
237                advances, advancesIndex);
238        env->ReleaseStringChars(text, textArray);
239        return result;
240    }
241
242    static jint doTextRunCursor(JNIEnv *env, Paint* paint, const jchar *text, jint start,
243            jint count, jint flags, jint offset, jint opt) {
244        minikin::GraphemeBreak::MoveOpt moveOpt = minikin::GraphemeBreak::MoveOpt(opt);
245        size_t result = minikin::GraphemeBreak::getTextRunCursor(text, start, count, offset,
246                moveOpt);
247        return static_cast<jint>(result);
248    }
249
250    static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text,
251            jint contextStart, jint contextCount, jint dir, jint offset, jint cursorOpt) {
252        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
253        jchar* textArray = env->GetCharArrayElements(text, nullptr);
254        jint result = doTextRunCursor(env, paint, textArray, contextStart, contextCount, dir,
255                offset, cursorOpt);
256        env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
257        return result;
258    }
259
260    static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle, jstring text,
261            jint contextStart, jint contextEnd, jint dir, jint offset, jint cursorOpt) {
262        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
263        const jchar* textArray = env->GetStringChars(text, nullptr);
264        jint result = doTextRunCursor(env, paint, textArray, contextStart,
265                contextEnd - contextStart, dir, offset, cursorOpt);
266        env->ReleaseStringChars(text, textArray);
267        return result;
268    }
269
270    class GetTextFunctor {
271    public:
272        GetTextFunctor(const minikin::Layout& layout, SkPath* path, jfloat x, jfloat y,
273                    Paint* paint, uint16_t* glyphs, SkPoint* pos)
274                : layout(layout), path(path), x(x), y(y), paint(paint), glyphs(glyphs), pos(pos) {
275        }
276
277        void operator()(size_t start, size_t end) {
278            for (size_t i = start; i < end; i++) {
279                glyphs[i] = layout.getGlyphId(i);
280                pos[i].fX = x + layout.getX(i);
281                pos[i].fY = y + layout.getY(i);
282            }
283            if (start == 0) {
284                paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, path);
285            } else {
286                paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, &tmpPath);
287                path->addPath(tmpPath);
288            }
289        }
290    private:
291        const minikin::Layout& layout;
292        SkPath* path;
293        jfloat x;
294        jfloat y;
295        Paint* paint;
296        uint16_t* glyphs;
297        SkPoint* pos;
298        SkPath tmpPath;
299    };
300
301    static void getTextPath(JNIEnv* env, Paint* paint, Typeface* typeface, const jchar* text,
302            jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) {
303        minikin::Layout layout = MinikinUtils::doLayout(
304                paint, bidiFlags, typeface, text, 0, count, count);
305        size_t nGlyphs = layout.nGlyphs();
306        uint16_t* glyphs = new uint16_t[nGlyphs];
307        SkPoint* pos = new SkPoint[nGlyphs];
308
309        x += MinikinUtils::xOffsetForTextAlign(paint, layout);
310        Paint::Align align = paint->getTextAlign();
311        paint->setTextAlign(Paint::kLeft_Align);
312        paint->setTextEncoding(Paint::kGlyphID_TextEncoding);
313        GetTextFunctor f(layout, path, x, y, paint, glyphs, pos);
314        MinikinUtils::forFontRun(layout, paint, f);
315        paint->setTextAlign(align);
316        delete[] glyphs;
317        delete[] pos;
318    }
319
320    static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle,
321            jlong typefaceHandle, jint bidiFlags,
322            jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) {
323        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
324        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
325        SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
326        const jchar* textArray = env->GetCharArrayElements(text, nullptr);
327        getTextPath(env, paint, typeface, textArray + index, count, bidiFlags, x, y, path);
328        env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT);
329    }
330
331    static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle,
332            jlong typefaceHandle, jint bidiFlags,
333            jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) {
334        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
335        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
336        SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
337        const jchar* textArray = env->GetStringChars(text, nullptr);
338        getTextPath(env, paint, typeface, textArray + start, end - start, bidiFlags, x, y, path);
339        env->ReleaseStringChars(text, textArray);
340    }
341
342    static void doTextBounds(JNIEnv* env, const jchar* text, int count, jobject bounds,
343            const Paint& paint, Typeface* typeface, jint bidiFlags) {
344        SkRect  r;
345        SkIRect ir;
346
347        minikin::Layout layout = MinikinUtils::doLayout(
348                &paint, bidiFlags, typeface, text, 0, count, count);
349        minikin::MinikinRect rect;
350        layout.getBounds(&rect);
351        r.fLeft = rect.mLeft;
352        r.fTop = rect.mTop;
353        r.fRight = rect.mRight;
354        r.fBottom = rect.mBottom;
355        r.roundOut(&ir);
356        GraphicsJNI::irect_to_jrect(ir, env, bounds);
357    }
358
359    static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle,
360                                jstring text, jint start, jint end, jint bidiFlags, jobject bounds) {
361        const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
362        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
363        const jchar* textArray = env->GetStringChars(text, nullptr);
364        doTextBounds(env, textArray + start, end - start, bounds, *paint, typeface, bidiFlags);
365        env->ReleaseStringChars(text, textArray);
366    }
367
368    static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle,
369                        jcharArray text, jint index, jint count, jint bidiFlags, jobject bounds) {
370        const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
371        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
372        const jchar* textArray = env->GetCharArrayElements(text, nullptr);
373        doTextBounds(env, textArray + index, count, bounds, *paint, typeface, bidiFlags);
374        env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray),
375                                      JNI_ABORT);
376    }
377
378    // Returns true if the given string is exact one pair of regional indicators.
379    static bool isFlag(const jchar* str, size_t length) {
380        const jchar RI_LEAD_SURROGATE = 0xD83C;
381        const jchar RI_TRAIL_SURROGATE_MIN = 0xDDE6;
382        const jchar RI_TRAIL_SURROGATE_MAX = 0xDDFF;
383
384        if (length != 4) {
385            return false;
386        }
387        if (str[0] != RI_LEAD_SURROGATE || str[2] != RI_LEAD_SURROGATE) {
388            return false;
389        }
390        return RI_TRAIL_SURROGATE_MIN <= str[1] && str[1] <= RI_TRAIL_SURROGATE_MAX &&
391            RI_TRAIL_SURROGATE_MIN <= str[3] && str[3] <= RI_TRAIL_SURROGATE_MAX;
392    }
393
394    static jboolean layoutContainsNotdef(const minikin::Layout& layout) {
395        for (size_t i = 0; i < layout.nGlyphs(); i++) {
396            if (layout.getGlyphId(i) == 0) {
397                return true;
398            }
399        }
400        return false;
401    }
402
403    // Don't count glyphs that are the recommended "space" glyph and are zero width.
404    // This logic makes assumptions about HarfBuzz layout, but does correctly handle
405    // cases where ligatures form and zero width space glyphs are left in as
406    // placeholders.
407    static size_t countNonSpaceGlyphs(const minikin::Layout& layout) {
408        size_t count = 0;
409        static unsigned int kSpaceGlyphId = 3;
410        for (size_t i = 0; i < layout.nGlyphs(); i++) {
411            if (layout.getGlyphId(i) != kSpaceGlyphId || layout.getCharAdvance(i) != 0.0) {
412                count++;
413            }
414        }
415        return count;
416    }
417
418    static jboolean hasGlyph(JNIEnv *env, jclass, jlong paintHandle, jlong typefaceHandle,
419            jint bidiFlags, jstring string) {
420        const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
421        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
422        ScopedStringChars str(env, string);
423
424        /* Start by rejecting unsupported base code point and variation selector pairs. */
425        size_t nChars = 0;
426        const uint32_t kStartOfString = 0xFFFFFFFF;
427        uint32_t prevCp = kStartOfString;
428        for (size_t i = 0; i < str.size(); i++) {
429            jchar cu = str[i];
430            uint32_t cp = cu;
431            if (U16_IS_TRAIL(cu)) {
432                // invalid UTF-16, unpaired trailing surrogate
433                return false;
434            } else if (U16_IS_LEAD(cu)) {
435                if (i + 1 == str.size()) {
436                    // invalid UTF-16, unpaired leading surrogate at end of string
437                    return false;
438                }
439                i++;
440                jchar cu2 = str[i];
441                if (!U16_IS_TRAIL(cu2)) {
442                    // invalid UTF-16, unpaired leading surrogate
443                    return false;
444                }
445                cp = U16_GET_SUPPLEMENTARY(cu, cu2);
446            }
447
448            if (prevCp != kStartOfString &&
449                ((0xFE00 <= cp && cp <= 0xFE0F) || (0xE0100 <= cp && cp <= 0xE01EF))) {
450                bool hasVS = MinikinUtils::hasVariationSelector(typeface, prevCp, cp);
451                if (!hasVS) {
452                    // No font has a glyph for the code point and variation selector pair.
453                    return false;
454                } else if (nChars == 1 && i + 1 == str.size()) {
455                    // The string is just a codepoint and a VS, we have an authoritative answer
456                    return true;
457                }
458            }
459            nChars++;
460            prevCp = cp;
461        }
462        minikin::Layout layout = MinikinUtils::doLayout(
463                paint, bidiFlags, typeface, str.get(), 0, str.size(), str.size());
464        size_t nGlyphs = countNonSpaceGlyphs(layout);
465        if (nGlyphs != 1 && nChars > 1) {
466            // multiple-character input, and was not a ligature
467            // TODO: handle ZWJ/ZWNJ characters specially so we can detect certain ligatures
468            // in joining scripts, such as Arabic and Mongolian.
469            return false;
470        }
471
472        if (nGlyphs == 0 || layoutContainsNotdef(layout)) {
473            return false;  // The collection doesn't have a glyph.
474        }
475
476        if (nChars == 2 && isFlag(str.get(), str.size())) {
477            // Some font may have a special glyph for unsupported regional indicator pairs.
478            // To return false for this case, need to compare the glyph id with the one of ZZ
479            // since ZZ is reserved for unknown or invalid territory.
480            // U+1F1FF (REGIONAL INDICATOR SYMBOL LETTER Z) is \uD83C\uDDFF in UTF16.
481            static const jchar ZZ_FLAG_STR[] = { 0xD83C, 0xDDFF, 0xD83C, 0xDDFF };
482            minikin::Layout zzLayout = MinikinUtils::doLayout(
483                    paint, bidiFlags, typeface, ZZ_FLAG_STR, 0, 4, 4);
484            if (zzLayout.nGlyphs() != 1 || layoutContainsNotdef(zzLayout)) {
485                // The font collection doesn't have a glyph for unknown flag. Just return true.
486                return true;
487            }
488            return zzLayout.getGlyphId(0) != layout.getGlyphId(0);
489        }
490        return true;
491    }
492
493    static jfloat doRunAdvance(const Paint* paint, Typeface* typeface, const jchar buf[],
494            jint start, jint count, jint bufSize, jboolean isRtl, jint offset) {
495        int bidiFlags = isRtl ? minikin::kBidi_Force_RTL : minikin::kBidi_Force_LTR;
496        if (offset == start + count) {
497            return MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count,
498                    bufSize, nullptr);
499        }
500        std::unique_ptr<float[]> advancesArray(new float[count]);
501        MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, bufSize,
502                advancesArray.get());
503        return minikin::getRunAdvance(advancesArray.get(), buf, start, count, offset);
504    }
505
506    static jfloat getRunAdvance___CIIIIZI_F(JNIEnv *env, jclass, jlong paintHandle,
507            jlong typefaceHandle, jcharArray text, jint start, jint end, jint contextStart,
508            jint contextEnd, jboolean isRtl, jint offset) {
509        const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
510        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
511        jchar* textArray = (jchar*) env->GetPrimitiveArrayCritical(text, nullptr);
512        jfloat result = doRunAdvance(paint, typeface, textArray + contextStart,
513                start - contextStart, end - start, contextEnd - contextStart, isRtl,
514                offset - contextStart);
515        env->ReleasePrimitiveArrayCritical(text, textArray, JNI_ABORT);
516        return result;
517    }
518
519    static jint doOffsetForAdvance(const Paint* paint, Typeface* typeface, const jchar buf[],
520            jint start, jint count, jint bufSize, jboolean isRtl, jfloat advance) {
521        int bidiFlags = isRtl ? minikin::kBidi_Force_RTL : minikin::kBidi_Force_LTR;
522        std::unique_ptr<float[]> advancesArray(new float[count]);
523        MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, bufSize,
524                advancesArray.get());
525        return minikin::getOffsetForAdvance(advancesArray.get(), buf, start, count, advance);
526    }
527
528    static jint getOffsetForAdvance___CIIIIZF_I(JNIEnv *env, jclass, jlong paintHandle,
529            jlong typefaceHandle, jcharArray text, jint start, jint end, jint contextStart,
530            jint contextEnd, jboolean isRtl, jfloat advance) {
531        const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
532        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
533        jchar* textArray = (jchar*) env->GetPrimitiveArrayCritical(text, nullptr);
534        jint result = doOffsetForAdvance(paint, typeface, textArray + contextStart,
535                start - contextStart, end - start, contextEnd - contextStart, isRtl, advance);
536        result += contextStart;
537        env->ReleasePrimitiveArrayCritical(text, textArray, JNI_ABORT);
538        return result;
539    }
540
541    // ------------------ @FastNative ---------------------------
542
543    static jint setTextLocales(JNIEnv* env, jobject clazz, jlong objHandle, jstring locales) {
544        Paint* obj = reinterpret_cast<Paint*>(objHandle);
545        ScopedUtfChars localesChars(env, locales);
546        jint minikinLangListId = minikin::FontStyle::registerLanguageList(localesChars.c_str());
547        obj->setMinikinLangListId(minikinLangListId);
548        return minikinLangListId;
549    }
550
551    static void setFontFeatureSettings(JNIEnv* env, jobject clazz, jlong paintHandle, jstring settings) {
552        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
553        if (!settings) {
554            paint->setFontFeatureSettings(std::string());
555        } else {
556            ScopedUtfChars settingsChars(env, settings);
557            paint->setFontFeatureSettings(std::string(settingsChars.c_str(), settingsChars.size()));
558        }
559    }
560
561    static SkScalar getMetricsInternal(jlong paintHandle, jlong typefaceHandle,
562            Paint::FontMetrics *metrics) {
563        const int kElegantTop = 2500;
564        const int kElegantBottom = -1000;
565        const int kElegantAscent = 1900;
566        const int kElegantDescent = -500;
567        const int kElegantLeading = 0;
568        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
569        Typeface* typeface = reinterpret_cast<Typeface*>(typefaceHandle);
570        typeface = Typeface::resolveDefault(typeface);
571        minikin::FakedFont baseFont = typeface->fFontCollection->baseFontFaked(typeface->fStyle);
572        float saveSkewX = paint->getTextSkewX();
573        bool savefakeBold = paint->isFakeBoldText();
574        MinikinFontSkia::populateSkPaint(paint, baseFont.font, baseFont.fakery);
575        SkScalar spacing = paint->getFontMetrics(metrics);
576        // The populateSkPaint call may have changed fake bold / text skew
577        // because we want to measure with those effects applied, so now
578        // restore the original settings.
579        paint->setTextSkewX(saveSkewX);
580        paint->setFakeBoldText(savefakeBold);
581        if (paint->getFontVariant() == minikin::VARIANT_ELEGANT) {
582            SkScalar size = paint->getTextSize();
583            metrics->fTop = -size * kElegantTop / 2048;
584            metrics->fBottom = -size * kElegantBottom / 2048;
585            metrics->fAscent = -size * kElegantAscent / 2048;
586            metrics->fDescent = -size * kElegantDescent / 2048;
587            metrics->fLeading = size * kElegantLeading / 2048;
588            spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading;
589        }
590        return spacing;
591    }
592
593    static jfloat getFontMetrics(JNIEnv* env, jobject, jlong paintHandle,
594            jlong typefaceHandle, jobject metricsObj) {
595        Paint::FontMetrics metrics;
596        SkScalar spacing = getMetricsInternal(paintHandle, typefaceHandle, &metrics);
597
598        if (metricsObj) {
599            SkASSERT(env->IsInstanceOf(metricsObj, gFontMetrics_class));
600            env->SetFloatField(metricsObj, gFontMetrics_fieldID.top, SkScalarToFloat(metrics.fTop));
601            env->SetFloatField(metricsObj, gFontMetrics_fieldID.ascent, SkScalarToFloat(metrics.fAscent));
602            env->SetFloatField(metricsObj, gFontMetrics_fieldID.descent, SkScalarToFloat(metrics.fDescent));
603            env->SetFloatField(metricsObj, gFontMetrics_fieldID.bottom, SkScalarToFloat(metrics.fBottom));
604            env->SetFloatField(metricsObj, gFontMetrics_fieldID.leading, SkScalarToFloat(metrics.fLeading));
605        }
606        return SkScalarToFloat(spacing);
607    }
608
609    static jint getFontMetricsInt(JNIEnv* env, jobject, jlong paintHandle,
610            jlong typefaceHandle, jobject metricsObj) {
611        Paint::FontMetrics metrics;
612
613        getMetricsInternal(paintHandle, typefaceHandle, &metrics);
614        int ascent = SkScalarRoundToInt(metrics.fAscent);
615        int descent = SkScalarRoundToInt(metrics.fDescent);
616        int leading = SkScalarRoundToInt(metrics.fLeading);
617
618        if (metricsObj) {
619            SkASSERT(env->IsInstanceOf(metricsObj, gFontMetricsInt_class));
620            env->SetIntField(metricsObj, gFontMetricsInt_fieldID.top, SkScalarFloorToInt(metrics.fTop));
621            env->SetIntField(metricsObj, gFontMetricsInt_fieldID.ascent, ascent);
622            env->SetIntField(metricsObj, gFontMetricsInt_fieldID.descent, descent);
623            env->SetIntField(metricsObj, gFontMetricsInt_fieldID.bottom, SkScalarCeilToInt(metrics.fBottom));
624            env->SetIntField(metricsObj, gFontMetricsInt_fieldID.leading, leading);
625        }
626        return descent - ascent + leading;
627    }
628
629
630    // ------------------ @CriticalNative ---------------------------
631
632    static void reset(jlong objHandle) {
633        Paint* obj = reinterpret_cast<Paint*>(objHandle);
634        obj->reset();
635        defaultSettingsForAndroid(obj);
636    }
637
638    static void assign(jlong dstPaintHandle, jlong srcPaintHandle) {
639        Paint* dst = reinterpret_cast<Paint*>(dstPaintHandle);
640        const Paint* src = reinterpret_cast<Paint*>(srcPaintHandle);
641        *dst = *src;
642    }
643
644    // Equivalent to the Java Paint's FILTER_BITMAP_FLAG.
645    static const uint32_t sFilterBitmapFlag = 0x02;
646
647    static jint getFlags(jlong paintHandle) {
648        Paint* nativePaint = reinterpret_cast<Paint*>(paintHandle);
649        uint32_t result = nativePaint->getFlags();
650        result &= ~sFilterBitmapFlag; // Filtering no longer stored in this bit. Mask away.
651        if (nativePaint->getFilterQuality() != kNone_SkFilterQuality) {
652            result |= sFilterBitmapFlag;
653        }
654        return static_cast<jint>(result);
655    }
656
657    static void setFlags(jlong paintHandle, jint flags) {
658        Paint* nativePaint = reinterpret_cast<Paint*>(paintHandle);
659        // Instead of modifying 0x02, change the filter level.
660        nativePaint->setFilterQuality(flags & sFilterBitmapFlag
661                ? kLow_SkFilterQuality
662                : kNone_SkFilterQuality);
663        // Don't pass through filter flag, which is no longer stored in paint's flags.
664        flags &= ~sFilterBitmapFlag;
665        // Use the existing value for 0x02.
666        const uint32_t existing0x02Flag = nativePaint->getFlags() & sFilterBitmapFlag;
667        flags |= existing0x02Flag;
668        nativePaint->setFlags(flags);
669    }
670
671    static jint getHinting(jlong paintHandle) {
672        return reinterpret_cast<Paint*>(paintHandle)->getHinting()
673                == Paint::kNo_Hinting ? 0 : 1;
674    }
675
676    static void setHinting(jlong paintHandle, jint mode) {
677        reinterpret_cast<Paint*>(paintHandle)->setHinting(
678                mode == 0 ? Paint::kNo_Hinting : Paint::kNormal_Hinting);
679    }
680
681    static void setAntiAlias(jlong paintHandle, jboolean aa) {
682        reinterpret_cast<Paint*>(paintHandle)->setAntiAlias(aa);
683    }
684
685    static void setLinearText(jlong paintHandle, jboolean linearText) {
686        reinterpret_cast<Paint*>(paintHandle)->setLinearText(linearText);
687    }
688
689    static void setSubpixelText(jlong paintHandle, jboolean subpixelText) {
690        reinterpret_cast<Paint*>(paintHandle)->setSubpixelText(subpixelText);
691    }
692
693    static void setUnderlineText(jlong paintHandle, jboolean underlineText) {
694        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
695        uint32_t flags = paint->getFlags();
696        if (underlineText) {
697            flags |= Paint::kUnderlineText_ReserveFlag;
698        } else {
699            flags &= ~Paint::kUnderlineText_ReserveFlag;
700        }
701        paint->setFlags(flags);
702    }
703
704    static void setStrikeThruText(jlong paintHandle, jboolean strikeThruText) {
705        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
706        uint32_t flags = paint->getFlags();
707        if (strikeThruText) {
708            flags |= Paint::kStrikeThruText_ReserveFlag;
709        } else {
710            flags &= ~Paint::kStrikeThruText_ReserveFlag;
711        }
712        paint->setFlags(flags);
713    }
714
715    static void setFakeBoldText(jlong paintHandle, jboolean fakeBoldText) {
716        reinterpret_cast<Paint*>(paintHandle)->setFakeBoldText(fakeBoldText);
717    }
718
719    static void setFilterBitmap(jlong paintHandle, jboolean filterBitmap) {
720        reinterpret_cast<Paint*>(paintHandle)->setFilterQuality(
721                filterBitmap ? kLow_SkFilterQuality : kNone_SkFilterQuality);
722    }
723
724    static void setDither(jlong paintHandle, jboolean dither) {
725        reinterpret_cast<Paint*>(paintHandle)->setDither(dither);
726    }
727
728    static jint getStyle(jlong objHandle) {
729        Paint* obj = reinterpret_cast<Paint*>(objHandle);
730        return static_cast<jint>(obj->getStyle());
731    }
732
733    static void setStyle(jlong objHandle, jint styleHandle) {
734        Paint* obj = reinterpret_cast<Paint*>(objHandle);
735        Paint::Style style = static_cast<Paint::Style>(styleHandle);
736        obj->setStyle(style);
737    }
738
739    static jint getColor(jlong paintHandle) {
740        int color;
741        color = reinterpret_cast<Paint*>(paintHandle)->getColor();
742        return static_cast<jint>(color);
743    }
744
745    static jint getAlpha(jlong paintHandle) {
746        int alpha;
747        alpha = reinterpret_cast<Paint*>(paintHandle)->getAlpha();
748        return static_cast<jint>(alpha);
749    }
750
751    static void setColor(jlong paintHandle, jint color) {
752        reinterpret_cast<Paint*>(paintHandle)->setColor(color);
753    }
754
755    static void setAlpha(jlong paintHandle, jint a) {
756        reinterpret_cast<Paint*>(paintHandle)->setAlpha(a);
757    }
758
759    static jfloat getStrokeWidth(jlong paintHandle) {
760        return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeWidth());
761    }
762
763    static void setStrokeWidth(jlong paintHandle, jfloat width) {
764        reinterpret_cast<Paint*>(paintHandle)->setStrokeWidth(width);
765    }
766
767    static jfloat getStrokeMiter(jlong paintHandle) {
768        return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeMiter());
769    }
770
771    static void setStrokeMiter(jlong paintHandle, jfloat miter) {
772        reinterpret_cast<Paint*>(paintHandle)->setStrokeMiter(miter);
773    }
774
775    static jint getStrokeCap(jlong objHandle) {
776        Paint* obj = reinterpret_cast<Paint*>(objHandle);
777        return static_cast<jint>(obj->getStrokeCap());
778    }
779
780    static void setStrokeCap(jlong objHandle, jint capHandle) {
781        Paint* obj = reinterpret_cast<Paint*>(objHandle);
782        Paint::Cap cap = static_cast<Paint::Cap>(capHandle);
783        obj->setStrokeCap(cap);
784    }
785
786    static jint getStrokeJoin(jlong objHandle) {
787        Paint* obj = reinterpret_cast<Paint*>(objHandle);
788        return static_cast<jint>(obj->getStrokeJoin());
789    }
790
791    static void setStrokeJoin(jlong objHandle, jint joinHandle) {
792        Paint* obj = reinterpret_cast<Paint*>(objHandle);
793        Paint::Join join = (Paint::Join) joinHandle;
794        obj->setStrokeJoin(join);
795    }
796
797    static jboolean getFillPath(jlong objHandle, jlong srcHandle, jlong dstHandle) {
798        Paint* obj = reinterpret_cast<Paint*>(objHandle);
799        SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
800        SkPath* dst = reinterpret_cast<SkPath*>(dstHandle);
801        return obj->getFillPath(*src, dst) ? JNI_TRUE : JNI_FALSE;
802    }
803
804    static jlong setShader(jlong objHandle, jlong shaderHandle) {
805        Paint* obj = reinterpret_cast<Paint*>(objHandle);
806        SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle);
807        obj->setShader(sk_ref_sp(shader));
808        return reinterpret_cast<jlong>(obj->getShader());
809    }
810
811    static jlong setColorFilter(jlong objHandle, jlong filterHandle) {
812        Paint* obj = reinterpret_cast<Paint *>(objHandle);
813        SkColorFilter* filter  = reinterpret_cast<SkColorFilter *>(filterHandle);
814        obj->setColorFilter(sk_ref_sp(filter));
815        return reinterpret_cast<jlong>(obj->getColorFilter());
816    }
817
818    static void setXfermode(jlong paintHandle, jint xfermodeHandle) {
819        // validate that the Java enum values match our expectations
820        static_assert(0 == static_cast<int>(SkBlendMode::kClear), "xfermode_mismatch");
821        static_assert(1 == static_cast<int>(SkBlendMode::kSrc), "xfermode_mismatch");
822        static_assert(2 == static_cast<int>(SkBlendMode::kDst), "xfermode_mismatch");
823        static_assert(3 == static_cast<int>(SkBlendMode::kSrcOver), "xfermode_mismatch");
824        static_assert(4 == static_cast<int>(SkBlendMode::kDstOver), "xfermode_mismatch");
825        static_assert(5 == static_cast<int>(SkBlendMode::kSrcIn), "xfermode_mismatch");
826        static_assert(6 == static_cast<int>(SkBlendMode::kDstIn), "xfermode_mismatch");
827        static_assert(7 == static_cast<int>(SkBlendMode::kSrcOut), "xfermode_mismatch");
828        static_assert(8 == static_cast<int>(SkBlendMode::kDstOut), "xfermode_mismatch");
829        static_assert(9 == static_cast<int>(SkBlendMode::kSrcATop), "xfermode_mismatch");
830        static_assert(10 == static_cast<int>(SkBlendMode::kDstATop), "xfermode_mismatch");
831        static_assert(11 == static_cast<int>(SkBlendMode::kXor), "xfermode_mismatch");
832        static_assert(16 == static_cast<int>(SkBlendMode::kDarken), "xfermode_mismatch");
833        static_assert(17 == static_cast<int>(SkBlendMode::kLighten), "xfermode_mismatch");
834        static_assert(13 == static_cast<int>(SkBlendMode::kModulate), "xfermode_mismatch");
835        static_assert(14 == static_cast<int>(SkBlendMode::kScreen), "xfermode_mismatch");
836        static_assert(12 == static_cast<int>(SkBlendMode::kPlus), "xfermode_mismatch");
837        static_assert(15 == static_cast<int>(SkBlendMode::kOverlay), "xfermode_mismatch");
838
839        SkBlendMode mode = static_cast<SkBlendMode>(xfermodeHandle);
840        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
841        paint->setBlendMode(mode);
842    }
843
844    static jlong setPathEffect(jlong objHandle, jlong effectHandle) {
845        Paint* obj = reinterpret_cast<Paint*>(objHandle);
846        SkPathEffect* effect  = reinterpret_cast<SkPathEffect*>(effectHandle);
847        obj->setPathEffect(sk_ref_sp(effect));
848        return reinterpret_cast<jlong>(obj->getPathEffect());
849    }
850
851    static jlong setMaskFilter(jlong objHandle, jlong maskfilterHandle) {
852        Paint* obj = reinterpret_cast<Paint*>(objHandle);
853        SkMaskFilter* maskfilter  = reinterpret_cast<SkMaskFilter*>(maskfilterHandle);
854        obj->setMaskFilter(sk_ref_sp(maskfilter));
855        return reinterpret_cast<jlong>(obj->getMaskFilter());
856    }
857
858    static jlong setTypeface(jlong objHandle, jlong typefaceHandle) {
859        // TODO: in Paint refactoring, set typeface on android Paint, not Paint
860        return 0;
861    }
862
863    static jint getTextAlign(jlong objHandle) {
864        Paint* obj = reinterpret_cast<Paint*>(objHandle);
865        return static_cast<jint>(obj->getTextAlign());
866    }
867
868    static void setTextAlign(jlong objHandle, jint alignHandle) {
869        Paint* obj = reinterpret_cast<Paint*>(objHandle);
870        Paint::Align align = static_cast<Paint::Align>(alignHandle);
871        obj->setTextAlign(align);
872    }
873
874    static void setTextLocalesByMinikinLangListId(jlong objHandle,
875            jint minikinLangListId) {
876        Paint* obj = reinterpret_cast<Paint*>(objHandle);
877        obj->setMinikinLangListId(minikinLangListId);
878    }
879
880    static jboolean isElegantTextHeight(jlong paintHandle) {
881        Paint* obj = reinterpret_cast<Paint*>(paintHandle);
882        return obj->getFontVariant() == minikin::VARIANT_ELEGANT;
883    }
884
885    static void setElegantTextHeight(jlong paintHandle, jboolean aa) {
886        Paint* obj = reinterpret_cast<Paint*>(paintHandle);
887        obj->setFontVariant(aa ? minikin::VARIANT_ELEGANT : minikin::VARIANT_DEFAULT);
888    }
889
890    static jfloat getTextSize(jlong paintHandle) {
891        return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextSize());
892    }
893
894    static void setTextSize(jlong paintHandle, jfloat textSize) {
895        reinterpret_cast<Paint*>(paintHandle)->setTextSize(textSize);
896    }
897
898    static jfloat getTextScaleX(jlong paintHandle) {
899        return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextScaleX());
900    }
901
902    static void setTextScaleX(jlong paintHandle, jfloat scaleX) {
903        reinterpret_cast<Paint*>(paintHandle)->setTextScaleX(scaleX);
904    }
905
906    static jfloat getTextSkewX(jlong paintHandle) {
907        return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextSkewX());
908    }
909
910    static void setTextSkewX(jlong paintHandle, jfloat skewX) {
911        reinterpret_cast<Paint*>(paintHandle)->setTextSkewX(skewX);
912    }
913
914    static jfloat getLetterSpacing(jlong paintHandle) {
915        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
916        return paint->getLetterSpacing();
917    }
918
919    static void setLetterSpacing(jlong paintHandle, jfloat letterSpacing) {
920        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
921        paint->setLetterSpacing(letterSpacing);
922    }
923
924    static jfloat getWordSpacing(jlong paintHandle) {
925        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
926        return paint->getWordSpacing();
927    }
928
929    static void setWordSpacing(jlong paintHandle, jfloat wordSpacing) {
930        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
931        paint->setWordSpacing(wordSpacing);
932    }
933
934    static jint getHyphenEdit(jlong paintHandle, jint hyphen) {
935        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
936        return paint->getHyphenEdit();
937    }
938
939    static void setHyphenEdit(jlong paintHandle, jint hyphen) {
940        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
941        paint->setHyphenEdit((uint32_t)hyphen);
942    }
943
944    static jfloat ascent(jlong paintHandle, jlong typefaceHandle) {
945        Paint::FontMetrics metrics;
946        getMetricsInternal(paintHandle, typefaceHandle, &metrics);
947        return SkScalarToFloat(metrics.fAscent);
948    }
949
950    static jfloat descent(jlong paintHandle, jlong typefaceHandle) {
951        Paint::FontMetrics metrics;
952        getMetricsInternal(paintHandle, typefaceHandle, &metrics);
953        return SkScalarToFloat(metrics.fDescent);
954    }
955
956    static void setShadowLayer(jlong paintHandle, jfloat radius,
957                               jfloat dx, jfloat dy, jint color) {
958        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
959        if (radius <= 0) {
960            paint->setLooper(nullptr);
961        }
962        else {
963            SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius);
964            paint->setLooper(SkBlurDrawLooper::Make((SkColor)color, sigma, dx, dy));
965        }
966    }
967
968    static jboolean hasShadowLayer(jlong paintHandle) {
969        Paint* paint = reinterpret_cast<Paint*>(paintHandle);
970        return paint->getLooper() && paint->getLooper()->asABlurShadow(nullptr);
971    }
972
973}; // namespace PaintGlue
974
975static const JNINativeMethod methods[] = {
976    {"nGetNativeFinalizer", "()J", (void*) PaintGlue::getNativeFinalizer},
977    {"nInit","()J", (void*) PaintGlue::init},
978    {"nInitWithPaint","(J)J", (void*) PaintGlue::initWithPaint},
979    {"nBreakText","(JJ[CIIFI[F)I", (void*) PaintGlue::breakTextC},
980    {"nBreakText","(JJLjava/lang/String;ZFI[F)I", (void*) PaintGlue::breakTextS},
981    {"nGetTextAdvances","(JJ[CIIIII[FI)F",
982            (void*) PaintGlue::getTextAdvances___CIIIII_FI},
983    {"nGetTextAdvances","(JJLjava/lang/String;IIIII[FI)F",
984            (void*) PaintGlue::getTextAdvances__StringIIIII_FI},
985
986    {"nGetTextRunCursor", "(J[CIIIII)I", (void*) PaintGlue::getTextRunCursor___C},
987    {"nGetTextRunCursor", "(JLjava/lang/String;IIIII)I",
988            (void*) PaintGlue::getTextRunCursor__String},
989    {"nGetTextPath", "(JJI[CIIFFJ)V", (void*) PaintGlue::getTextPath___C},
990    {"nGetTextPath", "(JJILjava/lang/String;IIFFJ)V", (void*) PaintGlue::getTextPath__String},
991    {"nGetStringBounds", "(JJLjava/lang/String;IIILandroid/graphics/Rect;)V",
992            (void*) PaintGlue::getStringBounds },
993    {"nGetCharArrayBounds", "(JJ[CIIILandroid/graphics/Rect;)V",
994            (void*) PaintGlue::getCharArrayBounds },
995    {"nHasGlyph", "(JJILjava/lang/String;)Z", (void*) PaintGlue::hasGlyph },
996    {"nGetRunAdvance", "(JJ[CIIIIZI)F", (void*) PaintGlue::getRunAdvance___CIIIIZI_F},
997    {"nGetOffsetForAdvance", "(JJ[CIIIIZF)I",
998            (void*) PaintGlue::getOffsetForAdvance___CIIIIZF_I},
999
1000    // --------------- @FastNative ----------------------
1001
1002    {"nSetTextLocales","(JLjava/lang/String;)I", (void*) PaintGlue::setTextLocales},
1003    {"nSetFontFeatureSettings","(JLjava/lang/String;)V",
1004                (void*) PaintGlue::setFontFeatureSettings},
1005    {"nGetFontMetrics", "(JJLandroid/graphics/Paint$FontMetrics;)F",
1006                (void*)PaintGlue::getFontMetrics},
1007    {"nGetFontMetricsInt", "(JJLandroid/graphics/Paint$FontMetricsInt;)I",
1008            (void*)PaintGlue::getFontMetricsInt},
1009
1010    // --------------- @CriticalNative ------------------
1011
1012    {"nReset","(J)V", (void*) PaintGlue::reset},
1013    {"nSet","(JJ)V", (void*) PaintGlue::assign},
1014    {"nGetFlags","(J)I", (void*) PaintGlue::getFlags},
1015    {"nSetFlags","(JI)V", (void*) PaintGlue::setFlags},
1016    {"nGetHinting","(J)I", (void*) PaintGlue::getHinting},
1017    {"nSetHinting","(JI)V", (void*) PaintGlue::setHinting},
1018    {"nSetAntiAlias","(JZ)V", (void*) PaintGlue::setAntiAlias},
1019    {"nSetSubpixelText","(JZ)V", (void*) PaintGlue::setSubpixelText},
1020    {"nSetLinearText","(JZ)V", (void*) PaintGlue::setLinearText},
1021    {"nSetUnderlineText","(JZ)V", (void*) PaintGlue::setUnderlineText},
1022    {"nSetStrikeThruText","(JZ)V", (void*) PaintGlue::setStrikeThruText},
1023    {"nSetFakeBoldText","(JZ)V", (void*) PaintGlue::setFakeBoldText},
1024    {"nSetFilterBitmap","(JZ)V", (void*) PaintGlue::setFilterBitmap},
1025    {"nSetDither","(JZ)V", (void*) PaintGlue::setDither},
1026    {"nGetStyle","(J)I", (void*) PaintGlue::getStyle},
1027    {"nSetStyle","(JI)V", (void*) PaintGlue::setStyle},
1028    {"nGetColor","(J)I", (void*) PaintGlue::getColor},
1029    {"nSetColor","(JI)V", (void*) PaintGlue::setColor},
1030    {"nGetAlpha","(J)I", (void*) PaintGlue::getAlpha},
1031    {"nSetAlpha","(JI)V", (void*) PaintGlue::setAlpha},
1032    {"nGetStrokeWidth","(J)F", (void*) PaintGlue::getStrokeWidth},
1033    {"nSetStrokeWidth","(JF)V", (void*) PaintGlue::setStrokeWidth},
1034    {"nGetStrokeMiter","(J)F", (void*) PaintGlue::getStrokeMiter},
1035    {"nSetStrokeMiter","(JF)V", (void*) PaintGlue::setStrokeMiter},
1036    {"nGetStrokeCap","(J)I", (void*) PaintGlue::getStrokeCap},
1037    {"nSetStrokeCap","(JI)V", (void*) PaintGlue::setStrokeCap},
1038    {"nGetStrokeJoin","(J)I", (void*) PaintGlue::getStrokeJoin},
1039    {"nSetStrokeJoin","(JI)V", (void*) PaintGlue::setStrokeJoin},
1040    {"nGetFillPath","(JJJ)Z", (void*) PaintGlue::getFillPath},
1041    {"nSetShader","(JJ)J", (void*) PaintGlue::setShader},
1042    {"nSetColorFilter","(JJ)J", (void*) PaintGlue::setColorFilter},
1043    {"nSetXfermode","(JI)V", (void*) PaintGlue::setXfermode},
1044    {"nSetPathEffect","(JJ)J", (void*) PaintGlue::setPathEffect},
1045    {"nSetMaskFilter","(JJ)J", (void*) PaintGlue::setMaskFilter},
1046    {"nSetTypeface","(JJ)J", (void*) PaintGlue::setTypeface},
1047    {"nGetTextAlign","(J)I", (void*) PaintGlue::getTextAlign},
1048    {"nSetTextAlign","(JI)V", (void*) PaintGlue::setTextAlign},
1049    {"nSetTextLocalesByMinikinLangListId","(JI)V",
1050            (void*) PaintGlue::setTextLocalesByMinikinLangListId},
1051    {"nIsElegantTextHeight","(J)Z", (void*) PaintGlue::isElegantTextHeight},
1052    {"nSetElegantTextHeight","(JZ)V", (void*) PaintGlue::setElegantTextHeight},
1053    {"nGetTextSize","(J)F", (void*) PaintGlue::getTextSize},
1054    {"nSetTextSize","(JF)V", (void*) PaintGlue::setTextSize},
1055    {"nGetTextScaleX","(J)F", (void*) PaintGlue::getTextScaleX},
1056    {"nSetTextScaleX","(JF)V", (void*) PaintGlue::setTextScaleX},
1057    {"nGetTextSkewX","(J)F", (void*) PaintGlue::getTextSkewX},
1058    {"nSetTextSkewX","(JF)V", (void*) PaintGlue::setTextSkewX},
1059    {"nGetLetterSpacing","(J)F", (void*) PaintGlue::getLetterSpacing},
1060    {"nSetLetterSpacing","(JF)V", (void*) PaintGlue::setLetterSpacing},
1061    {"nGetWordSpacing","(J)F", (void*) PaintGlue::getWordSpacing},
1062    {"nSetWordSpacing","(JF)V", (void*) PaintGlue::setWordSpacing},
1063    {"nGetHyphenEdit", "(J)I", (void*) PaintGlue::getHyphenEdit},
1064    {"nSetHyphenEdit", "(JI)V", (void*) PaintGlue::setHyphenEdit},
1065    {"nAscent","(JJ)F", (void*) PaintGlue::ascent},
1066    {"nDescent","(JJ)F", (void*) PaintGlue::descent},
1067    {"nSetShadowLayer", "(JFFFI)V", (void*)PaintGlue::setShadowLayer},
1068    {"nHasShadowLayer", "(J)Z", (void*)PaintGlue::hasShadowLayer}
1069};
1070
1071int register_android_graphics_Paint(JNIEnv* env) {
1072    gFontMetrics_class = FindClassOrDie(env, "android/graphics/Paint$FontMetrics");
1073    gFontMetrics_class = MakeGlobalRefOrDie(env, gFontMetrics_class);
1074
1075    gFontMetrics_fieldID.top = GetFieldIDOrDie(env, gFontMetrics_class, "top", "F");
1076    gFontMetrics_fieldID.ascent = GetFieldIDOrDie(env, gFontMetrics_class, "ascent", "F");
1077    gFontMetrics_fieldID.descent = GetFieldIDOrDie(env, gFontMetrics_class, "descent", "F");
1078    gFontMetrics_fieldID.bottom = GetFieldIDOrDie(env, gFontMetrics_class, "bottom", "F");
1079    gFontMetrics_fieldID.leading = GetFieldIDOrDie(env, gFontMetrics_class, "leading", "F");
1080
1081    gFontMetricsInt_class = FindClassOrDie(env, "android/graphics/Paint$FontMetricsInt");
1082    gFontMetricsInt_class = MakeGlobalRefOrDie(env, gFontMetricsInt_class);
1083
1084    gFontMetricsInt_fieldID.top = GetFieldIDOrDie(env, gFontMetricsInt_class, "top", "I");
1085    gFontMetricsInt_fieldID.ascent = GetFieldIDOrDie(env, gFontMetricsInt_class, "ascent", "I");
1086    gFontMetricsInt_fieldID.descent = GetFieldIDOrDie(env, gFontMetricsInt_class, "descent", "I");
1087    gFontMetricsInt_fieldID.bottom = GetFieldIDOrDie(env, gFontMetricsInt_class, "bottom", "I");
1088    gFontMetricsInt_fieldID.leading = GetFieldIDOrDie(env, gFontMetricsInt_class, "leading", "I");
1089
1090    return RegisterMethodsOrDie(env, "android/graphics/Paint", methods, NELEM(methods));
1091}
1092
1093}
1094