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 #undef LOG_TAG
19 #define LOG_TAG "Paint"
20
21 #include <utils/Log.h>
22
23 #include "GraphicsJNI.h"
24 #include <nativehelper/ScopedStringChars.h>
25 #include <nativehelper/ScopedUtfChars.h>
26 #include <nativehelper/ScopedPrimitiveArray.h>
27
28 #include "SkColorFilter.h"
29 #include "SkFont.h"
30 #include "SkFontMetrics.h"
31 #include "SkFontTypes.h"
32 #include "SkMaskFilter.h"
33 #include "SkPath.h"
34 #include "SkPathEffect.h"
35 #include "SkShader.h"
36 #include "SkBlendMode.h"
37 #include "unicode/uloc.h"
38 #include "unicode/ushape.h"
39 #include "utils/Blur.h"
40
41 #include <hwui/BlurDrawLooper.h>
42 #include <hwui/MinikinSkia.h>
43 #include <hwui/MinikinUtils.h>
44 #include <hwui/Paint.h>
45 #include <hwui/Typeface.h>
46 #include <minikin/GraphemeBreak.h>
47 #include <minikin/LocaleList.h>
48 #include <minikin/Measurement.h>
49 #include <minikin/MinikinPaint.h>
50 #include <unicode/utf16.h>
51
52 #include <cassert>
53 #include <cstring>
54 #include <memory>
55 #include <vector>
56
57 namespace android {
58
getPosTextPath(const SkFont & font,const uint16_t glyphs[],int count,const SkPoint pos[],SkPath * dst)59 static void getPosTextPath(const SkFont& font, const uint16_t glyphs[], int count,
60 const SkPoint pos[], SkPath* dst) {
61 dst->reset();
62 struct Rec {
63 SkPath* fDst;
64 const SkPoint* fPos;
65 } rec = { dst, pos };
66 font.getPaths(glyphs, count, [](const SkPath* src, const SkMatrix& mx, void* ctx) {
67 Rec* rec = (Rec*)ctx;
68 if (src) {
69 SkMatrix tmp(mx);
70 tmp.postTranslate(rec->fPos->fX, rec->fPos->fY);
71 rec->fDst->addPath(*src, tmp);
72 }
73 rec->fPos += 1;
74 }, &rec);
75 }
76
77 namespace PaintGlue {
78 enum MoveOpt {
79 AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT
80 };
81
deletePaint(Paint * paint)82 static void deletePaint(Paint* paint) {
83 delete paint;
84 }
85
getNativeFinalizer(JNIEnv *,jobject)86 static jlong getNativeFinalizer(JNIEnv*, jobject) {
87 return static_cast<jlong>(reinterpret_cast<uintptr_t>(&deletePaint));
88 }
89
init(JNIEnv * env,jobject)90 static jlong init(JNIEnv* env, jobject) {
91 return reinterpret_cast<jlong>(new Paint);
92 }
93
initWithPaint(JNIEnv * env,jobject clazz,jlong paintHandle)94 static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) {
95 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
96 Paint* obj = new Paint(*paint);
97 return reinterpret_cast<jlong>(obj);
98 }
99
breakText(JNIEnv * env,const Paint & paint,const Typeface * typeface,const jchar text[],int count,float maxWidth,jint bidiFlags,jfloatArray jmeasured,const bool forwardScan)100 static int breakText(JNIEnv* env, const Paint& paint, const Typeface* typeface,
101 const jchar text[], int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured,
102 const bool forwardScan) {
103 size_t measuredCount = 0;
104 float measured = 0;
105
106 std::unique_ptr<float[]> advancesArray(new float[count]);
107 MinikinUtils::measureText(&paint, static_cast<minikin::Bidi>(bidiFlags), typeface, text,
108 0, count, count, advancesArray.get());
109
110 for (int i = 0; i < count; i++) {
111 // traverse in the given direction
112 int index = forwardScan ? i : (count - i - 1);
113 float width = advancesArray[index];
114 if (measured + width > maxWidth) {
115 break;
116 }
117 // properly handle clusters when scanning backwards
118 if (forwardScan || width != 0.0f) {
119 measuredCount = i + 1;
120 }
121 measured += width;
122 }
123
124 if (jmeasured && env->GetArrayLength(jmeasured) > 0) {
125 AutoJavaFloatArray autoMeasured(env, jmeasured, 1);
126 jfloat* array = autoMeasured.ptr();
127 array[0] = measured;
128 }
129 return measuredCount;
130 }
131
breakTextC(JNIEnv * env,jobject clazz,jlong paintHandle,jcharArray jtext,jint index,jint count,jfloat maxWidth,jint bidiFlags,jfloatArray jmeasuredWidth)132 static jint breakTextC(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray jtext,
133 jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) {
134 NPE_CHECK_RETURN_ZERO(env, jtext);
135
136 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
137 const Typeface* typeface = paint->getAndroidTypeface();
138
139 bool forwardTextDirection;
140 if (count < 0) {
141 forwardTextDirection = false;
142 count = -count;
143 }
144 else {
145 forwardTextDirection = true;
146 }
147
148 if ((index < 0) || (index + count > env->GetArrayLength(jtext))) {
149 doThrowAIOOBE(env);
150 return 0;
151 }
152
153 const jchar* text = env->GetCharArrayElements(jtext, nullptr);
154 count = breakText(env, *paint, typeface, text + index, count, maxWidth,
155 bidiFlags, jmeasuredWidth, forwardTextDirection);
156 env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text),
157 JNI_ABORT);
158 return count;
159 }
160
breakTextS(JNIEnv * env,jobject clazz,jlong paintHandle,jstring jtext,jboolean forwards,jfloat maxWidth,jint bidiFlags,jfloatArray jmeasuredWidth)161 static jint breakTextS(JNIEnv* env, jobject clazz, jlong paintHandle, jstring jtext,
162 jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) {
163 NPE_CHECK_RETURN_ZERO(env, jtext);
164
165 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
166 const Typeface* typeface = paint->getAndroidTypeface();
167
168 int count = env->GetStringLength(jtext);
169 const jchar* text = env->GetStringChars(jtext, nullptr);
170 count = breakText(env, *paint, typeface, text, count, maxWidth, bidiFlags, jmeasuredWidth, forwards);
171 env->ReleaseStringChars(jtext, text);
172 return count;
173 }
174
doTextAdvances(JNIEnv * env,Paint * paint,const Typeface * typeface,const jchar * text,jint start,jint count,jint contextCount,jint bidiFlags,jfloatArray advances,jint advancesIndex)175 static jfloat doTextAdvances(JNIEnv *env, Paint *paint, const Typeface* typeface,
176 const jchar *text, jint start, jint count, jint contextCount, jint bidiFlags,
177 jfloatArray advances, jint advancesIndex) {
178 NPE_CHECK_RETURN_ZERO(env, text);
179
180 if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) {
181 doThrowAIOOBE(env);
182 return 0;
183 }
184 if (count == 0) {
185 return 0;
186 }
187 if (advances) {
188 size_t advancesLength = env->GetArrayLength(advances);
189 if ((size_t)(count + advancesIndex) > advancesLength) {
190 doThrowAIOOBE(env);
191 return 0;
192 }
193 }
194 std::unique_ptr<jfloat[]> advancesArray;
195 if (advances) {
196 advancesArray.reset(new jfloat[count]);
197 }
198 const float advance = MinikinUtils::measureText(paint,
199 static_cast<minikin::Bidi>(bidiFlags), typeface, text, start, count, contextCount,
200 advancesArray.get());
201 if (advances) {
202 env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray.get());
203 }
204 return advance;
205 }
206
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)207 static jfloat getTextAdvances___CIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle,
208 jcharArray text, jint index, jint count, jint contextIndex, jint contextCount,
209 jint bidiFlags, jfloatArray advances, jint advancesIndex) {
210 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
211 const Typeface* typeface = paint->getAndroidTypeface();
212 jchar* textArray = env->GetCharArrayElements(text, nullptr);
213 jfloat result = doTextAdvances(env, paint, typeface, textArray + contextIndex,
214 index - contextIndex, count, contextCount, bidiFlags, advances, advancesIndex);
215 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
216 return result;
217 }
218
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)219 static jfloat getTextAdvances__StringIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle,
220 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint bidiFlags,
221 jfloatArray advances, jint advancesIndex) {
222 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
223 const Typeface* typeface = paint->getAndroidTypeface();
224 const jchar* textArray = env->GetStringChars(text, nullptr);
225 jfloat result = doTextAdvances(env, paint, typeface, textArray + contextStart,
226 start - contextStart, end - start, contextEnd - contextStart, bidiFlags,
227 advances, advancesIndex);
228 env->ReleaseStringChars(text, textArray);
229 return result;
230 }
231
doTextRunCursor(JNIEnv * env,Paint * paint,const Typeface * typeface,const jchar * text,jint start,jint count,jint dir,jint offset,jint opt)232 static jint doTextRunCursor(JNIEnv *env, Paint* paint, const Typeface* typeface,
233 const jchar *text, jint start, jint count, jint dir, jint offset, jint opt) {
234 minikin::GraphemeBreak::MoveOpt moveOpt = minikin::GraphemeBreak::MoveOpt(opt);
235 minikin::Bidi bidiFlags = dir == 1 ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR;
236 std::unique_ptr<float[]> advancesArray(new float[count]);
237 MinikinUtils::measureText(paint, bidiFlags, typeface, text, start, count, start + count,
238 advancesArray.get());
239 size_t result = minikin::GraphemeBreak::getTextRunCursor(advancesArray.get(), text,
240 start, count, offset, moveOpt);
241 return static_cast<jint>(result);
242 }
243
getTextRunCursor___C(JNIEnv * env,jobject clazz,jlong paintHandle,jcharArray text,jint contextStart,jint contextCount,jint dir,jint offset,jint cursorOpt)244 static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text,
245 jint contextStart, jint contextCount, jint dir, jint offset, jint cursorOpt) {
246 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
247 const Typeface* typeface = paint->getAndroidTypeface();
248 jchar* textArray = env->GetCharArrayElements(text, nullptr);
249 jint result = doTextRunCursor(env, paint, typeface, textArray,
250 contextStart, contextCount, dir, offset, cursorOpt);
251 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
252 return result;
253 }
254
getTextRunCursor__String(JNIEnv * env,jobject clazz,jlong paintHandle,jstring text,jint contextStart,jint contextEnd,jint dir,jint offset,jint cursorOpt)255 static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle,
256 jstring text, jint contextStart, jint contextEnd, jint dir, jint offset,
257 jint cursorOpt) {
258 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
259 const Typeface* typeface = paint->getAndroidTypeface();
260 const jchar* textArray = env->GetStringChars(text, nullptr);
261 jint result = doTextRunCursor(env, paint, typeface, textArray,
262 contextStart, contextEnd - contextStart, dir, offset, cursorOpt);
263 env->ReleaseStringChars(text, textArray);
264 return result;
265 }
266
267 class GetTextFunctor {
268 public:
GetTextFunctor(const minikin::Layout & layout,SkPath * path,jfloat x,jfloat y,Paint * paint,uint16_t * glyphs,SkPoint * pos)269 GetTextFunctor(const minikin::Layout& layout, SkPath* path, jfloat x, jfloat y,
270 Paint* paint, uint16_t* glyphs, SkPoint* pos)
271 : layout(layout), path(path), x(x), y(y), paint(paint), glyphs(glyphs), pos(pos) {
272 }
273
operator ()(size_t start,size_t end)274 void operator()(size_t start, size_t end) {
275 for (size_t i = start; i < end; i++) {
276 glyphs[i] = layout.getGlyphId(i);
277 pos[i].fX = x + layout.getX(i);
278 pos[i].fY = y + layout.getY(i);
279 }
280 const SkFont& font = paint->getSkFont();
281 if (start == 0) {
282 getPosTextPath(font, glyphs, end, pos, path);
283 } else {
284 getPosTextPath(font, glyphs + start, end - start, pos + start, &tmpPath);
285 path->addPath(tmpPath);
286 }
287 }
288 private:
289 const minikin::Layout& layout;
290 SkPath* path;
291 jfloat x;
292 jfloat y;
293 Paint* paint;
294 uint16_t* glyphs;
295 SkPoint* pos;
296 SkPath tmpPath;
297 };
298
getTextPath(JNIEnv * env,Paint * paint,const Typeface * typeface,const jchar * text,jint count,jint bidiFlags,jfloat x,jfloat y,SkPath * path)299 static void getTextPath(JNIEnv* env, Paint* paint, const Typeface* typeface, const jchar* text,
300 jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) {
301 minikin::Layout layout = MinikinUtils::doLayout(
302 paint, static_cast<minikin::Bidi>(bidiFlags), typeface,
303 text, count, // text buffer
304 0, count, // draw range
305 0, count, // context range
306 nullptr);
307 size_t nGlyphs = layout.nGlyphs();
308 uint16_t* glyphs = new uint16_t[nGlyphs];
309 SkPoint* pos = new SkPoint[nGlyphs];
310
311 x += MinikinUtils::xOffsetForTextAlign(paint, layout);
312 Paint::Align align = paint->getTextAlign();
313 paint->setTextAlign(Paint::kLeft_Align);
314 GetTextFunctor f(layout, path, x, y, paint, glyphs, pos);
315 MinikinUtils::forFontRun(layout, paint, f);
316 paint->setTextAlign(align);
317 delete[] glyphs;
318 delete[] pos;
319 }
320
getTextPath___C(JNIEnv * env,jobject clazz,jlong paintHandle,jint bidiFlags,jcharArray text,jint index,jint count,jfloat x,jfloat y,jlong pathHandle)321 static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags,
322 jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) {
323 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
324 const Typeface* typeface = paint->getAndroidTypeface();
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
getTextPath__String(JNIEnv * env,jobject clazz,jlong paintHandle,jint bidiFlags,jstring text,jint start,jint end,jfloat x,jfloat y,jlong pathHandle)331 static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags,
332 jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) {
333 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
334 const Typeface* typeface = paint->getAndroidTypeface();
335 SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
336 const jchar* textArray = env->GetStringChars(text, nullptr);
337 getTextPath(env, paint, typeface, textArray + start, end - start, bidiFlags, x, y, path);
338 env->ReleaseStringChars(text, textArray);
339 }
340
doTextBounds(JNIEnv * env,const jchar * text,int count,jobject bounds,const Paint & paint,const Typeface * typeface,jint bidiFlagsInt)341 static void doTextBounds(JNIEnv* env, const jchar* text, int count, jobject bounds,
342 const Paint& paint, const Typeface* typeface, jint bidiFlagsInt) {
343 SkRect r;
344 SkIRect ir;
345
346 minikin::MinikinRect rect;
347 minikin::Bidi bidiFlags = static_cast<minikin::Bidi>(bidiFlagsInt);
348 MinikinUtils::getBounds(&paint, bidiFlags, typeface, text, count, &rect);
349 r.fLeft = rect.mLeft;
350 r.fTop = rect.mTop;
351 r.fRight = rect.mRight;
352 r.fBottom = rect.mBottom;
353 r.roundOut(&ir);
354 GraphicsJNI::irect_to_jrect(ir, env, bounds);
355 }
356
getStringBounds(JNIEnv * env,jobject,jlong paintHandle,jstring text,jint start,jint end,jint bidiFlags,jobject bounds)357 static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, jstring text, jint start,
358 jint end, jint bidiFlags, jobject bounds) {
359 const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
360 const Typeface* typeface = paint->getAndroidTypeface();
361 const jchar* textArray = env->GetStringChars(text, nullptr);
362 doTextBounds(env, textArray + start, end - start, bounds, *paint, typeface, bidiFlags);
363 env->ReleaseStringChars(text, textArray);
364 }
365
getCharArrayBounds(JNIEnv * env,jobject,jlong paintHandle,jcharArray text,jint index,jint count,jint bidiFlags,jobject bounds)366 static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, jcharArray text,
367 jint index, jint count, jint bidiFlags, jobject bounds) {
368 const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
369 const Typeface* typeface = paint->getAndroidTypeface();
370 const jchar* textArray = env->GetCharArrayElements(text, nullptr);
371 doTextBounds(env, textArray + index, count, bounds, *paint, typeface, bidiFlags);
372 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray),
373 JNI_ABORT);
374 }
375
376 // Returns true if the given string is exact one pair of regional indicators.
isFlag(const jchar * str,size_t length)377 static bool isFlag(const jchar* str, size_t length) {
378 const jchar RI_LEAD_SURROGATE = 0xD83C;
379 const jchar RI_TRAIL_SURROGATE_MIN = 0xDDE6;
380 const jchar RI_TRAIL_SURROGATE_MAX = 0xDDFF;
381
382 if (length != 4) {
383 return false;
384 }
385 if (str[0] != RI_LEAD_SURROGATE || str[2] != RI_LEAD_SURROGATE) {
386 return false;
387 }
388 return RI_TRAIL_SURROGATE_MIN <= str[1] && str[1] <= RI_TRAIL_SURROGATE_MAX &&
389 RI_TRAIL_SURROGATE_MIN <= str[3] && str[3] <= RI_TRAIL_SURROGATE_MAX;
390 }
391
layoutContainsNotdef(const minikin::Layout & layout)392 static jboolean layoutContainsNotdef(const minikin::Layout& layout) {
393 for (size_t i = 0; i < layout.nGlyphs(); i++) {
394 if (layout.getGlyphId(i) == 0) {
395 return true;
396 }
397 }
398 return false;
399 }
400
401 // Don't count glyphs that are the recommended "space" glyph and are zero width.
402 // This logic makes assumptions about HarfBuzz layout, but does correctly handle
403 // cases where ligatures form and zero width space glyphs are left in as
404 // placeholders.
countNonSpaceGlyphs(const minikin::Layout & layout)405 static size_t countNonSpaceGlyphs(const minikin::Layout& layout) {
406 size_t count = 0;
407 static unsigned int kSpaceGlyphId = 3;
408 for (size_t i = 0; i < layout.nGlyphs(); i++) {
409 if (layout.getGlyphId(i) != kSpaceGlyphId || layout.getCharAdvance(i) != 0.0) {
410 count++;
411 }
412 }
413 return count;
414 }
415
hasGlyph(JNIEnv * env,jclass,jlong paintHandle,jint bidiFlags,jstring string)416 static jboolean hasGlyph(JNIEnv *env, jclass, jlong paintHandle, jint bidiFlags,
417 jstring string) {
418 const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
419 const Typeface* typeface = paint->getAndroidTypeface();
420 ScopedStringChars str(env, string);
421
422 /* Start by rejecting unsupported base code point and variation selector pairs. */
423 size_t nChars = 0;
424 const uint32_t kStartOfString = 0xFFFFFFFF;
425 uint32_t prevCp = kStartOfString;
426 for (size_t i = 0; i < str.size(); i++) {
427 jchar cu = str[i];
428 uint32_t cp = cu;
429 if (U16_IS_TRAIL(cu)) {
430 // invalid UTF-16, unpaired trailing surrogate
431 return false;
432 } else if (U16_IS_LEAD(cu)) {
433 if (i + 1 == str.size()) {
434 // invalid UTF-16, unpaired leading surrogate at end of string
435 return false;
436 }
437 i++;
438 jchar cu2 = str[i];
439 if (!U16_IS_TRAIL(cu2)) {
440 // invalid UTF-16, unpaired leading surrogate
441 return false;
442 }
443 cp = U16_GET_SUPPLEMENTARY(cu, cu2);
444 }
445
446 if (prevCp != kStartOfString &&
447 ((0xFE00 <= cp && cp <= 0xFE0F) || (0xE0100 <= cp && cp <= 0xE01EF))) {
448 bool hasVS = MinikinUtils::hasVariationSelector(typeface, prevCp, cp);
449 if (!hasVS) {
450 // No font has a glyph for the code point and variation selector pair.
451 return false;
452 } else if (nChars == 1 && i + 1 == str.size()) {
453 // The string is just a codepoint and a VS, we have an authoritative answer
454 return true;
455 }
456 }
457 nChars++;
458 prevCp = cp;
459 }
460 minikin::Layout layout = MinikinUtils::doLayout(paint,
461 static_cast<minikin::Bidi>(bidiFlags), typeface,
462 str.get(), str.size(), // text buffer
463 0, str.size(), // draw range
464 0, str.size(), // context range
465 nullptr);
466 size_t nGlyphs = countNonSpaceGlyphs(layout);
467 if (nGlyphs != 1 && nChars > 1) {
468 // multiple-character input, and was not a ligature
469 // TODO: handle ZWJ/ZWNJ characters specially so we can detect certain ligatures
470 // in joining scripts, such as Arabic and Mongolian.
471 return false;
472 }
473
474 if (nGlyphs == 0 || layoutContainsNotdef(layout)) {
475 return false; // The collection doesn't have a glyph.
476 }
477
478 if (nChars == 2 && isFlag(str.get(), str.size())) {
479 // Some font may have a special glyph for unsupported regional indicator pairs.
480 // To return false for this case, need to compare the glyph id with the one of ZZ
481 // since ZZ is reserved for unknown or invalid territory.
482 // U+1F1FF (REGIONAL INDICATOR SYMBOL LETTER Z) is \uD83C\uDDFF in UTF16.
483 static const jchar ZZ_FLAG_STR[] = { 0xD83C, 0xDDFF, 0xD83C, 0xDDFF };
484 minikin::Layout zzLayout = MinikinUtils::doLayout(paint,
485 static_cast<minikin::Bidi>(bidiFlags), typeface,
486 ZZ_FLAG_STR, 4, // text buffer
487 0, 4, // draw range
488 0, 4, // context range
489 nullptr);
490 if (zzLayout.nGlyphs() != 1 || layoutContainsNotdef(zzLayout)) {
491 // The font collection doesn't have a glyph for unknown flag. Just return true.
492 return true;
493 }
494 return zzLayout.getGlyphId(0) != layout.getGlyphId(0);
495 }
496 return true;
497 }
498
doRunAdvance(const Paint * paint,const Typeface * typeface,const jchar buf[],jint start,jint count,jint bufSize,jboolean isRtl,jint offset)499 static jfloat doRunAdvance(const Paint* paint, const Typeface* typeface, const jchar buf[],
500 jint start, jint count, jint bufSize, jboolean isRtl, jint offset) {
501 minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR;
502 if (offset == start + count) {
503 return MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count,
504 bufSize, nullptr);
505 }
506 std::unique_ptr<float[]> advancesArray(new float[count]);
507 MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, bufSize,
508 advancesArray.get());
509 return minikin::getRunAdvance(advancesArray.get(), buf, start, count, offset);
510 }
511
getRunAdvance___CIIIIZI_F(JNIEnv * env,jclass,jlong paintHandle,jcharArray text,jint start,jint end,jint contextStart,jint contextEnd,jboolean isRtl,jint offset)512 static jfloat getRunAdvance___CIIIIZI_F(JNIEnv *env, jclass, jlong paintHandle, jcharArray text,
513 jint start, jint end, jint contextStart, jint contextEnd, jboolean isRtl, jint offset) {
514 const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
515 const Typeface* typeface = paint->getAndroidTypeface();
516 ScopedCharArrayRO textArray(env, text);
517 jfloat result = doRunAdvance(paint, typeface, textArray.get() + contextStart,
518 start - contextStart, end - start, contextEnd - contextStart, isRtl,
519 offset - contextStart);
520 return result;
521 }
522
doOffsetForAdvance(const Paint * paint,const Typeface * typeface,const jchar buf[],jint start,jint count,jint bufSize,jboolean isRtl,jfloat advance)523 static jint doOffsetForAdvance(const Paint* paint, const Typeface* typeface, const jchar buf[],
524 jint start, jint count, jint bufSize, jboolean isRtl, jfloat advance) {
525 minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR;
526 std::unique_ptr<float[]> advancesArray(new float[count]);
527 MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, bufSize,
528 advancesArray.get());
529 return minikin::getOffsetForAdvance(advancesArray.get(), buf, start, count, advance);
530 }
531
getOffsetForAdvance___CIIIIZF_I(JNIEnv * env,jclass,jlong paintHandle,jcharArray text,jint start,jint end,jint contextStart,jint contextEnd,jboolean isRtl,jfloat advance)532 static jint getOffsetForAdvance___CIIIIZF_I(JNIEnv *env, jclass, jlong paintHandle,
533 jcharArray text, jint start, jint end, jint contextStart, jint contextEnd,
534 jboolean isRtl, jfloat advance) {
535 const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
536 const Typeface* typeface = paint->getAndroidTypeface();
537 ScopedCharArrayRO textArray(env, text);
538 jint result = doOffsetForAdvance(paint, typeface, textArray.get() + contextStart,
539 start - contextStart, end - start, contextEnd - contextStart, isRtl, advance);
540 result += contextStart;
541 return result;
542 }
543
544 // ------------------ @FastNative ---------------------------
545
setTextLocales(JNIEnv * env,jobject clazz,jlong objHandle,jstring locales)546 static jint setTextLocales(JNIEnv* env, jobject clazz, jlong objHandle, jstring locales) {
547 Paint* obj = reinterpret_cast<Paint*>(objHandle);
548 ScopedUtfChars localesChars(env, locales);
549 jint minikinLocaleListId = minikin::registerLocaleList(localesChars.c_str());
550 obj->setMinikinLocaleListId(minikinLocaleListId);
551 return minikinLocaleListId;
552 }
553
setFontFeatureSettings(JNIEnv * env,jobject clazz,jlong paintHandle,jstring settings)554 static void setFontFeatureSettings(JNIEnv* env, jobject clazz, jlong paintHandle, jstring settings) {
555 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
556 if (!settings) {
557 paint->setFontFeatureSettings(std::string());
558 } else {
559 ScopedUtfChars settingsChars(env, settings);
560 paint->setFontFeatureSettings(std::string(settingsChars.c_str(), settingsChars.size()));
561 }
562 }
563
getMetricsInternal(jlong paintHandle,SkFontMetrics * metrics)564 static SkScalar getMetricsInternal(jlong paintHandle, SkFontMetrics *metrics) {
565 const int kElegantTop = 2500;
566 const int kElegantBottom = -1000;
567 const int kElegantAscent = 1900;
568 const int kElegantDescent = -500;
569 const int kElegantLeading = 0;
570 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
571 SkFont* font = &paint->getSkFont();
572 const Typeface* typeface = paint->getAndroidTypeface();
573 typeface = Typeface::resolveDefault(typeface);
574 minikin::FakedFont baseFont = typeface->fFontCollection->baseFontFaked(typeface->fStyle);
575 float saveSkewX = font->getSkewX();
576 bool savefakeBold = font->isEmbolden();
577 MinikinFontSkia::populateSkFont(font, baseFont.font->typeface().get(), baseFont.fakery);
578 SkScalar spacing = font->getMetrics(metrics);
579 // The populateSkPaint call may have changed fake bold / text skew
580 // because we want to measure with those effects applied, so now
581 // restore the original settings.
582 font->setSkewX(saveSkewX);
583 font->setEmbolden(savefakeBold);
584 if (paint->getFamilyVariant() == minikin::FamilyVariant::ELEGANT) {
585 SkScalar size = font->getSize();
586 metrics->fTop = -size * kElegantTop / 2048;
587 metrics->fBottom = -size * kElegantBottom / 2048;
588 metrics->fAscent = -size * kElegantAscent / 2048;
589 metrics->fDescent = -size * kElegantDescent / 2048;
590 metrics->fLeading = size * kElegantLeading / 2048;
591 spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading;
592 }
593 return spacing;
594 }
595
getFontMetrics(JNIEnv * env,jobject,jlong paintHandle,jobject metricsObj)596 static jfloat getFontMetrics(JNIEnv* env, jobject, jlong paintHandle, jobject metricsObj) {
597 SkFontMetrics metrics;
598 SkScalar spacing = getMetricsInternal(paintHandle, &metrics);
599 GraphicsJNI::set_metrics(env, metricsObj, metrics);
600 return SkScalarToFloat(spacing);
601 }
602
getFontMetricsInt(JNIEnv * env,jobject,jlong paintHandle,jobject metricsObj)603 static jint getFontMetricsInt(JNIEnv* env, jobject, jlong paintHandle, jobject metricsObj) {
604 SkFontMetrics metrics;
605 getMetricsInternal(paintHandle, &metrics);
606 return GraphicsJNI::set_metrics_int(env, metricsObj, metrics);
607 }
608
609
610 // ------------------ @CriticalNative ---------------------------
611
reset(CRITICAL_JNI_PARAMS_COMMA jlong objHandle)612 static void reset(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
613 reinterpret_cast<Paint*>(objHandle)->reset();
614 }
615
assign(CRITICAL_JNI_PARAMS_COMMA jlong dstPaintHandle,jlong srcPaintHandle)616 static void assign(CRITICAL_JNI_PARAMS_COMMA jlong dstPaintHandle, jlong srcPaintHandle) {
617 Paint* dst = reinterpret_cast<Paint*>(dstPaintHandle);
618 const Paint* src = reinterpret_cast<Paint*>(srcPaintHandle);
619 *dst = *src;
620 }
621
getFlags(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)622 static jint getFlags(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
623 uint32_t flags = reinterpret_cast<Paint*>(paintHandle)->getJavaFlags();
624 return static_cast<jint>(flags);
625 }
626
setFlags(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint flags)627 static void setFlags(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint flags) {
628 reinterpret_cast<Paint*>(paintHandle)->setJavaFlags(flags);
629 }
630
getHinting(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)631 static jint getHinting(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
632 return (SkFontHinting)reinterpret_cast<Paint*>(paintHandle)->getSkFont().getHinting()
633 == SkFontHinting::kNone ? 0 : 1;
634 }
635
setHinting(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint mode)636 static void setHinting(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint mode) {
637 reinterpret_cast<Paint*>(paintHandle)->getSkFont().setHinting(
638 mode == 0 ? SkFontHinting::kNone : SkFontHinting::kNormal);
639 }
640
setAntiAlias(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean aa)641 static void setAntiAlias(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean aa) {
642 reinterpret_cast<Paint*>(paintHandle)->setAntiAlias(aa);
643 }
644
setLinearText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean linearText)645 static void setLinearText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean linearText) {
646 reinterpret_cast<Paint*>(paintHandle)->getSkFont().setLinearMetrics(linearText);
647 }
648
setSubpixelText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean subpixelText)649 static void setSubpixelText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean subpixelText) {
650 reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSubpixel(subpixelText);
651 }
652
setUnderlineText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean underlineText)653 static void setUnderlineText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean underlineText) {
654 reinterpret_cast<Paint*>(paintHandle)->setUnderline(underlineText);
655 }
656
setStrikeThruText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean strikeThruText)657 static void setStrikeThruText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean strikeThruText) {
658 reinterpret_cast<Paint*>(paintHandle)->setStrikeThru(strikeThruText);
659 }
660
setFakeBoldText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean fakeBoldText)661 static void setFakeBoldText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean fakeBoldText) {
662 reinterpret_cast<Paint*>(paintHandle)->getSkFont().setEmbolden(fakeBoldText);
663 }
664
setFilterBitmap(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean filterBitmap)665 static void setFilterBitmap(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean filterBitmap) {
666 reinterpret_cast<Paint*>(paintHandle)->setFilterQuality(
667 filterBitmap ? kLow_SkFilterQuality : kNone_SkFilterQuality);
668 }
669
setDither(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean dither)670 static void setDither(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean dither) {
671 reinterpret_cast<Paint*>(paintHandle)->setDither(dither);
672 }
673
getStyle(CRITICAL_JNI_PARAMS_COMMA jlong objHandle)674 static jint getStyle(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
675 Paint* obj = reinterpret_cast<Paint*>(objHandle);
676 return static_cast<jint>(obj->getStyle());
677 }
678
setStyle(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jint styleHandle)679 static void setStyle(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint styleHandle) {
680 Paint* obj = reinterpret_cast<Paint*>(objHandle);
681 Paint::Style style = static_cast<Paint::Style>(styleHandle);
682 obj->setStyle(style);
683 }
684
setColorLong(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jlong colorSpaceHandle,jlong colorLong)685 static void setColorLong(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jlong colorSpaceHandle,
686 jlong colorLong) {
687 SkColor4f color = GraphicsJNI::convertColorLong(colorLong);
688 sk_sp<SkColorSpace> cs = GraphicsJNI::getNativeColorSpace(colorSpaceHandle);
689 reinterpret_cast<Paint*>(paintHandle)->setColor4f(color, cs.get());
690 }
691
setColor(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint color)692 static void setColor(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint color) {
693 reinterpret_cast<Paint*>(paintHandle)->setColor(color);
694 }
695
setAlpha(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint a)696 static void setAlpha(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint a) {
697 reinterpret_cast<Paint*>(paintHandle)->setAlpha(a);
698 }
699
getStrokeWidth(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)700 static jfloat getStrokeWidth(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
701 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeWidth());
702 }
703
setStrokeWidth(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jfloat width)704 static void setStrokeWidth(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat width) {
705 reinterpret_cast<Paint*>(paintHandle)->setStrokeWidth(width);
706 }
707
getStrokeMiter(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)708 static jfloat getStrokeMiter(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
709 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeMiter());
710 }
711
setStrokeMiter(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jfloat miter)712 static void setStrokeMiter(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat miter) {
713 reinterpret_cast<Paint*>(paintHandle)->setStrokeMiter(miter);
714 }
715
getStrokeCap(CRITICAL_JNI_PARAMS_COMMA jlong objHandle)716 static jint getStrokeCap(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
717 Paint* obj = reinterpret_cast<Paint*>(objHandle);
718 return static_cast<jint>(obj->getStrokeCap());
719 }
720
setStrokeCap(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jint capHandle)721 static void setStrokeCap(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint capHandle) {
722 Paint* obj = reinterpret_cast<Paint*>(objHandle);
723 Paint::Cap cap = static_cast<Paint::Cap>(capHandle);
724 obj->setStrokeCap(cap);
725 }
726
getStrokeJoin(CRITICAL_JNI_PARAMS_COMMA jlong objHandle)727 static jint getStrokeJoin(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
728 Paint* obj = reinterpret_cast<Paint*>(objHandle);
729 return static_cast<jint>(obj->getStrokeJoin());
730 }
731
setStrokeJoin(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jint joinHandle)732 static void setStrokeJoin(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint joinHandle) {
733 Paint* obj = reinterpret_cast<Paint*>(objHandle);
734 Paint::Join join = (Paint::Join) joinHandle;
735 obj->setStrokeJoin(join);
736 }
737
getFillPath(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jlong srcHandle,jlong dstHandle)738 static jboolean getFillPath(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong srcHandle, jlong dstHandle) {
739 Paint* obj = reinterpret_cast<Paint*>(objHandle);
740 SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
741 SkPath* dst = reinterpret_cast<SkPath*>(dstHandle);
742 return obj->getFillPath(*src, dst) ? JNI_TRUE : JNI_FALSE;
743 }
744
setShader(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jlong shaderHandle)745 static jlong setShader(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong shaderHandle) {
746 Paint* obj = reinterpret_cast<Paint*>(objHandle);
747 SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle);
748 obj->setShader(sk_ref_sp(shader));
749 return reinterpret_cast<jlong>(obj->getShader());
750 }
751
setColorFilter(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jlong filterHandle)752 static jlong setColorFilter(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong filterHandle) {
753 Paint* obj = reinterpret_cast<Paint *>(objHandle);
754 SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(filterHandle);
755 obj->setColorFilter(sk_ref_sp(filter));
756 return reinterpret_cast<jlong>(obj->getColorFilter());
757 }
758
setXfermode(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint xfermodeHandle)759 static void setXfermode(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint xfermodeHandle) {
760 // validate that the Java enum values match our expectations
761 static_assert(0 == static_cast<int>(SkBlendMode::kClear), "xfermode_mismatch");
762 static_assert(1 == static_cast<int>(SkBlendMode::kSrc), "xfermode_mismatch");
763 static_assert(2 == static_cast<int>(SkBlendMode::kDst), "xfermode_mismatch");
764 static_assert(3 == static_cast<int>(SkBlendMode::kSrcOver), "xfermode_mismatch");
765 static_assert(4 == static_cast<int>(SkBlendMode::kDstOver), "xfermode_mismatch");
766 static_assert(5 == static_cast<int>(SkBlendMode::kSrcIn), "xfermode_mismatch");
767 static_assert(6 == static_cast<int>(SkBlendMode::kDstIn), "xfermode_mismatch");
768 static_assert(7 == static_cast<int>(SkBlendMode::kSrcOut), "xfermode_mismatch");
769 static_assert(8 == static_cast<int>(SkBlendMode::kDstOut), "xfermode_mismatch");
770 static_assert(9 == static_cast<int>(SkBlendMode::kSrcATop), "xfermode_mismatch");
771 static_assert(10 == static_cast<int>(SkBlendMode::kDstATop), "xfermode_mismatch");
772 static_assert(11 == static_cast<int>(SkBlendMode::kXor), "xfermode_mismatch");
773 static_assert(12 == static_cast<int>(SkBlendMode::kPlus), "xfermode_mismatch");
774 static_assert(13 == static_cast<int>(SkBlendMode::kModulate), "xfermode_mismatch");
775 static_assert(14 == static_cast<int>(SkBlendMode::kScreen), "xfermode_mismatch");
776 static_assert(15 == static_cast<int>(SkBlendMode::kOverlay), "xfermode_mismatch");
777 static_assert(16 == static_cast<int>(SkBlendMode::kDarken), "xfermode_mismatch");
778 static_assert(17 == static_cast<int>(SkBlendMode::kLighten), "xfermode_mismatch");
779 static_assert(18 == static_cast<int>(SkBlendMode::kColorDodge), "xfermode mismatch");
780 static_assert(19 == static_cast<int>(SkBlendMode::kColorBurn), "xfermode mismatch");
781 static_assert(20 == static_cast<int>(SkBlendMode::kHardLight), "xfermode mismatch");
782 static_assert(21 == static_cast<int>(SkBlendMode::kSoftLight), "xfermode mismatch");
783 static_assert(22 == static_cast<int>(SkBlendMode::kDifference), "xfermode mismatch");
784 static_assert(23 == static_cast<int>(SkBlendMode::kExclusion), "xfermode mismatch");
785 static_assert(24 == static_cast<int>(SkBlendMode::kMultiply), "xfermode mismatch");
786 static_assert(25 == static_cast<int>(SkBlendMode::kHue), "xfermode mismatch");
787 static_assert(26 == static_cast<int>(SkBlendMode::kSaturation), "xfermode mismatch");
788 static_assert(27 == static_cast<int>(SkBlendMode::kColor), "xfermode mismatch");
789 static_assert(28 == static_cast<int>(SkBlendMode::kLuminosity), "xfermode mismatch");
790
791 SkBlendMode mode = static_cast<SkBlendMode>(xfermodeHandle);
792 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
793 paint->setBlendMode(mode);
794 }
795
setPathEffect(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jlong effectHandle)796 static jlong setPathEffect(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong effectHandle) {
797 Paint* obj = reinterpret_cast<Paint*>(objHandle);
798 SkPathEffect* effect = reinterpret_cast<SkPathEffect*>(effectHandle);
799 obj->setPathEffect(sk_ref_sp(effect));
800 return reinterpret_cast<jlong>(obj->getPathEffect());
801 }
802
setMaskFilter(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jlong maskfilterHandle)803 static jlong setMaskFilter(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong maskfilterHandle) {
804 Paint* obj = reinterpret_cast<Paint*>(objHandle);
805 SkMaskFilter* maskfilter = reinterpret_cast<SkMaskFilter*>(maskfilterHandle);
806 obj->setMaskFilter(sk_ref_sp(maskfilter));
807 return reinterpret_cast<jlong>(obj->getMaskFilter());
808 }
809
setTypeface(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jlong typefaceHandle)810 static void setTypeface(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong typefaceHandle) {
811 Paint* paint = reinterpret_cast<Paint*>(objHandle);
812 paint->setAndroidTypeface(reinterpret_cast<Typeface*>(typefaceHandle));
813 }
814
getTextAlign(CRITICAL_JNI_PARAMS_COMMA jlong objHandle)815 static jint getTextAlign(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
816 Paint* obj = reinterpret_cast<Paint*>(objHandle);
817 return static_cast<jint>(obj->getTextAlign());
818 }
819
setTextAlign(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jint alignHandle)820 static void setTextAlign(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint alignHandle) {
821 Paint* obj = reinterpret_cast<Paint*>(objHandle);
822 Paint::Align align = static_cast<Paint::Align>(alignHandle);
823 obj->setTextAlign(align);
824 }
825
setTextLocalesByMinikinLocaleListId(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,jint minikinLocaleListId)826 static void setTextLocalesByMinikinLocaleListId(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,
827 jint minikinLocaleListId) {
828 Paint* obj = reinterpret_cast<Paint*>(objHandle);
829 obj->setMinikinLocaleListId(minikinLocaleListId);
830 }
831
isElegantTextHeight(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)832 static jboolean isElegantTextHeight(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
833 Paint* obj = reinterpret_cast<Paint*>(paintHandle);
834 return obj->getFamilyVariant() == minikin::FamilyVariant::ELEGANT;
835 }
836
setElegantTextHeight(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jboolean aa)837 static void setElegantTextHeight(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean aa) {
838 Paint* obj = reinterpret_cast<Paint*>(paintHandle);
839 obj->setFamilyVariant(
840 aa ? minikin::FamilyVariant::ELEGANT : minikin::FamilyVariant::DEFAULT);
841 }
842
getTextSize(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)843 static jfloat getTextSize(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
844 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize());
845 }
846
setTextSize(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jfloat textSize)847 static void setTextSize(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat textSize) {
848 if (textSize >= 0) {
849 reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSize(textSize);
850 }
851 }
852
getTextScaleX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)853 static jfloat getTextScaleX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
854 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getScaleX());
855 }
856
setTextScaleX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jfloat scaleX)857 static void setTextScaleX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat scaleX) {
858 reinterpret_cast<Paint*>(paintHandle)->getSkFont().setScaleX(scaleX);
859 }
860
getTextSkewX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)861 static jfloat getTextSkewX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
862 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSkewX());
863 }
864
setTextSkewX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jfloat skewX)865 static void setTextSkewX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat skewX) {
866 reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSkewX(skewX);
867 }
868
getLetterSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)869 static jfloat getLetterSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
870 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
871 return paint->getLetterSpacing();
872 }
873
setLetterSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jfloat letterSpacing)874 static void setLetterSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat letterSpacing) {
875 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
876 paint->setLetterSpacing(letterSpacing);
877 }
878
getWordSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)879 static jfloat getWordSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
880 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
881 return paint->getWordSpacing();
882 }
883
setWordSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jfloat wordSpacing)884 static void setWordSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat wordSpacing) {
885 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
886 paint->setWordSpacing(wordSpacing);
887 }
888
getStartHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint hyphen)889 static jint getStartHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) {
890 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
891 return static_cast<jint>(paint->getStartHyphenEdit());
892 }
893
getEndHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint hyphen)894 static jint getEndHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) {
895 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
896 return static_cast<jint>(paint->getEndHyphenEdit());
897 }
898
setStartHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint hyphen)899 static void setStartHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) {
900 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
901 paint->setStartHyphenEdit((uint32_t)hyphen);
902 }
903
setEndHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jint hyphen)904 static void setEndHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) {
905 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
906 paint->setEndHyphenEdit((uint32_t)hyphen);
907 }
908
ascent(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)909 static jfloat ascent(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
910 SkFontMetrics metrics;
911 getMetricsInternal(paintHandle, &metrics);
912 return SkScalarToFloat(metrics.fAscent);
913 }
914
descent(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)915 static jfloat descent(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
916 SkFontMetrics metrics;
917 getMetricsInternal(paintHandle, &metrics);
918 return SkScalarToFloat(metrics.fDescent);
919 }
920
getUnderlinePosition(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)921 static jfloat getUnderlinePosition(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
922 SkFontMetrics metrics;
923 getMetricsInternal(paintHandle, &metrics);
924 SkScalar position;
925 if (metrics.hasUnderlinePosition(&position)) {
926 return SkScalarToFloat(position);
927 } else {
928 const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize();
929 return SkScalarToFloat(Paint::kStdUnderline_Top * textSize);
930 }
931 }
932
getUnderlineThickness(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)933 static jfloat getUnderlineThickness(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
934 SkFontMetrics metrics;
935 getMetricsInternal(paintHandle, &metrics);
936 SkScalar thickness;
937 if (metrics.hasUnderlineThickness(&thickness)) {
938 return SkScalarToFloat(thickness);
939 } else {
940 const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize();
941 return SkScalarToFloat(Paint::kStdUnderline_Thickness * textSize);
942 }
943 }
944
getStrikeThruPosition(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)945 static jfloat getStrikeThruPosition(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
946 const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize();
947 return SkScalarToFloat(Paint::kStdStrikeThru_Top * textSize);
948 }
949
getStrikeThruThickness(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)950 static jfloat getStrikeThruThickness(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
951 const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize();
952 return SkScalarToFloat(Paint::kStdStrikeThru_Thickness * textSize);
953 }
954
setShadowLayer(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle,jfloat radius,jfloat dx,jfloat dy,jlong colorSpaceHandle,jlong colorLong)955 static void setShadowLayer(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat radius,
956 jfloat dx, jfloat dy, jlong colorSpaceHandle,
957 jlong colorLong) {
958 SkColor4f color = GraphicsJNI::convertColorLong(colorLong);
959 sk_sp<SkColorSpace> cs = GraphicsJNI::getNativeColorSpace(colorSpaceHandle);
960
961 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
962 if (radius <= 0) {
963 paint->setLooper(nullptr);
964 }
965 else {
966 SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius);
967 paint->setLooper(BlurDrawLooper::Make(color, cs.get(), sigma, {dx, dy}));
968 }
969 }
970
hasShadowLayer(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle)971 static jboolean hasShadowLayer(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
972 Paint* paint = reinterpret_cast<Paint*>(paintHandle);
973 return paint->getLooper() != nullptr;
974 }
975
equalsForTextMeasurement(CRITICAL_JNI_PARAMS_COMMA jlong lPaint,jlong rPaint)976 static jboolean equalsForTextMeasurement(CRITICAL_JNI_PARAMS_COMMA jlong lPaint, jlong rPaint) {
977 if (lPaint == rPaint) {
978 return true;
979 }
980 Paint* leftPaint = reinterpret_cast<Paint*>(lPaint);
981 Paint* rightPaint = reinterpret_cast<Paint*>(rPaint);
982
983 const Typeface* leftTypeface = Typeface::resolveDefault(leftPaint->getAndroidTypeface());
984 const Typeface* rightTypeface = Typeface::resolveDefault(rightPaint->getAndroidTypeface());
985 minikin::MinikinPaint leftMinikinPaint
986 = MinikinUtils::prepareMinikinPaint(leftPaint, leftTypeface);
987 minikin::MinikinPaint rightMinikinPaint
988 = MinikinUtils::prepareMinikinPaint(rightPaint, rightTypeface);
989
990 return leftMinikinPaint == rightMinikinPaint;
991 }
992
993 }; // namespace PaintGlue
994
995 static const JNINativeMethod methods[] = {
996 {"nGetNativeFinalizer", "()J", (void*) PaintGlue::getNativeFinalizer},
997 {"nInit","()J", (void*) PaintGlue::init},
998 {"nInitWithPaint","(J)J", (void*) PaintGlue::initWithPaint},
999 {"nBreakText","(J[CIIFI[F)I", (void*) PaintGlue::breakTextC},
1000 {"nBreakText","(JLjava/lang/String;ZFI[F)I", (void*) PaintGlue::breakTextS},
1001 {"nGetTextAdvances","(J[CIIIII[FI)F",
1002 (void*) PaintGlue::getTextAdvances___CIIIII_FI},
1003 {"nGetTextAdvances","(JLjava/lang/String;IIIII[FI)F",
1004 (void*) PaintGlue::getTextAdvances__StringIIIII_FI},
1005
1006 {"nGetTextRunCursor", "(J[CIIIII)I", (void*) PaintGlue::getTextRunCursor___C},
1007 {"nGetTextRunCursor", "(JLjava/lang/String;IIIII)I",
1008 (void*) PaintGlue::getTextRunCursor__String},
1009 {"nGetTextPath", "(JI[CIIFFJ)V", (void*) PaintGlue::getTextPath___C},
1010 {"nGetTextPath", "(JILjava/lang/String;IIFFJ)V", (void*) PaintGlue::getTextPath__String},
1011 {"nGetStringBounds", "(JLjava/lang/String;IIILandroid/graphics/Rect;)V",
1012 (void*) PaintGlue::getStringBounds },
1013 {"nGetCharArrayBounds", "(J[CIIILandroid/graphics/Rect;)V",
1014 (void*) PaintGlue::getCharArrayBounds },
1015 {"nHasGlyph", "(JILjava/lang/String;)Z", (void*) PaintGlue::hasGlyph },
1016 {"nGetRunAdvance", "(J[CIIIIZI)F", (void*) PaintGlue::getRunAdvance___CIIIIZI_F},
1017 {"nGetOffsetForAdvance", "(J[CIIIIZF)I",
1018 (void*) PaintGlue::getOffsetForAdvance___CIIIIZF_I},
1019
1020 // --------------- @FastNative ----------------------
1021
1022 {"nSetTextLocales","(JLjava/lang/String;)I", (void*) PaintGlue::setTextLocales},
1023 {"nSetFontFeatureSettings","(JLjava/lang/String;)V",
1024 (void*) PaintGlue::setFontFeatureSettings},
1025 {"nGetFontMetrics", "(JLandroid/graphics/Paint$FontMetrics;)F",
1026 (void*)PaintGlue::getFontMetrics},
1027 {"nGetFontMetricsInt", "(JLandroid/graphics/Paint$FontMetricsInt;)I",
1028 (void*)PaintGlue::getFontMetricsInt},
1029
1030 // --------------- @CriticalNative ------------------
1031
1032 {"nReset","(J)V", (void*) PaintGlue::reset},
1033 {"nSet","(JJ)V", (void*) PaintGlue::assign},
1034 {"nGetFlags","(J)I", (void*) PaintGlue::getFlags},
1035 {"nSetFlags","(JI)V", (void*) PaintGlue::setFlags},
1036 {"nGetHinting","(J)I", (void*) PaintGlue::getHinting},
1037 {"nSetHinting","(JI)V", (void*) PaintGlue::setHinting},
1038 {"nSetAntiAlias","(JZ)V", (void*) PaintGlue::setAntiAlias},
1039 {"nSetSubpixelText","(JZ)V", (void*) PaintGlue::setSubpixelText},
1040 {"nSetLinearText","(JZ)V", (void*) PaintGlue::setLinearText},
1041 {"nSetUnderlineText","(JZ)V", (void*) PaintGlue::setUnderlineText},
1042 {"nSetStrikeThruText","(JZ)V", (void*) PaintGlue::setStrikeThruText},
1043 {"nSetFakeBoldText","(JZ)V", (void*) PaintGlue::setFakeBoldText},
1044 {"nSetFilterBitmap","(JZ)V", (void*) PaintGlue::setFilterBitmap},
1045 {"nSetDither","(JZ)V", (void*) PaintGlue::setDither},
1046 {"nGetStyle","(J)I", (void*) PaintGlue::getStyle},
1047 {"nSetStyle","(JI)V", (void*) PaintGlue::setStyle},
1048 {"nSetColor","(JI)V", (void*) PaintGlue::setColor},
1049 {"nSetColor","(JJJ)V", (void*) PaintGlue::setColorLong},
1050 {"nSetAlpha","(JI)V", (void*) PaintGlue::setAlpha},
1051 {"nGetStrokeWidth","(J)F", (void*) PaintGlue::getStrokeWidth},
1052 {"nSetStrokeWidth","(JF)V", (void*) PaintGlue::setStrokeWidth},
1053 {"nGetStrokeMiter","(J)F", (void*) PaintGlue::getStrokeMiter},
1054 {"nSetStrokeMiter","(JF)V", (void*) PaintGlue::setStrokeMiter},
1055 {"nGetStrokeCap","(J)I", (void*) PaintGlue::getStrokeCap},
1056 {"nSetStrokeCap","(JI)V", (void*) PaintGlue::setStrokeCap},
1057 {"nGetStrokeJoin","(J)I", (void*) PaintGlue::getStrokeJoin},
1058 {"nSetStrokeJoin","(JI)V", (void*) PaintGlue::setStrokeJoin},
1059 {"nGetFillPath","(JJJ)Z", (void*) PaintGlue::getFillPath},
1060 {"nSetShader","(JJ)J", (void*) PaintGlue::setShader},
1061 {"nSetColorFilter","(JJ)J", (void*) PaintGlue::setColorFilter},
1062 {"nSetXfermode","(JI)V", (void*) PaintGlue::setXfermode},
1063 {"nSetPathEffect","(JJ)J", (void*) PaintGlue::setPathEffect},
1064 {"nSetMaskFilter","(JJ)J", (void*) PaintGlue::setMaskFilter},
1065 {"nSetTypeface","(JJ)V", (void*) PaintGlue::setTypeface},
1066 {"nGetTextAlign","(J)I", (void*) PaintGlue::getTextAlign},
1067 {"nSetTextAlign","(JI)V", (void*) PaintGlue::setTextAlign},
1068 {"nSetTextLocalesByMinikinLocaleListId","(JI)V",
1069 (void*) PaintGlue::setTextLocalesByMinikinLocaleListId},
1070 {"nIsElegantTextHeight","(J)Z", (void*) PaintGlue::isElegantTextHeight},
1071 {"nSetElegantTextHeight","(JZ)V", (void*) PaintGlue::setElegantTextHeight},
1072 {"nGetTextSize","(J)F", (void*) PaintGlue::getTextSize},
1073 {"nSetTextSize","(JF)V", (void*) PaintGlue::setTextSize},
1074 {"nGetTextScaleX","(J)F", (void*) PaintGlue::getTextScaleX},
1075 {"nSetTextScaleX","(JF)V", (void*) PaintGlue::setTextScaleX},
1076 {"nGetTextSkewX","(J)F", (void*) PaintGlue::getTextSkewX},
1077 {"nSetTextSkewX","(JF)V", (void*) PaintGlue::setTextSkewX},
1078 {"nGetLetterSpacing","(J)F", (void*) PaintGlue::getLetterSpacing},
1079 {"nSetLetterSpacing","(JF)V", (void*) PaintGlue::setLetterSpacing},
1080 {"nGetWordSpacing","(J)F", (void*) PaintGlue::getWordSpacing},
1081 {"nSetWordSpacing","(JF)V", (void*) PaintGlue::setWordSpacing},
1082 {"nGetStartHyphenEdit", "(J)I", (void*) PaintGlue::getStartHyphenEdit},
1083 {"nGetEndHyphenEdit", "(J)I", (void*) PaintGlue::getEndHyphenEdit},
1084 {"nSetStartHyphenEdit", "(JI)V", (void*) PaintGlue::setStartHyphenEdit},
1085 {"nSetEndHyphenEdit", "(JI)V", (void*) PaintGlue::setEndHyphenEdit},
1086 {"nAscent","(J)F", (void*) PaintGlue::ascent},
1087 {"nDescent","(J)F", (void*) PaintGlue::descent},
1088 {"nGetUnderlinePosition","(J)F", (void*) PaintGlue::getUnderlinePosition},
1089 {"nGetUnderlineThickness","(J)F", (void*) PaintGlue::getUnderlineThickness},
1090 {"nGetStrikeThruPosition","(J)F", (void*) PaintGlue::getStrikeThruPosition},
1091 {"nGetStrikeThruThickness","(J)F", (void*) PaintGlue::getStrikeThruThickness},
1092 {"nSetShadowLayer", "(JFFFJJ)V", (void*)PaintGlue::setShadowLayer},
1093 {"nHasShadowLayer", "(J)Z", (void*)PaintGlue::hasShadowLayer},
1094 {"nEqualsForTextMeasurement", "(JJ)Z", (void*)PaintGlue::equalsForTextMeasurement},
1095 };
1096
register_android_graphics_Paint(JNIEnv * env)1097 int register_android_graphics_Paint(JNIEnv* env) {
1098 return RegisterMethodsOrDie(env, "android/graphics/Paint", methods, NELEM(methods));
1099 }
1100
1101 }
1102