Paint.cpp revision 4ea7d1d2ab51fd7f67087db669dbaf693560b838
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 "SkRasterizer.h" 33#include "SkShader.h" 34#include "SkTypeface.h" 35#include "SkXfermode.h" 36#include "unicode/uloc.h" 37#include "unicode/ushape.h" 38#include "utils/Blur.h" 39 40#include <minikin/GraphemeBreak.h> 41#include <minikin/Measurement.h> 42#include <unicode/utf16.h> 43#include "MinikinSkia.h" 44#include "MinikinUtils.h" 45#include "Paint.h" 46#include "TypefaceImpl.h" 47 48#include <cassert> 49#include <cstring> 50#include <memory> 51#include <vector> 52 53namespace android { 54 55struct JMetricsID { 56 jfieldID top; 57 jfieldID ascent; 58 jfieldID descent; 59 jfieldID bottom; 60 jfieldID leading; 61}; 62 63static jclass gFontMetrics_class; 64static JMetricsID gFontMetrics_fieldID; 65 66static jclass gFontMetricsInt_class; 67static JMetricsID gFontMetricsInt_fieldID; 68 69static void defaultSettingsForAndroid(Paint* paint) { 70 // GlyphID encoding is required because we are using Harfbuzz shaping 71 paint->setTextEncoding(Paint::kGlyphID_TextEncoding); 72} 73 74namespace PaintGlue { 75 enum MoveOpt { 76 AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT 77 }; 78 79 static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) { 80 Paint* obj = reinterpret_cast<Paint*>(objHandle); 81 delete obj; 82 } 83 84 static jlong init(JNIEnv* env, jobject) { 85 static_assert(1 << 0 == SkPaint::kAntiAlias_Flag, "paint_flags_mismatch"); 86 static_assert(1 << 2 == SkPaint::kDither_Flag, "paint_flags_mismatch"); 87 static_assert(1 << 3 == SkPaint::kUnderlineText_Flag, "paint_flags_mismatch"); 88 static_assert(1 << 4 == SkPaint::kStrikeThruText_Flag, "paint_flags_mismatch"); 89 static_assert(1 << 5 == SkPaint::kFakeBoldText_Flag, "paint_flags_mismatch"); 90 static_assert(1 << 6 == SkPaint::kLinearText_Flag, "paint_flags_mismatch"); 91 static_assert(1 << 7 == SkPaint::kSubpixelText_Flag, "paint_flags_mismatch"); 92 static_assert(1 << 8 == SkPaint::kDevKernText_Flag, "paint_flags_mismatch"); 93 static_assert(1 << 10 == SkPaint::kEmbeddedBitmapText_Flag, "paint_flags_mismatch"); 94 95 Paint* obj = new Paint(); 96 defaultSettingsForAndroid(obj); 97 return reinterpret_cast<jlong>(obj); 98 } 99 100 static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) { 101 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 102 Paint* obj = new Paint(*paint); 103 return reinterpret_cast<jlong>(obj); 104 } 105 106 static void reset(JNIEnv* env, jobject clazz, jlong objHandle) { 107 Paint* obj = reinterpret_cast<Paint*>(objHandle); 108 obj->reset(); 109 defaultSettingsForAndroid(obj); 110 } 111 112 static void assign(JNIEnv* env, jobject clazz, jlong dstPaintHandle, jlong srcPaintHandle) { 113 Paint* dst = reinterpret_cast<Paint*>(dstPaintHandle); 114 const Paint* src = reinterpret_cast<Paint*>(srcPaintHandle); 115 *dst = *src; 116 } 117 118 // Equivalent to the Java Paint's FILTER_BITMAP_FLAG. 119 static const uint32_t sFilterBitmapFlag = 0x02; 120 121 static jint getFlags(JNIEnv* env, jobject, jlong paintHandle) { 122 Paint* nativePaint = reinterpret_cast<Paint*>(paintHandle); 123 uint32_t result = nativePaint->getFlags(); 124 result &= ~sFilterBitmapFlag; // Filtering no longer stored in this bit. Mask away. 125 if (nativePaint->getFilterQuality() != kNone_SkFilterQuality) { 126 result |= sFilterBitmapFlag; 127 } 128 return static_cast<jint>(result); 129 } 130 131 static void setFlags(JNIEnv* env, jobject, jlong paintHandle, jint flags) { 132 Paint* nativePaint = reinterpret_cast<Paint*>(paintHandle); 133 // Instead of modifying 0x02, change the filter level. 134 nativePaint->setFilterQuality(flags & sFilterBitmapFlag 135 ? kLow_SkFilterQuality 136 : kNone_SkFilterQuality); 137 // Don't pass through filter flag, which is no longer stored in paint's flags. 138 flags &= ~sFilterBitmapFlag; 139 // Use the existing value for 0x02. 140 const uint32_t existing0x02Flag = nativePaint->getFlags() & sFilterBitmapFlag; 141 flags |= existing0x02Flag; 142 nativePaint->setFlags(flags); 143 } 144 145 static jint getHinting(JNIEnv* env, jobject, jlong paintHandle) { 146 return reinterpret_cast<Paint*>(paintHandle)->getHinting() 147 == Paint::kNo_Hinting ? 0 : 1; 148 } 149 150 static void setHinting(JNIEnv* env, jobject, jlong paintHandle, jint mode) { 151 reinterpret_cast<Paint*>(paintHandle)->setHinting( 152 mode == 0 ? Paint::kNo_Hinting : Paint::kNormal_Hinting); 153 } 154 155 static void setAntiAlias(JNIEnv* env, jobject, jlong paintHandle, jboolean aa) { 156 reinterpret_cast<Paint*>(paintHandle)->setAntiAlias(aa); 157 } 158 159 static void setLinearText(JNIEnv* env, jobject, jlong paintHandle, jboolean linearText) { 160 reinterpret_cast<Paint*>(paintHandle)->setLinearText(linearText); 161 } 162 163 static void setSubpixelText(JNIEnv* env, jobject, jlong paintHandle, jboolean subpixelText) { 164 reinterpret_cast<Paint*>(paintHandle)->setSubpixelText(subpixelText); 165 } 166 167 static void setUnderlineText(JNIEnv* env, jobject, jlong paintHandle, jboolean underlineText) { 168 reinterpret_cast<Paint*>(paintHandle)->setUnderlineText(underlineText); 169 } 170 171 static void setStrikeThruText(JNIEnv* env, jobject, jlong paintHandle, jboolean strikeThruText) { 172 reinterpret_cast<Paint*>(paintHandle)->setStrikeThruText(strikeThruText); 173 } 174 175 static void setFakeBoldText(JNIEnv* env, jobject, jlong paintHandle, jboolean fakeBoldText) { 176 reinterpret_cast<Paint*>(paintHandle)->setFakeBoldText(fakeBoldText); 177 } 178 179 static void setFilterBitmap(JNIEnv* env, jobject, jlong paintHandle, jboolean filterBitmap) { 180 reinterpret_cast<Paint*>(paintHandle)->setFilterQuality( 181 filterBitmap ? kLow_SkFilterQuality : kNone_SkFilterQuality); 182 } 183 184 static void setDither(JNIEnv* env, jobject, jlong paintHandle, jboolean dither) { 185 reinterpret_cast<Paint*>(paintHandle)->setDither(dither); 186 } 187 188 static jint getStyle(JNIEnv* env, jobject clazz,jlong objHandle) { 189 Paint* obj = reinterpret_cast<Paint*>(objHandle); 190 return static_cast<jint>(obj->getStyle()); 191 } 192 193 static void setStyle(JNIEnv* env, jobject clazz, jlong objHandle, jint styleHandle) { 194 Paint* obj = reinterpret_cast<Paint*>(objHandle); 195 Paint::Style style = static_cast<Paint::Style>(styleHandle); 196 obj->setStyle(style); 197 } 198 199 static jint getColor(JNIEnv* env, jobject, jlong paintHandle) { 200 int color; 201 color = reinterpret_cast<Paint*>(paintHandle)->getColor(); 202 return static_cast<jint>(color); 203 } 204 205 static jint getAlpha(JNIEnv* env, jobject, jlong paintHandle) { 206 int alpha; 207 alpha = reinterpret_cast<Paint*>(paintHandle)->getAlpha(); 208 return static_cast<jint>(alpha); 209 } 210 211 static void setColor(JNIEnv* env, jobject, jlong paintHandle, jint color) { 212 reinterpret_cast<Paint*>(paintHandle)->setColor(color); 213 } 214 215 static void setAlpha(JNIEnv* env, jobject, jlong paintHandle, jint a) { 216 reinterpret_cast<Paint*>(paintHandle)->setAlpha(a); 217 } 218 219 static jfloat getStrokeWidth(JNIEnv* env, jobject, jlong paintHandle) { 220 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeWidth()); 221 } 222 223 static void setStrokeWidth(JNIEnv* env, jobject, jlong paintHandle, jfloat width) { 224 reinterpret_cast<Paint*>(paintHandle)->setStrokeWidth(width); 225 } 226 227 static jfloat getStrokeMiter(JNIEnv* env, jobject, jlong paintHandle) { 228 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeMiter()); 229 } 230 231 static void setStrokeMiter(JNIEnv* env, jobject, jlong paintHandle, jfloat miter) { 232 reinterpret_cast<Paint*>(paintHandle)->setStrokeMiter(miter); 233 } 234 235 static jint getStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle) { 236 Paint* obj = reinterpret_cast<Paint*>(objHandle); 237 return static_cast<jint>(obj->getStrokeCap()); 238 } 239 240 static void setStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle, jint capHandle) { 241 Paint* obj = reinterpret_cast<Paint*>(objHandle); 242 Paint::Cap cap = static_cast<Paint::Cap>(capHandle); 243 obj->setStrokeCap(cap); 244 } 245 246 static jint getStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle) { 247 Paint* obj = reinterpret_cast<Paint*>(objHandle); 248 return static_cast<jint>(obj->getStrokeJoin()); 249 } 250 251 static void setStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle, jint joinHandle) { 252 Paint* obj = reinterpret_cast<Paint*>(objHandle); 253 Paint::Join join = (Paint::Join) joinHandle; 254 obj->setStrokeJoin(join); 255 } 256 257 static jboolean getFillPath(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jlong dstHandle) { 258 Paint* obj = reinterpret_cast<Paint*>(objHandle); 259 SkPath* src = reinterpret_cast<SkPath*>(srcHandle); 260 SkPath* dst = reinterpret_cast<SkPath*>(dstHandle); 261 return obj->getFillPath(*src, dst) ? JNI_TRUE : JNI_FALSE; 262 } 263 264 static jlong setShader(JNIEnv* env, jobject clazz, jlong objHandle, jlong shaderHandle) { 265 Paint* obj = reinterpret_cast<Paint*>(objHandle); 266 SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle); 267 return reinterpret_cast<jlong>(obj->setShader(shader)); 268 } 269 270 static jlong setColorFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong filterHandle) { 271 Paint* obj = reinterpret_cast<Paint *>(objHandle); 272 SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(filterHandle); 273 return reinterpret_cast<jlong>(obj->setColorFilter(filter)); 274 } 275 276 static jlong setXfermode(JNIEnv* env, jobject clazz, jlong objHandle, jlong xfermodeHandle) { 277 Paint* obj = reinterpret_cast<Paint*>(objHandle); 278 SkXfermode* xfermode = reinterpret_cast<SkXfermode*>(xfermodeHandle); 279 return reinterpret_cast<jlong>(obj->setXfermode(xfermode)); 280 } 281 282 static jlong setPathEffect(JNIEnv* env, jobject clazz, jlong objHandle, jlong effectHandle) { 283 Paint* obj = reinterpret_cast<Paint*>(objHandle); 284 SkPathEffect* effect = reinterpret_cast<SkPathEffect*>(effectHandle); 285 return reinterpret_cast<jlong>(obj->setPathEffect(effect)); 286 } 287 288 static jlong setMaskFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong maskfilterHandle) { 289 Paint* obj = reinterpret_cast<Paint*>(objHandle); 290 SkMaskFilter* maskfilter = reinterpret_cast<SkMaskFilter*>(maskfilterHandle); 291 return reinterpret_cast<jlong>(obj->setMaskFilter(maskfilter)); 292 } 293 294 static jlong setTypeface(JNIEnv* env, jobject clazz, jlong objHandle, jlong typefaceHandle) { 295 // TODO: in Paint refactoring, set typeface on android Paint, not Paint 296 return NULL; 297 } 298 299 static jlong setRasterizer(JNIEnv* env, jobject clazz, jlong objHandle, jlong rasterizerHandle) { 300 Paint* obj = reinterpret_cast<Paint*>(objHandle); 301 SkAutoTUnref<SkRasterizer> rasterizer(GraphicsJNI::refNativeRasterizer(rasterizerHandle)); 302 return reinterpret_cast<jlong>(obj->setRasterizer(rasterizer)); 303 } 304 305 static jint getTextAlign(JNIEnv* env, jobject clazz, jlong objHandle) { 306 Paint* obj = reinterpret_cast<Paint*>(objHandle); 307 return static_cast<jint>(obj->getTextAlign()); 308 } 309 310 static void setTextAlign(JNIEnv* env, jobject clazz, jlong objHandle, jint alignHandle) { 311 Paint* obj = reinterpret_cast<Paint*>(objHandle); 312 Paint::Align align = static_cast<Paint::Align>(alignHandle); 313 obj->setTextAlign(align); 314 } 315 316 static jint setTextLocales(JNIEnv* env, jobject clazz, jlong objHandle, jstring locales) { 317 Paint* obj = reinterpret_cast<Paint*>(objHandle); 318 ScopedUtfChars localesChars(env, locales); 319 jint minikinLangListId = FontStyle::registerLanguageList(localesChars.c_str()); 320 obj->setMinikinLangListId(minikinLangListId); 321 return minikinLangListId; 322 } 323 324 static void setTextLocalesByMinikinLangListId(JNIEnv* env, jobject clazz, jlong objHandle, 325 jint minikinLangListId) { 326 Paint* obj = reinterpret_cast<Paint*>(objHandle); 327 obj->setMinikinLangListId(minikinLangListId); 328 } 329 330 static jboolean isElegantTextHeight(JNIEnv* env, jobject, jlong paintHandle) { 331 Paint* obj = reinterpret_cast<Paint*>(paintHandle); 332 return obj->getFontVariant() == VARIANT_ELEGANT; 333 } 334 335 static void setElegantTextHeight(JNIEnv* env, jobject, jlong paintHandle, jboolean aa) { 336 Paint* obj = reinterpret_cast<Paint*>(paintHandle); 337 obj->setFontVariant(aa ? VARIANT_ELEGANT : VARIANT_DEFAULT); 338 } 339 340 static jfloat getTextSize(JNIEnv* env, jobject, jlong paintHandle) { 341 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextSize()); 342 } 343 344 static void setTextSize(JNIEnv* env, jobject, jlong paintHandle, jfloat textSize) { 345 reinterpret_cast<Paint*>(paintHandle)->setTextSize(textSize); 346 } 347 348 static jfloat getTextScaleX(JNIEnv* env, jobject, jlong paintHandle) { 349 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextScaleX()); 350 } 351 352 static void setTextScaleX(JNIEnv* env, jobject, jlong paintHandle, jfloat scaleX) { 353 reinterpret_cast<Paint*>(paintHandle)->setTextScaleX(scaleX); 354 } 355 356 static jfloat getTextSkewX(JNIEnv* env, jobject, jlong paintHandle) { 357 return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getTextSkewX()); 358 } 359 360 static void setTextSkewX(JNIEnv* env, jobject, jlong paintHandle, jfloat skewX) { 361 reinterpret_cast<Paint*>(paintHandle)->setTextSkewX(skewX); 362 } 363 364 static jfloat getLetterSpacing(JNIEnv* env, jobject clazz, jlong paintHandle) { 365 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 366 return paint->getLetterSpacing(); 367 } 368 369 static void setLetterSpacing(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat letterSpacing) { 370 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 371 paint->setLetterSpacing(letterSpacing); 372 } 373 374 static void setFontFeatureSettings(JNIEnv* env, jobject clazz, jlong paintHandle, jstring settings) { 375 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 376 if (!settings) { 377 paint->setFontFeatureSettings(std::string()); 378 } else { 379 ScopedUtfChars settingsChars(env, settings); 380 paint->setFontFeatureSettings(std::string(settingsChars.c_str(), settingsChars.size())); 381 } 382 } 383 384 static jint getHyphenEdit(JNIEnv* env, jobject clazz, jlong paintHandle, jint hyphen) { 385 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 386 return paint->getHyphenEdit(); 387 } 388 389 static void setHyphenEdit(JNIEnv* env, jobject clazz, jlong paintHandle, jint hyphen) { 390 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 391 paint->setHyphenEdit((uint32_t)hyphen); 392 } 393 394 static SkScalar getMetricsInternal(jlong paintHandle, jlong typefaceHandle, 395 Paint::FontMetrics *metrics) { 396 const int kElegantTop = 2500; 397 const int kElegantBottom = -1000; 398 const int kElegantAscent = 1900; 399 const int kElegantDescent = -500; 400 const int kElegantLeading = 0; 401 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 402 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 403 typeface = TypefaceImpl_resolveDefault(typeface); 404 FakedFont baseFont = typeface->fFontCollection->baseFontFaked(typeface->fStyle); 405 float saveSkewX = paint->getTextSkewX(); 406 bool savefakeBold = paint->isFakeBoldText(); 407 MinikinFontSkia::populateSkPaint(paint, baseFont.font, baseFont.fakery); 408 SkScalar spacing = paint->getFontMetrics(metrics); 409 // The populateSkPaint call may have changed fake bold / text skew 410 // because we want to measure with those effects applied, so now 411 // restore the original settings. 412 paint->setTextSkewX(saveSkewX); 413 paint->setFakeBoldText(savefakeBold); 414 if (paint->getFontVariant() == VARIANT_ELEGANT) { 415 SkScalar size = paint->getTextSize(); 416 metrics->fTop = -size * kElegantTop / 2048; 417 metrics->fBottom = -size * kElegantBottom / 2048; 418 metrics->fAscent = -size * kElegantAscent / 2048; 419 metrics->fDescent = -size * kElegantDescent / 2048; 420 metrics->fLeading = size * kElegantLeading / 2048; 421 spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading; 422 } 423 return spacing; 424 } 425 426 static jfloat ascent(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle) { 427 Paint::FontMetrics metrics; 428 getMetricsInternal(paintHandle, typefaceHandle, &metrics); 429 return SkScalarToFloat(metrics.fAscent); 430 } 431 432 static jfloat descent(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle) { 433 Paint::FontMetrics metrics; 434 getMetricsInternal(paintHandle, typefaceHandle, &metrics); 435 return SkScalarToFloat(metrics.fDescent); 436 } 437 438 static jfloat getFontMetrics(JNIEnv* env, jobject, jlong paintHandle, 439 jlong typefaceHandle, jobject metricsObj) { 440 Paint::FontMetrics metrics; 441 SkScalar spacing = getMetricsInternal(paintHandle, typefaceHandle, &metrics); 442 443 if (metricsObj) { 444 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetrics_class)); 445 env->SetFloatField(metricsObj, gFontMetrics_fieldID.top, SkScalarToFloat(metrics.fTop)); 446 env->SetFloatField(metricsObj, gFontMetrics_fieldID.ascent, SkScalarToFloat(metrics.fAscent)); 447 env->SetFloatField(metricsObj, gFontMetrics_fieldID.descent, SkScalarToFloat(metrics.fDescent)); 448 env->SetFloatField(metricsObj, gFontMetrics_fieldID.bottom, SkScalarToFloat(metrics.fBottom)); 449 env->SetFloatField(metricsObj, gFontMetrics_fieldID.leading, SkScalarToFloat(metrics.fLeading)); 450 } 451 return SkScalarToFloat(spacing); 452 } 453 454 static jint getFontMetricsInt(JNIEnv* env, jobject, jlong paintHandle, 455 jlong typefaceHandle, jobject metricsObj) { 456 Paint::FontMetrics metrics; 457 458 getMetricsInternal(paintHandle, typefaceHandle, &metrics); 459 int ascent = SkScalarRoundToInt(metrics.fAscent); 460 int descent = SkScalarRoundToInt(metrics.fDescent); 461 int leading = SkScalarRoundToInt(metrics.fLeading); 462 463 if (metricsObj) { 464 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetricsInt_class)); 465 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.top, SkScalarFloorToInt(metrics.fTop)); 466 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.ascent, ascent); 467 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.descent, descent); 468 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.bottom, SkScalarCeilToInt(metrics.fBottom)); 469 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.leading, leading); 470 } 471 return descent - ascent + leading; 472 } 473 474 static jfloat doTextAdvances(JNIEnv *env, Paint *paint, TypefaceImpl* typeface, 475 const jchar *text, jint start, jint count, jint contextCount, jint bidiFlags, 476 jfloatArray advances, jint advancesIndex) { 477 NPE_CHECK_RETURN_ZERO(env, text); 478 479 if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { 480 doThrowAIOOBE(env); 481 return 0; 482 } 483 if (count == 0) { 484 return 0; 485 } 486 if (advances) { 487 size_t advancesLength = env->GetArrayLength(advances); 488 if ((size_t)(count + advancesIndex) > advancesLength) { 489 doThrowAIOOBE(env); 490 return 0; 491 } 492 } 493 494 Layout layout; 495 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, start, count, 496 contextCount); 497 if (advances != NULL) { 498 std::unique_ptr<jfloat> advancesArray(new jfloat[count]); 499 layout.getAdvances(advancesArray.get()); 500 env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray.get()); 501 } 502 return layout.getAdvance(); 503 } 504 505 static jfloat getTextAdvances___CIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 506 jlong typefaceHandle, 507 jcharArray text, jint index, jint count, jint contextIndex, jint contextCount, 508 jint bidiFlags, jfloatArray advances, jint advancesIndex) { 509 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 510 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 511 jchar* textArray = env->GetCharArrayElements(text, NULL); 512 jfloat result = doTextAdvances(env, paint, typeface, textArray + contextIndex, 513 index - contextIndex, count, contextCount, bidiFlags, advances, advancesIndex); 514 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 515 return result; 516 } 517 518 static jfloat getTextAdvances__StringIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 519 jlong typefaceHandle, 520 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint bidiFlags, 521 jfloatArray advances, jint advancesIndex) { 522 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 523 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 524 const jchar* textArray = env->GetStringChars(text, NULL); 525 jfloat result = doTextAdvances(env, paint, typeface, textArray + contextStart, 526 start - contextStart, end - start, contextEnd - contextStart, bidiFlags, 527 advances, advancesIndex); 528 env->ReleaseStringChars(text, textArray); 529 return result; 530 } 531 532 static jint doTextRunCursor(JNIEnv *env, Paint* paint, const jchar *text, jint start, 533 jint count, jint flags, jint offset, jint opt) { 534 GraphemeBreak::MoveOpt moveOpt = GraphemeBreak::MoveOpt(opt); 535 size_t result = GraphemeBreak::getTextRunCursor(text, start, count, offset, moveOpt); 536 return static_cast<jint>(result); 537 } 538 539 static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text, 540 jint contextStart, jint contextCount, jint dir, jint offset, jint cursorOpt) { 541 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 542 jchar* textArray = env->GetCharArrayElements(text, NULL); 543 jint result = doTextRunCursor(env, paint, textArray, contextStart, contextCount, dir, 544 offset, cursorOpt); 545 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 546 return result; 547 } 548 549 static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle, jstring text, 550 jint contextStart, jint contextEnd, jint dir, jint offset, jint cursorOpt) { 551 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 552 const jchar* textArray = env->GetStringChars(text, NULL); 553 jint result = doTextRunCursor(env, paint, textArray, contextStart, 554 contextEnd - contextStart, dir, offset, cursorOpt); 555 env->ReleaseStringChars(text, textArray); 556 return result; 557 } 558 559 class GetTextFunctor { 560 public: 561 GetTextFunctor(const Layout& layout, SkPath* path, jfloat x, jfloat y, Paint* paint, 562 uint16_t* glyphs, SkPoint* pos) 563 : layout(layout), path(path), x(x), y(y), paint(paint), glyphs(glyphs), pos(pos) { 564 } 565 566 void operator()(size_t start, size_t end) { 567 for (size_t i = start; i < end; i++) { 568 glyphs[i] = layout.getGlyphId(i); 569 pos[i].fX = x + layout.getX(i); 570 pos[i].fY = y + layout.getY(i); 571 } 572 if (start == 0) { 573 paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, path); 574 } else { 575 paint->getPosTextPath(glyphs + start, (end - start) << 1, pos + start, &tmpPath); 576 path->addPath(tmpPath); 577 } 578 } 579 private: 580 const Layout& layout; 581 SkPath* path; 582 jfloat x; 583 jfloat y; 584 Paint* paint; 585 uint16_t* glyphs; 586 SkPoint* pos; 587 SkPath tmpPath; 588 }; 589 590 static void getTextPath(JNIEnv* env, Paint* paint, TypefaceImpl* typeface, const jchar* text, 591 jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) { 592 Layout layout; 593 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, 0, count, count); 594 size_t nGlyphs = layout.nGlyphs(); 595 uint16_t* glyphs = new uint16_t[nGlyphs]; 596 SkPoint* pos = new SkPoint[nGlyphs]; 597 598 x += MinikinUtils::xOffsetForTextAlign(paint, layout); 599 Paint::Align align = paint->getTextAlign(); 600 paint->setTextAlign(Paint::kLeft_Align); 601 paint->setTextEncoding(Paint::kGlyphID_TextEncoding); 602 GetTextFunctor f(layout, path, x, y, paint, glyphs, pos); 603 MinikinUtils::forFontRun(layout, paint, f); 604 paint->setTextAlign(align); 605 delete[] glyphs; 606 delete[] pos; 607 } 608 609 static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, 610 jlong typefaceHandle, jint bidiFlags, 611 jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) { 612 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 613 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 614 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 615 const jchar* textArray = env->GetCharArrayElements(text, NULL); 616 getTextPath(env, paint, typeface, textArray + index, count, bidiFlags, x, y, path); 617 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 618 } 619 620 static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, 621 jlong typefaceHandle, jint bidiFlags, 622 jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) { 623 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 624 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 625 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 626 const jchar* textArray = env->GetStringChars(text, NULL); 627 getTextPath(env, paint, typeface, textArray + start, end - start, bidiFlags, x, y, path); 628 env->ReleaseStringChars(text, textArray); 629 } 630 631 static void setShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat radius, 632 jfloat dx, jfloat dy, jint color) { 633 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 634 if (radius <= 0) { 635 paint->setLooper(NULL); 636 } 637 else { 638 SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius); 639 paint->setLooper(SkBlurDrawLooper::Create((SkColor)color, sigma, dx, dy))->unref(); 640 } 641 } 642 643 static jboolean hasShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle) { 644 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 645 return paint->getLooper() && paint->getLooper()->asABlurShadow(NULL); 646 } 647 648 static int breakText(JNIEnv* env, const Paint& paint, TypefaceImpl* typeface, const jchar text[], 649 int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured, 650 const bool forwardScan) { 651 size_t measuredCount = 0; 652 float measured = 0; 653 654 Layout layout; 655 MinikinUtils::doLayout(&layout, &paint, bidiFlags, typeface, text, 0, count, count); 656 float* advances = new float[count]; 657 layout.getAdvances(advances); 658 659 for (int i = 0; i < count; i++) { 660 // traverse in the given direction 661 int index = forwardScan ? i : (count - i - 1); 662 float width = advances[index]; 663 if (measured + width > maxWidth) { 664 break; 665 } 666 // properly handle clusters when scanning backwards 667 if (forwardScan || width != 0.0f) { 668 measuredCount = i + 1; 669 } 670 measured += width; 671 } 672 delete[] advances; 673 674 if (jmeasured && env->GetArrayLength(jmeasured) > 0) { 675 AutoJavaFloatArray autoMeasured(env, jmeasured, 1); 676 jfloat* array = autoMeasured.ptr(); 677 array[0] = measured; 678 } 679 return measuredCount; 680 } 681 682 static jint breakTextC(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jcharArray jtext, 683 jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 684 NPE_CHECK_RETURN_ZERO(env, jtext); 685 686 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 687 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 688 689 bool forwardTextDirection; 690 if (count < 0) { 691 forwardTextDirection = false; 692 count = -count; 693 } 694 else { 695 forwardTextDirection = true; 696 } 697 698 if ((index < 0) || (index + count > env->GetArrayLength(jtext))) { 699 doThrowAIOOBE(env); 700 return 0; 701 } 702 703 const jchar* text = env->GetCharArrayElements(jtext, NULL); 704 count = breakText(env, *paint, typeface, text + index, count, maxWidth, 705 bidiFlags, jmeasuredWidth, forwardTextDirection); 706 env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text), 707 JNI_ABORT); 708 return count; 709 } 710 711 static jint breakTextS(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jstring jtext, 712 jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 713 NPE_CHECK_RETURN_ZERO(env, jtext); 714 715 Paint* paint = reinterpret_cast<Paint*>(paintHandle); 716 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 717 718 int count = env->GetStringLength(jtext); 719 const jchar* text = env->GetStringChars(jtext, NULL); 720 count = breakText(env, *paint, typeface, text, count, maxWidth, bidiFlags, jmeasuredWidth, forwards); 721 env->ReleaseStringChars(jtext, text); 722 return count; 723 } 724 725 static void doTextBounds(JNIEnv* env, const jchar* text, int count, jobject bounds, 726 const Paint& paint, TypefaceImpl* typeface, jint bidiFlags) { 727 SkRect r; 728 SkIRect ir; 729 730 Layout layout; 731 MinikinUtils::doLayout(&layout, &paint, bidiFlags, typeface, text, 0, count, count); 732 MinikinRect rect; 733 layout.getBounds(&rect); 734 r.fLeft = rect.mLeft; 735 r.fTop = rect.mTop; 736 r.fRight = rect.mRight; 737 r.fBottom = rect.mBottom; 738 r.roundOut(&ir); 739 GraphicsJNI::irect_to_jrect(ir, env, bounds); 740 } 741 742 static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle, 743 jstring text, jint start, jint end, jint bidiFlags, jobject bounds) { 744 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 745 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 746 const jchar* textArray = env->GetStringChars(text, NULL); 747 doTextBounds(env, textArray + start, end - start, bounds, *paint, typeface, bidiFlags); 748 env->ReleaseStringChars(text, textArray); 749 } 750 751 static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, jlong typefaceHandle, 752 jcharArray text, jint index, jint count, jint bidiFlags, jobject bounds) { 753 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 754 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 755 const jchar* textArray = env->GetCharArrayElements(text, NULL); 756 doTextBounds(env, textArray + index, count, bounds, *paint, typeface, bidiFlags); 757 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 758 JNI_ABORT); 759 } 760 761 static jboolean layoutContainsNotdef(const Layout& layout) { 762 for (size_t i = 0; i < layout.nGlyphs(); i++) { 763 if (layout.getGlyphId(i) == 0) { 764 return true; 765 } 766 } 767 return false; 768 } 769 770 static jboolean hasGlyph(JNIEnv *env, jclass, jlong paintHandle, jlong typefaceHandle, 771 jint bidiFlags, jstring string) { 772 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 773 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 774 ScopedStringChars str(env, string); 775 776 /* Start by rejecting unsupported base code point and variation selector pairs. */ 777 size_t nChars = 0; 778 const uint32_t kStartOfString = 0xFFFFFFFF; 779 uint32_t prevCp = kStartOfString; 780 for (size_t i = 0; i < str.size(); i++) { 781 jchar cu = str[i]; 782 uint32_t cp = cu; 783 if (U16_IS_TRAIL(cu)) { 784 // invalid UTF-16, unpaired trailing surrogate 785 return false; 786 } else if (U16_IS_LEAD(cu)) { 787 if (i + 1 == str.size()) { 788 // invalid UTF-16, unpaired leading surrogate at end of string 789 return false; 790 } 791 i++; 792 jchar cu2 = str[i]; 793 if (!U16_IS_TRAIL(cu2)) { 794 // invalid UTF-16, unpaired leading surrogate 795 return false; 796 } 797 cp = U16_GET_SUPPLEMENTARY(cu, cu2); 798 } 799 800 if (prevCp != kStartOfString && 801 ((0xFE00 <= cp && cp <= 0xFE0F) || (0xE0100 <= cp && cp <= 0xE01EF)) && 802 !MinikinUtils::hasVariationSelector(typeface, prevCp, cp)) { 803 // No font has a glyph for the code point and variation selector pair. 804 return false; 805 } 806 nChars++; 807 prevCp = cp; 808 } 809 Layout layout; 810 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, str.get(), 0, str.size(), 811 str.size()); 812 size_t nGlyphs = layout.nGlyphs(); 813 if (nGlyphs != 1 && nChars > 1) { 814 // multiple-character input, and was not a ligature 815 // TODO: handle ZWJ/ZWNJ characters specially so we can detect certain ligatures 816 // in joining scripts, such as Arabic and Mongolian. 817 return false; 818 } 819 return nGlyphs > 0 && !layoutContainsNotdef(layout); 820 } 821 822 static jfloat doRunAdvance(const Paint* paint, TypefaceImpl* typeface, const jchar buf[], 823 jint start, jint count, jint bufSize, jboolean isRtl, jint offset) { 824 Layout layout; 825 int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; 826 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, buf, start, count, bufSize); 827 return getRunAdvance(layout, buf, start, count, offset); 828 } 829 830 static jfloat getRunAdvance___CIIIIZI_F(JNIEnv *env, jclass, jlong paintHandle, 831 jlong typefaceHandle, jcharArray text, jint start, jint end, jint contextStart, 832 jint contextEnd, jboolean isRtl, jint offset) { 833 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 834 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 835 jchar* textArray = (jchar*) env->GetPrimitiveArrayCritical(text, NULL); 836 jfloat result = doRunAdvance(paint, typeface, textArray + contextStart, 837 start - contextStart, end - start, contextEnd - contextStart, isRtl, 838 offset - contextStart); 839 env->ReleasePrimitiveArrayCritical(text, textArray, JNI_ABORT); 840 return result; 841 } 842 843 static jint doOffsetForAdvance(const Paint* paint, TypefaceImpl* typeface, const jchar buf[], 844 jint start, jint count, jint bufSize, jboolean isRtl, jfloat advance) { 845 Layout layout; 846 int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR; 847 MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, buf, start, count, bufSize); 848 return getOffsetForAdvance(layout, buf, start, count, advance); 849 } 850 static jint getOffsetForAdvance___CIIIIZF_I(JNIEnv *env, jclass, jlong paintHandle, 851 jlong typefaceHandle, jcharArray text, jint start, jint end, jint contextStart, 852 jint contextEnd, jboolean isRtl, jfloat advance) { 853 const Paint* paint = reinterpret_cast<Paint*>(paintHandle); 854 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 855 jchar* textArray = (jchar*) env->GetPrimitiveArrayCritical(text, NULL); 856 jint result = doOffsetForAdvance(paint, typeface, textArray + contextStart, 857 start - contextStart, end - start, contextEnd - contextStart, isRtl, advance); 858 result += contextStart; 859 env->ReleasePrimitiveArrayCritical(text, textArray, JNI_ABORT); 860 return result; 861 } 862 863}; // namespace PaintGlue 864 865static const JNINativeMethod methods[] = { 866 {"nFinalizer", "(J)V", (void*) PaintGlue::finalizer}, 867 {"nInit","()J", (void*) PaintGlue::init}, 868 {"nInitWithPaint","(J)J", (void*) PaintGlue::initWithPaint}, 869 870 {"nReset","!(J)V", (void*) PaintGlue::reset}, 871 {"nSet","!(JJ)V", (void*) PaintGlue::assign}, 872 {"nGetFlags","!(J)I", (void*) PaintGlue::getFlags}, 873 {"nSetFlags","!(JI)V", (void*) PaintGlue::setFlags}, 874 {"nGetHinting","!(J)I", (void*) PaintGlue::getHinting}, 875 {"nSetHinting","!(JI)V", (void*) PaintGlue::setHinting}, 876 {"nSetAntiAlias","!(JZ)V", (void*) PaintGlue::setAntiAlias}, 877 {"nSetSubpixelText","!(JZ)V", (void*) PaintGlue::setSubpixelText}, 878 {"nSetLinearText","!(JZ)V", (void*) PaintGlue::setLinearText}, 879 {"nSetUnderlineText","!(JZ)V", (void*) PaintGlue::setUnderlineText}, 880 {"nSetStrikeThruText","!(JZ)V", (void*) PaintGlue::setStrikeThruText}, 881 {"nSetFakeBoldText","!(JZ)V", (void*) PaintGlue::setFakeBoldText}, 882 {"nSetFilterBitmap","!(JZ)V", (void*) PaintGlue::setFilterBitmap}, 883 {"nSetDither","!(JZ)V", (void*) PaintGlue::setDither}, 884 {"nGetStyle","!(J)I", (void*) PaintGlue::getStyle}, 885 {"nSetStyle","!(JI)V", (void*) PaintGlue::setStyle}, 886 {"nGetColor","!(J)I", (void*) PaintGlue::getColor}, 887 {"nSetColor","!(JI)V", (void*) PaintGlue::setColor}, 888 {"nGetAlpha","!(J)I", (void*) PaintGlue::getAlpha}, 889 {"nSetAlpha","!(JI)V", (void*) PaintGlue::setAlpha}, 890 {"nGetStrokeWidth","!(J)F", (void*) PaintGlue::getStrokeWidth}, 891 {"nSetStrokeWidth","!(JF)V", (void*) PaintGlue::setStrokeWidth}, 892 {"nGetStrokeMiter","!(J)F", (void*) PaintGlue::getStrokeMiter}, 893 {"nSetStrokeMiter","!(JF)V", (void*) PaintGlue::setStrokeMiter}, 894 {"nGetStrokeCap","!(J)I", (void*) PaintGlue::getStrokeCap}, 895 {"nSetStrokeCap","!(JI)V", (void*) PaintGlue::setStrokeCap}, 896 {"nGetStrokeJoin","!(J)I", (void*) PaintGlue::getStrokeJoin}, 897 {"nSetStrokeJoin","!(JI)V", (void*) PaintGlue::setStrokeJoin}, 898 {"nGetFillPath","!(JJJ)Z", (void*) PaintGlue::getFillPath}, 899 {"nSetShader","!(JJ)J", (void*) PaintGlue::setShader}, 900 {"nSetColorFilter","!(JJ)J", (void*) PaintGlue::setColorFilter}, 901 {"nSetXfermode","!(JJ)J", (void*) PaintGlue::setXfermode}, 902 {"nSetPathEffect","!(JJ)J", (void*) PaintGlue::setPathEffect}, 903 {"nSetMaskFilter","!(JJ)J", (void*) PaintGlue::setMaskFilter}, 904 {"nSetTypeface","!(JJ)J", (void*) PaintGlue::setTypeface}, 905 {"nSetRasterizer","!(JJ)J", (void*) PaintGlue::setRasterizer}, 906 {"nGetTextAlign","!(J)I", (void*) PaintGlue::getTextAlign}, 907 {"nSetTextAlign","!(JI)V", (void*) PaintGlue::setTextAlign}, 908 {"nSetTextLocales","!(JLjava/lang/String;)I", (void*) PaintGlue::setTextLocales}, 909 {"nSetTextLocalesByMinikinLangListId","!(JI)V", 910 (void*) PaintGlue::setTextLocalesByMinikinLangListId}, 911 {"nIsElegantTextHeight","!(J)Z", (void*) PaintGlue::isElegantTextHeight}, 912 {"nSetElegantTextHeight","!(JZ)V", (void*) PaintGlue::setElegantTextHeight}, 913 {"nGetTextSize","!(J)F", (void*) PaintGlue::getTextSize}, 914 {"nSetTextSize","!(JF)V", (void*) PaintGlue::setTextSize}, 915 {"nGetTextScaleX","!(J)F", (void*) PaintGlue::getTextScaleX}, 916 {"nSetTextScaleX","!(JF)V", (void*) PaintGlue::setTextScaleX}, 917 {"nGetTextSkewX","!(J)F", (void*) PaintGlue::getTextSkewX}, 918 {"nSetTextSkewX","!(JF)V", (void*) PaintGlue::setTextSkewX}, 919 {"nGetLetterSpacing","!(J)F", (void*) PaintGlue::getLetterSpacing}, 920 {"nSetLetterSpacing","!(JF)V", (void*) PaintGlue::setLetterSpacing}, 921 {"nSetFontFeatureSettings","(JLjava/lang/String;)V", 922 (void*) PaintGlue::setFontFeatureSettings}, 923 {"nGetHyphenEdit", "!(J)I", (void*) PaintGlue::getHyphenEdit}, 924 {"nSetHyphenEdit", "!(JI)V", (void*) PaintGlue::setHyphenEdit}, 925 {"nAscent","!(JJ)F", (void*) PaintGlue::ascent}, 926 {"nDescent","!(JJ)F", (void*) PaintGlue::descent}, 927 928 {"nGetFontMetrics", "!(JJLandroid/graphics/Paint$FontMetrics;)F", 929 (void*)PaintGlue::getFontMetrics}, 930 {"nGetFontMetricsInt", "!(JJLandroid/graphics/Paint$FontMetricsInt;)I", 931 (void*)PaintGlue::getFontMetricsInt}, 932 933 {"nBreakText","(JJ[CIIFI[F)I", (void*) PaintGlue::breakTextC}, 934 {"nBreakText","(JJLjava/lang/String;ZFI[F)I", (void*) PaintGlue::breakTextS}, 935 {"nGetTextAdvances","(JJ[CIIIII[FI)F", 936 (void*) PaintGlue::getTextAdvances___CIIIII_FI}, 937 {"nGetTextAdvances","(JJLjava/lang/String;IIIII[FI)F", 938 (void*) PaintGlue::getTextAdvances__StringIIIII_FI}, 939 940 {"nGetTextRunCursor", "(J[CIIIII)I", (void*) PaintGlue::getTextRunCursor___C}, 941 {"nGetTextRunCursor", "(JLjava/lang/String;IIIII)I", 942 (void*) PaintGlue::getTextRunCursor__String}, 943 {"nGetTextPath", "(JJI[CIIFFJ)V", (void*) PaintGlue::getTextPath___C}, 944 {"nGetTextPath", "(JJILjava/lang/String;IIFFJ)V", (void*) PaintGlue::getTextPath__String}, 945 {"nGetStringBounds", "(JJLjava/lang/String;IIILandroid/graphics/Rect;)V", 946 (void*) PaintGlue::getStringBounds }, 947 {"nGetCharArrayBounds", "(JJ[CIIILandroid/graphics/Rect;)V", 948 (void*) PaintGlue::getCharArrayBounds }, 949 {"nHasGlyph", "(JJILjava/lang/String;)Z", (void*) PaintGlue::hasGlyph }, 950 {"nGetRunAdvance", "(JJ[CIIIIZI)F", (void*) PaintGlue::getRunAdvance___CIIIIZI_F}, 951 {"nGetOffsetForAdvance", "(JJ[CIIIIZF)I", 952 (void*) PaintGlue::getOffsetForAdvance___CIIIIZF_I}, 953 954 {"nSetShadowLayer", "!(JFFFI)V", (void*)PaintGlue::setShadowLayer}, 955 {"nHasShadowLayer", "!(J)Z", (void*)PaintGlue::hasShadowLayer} 956}; 957 958int register_android_graphics_Paint(JNIEnv* env) { 959 gFontMetrics_class = FindClassOrDie(env, "android/graphics/Paint$FontMetrics"); 960 gFontMetrics_class = MakeGlobalRefOrDie(env, gFontMetrics_class); 961 962 gFontMetrics_fieldID.top = GetFieldIDOrDie(env, gFontMetrics_class, "top", "F"); 963 gFontMetrics_fieldID.ascent = GetFieldIDOrDie(env, gFontMetrics_class, "ascent", "F"); 964 gFontMetrics_fieldID.descent = GetFieldIDOrDie(env, gFontMetrics_class, "descent", "F"); 965 gFontMetrics_fieldID.bottom = GetFieldIDOrDie(env, gFontMetrics_class, "bottom", "F"); 966 gFontMetrics_fieldID.leading = GetFieldIDOrDie(env, gFontMetrics_class, "leading", "F"); 967 968 gFontMetricsInt_class = FindClassOrDie(env, "android/graphics/Paint$FontMetricsInt"); 969 gFontMetricsInt_class = MakeGlobalRefOrDie(env, gFontMetricsInt_class); 970 971 gFontMetricsInt_fieldID.top = GetFieldIDOrDie(env, gFontMetricsInt_class, "top", "I"); 972 gFontMetricsInt_fieldID.ascent = GetFieldIDOrDie(env, gFontMetricsInt_class, "ascent", "I"); 973 gFontMetricsInt_fieldID.descent = GetFieldIDOrDie(env, gFontMetricsInt_class, "descent", "I"); 974 gFontMetricsInt_fieldID.bottom = GetFieldIDOrDie(env, gFontMetricsInt_class, "bottom", "I"); 975 gFontMetricsInt_fieldID.leading = GetFieldIDOrDie(env, gFontMetricsInt_class, "leading", "I"); 976 977 return RegisterMethodsOrDie(env, "android/graphics/Paint", methods, NELEM(methods)); 978} 979 980} 981