Paint.cpp revision 49f0db34811bc374eb6af0a6ba233325ff6f14cc
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 <android_runtime/AndroidRuntime.h> 25#include <ScopedUtfChars.h> 26 27#include "SkBlurDrawLooper.h" 28#include "SkColorFilter.h" 29#include "SkMaskFilter.h" 30#include "SkRasterizer.h" 31#include "SkShader.h" 32#include "SkTypeface.h" 33#include "SkXfermode.h" 34#include "unicode/uloc.h" 35#include "unicode/ushape.h" 36#include "utils/Blur.h" 37#include "TextLayout.h" 38 39#ifdef USE_MINIKIN 40#include <minikin/Layout.h> 41#include "MinikinSkia.h" 42#include "MinikinUtils.h" 43#endif 44 45// temporary for debugging 46#include <Caches.h> 47#include <utils/Log.h> 48 49namespace android { 50 51struct JMetricsID { 52 jfieldID top; 53 jfieldID ascent; 54 jfieldID descent; 55 jfieldID bottom; 56 jfieldID leading; 57}; 58 59static jclass gFontMetrics_class; 60static JMetricsID gFontMetrics_fieldID; 61 62static jclass gFontMetricsInt_class; 63static JMetricsID gFontMetricsInt_fieldID; 64 65static void defaultSettingsForAndroid(SkPaint* paint) { 66 // GlyphID encoding is required because we are using Harfbuzz shaping 67 paint->setTextEncoding(SkPaint::kGlyphID_TextEncoding); 68 69 SkPaintOptionsAndroid paintOpts = paint->getPaintOptionsAndroid(); 70 paintOpts.setUseFontFallbacks(true); 71 paint->setPaintOptionsAndroid(paintOpts); 72} 73 74class SkPaintGlue { 75public: 76 enum MoveOpt { 77 AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT 78 }; 79 80 static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) { 81 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 82 delete obj; 83 } 84 85 static jlong init(JNIEnv* env, jobject clazz) { 86 SkPaint* obj = new SkPaint(); 87 defaultSettingsForAndroid(obj); 88 return reinterpret_cast<jlong>(obj); 89 } 90 91 static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) { 92 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 93 SkPaint* obj = new SkPaint(*paint); 94 return reinterpret_cast<jlong>(obj); 95 } 96 97 static void reset(JNIEnv* env, jobject clazz, jlong objHandle) { 98 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 99 obj->reset(); 100 defaultSettingsForAndroid(obj); 101 } 102 103 static void assign(JNIEnv* env, jobject clazz, jlong dstPaintHandle, jlong srcPaintHandle) { 104 SkPaint* dst = reinterpret_cast<SkPaint*>(dstPaintHandle); 105 const SkPaint* src = reinterpret_cast<SkPaint*>(srcPaintHandle); 106 *dst = *src; 107 } 108 109 // Equivalent to the Java Paint's FILTER_BITMAP_FLAG. 110 static const uint32_t sFilterBitmapFlag = 0x02; 111 112 static jint getFlags(JNIEnv* env, jobject paint) { 113 NPE_CHECK_RETURN_ZERO(env, paint); 114 SkPaint* nativePaint = GraphicsJNI::getNativePaint(env, paint); 115 uint32_t result = nativePaint->getFlags(); 116 result &= ~sFilterBitmapFlag; // Filtering no longer stored in this bit. Mask away. 117 if (nativePaint->getFilterLevel() != SkPaint::kNone_FilterLevel) { 118 result |= sFilterBitmapFlag; 119 } 120 return static_cast<jint>(result); 121 } 122 123 static void setFlags(JNIEnv* env, jobject paint, jint flags) { 124 NPE_CHECK_RETURN_VOID(env, paint); 125 SkPaint* nativePaint = GraphicsJNI::getNativePaint(env, paint); 126 // Instead of modifying 0x02, change the filter level. 127 nativePaint->setFilterLevel(flags & sFilterBitmapFlag 128 ? SkPaint::kLow_FilterLevel 129 : SkPaint::kNone_FilterLevel); 130 // Don't pass through filter flag, which is no longer stored in paint's flags. 131 flags &= ~sFilterBitmapFlag; 132 // Use the existing value for 0x02. 133 const uint32_t existing0x02Flag = nativePaint->getFlags() & sFilterBitmapFlag; 134 flags |= existing0x02Flag; 135 nativePaint->setFlags(flags); 136 } 137 138 static jint getHinting(JNIEnv* env, jobject paint) { 139 NPE_CHECK_RETURN_ZERO(env, paint); 140 return GraphicsJNI::getNativePaint(env, paint)->getHinting() 141 == SkPaint::kNo_Hinting ? 0 : 1; 142 } 143 144 static void setHinting(JNIEnv* env, jobject paint, jint mode) { 145 NPE_CHECK_RETURN_VOID(env, paint); 146 GraphicsJNI::getNativePaint(env, paint)->setHinting( 147 mode == 0 ? SkPaint::kNo_Hinting : SkPaint::kNormal_Hinting); 148 } 149 150 static void setAntiAlias(JNIEnv* env, jobject paint, jboolean aa) { 151 NPE_CHECK_RETURN_VOID(env, paint); 152 GraphicsJNI::getNativePaint(env, paint)->setAntiAlias(aa); 153 } 154 155 static void setLinearText(JNIEnv* env, jobject paint, jboolean linearText) { 156 NPE_CHECK_RETURN_VOID(env, paint); 157 GraphicsJNI::getNativePaint(env, paint)->setLinearText(linearText); 158 } 159 160 static void setSubpixelText(JNIEnv* env, jobject paint, jboolean subpixelText) { 161 NPE_CHECK_RETURN_VOID(env, paint); 162 GraphicsJNI::getNativePaint(env, paint)->setSubpixelText(subpixelText); 163 } 164 165 static void setUnderlineText(JNIEnv* env, jobject paint, jboolean underlineText) { 166 NPE_CHECK_RETURN_VOID(env, paint); 167 GraphicsJNI::getNativePaint(env, paint)->setUnderlineText(underlineText); 168 } 169 170 static void setStrikeThruText(JNIEnv* env, jobject paint, jboolean strikeThruText) { 171 NPE_CHECK_RETURN_VOID(env, paint); 172 GraphicsJNI::getNativePaint(env, paint)->setStrikeThruText(strikeThruText); 173 } 174 175 static void setFakeBoldText(JNIEnv* env, jobject paint, jboolean fakeBoldText) { 176 NPE_CHECK_RETURN_VOID(env, paint); 177 GraphicsJNI::getNativePaint(env, paint)->setFakeBoldText(fakeBoldText); 178 } 179 180 static void setFilterBitmap(JNIEnv* env, jobject paint, jboolean filterBitmap) { 181 NPE_CHECK_RETURN_VOID(env, paint); 182 GraphicsJNI::getNativePaint(env, paint)->setFilterLevel( 183 filterBitmap ? SkPaint::kLow_FilterLevel : SkPaint::kNone_FilterLevel); 184 } 185 186 static void setDither(JNIEnv* env, jobject paint, jboolean dither) { 187 NPE_CHECK_RETURN_VOID(env, paint); 188 GraphicsJNI::getNativePaint(env, paint)->setDither(dither); 189 } 190 191 static jint getStyle(JNIEnv* env, jobject clazz,jlong objHandle) { 192 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 193 return static_cast<jint>(obj->getStyle()); 194 } 195 196 static void setStyle(JNIEnv* env, jobject clazz, jlong objHandle, jint styleHandle) { 197 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 198 SkPaint::Style style = static_cast<SkPaint::Style>(styleHandle); 199 obj->setStyle(style); 200 } 201 202 static jint getColor(JNIEnv* env, jobject paint) { 203 NPE_CHECK_RETURN_ZERO(env, paint); 204 int color; 205 color = GraphicsJNI::getNativePaint(env, paint)->getColor(); 206 return static_cast<jint>(color); 207 } 208 209 static jint getAlpha(JNIEnv* env, jobject paint) { 210 NPE_CHECK_RETURN_ZERO(env, paint); 211 int alpha; 212 alpha = GraphicsJNI::getNativePaint(env, paint)->getAlpha(); 213 return static_cast<jint>(alpha); 214 } 215 216 static void setColor(JNIEnv* env, jobject paint, jint color) { 217 NPE_CHECK_RETURN_VOID(env, paint); 218 GraphicsJNI::getNativePaint(env, paint)->setColor(color); 219 } 220 221 static void setAlpha(JNIEnv* env, jobject paint, jint a) { 222 NPE_CHECK_RETURN_VOID(env, paint); 223 GraphicsJNI::getNativePaint(env, paint)->setAlpha(a); 224 } 225 226 static jfloat getStrokeWidth(JNIEnv* env, jobject paint) { 227 NPE_CHECK_RETURN_ZERO(env, paint); 228 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getStrokeWidth()); 229 } 230 231 static void setStrokeWidth(JNIEnv* env, jobject paint, jfloat width) { 232 NPE_CHECK_RETURN_VOID(env, paint); 233 GraphicsJNI::getNativePaint(env, paint)->setStrokeWidth(width); 234 } 235 236 static jfloat getStrokeMiter(JNIEnv* env, jobject paint) { 237 NPE_CHECK_RETURN_ZERO(env, paint); 238 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getStrokeMiter()); 239 } 240 241 static void setStrokeMiter(JNIEnv* env, jobject paint, jfloat miter) { 242 NPE_CHECK_RETURN_VOID(env, paint); 243 GraphicsJNI::getNativePaint(env, paint)->setStrokeMiter(miter); 244 } 245 246 static jint getStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle) { 247 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 248 return static_cast<jint>(obj->getStrokeCap()); 249 } 250 251 static void setStrokeCap(JNIEnv* env, jobject clazz, jlong objHandle, jint capHandle) { 252 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 253 SkPaint::Cap cap = static_cast<SkPaint::Cap>(capHandle); 254 obj->setStrokeCap(cap); 255 } 256 257 static jint getStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle) { 258 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 259 return static_cast<jint>(obj->getStrokeJoin()); 260 } 261 262 static void setStrokeJoin(JNIEnv* env, jobject clazz, jlong objHandle, jint joinHandle) { 263 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 264 SkPaint::Join join = (SkPaint::Join) joinHandle; 265 obj->setStrokeJoin(join); 266 } 267 268 static jboolean getFillPath(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jlong dstHandle) { 269 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 270 SkPath* src = reinterpret_cast<SkPath*>(srcHandle); 271 SkPath* dst = reinterpret_cast<SkPath*>(dstHandle); 272 return obj->getFillPath(*src, dst) ? JNI_TRUE : JNI_FALSE; 273 } 274 275 static jlong setShader(JNIEnv* env, jobject clazz, jlong objHandle, jlong shaderHandle) { 276 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 277 SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle); 278 return reinterpret_cast<jlong>(obj->setShader(shader)); 279 } 280 281 static jlong setColorFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong filterHandle) { 282 SkPaint* obj = reinterpret_cast<SkPaint *>(objHandle); 283 SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(filterHandle); 284 return reinterpret_cast<jlong>(obj->setColorFilter(filter)); 285 } 286 287 static jlong setXfermode(JNIEnv* env, jobject clazz, jlong objHandle, jlong xfermodeHandle) { 288 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 289 SkXfermode* xfermode = reinterpret_cast<SkXfermode*>(xfermodeHandle); 290 return reinterpret_cast<jlong>(obj->setXfermode(xfermode)); 291 } 292 293 static jlong setPathEffect(JNIEnv* env, jobject clazz, jlong objHandle, jlong effectHandle) { 294 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 295 SkPathEffect* effect = reinterpret_cast<SkPathEffect*>(effectHandle); 296 return reinterpret_cast<jlong>(obj->setPathEffect(effect)); 297 } 298 299 static jlong setMaskFilter(JNIEnv* env, jobject clazz, jlong objHandle, jlong maskfilterHandle) { 300 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 301 SkMaskFilter* maskfilter = reinterpret_cast<SkMaskFilter*>(maskfilterHandle); 302 return reinterpret_cast<jlong>(obj->setMaskFilter(maskfilter)); 303 } 304 305 static jlong setTypeface(JNIEnv* env, jobject clazz, jlong objHandle, jlong typefaceHandle) { 306#ifndef USE_MINIKIN 307 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 308 SkTypeface* typeface = reinterpret_cast<SkTypeface*>(typefaceHandle); 309 return reinterpret_cast<jlong>(obj->setTypeface(typeface)); 310#else 311 // TODO(raph): not yet implemented 312 return NULL; 313#endif 314 } 315 316 static jlong setRasterizer(JNIEnv* env, jobject clazz, jlong objHandle, jlong rasterizerHandle) { 317 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 318 SkAutoTUnref<SkRasterizer> rasterizer(GraphicsJNI::refNativeRasterizer(rasterizerHandle)); 319 return reinterpret_cast<jlong>(obj->setRasterizer(rasterizer)); 320 } 321 322 static jint getTextAlign(JNIEnv* env, jobject clazz, jlong objHandle) { 323 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 324 return static_cast<jint>(obj->getTextAlign()); 325 } 326 327 static void setTextAlign(JNIEnv* env, jobject clazz, jlong objHandle, jint alignHandle) { 328 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 329 SkPaint::Align align = static_cast<SkPaint::Align>(alignHandle); 330 obj->setTextAlign(align); 331 } 332 333 // generate bcp47 identifier for the supplied locale 334 static void toLanguageTag(char* output, size_t outSize, 335 const char* locale) { 336 if (output == NULL || outSize <= 0) { 337 return; 338 } 339 if (locale == NULL) { 340 output[0] = '\0'; 341 return; 342 } 343 char canonicalChars[ULOC_FULLNAME_CAPACITY]; 344 UErrorCode uErr = U_ZERO_ERROR; 345 uloc_canonicalize(locale, canonicalChars, ULOC_FULLNAME_CAPACITY, 346 &uErr); 347 if (U_SUCCESS(uErr)) { 348 char likelyChars[ULOC_FULLNAME_CAPACITY]; 349 uErr = U_ZERO_ERROR; 350 uloc_addLikelySubtags(canonicalChars, likelyChars, 351 ULOC_FULLNAME_CAPACITY, &uErr); 352 if (U_SUCCESS(uErr)) { 353 uErr = U_ZERO_ERROR; 354 uloc_toLanguageTag(likelyChars, output, outSize, FALSE, &uErr); 355 if (U_SUCCESS(uErr)) { 356 return; 357 } else { 358 ALOGD("uloc_toLanguageTag(\"%s\") failed: %s", likelyChars, 359 u_errorName(uErr)); 360 } 361 } else { 362 ALOGD("uloc_addLikelySubtags(\"%s\") failed: %s", 363 canonicalChars, u_errorName(uErr)); 364 } 365 } else { 366 ALOGD("uloc_canonicalize(\"%s\") failed: %s", locale, 367 u_errorName(uErr)); 368 } 369 // unable to build a proper language identifier 370 output[0] = '\0'; 371 } 372 373 static void setTextLocale(JNIEnv* env, jobject clazz, jlong objHandle, jstring locale) { 374 SkPaint* obj = reinterpret_cast<SkPaint*>(objHandle); 375 ScopedUtfChars localeChars(env, locale); 376 char langTag[ULOC_FULLNAME_CAPACITY]; 377 toLanguageTag(langTag, ULOC_FULLNAME_CAPACITY, localeChars.c_str()); 378 379 SkPaintOptionsAndroid paintOpts = obj->getPaintOptionsAndroid(); 380 paintOpts.setLanguage(langTag); 381 obj->setPaintOptionsAndroid(paintOpts); 382 } 383 384 static jboolean isElegantTextHeight(JNIEnv* env, jobject paint) { 385 NPE_CHECK_RETURN_ZERO(env, paint); 386 SkPaint* obj = GraphicsJNI::getNativePaint(env, paint); 387 SkPaintOptionsAndroid paintOpts = obj->getPaintOptionsAndroid(); 388 return paintOpts.getFontVariant() == SkPaintOptionsAndroid::kElegant_Variant; 389 } 390 391 static void setElegantTextHeight(JNIEnv* env, jobject paint, jboolean aa) { 392 NPE_CHECK_RETURN_VOID(env, paint); 393 SkPaint* obj = GraphicsJNI::getNativePaint(env, paint); 394 SkPaintOptionsAndroid::FontVariant variant = 395 aa ? SkPaintOptionsAndroid::kElegant_Variant : 396 SkPaintOptionsAndroid::kDefault_Variant; 397 SkPaintOptionsAndroid paintOpts = obj->getPaintOptionsAndroid(); 398 paintOpts.setFontVariant(variant); 399 obj->setPaintOptionsAndroid(paintOpts); 400 } 401 402 static jfloat getTextSize(JNIEnv* env, jobject paint) { 403 NPE_CHECK_RETURN_ZERO(env, paint); 404 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextSize()); 405 } 406 407 static void setTextSize(JNIEnv* env, jobject paint, jfloat textSize) { 408 NPE_CHECK_RETURN_VOID(env, paint); 409 GraphicsJNI::getNativePaint(env, paint)->setTextSize(textSize); 410 } 411 412 static jfloat getTextScaleX(JNIEnv* env, jobject paint) { 413 NPE_CHECK_RETURN_ZERO(env, paint); 414 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextScaleX()); 415 } 416 417 static void setTextScaleX(JNIEnv* env, jobject paint, jfloat scaleX) { 418 NPE_CHECK_RETURN_VOID(env, paint); 419 GraphicsJNI::getNativePaint(env, paint)->setTextScaleX(scaleX); 420 } 421 422 static jfloat getTextSkewX(JNIEnv* env, jobject paint) { 423 NPE_CHECK_RETURN_ZERO(env, paint); 424 return SkScalarToFloat(GraphicsJNI::getNativePaint(env, paint)->getTextSkewX()); 425 } 426 427 static void setTextSkewX(JNIEnv* env, jobject paint, jfloat skewX) { 428 NPE_CHECK_RETURN_VOID(env, paint); 429 GraphicsJNI::getNativePaint(env, paint)->setTextSkewX(skewX); 430 } 431 432 static jfloat ascent(JNIEnv* env, jobject paint) { 433 NPE_CHECK_RETURN_ZERO(env, paint); 434 SkPaint::FontMetrics metrics; 435 (void)GraphicsJNI::getNativePaint(env, paint)->getFontMetrics(&metrics); 436 return SkScalarToFloat(metrics.fAscent); 437 } 438 439 static jfloat descent(JNIEnv* env, jobject paint) { 440 NPE_CHECK_RETURN_ZERO(env, paint); 441 SkPaint::FontMetrics metrics; 442 (void)GraphicsJNI::getNativePaint(env, paint)->getFontMetrics(&metrics); 443 return SkScalarToFloat(metrics.fDescent); 444 } 445 446 static SkScalar getMetricsInternal(SkPaint *paint, SkPaint::FontMetrics *metrics) { 447 const int kElegantTop = 2500; 448 const int kElegantBottom = -1000; 449 const int kElegantAscent = 1946; 450 const int kElegantDescent = -512; 451 const int kElegantLeading = 0; 452 SkScalar spacing = paint->getFontMetrics(metrics); 453 SkPaintOptionsAndroid paintOpts = paint->getPaintOptionsAndroid(); 454 if (paintOpts.getFontVariant() == SkPaintOptionsAndroid::kElegant_Variant) { 455 SkScalar size = paint->getTextSize(); 456 metrics->fTop = -size * kElegantTop / 2048; 457 metrics->fBottom = -size * kElegantBottom / 2048; 458 metrics->fAscent = -size * kElegantAscent / 2048; 459 metrics->fDescent = -size * kElegantDescent / 2048; 460 metrics->fLeading = size * kElegantLeading / 2048; 461 spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading; 462 } 463 return spacing; 464 } 465 466 static jfloat getFontMetrics(JNIEnv* env, jobject paint, jobject metricsObj) { 467 NPE_CHECK_RETURN_ZERO(env, paint); 468 SkPaint::FontMetrics metrics; 469 SkScalar spacing = getMetricsInternal(GraphicsJNI::getNativePaint(env, paint), &metrics); 470 471 if (metricsObj) { 472 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetrics_class)); 473 env->SetFloatField(metricsObj, gFontMetrics_fieldID.top, SkScalarToFloat(metrics.fTop)); 474 env->SetFloatField(metricsObj, gFontMetrics_fieldID.ascent, SkScalarToFloat(metrics.fAscent)); 475 env->SetFloatField(metricsObj, gFontMetrics_fieldID.descent, SkScalarToFloat(metrics.fDescent)); 476 env->SetFloatField(metricsObj, gFontMetrics_fieldID.bottom, SkScalarToFloat(metrics.fBottom)); 477 env->SetFloatField(metricsObj, gFontMetrics_fieldID.leading, SkScalarToFloat(metrics.fLeading)); 478 } 479 return SkScalarToFloat(spacing); 480 } 481 482 static jint getFontMetricsInt(JNIEnv* env, jobject paint, jobject metricsObj) { 483 NPE_CHECK_RETURN_ZERO(env, paint); 484 SkPaint::FontMetrics metrics; 485 486 getMetricsInternal(GraphicsJNI::getNativePaint(env, paint), &metrics); 487 int ascent = SkScalarRoundToInt(metrics.fAscent); 488 int descent = SkScalarRoundToInt(metrics.fDescent); 489 int leading = SkScalarRoundToInt(metrics.fLeading); 490 491 if (metricsObj) { 492 SkASSERT(env->IsInstanceOf(metricsObj, gFontMetricsInt_class)); 493 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.top, SkScalarFloorToInt(metrics.fTop)); 494 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.ascent, ascent); 495 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.descent, descent); 496 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.bottom, SkScalarCeilToInt(metrics.fBottom)); 497 env->SetIntField(metricsObj, gFontMetricsInt_fieldID.leading, leading); 498 } 499 return descent - ascent + leading; 500 } 501 502 static jfloat measureText_CIII(JNIEnv* env, jobject jpaint, jcharArray text, jint index, jint count, 503 jint bidiFlags) { 504 NPE_CHECK_RETURN_ZERO(env, jpaint); 505 NPE_CHECK_RETURN_ZERO(env, text); 506 507 size_t textLength = env->GetArrayLength(text); 508 if ((index | count) < 0 || (size_t)(index + count) > textLength) { 509 doThrowAIOOBE(env); 510 return 0; 511 } 512 if (count == 0) { 513 return 0; 514 } 515 516 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 517 const jchar* textArray = env->GetCharArrayElements(text, NULL); 518 jfloat result = 0; 519 520#ifdef USE_MINIKIN 521 Layout layout; 522 TypefaceImpl* typeface = GraphicsJNI::getNativeTypeface(env, jpaint); 523 MinikinUtils::SetLayoutProperties(&layout, paint, bidiFlags, typeface); 524 layout.doLayout(textArray + index, count); 525 result = layout.getAdvance(); 526#else 527 TextLayout::getTextRunAdvances(paint, textArray, index, count, textLength, 528 bidiFlags, NULL /* dont need all advances */, &result); 529#endif 530 531 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 532 return result; 533 } 534 535 static jfloat measureText_StringIII(JNIEnv* env, jobject jpaint, jstring text, jint start, jint end, 536 jint bidiFlags) { 537 NPE_CHECK_RETURN_ZERO(env, jpaint); 538 NPE_CHECK_RETURN_ZERO(env, text); 539 540 size_t textLength = env->GetStringLength(text); 541 int count = end - start; 542 if ((start | count) < 0 || (size_t)end > textLength) { 543 doThrowAIOOBE(env); 544 return 0; 545 } 546 if (count == 0) { 547 return 0; 548 } 549 550 const jchar* textArray = env->GetStringChars(text, NULL); 551 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 552 jfloat width = 0; 553 554#ifdef USE_MINIKIN 555 Layout layout; 556 TypefaceImpl* typeface = GraphicsJNI::getNativeTypeface(env, jpaint); 557 MinikinUtils::SetLayoutProperties(&layout, paint, bidiFlags, typeface); 558 layout.doLayout(textArray + start, count); 559 width = layout.getAdvance(); 560#else 561 TextLayout::getTextRunAdvances(paint, textArray, start, count, textLength, 562 bidiFlags, NULL /* dont need all advances */, &width); 563#endif 564 565 env->ReleaseStringChars(text, textArray); 566 return width; 567 } 568 569 static jfloat measureText_StringI(JNIEnv* env, jobject jpaint, jstring text, jint bidiFlags) { 570 NPE_CHECK_RETURN_ZERO(env, jpaint); 571 NPE_CHECK_RETURN_ZERO(env, text); 572 573 size_t textLength = env->GetStringLength(text); 574 if (textLength == 0) { 575 return 0; 576 } 577 578 const jchar* textArray = env->GetStringChars(text, NULL); 579 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 580 jfloat width = 0; 581 582#ifdef USE_MINIKIN 583 Layout layout; 584 TypefaceImpl* typeface = GraphicsJNI::getNativeTypeface(env, jpaint); 585 MinikinUtils::SetLayoutProperties(&layout, paint, bidiFlags, typeface); 586 layout.doLayout(textArray, textLength); 587 width = layout.getAdvance(); 588#else 589 TextLayout::getTextRunAdvances(paint, textArray, 0, textLength, textLength, 590 bidiFlags, NULL /* dont need all advances */, &width); 591#endif 592 593 env->ReleaseStringChars(text, textArray); 594 return width; 595 } 596 597 static int dotextwidths(JNIEnv* env, SkPaint* paint, TypefaceImpl* typeface, const jchar text[], int count, 598 jfloatArray widths, jint bidiFlags) { 599 NPE_CHECK_RETURN_ZERO(env, paint); 600 NPE_CHECK_RETURN_ZERO(env, text); 601 602 if (count < 0 || !widths) { 603 doThrowAIOOBE(env); 604 return 0; 605 } 606 if (count == 0) { 607 return 0; 608 } 609 size_t widthsLength = env->GetArrayLength(widths); 610 if ((size_t)count > widthsLength) { 611 doThrowAIOOBE(env); 612 return 0; 613 } 614 615 AutoJavaFloatArray autoWidths(env, widths, count); 616 jfloat* widthsArray = autoWidths.ptr(); 617 618#ifdef USE_MINIKIN 619 Layout layout; 620 MinikinUtils::SetLayoutProperties(&layout, paint, bidiFlags, typeface); 621 layout.doLayout(text, count); 622 layout.getAdvances(widthsArray); 623#else 624 TextLayout::getTextRunAdvances(paint, text, 0, count, count, 625 bidiFlags, widthsArray, NULL /* dont need totalAdvance */); 626#endif 627 628 return count; 629 } 630 631 static jint getTextWidths___CIII_F(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jcharArray text, 632 jint index, jint count, jint bidiFlags, jfloatArray widths) { 633 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 634 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 635 const jchar* textArray = env->GetCharArrayElements(text, NULL); 636 count = dotextwidths(env, paint, typeface, textArray + index, count, widths, bidiFlags); 637 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 638 JNI_ABORT); 639 return count; 640 } 641 642 static jint getTextWidths__StringIII_F(JNIEnv* env, jobject clazz, jlong paintHandle, jlong typefaceHandle, jstring text, 643 jint start, jint end, jint bidiFlags, jfloatArray widths) { 644 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 645 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 646 const jchar* textArray = env->GetStringChars(text, NULL); 647 int count = dotextwidths(env, paint, typeface, textArray + start, end - start, widths, bidiFlags); 648 env->ReleaseStringChars(text, textArray); 649 return count; 650 } 651 652 static int doTextGlyphs(JNIEnv* env, SkPaint* paint, const jchar* text, jint start, jint count, 653 jint contextCount, jint flags, jcharArray glyphs) { 654 NPE_CHECK_RETURN_ZERO(env, paint); 655 NPE_CHECK_RETURN_ZERO(env, text); 656 657 if ((start | count | contextCount) < 0 || contextCount < count || !glyphs) { 658 doThrowAIOOBE(env); 659 return 0; 660 } 661 if (count == 0) { 662 return 0; 663 } 664 size_t glypthsLength = env->GetArrayLength(glyphs); 665 if ((size_t)count > glypthsLength) { 666 doThrowAIOOBE(env); 667 return 0; 668 } 669 670 jchar* glyphsArray = env->GetCharArrayElements(glyphs, NULL); 671 672 sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint, 673 text, start, count, contextCount, flags); 674 const jchar* shapedGlyphs = value->getGlyphs(); 675 size_t glyphsCount = value->getGlyphsCount(); 676 memcpy(glyphsArray, shapedGlyphs, sizeof(jchar) * glyphsCount); 677 678 env->ReleaseCharArrayElements(glyphs, glyphsArray, JNI_ABORT); 679 return glyphsCount; 680 } 681 682 static jint getTextGlyphs__StringIIIII_C(JNIEnv* env, jobject clazz, jlong paintHandle, 683 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint flags, 684 jcharArray glyphs) { 685 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 686 const jchar* textArray = env->GetStringChars(text, NULL); 687 int count = doTextGlyphs(env, paint, textArray + contextStart, start - contextStart, 688 end - start, contextEnd - contextStart, flags, glyphs); 689 env->ReleaseStringChars(text, textArray); 690 return count; 691 } 692 693 static jfloat doTextRunAdvances(JNIEnv *env, SkPaint *paint, TypefaceImpl* typeface, const jchar *text, 694 jint start, jint count, jint contextCount, jint flags, 695 jfloatArray advances, jint advancesIndex) { 696 NPE_CHECK_RETURN_ZERO(env, paint); 697 NPE_CHECK_RETURN_ZERO(env, text); 698 699 if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) { 700 doThrowAIOOBE(env); 701 return 0; 702 } 703 if (count == 0) { 704 return 0; 705 } 706 if (advances) { 707 size_t advancesLength = env->GetArrayLength(advances); 708 if ((size_t)count > advancesLength) { 709 doThrowAIOOBE(env); 710 return 0; 711 } 712 } 713 jfloat* advancesArray = new jfloat[count]; 714 jfloat totalAdvance = 0; 715 716#ifdef USE_MINIKIN 717 Layout layout; 718 MinikinUtils::SetLayoutProperties(&layout, paint, flags, typeface); 719 layout.doLayout(text + start, count); 720 layout.getAdvances(advancesArray); 721 totalAdvance = layout.getAdvance(); 722#else 723 TextLayout::getTextRunAdvances(paint, text, start, count, contextCount, flags, 724 advancesArray, &totalAdvance); 725#endif 726 727 if (advances != NULL) { 728 env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray); 729 } 730 delete [] advancesArray; 731 return totalAdvance; 732 } 733 734 static jfloat getTextRunAdvances___CIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 735 jlong typefaceHandle, 736 jcharArray text, jint index, jint count, jint contextIndex, jint contextCount, 737 jint flags, jfloatArray advances, jint advancesIndex) { 738 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 739 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 740 jchar* textArray = env->GetCharArrayElements(text, NULL); 741 jfloat result = doTextRunAdvances(env, paint, typeface, textArray + contextIndex, 742 index - contextIndex, count, contextCount, flags, advances, advancesIndex); 743 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 744 return result; 745 } 746 747 static jfloat getTextRunAdvances__StringIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle, 748 jlong typefaceHandle, 749 jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint flags, 750 jfloatArray advances, jint advancesIndex) { 751 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 752 TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefaceHandle); 753 const jchar* textArray = env->GetStringChars(text, NULL); 754 jfloat result = doTextRunAdvances(env, paint, typeface, textArray + contextStart, 755 start - contextStart, end - start, contextEnd - contextStart, flags, 756 advances, advancesIndex); 757 env->ReleaseStringChars(text, textArray); 758 return result; 759 } 760 761 static jint doTextRunCursor(JNIEnv *env, SkPaint* paint, const jchar *text, jint start, 762 jint count, jint flags, jint offset, jint opt) { 763 jfloat scalarArray[count]; 764 765 TextLayout::getTextRunAdvances(paint, text, start, count, start + count, flags, 766 scalarArray, NULL /* dont need totalAdvance */); 767 768 jint pos = offset - start; 769 switch (opt) { 770 case AFTER: 771 if (pos < count) { 772 pos += 1; 773 } 774 // fall through 775 case AT_OR_AFTER: 776 while (pos < count && scalarArray[pos] == 0) { 777 ++pos; 778 } 779 break; 780 case BEFORE: 781 if (pos > 0) { 782 --pos; 783 } 784 // fall through 785 case AT_OR_BEFORE: 786 while (pos > 0 && scalarArray[pos] == 0) { 787 --pos; 788 } 789 break; 790 case AT: 791 default: 792 if (scalarArray[pos] == 0) { 793 pos = -1; 794 } 795 break; 796 } 797 798 if (pos != -1) { 799 pos += start; 800 } 801 802 return pos; 803 } 804 805 static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text, 806 jint contextStart, jint contextCount, jint flags, jint offset, jint cursorOpt) { 807 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 808 jchar* textArray = env->GetCharArrayElements(text, NULL); 809 jint result = doTextRunCursor(env, paint, textArray, contextStart, contextCount, flags, 810 offset, cursorOpt); 811 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 812 return result; 813 } 814 815 static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle, jstring text, 816 jint contextStart, jint contextEnd, jint flags, jint offset, jint cursorOpt) { 817 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 818 const jchar* textArray = env->GetStringChars(text, NULL); 819 jint result = doTextRunCursor(env, paint, textArray, contextStart, 820 contextEnd - contextStart, flags, offset, cursorOpt); 821 env->ReleaseStringChars(text, textArray); 822 return result; 823 } 824 825 static void getTextPath(JNIEnv* env, SkPaint* paint, const jchar* text, jint count, 826 jint bidiFlags, jfloat x, jfloat y, SkPath *path) { 827 TextLayout::getTextPath(paint, text, count, bidiFlags, x, y, path); 828 } 829 830 static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags, 831 jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) { 832 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 833 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 834 const jchar* textArray = env->GetCharArrayElements(text, NULL); 835 getTextPath(env, paint, textArray + index, count, bidiFlags, x, y, path); 836 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT); 837 } 838 839 static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags, 840 jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) { 841 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 842 SkPath* path = reinterpret_cast<SkPath*>(pathHandle); 843 const jchar* textArray = env->GetStringChars(text, NULL); 844 getTextPath(env, paint, textArray + start, end - start, bidiFlags, x, y, path); 845 env->ReleaseStringChars(text, textArray); 846 } 847 848 static void setShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle, jfloat radius, 849 jfloat dx, jfloat dy, jint color) { 850 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 851 if (radius <= 0) { 852 paint->setLooper(NULL); 853 } 854 else { 855 SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius); 856 paint->setLooper(SkBlurDrawLooper::Create((SkColor)color, sigma, dx, dy))->unref(); 857 } 858 } 859 860 static jboolean hasShadowLayer(JNIEnv* env, jobject clazz, jlong paintHandle) { 861 SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 862 return paint->getLooper() && paint->getLooper()->asABlurShadow(NULL); 863 } 864 865 static int breakText(JNIEnv* env, SkPaint& paint, const jchar text[], 866 int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured, 867 SkPaint::TextBufferDirection tbd) { 868 sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(&paint, 869 text, 0, count, count, bidiFlags); 870 if (value == NULL) { 871 return 0; 872 } 873 SkScalar measured; 874 size_t bytes = paint.breakText(value->getGlyphs(), value->getGlyphsCount() << 1, 875 maxWidth, &measured, tbd); 876 SkASSERT((bytes & 1) == 0); 877 878 if (jmeasured && env->GetArrayLength(jmeasured) > 0) { 879 AutoJavaFloatArray autoMeasured(env, jmeasured, 1); 880 jfloat* array = autoMeasured.ptr(); 881 array[0] = SkScalarToFloat(measured); 882 } 883 return bytes >> 1; 884 } 885 886 static jint breakTextC(JNIEnv* env, jobject jpaint, jcharArray jtext, 887 jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 888 NPE_CHECK_RETURN_ZERO(env, jpaint); 889 NPE_CHECK_RETURN_ZERO(env, jtext); 890 891 SkPaint::TextBufferDirection tbd; 892 if (count < 0) { 893 tbd = SkPaint::kBackward_TextBufferDirection; 894 count = -count; 895 } 896 else { 897 tbd = SkPaint::kForward_TextBufferDirection; 898 } 899 900 if ((index < 0) || (index + count > env->GetArrayLength(jtext))) { 901 doThrowAIOOBE(env); 902 return 0; 903 } 904 905 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 906 const jchar* text = env->GetCharArrayElements(jtext, NULL); 907 count = breakText(env, *paint, text + index, count, maxWidth, 908 bidiFlags, jmeasuredWidth, tbd); 909 env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text), 910 JNI_ABORT); 911 return count; 912 } 913 914 static jint breakTextS(JNIEnv* env, jobject jpaint, jstring jtext, 915 jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) { 916 NPE_CHECK_RETURN_ZERO(env, jpaint); 917 NPE_CHECK_RETURN_ZERO(env, jtext); 918 919 SkPaint::TextBufferDirection tbd = forwards ? 920 SkPaint::kForward_TextBufferDirection : 921 SkPaint::kBackward_TextBufferDirection; 922 923 SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint); 924 int count = env->GetStringLength(jtext); 925 const jchar* text = env->GetStringChars(jtext, NULL); 926 count = breakText(env, *paint, text, count, maxWidth, bidiFlags, jmeasuredWidth, tbd); 927 env->ReleaseStringChars(jtext, text); 928 return count; 929 } 930 931 static void doTextBounds(JNIEnv* env, const jchar* text, int count, 932 jobject bounds, const SkPaint& paint, jint bidiFlags) { 933 SkRect r; 934 SkIRect ir; 935 936 sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(&paint, 937 text, 0, count, count, bidiFlags); 938 if (value == NULL) { 939 return; 940 } 941 paint.measureText(value->getGlyphs(), value->getGlyphsCount() << 1, &r); 942 r.roundOut(&ir); 943 GraphicsJNI::irect_to_jrect(ir, env, bounds); 944 } 945 946 static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, 947 jstring text, jint start, jint end, jint bidiFlags, jobject bounds) { 948 const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle);; 949 const jchar* textArray = env->GetStringChars(text, NULL); 950 doTextBounds(env, textArray + start, end - start, bounds, *paint, bidiFlags); 951 env->ReleaseStringChars(text, textArray); 952 } 953 954 static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, 955 jcharArray text, jint index, jint count, jint bidiFlags, jobject bounds) { 956 const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); 957 const jchar* textArray = env->GetCharArrayElements(text, NULL); 958 doTextBounds(env, textArray + index, count, bounds, *paint, bidiFlags); 959 env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), 960 JNI_ABORT); 961 } 962 963}; 964 965static JNINativeMethod methods[] = { 966 {"finalizer", "(J)V", (void*) SkPaintGlue::finalizer}, 967 {"native_init","()J", (void*) SkPaintGlue::init}, 968 {"native_initWithPaint","(J)J", (void*) SkPaintGlue::initWithPaint}, 969 {"native_reset","(J)V", (void*) SkPaintGlue::reset}, 970 {"native_set","(JJ)V", (void*) SkPaintGlue::assign}, 971 {"getFlags","()I", (void*) SkPaintGlue::getFlags}, 972 {"setFlags","(I)V", (void*) SkPaintGlue::setFlags}, 973 {"getHinting","()I", (void*) SkPaintGlue::getHinting}, 974 {"setHinting","(I)V", (void*) SkPaintGlue::setHinting}, 975 {"setAntiAlias","(Z)V", (void*) SkPaintGlue::setAntiAlias}, 976 {"setSubpixelText","(Z)V", (void*) SkPaintGlue::setSubpixelText}, 977 {"setLinearText","(Z)V", (void*) SkPaintGlue::setLinearText}, 978 {"setUnderlineText","(Z)V", (void*) SkPaintGlue::setUnderlineText}, 979 {"setStrikeThruText","(Z)V", (void*) SkPaintGlue::setStrikeThruText}, 980 {"setFakeBoldText","(Z)V", (void*) SkPaintGlue::setFakeBoldText}, 981 {"setFilterBitmap","(Z)V", (void*) SkPaintGlue::setFilterBitmap}, 982 {"setDither","(Z)V", (void*) SkPaintGlue::setDither}, 983 {"native_getStyle","(J)I", (void*) SkPaintGlue::getStyle}, 984 {"native_setStyle","(JI)V", (void*) SkPaintGlue::setStyle}, 985 {"getColor","()I", (void*) SkPaintGlue::getColor}, 986 {"setColor","(I)V", (void*) SkPaintGlue::setColor}, 987 {"getAlpha","()I", (void*) SkPaintGlue::getAlpha}, 988 {"setAlpha","(I)V", (void*) SkPaintGlue::setAlpha}, 989 {"getStrokeWidth","()F", (void*) SkPaintGlue::getStrokeWidth}, 990 {"setStrokeWidth","(F)V", (void*) SkPaintGlue::setStrokeWidth}, 991 {"getStrokeMiter","()F", (void*) SkPaintGlue::getStrokeMiter}, 992 {"setStrokeMiter","(F)V", (void*) SkPaintGlue::setStrokeMiter}, 993 {"native_getStrokeCap","(J)I", (void*) SkPaintGlue::getStrokeCap}, 994 {"native_setStrokeCap","(JI)V", (void*) SkPaintGlue::setStrokeCap}, 995 {"native_getStrokeJoin","(J)I", (void*) SkPaintGlue::getStrokeJoin}, 996 {"native_setStrokeJoin","(JI)V", (void*) SkPaintGlue::setStrokeJoin}, 997 {"native_getFillPath","(JJJ)Z", (void*) SkPaintGlue::getFillPath}, 998 {"native_setShader","(JJ)J", (void*) SkPaintGlue::setShader}, 999 {"native_setColorFilter","(JJ)J", (void*) SkPaintGlue::setColorFilter}, 1000 {"native_setXfermode","(JJ)J", (void*) SkPaintGlue::setXfermode}, 1001 {"native_setPathEffect","(JJ)J", (void*) SkPaintGlue::setPathEffect}, 1002 {"native_setMaskFilter","(JJ)J", (void*) SkPaintGlue::setMaskFilter}, 1003 {"native_setTypeface","(JJ)J", (void*) SkPaintGlue::setTypeface}, 1004 {"native_setRasterizer","(JJ)J", (void*) SkPaintGlue::setRasterizer}, 1005 {"native_getTextAlign","(J)I", (void*) SkPaintGlue::getTextAlign}, 1006 {"native_setTextAlign","(JI)V", (void*) SkPaintGlue::setTextAlign}, 1007 {"native_setTextLocale","(JLjava/lang/String;)V", (void*) SkPaintGlue::setTextLocale}, 1008 {"isElegantTextHeight","()Z", (void*) SkPaintGlue::isElegantTextHeight}, 1009 {"setElegantTextHeight","(Z)V", (void*) SkPaintGlue::setElegantTextHeight}, 1010 {"getTextSize","()F", (void*) SkPaintGlue::getTextSize}, 1011 {"setTextSize","(F)V", (void*) SkPaintGlue::setTextSize}, 1012 {"getTextScaleX","()F", (void*) SkPaintGlue::getTextScaleX}, 1013 {"setTextScaleX","(F)V", (void*) SkPaintGlue::setTextScaleX}, 1014 {"getTextSkewX","()F", (void*) SkPaintGlue::getTextSkewX}, 1015 {"setTextSkewX","(F)V", (void*) SkPaintGlue::setTextSkewX}, 1016 {"ascent","()F", (void*) SkPaintGlue::ascent}, 1017 {"descent","()F", (void*) SkPaintGlue::descent}, 1018 {"getFontMetrics", "(Landroid/graphics/Paint$FontMetrics;)F", (void*)SkPaintGlue::getFontMetrics}, 1019 {"getFontMetricsInt", "(Landroid/graphics/Paint$FontMetricsInt;)I", (void*)SkPaintGlue::getFontMetricsInt}, 1020 {"native_measureText","([CIII)F", (void*) SkPaintGlue::measureText_CIII}, 1021 {"native_measureText","(Ljava/lang/String;I)F", (void*) SkPaintGlue::measureText_StringI}, 1022 {"native_measureText","(Ljava/lang/String;III)F", (void*) SkPaintGlue::measureText_StringIII}, 1023 {"native_breakText","([CIIFI[F)I", (void*) SkPaintGlue::breakTextC}, 1024 {"native_breakText","(Ljava/lang/String;ZFI[F)I", (void*) SkPaintGlue::breakTextS}, 1025 {"native_getTextWidths","(JJ[CIII[F)I", (void*) SkPaintGlue::getTextWidths___CIII_F}, 1026 {"native_getTextWidths","(JJLjava/lang/String;III[F)I", (void*) SkPaintGlue::getTextWidths__StringIII_F}, 1027 {"native_getTextRunAdvances","(JJ[CIIIII[FI)F", 1028 (void*) SkPaintGlue::getTextRunAdvances___CIIIII_FI}, 1029 {"native_getTextRunAdvances","(JJLjava/lang/String;IIIII[FI)F", 1030 (void*) SkPaintGlue::getTextRunAdvances__StringIIIII_FI}, 1031 1032 1033 {"native_getTextGlyphs","(JLjava/lang/String;IIIII[C)I", 1034 (void*) SkPaintGlue::getTextGlyphs__StringIIIII_C}, 1035 {"native_getTextRunCursor", "(J[CIIIII)I", (void*) SkPaintGlue::getTextRunCursor___C}, 1036 {"native_getTextRunCursor", "(JLjava/lang/String;IIIII)I", 1037 (void*) SkPaintGlue::getTextRunCursor__String}, 1038 {"native_getTextPath","(JI[CIIFFJ)V", (void*) SkPaintGlue::getTextPath___C}, 1039 {"native_getTextPath","(JILjava/lang/String;IIFFJ)V", (void*) SkPaintGlue::getTextPath__String}, 1040 {"nativeGetStringBounds", "(JLjava/lang/String;IIILandroid/graphics/Rect;)V", 1041 (void*) SkPaintGlue::getStringBounds }, 1042 {"nativeGetCharArrayBounds", "(J[CIIILandroid/graphics/Rect;)V", 1043 (void*) SkPaintGlue::getCharArrayBounds }, 1044 {"native_setShadowLayer", "(JFFFI)V", (void*)SkPaintGlue::setShadowLayer}, 1045 {"native_hasShadowLayer", "(J)Z", (void*)SkPaintGlue::hasShadowLayer} 1046}; 1047 1048static jfieldID req_fieldID(jfieldID id) { 1049 SkASSERT(id); 1050 return id; 1051} 1052 1053int register_android_graphics_Paint(JNIEnv* env) { 1054 gFontMetrics_class = env->FindClass("android/graphics/Paint$FontMetrics"); 1055 SkASSERT(gFontMetrics_class); 1056 gFontMetrics_class = (jclass)env->NewGlobalRef(gFontMetrics_class); 1057 1058 gFontMetrics_fieldID.top = req_fieldID(env->GetFieldID(gFontMetrics_class, "top", "F")); 1059 gFontMetrics_fieldID.ascent = req_fieldID(env->GetFieldID(gFontMetrics_class, "ascent", "F")); 1060 gFontMetrics_fieldID.descent = req_fieldID(env->GetFieldID(gFontMetrics_class, "descent", "F")); 1061 gFontMetrics_fieldID.bottom = req_fieldID(env->GetFieldID(gFontMetrics_class, "bottom", "F")); 1062 gFontMetrics_fieldID.leading = req_fieldID(env->GetFieldID(gFontMetrics_class, "leading", "F")); 1063 1064 gFontMetricsInt_class = env->FindClass("android/graphics/Paint$FontMetricsInt"); 1065 SkASSERT(gFontMetricsInt_class); 1066 gFontMetricsInt_class = (jclass)env->NewGlobalRef(gFontMetricsInt_class); 1067 1068 gFontMetricsInt_fieldID.top = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "top", "I")); 1069 gFontMetricsInt_fieldID.ascent = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "ascent", "I")); 1070 gFontMetricsInt_fieldID.descent = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "descent", "I")); 1071 gFontMetricsInt_fieldID.bottom = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "bottom", "I")); 1072 gFontMetricsInt_fieldID.leading = req_fieldID(env->GetFieldID(gFontMetricsInt_class, "leading", "I")); 1073 1074 int result = AndroidRuntime::registerNativeMethods(env, "android/graphics/Paint", methods, 1075 sizeof(methods) / sizeof(methods[0])); 1076 return result; 1077} 1078 1079} 1080