GLES20Canvas.java revision 76d3a1b8d035d27bc80b0f2fc480a903bd001514
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.view; 18 19import android.graphics.Bitmap; 20import android.graphics.Canvas; 21import android.graphics.ColorFilter; 22import android.graphics.DrawFilter; 23import android.graphics.Matrix; 24import android.graphics.NinePatch; 25import android.graphics.Paint; 26import android.graphics.PaintFlagsDrawFilter; 27import android.graphics.Path; 28import android.graphics.Picture; 29import android.graphics.PorterDuff; 30import android.graphics.Rect; 31import android.graphics.RectF; 32import android.graphics.Region; 33import android.graphics.Shader; 34import android.graphics.SurfaceTexture; 35import android.graphics.TemporaryBuffer; 36import android.text.GraphicsOperations; 37import android.text.SpannableString; 38import android.text.SpannedString; 39import android.text.TextUtils; 40 41/** 42 * An implementation of Canvas on top of OpenGL ES 2.0. 43 */ 44class GLES20Canvas extends HardwareCanvas { 45 // Must match modifiers used in the JNI layer 46 private static final int MODIFIER_NONE = 0; 47 private static final int MODIFIER_SHADOW = 1; 48 private static final int MODIFIER_SHADER = 2; 49 50 private final boolean mOpaque; 51 private long mRenderer; 52 53 // The native renderer will be destroyed when this object dies. 54 // DO NOT overwrite this reference once it is set. 55 @SuppressWarnings({"unused", "FieldCanBeLocal"}) 56 private CanvasFinalizer mFinalizer; 57 58 private int mWidth; 59 private int mHeight; 60 61 private float[] mPoint; 62 private float[] mLine; 63 64 private Rect mClipBounds; 65 private RectF mPathBounds; 66 67 private DrawFilter mFilter; 68 69 /////////////////////////////////////////////////////////////////////////// 70 // JNI 71 /////////////////////////////////////////////////////////////////////////// 72 73 private static native boolean nIsAvailable(); 74 private static boolean sIsAvailable = nIsAvailable(); 75 76 static boolean isAvailable() { 77 return sIsAvailable; 78 } 79 80 /////////////////////////////////////////////////////////////////////////// 81 // Constructors 82 /////////////////////////////////////////////////////////////////////////// 83 84 /** 85 * Creates a canvas to render directly on screen. 86 */ 87 GLES20Canvas(boolean translucent) { 88 this(false, translucent); 89 } 90 91 /** 92 * Creates a canvas to render into an FBO. 93 */ 94 GLES20Canvas(long layer, boolean translucent) { 95 mOpaque = !translucent; 96 mRenderer = nCreateLayerRenderer(layer); 97 setupFinalizer(); 98 } 99 100 protected GLES20Canvas(boolean record, boolean translucent) { 101 mOpaque = !translucent; 102 103 if (record) { 104 mRenderer = nCreateDisplayListRenderer(); 105 } else { 106 mRenderer = nCreateRenderer(); 107 } 108 109 setupFinalizer(); 110 } 111 112 private void setupFinalizer() { 113 if (mRenderer == 0) { 114 throw new IllegalStateException("Could not create GLES20Canvas renderer"); 115 } else { 116 mFinalizer = new CanvasFinalizer(mRenderer); 117 } 118 } 119 120 protected void resetDisplayListRenderer() { 121 nResetDisplayListRenderer(mRenderer); 122 } 123 124 private static native long nCreateRenderer(); 125 private static native long nCreateLayerRenderer(long layer); 126 private static native long nCreateDisplayListRenderer(); 127 private static native void nResetDisplayListRenderer(long renderer); 128 private static native void nDestroyRenderer(long renderer); 129 130 private static final class CanvasFinalizer { 131 private final long mRenderer; 132 133 public CanvasFinalizer(long renderer) { 134 mRenderer = renderer; 135 } 136 137 @Override 138 protected void finalize() throws Throwable { 139 try { 140 nDestroyRenderer(mRenderer); 141 } finally { 142 super.finalize(); 143 } 144 } 145 } 146 147 public static void setProperty(String name, String value) { 148 nSetProperty(name, value); 149 } 150 151 private static native void nSetProperty(String name, String value); 152 153 /////////////////////////////////////////////////////////////////////////// 154 // Hardware layers 155 /////////////////////////////////////////////////////////////////////////// 156 157 @Override 158 void pushLayerUpdate(HardwareLayer layer) { 159 nPushLayerUpdate(mRenderer, ((GLES20RenderLayer) layer).mLayer); 160 } 161 162 @Override 163 void cancelLayerUpdate(HardwareLayer layer) { 164 nCancelLayerUpdate(mRenderer, ((GLES20RenderLayer) layer).mLayer); 165 } 166 167 @Override 168 void flushLayerUpdates() { 169 nFlushLayerUpdates(mRenderer); 170 } 171 172 @Override 173 void clearLayerUpdates() { 174 nClearLayerUpdates(mRenderer); 175 } 176 177 static native long nCreateTextureLayer(boolean opaque, int[] layerInfo); 178 static native long nCreateLayer(int width, int height, boolean isOpaque, int[] layerInfo); 179 static native boolean nResizeLayer(long layerId, int width, int height, int[] layerInfo); 180 static native void nSetOpaqueLayer(long layerId, boolean isOpaque); 181 static native void nSetLayerPaint(long layerId, long nativePaint); 182 static native void nSetLayerColorFilter(long layerId, long nativeColorFilter); 183 static native void nUpdateTextureLayer(long layerId, int width, int height, boolean opaque, 184 SurfaceTexture surface); 185 static native void nClearLayerTexture(long layerId); 186 static native void nSetTextureLayerTransform(long layerId, long matrix); 187 static native void nDestroyLayer(long layerId); 188 static native void nDestroyLayerDeferred(long layerId); 189 static native void nUpdateRenderLayer(long layerId, long renderer, long displayList, 190 int left, int top, int right, int bottom); 191 static native boolean nCopyLayer(long layerId, long bitmap); 192 193 private static native void nClearLayerUpdates(long renderer); 194 private static native void nFlushLayerUpdates(long renderer); 195 private static native void nPushLayerUpdate(long renderer, long layer); 196 private static native void nCancelLayerUpdate(long renderer, long layer); 197 198 /////////////////////////////////////////////////////////////////////////// 199 // Canvas management 200 /////////////////////////////////////////////////////////////////////////// 201 202 @Override 203 public boolean isOpaque() { 204 return mOpaque; 205 } 206 207 @Override 208 public int getWidth() { 209 return mWidth; 210 } 211 212 @Override 213 public int getHeight() { 214 return mHeight; 215 } 216 217 @Override 218 public int getMaximumBitmapWidth() { 219 return nGetMaximumTextureWidth(); 220 } 221 222 @Override 223 public int getMaximumBitmapHeight() { 224 return nGetMaximumTextureHeight(); 225 } 226 227 private static native int nGetMaximumTextureWidth(); 228 private static native int nGetMaximumTextureHeight(); 229 230 /** 231 * Returns the native OpenGLRenderer object. 232 */ 233 long getRenderer() { 234 return mRenderer; 235 } 236 237 /////////////////////////////////////////////////////////////////////////// 238 // Setup 239 /////////////////////////////////////////////////////////////////////////// 240 241 @Override 242 public void setViewport(int width, int height) { 243 mWidth = width; 244 mHeight = height; 245 246 nSetViewport(mRenderer, width, height); 247 } 248 249 private static native void nSetViewport(long renderer, int width, int height); 250 251 @Override 252 public int onPreDraw(Rect dirty) { 253 if (dirty != null) { 254 return nPrepareDirty(mRenderer, dirty.left, dirty.top, dirty.right, dirty.bottom, 255 mOpaque); 256 } else { 257 return nPrepare(mRenderer, mOpaque); 258 } 259 } 260 261 private static native int nPrepare(long renderer, boolean opaque); 262 private static native int nPrepareDirty(long renderer, int left, int top, int right, int bottom, 263 boolean opaque); 264 265 @Override 266 public void onPostDraw() { 267 nFinish(mRenderer); 268 } 269 270 private static native void nFinish(long renderer); 271 272 /** 273 * Returns the size of the stencil buffer required by the underlying 274 * implementation. 275 * 276 * @return The minimum number of bits the stencil buffer must. Always >= 0. 277 * 278 * @hide 279 */ 280 public static int getStencilSize() { 281 return nGetStencilSize(); 282 } 283 284 private static native int nGetStencilSize(); 285 286 /////////////////////////////////////////////////////////////////////////// 287 // Functor 288 /////////////////////////////////////////////////////////////////////////// 289 290 @Override 291 public int callDrawGLFunction(long drawGLFunction) { 292 return nCallDrawGLFunction(mRenderer, drawGLFunction); 293 } 294 295 private static native int nCallDrawGLFunction(long renderer, long drawGLFunction); 296 297 @Override 298 public int invokeFunctors(Rect dirty) { 299 return nInvokeFunctors(mRenderer, dirty); 300 } 301 302 private static native int nInvokeFunctors(long renderer, Rect dirty); 303 304 @Override 305 public void detachFunctor(long functor) { 306 nDetachFunctor(mRenderer, functor); 307 } 308 309 private static native void nDetachFunctor(long renderer, long functor); 310 311 @Override 312 public void attachFunctor(long functor) { 313 nAttachFunctor(mRenderer, functor); 314 } 315 316 private static native void nAttachFunctor(long renderer, long functor); 317 318 /////////////////////////////////////////////////////////////////////////// 319 // Memory 320 /////////////////////////////////////////////////////////////////////////// 321 322 /** 323 * Must match Caches::FlushMode values 324 * 325 * @see #flushCaches(int) 326 */ 327 static final int FLUSH_CACHES_LAYERS = 0; 328 329 /** 330 * Must match Caches::FlushMode values 331 * 332 * @see #flushCaches(int) 333 */ 334 static final int FLUSH_CACHES_MODERATE = 1; 335 336 /** 337 * Must match Caches::FlushMode values 338 * 339 * @see #flushCaches(int) 340 */ 341 static final int FLUSH_CACHES_FULL = 2; 342 343 /** 344 * Flush caches to reclaim as much memory as possible. The amount of memory 345 * to reclaim is indicate by the level parameter. 346 * 347 * The level can be one of {@link #FLUSH_CACHES_MODERATE} or 348 * {@link #FLUSH_CACHES_FULL}. 349 * 350 * @param level Hint about the amount of memory to reclaim 351 */ 352 static void flushCaches(int level) { 353 nFlushCaches(level); 354 } 355 356 private static native void nFlushCaches(int level); 357 358 /** 359 * Release all resources associated with the underlying caches. This should 360 * only be called after a full flushCaches(). 361 * 362 * @hide 363 */ 364 static void terminateCaches() { 365 nTerminateCaches(); 366 } 367 368 private static native void nTerminateCaches(); 369 370 static boolean initCaches() { 371 return nInitCaches(); 372 } 373 374 private static native boolean nInitCaches(); 375 376 /////////////////////////////////////////////////////////////////////////// 377 // Atlas 378 /////////////////////////////////////////////////////////////////////////// 379 380 static void initAtlas(GraphicBuffer buffer, int[] map) { 381 nInitAtlas(buffer, map, map.length); 382 } 383 384 private static native void nInitAtlas(GraphicBuffer buffer, int[] map, int count); 385 386 /////////////////////////////////////////////////////////////////////////// 387 // Display list 388 /////////////////////////////////////////////////////////////////////////// 389 390 long getDisplayList(long displayList) { 391 return nGetDisplayList(mRenderer, displayList); 392 } 393 394 private static native long nGetDisplayList(long renderer, long displayList); 395 396 @Override 397 public int drawDisplayList(DisplayList displayList, Rect dirty, int flags) { 398 return nDrawDisplayList(mRenderer, displayList.getNativeDisplayList(), 399 dirty, flags); 400 } 401 402 private static native int nDrawDisplayList(long renderer, long displayList, 403 Rect dirty, int flags); 404 405 /////////////////////////////////////////////////////////////////////////// 406 // Hardware layer 407 /////////////////////////////////////////////////////////////////////////// 408 409 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 410 layer.setLayerPaint(paint); 411 412 final GLES20Layer glLayer = (GLES20Layer) layer; 413 nDrawLayer(mRenderer, glLayer.getLayer(), x, y); 414 } 415 416 private static native void nDrawLayer(long renderer, long layer, float x, float y); 417 418 void interrupt() { 419 nInterrupt(mRenderer); 420 } 421 422 void resume() { 423 nResume(mRenderer); 424 } 425 426 private static native void nInterrupt(long renderer); 427 private static native void nResume(long renderer); 428 429 /////////////////////////////////////////////////////////////////////////// 430 // Support 431 /////////////////////////////////////////////////////////////////////////// 432 433 private Rect getInternalClipBounds() { 434 if (mClipBounds == null) mClipBounds = new Rect(); 435 return mClipBounds; 436 } 437 438 439 private RectF getPathBounds() { 440 if (mPathBounds == null) mPathBounds = new RectF(); 441 return mPathBounds; 442 } 443 444 private float[] getPointStorage() { 445 if (mPoint == null) mPoint = new float[2]; 446 return mPoint; 447 } 448 449 private float[] getLineStorage() { 450 if (mLine == null) mLine = new float[4]; 451 return mLine; 452 } 453 454 /////////////////////////////////////////////////////////////////////////// 455 // Clipping 456 /////////////////////////////////////////////////////////////////////////// 457 458 @Override 459 public boolean clipPath(Path path) { 460 return nClipPath(mRenderer, path.mNativePath, Region.Op.INTERSECT.nativeInt); 461 } 462 463 @Override 464 public boolean clipPath(Path path, Region.Op op) { 465 return nClipPath(mRenderer, path.mNativePath, op.nativeInt); 466 } 467 468 private static native boolean nClipPath(long renderer, long path, int op); 469 470 @Override 471 public boolean clipRect(float left, float top, float right, float bottom) { 472 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 473 } 474 475 private static native boolean nClipRect(long renderer, float left, float top, 476 float right, float bottom, int op); 477 478 @Override 479 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 480 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 481 } 482 483 @Override 484 public boolean clipRect(int left, int top, int right, int bottom) { 485 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 486 } 487 488 private static native boolean nClipRect(long renderer, int left, int top, 489 int right, int bottom, int op); 490 491 @Override 492 public boolean clipRect(Rect rect) { 493 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 494 Region.Op.INTERSECT.nativeInt); 495 } 496 497 @Override 498 public boolean clipRect(Rect rect, Region.Op op) { 499 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 500 } 501 502 @Override 503 public boolean clipRect(RectF rect) { 504 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 505 Region.Op.INTERSECT.nativeInt); 506 } 507 508 @Override 509 public boolean clipRect(RectF rect, Region.Op op) { 510 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 511 } 512 513 @Override 514 public boolean clipRegion(Region region) { 515 return nClipRegion(mRenderer, region.mNativeRegion, Region.Op.INTERSECT.nativeInt); 516 } 517 518 @Override 519 public boolean clipRegion(Region region, Region.Op op) { 520 return nClipRegion(mRenderer, region.mNativeRegion, op.nativeInt); 521 } 522 523 private static native boolean nClipRegion(long renderer, long region, int op); 524 525 @Override 526 public boolean getClipBounds(Rect bounds) { 527 return nGetClipBounds(mRenderer, bounds); 528 } 529 530 private static native boolean nGetClipBounds(long renderer, Rect bounds); 531 532 @Override 533 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 534 return nQuickReject(mRenderer, left, top, right, bottom); 535 } 536 537 private static native boolean nQuickReject(long renderer, float left, float top, 538 float right, float bottom); 539 540 @Override 541 public boolean quickReject(Path path, EdgeType type) { 542 RectF pathBounds = getPathBounds(); 543 path.computeBounds(pathBounds, true); 544 return nQuickReject(mRenderer, pathBounds.left, pathBounds.top, 545 pathBounds.right, pathBounds.bottom); 546 } 547 548 @Override 549 public boolean quickReject(RectF rect, EdgeType type) { 550 return nQuickReject(mRenderer, rect.left, rect.top, rect.right, rect.bottom); 551 } 552 553 /////////////////////////////////////////////////////////////////////////// 554 // Transformations 555 /////////////////////////////////////////////////////////////////////////// 556 557 @Override 558 public void translate(float dx, float dy) { 559 if (dx != 0.0f || dy != 0.0f) nTranslate(mRenderer, dx, dy); 560 } 561 562 private static native void nTranslate(long renderer, float dx, float dy); 563 564 @Override 565 public void skew(float sx, float sy) { 566 nSkew(mRenderer, sx, sy); 567 } 568 569 private static native void nSkew(long renderer, float sx, float sy); 570 571 @Override 572 public void rotate(float degrees) { 573 nRotate(mRenderer, degrees); 574 } 575 576 private static native void nRotate(long renderer, float degrees); 577 578 @Override 579 public void scale(float sx, float sy) { 580 nScale(mRenderer, sx, sy); 581 } 582 583 private static native void nScale(long renderer, float sx, float sy); 584 585 @Override 586 public void setMatrix(Matrix matrix) { 587 nSetMatrix(mRenderer, matrix == null ? 0 : matrix.native_instance); 588 } 589 590 private static native void nSetMatrix(long renderer, long matrix); 591 592 @SuppressWarnings("deprecation") 593 @Override 594 public void getMatrix(Matrix matrix) { 595 nGetMatrix(mRenderer, matrix.native_instance); 596 } 597 598 private static native void nGetMatrix(long renderer, long matrix); 599 600 @Override 601 public void concat(Matrix matrix) { 602 if (matrix != null) nConcatMatrix(mRenderer, matrix.native_instance); 603 } 604 605 private static native void nConcatMatrix(long renderer, long matrix); 606 607 /////////////////////////////////////////////////////////////////////////// 608 // State management 609 /////////////////////////////////////////////////////////////////////////// 610 611 @Override 612 public int save() { 613 return nSave(mRenderer, Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG); 614 } 615 616 @Override 617 public int save(int saveFlags) { 618 return nSave(mRenderer, saveFlags); 619 } 620 621 private static native int nSave(long renderer, int flags); 622 623 @Override 624 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 625 if (bounds != null) { 626 return saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, paint, saveFlags); 627 } 628 629 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 630 return nSaveLayer(mRenderer, nativePaint, saveFlags); 631 } 632 633 private static native int nSaveLayer(long renderer, long paint, int saveFlags); 634 635 @Override 636 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 637 int saveFlags) { 638 if (left < right && top < bottom) { 639 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 640 return nSaveLayer(mRenderer, left, top, right, bottom, nativePaint, saveFlags); 641 } 642 return save(saveFlags); 643 } 644 645 private static native int nSaveLayer(long renderer, float left, float top, 646 float right, float bottom, long paint, int saveFlags); 647 648 @Override 649 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 650 if (bounds != null) { 651 return saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 652 alpha, saveFlags); 653 } 654 return nSaveLayerAlpha(mRenderer, alpha, saveFlags); 655 } 656 657 private static native int nSaveLayerAlpha(long renderer, int alpha, int saveFlags); 658 659 @Override 660 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 661 int saveFlags) { 662 if (left < right && top < bottom) { 663 return nSaveLayerAlpha(mRenderer, left, top, right, bottom, alpha, saveFlags); 664 } 665 return save(saveFlags); 666 } 667 668 private static native int nSaveLayerAlpha(long renderer, float left, float top, float right, 669 float bottom, int alpha, int saveFlags); 670 671 @Override 672 public void restore() { 673 nRestore(mRenderer); 674 } 675 676 private static native void nRestore(long renderer); 677 678 @Override 679 public void restoreToCount(int saveCount) { 680 nRestoreToCount(mRenderer, saveCount); 681 } 682 683 private static native void nRestoreToCount(long renderer, int saveCount); 684 685 @Override 686 public int getSaveCount() { 687 return nGetSaveCount(mRenderer); 688 } 689 690 private static native int nGetSaveCount(long renderer); 691 692 /////////////////////////////////////////////////////////////////////////// 693 // Filtering 694 /////////////////////////////////////////////////////////////////////////// 695 696 @Override 697 public void setDrawFilter(DrawFilter filter) { 698 mFilter = filter; 699 if (filter == null) { 700 nResetPaintFilter(mRenderer); 701 } else if (filter instanceof PaintFlagsDrawFilter) { 702 PaintFlagsDrawFilter flagsFilter = (PaintFlagsDrawFilter) filter; 703 nSetupPaintFilter(mRenderer, flagsFilter.clearBits, flagsFilter.setBits); 704 } 705 } 706 707 private static native void nResetPaintFilter(long renderer); 708 private static native void nSetupPaintFilter(long renderer, int clearBits, int setBits); 709 710 @Override 711 public DrawFilter getDrawFilter() { 712 return mFilter; 713 } 714 715 /////////////////////////////////////////////////////////////////////////// 716 // Drawing 717 /////////////////////////////////////////////////////////////////////////// 718 719 @Override 720 public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 721 Paint paint) { 722 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 723 try { 724 nDrawArc(mRenderer, oval.left, oval.top, oval.right, oval.bottom, 725 startAngle, sweepAngle, useCenter, paint.mNativePaint); 726 } finally { 727 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 728 } 729 } 730 731 private static native void nDrawArc(long renderer, float left, float top, 732 float right, float bottom, float startAngle, float sweepAngle, 733 boolean useCenter, long paint); 734 735 @Override 736 public void drawARGB(int a, int r, int g, int b) { 737 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 738 } 739 740 @Override 741 public void drawPatch(NinePatch patch, Rect dst, Paint paint) { 742 Bitmap bitmap = patch.getBitmap(); 743 throwIfCannotDraw(bitmap); 744 // Shaders are ignored when drawing patches 745 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 746 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, patch.mNativeChunk, 747 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 748 } 749 750 @Override 751 public void drawPatch(NinePatch patch, RectF dst, Paint paint) { 752 Bitmap bitmap = patch.getBitmap(); 753 throwIfCannotDraw(bitmap); 754 // Shaders are ignored when drawing patches 755 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 756 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, patch.mNativeChunk, 757 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 758 } 759 760 private static native void nDrawPatch(long renderer, long bitmap, byte[] buffer, long chunk, 761 float left, float top, float right, float bottom, long paint); 762 763 @Override 764 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 765 throwIfCannotDraw(bitmap); 766 // Shaders are ignored when drawing bitmaps 767 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 768 try { 769 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 770 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 771 } finally { 772 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 773 } 774 } 775 776 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 777 float left, float top, long paint); 778 779 @Override 780 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 781 throwIfCannotDraw(bitmap); 782 // Shaders are ignored when drawing bitmaps 783 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 784 try { 785 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 786 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 787 matrix.native_instance, nativePaint); 788 } finally { 789 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 790 } 791 } 792 793 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 794 long matrix, long paint); 795 796 @Override 797 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 798 throwIfCannotDraw(bitmap); 799 // Shaders are ignored when drawing bitmaps 800 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 801 try { 802 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 803 804 int left, top, right, bottom; 805 if (src == null) { 806 left = top = 0; 807 right = bitmap.getWidth(); 808 bottom = bitmap.getHeight(); 809 } else { 810 left = src.left; 811 right = src.right; 812 top = src.top; 813 bottom = src.bottom; 814 } 815 816 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 817 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 818 } finally { 819 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 820 } 821 } 822 823 @Override 824 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 825 throwIfCannotDraw(bitmap); 826 // Shaders are ignored when drawing bitmaps 827 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 828 try { 829 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 830 831 float left, top, right, bottom; 832 if (src == null) { 833 left = top = 0; 834 right = bitmap.getWidth(); 835 bottom = bitmap.getHeight(); 836 } else { 837 left = src.left; 838 right = src.right; 839 top = src.top; 840 bottom = src.bottom; 841 } 842 843 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 844 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 845 } finally { 846 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 847 } 848 } 849 850 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 851 float srcLeft, float srcTop, float srcRight, float srcBottom, 852 float left, float top, float right, float bottom, long paint); 853 854 @Override 855 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 856 int width, int height, boolean hasAlpha, Paint paint) { 857 if (width < 0) { 858 throw new IllegalArgumentException("width must be >= 0"); 859 } 860 861 if (height < 0) { 862 throw new IllegalArgumentException("height must be >= 0"); 863 } 864 865 if (Math.abs(stride) < width) { 866 throw new IllegalArgumentException("abs(stride) must be >= width"); 867 } 868 869 int lastScanline = offset + (height - 1) * stride; 870 int length = colors.length; 871 872 if (offset < 0 || (offset + width > length) || lastScanline < 0 || 873 (lastScanline + width > length)) { 874 throw new ArrayIndexOutOfBoundsException(); 875 } 876 877 // Shaders are ignored when drawing bitmaps 878 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 879 nDrawBitmap(mRenderer, colors, offset, stride, x, y, 880 width, height, hasAlpha, nativePaint); 881 } 882 883 private static native void nDrawBitmap(long renderer, int[] colors, int offset, int stride, 884 float x, float y, int width, int height, boolean hasAlpha, long nativePaint); 885 886 @Override 887 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 888 int width, int height, boolean hasAlpha, Paint paint) { 889 // Shaders are ignored when drawing bitmaps 890 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 891 } 892 893 @Override 894 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 895 int vertOffset, int[] colors, int colorOffset, Paint paint) { 896 throwIfCannotDraw(bitmap); 897 if (meshWidth < 0 || meshHeight < 0 || vertOffset < 0 || colorOffset < 0) { 898 throw new ArrayIndexOutOfBoundsException(); 899 } 900 901 if (meshWidth == 0 || meshHeight == 0) { 902 return; 903 } 904 905 final int count = (meshWidth + 1) * (meshHeight + 1); 906 checkRange(verts.length, vertOffset, count * 2); 907 908 if (colors != null) { 909 checkRange(colors.length, colorOffset, count); 910 } 911 912 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 913 try { 914 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 915 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 916 verts, vertOffset, colors, colorOffset, nativePaint); 917 } finally { 918 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 919 } 920 } 921 922 private static native void nDrawBitmapMesh(long renderer, long bitmap, byte[] buffer, 923 int meshWidth, int meshHeight, float[] verts, int vertOffset, 924 int[] colors, int colorOffset, long paint); 925 926 @Override 927 public void drawCircle(float cx, float cy, float radius, Paint paint) { 928 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 929 try { 930 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 931 } finally { 932 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 933 } 934 } 935 936 private static native void nDrawCircle(long renderer, float cx, float cy, 937 float radius, long paint); 938 939 @Override 940 public void drawColor(int color) { 941 drawColor(color, PorterDuff.Mode.SRC_OVER); 942 } 943 944 @Override 945 public void drawColor(int color, PorterDuff.Mode mode) { 946 nDrawColor(mRenderer, color, mode.nativeInt); 947 } 948 949 private static native void nDrawColor(long renderer, int color, int mode); 950 951 @Override 952 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 953 float[] line = getLineStorage(); 954 line[0] = startX; 955 line[1] = startY; 956 line[2] = stopX; 957 line[3] = stopY; 958 drawLines(line, 0, 4, paint); 959 } 960 961 @Override 962 public void drawLines(float[] pts, int offset, int count, Paint paint) { 963 if (count < 4) return; 964 965 if ((offset | count) < 0 || offset + count > pts.length) { 966 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 967 } 968 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 969 try { 970 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 971 } finally { 972 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 973 } 974 } 975 976 private static native void nDrawLines(long renderer, float[] points, 977 int offset, int count, long paint); 978 979 @Override 980 public void drawLines(float[] pts, Paint paint) { 981 drawLines(pts, 0, pts.length, paint); 982 } 983 984 @Override 985 public void drawOval(RectF oval, Paint paint) { 986 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 987 try { 988 nDrawOval(mRenderer, oval.left, oval.top, oval.right, oval.bottom, paint.mNativePaint); 989 } finally { 990 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 991 } 992 } 993 994 private static native void nDrawOval(long renderer, float left, float top, 995 float right, float bottom, long paint); 996 997 @Override 998 public void drawPaint(Paint paint) { 999 final Rect r = getInternalClipBounds(); 1000 nGetClipBounds(mRenderer, r); 1001 drawRect(r.left, r.top, r.right, r.bottom, paint); 1002 } 1003 1004 @Override 1005 public void drawPath(Path path, Paint paint) { 1006 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 1007 try { 1008 if (path.isSimplePath) { 1009 if (path.rects != null) { 1010 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 1011 } 1012 } else { 1013 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 1014 } 1015 } finally { 1016 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1017 } 1018 } 1019 1020 private static native void nDrawPath(long renderer, long path, long paint); 1021 private static native void nDrawRects(long renderer, long region, long paint); 1022 1023 void drawRects(float[] rects, int count, Paint paint) { 1024 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 1025 try { 1026 nDrawRects(mRenderer, rects, count, paint.mNativePaint); 1027 } finally { 1028 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1029 } 1030 } 1031 1032 private static native void nDrawRects(long renderer, float[] rects, int count, long paint); 1033 1034 @Override 1035 public void drawPicture(Picture picture) { 1036 if (picture.createdFromStream) { 1037 return; 1038 } 1039 1040 picture.endRecording(); 1041 // TODO: Implement rendering 1042 } 1043 1044 @Override 1045 public void drawPicture(Picture picture, Rect dst) { 1046 if (picture.createdFromStream) { 1047 return; 1048 } 1049 1050 save(); 1051 translate(dst.left, dst.top); 1052 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1053 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 1054 } 1055 drawPicture(picture); 1056 restore(); 1057 } 1058 1059 @Override 1060 public void drawPicture(Picture picture, RectF dst) { 1061 if (picture.createdFromStream) { 1062 return; 1063 } 1064 1065 save(); 1066 translate(dst.left, dst.top); 1067 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1068 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 1069 } 1070 drawPicture(picture); 1071 restore(); 1072 } 1073 1074 @Override 1075 public void drawPoint(float x, float y, Paint paint) { 1076 float[] point = getPointStorage(); 1077 point[0] = x; 1078 point[1] = y; 1079 drawPoints(point, 0, 2, paint); 1080 } 1081 1082 @Override 1083 public void drawPoints(float[] pts, Paint paint) { 1084 drawPoints(pts, 0, pts.length, paint); 1085 } 1086 1087 @Override 1088 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 1089 if (count < 2) return; 1090 1091 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 1092 try { 1093 nDrawPoints(mRenderer, pts, offset, count, paint.mNativePaint); 1094 } finally { 1095 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1096 } 1097 } 1098 1099 private static native void nDrawPoints(long renderer, float[] points, 1100 int offset, int count, long paint); 1101 1102 @SuppressWarnings("deprecation") 1103 @Override 1104 public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 1105 if (index < 0 || index + count > text.length || count * 2 > pos.length) { 1106 throw new IndexOutOfBoundsException(); 1107 } 1108 1109 int modifiers = setupModifiers(paint); 1110 try { 1111 nDrawPosText(mRenderer, text, index, count, pos, paint.mNativePaint); 1112 } finally { 1113 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1114 } 1115 } 1116 1117 private static native void nDrawPosText(long renderer, char[] text, int index, int count, 1118 float[] pos, long paint); 1119 1120 @SuppressWarnings("deprecation") 1121 @Override 1122 public void drawPosText(String text, float[] pos, Paint paint) { 1123 if (text.length() * 2 > pos.length) { 1124 throw new ArrayIndexOutOfBoundsException(); 1125 } 1126 1127 int modifiers = setupModifiers(paint); 1128 try { 1129 nDrawPosText(mRenderer, text, 0, text.length(), pos, paint.mNativePaint); 1130 } finally { 1131 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1132 } 1133 } 1134 1135 private static native void nDrawPosText(long renderer, String text, int start, int end, 1136 float[] pos, long paint); 1137 1138 @Override 1139 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 1140 if (left == right || top == bottom) return; 1141 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 1142 try { 1143 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 1144 } finally { 1145 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1146 } 1147 } 1148 1149 private static native void nDrawRect(long renderer, float left, float top, 1150 float right, float bottom, long paint); 1151 1152 @Override 1153 public void drawRect(Rect r, Paint paint) { 1154 drawRect(r.left, r.top, r.right, r.bottom, paint); 1155 } 1156 1157 @Override 1158 public void drawRect(RectF r, Paint paint) { 1159 drawRect(r.left, r.top, r.right, r.bottom, paint); 1160 } 1161 1162 @Override 1163 public void drawRGB(int r, int g, int b) { 1164 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 1165 } 1166 1167 @Override 1168 public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 1169 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 1170 try { 1171 nDrawRoundRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 1172 rx, ry, paint.mNativePaint); 1173 } finally { 1174 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1175 } 1176 } 1177 1178 private static native void nDrawRoundRect(long renderer, float left, float top, 1179 float right, float bottom, float rx, float y, long paint); 1180 1181 @Override 1182 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 1183 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 1184 throw new IndexOutOfBoundsException(); 1185 } 1186 1187 int modifiers = setupModifiers(paint); 1188 try { 1189 nDrawText(mRenderer, text, index, count, x, y, paint.mBidiFlags, paint.mNativePaint); 1190 } finally { 1191 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1192 } 1193 } 1194 1195 private static native void nDrawText(long renderer, char[] text, int index, int count, 1196 float x, float y, int bidiFlags, long paint); 1197 1198 @Override 1199 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 1200 int modifiers = setupModifiers(paint); 1201 try { 1202 if (text instanceof String || text instanceof SpannedString || 1203 text instanceof SpannableString) { 1204 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 1205 paint.mNativePaint); 1206 } else if (text instanceof GraphicsOperations) { 1207 ((GraphicsOperations) text).drawText(this, start, end, x, y, 1208 paint); 1209 } else { 1210 char[] buf = TemporaryBuffer.obtain(end - start); 1211 TextUtils.getChars(text, start, end, buf, 0); 1212 nDrawText(mRenderer, buf, 0, end - start, x, y, 1213 paint.mBidiFlags, paint.mNativePaint); 1214 TemporaryBuffer.recycle(buf); 1215 } 1216 } finally { 1217 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1218 } 1219 } 1220 1221 @Override 1222 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 1223 if ((start | end | (end - start) | (text.length() - end)) < 0) { 1224 throw new IndexOutOfBoundsException(); 1225 } 1226 1227 int modifiers = setupModifiers(paint); 1228 try { 1229 nDrawText(mRenderer, text, start, end, x, y, paint.mBidiFlags, paint.mNativePaint); 1230 } finally { 1231 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1232 } 1233 } 1234 1235 private static native void nDrawText(long renderer, String text, int start, int end, 1236 float x, float y, int bidiFlags, long paint); 1237 1238 @Override 1239 public void drawText(String text, float x, float y, Paint paint) { 1240 int modifiers = setupModifiers(paint); 1241 try { 1242 nDrawText(mRenderer, text, 0, text.length(), x, y, paint.mBidiFlags, 1243 paint.mNativePaint); 1244 } finally { 1245 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1246 } 1247 } 1248 1249 @Override 1250 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 1251 float vOffset, Paint paint) { 1252 if (index < 0 || index + count > text.length) { 1253 throw new ArrayIndexOutOfBoundsException(); 1254 } 1255 1256 int modifiers = setupModifiers(paint); 1257 try { 1258 nDrawTextOnPath(mRenderer, text, index, count, path.mNativePath, hOffset, vOffset, 1259 paint.mBidiFlags, paint.mNativePaint); 1260 } finally { 1261 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1262 } 1263 } 1264 1265 private static native void nDrawTextOnPath(long renderer, char[] text, int index, int count, 1266 long path, float hOffset, float vOffset, int bidiFlags, long nativePaint); 1267 1268 @Override 1269 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 1270 if (text.length() == 0) return; 1271 1272 int modifiers = setupModifiers(paint); 1273 try { 1274 nDrawTextOnPath(mRenderer, text, 0, text.length(), path.mNativePath, hOffset, vOffset, 1275 paint.mBidiFlags, paint.mNativePaint); 1276 } finally { 1277 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1278 } 1279 } 1280 1281 private static native void nDrawTextOnPath(long renderer, String text, int start, int end, 1282 long path, float hOffset, float vOffset, int bidiFlags, long nativePaint); 1283 1284 @Override 1285 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 1286 float x, float y, int dir, Paint paint) { 1287 if ((index | count | text.length - index - count) < 0) { 1288 throw new IndexOutOfBoundsException(); 1289 } 1290 if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 1291 throw new IllegalArgumentException("Unknown direction: " + dir); 1292 } 1293 1294 int modifiers = setupModifiers(paint); 1295 try { 1296 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, dir, 1297 paint.mNativePaint); 1298 } finally { 1299 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1300 } 1301 } 1302 1303 private static native void nDrawTextRun(long renderer, char[] text, int index, int count, 1304 int contextIndex, int contextCount, float x, float y, int dir, long nativePaint); 1305 1306 @Override 1307 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 1308 float x, float y, int dir, Paint paint) { 1309 if ((start | end | end - start | text.length() - end) < 0) { 1310 throw new IndexOutOfBoundsException(); 1311 } 1312 1313 int modifiers = setupModifiers(paint); 1314 try { 1315 int flags = dir == 0 ? 0 : 1; 1316 if (text instanceof String || text instanceof SpannedString || 1317 text instanceof SpannableString) { 1318 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 1319 contextEnd, x, y, flags, paint.mNativePaint); 1320 } else if (text instanceof GraphicsOperations) { 1321 ((GraphicsOperations) text).drawTextRun(this, start, end, 1322 contextStart, contextEnd, x, y, flags, paint); 1323 } else { 1324 int contextLen = contextEnd - contextStart; 1325 int len = end - start; 1326 char[] buf = TemporaryBuffer.obtain(contextLen); 1327 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 1328 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 1329 x, y, flags, paint.mNativePaint); 1330 TemporaryBuffer.recycle(buf); 1331 } 1332 } finally { 1333 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1334 } 1335 } 1336 1337 private static native void nDrawTextRun(long renderer, String text, int start, int end, 1338 int contextStart, int contextEnd, float x, float y, int flags, long nativePaint); 1339 1340 @Override 1341 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 1342 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 1343 int indexOffset, int indexCount, Paint paint) { 1344 // TODO: Implement 1345 } 1346 1347 private int setupModifiers(Bitmap b, Paint paint) { 1348 if (b.getConfig() != Bitmap.Config.ALPHA_8) { 1349 return MODIFIER_NONE; 1350 } else { 1351 return setupModifiers(paint); 1352 } 1353 } 1354 1355 private int setupModifiers(Paint paint) { 1356 int modifiers = MODIFIER_NONE; 1357 1358 if (paint.hasShadow) { 1359 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 1360 paint.shadowColor); 1361 modifiers |= MODIFIER_SHADOW; 1362 } 1363 1364 final Shader shader = paint.getShader(); 1365 if (shader != null) { 1366 nSetupShader(mRenderer, shader.native_shader); 1367 modifiers |= MODIFIER_SHADER; 1368 } 1369 1370 return modifiers; 1371 } 1372 1373 private int setupModifiers(Paint paint, int flags) { 1374 int modifiers = MODIFIER_NONE; 1375 1376 if (paint.hasShadow && (flags & MODIFIER_SHADOW) != 0) { 1377 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 1378 paint.shadowColor); 1379 modifiers |= MODIFIER_SHADOW; 1380 } 1381 1382 final Shader shader = paint.getShader(); 1383 if (shader != null && (flags & MODIFIER_SHADER) != 0) { 1384 nSetupShader(mRenderer, shader.native_shader); 1385 modifiers |= MODIFIER_SHADER; 1386 } 1387 1388 return modifiers; 1389 } 1390 1391 private static native void nSetupShader(long renderer, long shader); 1392 private static native void nSetupShadow(long renderer, float radius, 1393 float dx, float dy, int color); 1394 1395 private static native void nResetModifiers(long renderer, int modifiers); 1396} 1397