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 17 package android.view; 18 19 import android.graphics.Bitmap; 20 import android.graphics.Canvas; 21 import android.graphics.ColorFilter; 22 import android.graphics.DrawFilter; 23 import android.graphics.Matrix; 24 import android.graphics.Paint; 25 import android.graphics.PaintFlagsDrawFilter; 26 import android.graphics.Path; 27 import android.graphics.Picture; 28 import android.graphics.PorterDuff; 29 import android.graphics.Rect; 30 import android.graphics.RectF; 31 import android.graphics.Region; 32 import android.graphics.Shader; 33 import android.graphics.SurfaceTexture; 34 import android.graphics.TemporaryBuffer; 35 import android.text.GraphicsOperations; 36 import android.text.SpannableString; 37 import android.text.SpannedString; 38 import android.text.TextUtils; 39 40 /** 41 * An implementation of Canvas on top of OpenGL ES 2.0. 42 */ 43 class GLES20Canvas extends HardwareCanvas { 44 // Must match modifiers used in the JNI layer 45 private static final int MODIFIER_NONE = 0; 46 private static final int MODIFIER_SHADOW = 1; 47 private static final int MODIFIER_SHADER = 2; 48 private static final int MODIFIER_COLOR_FILTER = 4; 49 50 private final boolean mOpaque; 51 private int 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 final float[] mPoint = new float[2]; 62 private final float[] mLine = new float[4]; 63 64 private final Rect mClipBounds = new Rect(); 65 private final RectF mPathBounds = new RectF(); 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(int 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 int nCreateRenderer(); 125 private static native int nCreateLayerRenderer(int layer); 126 private static native int nCreateDisplayListRenderer(); 127 private static native void nResetDisplayListRenderer(int renderer); 128 private static native void nDestroyRenderer(int renderer); 129 130 private static final class CanvasFinalizer { 131 private final int mRenderer; 132 133 public CanvasFinalizer(int 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 /////////////////////////////////////////////////////////////////////////// 148 // Hardware layers 149 /////////////////////////////////////////////////////////////////////////// 150 151 static native int nCreateTextureLayer(boolean opaque, int[] layerInfo); 152 static native int nCreateLayer(int width, int height, boolean isOpaque, int[] layerInfo); 153 static native void nResizeLayer(int layerId, int width, int height, int[] layerInfo); 154 static native void nUpdateTextureLayer(int layerId, int width, int height, boolean opaque, 155 SurfaceTexture surface); 156 static native void nSetTextureLayerTransform(int layerId, int matrix); 157 static native void nDestroyLayer(int layerId); 158 static native void nDestroyLayerDeferred(int layerId); 159 static native void nFlushLayer(int layerId); 160 static native void nUpdateRenderLayer(int layerId, int renderer, int displayList, 161 int left, int top, int right, int bottom); 162 static native boolean nCopyLayer(int layerId, int bitmap); 163 164 /////////////////////////////////////////////////////////////////////////// 165 // Canvas management 166 /////////////////////////////////////////////////////////////////////////// 167 168 @Override 169 public boolean isOpaque() { 170 return mOpaque; 171 } 172 173 @Override 174 public int getWidth() { 175 return mWidth; 176 } 177 178 @Override 179 public int getHeight() { 180 return mHeight; 181 } 182 183 @Override 184 public int getMaximumBitmapWidth() { 185 return nGetMaximumTextureWidth(); 186 } 187 188 @Override 189 public int getMaximumBitmapHeight() { 190 return nGetMaximumTextureHeight(); 191 } 192 193 private static native int nGetMaximumTextureWidth(); 194 private static native int nGetMaximumTextureHeight(); 195 196 /** 197 * Returns the native OpenGLRenderer object. 198 */ 199 int getRenderer() { 200 return mRenderer; 201 } 202 203 /////////////////////////////////////////////////////////////////////////// 204 // Setup 205 /////////////////////////////////////////////////////////////////////////// 206 207 @Override 208 public void setViewport(int width, int height) { 209 mWidth = width; 210 mHeight = height; 211 212 nSetViewport(mRenderer, width, height); 213 } 214 215 private static native void nSetViewport(int renderer, int width, int height); 216 217 @Override 218 public int onPreDraw(Rect dirty) { 219 if (dirty != null) { 220 return nPrepareDirty(mRenderer, dirty.left, dirty.top, dirty.right, dirty.bottom, 221 mOpaque); 222 } else { 223 return nPrepare(mRenderer, mOpaque); 224 } 225 } 226 227 private static native int nPrepare(int renderer, boolean opaque); 228 private static native int nPrepareDirty(int renderer, int left, int top, int right, int bottom, 229 boolean opaque); 230 231 @Override 232 public void onPostDraw() { 233 nFinish(mRenderer); 234 } 235 236 private static native void nFinish(int renderer); 237 238 /** 239 * Returns the size of the stencil buffer required by the underlying 240 * implementation. 241 * 242 * @return The minimum number of bits the stencil buffer must. Always >= 0. 243 * 244 * @hide 245 */ 246 public static int getStencilSize() { 247 return nGetStencilSize(); 248 } 249 250 private static native int nGetStencilSize(); 251 252 /////////////////////////////////////////////////////////////////////////// 253 // Functor 254 /////////////////////////////////////////////////////////////////////////// 255 256 @Override 257 public int callDrawGLFunction(int drawGLFunction) { 258 return nCallDrawGLFunction(mRenderer, drawGLFunction); 259 } 260 261 private static native int nCallDrawGLFunction(int renderer, int drawGLFunction); 262 263 @Override 264 public int invokeFunctors(Rect dirty) { 265 return nInvokeFunctors(mRenderer, dirty); 266 } 267 268 private static native int nInvokeFunctors(int renderer, Rect dirty); 269 270 @Override 271 public void detachFunctor(int functor) { 272 nDetachFunctor(mRenderer, functor); 273 } 274 275 private static native void nDetachFunctor(int renderer, int functor); 276 277 @Override 278 public void attachFunctor(int functor) { 279 nAttachFunctor(mRenderer, functor); 280 } 281 282 private static native void nAttachFunctor(int renderer, int functor); 283 284 /////////////////////////////////////////////////////////////////////////// 285 // Memory 286 /////////////////////////////////////////////////////////////////////////// 287 288 /** 289 * Must match Caches::FlushMode values 290 * 291 * @see #flushCaches(int) 292 */ 293 public static final int FLUSH_CACHES_LAYERS = 0; 294 295 /** 296 * Must match Caches::FlushMode values 297 * 298 * @see #flushCaches(int) 299 */ 300 public static final int FLUSH_CACHES_MODERATE = 1; 301 302 /** 303 * Must match Caches::FlushMode values 304 * 305 * @see #flushCaches(int) 306 */ 307 public static final int FLUSH_CACHES_FULL = 2; 308 309 /** 310 * Flush caches to reclaim as much memory as possible. The amount of memory 311 * to reclaim is indicate by the level parameter. 312 * 313 * The level can be one of {@link #FLUSH_CACHES_MODERATE} or 314 * {@link #FLUSH_CACHES_FULL}. 315 * 316 * @param level Hint about the amount of memory to reclaim 317 * 318 * @hide 319 */ 320 public static void flushCaches(int level) { 321 nFlushCaches(level); 322 } 323 324 private static native void nFlushCaches(int level); 325 326 /** 327 * Release all resources associated with the underlying caches. This should 328 * only be called after a full flushCaches(). 329 * 330 * @hide 331 */ 332 public static void terminateCaches() { 333 nTerminateCaches(); 334 } 335 336 private static native void nTerminateCaches(); 337 338 /** 339 * @hide 340 */ 341 public static void initCaches() { 342 nInitCaches(); 343 } 344 345 private static native void nInitCaches(); 346 347 /////////////////////////////////////////////////////////////////////////// 348 // Display list 349 /////////////////////////////////////////////////////////////////////////// 350 351 int getDisplayList(int displayList) { 352 return nGetDisplayList(mRenderer, displayList); 353 } 354 355 private static native int nGetDisplayList(int renderer, int displayList); 356 357 static void destroyDisplayList(int displayList) { 358 nDestroyDisplayList(displayList); 359 } 360 361 private static native void nDestroyDisplayList(int displayList); 362 363 static int getDisplayListSize(int displayList) { 364 return nGetDisplayListSize(displayList); 365 } 366 367 private static native int nGetDisplayListSize(int displayList); 368 369 static void setDisplayListName(int displayList, String name) { 370 nSetDisplayListName(displayList, name); 371 } 372 373 private static native void nSetDisplayListName(int displayList, String name); 374 375 @Override 376 public int drawDisplayList(DisplayList displayList, Rect dirty, int flags) { 377 return nDrawDisplayList(mRenderer, ((GLES20DisplayList) displayList).getNativeDisplayList(), 378 dirty, flags); 379 } 380 381 private static native int nDrawDisplayList(int renderer, int displayList, 382 Rect dirty, int flags); 383 384 @Override 385 void outputDisplayList(DisplayList displayList) { 386 nOutputDisplayList(mRenderer, ((GLES20DisplayList) displayList).getNativeDisplayList()); 387 } 388 389 private static native void nOutputDisplayList(int renderer, int displayList); 390 391 /////////////////////////////////////////////////////////////////////////// 392 // Hardware layer 393 /////////////////////////////////////////////////////////////////////////// 394 395 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 396 final GLES20Layer glLayer = (GLES20Layer) layer; 397 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 398 try { 399 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 400 nDrawLayer(mRenderer, glLayer.getLayer(), x, y, nativePaint); 401 } finally { 402 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 403 } 404 } 405 406 private static native void nDrawLayer(int renderer, int layer, float x, float y, int paint); 407 408 void interrupt() { 409 nInterrupt(mRenderer); 410 } 411 412 void resume() { 413 nResume(mRenderer); 414 } 415 416 private static native void nInterrupt(int renderer); 417 private static native void nResume(int renderer); 418 419 /////////////////////////////////////////////////////////////////////////// 420 // Clipping 421 /////////////////////////////////////////////////////////////////////////// 422 423 @Override 424 public boolean clipPath(Path path) { 425 // TODO: Implement 426 path.computeBounds(mPathBounds, true); 427 return nClipRect(mRenderer, mPathBounds.left, mPathBounds.top, 428 mPathBounds.right, mPathBounds.bottom, Region.Op.INTERSECT.nativeInt); 429 } 430 431 @Override 432 public boolean clipPath(Path path, Region.Op op) { 433 // TODO: Implement 434 path.computeBounds(mPathBounds, true); 435 return nClipRect(mRenderer, mPathBounds.left, mPathBounds.top, 436 mPathBounds.right, mPathBounds.bottom, op.nativeInt); 437 } 438 439 @Override 440 public boolean clipRect(float left, float top, float right, float bottom) { 441 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 442 } 443 444 private static native boolean nClipRect(int renderer, float left, float top, 445 float right, float bottom, int op); 446 447 @Override 448 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 449 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 450 } 451 452 @Override 453 public boolean clipRect(int left, int top, int right, int bottom) { 454 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 455 } 456 457 private static native boolean nClipRect(int renderer, int left, int top, int right, int bottom, 458 int op); 459 460 @Override 461 public boolean clipRect(Rect rect) { 462 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 463 Region.Op.INTERSECT.nativeInt); 464 } 465 466 @Override 467 public boolean clipRect(Rect rect, Region.Op op) { 468 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 469 } 470 471 @Override 472 public boolean clipRect(RectF rect) { 473 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 474 Region.Op.INTERSECT.nativeInt); 475 } 476 477 @Override 478 public boolean clipRect(RectF rect, Region.Op op) { 479 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 480 } 481 482 @Override 483 public boolean clipRegion(Region region) { 484 // TODO: Implement 485 region.getBounds(mClipBounds); 486 return nClipRect(mRenderer, mClipBounds.left, mClipBounds.top, 487 mClipBounds.right, mClipBounds.bottom, Region.Op.INTERSECT.nativeInt); 488 } 489 490 @Override 491 public boolean clipRegion(Region region, Region.Op op) { 492 // TODO: Implement 493 region.getBounds(mClipBounds); 494 return nClipRect(mRenderer, mClipBounds.left, mClipBounds.top, 495 mClipBounds.right, mClipBounds.bottom, op.nativeInt); 496 } 497 498 @Override 499 public boolean getClipBounds(Rect bounds) { 500 return nGetClipBounds(mRenderer, bounds); 501 } 502 503 private static native boolean nGetClipBounds(int renderer, Rect bounds); 504 505 @Override 506 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 507 return nQuickReject(mRenderer, left, top, right, bottom, type.nativeInt); 508 } 509 510 private static native boolean nQuickReject(int renderer, float left, float top, 511 float right, float bottom, int edge); 512 513 @Override 514 public boolean quickReject(Path path, EdgeType type) { 515 path.computeBounds(mPathBounds, true); 516 return nQuickReject(mRenderer, mPathBounds.left, mPathBounds.top, 517 mPathBounds.right, mPathBounds.bottom, type.nativeInt); 518 } 519 520 @Override 521 public boolean quickReject(RectF rect, EdgeType type) { 522 return nQuickReject(mRenderer, rect.left, rect.top, rect.right, rect.bottom, type.nativeInt); 523 } 524 525 /////////////////////////////////////////////////////////////////////////// 526 // Transformations 527 /////////////////////////////////////////////////////////////////////////// 528 529 @Override 530 public void translate(float dx, float dy) { 531 if (dx != 0.0f || dy != 0.0f) nTranslate(mRenderer, dx, dy); 532 } 533 534 private static native void nTranslate(int renderer, float dx, float dy); 535 536 @Override 537 public void skew(float sx, float sy) { 538 nSkew(mRenderer, sx, sy); 539 } 540 541 private static native void nSkew(int renderer, float sx, float sy); 542 543 @Override 544 public void rotate(float degrees) { 545 nRotate(mRenderer, degrees); 546 } 547 548 private static native void nRotate(int renderer, float degrees); 549 550 @Override 551 public void scale(float sx, float sy) { 552 nScale(mRenderer, sx, sy); 553 } 554 555 private static native void nScale(int renderer, float sx, float sy); 556 557 @Override 558 public void setMatrix(Matrix matrix) { 559 nSetMatrix(mRenderer, matrix == null ? 0 : matrix.native_instance); 560 } 561 562 private static native void nSetMatrix(int renderer, int matrix); 563 564 @SuppressWarnings("deprecation") 565 @Override 566 public void getMatrix(Matrix matrix) { 567 nGetMatrix(mRenderer, matrix.native_instance); 568 } 569 570 private static native void nGetMatrix(int renderer, int matrix); 571 572 @Override 573 public void concat(Matrix matrix) { 574 nConcatMatrix(mRenderer, matrix.native_instance); 575 } 576 577 private static native void nConcatMatrix(int renderer, int matrix); 578 579 /////////////////////////////////////////////////////////////////////////// 580 // State management 581 /////////////////////////////////////////////////////////////////////////// 582 583 @Override 584 public int save() { 585 return nSave(mRenderer, Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG); 586 } 587 588 @Override 589 public int save(int saveFlags) { 590 return nSave(mRenderer, saveFlags); 591 } 592 593 private static native int nSave(int renderer, int flags); 594 595 @Override 596 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 597 if (bounds != null) { 598 return saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, paint, saveFlags); 599 } 600 601 int count; 602 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 603 try { 604 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 605 count = nSaveLayer(mRenderer, nativePaint, saveFlags); 606 } finally { 607 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 608 } 609 return count; 610 } 611 612 private static native int nSaveLayer(int renderer, int paint, int saveFlags); 613 614 @Override 615 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 616 int saveFlags) { 617 if (left < right && top < bottom) { 618 int count; 619 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 620 try { 621 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 622 count = nSaveLayer(mRenderer, left, top, right, bottom, nativePaint, saveFlags); 623 } finally { 624 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 625 } 626 return count; 627 } 628 return save(saveFlags); 629 } 630 631 private static native int nSaveLayer(int renderer, float left, float top, 632 float right, float bottom, int paint, int saveFlags); 633 634 @Override 635 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 636 if (bounds != null) { 637 return saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 638 alpha, saveFlags); 639 } 640 return nSaveLayerAlpha(mRenderer, alpha, saveFlags); 641 } 642 643 private static native int nSaveLayerAlpha(int renderer, int alpha, int saveFlags); 644 645 @Override 646 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 647 int saveFlags) { 648 if (left < right && top < bottom) { 649 return nSaveLayerAlpha(mRenderer, left, top, right, bottom, alpha, saveFlags); 650 } 651 return save(saveFlags); 652 } 653 654 private static native int nSaveLayerAlpha(int renderer, float left, float top, float right, 655 float bottom, int alpha, int saveFlags); 656 657 @Override 658 public void restore() { 659 nRestore(mRenderer); 660 } 661 662 private static native void nRestore(int renderer); 663 664 @Override 665 public void restoreToCount(int saveCount) { 666 nRestoreToCount(mRenderer, saveCount); 667 } 668 669 private static native void nRestoreToCount(int renderer, int saveCount); 670 671 @Override 672 public int getSaveCount() { 673 return nGetSaveCount(mRenderer); 674 } 675 676 private static native int nGetSaveCount(int renderer); 677 678 /////////////////////////////////////////////////////////////////////////// 679 // Filtering 680 /////////////////////////////////////////////////////////////////////////// 681 682 @Override 683 public void setDrawFilter(DrawFilter filter) { 684 mFilter = filter; 685 if (filter == null) { 686 nResetPaintFilter(mRenderer); 687 } else if (filter instanceof PaintFlagsDrawFilter) { 688 PaintFlagsDrawFilter flagsFilter = (PaintFlagsDrawFilter) filter; 689 nSetupPaintFilter(mRenderer, flagsFilter.clearBits, flagsFilter.setBits); 690 } 691 } 692 693 private static native void nResetPaintFilter(int renderer); 694 private static native void nSetupPaintFilter(int renderer, int clearBits, int setBits); 695 696 @Override 697 public DrawFilter getDrawFilter() { 698 return mFilter; 699 } 700 701 /////////////////////////////////////////////////////////////////////////// 702 // Drawing 703 /////////////////////////////////////////////////////////////////////////// 704 705 @Override 706 public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 707 Paint paint) { 708 int modifiers = setupModifiers(paint, MODIFIER_COLOR_FILTER | MODIFIER_SHADER); 709 try { 710 nDrawArc(mRenderer, oval.left, oval.top, oval.right, oval.bottom, 711 startAngle, sweepAngle, useCenter, paint.mNativePaint); 712 } finally { 713 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 714 } 715 } 716 717 private static native void nDrawArc(int renderer, float left, float top, 718 float right, float bottom, float startAngle, float sweepAngle, 719 boolean useCenter, int paint); 720 721 @Override 722 public void drawARGB(int a, int r, int g, int b) { 723 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 724 } 725 726 @Override 727 public void drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint) { 728 if (bitmap.isRecycled()) throw new IllegalArgumentException("Cannot draw recycled bitmaps"); 729 // Shaders are ignored when drawing patches 730 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 731 try { 732 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 733 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, chunks, 734 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 735 } finally { 736 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 737 } 738 } 739 740 private static native void nDrawPatch(int renderer, int bitmap, byte[] buffer, byte[] chunks, 741 float left, float top, float right, float bottom, int paint); 742 743 @Override 744 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 745 if (bitmap.isRecycled()) throw new IllegalArgumentException("Cannot draw recycled bitmaps"); 746 // Shaders are ignored when drawing bitmaps 747 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 748 try { 749 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 750 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 751 } finally { 752 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 753 } 754 } 755 756 private static native void nDrawBitmap( 757 int renderer, int bitmap, byte[] buffer, float left, float top, int paint); 758 759 @Override 760 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 761 if (bitmap.isRecycled()) throw new IllegalArgumentException("Cannot draw recycled bitmaps"); 762 // Shaders are ignored when drawing bitmaps 763 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 764 try { 765 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 766 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 767 matrix.native_instance, nativePaint); 768 } finally { 769 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 770 } 771 } 772 773 private static native void nDrawBitmap(int renderer, int bitmap, byte[] buff, 774 int matrix, int paint); 775 776 @Override 777 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 778 if (bitmap.isRecycled()) throw new IllegalArgumentException("Cannot draw recycled bitmaps"); 779 // Shaders are ignored when drawing bitmaps 780 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 781 try { 782 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 783 784 int left, top, right, bottom; 785 if (src == null) { 786 left = top = 0; 787 right = bitmap.getWidth(); 788 bottom = bitmap.getHeight(); 789 } else { 790 left = src.left; 791 right = src.right; 792 top = src.top; 793 bottom = src.bottom; 794 } 795 796 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 797 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 798 } finally { 799 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 800 } 801 } 802 803 @Override 804 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 805 if (bitmap.isRecycled()) throw new IllegalArgumentException("Cannot draw recycled bitmaps"); 806 // Shaders are ignored when drawing bitmaps 807 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 808 try { 809 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 810 811 float left, top, right, bottom; 812 if (src == null) { 813 left = top = 0; 814 right = bitmap.getWidth(); 815 bottom = bitmap.getHeight(); 816 } else { 817 left = src.left; 818 right = src.right; 819 top = src.top; 820 bottom = src.bottom; 821 } 822 823 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 824 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 825 } finally { 826 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 827 } 828 } 829 830 private static native void nDrawBitmap(int renderer, int bitmap, byte[] buffer, 831 float srcLeft, float srcTop, float srcRight, float srcBottom, 832 float left, float top, float right, float bottom, int paint); 833 834 @Override 835 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 836 int width, int height, boolean hasAlpha, Paint paint) { 837 if (width < 0) { 838 throw new IllegalArgumentException("width must be >= 0"); 839 } 840 841 if (height < 0) { 842 throw new IllegalArgumentException("height must be >= 0"); 843 } 844 845 if (Math.abs(stride) < width) { 846 throw new IllegalArgumentException("abs(stride) must be >= width"); 847 } 848 849 int lastScanline = offset + (height - 1) * stride; 850 int length = colors.length; 851 852 if (offset < 0 || (offset + width > length) || lastScanline < 0 || 853 (lastScanline + width > length)) { 854 throw new ArrayIndexOutOfBoundsException(); 855 } 856 857 // Shaders are ignored when drawing bitmaps 858 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 859 try { 860 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 861 nDrawBitmap(mRenderer, colors, offset, stride, x, y, 862 width, height, hasAlpha, nativePaint); 863 } finally { 864 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 865 } 866 } 867 868 private static native void nDrawBitmap(int renderer, int[] colors, int offset, int stride, 869 float x, float y, int width, int height, boolean hasAlpha, int nativePaint); 870 871 @Override 872 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 873 int width, int height, boolean hasAlpha, Paint paint) { 874 // Shaders are ignored when drawing bitmaps 875 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 876 } 877 878 @Override 879 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 880 int vertOffset, int[] colors, int colorOffset, Paint paint) { 881 if (bitmap.isRecycled()) throw new IllegalArgumentException("Cannot draw recycled bitmaps"); 882 if (meshWidth < 0 || meshHeight < 0 || vertOffset < 0 || colorOffset < 0) { 883 throw new ArrayIndexOutOfBoundsException(); 884 } 885 886 if (meshWidth == 0 || meshHeight == 0) { 887 return; 888 } 889 890 final int count = (meshWidth + 1) * (meshHeight + 1); 891 checkRange(verts.length, vertOffset, count * 2); 892 893 // TODO: Colors are ignored for now 894 colors = null; 895 colorOffset = 0; 896 897 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 898 try { 899 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 900 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 901 verts, vertOffset, colors, colorOffset, nativePaint); 902 } finally { 903 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 904 } 905 } 906 907 private static native void nDrawBitmapMesh(int renderer, int bitmap, byte[] buffer, 908 int meshWidth, int meshHeight, float[] verts, int vertOffset, 909 int[] colors, int colorOffset, int paint); 910 911 @Override 912 public void drawCircle(float cx, float cy, float radius, Paint paint) { 913 int modifiers = setupModifiers(paint, MODIFIER_COLOR_FILTER | MODIFIER_SHADER); 914 try { 915 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 916 } finally { 917 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 918 } 919 } 920 921 private static native void nDrawCircle(int renderer, float cx, float cy, 922 float radius, int paint); 923 924 @Override 925 public void drawColor(int color) { 926 drawColor(color, PorterDuff.Mode.SRC_OVER); 927 } 928 929 @Override 930 public void drawColor(int color, PorterDuff.Mode mode) { 931 nDrawColor(mRenderer, color, mode.nativeInt); 932 } 933 934 private static native void nDrawColor(int renderer, int color, int mode); 935 936 @Override 937 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 938 mLine[0] = startX; 939 mLine[1] = startY; 940 mLine[2] = stopX; 941 mLine[3] = stopY; 942 drawLines(mLine, 0, 4, paint); 943 } 944 945 @Override 946 public void drawLines(float[] pts, int offset, int count, Paint paint) { 947 if ((offset | count) < 0 || offset + count > pts.length) { 948 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 949 } 950 int modifiers = setupModifiers(paint, MODIFIER_COLOR_FILTER | MODIFIER_SHADER); 951 try { 952 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 953 } finally { 954 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 955 } 956 } 957 958 private static native void nDrawLines(int renderer, float[] points, 959 int offset, int count, int paint); 960 961 @Override 962 public void drawLines(float[] pts, Paint paint) { 963 drawLines(pts, 0, pts.length, paint); 964 } 965 966 @Override 967 public void drawOval(RectF oval, Paint paint) { 968 int modifiers = setupModifiers(paint, MODIFIER_COLOR_FILTER | MODIFIER_SHADER); 969 try { 970 nDrawOval(mRenderer, oval.left, oval.top, oval.right, oval.bottom, paint.mNativePaint); 971 } finally { 972 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 973 } 974 } 975 976 private static native void nDrawOval(int renderer, float left, float top, 977 float right, float bottom, int paint); 978 979 @Override 980 public void drawPaint(Paint paint) { 981 final Rect r = mClipBounds; 982 nGetClipBounds(mRenderer, r); 983 drawRect(r.left, r.top, r.right, r.bottom, paint); 984 } 985 986 @Override 987 public void drawPath(Path path, Paint paint) { 988 int modifiers = setupModifiers(paint, MODIFIER_COLOR_FILTER | MODIFIER_SHADER); 989 try { 990 if (path.isSimplePath) { 991 if (path.rects != null) { 992 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 993 } 994 } else { 995 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 996 } 997 } finally { 998 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 999 } 1000 } 1001 1002 private static native void nDrawPath(int renderer, int path, int paint); 1003 private static native void nDrawRects(int renderer, int region, int paint); 1004 1005 @Override 1006 public void drawPicture(Picture picture) { 1007 if (picture.createdFromStream) { 1008 return; 1009 } 1010 1011 picture.endRecording(); 1012 // TODO: Implement rendering 1013 } 1014 1015 @Override 1016 public void drawPicture(Picture picture, Rect dst) { 1017 if (picture.createdFromStream) { 1018 return; 1019 } 1020 1021 save(); 1022 translate(dst.left, dst.top); 1023 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1024 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 1025 } 1026 drawPicture(picture); 1027 restore(); 1028 } 1029 1030 @Override 1031 public void drawPicture(Picture picture, RectF dst) { 1032 if (picture.createdFromStream) { 1033 return; 1034 } 1035 1036 save(); 1037 translate(dst.left, dst.top); 1038 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1039 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 1040 } 1041 drawPicture(picture); 1042 restore(); 1043 } 1044 1045 @Override 1046 public void drawPoint(float x, float y, Paint paint) { 1047 mPoint[0] = x; 1048 mPoint[1] = y; 1049 drawPoints(mPoint, 0, 2, paint); 1050 } 1051 1052 @Override 1053 public void drawPoints(float[] pts, Paint paint) { 1054 drawPoints(pts, 0, pts.length, paint); 1055 } 1056 1057 @Override 1058 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 1059 int modifiers = setupModifiers(paint, MODIFIER_COLOR_FILTER | MODIFIER_SHADER); 1060 try { 1061 nDrawPoints(mRenderer, pts, offset, count, paint.mNativePaint); 1062 } finally { 1063 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1064 } 1065 } 1066 1067 private static native void nDrawPoints(int renderer, float[] points, 1068 int offset, int count, int paint); 1069 1070 @SuppressWarnings("deprecation") 1071 @Override 1072 public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 1073 if (index < 0 || index + count > text.length || count * 2 > pos.length) { 1074 throw new IndexOutOfBoundsException(); 1075 } 1076 1077 int modifiers = setupModifiers(paint); 1078 try { 1079 nDrawPosText(mRenderer, text, index, count, pos, paint.mNativePaint); 1080 } finally { 1081 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1082 } 1083 } 1084 1085 private static native void nDrawPosText(int renderer, char[] text, int index, int count, 1086 float[] pos, int paint); 1087 1088 @SuppressWarnings("deprecation") 1089 @Override 1090 public void drawPosText(String text, float[] pos, Paint paint) { 1091 if (text.length() * 2 > pos.length) { 1092 throw new ArrayIndexOutOfBoundsException(); 1093 } 1094 1095 int modifiers = setupModifiers(paint); 1096 try { 1097 nDrawPosText(mRenderer, text, 0, text.length(), pos, paint.mNativePaint); 1098 } finally { 1099 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1100 } 1101 } 1102 1103 private static native void nDrawPosText(int renderer, String text, int start, int end, 1104 float[] pos, int paint); 1105 1106 @Override 1107 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 1108 if (left == right || top == bottom) return; 1109 int modifiers = setupModifiers(paint, MODIFIER_COLOR_FILTER | MODIFIER_SHADER); 1110 try { 1111 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 1112 } finally { 1113 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1114 } 1115 } 1116 1117 private static native void nDrawRect(int renderer, float left, float top, 1118 float right, float bottom, int paint); 1119 1120 @Override 1121 public void drawRect(Rect r, Paint paint) { 1122 drawRect(r.left, r.top, r.right, r.bottom, paint); 1123 } 1124 1125 @Override 1126 public void drawRect(RectF r, Paint paint) { 1127 drawRect(r.left, r.top, r.right, r.bottom, paint); 1128 } 1129 1130 @Override 1131 public void drawRGB(int r, int g, int b) { 1132 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 1133 } 1134 1135 @Override 1136 public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 1137 int modifiers = setupModifiers(paint, MODIFIER_COLOR_FILTER | MODIFIER_SHADER); 1138 try { 1139 nDrawRoundRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 1140 rx, ry, paint.mNativePaint); 1141 } finally { 1142 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1143 } 1144 } 1145 1146 private static native void nDrawRoundRect(int renderer, float left, float top, 1147 float right, float bottom, float rx, float y, int paint); 1148 1149 @Override 1150 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 1151 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 1152 throw new IndexOutOfBoundsException(); 1153 } 1154 1155 int modifiers = setupModifiers(paint); 1156 try { 1157 nDrawText(mRenderer, text, index, count, x, y, paint.mBidiFlags, paint.mNativePaint); 1158 } finally { 1159 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1160 } 1161 } 1162 1163 private static native void nDrawText(int renderer, char[] text, int index, int count, 1164 float x, float y, int bidiFlags, int paint); 1165 1166 @Override 1167 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 1168 int modifiers = setupModifiers(paint); 1169 try { 1170 if (text instanceof String || text instanceof SpannedString || 1171 text instanceof SpannableString) { 1172 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 1173 paint.mNativePaint); 1174 } else if (text instanceof GraphicsOperations) { 1175 ((GraphicsOperations) text).drawText(this, start, end, x, y, 1176 paint); 1177 } else { 1178 char[] buf = TemporaryBuffer.obtain(end - start); 1179 TextUtils.getChars(text, start, end, buf, 0); 1180 nDrawText(mRenderer, buf, 0, end - start, x, y, 1181 paint.mBidiFlags, paint.mNativePaint); 1182 TemporaryBuffer.recycle(buf); 1183 } 1184 } finally { 1185 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1186 } 1187 } 1188 1189 @Override 1190 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 1191 if ((start | end | (end - start) | (text.length() - end)) < 0) { 1192 throw new IndexOutOfBoundsException(); 1193 } 1194 1195 int modifiers = setupModifiers(paint); 1196 try { 1197 nDrawText(mRenderer, text, start, end, x, y, paint.mBidiFlags, paint.mNativePaint); 1198 } finally { 1199 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1200 } 1201 } 1202 1203 private static native void nDrawText(int renderer, String text, int start, int end, 1204 float x, float y, int bidiFlags, int paint); 1205 1206 @Override 1207 public void drawText(String text, float x, float y, Paint paint) { 1208 int modifiers = setupModifiers(paint); 1209 try { 1210 nDrawText(mRenderer, text, 0, text.length(), x, y, paint.mBidiFlags, 1211 paint.mNativePaint); 1212 } finally { 1213 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1214 } 1215 } 1216 1217 @Override 1218 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 1219 float vOffset, Paint paint) { 1220 if (index < 0 || index + count > text.length) { 1221 throw new ArrayIndexOutOfBoundsException(); 1222 } 1223 1224 int modifiers = setupModifiers(paint); 1225 try { 1226 nDrawTextOnPath(mRenderer, text, index, count, path.mNativePath, hOffset, vOffset, 1227 paint.mBidiFlags, paint.mNativePaint); 1228 } finally { 1229 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1230 } 1231 } 1232 1233 private static native void nDrawTextOnPath(int renderer, char[] text, int index, int count, 1234 int path, float hOffset, float vOffset, int bidiFlags, int nativePaint); 1235 1236 @Override 1237 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 1238 if (text.length() == 0) return; 1239 1240 int modifiers = setupModifiers(paint); 1241 try { 1242 nDrawTextOnPath(mRenderer, text, 0, text.length(), path.mNativePath, hOffset, vOffset, 1243 paint.mBidiFlags, paint.mNativePaint); 1244 } finally { 1245 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1246 } 1247 } 1248 1249 private static native void nDrawTextOnPath(int renderer, String text, int start, int end, 1250 int path, float hOffset, float vOffset, int bidiFlags, int nativePaint); 1251 1252 @Override 1253 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 1254 float x, float y, int dir, Paint paint) { 1255 if ((index | count | text.length - index - count) < 0) { 1256 throw new IndexOutOfBoundsException(); 1257 } 1258 if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 1259 throw new IllegalArgumentException("Unknown direction: " + dir); 1260 } 1261 1262 int modifiers = setupModifiers(paint); 1263 try { 1264 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, dir, 1265 paint.mNativePaint); 1266 } finally { 1267 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1268 } 1269 } 1270 1271 private static native void nDrawTextRun(int renderer, char[] text, int index, int count, 1272 int contextIndex, int contextCount, float x, float y, int dir, int nativePaint); 1273 1274 @Override 1275 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 1276 float x, float y, int dir, Paint paint) { 1277 if ((start | end | end - start | text.length() - end) < 0) { 1278 throw new IndexOutOfBoundsException(); 1279 } 1280 1281 int modifiers = setupModifiers(paint); 1282 try { 1283 int flags = dir == 0 ? 0 : 1; 1284 if (text instanceof String || text instanceof SpannedString || 1285 text instanceof SpannableString) { 1286 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 1287 contextEnd, x, y, flags, paint.mNativePaint); 1288 } else if (text instanceof GraphicsOperations) { 1289 ((GraphicsOperations) text).drawTextRun(this, start, end, 1290 contextStart, contextEnd, x, y, flags, paint); 1291 } else { 1292 int contextLen = contextEnd - contextStart; 1293 int len = end - start; 1294 char[] buf = TemporaryBuffer.obtain(contextLen); 1295 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 1296 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 1297 x, y, flags, paint.mNativePaint); 1298 TemporaryBuffer.recycle(buf); 1299 } 1300 } finally { 1301 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1302 } 1303 } 1304 1305 private static native void nDrawTextRun(int renderer, String text, int start, int end, 1306 int contextStart, int contextEnd, float x, float y, int flags, int nativePaint); 1307 1308 @Override 1309 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 1310 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 1311 int indexOffset, int indexCount, Paint paint) { 1312 // TODO: Implement 1313 } 1314 1315 private int setupModifiers(Bitmap b, Paint paint) { 1316 if (b.getConfig() != Bitmap.Config.ALPHA_8) { 1317 final ColorFilter filter = paint.getColorFilter(); 1318 if (filter != null) { 1319 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1320 return MODIFIER_COLOR_FILTER; 1321 } 1322 1323 return MODIFIER_NONE; 1324 } else { 1325 return setupModifiers(paint); 1326 } 1327 } 1328 1329 private int setupModifiers(Paint paint) { 1330 int modifiers = MODIFIER_NONE; 1331 1332 if (paint.hasShadow) { 1333 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 1334 paint.shadowColor); 1335 modifiers |= MODIFIER_SHADOW; 1336 } 1337 1338 final Shader shader = paint.getShader(); 1339 if (shader != null) { 1340 nSetupShader(mRenderer, shader.native_shader); 1341 modifiers |= MODIFIER_SHADER; 1342 } 1343 1344 final ColorFilter filter = paint.getColorFilter(); 1345 if (filter != null) { 1346 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1347 modifiers |= MODIFIER_COLOR_FILTER; 1348 } 1349 1350 return modifiers; 1351 } 1352 1353 private int setupModifiers(Paint paint, int flags) { 1354 int modifiers = MODIFIER_NONE; 1355 1356 if (paint.hasShadow && (flags & MODIFIER_SHADOW) != 0) { 1357 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 1358 paint.shadowColor); 1359 modifiers |= MODIFIER_SHADOW; 1360 } 1361 1362 final Shader shader = paint.getShader(); 1363 if (shader != null && (flags & MODIFIER_SHADER) != 0) { 1364 nSetupShader(mRenderer, shader.native_shader); 1365 modifiers |= MODIFIER_SHADER; 1366 } 1367 1368 final ColorFilter filter = paint.getColorFilter(); 1369 if (filter != null && (flags & MODIFIER_COLOR_FILTER) != 0) { 1370 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1371 modifiers |= MODIFIER_COLOR_FILTER; 1372 } 1373 1374 return modifiers; 1375 } 1376 1377 private int setupColorFilter(Paint paint) { 1378 final ColorFilter filter = paint.getColorFilter(); 1379 if (filter != null) { 1380 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1381 return MODIFIER_COLOR_FILTER; 1382 } 1383 return MODIFIER_NONE; 1384 } 1385 1386 private static native void nSetupShader(int renderer, int shader); 1387 private static native void nSetupColorFilter(int renderer, int colorFilter); 1388 private static native void nSetupShadow(int renderer, float radius, 1389 float dx, float dy, int color); 1390 1391 private static native void nResetModifiers(int renderer, int modifiers); 1392 } 1393