GLES20Canvas.java revision 832b151465ed81c43e59891d5eebe62128b21fbb
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.CanvasProperty; 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.TemporaryBuffer; 35import android.text.GraphicsOperations; 36import android.text.SpannableString; 37import android.text.SpannedString; 38import android.text.TextUtils; 39 40/** 41 * An implementation of Canvas on top of OpenGL ES 2.0. 42 */ 43class 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 49 private final boolean mOpaque; 50 protected long mRenderer; 51 52 // The native renderer will be destroyed when this object dies. 53 // DO NOT overwrite this reference once it is set. 54 @SuppressWarnings({"unused", "FieldCanBeLocal"}) 55 private CanvasFinalizer mFinalizer; 56 57 private int mWidth; 58 private int mHeight; 59 60 private float[] mPoint; 61 private float[] mLine; 62 63 private Rect mClipBounds; 64 private RectF mPathBounds; 65 66 private DrawFilter mFilter; 67 68 /////////////////////////////////////////////////////////////////////////// 69 // JNI 70 /////////////////////////////////////////////////////////////////////////// 71 72 private static native boolean nIsAvailable(); 73 private static boolean sIsAvailable = nIsAvailable(); 74 75 static boolean isAvailable() { 76 return sIsAvailable; 77 } 78 79 /////////////////////////////////////////////////////////////////////////// 80 // Constructors 81 /////////////////////////////////////////////////////////////////////////// 82 83 /** 84 * Creates a canvas to render directly on screen. 85 */ 86 GLES20Canvas(boolean translucent) { 87 this(false, translucent); 88 } 89 90 protected GLES20Canvas(boolean record, boolean translucent) { 91 mOpaque = !translucent; 92 93 if (record) { 94 mRenderer = nCreateDisplayListRenderer(); 95 } else { 96 mRenderer = nCreateRenderer(); 97 } 98 99 setupFinalizer(); 100 } 101 102 private void setupFinalizer() { 103 if (mRenderer == 0) { 104 throw new IllegalStateException("Could not create GLES20Canvas renderer"); 105 } else { 106 mFinalizer = new CanvasFinalizer(mRenderer); 107 } 108 } 109 110 private static native long nCreateRenderer(); 111 private static native long nCreateDisplayListRenderer(); 112 private static native void nResetDisplayListRenderer(long renderer); 113 private static native void nDestroyRenderer(long renderer); 114 115 private static final class CanvasFinalizer { 116 private final long mRenderer; 117 118 public CanvasFinalizer(long renderer) { 119 mRenderer = renderer; 120 } 121 122 @Override 123 protected void finalize() throws Throwable { 124 try { 125 nDestroyRenderer(mRenderer); 126 } finally { 127 super.finalize(); 128 } 129 } 130 } 131 132 public static void setProperty(String name, String value) { 133 nSetProperty(name, value); 134 } 135 136 private static native void nSetProperty(String name, String value); 137 138 /////////////////////////////////////////////////////////////////////////// 139 // Hardware layers 140 /////////////////////////////////////////////////////////////////////////// 141 142 @Override 143 void pushLayerUpdate(HardwareLayer layer) { 144 nPushLayerUpdate(mRenderer, layer.getLayer()); 145 } 146 147 @Override 148 void cancelLayerUpdate(HardwareLayer layer) { 149 nCancelLayerUpdate(mRenderer, layer.getLayer()); 150 } 151 152 @Override 153 void flushLayerUpdates() { 154 nFlushLayerUpdates(mRenderer); 155 } 156 157 @Override 158 void clearLayerUpdates() { 159 nClearLayerUpdates(mRenderer); 160 } 161 162 static native boolean nCopyLayer(long layerId, long bitmap); 163 private static native void nClearLayerUpdates(long renderer); 164 private static native void nFlushLayerUpdates(long renderer); 165 private static native void nPushLayerUpdate(long renderer, long layer); 166 private static native void nCancelLayerUpdate(long renderer, long layer); 167 168 /////////////////////////////////////////////////////////////////////////// 169 // Canvas management 170 /////////////////////////////////////////////////////////////////////////// 171 172 @Override 173 public boolean isOpaque() { 174 return mOpaque; 175 } 176 177 @Override 178 public int getWidth() { 179 return mWidth; 180 } 181 182 @Override 183 public int getHeight() { 184 return mHeight; 185 } 186 187 @Override 188 public int getMaximumBitmapWidth() { 189 return nGetMaximumTextureWidth(); 190 } 191 192 @Override 193 public int getMaximumBitmapHeight() { 194 return nGetMaximumTextureHeight(); 195 } 196 197 private static native int nGetMaximumTextureWidth(); 198 private static native int nGetMaximumTextureHeight(); 199 200 /** 201 * Returns the native OpenGLRenderer object. 202 */ 203 long getRenderer() { 204 return mRenderer; 205 } 206 207 /////////////////////////////////////////////////////////////////////////// 208 // Setup 209 /////////////////////////////////////////////////////////////////////////// 210 211 @Override 212 public void setViewport(int width, int height) { 213 mWidth = width; 214 mHeight = height; 215 216 nSetViewport(mRenderer, width, height); 217 } 218 219 private static native void nSetViewport(long renderer, int width, int height); 220 221 @Override 222 public int onPreDraw(Rect dirty) { 223 if (dirty != null) { 224 return nPrepareDirty(mRenderer, dirty.left, dirty.top, dirty.right, dirty.bottom, 225 mOpaque); 226 } else { 227 return nPrepare(mRenderer, mOpaque); 228 } 229 } 230 231 private static native int nPrepare(long renderer, boolean opaque); 232 private static native int nPrepareDirty(long renderer, int left, int top, int right, int bottom, 233 boolean opaque); 234 235 @Override 236 public void onPostDraw() { 237 nFinish(mRenderer); 238 } 239 240 private static native void nFinish(long renderer); 241 242 /** 243 * Returns the size of the stencil buffer required by the underlying 244 * implementation. 245 * 246 * @return The minimum number of bits the stencil buffer must. Always >= 0. 247 * 248 * @hide 249 */ 250 public static int getStencilSize() { 251 return nGetStencilSize(); 252 } 253 254 private static native int nGetStencilSize(); 255 256 /////////////////////////////////////////////////////////////////////////// 257 // Functor 258 /////////////////////////////////////////////////////////////////////////// 259 260 @Override 261 public int callDrawGLFunction(long drawGLFunction) { 262 return nCallDrawGLFunction(mRenderer, drawGLFunction); 263 } 264 265 private static native int nCallDrawGLFunction(long renderer, long drawGLFunction); 266 267 /////////////////////////////////////////////////////////////////////////// 268 // Memory 269 /////////////////////////////////////////////////////////////////////////// 270 271 /** 272 * Must match Caches::FlushMode values 273 * 274 * @see #flushCaches(int) 275 */ 276 static final int FLUSH_CACHES_LAYERS = 0; 277 278 /** 279 * Must match Caches::FlushMode values 280 * 281 * @see #flushCaches(int) 282 */ 283 static final int FLUSH_CACHES_MODERATE = 1; 284 285 /** 286 * Must match Caches::FlushMode values 287 * 288 * @see #flushCaches(int) 289 */ 290 static final int FLUSH_CACHES_FULL = 2; 291 292 /** 293 * Flush caches to reclaim as much memory as possible. The amount of memory 294 * to reclaim is indicate by the level parameter. 295 * 296 * The level can be one of {@link #FLUSH_CACHES_MODERATE} or 297 * {@link #FLUSH_CACHES_FULL}. 298 * 299 * @param level Hint about the amount of memory to reclaim 300 */ 301 static void flushCaches(int level) { 302 nFlushCaches(level); 303 } 304 305 private static native void nFlushCaches(int level); 306 307 /** 308 * Release all resources associated with the underlying caches. This should 309 * only be called after a full flushCaches(). 310 * 311 * @hide 312 */ 313 static void terminateCaches() { 314 nTerminateCaches(); 315 } 316 317 private static native void nTerminateCaches(); 318 319 static boolean initCaches() { 320 return nInitCaches(); 321 } 322 323 private static native boolean nInitCaches(); 324 325 /////////////////////////////////////////////////////////////////////////// 326 // Atlas 327 /////////////////////////////////////////////////////////////////////////// 328 329 static void initAtlas(GraphicBuffer buffer, long[] map) { 330 nInitAtlas(buffer, map, map.length); 331 } 332 333 private static native void nInitAtlas(GraphicBuffer buffer, long[] map, int count); 334 335 /////////////////////////////////////////////////////////////////////////// 336 // Display list 337 /////////////////////////////////////////////////////////////////////////// 338 339 protected static native long nFinishRecording(long renderer); 340 341 @Override 342 public int drawDisplayList(RenderNode displayList, Rect dirty, int flags) { 343 return nDrawDisplayList(mRenderer, displayList.getNativeDisplayList(), 344 dirty, flags); 345 } 346 347 private static native int nDrawDisplayList(long renderer, long displayList, 348 Rect dirty, int flags); 349 350 /////////////////////////////////////////////////////////////////////////// 351 // Hardware layer 352 /////////////////////////////////////////////////////////////////////////// 353 354 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 355 layer.setLayerPaint(paint); 356 nDrawLayer(mRenderer, layer.getLayer(), x, y); 357 } 358 359 private static native void nDrawLayer(long renderer, long layer, float x, float y); 360 361 /////////////////////////////////////////////////////////////////////////// 362 // Support 363 /////////////////////////////////////////////////////////////////////////// 364 365 private Rect getInternalClipBounds() { 366 if (mClipBounds == null) mClipBounds = new Rect(); 367 return mClipBounds; 368 } 369 370 371 private RectF getPathBounds() { 372 if (mPathBounds == null) mPathBounds = new RectF(); 373 return mPathBounds; 374 } 375 376 private float[] getPointStorage() { 377 if (mPoint == null) mPoint = new float[2]; 378 return mPoint; 379 } 380 381 private float[] getLineStorage() { 382 if (mLine == null) mLine = new float[4]; 383 return mLine; 384 } 385 386 /////////////////////////////////////////////////////////////////////////// 387 // Clipping 388 /////////////////////////////////////////////////////////////////////////// 389 390 @Override 391 public boolean clipPath(Path path) { 392 return nClipPath(mRenderer, path.mNativePath, Region.Op.INTERSECT.nativeInt); 393 } 394 395 @Override 396 public boolean clipPath(Path path, Region.Op op) { 397 return nClipPath(mRenderer, path.mNativePath, op.nativeInt); 398 } 399 400 private static native boolean nClipPath(long renderer, long path, int op); 401 402 @Override 403 public boolean clipRect(float left, float top, float right, float bottom) { 404 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 405 } 406 407 private static native boolean nClipRect(long renderer, float left, float top, 408 float right, float bottom, int op); 409 410 @Override 411 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 412 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 413 } 414 415 @Override 416 public boolean clipRect(int left, int top, int right, int bottom) { 417 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 418 } 419 420 private static native boolean nClipRect(long renderer, int left, int top, 421 int right, int bottom, int op); 422 423 @Override 424 public boolean clipRect(Rect rect) { 425 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 426 Region.Op.INTERSECT.nativeInt); 427 } 428 429 @Override 430 public boolean clipRect(Rect rect, Region.Op op) { 431 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 432 } 433 434 @Override 435 public boolean clipRect(RectF rect) { 436 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 437 Region.Op.INTERSECT.nativeInt); 438 } 439 440 @Override 441 public boolean clipRect(RectF rect, Region.Op op) { 442 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 443 } 444 445 @Override 446 public boolean clipRegion(Region region) { 447 return nClipRegion(mRenderer, region.mNativeRegion, Region.Op.INTERSECT.nativeInt); 448 } 449 450 @Override 451 public boolean clipRegion(Region region, Region.Op op) { 452 return nClipRegion(mRenderer, region.mNativeRegion, op.nativeInt); 453 } 454 455 private static native boolean nClipRegion(long renderer, long region, int op); 456 457 @Override 458 public boolean getClipBounds(Rect bounds) { 459 return nGetClipBounds(mRenderer, bounds); 460 } 461 462 private static native boolean nGetClipBounds(long renderer, Rect bounds); 463 464 @Override 465 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 466 return nQuickReject(mRenderer, left, top, right, bottom); 467 } 468 469 private static native boolean nQuickReject(long renderer, float left, float top, 470 float right, float bottom); 471 472 @Override 473 public boolean quickReject(Path path, EdgeType type) { 474 RectF pathBounds = getPathBounds(); 475 path.computeBounds(pathBounds, true); 476 return nQuickReject(mRenderer, pathBounds.left, pathBounds.top, 477 pathBounds.right, pathBounds.bottom); 478 } 479 480 @Override 481 public boolean quickReject(RectF rect, EdgeType type) { 482 return nQuickReject(mRenderer, rect.left, rect.top, rect.right, rect.bottom); 483 } 484 485 /////////////////////////////////////////////////////////////////////////// 486 // Transformations 487 /////////////////////////////////////////////////////////////////////////// 488 489 @Override 490 public void translate(float dx, float dy) { 491 if (dx != 0.0f || dy != 0.0f) nTranslate(mRenderer, dx, dy); 492 } 493 494 private static native void nTranslate(long renderer, float dx, float dy); 495 496 @Override 497 public void skew(float sx, float sy) { 498 nSkew(mRenderer, sx, sy); 499 } 500 501 private static native void nSkew(long renderer, float sx, float sy); 502 503 @Override 504 public void rotate(float degrees) { 505 nRotate(mRenderer, degrees); 506 } 507 508 private static native void nRotate(long renderer, float degrees); 509 510 @Override 511 public void scale(float sx, float sy) { 512 nScale(mRenderer, sx, sy); 513 } 514 515 private static native void nScale(long renderer, float sx, float sy); 516 517 @Override 518 public void setMatrix(Matrix matrix) { 519 nSetMatrix(mRenderer, matrix == null ? 0 : matrix.native_instance); 520 } 521 522 private static native void nSetMatrix(long renderer, long matrix); 523 524 @SuppressWarnings("deprecation") 525 @Override 526 public void getMatrix(Matrix matrix) { 527 nGetMatrix(mRenderer, matrix.native_instance); 528 } 529 530 private static native void nGetMatrix(long renderer, long matrix); 531 532 @Override 533 public void concat(Matrix matrix) { 534 if (matrix != null) nConcatMatrix(mRenderer, matrix.native_instance); 535 } 536 537 private static native void nConcatMatrix(long renderer, long matrix); 538 539 /////////////////////////////////////////////////////////////////////////// 540 // State management 541 /////////////////////////////////////////////////////////////////////////// 542 543 @Override 544 public int save() { 545 return nSave(mRenderer, Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG); 546 } 547 548 @Override 549 public int save(int saveFlags) { 550 return nSave(mRenderer, saveFlags); 551 } 552 553 private static native int nSave(long renderer, int flags); 554 555 @Override 556 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 557 if (bounds != null) { 558 return saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, paint, saveFlags); 559 } 560 561 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 562 return nSaveLayer(mRenderer, nativePaint, saveFlags); 563 } 564 565 private static native int nSaveLayer(long renderer, long paint, int saveFlags); 566 567 @Override 568 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 569 int saveFlags) { 570 if (left < right && top < bottom) { 571 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 572 return nSaveLayer(mRenderer, left, top, right, bottom, nativePaint, saveFlags); 573 } 574 return save(saveFlags); 575 } 576 577 private static native int nSaveLayer(long renderer, float left, float top, 578 float right, float bottom, long paint, int saveFlags); 579 580 @Override 581 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 582 if (bounds != null) { 583 return saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 584 alpha, saveFlags); 585 } 586 return nSaveLayerAlpha(mRenderer, alpha, saveFlags); 587 } 588 589 private static native int nSaveLayerAlpha(long renderer, int alpha, int saveFlags); 590 591 @Override 592 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 593 int saveFlags) { 594 if (left < right && top < bottom) { 595 return nSaveLayerAlpha(mRenderer, left, top, right, bottom, alpha, saveFlags); 596 } 597 return save(saveFlags); 598 } 599 600 private static native int nSaveLayerAlpha(long renderer, float left, float top, float right, 601 float bottom, int alpha, int saveFlags); 602 603 @Override 604 public void restore() { 605 nRestore(mRenderer); 606 } 607 608 private static native void nRestore(long renderer); 609 610 @Override 611 public void restoreToCount(int saveCount) { 612 nRestoreToCount(mRenderer, saveCount); 613 } 614 615 private static native void nRestoreToCount(long renderer, int saveCount); 616 617 @Override 618 public int getSaveCount() { 619 return nGetSaveCount(mRenderer); 620 } 621 622 private static native int nGetSaveCount(long renderer); 623 624 /////////////////////////////////////////////////////////////////////////// 625 // Filtering 626 /////////////////////////////////////////////////////////////////////////// 627 628 @Override 629 public void setDrawFilter(DrawFilter filter) { 630 mFilter = filter; 631 if (filter == null) { 632 nResetPaintFilter(mRenderer); 633 } else if (filter instanceof PaintFlagsDrawFilter) { 634 PaintFlagsDrawFilter flagsFilter = (PaintFlagsDrawFilter) filter; 635 nSetupPaintFilter(mRenderer, flagsFilter.clearBits, flagsFilter.setBits); 636 } 637 } 638 639 private static native void nResetPaintFilter(long renderer); 640 private static native void nSetupPaintFilter(long renderer, int clearBits, int setBits); 641 642 @Override 643 public DrawFilter getDrawFilter() { 644 return mFilter; 645 } 646 647 /////////////////////////////////////////////////////////////////////////// 648 // Drawing 649 /////////////////////////////////////////////////////////////////////////// 650 651 @Override 652 public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 653 Paint paint) { 654 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 655 try { 656 nDrawArc(mRenderer, oval.left, oval.top, oval.right, oval.bottom, 657 startAngle, sweepAngle, useCenter, paint.mNativePaint); 658 } finally { 659 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 660 } 661 } 662 663 private static native void nDrawArc(long renderer, float left, float top, 664 float right, float bottom, float startAngle, float sweepAngle, 665 boolean useCenter, long paint); 666 667 @Override 668 public void drawARGB(int a, int r, int g, int b) { 669 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 670 } 671 672 @Override 673 public void drawPatch(NinePatch patch, Rect dst, Paint paint) { 674 Bitmap bitmap = patch.getBitmap(); 675 throwIfCannotDraw(bitmap); 676 // Shaders are ignored when drawing patches 677 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 678 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, patch.mNativeChunk, 679 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 680 } 681 682 @Override 683 public void drawPatch(NinePatch patch, RectF dst, Paint paint) { 684 Bitmap bitmap = patch.getBitmap(); 685 throwIfCannotDraw(bitmap); 686 // Shaders are ignored when drawing patches 687 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 688 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, patch.mNativeChunk, 689 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 690 } 691 692 private static native void nDrawPatch(long renderer, long bitmap, byte[] buffer, long chunk, 693 float left, float top, float right, float bottom, long paint); 694 695 @Override 696 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 697 throwIfCannotDraw(bitmap); 698 // Shaders are ignored when drawing bitmaps 699 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 700 try { 701 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 702 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 703 } finally { 704 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 705 } 706 } 707 708 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 709 float left, float top, long paint); 710 711 @Override 712 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 713 throwIfCannotDraw(bitmap); 714 // Shaders are ignored when drawing bitmaps 715 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 716 try { 717 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 718 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 719 matrix.native_instance, nativePaint); 720 } finally { 721 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 722 } 723 } 724 725 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 726 long matrix, long paint); 727 728 @Override 729 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 730 throwIfCannotDraw(bitmap); 731 // Shaders are ignored when drawing bitmaps 732 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 733 try { 734 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 735 736 int left, top, right, bottom; 737 if (src == null) { 738 left = top = 0; 739 right = bitmap.getWidth(); 740 bottom = bitmap.getHeight(); 741 } else { 742 left = src.left; 743 right = src.right; 744 top = src.top; 745 bottom = src.bottom; 746 } 747 748 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 749 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 750 } finally { 751 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 752 } 753 } 754 755 @Override 756 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 757 throwIfCannotDraw(bitmap); 758 // Shaders are ignored when drawing bitmaps 759 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 760 try { 761 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 762 763 float left, top, right, bottom; 764 if (src == null) { 765 left = top = 0; 766 right = bitmap.getWidth(); 767 bottom = bitmap.getHeight(); 768 } else { 769 left = src.left; 770 right = src.right; 771 top = src.top; 772 bottom = src.bottom; 773 } 774 775 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 776 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 777 } finally { 778 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 779 } 780 } 781 782 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 783 float srcLeft, float srcTop, float srcRight, float srcBottom, 784 float left, float top, float right, float bottom, long paint); 785 786 @Override 787 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 788 int width, int height, boolean hasAlpha, Paint paint) { 789 if (width < 0) { 790 throw new IllegalArgumentException("width must be >= 0"); 791 } 792 793 if (height < 0) { 794 throw new IllegalArgumentException("height must be >= 0"); 795 } 796 797 if (Math.abs(stride) < width) { 798 throw new IllegalArgumentException("abs(stride) must be >= width"); 799 } 800 801 int lastScanline = offset + (height - 1) * stride; 802 int length = colors.length; 803 804 if (offset < 0 || (offset + width > length) || lastScanline < 0 || 805 (lastScanline + width > length)) { 806 throw new ArrayIndexOutOfBoundsException(); 807 } 808 809 // Shaders are ignored when drawing bitmaps 810 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 811 nDrawBitmap(mRenderer, colors, offset, stride, x, y, 812 width, height, hasAlpha, nativePaint); 813 } 814 815 private static native void nDrawBitmap(long renderer, int[] colors, int offset, int stride, 816 float x, float y, int width, int height, boolean hasAlpha, long nativePaint); 817 818 @Override 819 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 820 int width, int height, boolean hasAlpha, Paint paint) { 821 // Shaders are ignored when drawing bitmaps 822 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 823 } 824 825 @Override 826 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 827 int vertOffset, int[] colors, int colorOffset, Paint paint) { 828 throwIfCannotDraw(bitmap); 829 if (meshWidth < 0 || meshHeight < 0 || vertOffset < 0 || colorOffset < 0) { 830 throw new ArrayIndexOutOfBoundsException(); 831 } 832 833 if (meshWidth == 0 || meshHeight == 0) { 834 return; 835 } 836 837 final int count = (meshWidth + 1) * (meshHeight + 1); 838 checkRange(verts.length, vertOffset, count * 2); 839 840 if (colors != null) { 841 checkRange(colors.length, colorOffset, count); 842 } 843 844 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 845 try { 846 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 847 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 848 verts, vertOffset, colors, colorOffset, nativePaint); 849 } finally { 850 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 851 } 852 } 853 854 private static native void nDrawBitmapMesh(long renderer, long bitmap, byte[] buffer, 855 int meshWidth, int meshHeight, float[] verts, int vertOffset, 856 int[] colors, int colorOffset, long paint); 857 858 @Override 859 public void drawCircle(float cx, float cy, float radius, Paint paint) { 860 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 861 try { 862 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 863 } finally { 864 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 865 } 866 } 867 868 private static native void nDrawCircle(long renderer, float cx, float cy, 869 float radius, long paint); 870 871 @Override 872 public void drawCircle(CanvasProperty<Float> cx, CanvasProperty<Float> cy, 873 CanvasProperty<Float> radius, CanvasProperty<Paint> paint) { 874 nDrawCircle(mRenderer, cx.getNativeContainer(), cy.getNativeContainer(), 875 radius.getNativeContainer(), paint.getNativeContainer()); 876 } 877 878 private static native void nDrawCircle(long renderer, long propCx, 879 long propCy, long propRadius, long propPaint); 880 881 @Override 882 public void drawColor(int color) { 883 drawColor(color, PorterDuff.Mode.SRC_OVER); 884 } 885 886 @Override 887 public void drawColor(int color, PorterDuff.Mode mode) { 888 nDrawColor(mRenderer, color, mode.nativeInt); 889 } 890 891 private static native void nDrawColor(long renderer, int color, int mode); 892 893 @Override 894 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 895 float[] line = getLineStorage(); 896 line[0] = startX; 897 line[1] = startY; 898 line[2] = stopX; 899 line[3] = stopY; 900 drawLines(line, 0, 4, paint); 901 } 902 903 @Override 904 public void drawLines(float[] pts, int offset, int count, Paint paint) { 905 if (count < 4) return; 906 907 if ((offset | count) < 0 || offset + count > pts.length) { 908 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 909 } 910 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 911 try { 912 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 913 } finally { 914 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 915 } 916 } 917 918 private static native void nDrawLines(long renderer, float[] points, 919 int offset, int count, long paint); 920 921 @Override 922 public void drawLines(float[] pts, Paint paint) { 923 drawLines(pts, 0, pts.length, paint); 924 } 925 926 @Override 927 public void drawOval(RectF oval, Paint paint) { 928 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 929 try { 930 nDrawOval(mRenderer, oval.left, oval.top, oval.right, oval.bottom, paint.mNativePaint); 931 } finally { 932 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 933 } 934 } 935 936 private static native void nDrawOval(long renderer, float left, float top, 937 float right, float bottom, long paint); 938 939 @Override 940 public void drawPaint(Paint paint) { 941 final Rect r = getInternalClipBounds(); 942 nGetClipBounds(mRenderer, r); 943 drawRect(r.left, r.top, r.right, r.bottom, paint); 944 } 945 946 @Override 947 public void drawPath(Path path, Paint paint) { 948 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 949 try { 950 if (path.isSimplePath) { 951 if (path.rects != null) { 952 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 953 } 954 } else { 955 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 956 } 957 } finally { 958 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 959 } 960 } 961 962 private static native void nDrawPath(long renderer, long path, long paint); 963 private static native void nDrawRects(long renderer, long region, long paint); 964 965 void drawRects(float[] rects, int count, Paint paint) { 966 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 967 try { 968 nDrawRects(mRenderer, rects, count, paint.mNativePaint); 969 } finally { 970 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 971 } 972 } 973 974 private static native void nDrawRects(long renderer, float[] rects, int count, long paint); 975 976 @Override 977 public void drawPicture(Picture picture) { 978 if (picture.createdFromStream) { 979 return; 980 } 981 982 picture.endRecording(); 983 // TODO: Implement rendering 984 } 985 986 @Override 987 public void drawPicture(Picture picture, Rect dst) { 988 if (picture.createdFromStream) { 989 return; 990 } 991 992 save(); 993 translate(dst.left, dst.top); 994 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 995 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 996 } 997 drawPicture(picture); 998 restore(); 999 } 1000 1001 @Override 1002 public void drawPicture(Picture picture, RectF dst) { 1003 if (picture.createdFromStream) { 1004 return; 1005 } 1006 1007 save(); 1008 translate(dst.left, dst.top); 1009 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1010 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 1011 } 1012 drawPicture(picture); 1013 restore(); 1014 } 1015 1016 @Override 1017 public void drawPoint(float x, float y, Paint paint) { 1018 float[] point = getPointStorage(); 1019 point[0] = x; 1020 point[1] = y; 1021 drawPoints(point, 0, 2, paint); 1022 } 1023 1024 @Override 1025 public void drawPoints(float[] pts, Paint paint) { 1026 drawPoints(pts, 0, pts.length, paint); 1027 } 1028 1029 @Override 1030 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 1031 if (count < 2) return; 1032 1033 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 1034 try { 1035 nDrawPoints(mRenderer, pts, offset, count, paint.mNativePaint); 1036 } finally { 1037 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1038 } 1039 } 1040 1041 private static native void nDrawPoints(long renderer, float[] points, 1042 int offset, int count, long paint); 1043 1044 @SuppressWarnings("deprecation") 1045 @Override 1046 public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 1047 if (index < 0 || index + count > text.length || count * 2 > pos.length) { 1048 throw new IndexOutOfBoundsException(); 1049 } 1050 1051 int modifiers = setupModifiers(paint); 1052 try { 1053 nDrawPosText(mRenderer, text, index, count, pos, paint.mNativePaint); 1054 } finally { 1055 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1056 } 1057 } 1058 1059 private static native void nDrawPosText(long renderer, char[] text, int index, int count, 1060 float[] pos, long paint); 1061 1062 @SuppressWarnings("deprecation") 1063 @Override 1064 public void drawPosText(String text, float[] pos, Paint paint) { 1065 if (text.length() * 2 > pos.length) { 1066 throw new ArrayIndexOutOfBoundsException(); 1067 } 1068 1069 int modifiers = setupModifiers(paint); 1070 try { 1071 nDrawPosText(mRenderer, text, 0, text.length(), pos, paint.mNativePaint); 1072 } finally { 1073 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1074 } 1075 } 1076 1077 private static native void nDrawPosText(long renderer, String text, int start, int end, 1078 float[] pos, long paint); 1079 1080 @Override 1081 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 1082 if (left == right || top == bottom) return; 1083 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 1084 try { 1085 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 1086 } finally { 1087 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1088 } 1089 } 1090 1091 private static native void nDrawRect(long renderer, float left, float top, 1092 float right, float bottom, long paint); 1093 1094 @Override 1095 public void drawRect(Rect r, Paint paint) { 1096 drawRect(r.left, r.top, r.right, r.bottom, paint); 1097 } 1098 1099 @Override 1100 public void drawRect(RectF r, Paint paint) { 1101 drawRect(r.left, r.top, r.right, r.bottom, paint); 1102 } 1103 1104 @Override 1105 public void drawRGB(int r, int g, int b) { 1106 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 1107 } 1108 1109 @Override 1110 public void drawRoundRect(float left, float top, float right, float bottom, float rx, float ry, 1111 Paint paint) { 1112 int modifiers = setupModifiers(paint, MODIFIER_SHADER); 1113 try { 1114 nDrawRoundRect(mRenderer, left, top, right, bottom, rx, ry, paint.mNativePaint); 1115 } finally { 1116 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1117 } 1118 } 1119 1120 private static native void nDrawRoundRect(long renderer, float left, float top, 1121 float right, float bottom, float rx, float y, long paint); 1122 1123 @Override 1124 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 1125 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 1126 throw new IndexOutOfBoundsException(); 1127 } 1128 1129 int modifiers = setupModifiers(paint); 1130 try { 1131 nDrawText(mRenderer, text, index, count, x, y, paint.mBidiFlags, paint.mNativePaint); 1132 } finally { 1133 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1134 } 1135 } 1136 1137 private static native void nDrawText(long renderer, char[] text, int index, int count, 1138 float x, float y, int bidiFlags, long paint); 1139 1140 @Override 1141 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 1142 int modifiers = setupModifiers(paint); 1143 try { 1144 if (text instanceof String || text instanceof SpannedString || 1145 text instanceof SpannableString) { 1146 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 1147 paint.mNativePaint); 1148 } else if (text instanceof GraphicsOperations) { 1149 ((GraphicsOperations) text).drawText(this, start, end, x, y, 1150 paint); 1151 } else { 1152 char[] buf = TemporaryBuffer.obtain(end - start); 1153 TextUtils.getChars(text, start, end, buf, 0); 1154 nDrawText(mRenderer, buf, 0, end - start, x, y, 1155 paint.mBidiFlags, paint.mNativePaint); 1156 TemporaryBuffer.recycle(buf); 1157 } 1158 } finally { 1159 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1160 } 1161 } 1162 1163 @Override 1164 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 1165 if ((start | end | (end - start) | (text.length() - end)) < 0) { 1166 throw new IndexOutOfBoundsException(); 1167 } 1168 1169 int modifiers = setupModifiers(paint); 1170 try { 1171 nDrawText(mRenderer, text, start, end, x, y, paint.mBidiFlags, paint.mNativePaint); 1172 } finally { 1173 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1174 } 1175 } 1176 1177 private static native void nDrawText(long renderer, String text, int start, int end, 1178 float x, float y, int bidiFlags, long paint); 1179 1180 @Override 1181 public void drawText(String text, float x, float y, Paint paint) { 1182 int modifiers = setupModifiers(paint); 1183 try { 1184 nDrawText(mRenderer, text, 0, text.length(), x, y, paint.mBidiFlags, 1185 paint.mNativePaint); 1186 } finally { 1187 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1188 } 1189 } 1190 1191 @Override 1192 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 1193 float vOffset, Paint paint) { 1194 if (index < 0 || index + count > text.length) { 1195 throw new ArrayIndexOutOfBoundsException(); 1196 } 1197 1198 int modifiers = setupModifiers(paint); 1199 try { 1200 nDrawTextOnPath(mRenderer, text, index, count, path.mNativePath, hOffset, vOffset, 1201 paint.mBidiFlags, paint.mNativePaint); 1202 } finally { 1203 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1204 } 1205 } 1206 1207 private static native void nDrawTextOnPath(long renderer, char[] text, int index, int count, 1208 long path, float hOffset, float vOffset, int bidiFlags, long nativePaint); 1209 1210 @Override 1211 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 1212 if (text.length() == 0) return; 1213 1214 int modifiers = setupModifiers(paint); 1215 try { 1216 nDrawTextOnPath(mRenderer, text, 0, text.length(), path.mNativePath, hOffset, vOffset, 1217 paint.mBidiFlags, paint.mNativePaint); 1218 } finally { 1219 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1220 } 1221 } 1222 1223 private static native void nDrawTextOnPath(long renderer, String text, int start, int end, 1224 long path, float hOffset, float vOffset, int bidiFlags, long nativePaint); 1225 1226 @Override 1227 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 1228 float x, float y, int dir, Paint paint) { 1229 if ((index | count | text.length - index - count) < 0) { 1230 throw new IndexOutOfBoundsException(); 1231 } 1232 if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 1233 throw new IllegalArgumentException("Unknown direction: " + dir); 1234 } 1235 1236 int modifiers = setupModifiers(paint); 1237 try { 1238 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, dir, 1239 paint.mNativePaint); 1240 } finally { 1241 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1242 } 1243 } 1244 1245 private static native void nDrawTextRun(long renderer, char[] text, int index, int count, 1246 int contextIndex, int contextCount, float x, float y, int dir, long nativePaint); 1247 1248 @Override 1249 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 1250 float x, float y, int dir, Paint paint) { 1251 if ((start | end | end - start | text.length() - end) < 0) { 1252 throw new IndexOutOfBoundsException(); 1253 } 1254 1255 int modifiers = setupModifiers(paint); 1256 try { 1257 int flags = dir == 0 ? 0 : 1; 1258 if (text instanceof String || text instanceof SpannedString || 1259 text instanceof SpannableString) { 1260 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 1261 contextEnd, x, y, flags, paint.mNativePaint); 1262 } else if (text instanceof GraphicsOperations) { 1263 ((GraphicsOperations) text).drawTextRun(this, start, end, 1264 contextStart, contextEnd, x, y, flags, paint); 1265 } else { 1266 int contextLen = contextEnd - contextStart; 1267 int len = end - start; 1268 char[] buf = TemporaryBuffer.obtain(contextLen); 1269 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 1270 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 1271 x, y, flags, paint.mNativePaint); 1272 TemporaryBuffer.recycle(buf); 1273 } 1274 } finally { 1275 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1276 } 1277 } 1278 1279 private static native void nDrawTextRun(long renderer, String text, int start, int end, 1280 int contextStart, int contextEnd, float x, float y, int flags, long nativePaint); 1281 1282 @Override 1283 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 1284 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 1285 int indexOffset, int indexCount, Paint paint) { 1286 // TODO: Implement 1287 } 1288 1289 private int setupModifiers(Bitmap b, Paint paint) { 1290 if (b.getConfig() != Bitmap.Config.ALPHA_8) { 1291 return MODIFIER_NONE; 1292 } else { 1293 return setupModifiers(paint); 1294 } 1295 } 1296 1297 private int setupModifiers(Paint paint) { 1298 int modifiers = MODIFIER_NONE; 1299 1300 if (paint.hasShadow) { 1301 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 1302 paint.shadowColor); 1303 modifiers |= MODIFIER_SHADOW; 1304 } 1305 1306 final Shader shader = paint.getShader(); 1307 if (shader != null) { 1308 nSetupShader(mRenderer, shader.native_shader); 1309 modifiers |= MODIFIER_SHADER; 1310 } 1311 1312 return modifiers; 1313 } 1314 1315 private int setupModifiers(Paint paint, int flags) { 1316 int modifiers = MODIFIER_NONE; 1317 1318 if (paint.hasShadow && (flags & MODIFIER_SHADOW) != 0) { 1319 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 1320 paint.shadowColor); 1321 modifiers |= MODIFIER_SHADOW; 1322 } 1323 1324 final Shader shader = paint.getShader(); 1325 if (shader != null && (flags & MODIFIER_SHADER) != 0) { 1326 nSetupShader(mRenderer, shader.native_shader); 1327 modifiers |= MODIFIER_SHADER; 1328 } 1329 1330 return modifiers; 1331 } 1332 1333 private static native void nSetupShader(long renderer, long shader); 1334 private static native void nSetupShadow(long renderer, float radius, 1335 float dx, float dy, int color); 1336 1337 private static native void nResetModifiers(long renderer, int modifiers); 1338} 1339