GLES20Canvas.java revision 530041d3191ce817832a0108514617768e43cda6
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.Paint; 25import android.graphics.PaintFlagsDrawFilter; 26import android.graphics.Path; 27import android.graphics.Picture; 28import android.graphics.PorterDuff; 29import android.graphics.Rect; 30import android.graphics.RectF; 31import android.graphics.Region; 32import android.graphics.Shader; 33import android.graphics.SurfaceTexture; 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 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 boolean nCopyLayer(int layerId, int bitmap); 161 162 /////////////////////////////////////////////////////////////////////////// 163 // Canvas management 164 /////////////////////////////////////////////////////////////////////////// 165 166 @Override 167 public boolean isOpaque() { 168 return mOpaque; 169 } 170 171 @Override 172 public int getWidth() { 173 return mWidth; 174 } 175 176 @Override 177 public int getHeight() { 178 return mHeight; 179 } 180 181 @Override 182 public int getMaximumBitmapWidth() { 183 return nGetMaximumTextureWidth(); 184 } 185 186 @Override 187 public int getMaximumBitmapHeight() { 188 return nGetMaximumTextureHeight(); 189 } 190 191 private static native int nGetMaximumTextureWidth(); 192 private static native int nGetMaximumTextureHeight(); 193 194 /////////////////////////////////////////////////////////////////////////// 195 // Setup 196 /////////////////////////////////////////////////////////////////////////// 197 198 @Override 199 public void setViewport(int width, int height) { 200 mWidth = width; 201 mHeight = height; 202 203 nSetViewport(mRenderer, width, height); 204 } 205 206 private static native void nSetViewport(int renderer, int width, int height); 207 208 /** 209 * Preserves the back buffer of the current surface after a buffer swap. 210 * Calling this method sets the EGL_SWAP_BEHAVIOR attribute of the current 211 * surface to EGL_BUFFER_PRESERVED. Calling this method requires an EGL 212 * config that supports EGL_SWAP_BEHAVIOR_PRESERVED_BIT. 213 * 214 * @return True if the swap behavior was successfully changed, 215 * false otherwise. 216 * 217 * @hide 218 */ 219 public static boolean preserveBackBuffer() { 220 return nPreserveBackBuffer(); 221 } 222 223 private static native boolean nPreserveBackBuffer(); 224 225 /** 226 * Indicates whether the current surface preserves its back buffer 227 * after a buffer swap. 228 * 229 * @return True, if the surface's EGL_SWAP_BEHAVIOR is EGL_BUFFER_PRESERVED, 230 * false otherwise 231 * 232 * @hide 233 */ 234 public static boolean isBackBufferPreserved() { 235 return nIsBackBufferPreserved(); 236 } 237 238 private static native boolean nIsBackBufferPreserved(); 239 240 /** 241 * Disables v-sync. For performance testing only. 242 * 243 * @hide 244 */ 245 public static void disableVsync() { 246 nDisableVsync(); 247 } 248 249 private static native void nDisableVsync(); 250 251 @Override 252 public void onPreDraw(Rect dirty) { 253 if (dirty != null) { 254 nPrepareDirty(mRenderer, dirty.left, dirty.top, dirty.right, dirty.bottom, mOpaque); 255 } else { 256 nPrepare(mRenderer, mOpaque); 257 } 258 } 259 260 private static native void nPrepare(int renderer, boolean opaque); 261 private static native void nPrepareDirty(int renderer, int left, int top, int right, int bottom, 262 boolean opaque); 263 264 @Override 265 public void onPostDraw() { 266 nFinish(mRenderer); 267 } 268 269 private static native void nFinish(int renderer); 270 271 /** 272 * Returns the size of the stencil buffer required by the underlying 273 * implementation. 274 * 275 * @return The minimum number of bits the stencil buffer must. Always >= 0. 276 * 277 * @hide 278 */ 279 public static int getStencilSize() { 280 return nGetStencilSize(); 281 } 282 283 private static native int nGetStencilSize(); 284 285 /////////////////////////////////////////////////////////////////////////// 286 // Functor 287 /////////////////////////////////////////////////////////////////////////// 288 289 @Override 290 public boolean callDrawGLFunction(int drawGLFunction) { 291 return nCallDrawGLFunction(mRenderer, drawGLFunction); 292 } 293 294 private static native boolean nCallDrawGLFunction(int renderer, int drawGLFunction); 295 296 /////////////////////////////////////////////////////////////////////////// 297 // Memory 298 /////////////////////////////////////////////////////////////////////////// 299 300 /** 301 * Must match Caches::FlushMode values 302 * 303 * @see #flushCaches(int) 304 */ 305 public static final int FLUSH_CACHES_LAYERS = 0; 306 307 /** 308 * Must match Caches::FlushMode values 309 * 310 * @see #flushCaches(int) 311 */ 312 public static final int FLUSH_CACHES_MODERATE = 1; 313 314 /** 315 * Must match Caches::FlushMode values 316 * 317 * @see #flushCaches(int) 318 */ 319 public static final int FLUSH_CACHES_FULL = 2; 320 321 /** 322 * Flush caches to reclaim as much memory as possible. The amount of memory 323 * to reclaim is indicate by the level parameter. 324 * 325 * The level can be one of {@link #FLUSH_CACHES_MODERATE} or 326 * {@link #FLUSH_CACHES_FULL}. 327 * 328 * @param level Hint about the amount of memory to reclaim 329 * 330 * @hide 331 */ 332 public static void flushCaches(int level) { 333 nFlushCaches(level); 334 } 335 336 private static native void nFlushCaches(int level); 337 338 /** 339 * Release all resources associated with the underlying caches. This should 340 * only be called after a full flushCaches(). 341 * 342 * @hide 343 */ 344 public static void terminateCaches() { 345 nTerminateCaches(); 346 } 347 348 private static native void nTerminateCaches(); 349 350 /** 351 * @hide 352 */ 353 public static void initCaches() { 354 nInitCaches(); 355 } 356 357 private static native void nInitCaches(); 358 359 /////////////////////////////////////////////////////////////////////////// 360 // Display list 361 /////////////////////////////////////////////////////////////////////////// 362 363 int getDisplayList(int displayList) { 364 return nGetDisplayList(mRenderer, displayList); 365 } 366 367 private static native int nGetDisplayList(int renderer, int displayList); 368 369 static void destroyDisplayList(int displayList) { 370 nDestroyDisplayList(displayList); 371 } 372 373 private static native void nDestroyDisplayList(int displayList); 374 375 static int getDisplayListSize(int displayList) { 376 return nGetDisplayListSize(displayList); 377 } 378 379 private static native int nGetDisplayListSize(int displayList); 380 381 @Override 382 public boolean drawDisplayList(DisplayList displayList, int width, int height, Rect dirty) { 383 return nDrawDisplayList(mRenderer, 384 ((GLES20DisplayList) displayList).getNativeDisplayList(), width, height, dirty); 385 } 386 387 private static native boolean nDrawDisplayList(int renderer, int displayList, 388 int width, int height, Rect dirty); 389 390 @Override 391 void outputDisplayList(DisplayList displayList) { 392 nOutputDisplayList(mRenderer, ((GLES20DisplayList) displayList).getNativeDisplayList()); 393 } 394 395 private static native void nOutputDisplayList(int renderer, int displayList); 396 397 /////////////////////////////////////////////////////////////////////////// 398 // Hardware layer 399 /////////////////////////////////////////////////////////////////////////// 400 401 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 402 final GLES20Layer glLayer = (GLES20Layer) layer; 403 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 404 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 405 nDrawLayer(mRenderer, glLayer.getLayer(), x, y, nativePaint); 406 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 407 } 408 409 private static native void nDrawLayer(int renderer, int layer, float x, float y, int paint); 410 411 void interrupt() { 412 nInterrupt(mRenderer); 413 } 414 415 void resume() { 416 nResume(mRenderer); 417 } 418 419 private static native void nInterrupt(int renderer); 420 private static native void nResume(int renderer); 421 422 /////////////////////////////////////////////////////////////////////////// 423 // Clipping 424 /////////////////////////////////////////////////////////////////////////// 425 426 @Override 427 public boolean clipPath(Path path) { 428 // TODO: Implement 429 path.computeBounds(mPathBounds, true); 430 return nClipRect(mRenderer, mPathBounds.left, mPathBounds.top, 431 mPathBounds.right, mPathBounds.bottom, Region.Op.INTERSECT.nativeInt); 432 } 433 434 @Override 435 public boolean clipPath(Path path, Region.Op op) { 436 // TODO: Implement 437 path.computeBounds(mPathBounds, true); 438 return nClipRect(mRenderer, mPathBounds.left, mPathBounds.top, 439 mPathBounds.right, mPathBounds.bottom, op.nativeInt); 440 } 441 442 @Override 443 public boolean clipRect(float left, float top, float right, float bottom) { 444 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 445 } 446 447 private static native boolean nClipRect(int renderer, float left, float top, 448 float right, float bottom, int op); 449 450 @Override 451 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 452 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 453 } 454 455 @Override 456 public boolean clipRect(int left, int top, int right, int bottom) { 457 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 458 } 459 460 private static native boolean nClipRect(int renderer, int left, int top, int right, int bottom, 461 int op); 462 463 @Override 464 public boolean clipRect(Rect rect) { 465 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 466 Region.Op.INTERSECT.nativeInt); 467 } 468 469 @Override 470 public boolean clipRect(Rect rect, Region.Op op) { 471 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 472 } 473 474 @Override 475 public boolean clipRect(RectF rect) { 476 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 477 Region.Op.INTERSECT.nativeInt); 478 } 479 480 @Override 481 public boolean clipRect(RectF rect, Region.Op op) { 482 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 483 } 484 485 @Override 486 public boolean clipRegion(Region region) { 487 // TODO: Implement 488 region.getBounds(mClipBounds); 489 return nClipRect(mRenderer, mClipBounds.left, mClipBounds.top, 490 mClipBounds.right, mClipBounds.bottom, Region.Op.INTERSECT.nativeInt); 491 } 492 493 @Override 494 public boolean clipRegion(Region region, Region.Op op) { 495 // TODO: Implement 496 region.getBounds(mClipBounds); 497 return nClipRect(mRenderer, mClipBounds.left, mClipBounds.top, 498 mClipBounds.right, mClipBounds.bottom, op.nativeInt); 499 } 500 501 @Override 502 public boolean getClipBounds(Rect bounds) { 503 return nGetClipBounds(mRenderer, bounds); 504 } 505 506 private static native boolean nGetClipBounds(int renderer, Rect bounds); 507 508 @Override 509 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 510 return nQuickReject(mRenderer, left, top, right, bottom, type.nativeInt); 511 } 512 513 private static native boolean nQuickReject(int renderer, float left, float top, 514 float right, float bottom, int edge); 515 516 @Override 517 public boolean quickReject(Path path, EdgeType type) { 518 path.computeBounds(mPathBounds, true); 519 return nQuickReject(mRenderer, mPathBounds.left, mPathBounds.top, 520 mPathBounds.right, mPathBounds.bottom, type.nativeInt); 521 } 522 523 @Override 524 public boolean quickReject(RectF rect, EdgeType type) { 525 return nQuickReject(mRenderer, rect.left, rect.top, rect.right, rect.bottom, type.nativeInt); 526 } 527 528 /////////////////////////////////////////////////////////////////////////// 529 // Transformations 530 /////////////////////////////////////////////////////////////////////////// 531 532 @Override 533 public void translate(float dx, float dy) { 534 if (dx != 0.0f || dy != 0.0f) nTranslate(mRenderer, dx, dy); 535 } 536 537 private static native void nTranslate(int renderer, float dx, float dy); 538 539 @Override 540 public void skew(float sx, float sy) { 541 nSkew(mRenderer, sx, sy); 542 } 543 544 private static native void nSkew(int renderer, float sx, float sy); 545 546 @Override 547 public void rotate(float degrees) { 548 nRotate(mRenderer, degrees); 549 } 550 551 private static native void nRotate(int renderer, float degrees); 552 553 @Override 554 public void scale(float sx, float sy) { 555 nScale(mRenderer, sx, sy); 556 } 557 558 private static native void nScale(int renderer, float sx, float sy); 559 560 @Override 561 public void setMatrix(Matrix matrix) { 562 nSetMatrix(mRenderer, matrix == null ? 0 : matrix.native_instance); 563 } 564 565 private static native void nSetMatrix(int renderer, int matrix); 566 567 @SuppressWarnings("deprecation") 568 @Override 569 public void getMatrix(Matrix matrix) { 570 nGetMatrix(mRenderer, matrix.native_instance); 571 } 572 573 private static native void nGetMatrix(int renderer, int matrix); 574 575 @Override 576 public void concat(Matrix matrix) { 577 nConcatMatrix(mRenderer, matrix.native_instance); 578 } 579 580 private static native void nConcatMatrix(int renderer, int matrix); 581 582 /////////////////////////////////////////////////////////////////////////// 583 // State management 584 /////////////////////////////////////////////////////////////////////////// 585 586 @Override 587 public int save() { 588 return nSave(mRenderer, Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG); 589 } 590 591 @Override 592 public int save(int saveFlags) { 593 return nSave(mRenderer, saveFlags); 594 } 595 596 private static native int nSave(int renderer, int flags); 597 598 @Override 599 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 600 if (bounds != null) { 601 return saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, paint, saveFlags); 602 } 603 604 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 605 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 606 int count = nSaveLayer(mRenderer, nativePaint, saveFlags); 607 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 608 return count; 609 } 610 611 private static native int nSaveLayer(int renderer, int paint, int saveFlags); 612 613 @Override 614 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 615 int saveFlags) { 616 if (left < right && top < bottom) { 617 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 618 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 619 int count = nSaveLayer(mRenderer, left, top, right, bottom, nativePaint, saveFlags); 620 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 621 return count; 622 } 623 return save(saveFlags); 624 } 625 626 private static native int nSaveLayer(int renderer, float left, float top, 627 float right, float bottom, int paint, int saveFlags); 628 629 @Override 630 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 631 if (bounds != null) { 632 return saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 633 alpha, saveFlags); 634 } 635 return nSaveLayerAlpha(mRenderer, alpha, saveFlags); 636 } 637 638 private static native int nSaveLayerAlpha(int renderer, int alpha, int saveFlags); 639 640 @Override 641 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 642 int saveFlags) { 643 if (left < right && top < bottom) { 644 return nSaveLayerAlpha(mRenderer, left, top, right, bottom, alpha, saveFlags); 645 } 646 return save(saveFlags); 647 } 648 649 private static native int nSaveLayerAlpha(int renderer, float left, float top, float right, 650 float bottom, int alpha, int saveFlags); 651 652 @Override 653 public void restore() { 654 nRestore(mRenderer); 655 } 656 657 private static native void nRestore(int renderer); 658 659 @Override 660 public void restoreToCount(int saveCount) { 661 nRestoreToCount(mRenderer, saveCount); 662 } 663 664 private static native void nRestoreToCount(int renderer, int saveCount); 665 666 @Override 667 public int getSaveCount() { 668 return nGetSaveCount(mRenderer); 669 } 670 671 private static native int nGetSaveCount(int renderer); 672 673 /////////////////////////////////////////////////////////////////////////// 674 // Filtering 675 /////////////////////////////////////////////////////////////////////////// 676 677 @Override 678 public void setDrawFilter(DrawFilter filter) { 679 mFilter = filter; 680 if (filter == null) { 681 nResetPaintFilter(mRenderer); 682 } else if (filter instanceof PaintFlagsDrawFilter) { 683 PaintFlagsDrawFilter flagsFilter = (PaintFlagsDrawFilter) filter; 684 nSetupPaintFilter(mRenderer, flagsFilter.clearBits, flagsFilter.setBits); 685 } 686 } 687 688 private static native void nResetPaintFilter(int renderer); 689 private static native void nSetupPaintFilter(int renderer, int clearBits, int setBits); 690 691 @Override 692 public DrawFilter getDrawFilter() { 693 return mFilter; 694 } 695 696 /////////////////////////////////////////////////////////////////////////// 697 // Drawing 698 /////////////////////////////////////////////////////////////////////////// 699 700 @Override 701 public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 702 Paint paint) { 703 int modifiers = setupModifiers(paint); 704 nDrawArc(mRenderer, oval.left, oval.top, oval.right, oval.bottom, startAngle, sweepAngle, 705 useCenter, paint.mNativePaint); 706 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 707 } 708 709 private static native void nDrawArc(int renderer, float left, float top, 710 float right, float bottom, float startAngle, float sweepAngle, 711 boolean useCenter, int paint); 712 713 @Override 714 public void drawARGB(int a, int r, int g, int b) { 715 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 716 } 717 718 @Override 719 public void drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint) { 720 // Shaders are ignored when drawing patches 721 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 722 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 723 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, chunks, 724 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 725 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 726 } 727 728 private static native void nDrawPatch(int renderer, int bitmap, byte[] buffer, byte[] chunks, 729 float left, float top, float right, float bottom, int paint); 730 731 @Override 732 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 733 // Shaders are ignored when drawing bitmaps 734 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 735 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 736 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 737 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 738 } 739 740 private static native void nDrawBitmap( 741 int renderer, int bitmap, byte[] buffer, float left, float top, int paint); 742 743 @Override 744 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 745 // Shaders are ignored when drawing bitmaps 746 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 747 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 748 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 749 matrix.native_instance, nativePaint); 750 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 751 } 752 753 private static native void nDrawBitmap(int renderer, int bitmap, byte[] buff, 754 int matrix, int paint); 755 756 @Override 757 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 758 // Shaders are ignored when drawing bitmaps 759 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 760 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 761 762 int left, top, right, bottom; 763 if (src == null) { 764 left = top = 0; 765 right = bitmap.getWidth(); 766 bottom = bitmap.getHeight(); 767 } else { 768 left = src.left; 769 right = src.right; 770 top = src.top; 771 bottom = src.bottom; 772 } 773 774 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 775 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 776 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 777 } 778 779 @Override 780 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 781 // Shaders are ignored when drawing bitmaps 782 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 783 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 784 785 float left, top, right, bottom; 786 if (src == null) { 787 left = top = 0; 788 right = bitmap.getWidth(); 789 bottom = bitmap.getHeight(); 790 } else { 791 left = src.left; 792 right = src.right; 793 top = src.top; 794 bottom = src.bottom; 795 } 796 797 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 798 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 799 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 800 } 801 802 private static native void nDrawBitmap(int renderer, int bitmap, byte[] buffer, 803 float srcLeft, float srcTop, float srcRight, float srcBottom, 804 float left, float top, float right, float bottom, int paint); 805 806 @Override 807 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 808 int width, int height, boolean hasAlpha, Paint paint) { 809 // Shaders are ignored when drawing bitmaps 810 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 811 final Bitmap.Config config = hasAlpha ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565; 812 final Bitmap b = Bitmap.createBitmap(colors, offset, stride, width, height, config); 813 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 814 nDrawBitmap(mRenderer, b.mNativeBitmap, b.mBuffer, x, y, nativePaint); 815 b.recycle(); 816 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 817 } 818 819 @Override 820 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 821 int width, int height, boolean hasAlpha, Paint paint) { 822 // Shaders are ignored when drawing bitmaps 823 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 824 } 825 826 @Override 827 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 828 int vertOffset, int[] colors, int colorOffset, Paint paint) { 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 // TODO: Colors are ignored for now 841 colors = null; 842 colorOffset = 0; 843 844 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 845 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 846 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 847 verts, vertOffset, colors, colorOffset, nativePaint); 848 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 849 } 850 851 private static native void nDrawBitmapMesh(int renderer, int bitmap, byte[] buffer, 852 int meshWidth, int meshHeight, float[] verts, int vertOffset, 853 int[] colors, int colorOffset, int paint); 854 855 @Override 856 public void drawCircle(float cx, float cy, float radius, Paint paint) { 857 int modifiers = setupModifiers(paint); 858 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 859 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 860 } 861 862 private static native void nDrawCircle(int renderer, float cx, float cy, 863 float radius, int paint); 864 865 @Override 866 public void drawColor(int color) { 867 drawColor(color, PorterDuff.Mode.SRC_OVER); 868 } 869 870 @Override 871 public void drawColor(int color, PorterDuff.Mode mode) { 872 nDrawColor(mRenderer, color, mode.nativeInt); 873 } 874 875 private static native void nDrawColor(int renderer, int color, int mode); 876 877 @Override 878 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 879 mLine[0] = startX; 880 mLine[1] = startY; 881 mLine[2] = stopX; 882 mLine[3] = stopY; 883 drawLines(mLine, 0, 4, paint); 884 } 885 886 @Override 887 public void drawLines(float[] pts, int offset, int count, Paint paint) { 888 if ((offset | count) < 0 || offset + count > pts.length) { 889 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 890 } 891 int modifiers = setupModifiers(paint); 892 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 893 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 894 } 895 896 private static native void nDrawLines(int renderer, float[] points, 897 int offset, int count, int paint); 898 899 @Override 900 public void drawLines(float[] pts, Paint paint) { 901 drawLines(pts, 0, pts.length, paint); 902 } 903 904 @Override 905 public void drawOval(RectF oval, Paint paint) { 906 int modifiers = setupModifiers(paint); 907 nDrawOval(mRenderer, oval.left, oval.top, oval.right, oval.bottom, paint.mNativePaint); 908 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 909 } 910 911 private static native void nDrawOval(int renderer, float left, float top, 912 float right, float bottom, int paint); 913 914 @Override 915 public void drawPaint(Paint paint) { 916 final Rect r = mClipBounds; 917 nGetClipBounds(mRenderer, r); 918 drawRect(r.left, r.top, r.right, r.bottom, paint); 919 } 920 921 @Override 922 public void drawPath(Path path, Paint paint) { 923 int modifiers = setupModifiers(paint); 924 if (path.isSimplePath) { 925 if (path.rects != null) { 926 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 927 } 928 } else { 929 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 930 } 931 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 932 } 933 934 private static native void nDrawPath(int renderer, int path, int paint); 935 private static native void nDrawRects(int renderer, int region, int paint); 936 937 @Override 938 public void drawPicture(Picture picture) { 939 if (picture.createdFromStream) { 940 return; 941 } 942 943 picture.endRecording(); 944 // TODO: Implement rendering 945 } 946 947 @Override 948 public void drawPicture(Picture picture, Rect dst) { 949 if (picture.createdFromStream) { 950 return; 951 } 952 953 save(); 954 translate(dst.left, dst.top); 955 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 956 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 957 } 958 drawPicture(picture); 959 restore(); 960 } 961 962 @Override 963 public void drawPicture(Picture picture, RectF dst) { 964 if (picture.createdFromStream) { 965 return; 966 } 967 968 save(); 969 translate(dst.left, dst.top); 970 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 971 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 972 } 973 drawPicture(picture); 974 restore(); 975 } 976 977 @Override 978 public void drawPoint(float x, float y, Paint paint) { 979 mPoint[0] = x; 980 mPoint[1] = y; 981 drawPoints(mPoint, 0, 2, paint); 982 } 983 984 @Override 985 public void drawPoints(float[] pts, Paint paint) { 986 drawPoints(pts, 0, pts.length, paint); 987 } 988 989 @Override 990 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 991 int modifiers = setupModifiers(paint); 992 nDrawPoints(mRenderer, pts, offset, count, paint.mNativePaint); 993 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 994 } 995 996 private static native void nDrawPoints(int renderer, float[] points, 997 int offset, int count, int paint); 998 999 @SuppressWarnings("deprecation") 1000 @Override 1001 public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 1002 if (index < 0 || index + count > text.length || count * 2 > pos.length) { 1003 throw new IndexOutOfBoundsException(); 1004 } 1005 1006 int modifiers = setupModifiers(paint); 1007 try { 1008 nDrawPosText(mRenderer, text, index, count, pos, paint.mNativePaint); 1009 } finally { 1010 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1011 } 1012 } 1013 1014 private static native void nDrawPosText(int renderer, char[] text, int index, int count, 1015 float[] pos, int paint); 1016 1017 @SuppressWarnings("deprecation") 1018 @Override 1019 public void drawPosText(String text, float[] pos, Paint paint) { 1020 if (text.length() * 2 > pos.length) { 1021 throw new ArrayIndexOutOfBoundsException(); 1022 } 1023 1024 int modifiers = setupModifiers(paint); 1025 try { 1026 nDrawPosText(mRenderer, text, 0, text.length(), pos, paint.mNativePaint); 1027 } finally { 1028 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1029 } 1030 } 1031 1032 private static native void nDrawPosText(int renderer, String text, int start, int end, 1033 float[] pos, int paint); 1034 1035 @Override 1036 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 1037 int modifiers = setupModifiers(paint); 1038 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 1039 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1040 } 1041 1042 private static native void nDrawRect(int renderer, float left, float top, 1043 float right, float bottom, int paint); 1044 1045 @Override 1046 public void drawRect(Rect r, Paint paint) { 1047 drawRect(r.left, r.top, r.right, r.bottom, paint); 1048 } 1049 1050 @Override 1051 public void drawRect(RectF r, Paint paint) { 1052 drawRect(r.left, r.top, r.right, r.bottom, paint); 1053 } 1054 1055 @Override 1056 public void drawRGB(int r, int g, int b) { 1057 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 1058 } 1059 1060 @Override 1061 public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 1062 int modifiers = setupModifiers(paint); 1063 nDrawRoundRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 1064 rx, ry, paint.mNativePaint); 1065 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1066 } 1067 1068 private static native void nDrawRoundRect(int renderer, float left, float top, 1069 float right, float bottom, float rx, float y, int paint); 1070 1071 @Override 1072 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 1073 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 1074 throw new IndexOutOfBoundsException(); 1075 } 1076 1077 int modifiers = setupModifiers(paint); 1078 try { 1079 nDrawText(mRenderer, text, index, count, x, y, paint.mBidiFlags, paint.mNativePaint); 1080 } finally { 1081 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1082 } 1083 } 1084 1085 private static native void nDrawText(int renderer, char[] text, int index, int count, 1086 float x, float y, int bidiFlags, int paint); 1087 1088 @Override 1089 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 1090 int modifiers = setupModifiers(paint); 1091 try { 1092 if (text instanceof String || text instanceof SpannedString || 1093 text instanceof SpannableString) { 1094 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 1095 paint.mNativePaint); 1096 } else if (text instanceof GraphicsOperations) { 1097 ((GraphicsOperations) text).drawText(this, start, end, x, y, 1098 paint); 1099 } else { 1100 char[] buf = TemporaryBuffer.obtain(end - start); 1101 TextUtils.getChars(text, start, end, buf, 0); 1102 nDrawText(mRenderer, buf, 0, end - start, x, y, 1103 paint.mBidiFlags, paint.mNativePaint); 1104 TemporaryBuffer.recycle(buf); 1105 } 1106 } finally { 1107 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1108 } 1109 } 1110 1111 @Override 1112 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 1113 if ((start | end | (end - start) | (text.length() - end)) < 0) { 1114 throw new IndexOutOfBoundsException(); 1115 } 1116 1117 int modifiers = setupModifiers(paint); 1118 try { 1119 nDrawText(mRenderer, text, start, end, x, y, paint.mBidiFlags, paint.mNativePaint); 1120 } finally { 1121 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1122 } 1123 } 1124 1125 private static native void nDrawText(int renderer, String text, int start, int end, 1126 float x, float y, int bidiFlags, int paint); 1127 1128 @Override 1129 public void drawText(String text, float x, float y, Paint paint) { 1130 int modifiers = setupModifiers(paint); 1131 try { 1132 nDrawText(mRenderer, text, 0, text.length(), x, y, paint.mBidiFlags, 1133 paint.mNativePaint); 1134 } finally { 1135 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1136 } 1137 } 1138 1139 @Override 1140 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 1141 float vOffset, Paint paint) { 1142 // TODO: Implement 1143 } 1144 1145 @Override 1146 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 1147 // TODO: Implement 1148 } 1149 1150 @Override 1151 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 1152 float x, float y, int dir, Paint paint) { 1153 if ((index | count | text.length - index - count) < 0) { 1154 throw new IndexOutOfBoundsException(); 1155 } 1156 if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 1157 throw new IllegalArgumentException("Unknown direction: " + dir); 1158 } 1159 1160 int modifiers = setupModifiers(paint); 1161 try { 1162 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, dir, 1163 paint.mNativePaint); 1164 } finally { 1165 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1166 } 1167 } 1168 1169 private static native void nDrawTextRun(int renderer, char[] text, int index, int count, 1170 int contextIndex, int contextCount, float x, float y, int dir, int nativePaint); 1171 1172 @Override 1173 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 1174 float x, float y, int dir, Paint paint) { 1175 if ((start | end | end - start | text.length() - end) < 0) { 1176 throw new IndexOutOfBoundsException(); 1177 } 1178 1179 int modifiers = setupModifiers(paint); 1180 try { 1181 int flags = dir == 0 ? 0 : 1; 1182 if (text instanceof String || text instanceof SpannedString || 1183 text instanceof SpannableString) { 1184 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 1185 contextEnd, x, y, flags, paint.mNativePaint); 1186 } else if (text instanceof GraphicsOperations) { 1187 ((GraphicsOperations) text).drawTextRun(this, start, end, 1188 contextStart, contextEnd, x, y, flags, paint); 1189 } else { 1190 int contextLen = contextEnd - contextStart; 1191 int len = end - start; 1192 char[] buf = TemporaryBuffer.obtain(contextLen); 1193 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 1194 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 1195 x, y, flags, paint.mNativePaint); 1196 TemporaryBuffer.recycle(buf); 1197 } 1198 } finally { 1199 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1200 } 1201 } 1202 1203 private static native void nDrawTextRun(int renderer, String text, int start, int end, 1204 int contextStart, int contextEnd, float x, float y, int flags, int nativePaint); 1205 1206 @Override 1207 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 1208 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 1209 int indexOffset, int indexCount, Paint paint) { 1210 // TODO: Implement 1211 } 1212 1213 private int setupModifiers(Bitmap b, Paint paint) { 1214 if (b.getConfig() == Bitmap.Config.ALPHA_8) { 1215 return setupModifiers(paint); 1216 } 1217 1218 final ColorFilter filter = paint.getColorFilter(); 1219 if (filter != null) { 1220 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1221 return MODIFIER_COLOR_FILTER; 1222 } 1223 1224 return MODIFIER_NONE; 1225 } 1226 1227 private int setupModifiers(Paint paint) { 1228 int modifiers = MODIFIER_NONE; 1229 1230 if (paint.hasShadow) { 1231 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 1232 paint.shadowColor); 1233 modifiers |= MODIFIER_SHADOW; 1234 } 1235 1236 final Shader shader = paint.getShader(); 1237 if (shader != null) { 1238 nSetupShader(mRenderer, shader.native_shader); 1239 modifiers |= MODIFIER_SHADER; 1240 } 1241 1242 final ColorFilter filter = paint.getColorFilter(); 1243 if (filter != null) { 1244 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1245 modifiers |= MODIFIER_COLOR_FILTER; 1246 } 1247 1248 return modifiers; 1249 } 1250 1251 private int setupColorFilter(Paint paint) { 1252 final ColorFilter filter = paint.getColorFilter(); 1253 if (filter != null) { 1254 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1255 return MODIFIER_COLOR_FILTER; 1256 } 1257 return MODIFIER_NONE; 1258 } 1259 1260 private static native void nSetupShader(int renderer, int shader); 1261 private static native void nSetupColorFilter(int renderer, int colorFilter); 1262 private static native void nSetupShadow(int renderer, float radius, 1263 float dx, float dy, int color); 1264 1265 private static native void nResetModifiers(int renderer, int modifiers); 1266} 1267