GLES20Canvas.java revision 3f0d6167227d6d2cdd85f7718d92db859b443e92
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 private final boolean mOpaque; 45 protected long mRenderer; 46 47 // The native renderer will be destroyed when this object dies. 48 // DO NOT overwrite this reference once it is set. 49 @SuppressWarnings({"unused", "FieldCanBeLocal"}) 50 private CanvasFinalizer mFinalizer; 51 52 private int mWidth; 53 private int mHeight; 54 55 private float[] mPoint; 56 private float[] mLine; 57 58 private Rect mClipBounds; 59 private RectF mPathBounds; 60 61 private DrawFilter mFilter; 62 63 /////////////////////////////////////////////////////////////////////////// 64 // JNI 65 /////////////////////////////////////////////////////////////////////////// 66 67 private static native boolean nIsAvailable(); 68 private static boolean sIsAvailable = nIsAvailable(); 69 70 static boolean isAvailable() { 71 return sIsAvailable; 72 } 73 74 /////////////////////////////////////////////////////////////////////////// 75 // Constructors 76 /////////////////////////////////////////////////////////////////////////// 77 78 // TODO: Merge with GLES20RecordingCanvas 79 protected GLES20Canvas() { 80 mOpaque = false; 81 mRenderer = nCreateDisplayListRenderer(); 82 setupFinalizer(); 83 } 84 85 private void setupFinalizer() { 86 if (mRenderer == 0) { 87 throw new IllegalStateException("Could not create GLES20Canvas renderer"); 88 } else { 89 mFinalizer = new CanvasFinalizer(mRenderer); 90 } 91 } 92 93 private static native long nCreateDisplayListRenderer(); 94 private static native void nResetDisplayListRenderer(long renderer); 95 private static native void nDestroyRenderer(long renderer); 96 97 private static final class CanvasFinalizer { 98 private final long mRenderer; 99 100 public CanvasFinalizer(long renderer) { 101 mRenderer = renderer; 102 } 103 104 @Override 105 protected void finalize() throws Throwable { 106 try { 107 nDestroyRenderer(mRenderer); 108 } finally { 109 super.finalize(); 110 } 111 } 112 } 113 114 public static void setProperty(String name, String value) { 115 nSetProperty(name, value); 116 } 117 118 private static native void nSetProperty(String name, String value); 119 120 /////////////////////////////////////////////////////////////////////////// 121 // Canvas management 122 /////////////////////////////////////////////////////////////////////////// 123 124 @Override 125 public boolean isOpaque() { 126 return mOpaque; 127 } 128 129 @Override 130 public int getWidth() { 131 return mWidth; 132 } 133 134 @Override 135 public int getHeight() { 136 return mHeight; 137 } 138 139 @Override 140 public int getMaximumBitmapWidth() { 141 return nGetMaximumTextureWidth(); 142 } 143 144 @Override 145 public int getMaximumBitmapHeight() { 146 return nGetMaximumTextureHeight(); 147 } 148 149 private static native int nGetMaximumTextureWidth(); 150 private static native int nGetMaximumTextureHeight(); 151 152 /** 153 * Returns the native OpenGLRenderer object. 154 */ 155 long getRenderer() { 156 return mRenderer; 157 } 158 159 /////////////////////////////////////////////////////////////////////////// 160 // Setup 161 /////////////////////////////////////////////////////////////////////////// 162 163 @Override 164 public void setViewport(int width, int height) { 165 mWidth = width; 166 mHeight = height; 167 168 nSetViewport(mRenderer, width, height); 169 } 170 171 private static native void nSetViewport(long renderer, int width, int height); 172 173 @Override 174 public int onPreDraw(Rect dirty) { 175 if (dirty != null) { 176 return nPrepareDirty(mRenderer, dirty.left, dirty.top, dirty.right, dirty.bottom, 177 mOpaque); 178 } else { 179 return nPrepare(mRenderer, mOpaque); 180 } 181 } 182 183 private static native int nPrepare(long renderer, boolean opaque); 184 private static native int nPrepareDirty(long renderer, int left, int top, int right, int bottom, 185 boolean opaque); 186 187 @Override 188 public void onPostDraw() { 189 nFinish(mRenderer); 190 } 191 192 private static native void nFinish(long renderer); 193 194 /////////////////////////////////////////////////////////////////////////// 195 // Functor 196 /////////////////////////////////////////////////////////////////////////// 197 198 @Override 199 public int callDrawGLFunction(long drawGLFunction) { 200 return nCallDrawGLFunction(mRenderer, drawGLFunction); 201 } 202 203 private static native int nCallDrawGLFunction(long renderer, long drawGLFunction); 204 205 /////////////////////////////////////////////////////////////////////////// 206 // Memory 207 /////////////////////////////////////////////////////////////////////////// 208 209 /** 210 * Must match Caches::FlushMode values 211 * 212 * @see #flushCaches(int) 213 */ 214 static final int FLUSH_CACHES_LAYERS = 0; 215 216 /** 217 * Must match Caches::FlushMode values 218 * 219 * @see #flushCaches(int) 220 */ 221 static final int FLUSH_CACHES_MODERATE = 1; 222 223 /** 224 * Must match Caches::FlushMode values 225 * 226 * @see #flushCaches(int) 227 */ 228 static final int FLUSH_CACHES_FULL = 2; 229 230 /////////////////////////////////////////////////////////////////////////// 231 // Display list 232 /////////////////////////////////////////////////////////////////////////// 233 234 protected static native long nFinishRecording(long renderer); 235 236 @Override 237 public int drawDisplayList(RenderNode displayList, Rect dirty, int flags) { 238 return nDrawDisplayList(mRenderer, displayList.getNativeDisplayList(), 239 dirty, flags); 240 } 241 242 private static native int nDrawDisplayList(long renderer, long displayList, 243 Rect dirty, int flags); 244 245 /////////////////////////////////////////////////////////////////////////// 246 // Hardware layer 247 /////////////////////////////////////////////////////////////////////////// 248 249 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 250 layer.setLayerPaint(paint); 251 nDrawLayer(mRenderer, layer.getLayer(), x, y); 252 } 253 254 private static native void nDrawLayer(long renderer, long layer, float x, float y); 255 256 /////////////////////////////////////////////////////////////////////////// 257 // Support 258 /////////////////////////////////////////////////////////////////////////// 259 260 private Rect getInternalClipBounds() { 261 if (mClipBounds == null) mClipBounds = new Rect(); 262 return mClipBounds; 263 } 264 265 266 private RectF getPathBounds() { 267 if (mPathBounds == null) mPathBounds = new RectF(); 268 return mPathBounds; 269 } 270 271 private float[] getPointStorage() { 272 if (mPoint == null) mPoint = new float[2]; 273 return mPoint; 274 } 275 276 private float[] getLineStorage() { 277 if (mLine == null) mLine = new float[4]; 278 return mLine; 279 } 280 281 /////////////////////////////////////////////////////////////////////////// 282 // Clipping 283 /////////////////////////////////////////////////////////////////////////// 284 285 @Override 286 public boolean clipPath(Path path) { 287 return nClipPath(mRenderer, path.mNativePath, Region.Op.INTERSECT.nativeInt); 288 } 289 290 @Override 291 public boolean clipPath(Path path, Region.Op op) { 292 return nClipPath(mRenderer, path.mNativePath, op.nativeInt); 293 } 294 295 private static native boolean nClipPath(long renderer, long path, int op); 296 297 @Override 298 public boolean clipRect(float left, float top, float right, float bottom) { 299 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 300 } 301 302 private static native boolean nClipRect(long renderer, float left, float top, 303 float right, float bottom, int op); 304 305 @Override 306 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 307 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 308 } 309 310 @Override 311 public boolean clipRect(int left, int top, int right, int bottom) { 312 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 313 } 314 315 private static native boolean nClipRect(long renderer, int left, int top, 316 int right, int bottom, int op); 317 318 @Override 319 public boolean clipRect(Rect rect) { 320 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 321 Region.Op.INTERSECT.nativeInt); 322 } 323 324 @Override 325 public boolean clipRect(Rect rect, Region.Op op) { 326 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 327 } 328 329 @Override 330 public boolean clipRect(RectF rect) { 331 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 332 Region.Op.INTERSECT.nativeInt); 333 } 334 335 @Override 336 public boolean clipRect(RectF rect, Region.Op op) { 337 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 338 } 339 340 @Override 341 public boolean clipRegion(Region region) { 342 return nClipRegion(mRenderer, region.mNativeRegion, Region.Op.INTERSECT.nativeInt); 343 } 344 345 @Override 346 public boolean clipRegion(Region region, Region.Op op) { 347 return nClipRegion(mRenderer, region.mNativeRegion, op.nativeInt); 348 } 349 350 private static native boolean nClipRegion(long renderer, long region, int op); 351 352 @Override 353 public boolean getClipBounds(Rect bounds) { 354 return nGetClipBounds(mRenderer, bounds); 355 } 356 357 private static native boolean nGetClipBounds(long renderer, Rect bounds); 358 359 @Override 360 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 361 return nQuickReject(mRenderer, left, top, right, bottom); 362 } 363 364 private static native boolean nQuickReject(long renderer, float left, float top, 365 float right, float bottom); 366 367 @Override 368 public boolean quickReject(Path path, EdgeType type) { 369 RectF pathBounds = getPathBounds(); 370 path.computeBounds(pathBounds, true); 371 return nQuickReject(mRenderer, pathBounds.left, pathBounds.top, 372 pathBounds.right, pathBounds.bottom); 373 } 374 375 @Override 376 public boolean quickReject(RectF rect, EdgeType type) { 377 return nQuickReject(mRenderer, rect.left, rect.top, rect.right, rect.bottom); 378 } 379 380 /////////////////////////////////////////////////////////////////////////// 381 // Transformations 382 /////////////////////////////////////////////////////////////////////////// 383 384 @Override 385 public void translate(float dx, float dy) { 386 if (dx != 0.0f || dy != 0.0f) nTranslate(mRenderer, dx, dy); 387 } 388 389 private static native void nTranslate(long renderer, float dx, float dy); 390 391 @Override 392 public void skew(float sx, float sy) { 393 nSkew(mRenderer, sx, sy); 394 } 395 396 private static native void nSkew(long renderer, float sx, float sy); 397 398 @Override 399 public void rotate(float degrees) { 400 nRotate(mRenderer, degrees); 401 } 402 403 private static native void nRotate(long renderer, float degrees); 404 405 @Override 406 public void scale(float sx, float sy) { 407 // TODO: remove 408 if (sx > 1000000 || sy > 1000000) throw new IllegalArgumentException("invalid scales passed " + sx + ", " + sy); 409 410 nScale(mRenderer, sx, sy); 411 } 412 413 private static native void nScale(long renderer, float sx, float sy); 414 415 @Override 416 public void setMatrix(Matrix matrix) { 417 nSetMatrix(mRenderer, matrix == null ? 0 : matrix.native_instance); 418 } 419 420 private static native void nSetMatrix(long renderer, long matrix); 421 422 @SuppressWarnings("deprecation") 423 @Override 424 public void getMatrix(Matrix matrix) { 425 nGetMatrix(mRenderer, matrix.native_instance); 426 } 427 428 private static native void nGetMatrix(long renderer, long matrix); 429 430 @Override 431 public void concat(Matrix matrix) { 432 if (matrix != null) nConcatMatrix(mRenderer, matrix.native_instance); 433 } 434 435 private static native void nConcatMatrix(long renderer, long matrix); 436 437 /////////////////////////////////////////////////////////////////////////// 438 // State management 439 /////////////////////////////////////////////////////////////////////////// 440 441 @Override 442 public int save() { 443 return nSave(mRenderer, Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG); 444 } 445 446 @Override 447 public int save(int saveFlags) { 448 return nSave(mRenderer, saveFlags); 449 } 450 451 private static native int nSave(long renderer, int flags); 452 453 @Override 454 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 455 if (bounds != null) { 456 return saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, paint, saveFlags); 457 } 458 459 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 460 return nSaveLayer(mRenderer, nativePaint, saveFlags); 461 } 462 463 private static native int nSaveLayer(long renderer, long paint, int saveFlags); 464 465 @Override 466 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 467 int saveFlags) { 468 if (left < right && top < bottom) { 469 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 470 return nSaveLayer(mRenderer, left, top, right, bottom, nativePaint, saveFlags); 471 } 472 return save(saveFlags); 473 } 474 475 private static native int nSaveLayer(long renderer, float left, float top, 476 float right, float bottom, long paint, int saveFlags); 477 478 @Override 479 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 480 if (bounds != null) { 481 return saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 482 alpha, saveFlags); 483 } 484 return nSaveLayerAlpha(mRenderer, alpha, saveFlags); 485 } 486 487 private static native int nSaveLayerAlpha(long renderer, int alpha, int saveFlags); 488 489 @Override 490 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 491 int saveFlags) { 492 if (left < right && top < bottom) { 493 return nSaveLayerAlpha(mRenderer, left, top, right, bottom, alpha, saveFlags); 494 } 495 return save(saveFlags); 496 } 497 498 private static native int nSaveLayerAlpha(long renderer, float left, float top, float right, 499 float bottom, int alpha, int saveFlags); 500 501 @Override 502 public void restore() { 503 nRestore(mRenderer); 504 } 505 506 private static native void nRestore(long renderer); 507 508 @Override 509 public void restoreToCount(int saveCount) { 510 nRestoreToCount(mRenderer, saveCount); 511 } 512 513 private static native void nRestoreToCount(long renderer, int saveCount); 514 515 @Override 516 public int getSaveCount() { 517 return nGetSaveCount(mRenderer); 518 } 519 520 private static native int nGetSaveCount(long renderer); 521 522 /////////////////////////////////////////////////////////////////////////// 523 // Filtering 524 /////////////////////////////////////////////////////////////////////////// 525 526 @Override 527 public void setDrawFilter(DrawFilter filter) { 528 mFilter = filter; 529 if (filter == null) { 530 nResetPaintFilter(mRenderer); 531 } else if (filter instanceof PaintFlagsDrawFilter) { 532 PaintFlagsDrawFilter flagsFilter = (PaintFlagsDrawFilter) filter; 533 nSetupPaintFilter(mRenderer, flagsFilter.clearBits, flagsFilter.setBits); 534 } 535 } 536 537 private static native void nResetPaintFilter(long renderer); 538 private static native void nSetupPaintFilter(long renderer, int clearBits, int setBits); 539 540 @Override 541 public DrawFilter getDrawFilter() { 542 return mFilter; 543 } 544 545 /////////////////////////////////////////////////////////////////////////// 546 // Drawing 547 /////////////////////////////////////////////////////////////////////////// 548 549 @Override 550 public void drawArc(float left, float top, float right, float bottom, 551 float startAngle, float sweepAngle, boolean useCenter, Paint paint) { 552 nDrawArc(mRenderer, left, top, right, bottom, 553 startAngle, sweepAngle, useCenter, paint.mNativePaint); 554 } 555 556 private static native void nDrawArc(long renderer, float left, float top, 557 float right, float bottom, float startAngle, float sweepAngle, 558 boolean useCenter, long paint); 559 560 @Override 561 public void drawARGB(int a, int r, int g, int b) { 562 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 563 } 564 565 @Override 566 public void drawPatch(NinePatch patch, Rect dst, Paint paint) { 567 Bitmap bitmap = patch.getBitmap(); 568 throwIfCannotDraw(bitmap); 569 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 570 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, patch.mNativeChunk, 571 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 572 } 573 574 @Override 575 public void drawPatch(NinePatch patch, RectF dst, Paint paint) { 576 Bitmap bitmap = patch.getBitmap(); 577 throwIfCannotDraw(bitmap); 578 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 579 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, patch.mNativeChunk, 580 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 581 } 582 583 private static native void nDrawPatch(long renderer, long bitmap, byte[] buffer, long chunk, 584 float left, float top, float right, float bottom, long paint); 585 586 @Override 587 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 588 throwIfCannotDraw(bitmap); 589 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 590 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 591 } 592 593 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 594 float left, float top, long paint); 595 596 @Override 597 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 598 throwIfCannotDraw(bitmap); 599 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 600 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 601 matrix.native_instance, nativePaint); 602 } 603 604 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 605 long matrix, long paint); 606 607 @Override 608 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 609 throwIfCannotDraw(bitmap); 610 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 611 612 int left, top, right, bottom; 613 if (src == null) { 614 left = top = 0; 615 right = bitmap.getWidth(); 616 bottom = bitmap.getHeight(); 617 } else { 618 left = src.left; 619 right = src.right; 620 top = src.top; 621 bottom = src.bottom; 622 } 623 624 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 625 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 626 } 627 628 @Override 629 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 630 throwIfCannotDraw(bitmap); 631 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 632 633 float left, top, right, bottom; 634 if (src == null) { 635 left = top = 0; 636 right = bitmap.getWidth(); 637 bottom = bitmap.getHeight(); 638 } else { 639 left = src.left; 640 right = src.right; 641 top = src.top; 642 bottom = src.bottom; 643 } 644 645 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 646 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 647 } 648 649 private static native void nDrawBitmap(long renderer, long bitmap, byte[] buffer, 650 float srcLeft, float srcTop, float srcRight, float srcBottom, 651 float left, float top, float right, float bottom, long paint); 652 653 @Override 654 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 655 int width, int height, boolean hasAlpha, Paint paint) { 656 if (width < 0) { 657 throw new IllegalArgumentException("width must be >= 0"); 658 } 659 660 if (height < 0) { 661 throw new IllegalArgumentException("height must be >= 0"); 662 } 663 664 if (Math.abs(stride) < width) { 665 throw new IllegalArgumentException("abs(stride) must be >= width"); 666 } 667 668 int lastScanline = offset + (height - 1) * stride; 669 int length = colors.length; 670 671 if (offset < 0 || (offset + width > length) || lastScanline < 0 || 672 (lastScanline + width > length)) { 673 throw new ArrayIndexOutOfBoundsException(); 674 } 675 676 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 677 nDrawBitmap(mRenderer, colors, offset, stride, x, y, 678 width, height, hasAlpha, nativePaint); 679 } 680 681 private static native void nDrawBitmap(long renderer, int[] colors, int offset, int stride, 682 float x, float y, int width, int height, boolean hasAlpha, long nativePaint); 683 684 @Override 685 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 686 int width, int height, boolean hasAlpha, Paint paint) { 687 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 688 } 689 690 @Override 691 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 692 int vertOffset, int[] colors, int colorOffset, Paint paint) { 693 throwIfCannotDraw(bitmap); 694 if (meshWidth < 0 || meshHeight < 0 || vertOffset < 0 || colorOffset < 0) { 695 throw new ArrayIndexOutOfBoundsException(); 696 } 697 698 if (meshWidth == 0 || meshHeight == 0) { 699 return; 700 } 701 702 final int count = (meshWidth + 1) * (meshHeight + 1); 703 checkRange(verts.length, vertOffset, count * 2); 704 705 if (colors != null) { 706 checkRange(colors.length, colorOffset, count); 707 } 708 709 final long nativePaint = paint == null ? 0 : paint.mNativePaint; 710 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 711 verts, vertOffset, colors, colorOffset, nativePaint); 712 } 713 714 private static native void nDrawBitmapMesh(long renderer, long bitmap, byte[] buffer, 715 int meshWidth, int meshHeight, float[] verts, int vertOffset, 716 int[] colors, int colorOffset, long paint); 717 718 @Override 719 public void drawCircle(float cx, float cy, float radius, Paint paint) { 720 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 721 } 722 723 private static native void nDrawCircle(long renderer, float cx, float cy, 724 float radius, long paint); 725 726 @Override 727 public void drawCircle(CanvasProperty<Float> cx, CanvasProperty<Float> cy, 728 CanvasProperty<Float> radius, CanvasProperty<Paint> paint) { 729 nDrawCircle(mRenderer, cx.getNativeContainer(), cy.getNativeContainer(), 730 radius.getNativeContainer(), paint.getNativeContainer()); 731 } 732 733 private static native void nDrawCircle(long renderer, long propCx, 734 long propCy, long propRadius, long propPaint); 735 736 @Override 737 public void drawColor(int color) { 738 drawColor(color, PorterDuff.Mode.SRC_OVER); 739 } 740 741 @Override 742 public void drawColor(int color, PorterDuff.Mode mode) { 743 nDrawColor(mRenderer, color, mode.nativeInt); 744 } 745 746 private static native void nDrawColor(long renderer, int color, int mode); 747 748 @Override 749 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 750 float[] line = getLineStorage(); 751 line[0] = startX; 752 line[1] = startY; 753 line[2] = stopX; 754 line[3] = stopY; 755 drawLines(line, 0, 4, paint); 756 } 757 758 @Override 759 public void drawLines(float[] pts, int offset, int count, Paint paint) { 760 if (count < 4) return; 761 762 if ((offset | count) < 0 || offset + count > pts.length) { 763 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 764 } 765 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 766 } 767 768 private static native void nDrawLines(long renderer, float[] points, 769 int offset, int count, long paint); 770 771 @Override 772 public void drawLines(float[] pts, Paint paint) { 773 drawLines(pts, 0, pts.length, paint); 774 } 775 776 @Override 777 public void drawOval(float left, float top, float right, float bottom, Paint paint) { 778 nDrawOval(mRenderer, left, top, right, bottom, paint.mNativePaint); 779 } 780 781 private static native void nDrawOval(long renderer, float left, float top, 782 float right, float bottom, long paint); 783 784 @Override 785 public void drawPaint(Paint paint) { 786 final Rect r = getInternalClipBounds(); 787 nGetClipBounds(mRenderer, r); 788 drawRect(r.left, r.top, r.right, r.bottom, paint); 789 } 790 791 @Override 792 public void drawPath(Path path, Paint paint) { 793 if (path.isSimplePath) { 794 if (path.rects != null) { 795 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 796 } 797 } else { 798 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 799 } 800 } 801 802 private static native void nDrawPath(long renderer, long path, long paint); 803 private static native void nDrawRects(long renderer, long region, long paint); 804 805 @Override 806 public void drawPicture(Picture picture) { 807 picture.endRecording(); 808 // TODO: Implement rendering 809 } 810 811 @Override 812 public void drawPicture(Picture picture, Rect dst) { 813 save(); 814 translate(dst.left, dst.top); 815 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 816 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 817 } 818 drawPicture(picture); 819 restore(); 820 } 821 822 @Override 823 public void drawPicture(Picture picture, RectF dst) { 824 save(); 825 translate(dst.left, dst.top); 826 if (picture.getWidth() > 0 && picture.getHeight() > 0) { 827 scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 828 } 829 drawPicture(picture); 830 restore(); 831 } 832 833 @Override 834 public void drawPoint(float x, float y, Paint paint) { 835 float[] point = getPointStorage(); 836 point[0] = x; 837 point[1] = y; 838 drawPoints(point, 0, 2, paint); 839 } 840 841 @Override 842 public void drawPoints(float[] pts, Paint paint) { 843 drawPoints(pts, 0, pts.length, paint); 844 } 845 846 @Override 847 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 848 if (count < 2) return; 849 850 nDrawPoints(mRenderer, pts, offset, count, paint.mNativePaint); 851 } 852 853 private static native void nDrawPoints(long renderer, float[] points, 854 int offset, int count, long paint); 855 856 // Note: drawPosText just uses implementation in Canvas 857 858 @Override 859 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 860 if (left == right || top == bottom) return; 861 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 862 } 863 864 private static native void nDrawRect(long renderer, float left, float top, 865 float right, float bottom, long paint); 866 867 @Override 868 public void drawRect(Rect r, Paint paint) { 869 drawRect(r.left, r.top, r.right, r.bottom, paint); 870 } 871 872 @Override 873 public void drawRect(RectF r, Paint paint) { 874 drawRect(r.left, r.top, r.right, r.bottom, paint); 875 } 876 877 @Override 878 public void drawRGB(int r, int g, int b) { 879 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 880 } 881 882 @Override 883 public void drawRoundRect(float left, float top, float right, float bottom, float rx, float ry, 884 Paint paint) { 885 nDrawRoundRect(mRenderer, left, top, right, bottom, rx, ry, paint.mNativePaint); 886 } 887 888 private static native void nDrawRoundRect(long renderer, float left, float top, 889 float right, float bottom, float rx, float y, long paint); 890 891 @Override 892 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 893 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 894 throw new IndexOutOfBoundsException(); 895 } 896 897 nDrawText(mRenderer, text, index, count, x, y, 898 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 899 } 900 901 private static native void nDrawText(long renderer, char[] text, int index, int count, 902 float x, float y, int bidiFlags, long paint, long typeface); 903 904 @Override 905 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 906 if (text instanceof String || text instanceof SpannedString || 907 text instanceof SpannableString) { 908 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 909 paint.mNativePaint, paint.mNativeTypeface); 910 } else if (text instanceof GraphicsOperations) { 911 ((GraphicsOperations) text).drawText(this, start, end, x, y, paint); 912 } else { 913 char[] buf = TemporaryBuffer.obtain(end - start); 914 TextUtils.getChars(text, start, end, buf, 0); 915 nDrawText(mRenderer, buf, 0, end - start, x, y, 916 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 917 TemporaryBuffer.recycle(buf); 918 } 919 } 920 921 @Override 922 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 923 if ((start | end | (end - start) | (text.length() - end)) < 0) { 924 throw new IndexOutOfBoundsException(); 925 } 926 927 nDrawText(mRenderer, text, start, end, x, y, 928 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 929 } 930 931 private static native void nDrawText(long renderer, String text, int start, int end, 932 float x, float y, int bidiFlags, long paint, long typeface); 933 934 @Override 935 public void drawText(String text, float x, float y, Paint paint) { 936 nDrawText(mRenderer, text, 0, text.length(), x, y, 937 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 938 } 939 940 @Override 941 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 942 float vOffset, Paint paint) { 943 if (index < 0 || index + count > text.length) { 944 throw new ArrayIndexOutOfBoundsException(); 945 } 946 947 nDrawTextOnPath(mRenderer, text, index, count, path.mNativePath, hOffset, vOffset, 948 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 949 } 950 951 private static native void nDrawTextOnPath(long renderer, char[] text, int index, int count, 952 long path, float hOffset, float vOffset, int bidiFlags, long nativePaint, 953 long typeface); 954 955 @Override 956 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 957 if (text.length() == 0) return; 958 959 nDrawTextOnPath(mRenderer, text, 0, text.length(), path.mNativePath, hOffset, vOffset, 960 paint.mBidiFlags, paint.mNativePaint, paint.mNativeTypeface); 961 } 962 963 private static native void nDrawTextOnPath(long renderer, String text, int start, int end, 964 long path, float hOffset, float vOffset, int bidiFlags, long nativePaint, 965 long typeface); 966 967 @Override 968 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 969 float x, float y, boolean isRtl, Paint paint) { 970 if ((index | count | text.length - index - count) < 0) { 971 throw new IndexOutOfBoundsException(); 972 } 973 974 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, isRtl, 975 paint.mNativePaint, paint.mNativeTypeface); 976 } 977 978 private static native void nDrawTextRun(long renderer, char[] text, int index, int count, 979 int contextIndex, int contextCount, float x, float y, boolean isRtl, long nativePaint, long nativeTypeface); 980 981 @Override 982 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 983 float x, float y, boolean isRtl, Paint paint) { 984 if ((start | end | end - start | text.length() - end) < 0) { 985 throw new IndexOutOfBoundsException(); 986 } 987 988 if (text instanceof String || text instanceof SpannedString || 989 text instanceof SpannableString) { 990 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 991 contextEnd, x, y, isRtl, paint.mNativePaint, paint.mNativeTypeface); 992 } else if (text instanceof GraphicsOperations) { 993 ((GraphicsOperations) text).drawTextRun(this, start, end, 994 contextStart, contextEnd, x, y, isRtl, paint); 995 } else { 996 int contextLen = contextEnd - contextStart; 997 int len = end - start; 998 char[] buf = TemporaryBuffer.obtain(contextLen); 999 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 1000 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 1001 x, y, isRtl, paint.mNativePaint, paint.mNativeTypeface); 1002 TemporaryBuffer.recycle(buf); 1003 } 1004 } 1005 1006 private static native void nDrawTextRun(long renderer, String text, int start, int end, 1007 int contextStart, int contextEnd, float x, float y, boolean isRtl, long nativePaint, long nativeTypeface); 1008 1009 @Override 1010 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 1011 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 1012 int indexOffset, int indexCount, Paint paint) { 1013 // TODO: Implement 1014 } 1015} 1016