GLES20Canvas.java revision 2b1847ea60650a9f68372abe860415f18b55081d
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.Path; 26import android.graphics.Picture; 27import android.graphics.PorterDuff; 28import android.graphics.Rect; 29import android.graphics.RectF; 30import android.graphics.Region; 31import android.graphics.Shader; 32import android.graphics.TemporaryBuffer; 33import android.text.GraphicsOperations; 34import android.text.SpannableString; 35import android.text.SpannedString; 36import android.text.TextUtils; 37 38/** 39 * An implementation of Canvas on top of OpenGL ES 2.0. 40 */ 41class GLES20Canvas extends HardwareCanvas { 42 private final boolean mOpaque; 43 private int mRenderer; 44 45 // The native renderer will be destroyed when this object dies. 46 // DO NOT overwrite this reference once it is set. 47 private CanvasFinalizer mFinalizer; 48 49 private int mWidth; 50 private int mHeight; 51 52 private final float[] mPoint = new float[2]; 53 private final float[] mLine = new float[4]; 54 55 private final Rect mClipBounds = new Rect(); 56 57 private DrawFilter mFilter; 58 59 /////////////////////////////////////////////////////////////////////////// 60 // JNI 61 /////////////////////////////////////////////////////////////////////////// 62 63 private static native boolean nIsAvailable(); 64 private static boolean sIsAvailable = nIsAvailable(); 65 66 static boolean isAvailable() { 67 return sIsAvailable; 68 } 69 70 /////////////////////////////////////////////////////////////////////////// 71 // Constructors 72 /////////////////////////////////////////////////////////////////////////// 73 74 /** 75 * Creates a canvas to render directly on screen. 76 */ 77 GLES20Canvas(boolean translucent) { 78 this(false, translucent); 79 } 80 81 /** 82 * Creates a canvas to render into an FBO. 83 */ 84 GLES20Canvas(int layer, boolean translucent) { 85 mOpaque = !translucent; 86 mRenderer = nCreateLayerRenderer(layer); 87 setupFinalizer(); 88 } 89 90 protected GLES20Canvas(boolean record, boolean translucent) { 91 mOpaque = !translucent; 92 93 setupRenderer(record); 94 } 95 96 protected void setupRenderer(boolean record) { 97 if (record) { 98 mRenderer = nGetDisplayListRenderer(mRenderer); 99 } else { 100 mRenderer = nCreateRenderer(); 101 } 102 103 setupFinalizer(); 104 } 105 106 private void setupFinalizer() { 107 if (mRenderer == 0) { 108 throw new IllegalStateException("Could not create GLES20Canvas renderer"); 109 } else { 110 mFinalizer = CanvasFinalizer.getFinalizer(mFinalizer, mRenderer); 111 } 112 } 113 114 private static native int nCreateRenderer(); 115 private static native int nCreateLayerRenderer(int layer); 116 private static native int nGetDisplayListRenderer(int renderer); 117 private static native void nDestroyRenderer(int renderer); 118 119 private static class CanvasFinalizer { 120 int mRenderer; 121 122 // Factory method returns new instance if old one is null, or old instance 123 // otherwise, destroying native renderer along the way as necessary 124 static CanvasFinalizer getFinalizer(CanvasFinalizer oldFinalizer, int renderer) { 125 if (oldFinalizer == null) { 126 return new CanvasFinalizer(renderer); 127 } 128 oldFinalizer.replaceNativeObject(renderer); 129 return oldFinalizer; 130 } 131 132 private CanvasFinalizer(int renderer) { 133 mRenderer = renderer; 134 } 135 136 private void replaceNativeObject(int newRenderer) { 137 if (mRenderer != 0 && newRenderer != mRenderer) { 138 nDestroyRenderer(mRenderer); 139 } 140 mRenderer = newRenderer; 141 } 142 143 @Override 144 protected void finalize() throws Throwable { 145 try { 146 replaceNativeObject(0); 147 } finally { 148 super.finalize(); 149 } 150 } 151 } 152 153 /////////////////////////////////////////////////////////////////////////// 154 // Hardware layers 155 /////////////////////////////////////////////////////////////////////////// 156 157 static native int nCreateLayer(int width, int height, boolean isOpaque, int[] layerInfo); 158 static native void nResizeLayer(int layerId, int width, int height, int[] layerInfo); 159 static native void nDestroyLayer(int layerId); 160 static native void nDestroyLayerDeferred(int layerId); 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 /////////////////////////////////////////////////////////////////////////// 182 // Setup 183 /////////////////////////////////////////////////////////////////////////// 184 185 @Override 186 public void setViewport(int width, int height) { 187 mWidth = width; 188 mHeight = height; 189 190 nSetViewport(mRenderer, width, height); 191 } 192 193 private static native void nSetViewport(int renderer, int width, int height); 194 195 /** 196 * @hide 197 */ 198 public static boolean preserveBackBuffer() { 199 return nPreserveBackBuffer(); 200 } 201 202 private static native boolean nPreserveBackBuffer(); 203 204 @Override 205 void onPreDraw(Rect dirty) { 206 if (dirty != null) { 207 nPrepareDirty(mRenderer, dirty.left, dirty.top, dirty.right, dirty.bottom, mOpaque); 208 } else { 209 nPrepare(mRenderer, mOpaque); 210 } 211 } 212 213 private static native void nPrepare(int renderer, boolean opaque); 214 private static native void nPrepareDirty(int renderer, int left, int top, int right, int bottom, 215 boolean opaque); 216 217 @Override 218 void onPostDraw() { 219 nFinish(mRenderer); 220 } 221 222 private static native void nFinish(int renderer); 223 224 @Override 225 public boolean callDrawGLFunction(int drawGLFunction) { 226 return nCallDrawGLFunction(mRenderer, drawGLFunction); 227 } 228 229 private static native boolean nCallDrawGLFunction(int renderer, int drawGLFunction); 230 231 /////////////////////////////////////////////////////////////////////////// 232 // Display list 233 /////////////////////////////////////////////////////////////////////////// 234 235 int getDisplayList() { 236 return nGetDisplayList(mRenderer); 237 } 238 239 private static native int nGetDisplayList(int renderer); 240 241 static void destroyDisplayList(int displayList) { 242 nDestroyDisplayList(displayList); 243 } 244 245 private static native void nDestroyDisplayList(int displayList); 246 247 @Override 248 public boolean drawDisplayList(DisplayList displayList) { 249 return nDrawDisplayList(mRenderer, ((GLES20DisplayList) displayList).mNativeDisplayList); 250 } 251 252 private static native boolean nDrawDisplayList(int renderer, int displayList); 253 254 /////////////////////////////////////////////////////////////////////////// 255 // Hardware layer 256 /////////////////////////////////////////////////////////////////////////// 257 258 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 259 final GLES20Layer glLayer = (GLES20Layer) layer; 260 boolean hasColorFilter = paint != null && setupColorFilter(paint); 261 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 262 nDrawLayer(mRenderer, glLayer.getLayer(), x, y, nativePaint); 263 if (hasColorFilter) nResetModifiers(mRenderer); 264 } 265 266 private static native void nDrawLayer(int renderer, int layer, float x, float y, int paint); 267 268 void interrupt() { 269 nInterrupt(mRenderer); 270 } 271 272 void resume() { 273 nResume(mRenderer); 274 } 275 276 private static native void nInterrupt(int renderer); 277 private static native void nResume(int renderer); 278 279 /////////////////////////////////////////////////////////////////////////// 280 // Clipping 281 /////////////////////////////////////////////////////////////////////////// 282 283 @Override 284 public boolean clipPath(Path path) { 285 throw new UnsupportedOperationException(); 286 } 287 288 @Override 289 public boolean clipPath(Path path, Region.Op op) { 290 throw new UnsupportedOperationException(); 291 } 292 293 @Override 294 public boolean clipRect(float left, float top, float right, float bottom) { 295 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 296 } 297 298 private static native boolean nClipRect(int renderer, float left, float top, 299 float right, float bottom, int op); 300 301 @Override 302 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 303 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 304 } 305 306 @Override 307 public boolean clipRect(int left, int top, int right, int bottom) { 308 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 309 } 310 311 private static native boolean nClipRect(int renderer, int left, int top, int right, int bottom, 312 int op); 313 314 @Override 315 public boolean clipRect(Rect rect) { 316 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 317 Region.Op.INTERSECT.nativeInt); 318 } 319 320 @Override 321 public boolean clipRect(Rect rect, Region.Op op) { 322 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 323 } 324 325 @Override 326 public boolean clipRect(RectF rect) { 327 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 328 Region.Op.INTERSECT.nativeInt); 329 } 330 331 @Override 332 public boolean clipRect(RectF rect, Region.Op op) { 333 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 334 } 335 336 @Override 337 public boolean clipRegion(Region region) { 338 throw new UnsupportedOperationException(); 339 } 340 341 @Override 342 public boolean clipRegion(Region region, Region.Op op) { 343 throw new UnsupportedOperationException(); 344 } 345 346 @Override 347 public boolean getClipBounds(Rect bounds) { 348 return nGetClipBounds(mRenderer, bounds); 349 } 350 351 private static native boolean nGetClipBounds(int renderer, Rect bounds); 352 353 @Override 354 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 355 return nQuickReject(mRenderer, left, top, right, bottom, type.nativeInt); 356 } 357 358 private static native boolean nQuickReject(int renderer, float left, float top, 359 float right, float bottom, int edge); 360 361 @Override 362 public boolean quickReject(Path path, EdgeType type) { 363 throw new UnsupportedOperationException(); 364 } 365 366 @Override 367 public boolean quickReject(RectF rect, EdgeType type) { 368 return quickReject(rect.left, rect.top, rect.right, rect.bottom, type); 369 } 370 371 /////////////////////////////////////////////////////////////////////////// 372 // Transformations 373 /////////////////////////////////////////////////////////////////////////// 374 375 @Override 376 public void translate(float dx, float dy) { 377 if (dx != 0.0f || dy != 0.0f) nTranslate(mRenderer, dx, dy); 378 } 379 380 private static native void nTranslate(int renderer, float dx, float dy); 381 382 @Override 383 public void skew(float sx, float sy) { 384 nSkew(mRenderer, sx, sy); 385 } 386 387 private static native void nSkew(int renderer, float sx, float sy); 388 389 @Override 390 public void rotate(float degrees) { 391 nRotate(mRenderer, degrees); 392 } 393 394 private static native void nRotate(int renderer, float degrees); 395 396 @Override 397 public void scale(float sx, float sy) { 398 nScale(mRenderer, sx, sy); 399 } 400 401 private static native void nScale(int renderer, float sx, float sy); 402 403 @Override 404 public void setMatrix(Matrix matrix) { 405 nSetMatrix(mRenderer, matrix.native_instance); 406 } 407 408 private static native void nSetMatrix(int renderer, int matrix); 409 410 @Override 411 public int getNativeMatrix() { 412 return nGetMatrix(mRenderer); 413 } 414 415 private static native int nGetMatrix(int renderer); 416 417 @Override 418 public void getMatrix(Matrix matrix) { 419 nGetMatrix(mRenderer, matrix.native_instance); 420 } 421 422 private static native void nGetMatrix(int renderer, int matrix); 423 424 @Override 425 public void concat(Matrix matrix) { 426 nConcatMatrix(mRenderer, matrix.native_instance); 427 } 428 429 private static native void nConcatMatrix(int renderer, int matrix); 430 431 /////////////////////////////////////////////////////////////////////////// 432 // State management 433 /////////////////////////////////////////////////////////////////////////// 434 435 @Override 436 public int save() { 437 return nSave(mRenderer, Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG); 438 } 439 440 @Override 441 public int save(int saveFlags) { 442 return nSave(mRenderer, saveFlags); 443 } 444 445 private static native int nSave(int renderer, int flags); 446 447 @Override 448 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 449 return saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, paint, saveFlags); 450 } 451 452 @Override 453 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 454 int saveFlags) { 455 if (left < right && top < bottom) { 456 boolean hasColorFilter = paint != null && setupColorFilter(paint); 457 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 458 int count = nSaveLayer(mRenderer, left, top, right, bottom, nativePaint, saveFlags); 459 if (hasColorFilter) nResetModifiers(mRenderer); 460 return count; 461 } 462 return save(saveFlags); 463 } 464 465 private static native int nSaveLayer(int renderer, float left, float top, 466 float right, float bottom, int paint, int saveFlags); 467 468 @Override 469 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 470 return saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 471 alpha, saveFlags); 472 } 473 474 @Override 475 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 476 int saveFlags) { 477 if (left < right && top < bottom) { 478 return nSaveLayerAlpha(mRenderer, left, top, right, bottom, alpha, saveFlags); 479 } 480 return save(saveFlags); 481 } 482 483 private static native int nSaveLayerAlpha(int renderer, float left, float top, float right, 484 float bottom, int alpha, int saveFlags); 485 486 @Override 487 public void restore() { 488 nRestore(mRenderer); 489 } 490 491 private static native void nRestore(int renderer); 492 493 @Override 494 public void restoreToCount(int saveCount) { 495 nRestoreToCount(mRenderer, saveCount); 496 } 497 498 private static native void nRestoreToCount(int renderer, int saveCount); 499 500 @Override 501 public int getSaveCount() { 502 return nGetSaveCount(mRenderer); 503 } 504 505 private static native int nGetSaveCount(int renderer); 506 507 /////////////////////////////////////////////////////////////////////////// 508 // Filtering 509 /////////////////////////////////////////////////////////////////////////// 510 511 @Override 512 public void setDrawFilter(DrawFilter filter) { 513 mFilter = filter; 514 } 515 516 @Override 517 public DrawFilter getDrawFilter() { 518 return mFilter; 519 } 520 521 /////////////////////////////////////////////////////////////////////////// 522 // Drawing 523 /////////////////////////////////////////////////////////////////////////// 524 525 @Override 526 public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 527 Paint paint) { 528 boolean hasModifier = setupModifiers(paint); 529 nDrawArc(mRenderer, oval.left, oval.top, oval.right, oval.bottom, startAngle, sweepAngle, 530 useCenter, paint.mNativePaint); 531 if (hasModifier) nResetModifiers(mRenderer); 532 } 533 534 private static native void nDrawArc(int renderer, float left, float top, 535 float right, float bottom, float startAngle, float sweepAngle, 536 boolean useCenter, int paint); 537 538 @Override 539 public void drawARGB(int a, int r, int g, int b) { 540 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 541 } 542 543 @Override 544 public void drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint) { 545 // Shaders are ignored when drawing patches 546 boolean hasColorFilter = paint != null && setupColorFilter(paint); 547 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 548 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, chunks, 549 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 550 if (hasColorFilter) nResetModifiers(mRenderer); 551 } 552 553 private static native void nDrawPatch(int renderer, int bitmap, byte[] buffer, byte[] chunks, 554 float left, float top, float right, float bottom, int paint); 555 556 @Override 557 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 558 // Shaders are ignored when drawing bitmaps 559 boolean hasColorFilter = paint != null && setupColorFilter(paint); 560 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 561 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 562 if (hasColorFilter) nResetModifiers(mRenderer); 563 } 564 565 private static native void nDrawBitmap( 566 int renderer, int bitmap, byte[] buffer, float left, float top, int paint); 567 568 @Override 569 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 570 // Shaders are ignored when drawing bitmaps 571 boolean hasColorFilter = paint != null && setupColorFilter(paint); 572 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 573 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 574 matrix.native_instance, nativePaint); 575 if (hasColorFilter) nResetModifiers(mRenderer); 576 } 577 578 private static native void nDrawBitmap(int renderer, int bitmap, byte[] buff, 579 int matrix, int paint); 580 581 @Override 582 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 583 // Shaders are ignored when drawing bitmaps 584 boolean hasColorFilter = paint != null && setupColorFilter(paint); 585 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 586 587 int left, top, right, bottom; 588 if (src == null) { 589 left = top = 0; 590 right = bitmap.getWidth(); 591 bottom = bitmap.getHeight(); 592 } else { 593 left = src.left; 594 right = src.right; 595 top = src.top; 596 bottom = src.bottom; 597 } 598 599 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 600 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 601 if (hasColorFilter) nResetModifiers(mRenderer); 602 } 603 604 @Override 605 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 606 // Shaders are ignored when drawing bitmaps 607 boolean hasColorFilter = paint != null && setupColorFilter(paint); 608 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 609 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, src.left, src.top, src.right, 610 src.bottom, dst.left, dst.top, dst.right, dst.bottom, nativePaint); 611 if (hasColorFilter) nResetModifiers(mRenderer); 612 } 613 614 private static native void nDrawBitmap(int renderer, int bitmap, byte[] buffer, 615 float srcLeft, float srcTop, float srcRight, float srcBottom, 616 float left, float top, float right, float bottom, int paint); 617 618 @Override 619 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 620 int width, int height, boolean hasAlpha, Paint paint) { 621 // Shaders are ignored when drawing bitmaps 622 boolean hasColorFilter = paint != null && setupColorFilter(paint); 623 final Bitmap.Config config = hasAlpha ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565; 624 final Bitmap b = Bitmap.createBitmap(colors, offset, stride, width, height, config); 625 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 626 nDrawBitmap(mRenderer, b.mNativeBitmap, b.mBuffer, x, y, nativePaint); 627 b.recycle(); 628 if (hasColorFilter) nResetModifiers(mRenderer); 629 } 630 631 @Override 632 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 633 int width, int height, boolean hasAlpha, Paint paint) { 634 // Shaders are ignored when drawing bitmaps 635 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 636 } 637 638 @Override 639 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 640 int vertOffset, int[] colors, int colorOffset, Paint paint) { 641 if (meshWidth < 0 || meshHeight < 0 || vertOffset < 0 || colorOffset < 0) { 642 throw new ArrayIndexOutOfBoundsException(); 643 } 644 645 if (meshWidth == 0 || meshHeight == 0) { 646 return; 647 } 648 649 final int count = (meshWidth + 1) * (meshHeight + 1); 650 checkRange(verts.length, vertOffset, count * 2); 651 652 // TODO: Colors are ignored for now 653 colors = null; 654 colorOffset = 0; 655 656 boolean hasColorFilter = paint != null && setupColorFilter(paint); 657 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 658 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 659 verts, vertOffset, colors, colorOffset, nativePaint); 660 if (hasColorFilter) nResetModifiers(mRenderer); 661 } 662 663 private static native void nDrawBitmapMesh(int renderer, int bitmap, byte[] buffer, 664 int meshWidth, int meshHeight, float[] verts, int vertOffset, 665 int[] colors, int colorOffset, int paint); 666 667 @Override 668 public void drawCircle(float cx, float cy, float radius, Paint paint) { 669 boolean hasModifier = setupModifiers(paint); 670 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 671 if (hasModifier) nResetModifiers(mRenderer); 672 } 673 674 private static native void nDrawCircle(int renderer, float cx, float cy, 675 float radius, int paint); 676 677 @Override 678 public void drawColor(int color) { 679 drawColor(color, PorterDuff.Mode.SRC_OVER); 680 } 681 682 @Override 683 public void drawColor(int color, PorterDuff.Mode mode) { 684 nDrawColor(mRenderer, color, mode.nativeInt); 685 } 686 687 private static native void nDrawColor(int renderer, int color, int mode); 688 689 @Override 690 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 691 mLine[0] = startX; 692 mLine[1] = startY; 693 mLine[2] = stopX; 694 mLine[3] = stopY; 695 drawLines(mLine, 0, 4, paint); 696 } 697 698 @Override 699 public void drawLines(float[] pts, int offset, int count, Paint paint) { 700 if ((offset | count) < 0 || offset + count > pts.length) { 701 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 702 } 703 boolean hasModifier = setupModifiers(paint); 704 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 705 if (hasModifier) nResetModifiers(mRenderer); 706 } 707 708 private static native void nDrawLines(int renderer, float[] points, 709 int offset, int count, int paint); 710 711 @Override 712 public void drawLines(float[] pts, Paint paint) { 713 drawLines(pts, 0, pts.length, paint); 714 } 715 716 @Override 717 public void drawOval(RectF oval, Paint paint) { 718 boolean hasModifier = setupModifiers(paint); 719 nDrawOval(mRenderer, oval.left, oval.top, oval.right, oval.bottom, paint.mNativePaint); 720 if (hasModifier) nResetModifiers(mRenderer); 721 } 722 723 private static native void nDrawOval(int renderer, float left, float top, 724 float right, float bottom, int paint); 725 726 @Override 727 public void drawPaint(Paint paint) { 728 final Rect r = mClipBounds; 729 nGetClipBounds(mRenderer, r); 730 drawRect(r.left, r.top, r.right, r.bottom, paint); 731 } 732 733 @Override 734 public void drawPath(Path path, Paint paint) { 735 boolean hasModifier = setupModifiers(paint); 736 if (path.isSimplePath) { 737 if (path.rects != null) { 738 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 739 } 740 } else { 741 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 742 } 743 if (hasModifier) nResetModifiers(mRenderer); 744 } 745 746 private static native void nDrawPath(int renderer, int path, int paint); 747 private static native void nDrawRects(int renderer, int region, int paint); 748 749 @Override 750 public void drawPicture(Picture picture) { 751 throw new UnsupportedOperationException(); 752 } 753 754 @Override 755 public void drawPicture(Picture picture, Rect dst) { 756 throw new UnsupportedOperationException(); 757 } 758 759 @Override 760 public void drawPicture(Picture picture, RectF dst) { 761 throw new UnsupportedOperationException(); 762 } 763 764 @Override 765 public void drawPoint(float x, float y, Paint paint) { 766 mPoint[0] = x; 767 mPoint[1] = y; 768 drawPoints(mPoint, 0, 1, paint); 769 } 770 771 @Override 772 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 773 // TODO: Implement 774 } 775 776 @Override 777 public void drawPoints(float[] pts, Paint paint) { 778 drawPoints(pts, 0, pts.length / 2, paint); 779 } 780 781 @Override 782 public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 783 // TODO: Implement 784 } 785 786 @Override 787 public void drawPosText(String text, float[] pos, Paint paint) { 788 // TODO: Implement 789 } 790 791 @Override 792 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 793 boolean hasModifier = setupModifiers(paint); 794 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 795 if (hasModifier) nResetModifiers(mRenderer); 796 } 797 798 private static native void nDrawRect(int renderer, float left, float top, 799 float right, float bottom, int paint); 800 801 @Override 802 public void drawRect(Rect r, Paint paint) { 803 drawRect(r.left, r.top, r.right, r.bottom, paint); 804 } 805 806 @Override 807 public void drawRect(RectF r, Paint paint) { 808 drawRect(r.left, r.top, r.right, r.bottom, paint); 809 } 810 811 @Override 812 public void drawRGB(int r, int g, int b) { 813 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 814 } 815 816 @Override 817 public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 818 boolean hasModifier = setupModifiers(paint); 819 nDrawRoundRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 820 rx, ry, paint.mNativePaint); 821 if (hasModifier) nResetModifiers(mRenderer); 822 } 823 824 private static native void nDrawRoundRect(int renderer, float left, float top, 825 float right, float bottom, float rx, float y, int paint); 826 827 @Override 828 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 829 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 830 throw new IndexOutOfBoundsException(); 831 } 832 833 boolean hasModifier = setupModifiers(paint); 834 try { 835 nDrawText(mRenderer, text, index, count, x, y, paint.mBidiFlags, paint.mNativePaint); 836 } finally { 837 if (hasModifier) nResetModifiers(mRenderer); 838 } 839 } 840 841 private static native void nDrawText(int renderer, char[] text, int index, int count, 842 float x, float y, int bidiFlags, int paint); 843 844 @Override 845 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 846 boolean hasModifier = setupModifiers(paint); 847 try { 848 if (text instanceof String || text instanceof SpannedString || 849 text instanceof SpannableString) { 850 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 851 paint.mNativePaint); 852 } else if (text instanceof GraphicsOperations) { 853 ((GraphicsOperations) text).drawText(this, start, end, x, y, 854 paint); 855 } else { 856 char[] buf = TemporaryBuffer.obtain(end - start); 857 TextUtils.getChars(text, start, end, buf, 0); 858 nDrawText(mRenderer, buf, 0, end - start, x, y, 859 paint.mBidiFlags, paint.mNativePaint); 860 TemporaryBuffer.recycle(buf); 861 } 862 } finally { 863 if (hasModifier) nResetModifiers(mRenderer); 864 } 865 } 866 867 @Override 868 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 869 if ((start | end | (end - start) | (text.length() - end)) < 0) { 870 throw new IndexOutOfBoundsException(); 871 } 872 873 boolean hasModifier = setupModifiers(paint); 874 try { 875 nDrawText(mRenderer, text, start, end, x, y, paint.mBidiFlags, paint.mNativePaint); 876 } finally { 877 if (hasModifier) nResetModifiers(mRenderer); 878 } 879 } 880 881 private static native void nDrawText(int renderer, String text, int start, int end, 882 float x, float y, int bidiFlags, int paint); 883 884 @Override 885 public void drawText(String text, float x, float y, Paint paint) { 886 boolean hasModifier = setupModifiers(paint); 887 try { 888 nDrawText(mRenderer, text, 0, text.length(), x, y, paint.mBidiFlags, 889 paint.mNativePaint); 890 } finally { 891 if (hasModifier) nResetModifiers(mRenderer); 892 } 893 } 894 895 @Override 896 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 897 float vOffset, Paint paint) { 898 // TODO: Implement 899 } 900 901 @Override 902 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 903 // TODO: Implement 904 } 905 906 @Override 907 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 908 float x, float y, int dir, Paint paint) { 909 if ((index | count | text.length - index - count) < 0) { 910 throw new IndexOutOfBoundsException(); 911 } 912 if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 913 throw new IllegalArgumentException("Unknown direction: " + dir); 914 } 915 916 boolean hasModifier = setupModifiers(paint); 917 try { 918 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, dir, 919 paint.mNativePaint); 920 } finally { 921 if (hasModifier) nResetModifiers(mRenderer); 922 } 923 } 924 925 private static native void nDrawTextRun(int renderer, char[] text, int index, int count, 926 int contextIndex, int contextCount, float x, float y, int dir, int nativePaint); 927 928 @Override 929 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 930 float x, float y, int dir, Paint paint) { 931 if ((start | end | end - start | text.length() - end) < 0) { 932 throw new IndexOutOfBoundsException(); 933 } 934 935 boolean hasModifier = setupModifiers(paint); 936 try { 937 int flags = dir == 0 ? 0 : 1; 938 if (text instanceof String || text instanceof SpannedString || 939 text instanceof SpannableString) { 940 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 941 contextEnd, x, y, flags, paint.mNativePaint); 942 } else if (text instanceof GraphicsOperations) { 943 ((GraphicsOperations) text).drawTextRun(this, start, end, 944 contextStart, contextEnd, x, y, flags, paint); 945 } else { 946 int contextLen = contextEnd - contextStart; 947 int len = end - start; 948 char[] buf = TemporaryBuffer.obtain(contextLen); 949 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 950 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 951 x, y, flags, paint.mNativePaint); 952 TemporaryBuffer.recycle(buf); 953 } 954 } finally { 955 if (hasModifier) nResetModifiers(mRenderer); 956 } 957 } 958 959 private static native void nDrawTextRun(int renderer, String text, int start, int end, 960 int contextStart, int contextEnd, float x, float y, int flags, int nativePaint); 961 962 @Override 963 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 964 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 965 int indexOffset, int indexCount, Paint paint) { 966 // TODO: Implement 967 } 968 969 private boolean setupModifiers(Paint paint) { 970 boolean hasModifier = false; 971 972 if (paint.hasShadow) { 973 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 974 paint.shadowColor); 975 hasModifier = true; 976 } 977 978 final Shader shader = paint.getShader(); 979 if (shader != null) { 980 nSetupShader(mRenderer, shader.native_shader); 981 hasModifier = true; 982 } 983 984 final ColorFilter filter = paint.getColorFilter(); 985 if (filter != null) { 986 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 987 hasModifier = true; 988 } 989 990 return hasModifier; 991 } 992 993 private boolean setupColorFilter(Paint paint) { 994 final ColorFilter filter = paint.getColorFilter(); 995 if (filter != null) { 996 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 997 return true; 998 } 999 return false; 1000 } 1001 1002 private static native void nSetupShader(int renderer, int shader); 1003 private static native void nSetupColorFilter(int renderer, int colorFilter); 1004 private static native void nSetupShadow(int renderer, float radius, 1005 float dx, float dy, int color); 1006 1007 private static native void nResetModifiers(int renderer); 1008} 1009