GLES20Canvas.java revision c1cd9ba335b293f11e1082447ef08e474710a05f
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 private boolean mContextLocked; 60 61 /////////////////////////////////////////////////////////////////////////// 62 // JNI 63 /////////////////////////////////////////////////////////////////////////// 64 65 private static native boolean nIsAvailable(); 66 private static boolean sIsAvailable = nIsAvailable(); 67 68 static boolean isAvailable() { 69 return sIsAvailable; 70 } 71 72 /////////////////////////////////////////////////////////////////////////// 73 // Constructors 74 /////////////////////////////////////////////////////////////////////////// 75 76 /** 77 * Creates a canvas to render directly on screen. 78 */ 79 GLES20Canvas(boolean translucent) { 80 this(false, translucent); 81 } 82 83 /** 84 * Creates a canvas to render into an FBO. 85 */ 86 GLES20Canvas(int layer, boolean translucent) { 87 mOpaque = !translucent; 88 mRenderer = nCreateLayerRenderer(layer); 89 setupFinalizer(); 90 } 91 92 protected GLES20Canvas(boolean record, boolean translucent) { 93 mOpaque = !translucent; 94 95 setupRenderer(record); 96 } 97 98 protected void setupRenderer(boolean record) { 99 if (record) { 100 mRenderer = nGetDisplayListRenderer(mRenderer); 101 } else { 102 mRenderer = nCreateRenderer(); 103 } 104 105 setupFinalizer(); 106 } 107 108 private void setupFinalizer() { 109 if (mRenderer == 0) { 110 throw new IllegalStateException("Could not create GLES20Canvas renderer"); 111 } else { 112 mFinalizer = CanvasFinalizer.getFinalizer(mFinalizer, mRenderer); 113 } 114 } 115 116 private static native int nCreateRenderer(); 117 private static native int nCreateLayerRenderer(int layer); 118 private static native int nGetDisplayListRenderer(int renderer); 119 private static native void nDestroyRenderer(int renderer); 120 121 private static class CanvasFinalizer { 122 int mRenderer; 123 124 // Factory method returns new instance if old one is null, or old instance 125 // otherwise, destroying native renderer along the way as necessary 126 static CanvasFinalizer getFinalizer(CanvasFinalizer oldFinalizer, int renderer) { 127 if (oldFinalizer == null) { 128 return new CanvasFinalizer(renderer); 129 } 130 oldFinalizer.replaceNativeObject(renderer); 131 return oldFinalizer; 132 } 133 134 private CanvasFinalizer(int renderer) { 135 mRenderer = renderer; 136 } 137 138 private void replaceNativeObject(int newRenderer) { 139 if (mRenderer != 0 && newRenderer != mRenderer) { 140 nDestroyRenderer(mRenderer); 141 } 142 mRenderer = newRenderer; 143 } 144 145 @Override 146 protected void finalize() throws Throwable { 147 try { 148 replaceNativeObject(0); 149 } finally { 150 super.finalize(); 151 } 152 } 153 } 154 155 /////////////////////////////////////////////////////////////////////////// 156 // Hardware layers 157 /////////////////////////////////////////////////////////////////////////// 158 159 static native int nCreateLayer(int width, int height, boolean isOpaque, int[] layerInfo); 160 static native void nResizeLayer(int layerId, int width, int height, int[] layerInfo); 161 static native void nDestroyLayer(int layerId); 162 static native void nDestroyLayerDeferred(int layerId); 163 164 /////////////////////////////////////////////////////////////////////////// 165 // Canvas management 166 /////////////////////////////////////////////////////////////////////////// 167 168 @Override 169 public boolean isOpaque() { 170 return mOpaque; 171 } 172 173 @Override 174 public int getWidth() { 175 return mWidth; 176 } 177 178 @Override 179 public int getHeight() { 180 return mHeight; 181 } 182 183 /////////////////////////////////////////////////////////////////////////// 184 // Setup 185 /////////////////////////////////////////////////////////////////////////// 186 187 @Override 188 public void setViewport(int width, int height) { 189 mWidth = width; 190 mHeight = height; 191 192 nSetViewport(mRenderer, width, height); 193 } 194 195 private native void nSetViewport(int renderer, int width, int height); 196 197 @Override 198 void onPreDraw() { 199 nPrepare(mRenderer, mOpaque); 200 } 201 202 private native void nPrepare(int renderer, boolean opaque); 203 204 @Override 205 void onPostDraw() { 206 nFinish(mRenderer); 207 } 208 209 private native void nFinish(int renderer); 210 211 @Override 212 public boolean acquireContext() { 213 if (!mContextLocked) { 214 nAcquireContext(mRenderer); 215 mContextLocked = true; 216 } 217 return mContextLocked; 218 } 219 220 private native void nAcquireContext(int renderer); 221 222 @Override 223 public void releaseContext() { 224 if (mContextLocked) { 225 nReleaseContext(mRenderer); 226 mContextLocked = false; 227 } 228 } 229 230 private native void nReleaseContext(int renderer); 231 232 /////////////////////////////////////////////////////////////////////////// 233 // Display list 234 /////////////////////////////////////////////////////////////////////////// 235 236 int getDisplayList() { 237 return nGetDisplayList(mRenderer); 238 } 239 240 private native int nGetDisplayList(int renderer); 241 242 static void destroyDisplayList(int displayList) { 243 nDestroyDisplayList(displayList); 244 } 245 246 private static native void nDestroyDisplayList(int displayList); 247 248 @Override 249 public void drawDisplayList(DisplayList displayList) { 250 nDrawDisplayList(mRenderer, ((GLES20DisplayList) displayList).mNativeDisplayList); 251 } 252 253 private native void nDrawDisplayList(int renderer, int displayList); 254 255 /////////////////////////////////////////////////////////////////////////// 256 // Hardware layer 257 /////////////////////////////////////////////////////////////////////////// 258 259 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 260 final GLES20Layer glLayer = (GLES20Layer) layer; 261 boolean hasColorFilter = paint != null && setupColorFilter(paint); 262 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 263 nDrawLayer(mRenderer, glLayer.getLayer(), x, y, nativePaint); 264 if (hasColorFilter) nResetModifiers(mRenderer); 265 } 266 267 private native void nDrawLayer(int renderer, int layer, float x, float y, int paint); 268 269 void interrupt() { 270 nInterrupt(mRenderer); 271 } 272 273 void resume() { 274 nResume(mRenderer); 275 } 276 277 private native void nInterrupt(int renderer); 278 private native void nResume(int renderer); 279 280 /////////////////////////////////////////////////////////////////////////// 281 // Clipping 282 /////////////////////////////////////////////////////////////////////////// 283 284 @Override 285 public boolean clipPath(Path path) { 286 throw new UnsupportedOperationException(); 287 } 288 289 @Override 290 public boolean clipPath(Path path, Region.Op op) { 291 throw new UnsupportedOperationException(); 292 } 293 294 @Override 295 public boolean clipRect(float left, float top, float right, float bottom) { 296 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 297 } 298 299 private native boolean nClipRect(int renderer, float left, float top, 300 float right, float bottom, int op); 301 302 @Override 303 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 304 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 305 } 306 307 @Override 308 public boolean clipRect(int left, int top, int right, int bottom) { 309 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 310 } 311 312 private native boolean nClipRect(int renderer, int left, int top, int right, int bottom, 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 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 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 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 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 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 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 native void nSetMatrix(int renderer, int matrix); 409 410 @Override 411 public int getNativeMatrix() { 412 return nGetMatrix(mRenderer); 413 } 414 415 private native int nGetMatrix(int renderer); 416 417 @Override 418 public void getMatrix(Matrix matrix) { 419 nGetMatrix(mRenderer, matrix.native_instance); 420 } 421 422 private 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 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 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 native int nSaveLayer(int renderer, float left, float top, float right, float bottom, 466 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 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 native void nRestore(int renderer); 492 493 @Override 494 public void restoreToCount(int saveCount) { 495 nRestoreToCount(mRenderer, saveCount); 496 } 497 498 private native void nRestoreToCount(int renderer, int saveCount); 499 500 @Override 501 public int getSaveCount() { 502 return nGetSaveCount(mRenderer); 503 } 504 505 private 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 // TODO: Implement 529 } 530 531 @Override 532 public void drawARGB(int a, int r, int g, int b) { 533 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 534 } 535 536 @Override 537 public void drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint) { 538 // Shaders are ignored when drawing patches 539 boolean hasColorFilter = paint != null && setupColorFilter(paint); 540 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 541 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, chunks, 542 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 543 if (hasColorFilter) nResetModifiers(mRenderer); 544 } 545 546 private native void nDrawPatch(int renderer, int bitmap, byte[] buffer, byte[] chunks, 547 float left, float top, float right, float bottom, int paint); 548 549 @Override 550 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 551 // Shaders are ignored when drawing bitmaps 552 boolean hasColorFilter = paint != null && setupColorFilter(paint); 553 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 554 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 555 if (hasColorFilter) nResetModifiers(mRenderer); 556 } 557 558 private native void nDrawBitmap( 559 int renderer, int bitmap, byte[] buffer, float left, float top, int paint); 560 561 @Override 562 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 563 // Shaders are ignored when drawing bitmaps 564 boolean hasColorFilter = paint != null && setupColorFilter(paint); 565 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 566 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 567 matrix.native_instance, nativePaint); 568 if (hasColorFilter) nResetModifiers(mRenderer); 569 } 570 571 private native void nDrawBitmap(int renderer, int bitmap, byte[] buff, int matrix, int paint); 572 573 @Override 574 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 575 // Shaders are ignored when drawing bitmaps 576 boolean hasColorFilter = paint != null && setupColorFilter(paint); 577 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 578 579 int left, top, right, bottom; 580 if (src == null) { 581 left = top = 0; 582 right = bitmap.getWidth(); 583 bottom = bitmap.getHeight(); 584 } else { 585 left = src.left; 586 right = src.right; 587 top = src.top; 588 bottom = src.bottom; 589 } 590 591 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 592 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 593 if (hasColorFilter) nResetModifiers(mRenderer); 594 } 595 596 @Override 597 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 598 // Shaders are ignored when drawing bitmaps 599 boolean hasColorFilter = paint != null && setupColorFilter(paint); 600 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 601 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, src.left, src.top, src.right, 602 src.bottom, dst.left, dst.top, dst.right, dst.bottom, nativePaint); 603 if (hasColorFilter) nResetModifiers(mRenderer); 604 } 605 606 private native void nDrawBitmap(int renderer, int bitmap, byte[] buffer, 607 float srcLeft, float srcTop, float srcRight, float srcBottom, 608 float left, float top, float right, float bottom, int paint); 609 610 @Override 611 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 612 int width, int height, boolean hasAlpha, Paint paint) { 613 // Shaders are ignored when drawing bitmaps 614 boolean hasColorFilter = paint != null && setupColorFilter(paint); 615 final Bitmap.Config config = hasAlpha ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565; 616 final Bitmap b = Bitmap.createBitmap(colors, offset, stride, width, height, config); 617 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 618 nDrawBitmap(mRenderer, b.mNativeBitmap, b.mBuffer, x, y, nativePaint); 619 b.recycle(); 620 if (hasColorFilter) nResetModifiers(mRenderer); 621 } 622 623 @Override 624 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 625 int width, int height, boolean hasAlpha, Paint paint) { 626 // Shaders are ignored when drawing bitmaps 627 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 628 } 629 630 @Override 631 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 632 int vertOffset, int[] colors, int colorOffset, Paint paint) { 633 if (meshWidth < 0 || meshHeight < 0 || vertOffset < 0 || colorOffset < 0) { 634 throw new ArrayIndexOutOfBoundsException(); 635 } 636 637 if (meshWidth == 0 || meshHeight == 0) { 638 return; 639 } 640 641 final int count = (meshWidth + 1) * (meshHeight + 1); 642 checkRange(verts.length, vertOffset, count * 2); 643 644 // TODO: Colors are ignored for now 645 colors = null; 646 colorOffset = 0; 647 648 boolean hasColorFilter = paint != null && setupColorFilter(paint); 649 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 650 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 651 verts, vertOffset, colors, colorOffset, nativePaint); 652 if (hasColorFilter) nResetModifiers(mRenderer); 653 } 654 655 private native void nDrawBitmapMesh(int renderer, int bitmap, byte[] buffer, 656 int meshWidth, int meshHeight, float[] verts, int vertOffset, 657 int[] colors, int colorOffset, int paint); 658 659 @Override 660 public void drawCircle(float cx, float cy, float radius, Paint paint) { 661 boolean hasModifier = setupModifiers(paint); 662 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 663 if (hasModifier) nResetModifiers(mRenderer); 664 } 665 666 private native void nDrawCircle(int renderer, float cx, float cy, float radius, int paint); 667 668 @Override 669 public void drawColor(int color) { 670 drawColor(color, PorterDuff.Mode.SRC_OVER); 671 } 672 673 @Override 674 public void drawColor(int color, PorterDuff.Mode mode) { 675 nDrawColor(mRenderer, color, mode.nativeInt); 676 } 677 678 private native void nDrawColor(int renderer, int color, int mode); 679 680 @Override 681 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 682 mLine[0] = startX; 683 mLine[1] = startY; 684 mLine[2] = stopX; 685 mLine[3] = stopY; 686 drawLines(mLine, 0, 4, paint); 687 } 688 689 @Override 690 public void drawLines(float[] pts, int offset, int count, Paint paint) { 691 if ((offset | count) < 0 || offset + count > pts.length) { 692 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 693 } 694 boolean hasModifier = setupModifiers(paint); 695 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 696 if (hasModifier) nResetModifiers(mRenderer); 697 } 698 699 private native void nDrawLines(int renderer, float[] points, int offset, int count, int paint); 700 701 @Override 702 public void drawLines(float[] pts, Paint paint) { 703 drawLines(pts, 0, pts.length, paint); 704 } 705 706 @Override 707 public void drawOval(RectF oval, Paint paint) { 708 boolean hasModifier = setupModifiers(paint); 709 nDrawOval(mRenderer, oval.left, oval.top, oval.right, oval.bottom, paint.mNativePaint); 710 if (hasModifier) nResetModifiers(mRenderer); 711 } 712 713 private native void nDrawOval(int renderer, float left, float top, float right, float bottom, 714 int paint); 715 716 @Override 717 public void drawPaint(Paint paint) { 718 final Rect r = mClipBounds; 719 nGetClipBounds(mRenderer, r); 720 drawRect(r.left, r.top, r.right, r.bottom, paint); 721 } 722 723 @Override 724 public void drawPath(Path path, Paint paint) { 725 boolean hasModifier = setupModifiers(paint); 726 if (path.isSimplePath) { 727 if (path.rects != null) { 728 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 729 } 730 } else { 731 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 732 } 733 if (hasModifier) nResetModifiers(mRenderer); 734 } 735 736 private native void nDrawPath(int renderer, int path, int paint); 737 private native void nDrawRects(int renderer, int region, int paint); 738 739 @Override 740 public void drawPicture(Picture picture) { 741 throw new UnsupportedOperationException(); 742 } 743 744 @Override 745 public void drawPicture(Picture picture, Rect dst) { 746 throw new UnsupportedOperationException(); 747 } 748 749 @Override 750 public void drawPicture(Picture picture, RectF dst) { 751 throw new UnsupportedOperationException(); 752 } 753 754 @Override 755 public void drawPoint(float x, float y, Paint paint) { 756 mPoint[0] = x; 757 mPoint[1] = y; 758 drawPoints(mPoint, 0, 1, paint); 759 } 760 761 @Override 762 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 763 // TODO: Implement 764 } 765 766 @Override 767 public void drawPoints(float[] pts, Paint paint) { 768 drawPoints(pts, 0, pts.length / 2, paint); 769 } 770 771 @Override 772 public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 773 // TODO: Implement 774 } 775 776 @Override 777 public void drawPosText(String text, float[] pos, Paint paint) { 778 // TODO: Implement 779 } 780 781 @Override 782 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 783 boolean hasModifier = setupModifiers(paint); 784 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 785 if (hasModifier) nResetModifiers(mRenderer); 786 } 787 788 private native void nDrawRect(int renderer, float left, float top, float right, float bottom, 789 int paint); 790 791 @Override 792 public void drawRect(Rect r, Paint paint) { 793 drawRect(r.left, r.top, r.right, r.bottom, paint); 794 } 795 796 @Override 797 public void drawRect(RectF r, Paint paint) { 798 drawRect(r.left, r.top, r.right, r.bottom, paint); 799 } 800 801 @Override 802 public void drawRGB(int r, int g, int b) { 803 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 804 } 805 806 @Override 807 public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 808 boolean hasModifier = setupModifiers(paint); 809 nDrawRoundRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 810 rx, ry, paint.mNativePaint); 811 if (hasModifier) nResetModifiers(mRenderer); 812 } 813 814 private native void nDrawRoundRect(int renderer, float left, float top, 815 float right, float bottom, float rx, float y, int paint); 816 817 @Override 818 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 819 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 820 throw new IndexOutOfBoundsException(); 821 } 822 823 boolean hasModifier = setupModifiers(paint); 824 try { 825 nDrawText(mRenderer, text, index, count, x, y, paint.mBidiFlags, paint.mNativePaint); 826 } finally { 827 if (hasModifier) nResetModifiers(mRenderer); 828 } 829 } 830 831 private native void nDrawText(int renderer, char[] text, int index, int count, float x, float y, 832 int bidiFlags, int paint); 833 834 @Override 835 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 836 boolean hasModifier = setupModifiers(paint); 837 try { 838 if (text instanceof String || text instanceof SpannedString || 839 text instanceof SpannableString) { 840 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 841 paint.mNativePaint); 842 } else if (text instanceof GraphicsOperations) { 843 ((GraphicsOperations) text).drawText(this, start, end, x, y, 844 paint); 845 } else { 846 char[] buf = TemporaryBuffer.obtain(end - start); 847 TextUtils.getChars(text, start, end, buf, 0); 848 nDrawText(mRenderer, buf, 0, end - start, x, y, paint.mBidiFlags, paint.mNativePaint); 849 TemporaryBuffer.recycle(buf); 850 } 851 } finally { 852 if (hasModifier) nResetModifiers(mRenderer); 853 } 854 } 855 856 @Override 857 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 858 if ((start | end | (end - start) | (text.length() - end)) < 0) { 859 throw new IndexOutOfBoundsException(); 860 } 861 862 boolean hasModifier = setupModifiers(paint); 863 try { 864 nDrawText(mRenderer, text, start, end, x, y, paint.mBidiFlags, paint.mNativePaint); 865 } finally { 866 if (hasModifier) nResetModifiers(mRenderer); 867 } 868 } 869 870 private native void nDrawText(int renderer, String text, int start, int end, float x, float y, 871 int bidiFlags, int paint); 872 873 @Override 874 public void drawText(String text, float x, float y, Paint paint) { 875 boolean hasModifier = setupModifiers(paint); 876 try { 877 nDrawText(mRenderer, text, 0, text.length(), x, y, paint.mBidiFlags, 878 paint.mNativePaint); 879 } finally { 880 if (hasModifier) nResetModifiers(mRenderer); 881 } 882 } 883 884 @Override 885 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 886 float vOffset, Paint paint) { 887 // TODO: Implement 888 } 889 890 @Override 891 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 892 // TODO: Implement 893 } 894 895 @Override 896 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 897 float x, float y, int dir, Paint paint) { 898 if ((index | count | text.length - index - count) < 0) { 899 throw new IndexOutOfBoundsException(); 900 } 901 if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 902 throw new IllegalArgumentException("Unknown direction: " + dir); 903 } 904 905 boolean hasModifier = setupModifiers(paint); 906 try { 907 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, dir, 908 paint.mNativePaint); 909 } finally { 910 if (hasModifier) nResetModifiers(mRenderer); 911 } 912 } 913 914 private native void nDrawTextRun(int renderer, char[] text, int index, int count, 915 int contextIndex, int contextCount, float x, float y, int dir, int nativePaint); 916 917 @Override 918 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 919 float x, float y, int dir, Paint paint) { 920 if ((start | end | end - start | text.length() - end) < 0) { 921 throw new IndexOutOfBoundsException(); 922 } 923 924 boolean hasModifier = setupModifiers(paint); 925 try { 926 int flags = dir == 0 ? 0 : 1; 927 if (text instanceof String || text instanceof SpannedString || 928 text instanceof SpannableString) { 929 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 930 contextEnd, x, y, flags, paint.mNativePaint); 931 } else if (text instanceof GraphicsOperations) { 932 ((GraphicsOperations) text).drawTextRun(this, start, end, 933 contextStart, contextEnd, x, y, flags, paint); 934 } else { 935 int contextLen = contextEnd - contextStart; 936 int len = end - start; 937 char[] buf = TemporaryBuffer.obtain(contextLen); 938 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 939 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 940 x, y, flags, paint.mNativePaint); 941 TemporaryBuffer.recycle(buf); 942 } 943 } finally { 944 if (hasModifier) nResetModifiers(mRenderer); 945 } 946 } 947 948 private native void nDrawTextRun(int renderer, String text, int start, int end, 949 int contextStart, int contextEnd, float x, float y, int flags, int nativePaint); 950 951 @Override 952 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 953 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 954 int indexOffset, int indexCount, Paint paint) { 955 // TODO: Implement 956 } 957 958 private boolean setupModifiers(Paint paint) { 959 boolean hasModifier = false; 960 961 if (paint.hasShadow) { 962 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 963 paint.shadowColor); 964 hasModifier = true; 965 } 966 967 final Shader shader = paint.getShader(); 968 if (shader != null) { 969 nSetupShader(mRenderer, shader.native_shader); 970 hasModifier = true; 971 } 972 973 final ColorFilter filter = paint.getColorFilter(); 974 if (filter != null) { 975 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 976 hasModifier = true; 977 } 978 979 return hasModifier; 980 } 981 982 private boolean setupColorFilter(Paint paint) { 983 final ColorFilter filter = paint.getColorFilter(); 984 if (filter != null) { 985 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 986 return true; 987 } 988 return false; 989 } 990 991 private native void nSetupShader(int renderer, int shader); 992 private native void nSetupColorFilter(int renderer, int colorFilter); 993 private native void nSetupShadow(int renderer, float radius, float dx, float dy, int color); 994 995 private native void nResetModifiers(int renderer); 996} 997