GLES20Canvas.java revision 9ace8f5e79e76893fe4ca9e4d10f6c4056330485
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.SurfaceTexture; 33import android.graphics.TemporaryBuffer; 34import android.text.GraphicsOperations; 35import android.text.SpannableString; 36import android.text.SpannedString; 37import android.text.TextUtils; 38 39/** 40 * An implementation of Canvas on top of OpenGL ES 2.0. 41 */ 42class GLES20Canvas extends HardwareCanvas { 43 // Must match modifiers used in the JNI layer 44 private static final int MODIFIER_NONE = 0; 45 private static final int MODIFIER_SHADOW = 1; 46 private static final int MODIFIER_SHADER = 2; 47 private static final int MODIFIER_COLOR_FILTER = 4; 48 49 private final boolean mOpaque; 50 private int mRenderer; 51 52 // The native renderer will be destroyed when this object dies. 53 // DO NOT overwrite this reference once it is set. 54 private CanvasFinalizer mFinalizer; 55 56 private int mWidth; 57 private int mHeight; 58 59 private final float[] mPoint = new float[2]; 60 private final float[] mLine = new float[4]; 61 62 private final Rect mClipBounds = new Rect(); 63 64 private DrawFilter mFilter; 65 66 /////////////////////////////////////////////////////////////////////////// 67 // JNI 68 /////////////////////////////////////////////////////////////////////////// 69 70 private static native boolean nIsAvailable(); 71 private static boolean sIsAvailable = nIsAvailable(); 72 73 static boolean isAvailable() { 74 return sIsAvailable; 75 } 76 77 /////////////////////////////////////////////////////////////////////////// 78 // Constructors 79 /////////////////////////////////////////////////////////////////////////// 80 81 /** 82 * Creates a canvas to render directly on screen. 83 */ 84 GLES20Canvas(boolean translucent) { 85 this(false, translucent); 86 } 87 88 /** 89 * Creates a canvas to render into an FBO. 90 */ 91 GLES20Canvas(int layer, boolean translucent) { 92 mOpaque = !translucent; 93 mRenderer = nCreateLayerRenderer(layer); 94 setupFinalizer(); 95 } 96 97 protected GLES20Canvas(boolean record, boolean translucent) { 98 mOpaque = !translucent; 99 100 setupRenderer(record); 101 } 102 103 protected void setupRenderer(boolean record) { 104 if (record) { 105 mRenderer = nGetDisplayListRenderer(mRenderer); 106 } else { 107 mRenderer = nCreateRenderer(); 108 } 109 110 setupFinalizer(); 111 } 112 113 private void setupFinalizer() { 114 if (mRenderer == 0) { 115 throw new IllegalStateException("Could not create GLES20Canvas renderer"); 116 } else { 117 mFinalizer = CanvasFinalizer.getFinalizer(mFinalizer, mRenderer); 118 } 119 } 120 121 private static native int nCreateRenderer(); 122 private static native int nCreateLayerRenderer(int layer); 123 private static native int nGetDisplayListRenderer(int renderer); 124 private static native void nDestroyRenderer(int renderer); 125 126 private static class CanvasFinalizer { 127 int mRenderer; 128 129 // Factory method returns new instance if old one is null, or old instance 130 // otherwise, destroying native renderer along the way as necessary 131 static CanvasFinalizer getFinalizer(CanvasFinalizer oldFinalizer, int renderer) { 132 if (oldFinalizer == null) { 133 return new CanvasFinalizer(renderer); 134 } 135 oldFinalizer.replaceNativeObject(renderer); 136 return oldFinalizer; 137 } 138 139 private CanvasFinalizer(int renderer) { 140 mRenderer = renderer; 141 } 142 143 private void replaceNativeObject(int newRenderer) { 144 if (mRenderer != 0 && newRenderer != mRenderer) { 145 nDestroyRenderer(mRenderer); 146 } 147 mRenderer = newRenderer; 148 } 149 150 @Override 151 protected void finalize() throws Throwable { 152 try { 153 replaceNativeObject(0); 154 } finally { 155 super.finalize(); 156 } 157 } 158 } 159 160 /////////////////////////////////////////////////////////////////////////// 161 // Hardware layers 162 /////////////////////////////////////////////////////////////////////////// 163 164 static native int nCreateTextureLayer(boolean opaque, int[] layerInfo); 165 static native int nCreateLayer(int width, int height, boolean isOpaque, int[] layerInfo); 166 static native void nResizeLayer(int layerId, int width, int height, int[] layerInfo); 167 static native void nUpdateTextureLayer(int layerId, int width, int height, boolean opaque, 168 SurfaceTexture surface); 169 static native void nDestroyLayer(int layerId); 170 static native void nDestroyLayerDeferred(int layerId); 171 static native boolean nCopyLayer(int layerId, int bitmap); 172 173 /////////////////////////////////////////////////////////////////////////// 174 // Canvas management 175 /////////////////////////////////////////////////////////////////////////// 176 177 @Override 178 public boolean isOpaque() { 179 return mOpaque; 180 } 181 182 @Override 183 public int getWidth() { 184 return mWidth; 185 } 186 187 @Override 188 public int getHeight() { 189 return mHeight; 190 } 191 192 @Override 193 public int getMaximumBitmapWidth() { 194 return nGetMaximumTextureWidth(); 195 } 196 197 @Override 198 public int getMaximumBitmapHeight() { 199 return nGetMaximumTextureHeight(); 200 } 201 202 private static native int nGetMaximumTextureWidth(); 203 private static native int nGetMaximumTextureHeight(); 204 205 /////////////////////////////////////////////////////////////////////////// 206 // Setup 207 /////////////////////////////////////////////////////////////////////////// 208 209 @Override 210 public void setViewport(int width, int height) { 211 mWidth = width; 212 mHeight = height; 213 214 nSetViewport(mRenderer, width, height); 215 } 216 217 private static native void nSetViewport(int renderer, int width, int height); 218 219 /** 220 * Preserves the back buffer of the current surface after a buffer swap. 221 * Calling this method sets the EGL_SWAP_BEHAVIOR attribute of the current 222 * surface to EGL_BUFFER_PRESERVED. Calling this method requires an EGL 223 * config that supports EGL_SWAP_BEHAVIOR_PRESERVED_BIT. 224 * 225 * @return True if the swap behavior was successfully changed, 226 * false otherwise. 227 * 228 * @hide 229 */ 230 public static boolean preserveBackBuffer() { 231 return nPreserveBackBuffer(); 232 } 233 234 private static native boolean nPreserveBackBuffer(); 235 236 /** 237 * Indicates whether the current surface preserves its back buffer 238 * after a buffer swap. 239 * 240 * @return True, if the surface's EGL_SWAP_BEHAVIOR is EGL_BUFFER_PRESERVED, 241 * false otherwise 242 * 243 * @hide 244 */ 245 public static boolean isBackBufferPreserved() { 246 return nIsBackBufferPreserved(); 247 } 248 249 private static native boolean nIsBackBufferPreserved(); 250 251 /** 252 * Disables v-sync. For performance testing only. 253 * 254 * @hide 255 */ 256 public static void disableVsync() { 257 nDisableVsync(); 258 } 259 260 private static native void nDisableVsync(); 261 262 @Override 263 void onPreDraw(Rect dirty) { 264 if (dirty != null) { 265 nPrepareDirty(mRenderer, dirty.left, dirty.top, dirty.right, dirty.bottom, mOpaque); 266 } else { 267 nPrepare(mRenderer, mOpaque); 268 } 269 } 270 271 private static native void nPrepare(int renderer, boolean opaque); 272 private static native void nPrepareDirty(int renderer, int left, int top, int right, int bottom, 273 boolean opaque); 274 275 @Override 276 void onPostDraw() { 277 nFinish(mRenderer); 278 } 279 280 private static native void nFinish(int renderer); 281 282 @Override 283 public boolean callDrawGLFunction(int drawGLFunction) { 284 return nCallDrawGLFunction(mRenderer, drawGLFunction); 285 } 286 287 private static native boolean nCallDrawGLFunction(int renderer, int drawGLFunction); 288 289 /////////////////////////////////////////////////////////////////////////// 290 // Display list 291 /////////////////////////////////////////////////////////////////////////// 292 293 int getDisplayList() { 294 return nGetDisplayList(mRenderer); 295 } 296 297 private static native int nGetDisplayList(int renderer); 298 299 static void destroyDisplayList(int displayList) { 300 nDestroyDisplayList(displayList); 301 } 302 303 private static native void nDestroyDisplayList(int displayList); 304 305 @Override 306 public boolean drawDisplayList(DisplayList displayList, int width, int height, Rect dirty) { 307 return nDrawDisplayList(mRenderer, 308 ((GLES20DisplayList) displayList).mNativeDisplayList, width, height, dirty); 309 } 310 311 private static native boolean nDrawDisplayList(int renderer, int displayList, 312 int width, int height, Rect dirty); 313 314 @Override 315 void outputDisplayList(DisplayList displayList) { 316 nOutputDisplayList(mRenderer, ((GLES20DisplayList) displayList).mNativeDisplayList); 317 } 318 319 private static native void nOutputDisplayList(int renderer, int displayList); 320 321 /////////////////////////////////////////////////////////////////////////// 322 // Hardware layer 323 /////////////////////////////////////////////////////////////////////////// 324 325 void drawHardwareLayer(HardwareLayer layer, float x, float y, Paint paint) { 326 final GLES20Layer glLayer = (GLES20Layer) layer; 327 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 328 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 329 nDrawLayer(mRenderer, glLayer.getLayer(), x, y, nativePaint); 330 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 331 } 332 333 private static native void nDrawLayer(int renderer, int layer, float x, float y, int paint); 334 335 void interrupt() { 336 nInterrupt(mRenderer); 337 } 338 339 void resume() { 340 nResume(mRenderer); 341 } 342 343 private static native void nInterrupt(int renderer); 344 private static native void nResume(int renderer); 345 346 /////////////////////////////////////////////////////////////////////////// 347 // Clipping 348 /////////////////////////////////////////////////////////////////////////// 349 350 @Override 351 public boolean clipPath(Path path) { 352 throw new UnsupportedOperationException(); 353 } 354 355 @Override 356 public boolean clipPath(Path path, Region.Op op) { 357 throw new UnsupportedOperationException(); 358 } 359 360 @Override 361 public boolean clipRect(float left, float top, float right, float bottom) { 362 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 363 } 364 365 private static native boolean nClipRect(int renderer, float left, float top, 366 float right, float bottom, int op); 367 368 @Override 369 public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 370 return nClipRect(mRenderer, left, top, right, bottom, op.nativeInt); 371 } 372 373 @Override 374 public boolean clipRect(int left, int top, int right, int bottom) { 375 return nClipRect(mRenderer, left, top, right, bottom, Region.Op.INTERSECT.nativeInt); 376 } 377 378 private static native boolean nClipRect(int renderer, int left, int top, int right, int bottom, 379 int op); 380 381 @Override 382 public boolean clipRect(Rect rect) { 383 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 384 Region.Op.INTERSECT.nativeInt); 385 } 386 387 @Override 388 public boolean clipRect(Rect rect, Region.Op op) { 389 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 390 } 391 392 @Override 393 public boolean clipRect(RectF rect) { 394 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 395 Region.Op.INTERSECT.nativeInt); 396 } 397 398 @Override 399 public boolean clipRect(RectF rect, Region.Op op) { 400 return nClipRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, op.nativeInt); 401 } 402 403 @Override 404 public boolean clipRegion(Region region) { 405 throw new UnsupportedOperationException(); 406 } 407 408 @Override 409 public boolean clipRegion(Region region, Region.Op op) { 410 throw new UnsupportedOperationException(); 411 } 412 413 @Override 414 public boolean getClipBounds(Rect bounds) { 415 return nGetClipBounds(mRenderer, bounds); 416 } 417 418 private static native boolean nGetClipBounds(int renderer, Rect bounds); 419 420 @Override 421 public boolean quickReject(float left, float top, float right, float bottom, EdgeType type) { 422 return nQuickReject(mRenderer, left, top, right, bottom, type.nativeInt); 423 } 424 425 private static native boolean nQuickReject(int renderer, float left, float top, 426 float right, float bottom, int edge); 427 428 @Override 429 public boolean quickReject(Path path, EdgeType type) { 430 throw new UnsupportedOperationException(); 431 } 432 433 @Override 434 public boolean quickReject(RectF rect, EdgeType type) { 435 return quickReject(rect.left, rect.top, rect.right, rect.bottom, type); 436 } 437 438 /////////////////////////////////////////////////////////////////////////// 439 // Transformations 440 /////////////////////////////////////////////////////////////////////////// 441 442 @Override 443 public void translate(float dx, float dy) { 444 if (dx != 0.0f || dy != 0.0f) nTranslate(mRenderer, dx, dy); 445 } 446 447 private static native void nTranslate(int renderer, float dx, float dy); 448 449 @Override 450 public void skew(float sx, float sy) { 451 nSkew(mRenderer, sx, sy); 452 } 453 454 private static native void nSkew(int renderer, float sx, float sy); 455 456 @Override 457 public void rotate(float degrees) { 458 nRotate(mRenderer, degrees); 459 } 460 461 private static native void nRotate(int renderer, float degrees); 462 463 @Override 464 public void scale(float sx, float sy) { 465 nScale(mRenderer, sx, sy); 466 } 467 468 private static native void nScale(int renderer, float sx, float sy); 469 470 @Override 471 public void setMatrix(Matrix matrix) { 472 nSetMatrix(mRenderer, matrix.native_instance); 473 } 474 475 private static native void nSetMatrix(int renderer, int matrix); 476 477 @Override 478 public int getNativeMatrix() { 479 return nGetMatrix(mRenderer); 480 } 481 482 private static native int nGetMatrix(int renderer); 483 484 @Override 485 public void getMatrix(Matrix matrix) { 486 nGetMatrix(mRenderer, matrix.native_instance); 487 } 488 489 private static native void nGetMatrix(int renderer, int matrix); 490 491 @Override 492 public void concat(Matrix matrix) { 493 nConcatMatrix(mRenderer, matrix.native_instance); 494 } 495 496 private static native void nConcatMatrix(int renderer, int matrix); 497 498 /////////////////////////////////////////////////////////////////////////// 499 // State management 500 /////////////////////////////////////////////////////////////////////////// 501 502 @Override 503 public int save() { 504 return nSave(mRenderer, Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG); 505 } 506 507 @Override 508 public int save(int saveFlags) { 509 return nSave(mRenderer, saveFlags); 510 } 511 512 private static native int nSave(int renderer, int flags); 513 514 @Override 515 public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 516 return saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, paint, saveFlags); 517 } 518 519 @Override 520 public int saveLayer(float left, float top, float right, float bottom, Paint paint, 521 int saveFlags) { 522 if (left < right && top < bottom) { 523 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 524 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 525 int count = nSaveLayer(mRenderer, left, top, right, bottom, nativePaint, saveFlags); 526 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 527 return count; 528 } 529 return save(saveFlags); 530 } 531 532 private static native int nSaveLayer(int renderer, float left, float top, 533 float right, float bottom, int paint, int saveFlags); 534 535 @Override 536 public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 537 return saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 538 alpha, saveFlags); 539 } 540 541 @Override 542 public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 543 int saveFlags) { 544 if (left < right && top < bottom) { 545 return nSaveLayerAlpha(mRenderer, left, top, right, bottom, alpha, saveFlags); 546 } 547 return save(saveFlags); 548 } 549 550 private static native int nSaveLayerAlpha(int renderer, float left, float top, float right, 551 float bottom, int alpha, int saveFlags); 552 553 @Override 554 public void restore() { 555 nRestore(mRenderer); 556 } 557 558 private static native void nRestore(int renderer); 559 560 @Override 561 public void restoreToCount(int saveCount) { 562 nRestoreToCount(mRenderer, saveCount); 563 } 564 565 private static native void nRestoreToCount(int renderer, int saveCount); 566 567 @Override 568 public int getSaveCount() { 569 return nGetSaveCount(mRenderer); 570 } 571 572 private static native int nGetSaveCount(int renderer); 573 574 /////////////////////////////////////////////////////////////////////////// 575 // Filtering 576 /////////////////////////////////////////////////////////////////////////// 577 578 @Override 579 public void setDrawFilter(DrawFilter filter) { 580 mFilter = filter; 581 } 582 583 @Override 584 public DrawFilter getDrawFilter() { 585 return mFilter; 586 } 587 588 /////////////////////////////////////////////////////////////////////////// 589 // Drawing 590 /////////////////////////////////////////////////////////////////////////// 591 592 @Override 593 public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 594 Paint paint) { 595 int modifiers = setupModifiers(paint); 596 nDrawArc(mRenderer, oval.left, oval.top, oval.right, oval.bottom, startAngle, sweepAngle, 597 useCenter, paint.mNativePaint); 598 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 599 } 600 601 private static native void nDrawArc(int renderer, float left, float top, 602 float right, float bottom, float startAngle, float sweepAngle, 603 boolean useCenter, int paint); 604 605 @Override 606 public void drawARGB(int a, int r, int g, int b) { 607 drawColor((a & 0xFF) << 24 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 608 } 609 610 @Override 611 public void drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint) { 612 // Shaders are ignored when drawing patches 613 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 614 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 615 nDrawPatch(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, chunks, 616 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 617 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 618 } 619 620 private static native void nDrawPatch(int renderer, int bitmap, byte[] buffer, byte[] chunks, 621 float left, float top, float right, float bottom, int paint); 622 623 @Override 624 public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 625 // Shaders are ignored when drawing bitmaps 626 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 627 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 628 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, nativePaint); 629 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 630 } 631 632 private static native void nDrawBitmap( 633 int renderer, int bitmap, byte[] buffer, float left, float top, int paint); 634 635 @Override 636 public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 637 // Shaders are ignored when drawing bitmaps 638 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 639 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 640 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, 641 matrix.native_instance, nativePaint); 642 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 643 } 644 645 private static native void nDrawBitmap(int renderer, int bitmap, byte[] buff, 646 int matrix, int paint); 647 648 @Override 649 public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 650 // Shaders are ignored when drawing bitmaps 651 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 652 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 653 654 int left, top, right, bottom; 655 if (src == null) { 656 left = top = 0; 657 right = bitmap.getWidth(); 658 bottom = bitmap.getHeight(); 659 } else { 660 left = src.left; 661 right = src.right; 662 top = src.top; 663 bottom = src.bottom; 664 } 665 666 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, left, top, right, bottom, 667 dst.left, dst.top, dst.right, dst.bottom, nativePaint); 668 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 669 } 670 671 @Override 672 public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 673 // Shaders are ignored when drawing bitmaps 674 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 675 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 676 nDrawBitmap(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, src.left, src.top, src.right, 677 src.bottom, dst.left, dst.top, dst.right, dst.bottom, nativePaint); 678 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 679 } 680 681 private static native void nDrawBitmap(int renderer, int bitmap, byte[] buffer, 682 float srcLeft, float srcTop, float srcRight, float srcBottom, 683 float left, float top, float right, float bottom, int paint); 684 685 @Override 686 public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 687 int width, int height, boolean hasAlpha, Paint paint) { 688 // Shaders are ignored when drawing bitmaps 689 int modifier = paint != null ? setupColorFilter(paint) : MODIFIER_NONE; 690 final Bitmap.Config config = hasAlpha ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565; 691 final Bitmap b = Bitmap.createBitmap(colors, offset, stride, width, height, config); 692 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 693 nDrawBitmap(mRenderer, b.mNativeBitmap, b.mBuffer, x, y, nativePaint); 694 b.recycle(); 695 if (modifier != MODIFIER_NONE) nResetModifiers(mRenderer, modifier); 696 } 697 698 @Override 699 public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 700 int width, int height, boolean hasAlpha, Paint paint) { 701 // Shaders are ignored when drawing bitmaps 702 drawBitmap(colors, offset, stride, (float) x, (float) y, width, height, hasAlpha, paint); 703 } 704 705 @Override 706 public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, 707 int vertOffset, int[] colors, int colorOffset, Paint paint) { 708 if (meshWidth < 0 || meshHeight < 0 || vertOffset < 0 || colorOffset < 0) { 709 throw new ArrayIndexOutOfBoundsException(); 710 } 711 712 if (meshWidth == 0 || meshHeight == 0) { 713 return; 714 } 715 716 final int count = (meshWidth + 1) * (meshHeight + 1); 717 checkRange(verts.length, vertOffset, count * 2); 718 719 // TODO: Colors are ignored for now 720 colors = null; 721 colorOffset = 0; 722 723 int modifiers = paint != null ? setupModifiers(bitmap, paint) : MODIFIER_NONE; 724 final int nativePaint = paint == null ? 0 : paint.mNativePaint; 725 nDrawBitmapMesh(mRenderer, bitmap.mNativeBitmap, bitmap.mBuffer, meshWidth, meshHeight, 726 verts, vertOffset, colors, colorOffset, nativePaint); 727 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 728 } 729 730 private static native void nDrawBitmapMesh(int renderer, int bitmap, byte[] buffer, 731 int meshWidth, int meshHeight, float[] verts, int vertOffset, 732 int[] colors, int colorOffset, int paint); 733 734 @Override 735 public void drawCircle(float cx, float cy, float radius, Paint paint) { 736 int modifiers = setupModifiers(paint); 737 nDrawCircle(mRenderer, cx, cy, radius, paint.mNativePaint); 738 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 739 } 740 741 private static native void nDrawCircle(int renderer, float cx, float cy, 742 float radius, int paint); 743 744 @Override 745 public void drawColor(int color) { 746 drawColor(color, PorterDuff.Mode.SRC_OVER); 747 } 748 749 @Override 750 public void drawColor(int color, PorterDuff.Mode mode) { 751 nDrawColor(mRenderer, color, mode.nativeInt); 752 } 753 754 private static native void nDrawColor(int renderer, int color, int mode); 755 756 @Override 757 public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 758 mLine[0] = startX; 759 mLine[1] = startY; 760 mLine[2] = stopX; 761 mLine[3] = stopY; 762 drawLines(mLine, 0, 4, paint); 763 } 764 765 @Override 766 public void drawLines(float[] pts, int offset, int count, Paint paint) { 767 if ((offset | count) < 0 || offset + count > pts.length) { 768 throw new IllegalArgumentException("The lines array must contain 4 elements per line."); 769 } 770 int modifiers = setupModifiers(paint); 771 nDrawLines(mRenderer, pts, offset, count, paint.mNativePaint); 772 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 773 } 774 775 private static native void nDrawLines(int renderer, float[] points, 776 int offset, int count, int paint); 777 778 @Override 779 public void drawLines(float[] pts, Paint paint) { 780 drawLines(pts, 0, pts.length, paint); 781 } 782 783 @Override 784 public void drawOval(RectF oval, Paint paint) { 785 int modifiers = setupModifiers(paint); 786 nDrawOval(mRenderer, oval.left, oval.top, oval.right, oval.bottom, paint.mNativePaint); 787 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 788 } 789 790 private static native void nDrawOval(int renderer, float left, float top, 791 float right, float bottom, int paint); 792 793 @Override 794 public void drawPaint(Paint paint) { 795 final Rect r = mClipBounds; 796 nGetClipBounds(mRenderer, r); 797 drawRect(r.left, r.top, r.right, r.bottom, paint); 798 } 799 800 @Override 801 public void drawPath(Path path, Paint paint) { 802 int modifiers = setupModifiers(paint); 803 if (path.isSimplePath) { 804 if (path.rects != null) { 805 nDrawRects(mRenderer, path.rects.mNativeRegion, paint.mNativePaint); 806 } 807 } else { 808 nDrawPath(mRenderer, path.mNativePath, paint.mNativePaint); 809 } 810 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 811 } 812 813 private static native void nDrawPath(int renderer, int path, int paint); 814 private static native void nDrawRects(int renderer, int region, int paint); 815 816 @Override 817 public void drawPicture(Picture picture) { 818 throw new UnsupportedOperationException(); 819 } 820 821 @Override 822 public void drawPicture(Picture picture, Rect dst) { 823 throw new UnsupportedOperationException(); 824 } 825 826 @Override 827 public void drawPicture(Picture picture, RectF dst) { 828 throw new UnsupportedOperationException(); 829 } 830 831 @Override 832 public void drawPoint(float x, float y, Paint paint) { 833 mPoint[0] = x; 834 mPoint[1] = y; 835 drawPoints(mPoint, 0, 2, paint); 836 } 837 838 @Override 839 public void drawPoints(float[] pts, Paint paint) { 840 drawPoints(pts, 0, pts.length, paint); 841 } 842 843 @Override 844 public void drawPoints(float[] pts, int offset, int count, Paint paint) { 845 int modifiers = setupModifiers(paint); 846 nDrawPoints(mRenderer, pts, offset, count, paint.mNativePaint); 847 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 848 } 849 850 private static native void nDrawPoints(int renderer, float[] points, 851 int offset, int count, int paint); 852 853 @Override 854 public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 855 // TODO: Implement 856 } 857 858 @Override 859 public void drawPosText(String text, float[] pos, Paint paint) { 860 // TODO: Implement 861 } 862 863 @Override 864 public void drawRect(float left, float top, float right, float bottom, Paint paint) { 865 int modifiers = setupModifiers(paint); 866 nDrawRect(mRenderer, left, top, right, bottom, paint.mNativePaint); 867 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 868 } 869 870 private static native void nDrawRect(int renderer, float left, float top, 871 float right, float bottom, int paint); 872 873 @Override 874 public void drawRect(Rect r, Paint paint) { 875 drawRect(r.left, r.top, r.right, r.bottom, paint); 876 } 877 878 @Override 879 public void drawRect(RectF r, Paint paint) { 880 drawRect(r.left, r.top, r.right, r.bottom, paint); 881 } 882 883 @Override 884 public void drawRGB(int r, int g, int b) { 885 drawColor(0xFF000000 | (r & 0xFF) << 16 | (g & 0xFF) << 8 | (b & 0xFF)); 886 } 887 888 @Override 889 public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 890 int modifiers = setupModifiers(paint); 891 nDrawRoundRect(mRenderer, rect.left, rect.top, rect.right, rect.bottom, 892 rx, ry, paint.mNativePaint); 893 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 894 } 895 896 private static native void nDrawRoundRect(int renderer, float left, float top, 897 float right, float bottom, float rx, float y, int paint); 898 899 @Override 900 public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 901 if ((index | count | (index + count) | (text.length - index - count)) < 0) { 902 throw new IndexOutOfBoundsException(); 903 } 904 905 int modifiers = setupModifiers(paint); 906 try { 907 nDrawText(mRenderer, text, index, count, x, y, paint.mBidiFlags, paint.mNativePaint); 908 } finally { 909 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 910 } 911 } 912 913 private static native void nDrawText(int renderer, char[] text, int index, int count, 914 float x, float y, int bidiFlags, int paint); 915 916 @Override 917 public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 918 int modifiers = setupModifiers(paint); 919 try { 920 if (text instanceof String || text instanceof SpannedString || 921 text instanceof SpannableString) { 922 nDrawText(mRenderer, text.toString(), start, end, x, y, paint.mBidiFlags, 923 paint.mNativePaint); 924 } else if (text instanceof GraphicsOperations) { 925 ((GraphicsOperations) text).drawText(this, start, end, x, y, 926 paint); 927 } else { 928 char[] buf = TemporaryBuffer.obtain(end - start); 929 TextUtils.getChars(text, start, end, buf, 0); 930 nDrawText(mRenderer, buf, 0, end - start, x, y, 931 paint.mBidiFlags, paint.mNativePaint); 932 TemporaryBuffer.recycle(buf); 933 } 934 } finally { 935 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 936 } 937 } 938 939 @Override 940 public void drawText(String text, int start, int end, float x, float y, Paint paint) { 941 if ((start | end | (end - start) | (text.length() - end)) < 0) { 942 throw new IndexOutOfBoundsException(); 943 } 944 945 int modifiers = setupModifiers(paint); 946 try { 947 nDrawText(mRenderer, text, start, end, x, y, paint.mBidiFlags, paint.mNativePaint); 948 } finally { 949 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 950 } 951 } 952 953 private static native void nDrawText(int renderer, String text, int start, int end, 954 float x, float y, int bidiFlags, int paint); 955 956 @Override 957 public void drawText(String text, float x, float y, Paint paint) { 958 int modifiers = setupModifiers(paint); 959 try { 960 nDrawText(mRenderer, text, 0, text.length(), x, y, paint.mBidiFlags, 961 paint.mNativePaint); 962 } finally { 963 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 964 } 965 } 966 967 @Override 968 public void drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, 969 float vOffset, Paint paint) { 970 // TODO: Implement 971 } 972 973 @Override 974 public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 975 // TODO: Implement 976 } 977 978 @Override 979 public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 980 float x, float y, int dir, Paint paint) { 981 if ((index | count | text.length - index - count) < 0) { 982 throw new IndexOutOfBoundsException(); 983 } 984 if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 985 throw new IllegalArgumentException("Unknown direction: " + dir); 986 } 987 988 int modifiers = setupModifiers(paint); 989 try { 990 nDrawTextRun(mRenderer, text, index, count, contextIndex, contextCount, x, y, dir, 991 paint.mNativePaint); 992 } finally { 993 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 994 } 995 } 996 997 private static native void nDrawTextRun(int renderer, char[] text, int index, int count, 998 int contextIndex, int contextCount, float x, float y, int dir, int nativePaint); 999 1000 @Override 1001 public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 1002 float x, float y, int dir, Paint paint) { 1003 if ((start | end | end - start | text.length() - end) < 0) { 1004 throw new IndexOutOfBoundsException(); 1005 } 1006 1007 int modifiers = setupModifiers(paint); 1008 try { 1009 int flags = dir == 0 ? 0 : 1; 1010 if (text instanceof String || text instanceof SpannedString || 1011 text instanceof SpannableString) { 1012 nDrawTextRun(mRenderer, text.toString(), start, end, contextStart, 1013 contextEnd, x, y, flags, paint.mNativePaint); 1014 } else if (text instanceof GraphicsOperations) { 1015 ((GraphicsOperations) text).drawTextRun(this, start, end, 1016 contextStart, contextEnd, x, y, flags, paint); 1017 } else { 1018 int contextLen = contextEnd - contextStart; 1019 int len = end - start; 1020 char[] buf = TemporaryBuffer.obtain(contextLen); 1021 TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 1022 nDrawTextRun(mRenderer, buf, start - contextStart, len, 0, contextLen, 1023 x, y, flags, paint.mNativePaint); 1024 TemporaryBuffer.recycle(buf); 1025 } 1026 } finally { 1027 if (modifiers != MODIFIER_NONE) nResetModifiers(mRenderer, modifiers); 1028 } 1029 } 1030 1031 private static native void nDrawTextRun(int renderer, String text, int start, int end, 1032 int contextStart, int contextEnd, float x, float y, int flags, int nativePaint); 1033 1034 @Override 1035 public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 1036 float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, 1037 int indexOffset, int indexCount, Paint paint) { 1038 // TODO: Implement 1039 } 1040 1041 private int setupModifiers(Bitmap b, Paint paint) { 1042 if (b.getConfig() == Bitmap.Config.ALPHA_8) { 1043 return setupModifiers(paint); 1044 } 1045 1046 final ColorFilter filter = paint.getColorFilter(); 1047 if (filter != null) { 1048 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1049 return MODIFIER_COLOR_FILTER; 1050 } 1051 1052 return MODIFIER_NONE; 1053 } 1054 1055 private int setupModifiers(Paint paint) { 1056 int modifiers = MODIFIER_NONE; 1057 1058 if (paint.hasShadow) { 1059 nSetupShadow(mRenderer, paint.shadowRadius, paint.shadowDx, paint.shadowDy, 1060 paint.shadowColor); 1061 modifiers |= MODIFIER_SHADOW; 1062 } 1063 1064 final Shader shader = paint.getShader(); 1065 if (shader != null) { 1066 nSetupShader(mRenderer, shader.native_shader); 1067 modifiers |= MODIFIER_SHADER; 1068 } 1069 1070 final ColorFilter filter = paint.getColorFilter(); 1071 if (filter != null) { 1072 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1073 modifiers |= MODIFIER_COLOR_FILTER; 1074 } 1075 1076 return modifiers; 1077 } 1078 1079 private int setupColorFilter(Paint paint) { 1080 final ColorFilter filter = paint.getColorFilter(); 1081 if (filter != null) { 1082 nSetupColorFilter(mRenderer, filter.nativeColorFilter); 1083 return MODIFIER_COLOR_FILTER; 1084 } 1085 return MODIFIER_NONE; 1086 } 1087 1088 private static native void nSetupShader(int renderer, int shader); 1089 private static native void nSetupColorFilter(int renderer, int colorFilter); 1090 private static native void nSetupShadow(int renderer, float radius, 1091 float dx, float dy, int color); 1092 1093 private static native void nResetModifiers(int renderer, int modifiers); 1094} 1095