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 17#include "DisplayListCanvas.h" 18 19#include "DeferredDisplayList.h" 20#include "DeferredLayerUpdater.h" 21#include "DisplayListOp.h" 22#include "ResourceCache.h" 23#include "RenderNode.h" 24#include "VectorDrawable.h" 25#include "utils/PaintUtils.h" 26 27#include <SkCamera.h> 28#include <SkCanvas.h> 29 30#include <private/hwui/DrawGlInfo.h> 31 32namespace android { 33namespace uirenderer { 34 35DisplayListCanvas::DisplayListCanvas(int width, int height) 36 : mState(*this) 37 , mResourceCache(ResourceCache::getInstance()) 38 , mDisplayList(nullptr) 39 , mTranslateX(0.0f) 40 , mTranslateY(0.0f) 41 , mHasDeferredTranslate(false) 42 , mDeferredBarrierType(kBarrier_None) 43 , mHighContrastText(false) 44 , mRestoreSaveCount(-1) { 45 resetRecording(width, height); 46} 47 48DisplayListCanvas::~DisplayListCanvas() { 49 LOG_ALWAYS_FATAL_IF(mDisplayList, 50 "Destroyed a DisplayListCanvas during a record!"); 51} 52 53void DisplayListCanvas::resetRecording(int width, int height) { 54 LOG_ALWAYS_FATAL_IF(mDisplayList, 55 "prepareDirty called a second time during a recording!"); 56 mDisplayList = new DisplayList(); 57 58 mState.initializeSaveStack(width, height, 59 0, 0, width, height, Vector3()); 60 61 mDeferredBarrierType = kBarrier_InOrder; 62 mState.setDirtyClip(false); 63 mRestoreSaveCount = -1; 64} 65 66 67/////////////////////////////////////////////////////////////////////////////// 68// Operations 69/////////////////////////////////////////////////////////////////////////////// 70 71DisplayList* DisplayListCanvas::finishRecording() { 72 flushRestoreToCount(); 73 flushTranslate(); 74 75 mPaintMap.clear(); 76 mRegionMap.clear(); 77 mPathMap.clear(); 78 DisplayList* displayList = mDisplayList; 79 mDisplayList = nullptr; 80 mSkiaCanvasProxy.reset(nullptr); 81 return displayList; 82} 83 84void DisplayListCanvas::callDrawGLFunction(Functor* functor, 85 GlFunctorLifecycleListener* listener) { 86 addDrawOp(new (alloc()) DrawFunctorOp(functor)); 87 mDisplayList->functors.push_back({functor, listener}); 88 mDisplayList->ref(listener); 89} 90 91SkCanvas* DisplayListCanvas::asSkCanvas() { 92 LOG_ALWAYS_FATAL_IF(!mDisplayList, 93 "attempting to get an SkCanvas when we are not recording!"); 94 if (!mSkiaCanvasProxy) { 95 mSkiaCanvasProxy.reset(new SkiaCanvasProxy(this)); 96 } 97 98 // SkCanvas instances default to identity transform, but should inherit 99 // the state of this Canvas; if this code was in the SkiaCanvasProxy 100 // constructor, we couldn't cache mSkiaCanvasProxy. 101 SkMatrix parentTransform; 102 getMatrix(&parentTransform); 103 mSkiaCanvasProxy.get()->setMatrix(parentTransform); 104 105 return mSkiaCanvasProxy.get(); 106} 107 108int DisplayListCanvas::save(SaveFlags::Flags flags) { 109 addStateOp(new (alloc()) SaveOp((int) flags)); 110 return mState.save((int) flags); 111} 112 113void DisplayListCanvas::restore() { 114 if (mRestoreSaveCount < 0) { 115 restoreToCount(getSaveCount() - 1); 116 return; 117 } 118 119 mRestoreSaveCount--; 120 flushTranslate(); 121 mState.restore(); 122} 123 124void DisplayListCanvas::restoreToCount(int saveCount) { 125 mRestoreSaveCount = saveCount; 126 flushTranslate(); 127 mState.restoreToCount(saveCount); 128} 129 130int DisplayListCanvas::saveLayer(float left, float top, float right, float bottom, 131 const SkPaint* paint, SaveFlags::Flags flags) { 132 // force matrix/clip isolation for layer 133 flags |= SaveFlags::MatrixClip; 134 135 paint = refPaint(paint); 136 addStateOp(new (alloc()) SaveLayerOp(left, top, right, bottom, paint, (int) flags)); 137 return mState.save((int) flags); 138} 139 140void DisplayListCanvas::translate(float dx, float dy) { 141 if (dx == 0.0f && dy == 0.0f) return; 142 143 mHasDeferredTranslate = true; 144 mTranslateX += dx; 145 mTranslateY += dy; 146 flushRestoreToCount(); 147 mState.translate(dx, dy, 0.0f); 148} 149 150void DisplayListCanvas::rotate(float degrees) { 151 if (degrees == 0.0f) return; 152 153 addStateOp(new (alloc()) RotateOp(degrees)); 154 mState.rotate(degrees); 155} 156 157void DisplayListCanvas::scale(float sx, float sy) { 158 if (sx == 1.0f && sy == 1.0f) return; 159 160 addStateOp(new (alloc()) ScaleOp(sx, sy)); 161 mState.scale(sx, sy); 162} 163 164void DisplayListCanvas::skew(float sx, float sy) { 165 addStateOp(new (alloc()) SkewOp(sx, sy)); 166 mState.skew(sx, sy); 167} 168 169void DisplayListCanvas::setMatrix(const SkMatrix& matrix) { 170 addStateOp(new (alloc()) SetMatrixOp(matrix)); 171 mState.setMatrix(matrix); 172} 173 174void DisplayListCanvas::concat(const SkMatrix& matrix) { 175 addStateOp(new (alloc()) ConcatMatrixOp(matrix)); 176 mState.concatMatrix(matrix); 177} 178 179bool DisplayListCanvas::getClipBounds(SkRect* outRect) const { 180 Rect bounds = mState.getLocalClipBounds(); 181 *outRect = SkRect::MakeLTRB(bounds.left, bounds.top, bounds.right, bounds.bottom); 182 return !(outRect->isEmpty()); 183} 184 185bool DisplayListCanvas::quickRejectRect(float left, float top, float right, float bottom) const { 186 return mState.quickRejectConservative(left, top, right, bottom); 187} 188 189bool DisplayListCanvas::quickRejectPath(const SkPath& path) const { 190 SkRect bounds = path.getBounds(); 191 return mState.quickRejectConservative(bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom); 192} 193 194 195bool DisplayListCanvas::clipRect(float left, float top, float right, float bottom, 196 SkRegion::Op op) { 197 addStateOp(new (alloc()) ClipRectOp(left, top, right, bottom, op)); 198 return mState.clipRect(left, top, right, bottom, op); 199} 200 201bool DisplayListCanvas::clipPath(const SkPath* path, SkRegion::Op op) { 202 path = refPath(path); 203 addStateOp(new (alloc()) ClipPathOp(path, op)); 204 return mState.clipPath(path, op); 205} 206 207bool DisplayListCanvas::clipRegion(const SkRegion* region, SkRegion::Op op) { 208 region = refRegion(region); 209 addStateOp(new (alloc()) ClipRegionOp(region, op)); 210 return mState.clipRegion(region, op); 211} 212 213void DisplayListCanvas::drawRenderNode(RenderNode* renderNode) { 214 LOG_ALWAYS_FATAL_IF(!renderNode, "missing rendernode"); 215 DrawRenderNodeOp* op = new (alloc()) DrawRenderNodeOp( 216 renderNode, 217 *mState.currentTransform(), 218 mState.clipIsSimple()); 219 addRenderNodeOp(op); 220} 221 222void DisplayListCanvas::drawLayer(DeferredLayerUpdater* layerHandle) { 223 // We ref the DeferredLayerUpdater due to its thread-safe ref-counting 224 // semantics. 225 mDisplayList->ref(layerHandle); 226 addDrawOp(new (alloc()) DrawLayerOp(layerHandle->backingLayer())); 227} 228 229void DisplayListCanvas::drawBitmap(const SkBitmap* bitmap, const SkPaint* paint) { 230 bitmap = refBitmap(*bitmap); 231 paint = refPaint(paint); 232 233 addDrawOp(new (alloc()) DrawBitmapOp(bitmap, paint)); 234} 235 236void DisplayListCanvas::drawBitmap(const SkBitmap& bitmap, float left, float top, 237 const SkPaint* paint) { 238 save(SaveFlags::Matrix); 239 translate(left, top); 240 drawBitmap(&bitmap, paint); 241 restore(); 242} 243 244void DisplayListCanvas::drawBitmap(const SkBitmap& bitmap, const SkMatrix& matrix, 245 const SkPaint* paint) { 246 if (matrix.isIdentity()) { 247 drawBitmap(&bitmap, paint); 248 } else if (!(matrix.getType() & ~(SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask)) 249 && MathUtils::isPositive(matrix.getScaleX()) 250 && MathUtils::isPositive(matrix.getScaleY())) { 251 // SkMatrix::isScaleTranslate() not available in L 252 SkRect src; 253 SkRect dst; 254 bitmap.getBounds(&src); 255 matrix.mapRect(&dst, src); 256 drawBitmap(bitmap, src.fLeft, src.fTop, src.fRight, src.fBottom, 257 dst.fLeft, dst.fTop, dst.fRight, dst.fBottom, paint); 258 } else { 259 save(SaveFlags::Matrix); 260 concat(matrix); 261 drawBitmap(&bitmap, paint); 262 restore(); 263 } 264} 265 266void DisplayListCanvas::drawBitmap(const SkBitmap& bitmap, float srcLeft, float srcTop, 267 float srcRight, float srcBottom, float dstLeft, float dstTop, 268 float dstRight, float dstBottom, const SkPaint* paint) { 269 if (srcLeft == 0 && srcTop == 0 270 && srcRight == bitmap.width() 271 && srcBottom == bitmap.height() 272 && (srcBottom - srcTop == dstBottom - dstTop) 273 && (srcRight - srcLeft == dstRight - dstLeft)) { 274 // transform simple rect to rect drawing case into position bitmap ops, since they merge 275 save(SaveFlags::Matrix); 276 translate(dstLeft, dstTop); 277 drawBitmap(&bitmap, paint); 278 restore(); 279 } else { 280 paint = refPaint(paint); 281 282 if (paint && paint->getShader()) { 283 float scaleX = (dstRight - dstLeft) / (srcRight - srcLeft); 284 float scaleY = (dstBottom - dstTop) / (srcBottom - srcTop); 285 if (!MathUtils::areEqual(scaleX, 1.0f) || !MathUtils::areEqual(scaleY, 1.0f)) { 286 // Apply the scale transform on the canvas, so that the shader 287 // effectively calculates positions relative to src rect space 288 289 save(SaveFlags::Matrix); 290 translate(dstLeft, dstTop); 291 scale(scaleX, scaleY); 292 293 dstLeft = 0.0f; 294 dstTop = 0.0f; 295 dstRight = srcRight - srcLeft; 296 dstBottom = srcBottom - srcTop; 297 298 addDrawOp(new (alloc()) DrawBitmapRectOp(refBitmap(bitmap), 299 srcLeft, srcTop, srcRight, srcBottom, 300 dstLeft, dstTop, dstRight, dstBottom, paint)); 301 restore(); 302 return; 303 } 304 } 305 306 addDrawOp(new (alloc()) DrawBitmapRectOp(refBitmap(bitmap), 307 srcLeft, srcTop, srcRight, srcBottom, 308 dstLeft, dstTop, dstRight, dstBottom, paint)); 309 } 310} 311 312void DisplayListCanvas::drawBitmapMesh(const SkBitmap& bitmap, int meshWidth, int meshHeight, 313 const float* vertices, const int* colors, const SkPaint* paint) { 314 int vertexCount = (meshWidth + 1) * (meshHeight + 1); 315 vertices = refBuffer<float>(vertices, vertexCount * 2); // 2 floats per vertex 316 paint = refPaint(paint); 317 colors = refBuffer<int>(colors, vertexCount); // 1 color per vertex 318 319 addDrawOp(new (alloc()) DrawBitmapMeshOp(refBitmap(bitmap), meshWidth, meshHeight, 320 vertices, colors, paint)); 321} 322 323void DisplayListCanvas::drawNinePatch(const SkBitmap& bitmap, const Res_png_9patch& patch, 324 float dstLeft, float dstTop, float dstRight, float dstBottom, const SkPaint* paint) { 325 const SkBitmap* bitmapPtr = refBitmap(bitmap); 326 const Res_png_9patch* patchPtr = refPatch(&patch); 327 paint = refPaint(paint); 328 329 addDrawOp(new (alloc()) DrawPatchOp(bitmapPtr, patchPtr, 330 dstLeft, dstTop, dstRight, dstBottom, paint)); 331} 332 333void DisplayListCanvas::drawColor(int color, SkXfermode::Mode mode) { 334 addDrawOp(new (alloc()) DrawColorOp(color, mode)); 335} 336 337void DisplayListCanvas::drawPaint(const SkPaint& paint) { 338 SkRect bounds; 339 if (getClipBounds(&bounds)) { 340 drawRect(bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom, paint); 341 } 342} 343 344 345void DisplayListCanvas::drawRect(float left, float top, float right, float bottom, 346 const SkPaint& paint) { 347 addDrawOp(new (alloc()) DrawRectOp(left, top, right, bottom, refPaint(&paint))); 348} 349 350void DisplayListCanvas::drawRoundRect(float left, float top, float right, float bottom, 351 float rx, float ry, const SkPaint& paint) { 352 addDrawOp(new (alloc()) DrawRoundRectOp(left, top, right, bottom, rx, ry, refPaint(&paint))); 353} 354 355void DisplayListCanvas::drawRoundRect( 356 CanvasPropertyPrimitive* left, CanvasPropertyPrimitive* top, 357 CanvasPropertyPrimitive* right, CanvasPropertyPrimitive* bottom, 358 CanvasPropertyPrimitive* rx, CanvasPropertyPrimitive* ry, 359 CanvasPropertyPaint* paint) { 360 mDisplayList->ref(left); 361 mDisplayList->ref(top); 362 mDisplayList->ref(right); 363 mDisplayList->ref(bottom); 364 mDisplayList->ref(rx); 365 mDisplayList->ref(ry); 366 mDisplayList->ref(paint); 367 refBitmapsInShader(paint->value.getShader()); 368 addDrawOp(new (alloc()) DrawRoundRectPropsOp(&left->value, &top->value, 369 &right->value, &bottom->value, &rx->value, &ry->value, &paint->value)); 370} 371 372void DisplayListCanvas::drawCircle(float x, float y, float radius, const SkPaint& paint) { 373 addDrawOp(new (alloc()) DrawCircleOp(x, y, radius, refPaint(&paint))); 374} 375 376void DisplayListCanvas::drawCircle(CanvasPropertyPrimitive* x, CanvasPropertyPrimitive* y, 377 CanvasPropertyPrimitive* radius, CanvasPropertyPaint* paint) { 378 mDisplayList->ref(x); 379 mDisplayList->ref(y); 380 mDisplayList->ref(radius); 381 mDisplayList->ref(paint); 382 refBitmapsInShader(paint->value.getShader()); 383 addDrawOp(new (alloc()) DrawCirclePropsOp(&x->value, &y->value, 384 &radius->value, &paint->value)); 385} 386 387void DisplayListCanvas::drawOval(float left, float top, float right, float bottom, 388 const SkPaint& paint) { 389 addDrawOp(new (alloc()) DrawOvalOp(left, top, right, bottom, refPaint(&paint))); 390} 391 392void DisplayListCanvas::drawArc(float left, float top, float right, float bottom, 393 float startAngle, float sweepAngle, bool useCenter, const SkPaint& paint) { 394 if (fabs(sweepAngle) >= 360.0f) { 395 drawOval(left, top, right, bottom, paint); 396 } else { 397 addDrawOp(new (alloc()) DrawArcOp(left, top, right, bottom, 398 startAngle, sweepAngle, useCenter, refPaint(&paint))); 399 } 400} 401 402void DisplayListCanvas::drawPath(const SkPath& path, const SkPaint& paint) { 403 addDrawOp(new (alloc()) DrawPathOp(refPath(&path), refPaint(&paint))); 404} 405 406void DisplayListCanvas::drawLines(const float* points, int count, const SkPaint& paint) { 407 points = refBuffer<float>(points, count); 408 409 addDrawOp(new (alloc()) DrawLinesOp(points, count, refPaint(&paint))); 410} 411 412void DisplayListCanvas::drawPoints(const float* points, int count, const SkPaint& paint) { 413 points = refBuffer<float>(points, count); 414 415 addDrawOp(new (alloc()) DrawPointsOp(points, count, refPaint(&paint))); 416} 417 418void DisplayListCanvas::drawVectorDrawable(VectorDrawableRoot* tree) { 419 mDisplayList->ref(tree); 420 mDisplayList->vectorDrawables.push_back(tree); 421 addDrawOp(new (alloc()) DrawVectorDrawableOp(tree, tree->stagingProperties()->getBounds())); 422} 423 424void DisplayListCanvas::drawGlyphsOnPath(const uint16_t* glyphs, int count, 425 const SkPath& path, float hOffset, float vOffset, const SkPaint& paint) { 426 if (!glyphs || count <= 0) return; 427 428 int bytesCount = 2 * count; 429 DrawOp* op = new (alloc()) DrawTextOnPathOp(refBuffer<glyph_t>(glyphs, count), 430 bytesCount, count, refPath(&path), 431 hOffset, vOffset, refPaint(&paint)); 432 addDrawOp(op); 433} 434 435void DisplayListCanvas::drawGlyphs(const uint16_t* glyphs, const float* positions, 436 int count, const SkPaint& paint, float x, float y, 437 float boundsLeft, float boundsTop, float boundsRight, float boundsBottom, 438 float totalAdvance) { 439 440 if (!glyphs || count <= 0 || PaintUtils::paintWillNotDrawText(paint)) return; 441 442 int bytesCount = count * 2; 443 positions = refBuffer<float>(positions, count * 2); 444 Rect bounds(boundsLeft, boundsTop, boundsRight, boundsBottom); 445 446 DrawOp* op = new (alloc()) DrawTextOp(refBuffer<glyph_t>(glyphs, count), bytesCount, count, 447 x, y, positions, refPaint(&paint), totalAdvance, bounds); 448 addDrawOp(op); 449 drawTextDecorations(x, y, totalAdvance, paint); 450} 451 452void DisplayListCanvas::drawRegion(const SkRegion& region, const SkPaint& paint) { 453 if (paint.getStyle() != SkPaint::kFill_Style || 454 (paint.isAntiAlias() && !mState.currentTransform()->isSimple())) { 455 SkRegion::Iterator it(region); 456 while (!it.done()) { 457 const SkIRect& r = it.rect(); 458 drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); 459 it.next(); 460 } 461 } else { 462 int count = 0; 463 Vector<float> rects; 464 SkRegion::Iterator it(region); 465 while (!it.done()) { 466 const SkIRect& r = it.rect(); 467 rects.push(r.fLeft); 468 rects.push(r.fTop); 469 rects.push(r.fRight); 470 rects.push(r.fBottom); 471 count += 4; 472 it.next(); 473 } 474 drawRects(rects.array(), count, &paint); 475 } 476} 477 478void DisplayListCanvas::drawRects(const float* rects, int count, const SkPaint* paint) { 479 if (count <= 0) return; 480 481 rects = refBuffer<float>(rects, count); 482 paint = refPaint(paint); 483 addDrawOp(new (alloc()) DrawRectsOp(rects, count, paint)); 484} 485 486void DisplayListCanvas::setDrawFilter(SkDrawFilter* filter) { 487 mDrawFilter.reset(SkSafeRef(filter)); 488} 489 490void DisplayListCanvas::insertReorderBarrier(bool enableReorder) { 491 flushRestoreToCount(); 492 flushTranslate(); 493 mDeferredBarrierType = enableReorder ? kBarrier_OutOfOrder : kBarrier_InOrder; 494} 495 496void DisplayListCanvas::flushRestoreToCount() { 497 if (mRestoreSaveCount >= 0) { 498 addOpAndUpdateChunk(new (alloc()) RestoreToCountOp(mRestoreSaveCount)); 499 mRestoreSaveCount = -1; 500 } 501} 502 503void DisplayListCanvas::flushTranslate() { 504 if (mHasDeferredTranslate) { 505 if (mTranslateX != 0.0f || mTranslateY != 0.0f) { 506 addOpAndUpdateChunk(new (alloc()) TranslateOp(mTranslateX, mTranslateY)); 507 mTranslateX = mTranslateY = 0.0f; 508 } 509 mHasDeferredTranslate = false; 510 } 511} 512 513size_t DisplayListCanvas::addOpAndUpdateChunk(DisplayListOp* op) { 514 int insertIndex = mDisplayList->ops.size(); 515#if HWUI_NEW_OPS 516 LOG_ALWAYS_FATAL("unsupported"); 517#else 518 mDisplayList->ops.push_back(op); 519#endif 520 if (mDeferredBarrierType != kBarrier_None) { 521 // op is first in new chunk 522 mDisplayList->chunks.emplace_back(); 523 DisplayList::Chunk& newChunk = mDisplayList->chunks.back(); 524 newChunk.beginOpIndex = insertIndex; 525 newChunk.endOpIndex = insertIndex + 1; 526 newChunk.reorderChildren = (mDeferredBarrierType == kBarrier_OutOfOrder); 527 528 int nextChildIndex = mDisplayList->children.size(); 529 newChunk.beginChildIndex = newChunk.endChildIndex = nextChildIndex; 530 mDeferredBarrierType = kBarrier_None; 531 } else { 532 // standard case - append to existing chunk 533 mDisplayList->chunks.back().endOpIndex = insertIndex + 1; 534 } 535 return insertIndex; 536} 537 538size_t DisplayListCanvas::flushAndAddOp(DisplayListOp* op) { 539 flushRestoreToCount(); 540 flushTranslate(); 541 return addOpAndUpdateChunk(op); 542} 543 544size_t DisplayListCanvas::addStateOp(StateOp* op) { 545 return flushAndAddOp(op); 546} 547 548size_t DisplayListCanvas::addDrawOp(DrawOp* op) { 549 Rect localBounds; 550 if (op->getLocalBounds(localBounds)) { 551 bool rejected = quickRejectRect(localBounds.left, localBounds.top, 552 localBounds.right, localBounds.bottom); 553 op->setQuickRejected(rejected); 554 } 555 556 mDisplayList->hasDrawOps = true; 557 return flushAndAddOp(op); 558} 559 560size_t DisplayListCanvas::addRenderNodeOp(DrawRenderNodeOp* op) { 561 int opIndex = addDrawOp(op); 562#if !HWUI_NEW_OPS 563 int childIndex = mDisplayList->addChild(op); 564 565 // update the chunk's child indices 566 DisplayList::Chunk& chunk = mDisplayList->chunks.back(); 567 chunk.endChildIndex = childIndex + 1; 568 569 if (op->renderNode->stagingProperties().isProjectionReceiver()) { 570 // use staging property, since recording on UI thread 571 mDisplayList->projectionReceiveIndex = opIndex; 572 } 573#endif 574 return opIndex; 575} 576 577void DisplayListCanvas::refBitmapsInShader(const SkShader* shader) { 578 if (!shader) return; 579 580 // If this paint has an SkShader that has an SkBitmap add 581 // it to the bitmap pile 582 SkBitmap bitmap; 583 SkShader::TileMode xy[2]; 584 if (shader->isABitmap(&bitmap, nullptr, xy)) { 585 refBitmap(bitmap); 586 return; 587 } 588 SkShader::ComposeRec rec; 589 if (shader->asACompose(&rec)) { 590 refBitmapsInShader(rec.fShaderA); 591 refBitmapsInShader(rec.fShaderB); 592 return; 593 } 594} 595 596}; // namespace uirenderer 597}; // namespace android 598