Layer.cpp revision 93ffb86b909005bbee4993fc9053f017466311c7
1/* 2 * Copyright (C) 2007 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#define ATRACE_TAG ATRACE_TAG_GRAPHICS 18 19#include <stdlib.h> 20#include <stdint.h> 21#include <sys/types.h> 22#include <math.h> 23 24#include <cutils/compiler.h> 25#include <cutils/native_handle.h> 26#include <cutils/properties.h> 27 28#include <utils/Errors.h> 29#include <utils/Log.h> 30#include <utils/StopWatch.h> 31#include <utils/Trace.h> 32 33#include <ui/GraphicBuffer.h> 34#include <ui/PixelFormat.h> 35 36#include <gui/Surface.h> 37 38#include "clz.h" 39#include "DisplayHardware/DisplayHardware.h" 40#include "DisplayHardware/HWComposer.h" 41#include "GLExtensions.h" 42#include "Layer.h" 43#include "SurfaceFlinger.h" 44#include "SurfaceTextureLayer.h" 45 46#define DEBUG_RESIZE 0 47 48namespace android { 49 50// --------------------------------------------------------------------------- 51 52Layer::Layer(SurfaceFlinger* flinger, 53 DisplayID display, const sp<Client>& client) 54 : LayerBaseClient(flinger, display, client), 55 mTextureName(-1U), 56 mQueuedFrames(0), 57 mCurrentTransform(0), 58 mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE), 59 mCurrentOpacity(true), 60 mRefreshPending(false), 61 mFrameLatencyNeeded(false), 62 mFrameLatencyOffset(0), 63 mFormat(PIXEL_FORMAT_NONE), 64 mGLExtensions(GLExtensions::getInstance()), 65 mOpaqueLayer(true), 66 mNeedsDithering(false), 67 mSecure(false), 68 mProtectedByApp(false) 69{ 70 mCurrentCrop.makeInvalid(); 71 glGenTextures(1, &mTextureName); 72} 73 74void Layer::onLayerDisplayed() { 75 if (mFrameLatencyNeeded) { 76 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 77 mFrameStats[mFrameLatencyOffset].timestamp = mSurfaceTexture->getTimestamp(); 78 mFrameStats[mFrameLatencyOffset].set = systemTime(); 79 mFrameStats[mFrameLatencyOffset].vsync = hw.getRefreshTimestamp(); 80 mFrameLatencyOffset = (mFrameLatencyOffset + 1) % 128; 81 mFrameLatencyNeeded = false; 82 } 83} 84 85void Layer::onFirstRef() 86{ 87 LayerBaseClient::onFirstRef(); 88 89 struct FrameQueuedListener : public SurfaceTexture::FrameAvailableListener { 90 FrameQueuedListener(Layer* layer) : mLayer(layer) { } 91 private: 92 wp<Layer> mLayer; 93 virtual void onFrameAvailable() { 94 sp<Layer> that(mLayer.promote()); 95 if (that != 0) { 96 that->onFrameQueued(); 97 } 98 } 99 }; 100 101 // Creates a custom BufferQueue for SurfaceTexture to use 102 sp<BufferQueue> bq = new SurfaceTextureLayer(); 103 mSurfaceTexture = new SurfaceTexture(mTextureName, true, 104 GL_TEXTURE_EXTERNAL_OES, false, bq); 105 106 mSurfaceTexture->setConsumerUsageBits(getEffectiveUsage(0)); 107 mSurfaceTexture->setFrameAvailableListener(new FrameQueuedListener(this)); 108 mSurfaceTexture->setSynchronousMode(true); 109 110#ifdef TARGET_DISABLE_TRIPLE_BUFFERING 111#warning "disabling triple buffering" 112 mSurfaceTexture->setBufferCountServer(2); 113#else 114 mSurfaceTexture->setBufferCountServer(3); 115#endif 116} 117 118Layer::~Layer() 119{ 120 mFlinger->postMessageAsync( 121 new SurfaceFlinger::MessageDestroyGLTexture(mTextureName) ); 122} 123 124void Layer::onFrameQueued() { 125 android_atomic_inc(&mQueuedFrames); 126 mFlinger->signalLayerUpdate(); 127} 128 129// called with SurfaceFlinger::mStateLock as soon as the layer is entered 130// in the purgatory list 131void Layer::onRemoved() 132{ 133 mSurfaceTexture->abandon(); 134} 135 136void Layer::setName(const String8& name) { 137 LayerBase::setName(name); 138 mSurfaceTexture->setName(name); 139} 140 141void Layer::validateVisibility(const Transform& globalTransform) { 142 LayerBase::validateVisibility(globalTransform); 143 144 // This optimization allows the SurfaceTexture to bake in 145 // the rotation so hardware overlays can be used 146 mSurfaceTexture->setTransformHint(getTransformHint()); 147} 148 149sp<ISurface> Layer::createSurface() 150{ 151 class BSurface : public BnSurface, public LayerCleaner { 152 wp<const Layer> mOwner; 153 virtual sp<ISurfaceTexture> getSurfaceTexture() const { 154 sp<ISurfaceTexture> res; 155 sp<const Layer> that( mOwner.promote() ); 156 if (that != NULL) { 157 res = that->mSurfaceTexture->getBufferQueue(); 158 } 159 return res; 160 } 161 public: 162 BSurface(const sp<SurfaceFlinger>& flinger, 163 const sp<Layer>& layer) 164 : LayerCleaner(flinger, layer), mOwner(layer) { } 165 }; 166 sp<ISurface> sur(new BSurface(mFlinger, this)); 167 return sur; 168} 169 170wp<IBinder> Layer::getSurfaceTextureBinder() const 171{ 172 return mSurfaceTexture->getBufferQueue()->asBinder(); 173} 174 175status_t Layer::setBuffers( uint32_t w, uint32_t h, 176 PixelFormat format, uint32_t flags) 177{ 178 // this surfaces pixel format 179 PixelFormatInfo info; 180 status_t err = getPixelFormatInfo(format, &info); 181 if (err) { 182 ALOGE("unsupported pixelformat %d", format); 183 return err; 184 } 185 186 // the display's pixel format 187 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 188 uint32_t const maxSurfaceDims = min( 189 hw.getMaxTextureSize(), hw.getMaxViewportDims()); 190 191 // never allow a surface larger than what our underlying GL implementation 192 // can handle. 193 if ((uint32_t(w)>maxSurfaceDims) || (uint32_t(h)>maxSurfaceDims)) { 194 ALOGE("dimensions too large %u x %u", uint32_t(w), uint32_t(h)); 195 return BAD_VALUE; 196 } 197 198 PixelFormatInfo displayInfo; 199 getPixelFormatInfo(hw.getFormat(), &displayInfo); 200 const uint32_t hwFlags = hw.getFlags(); 201 202 mFormat = format; 203 204 mSecure = (flags & ISurfaceComposer::eSecure) ? true : false; 205 mProtectedByApp = (flags & ISurfaceComposer::eProtectedByApp) ? true : false; 206 mOpaqueLayer = (flags & ISurfaceComposer::eOpaque); 207 mCurrentOpacity = getOpacityForFormat(format); 208 209 mSurfaceTexture->setDefaultBufferSize(w, h); 210 mSurfaceTexture->setDefaultBufferFormat(format); 211 mSurfaceTexture->setConsumerUsageBits(getEffectiveUsage(0)); 212 213 // we use the red index 214 int displayRedSize = displayInfo.getSize(PixelFormatInfo::INDEX_RED); 215 int layerRedsize = info.getSize(PixelFormatInfo::INDEX_RED); 216 mNeedsDithering = layerRedsize > displayRedSize; 217 218 return NO_ERROR; 219} 220 221Rect Layer::computeBufferCrop() const { 222 // Start with the SurfaceTexture's buffer crop... 223 Rect crop; 224 if (!mCurrentCrop.isEmpty()) { 225 crop = mCurrentCrop; 226 } else if (mActiveBuffer != NULL){ 227 crop = Rect(mActiveBuffer->getWidth(), mActiveBuffer->getHeight()); 228 } else { 229 crop = Rect(mTransformedBounds.width(), mTransformedBounds.height()); 230 } 231 232 // ... then reduce that in the same proportions as the window crop reduces 233 // the window size. 234 const State& s(drawingState()); 235 if (!s.active.crop.isEmpty()) { 236 // Transform the window crop to match the buffer coordinate system, 237 // which means using the inverse of the current transform set on the 238 // SurfaceTexture. 239 uint32_t invTransform = mCurrentTransform; 240 int winWidth = s.active.w; 241 int winHeight = s.active.h; 242 if (invTransform & NATIVE_WINDOW_TRANSFORM_ROT_90) { 243 invTransform ^= NATIVE_WINDOW_TRANSFORM_FLIP_V | 244 NATIVE_WINDOW_TRANSFORM_FLIP_H; 245 winWidth = s.active.h; 246 winHeight = s.active.w; 247 } 248 Rect winCrop = s.active.crop.transform(invTransform, 249 s.active.w, s.active.h); 250 251 float xScale = float(crop.width()) / float(winWidth); 252 float yScale = float(crop.height()) / float(winHeight); 253 crop.left += int(ceilf(float(winCrop.left) * xScale)); 254 crop.top += int(ceilf(float(winCrop.top) * yScale)); 255 crop.right -= int(ceilf(float(winWidth - winCrop.right) * xScale)); 256 crop.bottom -= int(ceilf(float(winHeight - winCrop.bottom) * yScale)); 257 } 258 259 return crop; 260} 261 262void Layer::setGeometry(hwc_layer_t* hwcl) 263{ 264 LayerBaseClient::setGeometry(hwcl); 265 266 hwcl->flags &= ~HWC_SKIP_LAYER; 267 268 // we can't do alpha-fade with the hwc HAL 269 const State& s(drawingState()); 270 if (s.alpha < 0xFF) { 271 hwcl->flags = HWC_SKIP_LAYER; 272 } 273 274 /* 275 * Transformations are applied in this order: 276 * 1) buffer orientation/flip/mirror 277 * 2) state transformation (window manager) 278 * 3) layer orientation (screen orientation) 279 * mTransform is already the composition of (2) and (3) 280 * (NOTE: the matrices are multiplied in reverse order) 281 */ 282 283 const Transform bufferOrientation(mCurrentTransform); 284 const Transform tr(mTransform * bufferOrientation); 285 286 // this gives us only the "orientation" component of the transform 287 const uint32_t finalTransform = tr.getOrientation(); 288 289 // we can only handle simple transformation 290 if (finalTransform & Transform::ROT_INVALID) { 291 hwcl->flags = HWC_SKIP_LAYER; 292 } else { 293 hwcl->transform = finalTransform; 294 } 295 296 Rect crop = computeBufferCrop(); 297 hwcl->sourceCrop.left = crop.left; 298 hwcl->sourceCrop.top = crop.top; 299 hwcl->sourceCrop.right = crop.right; 300 hwcl->sourceCrop.bottom = crop.bottom; 301} 302 303void Layer::setPerFrameData(hwc_layer_t* hwcl) { 304 const sp<GraphicBuffer>& buffer(mActiveBuffer); 305 if (buffer == NULL) { 306 // this can happen if the client never drew into this layer yet, 307 // or if we ran out of memory. In that case, don't let 308 // HWC handle it. 309 hwcl->flags |= HWC_SKIP_LAYER; 310 hwcl->handle = NULL; 311 } else { 312 hwcl->handle = buffer->handle; 313 } 314} 315 316void Layer::onDraw(const Region& clip) const 317{ 318 ATRACE_CALL(); 319 320 if (CC_UNLIKELY(mActiveBuffer == 0)) { 321 // the texture has not been created yet, this Layer has 322 // in fact never been drawn into. This happens frequently with 323 // SurfaceView because the WindowManager can't know when the client 324 // has drawn the first time. 325 326 // If there is nothing under us, we paint the screen in black, otherwise 327 // we just skip this update. 328 329 // figure out if there is something below us 330 Region under; 331 const SurfaceFlinger::LayerVector& drawingLayers( 332 mFlinger->mDrawingState.layersSortedByZ); 333 const size_t count = drawingLayers.size(); 334 for (size_t i=0 ; i<count ; ++i) { 335 const sp<LayerBase>& layer(drawingLayers[i]); 336 if (layer.get() == static_cast<LayerBase const*>(this)) 337 break; 338 under.orSelf(layer->visibleRegionScreen); 339 } 340 // if not everything below us is covered, we plug the holes! 341 Region holes(clip.subtract(under)); 342 if (!holes.isEmpty()) { 343 clearWithOpenGL(holes, 0, 0, 0, 1); 344 } 345 return; 346 } 347 348 if (!isProtected()) { 349 // TODO: we could be more subtle with isFixedSize() 350 const bool useFiltering = getFiltering() || needsFiltering() || isFixedSize(); 351 352 // Query the texture matrix given our current filtering mode. 353 float textureMatrix[16]; 354 mSurfaceTexture->setFilteringEnabled(useFiltering); 355 mSurfaceTexture->getTransformMatrix(textureMatrix); 356 357 // Set things up for texturing. 358 glBindTexture(GL_TEXTURE_EXTERNAL_OES, mTextureName); 359 GLenum filter = GL_NEAREST; 360 if (useFiltering) { 361 filter = GL_LINEAR; 362 } 363 glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, filter); 364 glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, filter); 365 glMatrixMode(GL_TEXTURE); 366 glLoadMatrixf(textureMatrix); 367 glMatrixMode(GL_MODELVIEW); 368 glDisable(GL_TEXTURE_2D); 369 glEnable(GL_TEXTURE_EXTERNAL_OES); 370 } else { 371 glBindTexture(GL_TEXTURE_2D, mFlinger->getProtectedTexName()); 372 glMatrixMode(GL_TEXTURE); 373 glLoadIdentity(); 374 glMatrixMode(GL_MODELVIEW); 375 glDisable(GL_TEXTURE_EXTERNAL_OES); 376 glEnable(GL_TEXTURE_2D); 377 } 378 379 drawWithOpenGL(clip); 380 381 glDisable(GL_TEXTURE_EXTERNAL_OES); 382 glDisable(GL_TEXTURE_2D); 383} 384 385// As documented in libhardware header, formats in the range 386// 0x100 - 0x1FF are specific to the HAL implementation, and 387// are known to have no alpha channel 388// TODO: move definition for device-specific range into 389// hardware.h, instead of using hard-coded values here. 390#define HARDWARE_IS_DEVICE_FORMAT(f) ((f) >= 0x100 && (f) <= 0x1FF) 391 392bool Layer::getOpacityForFormat(uint32_t format) 393{ 394 if (HARDWARE_IS_DEVICE_FORMAT(format)) { 395 return true; 396 } 397 PixelFormatInfo info; 398 status_t err = getPixelFormatInfo(PixelFormat(format), &info); 399 // in case of error (unknown format), we assume no blending 400 return (err || info.h_alpha <= info.l_alpha); 401} 402 403 404bool Layer::isOpaque() const 405{ 406 // if we don't have a buffer yet, we're translucent regardless of the 407 // layer's opaque flag. 408 if (mActiveBuffer == 0) { 409 return false; 410 } 411 412 // if the layer has the opaque flag, then we're always opaque, 413 // otherwise we use the current buffer's format. 414 return mOpaqueLayer || mCurrentOpacity; 415} 416 417bool Layer::isProtected() const 418{ 419 const sp<GraphicBuffer>& activeBuffer(mActiveBuffer); 420 return (activeBuffer != 0) && 421 (activeBuffer->getUsage() & GRALLOC_USAGE_PROTECTED); 422} 423 424uint32_t Layer::doTransaction(uint32_t flags) 425{ 426 ATRACE_CALL(); 427 428 const Layer::State& front(drawingState()); 429 const Layer::State& temp(currentState()); 430 431 const bool sizeChanged = (front.requested.w != temp.requested.w) || 432 (front.requested.h != temp.requested.h); 433 434 if (sizeChanged) { 435 // the size changed, we need to ask our client to request a new buffer 436 ALOGD_IF(DEBUG_RESIZE, 437 "doTransaction: " 438 "resize (layer=%p), requested (%dx%d), drawing (%d,%d), " 439 "scalingMode=%d", 440 this, 441 int(temp.requested.w), int(temp.requested.h), 442 int(front.requested.w), int(front.requested.h), 443 mCurrentScalingMode); 444 445 if (!isFixedSize()) { 446 // this will make sure LayerBase::doTransaction doesn't update 447 // the drawing state's size 448 Layer::State& editDraw(mDrawingState); 449 editDraw.requested.w = temp.requested.w; 450 editDraw.requested.h = temp.requested.h; 451 } 452 453 // record the new size, form this point on, when the client request 454 // a buffer, it'll get the new size. 455 mSurfaceTexture->setDefaultBufferSize(temp.requested.w, 456 temp.requested.h); 457 } 458 459 return LayerBase::doTransaction(flags); 460} 461 462bool Layer::isFixedSize() const { 463 return mCurrentScalingMode != NATIVE_WINDOW_SCALING_MODE_FREEZE; 464} 465 466bool Layer::isCropped() const { 467 return !mCurrentCrop.isEmpty(); 468} 469 470// ---------------------------------------------------------------------------- 471// pageflip handling... 472// ---------------------------------------------------------------------------- 473 474bool Layer::onPreComposition() { 475 mRefreshPending = false; 476 return mQueuedFrames > 0; 477} 478 479void Layer::lockPageFlip(bool& recomputeVisibleRegions) 480{ 481 ATRACE_CALL(); 482 483 if (mQueuedFrames > 0) { 484 485 // if we've already called updateTexImage() without going through 486 // a composition step, we have to skip this layer at this point 487 // because we cannot call updateTeximage() without a corresponding 488 // compositionComplete() call. 489 // we'll trigger an update in onPreComposition(). 490 if (mRefreshPending) { 491 mPostedDirtyRegion.clear(); 492 return; 493 } 494 mRefreshPending = true; 495 496 // Capture the old state of the layer for comparisons later 497 const bool oldOpacity = isOpaque(); 498 sp<GraphicBuffer> oldActiveBuffer = mActiveBuffer; 499 500 // signal another event if we have more frames pending 501 if (android_atomic_dec(&mQueuedFrames) > 1) { 502 mFlinger->signalLayerUpdate(); 503 } 504 505 if (mSurfaceTexture->updateTexImage() < NO_ERROR) { 506 // something happened! 507 recomputeVisibleRegions = true; 508 return; 509 } 510 511 // update the active buffer 512 mActiveBuffer = mSurfaceTexture->getCurrentBuffer(); 513 mFrameLatencyNeeded = true; 514 515 if (oldActiveBuffer == NULL && mActiveBuffer != NULL) { 516 // the first time we receive a buffer, we need to trigger a 517 // geometry invalidation. 518 mFlinger->invalidateHwcGeometry(); 519 } 520 521 Rect crop(mSurfaceTexture->getCurrentCrop()); 522 const uint32_t transform(mSurfaceTexture->getCurrentTransform()); 523 const uint32_t scalingMode(mSurfaceTexture->getCurrentScalingMode()); 524 if ((crop != mCurrentCrop) || 525 (transform != mCurrentTransform) || 526 (scalingMode != mCurrentScalingMode)) 527 { 528 mCurrentCrop = crop; 529 mCurrentTransform = transform; 530 mCurrentScalingMode = scalingMode; 531 mFlinger->invalidateHwcGeometry(); 532 } 533 534 uint32_t bufWidth = mActiveBuffer->getWidth(); 535 uint32_t bufHeight = mActiveBuffer->getHeight(); 536 if (oldActiveBuffer != NULL) { 537 if (bufWidth != uint32_t(oldActiveBuffer->width) || 538 bufHeight != uint32_t(oldActiveBuffer->height)) { 539 mFlinger->invalidateHwcGeometry(); 540 } 541 } 542 543 mCurrentOpacity = getOpacityForFormat(mActiveBuffer->format); 544 if (oldOpacity != isOpaque()) { 545 recomputeVisibleRegions = true; 546 } 547 548 glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 549 glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 550 551 // update the layer size if needed 552 const Layer::State& front(drawingState()); 553 554 // FIXME: mPostedDirtyRegion = dirty & bounds 555 mPostedDirtyRegion.set(front.active.w, front.active.h); 556 557 if ((front.active.w != front.requested.w) || 558 (front.active.h != front.requested.h)) 559 { 560 // check that we received a buffer of the right size 561 // (Take the buffer's orientation into account) 562 if (mCurrentTransform & Transform::ROT_90) { 563 swap(bufWidth, bufHeight); 564 } 565 566 if (isFixedSize() || 567 (bufWidth == front.requested.w && 568 bufHeight == front.requested.h)) 569 { 570 // Here we pretend the transaction happened by updating the 571 // current and drawing states. Drawing state is only accessed 572 // in this thread, no need to have it locked 573 Layer::State& editDraw(mDrawingState); 574 editDraw.active.w = editDraw.requested.w; 575 editDraw.active.h = editDraw.requested.h; 576 577 // We also need to update the current state so that we don't 578 // end-up doing too much work during the next transaction. 579 // NOTE: We actually don't need hold the transaction lock here 580 // because State::w and State::h are only accessed from 581 // this thread 582 Layer::State& editTemp(currentState()); 583 editTemp.active.w = editDraw.active.w; 584 editTemp.active.h = editDraw.active.h; 585 586 // recompute visible region 587 recomputeVisibleRegions = true; 588 } 589 590 ALOGD_IF(DEBUG_RESIZE, 591 "lockPageFlip : " 592 " (layer=%p), buffer (%ux%u, tr=%02x), " 593 "requested (%dx%d)", 594 this, 595 bufWidth, bufHeight, mCurrentTransform, 596 front.requested.w, front.requested.h); 597 } 598 } 599} 600 601void Layer::unlockPageFlip( 602 const Transform& planeTransform, Region& outDirtyRegion) 603{ 604 ATRACE_CALL(); 605 606 Region postedRegion(mPostedDirtyRegion); 607 if (!postedRegion.isEmpty()) { 608 mPostedDirtyRegion.clear(); 609 if (!visibleRegionScreen.isEmpty()) { 610 // The dirty region is given in the layer's coordinate space 611 // transform the dirty region by the surface's transformation 612 // and the global transformation. 613 const Layer::State& s(drawingState()); 614 const Transform tr(planeTransform * s.transform); 615 postedRegion = tr.transform(postedRegion); 616 617 // At this point, the dirty region is in screen space. 618 // Make sure it's constrained by the visible region (which 619 // is in screen space as well). 620 postedRegion.andSelf(visibleRegionScreen); 621 outDirtyRegion.orSelf(postedRegion); 622 } 623 } 624} 625 626void Layer::dump(String8& result, char* buffer, size_t SIZE) const 627{ 628 LayerBaseClient::dump(result, buffer, SIZE); 629 630 sp<const GraphicBuffer> buf0(mActiveBuffer); 631 uint32_t w0=0, h0=0, s0=0, f0=0; 632 if (buf0 != 0) { 633 w0 = buf0->getWidth(); 634 h0 = buf0->getHeight(); 635 s0 = buf0->getStride(); 636 f0 = buf0->format; 637 } 638 snprintf(buffer, SIZE, 639 " " 640 "format=%2d, activeBuffer=[%4ux%4u:%4u,%3X]," 641 " transform-hint=0x%02x, queued-frames=%d, mRefreshPending=%d\n", 642 mFormat, w0, h0, s0,f0, 643 getTransformHint(), mQueuedFrames, mRefreshPending); 644 645 result.append(buffer); 646 647 if (mSurfaceTexture != 0) { 648 mSurfaceTexture->dump(result, " ", buffer, SIZE); 649 } 650} 651 652void Layer::dumpStats(String8& result, char* buffer, size_t SIZE) const 653{ 654 LayerBaseClient::dumpStats(result, buffer, SIZE); 655 const size_t o = mFrameLatencyOffset; 656 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 657 const nsecs_t period = hw.getRefreshPeriod(); 658 result.appendFormat("%lld\n", period); 659 for (size_t i=0 ; i<128 ; i++) { 660 const size_t index = (o+i) % 128; 661 const nsecs_t time_app = mFrameStats[index].timestamp; 662 const nsecs_t time_set = mFrameStats[index].set; 663 const nsecs_t time_vsync = mFrameStats[index].vsync; 664 result.appendFormat("%lld\t%lld\t%lld\n", 665 time_app, 666 time_vsync, 667 time_set); 668 } 669 result.append("\n"); 670} 671 672void Layer::clearStats() 673{ 674 LayerBaseClient::clearStats(); 675 memset(mFrameStats, 0, sizeof(mFrameStats)); 676} 677 678uint32_t Layer::getEffectiveUsage(uint32_t usage) const 679{ 680 // TODO: should we do something special if mSecure is set? 681 if (mProtectedByApp) { 682 // need a hardware-protected path to external video sink 683 usage |= GraphicBuffer::USAGE_PROTECTED; 684 } 685 usage |= GraphicBuffer::USAGE_HW_COMPOSER; 686 return usage; 687} 688 689uint32_t Layer::getTransformHint() const { 690 uint32_t orientation = 0; 691 if (!mFlinger->mDebugDisableTransformHint) { 692 orientation = getPlaneOrientation(); 693 if (orientation & Transform::ROT_INVALID) { 694 orientation = 0; 695 } 696 } 697 return orientation; 698} 699 700// --------------------------------------------------------------------------- 701 702 703}; // namespace android 704