HWComposer.cpp revision afaf14b9fbfe8943d845e2f01e8a401ad7a4d854
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS 18 19// Uncomment this to remove support for HWC_DEVICE_API_VERSION_0_3 and older 20#define HWC_REMOVE_DEPRECATED_VERSIONS 1 21 22#include <stdint.h> 23#include <stdio.h> 24#include <stdlib.h> 25#include <string.h> 26#include <sys/types.h> 27 28#include <utils/Errors.h> 29#include <utils/misc.h> 30#include <utils/String8.h> 31#include <utils/Thread.h> 32#include <utils/Trace.h> 33#include <utils/Vector.h> 34 35#include <ui/GraphicBuffer.h> 36 37#include <hardware/hardware.h> 38#include <hardware/hwcomposer.h> 39 40#include <cutils/log.h> 41#include <cutils/properties.h> 42 43#include "Layer.h" // needed only for debugging 44#include "HWComposer.h" 45#include "SurfaceFlinger.h" 46#include <utils/CallStack.h> 47 48namespace android { 49 50#define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION 51 52#define NUM_PHYSICAL_DISPLAYS HWC_NUM_DISPLAY_TYPES 53#define VIRTUAL_DISPLAY_ID_BASE HWC_NUM_DISPLAY_TYPES 54 55static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) { 56 uint32_t hwcVersion = hwc->common.version; 57 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK; 58} 59 60static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) { 61 uint32_t hwcVersion = hwc->common.version; 62 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK; 63} 64 65static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc, 66 uint32_t version) { 67 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK); 68} 69 70// --------------------------------------------------------------------------- 71 72struct HWComposer::cb_context { 73 struct callbacks : public hwc_procs_t { 74 // these are here to facilitate the transition when adding 75 // new callbacks (an implementation can check for NULL before 76 // calling a new callback). 77 void (*zero[4])(void); 78 }; 79 callbacks procs; 80 HWComposer* hwc; 81}; 82 83// --------------------------------------------------------------------------- 84 85HWComposer::HWComposer( 86 const sp<SurfaceFlinger>& flinger, 87 EventHandler& handler) 88 : mFlinger(flinger), 89 mFbDev(0), mHwc(0), mNumDisplays(1), 90 mCBContext(new cb_context), 91 mEventHandler(handler), 92 mVSyncCount(0), mDebugForceFakeVSync(false) 93{ 94 for (size_t i =0 ; i<MAX_DISPLAYS ; i++) { 95 mLists[i] = 0; 96 } 97 98 char value[PROPERTY_VALUE_MAX]; 99 property_get("debug.sf.no_hw_vsync", value, "0"); 100 mDebugForceFakeVSync = atoi(value); 101 102 bool needVSyncThread = true; 103 104 // Note: some devices may insist that the FB HAL be opened before HWC. 105 int fberr = loadFbHalModule(); 106 loadHwcModule(); 107 108 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 109 // close FB HAL if we don't needed it. 110 // FIXME: this is temporary until we're not forced to open FB HAL 111 // before HWC. 112 framebuffer_close(mFbDev); 113 mFbDev = NULL; 114 } 115 116 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory. 117 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 118 && !mFbDev) { 119 ALOGE("ERROR: failed to open framebuffer (%s), aborting", 120 strerror(-fberr)); 121 abort(); 122 } 123 124 // these display IDs are always reserved 125 for (size_t i=0 ; i<NUM_PHYSICAL_DISPLAYS ; i++) { 126 mAllocatedDisplayIDs.markBit(i); 127 } 128 129 if (mHwc) { 130 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER, 131 (hwcApiVersion(mHwc) >> 24) & 0xff, 132 (hwcApiVersion(mHwc) >> 16) & 0xff); 133 if (mHwc->registerProcs) { 134 mCBContext->hwc = this; 135 mCBContext->procs.invalidate = &hook_invalidate; 136 mCBContext->procs.vsync = &hook_vsync; 137 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 138 mCBContext->procs.hotplug = &hook_hotplug; 139 else 140 mCBContext->procs.hotplug = NULL; 141 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero)); 142 mHwc->registerProcs(mHwc, &mCBContext->procs); 143 } 144 145 // don't need a vsync thread if we have a hardware composer 146 needVSyncThread = false; 147 // always turn vsync off when we start 148 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 149 150 // the number of displays we actually have depends on the 151 // hw composer version 152 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 153 // 1.2 adds support for virtual displays 154 mNumDisplays = MAX_DISPLAYS; 155 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 156 // 1.1 adds support for multiple displays 157 mNumDisplays = NUM_PHYSICAL_DISPLAYS; 158 } else { 159 mNumDisplays = 1; 160 } 161 } 162 163 if (mFbDev) { 164 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)), 165 "should only have fbdev if no hwc or hwc is 1.0"); 166 167 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]); 168 disp.connected = true; 169 disp.width = mFbDev->width; 170 disp.height = mFbDev->height; 171 disp.format = mFbDev->format; 172 disp.xdpi = mFbDev->xdpi; 173 disp.ydpi = mFbDev->ydpi; 174 if (disp.refresh == 0) { 175 disp.refresh = nsecs_t(1e9 / mFbDev->fps); 176 ALOGW("getting VSYNC period from fb HAL: %lld", disp.refresh); 177 } 178 if (disp.refresh == 0) { 179 disp.refresh = nsecs_t(1e9 / 60.0); 180 ALOGW("getting VSYNC period from thin air: %lld", 181 mDisplayData[HWC_DISPLAY_PRIMARY].refresh); 182 } 183 } else if (mHwc) { 184 // here we're guaranteed to have at least HWC 1.1 185 for (size_t i =0 ; i<NUM_PHYSICAL_DISPLAYS ; i++) { 186 queryDisplayProperties(i); 187 } 188 } 189 190 if (needVSyncThread) { 191 // we don't have VSYNC support, we need to fake it 192 mVSyncThread = new VSyncThread(*this); 193 } 194} 195 196HWComposer::~HWComposer() { 197 if (mHwc) { 198 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 199 } 200 if (mVSyncThread != NULL) { 201 mVSyncThread->requestExitAndWait(); 202 } 203 if (mHwc) { 204 hwc_close_1(mHwc); 205 } 206 if (mFbDev) { 207 framebuffer_close(mFbDev); 208 } 209 delete mCBContext; 210} 211 212// Load and prepare the hardware composer module. Sets mHwc. 213void HWComposer::loadHwcModule() 214{ 215 hw_module_t const* module; 216 217 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) { 218 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID); 219 return; 220 } 221 222 int err = hwc_open_1(module, &mHwc); 223 if (err) { 224 ALOGE("%s device failed to initialize (%s)", 225 HWC_HARDWARE_COMPOSER, strerror(-err)); 226 return; 227 } 228 229 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) || 230 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION || 231 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) { 232 ALOGE("%s device version %#x unsupported, will not be used", 233 HWC_HARDWARE_COMPOSER, mHwc->common.version); 234 hwc_close_1(mHwc); 235 mHwc = NULL; 236 return; 237 } 238} 239 240// Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev. 241int HWComposer::loadFbHalModule() 242{ 243 hw_module_t const* module; 244 245 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module); 246 if (err != 0) { 247 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID); 248 return err; 249 } 250 251 return framebuffer_open(module, &mFbDev); 252} 253 254status_t HWComposer::initCheck() const { 255 return mHwc ? NO_ERROR : NO_INIT; 256} 257 258void HWComposer::hook_invalidate(const struct hwc_procs* procs) { 259 cb_context* ctx = reinterpret_cast<cb_context*>( 260 const_cast<hwc_procs_t*>(procs)); 261 ctx->hwc->invalidate(); 262} 263 264void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp, 265 int64_t timestamp) { 266 cb_context* ctx = reinterpret_cast<cb_context*>( 267 const_cast<hwc_procs_t*>(procs)); 268 ctx->hwc->vsync(disp, timestamp); 269} 270 271void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp, 272 int connected) { 273 cb_context* ctx = reinterpret_cast<cb_context*>( 274 const_cast<hwc_procs_t*>(procs)); 275 ctx->hwc->hotplug(disp, connected); 276} 277 278void HWComposer::invalidate() { 279 mFlinger->repaintEverything(); 280} 281 282void HWComposer::vsync(int disp, int64_t timestamp) { 283 ATRACE_INT("VSYNC", ++mVSyncCount&1); 284 mEventHandler.onVSyncReceived(disp, timestamp); 285 Mutex::Autolock _l(mLock); 286 mLastHwVSync = timestamp; 287} 288 289void HWComposer::hotplug(int disp, int connected) { 290 if (disp == HWC_DISPLAY_PRIMARY || disp >= VIRTUAL_DISPLAY_ID_BASE) { 291 ALOGE("hotplug event received for invalid display: disp=%d connected=%d", 292 disp, connected); 293 return; 294 } 295 queryDisplayProperties(disp); 296 mEventHandler.onHotplugReceived(disp, bool(connected)); 297} 298 299static const uint32_t DISPLAY_ATTRIBUTES[] = { 300 HWC_DISPLAY_VSYNC_PERIOD, 301 HWC_DISPLAY_WIDTH, 302 HWC_DISPLAY_HEIGHT, 303 HWC_DISPLAY_DPI_X, 304 HWC_DISPLAY_DPI_Y, 305 HWC_DISPLAY_NO_ATTRIBUTE, 306}; 307#define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0]) 308 309// http://developer.android.com/reference/android/util/DisplayMetrics.html 310#define ANDROID_DENSITY_TV 213 311#define ANDROID_DENSITY_XHIGH 320 312 313status_t HWComposer::queryDisplayProperties(int disp) { 314 315 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 316 317 // use zero as default value for unspecified attributes 318 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1]; 319 memset(values, 0, sizeof(values)); 320 321 uint32_t config; 322 size_t numConfigs = 1; 323 status_t err = mHwc->getDisplayConfigs(mHwc, disp, &config, &numConfigs); 324 if (err != NO_ERROR) { 325 // this can happen if an unpluggable display is not connected 326 mDisplayData[disp].connected = false; 327 return err; 328 } 329 330 err = mHwc->getDisplayAttributes(mHwc, disp, config, DISPLAY_ATTRIBUTES, values); 331 if (err != NO_ERROR) { 332 // we can't get this display's info. turn it off. 333 mDisplayData[disp].connected = false; 334 return err; 335 } 336 337 int32_t w = 0, h = 0; 338 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { 339 switch (DISPLAY_ATTRIBUTES[i]) { 340 case HWC_DISPLAY_VSYNC_PERIOD: 341 mDisplayData[disp].refresh = nsecs_t(values[i]); 342 break; 343 case HWC_DISPLAY_WIDTH: 344 mDisplayData[disp].width = values[i]; 345 break; 346 case HWC_DISPLAY_HEIGHT: 347 mDisplayData[disp].height = values[i]; 348 break; 349 case HWC_DISPLAY_DPI_X: 350 mDisplayData[disp].xdpi = values[i] / 1000.0f; 351 break; 352 case HWC_DISPLAY_DPI_Y: 353 mDisplayData[disp].ydpi = values[i] / 1000.0f; 354 break; 355 default: 356 ALOG_ASSERT(false, "unknown display attribute[%d] %#x", 357 i, DISPLAY_ATTRIBUTES[i]); 358 break; 359 } 360 } 361 362 // FIXME: what should we set the format to? 363 mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888; 364 mDisplayData[disp].connected = true; 365 if (mDisplayData[disp].xdpi == 0.0f || mDisplayData[disp].ydpi == 0.0f) { 366 // is there anything smarter we can do? 367 if (h >= 1080) { 368 mDisplayData[disp].xdpi = ANDROID_DENSITY_XHIGH; 369 mDisplayData[disp].ydpi = ANDROID_DENSITY_XHIGH; 370 } else { 371 mDisplayData[disp].xdpi = ANDROID_DENSITY_TV; 372 mDisplayData[disp].ydpi = ANDROID_DENSITY_TV; 373 } 374 } 375 return NO_ERROR; 376} 377 378int32_t HWComposer::allocateDisplayId() { 379 if (mAllocatedDisplayIDs.count() >= mNumDisplays) { 380 return NO_MEMORY; 381 } 382 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit(); 383 mAllocatedDisplayIDs.markBit(id); 384 mDisplayData[id].connected = true; 385 return id; 386} 387 388status_t HWComposer::freeDisplayId(int32_t id) { 389 if (id < NUM_PHYSICAL_DISPLAYS) { 390 // cannot free the reserved IDs 391 return BAD_VALUE; 392 } 393 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 394 return BAD_INDEX; 395 } 396 mAllocatedDisplayIDs.clearBit(id); 397 mDisplayData[id].connected = false; 398 return NO_ERROR; 399} 400 401nsecs_t HWComposer::getRefreshPeriod(int disp) const { 402 return mDisplayData[disp].refresh; 403} 404 405nsecs_t HWComposer::getRefreshTimestamp(int disp) const { 406 // this returns the last refresh timestamp. 407 // if the last one is not available, we estimate it based on 408 // the refresh period and whatever closest timestamp we have. 409 Mutex::Autolock _l(mLock); 410 nsecs_t now = systemTime(CLOCK_MONOTONIC); 411 return now - ((now - mLastHwVSync) % mDisplayData[disp].refresh); 412} 413 414sp<Fence> HWComposer::getDisplayFence(int disp) const { 415 return mDisplayData[disp].lastDisplayFence; 416} 417 418 419uint32_t HWComposer::getWidth(int disp) const { 420 return mDisplayData[disp].width; 421} 422 423uint32_t HWComposer::getHeight(int disp) const { 424 return mDisplayData[disp].height; 425} 426 427uint32_t HWComposer::getFormat(int disp) const { 428 return mDisplayData[disp].format; 429} 430 431float HWComposer::getDpiX(int disp) const { 432 return mDisplayData[disp].xdpi; 433} 434 435float HWComposer::getDpiY(int disp) const { 436 return mDisplayData[disp].ydpi; 437} 438 439bool HWComposer::isConnected(int disp) const { 440 return mDisplayData[disp].connected; 441} 442 443void HWComposer::eventControl(int disp, int event, int enabled) { 444 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) { 445 ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)", 446 event, disp, enabled); 447 return; 448 } 449 if (event != EVENT_VSYNC) { 450 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)", 451 event, disp, enabled); 452 return; 453 } 454 status_t err = NO_ERROR; 455 if (mHwc && !mDebugForceFakeVSync) { 456 // NOTE: we use our own internal lock here because we have to call 457 // into the HWC with the lock held, and we want to make sure 458 // that even if HWC blocks (which it shouldn't), it won't 459 // affect other threads. 460 Mutex::Autolock _l(mEventControlLock); 461 const int32_t eventBit = 1UL << event; 462 const int32_t newValue = enabled ? eventBit : 0; 463 const int32_t oldValue = mDisplayData[disp].events & eventBit; 464 if (newValue != oldValue) { 465 ATRACE_CALL(); 466 err = mHwc->eventControl(mHwc, disp, event, enabled); 467 if (!err) { 468 int32_t& events(mDisplayData[disp].events); 469 events = (events & ~eventBit) | newValue; 470 } 471 } 472 // error here should not happen -- not sure what we should 473 // do if it does. 474 ALOGE_IF(err, "eventControl(%d, %d) failed %s", 475 event, enabled, strerror(-err)); 476 } 477 478 if (err == NO_ERROR && mVSyncThread != NULL) { 479 mVSyncThread->setEnabled(enabled); 480 } 481} 482 483status_t HWComposer::createWorkList(int32_t id, size_t numLayers) { 484 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 485 return BAD_INDEX; 486 } 487 488 if (mHwc) { 489 DisplayData& disp(mDisplayData[id]); 490 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 491 // we need space for the HWC_FRAMEBUFFER_TARGET 492 numLayers++; 493 } 494 if (disp.capacity < numLayers || disp.list == NULL) { 495 size_t size = sizeof(hwc_display_contents_1_t) 496 + numLayers * sizeof(hwc_layer_1_t); 497 free(disp.list); 498 disp.list = (hwc_display_contents_1_t*)malloc(size); 499 disp.capacity = numLayers; 500 } 501 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 502 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1]; 503 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t)); 504 const hwc_rect_t r = { 0, 0, (int) disp.width, (int) disp.height }; 505 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 506 disp.framebufferTarget->hints = 0; 507 disp.framebufferTarget->flags = 0; 508 disp.framebufferTarget->handle = disp.fbTargetHandle; 509 disp.framebufferTarget->transform = 0; 510 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT; 511 disp.framebufferTarget->sourceCrop = r; 512 disp.framebufferTarget->displayFrame = r; 513 disp.framebufferTarget->visibleRegionScreen.numRects = 1; 514 disp.framebufferTarget->visibleRegionScreen.rects = 515 &disp.framebufferTarget->displayFrame; 516 disp.framebufferTarget->acquireFenceFd = -1; 517 disp.framebufferTarget->releaseFenceFd = -1; 518 disp.framebufferTarget->planeAlpha = 0xFF; 519 } 520 disp.list->retireFenceFd = -1; 521 disp.list->flags = HWC_GEOMETRY_CHANGED; 522 disp.list->numHwLayers = numLayers; 523 } 524 return NO_ERROR; 525} 526 527status_t HWComposer::setFramebufferTarget(int32_t id, 528 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) { 529 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 530 return BAD_INDEX; 531 } 532 DisplayData& disp(mDisplayData[id]); 533 if (!disp.framebufferTarget) { 534 // this should never happen, but apparently eglCreateWindowSurface() 535 // triggers a Surface::queueBuffer() on some 536 // devices (!?) -- log and ignore. 537 ALOGE("HWComposer: framebufferTarget is null"); 538// CallStack stack; 539// stack.update(); 540// stack.dump(""); 541 return NO_ERROR; 542 } 543 544 int acquireFenceFd = -1; 545 if (acquireFence->isValid()) { 546 acquireFenceFd = acquireFence->dup(); 547 } 548 549 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd); 550 disp.fbTargetHandle = buf->handle; 551 disp.framebufferTarget->handle = disp.fbTargetHandle; 552 disp.framebufferTarget->acquireFenceFd = acquireFenceFd; 553 return NO_ERROR; 554} 555 556status_t HWComposer::prepare() { 557 for (size_t i=0 ; i<mNumDisplays ; i++) { 558 DisplayData& disp(mDisplayData[i]); 559 if (disp.framebufferTarget) { 560 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET 561 // DO NOT reset the handle field to NULL, because it's possible 562 // that we have nothing to redraw (eg: eglSwapBuffers() not called) 563 // in which case, we should continue to use the same buffer. 564 LOG_FATAL_IF(disp.list == NULL); 565 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 566 } 567 if (!disp.connected && disp.list != NULL) { 568 ALOGW("WARNING: disp %d: connected, non-null list, layers=%d", 569 i, disp.list->numHwLayers); 570 } 571 mLists[i] = disp.list; 572 if (mLists[i]) { 573 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 574 mLists[i]->outbuf = NULL; 575 mLists[i]->outbufAcquireFenceFd = -1; 576 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 577 // garbage data to catch improper use 578 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF; 579 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF; 580 } else { 581 mLists[i]->dpy = EGL_NO_DISPLAY; 582 mLists[i]->sur = EGL_NO_SURFACE; 583 } 584 } 585 } 586 587 int err = mHwc->prepare(mHwc, mNumDisplays, mLists); 588 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err)); 589 590 if (err == NO_ERROR) { 591 // here we're just making sure that "skip" layers are set 592 // to HWC_FRAMEBUFFER and we're also counting how many layers 593 // we have of each type. 594 for (size_t i=0 ; i<mNumDisplays ; i++) { 595 DisplayData& disp(mDisplayData[i]); 596 disp.hasFbComp = false; 597 disp.hasOvComp = false; 598 if (disp.list) { 599 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 600 hwc_layer_1_t& l = disp.list->hwLayers[i]; 601 602 //ALOGD("prepare: %d, type=%d, handle=%p", 603 // i, l.compositionType, l.handle); 604 605 if (l.flags & HWC_SKIP_LAYER) { 606 l.compositionType = HWC_FRAMEBUFFER; 607 } 608 if (l.compositionType == HWC_FRAMEBUFFER) { 609 disp.hasFbComp = true; 610 } 611 if (l.compositionType == HWC_OVERLAY) { 612 disp.hasOvComp = true; 613 } 614 } 615 } 616 } 617 } 618 return (status_t)err; 619} 620 621bool HWComposer::hasHwcComposition(int32_t id) const { 622 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 623 return false; 624 return mDisplayData[id].hasOvComp; 625} 626 627bool HWComposer::hasGlesComposition(int32_t id) const { 628 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 629 return true; 630 return mDisplayData[id].hasFbComp; 631} 632 633sp<Fence> HWComposer::getAndResetReleaseFence(int32_t id) { 634 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 635 return Fence::NO_FENCE; 636 637 int fd = INVALID_OPERATION; 638 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 639 const DisplayData& disp(mDisplayData[id]); 640 if (disp.framebufferTarget) { 641 fd = disp.framebufferTarget->releaseFenceFd; 642 disp.framebufferTarget->acquireFenceFd = -1; 643 disp.framebufferTarget->releaseFenceFd = -1; 644 } 645 } 646 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE; 647} 648 649status_t HWComposer::commit() { 650 int err = NO_ERROR; 651 if (mHwc) { 652 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 653 // On version 1.0, the OpenGL ES target surface is communicated 654 // by the (dpy, sur) fields and we are guaranteed to have only 655 // a single display. 656 mLists[0]->dpy = eglGetCurrentDisplay(); 657 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW); 658 } 659 660 // For virtual displays, the framebufferTarget buffer also serves as 661 // the HWC output buffer, so we need to copy the buffer handle and 662 // dup() the acquire fence. 663 for (size_t i=VIRTUAL_DISPLAY_ID_BASE; i<mNumDisplays; i++) { 664 DisplayData& disp(mDisplayData[i]); 665 if (disp.framebufferTarget) { 666 mLists[i]->outbuf = disp.framebufferTarget->handle; 667 mLists[i]->outbufAcquireFenceFd = 668 dup(disp.framebufferTarget->acquireFenceFd); 669 } 670 } 671 672 err = mHwc->set(mHwc, mNumDisplays, mLists); 673 674 for (size_t i=0 ; i<mNumDisplays ; i++) { 675 DisplayData& disp(mDisplayData[i]); 676 disp.lastDisplayFence = disp.lastRetireFence; 677 disp.lastRetireFence = Fence::NO_FENCE; 678 if (disp.list) { 679 if (disp.list->retireFenceFd != -1) { 680 disp.lastRetireFence = new Fence(disp.list->retireFenceFd); 681 disp.list->retireFenceFd = -1; 682 } 683 disp.list->flags &= ~HWC_GEOMETRY_CHANGED; 684 } 685 } 686 } 687 return (status_t)err; 688} 689 690status_t HWComposer::release(int disp) { 691 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE); 692 if (mHwc) { 693 eventControl(disp, HWC_EVENT_VSYNC, 0); 694 return (status_t)mHwc->blank(mHwc, disp, 1); 695 } 696 return NO_ERROR; 697} 698 699status_t HWComposer::acquire(int disp) { 700 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE); 701 if (mHwc) { 702 return (status_t)mHwc->blank(mHwc, disp, 0); 703 } 704 return NO_ERROR; 705} 706 707void HWComposer::disconnectDisplay(int disp) { 708 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY); 709 if (disp >= HWC_NUM_DISPLAY_TYPES) { 710 // nothing to do for these yet 711 return; 712 } 713 DisplayData& dd(mDisplayData[disp]); 714 if (dd.list != NULL) { 715 free(dd.list); 716 dd.list = NULL; 717 dd.framebufferTarget = NULL; // points into dd.list 718 dd.fbTargetHandle = NULL; 719 } 720} 721 722int HWComposer::getVisualID() const { 723 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 724 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 725 // is supported by the implementation. we can only be in this case 726 // if we have HWC 1.1 727 return HAL_PIXEL_FORMAT_RGBA_8888; 728 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 729 } else { 730 return mFbDev->format; 731 } 732} 733 734bool HWComposer::supportsFramebufferTarget() const { 735 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 736} 737 738int HWComposer::fbPost(int32_t id, 739 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 740 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 741 return setFramebufferTarget(id, acquireFence, buffer); 742 } else { 743 acquireFence->waitForever(1000, "HWComposer::fbPost"); 744 return mFbDev->post(mFbDev, buffer->handle); 745 } 746} 747 748int HWComposer::fbCompositionComplete() { 749 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 750 return NO_ERROR; 751 752 if (mFbDev->compositionComplete) { 753 return mFbDev->compositionComplete(mFbDev); 754 } else { 755 return INVALID_OPERATION; 756 } 757} 758 759void HWComposer::fbDump(String8& result) { 760 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) { 761 const size_t SIZE = 4096; 762 char buffer[SIZE]; 763 mFbDev->dump(mFbDev, buffer, SIZE); 764 result.append(buffer); 765 } 766} 767 768/* 769 * Helper template to implement a concrete HWCLayer 770 * This holds the pointer to the concrete hwc layer type 771 * and implements the "iterable" side of HWCLayer. 772 */ 773template<typename CONCRETE, typename HWCTYPE> 774class Iterable : public HWComposer::HWCLayer { 775protected: 776 HWCTYPE* const mLayerList; 777 HWCTYPE* mCurrentLayer; 778 Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { } 779 inline HWCTYPE const * getLayer() const { return mCurrentLayer; } 780 inline HWCTYPE* getLayer() { return mCurrentLayer; } 781 virtual ~Iterable() { } 782private: 783 // returns a copy of ourselves 784 virtual HWComposer::HWCLayer* dup() { 785 return new CONCRETE( static_cast<const CONCRETE&>(*this) ); 786 } 787 virtual status_t setLayer(size_t index) { 788 mCurrentLayer = &mLayerList[index]; 789 return NO_ERROR; 790 } 791}; 792 793/* 794 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0. 795 * This implements the HWCLayer side of HWCIterableLayer. 796 */ 797class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> { 798 struct hwc_composer_device_1* mHwc; 799public: 800 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer) 801 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { } 802 803 virtual int32_t getCompositionType() const { 804 return getLayer()->compositionType; 805 } 806 virtual uint32_t getHints() const { 807 return getLayer()->hints; 808 } 809 virtual sp<Fence> getAndResetReleaseFence() { 810 int fd = getLayer()->releaseFenceFd; 811 getLayer()->releaseFenceFd = -1; 812 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE; 813 } 814 virtual void setAcquireFenceFd(int fenceFd) { 815 getLayer()->acquireFenceFd = fenceFd; 816 } 817 virtual void setPerFrameDefaultState() { 818 //getLayer()->compositionType = HWC_FRAMEBUFFER; 819 } 820 virtual void setPlaneAlpha(uint8_t alpha) { 821 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 822 getLayer()->planeAlpha = alpha; 823 } else { 824 if (alpha < 0xFF) { 825 getLayer()->flags |= HWC_SKIP_LAYER; 826 } 827 } 828 } 829 virtual void setDefaultState() { 830 hwc_layer_1_t* const l = getLayer(); 831 l->compositionType = HWC_FRAMEBUFFER; 832 l->hints = 0; 833 l->flags = HWC_SKIP_LAYER; 834 l->handle = 0; 835 l->transform = 0; 836 l->blending = HWC_BLENDING_NONE; 837 l->visibleRegionScreen.numRects = 0; 838 l->visibleRegionScreen.rects = NULL; 839 l->acquireFenceFd = -1; 840 l->releaseFenceFd = -1; 841 l->planeAlpha = 0xFF; 842 } 843 virtual void setSkip(bool skip) { 844 if (skip) { 845 getLayer()->flags |= HWC_SKIP_LAYER; 846 } else { 847 getLayer()->flags &= ~HWC_SKIP_LAYER; 848 } 849 } 850 virtual void setBlending(uint32_t blending) { 851 getLayer()->blending = blending; 852 } 853 virtual void setTransform(uint32_t transform) { 854 getLayer()->transform = transform; 855 } 856 virtual void setFrame(const Rect& frame) { 857 reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame; 858 } 859 virtual void setCrop(const Rect& crop) { 860 reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop; 861 } 862 virtual void setVisibleRegionScreen(const Region& reg) { 863 // Region::getSharedBuffer creates a reference to the underlying 864 // SharedBuffer of this Region, this reference is freed 865 // in onDisplayed() 866 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 867 SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects); 868 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data()); 869 } 870 virtual void setBuffer(const sp<GraphicBuffer>& buffer) { 871 if (buffer == 0 || buffer->handle == 0) { 872 getLayer()->compositionType = HWC_FRAMEBUFFER; 873 getLayer()->flags |= HWC_SKIP_LAYER; 874 getLayer()->handle = 0; 875 } else { 876 getLayer()->handle = buffer->handle; 877 } 878 } 879 virtual void onDisplayed() { 880 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 881 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects); 882 if (sb) { 883 sb->release(); 884 // not technically needed but safer 885 visibleRegion.numRects = 0; 886 visibleRegion.rects = NULL; 887 } 888 889 getLayer()->acquireFenceFd = -1; 890 } 891}; 892 893/* 894 * returns an iterator initialized at a given index in the layer list 895 */ 896HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) { 897 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 898 return LayerListIterator(); 899 } 900 const DisplayData& disp(mDisplayData[id]); 901 if (!mHwc || !disp.list || index > disp.list->numHwLayers) { 902 return LayerListIterator(); 903 } 904 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers), index); 905} 906 907/* 908 * returns an iterator on the beginning of the layer list 909 */ 910HWComposer::LayerListIterator HWComposer::begin(int32_t id) { 911 return getLayerIterator(id, 0); 912} 913 914/* 915 * returns an iterator on the end of the layer list 916 */ 917HWComposer::LayerListIterator HWComposer::end(int32_t id) { 918 size_t numLayers = 0; 919 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) { 920 const DisplayData& disp(mDisplayData[id]); 921 if (mHwc && disp.list) { 922 numLayers = disp.list->numHwLayers; 923 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 924 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET, 925 // which we ignore when iterating through the layer list. 926 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id); 927 if (numLayers) { 928 numLayers--; 929 } 930 } 931 } 932 } 933 return getLayerIterator(id, numLayers); 934} 935 936void HWComposer::dump(String8& result, char* buffer, size_t SIZE) const { 937 if (mHwc) { 938 result.appendFormat("Hardware Composer state (version %8x):\n", hwcApiVersion(mHwc)); 939 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync); 940 for (size_t i=0 ; i<mNumDisplays ; i++) { 941 const DisplayData& disp(mDisplayData[i]); 942 943 const Vector< sp<Layer> >& visibleLayersSortedByZ = 944 mFlinger->getLayerSortedByZForHwcDisplay(i); 945 946 if (disp.connected) { 947 result.appendFormat( 948 " Display[%d] : %ux%u, xdpi=%f, ydpi=%f, refresh=%lld\n", 949 i, disp.width, disp.height, disp.xdpi, disp.ydpi, disp.refresh); 950 } 951 952 if (disp.list && disp.connected) { 953 result.appendFormat( 954 " numHwLayers=%u, flags=%08x\n", 955 disp.list->numHwLayers, disp.list->flags); 956 957 result.append( 958 " type | handle | hints | flags | tr | blend | format | source crop | frame name \n" 959 "------------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n"); 960 // " __________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____] 961 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 962 const hwc_layer_1_t&l = disp.list->hwLayers[i]; 963 int32_t format = -1; 964 String8 name("unknown"); 965 966 if (i < visibleLayersSortedByZ.size()) { 967 const sp<Layer>& layer(visibleLayersSortedByZ[i]); 968 const sp<GraphicBuffer>& buffer( 969 layer->getActiveBuffer()); 970 if (buffer != NULL) { 971 format = buffer->getPixelFormat(); 972 } 973 name = layer->getName(); 974 } 975 976 int type = l.compositionType; 977 if (type == HWC_FRAMEBUFFER_TARGET) { 978 name = "HWC_FRAMEBUFFER_TARGET"; 979 format = disp.format; 980 } 981 982 static char const* compositionTypeName[] = { 983 "GLES", 984 "HWC", 985 "BACKGROUND", 986 "FB TARGET", 987 "UNKNOWN"}; 988 if (type >= NELEM(compositionTypeName)) 989 type = NELEM(compositionTypeName) - 1; 990 991 result.appendFormat( 992 " %10s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n", 993 compositionTypeName[type], 994 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format, 995 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, 996 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, 997 name.string()); 998 } 999 } 1000 } 1001 } 1002 1003 if (mHwc && mHwc->dump) { 1004 mHwc->dump(mHwc, buffer, SIZE); 1005 result.append(buffer); 1006 } 1007} 1008 1009// --------------------------------------------------------------------------- 1010 1011HWComposer::VSyncThread::VSyncThread(HWComposer& hwc) 1012 : mHwc(hwc), mEnabled(false), 1013 mNextFakeVSync(0), 1014 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY)) 1015{ 1016} 1017 1018void HWComposer::VSyncThread::setEnabled(bool enabled) { 1019 Mutex::Autolock _l(mLock); 1020 if (mEnabled != enabled) { 1021 mEnabled = enabled; 1022 mCondition.signal(); 1023 } 1024} 1025 1026void HWComposer::VSyncThread::onFirstRef() { 1027 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE); 1028} 1029 1030bool HWComposer::VSyncThread::threadLoop() { 1031 { // scope for lock 1032 Mutex::Autolock _l(mLock); 1033 while (!mEnabled) { 1034 mCondition.wait(mLock); 1035 } 1036 } 1037 1038 const nsecs_t period = mRefreshPeriod; 1039 const nsecs_t now = systemTime(CLOCK_MONOTONIC); 1040 nsecs_t next_vsync = mNextFakeVSync; 1041 nsecs_t sleep = next_vsync - now; 1042 if (sleep < 0) { 1043 // we missed, find where the next vsync should be 1044 sleep = (period - ((now - next_vsync) % period)); 1045 next_vsync = now + sleep; 1046 } 1047 mNextFakeVSync = next_vsync + period; 1048 1049 struct timespec spec; 1050 spec.tv_sec = next_vsync / 1000000000; 1051 spec.tv_nsec = next_vsync % 1000000000; 1052 1053 int err; 1054 do { 1055 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL); 1056 } while (err<0 && errno == EINTR); 1057 1058 if (err == 0) { 1059 mHwc.mEventHandler.onVSyncReceived(0, next_vsync); 1060 } 1061 1062 return true; 1063} 1064 1065HWComposer::DisplayData::DisplayData() 1066: width(0), height(0), format(0), 1067 xdpi(0.0f), ydpi(0.0f), 1068 refresh(0), 1069 connected(false), 1070 hasFbComp(false), hasOvComp(false), 1071 capacity(0), list(NULL), 1072 framebufferTarget(NULL), fbTargetHandle(0), 1073 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE), 1074 events(0) 1075{} 1076 1077HWComposer::DisplayData::~DisplayData() { 1078 free(list); 1079} 1080 1081// --------------------------------------------------------------------------- 1082}; // namespace android 1083