HWComposer.cpp revision 13127d8921356dff794250e04208c3ed60b3a3df
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 52static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) { 53 uint32_t hwcVersion = hwc->common.version; 54 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK; 55} 56 57static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) { 58 uint32_t hwcVersion = hwc->common.version; 59 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK; 60} 61 62static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc, 63 uint32_t version) { 64 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK); 65} 66 67// --------------------------------------------------------------------------- 68 69struct HWComposer::cb_context { 70 struct callbacks : public hwc_procs_t { 71 // these are here to facilitate the transition when adding 72 // new callbacks (an implementation can check for NULL before 73 // calling a new callback). 74 void (*zero[4])(void); 75 }; 76 callbacks procs; 77 HWComposer* hwc; 78}; 79 80// --------------------------------------------------------------------------- 81 82HWComposer::HWComposer( 83 const sp<SurfaceFlinger>& flinger, 84 EventHandler& handler) 85 : mFlinger(flinger), 86 mFbDev(0), mHwc(0), mNumDisplays(1), 87 mCBContext(new cb_context), 88 mEventHandler(handler), 89 mVSyncCount(0), mDebugForceFakeVSync(false) 90{ 91 for (size_t i =0 ; i<MAX_DISPLAYS ; i++) { 92 mLists[i] = 0; 93 } 94 95 char value[PROPERTY_VALUE_MAX]; 96 property_get("debug.sf.no_hw_vsync", value, "0"); 97 mDebugForceFakeVSync = atoi(value); 98 99 bool needVSyncThread = true; 100 101 // Note: some devices may insist that the FB HAL be opened before HWC. 102 loadFbHalModule(); 103 loadHwcModule(); 104 105 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 106 // close FB HAL if we don't needed it. 107 // FIXME: this is temporary until we're not forced to open FB HAL 108 // before HWC. 109 framebuffer_close(mFbDev); 110 mFbDev = NULL; 111 } 112 113 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory. 114 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 115 && !mFbDev) { 116 ALOGE("ERROR: failed to open framebuffer, aborting"); 117 abort(); 118 } 119 120 // these display IDs are always reserved 121 for (size_t i=0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) { 122 mAllocatedDisplayIDs.markBit(i); 123 } 124 125 if (mHwc) { 126 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER, 127 (hwcApiVersion(mHwc) >> 24) & 0xff, 128 (hwcApiVersion(mHwc) >> 16) & 0xff); 129 if (mHwc->registerProcs) { 130 mCBContext->hwc = this; 131 mCBContext->procs.invalidate = &hook_invalidate; 132 mCBContext->procs.vsync = &hook_vsync; 133 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 134 mCBContext->procs.hotplug = &hook_hotplug; 135 else 136 mCBContext->procs.hotplug = NULL; 137 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero)); 138 mHwc->registerProcs(mHwc, &mCBContext->procs); 139 } 140 141 // don't need a vsync thread if we have a hardware composer 142 needVSyncThread = false; 143 // always turn vsync off when we start 144 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 145 146 // the number of displays we actually have depends on the 147 // hw composer version 148 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 149 // 1.2 adds support for virtual displays 150 mNumDisplays = MAX_DISPLAYS; 151 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 152 // 1.1 adds support for multiple displays 153 mNumDisplays = HWC_NUM_DISPLAY_TYPES; 154 } else { 155 mNumDisplays = 1; 156 } 157 } 158 159 if (mFbDev) { 160 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)), 161 "should only have fbdev if no hwc or hwc is 1.0"); 162 163 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]); 164 disp.connected = true; 165 disp.width = mFbDev->width; 166 disp.height = mFbDev->height; 167 disp.format = mFbDev->format; 168 disp.xdpi = mFbDev->xdpi; 169 disp.ydpi = mFbDev->ydpi; 170 if (disp.refresh == 0) { 171 disp.refresh = nsecs_t(1e9 / mFbDev->fps); 172 ALOGW("getting VSYNC period from fb HAL: %lld", disp.refresh); 173 } 174 if (disp.refresh == 0) { 175 disp.refresh = nsecs_t(1e9 / 60.0); 176 ALOGW("getting VSYNC period from thin air: %lld", 177 mDisplayData[HWC_DISPLAY_PRIMARY].refresh); 178 } 179 } else if (mHwc) { 180 // here we're guaranteed to have at least HWC 1.1 181 for (size_t i =0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) { 182 queryDisplayProperties(i); 183 } 184 } 185 186 if (needVSyncThread) { 187 // we don't have VSYNC support, we need to fake it 188 mVSyncThread = new VSyncThread(*this); 189 } 190} 191 192HWComposer::~HWComposer() { 193 if (mHwc) { 194 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 195 } 196 if (mVSyncThread != NULL) { 197 mVSyncThread->requestExitAndWait(); 198 } 199 if (mHwc) { 200 hwc_close_1(mHwc); 201 } 202 if (mFbDev) { 203 framebuffer_close(mFbDev); 204 } 205 delete mCBContext; 206} 207 208// Load and prepare the hardware composer module. Sets mHwc. 209void HWComposer::loadHwcModule() 210{ 211 hw_module_t const* module; 212 213 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) { 214 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID); 215 return; 216 } 217 218 int err = hwc_open_1(module, &mHwc); 219 if (err) { 220 ALOGE("%s device failed to initialize (%s)", 221 HWC_HARDWARE_COMPOSER, strerror(-err)); 222 return; 223 } 224 225 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) || 226 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION || 227 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) { 228 ALOGE("%s device version %#x unsupported, will not be used", 229 HWC_HARDWARE_COMPOSER, mHwc->common.version); 230 hwc_close_1(mHwc); 231 mHwc = NULL; 232 return; 233 } 234} 235 236// Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev. 237void HWComposer::loadFbHalModule() 238{ 239 hw_module_t const* module; 240 241 if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) != 0) { 242 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID); 243 return; 244 } 245 246 int err = framebuffer_open(module, &mFbDev); 247 if (err) { 248 ALOGE("framebuffer_open failed (%s)", strerror(-err)); 249 return; 250 } 251} 252 253status_t HWComposer::initCheck() const { 254 return mHwc ? NO_ERROR : NO_INIT; 255} 256 257void HWComposer::hook_invalidate(const struct hwc_procs* procs) { 258 cb_context* ctx = reinterpret_cast<cb_context*>( 259 const_cast<hwc_procs_t*>(procs)); 260 ctx->hwc->invalidate(); 261} 262 263void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp, 264 int64_t timestamp) { 265 cb_context* ctx = reinterpret_cast<cb_context*>( 266 const_cast<hwc_procs_t*>(procs)); 267 ctx->hwc->vsync(disp, timestamp); 268} 269 270void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp, 271 int connected) { 272 cb_context* ctx = reinterpret_cast<cb_context*>( 273 const_cast<hwc_procs_t*>(procs)); 274 ctx->hwc->hotplug(disp, connected); 275} 276 277void HWComposer::invalidate() { 278 mFlinger->repaintEverything(); 279} 280 281void HWComposer::vsync(int disp, int64_t timestamp) { 282 ATRACE_INT("VSYNC", ++mVSyncCount&1); 283 mEventHandler.onVSyncReceived(disp, timestamp); 284 Mutex::Autolock _l(mLock); 285 mLastHwVSync = timestamp; 286} 287 288void HWComposer::hotplug(int disp, int connected) { 289 if (disp == HWC_DISPLAY_PRIMARY || disp >= HWC_NUM_DISPLAY_TYPES) { 290 ALOGE("hotplug event received for invalid display: disp=%d connected=%d", 291 disp, connected); 292 return; 293 } 294 queryDisplayProperties(disp); 295 mEventHandler.onHotplugReceived(disp, bool(connected)); 296} 297 298static const uint32_t DISPLAY_ATTRIBUTES[] = { 299 HWC_DISPLAY_VSYNC_PERIOD, 300 HWC_DISPLAY_WIDTH, 301 HWC_DISPLAY_HEIGHT, 302 HWC_DISPLAY_DPI_X, 303 HWC_DISPLAY_DPI_Y, 304 HWC_DISPLAY_NO_ATTRIBUTE, 305}; 306#define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0]) 307 308// http://developer.android.com/reference/android/util/DisplayMetrics.html 309#define ANDROID_DENSITY_TV 213 310#define ANDROID_DENSITY_XHIGH 320 311 312status_t HWComposer::queryDisplayProperties(int disp) { 313 314 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 315 316 // use zero as default value for unspecified attributes 317 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1]; 318 memset(values, 0, sizeof(values)); 319 320 uint32_t config; 321 size_t numConfigs = 1; 322 status_t err = mHwc->getDisplayConfigs(mHwc, disp, &config, &numConfigs); 323 if (err != NO_ERROR) { 324 // this can happen if an unpluggable display is not connected 325 mDisplayData[disp].connected = false; 326 return err; 327 } 328 329 err = mHwc->getDisplayAttributes(mHwc, disp, config, DISPLAY_ATTRIBUTES, values); 330 if (err != NO_ERROR) { 331 // we can't get this display's info. turn it off. 332 mDisplayData[disp].connected = false; 333 return err; 334 } 335 336 int32_t w = 0, h = 0; 337 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { 338 switch (DISPLAY_ATTRIBUTES[i]) { 339 case HWC_DISPLAY_VSYNC_PERIOD: 340 mDisplayData[disp].refresh = nsecs_t(values[i]); 341 break; 342 case HWC_DISPLAY_WIDTH: 343 mDisplayData[disp].width = values[i]; 344 break; 345 case HWC_DISPLAY_HEIGHT: 346 mDisplayData[disp].height = values[i]; 347 break; 348 case HWC_DISPLAY_DPI_X: 349 mDisplayData[disp].xdpi = values[i] / 1000.0f; 350 break; 351 case HWC_DISPLAY_DPI_Y: 352 mDisplayData[disp].ydpi = values[i] / 1000.0f; 353 break; 354 default: 355 ALOG_ASSERT(false, "unknown display attribute[%d] %#x", 356 i, DISPLAY_ATTRIBUTES[i]); 357 break; 358 } 359 } 360 361 // FIXME: what should we set the format to? 362 mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888; 363 mDisplayData[disp].connected = true; 364 if (mDisplayData[disp].xdpi == 0.0f || mDisplayData[disp].ydpi == 0.0f) { 365 // is there anything smarter we can do? 366 if (h >= 1080) { 367 mDisplayData[disp].xdpi = ANDROID_DENSITY_XHIGH; 368 mDisplayData[disp].ydpi = ANDROID_DENSITY_XHIGH; 369 } else { 370 mDisplayData[disp].xdpi = ANDROID_DENSITY_TV; 371 mDisplayData[disp].ydpi = ANDROID_DENSITY_TV; 372 } 373 } 374 return NO_ERROR; 375} 376 377int32_t HWComposer::allocateDisplayId() { 378 if (mAllocatedDisplayIDs.count() >= mNumDisplays) { 379 return NO_MEMORY; 380 } 381 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit(); 382 mAllocatedDisplayIDs.markBit(id); 383 return id; 384} 385 386status_t HWComposer::freeDisplayId(int32_t id) { 387 if (id < HWC_NUM_DISPLAY_TYPES) { 388 // cannot free the reserved IDs 389 return BAD_VALUE; 390 } 391 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 392 return BAD_INDEX; 393 } 394 mAllocatedDisplayIDs.clearBit(id); 395 return NO_ERROR; 396} 397 398nsecs_t HWComposer::getRefreshPeriod(int disp) const { 399 return mDisplayData[disp].refresh; 400} 401 402nsecs_t HWComposer::getRefreshTimestamp(int disp) const { 403 // this returns the last refresh timestamp. 404 // if the last one is not available, we estimate it based on 405 // the refresh period and whatever closest timestamp we have. 406 Mutex::Autolock _l(mLock); 407 nsecs_t now = systemTime(CLOCK_MONOTONIC); 408 return now - ((now - mLastHwVSync) % mDisplayData[disp].refresh); 409} 410 411sp<Fence> HWComposer::getDisplayFence(int disp) const { 412 return mDisplayData[disp].lastDisplayFence; 413} 414 415 416uint32_t HWComposer::getWidth(int disp) const { 417 return mDisplayData[disp].width; 418} 419 420uint32_t HWComposer::getHeight(int disp) const { 421 return mDisplayData[disp].height; 422} 423 424uint32_t HWComposer::getFormat(int disp) const { 425 return mDisplayData[disp].format; 426} 427 428float HWComposer::getDpiX(int disp) const { 429 return mDisplayData[disp].xdpi; 430} 431 432float HWComposer::getDpiY(int disp) const { 433 return mDisplayData[disp].ydpi; 434} 435 436bool HWComposer::isConnected(int disp) const { 437 return mDisplayData[disp].connected; 438} 439 440void HWComposer::eventControl(int disp, int event, int enabled) { 441 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) { 442 ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)", 443 event, disp, enabled); 444 return; 445 } 446 if (event != EVENT_VSYNC) { 447 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)", 448 event, disp, enabled); 449 return; 450 } 451 status_t err = NO_ERROR; 452 if (mHwc && !mDebugForceFakeVSync) { 453 // NOTE: we use our own internal lock here because we have to call 454 // into the HWC with the lock held, and we want to make sure 455 // that even if HWC blocks (which it shouldn't), it won't 456 // affect other threads. 457 Mutex::Autolock _l(mEventControlLock); 458 const int32_t eventBit = 1UL << event; 459 const int32_t newValue = enabled ? eventBit : 0; 460 const int32_t oldValue = mDisplayData[disp].events & eventBit; 461 if (newValue != oldValue) { 462 ATRACE_CALL(); 463 err = mHwc->eventControl(mHwc, disp, event, enabled); 464 if (!err) { 465 int32_t& events(mDisplayData[disp].events); 466 events = (events & ~eventBit) | newValue; 467 } 468 } 469 // error here should not happen -- not sure what we should 470 // do if it does. 471 ALOGE_IF(err, "eventControl(%d, %d) failed %s", 472 event, enabled, strerror(-err)); 473 } 474 475 if (err == NO_ERROR && mVSyncThread != NULL) { 476 mVSyncThread->setEnabled(enabled); 477 } 478} 479 480status_t HWComposer::createWorkList(int32_t id, size_t numLayers) { 481 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 482 return BAD_INDEX; 483 } 484 485 if (mHwc) { 486 DisplayData& disp(mDisplayData[id]); 487 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 488 // we need space for the HWC_FRAMEBUFFER_TARGET 489 numLayers++; 490 } 491 if (disp.capacity < numLayers || disp.list == NULL) { 492 size_t size = sizeof(hwc_display_contents_1_t) 493 + numLayers * sizeof(hwc_layer_1_t); 494 free(disp.list); 495 disp.list = (hwc_display_contents_1_t*)malloc(size); 496 disp.capacity = numLayers; 497 } 498 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 499 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1]; 500 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t)); 501 const hwc_rect_t r = { 0, 0, (int) disp.width, (int) disp.height }; 502 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 503 disp.framebufferTarget->hints = 0; 504 disp.framebufferTarget->flags = 0; 505 disp.framebufferTarget->handle = disp.fbTargetHandle; 506 disp.framebufferTarget->transform = 0; 507 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT; 508 disp.framebufferTarget->sourceCrop = r; 509 disp.framebufferTarget->displayFrame = r; 510 disp.framebufferTarget->visibleRegionScreen.numRects = 1; 511 disp.framebufferTarget->visibleRegionScreen.rects = 512 &disp.framebufferTarget->displayFrame; 513 disp.framebufferTarget->acquireFenceFd = -1; 514 disp.framebufferTarget->releaseFenceFd = -1; 515 } 516 disp.list->retireFenceFd = -1; 517 disp.list->flags = HWC_GEOMETRY_CHANGED; 518 disp.list->numHwLayers = numLayers; 519 } 520 return NO_ERROR; 521} 522 523status_t HWComposer::setFramebufferTarget(int32_t id, 524 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) { 525 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 526 return BAD_INDEX; 527 } 528 DisplayData& disp(mDisplayData[id]); 529 if (!disp.framebufferTarget) { 530 // this should never happen, but apparently eglCreateWindowSurface() 531 // triggers a Surface::queueBuffer() on some 532 // devices (!?) -- log and ignore. 533 ALOGE("HWComposer: framebufferTarget is null"); 534// CallStack stack; 535// stack.update(); 536// stack.dump(""); 537 return NO_ERROR; 538 } 539 540 int acquireFenceFd = -1; 541 if (acquireFence->isValid()) { 542 acquireFenceFd = acquireFence->dup(); 543 } 544 545 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd); 546 disp.fbTargetHandle = buf->handle; 547 disp.framebufferTarget->handle = disp.fbTargetHandle; 548 disp.framebufferTarget->acquireFenceFd = acquireFenceFd; 549 return NO_ERROR; 550} 551 552status_t HWComposer::prepare() { 553 for (size_t i=0 ; i<mNumDisplays ; i++) { 554 DisplayData& disp(mDisplayData[i]); 555 if (disp.framebufferTarget) { 556 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET 557 // DO NOT reset the handle field to NULL, because it's possible 558 // that we have nothing to redraw (eg: eglSwapBuffers() not called) 559 // in which case, we should continue to use the same buffer. 560 LOG_FATAL_IF(disp.list == NULL); 561 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 562 } 563 if (!disp.connected && disp.list != NULL) { 564 ALOGW("WARNING: disp %d: connected, non-null list, layers=%d", 565 i, disp.list->numHwLayers); 566 } 567 mLists[i] = disp.list; 568 if (mLists[i]) { 569 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 570 mLists[i]->outbuf = NULL; 571 mLists[i]->outbufAcquireFenceFd = -1; 572 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 573 // garbage data to catch improper use 574 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF; 575 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF; 576 } else { 577 mLists[i]->dpy = EGL_NO_DISPLAY; 578 mLists[i]->sur = EGL_NO_SURFACE; 579 } 580 } 581 } 582 583 int err = mHwc->prepare(mHwc, mNumDisplays, mLists); 584 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err)); 585 586 if (err == NO_ERROR) { 587 // here we're just making sure that "skip" layers are set 588 // to HWC_FRAMEBUFFER and we're also counting how many layers 589 // we have of each type. 590 for (size_t i=0 ; i<mNumDisplays ; i++) { 591 DisplayData& disp(mDisplayData[i]); 592 disp.hasFbComp = false; 593 disp.hasOvComp = false; 594 if (disp.list) { 595 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 596 hwc_layer_1_t& l = disp.list->hwLayers[i]; 597 598 //ALOGD("prepare: %d, type=%d, handle=%p", 599 // i, l.compositionType, l.handle); 600 601 if (l.flags & HWC_SKIP_LAYER) { 602 l.compositionType = HWC_FRAMEBUFFER; 603 } 604 if (l.compositionType == HWC_FRAMEBUFFER) { 605 disp.hasFbComp = true; 606 } 607 if (l.compositionType == HWC_OVERLAY) { 608 disp.hasOvComp = true; 609 } 610 } 611 } 612 } 613 } 614 return (status_t)err; 615} 616 617bool HWComposer::hasHwcComposition(int32_t id) const { 618 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 619 return false; 620 return mDisplayData[id].hasOvComp; 621} 622 623bool HWComposer::hasGlesComposition(int32_t id) const { 624 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 625 return false; 626 return mDisplayData[id].hasFbComp; 627} 628 629int HWComposer::getAndResetReleaseFenceFd(int32_t id) { 630 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 631 return BAD_INDEX; 632 633 int fd = INVALID_OPERATION; 634 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 635 const DisplayData& disp(mDisplayData[id]); 636 if (disp.framebufferTarget) { 637 fd = disp.framebufferTarget->releaseFenceFd; 638 disp.framebufferTarget->acquireFenceFd = -1; 639 disp.framebufferTarget->releaseFenceFd = -1; 640 } 641 } 642 return fd; 643} 644 645status_t HWComposer::commit() { 646 int err = NO_ERROR; 647 if (mHwc) { 648 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 649 // On version 1.0, the OpenGL ES target surface is communicated 650 // by the (dpy, sur) fields and we are guaranteed to have only 651 // a single display. 652 mLists[0]->dpy = eglGetCurrentDisplay(); 653 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW); 654 } 655 656 err = mHwc->set(mHwc, mNumDisplays, mLists); 657 658 for (size_t i=0 ; i<mNumDisplays ; i++) { 659 DisplayData& disp(mDisplayData[i]); 660 disp.lastDisplayFence = disp.lastRetireFence; 661 disp.lastRetireFence = Fence::NO_FENCE; 662 if (disp.list) { 663 if (disp.list->retireFenceFd != -1) { 664 disp.lastRetireFence = new Fence(disp.list->retireFenceFd); 665 disp.list->retireFenceFd = -1; 666 } 667 disp.list->flags &= ~HWC_GEOMETRY_CHANGED; 668 } 669 } 670 } 671 return (status_t)err; 672} 673 674status_t HWComposer::release(int disp) { 675 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES); 676 if (mHwc) { 677 eventControl(disp, HWC_EVENT_VSYNC, 0); 678 return (status_t)mHwc->blank(mHwc, disp, 1); 679 } 680 return NO_ERROR; 681} 682 683status_t HWComposer::acquire(int disp) { 684 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES); 685 if (mHwc) { 686 return (status_t)mHwc->blank(mHwc, disp, 0); 687 } 688 return NO_ERROR; 689} 690 691void HWComposer::disconnectDisplay(int disp) { 692 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY); 693 if (disp >= HWC_NUM_DISPLAY_TYPES) { 694 // nothing to do for these yet 695 return; 696 } 697 DisplayData& dd(mDisplayData[disp]); 698 if (dd.list != NULL) { 699 free(dd.list); 700 dd.list = NULL; 701 dd.framebufferTarget = NULL; // points into dd.list 702 dd.fbTargetHandle = NULL; 703 } 704} 705 706int HWComposer::getVisualID() const { 707 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 708 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 709 // is supported by the implementation. we can only be in this case 710 // if we have HWC 1.1 711 return HAL_PIXEL_FORMAT_RGBA_8888; 712 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 713 } else { 714 return mFbDev->format; 715 } 716} 717 718bool HWComposer::supportsFramebufferTarget() const { 719 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 720} 721 722int HWComposer::fbPost(int32_t id, 723 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 724 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 725 return setFramebufferTarget(id, acquireFence, buffer); 726 } else { 727 acquireFence->waitForever(1000, "HWComposer::fbPost"); 728 return mFbDev->post(mFbDev, buffer->handle); 729 } 730} 731 732int HWComposer::fbCompositionComplete() { 733 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 734 return NO_ERROR; 735 736 if (mFbDev->compositionComplete) { 737 return mFbDev->compositionComplete(mFbDev); 738 } else { 739 return INVALID_OPERATION; 740 } 741} 742 743void HWComposer::fbDump(String8& result) { 744 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) { 745 const size_t SIZE = 4096; 746 char buffer[SIZE]; 747 mFbDev->dump(mFbDev, buffer, SIZE); 748 result.append(buffer); 749 } 750} 751 752/* 753 * Helper template to implement a concrete HWCLayer 754 * This holds the pointer to the concrete hwc layer type 755 * and implements the "iterable" side of HWCLayer. 756 */ 757template<typename CONCRETE, typename HWCTYPE> 758class Iterable : public HWComposer::HWCLayer { 759protected: 760 HWCTYPE* const mLayerList; 761 HWCTYPE* mCurrentLayer; 762 Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { } 763 inline HWCTYPE const * getLayer() const { return mCurrentLayer; } 764 inline HWCTYPE* getLayer() { return mCurrentLayer; } 765 virtual ~Iterable() { } 766private: 767 // returns a copy of ourselves 768 virtual HWComposer::HWCLayer* dup() { 769 return new CONCRETE( static_cast<const CONCRETE&>(*this) ); 770 } 771 virtual status_t setLayer(size_t index) { 772 mCurrentLayer = &mLayerList[index]; 773 return NO_ERROR; 774 } 775}; 776 777/* 778 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0. 779 * This implements the HWCLayer side of HWCIterableLayer. 780 */ 781class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> { 782 struct hwc_composer_device_1* mHwc; 783public: 784 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer) 785 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { } 786 787 virtual int32_t getCompositionType() const { 788 return getLayer()->compositionType; 789 } 790 virtual uint32_t getHints() const { 791 return getLayer()->hints; 792 } 793 virtual int getAndResetReleaseFenceFd() { 794 int fd = getLayer()->releaseFenceFd; 795 getLayer()->releaseFenceFd = -1; 796 return fd; 797 } 798 virtual void setAcquireFenceFd(int fenceFd) { 799 getLayer()->acquireFenceFd = fenceFd; 800 } 801 virtual void setPerFrameDefaultState() { 802 //getLayer()->compositionType = HWC_FRAMEBUFFER; 803 } 804 virtual void setPlaneAlpha(uint8_t alpha) { 805 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 806 getLayer()->planeAlpha = alpha; 807 } else { 808 if (alpha < 0xFF) { 809 getLayer()->flags |= HWC_SKIP_LAYER; 810 } 811 } 812 } 813 virtual void setDefaultState() { 814 hwc_layer_1_t* const l = getLayer(); 815 l->compositionType = HWC_FRAMEBUFFER; 816 l->hints = 0; 817 l->flags = HWC_SKIP_LAYER; 818 l->handle = 0; 819 l->transform = 0; 820 l->blending = HWC_BLENDING_NONE; 821 l->visibleRegionScreen.numRects = 0; 822 l->visibleRegionScreen.rects = NULL; 823 l->acquireFenceFd = -1; 824 l->releaseFenceFd = -1; 825 l->planeAlpha = 0xFF; 826 } 827 virtual void setSkip(bool skip) { 828 if (skip) { 829 getLayer()->flags |= HWC_SKIP_LAYER; 830 } else { 831 getLayer()->flags &= ~HWC_SKIP_LAYER; 832 } 833 } 834 virtual void setBlending(uint32_t blending) { 835 getLayer()->blending = blending; 836 } 837 virtual void setTransform(uint32_t transform) { 838 getLayer()->transform = transform; 839 } 840 virtual void setFrame(const Rect& frame) { 841 reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame; 842 } 843 virtual void setCrop(const Rect& crop) { 844 reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop; 845 } 846 virtual void setVisibleRegionScreen(const Region& reg) { 847 // Region::getSharedBuffer creates a reference to the underlying 848 // SharedBuffer of this Region, this reference is freed 849 // in onDisplayed() 850 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 851 SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects); 852 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data()); 853 } 854 virtual void setBuffer(const sp<GraphicBuffer>& buffer) { 855 if (buffer == 0 || buffer->handle == 0) { 856 getLayer()->compositionType = HWC_FRAMEBUFFER; 857 getLayer()->flags |= HWC_SKIP_LAYER; 858 getLayer()->handle = 0; 859 } else { 860 getLayer()->handle = buffer->handle; 861 } 862 } 863 virtual void onDisplayed() { 864 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 865 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects); 866 if (sb) { 867 sb->release(); 868 // not technically needed but safer 869 visibleRegion.numRects = 0; 870 visibleRegion.rects = NULL; 871 } 872 873 getLayer()->acquireFenceFd = -1; 874 } 875}; 876 877/* 878 * returns an iterator initialized at a given index in the layer list 879 */ 880HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) { 881 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 882 return LayerListIterator(); 883 } 884 const DisplayData& disp(mDisplayData[id]); 885 if (!mHwc || !disp.list || index > disp.list->numHwLayers) { 886 return LayerListIterator(); 887 } 888 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers), index); 889} 890 891/* 892 * returns an iterator on the beginning of the layer list 893 */ 894HWComposer::LayerListIterator HWComposer::begin(int32_t id) { 895 return getLayerIterator(id, 0); 896} 897 898/* 899 * returns an iterator on the end of the layer list 900 */ 901HWComposer::LayerListIterator HWComposer::end(int32_t id) { 902 size_t numLayers = 0; 903 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) { 904 const DisplayData& disp(mDisplayData[id]); 905 if (mHwc && disp.list) { 906 numLayers = disp.list->numHwLayers; 907 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 908 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET, 909 // which we ignore when iterating through the layer list. 910 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id); 911 if (numLayers) { 912 numLayers--; 913 } 914 } 915 } 916 } 917 return getLayerIterator(id, numLayers); 918} 919 920void HWComposer::dump(String8& result, char* buffer, size_t SIZE) const { 921 if (mHwc) { 922 result.appendFormat("Hardware Composer state (version %8x):\n", hwcApiVersion(mHwc)); 923 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync); 924 for (size_t i=0 ; i<mNumDisplays ; i++) { 925 const DisplayData& disp(mDisplayData[i]); 926 927 const Vector< sp<Layer> >& visibleLayersSortedByZ = 928 mFlinger->getLayerSortedByZForHwcDisplay(i); 929 930 if (disp.connected) { 931 result.appendFormat( 932 " Display[%d] : %ux%u, xdpi=%f, ydpi=%f, refresh=%lld\n", 933 i, disp.width, disp.height, disp.xdpi, disp.ydpi, disp.refresh); 934 } 935 936 if (disp.list && disp.connected) { 937 result.appendFormat( 938 " numHwLayers=%u, flags=%08x\n", 939 disp.list->numHwLayers, disp.list->flags); 940 941 result.append( 942 " type | handle | hints | flags | tr | blend | format | source crop | frame name \n" 943 "------------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n"); 944 // " __________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____] 945 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 946 const hwc_layer_1_t&l = disp.list->hwLayers[i]; 947 int32_t format = -1; 948 String8 name("unknown"); 949 950 if (i < visibleLayersSortedByZ.size()) { 951 const sp<Layer>& layer(visibleLayersSortedByZ[i]); 952 const sp<GraphicBuffer>& buffer( 953 layer->getActiveBuffer()); 954 if (buffer != NULL) { 955 format = buffer->getPixelFormat(); 956 } 957 name = layer->getName(); 958 } 959 960 int type = l.compositionType; 961 if (type == HWC_FRAMEBUFFER_TARGET) { 962 name = "HWC_FRAMEBUFFER_TARGET"; 963 format = disp.format; 964 } 965 966 static char const* compositionTypeName[] = { 967 "GLES", 968 "HWC", 969 "BACKGROUND", 970 "FB TARGET", 971 "UNKNOWN"}; 972 if (type >= NELEM(compositionTypeName)) 973 type = NELEM(compositionTypeName) - 1; 974 975 result.appendFormat( 976 " %10s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n", 977 compositionTypeName[type], 978 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format, 979 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, 980 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, 981 name.string()); 982 } 983 } 984 } 985 } 986 987 if (mHwc && mHwc->dump) { 988 mHwc->dump(mHwc, buffer, SIZE); 989 result.append(buffer); 990 } 991} 992 993// --------------------------------------------------------------------------- 994 995HWComposer::VSyncThread::VSyncThread(HWComposer& hwc) 996 : mHwc(hwc), mEnabled(false), 997 mNextFakeVSync(0), 998 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY)) 999{ 1000} 1001 1002void HWComposer::VSyncThread::setEnabled(bool enabled) { 1003 Mutex::Autolock _l(mLock); 1004 if (mEnabled != enabled) { 1005 mEnabled = enabled; 1006 mCondition.signal(); 1007 } 1008} 1009 1010void HWComposer::VSyncThread::onFirstRef() { 1011 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE); 1012} 1013 1014bool HWComposer::VSyncThread::threadLoop() { 1015 { // scope for lock 1016 Mutex::Autolock _l(mLock); 1017 while (!mEnabled) { 1018 mCondition.wait(mLock); 1019 } 1020 } 1021 1022 const nsecs_t period = mRefreshPeriod; 1023 const nsecs_t now = systemTime(CLOCK_MONOTONIC); 1024 nsecs_t next_vsync = mNextFakeVSync; 1025 nsecs_t sleep = next_vsync - now; 1026 if (sleep < 0) { 1027 // we missed, find where the next vsync should be 1028 sleep = (period - ((now - next_vsync) % period)); 1029 next_vsync = now + sleep; 1030 } 1031 mNextFakeVSync = next_vsync + period; 1032 1033 struct timespec spec; 1034 spec.tv_sec = next_vsync / 1000000000; 1035 spec.tv_nsec = next_vsync % 1000000000; 1036 1037 int err; 1038 do { 1039 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL); 1040 } while (err<0 && errno == EINTR); 1041 1042 if (err == 0) { 1043 mHwc.mEventHandler.onVSyncReceived(0, next_vsync); 1044 } 1045 1046 return true; 1047} 1048 1049HWComposer::DisplayData::DisplayData() 1050: width(0), height(0), format(0), 1051 xdpi(0.0f), ydpi(0.0f), 1052 refresh(0), 1053 connected(false), 1054 hasFbComp(false), hasOvComp(false), 1055 capacity(0), list(NULL), 1056 framebufferTarget(NULL), fbTargetHandle(0), 1057 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE), 1058 events(0) 1059{} 1060 1061HWComposer::DisplayData::~DisplayData() { 1062 free(list); 1063} 1064 1065// --------------------------------------------------------------------------- 1066}; // namespace android 1067