HWComposer.cpp revision 70a6e88dbd52605f35f290eba52a05bdc6fc8042
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 int fberr = 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 (%s), aborting", 117 strerror(-fberr)); 118 abort(); 119 } 120 121 // these display IDs are always reserved 122 for (size_t i=0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) { 123 mAllocatedDisplayIDs.markBit(i); 124 } 125 126 if (mHwc) { 127 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER, 128 (hwcApiVersion(mHwc) >> 24) & 0xff, 129 (hwcApiVersion(mHwc) >> 16) & 0xff); 130 if (mHwc->registerProcs) { 131 mCBContext->hwc = this; 132 mCBContext->procs.invalidate = &hook_invalidate; 133 mCBContext->procs.vsync = &hook_vsync; 134 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 135 mCBContext->procs.hotplug = &hook_hotplug; 136 else 137 mCBContext->procs.hotplug = NULL; 138 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero)); 139 mHwc->registerProcs(mHwc, &mCBContext->procs); 140 } 141 142 // don't need a vsync thread if we have a hardware composer 143 needVSyncThread = false; 144 // always turn vsync off when we start 145 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 146 147 // the number of displays we actually have depends on the 148 // hw composer version 149 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 150 // 1.2 adds support for virtual displays 151 mNumDisplays = MAX_DISPLAYS; 152 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 153 // 1.1 adds support for multiple displays 154 mNumDisplays = HWC_NUM_DISPLAY_TYPES; 155 } else { 156 mNumDisplays = 1; 157 } 158 } 159 160 if (mFbDev) { 161 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)), 162 "should only have fbdev if no hwc or hwc is 1.0"); 163 164 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]); 165 disp.connected = true; 166 disp.width = mFbDev->width; 167 disp.height = mFbDev->height; 168 disp.format = mFbDev->format; 169 disp.xdpi = mFbDev->xdpi; 170 disp.ydpi = mFbDev->ydpi; 171 if (disp.refresh == 0) { 172 disp.refresh = nsecs_t(1e9 / mFbDev->fps); 173 ALOGW("getting VSYNC period from fb HAL: %lld", disp.refresh); 174 } 175 if (disp.refresh == 0) { 176 disp.refresh = nsecs_t(1e9 / 60.0); 177 ALOGW("getting VSYNC period from thin air: %lld", 178 mDisplayData[HWC_DISPLAY_PRIMARY].refresh); 179 } 180 } else if (mHwc) { 181 // here we're guaranteed to have at least HWC 1.1 182 for (size_t i =0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) { 183 queryDisplayProperties(i); 184 } 185 } 186 187 if (needVSyncThread) { 188 // we don't have VSYNC support, we need to fake it 189 mVSyncThread = new VSyncThread(*this); 190 } 191} 192 193HWComposer::~HWComposer() { 194 if (mHwc) { 195 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 196 } 197 if (mVSyncThread != NULL) { 198 mVSyncThread->requestExitAndWait(); 199 } 200 if (mHwc) { 201 hwc_close_1(mHwc); 202 } 203 if (mFbDev) { 204 framebuffer_close(mFbDev); 205 } 206 delete mCBContext; 207} 208 209// Load and prepare the hardware composer module. Sets mHwc. 210void HWComposer::loadHwcModule() 211{ 212 hw_module_t const* module; 213 214 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) { 215 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID); 216 return; 217 } 218 219 int err = hwc_open_1(module, &mHwc); 220 if (err) { 221 ALOGE("%s device failed to initialize (%s)", 222 HWC_HARDWARE_COMPOSER, strerror(-err)); 223 return; 224 } 225 226 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) || 227 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION || 228 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) { 229 ALOGE("%s device version %#x unsupported, will not be used", 230 HWC_HARDWARE_COMPOSER, mHwc->common.version); 231 hwc_close_1(mHwc); 232 mHwc = NULL; 233 return; 234 } 235} 236 237// Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev. 238int HWComposer::loadFbHalModule() 239{ 240 hw_module_t const* module; 241 242 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module); 243 if (err != 0) { 244 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID); 245 return err; 246 } 247 248 return framebuffer_open(module, &mFbDev); 249} 250 251status_t HWComposer::initCheck() const { 252 return mHwc ? NO_ERROR : NO_INIT; 253} 254 255void HWComposer::hook_invalidate(const struct hwc_procs* procs) { 256 cb_context* ctx = reinterpret_cast<cb_context*>( 257 const_cast<hwc_procs_t*>(procs)); 258 ctx->hwc->invalidate(); 259} 260 261void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp, 262 int64_t timestamp) { 263 cb_context* ctx = reinterpret_cast<cb_context*>( 264 const_cast<hwc_procs_t*>(procs)); 265 ctx->hwc->vsync(disp, timestamp); 266} 267 268void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp, 269 int connected) { 270 cb_context* ctx = reinterpret_cast<cb_context*>( 271 const_cast<hwc_procs_t*>(procs)); 272 ctx->hwc->hotplug(disp, connected); 273} 274 275void HWComposer::invalidate() { 276 mFlinger->repaintEverything(); 277} 278 279void HWComposer::vsync(int disp, int64_t timestamp) { 280 ATRACE_INT("VSYNC", ++mVSyncCount&1); 281 mEventHandler.onVSyncReceived(disp, timestamp); 282 Mutex::Autolock _l(mLock); 283 mLastHwVSync = timestamp; 284} 285 286void HWComposer::hotplug(int disp, int connected) { 287 if (disp == HWC_DISPLAY_PRIMARY || disp >= HWC_NUM_DISPLAY_TYPES) { 288 ALOGE("hotplug event received for invalid display: disp=%d connected=%d", 289 disp, connected); 290 return; 291 } 292 queryDisplayProperties(disp); 293 mEventHandler.onHotplugReceived(disp, bool(connected)); 294} 295 296static const uint32_t DISPLAY_ATTRIBUTES[] = { 297 HWC_DISPLAY_VSYNC_PERIOD, 298 HWC_DISPLAY_WIDTH, 299 HWC_DISPLAY_HEIGHT, 300 HWC_DISPLAY_DPI_X, 301 HWC_DISPLAY_DPI_Y, 302 HWC_DISPLAY_NO_ATTRIBUTE, 303}; 304#define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0]) 305 306// http://developer.android.com/reference/android/util/DisplayMetrics.html 307#define ANDROID_DENSITY_TV 213 308#define ANDROID_DENSITY_XHIGH 320 309 310status_t HWComposer::queryDisplayProperties(int disp) { 311 312 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 313 314 // use zero as default value for unspecified attributes 315 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1]; 316 memset(values, 0, sizeof(values)); 317 318 uint32_t config; 319 size_t numConfigs = 1; 320 status_t err = mHwc->getDisplayConfigs(mHwc, disp, &config, &numConfigs); 321 if (err != NO_ERROR) { 322 // this can happen if an unpluggable display is not connected 323 mDisplayData[disp].connected = false; 324 return err; 325 } 326 327 err = mHwc->getDisplayAttributes(mHwc, disp, config, DISPLAY_ATTRIBUTES, values); 328 if (err != NO_ERROR) { 329 // we can't get this display's info. turn it off. 330 mDisplayData[disp].connected = false; 331 return err; 332 } 333 334 int32_t w = 0, h = 0; 335 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { 336 switch (DISPLAY_ATTRIBUTES[i]) { 337 case HWC_DISPLAY_VSYNC_PERIOD: 338 mDisplayData[disp].refresh = nsecs_t(values[i]); 339 break; 340 case HWC_DISPLAY_WIDTH: 341 mDisplayData[disp].width = values[i]; 342 break; 343 case HWC_DISPLAY_HEIGHT: 344 mDisplayData[disp].height = values[i]; 345 break; 346 case HWC_DISPLAY_DPI_X: 347 mDisplayData[disp].xdpi = values[i] / 1000.0f; 348 break; 349 case HWC_DISPLAY_DPI_Y: 350 mDisplayData[disp].ydpi = values[i] / 1000.0f; 351 break; 352 default: 353 ALOG_ASSERT(false, "unknown display attribute[%d] %#x", 354 i, DISPLAY_ATTRIBUTES[i]); 355 break; 356 } 357 } 358 359 // FIXME: what should we set the format to? 360 mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888; 361 mDisplayData[disp].connected = true; 362 if (mDisplayData[disp].xdpi == 0.0f || mDisplayData[disp].ydpi == 0.0f) { 363 // is there anything smarter we can do? 364 if (h >= 1080) { 365 mDisplayData[disp].xdpi = ANDROID_DENSITY_XHIGH; 366 mDisplayData[disp].ydpi = ANDROID_DENSITY_XHIGH; 367 } else { 368 mDisplayData[disp].xdpi = ANDROID_DENSITY_TV; 369 mDisplayData[disp].ydpi = ANDROID_DENSITY_TV; 370 } 371 } 372 return NO_ERROR; 373} 374 375int32_t HWComposer::allocateDisplayId() { 376 if (mAllocatedDisplayIDs.count() >= mNumDisplays) { 377 return NO_MEMORY; 378 } 379 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit(); 380 mAllocatedDisplayIDs.markBit(id); 381 mDisplayData[id].connected = true; 382 return id; 383} 384 385status_t HWComposer::freeDisplayId(int32_t id) { 386 if (id < HWC_NUM_DISPLAY_TYPES) { 387 // cannot free the reserved IDs 388 return BAD_VALUE; 389 } 390 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 391 return BAD_INDEX; 392 } 393 mAllocatedDisplayIDs.clearBit(id); 394 mDisplayData[id].connected = false; 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 disp.framebufferTarget->planeAlpha = 0xFF; 516 } 517 disp.list->retireFenceFd = -1; 518 disp.list->flags = HWC_GEOMETRY_CHANGED; 519 disp.list->numHwLayers = numLayers; 520 } 521 return NO_ERROR; 522} 523 524status_t HWComposer::setFramebufferTarget(int32_t id, 525 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) { 526 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 527 return BAD_INDEX; 528 } 529 DisplayData& disp(mDisplayData[id]); 530 if (!disp.framebufferTarget) { 531 // this should never happen, but apparently eglCreateWindowSurface() 532 // triggers a Surface::queueBuffer() on some 533 // devices (!?) -- log and ignore. 534 ALOGE("HWComposer: framebufferTarget is null"); 535// CallStack stack; 536// stack.update(); 537// stack.dump(""); 538 return NO_ERROR; 539 } 540 541 int acquireFenceFd = -1; 542 if (acquireFence->isValid()) { 543 acquireFenceFd = acquireFence->dup(); 544 } 545 546 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd); 547 disp.fbTargetHandle = buf->handle; 548 disp.framebufferTarget->handle = disp.fbTargetHandle; 549 disp.framebufferTarget->acquireFenceFd = acquireFenceFd; 550 return NO_ERROR; 551} 552 553status_t HWComposer::prepare() { 554 for (size_t i=0 ; i<mNumDisplays ; i++) { 555 DisplayData& disp(mDisplayData[i]); 556 if (disp.framebufferTarget) { 557 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET 558 // DO NOT reset the handle field to NULL, because it's possible 559 // that we have nothing to redraw (eg: eglSwapBuffers() not called) 560 // in which case, we should continue to use the same buffer. 561 LOG_FATAL_IF(disp.list == NULL); 562 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 563 } 564 if (!disp.connected && disp.list != NULL) { 565 ALOGW("WARNING: disp %d: connected, non-null list, layers=%d", 566 i, disp.list->numHwLayers); 567 } 568 mLists[i] = disp.list; 569 if (mLists[i]) { 570 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 571 mLists[i]->outbuf = NULL; 572 mLists[i]->outbufAcquireFenceFd = -1; 573 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 574 // garbage data to catch improper use 575 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF; 576 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF; 577 } else { 578 mLists[i]->dpy = EGL_NO_DISPLAY; 579 mLists[i]->sur = EGL_NO_SURFACE; 580 } 581 } 582 } 583 584 int err = mHwc->prepare(mHwc, mNumDisplays, mLists); 585 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err)); 586 587 if (err == NO_ERROR) { 588 // here we're just making sure that "skip" layers are set 589 // to HWC_FRAMEBUFFER and we're also counting how many layers 590 // we have of each type. 591 for (size_t i=0 ; i<mNumDisplays ; i++) { 592 DisplayData& disp(mDisplayData[i]); 593 disp.hasFbComp = false; 594 disp.hasOvComp = false; 595 if (disp.list) { 596 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 597 hwc_layer_1_t& l = disp.list->hwLayers[i]; 598 599 //ALOGD("prepare: %d, type=%d, handle=%p", 600 // i, l.compositionType, l.handle); 601 602 if (l.flags & HWC_SKIP_LAYER) { 603 l.compositionType = HWC_FRAMEBUFFER; 604 } 605 if (l.compositionType == HWC_FRAMEBUFFER) { 606 disp.hasFbComp = true; 607 } 608 if (l.compositionType == HWC_OVERLAY) { 609 disp.hasOvComp = true; 610 } 611 } 612 } 613 } 614 } 615 return (status_t)err; 616} 617 618bool HWComposer::hasHwcComposition(int32_t id) const { 619 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 620 return false; 621 return mDisplayData[id].hasOvComp; 622} 623 624bool HWComposer::hasGlesComposition(int32_t id) const { 625 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 626 return true; 627 return mDisplayData[id].hasFbComp; 628} 629 630int HWComposer::getAndResetReleaseFenceFd(int32_t id) { 631 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 632 return BAD_INDEX; 633 634 int fd = INVALID_OPERATION; 635 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 636 const DisplayData& disp(mDisplayData[id]); 637 if (disp.framebufferTarget) { 638 fd = disp.framebufferTarget->releaseFenceFd; 639 disp.framebufferTarget->acquireFenceFd = -1; 640 disp.framebufferTarget->releaseFenceFd = -1; 641 } 642 } 643 return fd; 644} 645 646status_t HWComposer::commit() { 647 int err = NO_ERROR; 648 if (mHwc) { 649 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 650 // On version 1.0, the OpenGL ES target surface is communicated 651 // by the (dpy, sur) fields and we are guaranteed to have only 652 // a single display. 653 mLists[0]->dpy = eglGetCurrentDisplay(); 654 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW); 655 } 656 657 // For virtual displays, the framebufferTarget buffer also serves as 658 // the HWC output buffer, so we need to copy the buffer handle and 659 // dup() the acquire fence. 660 for (size_t i=HWC_NUM_DISPLAY_TYPES; i<mNumDisplays; i++) { 661 DisplayData& disp(mDisplayData[i]); 662 if (disp.framebufferTarget) { 663 mLists[i]->outbuf = disp.framebufferTarget->handle; 664 mLists[i]->outbufAcquireFenceFd = 665 dup(disp.framebufferTarget->acquireFenceFd); 666 } 667 } 668 669 err = mHwc->set(mHwc, mNumDisplays, mLists); 670 671 for (size_t i=0 ; i<mNumDisplays ; i++) { 672 DisplayData& disp(mDisplayData[i]); 673 disp.lastDisplayFence = disp.lastRetireFence; 674 disp.lastRetireFence = Fence::NO_FENCE; 675 if (disp.list) { 676 if (disp.list->retireFenceFd != -1) { 677 disp.lastRetireFence = new Fence(disp.list->retireFenceFd); 678 disp.list->retireFenceFd = -1; 679 } 680 disp.list->flags &= ~HWC_GEOMETRY_CHANGED; 681 } 682 } 683 } 684 return (status_t)err; 685} 686 687status_t HWComposer::release(int disp) { 688 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES); 689 if (mHwc) { 690 eventControl(disp, HWC_EVENT_VSYNC, 0); 691 return (status_t)mHwc->blank(mHwc, disp, 1); 692 } 693 return NO_ERROR; 694} 695 696status_t HWComposer::acquire(int disp) { 697 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES); 698 if (mHwc) { 699 return (status_t)mHwc->blank(mHwc, disp, 0); 700 } 701 return NO_ERROR; 702} 703 704void HWComposer::disconnectDisplay(int disp) { 705 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY); 706 if (disp >= HWC_NUM_DISPLAY_TYPES) { 707 // nothing to do for these yet 708 return; 709 } 710 DisplayData& dd(mDisplayData[disp]); 711 if (dd.list != NULL) { 712 free(dd.list); 713 dd.list = NULL; 714 dd.framebufferTarget = NULL; // points into dd.list 715 dd.fbTargetHandle = NULL; 716 } 717} 718 719int HWComposer::getVisualID() const { 720 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 721 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 722 // is supported by the implementation. we can only be in this case 723 // if we have HWC 1.1 724 return HAL_PIXEL_FORMAT_RGBA_8888; 725 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 726 } else { 727 return mFbDev->format; 728 } 729} 730 731bool HWComposer::supportsFramebufferTarget() const { 732 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 733} 734 735int HWComposer::fbPost(int32_t id, 736 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 737 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 738 return setFramebufferTarget(id, acquireFence, buffer); 739 } else { 740 acquireFence->waitForever(1000, "HWComposer::fbPost"); 741 return mFbDev->post(mFbDev, buffer->handle); 742 } 743} 744 745int HWComposer::fbCompositionComplete() { 746 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 747 return NO_ERROR; 748 749 if (mFbDev->compositionComplete) { 750 return mFbDev->compositionComplete(mFbDev); 751 } else { 752 return INVALID_OPERATION; 753 } 754} 755 756void HWComposer::fbDump(String8& result) { 757 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) { 758 const size_t SIZE = 4096; 759 char buffer[SIZE]; 760 mFbDev->dump(mFbDev, buffer, SIZE); 761 result.append(buffer); 762 } 763} 764 765/* 766 * Helper template to implement a concrete HWCLayer 767 * This holds the pointer to the concrete hwc layer type 768 * and implements the "iterable" side of HWCLayer. 769 */ 770template<typename CONCRETE, typename HWCTYPE> 771class Iterable : public HWComposer::HWCLayer { 772protected: 773 HWCTYPE* const mLayerList; 774 HWCTYPE* mCurrentLayer; 775 Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { } 776 inline HWCTYPE const * getLayer() const { return mCurrentLayer; } 777 inline HWCTYPE* getLayer() { return mCurrentLayer; } 778 virtual ~Iterable() { } 779private: 780 // returns a copy of ourselves 781 virtual HWComposer::HWCLayer* dup() { 782 return new CONCRETE( static_cast<const CONCRETE&>(*this) ); 783 } 784 virtual status_t setLayer(size_t index) { 785 mCurrentLayer = &mLayerList[index]; 786 return NO_ERROR; 787 } 788}; 789 790/* 791 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0. 792 * This implements the HWCLayer side of HWCIterableLayer. 793 */ 794class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> { 795 struct hwc_composer_device_1* mHwc; 796public: 797 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer) 798 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { } 799 800 virtual int32_t getCompositionType() const { 801 return getLayer()->compositionType; 802 } 803 virtual uint32_t getHints() const { 804 return getLayer()->hints; 805 } 806 virtual int getAndResetReleaseFenceFd() { 807 int fd = getLayer()->releaseFenceFd; 808 getLayer()->releaseFenceFd = -1; 809 return fd; 810 } 811 virtual void setAcquireFenceFd(int fenceFd) { 812 getLayer()->acquireFenceFd = fenceFd; 813 } 814 virtual void setPerFrameDefaultState() { 815 //getLayer()->compositionType = HWC_FRAMEBUFFER; 816 } 817 virtual void setPlaneAlpha(uint8_t alpha) { 818 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 819 getLayer()->planeAlpha = alpha; 820 } else { 821 if (alpha < 0xFF) { 822 getLayer()->flags |= HWC_SKIP_LAYER; 823 } 824 } 825 } 826 virtual void setDefaultState() { 827 hwc_layer_1_t* const l = getLayer(); 828 l->compositionType = HWC_FRAMEBUFFER; 829 l->hints = 0; 830 l->flags = HWC_SKIP_LAYER; 831 l->handle = 0; 832 l->transform = 0; 833 l->blending = HWC_BLENDING_NONE; 834 l->visibleRegionScreen.numRects = 0; 835 l->visibleRegionScreen.rects = NULL; 836 l->acquireFenceFd = -1; 837 l->releaseFenceFd = -1; 838 l->planeAlpha = 0xFF; 839 } 840 virtual void setSkip(bool skip) { 841 if (skip) { 842 getLayer()->flags |= HWC_SKIP_LAYER; 843 } else { 844 getLayer()->flags &= ~HWC_SKIP_LAYER; 845 } 846 } 847 virtual void setBlending(uint32_t blending) { 848 getLayer()->blending = blending; 849 } 850 virtual void setTransform(uint32_t transform) { 851 getLayer()->transform = transform; 852 } 853 virtual void setFrame(const Rect& frame) { 854 reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame; 855 } 856 virtual void setCrop(const Rect& crop) { 857 reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop; 858 } 859 virtual void setVisibleRegionScreen(const Region& reg) { 860 // Region::getSharedBuffer creates a reference to the underlying 861 // SharedBuffer of this Region, this reference is freed 862 // in onDisplayed() 863 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 864 SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects); 865 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data()); 866 } 867 virtual void setBuffer(const sp<GraphicBuffer>& buffer) { 868 if (buffer == 0 || buffer->handle == 0) { 869 getLayer()->compositionType = HWC_FRAMEBUFFER; 870 getLayer()->flags |= HWC_SKIP_LAYER; 871 getLayer()->handle = 0; 872 } else { 873 getLayer()->handle = buffer->handle; 874 } 875 } 876 virtual void onDisplayed() { 877 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 878 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects); 879 if (sb) { 880 sb->release(); 881 // not technically needed but safer 882 visibleRegion.numRects = 0; 883 visibleRegion.rects = NULL; 884 } 885 886 getLayer()->acquireFenceFd = -1; 887 } 888}; 889 890/* 891 * returns an iterator initialized at a given index in the layer list 892 */ 893HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) { 894 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 895 return LayerListIterator(); 896 } 897 const DisplayData& disp(mDisplayData[id]); 898 if (!mHwc || !disp.list || index > disp.list->numHwLayers) { 899 return LayerListIterator(); 900 } 901 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers), index); 902} 903 904/* 905 * returns an iterator on the beginning of the layer list 906 */ 907HWComposer::LayerListIterator HWComposer::begin(int32_t id) { 908 return getLayerIterator(id, 0); 909} 910 911/* 912 * returns an iterator on the end of the layer list 913 */ 914HWComposer::LayerListIterator HWComposer::end(int32_t id) { 915 size_t numLayers = 0; 916 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) { 917 const DisplayData& disp(mDisplayData[id]); 918 if (mHwc && disp.list) { 919 numLayers = disp.list->numHwLayers; 920 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 921 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET, 922 // which we ignore when iterating through the layer list. 923 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id); 924 if (numLayers) { 925 numLayers--; 926 } 927 } 928 } 929 } 930 return getLayerIterator(id, numLayers); 931} 932 933void HWComposer::dump(String8& result, char* buffer, size_t SIZE) const { 934 if (mHwc) { 935 result.appendFormat("Hardware Composer state (version %8x):\n", hwcApiVersion(mHwc)); 936 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync); 937 for (size_t i=0 ; i<mNumDisplays ; i++) { 938 const DisplayData& disp(mDisplayData[i]); 939 940 const Vector< sp<Layer> >& visibleLayersSortedByZ = 941 mFlinger->getLayerSortedByZForHwcDisplay(i); 942 943 if (disp.connected) { 944 result.appendFormat( 945 " Display[%d] : %ux%u, xdpi=%f, ydpi=%f, refresh=%lld\n", 946 i, disp.width, disp.height, disp.xdpi, disp.ydpi, disp.refresh); 947 } 948 949 if (disp.list && disp.connected) { 950 result.appendFormat( 951 " numHwLayers=%u, flags=%08x\n", 952 disp.list->numHwLayers, disp.list->flags); 953 954 result.append( 955 " type | handle | hints | flags | tr | blend | format | source crop | frame name \n" 956 "------------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n"); 957 // " __________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____] 958 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 959 const hwc_layer_1_t&l = disp.list->hwLayers[i]; 960 int32_t format = -1; 961 String8 name("unknown"); 962 963 if (i < visibleLayersSortedByZ.size()) { 964 const sp<Layer>& layer(visibleLayersSortedByZ[i]); 965 const sp<GraphicBuffer>& buffer( 966 layer->getActiveBuffer()); 967 if (buffer != NULL) { 968 format = buffer->getPixelFormat(); 969 } 970 name = layer->getName(); 971 } 972 973 int type = l.compositionType; 974 if (type == HWC_FRAMEBUFFER_TARGET) { 975 name = "HWC_FRAMEBUFFER_TARGET"; 976 format = disp.format; 977 } 978 979 static char const* compositionTypeName[] = { 980 "GLES", 981 "HWC", 982 "BACKGROUND", 983 "FB TARGET", 984 "UNKNOWN"}; 985 if (type >= NELEM(compositionTypeName)) 986 type = NELEM(compositionTypeName) - 1; 987 988 result.appendFormat( 989 " %10s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n", 990 compositionTypeName[type], 991 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format, 992 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, 993 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, 994 name.string()); 995 } 996 } 997 } 998 } 999 1000 if (mHwc && mHwc->dump) { 1001 mHwc->dump(mHwc, buffer, SIZE); 1002 result.append(buffer); 1003 } 1004} 1005 1006// --------------------------------------------------------------------------- 1007 1008HWComposer::VSyncThread::VSyncThread(HWComposer& hwc) 1009 : mHwc(hwc), mEnabled(false), 1010 mNextFakeVSync(0), 1011 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY)) 1012{ 1013} 1014 1015void HWComposer::VSyncThread::setEnabled(bool enabled) { 1016 Mutex::Autolock _l(mLock); 1017 if (mEnabled != enabled) { 1018 mEnabled = enabled; 1019 mCondition.signal(); 1020 } 1021} 1022 1023void HWComposer::VSyncThread::onFirstRef() { 1024 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE); 1025} 1026 1027bool HWComposer::VSyncThread::threadLoop() { 1028 { // scope for lock 1029 Mutex::Autolock _l(mLock); 1030 while (!mEnabled) { 1031 mCondition.wait(mLock); 1032 } 1033 } 1034 1035 const nsecs_t period = mRefreshPeriod; 1036 const nsecs_t now = systemTime(CLOCK_MONOTONIC); 1037 nsecs_t next_vsync = mNextFakeVSync; 1038 nsecs_t sleep = next_vsync - now; 1039 if (sleep < 0) { 1040 // we missed, find where the next vsync should be 1041 sleep = (period - ((now - next_vsync) % period)); 1042 next_vsync = now + sleep; 1043 } 1044 mNextFakeVSync = next_vsync + period; 1045 1046 struct timespec spec; 1047 spec.tv_sec = next_vsync / 1000000000; 1048 spec.tv_nsec = next_vsync % 1000000000; 1049 1050 int err; 1051 do { 1052 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL); 1053 } while (err<0 && errno == EINTR); 1054 1055 if (err == 0) { 1056 mHwc.mEventHandler.onVSyncReceived(0, next_vsync); 1057 } 1058 1059 return true; 1060} 1061 1062HWComposer::DisplayData::DisplayData() 1063: width(0), height(0), format(0), 1064 xdpi(0.0f), ydpi(0.0f), 1065 refresh(0), 1066 connected(false), 1067 hasFbComp(false), hasOvComp(false), 1068 capacity(0), list(NULL), 1069 framebufferTarget(NULL), fbTargetHandle(0), 1070 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE), 1071 events(0) 1072{} 1073 1074HWComposer::DisplayData::~DisplayData() { 1075 free(list); 1076} 1077 1078// --------------------------------------------------------------------------- 1079}; // namespace android 1080