HWComposer.cpp revision a9a1b006e48320f5c501473e51e6c4a5f7a17b88
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 "LayerBase.h" 45#include "HWComposer.h" 46#include "SurfaceFlinger.h" 47#include <utils/CallStack.h> 48 49namespace android { 50 51#define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION 52 53static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) { 54 uint32_t hwcVersion = hwc->common.version; 55 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK; 56} 57 58static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) { 59 uint32_t hwcVersion = hwc->common.version; 60 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK; 61} 62 63static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc, 64 uint32_t version) { 65 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK); 66} 67 68// --------------------------------------------------------------------------- 69 70struct HWComposer::cb_context { 71 struct callbacks : public hwc_procs_t { 72 // these are here to facilitate the transition when adding 73 // new callbacks (an implementation can check for NULL before 74 // calling a new callback). 75 void (*zero[4])(void); 76 }; 77 callbacks procs; 78 HWComposer* hwc; 79}; 80 81// --------------------------------------------------------------------------- 82 83HWComposer::HWComposer( 84 const sp<SurfaceFlinger>& flinger, 85 EventHandler& handler) 86 : mFlinger(flinger), 87 mFbDev(0), mHwc(0), mNumDisplays(1), 88 mCBContext(new cb_context), 89 mEventHandler(handler), 90 mVSyncCount(0), mDebugForceFakeVSync(false) 91{ 92 for (size_t i =0 ; i<MAX_DISPLAYS ; i++) { 93 mLists[i] = 0; 94 } 95 96 char value[PROPERTY_VALUE_MAX]; 97 property_get("debug.sf.no_hw_vsync", value, "0"); 98 mDebugForceFakeVSync = atoi(value); 99 100 bool needVSyncThread = true; 101 102 // Note: some devices may insist that the FB HAL be opened before HWC. 103 loadFbHalModule(); 104 loadHwcModule(); 105 106 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 107 // close FB HAL if we don't needed it. 108 // FIXME: this is temporary until we're not forced to open FB HAL 109 // before HWC. 110 framebuffer_close(mFbDev); 111 mFbDev = NULL; 112 } 113 114 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory. 115 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 116 && !mFbDev) { 117 ALOGE("ERROR: failed to open framebuffer, aborting"); 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. 238void HWComposer::loadFbHalModule() 239{ 240 hw_module_t const* module; 241 242 if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) != 0) { 243 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID); 244 return; 245 } 246 247 int err = framebuffer_open(module, &mFbDev); 248 if (err) { 249 ALOGE("framebuffer_open failed (%s)", strerror(-err)); 250 return; 251 } 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 >= HWC_NUM_DISPLAY_TYPES) { 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 return id; 385} 386 387status_t HWComposer::freeDisplayId(int32_t id) { 388 if (id < HWC_NUM_DISPLAY_TYPES) { 389 // cannot free the reserved IDs 390 return BAD_VALUE; 391 } 392 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 393 return BAD_INDEX; 394 } 395 mAllocatedDisplayIDs.clearBit(id); 396 return NO_ERROR; 397} 398 399nsecs_t HWComposer::getRefreshPeriod(int disp) const { 400 return mDisplayData[disp].refresh; 401} 402 403nsecs_t HWComposer::getRefreshTimestamp(int disp) const { 404 // this returns the last refresh timestamp. 405 // if the last one is not available, we estimate it based on 406 // the refresh period and whatever closest timestamp we have. 407 Mutex::Autolock _l(mLock); 408 nsecs_t now = systemTime(CLOCK_MONOTONIC); 409 return now - ((now - mLastHwVSync) % mDisplayData[disp].refresh); 410} 411 412sp<Fence> HWComposer::getDisplayFence(int disp) const { 413 return mDisplayData[disp].lastDisplayFence; 414} 415 416 417uint32_t HWComposer::getWidth(int disp) const { 418 return mDisplayData[disp].width; 419} 420 421uint32_t HWComposer::getHeight(int disp) const { 422 return mDisplayData[disp].height; 423} 424 425uint32_t HWComposer::getFormat(int disp) const { 426 return mDisplayData[disp].format; 427} 428 429float HWComposer::getDpiX(int disp) const { 430 return mDisplayData[disp].xdpi; 431} 432 433float HWComposer::getDpiY(int disp) const { 434 return mDisplayData[disp].ydpi; 435} 436 437bool HWComposer::isConnected(int disp) const { 438 return mDisplayData[disp].connected; 439} 440 441void HWComposer::eventControl(int disp, int event, int enabled) { 442 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) { 443 ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)", 444 event, disp, enabled); 445 return; 446 } 447 if (event != EVENT_VSYNC) { 448 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)", 449 event, disp, enabled); 450 return; 451 } 452 status_t err = NO_ERROR; 453 if (mHwc && !mDebugForceFakeVSync) { 454 // NOTE: we use our own internal lock here because we have to call 455 // into the HWC with the lock held, and we want to make sure 456 // that even if HWC blocks (which it shouldn't), it won't 457 // affect other threads. 458 Mutex::Autolock _l(mEventControlLock); 459 const int32_t eventBit = 1UL << event; 460 const int32_t newValue = enabled ? eventBit : 0; 461 const int32_t oldValue = mDisplayData[disp].events & eventBit; 462 if (newValue != oldValue) { 463 ATRACE_CALL(); 464 err = mHwc->eventControl(mHwc, disp, event, enabled); 465 if (!err) { 466 int32_t& events(mDisplayData[disp].events); 467 events = (events & ~eventBit) | newValue; 468 } 469 } 470 // error here should not happen -- not sure what we should 471 // do if it does. 472 ALOGE_IF(err, "eventControl(%d, %d) failed %s", 473 event, enabled, strerror(-err)); 474 } 475 476 if (err == NO_ERROR && mVSyncThread != NULL) { 477 mVSyncThread->setEnabled(enabled); 478 } 479} 480 481status_t HWComposer::createWorkList(int32_t id, size_t numLayers) { 482 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 483 return BAD_INDEX; 484 } 485 486 if (mHwc) { 487 DisplayData& disp(mDisplayData[id]); 488 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 489 // we need space for the HWC_FRAMEBUFFER_TARGET 490 numLayers++; 491 } 492 if (disp.capacity < numLayers || disp.list == NULL) { 493 size_t size = sizeof(hwc_display_contents_1_t) 494 + numLayers * sizeof(hwc_layer_1_t); 495 free(disp.list); 496 disp.list = (hwc_display_contents_1_t*)malloc(size); 497 disp.capacity = numLayers; 498 } 499 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 500 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1]; 501 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t)); 502 const hwc_rect_t r = { 0, 0, (int) disp.width, (int) disp.height }; 503 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 504 disp.framebufferTarget->hints = 0; 505 disp.framebufferTarget->flags = 0; 506 disp.framebufferTarget->handle = disp.fbTargetHandle; 507 disp.framebufferTarget->transform = 0; 508 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT; 509 disp.framebufferTarget->sourceCrop = r; 510 disp.framebufferTarget->displayFrame = r; 511 disp.framebufferTarget->visibleRegionScreen.numRects = 1; 512 disp.framebufferTarget->visibleRegionScreen.rects = 513 &disp.framebufferTarget->displayFrame; 514 disp.framebufferTarget->acquireFenceFd = -1; 515 disp.framebufferTarget->releaseFenceFd = -1; 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 (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 (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 626 return false; 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 err = mHwc->set(mHwc, mNumDisplays, mLists); 658 659 for (size_t i=0 ; i<mNumDisplays ; i++) { 660 DisplayData& disp(mDisplayData[i]); 661 disp.lastDisplayFence = disp.lastRetireFence; 662 disp.lastRetireFence = Fence::NO_FENCE; 663 if (disp.list) { 664 if (disp.list->retireFenceFd != -1) { 665 disp.lastRetireFence = new Fence(disp.list->retireFenceFd); 666 disp.list->retireFenceFd = -1; 667 } 668 disp.list->flags &= ~HWC_GEOMETRY_CHANGED; 669 } 670 } 671 } 672 return (status_t)err; 673} 674 675status_t HWComposer::release(int disp) { 676 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES); 677 if (mHwc) { 678 eventControl(disp, HWC_EVENT_VSYNC, 0); 679 return (status_t)mHwc->blank(mHwc, disp, 1); 680 } 681 return NO_ERROR; 682} 683 684status_t HWComposer::acquire(int disp) { 685 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES); 686 if (mHwc) { 687 return (status_t)mHwc->blank(mHwc, disp, 0); 688 } 689 return NO_ERROR; 690} 691 692void HWComposer::disconnectDisplay(int disp) { 693 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY); 694 if (disp >= HWC_NUM_DISPLAY_TYPES) { 695 // nothing to do for these yet 696 return; 697 } 698 DisplayData& dd(mDisplayData[disp]); 699 if (dd.list != NULL) { 700 free(dd.list); 701 dd.list = NULL; 702 dd.framebufferTarget = NULL; // points into dd.list 703 dd.fbTargetHandle = NULL; 704 } 705} 706 707int HWComposer::getVisualID() const { 708 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 709 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 710 // is supported by the implementation. we can only be in this case 711 // if we have HWC 1.1 712 return HAL_PIXEL_FORMAT_RGBA_8888; 713 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 714 } else { 715 return mFbDev->format; 716 } 717} 718 719bool HWComposer::supportsFramebufferTarget() const { 720 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 721} 722 723int HWComposer::fbPost(int32_t id, 724 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 725 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 726 return setFramebufferTarget(id, acquireFence, buffer); 727 } else { 728 acquireFence->waitForever(1000, "HWComposer::fbPost"); 729 return mFbDev->post(mFbDev, buffer->handle); 730 } 731} 732 733int HWComposer::fbCompositionComplete() { 734 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 735 return NO_ERROR; 736 737 if (mFbDev->compositionComplete) { 738 return mFbDev->compositionComplete(mFbDev); 739 } else { 740 return INVALID_OPERATION; 741 } 742} 743 744void HWComposer::fbDump(String8& result) { 745 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) { 746 const size_t SIZE = 4096; 747 char buffer[SIZE]; 748 mFbDev->dump(mFbDev, buffer, SIZE); 749 result.append(buffer); 750 } 751} 752 753/* 754 * Helper template to implement a concrete HWCLayer 755 * This holds the pointer to the concrete hwc layer type 756 * and implements the "iterable" side of HWCLayer. 757 */ 758template<typename CONCRETE, typename HWCTYPE> 759class Iterable : public HWComposer::HWCLayer { 760protected: 761 HWCTYPE* const mLayerList; 762 HWCTYPE* mCurrentLayer; 763 Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { } 764 inline HWCTYPE const * getLayer() const { return mCurrentLayer; } 765 inline HWCTYPE* getLayer() { return mCurrentLayer; } 766 virtual ~Iterable() { } 767private: 768 // returns a copy of ourselves 769 virtual HWComposer::HWCLayer* dup() { 770 return new CONCRETE( static_cast<const CONCRETE&>(*this) ); 771 } 772 virtual status_t setLayer(size_t index) { 773 mCurrentLayer = &mLayerList[index]; 774 return NO_ERROR; 775 } 776}; 777 778/* 779 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0. 780 * This implements the HWCLayer side of HWCIterableLayer. 781 */ 782class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> { 783 struct hwc_composer_device_1* mHwc; 784public: 785 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer) 786 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { } 787 788 virtual int32_t getCompositionType() const { 789 return getLayer()->compositionType; 790 } 791 virtual uint32_t getHints() const { 792 return getLayer()->hints; 793 } 794 virtual int getAndResetReleaseFenceFd() { 795 int fd = getLayer()->releaseFenceFd; 796 getLayer()->releaseFenceFd = -1; 797 return fd; 798 } 799 virtual void setAcquireFenceFd(int fenceFd) { 800 getLayer()->acquireFenceFd = fenceFd; 801 } 802 virtual void setPerFrameDefaultState() { 803 //getLayer()->compositionType = HWC_FRAMEBUFFER; 804 } 805 virtual void setPlaneAlpha(uint8_t alpha) { 806 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 807 getLayer()->planeAlpha = alpha; 808 } else { 809 if (alpha < 0xFF) { 810 getLayer()->flags |= HWC_SKIP_LAYER; 811 } 812 } 813 } 814 virtual void setDefaultState() { 815 hwc_layer_1_t* const l = getLayer(); 816 l->compositionType = HWC_FRAMEBUFFER; 817 l->hints = 0; 818 l->flags = HWC_SKIP_LAYER; 819 l->handle = 0; 820 l->transform = 0; 821 l->blending = HWC_BLENDING_NONE; 822 l->visibleRegionScreen.numRects = 0; 823 l->visibleRegionScreen.rects = NULL; 824 l->acquireFenceFd = -1; 825 l->releaseFenceFd = -1; 826 l->planeAlpha = 0xFF; 827 } 828 virtual void setSkip(bool skip) { 829 if (skip) { 830 getLayer()->flags |= HWC_SKIP_LAYER; 831 } else { 832 getLayer()->flags &= ~HWC_SKIP_LAYER; 833 } 834 } 835 virtual void setBlending(uint32_t blending) { 836 getLayer()->blending = blending; 837 } 838 virtual void setTransform(uint32_t transform) { 839 getLayer()->transform = transform; 840 } 841 virtual void setFrame(const Rect& frame) { 842 reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame; 843 } 844 virtual void setCrop(const Rect& crop) { 845 reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop; 846 } 847 virtual void setVisibleRegionScreen(const Region& reg) { 848 // Region::getSharedBuffer creates a reference to the underlying 849 // SharedBuffer of this Region, this reference is freed 850 // in onDisplayed() 851 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 852 SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects); 853 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data()); 854 } 855 virtual void setBuffer(const sp<GraphicBuffer>& buffer) { 856 if (buffer == 0 || buffer->handle == 0) { 857 getLayer()->compositionType = HWC_FRAMEBUFFER; 858 getLayer()->flags |= HWC_SKIP_LAYER; 859 getLayer()->handle = 0; 860 } else { 861 getLayer()->handle = buffer->handle; 862 } 863 } 864 virtual void onDisplayed() { 865 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 866 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects); 867 if (sb) { 868 sb->release(); 869 // not technically needed but safer 870 visibleRegion.numRects = 0; 871 visibleRegion.rects = NULL; 872 } 873 874 getLayer()->acquireFenceFd = -1; 875 } 876}; 877 878/* 879 * returns an iterator initialized at a given index in the layer list 880 */ 881HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) { 882 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 883 return LayerListIterator(); 884 } 885 const DisplayData& disp(mDisplayData[id]); 886 if (!mHwc || !disp.list || index > disp.list->numHwLayers) { 887 return LayerListIterator(); 888 } 889 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers), index); 890} 891 892/* 893 * returns an iterator on the beginning of the layer list 894 */ 895HWComposer::LayerListIterator HWComposer::begin(int32_t id) { 896 return getLayerIterator(id, 0); 897} 898 899/* 900 * returns an iterator on the end of the layer list 901 */ 902HWComposer::LayerListIterator HWComposer::end(int32_t id) { 903 size_t numLayers = 0; 904 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) { 905 const DisplayData& disp(mDisplayData[id]); 906 if (mHwc && disp.list) { 907 numLayers = disp.list->numHwLayers; 908 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 909 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET, 910 // which we ignore when iterating through the layer list. 911 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id); 912 if (numLayers) { 913 numLayers--; 914 } 915 } 916 } 917 } 918 return getLayerIterator(id, numLayers); 919} 920 921void HWComposer::dump(String8& result, char* buffer, size_t SIZE) const { 922 if (mHwc) { 923 result.appendFormat("Hardware Composer state (version %8x):\n", hwcApiVersion(mHwc)); 924 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync); 925 for (size_t i=0 ; i<mNumDisplays ; i++) { 926 const DisplayData& disp(mDisplayData[i]); 927 928 const Vector< sp<LayerBase> >& visibleLayersSortedByZ = 929 mFlinger->getLayerSortedByZForHwcDisplay(i); 930 931 if (disp.connected) { 932 result.appendFormat( 933 " Display[%d] : %ux%u, xdpi=%f, ydpi=%f, refresh=%lld\n", 934 i, disp.width, disp.height, disp.xdpi, disp.ydpi, disp.refresh); 935 } 936 937 if (disp.list && disp.connected) { 938 result.appendFormat( 939 " numHwLayers=%u, flags=%08x\n", 940 disp.list->numHwLayers, disp.list->flags); 941 942 result.append( 943 " type | handle | hints | flags | tr | blend | format | source crop | frame name \n" 944 "------------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n"); 945 // " __________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____] 946 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 947 const hwc_layer_1_t&l = disp.list->hwLayers[i]; 948 int32_t format = -1; 949 String8 name("unknown"); 950 951 if (i < visibleLayersSortedByZ.size()) { 952 const sp<LayerBase>& layer(visibleLayersSortedByZ[i]); 953 if (layer->getLayer() != NULL) { 954 const sp<GraphicBuffer>& buffer( 955 layer->getLayer()->getActiveBuffer()); 956 if (buffer != NULL) { 957 format = buffer->getPixelFormat(); 958 } 959 } 960 name = layer->getName(); 961 } 962 963 int type = l.compositionType; 964 if (type == HWC_FRAMEBUFFER_TARGET) { 965 name = "HWC_FRAMEBUFFER_TARGET"; 966 format = disp.format; 967 } 968 969 static char const* compositionTypeName[] = { 970 "GLES", 971 "HWC", 972 "BACKGROUND", 973 "FB TARGET", 974 "UNKNOWN"}; 975 if (type >= NELEM(compositionTypeName)) 976 type = NELEM(compositionTypeName) - 1; 977 978 result.appendFormat( 979 " %10s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n", 980 compositionTypeName[type], 981 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format, 982 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, 983 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, 984 name.string()); 985 } 986 } 987 } 988 } 989 990 if (mHwc && mHwc->dump) { 991 mHwc->dump(mHwc, buffer, SIZE); 992 result.append(buffer); 993 } 994} 995 996// --------------------------------------------------------------------------- 997 998HWComposer::VSyncThread::VSyncThread(HWComposer& hwc) 999 : mHwc(hwc), mEnabled(false), 1000 mNextFakeVSync(0), 1001 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY)) 1002{ 1003} 1004 1005void HWComposer::VSyncThread::setEnabled(bool enabled) { 1006 Mutex::Autolock _l(mLock); 1007 if (mEnabled != enabled) { 1008 mEnabled = enabled; 1009 mCondition.signal(); 1010 } 1011} 1012 1013void HWComposer::VSyncThread::onFirstRef() { 1014 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE); 1015} 1016 1017bool HWComposer::VSyncThread::threadLoop() { 1018 { // scope for lock 1019 Mutex::Autolock _l(mLock); 1020 while (!mEnabled) { 1021 mCondition.wait(mLock); 1022 } 1023 } 1024 1025 const nsecs_t period = mRefreshPeriod; 1026 const nsecs_t now = systemTime(CLOCK_MONOTONIC); 1027 nsecs_t next_vsync = mNextFakeVSync; 1028 nsecs_t sleep = next_vsync - now; 1029 if (sleep < 0) { 1030 // we missed, find where the next vsync should be 1031 sleep = (period - ((now - next_vsync) % period)); 1032 next_vsync = now + sleep; 1033 } 1034 mNextFakeVSync = next_vsync + period; 1035 1036 struct timespec spec; 1037 spec.tv_sec = next_vsync / 1000000000; 1038 spec.tv_nsec = next_vsync % 1000000000; 1039 1040 int err; 1041 do { 1042 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL); 1043 } while (err<0 && errno == EINTR); 1044 1045 if (err == 0) { 1046 mHwc.mEventHandler.onVSyncReceived(0, next_vsync); 1047 } 1048 1049 return true; 1050} 1051 1052HWComposer::DisplayData::DisplayData() 1053: width(0), height(0), format(0), 1054 xdpi(0.0f), ydpi(0.0f), 1055 refresh(0), 1056 connected(false), 1057 hasFbComp(false), hasOvComp(false), 1058 capacity(0), list(NULL), 1059 framebufferTarget(NULL), fbTargetHandle(0), 1060 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE), 1061 events(0) 1062{} 1063 1064HWComposer::DisplayData::~DisplayData() { 1065 free(list); 1066} 1067 1068// --------------------------------------------------------------------------- 1069}; // namespace android 1070