HWComposer.cpp revision 27ec5739bc05330e08b02f25b62a8f597bad897a
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 0 52 53static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) { 54 uint32_t hwcVersion = hwc->common.version; 55 if (MIN_HWC_HEADER_VERSION == 0 && 56 (hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK) == 0) { 57 // legacy version encoding 58 hwcVersion <<= 16; 59 } 60 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK; 61} 62 63static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) { 64 uint32_t hwcVersion = hwc->common.version; 65 if (MIN_HWC_HEADER_VERSION == 0 && 66 (hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK) == 0) { 67 // legacy version encoding 68 hwcVersion <<= 16; 69 } 70 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK; 71} 72 73static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc, 74 uint32_t version) { 75 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK); 76} 77 78// --------------------------------------------------------------------------- 79 80struct HWComposer::cb_context { 81 struct callbacks : public hwc_procs_t { 82 // these are here to facilitate the transition when adding 83 // new callbacks (an implementation can check for NULL before 84 // calling a new callback). 85 void (*zero[4])(void); 86 }; 87 callbacks procs; 88 HWComposer* hwc; 89}; 90 91// --------------------------------------------------------------------------- 92 93HWComposer::HWComposer( 94 const sp<SurfaceFlinger>& flinger, 95 EventHandler& handler) 96 : mFlinger(flinger), 97 mFbDev(0), mHwc(0), mNumDisplays(1), 98 mCBContext(new cb_context), 99 mEventHandler(handler), 100 mVSyncCount(0), mDebugForceFakeVSync(false) 101{ 102 for (size_t i =0 ; i<MAX_DISPLAYS ; i++) { 103 mLists[i] = 0; 104 } 105 106 char value[PROPERTY_VALUE_MAX]; 107 property_get("debug.sf.no_hw_vsync", value, "0"); 108 mDebugForceFakeVSync = atoi(value); 109 110 bool needVSyncThread = true; 111 112 // Note: some devices may insist that the FB HAL be opened before HWC. 113 loadFbHalModule(); 114 loadHwcModule(); 115 116 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 117 // close FB HAL if we don't needed it. 118 // FIXME: this is temporary until we're not forced to open FB HAL 119 // before HWC. 120 framebuffer_close(mFbDev); 121 mFbDev = NULL; 122 } 123 124 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory. 125 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 126 && !mFbDev) { 127 ALOGE("ERROR: failed to open framebuffer, aborting"); 128 abort(); 129 } 130 131 if (mHwc) { 132 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER, 133 (hwcApiVersion(mHwc) >> 24) & 0xff, 134 (hwcApiVersion(mHwc) >> 16) & 0xff); 135 if (mHwc->registerProcs) { 136 mCBContext->hwc = this; 137 mCBContext->procs.invalidate = &hook_invalidate; 138 mCBContext->procs.vsync = &hook_vsync; 139 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 140 mCBContext->procs.hotplug = &hook_hotplug; 141 else 142 mCBContext->procs.hotplug = NULL; 143 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero)); 144 mHwc->registerProcs(mHwc, &mCBContext->procs); 145 } 146 147 // don't need a vsync thread if we have a hardware composer 148 needVSyncThread = false; 149 // always turn vsync off when we start 150 mHwc->eventControl(mHwc, HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 151 152 // these IDs are always reserved 153 for (size_t i=0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) { 154 mAllocatedDisplayIDs.markBit(i); 155 } 156 157 // the number of displays we actually have depends on the 158 // hw composer version 159 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 160 // 1.2 adds support for virtual displays 161 mNumDisplays = MAX_DISPLAYS; 162 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 163 // 1.1 adds support for multiple displays 164 mNumDisplays = HWC_NUM_DISPLAY_TYPES; 165 } else { 166 mNumDisplays = 1; 167 } 168 } 169 170 if (mFbDev) { 171 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)), 172 "should only have fbdev if no hwc or hwc is 1.0"); 173 174 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]); 175 disp.connected = true; 176 disp.width = mFbDev->width; 177 disp.height = mFbDev->height; 178 disp.format = mFbDev->format; 179 disp.xdpi = mFbDev->xdpi; 180 disp.ydpi = mFbDev->ydpi; 181 if (disp.refresh == 0) { 182 disp.refresh = nsecs_t(1e9 / mFbDev->fps); 183 ALOGW("getting VSYNC period from fb HAL: %lld", disp.refresh); 184 } 185 if (disp.refresh == 0) { 186 disp.refresh = nsecs_t(1e9 / 60.0); 187 ALOGW("getting VSYNC period from thin air: %lld", 188 mDisplayData[HWC_DISPLAY_PRIMARY].refresh); 189 } 190 } else if (mHwc) { 191 // here we're guaranteed to have at least HWC 1.1 192 for (size_t i =0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) { 193 queryDisplayProperties(i); 194 } 195 } 196 197 if (needVSyncThread) { 198 // we don't have VSYNC support, we need to fake it 199 mVSyncThread = new VSyncThread(*this); 200 } 201} 202 203HWComposer::~HWComposer() { 204 if (mHwc) { 205 mHwc->eventControl(mHwc, HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 206 } 207 if (mVSyncThread != NULL) { 208 mVSyncThread->requestExitAndWait(); 209 } 210 if (mHwc) { 211 hwc_close_1(mHwc); 212 } 213 if (mFbDev) { 214 framebuffer_close(mFbDev); 215 } 216 delete mCBContext; 217} 218 219// Load and prepare the hardware composer module. Sets mHwc. 220void HWComposer::loadHwcModule() 221{ 222 hw_module_t const* module; 223 224 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) { 225 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID); 226 return; 227 } 228 229 int err = hwc_open_1(module, &mHwc); 230 if (err) { 231 ALOGE("%s device failed to initialize (%s)", 232 HWC_HARDWARE_COMPOSER, strerror(-err)); 233 return; 234 } 235 236 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) || 237 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION || 238 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) { 239 ALOGE("%s device version %#x unsupported, will not be used", 240 HWC_HARDWARE_COMPOSER, mHwc->common.version); 241 hwc_close_1(mHwc); 242 mHwc = NULL; 243 return; 244 } 245} 246 247// Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev. 248void HWComposer::loadFbHalModule() 249{ 250 hw_module_t const* module; 251 252 if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) != 0) { 253 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID); 254 return; 255 } 256 257 int err = framebuffer_open(module, &mFbDev); 258 if (err) { 259 ALOGE("framebuffer_open failed (%s)", strerror(-err)); 260 return; 261 } 262} 263 264status_t HWComposer::initCheck() const { 265 return mHwc ? NO_ERROR : NO_INIT; 266} 267 268void HWComposer::hook_invalidate(const struct hwc_procs* procs) { 269 cb_context* ctx = reinterpret_cast<cb_context*>( 270 const_cast<hwc_procs_t*>(procs)); 271 ctx->hwc->invalidate(); 272} 273 274void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp, 275 int64_t timestamp) { 276 cb_context* ctx = reinterpret_cast<cb_context*>( 277 const_cast<hwc_procs_t*>(procs)); 278 ctx->hwc->vsync(disp, timestamp); 279} 280 281void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp, 282 int connected) { 283 cb_context* ctx = reinterpret_cast<cb_context*>( 284 const_cast<hwc_procs_t*>(procs)); 285 ctx->hwc->hotplug(disp, connected); 286} 287 288void HWComposer::invalidate() { 289 mFlinger->repaintEverything(); 290} 291 292void HWComposer::vsync(int disp, int64_t timestamp) { 293 ATRACE_INT("VSYNC", ++mVSyncCount&1); 294 mEventHandler.onVSyncReceived(disp, timestamp); 295 Mutex::Autolock _l(mLock); 296 mLastHwVSync = timestamp; 297} 298 299void HWComposer::hotplug(int disp, int connected) { 300 if (disp == HWC_DISPLAY_PRIMARY || disp >= HWC_NUM_DISPLAY_TYPES) { 301 ALOGE("hotplug event received for invalid display: disp=%d connected=%d", 302 disp, connected); 303 return; 304 } 305 queryDisplayProperties(disp); 306 mEventHandler.onHotplugReceived(disp, bool(connected)); 307} 308 309static const uint32_t DISPLAY_ATTRIBUTES[] = { 310 HWC_DISPLAY_VSYNC_PERIOD, 311 HWC_DISPLAY_WIDTH, 312 HWC_DISPLAY_HEIGHT, 313 HWC_DISPLAY_DPI_X, 314 HWC_DISPLAY_DPI_Y, 315 HWC_DISPLAY_NO_ATTRIBUTE, 316}; 317#define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0]) 318 319// http://developer.android.com/reference/android/util/DisplayMetrics.html 320#define ANDROID_DENSITY_TV 213 321#define ANDROID_DENSITY_XHIGH 320 322 323status_t HWComposer::queryDisplayProperties(int disp) { 324 325 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 326 327 // use zero as default value for unspecified attributes 328 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1]; 329 memset(values, 0, sizeof(values)); 330 331 uint32_t config; 332 size_t numConfigs = 1; 333 status_t err = mHwc->getDisplayConfigs(mHwc, disp, &config, &numConfigs); 334 if (err != NO_ERROR) { 335 // this can happen if an unpluggable display is not connected 336 mDisplayData[disp].connected = false; 337 return err; 338 } 339 340 err = mHwc->getDisplayAttributes(mHwc, disp, config, DISPLAY_ATTRIBUTES, values); 341 if (err != NO_ERROR) { 342 // we can't get this display's info. turn it off. 343 mDisplayData[disp].connected = false; 344 return err; 345 } 346 347 int32_t w = 0, h = 0; 348 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { 349 switch (DISPLAY_ATTRIBUTES[i]) { 350 case HWC_DISPLAY_VSYNC_PERIOD: 351 mDisplayData[disp].refresh = nsecs_t(values[i]); 352 break; 353 case HWC_DISPLAY_WIDTH: 354 mDisplayData[disp].width = values[i]; 355 break; 356 case HWC_DISPLAY_HEIGHT: 357 mDisplayData[disp].height = values[i]; 358 break; 359 case HWC_DISPLAY_DPI_X: 360 mDisplayData[disp].xdpi = values[i] / 1000.0f; 361 break; 362 case HWC_DISPLAY_DPI_Y: 363 mDisplayData[disp].ydpi = values[i] / 1000.0f; 364 break; 365 default: 366 ALOG_ASSERT(false, "unknown display attribute[%d] %#x", 367 i, DISPLAY_ATTRIBUTES[i]); 368 break; 369 } 370 } 371 372 // FIXME: what should we set the format to? 373 mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888; 374 mDisplayData[disp].connected = true; 375 if (mDisplayData[disp].xdpi == 0.0f || mDisplayData[disp].ydpi == 0.0f) { 376 // is there anything smarter we can do? 377 if (h >= 1080) { 378 mDisplayData[disp].xdpi = ANDROID_DENSITY_XHIGH; 379 mDisplayData[disp].ydpi = ANDROID_DENSITY_XHIGH; 380 } else { 381 mDisplayData[disp].xdpi = ANDROID_DENSITY_TV; 382 mDisplayData[disp].ydpi = ANDROID_DENSITY_TV; 383 } 384 } 385 return NO_ERROR; 386} 387 388int32_t HWComposer::allocateDisplayId() { 389 if (mAllocatedDisplayIDs.count() >= mNumDisplays) { 390 return NO_MEMORY; 391 } 392 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit(); 393 mAllocatedDisplayIDs.markBit(id); 394 return id; 395} 396 397status_t HWComposer::freeDisplayId(int32_t id) { 398 if (id < HWC_NUM_DISPLAY_TYPES) { 399 // cannot free the reserved IDs 400 return BAD_VALUE; 401 } 402 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 403 return BAD_INDEX; 404 } 405 mAllocatedDisplayIDs.clearBit(id); 406 return NO_ERROR; 407} 408 409nsecs_t HWComposer::getRefreshPeriod(int disp) const { 410 return mDisplayData[disp].refresh; 411} 412 413nsecs_t HWComposer::getRefreshTimestamp(int disp) const { 414 // this returns the last refresh timestamp. 415 // if the last one is not available, we estimate it based on 416 // the refresh period and whatever closest timestamp we have. 417 Mutex::Autolock _l(mLock); 418 nsecs_t now = systemTime(CLOCK_MONOTONIC); 419 return now - ((now - mLastHwVSync) % mDisplayData[disp].refresh); 420} 421 422uint32_t HWComposer::getWidth(int disp) const { 423 return mDisplayData[disp].width; 424} 425 426uint32_t HWComposer::getHeight(int disp) const { 427 return mDisplayData[disp].height; 428} 429 430uint32_t HWComposer::getFormat(int disp) const { 431 return mDisplayData[disp].format; 432} 433 434float HWComposer::getDpiX(int disp) const { 435 return mDisplayData[disp].xdpi; 436} 437 438float HWComposer::getDpiY(int disp) const { 439 return mDisplayData[disp].ydpi; 440} 441 442bool HWComposer::isConnected(int disp) const { 443 return mDisplayData[disp].connected; 444} 445 446void HWComposer::eventControl(int event, int enabled) { 447 status_t err = NO_ERROR; 448 if (mHwc) { 449 if (!mDebugForceFakeVSync) { 450 err = mHwc->eventControl(mHwc, 0, event, enabled); 451 // error here should not happen -- not sure what we should 452 // do if it does. 453 ALOGE_IF(err, "eventControl(%d, %d) failed %s", 454 event, enabled, strerror(-err)); 455 } 456 } 457 458 if (err == NO_ERROR && mVSyncThread != NULL) { 459 mVSyncThread->setEnabled(enabled); 460 } 461} 462 463status_t HWComposer::createWorkList(int32_t id, size_t numLayers) { 464 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 465 return BAD_INDEX; 466 } 467 468 if (mHwc) { 469 DisplayData& disp(mDisplayData[id]); 470 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 471 // we need space for the HWC_FRAMEBUFFER_TARGET 472 numLayers++; 473 } 474 if (disp.capacity < numLayers || disp.list == NULL) { 475 size_t size = sizeof(hwc_display_contents_1_t) 476 + numLayers * sizeof(hwc_layer_1_t); 477 free(disp.list); 478 disp.list = (hwc_display_contents_1_t*)malloc(size); 479 disp.capacity = numLayers; 480 } 481 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 482 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1]; 483 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t)); 484 const hwc_rect_t r = { 0, 0, disp.width, disp.height }; 485 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 486 disp.framebufferTarget->hints = 0; 487 disp.framebufferTarget->flags = 0; 488 disp.framebufferTarget->handle = disp.fbTargetHandle; 489 disp.framebufferTarget->transform = 0; 490 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT; 491 disp.framebufferTarget->sourceCrop = r; 492 disp.framebufferTarget->displayFrame = r; 493 disp.framebufferTarget->visibleRegionScreen.numRects = 1; 494 disp.framebufferTarget->visibleRegionScreen.rects = 495 &disp.framebufferTarget->displayFrame; 496 disp.framebufferTarget->acquireFenceFd = -1; 497 disp.framebufferTarget->releaseFenceFd = -1; 498 } 499 disp.list->retireFenceFd = -1; 500 disp.list->flags = HWC_GEOMETRY_CHANGED; 501 disp.list->numHwLayers = numLayers; 502 } 503 return NO_ERROR; 504} 505 506status_t HWComposer::setFramebufferTarget(int32_t id, 507 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) { 508 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 509 return BAD_INDEX; 510 } 511 DisplayData& disp(mDisplayData[id]); 512 if (!disp.framebufferTarget) { 513 // this should never happen, but apparently eglCreateWindowSurface() 514 // triggers a SurfaceTextureClient::queueBuffer() on some 515 // devices (!?) -- log and ignore. 516 ALOGE("HWComposer: framebufferTarget is null"); 517// CallStack stack; 518// stack.update(); 519// stack.dump(""); 520 return NO_ERROR; 521 } 522 523 int acquireFenceFd = -1; 524 if (acquireFence != NULL) { 525 acquireFenceFd = acquireFence->dup(); 526 } 527 528 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd); 529 disp.fbTargetHandle = buf->handle; 530 disp.framebufferTarget->handle = disp.fbTargetHandle; 531 disp.framebufferTarget->acquireFenceFd = acquireFenceFd; 532 return NO_ERROR; 533} 534 535status_t HWComposer::prepare() { 536 for (size_t i=0 ; i<mNumDisplays ; i++) { 537 DisplayData& disp(mDisplayData[i]); 538 if (disp.framebufferTarget) { 539 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET 540 // DO NOT reset the handle field to NULL, because it's possible 541 // that we have nothing to redraw (eg: eglSwapBuffers() not called) 542 // in which case, we should continue to use the same buffer. 543 LOG_FATAL_IF(disp.list == NULL); 544 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 545 } 546 if (!disp.connected && disp.list != NULL) { 547 ALOGW("WARNING: disp %d: connected, non-null list, layers=%d", 548 i, disp.list->numHwLayers); 549 } 550 mLists[i] = disp.list; 551 if (mLists[i]) { 552 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 553 mLists[i]->outbuf = NULL; 554 mLists[i]->outbufAcquireFenceFd = -1; 555 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 556 // garbage data to catch improper use 557 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF; 558 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF; 559 } else { 560 mLists[i]->dpy = EGL_NO_DISPLAY; 561 mLists[i]->sur = EGL_NO_SURFACE; 562 } 563 } 564 } 565 566 int err = mHwc->prepare(mHwc, mNumDisplays, mLists); 567 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err)); 568 569 if (err == NO_ERROR) { 570 // here we're just making sure that "skip" layers are set 571 // to HWC_FRAMEBUFFER and we're also counting how many layers 572 // we have of each type. 573 for (size_t i=0 ; i<mNumDisplays ; i++) { 574 DisplayData& disp(mDisplayData[i]); 575 disp.hasFbComp = false; 576 disp.hasOvComp = false; 577 if (disp.list) { 578 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 579 hwc_layer_1_t& l = disp.list->hwLayers[i]; 580 581 //ALOGD("prepare: %d, type=%d, handle=%p", 582 // i, l.compositionType, l.handle); 583 584 if (l.flags & HWC_SKIP_LAYER) { 585 l.compositionType = HWC_FRAMEBUFFER; 586 } 587 if (l.compositionType == HWC_FRAMEBUFFER) { 588 disp.hasFbComp = true; 589 } 590 if (l.compositionType == HWC_OVERLAY) { 591 disp.hasOvComp = true; 592 } 593 } 594 } 595 } 596 } 597 return (status_t)err; 598} 599 600bool HWComposer::hasHwcComposition(int32_t id) const { 601 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 602 return false; 603 return mDisplayData[id].hasOvComp; 604} 605 606bool HWComposer::hasGlesComposition(int32_t id) const { 607 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 608 return false; 609 return mDisplayData[id].hasFbComp; 610} 611 612int HWComposer::getAndResetReleaseFenceFd(int32_t id) { 613 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 614 return BAD_INDEX; 615 616 int fd = INVALID_OPERATION; 617 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 618 const DisplayData& disp(mDisplayData[id]); 619 if (disp.framebufferTarget) { 620 fd = disp.framebufferTarget->releaseFenceFd; 621 disp.framebufferTarget->acquireFenceFd = -1; 622 disp.framebufferTarget->releaseFenceFd = -1; 623 } 624 } 625 return fd; 626} 627 628status_t HWComposer::commit() { 629 int err = NO_ERROR; 630 if (mHwc) { 631 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 632 // On version 1.0, the OpenGL ES target surface is communicated 633 // by the (dpy, sur) fields and we are guaranteed to have only 634 // a single display. 635 mLists[0]->dpy = eglGetCurrentDisplay(); 636 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW); 637 } 638 639 err = mHwc->set(mHwc, mNumDisplays, mLists); 640 641 for (size_t i=0 ; i<mNumDisplays ; i++) { 642 DisplayData& disp(mDisplayData[i]); 643 if (disp.list) { 644 if (disp.list->retireFenceFd != -1) { 645 close(disp.list->retireFenceFd); 646 disp.list->retireFenceFd = -1; 647 } 648 disp.list->flags &= ~HWC_GEOMETRY_CHANGED; 649 } 650 } 651 } 652 return (status_t)err; 653} 654 655status_t HWComposer::release(int disp) const { 656 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES); 657 if (mHwc) { 658 mHwc->eventControl(mHwc, disp, HWC_EVENT_VSYNC, 0); 659 return (status_t)mHwc->blank(mHwc, disp, 1); 660 } 661 return NO_ERROR; 662} 663 664status_t HWComposer::acquire(int disp) const { 665 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES); 666 if (mHwc) { 667 return (status_t)mHwc->blank(mHwc, disp, 0); 668 } 669 return NO_ERROR; 670} 671 672void HWComposer::disconnectDisplay(int disp) { 673 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY || 674 disp >= HWC_NUM_DISPLAY_TYPES); 675 DisplayData& dd(mDisplayData[disp]); 676 if (dd.list != NULL) { 677 free(dd.list); 678 dd.list = NULL; 679 dd.framebufferTarget = NULL; // points into dd.list 680 } 681} 682 683int HWComposer::getVisualID() const { 684 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 685 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 686 // is supported by the implementation. we can only be in this case 687 // if we have HWC 1.1 688 return HAL_PIXEL_FORMAT_RGBA_8888; 689 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 690 } else { 691 return mFbDev->format; 692 } 693} 694 695bool HWComposer::supportsFramebufferTarget() const { 696 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 697} 698 699int HWComposer::fbPost(int32_t id, 700 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 701 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 702 return setFramebufferTarget(id, acquireFence, buffer); 703 } else { 704 if (acquireFence != NULL) { 705 acquireFence->waitForever(1000, "HWComposer::fbPost"); 706 } 707 return mFbDev->post(mFbDev, buffer->handle); 708 } 709} 710 711int HWComposer::fbCompositionComplete() { 712 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 713 return NO_ERROR; 714 715 if (mFbDev->compositionComplete) { 716 return mFbDev->compositionComplete(mFbDev); 717 } else { 718 return INVALID_OPERATION; 719 } 720} 721 722void HWComposer::fbDump(String8& result) { 723 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) { 724 const size_t SIZE = 4096; 725 char buffer[SIZE]; 726 mFbDev->dump(mFbDev, buffer, SIZE); 727 result.append(buffer); 728 } 729} 730 731/* 732 * Helper template to implement a concrete HWCLayer 733 * This holds the pointer to the concrete hwc layer type 734 * and implements the "iterable" side of HWCLayer. 735 */ 736template<typename CONCRETE, typename HWCTYPE> 737class Iterable : public HWComposer::HWCLayer { 738protected: 739 HWCTYPE* const mLayerList; 740 HWCTYPE* mCurrentLayer; 741 Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { } 742 inline HWCTYPE const * getLayer() const { return mCurrentLayer; } 743 inline HWCTYPE* getLayer() { return mCurrentLayer; } 744 virtual ~Iterable() { } 745private: 746 // returns a copy of ourselves 747 virtual HWComposer::HWCLayer* dup() { 748 return new CONCRETE( static_cast<const CONCRETE&>(*this) ); 749 } 750 virtual status_t setLayer(size_t index) { 751 mCurrentLayer = &mLayerList[index]; 752 return NO_ERROR; 753 } 754}; 755 756/* 757 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0. 758 * This implements the HWCLayer side of HWCIterableLayer. 759 */ 760class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> { 761public: 762 HWCLayerVersion1(hwc_layer_1_t* layer) 763 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer) { } 764 765 virtual int32_t getCompositionType() const { 766 return getLayer()->compositionType; 767 } 768 virtual uint32_t getHints() const { 769 return getLayer()->hints; 770 } 771 virtual int getAndResetReleaseFenceFd() { 772 int fd = getLayer()->releaseFenceFd; 773 getLayer()->releaseFenceFd = -1; 774 return fd; 775 } 776 virtual void setAcquireFenceFd(int fenceFd) { 777 getLayer()->acquireFenceFd = fenceFd; 778 } 779 780 virtual void setDefaultState() { 781 getLayer()->compositionType = HWC_FRAMEBUFFER; 782 getLayer()->hints = 0; 783 getLayer()->flags = HWC_SKIP_LAYER; 784 getLayer()->handle = 0; 785 getLayer()->transform = 0; 786 getLayer()->blending = HWC_BLENDING_NONE; 787 getLayer()->visibleRegionScreen.numRects = 0; 788 getLayer()->visibleRegionScreen.rects = NULL; 789 getLayer()->acquireFenceFd = -1; 790 getLayer()->releaseFenceFd = -1; 791 } 792 virtual void setSkip(bool skip) { 793 if (skip) { 794 getLayer()->flags |= HWC_SKIP_LAYER; 795 } else { 796 getLayer()->flags &= ~HWC_SKIP_LAYER; 797 } 798 } 799 virtual void setBlending(uint32_t blending) { 800 getLayer()->blending = blending; 801 } 802 virtual void setTransform(uint32_t transform) { 803 getLayer()->transform = transform; 804 } 805 virtual void setFrame(const Rect& frame) { 806 reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame; 807 } 808 virtual void setCrop(const Rect& crop) { 809 reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop; 810 } 811 virtual void setVisibleRegionScreen(const Region& reg) { 812 // Region::getSharedBuffer creates a reference to the underlying 813 // SharedBuffer of this Region, this reference is freed 814 // in onDisplayed() 815 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 816 SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects); 817 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data()); 818 } 819 virtual void setBuffer(const sp<GraphicBuffer>& buffer) { 820 if (buffer == 0 || buffer->handle == 0) { 821 getLayer()->compositionType = HWC_FRAMEBUFFER; 822 getLayer()->flags |= HWC_SKIP_LAYER; 823 getLayer()->handle = 0; 824 } else { 825 getLayer()->handle = buffer->handle; 826 } 827 } 828 virtual void onDisplayed() { 829 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 830 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects); 831 if (sb) { 832 sb->release(); 833 // not technically needed but safer 834 visibleRegion.numRects = 0; 835 visibleRegion.rects = NULL; 836 } 837 838 getLayer()->acquireFenceFd = -1; 839 } 840}; 841 842/* 843 * returns an iterator initialized at a given index in the layer list 844 */ 845HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) { 846 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 847 return LayerListIterator(); 848 } 849 const DisplayData& disp(mDisplayData[id]); 850 if (!mHwc || !disp.list || index > disp.list->numHwLayers) { 851 return LayerListIterator(); 852 } 853 return LayerListIterator(new HWCLayerVersion1(disp.list->hwLayers), index); 854} 855 856/* 857 * returns an iterator on the beginning of the layer list 858 */ 859HWComposer::LayerListIterator HWComposer::begin(int32_t id) { 860 return getLayerIterator(id, 0); 861} 862 863/* 864 * returns an iterator on the end of the layer list 865 */ 866HWComposer::LayerListIterator HWComposer::end(int32_t id) { 867 size_t numLayers = 0; 868 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) { 869 const DisplayData& disp(mDisplayData[id]); 870 if (mHwc && disp.list) { 871 numLayers = disp.list->numHwLayers; 872 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 873 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET, 874 // which we ignore when iterating through the layer list. 875 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id); 876 if (numLayers) { 877 numLayers--; 878 } 879 } 880 } 881 } 882 return getLayerIterator(id, numLayers); 883} 884 885void HWComposer::dump(String8& result, char* buffer, size_t SIZE, 886 const Vector< sp<LayerBase> >& visibleLayersSortedByZ) const { 887 if (mHwc) { 888 result.appendFormat("Hardware Composer state (version %8x):\n", hwcApiVersion(mHwc)); 889 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync); 890 for (size_t i=0 ; i<mNumDisplays ; i++) { 891 const DisplayData& disp(mDisplayData[i]); 892 893 if (disp.connected) { 894 result.appendFormat( 895 " Display[%d] : %ux%u, xdpi=%f, ydpi=%f, refresh=%lld\n", 896 i, disp.width, disp.height, disp.xdpi, disp.ydpi, disp.refresh); 897 } 898 899 if (disp.list && disp.connected) { 900 result.appendFormat( 901 " numHwLayers=%u, flags=%08x\n", 902 disp.list->numHwLayers, disp.list->flags); 903 904 result.append( 905 " type | handle | hints | flags | tr | blend | format | source crop | frame name \n" 906 "------------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n"); 907 // " __________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____] 908 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 909 const hwc_layer_1_t&l = disp.list->hwLayers[i]; 910 int32_t format = -1; 911 String8 name("unknown"); 912 if (i < visibleLayersSortedByZ.size()) { 913 const sp<LayerBase>& layer(visibleLayersSortedByZ[i]); 914 if (layer->getLayer() != NULL) { 915 const sp<GraphicBuffer>& buffer( 916 layer->getLayer()->getActiveBuffer()); 917 if (buffer != NULL) { 918 format = buffer->getPixelFormat(); 919 } 920 } 921 name = layer->getName(); 922 } 923 924 int type = l.compositionType; 925 if (type == HWC_FRAMEBUFFER_TARGET) { 926 name = "HWC_FRAMEBUFFER_TARGET"; 927 format = disp.format; 928 } 929 930 static char const* compositionTypeName[] = { 931 "GLES", 932 "HWC", 933 "BACKGROUND", 934 "FB TARGET", 935 "UNKNOWN"}; 936 if (type >= NELEM(compositionTypeName)) 937 type = NELEM(compositionTypeName) - 1; 938 939 result.appendFormat( 940 " %10s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n", 941 compositionTypeName[type], 942 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format, 943 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, 944 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, 945 name.string()); 946 } 947 } 948 } 949 } 950 951 if (mHwc && mHwc->dump) { 952 mHwc->dump(mHwc, buffer, SIZE); 953 result.append(buffer); 954 } 955} 956 957// --------------------------------------------------------------------------- 958 959HWComposer::VSyncThread::VSyncThread(HWComposer& hwc) 960 : mHwc(hwc), mEnabled(false), 961 mNextFakeVSync(0), 962 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY)) 963{ 964} 965 966void HWComposer::VSyncThread::setEnabled(bool enabled) { 967 Mutex::Autolock _l(mLock); 968 mEnabled = enabled; 969 mCondition.signal(); 970} 971 972void HWComposer::VSyncThread::onFirstRef() { 973 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE); 974} 975 976bool HWComposer::VSyncThread::threadLoop() { 977 { // scope for lock 978 Mutex::Autolock _l(mLock); 979 while (!mEnabled) { 980 mCondition.wait(mLock); 981 } 982 } 983 984 const nsecs_t period = mRefreshPeriod; 985 const nsecs_t now = systemTime(CLOCK_MONOTONIC); 986 nsecs_t next_vsync = mNextFakeVSync; 987 nsecs_t sleep = next_vsync - now; 988 if (sleep < 0) { 989 // we missed, find where the next vsync should be 990 sleep = (period - ((now - next_vsync) % period)); 991 next_vsync = now + sleep; 992 } 993 mNextFakeVSync = next_vsync + period; 994 995 struct timespec spec; 996 spec.tv_sec = next_vsync / 1000000000; 997 spec.tv_nsec = next_vsync % 1000000000; 998 999 int err; 1000 do { 1001 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL); 1002 } while (err<0 && errno == EINTR); 1003 1004 if (err == 0) { 1005 mHwc.mEventHandler.onVSyncReceived(0, next_vsync); 1006 } 1007 1008 return true; 1009} 1010 1011// --------------------------------------------------------------------------- 1012}; // namespace android 1013