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 #include <inttypes.h> 20 #include <math.h> 21 #include <stdint.h> 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include <string.h> 25 #include <sys/types.h> 26 27 #include <utils/Errors.h> 28 #include <utils/misc.h> 29 #include <utils/NativeHandle.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 <android/configuration.h> 41 42 #include <cutils/properties.h> 43 #include <log/log.h> 44 45 #include <system/graphics.h> 46 47 #include "HWComposer.h" 48 49 #include "../Layer.h" // needed only for debugging 50 #include "../SurfaceFlinger.h" 51 52 namespace android { 53 54 #define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION 55 56 static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) { 57 uint32_t hwcVersion = hwc->common.version; 58 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK; 59 } 60 61 static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) { 62 uint32_t hwcVersion = hwc->common.version; 63 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK; 64 } 65 66 static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc, 67 uint32_t version) { 68 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK); 69 } 70 71 // --------------------------------------------------------------------------- 72 73 struct HWComposer::cb_context { 74 struct callbacks : public hwc_procs_t { 75 // these are here to facilitate the transition when adding 76 // new callbacks (an implementation can check for NULL before 77 // calling a new callback). 78 void (*zero[4])(void); 79 }; 80 callbacks procs; 81 HWComposer* hwc; 82 }; 83 84 // --------------------------------------------------------------------------- 85 86 HWComposer::HWComposer( 87 const sp<SurfaceFlinger>& flinger, 88 EventHandler& handler) 89 : mFlinger(flinger), 90 mFbDev(0), mHwc(0), mNumDisplays(1), 91 mCBContext(new cb_context), 92 mEventHandler(handler), 93 mDebugForceFakeVSync(false) 94 { 95 for (size_t i =0 ; i<MAX_HWC_DISPLAYS ; i++) { 96 mLists[i] = 0; 97 } 98 99 for (size_t i=0 ; i<HWC_NUM_PHYSICAL_DISPLAY_TYPES ; i++) { 100 mLastHwVSync[i] = 0; 101 mVSyncCounts[i] = 0; 102 } 103 104 char value[PROPERTY_VALUE_MAX]; 105 property_get("debug.sf.no_hw_vsync", value, "0"); 106 mDebugForceFakeVSync = atoi(value); 107 108 bool needVSyncThread = true; 109 110 // Note: some devices may insist that the FB HAL be opened before HWC. 111 int fberr = loadFbHalModule(); 112 loadHwcModule(); 113 114 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 115 // close FB HAL if we don't needed it. 116 // FIXME: this is temporary until we're not forced to open FB HAL 117 // before HWC. 118 framebuffer_close(mFbDev); 119 mFbDev = NULL; 120 } 121 122 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory. 123 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 124 && !mFbDev) { 125 ALOGE("ERROR: failed to open framebuffer (%s), aborting", 126 strerror(-fberr)); 127 abort(); 128 } 129 130 // these display IDs are always reserved 131 for (size_t i=0 ; i<NUM_BUILTIN_DISPLAYS ; i++) { 132 mAllocatedDisplayIDs.markBit(i); 133 } 134 135 if (mHwc) { 136 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER, 137 (hwcApiVersion(mHwc) >> 24) & 0xff, 138 (hwcApiVersion(mHwc) >> 16) & 0xff); 139 if (mHwc->registerProcs) { 140 mCBContext->hwc = this; 141 mCBContext->procs.invalidate = &hook_invalidate; 142 mCBContext->procs.vsync = &hook_vsync; 143 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 144 mCBContext->procs.hotplug = &hook_hotplug; 145 else 146 mCBContext->procs.hotplug = NULL; 147 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero)); 148 mHwc->registerProcs(mHwc, &mCBContext->procs); 149 } 150 151 // don't need a vsync thread if we have a hardware composer 152 needVSyncThread = false; 153 // always turn vsync off when we start 154 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 155 156 // the number of displays we actually have depends on the 157 // hw composer version 158 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { 159 // 1.3 adds support for virtual displays 160 mNumDisplays = MAX_HWC_DISPLAYS; 161 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 162 // 1.1 adds support for multiple displays 163 mNumDisplays = NUM_BUILTIN_DISPLAYS; 164 } else { 165 mNumDisplays = 1; 166 } 167 } 168 169 if (mFbDev) { 170 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)), 171 "should only have fbdev if no hwc or hwc is 1.0"); 172 173 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]); 174 disp.connected = true; 175 disp.format = mFbDev->format; 176 DisplayConfig config = DisplayConfig(); 177 config.width = mFbDev->width; 178 config.height = mFbDev->height; 179 config.xdpi = mFbDev->xdpi; 180 config.ydpi = mFbDev->ydpi; 181 config.refresh = nsecs_t(1e9 / mFbDev->fps); 182 disp.configs.push_back(config); 183 disp.currentConfig = 0; 184 } else if (mHwc) { 185 // here we're guaranteed to have at least HWC 1.1 186 for (size_t i =0 ; i<NUM_BUILTIN_DISPLAYS ; i++) { 187 queryDisplayProperties(i); 188 } 189 } 190 191 if (needVSyncThread) { 192 // we don't have VSYNC support, we need to fake it 193 mVSyncThread = new VSyncThread(*this); 194 } 195 } 196 197 HWComposer::~HWComposer() { 198 if (mHwc) { 199 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); 200 } 201 if (mVSyncThread != NULL) { 202 mVSyncThread->requestExitAndWait(); 203 } 204 if (mHwc) { 205 hwc_close_1(mHwc); 206 } 207 if (mFbDev) { 208 framebuffer_close(mFbDev); 209 } 210 delete mCBContext; 211 } 212 213 // Load and prepare the hardware composer module. Sets mHwc. 214 void HWComposer::loadHwcModule() 215 { 216 hw_module_t const* module; 217 218 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) { 219 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID); 220 return; 221 } 222 223 int err = hwc_open_1(module, &mHwc); 224 if (err) { 225 ALOGE("%s device failed to initialize (%s)", 226 HWC_HARDWARE_COMPOSER, strerror(-err)); 227 return; 228 } 229 230 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) || 231 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION || 232 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) { 233 ALOGE("%s device version %#x unsupported, will not be used", 234 HWC_HARDWARE_COMPOSER, mHwc->common.version); 235 hwc_close_1(mHwc); 236 mHwc = NULL; 237 return; 238 } 239 } 240 241 // Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev. 242 int HWComposer::loadFbHalModule() 243 { 244 hw_module_t const* module; 245 246 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module); 247 if (err != 0) { 248 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID); 249 return err; 250 } 251 252 return framebuffer_open(module, &mFbDev); 253 } 254 255 status_t HWComposer::initCheck() const { 256 return mHwc ? NO_ERROR : NO_INIT; 257 } 258 259 void HWComposer::hook_invalidate(const struct hwc_procs* procs) { 260 cb_context* ctx = reinterpret_cast<cb_context*>( 261 const_cast<hwc_procs_t*>(procs)); 262 ctx->hwc->invalidate(); 263 } 264 265 void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp, 266 int64_t timestamp) { 267 cb_context* ctx = reinterpret_cast<cb_context*>( 268 const_cast<hwc_procs_t*>(procs)); 269 ctx->hwc->vsync(disp, timestamp); 270 } 271 272 void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp, 273 int connected) { 274 cb_context* ctx = reinterpret_cast<cb_context*>( 275 const_cast<hwc_procs_t*>(procs)); 276 ctx->hwc->hotplug(disp, connected); 277 } 278 279 void HWComposer::invalidate() { 280 mEventHandler.onInvalidateReceived(this); 281 } 282 283 void HWComposer::vsync(int disp, int64_t timestamp) { 284 if (uint32_t(disp) < HWC_NUM_PHYSICAL_DISPLAY_TYPES) { 285 { 286 Mutex::Autolock _l(mLock); 287 288 // There have been reports of HWCs that signal several vsync events 289 // with the same timestamp when turning the display off and on. This 290 // is a bug in the HWC implementation, but filter the extra events 291 // out here so they don't cause havoc downstream. 292 if (timestamp == mLastHwVSync[disp]) { 293 ALOGW("Ignoring duplicate VSYNC event from HWC (t=%" PRId64 ")", 294 timestamp); 295 return; 296 } 297 298 mLastHwVSync[disp] = timestamp; 299 } 300 301 char tag[16]; 302 snprintf(tag, sizeof(tag), "HW_VSYNC_%1u", disp); 303 ATRACE_INT(tag, ++mVSyncCounts[disp] & 1); 304 305 mEventHandler.onVSyncReceived(this, disp, timestamp); 306 } 307 } 308 309 void HWComposer::hotplug(int disp, int connected) { 310 if (disp >= VIRTUAL_DISPLAY_ID_BASE) { 311 ALOGE("hotplug event received for invalid display: disp=%d connected=%d", 312 disp, connected); 313 return; 314 } 315 queryDisplayProperties(disp); 316 // Do not teardown or recreate the primary display 317 if (disp != HWC_DISPLAY_PRIMARY) { 318 mEventHandler.onHotplugReceived(this, disp, bool(connected)); 319 } 320 } 321 322 static float getDefaultDensity(uint32_t width, uint32_t height) { 323 // Default density is based on TVs: 1080p displays get XHIGH density, 324 // lower-resolution displays get TV density. Maybe eventually we'll need 325 // to update it for 4K displays, though hopefully those just report 326 // accurate DPI information to begin with. This is also used for virtual 327 // displays and even primary displays with older hwcomposers, so be 328 // careful about orientation. 329 330 uint32_t h = width < height ? width : height; 331 if (h >= 1080) return ACONFIGURATION_DENSITY_XHIGH; 332 else return ACONFIGURATION_DENSITY_TV; 333 } 334 335 static const uint32_t DISPLAY_ATTRIBUTES[] = { 336 HWC_DISPLAY_VSYNC_PERIOD, 337 HWC_DISPLAY_WIDTH, 338 HWC_DISPLAY_HEIGHT, 339 HWC_DISPLAY_DPI_X, 340 HWC_DISPLAY_DPI_Y, 341 HWC_DISPLAY_COLOR_TRANSFORM, 342 HWC_DISPLAY_NO_ATTRIBUTE, 343 }; 344 #define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0]) 345 346 static const uint32_t PRE_HWC15_DISPLAY_ATTRIBUTES[] = { 347 HWC_DISPLAY_VSYNC_PERIOD, 348 HWC_DISPLAY_WIDTH, 349 HWC_DISPLAY_HEIGHT, 350 HWC_DISPLAY_DPI_X, 351 HWC_DISPLAY_DPI_Y, 352 HWC_DISPLAY_NO_ATTRIBUTE, 353 }; 354 355 status_t HWComposer::queryDisplayProperties(int disp) { 356 357 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 358 359 // use zero as default value for unspecified attributes 360 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1]; 361 memset(values, 0, sizeof(values)); 362 363 const size_t MAX_NUM_CONFIGS = 128; 364 uint32_t configs[MAX_NUM_CONFIGS] = {0}; 365 size_t numConfigs = MAX_NUM_CONFIGS; 366 status_t err = mHwc->getDisplayConfigs(mHwc, disp, configs, &numConfigs); 367 if (err != NO_ERROR) { 368 // this can happen if an unpluggable display is not connected 369 mDisplayData[disp].connected = false; 370 return err; 371 } 372 373 mDisplayData[disp].currentConfig = 0; 374 for (size_t c = 0; c < numConfigs; ++c) { 375 err = mHwc->getDisplayAttributes(mHwc, disp, configs[c], 376 DISPLAY_ATTRIBUTES, values); 377 // If this is a pre-1.5 HWC, it may not know about color transform, so 378 // try again with a smaller set of attributes 379 if (err != NO_ERROR) { 380 err = mHwc->getDisplayAttributes(mHwc, disp, configs[c], 381 PRE_HWC15_DISPLAY_ATTRIBUTES, values); 382 } 383 if (err != NO_ERROR) { 384 // we can't get this display's info. turn it off. 385 mDisplayData[disp].connected = false; 386 return err; 387 } 388 389 DisplayConfig config = DisplayConfig(); 390 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { 391 switch (DISPLAY_ATTRIBUTES[i]) { 392 case HWC_DISPLAY_VSYNC_PERIOD: 393 config.refresh = nsecs_t(values[i]); 394 break; 395 case HWC_DISPLAY_WIDTH: 396 config.width = values[i]; 397 break; 398 case HWC_DISPLAY_HEIGHT: 399 config.height = values[i]; 400 break; 401 case HWC_DISPLAY_DPI_X: 402 config.xdpi = values[i] / 1000.0f; 403 break; 404 case HWC_DISPLAY_DPI_Y: 405 config.ydpi = values[i] / 1000.0f; 406 break; 407 case HWC_DISPLAY_COLOR_TRANSFORM: 408 config.colorMode = static_cast<android_color_mode_t>(values[i]); 409 break; 410 default: 411 ALOG_ASSERT(false, "unknown display attribute[%zu] %#x", 412 i, DISPLAY_ATTRIBUTES[i]); 413 break; 414 } 415 } 416 417 if (config.xdpi == 0.0f || config.ydpi == 0.0f) { 418 float dpi = getDefaultDensity(config.width, config.height); 419 config.xdpi = dpi; 420 config.ydpi = dpi; 421 } 422 423 mDisplayData[disp].configs.push_back(config); 424 } 425 426 // FIXME: what should we set the format to? 427 mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888; 428 mDisplayData[disp].connected = true; 429 return NO_ERROR; 430 } 431 432 status_t HWComposer::setVirtualDisplayProperties(int32_t id, 433 uint32_t w, uint32_t h, uint32_t format) { 434 if (id < VIRTUAL_DISPLAY_ID_BASE || id >= int32_t(mNumDisplays) || 435 !mAllocatedDisplayIDs.hasBit(id)) { 436 return BAD_INDEX; 437 } 438 size_t configId = mDisplayData[id].currentConfig; 439 mDisplayData[id].format = format; 440 DisplayConfig& config = mDisplayData[id].configs.editItemAt(configId); 441 config.width = w; 442 config.height = h; 443 config.xdpi = config.ydpi = getDefaultDensity(w, h); 444 return NO_ERROR; 445 } 446 447 int32_t HWComposer::allocateDisplayId() { 448 if (mAllocatedDisplayIDs.count() >= mNumDisplays) { 449 return NO_MEMORY; 450 } 451 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit(); 452 mAllocatedDisplayIDs.markBit(id); 453 mDisplayData[id].connected = true; 454 mDisplayData[id].configs.resize(1); 455 mDisplayData[id].currentConfig = 0; 456 return id; 457 } 458 459 status_t HWComposer::freeDisplayId(int32_t id) { 460 if (id < NUM_BUILTIN_DISPLAYS) { 461 // cannot free the reserved IDs 462 return BAD_VALUE; 463 } 464 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 465 return BAD_INDEX; 466 } 467 mAllocatedDisplayIDs.clearBit(id); 468 mDisplayData[id].connected = false; 469 return NO_ERROR; 470 } 471 472 nsecs_t HWComposer::getRefreshTimestamp(int disp) const { 473 // this returns the last refresh timestamp. 474 // if the last one is not available, we estimate it based on 475 // the refresh period and whatever closest timestamp we have. 476 Mutex::Autolock _l(mLock); 477 nsecs_t now = systemTime(CLOCK_MONOTONIC); 478 size_t configId = mDisplayData[disp].currentConfig; 479 return now - ((now - mLastHwVSync[disp]) % 480 mDisplayData[disp].configs[configId].refresh); 481 } 482 483 sp<Fence> HWComposer::getDisplayFence(int disp) const { 484 return mDisplayData[disp].lastDisplayFence; 485 } 486 487 uint32_t HWComposer::getFormat(int disp) const { 488 if (static_cast<uint32_t>(disp) >= MAX_HWC_DISPLAYS || !mAllocatedDisplayIDs.hasBit(disp)) { 489 return HAL_PIXEL_FORMAT_RGBA_8888; 490 } else { 491 return mDisplayData[disp].format; 492 } 493 } 494 495 bool HWComposer::isConnected(int disp) const { 496 return mDisplayData[disp].connected; 497 } 498 499 uint32_t HWComposer::getWidth(int disp) const { 500 size_t currentConfig = mDisplayData[disp].currentConfig; 501 return mDisplayData[disp].configs[currentConfig].width; 502 } 503 504 uint32_t HWComposer::getHeight(int disp) const { 505 size_t currentConfig = mDisplayData[disp].currentConfig; 506 return mDisplayData[disp].configs[currentConfig].height; 507 } 508 509 float HWComposer::getDpiX(int disp) const { 510 size_t currentConfig = mDisplayData[disp].currentConfig; 511 return mDisplayData[disp].configs[currentConfig].xdpi; 512 } 513 514 float HWComposer::getDpiY(int disp) const { 515 size_t currentConfig = mDisplayData[disp].currentConfig; 516 return mDisplayData[disp].configs[currentConfig].ydpi; 517 } 518 519 nsecs_t HWComposer::getRefreshPeriod(int disp) const { 520 size_t currentConfig = mDisplayData[disp].currentConfig; 521 return mDisplayData[disp].configs[currentConfig].refresh; 522 } 523 524 android_color_mode_t HWComposer::getColorMode(int disp) const { 525 size_t currentConfig = mDisplayData[disp].currentConfig; 526 return mDisplayData[disp].configs[currentConfig].colorMode; 527 } 528 529 const Vector<HWComposer::DisplayConfig>& HWComposer::getConfigs(int disp) const { 530 return mDisplayData[disp].configs; 531 } 532 533 size_t HWComposer::getCurrentConfig(int disp) const { 534 return mDisplayData[disp].currentConfig; 535 } 536 537 void HWComposer::eventControl(int disp, int event, int enabled) { 538 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) { 539 ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)", 540 event, disp, enabled); 541 return; 542 } 543 if (event != EVENT_VSYNC) { 544 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)", 545 event, disp, enabled); 546 return; 547 } 548 status_t err = NO_ERROR; 549 if (mHwc && !mDebugForceFakeVSync) { 550 // NOTE: we use our own internal lock here because we have to call 551 // into the HWC with the lock held, and we want to make sure 552 // that even if HWC blocks (which it shouldn't), it won't 553 // affect other threads. 554 Mutex::Autolock _l(mEventControlLock); 555 const int32_t eventBit = 1UL << event; 556 const int32_t newValue = enabled ? eventBit : 0; 557 const int32_t oldValue = mDisplayData[disp].events & eventBit; 558 if (newValue != oldValue) { 559 ATRACE_CALL(); 560 err = mHwc->eventControl(mHwc, disp, event, enabled); 561 if (!err) { 562 int32_t& events(mDisplayData[disp].events); 563 events = (events & ~eventBit) | newValue; 564 565 char tag[16]; 566 snprintf(tag, sizeof(tag), "HW_VSYNC_ON_%1u", disp); 567 ATRACE_INT(tag, enabled); 568 } 569 } 570 // error here should not happen -- not sure what we should 571 // do if it does. 572 ALOGE_IF(err, "eventControl(%d, %d) failed %s", 573 event, enabled, strerror(-err)); 574 } 575 576 if (err == NO_ERROR && mVSyncThread != NULL) { 577 mVSyncThread->setEnabled(enabled); 578 } 579 } 580 581 status_t HWComposer::createWorkList(int32_t id, size_t numLayers) { 582 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 583 return BAD_INDEX; 584 } 585 586 if (mHwc) { 587 DisplayData& disp(mDisplayData[id]); 588 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 589 // we need space for the HWC_FRAMEBUFFER_TARGET 590 numLayers++; 591 } 592 if (disp.capacity < numLayers || disp.list == NULL) { 593 size_t size = sizeof(hwc_display_contents_1_t) 594 + numLayers * sizeof(hwc_layer_1_t); 595 free(disp.list); 596 disp.list = (hwc_display_contents_1_t*)malloc(size); 597 disp.capacity = numLayers; 598 } 599 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 600 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1]; 601 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t)); 602 const DisplayConfig& currentConfig = 603 disp.configs[disp.currentConfig]; 604 const hwc_rect_t r = { 0, 0, 605 (int) currentConfig.width, (int) currentConfig.height }; 606 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 607 disp.framebufferTarget->hints = 0; 608 disp.framebufferTarget->flags = 0; 609 disp.framebufferTarget->handle = disp.fbTargetHandle; 610 disp.framebufferTarget->transform = 0; 611 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT; 612 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { 613 disp.framebufferTarget->sourceCropf.left = 0; 614 disp.framebufferTarget->sourceCropf.top = 0; 615 disp.framebufferTarget->sourceCropf.right = 616 currentConfig.width; 617 disp.framebufferTarget->sourceCropf.bottom = 618 currentConfig.height; 619 } else { 620 disp.framebufferTarget->sourceCrop = r; 621 } 622 disp.framebufferTarget->displayFrame = r; 623 disp.framebufferTarget->visibleRegionScreen.numRects = 1; 624 disp.framebufferTarget->visibleRegionScreen.rects = 625 &disp.framebufferTarget->displayFrame; 626 disp.framebufferTarget->acquireFenceFd = -1; 627 disp.framebufferTarget->releaseFenceFd = -1; 628 disp.framebufferTarget->planeAlpha = 0xFF; 629 } 630 disp.list->retireFenceFd = -1; 631 disp.list->flags = HWC_GEOMETRY_CHANGED; 632 disp.list->numHwLayers = numLayers; 633 } 634 return NO_ERROR; 635 } 636 637 status_t HWComposer::setFramebufferTarget(int32_t id, 638 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) { 639 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 640 return BAD_INDEX; 641 } 642 DisplayData& disp(mDisplayData[id]); 643 if (!disp.framebufferTarget) { 644 // this should never happen, but apparently eglCreateWindowSurface() 645 // triggers a Surface::queueBuffer() on some 646 // devices (!?) -- log and ignore. 647 ALOGE("HWComposer: framebufferTarget is null"); 648 return NO_ERROR; 649 } 650 651 int acquireFenceFd = -1; 652 if (acquireFence->isValid()) { 653 acquireFenceFd = acquireFence->dup(); 654 } 655 656 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd); 657 disp.fbTargetHandle = buf->handle; 658 disp.framebufferTarget->handle = disp.fbTargetHandle; 659 disp.framebufferTarget->acquireFenceFd = acquireFenceFd; 660 return NO_ERROR; 661 } 662 663 status_t HWComposer::prepare() { 664 Mutex::Autolock _l(mDisplayLock); 665 for (size_t i=0 ; i<mNumDisplays ; i++) { 666 DisplayData& disp(mDisplayData[i]); 667 if (disp.framebufferTarget) { 668 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET 669 // DO NOT reset the handle field to NULL, because it's possible 670 // that we have nothing to redraw (eg: eglSwapBuffers() not called) 671 // in which case, we should continue to use the same buffer. 672 LOG_FATAL_IF(disp.list == NULL); 673 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; 674 } 675 if (!disp.connected && disp.list != NULL) { 676 ALOGW("WARNING: disp %zu: connected, non-null list, layers=%zu", 677 i, disp.list->numHwLayers); 678 } 679 mLists[i] = disp.list; 680 if (mLists[i]) { 681 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { 682 mLists[i]->outbuf = disp.outbufHandle; 683 mLists[i]->outbufAcquireFenceFd = -1; 684 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 685 // garbage data to catch improper use 686 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF; 687 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF; 688 } else { 689 mLists[i]->dpy = EGL_NO_DISPLAY; 690 mLists[i]->sur = EGL_NO_SURFACE; 691 } 692 } 693 } 694 695 int err = mHwc->prepare(mHwc, mNumDisplays, mLists); 696 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err)); 697 698 if (err == NO_ERROR) { 699 // here we're just making sure that "skip" layers are set 700 // to HWC_FRAMEBUFFER and we're also counting how many layers 701 // we have of each type. 702 // 703 // If there are no window layers, we treat the display has having FB 704 // composition, because SurfaceFlinger will use GLES to draw the 705 // wormhole region. 706 for (size_t i=0 ; i<mNumDisplays ; i++) { 707 DisplayData& disp(mDisplayData[i]); 708 disp.hasFbComp = false; 709 disp.hasOvComp = false; 710 if (disp.list) { 711 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 712 hwc_layer_1_t& l = disp.list->hwLayers[i]; 713 714 //ALOGD("prepare: %d, type=%d, handle=%p", 715 // i, l.compositionType, l.handle); 716 717 if (l.flags & HWC_SKIP_LAYER) { 718 l.compositionType = HWC_FRAMEBUFFER; 719 } 720 if (l.compositionType == HWC_FRAMEBUFFER) { 721 disp.hasFbComp = true; 722 } 723 if (l.compositionType == HWC_OVERLAY) { 724 disp.hasOvComp = true; 725 } 726 if (l.compositionType == HWC_CURSOR_OVERLAY) { 727 disp.hasOvComp = true; 728 } 729 } 730 if (disp.list->numHwLayers == (disp.framebufferTarget ? 1 : 0)) { 731 disp.hasFbComp = true; 732 } 733 } else { 734 disp.hasFbComp = true; 735 } 736 } 737 } 738 return (status_t)err; 739 } 740 741 bool HWComposer::hasHwcComposition(int32_t id) const { 742 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 743 return false; 744 return mDisplayData[id].hasOvComp; 745 } 746 747 bool HWComposer::hasGlesComposition(int32_t id) const { 748 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 749 return true; 750 return mDisplayData[id].hasFbComp; 751 } 752 753 sp<Fence> HWComposer::getAndResetReleaseFence(int32_t id) { 754 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 755 return Fence::NO_FENCE; 756 757 int fd = INVALID_OPERATION; 758 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 759 const DisplayData& disp(mDisplayData[id]); 760 if (disp.framebufferTarget) { 761 fd = disp.framebufferTarget->releaseFenceFd; 762 disp.framebufferTarget->acquireFenceFd = -1; 763 disp.framebufferTarget->releaseFenceFd = -1; 764 } 765 } 766 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE; 767 } 768 769 status_t HWComposer::commit() { 770 int err = NO_ERROR; 771 if (mHwc) { 772 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 773 // On version 1.0, the OpenGL ES target surface is communicated 774 // by the (dpy, sur) fields and we are guaranteed to have only 775 // a single display. 776 mLists[0]->dpy = eglGetCurrentDisplay(); 777 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW); 778 } 779 780 for (size_t i=VIRTUAL_DISPLAY_ID_BASE; i<mNumDisplays; i++) { 781 DisplayData& disp(mDisplayData[i]); 782 if (disp.outbufHandle) { 783 mLists[i]->outbuf = disp.outbufHandle; 784 mLists[i]->outbufAcquireFenceFd = 785 disp.outbufAcquireFence->dup(); 786 } 787 } 788 789 err = mHwc->set(mHwc, mNumDisplays, mLists); 790 791 for (size_t i=0 ; i<mNumDisplays ; i++) { 792 DisplayData& disp(mDisplayData[i]); 793 disp.lastDisplayFence = disp.lastRetireFence; 794 disp.lastRetireFence = Fence::NO_FENCE; 795 if (disp.list) { 796 if (disp.list->retireFenceFd != -1) { 797 disp.lastRetireFence = new Fence(disp.list->retireFenceFd); 798 disp.list->retireFenceFd = -1; 799 } 800 disp.list->flags &= ~HWC_GEOMETRY_CHANGED; 801 } 802 } 803 } 804 return (status_t)err; 805 } 806 807 status_t HWComposer::setPowerMode(int disp, int mode) { 808 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE); 809 if (mHwc) { 810 if (mode == HWC_POWER_MODE_OFF) { 811 eventControl(disp, HWC_EVENT_VSYNC, 0); 812 } 813 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) { 814 return (status_t)mHwc->setPowerMode(mHwc, disp, mode); 815 } else { 816 return (status_t)mHwc->blank(mHwc, disp, 817 mode == HWC_POWER_MODE_OFF ? 1 : 0); 818 } 819 } 820 return NO_ERROR; 821 } 822 823 status_t HWComposer::setActiveConfig(int disp, int mode) { 824 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE); 825 DisplayData& dd(mDisplayData[disp]); 826 dd.currentConfig = mode; 827 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) { 828 return (status_t)mHwc->setActiveConfig(mHwc, disp, mode); 829 } else { 830 LOG_FATAL_IF(mode != 0); 831 } 832 return NO_ERROR; 833 } 834 835 void HWComposer::disconnectDisplay(int disp) { 836 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY); 837 DisplayData& dd(mDisplayData[disp]); 838 free(dd.list); 839 dd.list = NULL; 840 dd.framebufferTarget = NULL; // points into dd.list 841 dd.fbTargetHandle = NULL; 842 dd.outbufHandle = NULL; 843 dd.lastRetireFence = Fence::NO_FENCE; 844 dd.lastDisplayFence = Fence::NO_FENCE; 845 dd.outbufAcquireFence = Fence::NO_FENCE; 846 // clear all the previous configs and repopulate when a new 847 // device is added 848 dd.configs.clear(); 849 } 850 851 int HWComposer::getVisualID() const { 852 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 853 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED 854 // is supported by the implementation. we can only be in this case 855 // if we have HWC 1.1 856 return HAL_PIXEL_FORMAT_RGBA_8888; 857 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 858 } else { 859 return mFbDev->format; 860 } 861 } 862 863 bool HWComposer::supportsFramebufferTarget() const { 864 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); 865 } 866 867 int HWComposer::fbPost(int32_t id, 868 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 869 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 870 return setFramebufferTarget(id, acquireFence, buffer); 871 } else { 872 acquireFence->waitForever("HWComposer::fbPost"); 873 return mFbDev->post(mFbDev, buffer->handle); 874 } 875 } 876 877 int HWComposer::fbCompositionComplete() { 878 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) 879 return NO_ERROR; 880 881 if (mFbDev->compositionComplete) { 882 return mFbDev->compositionComplete(mFbDev); 883 } else { 884 return INVALID_OPERATION; 885 } 886 } 887 888 void HWComposer::fbDump(String8& result) { 889 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) { 890 const size_t SIZE = 4096; 891 char buffer[SIZE]; 892 mFbDev->dump(mFbDev, buffer, SIZE); 893 result.append(buffer); 894 } 895 } 896 897 status_t HWComposer::setOutputBuffer(int32_t id, const sp<Fence>& acquireFence, 898 const sp<GraphicBuffer>& buf) { 899 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 900 return BAD_INDEX; 901 if (id < VIRTUAL_DISPLAY_ID_BASE) 902 return INVALID_OPERATION; 903 904 DisplayData& disp(mDisplayData[id]); 905 disp.outbufHandle = buf->handle; 906 disp.outbufAcquireFence = acquireFence; 907 return NO_ERROR; 908 } 909 910 sp<Fence> HWComposer::getLastRetireFence(int32_t id) const { 911 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) 912 return Fence::NO_FENCE; 913 return mDisplayData[id].lastRetireFence; 914 } 915 916 status_t HWComposer::setCursorPositionAsync(int32_t id, const Rect& pos) 917 { 918 if (mHwc->setCursorPositionAsync) { 919 return (status_t)mHwc->setCursorPositionAsync(mHwc, id, pos.left, pos.top); 920 } 921 else { 922 return NO_ERROR; 923 } 924 } 925 926 /* 927 * Helper template to implement a concrete HWCLayer 928 * This holds the pointer to the concrete hwc layer type 929 * and implements the "iterable" side of HWCLayer. 930 */ 931 template<typename CONCRETE, typename HWCTYPE> 932 class Iterable : public HWComposer::HWCLayer { 933 protected: 934 HWCTYPE* const mLayerList; 935 HWCTYPE* mCurrentLayer; 936 explicit Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer), 937 mIndex(0) { } 938 inline HWCTYPE const * getLayer() const { return mCurrentLayer; } 939 inline HWCTYPE* getLayer() { return mCurrentLayer; } 940 virtual ~Iterable() { } 941 size_t mIndex; 942 private: 943 // returns a copy of ourselves 944 virtual HWComposer::HWCLayer* dup() { 945 return new CONCRETE( static_cast<const CONCRETE&>(*this) ); 946 } 947 virtual status_t setLayer(size_t index) { 948 mIndex = index; 949 mCurrentLayer = &mLayerList[index]; 950 return NO_ERROR; 951 } 952 }; 953 954 /* 955 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0. 956 * This implements the HWCLayer side of HWCIterableLayer. 957 */ 958 class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> { 959 struct hwc_composer_device_1* mHwc; 960 public: 961 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer, 962 Vector<Region>* visibleRegions, 963 Vector<Region>* surfaceDamageRegions) 964 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc), 965 mVisibleRegions(visibleRegions), 966 mSurfaceDamageRegions(surfaceDamageRegions) {} 967 968 virtual int32_t getCompositionType() const { 969 return getLayer()->compositionType; 970 } 971 virtual uint32_t getHints() const { 972 return getLayer()->hints; 973 } 974 virtual sp<Fence> getAndResetReleaseFence() { 975 int fd = getLayer()->releaseFenceFd; 976 getLayer()->releaseFenceFd = -1; 977 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE; 978 } 979 virtual void setAcquireFenceFd(int fenceFd) { 980 getLayer()->acquireFenceFd = fenceFd; 981 } 982 virtual void setPerFrameDefaultState() { 983 //getLayer()->compositionType = HWC_FRAMEBUFFER; 984 } 985 virtual void setPlaneAlpha(uint8_t alpha) { 986 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { 987 getLayer()->planeAlpha = alpha; 988 } else { 989 if (alpha < 0xFF) { 990 getLayer()->flags |= HWC_SKIP_LAYER; 991 } 992 } 993 } 994 virtual void setDefaultState() { 995 hwc_layer_1_t* const l = getLayer(); 996 l->compositionType = HWC_FRAMEBUFFER; 997 l->hints = 0; 998 l->flags = HWC_SKIP_LAYER; 999 l->handle = 0; 1000 l->transform = 0; 1001 l->blending = HWC_BLENDING_NONE; 1002 l->visibleRegionScreen.numRects = 0; 1003 l->visibleRegionScreen.rects = NULL; 1004 l->acquireFenceFd = -1; 1005 l->releaseFenceFd = -1; 1006 l->planeAlpha = 0xFF; 1007 } 1008 virtual void setSkip(bool skip) { 1009 if (skip) { 1010 getLayer()->flags |= HWC_SKIP_LAYER; 1011 } else { 1012 getLayer()->flags &= ~HWC_SKIP_LAYER; 1013 } 1014 } 1015 virtual void setIsCursorLayerHint(bool isCursor) { 1016 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) { 1017 if (isCursor) { 1018 getLayer()->flags |= HWC_IS_CURSOR_LAYER; 1019 } 1020 else { 1021 getLayer()->flags &= ~HWC_IS_CURSOR_LAYER; 1022 } 1023 } 1024 } 1025 virtual void setBlending(uint32_t blending) { 1026 getLayer()->blending = blending; 1027 } 1028 virtual void setTransform(uint32_t transform) { 1029 getLayer()->transform = transform; 1030 } 1031 virtual void setFrame(const Rect& frame) { 1032 getLayer()->displayFrame = reinterpret_cast<hwc_rect_t const&>(frame); 1033 } 1034 virtual void setCrop(const FloatRect& crop) { 1035 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { 1036 getLayer()->sourceCropf = reinterpret_cast<hwc_frect_t const&>(crop); 1037 } else { 1038 /* 1039 * Since h/w composer didn't support a flot crop rect before version 1.3, 1040 * using integer coordinates instead produces a different output from the GL code in 1041 * Layer::drawWithOpenGL(). The difference can be large if the buffer crop to 1042 * window size ratio is large and a window crop is defined 1043 * (i.e.: if we scale the buffer a lot and we also crop it with a window crop). 1044 */ 1045 hwc_rect_t& r = getLayer()->sourceCrop; 1046 r.left = int(ceilf(crop.left)); 1047 r.top = int(ceilf(crop.top)); 1048 r.right = int(floorf(crop.right)); 1049 r.bottom= int(floorf(crop.bottom)); 1050 } 1051 } 1052 virtual void setVisibleRegionScreen(const Region& reg) { 1053 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; 1054 mVisibleRegions->editItemAt(mIndex) = reg; 1055 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>( 1056 mVisibleRegions->itemAt(mIndex).getArray( 1057 &visibleRegion.numRects)); 1058 } 1059 virtual void setSurfaceDamage(const Region& reg) { 1060 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_5)) { 1061 return; 1062 } 1063 hwc_region_t& surfaceDamage = getLayer()->surfaceDamage; 1064 // We encode default full-screen damage as INVALID_RECT upstream, but as 1065 // 0 rects for HWComposer 1066 if (reg.isRect() && reg.getBounds() == Rect::INVALID_RECT) { 1067 surfaceDamage.numRects = 0; 1068 surfaceDamage.rects = NULL; 1069 return; 1070 } 1071 mSurfaceDamageRegions->editItemAt(mIndex) = reg; 1072 surfaceDamage.rects = reinterpret_cast<hwc_rect_t const *>( 1073 mSurfaceDamageRegions->itemAt(mIndex).getArray( 1074 &surfaceDamage.numRects)); 1075 } 1076 virtual void setSidebandStream(const sp<NativeHandle>& stream) { 1077 ALOG_ASSERT(stream->handle() != NULL); 1078 getLayer()->compositionType = HWC_SIDEBAND; 1079 getLayer()->sidebandStream = stream->handle(); 1080 } 1081 virtual void setBuffer(const sp<GraphicBuffer>& buffer) { 1082 if (buffer == 0 || buffer->handle == 0) { 1083 getLayer()->compositionType = HWC_FRAMEBUFFER; 1084 getLayer()->flags |= HWC_SKIP_LAYER; 1085 getLayer()->handle = 0; 1086 } else { 1087 if (getLayer()->compositionType == HWC_SIDEBAND) { 1088 // If this was a sideband layer but the stream was removed, reset 1089 // it to FRAMEBUFFER. The HWC can change it to OVERLAY in prepare. 1090 getLayer()->compositionType = HWC_FRAMEBUFFER; 1091 } 1092 getLayer()->handle = buffer->handle; 1093 } 1094 } 1095 virtual void onDisplayed() { 1096 getLayer()->acquireFenceFd = -1; 1097 } 1098 1099 protected: 1100 // Pointers to the vectors of Region backing-memory held in DisplayData. 1101 // Only the Region at mIndex corresponds to this Layer. 1102 Vector<Region>* mVisibleRegions; 1103 Vector<Region>* mSurfaceDamageRegions; 1104 }; 1105 1106 /* 1107 * returns an iterator initialized at a given index in the layer list 1108 */ 1109 HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) { 1110 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { 1111 return LayerListIterator(); 1112 } 1113 DisplayData& disp(mDisplayData[id]); 1114 if (!mHwc || !disp.list || index > disp.list->numHwLayers) { 1115 return LayerListIterator(); 1116 } 1117 if (disp.visibleRegions.size() < disp.list->numHwLayers) { 1118 disp.visibleRegions.resize(disp.list->numHwLayers); 1119 } 1120 if (disp.surfaceDamageRegions.size() < disp.list->numHwLayers) { 1121 disp.surfaceDamageRegions.resize(disp.list->numHwLayers); 1122 } 1123 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers, 1124 &disp.visibleRegions, &disp.surfaceDamageRegions), index); 1125 } 1126 1127 /* 1128 * returns an iterator on the beginning of the layer list 1129 */ 1130 HWComposer::LayerListIterator HWComposer::begin(int32_t id) { 1131 return getLayerIterator(id, 0); 1132 } 1133 1134 /* 1135 * returns an iterator on the end of the layer list 1136 */ 1137 HWComposer::LayerListIterator HWComposer::end(int32_t id) { 1138 size_t numLayers = 0; 1139 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) { 1140 const DisplayData& disp(mDisplayData[id]); 1141 if (mHwc && disp.list) { 1142 numLayers = disp.list->numHwLayers; 1143 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { 1144 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET, 1145 // which we ignore when iterating through the layer list. 1146 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id); 1147 if (numLayers) { 1148 numLayers--; 1149 } 1150 } 1151 } 1152 } 1153 return getLayerIterator(id, numLayers); 1154 } 1155 1156 // Converts a PixelFormat to a human-readable string. Max 11 chars. 1157 // (Could use a table of prefab String8 objects.) 1158 static String8 getFormatStr(PixelFormat format) { 1159 switch (format) { 1160 case PIXEL_FORMAT_RGBA_8888: return String8("RGBA_8888"); 1161 case PIXEL_FORMAT_RGBX_8888: return String8("RGBx_8888"); 1162 case PIXEL_FORMAT_RGBA_FP16: return String8("RGBA_FP16"); 1163 case PIXEL_FORMAT_RGBA_1010102: return String8("RGBA_1010102"); 1164 case PIXEL_FORMAT_RGB_888: return String8("RGB_888"); 1165 case PIXEL_FORMAT_RGB_565: return String8("RGB_565"); 1166 case PIXEL_FORMAT_BGRA_8888: return String8("BGRA_8888"); 1167 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: 1168 return String8("ImplDef"); 1169 default: 1170 String8 result; 1171 result.appendFormat("? %08x", format); 1172 return result; 1173 } 1174 } 1175 1176 void HWComposer::dump(String8& result) const { 1177 Mutex::Autolock _l(mDisplayLock); 1178 if (mHwc) { 1179 result.appendFormat("Hardware Composer state (version %08x):\n", hwcApiVersion(mHwc)); 1180 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync); 1181 for (size_t i=0 ; i<mNumDisplays ; i++) { 1182 const DisplayData& disp(mDisplayData[i]); 1183 if (!disp.connected) 1184 continue; 1185 1186 const Vector< sp<Layer> >& visibleLayersSortedByZ = 1187 mFlinger->getLayerSortedByZForHwcDisplay(i); 1188 1189 1190 result.appendFormat(" Display[%zd] configurations (* current):\n", i); 1191 for (size_t c = 0; c < disp.configs.size(); ++c) { 1192 const DisplayConfig& config(disp.configs[c]); 1193 result.appendFormat(" %s%zd: %ux%u, xdpi=%f, ydpi=%f" 1194 ", refresh=%" PRId64 ", colorMode=%d\n", 1195 c == disp.currentConfig ? "* " : "", c, 1196 config.width, config.height, config.xdpi, config.ydpi, 1197 config.refresh, config.colorMode); 1198 } 1199 1200 if (disp.list) { 1201 result.appendFormat( 1202 " numHwLayers=%zu, flags=%08x\n", 1203 disp.list->numHwLayers, disp.list->flags); 1204 1205 result.append( 1206 " type | handle | hint | flag | tr | blnd | format | source crop (l,t,r,b) | frame | name \n" 1207 "-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------\n"); 1208 // " _________ | ________ | ____ | ____ | __ | ____ | ___________ |_____._,_____._,_____._,_____._ |_____,_____,_____,_____ | ___... 1209 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { 1210 const hwc_layer_1_t&l = disp.list->hwLayers[i]; 1211 int32_t format = -1; 1212 String8 name("unknown"); 1213 1214 if (i < visibleLayersSortedByZ.size()) { 1215 const sp<Layer>& layer(visibleLayersSortedByZ[i]); 1216 const sp<GraphicBuffer>& buffer( 1217 layer->getActiveBuffer()); 1218 if (buffer != NULL) { 1219 format = buffer->getPixelFormat(); 1220 } 1221 name = layer->getName(); 1222 } 1223 1224 int type = l.compositionType; 1225 if (type == HWC_FRAMEBUFFER_TARGET) { 1226 name = "HWC_FRAMEBUFFER_TARGET"; 1227 format = disp.format; 1228 } 1229 1230 static char const* compositionTypeName[] = { 1231 "GLES", 1232 "HWC", 1233 "BKGND", 1234 "FB TARGET", 1235 "SIDEBAND", 1236 "HWC_CURSOR", 1237 "UNKNOWN"}; 1238 if (type >= NELEM(compositionTypeName)) 1239 type = NELEM(compositionTypeName) - 1; 1240 1241 String8 formatStr = getFormatStr(format); 1242 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { 1243 result.appendFormat( 1244 " %9s | %08" PRIxPTR " | %04x | %04x | %02x | %04x | %-11s |%7.1f,%7.1f,%7.1f,%7.1f |%5d,%5d,%5d,%5d | %s\n", 1245 compositionTypeName[type], 1246 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, formatStr.string(), 1247 l.sourceCropf.left, l.sourceCropf.top, l.sourceCropf.right, l.sourceCropf.bottom, 1248 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, 1249 name.string()); 1250 } else { 1251 result.appendFormat( 1252 " %9s | %08" PRIxPTR " | %04x | %04x | %02x | %04x | %-11s |%7d,%7d,%7d,%7d |%5d,%5d,%5d,%5d | %s\n", 1253 compositionTypeName[type], 1254 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, formatStr.string(), 1255 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, 1256 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, 1257 name.string()); 1258 } 1259 } 1260 } 1261 } 1262 } 1263 1264 if (mHwc && mHwc->dump) { 1265 const size_t SIZE = 4096; 1266 char buffer[SIZE]; 1267 mHwc->dump(mHwc, buffer, SIZE); 1268 result.append(buffer); 1269 } 1270 } 1271 1272 // --------------------------------------------------------------------------- 1273 1274 HWComposer::VSyncThread::VSyncThread(HWComposer& hwc) 1275 : mHwc(hwc), mEnabled(false), 1276 mNextFakeVSync(0), 1277 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY)) 1278 { 1279 } 1280 1281 void HWComposer::VSyncThread::setEnabled(bool enabled) { 1282 Mutex::Autolock _l(mLock); 1283 if (mEnabled != enabled) { 1284 mEnabled = enabled; 1285 mCondition.signal(); 1286 } 1287 } 1288 1289 void HWComposer::VSyncThread::onFirstRef() { 1290 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE); 1291 } 1292 1293 bool HWComposer::VSyncThread::threadLoop() { 1294 { // scope for lock 1295 Mutex::Autolock _l(mLock); 1296 while (!mEnabled) { 1297 mCondition.wait(mLock); 1298 } 1299 } 1300 1301 const nsecs_t period = mRefreshPeriod; 1302 const nsecs_t now = systemTime(CLOCK_MONOTONIC); 1303 nsecs_t next_vsync = mNextFakeVSync; 1304 nsecs_t sleep = next_vsync - now; 1305 if (sleep < 0) { 1306 // we missed, find where the next vsync should be 1307 sleep = (period - ((now - next_vsync) % period)); 1308 next_vsync = now + sleep; 1309 } 1310 mNextFakeVSync = next_vsync + period; 1311 1312 struct timespec spec; 1313 spec.tv_sec = next_vsync / 1000000000; 1314 spec.tv_nsec = next_vsync % 1000000000; 1315 1316 int err; 1317 do { 1318 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL); 1319 } while (err<0 && errno == EINTR); 1320 1321 if (err == 0) { 1322 mHwc.mEventHandler.onVSyncReceived(&mHwc, 0, next_vsync); 1323 } 1324 1325 return true; 1326 } 1327 1328 HWComposer::DisplayData::DisplayData() 1329 : configs(), 1330 currentConfig(0), 1331 format(HAL_PIXEL_FORMAT_RGBA_8888), 1332 connected(false), 1333 hasFbComp(false), hasOvComp(false), 1334 capacity(0), list(NULL), 1335 framebufferTarget(NULL), fbTargetHandle(0), 1336 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE), 1337 outbufHandle(NULL), outbufAcquireFence(Fence::NO_FENCE), 1338 events(0) 1339 {} 1340 1341 HWComposer::DisplayData::~DisplayData() { 1342 free(list); 1343 } 1344 1345 // --------------------------------------------------------------------------- 1346 }; // namespace android 1347
