2 * Copyright (C) 2010 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
19 // Uncomment this to remove support for HWC_DEVICE_API_VERSION_0_3 and older
20 #define HWC_REMOVE_DEPRECATED_VERSIONS 1
26 #include <sys/types.h>
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>
35 #include <ui/GraphicBuffer.h>
37 #include <hardware/hardware.h>
38 #include <hardware/hwcomposer.h>
40 #include <cutils/log.h>
41 #include <cutils/properties.h>
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>
51 #define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION
53 static 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;
58 static 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;
63 static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc,
65 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK);
68 // ---------------------------------------------------------------------------
70 struct 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);
81 // ---------------------------------------------------------------------------
83 HWComposer::HWComposer(
84 const sp<SurfaceFlinger>& flinger,
85 EventHandler& handler)
87 mFbDev(0), mHwc(0), mNumDisplays(1),
88 mCBContext(new cb_context),
89 mEventHandler(handler),
90 mVSyncCount(0), mDebugForceFakeVSync(false)
92 for (size_t i =0 ; i<MAX_DISPLAYS ; i++) {
96 char value[PROPERTY_VALUE_MAX];
97 property_get("debug.sf.no_hw_vsync", value, "0");
98 mDebugForceFakeVSync = atoi(value);
100 bool needVSyncThread = true;
102 // Note: some devices may insist that the FB HAL be opened before HWC.
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
110 framebuffer_close(mFbDev);
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))
117 ALOGE("ERROR: failed to open framebuffer, aborting");
121 // these display IDs are always reserved
122 for (size_t i=0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) {
123 mAllocatedDisplayIDs.markBit(i);
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;
137 mCBContext->procs.hotplug = NULL;
138 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero));
139 mHwc->registerProcs(mHwc, &mCBContext->procs);
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);
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;
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");
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);
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);
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);
187 if (needVSyncThread) {
188 // we don't have VSYNC support, we need to fake it
189 mVSyncThread = new VSyncThread(*this);
193 HWComposer::~HWComposer() {
195 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
197 if (mVSyncThread != NULL) {
198 mVSyncThread->requestExitAndWait();
204 framebuffer_close(mFbDev);
209 // Load and prepare the hardware composer module. Sets mHwc.
210 void HWComposer::loadHwcModule()
212 hw_module_t const* module;
214 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) {
215 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID);
219 int err = hwc_open_1(module, &mHwc);
221 ALOGE("%s device failed to initialize (%s)",
222 HWC_HARDWARE_COMPOSER, strerror(-err));
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);
237 // Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev.
238 void HWComposer::loadFbHalModule()
240 hw_module_t const* module;
242 if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) != 0) {
243 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID);
247 int err = framebuffer_open(module, &mFbDev);
249 ALOGE("framebuffer_open failed (%s)", strerror(-err));
254 status_t HWComposer::initCheck() const {
255 return mHwc ? NO_ERROR : NO_INIT;
258 void 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();
264 void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp,
266 cb_context* ctx = reinterpret_cast<cb_context*>(
267 const_cast<hwc_procs_t*>(procs));
268 ctx->hwc->vsync(disp, timestamp);
271 void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp,
273 cb_context* ctx = reinterpret_cast<cb_context*>(
274 const_cast<hwc_procs_t*>(procs));
275 ctx->hwc->hotplug(disp, connected);
278 void HWComposer::invalidate() {
279 mFlinger->repaintEverything();
282 void 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;
289 void 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",
295 queryDisplayProperties(disp);
296 mEventHandler.onHotplugReceived(disp, bool(connected));
299 static const uint32_t DISPLAY_ATTRIBUTES[] = {
300 HWC_DISPLAY_VSYNC_PERIOD,
305 HWC_DISPLAY_NO_ATTRIBUTE,
307 #define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0])
309 // http://developer.android.com/reference/android/util/DisplayMetrics.html
310 #define ANDROID_DENSITY_TV 213
311 #define ANDROID_DENSITY_XHIGH 320
313 status_t HWComposer::queryDisplayProperties(int disp) {
315 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
317 // use zero as default value for unspecified attributes
318 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1];
319 memset(values, 0, sizeof(values));
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;
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;
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]);
343 case HWC_DISPLAY_WIDTH:
344 mDisplayData[disp].width = values[i];
346 case HWC_DISPLAY_HEIGHT:
347 mDisplayData[disp].height = values[i];
349 case HWC_DISPLAY_DPI_X:
350 mDisplayData[disp].xdpi = values[i] / 1000.0f;
352 case HWC_DISPLAY_DPI_Y:
353 mDisplayData[disp].ydpi = values[i] / 1000.0f;
356 ALOG_ASSERT(false, "unknown display attribute[%d] %#x",
357 i, DISPLAY_ATTRIBUTES[i]);
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?
368 mDisplayData[disp].xdpi = ANDROID_DENSITY_XHIGH;
369 mDisplayData[disp].ydpi = ANDROID_DENSITY_XHIGH;
371 mDisplayData[disp].xdpi = ANDROID_DENSITY_TV;
372 mDisplayData[disp].ydpi = ANDROID_DENSITY_TV;
378 int32_t HWComposer::allocateDisplayId() {
379 if (mAllocatedDisplayIDs.count() >= mNumDisplays) {
382 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit();
383 mAllocatedDisplayIDs.markBit(id);
387 status_t HWComposer::freeDisplayId(int32_t id) {
388 if (id < HWC_NUM_DISPLAY_TYPES) {
389 // cannot free the reserved IDs
392 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
395 mAllocatedDisplayIDs.clearBit(id);
399 nsecs_t HWComposer::getRefreshPeriod(int disp) const {
400 return mDisplayData[disp].refresh;
403 nsecs_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);
412 sp<Fence> HWComposer::getDisplayFence(int disp) const {
413 return mDisplayData[disp].lastDisplayFence;
417 uint32_t HWComposer::getWidth(int disp) const {
418 return mDisplayData[disp].width;
421 uint32_t HWComposer::getHeight(int disp) const {
422 return mDisplayData[disp].height;
425 uint32_t HWComposer::getFormat(int disp) const {
426 return mDisplayData[disp].format;
429 float HWComposer::getDpiX(int disp) const {
430 return mDisplayData[disp].xdpi;
433 float HWComposer::getDpiY(int disp) const {
434 return mDisplayData[disp].ydpi;
437 bool HWComposer::isConnected(int disp) const {
438 return mDisplayData[disp].connected;
441 void 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);
447 if (event != EVENT_VSYNC) {
448 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)",
449 event, disp, enabled);
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) {
464 err = mHwc->eventControl(mHwc, disp, event, enabled);
466 int32_t& events(mDisplayData[disp].events);
467 events = (events & ~eventBit) | newValue;
470 // error here should not happen -- not sure what we should
472 ALOGE_IF(err, "eventControl(%d, %d) failed %s",
473 event, enabled, strerror(-err));
476 if (err == NO_ERROR && mVSyncThread != NULL) {
477 mVSyncThread->setEnabled(enabled);
481 status_t HWComposer::createWorkList(int32_t id, size_t numLayers) {
482 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
487 DisplayData& disp(mDisplayData[id]);
488 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
489 // we need space for the HWC_FRAMEBUFFER_TARGET
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);
496 disp.list = (hwc_display_contents_1_t*)malloc(size);
497 disp.capacity = numLayers;
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;
517 disp.list->retireFenceFd = -1;
518 disp.list->flags = HWC_GEOMETRY_CHANGED;
519 disp.list->numHwLayers = numLayers;
524 status_t HWComposer::setFramebufferTarget(int32_t id,
525 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) {
526 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
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");
541 int acquireFenceFd = -1;
542 if (acquireFence->isValid()) {
543 acquireFenceFd = acquireFence->dup();
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;
553 status_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;
564 if (!disp.connected && disp.list != NULL) {
565 ALOGW("WARNING: disp %d: connected, non-null list, layers=%d",
566 i, disp.list->numHwLayers);
568 mLists[i] = disp.list;
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;
578 mLists[i]->dpy = EGL_NO_DISPLAY;
579 mLists[i]->sur = EGL_NO_SURFACE;
584 int err = mHwc->prepare(mHwc, mNumDisplays, mLists);
585 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err));
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;
596 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
597 hwc_layer_1_t& l = disp.list->hwLayers[i];
599 //ALOGD("prepare: %d, type=%d, handle=%p",
600 // i, l.compositionType, l.handle);
602 if (l.flags & HWC_SKIP_LAYER) {
603 l.compositionType = HWC_FRAMEBUFFER;
605 if (l.compositionType == HWC_FRAMEBUFFER) {
606 disp.hasFbComp = true;
608 if (l.compositionType == HWC_OVERLAY) {
609 disp.hasOvComp = true;
615 return (status_t)err;
618 bool HWComposer::hasHwcComposition(int32_t id) const {
619 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
621 return mDisplayData[id].hasOvComp;
624 bool HWComposer::hasGlesComposition(int32_t id) const {
625 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
627 return mDisplayData[id].hasFbComp;
630 int HWComposer::getAndResetReleaseFenceFd(int32_t id) {
631 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
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;
646 status_t HWComposer::commit() {
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
653 mLists[0]->dpy = eglGetCurrentDisplay();
654 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW);
657 err = mHwc->set(mHwc, mNumDisplays, mLists);
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;
664 if (disp.list->retireFenceFd != -1) {
665 disp.lastRetireFence = new Fence(disp.list->retireFenceFd);
666 disp.list->retireFenceFd = -1;
668 disp.list->flags &= ~HWC_GEOMETRY_CHANGED;
672 return (status_t)err;
675 status_t HWComposer::release(int disp) {
676 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES);
678 eventControl(disp, HWC_EVENT_VSYNC, 0);
679 return (status_t)mHwc->blank(mHwc, disp, 1);
684 status_t HWComposer::acquire(int disp) {
685 LOG_FATAL_IF(disp >= HWC_NUM_DISPLAY_TYPES);
687 return (status_t)mHwc->blank(mHwc, disp, 0);
692 void 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
698 DisplayData& dd(mDisplayData[disp]);
699 if (dd.list != NULL) {
702 dd.framebufferTarget = NULL; // points into dd.list
703 dd.fbTargetHandle = NULL;
707 int 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;
715 return mFbDev->format;
719 bool HWComposer::supportsFramebufferTarget() const {
720 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
723 int 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);
728 acquireFence->waitForever(1000, "HWComposer::fbPost");
729 return mFbDev->post(mFbDev, buffer->handle);
733 int HWComposer::fbCompositionComplete() {
734 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
737 if (mFbDev->compositionComplete) {
738 return mFbDev->compositionComplete(mFbDev);
740 return INVALID_OPERATION;
744 void HWComposer::fbDump(String8& result) {
745 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) {
746 const size_t SIZE = 4096;
748 mFbDev->dump(mFbDev, buffer, SIZE);
749 result.append(buffer);
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.
758 template<typename CONCRETE, typename HWCTYPE>
759 class Iterable : public HWComposer::HWCLayer {
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() { }
768 // returns a copy of ourselves
769 virtual HWComposer::HWCLayer* dup() {
770 return new CONCRETE( static_cast<const CONCRETE&>(*this) );
772 virtual status_t setLayer(size_t index) {
773 mCurrentLayer = &mLayerList[index];
779 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0.
780 * This implements the HWCLayer side of HWCIterableLayer.
782 class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> {
783 struct hwc_composer_device_1* mHwc;
785 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer)
786 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { }
788 virtual int32_t getCompositionType() const {
789 return getLayer()->compositionType;
791 virtual uint32_t getHints() const {
792 return getLayer()->hints;
794 virtual int getAndResetReleaseFenceFd() {
795 int fd = getLayer()->releaseFenceFd;
796 getLayer()->releaseFenceFd = -1;
799 virtual void setAcquireFenceFd(int fenceFd) {
800 getLayer()->acquireFenceFd = fenceFd;
802 virtual void setPerFrameDefaultState() {
803 //getLayer()->compositionType = HWC_FRAMEBUFFER;
805 virtual void setPlaneAlpha(uint8_t alpha) {
806 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) {
807 getLayer()->planeAlpha = alpha;
810 getLayer()->flags |= HWC_SKIP_LAYER;
814 virtual void setDefaultState() {
815 hwc_layer_1_t* const l = getLayer();
816 l->compositionType = HWC_FRAMEBUFFER;
818 l->flags = HWC_SKIP_LAYER;
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;
828 virtual void setSkip(bool skip) {
830 getLayer()->flags |= HWC_SKIP_LAYER;
832 getLayer()->flags &= ~HWC_SKIP_LAYER;
835 virtual void setBlending(uint32_t blending) {
836 getLayer()->blending = blending;
838 virtual void setTransform(uint32_t transform) {
839 getLayer()->transform = transform;
841 virtual void setFrame(const Rect& frame) {
842 reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame;
844 virtual void setCrop(const Rect& crop) {
845 reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop;
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
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());
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;
861 getLayer()->handle = buffer->handle;
864 virtual void onDisplayed() {
865 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen;
866 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects);
869 // not technically needed but safer
870 visibleRegion.numRects = 0;
871 visibleRegion.rects = NULL;
874 getLayer()->acquireFenceFd = -1;
879 * returns an iterator initialized at a given index in the layer list
881 HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) {
882 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
883 return LayerListIterator();
885 const DisplayData& disp(mDisplayData[id]);
886 if (!mHwc || !disp.list || index > disp.list->numHwLayers) {
887 return LayerListIterator();
889 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers), index);
893 * returns an iterator on the beginning of the layer list
895 HWComposer::LayerListIterator HWComposer::begin(int32_t id) {
896 return getLayerIterator(id, 0);
900 * returns an iterator on the end of the layer list
902 HWComposer::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);
918 return getLayerIterator(id, numLayers);
921 void HWComposer::dump(String8& result, char* buffer, size_t SIZE) const {
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]);
928 const Vector< sp<LayerBase> >& visibleLayersSortedByZ =
929 mFlinger->getLayerSortedByZForHwcDisplay(i);
931 if (disp.connected) {
933 " Display[%d] : %ux%u, xdpi=%f, ydpi=%f, refresh=%lld\n",
934 i, disp.width, disp.height, disp.xdpi, disp.ydpi, disp.refresh);
937 if (disp.list && disp.connected) {
939 " numHwLayers=%u, flags=%08x\n",
940 disp.list->numHwLayers, disp.list->flags);
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];
949 String8 name("unknown");
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();
960 name = layer->getName();
963 int type = l.compositionType;
964 if (type == HWC_FRAMEBUFFER_TARGET) {
965 name = "HWC_FRAMEBUFFER_TARGET";
966 format = disp.format;
969 static char const* compositionTypeName[] = {
975 if (type >= NELEM(compositionTypeName))
976 type = NELEM(compositionTypeName) - 1;
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,
990 if (mHwc && mHwc->dump) {
991 mHwc->dump(mHwc, buffer, SIZE);
992 result.append(buffer);
996 // ---------------------------------------------------------------------------
998 HWComposer::VSyncThread::VSyncThread(HWComposer& hwc)
999 : mHwc(hwc), mEnabled(false),
1001 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY))
1005 void HWComposer::VSyncThread::setEnabled(bool enabled) {
1006 Mutex::Autolock _l(mLock);
1007 if (mEnabled != enabled) {
1009 mCondition.signal();
1013 void HWComposer::VSyncThread::onFirstRef() {
1014 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE);
1017 bool HWComposer::VSyncThread::threadLoop() {
1019 Mutex::Autolock _l(mLock);
1021 mCondition.wait(mLock);
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;
1030 // we missed, find where the next vsync should be
1031 sleep = (period - ((now - next_vsync) % period));
1032 next_vsync = now + sleep;
1034 mNextFakeVSync = next_vsync + period;
1036 struct timespec spec;
1037 spec.tv_sec = next_vsync / 1000000000;
1038 spec.tv_nsec = next_vsync % 1000000000;
1042 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
1043 } while (err<0 && errno == EINTR);
1046 mHwc.mEventHandler.onVSyncReceived(0, next_vsync);
1052 HWComposer::DisplayData::DisplayData()
1053 : width(0), height(0), format(0),
1054 xdpi(0.0f), ydpi(0.0f),
1057 hasFbComp(false), hasOvComp(false),
1058 capacity(0), list(NULL),
1059 framebufferTarget(NULL), fbTargetHandle(0),
1060 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE),
1064 HWComposer::DisplayData::~DisplayData() {
1068 // ---------------------------------------------------------------------------
1069 }; // namespace android