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/CallStack.h>
29 #include <utils/Errors.h>
30 #include <utils/misc.h>
31 #include <utils/String8.h>
32 #include <utils/Thread.h>
33 #include <utils/Trace.h>
34 #include <utils/Vector.h>
36 #include <ui/GraphicBuffer.h>
38 #include <hardware/hardware.h>
39 #include <hardware/hwcomposer.h>
41 #include <android/configuration.h>
43 #include <cutils/log.h>
44 #include <cutils/properties.h>
46 #include "HWComposer.h"
48 #include "../Layer.h" // needed only for debugging
49 #include "../SurfaceFlinger.h"
53 #define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION
55 #define NUM_PHYSICAL_DISPLAYS HWC_NUM_DISPLAY_TYPES
56 #define VIRTUAL_DISPLAY_ID_BASE HWC_NUM_DISPLAY_TYPES
58 static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) {
59 uint32_t hwcVersion = hwc->common.version;
60 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK;
63 static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) {
64 uint32_t hwcVersion = hwc->common.version;
65 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK;
68 static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc,
70 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK);
73 // ---------------------------------------------------------------------------
75 struct HWComposer::cb_context {
76 struct callbacks : public hwc_procs_t {
77 // these are here to facilitate the transition when adding
78 // new callbacks (an implementation can check for NULL before
79 // calling a new callback).
80 void (*zero[4])(void);
86 // ---------------------------------------------------------------------------
88 HWComposer::HWComposer(
89 const sp<SurfaceFlinger>& flinger,
90 EventHandler& handler)
92 mFbDev(0), mHwc(0), mNumDisplays(1),
93 mCBContext(new cb_context),
94 mEventHandler(handler),
95 mVSyncCount(0), mDebugForceFakeVSync(false)
97 for (size_t i =0 ; i<MAX_DISPLAYS ; i++) {
101 char value[PROPERTY_VALUE_MAX];
102 property_get("debug.sf.no_hw_vsync", value, "0");
103 mDebugForceFakeVSync = atoi(value);
105 bool needVSyncThread = true;
107 // Note: some devices may insist that the FB HAL be opened before HWC.
108 int fberr = loadFbHalModule();
111 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
112 // close FB HAL if we don't needed it.
113 // FIXME: this is temporary until we're not forced to open FB HAL
115 framebuffer_close(mFbDev);
119 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory.
120 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
122 ALOGE("ERROR: failed to open framebuffer (%s), aborting",
127 // these display IDs are always reserved
128 for (size_t i=0 ; i<NUM_PHYSICAL_DISPLAYS ; i++) {
129 mAllocatedDisplayIDs.markBit(i);
133 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER,
134 (hwcApiVersion(mHwc) >> 24) & 0xff,
135 (hwcApiVersion(mHwc) >> 16) & 0xff);
136 if (mHwc->registerProcs) {
137 mCBContext->hwc = this;
138 mCBContext->procs.invalidate = &hook_invalidate;
139 mCBContext->procs.vsync = &hook_vsync;
140 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
141 mCBContext->procs.hotplug = &hook_hotplug;
143 mCBContext->procs.hotplug = NULL;
144 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero));
145 mHwc->registerProcs(mHwc, &mCBContext->procs);
148 // don't need a vsync thread if we have a hardware composer
149 needVSyncThread = false;
150 // always turn vsync off when we start
151 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
153 // the number of displays we actually have depends on the
154 // hw composer version
155 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) {
156 // 1.2 adds support for virtual displays
157 mNumDisplays = MAX_DISPLAYS;
158 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
159 // 1.1 adds support for multiple displays
160 mNumDisplays = NUM_PHYSICAL_DISPLAYS;
167 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)),
168 "should only have fbdev if no hwc or hwc is 1.0");
170 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]);
171 disp.connected = true;
172 disp.width = mFbDev->width;
173 disp.height = mFbDev->height;
174 disp.format = mFbDev->format;
175 disp.xdpi = mFbDev->xdpi;
176 disp.ydpi = mFbDev->ydpi;
177 if (disp.refresh == 0) {
178 disp.refresh = nsecs_t(1e9 / mFbDev->fps);
179 ALOGW("getting VSYNC period from fb HAL: %lld", disp.refresh);
181 if (disp.refresh == 0) {
182 disp.refresh = nsecs_t(1e9 / 60.0);
183 ALOGW("getting VSYNC period from thin air: %lld",
184 mDisplayData[HWC_DISPLAY_PRIMARY].refresh);
187 // here we're guaranteed to have at least HWC 1.1
188 for (size_t i =0 ; i<NUM_PHYSICAL_DISPLAYS ; i++) {
189 queryDisplayProperties(i);
193 if (needVSyncThread) {
194 // we don't have VSYNC support, we need to fake it
195 mVSyncThread = new VSyncThread(*this);
199 HWComposer::~HWComposer() {
201 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
203 if (mVSyncThread != NULL) {
204 mVSyncThread->requestExitAndWait();
210 framebuffer_close(mFbDev);
215 // Load and prepare the hardware composer module. Sets mHwc.
216 void HWComposer::loadHwcModule()
218 hw_module_t const* module;
220 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) {
221 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID);
225 int err = hwc_open_1(module, &mHwc);
227 ALOGE("%s device failed to initialize (%s)",
228 HWC_HARDWARE_COMPOSER, strerror(-err));
232 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) ||
233 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION ||
234 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) {
235 ALOGE("%s device version %#x unsupported, will not be used",
236 HWC_HARDWARE_COMPOSER, mHwc->common.version);
243 // Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev.
244 int HWComposer::loadFbHalModule()
246 hw_module_t const* module;
248 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
250 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID);
254 return framebuffer_open(module, &mFbDev);
257 status_t HWComposer::initCheck() const {
258 return mHwc ? NO_ERROR : NO_INIT;
261 void HWComposer::hook_invalidate(const struct hwc_procs* procs) {
262 cb_context* ctx = reinterpret_cast<cb_context*>(
263 const_cast<hwc_procs_t*>(procs));
264 ctx->hwc->invalidate();
267 void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp,
269 cb_context* ctx = reinterpret_cast<cb_context*>(
270 const_cast<hwc_procs_t*>(procs));
271 ctx->hwc->vsync(disp, timestamp);
274 void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp,
276 cb_context* ctx = reinterpret_cast<cb_context*>(
277 const_cast<hwc_procs_t*>(procs));
278 ctx->hwc->hotplug(disp, connected);
281 void HWComposer::invalidate() {
282 mFlinger->repaintEverything();
285 void HWComposer::vsync(int disp, int64_t timestamp) {
286 ATRACE_INT("VSYNC", ++mVSyncCount&1);
287 mEventHandler.onVSyncReceived(disp, timestamp);
288 Mutex::Autolock _l(mLock);
289 mLastHwVSync = timestamp;
292 void HWComposer::hotplug(int disp, int connected) {
293 if (disp == HWC_DISPLAY_PRIMARY || disp >= VIRTUAL_DISPLAY_ID_BASE) {
294 ALOGE("hotplug event received for invalid display: disp=%d connected=%d",
298 queryDisplayProperties(disp);
299 mEventHandler.onHotplugReceived(disp, bool(connected));
302 static float getDefaultDensity(uint32_t height) {
303 if (height >= 1080) return ACONFIGURATION_DENSITY_XHIGH;
304 else return ACONFIGURATION_DENSITY_TV;
307 static const uint32_t DISPLAY_ATTRIBUTES[] = {
308 HWC_DISPLAY_VSYNC_PERIOD,
313 HWC_DISPLAY_NO_ATTRIBUTE,
315 #define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0])
317 status_t HWComposer::queryDisplayProperties(int disp) {
319 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
321 // use zero as default value for unspecified attributes
322 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1];
323 memset(values, 0, sizeof(values));
326 size_t numConfigs = 1;
327 status_t err = mHwc->getDisplayConfigs(mHwc, disp, &config, &numConfigs);
328 if (err != NO_ERROR) {
329 // this can happen if an unpluggable display is not connected
330 mDisplayData[disp].connected = false;
334 err = mHwc->getDisplayAttributes(mHwc, disp, config, DISPLAY_ATTRIBUTES, values);
335 if (err != NO_ERROR) {
336 // we can't get this display's info. turn it off.
337 mDisplayData[disp].connected = false;
341 int32_t w = 0, h = 0;
342 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) {
343 switch (DISPLAY_ATTRIBUTES[i]) {
344 case HWC_DISPLAY_VSYNC_PERIOD:
345 mDisplayData[disp].refresh = nsecs_t(values[i]);
347 case HWC_DISPLAY_WIDTH:
348 mDisplayData[disp].width = values[i];
350 case HWC_DISPLAY_HEIGHT:
351 mDisplayData[disp].height = values[i];
353 case HWC_DISPLAY_DPI_X:
354 mDisplayData[disp].xdpi = values[i] / 1000.0f;
356 case HWC_DISPLAY_DPI_Y:
357 mDisplayData[disp].ydpi = values[i] / 1000.0f;
360 ALOG_ASSERT(false, "unknown display attribute[%d] %#x",
361 i, DISPLAY_ATTRIBUTES[i]);
366 // FIXME: what should we set the format to?
367 mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888;
368 mDisplayData[disp].connected = true;
369 if (mDisplayData[disp].xdpi == 0.0f || mDisplayData[disp].ydpi == 0.0f) {
370 float dpi = getDefaultDensity(h);
371 mDisplayData[disp].xdpi = dpi;
372 mDisplayData[disp].ydpi = dpi;
377 status_t HWComposer::setVirtualDisplayProperties(int32_t id,
378 uint32_t w, uint32_t h, uint32_t format) {
379 if (id < VIRTUAL_DISPLAY_ID_BASE || id >= int32_t(mNumDisplays) ||
380 !mAllocatedDisplayIDs.hasBit(id)) {
383 mDisplayData[id].width = w;
384 mDisplayData[id].height = h;
385 mDisplayData[id].format = format;
386 mDisplayData[id].xdpi = mDisplayData[id].ydpi = getDefaultDensity(h);
390 int32_t HWComposer::allocateDisplayId() {
391 if (mAllocatedDisplayIDs.count() >= mNumDisplays) {
394 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit();
395 mAllocatedDisplayIDs.markBit(id);
396 mDisplayData[id].connected = true;
400 status_t HWComposer::freeDisplayId(int32_t id) {
401 if (id < NUM_PHYSICAL_DISPLAYS) {
402 // cannot free the reserved IDs
405 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
408 mAllocatedDisplayIDs.clearBit(id);
409 mDisplayData[id].connected = false;
413 nsecs_t HWComposer::getRefreshPeriod(int disp) const {
414 return mDisplayData[disp].refresh;
417 nsecs_t HWComposer::getRefreshTimestamp(int disp) const {
418 // this returns the last refresh timestamp.
419 // if the last one is not available, we estimate it based on
420 // the refresh period and whatever closest timestamp we have.
421 Mutex::Autolock _l(mLock);
422 nsecs_t now = systemTime(CLOCK_MONOTONIC);
423 return now - ((now - mLastHwVSync) % mDisplayData[disp].refresh);
426 sp<Fence> HWComposer::getDisplayFence(int disp) const {
427 return mDisplayData[disp].lastDisplayFence;
430 uint32_t HWComposer::getWidth(int disp) const {
431 return mDisplayData[disp].width;
434 uint32_t HWComposer::getHeight(int disp) const {
435 return mDisplayData[disp].height;
438 uint32_t HWComposer::getFormat(int disp) const {
439 return mDisplayData[disp].format;
442 float HWComposer::getDpiX(int disp) const {
443 return mDisplayData[disp].xdpi;
446 float HWComposer::getDpiY(int disp) const {
447 return mDisplayData[disp].ydpi;
450 bool HWComposer::isConnected(int disp) const {
451 return mDisplayData[disp].connected;
454 void HWComposer::eventControl(int disp, int event, int enabled) {
455 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) {
456 ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)",
457 event, disp, enabled);
460 if (event != EVENT_VSYNC) {
461 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)",
462 event, disp, enabled);
465 status_t err = NO_ERROR;
466 if (mHwc && !mDebugForceFakeVSync) {
467 // NOTE: we use our own internal lock here because we have to call
468 // into the HWC with the lock held, and we want to make sure
469 // that even if HWC blocks (which it shouldn't), it won't
470 // affect other threads.
471 Mutex::Autolock _l(mEventControlLock);
472 const int32_t eventBit = 1UL << event;
473 const int32_t newValue = enabled ? eventBit : 0;
474 const int32_t oldValue = mDisplayData[disp].events & eventBit;
475 if (newValue != oldValue) {
477 err = mHwc->eventControl(mHwc, disp, event, enabled);
479 int32_t& events(mDisplayData[disp].events);
480 events = (events & ~eventBit) | newValue;
483 // error here should not happen -- not sure what we should
485 ALOGE_IF(err, "eventControl(%d, %d) failed %s",
486 event, enabled, strerror(-err));
489 if (err == NO_ERROR && mVSyncThread != NULL) {
490 mVSyncThread->setEnabled(enabled);
494 status_t HWComposer::createWorkList(int32_t id, size_t numLayers) {
495 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
500 DisplayData& disp(mDisplayData[id]);
501 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
502 // we need space for the HWC_FRAMEBUFFER_TARGET
505 if (disp.capacity < numLayers || disp.list == NULL) {
506 size_t size = sizeof(hwc_display_contents_1_t)
507 + numLayers * sizeof(hwc_layer_1_t);
509 disp.list = (hwc_display_contents_1_t*)malloc(size);
510 disp.capacity = numLayers;
512 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
513 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1];
514 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t));
515 const hwc_rect_t r = { 0, 0, (int) disp.width, (int) disp.height };
516 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET;
517 disp.framebufferTarget->hints = 0;
518 disp.framebufferTarget->flags = 0;
519 disp.framebufferTarget->handle = disp.fbTargetHandle;
520 disp.framebufferTarget->transform = 0;
521 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT;
522 disp.framebufferTarget->sourceCrop = r;
523 disp.framebufferTarget->displayFrame = r;
524 disp.framebufferTarget->visibleRegionScreen.numRects = 1;
525 disp.framebufferTarget->visibleRegionScreen.rects =
526 &disp.framebufferTarget->displayFrame;
527 disp.framebufferTarget->acquireFenceFd = -1;
528 disp.framebufferTarget->releaseFenceFd = -1;
529 disp.framebufferTarget->planeAlpha = 0xFF;
531 disp.list->retireFenceFd = -1;
532 disp.list->flags = HWC_GEOMETRY_CHANGED;
533 disp.list->numHwLayers = numLayers;
538 status_t HWComposer::setFramebufferTarget(int32_t id,
539 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) {
540 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
543 DisplayData& disp(mDisplayData[id]);
544 if (!disp.framebufferTarget) {
545 // this should never happen, but apparently eglCreateWindowSurface()
546 // triggers a Surface::queueBuffer() on some
547 // devices (!?) -- log and ignore.
548 ALOGE("HWComposer: framebufferTarget is null");
555 int acquireFenceFd = -1;
556 if (acquireFence->isValid()) {
557 acquireFenceFd = acquireFence->dup();
560 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd);
561 disp.fbTargetHandle = buf->handle;
562 disp.framebufferTarget->handle = disp.fbTargetHandle;
563 disp.framebufferTarget->acquireFenceFd = acquireFenceFd;
567 status_t HWComposer::prepare() {
568 for (size_t i=0 ; i<mNumDisplays ; i++) {
569 DisplayData& disp(mDisplayData[i]);
570 if (disp.framebufferTarget) {
571 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET
572 // DO NOT reset the handle field to NULL, because it's possible
573 // that we have nothing to redraw (eg: eglSwapBuffers() not called)
574 // in which case, we should continue to use the same buffer.
575 LOG_FATAL_IF(disp.list == NULL);
576 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET;
578 if (!disp.connected && disp.list != NULL) {
579 ALOGW("WARNING: disp %d: connected, non-null list, layers=%d",
580 i, disp.list->numHwLayers);
582 mLists[i] = disp.list;
584 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) {
585 mLists[i]->outbuf = NULL;
586 mLists[i]->outbufAcquireFenceFd = -1;
587 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
588 // garbage data to catch improper use
589 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF;
590 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF;
592 mLists[i]->dpy = EGL_NO_DISPLAY;
593 mLists[i]->sur = EGL_NO_SURFACE;
598 int err = mHwc->prepare(mHwc, mNumDisplays, mLists);
599 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err));
601 if (err == NO_ERROR) {
602 // here we're just making sure that "skip" layers are set
603 // to HWC_FRAMEBUFFER and we're also counting how many layers
604 // we have of each type.
605 for (size_t i=0 ; i<mNumDisplays ; i++) {
606 DisplayData& disp(mDisplayData[i]);
607 disp.hasFbComp = false;
608 disp.hasOvComp = false;
610 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
611 hwc_layer_1_t& l = disp.list->hwLayers[i];
613 //ALOGD("prepare: %d, type=%d, handle=%p",
614 // i, l.compositionType, l.handle);
616 if (l.flags & HWC_SKIP_LAYER) {
617 l.compositionType = HWC_FRAMEBUFFER;
619 if (l.compositionType == HWC_FRAMEBUFFER) {
620 disp.hasFbComp = true;
622 if (l.compositionType == HWC_OVERLAY) {
623 disp.hasOvComp = true;
629 return (status_t)err;
632 bool HWComposer::hasHwcComposition(int32_t id) const {
633 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
635 return mDisplayData[id].hasOvComp;
638 bool HWComposer::hasGlesComposition(int32_t id) const {
639 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
641 return mDisplayData[id].hasFbComp;
644 sp<Fence> HWComposer::getAndResetReleaseFence(int32_t id) {
645 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
646 return Fence::NO_FENCE;
648 int fd = INVALID_OPERATION;
649 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
650 const DisplayData& disp(mDisplayData[id]);
651 if (disp.framebufferTarget) {
652 fd = disp.framebufferTarget->releaseFenceFd;
653 disp.framebufferTarget->acquireFenceFd = -1;
654 disp.framebufferTarget->releaseFenceFd = -1;
657 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
660 status_t HWComposer::commit() {
663 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
664 // On version 1.0, the OpenGL ES target surface is communicated
665 // by the (dpy, sur) fields and we are guaranteed to have only
667 mLists[0]->dpy = eglGetCurrentDisplay();
668 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW);
671 for (size_t i=VIRTUAL_DISPLAY_ID_BASE; i<mNumDisplays; i++) {
672 DisplayData& disp(mDisplayData[i]);
673 if (disp.outbufHandle) {
674 mLists[i]->outbuf = disp.outbufHandle;
675 mLists[i]->outbufAcquireFenceFd =
676 disp.outbufAcquireFence->dup();
680 err = mHwc->set(mHwc, mNumDisplays, mLists);
682 for (size_t i=0 ; i<mNumDisplays ; i++) {
683 DisplayData& disp(mDisplayData[i]);
684 disp.lastDisplayFence = disp.lastRetireFence;
685 disp.lastRetireFence = Fence::NO_FENCE;
687 if (disp.list->retireFenceFd != -1) {
688 disp.lastRetireFence = new Fence(disp.list->retireFenceFd);
689 disp.list->retireFenceFd = -1;
691 disp.list->flags &= ~HWC_GEOMETRY_CHANGED;
695 return (status_t)err;
698 status_t HWComposer::release(int disp) {
699 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE);
701 eventControl(disp, HWC_EVENT_VSYNC, 0);
702 return (status_t)mHwc->blank(mHwc, disp, 1);
707 status_t HWComposer::acquire(int disp) {
708 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE);
710 return (status_t)mHwc->blank(mHwc, disp, 0);
715 void HWComposer::disconnectDisplay(int disp) {
716 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY);
717 DisplayData& dd(mDisplayData[disp]);
720 dd.framebufferTarget = NULL; // points into dd.list
721 dd.fbTargetHandle = NULL;
722 dd.outbufHandle = NULL;
723 dd.lastRetireFence = Fence::NO_FENCE;
724 dd.lastDisplayFence = Fence::NO_FENCE;
725 dd.outbufAcquireFence = Fence::NO_FENCE;
728 int HWComposer::getVisualID() const {
729 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
730 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED
731 // is supported by the implementation. we can only be in this case
732 // if we have HWC 1.1
733 return HAL_PIXEL_FORMAT_RGBA_8888;
734 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
736 return mFbDev->format;
740 bool HWComposer::supportsFramebufferTarget() const {
741 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
744 int HWComposer::fbPost(int32_t id,
745 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) {
746 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
747 return setFramebufferTarget(id, acquireFence, buffer);
749 acquireFence->waitForever(1000, "HWComposer::fbPost");
750 return mFbDev->post(mFbDev, buffer->handle);
754 int HWComposer::fbCompositionComplete() {
755 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
758 if (mFbDev->compositionComplete) {
759 return mFbDev->compositionComplete(mFbDev);
761 return INVALID_OPERATION;
765 void HWComposer::fbDump(String8& result) {
766 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) {
767 const size_t SIZE = 4096;
769 mFbDev->dump(mFbDev, buffer, SIZE);
770 result.append(buffer);
774 status_t HWComposer::setOutputBuffer(int32_t id, const sp<Fence>& acquireFence,
775 const sp<GraphicBuffer>& buf) {
776 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
778 if (id < VIRTUAL_DISPLAY_ID_BASE)
779 return INVALID_OPERATION;
781 DisplayData& disp(mDisplayData[id]);
782 disp.outbufHandle = buf->handle;
783 disp.outbufAcquireFence = acquireFence;
787 sp<Fence> HWComposer::getLastRetireFence(int32_t id) {
788 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
789 return Fence::NO_FENCE;
790 return mDisplayData[id].lastRetireFence;
794 * Helper template to implement a concrete HWCLayer
795 * This holds the pointer to the concrete hwc layer type
796 * and implements the "iterable" side of HWCLayer.
798 template<typename CONCRETE, typename HWCTYPE>
799 class Iterable : public HWComposer::HWCLayer {
801 HWCTYPE* const mLayerList;
802 HWCTYPE* mCurrentLayer;
803 Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { }
804 inline HWCTYPE const * getLayer() const { return mCurrentLayer; }
805 inline HWCTYPE* getLayer() { return mCurrentLayer; }
806 virtual ~Iterable() { }
808 // returns a copy of ourselves
809 virtual HWComposer::HWCLayer* dup() {
810 return new CONCRETE( static_cast<const CONCRETE&>(*this) );
812 virtual status_t setLayer(size_t index) {
813 mCurrentLayer = &mLayerList[index];
819 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0.
820 * This implements the HWCLayer side of HWCIterableLayer.
822 class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> {
823 struct hwc_composer_device_1* mHwc;
825 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer)
826 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { }
828 virtual int32_t getCompositionType() const {
829 return getLayer()->compositionType;
831 virtual uint32_t getHints() const {
832 return getLayer()->hints;
834 virtual sp<Fence> getAndResetReleaseFence() {
835 int fd = getLayer()->releaseFenceFd;
836 getLayer()->releaseFenceFd = -1;
837 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
839 virtual void setAcquireFenceFd(int fenceFd) {
840 getLayer()->acquireFenceFd = fenceFd;
842 virtual void setPerFrameDefaultState() {
843 //getLayer()->compositionType = HWC_FRAMEBUFFER;
845 virtual void setPlaneAlpha(uint8_t alpha) {
846 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) {
847 getLayer()->planeAlpha = alpha;
850 getLayer()->flags |= HWC_SKIP_LAYER;
854 virtual void setDefaultState() {
855 hwc_layer_1_t* const l = getLayer();
856 l->compositionType = HWC_FRAMEBUFFER;
858 l->flags = HWC_SKIP_LAYER;
861 l->blending = HWC_BLENDING_NONE;
862 l->visibleRegionScreen.numRects = 0;
863 l->visibleRegionScreen.rects = NULL;
864 l->acquireFenceFd = -1;
865 l->releaseFenceFd = -1;
866 l->planeAlpha = 0xFF;
868 virtual void setSkip(bool skip) {
870 getLayer()->flags |= HWC_SKIP_LAYER;
872 getLayer()->flags &= ~HWC_SKIP_LAYER;
875 virtual void setBlending(uint32_t blending) {
876 getLayer()->blending = blending;
878 virtual void setTransform(uint32_t transform) {
879 getLayer()->transform = transform;
881 virtual void setFrame(const Rect& frame) {
882 reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame;
884 virtual void setCrop(const Rect& crop) {
885 reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop;
887 virtual void setVisibleRegionScreen(const Region& reg) {
888 // Region::getSharedBuffer creates a reference to the underlying
889 // SharedBuffer of this Region, this reference is freed
891 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen;
892 SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects);
893 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data());
895 virtual void setBuffer(const sp<GraphicBuffer>& buffer) {
896 if (buffer == 0 || buffer->handle == 0) {
897 getLayer()->compositionType = HWC_FRAMEBUFFER;
898 getLayer()->flags |= HWC_SKIP_LAYER;
899 getLayer()->handle = 0;
901 getLayer()->handle = buffer->handle;
904 virtual void onDisplayed() {
905 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen;
906 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects);
909 // not technically needed but safer
910 visibleRegion.numRects = 0;
911 visibleRegion.rects = NULL;
914 getLayer()->acquireFenceFd = -1;
919 * returns an iterator initialized at a given index in the layer list
921 HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) {
922 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
923 return LayerListIterator();
925 const DisplayData& disp(mDisplayData[id]);
926 if (!mHwc || !disp.list || index > disp.list->numHwLayers) {
927 return LayerListIterator();
929 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers), index);
933 * returns an iterator on the beginning of the layer list
935 HWComposer::LayerListIterator HWComposer::begin(int32_t id) {
936 return getLayerIterator(id, 0);
940 * returns an iterator on the end of the layer list
942 HWComposer::LayerListIterator HWComposer::end(int32_t id) {
943 size_t numLayers = 0;
944 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) {
945 const DisplayData& disp(mDisplayData[id]);
946 if (mHwc && disp.list) {
947 numLayers = disp.list->numHwLayers;
948 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
949 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET,
950 // which we ignore when iterating through the layer list.
951 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id);
958 return getLayerIterator(id, numLayers);
961 void HWComposer::dump(String8& result, char* buffer, size_t SIZE) const {
963 result.appendFormat("Hardware Composer state (version %8x):\n", hwcApiVersion(mHwc));
964 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync);
965 for (size_t i=0 ; i<mNumDisplays ; i++) {
966 const DisplayData& disp(mDisplayData[i]);
970 const Vector< sp<Layer> >& visibleLayersSortedByZ =
971 mFlinger->getLayerSortedByZForHwcDisplay(i);
974 " Display[%d] : %ux%u, xdpi=%f, ydpi=%f, refresh=%lld\n",
975 i, disp.width, disp.height, disp.xdpi, disp.ydpi, disp.refresh);
979 " numHwLayers=%u, flags=%08x\n",
980 disp.list->numHwLayers, disp.list->flags);
983 " type | handle | hints | flags | tr | blend | format | source crop | frame name \n"
984 "------------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n");
985 // " __________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____]
986 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
987 const hwc_layer_1_t&l = disp.list->hwLayers[i];
989 String8 name("unknown");
991 if (i < visibleLayersSortedByZ.size()) {
992 const sp<Layer>& layer(visibleLayersSortedByZ[i]);
993 const sp<GraphicBuffer>& buffer(
994 layer->getActiveBuffer());
995 if (buffer != NULL) {
996 format = buffer->getPixelFormat();
998 name = layer->getName();
1001 int type = l.compositionType;
1002 if (type == HWC_FRAMEBUFFER_TARGET) {
1003 name = "HWC_FRAMEBUFFER_TARGET";
1004 format = disp.format;
1007 static char const* compositionTypeName[] = {
1013 if (type >= NELEM(compositionTypeName))
1014 type = NELEM(compositionTypeName) - 1;
1016 result.appendFormat(
1017 " %10s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n",
1018 compositionTypeName[type],
1019 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format,
1020 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom,
1021 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom,
1028 if (mHwc && mHwc->dump) {
1029 mHwc->dump(mHwc, buffer, SIZE);
1030 result.append(buffer);
1034 // ---------------------------------------------------------------------------
1036 HWComposer::VSyncThread::VSyncThread(HWComposer& hwc)
1037 : mHwc(hwc), mEnabled(false),
1039 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY))
1043 void HWComposer::VSyncThread::setEnabled(bool enabled) {
1044 Mutex::Autolock _l(mLock);
1045 if (mEnabled != enabled) {
1047 mCondition.signal();
1051 void HWComposer::VSyncThread::onFirstRef() {
1052 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE);
1055 bool HWComposer::VSyncThread::threadLoop() {
1057 Mutex::Autolock _l(mLock);
1059 mCondition.wait(mLock);
1063 const nsecs_t period = mRefreshPeriod;
1064 const nsecs_t now = systemTime(CLOCK_MONOTONIC);
1065 nsecs_t next_vsync = mNextFakeVSync;
1066 nsecs_t sleep = next_vsync - now;
1068 // we missed, find where the next vsync should be
1069 sleep = (period - ((now - next_vsync) % period));
1070 next_vsync = now + sleep;
1072 mNextFakeVSync = next_vsync + period;
1074 struct timespec spec;
1075 spec.tv_sec = next_vsync / 1000000000;
1076 spec.tv_nsec = next_vsync % 1000000000;
1080 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
1081 } while (err<0 && errno == EINTR);
1084 mHwc.mEventHandler.onVSyncReceived(0, next_vsync);
1090 HWComposer::DisplayData::DisplayData()
1091 : width(0), height(0), format(0),
1092 xdpi(0.0f), ydpi(0.0f),
1095 hasFbComp(false), hasOvComp(false),
1096 capacity(0), list(NULL),
1097 framebufferTarget(NULL), fbTargetHandle(0),
1098 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE),
1099 outbufHandle(NULL), outbufAcquireFence(Fence::NO_FENCE),
1103 HWComposer::DisplayData::~DisplayData() {
1107 // ---------------------------------------------------------------------------
1108 }; // namespace android