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 // This is not a real HWC version. It's used for in-development features that
54 // haven't been committed to a specific real HWC version.
55 #define HWC_DEVICE_API_VERSION_1_EXP HARDWARE_DEVICE_API_VERSION_2(1, 0xFF, HWC_HEADER_VERSION)
57 #define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION
59 #define NUM_PHYSICAL_DISPLAYS HWC_NUM_DISPLAY_TYPES
60 #define VIRTUAL_DISPLAY_ID_BASE HWC_NUM_DISPLAY_TYPES
62 static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) {
63 uint32_t hwcVersion = hwc->common.version;
64 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK;
67 static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) {
68 uint32_t hwcVersion = hwc->common.version;
69 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK;
72 static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc,
74 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK);
77 // ---------------------------------------------------------------------------
79 struct HWComposer::cb_context {
80 struct callbacks : public hwc_procs_t {
81 // these are here to facilitate the transition when adding
82 // new callbacks (an implementation can check for NULL before
83 // calling a new callback).
84 void (*zero[4])(void);
90 // ---------------------------------------------------------------------------
92 HWComposer::HWComposer(
93 const sp<SurfaceFlinger>& flinger,
94 EventHandler& handler)
96 mFbDev(0), mHwc(0), mNumDisplays(1),
97 mCBContext(new cb_context),
98 mEventHandler(handler),
99 mVSyncCount(0), mDebugForceFakeVSync(false)
101 for (size_t i =0 ; i<MAX_DISPLAYS ; i++) {
105 char value[PROPERTY_VALUE_MAX];
106 property_get("debug.sf.no_hw_vsync", value, "0");
107 mDebugForceFakeVSync = atoi(value);
109 bool needVSyncThread = true;
111 // Note: some devices may insist that the FB HAL be opened before HWC.
112 int fberr = loadFbHalModule();
115 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
116 // close FB HAL if we don't needed it.
117 // FIXME: this is temporary until we're not forced to open FB HAL
119 framebuffer_close(mFbDev);
123 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory.
124 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
126 ALOGE("ERROR: failed to open framebuffer (%s), aborting",
131 // these display IDs are always reserved
132 for (size_t i=0 ; i<NUM_PHYSICAL_DISPLAYS ; i++) {
133 mAllocatedDisplayIDs.markBit(i);
137 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER,
138 (hwcApiVersion(mHwc) >> 24) & 0xff,
139 (hwcApiVersion(mHwc) >> 16) & 0xff);
140 if (mHwc->registerProcs) {
141 mCBContext->hwc = this;
142 mCBContext->procs.invalidate = &hook_invalidate;
143 mCBContext->procs.vsync = &hook_vsync;
144 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
145 mCBContext->procs.hotplug = &hook_hotplug;
147 mCBContext->procs.hotplug = NULL;
148 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero));
149 mHwc->registerProcs(mHwc, &mCBContext->procs);
152 // don't need a vsync thread if we have a hardware composer
153 needVSyncThread = false;
154 // always turn vsync off when we start
155 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
157 // the number of displays we actually have depends on the
158 // hw composer version
159 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_EXP)) {
160 // 1.?? adds support for virtual displays
161 mNumDisplays = MAX_DISPLAYS;
162 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
163 // 1.1 adds support for multiple displays
164 mNumDisplays = NUM_PHYSICAL_DISPLAYS;
171 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)),
172 "should only have fbdev if no hwc or hwc is 1.0");
174 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]);
175 disp.connected = true;
176 disp.width = mFbDev->width;
177 disp.height = mFbDev->height;
178 disp.format = mFbDev->format;
179 disp.xdpi = mFbDev->xdpi;
180 disp.ydpi = mFbDev->ydpi;
181 if (disp.refresh == 0) {
182 disp.refresh = nsecs_t(1e9 / mFbDev->fps);
183 ALOGW("getting VSYNC period from fb HAL: %lld", disp.refresh);
185 if (disp.refresh == 0) {
186 disp.refresh = nsecs_t(1e9 / 60.0);
187 ALOGW("getting VSYNC period from thin air: %lld",
188 mDisplayData[HWC_DISPLAY_PRIMARY].refresh);
191 // here we're guaranteed to have at least HWC 1.1
192 for (size_t i =0 ; i<NUM_PHYSICAL_DISPLAYS ; i++) {
193 queryDisplayProperties(i);
197 if (needVSyncThread) {
198 // we don't have VSYNC support, we need to fake it
199 mVSyncThread = new VSyncThread(*this);
203 HWComposer::~HWComposer() {
205 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
207 if (mVSyncThread != NULL) {
208 mVSyncThread->requestExitAndWait();
214 framebuffer_close(mFbDev);
219 // Load and prepare the hardware composer module. Sets mHwc.
220 void HWComposer::loadHwcModule()
222 hw_module_t const* module;
224 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) {
225 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID);
229 int err = hwc_open_1(module, &mHwc);
231 ALOGE("%s device failed to initialize (%s)",
232 HWC_HARDWARE_COMPOSER, strerror(-err));
236 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) ||
237 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION ||
238 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) {
239 ALOGE("%s device version %#x unsupported, will not be used",
240 HWC_HARDWARE_COMPOSER, mHwc->common.version);
247 // Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev.
248 int HWComposer::loadFbHalModule()
250 hw_module_t const* module;
252 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
254 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID);
258 return framebuffer_open(module, &mFbDev);
261 status_t HWComposer::initCheck() const {
262 return mHwc ? NO_ERROR : NO_INIT;
265 void HWComposer::hook_invalidate(const struct hwc_procs* procs) {
266 cb_context* ctx = reinterpret_cast<cb_context*>(
267 const_cast<hwc_procs_t*>(procs));
268 ctx->hwc->invalidate();
271 void HWComposer::hook_vsync(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->vsync(disp, timestamp);
278 void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp,
280 cb_context* ctx = reinterpret_cast<cb_context*>(
281 const_cast<hwc_procs_t*>(procs));
282 ctx->hwc->hotplug(disp, connected);
285 void HWComposer::invalidate() {
286 mFlinger->repaintEverything();
289 void HWComposer::vsync(int disp, int64_t timestamp) {
290 ATRACE_INT("VSYNC", ++mVSyncCount&1);
291 mEventHandler.onVSyncReceived(disp, timestamp);
292 Mutex::Autolock _l(mLock);
293 mLastHwVSync = timestamp;
296 void HWComposer::hotplug(int disp, int connected) {
297 if (disp == HWC_DISPLAY_PRIMARY || disp >= VIRTUAL_DISPLAY_ID_BASE) {
298 ALOGE("hotplug event received for invalid display: disp=%d connected=%d",
302 queryDisplayProperties(disp);
303 mEventHandler.onHotplugReceived(disp, bool(connected));
306 static float getDefaultDensity(uint32_t height) {
307 if (height >= 1080) return ACONFIGURATION_DENSITY_XHIGH;
308 else return ACONFIGURATION_DENSITY_TV;
311 static const uint32_t DISPLAY_ATTRIBUTES[] = {
312 HWC_DISPLAY_VSYNC_PERIOD,
317 HWC_DISPLAY_NO_ATTRIBUTE,
319 #define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0])
321 status_t HWComposer::queryDisplayProperties(int disp) {
323 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
325 // use zero as default value for unspecified attributes
326 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1];
327 memset(values, 0, sizeof(values));
330 size_t numConfigs = 1;
331 status_t err = mHwc->getDisplayConfigs(mHwc, disp, &config, &numConfigs);
332 if (err != NO_ERROR) {
333 // this can happen if an unpluggable display is not connected
334 mDisplayData[disp].connected = false;
338 err = mHwc->getDisplayAttributes(mHwc, disp, config, DISPLAY_ATTRIBUTES, values);
339 if (err != NO_ERROR) {
340 // we can't get this display's info. turn it off.
341 mDisplayData[disp].connected = false;
345 int32_t w = 0, h = 0;
346 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) {
347 switch (DISPLAY_ATTRIBUTES[i]) {
348 case HWC_DISPLAY_VSYNC_PERIOD:
349 mDisplayData[disp].refresh = nsecs_t(values[i]);
351 case HWC_DISPLAY_WIDTH:
352 mDisplayData[disp].width = values[i];
354 case HWC_DISPLAY_HEIGHT:
355 mDisplayData[disp].height = values[i];
357 case HWC_DISPLAY_DPI_X:
358 mDisplayData[disp].xdpi = values[i] / 1000.0f;
360 case HWC_DISPLAY_DPI_Y:
361 mDisplayData[disp].ydpi = values[i] / 1000.0f;
364 ALOG_ASSERT(false, "unknown display attribute[%d] %#x",
365 i, DISPLAY_ATTRIBUTES[i]);
370 // FIXME: what should we set the format to?
371 mDisplayData[disp].format = HAL_PIXEL_FORMAT_BGRA_8888;
372 mDisplayData[disp].connected = true;
373 if (mDisplayData[disp].xdpi == 0.0f || mDisplayData[disp].ydpi == 0.0f) {
374 float dpi = getDefaultDensity(h);
375 mDisplayData[disp].xdpi = dpi;
376 mDisplayData[disp].ydpi = dpi;
381 status_t HWComposer::setVirtualDisplayProperties(int32_t id,
382 uint32_t w, uint32_t h, uint32_t format) {
383 if (id < VIRTUAL_DISPLAY_ID_BASE || id >= int32_t(mNumDisplays) ||
384 !mAllocatedDisplayIDs.hasBit(id)) {
387 mDisplayData[id].width = w;
388 mDisplayData[id].height = h;
389 mDisplayData[id].format = format;
390 mDisplayData[id].xdpi = mDisplayData[id].ydpi = getDefaultDensity(h);
394 int32_t HWComposer::allocateDisplayId() {
395 if (mAllocatedDisplayIDs.count() >= mNumDisplays) {
398 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit();
399 mAllocatedDisplayIDs.markBit(id);
400 mDisplayData[id].connected = true;
404 status_t HWComposer::freeDisplayId(int32_t id) {
405 if (id < NUM_PHYSICAL_DISPLAYS) {
406 // cannot free the reserved IDs
409 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
412 mAllocatedDisplayIDs.clearBit(id);
413 mDisplayData[id].connected = false;
417 nsecs_t HWComposer::getRefreshPeriod(int disp) const {
418 return mDisplayData[disp].refresh;
421 nsecs_t HWComposer::getRefreshTimestamp(int disp) const {
422 // this returns the last refresh timestamp.
423 // if the last one is not available, we estimate it based on
424 // the refresh period and whatever closest timestamp we have.
425 Mutex::Autolock _l(mLock);
426 nsecs_t now = systemTime(CLOCK_MONOTONIC);
427 return now - ((now - mLastHwVSync) % mDisplayData[disp].refresh);
430 sp<Fence> HWComposer::getDisplayFence(int disp) const {
431 return mDisplayData[disp].lastDisplayFence;
434 uint32_t HWComposer::getWidth(int disp) const {
435 return mDisplayData[disp].width;
438 uint32_t HWComposer::getHeight(int disp) const {
439 return mDisplayData[disp].height;
442 uint32_t HWComposer::getFormat(int disp) const {
443 return mDisplayData[disp].format;
446 float HWComposer::getDpiX(int disp) const {
447 return mDisplayData[disp].xdpi;
450 float HWComposer::getDpiY(int disp) const {
451 return mDisplayData[disp].ydpi;
454 bool HWComposer::isConnected(int disp) const {
455 return mDisplayData[disp].connected;
458 void HWComposer::eventControl(int disp, int event, int enabled) {
459 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) {
460 ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)",
461 event, disp, enabled);
464 if (event != EVENT_VSYNC) {
465 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)",
466 event, disp, enabled);
469 status_t err = NO_ERROR;
470 if (mHwc && !mDebugForceFakeVSync) {
471 // NOTE: we use our own internal lock here because we have to call
472 // into the HWC with the lock held, and we want to make sure
473 // that even if HWC blocks (which it shouldn't), it won't
474 // affect other threads.
475 Mutex::Autolock _l(mEventControlLock);
476 const int32_t eventBit = 1UL << event;
477 const int32_t newValue = enabled ? eventBit : 0;
478 const int32_t oldValue = mDisplayData[disp].events & eventBit;
479 if (newValue != oldValue) {
481 err = mHwc->eventControl(mHwc, disp, event, enabled);
483 int32_t& events(mDisplayData[disp].events);
484 events = (events & ~eventBit) | newValue;
487 // error here should not happen -- not sure what we should
489 ALOGE_IF(err, "eventControl(%d, %d) failed %s",
490 event, enabled, strerror(-err));
493 if (err == NO_ERROR && mVSyncThread != NULL) {
494 mVSyncThread->setEnabled(enabled);
498 status_t HWComposer::createWorkList(int32_t id, size_t numLayers) {
499 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
504 DisplayData& disp(mDisplayData[id]);
505 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
506 // we need space for the HWC_FRAMEBUFFER_TARGET
509 if (disp.capacity < numLayers || disp.list == NULL) {
510 size_t size = sizeof(hwc_display_contents_1_t)
511 + numLayers * sizeof(hwc_layer_1_t);
513 disp.list = (hwc_display_contents_1_t*)malloc(size);
514 disp.capacity = numLayers;
516 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
517 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1];
518 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t));
519 const hwc_rect_t r = { 0, 0, (int) disp.width, (int) disp.height };
520 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET;
521 disp.framebufferTarget->hints = 0;
522 disp.framebufferTarget->flags = 0;
523 disp.framebufferTarget->handle = disp.fbTargetHandle;
524 disp.framebufferTarget->transform = 0;
525 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT;
526 disp.framebufferTarget->sourceCrop = r;
527 disp.framebufferTarget->displayFrame = r;
528 disp.framebufferTarget->visibleRegionScreen.numRects = 1;
529 disp.framebufferTarget->visibleRegionScreen.rects =
530 &disp.framebufferTarget->displayFrame;
531 disp.framebufferTarget->acquireFenceFd = -1;
532 disp.framebufferTarget->releaseFenceFd = -1;
533 disp.framebufferTarget->planeAlpha = 0xFF;
535 disp.list->retireFenceFd = -1;
536 disp.list->flags = HWC_GEOMETRY_CHANGED;
537 disp.list->numHwLayers = numLayers;
542 status_t HWComposer::setFramebufferTarget(int32_t id,
543 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) {
544 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
547 DisplayData& disp(mDisplayData[id]);
548 if (!disp.framebufferTarget) {
549 // this should never happen, but apparently eglCreateWindowSurface()
550 // triggers a Surface::queueBuffer() on some
551 // devices (!?) -- log and ignore.
552 ALOGE("HWComposer: framebufferTarget is null");
559 int acquireFenceFd = -1;
560 if (acquireFence->isValid()) {
561 acquireFenceFd = acquireFence->dup();
564 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd);
565 disp.fbTargetHandle = buf->handle;
566 disp.framebufferTarget->handle = disp.fbTargetHandle;
567 disp.framebufferTarget->acquireFenceFd = acquireFenceFd;
571 status_t HWComposer::prepare() {
572 for (size_t i=0 ; i<mNumDisplays ; i++) {
573 DisplayData& disp(mDisplayData[i]);
574 if (disp.framebufferTarget) {
575 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET
576 // DO NOT reset the handle field to NULL, because it's possible
577 // that we have nothing to redraw (eg: eglSwapBuffers() not called)
578 // in which case, we should continue to use the same buffer.
579 LOG_FATAL_IF(disp.list == NULL);
580 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET;
582 if (!disp.connected && disp.list != NULL) {
583 ALOGW("WARNING: disp %d: connected, non-null list, layers=%d",
584 i, disp.list->numHwLayers);
586 mLists[i] = disp.list;
588 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_EXP)) {
589 mLists[i]->outbuf = NULL;
590 mLists[i]->outbufAcquireFenceFd = -1;
591 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
592 // garbage data to catch improper use
593 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF;
594 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF;
596 mLists[i]->dpy = EGL_NO_DISPLAY;
597 mLists[i]->sur = EGL_NO_SURFACE;
602 int err = mHwc->prepare(mHwc, mNumDisplays, mLists);
603 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err));
605 if (err == NO_ERROR) {
606 // here we're just making sure that "skip" layers are set
607 // to HWC_FRAMEBUFFER and we're also counting how many layers
608 // we have of each type.
609 for (size_t i=0 ; i<mNumDisplays ; i++) {
610 DisplayData& disp(mDisplayData[i]);
611 disp.hasFbComp = false;
612 disp.hasOvComp = false;
614 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
615 hwc_layer_1_t& l = disp.list->hwLayers[i];
617 //ALOGD("prepare: %d, type=%d, handle=%p",
618 // i, l.compositionType, l.handle);
620 if (l.flags & HWC_SKIP_LAYER) {
621 l.compositionType = HWC_FRAMEBUFFER;
623 if (l.compositionType == HWC_FRAMEBUFFER) {
624 disp.hasFbComp = true;
626 if (l.compositionType == HWC_OVERLAY) {
627 disp.hasOvComp = true;
633 return (status_t)err;
636 bool HWComposer::hasHwcComposition(int32_t id) const {
637 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
639 return mDisplayData[id].hasOvComp;
642 bool HWComposer::hasGlesComposition(int32_t id) const {
643 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
645 return mDisplayData[id].hasFbComp;
648 sp<Fence> HWComposer::getAndResetReleaseFence(int32_t id) {
649 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
650 return Fence::NO_FENCE;
652 int fd = INVALID_OPERATION;
653 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
654 const DisplayData& disp(mDisplayData[id]);
655 if (disp.framebufferTarget) {
656 fd = disp.framebufferTarget->releaseFenceFd;
657 disp.framebufferTarget->acquireFenceFd = -1;
658 disp.framebufferTarget->releaseFenceFd = -1;
661 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
664 status_t HWComposer::commit() {
667 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
668 // On version 1.0, the OpenGL ES target surface is communicated
669 // by the (dpy, sur) fields and we are guaranteed to have only
671 mLists[0]->dpy = eglGetCurrentDisplay();
672 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW);
675 for (size_t i=VIRTUAL_DISPLAY_ID_BASE; i<mNumDisplays; i++) {
676 DisplayData& disp(mDisplayData[i]);
677 if (disp.outbufHandle) {
678 mLists[i]->outbuf = disp.outbufHandle;
679 mLists[i]->outbufAcquireFenceFd =
680 disp.outbufAcquireFence->dup();
684 err = mHwc->set(mHwc, mNumDisplays, mLists);
686 for (size_t i=0 ; i<mNumDisplays ; i++) {
687 DisplayData& disp(mDisplayData[i]);
688 disp.lastDisplayFence = disp.lastRetireFence;
689 disp.lastRetireFence = Fence::NO_FENCE;
691 if (disp.list->retireFenceFd != -1) {
692 disp.lastRetireFence = new Fence(disp.list->retireFenceFd);
693 disp.list->retireFenceFd = -1;
695 disp.list->flags &= ~HWC_GEOMETRY_CHANGED;
699 return (status_t)err;
702 status_t HWComposer::release(int disp) {
703 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE);
705 eventControl(disp, HWC_EVENT_VSYNC, 0);
706 return (status_t)mHwc->blank(mHwc, disp, 1);
711 status_t HWComposer::acquire(int disp) {
712 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE);
714 return (status_t)mHwc->blank(mHwc, disp, 0);
719 void HWComposer::disconnectDisplay(int disp) {
720 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY);
721 DisplayData& dd(mDisplayData[disp]);
724 dd.framebufferTarget = NULL; // points into dd.list
725 dd.fbTargetHandle = NULL;
726 dd.outbufHandle = NULL;
727 dd.lastRetireFence = Fence::NO_FENCE;
728 dd.lastDisplayFence = Fence::NO_FENCE;
729 dd.outbufAcquireFence = Fence::NO_FENCE;
732 int HWComposer::getVisualID() const {
733 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
734 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED
735 // is supported by the implementation. we can only be in this case
736 // if we have HWC 1.1
737 return HAL_PIXEL_FORMAT_BGRA_8888;
738 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
740 return mFbDev->format;
744 bool HWComposer::supportsFramebufferTarget() const {
745 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
748 int HWComposer::fbPost(int32_t id,
749 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) {
750 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
751 return setFramebufferTarget(id, acquireFence, buffer);
753 acquireFence->waitForever("HWComposer::fbPost");
754 return mFbDev->post(mFbDev, buffer->handle);
758 int HWComposer::fbCompositionComplete() {
759 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
762 if (mFbDev->compositionComplete) {
763 return mFbDev->compositionComplete(mFbDev);
765 return INVALID_OPERATION;
769 void HWComposer::fbDump(String8& result) {
770 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) {
771 const size_t SIZE = 4096;
773 mFbDev->dump(mFbDev, buffer, SIZE);
774 result.append(buffer);
778 status_t HWComposer::setOutputBuffer(int32_t id, const sp<Fence>& acquireFence,
779 const sp<GraphicBuffer>& buf) {
780 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
782 if (id < VIRTUAL_DISPLAY_ID_BASE)
783 return INVALID_OPERATION;
785 DisplayData& disp(mDisplayData[id]);
786 disp.outbufHandle = buf->handle;
787 disp.outbufAcquireFence = acquireFence;
791 sp<Fence> HWComposer::getLastRetireFence(int32_t id) {
792 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
793 return Fence::NO_FENCE;
794 return mDisplayData[id].lastRetireFence;
798 * Helper template to implement a concrete HWCLayer
799 * This holds the pointer to the concrete hwc layer type
800 * and implements the "iterable" side of HWCLayer.
802 template<typename CONCRETE, typename HWCTYPE>
803 class Iterable : public HWComposer::HWCLayer {
805 HWCTYPE* const mLayerList;
806 HWCTYPE* mCurrentLayer;
807 Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { }
808 inline HWCTYPE const * getLayer() const { return mCurrentLayer; }
809 inline HWCTYPE* getLayer() { return mCurrentLayer; }
810 virtual ~Iterable() { }
812 // returns a copy of ourselves
813 virtual HWComposer::HWCLayer* dup() {
814 return new CONCRETE( static_cast<const CONCRETE&>(*this) );
816 virtual status_t setLayer(size_t index) {
817 mCurrentLayer = &mLayerList[index];
823 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0.
824 * This implements the HWCLayer side of HWCIterableLayer.
826 class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> {
827 struct hwc_composer_device_1* mHwc;
829 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer)
830 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { }
832 virtual int32_t getCompositionType() const {
833 return getLayer()->compositionType;
835 virtual uint32_t getHints() const {
836 return getLayer()->hints;
838 virtual sp<Fence> getAndResetReleaseFence() {
839 int fd = getLayer()->releaseFenceFd;
840 getLayer()->releaseFenceFd = -1;
841 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
843 virtual void setAcquireFenceFd(int fenceFd) {
844 getLayer()->acquireFenceFd = fenceFd;
846 virtual void setPerFrameDefaultState() {
847 //getLayer()->compositionType = HWC_FRAMEBUFFER;
849 virtual void setPlaneAlpha(uint8_t alpha) {
850 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) {
851 getLayer()->planeAlpha = alpha;
854 getLayer()->flags |= HWC_SKIP_LAYER;
858 virtual void setDefaultState() {
859 hwc_layer_1_t* const l = getLayer();
860 l->compositionType = HWC_FRAMEBUFFER;
862 l->flags = HWC_SKIP_LAYER;
865 l->blending = HWC_BLENDING_NONE;
866 l->visibleRegionScreen.numRects = 0;
867 l->visibleRegionScreen.rects = NULL;
868 l->acquireFenceFd = -1;
869 l->releaseFenceFd = -1;
870 l->planeAlpha = 0xFF;
872 virtual void setSkip(bool skip) {
874 getLayer()->flags |= HWC_SKIP_LAYER;
876 getLayer()->flags &= ~HWC_SKIP_LAYER;
879 virtual void setBlending(uint32_t blending) {
880 getLayer()->blending = blending;
882 virtual void setTransform(uint32_t transform) {
883 getLayer()->transform = transform;
885 virtual void setFrame(const Rect& frame) {
886 reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame;
888 virtual void setCrop(const Rect& crop) {
889 reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop;
891 virtual void setVisibleRegionScreen(const Region& reg) {
892 // Region::getSharedBuffer creates a reference to the underlying
893 // SharedBuffer of this Region, this reference is freed
895 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen;
896 SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects);
897 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data());
899 virtual void setBuffer(const sp<GraphicBuffer>& buffer) {
900 if (buffer == 0 || buffer->handle == 0) {
901 getLayer()->compositionType = HWC_FRAMEBUFFER;
902 getLayer()->flags |= HWC_SKIP_LAYER;
903 getLayer()->handle = 0;
905 getLayer()->handle = buffer->handle;
908 virtual void onDisplayed() {
909 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen;
910 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects);
913 // not technically needed but safer
914 visibleRegion.numRects = 0;
915 visibleRegion.rects = NULL;
918 getLayer()->acquireFenceFd = -1;
923 * returns an iterator initialized at a given index in the layer list
925 HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) {
926 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
927 return LayerListIterator();
929 const DisplayData& disp(mDisplayData[id]);
930 if (!mHwc || !disp.list || index > disp.list->numHwLayers) {
931 return LayerListIterator();
933 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers), index);
937 * returns an iterator on the beginning of the layer list
939 HWComposer::LayerListIterator HWComposer::begin(int32_t id) {
940 return getLayerIterator(id, 0);
944 * returns an iterator on the end of the layer list
946 HWComposer::LayerListIterator HWComposer::end(int32_t id) {
947 size_t numLayers = 0;
948 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) {
949 const DisplayData& disp(mDisplayData[id]);
950 if (mHwc && disp.list) {
951 numLayers = disp.list->numHwLayers;
952 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
953 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET,
954 // which we ignore when iterating through the layer list.
955 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id);
962 return getLayerIterator(id, numLayers);
965 void HWComposer::dump(String8& result, char* buffer, size_t SIZE) const {
967 result.appendFormat("Hardware Composer state (version %8x):\n", hwcApiVersion(mHwc));
968 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync);
969 for (size_t i=0 ; i<mNumDisplays ; i++) {
970 const DisplayData& disp(mDisplayData[i]);
974 const Vector< sp<Layer> >& visibleLayersSortedByZ =
975 mFlinger->getLayerSortedByZForHwcDisplay(i);
978 " Display[%d] : %ux%u, xdpi=%f, ydpi=%f, refresh=%lld\n",
979 i, disp.width, disp.height, disp.xdpi, disp.ydpi, disp.refresh);
983 " numHwLayers=%u, flags=%08x\n",
984 disp.list->numHwLayers, disp.list->flags);
987 " type | handle | hints | flags | tr | blend | format | source crop | frame name \n"
988 "------------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n");
989 // " __________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____]
990 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
991 const hwc_layer_1_t&l = disp.list->hwLayers[i];
993 String8 name("unknown");
995 if (i < visibleLayersSortedByZ.size()) {
996 const sp<Layer>& layer(visibleLayersSortedByZ[i]);
997 const sp<GraphicBuffer>& buffer(
998 layer->getActiveBuffer());
999 if (buffer != NULL) {
1000 format = buffer->getPixelFormat();
1002 name = layer->getName();
1005 int type = l.compositionType;
1006 if (type == HWC_FRAMEBUFFER_TARGET) {
1007 name = "HWC_FRAMEBUFFER_TARGET";
1008 format = disp.format;
1011 static char const* compositionTypeName[] = {
1017 if (type >= NELEM(compositionTypeName))
1018 type = NELEM(compositionTypeName) - 1;
1020 result.appendFormat(
1021 " %10s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n",
1022 compositionTypeName[type],
1023 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format,
1024 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom,
1025 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom,
1032 if (mHwc && mHwc->dump) {
1033 mHwc->dump(mHwc, buffer, SIZE);
1034 result.append(buffer);
1038 // ---------------------------------------------------------------------------
1040 HWComposer::VSyncThread::VSyncThread(HWComposer& hwc)
1041 : mHwc(hwc), mEnabled(false),
1043 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY))
1047 void HWComposer::VSyncThread::setEnabled(bool enabled) {
1048 Mutex::Autolock _l(mLock);
1049 if (mEnabled != enabled) {
1051 mCondition.signal();
1055 void HWComposer::VSyncThread::onFirstRef() {
1056 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE);
1059 bool HWComposer::VSyncThread::threadLoop() {
1061 Mutex::Autolock _l(mLock);
1063 mCondition.wait(mLock);
1067 const nsecs_t period = mRefreshPeriod;
1068 const nsecs_t now = systemTime(CLOCK_MONOTONIC);
1069 nsecs_t next_vsync = mNextFakeVSync;
1070 nsecs_t sleep = next_vsync - now;
1072 // we missed, find where the next vsync should be
1073 sleep = (period - ((now - next_vsync) % period));
1074 next_vsync = now + sleep;
1076 mNextFakeVSync = next_vsync + period;
1078 struct timespec spec;
1079 spec.tv_sec = next_vsync / 1000000000;
1080 spec.tv_nsec = next_vsync % 1000000000;
1084 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
1085 } while (err<0 && errno == EINTR);
1088 mHwc.mEventHandler.onVSyncReceived(0, next_vsync);
1094 HWComposer::DisplayData::DisplayData()
1095 : width(0), height(0), format(0),
1096 xdpi(0.0f), ydpi(0.0f),
1099 hasFbComp(false), hasOvComp(false),
1100 capacity(0), list(NULL),
1101 framebufferTarget(NULL), fbTargetHandle(0),
1102 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE),
1103 outbufHandle(NULL), outbufAcquireFence(Fence::NO_FENCE),
1107 HWComposer::DisplayData::~DisplayData() {
1111 // ---------------------------------------------------------------------------
1112 }; // namespace android