| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| |
| // Uncomment this to remove support for HWC_DEVICE_API_VERSION_0_3 and older |
| #define HWC_REMOVE_DEPRECATED_VERSIONS 1 |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| |
| #include <utils/Errors.h> |
| #include <utils/String8.h> |
| #include <utils/Thread.h> |
| #include <utils/Trace.h> |
| #include <utils/Vector.h> |
| |
| #include <ui/GraphicBuffer.h> |
| |
| #include <hardware/hardware.h> |
| #include <hardware/hwcomposer.h> |
| |
| #include <cutils/log.h> |
| #include <cutils/properties.h> |
| |
| #include "Layer.h" // needed only for debugging |
| #include "LayerBase.h" |
| #include "HWComposer.h" |
| #include "SurfaceFlinger.h" |
| |
| namespace android { |
| |
| #define MIN_HWC_HEADER_VERSION 0 |
| |
| static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) { |
| uint32_t hwcVersion = hwc->common.version; |
| if (MIN_HWC_HEADER_VERSION == 0 && |
| (hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK) == 0) { |
| // legacy version encoding |
| hwcVersion <<= 16; |
| } |
| return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK; |
| } |
| |
| static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) { |
| uint32_t hwcVersion = hwc->common.version; |
| if (MIN_HWC_HEADER_VERSION == 0 && |
| (hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK) == 0) { |
| // legacy version encoding |
| hwcVersion <<= 16; |
| } |
| return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK; |
| } |
| |
| static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc, |
| uint32_t version) { |
| return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK); |
| } |
| |
| // --------------------------------------------------------------------------- |
| |
| struct HWComposer::cb_context { |
| struct callbacks : public hwc_procs_t { |
| // these are here to facilitate the transition when adding |
| // new callbacks (an implementation can check for NULL before |
| // calling a new callback). |
| void (*zero[4])(void); |
| }; |
| callbacks procs; |
| HWComposer* hwc; |
| }; |
| |
| // --------------------------------------------------------------------------- |
| |
| HWComposer::HWComposer( |
| const sp<SurfaceFlinger>& flinger, |
| EventHandler& handler) |
| : mFlinger(flinger), |
| mFbDev(0), mHwc(0), mNumDisplays(1), |
| mCBContext(new cb_context), |
| mEventHandler(handler), |
| mVSyncCount(0), mDebugForceFakeVSync(false) |
| { |
| for (size_t i =0 ; i<MAX_DISPLAYS ; i++) { |
| mLists[i] = 0; |
| } |
| |
| char value[PROPERTY_VALUE_MAX]; |
| property_get("debug.sf.no_hw_vsync", value, "0"); |
| mDebugForceFakeVSync = atoi(value); |
| |
| bool needVSyncThread = true; |
| |
| // Note: some devices may insist that the FB HAL be opened before HWC. |
| loadFbHalModule(); |
| loadHwcModule(); |
| |
| // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory. |
| if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) |
| && !mFbDev) { |
| ALOGE("ERROR: failed to open framebuffer, aborting"); |
| abort(); |
| } |
| |
| if (mHwc) { |
| ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER, |
| (hwcApiVersion(mHwc) >> 24) & 0xff, |
| (hwcApiVersion(mHwc) >> 16) & 0xff); |
| if (mHwc->registerProcs) { |
| mCBContext->hwc = this; |
| mCBContext->procs.invalidate = &hook_invalidate; |
| mCBContext->procs.vsync = &hook_vsync; |
| if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) |
| mCBContext->procs.hotplug = &hook_hotplug; |
| else |
| mCBContext->procs.hotplug = NULL; |
| memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero)); |
| mHwc->registerProcs(mHwc, &mCBContext->procs); |
| } |
| |
| // don't need a vsync thread if we have a hardware composer |
| needVSyncThread = false; |
| // always turn vsync off when we start |
| mHwc->eventControl(mHwc, HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); |
| |
| // these IDs are always reserved |
| for (size_t i=0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) { |
| mAllocatedDisplayIDs.markBit(i); |
| } |
| |
| // the number of displays we actually have depends on the |
| // hw composer version |
| if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { |
| // 1.2 adds support for virtual displays |
| mNumDisplays = MAX_DISPLAYS; |
| } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { |
| // 1.1 adds support for multiple displays |
| mNumDisplays = HWC_NUM_DISPLAY_TYPES; |
| } else { |
| mNumDisplays = 1; |
| } |
| } |
| |
| if (mFbDev) { |
| ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)), |
| "should only have fbdev if no hwc or hwc is 1.0"); |
| |
| DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]); |
| disp.xres = mFbDev->width; |
| disp.yres = mFbDev->height; |
| disp.format = mFbDev->format; |
| disp.xdpi = mFbDev->xdpi; |
| disp.ydpi = mFbDev->ydpi; |
| if (disp.refresh == 0) { |
| disp.refresh = nsecs_t(1e9 / mFbDev->fps); |
| ALOGW("getting VSYNC period from fb HAL: %lld", disp.refresh); |
| } |
| if (disp.refresh == 0) { |
| disp.refresh = nsecs_t(1e9 / 60.0); |
| ALOGW("getting VSYNC period from thin air: %lld", |
| mDisplayData[HWC_DISPLAY_PRIMARY].refresh); |
| } |
| } else if (mHwc) { |
| queryDisplayProperties(HWC_DISPLAY_PRIMARY); |
| } |
| |
| if (needVSyncThread) { |
| // we don't have VSYNC support, we need to fake it |
| mVSyncThread = new VSyncThread(*this); |
| } |
| } |
| |
| HWComposer::~HWComposer() { |
| if (mHwc) { |
| mHwc->eventControl(mHwc, 0, EVENT_VSYNC, 0); |
| } |
| if (mVSyncThread != NULL) { |
| mVSyncThread->requestExitAndWait(); |
| } |
| if (mHwc) { |
| hwc_close_1(mHwc); |
| } |
| if (mFbDev) { |
| framebuffer_close(mFbDev); |
| } |
| delete mCBContext; |
| } |
| |
| // Load and prepare the hardware composer module. Sets mHwc. |
| void HWComposer::loadHwcModule() |
| { |
| hw_module_t const* module; |
| |
| if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) { |
| ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID); |
| return; |
| } |
| |
| int err = hwc_open_1(module, &mHwc); |
| if (err) { |
| ALOGE("%s device failed to initialize (%s)", |
| HWC_HARDWARE_COMPOSER, strerror(-err)); |
| return; |
| } |
| |
| if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) || |
| hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION || |
| hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) { |
| ALOGE("%s device version %#x unsupported, will not be used", |
| HWC_HARDWARE_COMPOSER, mHwc->common.version); |
| hwc_close_1(mHwc); |
| mHwc = NULL; |
| return; |
| } |
| } |
| |
| // Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev. |
| void HWComposer::loadFbHalModule() |
| { |
| hw_module_t const* module; |
| |
| if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) != 0) { |
| ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID); |
| return; |
| } |
| |
| int err = framebuffer_open(module, &mFbDev); |
| if (err) { |
| ALOGE("framebuffer_open failed (%s)", strerror(-err)); |
| return; |
| } |
| } |
| |
| status_t HWComposer::initCheck() const { |
| return mHwc ? NO_ERROR : NO_INIT; |
| } |
| |
| void HWComposer::hook_invalidate(const struct hwc_procs* procs) { |
| cb_context* ctx = reinterpret_cast<cb_context*>( |
| const_cast<hwc_procs_t*>(procs)); |
| ctx->hwc->invalidate(); |
| } |
| |
| void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp, |
| int64_t timestamp) { |
| cb_context* ctx = reinterpret_cast<cb_context*>( |
| const_cast<hwc_procs_t*>(procs)); |
| ctx->hwc->vsync(disp, timestamp); |
| } |
| |
| void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp, |
| int connected) { |
| cb_context* ctx = reinterpret_cast<cb_context*>( |
| const_cast<hwc_procs_t*>(procs)); |
| ctx->hwc->hotplug(disp, connected); |
| } |
| |
| void HWComposer::invalidate() { |
| mFlinger->repaintEverything(); |
| } |
| |
| void HWComposer::vsync(int disp, int64_t timestamp) { |
| ATRACE_INT("VSYNC", ++mVSyncCount&1); |
| mEventHandler.onVSyncReceived(disp, timestamp); |
| Mutex::Autolock _l(mLock); |
| mLastHwVSync = timestamp; |
| } |
| |
| void HWComposer::hotplug(int disp, int connected) { |
| if (disp == HWC_DISPLAY_PRIMARY || disp >= HWC_NUM_DISPLAY_TYPES) { |
| ALOGE("hotplug event received for invalid display: disp=%d connected=%d", |
| disp, connected); |
| return; |
| } |
| |
| if (connected) |
| queryDisplayProperties(disp); |
| |
| // TODO: tell someone else about this |
| } |
| |
| static const uint32_t DISPLAY_ATTRIBUTES[] = { |
| HWC_DISPLAY_VSYNC_PERIOD, |
| HWC_DISPLAY_RESOLUTION_X, |
| HWC_DISPLAY_RESOLUTION_Y, |
| HWC_DISPLAY_DPI_X, |
| HWC_DISPLAY_DPI_Y, |
| HWC_DISPLAY_NO_ATTRIBUTE, |
| }; |
| #define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0]) |
| |
| // http://developer.android.com/reference/android/util/DisplayMetrics.html |
| #define ANDROID_DENSITY_TV 213 |
| #define ANDROID_DENSITY_XHIGH 320 |
| |
| void HWComposer::queryDisplayProperties(int disp) { |
| ALOG_ASSERT(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); |
| |
| // use zero as default value for unspecified attributes |
| int32_t values[NUM_DISPLAY_ATTRIBUTES - 1]; |
| memset(values, 0, sizeof(values)); |
| |
| uint32_t config; |
| size_t numConfigs = 1; |
| status_t err = mHwc->getDisplayConfigs(mHwc, disp, &config, &numConfigs); |
| if (err == NO_ERROR) { |
| mHwc->getDisplayAttributes(mHwc, disp, config, DISPLAY_ATTRIBUTES, |
| values); |
| } |
| |
| int32_t w = 0, h = 0; |
| for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { |
| switch (DISPLAY_ATTRIBUTES[i]) { |
| case HWC_DISPLAY_VSYNC_PERIOD: |
| mDisplayData[disp].refresh = nsecs_t(values[i]); |
| break; |
| case HWC_DISPLAY_RESOLUTION_X: |
| mDisplayData[disp].xres = values[i]; |
| break; |
| case HWC_DISPLAY_RESOLUTION_Y: |
| mDisplayData[disp].yres = values[i]; |
| break; |
| case HWC_DISPLAY_DPI_X: |
| mDisplayData[disp].xdpi = values[i] / 1000.0f; |
| break; |
| case HWC_DISPLAY_DPI_Y: |
| mDisplayData[disp].ydpi = values[i] / 1000.0f; |
| break; |
| default: |
| ALOG_ASSERT(false, "unknown display attribute %#x", |
| DISPLAY_ATTRIBUTES[i]); |
| break; |
| } |
| } |
| |
| if (mDisplayData[disp].xdpi == 0.0f || mDisplayData[disp].ydpi == 0.0f) { |
| // is there anything smarter we can do? |
| if (h >= 1080) { |
| mDisplayData[disp].xdpi = ANDROID_DENSITY_XHIGH; |
| mDisplayData[disp].ydpi = ANDROID_DENSITY_XHIGH; |
| } else { |
| mDisplayData[disp].xdpi = ANDROID_DENSITY_TV; |
| mDisplayData[disp].ydpi = ANDROID_DENSITY_TV; |
| } |
| } |
| } |
| |
| int32_t HWComposer::allocateDisplayId() { |
| if (mAllocatedDisplayIDs.count() >= mNumDisplays) { |
| return NO_MEMORY; |
| } |
| int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit(); |
| mAllocatedDisplayIDs.markBit(id); |
| return id; |
| } |
| |
| status_t HWComposer::freeDisplayId(int32_t id) { |
| if (id < HWC_NUM_DISPLAY_TYPES) { |
| // cannot free the reserved IDs |
| return BAD_VALUE; |
| } |
| if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { |
| return BAD_INDEX; |
| } |
| mAllocatedDisplayIDs.clearBit(id); |
| return NO_ERROR; |
| } |
| |
| nsecs_t HWComposer::getRefreshPeriod(int disp) const { |
| return mDisplayData[disp].refresh; |
| } |
| |
| nsecs_t HWComposer::getRefreshTimestamp(int disp) const { |
| // this returns the last refresh timestamp. |
| // if the last one is not available, we estimate it based on |
| // the refresh period and whatever closest timestamp we have. |
| Mutex::Autolock _l(mLock); |
| nsecs_t now = systemTime(CLOCK_MONOTONIC); |
| return now - ((now - mLastHwVSync) % mDisplayData[disp].refresh); |
| } |
| |
| uint32_t HWComposer::getResolutionX(int disp) const { |
| return mDisplayData[disp].xres; |
| } |
| |
| uint32_t HWComposer::getResolutionY(int disp) const { |
| return mDisplayData[disp].yres; |
| } |
| |
| uint32_t HWComposer::getFormat(int disp) const { |
| return mDisplayData[disp].format; |
| } |
| |
| float HWComposer::getDpiX(int disp) const { |
| return mDisplayData[disp].xdpi; |
| } |
| |
| float HWComposer::getDpiY(int disp) const { |
| return mDisplayData[disp].ydpi; |
| } |
| |
| void HWComposer::eventControl(int event, int enabled) { |
| status_t err = NO_ERROR; |
| if (mHwc) { |
| if (!mDebugForceFakeVSync) { |
| err = mHwc->eventControl(mHwc, 0, event, enabled); |
| // error here should not happen -- not sure what we should |
| // do if it does. |
| ALOGE_IF(err, "eventControl(%d, %d) failed %s", |
| event, enabled, strerror(-err)); |
| } |
| } |
| |
| if (err == NO_ERROR && mVSyncThread != NULL) { |
| mVSyncThread->setEnabled(enabled); |
| } |
| } |
| |
| status_t HWComposer::createWorkList(int32_t id, size_t numLayers) { |
| if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { |
| return BAD_INDEX; |
| } |
| |
| if (mHwc) { |
| DisplayData& disp(mDisplayData[id]); |
| if (disp.capacity < numLayers || disp.list == NULL) { |
| const size_t size = sizeof(hwc_display_contents_1_t) |
| + numLayers * sizeof(hwc_layer_1_t); |
| free(disp.list); |
| disp.list = (hwc_display_contents_1_t*)malloc(size); |
| disp.capacity = numLayers; |
| } |
| disp.list->flags = HWC_GEOMETRY_CHANGED; |
| disp.list->numHwLayers = numLayers; |
| disp.list->flipFenceFd = -1; |
| } |
| return NO_ERROR; |
| } |
| |
| status_t HWComposer::prepare() { |
| for (size_t i=0 ; i<mNumDisplays ; i++) { |
| mLists[i] = mDisplayData[i].list; |
| if (mLists[i]) { |
| mLists[i]->dpy = EGL_NO_DISPLAY; |
| mLists[i]->sur = EGL_NO_SURFACE; |
| } |
| } |
| int err = mHwc->prepare(mHwc, mNumDisplays, mLists); |
| if (err == NO_ERROR) { |
| // here we're just making sure that "skip" layers are set |
| // to HWC_FRAMEBUFFER and we're also counting how many layers |
| // we have of each type. |
| for (size_t i=0 ; i<mNumDisplays ; i++) { |
| DisplayData& disp(mDisplayData[i]); |
| disp.hasFbComp = false; |
| disp.hasOvComp = false; |
| if (disp.list) { |
| for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { |
| hwc_layer_1_t& l = disp.list->hwLayers[i]; |
| if (l.flags & HWC_SKIP_LAYER) { |
| l.compositionType = HWC_FRAMEBUFFER; |
| } |
| if (l.compositionType == HWC_FRAMEBUFFER) { |
| disp.hasFbComp = true; |
| } |
| if (l.compositionType == HWC_OVERLAY) { |
| disp.hasOvComp = true; |
| } |
| } |
| } |
| } |
| } |
| return (status_t)err; |
| } |
| |
| bool HWComposer::hasHwcComposition(int32_t id) const { |
| if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) |
| return false; |
| return mDisplayData[id].hasOvComp; |
| } |
| |
| bool HWComposer::hasGlesComposition(int32_t id) const { |
| if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) |
| return false; |
| return mDisplayData[id].hasFbComp; |
| } |
| |
| status_t HWComposer::commit() { |
| int err = NO_ERROR; |
| if (mHwc) { |
| if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { |
| // On version 1.0, the OpenGL ES target surface is communicated |
| // by the (dpy, sur) fields and we are guaranteed to have only |
| // a single display. |
| mLists[0]->dpy = eglGetCurrentDisplay(); |
| mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW); |
| } |
| |
| err = mHwc->set(mHwc, mNumDisplays, mLists); |
| |
| for (size_t i=0 ; i<mNumDisplays ; i++) { |
| DisplayData& disp(mDisplayData[i]); |
| if (disp.list) { |
| if (disp.list->flipFenceFd != -1) { |
| close(disp.list->flipFenceFd); |
| disp.list->flipFenceFd = -1; |
| } |
| disp.list->flags &= ~HWC_GEOMETRY_CHANGED; |
| } |
| } |
| } |
| return (status_t)err; |
| } |
| |
| status_t HWComposer::release() const { |
| if (mHwc) { |
| mHwc->eventControl(mHwc, 0, HWC_EVENT_VSYNC, 0); |
| return (status_t)mHwc->blank(mHwc, 0, 1); |
| } |
| return NO_ERROR; |
| } |
| |
| status_t HWComposer::acquire() const { |
| if (mHwc) { |
| return (status_t)mHwc->blank(mHwc, 0, 0); |
| } |
| return NO_ERROR; |
| } |
| |
| size_t HWComposer::getNumLayers(int32_t id) const { |
| if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { |
| return 0; |
| } |
| return (mHwc && mDisplayData[id].list) ? |
| mDisplayData[id].list->numHwLayers : 0; |
| } |
| |
| int HWComposer::fbPost(buffer_handle_t buffer) |
| { |
| return mFbDev->post(mFbDev, buffer); |
| } |
| |
| int HWComposer::fbCompositionComplete() |
| { |
| if (mFbDev->compositionComplete) { |
| return mFbDev->compositionComplete(mFbDev); |
| } else { |
| return INVALID_OPERATION; |
| } |
| } |
| |
| void HWComposer::fbDump(String8& result) { |
| if (mFbDev->common.version >= 1 && mFbDev->dump) { |
| const size_t SIZE = 4096; |
| char buffer[SIZE]; |
| mFbDev->dump(mFbDev, buffer, SIZE); |
| result.append(buffer); |
| } |
| } |
| |
| |
| /* |
| * Helper template to implement a concrete HWCLayer |
| * This holds the pointer to the concrete hwc layer type |
| * and implements the "iterable" side of HWCLayer. |
| */ |
| template<typename CONCRETE, typename HWCTYPE> |
| class Iterable : public HWComposer::HWCLayer { |
| protected: |
| HWCTYPE* const mLayerList; |
| HWCTYPE* mCurrentLayer; |
| Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { } |
| inline HWCTYPE const * getLayer() const { return mCurrentLayer; } |
| inline HWCTYPE* getLayer() { return mCurrentLayer; } |
| virtual ~Iterable() { } |
| private: |
| // returns a copy of ourselves |
| virtual HWComposer::HWCLayer* dup() { |
| return new CONCRETE( static_cast<const CONCRETE&>(*this) ); |
| } |
| virtual status_t setLayer(size_t index) { |
| mCurrentLayer = &mLayerList[index]; |
| return NO_ERROR; |
| } |
| }; |
| |
| /* |
| * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0. |
| * This implements the HWCLayer side of HWCIterableLayer. |
| */ |
| class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> { |
| public: |
| HWCLayerVersion1(hwc_layer_1_t* layer) |
| : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer) { } |
| |
| virtual int32_t getCompositionType() const { |
| return getLayer()->compositionType; |
| } |
| virtual uint32_t getHints() const { |
| return getLayer()->hints; |
| } |
| virtual int getAndResetReleaseFenceFd() { |
| int fd = getLayer()->releaseFenceFd; |
| getLayer()->releaseFenceFd = -1; |
| return fd; |
| } |
| virtual void setAcquireFenceFd(int fenceFd) { |
| getLayer()->acquireFenceFd = fenceFd; |
| } |
| |
| virtual void setDefaultState() { |
| getLayer()->compositionType = HWC_FRAMEBUFFER; |
| getLayer()->hints = 0; |
| getLayer()->flags = HWC_SKIP_LAYER; |
| getLayer()->handle = 0; |
| getLayer()->transform = 0; |
| getLayer()->blending = HWC_BLENDING_NONE; |
| getLayer()->visibleRegionScreen.numRects = 0; |
| getLayer()->visibleRegionScreen.rects = NULL; |
| getLayer()->acquireFenceFd = -1; |
| getLayer()->releaseFenceFd = -1; |
| } |
| virtual void setSkip(bool skip) { |
| if (skip) { |
| getLayer()->flags |= HWC_SKIP_LAYER; |
| } else { |
| getLayer()->flags &= ~HWC_SKIP_LAYER; |
| } |
| } |
| virtual void setBlending(uint32_t blending) { |
| getLayer()->blending = blending; |
| } |
| virtual void setTransform(uint32_t transform) { |
| getLayer()->transform = transform; |
| } |
| virtual void setFrame(const Rect& frame) { |
| reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame; |
| } |
| virtual void setCrop(const Rect& crop) { |
| reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop; |
| } |
| virtual void setVisibleRegionScreen(const Region& reg) { |
| // Region::getSharedBuffer creates a reference to the underlying |
| // SharedBuffer of this Region, this reference is freed |
| // in onDisplayed() |
| hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; |
| SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects); |
| visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data()); |
| } |
| virtual void setBuffer(const sp<GraphicBuffer>& buffer) { |
| if (buffer == 0 || buffer->handle == 0) { |
| getLayer()->compositionType = HWC_FRAMEBUFFER; |
| getLayer()->flags |= HWC_SKIP_LAYER; |
| getLayer()->handle = 0; |
| } else { |
| getLayer()->handle = buffer->handle; |
| } |
| } |
| virtual void onDisplayed() { |
| hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen; |
| SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects); |
| if (sb) { |
| sb->release(); |
| // not technically needed but safer |
| visibleRegion.numRects = 0; |
| visibleRegion.rects = NULL; |
| } |
| |
| getLayer()->acquireFenceFd = -1; |
| } |
| }; |
| |
| /* |
| * returns an iterator initialized at a given index in the layer list |
| */ |
| HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) { |
| if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { |
| return LayerListIterator(); |
| } |
| const DisplayData& disp(mDisplayData[id]); |
| if (!mHwc || !disp.list || index > disp.list->numHwLayers) { |
| return LayerListIterator(); |
| } |
| return LayerListIterator(new HWCLayerVersion1(disp.list->hwLayers), index); |
| } |
| |
| /* |
| * returns an iterator on the beginning of the layer list |
| */ |
| HWComposer::LayerListIterator HWComposer::begin(int32_t id) { |
| return getLayerIterator(id, 0); |
| } |
| |
| /* |
| * returns an iterator on the end of the layer list |
| */ |
| HWComposer::LayerListIterator HWComposer::end(int32_t id) { |
| return getLayerIterator(id, getNumLayers(id)); |
| } |
| |
| void HWComposer::dump(String8& result, char* buffer, size_t SIZE, |
| const Vector< sp<LayerBase> >& visibleLayersSortedByZ) const { |
| if (mHwc) { |
| result.append("Hardware Composer state:\n"); |
| result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync); |
| for (size_t i=0 ; i<mNumDisplays ; i++) { |
| const DisplayData& disp(mDisplayData[i]); |
| if (disp.list) { |
| result.appendFormat(" id=%d, numHwLayers=%u, flags=%08x\n", |
| i, disp.list->numHwLayers, disp.list->flags); |
| result.append( |
| " type | handle | hints | flags | tr | blend | format | source crop | frame name \n" |
| "----------+----------+----------+----------+----+-------+----------+---------------------------+--------------------------------\n"); |
| // " ________ | ________ | ________ | ________ | __ | _____ | ________ | [_____,_____,_____,_____] | [_____,_____,_____,_____] |
| for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { |
| const hwc_layer_1_t&l = disp.list->hwLayers[i]; |
| const sp<LayerBase> layer(visibleLayersSortedByZ[i]); |
| int32_t format = -1; |
| if (layer->getLayer() != NULL) { |
| const sp<GraphicBuffer>& buffer( |
| layer->getLayer()->getActiveBuffer()); |
| if (buffer != NULL) { |
| format = buffer->getPixelFormat(); |
| } |
| } |
| result.appendFormat( |
| " %8s | %08x | %08x | %08x | %02x | %05x | %08x | [%5d,%5d,%5d,%5d] | [%5d,%5d,%5d,%5d] %s\n", |
| l.compositionType ? "OVERLAY" : "FB", |
| intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, format, |
| l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, |
| l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, |
| layer->getName().string()); |
| } |
| } |
| } |
| } |
| |
| if (mHwc && mHwc->dump) { |
| mHwc->dump(mHwc, buffer, SIZE); |
| result.append(buffer); |
| } |
| } |
| |
| // --------------------------------------------------------------------------- |
| |
| HWComposer::VSyncThread::VSyncThread(HWComposer& hwc) |
| : mHwc(hwc), mEnabled(false), |
| mNextFakeVSync(0), |
| mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY)) |
| { |
| } |
| |
| void HWComposer::VSyncThread::setEnabled(bool enabled) { |
| Mutex::Autolock _l(mLock); |
| mEnabled = enabled; |
| mCondition.signal(); |
| } |
| |
| void HWComposer::VSyncThread::onFirstRef() { |
| run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE); |
| } |
| |
| bool HWComposer::VSyncThread::threadLoop() { |
| { // scope for lock |
| Mutex::Autolock _l(mLock); |
| while (!mEnabled) { |
| mCondition.wait(mLock); |
| } |
| } |
| |
| const nsecs_t period = mRefreshPeriod; |
| const nsecs_t now = systemTime(CLOCK_MONOTONIC); |
| nsecs_t next_vsync = mNextFakeVSync; |
| nsecs_t sleep = next_vsync - now; |
| if (sleep < 0) { |
| // we missed, find where the next vsync should be |
| sleep = (period - ((now - next_vsync) % period)); |
| next_vsync = now + sleep; |
| } |
| mNextFakeVSync = next_vsync + period; |
| |
| struct timespec spec; |
| spec.tv_sec = next_vsync / 1000000000; |
| spec.tv_nsec = next_vsync % 1000000000; |
| |
| int err; |
| do { |
| err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL); |
| } while (err<0 && errno == EINTR); |
| |
| if (err == 0) { |
| mHwc.mEventHandler.onVSyncReceived(0, next_vsync); |
| } |
| |
| return true; |
| } |
| |
| // --------------------------------------------------------------------------- |
| }; // namespace android |
