|  | /* | 
|  | * 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 | 
|  |  | 
|  | #include <inttypes.h> | 
|  | #include <math.h> | 
|  | #include <stdint.h> | 
|  | #include <stdio.h> | 
|  | #include <stdlib.h> | 
|  | #include <string.h> | 
|  | #include <sys/types.h> | 
|  |  | 
|  | #include <utils/Errors.h> | 
|  | #include <utils/misc.h> | 
|  | #include <utils/NativeHandle.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 <android/configuration.h> | 
|  |  | 
|  | #include <cutils/log.h> | 
|  | #include <cutils/properties.h> | 
|  |  | 
|  | #include "HWComposer.h" | 
|  |  | 
|  | #include "../Layer.h"           // needed only for debugging | 
|  | #include "../SurfaceFlinger.h" | 
|  |  | 
|  | namespace android { | 
|  |  | 
|  | #define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION | 
|  |  | 
|  | static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) { | 
|  | uint32_t hwcVersion = hwc->common.version; | 
|  | 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; | 
|  | 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), | 
|  | mDebugForceFakeVSync(false) | 
|  | { | 
|  | for (size_t i =0 ; i<MAX_HWC_DISPLAYS ; i++) { | 
|  | mLists[i] = 0; | 
|  | } | 
|  |  | 
|  | for (size_t i=0 ; i<HWC_NUM_PHYSICAL_DISPLAY_TYPES ; i++) { | 
|  | mLastHwVSync[i] = 0; | 
|  | mVSyncCounts[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. | 
|  | int fberr = loadFbHalModule(); | 
|  | loadHwcModule(); | 
|  |  | 
|  | if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | // close FB HAL if we don't needed it. | 
|  | // FIXME: this is temporary until we're not forced to open FB HAL | 
|  | // before HWC. | 
|  | framebuffer_close(mFbDev); | 
|  | mFbDev = NULL; | 
|  | } | 
|  |  | 
|  | // 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 (%s), aborting", | 
|  | strerror(-fberr)); | 
|  | abort(); | 
|  | } | 
|  |  | 
|  | // these display IDs are always reserved | 
|  | for (size_t i=0 ; i<NUM_BUILTIN_DISPLAYS ; i++) { | 
|  | mAllocatedDisplayIDs.markBit(i); | 
|  | } | 
|  |  | 
|  | 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 | 
|  | eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0); | 
|  |  | 
|  | // the number of displays we actually have depends on the | 
|  | // hw composer version | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { | 
|  | // 1.3 adds support for virtual displays | 
|  | mNumDisplays = MAX_HWC_DISPLAYS; | 
|  | } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | // 1.1 adds support for multiple displays | 
|  | mNumDisplays = NUM_BUILTIN_DISPLAYS; | 
|  | } 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.connected = true; | 
|  | disp.format = mFbDev->format; | 
|  | DisplayConfig config = DisplayConfig(); | 
|  | config.width = mFbDev->width; | 
|  | config.height = mFbDev->height; | 
|  | config.xdpi = mFbDev->xdpi; | 
|  | config.ydpi = mFbDev->ydpi; | 
|  | config.refresh = nsecs_t(1e9 / mFbDev->fps); | 
|  | disp.configs.push_back(config); | 
|  | disp.currentConfig = 0; | 
|  | } else if (mHwc) { | 
|  | // here we're guaranteed to have at least HWC 1.1 | 
|  | for (size_t i =0 ; i<NUM_BUILTIN_DISPLAYS ; i++) { | 
|  | queryDisplayProperties(i); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (needVSyncThread) { | 
|  | // we don't have VSYNC support, we need to fake it | 
|  | mVSyncThread = new VSyncThread(*this); | 
|  | } | 
|  | } | 
|  |  | 
|  | HWComposer::~HWComposer() { | 
|  | if (mHwc) { | 
|  | eventControl(HWC_DISPLAY_PRIMARY, HWC_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. | 
|  | int HWComposer::loadFbHalModule() | 
|  | { | 
|  | hw_module_t const* module; | 
|  |  | 
|  | int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module); | 
|  | if (err != 0) { | 
|  | ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID); | 
|  | return err; | 
|  | } | 
|  |  | 
|  | return framebuffer_open(module, &mFbDev); | 
|  | } | 
|  |  | 
|  | 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) { | 
|  | if (uint32_t(disp) < HWC_NUM_PHYSICAL_DISPLAY_TYPES) { | 
|  | { | 
|  | Mutex::Autolock _l(mLock); | 
|  |  | 
|  | // There have been reports of HWCs that signal several vsync events | 
|  | // with the same timestamp when turning the display off and on. This | 
|  | // is a bug in the HWC implementation, but filter the extra events | 
|  | // out here so they don't cause havoc downstream. | 
|  | if (timestamp == mLastHwVSync[disp]) { | 
|  | ALOGW("Ignoring duplicate VSYNC event from HWC (t=%" PRId64 ")", | 
|  | timestamp); | 
|  | return; | 
|  | } | 
|  |  | 
|  | mLastHwVSync[disp] = timestamp; | 
|  | } | 
|  |  | 
|  | char tag[16]; | 
|  | snprintf(tag, sizeof(tag), "HW_VSYNC_%1u", disp); | 
|  | ATRACE_INT(tag, ++mVSyncCounts[disp] & 1); | 
|  |  | 
|  | mEventHandler.onVSyncReceived(disp, timestamp); | 
|  | } | 
|  | } | 
|  |  | 
|  | void HWComposer::hotplug(int disp, int connected) { | 
|  | if (disp == HWC_DISPLAY_PRIMARY || disp >= VIRTUAL_DISPLAY_ID_BASE) { | 
|  | ALOGE("hotplug event received for invalid display: disp=%d connected=%d", | 
|  | disp, connected); | 
|  | return; | 
|  | } | 
|  | queryDisplayProperties(disp); | 
|  | mEventHandler.onHotplugReceived(disp, bool(connected)); | 
|  | } | 
|  |  | 
|  | static float getDefaultDensity(uint32_t width, uint32_t height) { | 
|  | // Default density is based on TVs: 1080p displays get XHIGH density, | 
|  | // lower-resolution displays get TV density. Maybe eventually we'll need | 
|  | // to update it for 4K displays, though hopefully those just report | 
|  | // accurate DPI information to begin with. This is also used for virtual | 
|  | // displays and even primary displays with older hwcomposers, so be | 
|  | // careful about orientation. | 
|  |  | 
|  | uint32_t h = width < height ? width : height; | 
|  | if (h >= 1080) return ACONFIGURATION_DENSITY_XHIGH; | 
|  | else           return ACONFIGURATION_DENSITY_TV; | 
|  | } | 
|  |  | 
|  | static const uint32_t DISPLAY_ATTRIBUTES[] = { | 
|  | HWC_DISPLAY_VSYNC_PERIOD, | 
|  | HWC_DISPLAY_WIDTH, | 
|  | HWC_DISPLAY_HEIGHT, | 
|  | HWC_DISPLAY_DPI_X, | 
|  | HWC_DISPLAY_DPI_Y, | 
|  | HWC_DISPLAY_NO_ATTRIBUTE, | 
|  | }; | 
|  | #define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0]) | 
|  |  | 
|  | status_t HWComposer::queryDisplayProperties(int disp) { | 
|  |  | 
|  | LOG_ALWAYS_FATAL_IF(!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)); | 
|  |  | 
|  | const size_t MAX_NUM_CONFIGS = 128; | 
|  | uint32_t configs[MAX_NUM_CONFIGS] = {0}; | 
|  | size_t numConfigs = MAX_NUM_CONFIGS; | 
|  | status_t err = mHwc->getDisplayConfigs(mHwc, disp, configs, &numConfigs); | 
|  | if (err != NO_ERROR) { | 
|  | // this can happen if an unpluggable display is not connected | 
|  | mDisplayData[disp].connected = false; | 
|  | return err; | 
|  | } | 
|  |  | 
|  | mDisplayData[disp].currentConfig = 0; | 
|  | for (size_t c = 0; c < numConfigs; ++c) { | 
|  | err = mHwc->getDisplayAttributes(mHwc, disp, configs[c], | 
|  | DISPLAY_ATTRIBUTES, values); | 
|  | if (err != NO_ERROR) { | 
|  | // we can't get this display's info. turn it off. | 
|  | mDisplayData[disp].connected = false; | 
|  | return err; | 
|  | } | 
|  |  | 
|  | DisplayConfig config = DisplayConfig(); | 
|  | for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) { | 
|  | switch (DISPLAY_ATTRIBUTES[i]) { | 
|  | case HWC_DISPLAY_VSYNC_PERIOD: | 
|  | config.refresh = nsecs_t(values[i]); | 
|  | break; | 
|  | case HWC_DISPLAY_WIDTH: | 
|  | config.width = values[i]; | 
|  | break; | 
|  | case HWC_DISPLAY_HEIGHT: | 
|  | config.height = values[i]; | 
|  | break; | 
|  | case HWC_DISPLAY_DPI_X: | 
|  | config.xdpi = values[i] / 1000.0f; | 
|  | break; | 
|  | case HWC_DISPLAY_DPI_Y: | 
|  | config.ydpi = values[i] / 1000.0f; | 
|  | break; | 
|  | default: | 
|  | ALOG_ASSERT(false, "unknown display attribute[%zu] %#x", | 
|  | i, DISPLAY_ATTRIBUTES[i]); | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (config.xdpi == 0.0f || config.ydpi == 0.0f) { | 
|  | float dpi = getDefaultDensity(config.width, config.height); | 
|  | config.xdpi = dpi; | 
|  | config.ydpi = dpi; | 
|  | } | 
|  |  | 
|  | mDisplayData[disp].configs.push_back(config); | 
|  | } | 
|  |  | 
|  | // FIXME: what should we set the format to? | 
|  | mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888; | 
|  | mDisplayData[disp].connected = true; | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | status_t HWComposer::setVirtualDisplayProperties(int32_t id, | 
|  | uint32_t w, uint32_t h, uint32_t format) { | 
|  | if (id < VIRTUAL_DISPLAY_ID_BASE || id >= int32_t(mNumDisplays) || | 
|  | !mAllocatedDisplayIDs.hasBit(id)) { | 
|  | return BAD_INDEX; | 
|  | } | 
|  | size_t configId = mDisplayData[id].currentConfig; | 
|  | mDisplayData[id].format = format; | 
|  | DisplayConfig& config = mDisplayData[id].configs.editItemAt(configId); | 
|  | config.width = w; | 
|  | config.height = h; | 
|  | config.xdpi = config.ydpi = getDefaultDensity(w, h); | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | int32_t HWComposer::allocateDisplayId() { | 
|  | if (mAllocatedDisplayIDs.count() >= mNumDisplays) { | 
|  | return NO_MEMORY; | 
|  | } | 
|  | int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit(); | 
|  | mAllocatedDisplayIDs.markBit(id); | 
|  | mDisplayData[id].connected = true; | 
|  | mDisplayData[id].configs.resize(1); | 
|  | mDisplayData[id].currentConfig = 0; | 
|  | return id; | 
|  | } | 
|  |  | 
|  | status_t HWComposer::freeDisplayId(int32_t id) { | 
|  | if (id < NUM_BUILTIN_DISPLAYS) { | 
|  | // cannot free the reserved IDs | 
|  | return BAD_VALUE; | 
|  | } | 
|  | if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { | 
|  | return BAD_INDEX; | 
|  | } | 
|  | mAllocatedDisplayIDs.clearBit(id); | 
|  | mDisplayData[id].connected = false; | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | 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); | 
|  | size_t configId = mDisplayData[disp].currentConfig; | 
|  | return now - ((now - mLastHwVSync[disp]) % | 
|  | mDisplayData[disp].configs[configId].refresh); | 
|  | } | 
|  |  | 
|  | sp<Fence> HWComposer::getDisplayFence(int disp) const { | 
|  | return mDisplayData[disp].lastDisplayFence; | 
|  | } | 
|  |  | 
|  | uint32_t HWComposer::getFormat(int disp) const { | 
|  | if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) { | 
|  | return HAL_PIXEL_FORMAT_RGBA_8888; | 
|  | } else { | 
|  | return mDisplayData[disp].format; | 
|  | } | 
|  | } | 
|  |  | 
|  | bool HWComposer::isConnected(int disp) const { | 
|  | return mDisplayData[disp].connected; | 
|  | } | 
|  |  | 
|  | uint32_t HWComposer::getWidth(int disp) const { | 
|  | size_t currentConfig = mDisplayData[disp].currentConfig; | 
|  | return mDisplayData[disp].configs[currentConfig].width; | 
|  | } | 
|  |  | 
|  | uint32_t HWComposer::getHeight(int disp) const { | 
|  | size_t currentConfig = mDisplayData[disp].currentConfig; | 
|  | return mDisplayData[disp].configs[currentConfig].height; | 
|  | } | 
|  |  | 
|  | float HWComposer::getDpiX(int disp) const { | 
|  | size_t currentConfig = mDisplayData[disp].currentConfig; | 
|  | return mDisplayData[disp].configs[currentConfig].xdpi; | 
|  | } | 
|  |  | 
|  | float HWComposer::getDpiY(int disp) const { | 
|  | size_t currentConfig = mDisplayData[disp].currentConfig; | 
|  | return mDisplayData[disp].configs[currentConfig].ydpi; | 
|  | } | 
|  |  | 
|  | nsecs_t HWComposer::getRefreshPeriod(int disp) const { | 
|  | size_t currentConfig = mDisplayData[disp].currentConfig; | 
|  | return mDisplayData[disp].configs[currentConfig].refresh; | 
|  | } | 
|  |  | 
|  | const Vector<HWComposer::DisplayConfig>& HWComposer::getConfigs(int disp) const { | 
|  | return mDisplayData[disp].configs; | 
|  | } | 
|  |  | 
|  | size_t HWComposer::getCurrentConfig(int disp) const { | 
|  | return mDisplayData[disp].currentConfig; | 
|  | } | 
|  |  | 
|  | void HWComposer::eventControl(int disp, int event, int enabled) { | 
|  | if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) { | 
|  | ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)", | 
|  | event, disp, enabled); | 
|  | return; | 
|  | } | 
|  | if (event != EVENT_VSYNC) { | 
|  | ALOGW("eventControl got unexpected event %d (disp=%d en=%d)", | 
|  | event, disp, enabled); | 
|  | return; | 
|  | } | 
|  | status_t err = NO_ERROR; | 
|  | if (mHwc && !mDebugForceFakeVSync) { | 
|  | // NOTE: we use our own internal lock here because we have to call | 
|  | // into the HWC with the lock held, and we want to make sure | 
|  | // that even if HWC blocks (which it shouldn't), it won't | 
|  | // affect other threads. | 
|  | Mutex::Autolock _l(mEventControlLock); | 
|  | const int32_t eventBit = 1UL << event; | 
|  | const int32_t newValue = enabled ? eventBit : 0; | 
|  | const int32_t oldValue = mDisplayData[disp].events & eventBit; | 
|  | if (newValue != oldValue) { | 
|  | ATRACE_CALL(); | 
|  | err = mHwc->eventControl(mHwc, disp, event, enabled); | 
|  | if (!err) { | 
|  | int32_t& events(mDisplayData[disp].events); | 
|  | events = (events & ~eventBit) | newValue; | 
|  |  | 
|  | char tag[16]; | 
|  | snprintf(tag, sizeof(tag), "HW_VSYNC_ON_%1u", disp); | 
|  | ATRACE_INT(tag, 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 (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | // we need space for the HWC_FRAMEBUFFER_TARGET | 
|  | numLayers++; | 
|  | } | 
|  | if (disp.capacity < numLayers || disp.list == NULL) { | 
|  | 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; | 
|  | } | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1]; | 
|  | memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t)); | 
|  | const DisplayConfig& currentConfig = | 
|  | disp.configs[disp.currentConfig]; | 
|  | const hwc_rect_t r = { 0, 0, | 
|  | (int) currentConfig.width, (int) currentConfig.height }; | 
|  | disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; | 
|  | disp.framebufferTarget->hints = 0; | 
|  | disp.framebufferTarget->flags = 0; | 
|  | disp.framebufferTarget->handle = disp.fbTargetHandle; | 
|  | disp.framebufferTarget->transform = 0; | 
|  | disp.framebufferTarget->blending = HWC_BLENDING_PREMULT; | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { | 
|  | disp.framebufferTarget->sourceCropf.left = 0; | 
|  | disp.framebufferTarget->sourceCropf.top = 0; | 
|  | disp.framebufferTarget->sourceCropf.right = | 
|  | currentConfig.width; | 
|  | disp.framebufferTarget->sourceCropf.bottom = | 
|  | currentConfig.height; | 
|  | } else { | 
|  | disp.framebufferTarget->sourceCrop = r; | 
|  | } | 
|  | disp.framebufferTarget->displayFrame = r; | 
|  | disp.framebufferTarget->visibleRegionScreen.numRects = 1; | 
|  | disp.framebufferTarget->visibleRegionScreen.rects = | 
|  | &disp.framebufferTarget->displayFrame; | 
|  | disp.framebufferTarget->acquireFenceFd = -1; | 
|  | disp.framebufferTarget->releaseFenceFd = -1; | 
|  | disp.framebufferTarget->planeAlpha = 0xFF; | 
|  | } | 
|  | disp.list->retireFenceFd = -1; | 
|  | disp.list->flags = HWC_GEOMETRY_CHANGED; | 
|  | disp.list->numHwLayers = numLayers; | 
|  | } | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | status_t HWComposer::setFramebufferTarget(int32_t id, | 
|  | const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) { | 
|  | if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) { | 
|  | return BAD_INDEX; | 
|  | } | 
|  | DisplayData& disp(mDisplayData[id]); | 
|  | if (!disp.framebufferTarget) { | 
|  | // this should never happen, but apparently eglCreateWindowSurface() | 
|  | // triggers a Surface::queueBuffer()  on some | 
|  | // devices (!?) -- log and ignore. | 
|  | ALOGE("HWComposer: framebufferTarget is null"); | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | int acquireFenceFd = -1; | 
|  | if (acquireFence->isValid()) { | 
|  | acquireFenceFd = acquireFence->dup(); | 
|  | } | 
|  |  | 
|  | // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd); | 
|  | disp.fbTargetHandle = buf->handle; | 
|  | disp.framebufferTarget->handle = disp.fbTargetHandle; | 
|  | disp.framebufferTarget->acquireFenceFd = acquireFenceFd; | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | status_t HWComposer::prepare() { | 
|  | for (size_t i=0 ; i<mNumDisplays ; i++) { | 
|  | DisplayData& disp(mDisplayData[i]); | 
|  | if (disp.framebufferTarget) { | 
|  | // make sure to reset the type to HWC_FRAMEBUFFER_TARGET | 
|  | // DO NOT reset the handle field to NULL, because it's possible | 
|  | // that we have nothing to redraw (eg: eglSwapBuffers() not called) | 
|  | // in which case, we should continue to use the same buffer. | 
|  | LOG_FATAL_IF(disp.list == NULL); | 
|  | disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET; | 
|  | } | 
|  | if (!disp.connected && disp.list != NULL) { | 
|  | ALOGW("WARNING: disp %zu: connected, non-null list, layers=%zu", | 
|  | i, disp.list->numHwLayers); | 
|  | } | 
|  | mLists[i] = disp.list; | 
|  | if (mLists[i]) { | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { | 
|  | mLists[i]->outbuf = disp.outbufHandle; | 
|  | mLists[i]->outbufAcquireFenceFd = -1; | 
|  | } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | // garbage data to catch improper use | 
|  | mLists[i]->dpy = (hwc_display_t)0xDEADBEEF; | 
|  | mLists[i]->sur = (hwc_surface_t)0xDEADBEEF; | 
|  | } else { | 
|  | mLists[i]->dpy = EGL_NO_DISPLAY; | 
|  | mLists[i]->sur = EGL_NO_SURFACE; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | int err = mHwc->prepare(mHwc, mNumDisplays, mLists); | 
|  | ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err)); | 
|  |  | 
|  | 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. | 
|  | // | 
|  | // If there are no window layers, we treat the display has having FB | 
|  | // composition, because SurfaceFlinger will use GLES to draw the | 
|  | // wormhole region. | 
|  | 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]; | 
|  |  | 
|  | //ALOGD("prepare: %d, type=%d, handle=%p", | 
|  | //        i, l.compositionType, l.handle); | 
|  |  | 
|  | 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; | 
|  | } | 
|  | if (l.compositionType == HWC_CURSOR_OVERLAY) { | 
|  | disp.hasOvComp = true; | 
|  | } | 
|  | } | 
|  | if (disp.list->numHwLayers == (disp.framebufferTarget ? 1 : 0)) { | 
|  | disp.hasFbComp = true; | 
|  | } | 
|  | } else { | 
|  | disp.hasFbComp = true; | 
|  | } | 
|  | } | 
|  | } | 
|  | return (status_t)err; | 
|  | } | 
|  |  | 
|  | bool HWComposer::hasHwcComposition(int32_t id) const { | 
|  | if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) | 
|  | return false; | 
|  | return mDisplayData[id].hasOvComp; | 
|  | } | 
|  |  | 
|  | bool HWComposer::hasGlesComposition(int32_t id) const { | 
|  | if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) | 
|  | return true; | 
|  | return mDisplayData[id].hasFbComp; | 
|  | } | 
|  |  | 
|  | sp<Fence> HWComposer::getAndResetReleaseFence(int32_t id) { | 
|  | if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) | 
|  | return Fence::NO_FENCE; | 
|  |  | 
|  | int fd = INVALID_OPERATION; | 
|  | if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | const DisplayData& disp(mDisplayData[id]); | 
|  | if (disp.framebufferTarget) { | 
|  | fd = disp.framebufferTarget->releaseFenceFd; | 
|  | disp.framebufferTarget->acquireFenceFd = -1; | 
|  | disp.framebufferTarget->releaseFenceFd = -1; | 
|  | } | 
|  | } | 
|  | return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE; | 
|  | } | 
|  |  | 
|  | 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); | 
|  | } | 
|  |  | 
|  | for (size_t i=VIRTUAL_DISPLAY_ID_BASE; i<mNumDisplays; i++) { | 
|  | DisplayData& disp(mDisplayData[i]); | 
|  | if (disp.outbufHandle) { | 
|  | mLists[i]->outbuf = disp.outbufHandle; | 
|  | mLists[i]->outbufAcquireFenceFd = | 
|  | disp.outbufAcquireFence->dup(); | 
|  | } | 
|  | } | 
|  |  | 
|  | err = mHwc->set(mHwc, mNumDisplays, mLists); | 
|  |  | 
|  | for (size_t i=0 ; i<mNumDisplays ; i++) { | 
|  | DisplayData& disp(mDisplayData[i]); | 
|  | disp.lastDisplayFence = disp.lastRetireFence; | 
|  | disp.lastRetireFence = Fence::NO_FENCE; | 
|  | if (disp.list) { | 
|  | if (disp.list->retireFenceFd != -1) { | 
|  | disp.lastRetireFence = new Fence(disp.list->retireFenceFd); | 
|  | disp.list->retireFenceFd = -1; | 
|  | } | 
|  | disp.list->flags &= ~HWC_GEOMETRY_CHANGED; | 
|  | } | 
|  | } | 
|  | } | 
|  | return (status_t)err; | 
|  | } | 
|  |  | 
|  | status_t HWComposer::setPowerMode(int disp, int mode) { | 
|  | LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE); | 
|  | if (mHwc) { | 
|  | if (mode == HWC_POWER_MODE_OFF) { | 
|  | eventControl(disp, HWC_EVENT_VSYNC, 0); | 
|  | } | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) { | 
|  | return (status_t)mHwc->setPowerMode(mHwc, disp, mode); | 
|  | } else { | 
|  | return (status_t)mHwc->blank(mHwc, disp, | 
|  | mode == HWC_POWER_MODE_OFF ? 1 : 0); | 
|  | } | 
|  | } | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | status_t HWComposer::setActiveConfig(int disp, int mode) { | 
|  | LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE); | 
|  | DisplayData& dd(mDisplayData[disp]); | 
|  | dd.currentConfig = mode; | 
|  | if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) { | 
|  | return (status_t)mHwc->setActiveConfig(mHwc, disp, mode); | 
|  | } else { | 
|  | LOG_FATAL_IF(mode != 0); | 
|  | } | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | void HWComposer::disconnectDisplay(int disp) { | 
|  | LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY); | 
|  | DisplayData& dd(mDisplayData[disp]); | 
|  | free(dd.list); | 
|  | dd.list = NULL; | 
|  | dd.framebufferTarget = NULL;    // points into dd.list | 
|  | dd.fbTargetHandle = NULL; | 
|  | dd.outbufHandle = NULL; | 
|  | dd.lastRetireFence = Fence::NO_FENCE; | 
|  | dd.lastDisplayFence = Fence::NO_FENCE; | 
|  | dd.outbufAcquireFence = Fence::NO_FENCE; | 
|  | // clear all the previous configs and repopulate when a new | 
|  | // device is added | 
|  | dd.configs.clear(); | 
|  | } | 
|  |  | 
|  | int HWComposer::getVisualID() const { | 
|  | if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED | 
|  | // is supported by the implementation. we can only be in this case | 
|  | // if we have HWC 1.1 | 
|  | return HAL_PIXEL_FORMAT_RGBA_8888; | 
|  | //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; | 
|  | } else { | 
|  | return mFbDev->format; | 
|  | } | 
|  | } | 
|  |  | 
|  | bool HWComposer::supportsFramebufferTarget() const { | 
|  | return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)); | 
|  | } | 
|  |  | 
|  | int HWComposer::fbPost(int32_t id, | 
|  | const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { | 
|  | if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | return setFramebufferTarget(id, acquireFence, buffer); | 
|  | } else { | 
|  | acquireFence->waitForever("HWComposer::fbPost"); | 
|  | return mFbDev->post(mFbDev, buffer->handle); | 
|  | } | 
|  | } | 
|  |  | 
|  | int HWComposer::fbCompositionComplete() { | 
|  | if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) | 
|  | return NO_ERROR; | 
|  |  | 
|  | if (mFbDev->compositionComplete) { | 
|  | return mFbDev->compositionComplete(mFbDev); | 
|  | } else { | 
|  | return INVALID_OPERATION; | 
|  | } | 
|  | } | 
|  |  | 
|  | void HWComposer::fbDump(String8& result) { | 
|  | if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) { | 
|  | const size_t SIZE = 4096; | 
|  | char buffer[SIZE]; | 
|  | mFbDev->dump(mFbDev, buffer, SIZE); | 
|  | result.append(buffer); | 
|  | } | 
|  | } | 
|  |  | 
|  | status_t HWComposer::setOutputBuffer(int32_t id, const sp<Fence>& acquireFence, | 
|  | const sp<GraphicBuffer>& buf) { | 
|  | if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) | 
|  | return BAD_INDEX; | 
|  | if (id < VIRTUAL_DISPLAY_ID_BASE) | 
|  | return INVALID_OPERATION; | 
|  |  | 
|  | DisplayData& disp(mDisplayData[id]); | 
|  | disp.outbufHandle = buf->handle; | 
|  | disp.outbufAcquireFence = acquireFence; | 
|  | return NO_ERROR; | 
|  | } | 
|  |  | 
|  | sp<Fence> HWComposer::getLastRetireFence(int32_t id) const { | 
|  | if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) | 
|  | return Fence::NO_FENCE; | 
|  | return mDisplayData[id].lastRetireFence; | 
|  | } | 
|  |  | 
|  | status_t HWComposer::setCursorPositionAsync(int32_t id, const Rect& pos) | 
|  | { | 
|  | if (mHwc->setCursorPositionAsync) { | 
|  | return (status_t)mHwc->setCursorPositionAsync(mHwc, id, pos.left, pos.top); | 
|  | } | 
|  | else { | 
|  | return NO_ERROR; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* | 
|  | * 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> { | 
|  | struct hwc_composer_device_1* mHwc; | 
|  | public: | 
|  | HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer) | 
|  | : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { } | 
|  |  | 
|  | virtual int32_t getCompositionType() const { | 
|  | return getLayer()->compositionType; | 
|  | } | 
|  | virtual uint32_t getHints() const { | 
|  | return getLayer()->hints; | 
|  | } | 
|  | virtual sp<Fence> getAndResetReleaseFence() { | 
|  | int fd = getLayer()->releaseFenceFd; | 
|  | getLayer()->releaseFenceFd = -1; | 
|  | return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE; | 
|  | } | 
|  | virtual void setAcquireFenceFd(int fenceFd) { | 
|  | getLayer()->acquireFenceFd = fenceFd; | 
|  | } | 
|  | virtual void setPerFrameDefaultState() { | 
|  | //getLayer()->compositionType = HWC_FRAMEBUFFER; | 
|  | } | 
|  | virtual void setPlaneAlpha(uint8_t alpha) { | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) { | 
|  | getLayer()->planeAlpha = alpha; | 
|  | } else { | 
|  | if (alpha < 0xFF) { | 
|  | getLayer()->flags |= HWC_SKIP_LAYER; | 
|  | } | 
|  | } | 
|  | } | 
|  | virtual void setDefaultState() { | 
|  | hwc_layer_1_t* const l = getLayer(); | 
|  | l->compositionType = HWC_FRAMEBUFFER; | 
|  | l->hints = 0; | 
|  | l->flags = HWC_SKIP_LAYER; | 
|  | l->handle = 0; | 
|  | l->transform = 0; | 
|  | l->blending = HWC_BLENDING_NONE; | 
|  | l->visibleRegionScreen.numRects = 0; | 
|  | l->visibleRegionScreen.rects = NULL; | 
|  | l->acquireFenceFd = -1; | 
|  | l->releaseFenceFd = -1; | 
|  | l->planeAlpha = 0xFF; | 
|  | } | 
|  | virtual void setSkip(bool skip) { | 
|  | if (skip) { | 
|  | getLayer()->flags |= HWC_SKIP_LAYER; | 
|  | } else { | 
|  | getLayer()->flags &= ~HWC_SKIP_LAYER; | 
|  | } | 
|  | } | 
|  | virtual void setIsCursorLayerHint(bool isCursor) { | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) { | 
|  | if (isCursor) { | 
|  | getLayer()->flags |= HWC_IS_CURSOR_LAYER; | 
|  | } | 
|  | else { | 
|  | getLayer()->flags &= ~HWC_IS_CURSOR_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) { | 
|  | getLayer()->displayFrame = reinterpret_cast<hwc_rect_t const&>(frame); | 
|  | } | 
|  | virtual void setCrop(const FloatRect& crop) { | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { | 
|  | getLayer()->sourceCropf = reinterpret_cast<hwc_frect_t const&>(crop); | 
|  | } else { | 
|  | /* | 
|  | * Since h/w composer didn't support a flot crop rect before version 1.3, | 
|  | * using integer coordinates instead produces a different output from the GL code in | 
|  | * Layer::drawWithOpenGL(). The difference can be large if the buffer crop to | 
|  | * window size ratio is large and a window crop is defined | 
|  | * (i.e.: if we scale the buffer a lot and we also crop it with a window crop). | 
|  | */ | 
|  | hwc_rect_t& r = getLayer()->sourceCrop; | 
|  | r.left  = int(ceilf(crop.left)); | 
|  | r.top   = int(ceilf(crop.top)); | 
|  | r.right = int(floorf(crop.right)); | 
|  | r.bottom= int(floorf(crop.bottom)); | 
|  | } | 
|  | } | 
|  | 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 setSurfaceDamage(const Region& reg) { | 
|  | if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_5)) { | 
|  | return; | 
|  | } | 
|  | hwc_region_t& surfaceDamage = getLayer()->surfaceDamage; | 
|  | // We encode default full-screen damage as INVALID_RECT upstream, but as | 
|  | // 0 rects for HWComposer | 
|  | if (reg.isRect() && reg.getBounds() == Rect::INVALID_RECT) { | 
|  | surfaceDamage.numRects = 0; | 
|  | surfaceDamage.rects = NULL; | 
|  | return; | 
|  | } | 
|  | SharedBuffer const* sb = reg.getSharedBuffer(&surfaceDamage.numRects); | 
|  | surfaceDamage.rects = reinterpret_cast<hwc_rect_t const *>(sb->data()); | 
|  | } | 
|  | virtual void setSidebandStream(const sp<NativeHandle>& stream) { | 
|  | ALOG_ASSERT(stream->handle() != NULL); | 
|  | getLayer()->compositionType = HWC_SIDEBAND; | 
|  | getLayer()->sidebandStream = stream->handle(); | 
|  | } | 
|  | 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 { | 
|  | if (getLayer()->compositionType == HWC_SIDEBAND) { | 
|  | // If this was a sideband layer but the stream was removed, reset | 
|  | // it to FRAMEBUFFER. The HWC can change it to OVERLAY in prepare. | 
|  | getLayer()->compositionType = HWC_FRAMEBUFFER; | 
|  | } | 
|  | 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; | 
|  |  | 
|  | if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_5)) { | 
|  | return; | 
|  | } | 
|  |  | 
|  | hwc_region_t& surfaceDamage = getLayer()->surfaceDamage; | 
|  | sb = SharedBuffer::bufferFromData(surfaceDamage.rects); | 
|  | if (sb) { | 
|  | sb->release(); | 
|  | surfaceDamage.numRects = 0; | 
|  | surfaceDamage.rects = NULL; | 
|  | } | 
|  | } | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * 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(mHwc, 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) { | 
|  | size_t numLayers = 0; | 
|  | if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) { | 
|  | const DisplayData& disp(mDisplayData[id]); | 
|  | if (mHwc && disp.list) { | 
|  | numLayers = disp.list->numHwLayers; | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) { | 
|  | // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET, | 
|  | // which we ignore when iterating through the layer list. | 
|  | ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id); | 
|  | if (numLayers) { | 
|  | numLayers--; | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | return getLayerIterator(id, numLayers); | 
|  | } | 
|  |  | 
|  | // Converts a PixelFormat to a human-readable string.  Max 11 chars. | 
|  | // (Could use a table of prefab String8 objects.) | 
|  | static String8 getFormatStr(PixelFormat format) { | 
|  | switch (format) { | 
|  | case PIXEL_FORMAT_RGBA_8888:    return String8("RGBA_8888"); | 
|  | case PIXEL_FORMAT_RGBX_8888:    return String8("RGBx_8888"); | 
|  | case PIXEL_FORMAT_RGB_888:      return String8("RGB_888"); | 
|  | case PIXEL_FORMAT_RGB_565:      return String8("RGB_565"); | 
|  | case PIXEL_FORMAT_BGRA_8888:    return String8("BGRA_8888"); | 
|  | case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: | 
|  | return String8("ImplDef"); | 
|  | default: | 
|  | String8 result; | 
|  | result.appendFormat("? %08x", format); | 
|  | return result; | 
|  | } | 
|  | } | 
|  |  | 
|  | void HWComposer::dump(String8& result) const { | 
|  | if (mHwc) { | 
|  | result.appendFormat("Hardware Composer state (version %08x):\n", hwcApiVersion(mHwc)); | 
|  | result.appendFormat("  mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync); | 
|  | for (size_t i=0 ; i<mNumDisplays ; i++) { | 
|  | const DisplayData& disp(mDisplayData[i]); | 
|  | if (!disp.connected) | 
|  | continue; | 
|  |  | 
|  | const Vector< sp<Layer> >& visibleLayersSortedByZ = | 
|  | mFlinger->getLayerSortedByZForHwcDisplay(i); | 
|  |  | 
|  |  | 
|  | result.appendFormat("  Display[%zd] configurations (* current):\n", i); | 
|  | for (size_t c = 0; c < disp.configs.size(); ++c) { | 
|  | const DisplayConfig& config(disp.configs[c]); | 
|  | result.appendFormat("    %s%zd: %ux%u, xdpi=%f, ydpi=%f, refresh=%" PRId64 "\n", | 
|  | c == disp.currentConfig ? "* " : "", c, config.width, config.height, | 
|  | config.xdpi, config.ydpi, config.refresh); | 
|  | } | 
|  |  | 
|  | if (disp.list) { | 
|  | result.appendFormat( | 
|  | "  numHwLayers=%zu, flags=%08x\n", | 
|  | disp.list->numHwLayers, disp.list->flags); | 
|  |  | 
|  | result.append( | 
|  | "    type   |  handle  | hint | flag | tr | blnd |   format    |     source crop (l,t,r,b)      |          frame         | name \n" | 
|  | "-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------\n"); | 
|  | //      " _________ | ________ | ____ | ____ | __ | ____ | ___________ |_____._,_____._,_____._,_____._ |_____,_____,_____,_____ | ___... | 
|  | for (size_t i=0 ; i<disp.list->numHwLayers ; i++) { | 
|  | const hwc_layer_1_t&l = disp.list->hwLayers[i]; | 
|  | int32_t format = -1; | 
|  | String8 name("unknown"); | 
|  |  | 
|  | if (i < visibleLayersSortedByZ.size()) { | 
|  | const sp<Layer>& layer(visibleLayersSortedByZ[i]); | 
|  | const sp<GraphicBuffer>& buffer( | 
|  | layer->getActiveBuffer()); | 
|  | if (buffer != NULL) { | 
|  | format = buffer->getPixelFormat(); | 
|  | } | 
|  | name = layer->getName(); | 
|  | } | 
|  |  | 
|  | int type = l.compositionType; | 
|  | if (type == HWC_FRAMEBUFFER_TARGET) { | 
|  | name = "HWC_FRAMEBUFFER_TARGET"; | 
|  | format = disp.format; | 
|  | } | 
|  |  | 
|  | static char const* compositionTypeName[] = { | 
|  | "GLES", | 
|  | "HWC", | 
|  | "BKGND", | 
|  | "FB TARGET", | 
|  | "SIDEBAND", | 
|  | "HWC_CURSOR", | 
|  | "UNKNOWN"}; | 
|  | if (type >= NELEM(compositionTypeName)) | 
|  | type = NELEM(compositionTypeName) - 1; | 
|  |  | 
|  | String8 formatStr = getFormatStr(format); | 
|  | if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) { | 
|  | result.appendFormat( | 
|  | " %9s | %08" PRIxPTR " | %04x | %04x | %02x | %04x | %-11s |%7.1f,%7.1f,%7.1f,%7.1f |%5d,%5d,%5d,%5d | %s\n", | 
|  | compositionTypeName[type], | 
|  | intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, formatStr.string(), | 
|  | l.sourceCropf.left, l.sourceCropf.top, l.sourceCropf.right, l.sourceCropf.bottom, | 
|  | l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, | 
|  | name.string()); | 
|  | } else { | 
|  | result.appendFormat( | 
|  | " %9s | %08" PRIxPTR " | %04x | %04x | %02x | %04x | %-11s |%7d,%7d,%7d,%7d |%5d,%5d,%5d,%5d | %s\n", | 
|  | compositionTypeName[type], | 
|  | intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, formatStr.string(), | 
|  | l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom, | 
|  | l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom, | 
|  | name.string()); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | if (mHwc && mHwc->dump) { | 
|  | const size_t SIZE = 4096; | 
|  | char buffer[SIZE]; | 
|  | 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); | 
|  | if (mEnabled != enabled) { | 
|  | 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; | 
|  | } | 
|  |  | 
|  | HWComposer::DisplayData::DisplayData() | 
|  | :   configs(), | 
|  | currentConfig(0), | 
|  | format(HAL_PIXEL_FORMAT_RGBA_8888), | 
|  | connected(false), | 
|  | hasFbComp(false), hasOvComp(false), | 
|  | capacity(0), list(NULL), | 
|  | framebufferTarget(NULL), fbTargetHandle(0), | 
|  | lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE), | 
|  | outbufHandle(NULL), outbufAcquireFence(Fence::NO_FENCE), | 
|  | events(0) | 
|  | {} | 
|  |  | 
|  | HWComposer::DisplayData::~DisplayData() { | 
|  | free(list); | 
|  | } | 
|  |  | 
|  | // --------------------------------------------------------------------------- | 
|  | }; // namespace android |