SF: Generalize display management
This CL enables SF to manage an arbitrary number of physical displays.
Previously, displays were identified by 32-bit IDs, where 0 is the
internal display, 1 is the external display, [2, INT32_MAX] are HWC
virtual displays, and -1 represents an invalid display or a non-HWC
virtual display.
If the HWC provides display identification data, SF now allocates 64-bit
display IDs for physical and HWC virtual displays. The IDs are expressed
using an option type, where the null value represents an invalid display
or non-HWC virtual display. Without HWC support, SF falls back to legacy
behavior with at most two physical displays.
The dynamic display IDs are translated to the legacy constants at the
SF/DMS boundary, as a stopgap until the framework is generalized.
Bug: 74619554
Test: Connect 3 displays and create virtual displays on HWC 2.2 and 2.3
Test: libsurfaceflinger_unittest
Test: SurfaceFlinger_test
Change-Id: I0a4a57b6ab7de2dbcf719a4eb1a19a133694012e
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index b1daf12..4c472b8 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -58,15 +58,15 @@
ALOGE("%s failed for HWC display %" PRIu64 ": %s", __FUNCTION__, hwcDisplayId, msg)
#define LOG_DISPLAY_ERROR(displayId, msg) \
- ALOGE("%s failed for display %d: %s", __FUNCTION__, displayId, msg)
+ ALOGE("%s failed for display %" PRIu64 ": %s", __FUNCTION__, displayId, msg)
-#define LOG_HWC_ERROR(what, error, displayId) \
- ALOGE("%s: %s failed for display %d: %s (%d)", __FUNCTION__, what, displayId, \
+#define LOG_HWC_ERROR(what, error, displayId) \
+ ALOGE("%s: %s failed for display %" PRIu64 ": %s (%d)", __FUNCTION__, what, displayId, \
to_string(error).c_str(), static_cast<int32_t>(error))
#define RETURN_IF_INVALID_DISPLAY(displayId, ...) \
do { \
- if (!isValidDisplay(displayId)) { \
+ if (mDisplayData.count(displayId) == 0) { \
LOG_DISPLAY_ERROR(displayId, "Invalid display"); \
return __VA_ARGS__; \
} \
@@ -118,11 +118,6 @@
return mHwcDevice->getCapabilities().count(capability) > 0;
}
-bool HWComposer::isValidDisplay(int32_t displayId) const {
- return static_cast<size_t>(displayId) < mDisplayData.size() &&
- mDisplayData[displayId].hwcDisplay;
-}
-
void HWComposer::validateChange(HWC2::Composition from, HWC2::Composition to) {
bool valid = true;
switch (from) {
@@ -148,52 +143,50 @@
}
}
-std::optional<DisplayId> HWComposer::onHotplug(hwc2_display_t hwcDisplayId, int32_t displayType,
- HWC2::Connection connection) {
- if (displayType >= HWC_NUM_PHYSICAL_DISPLAY_TYPES) {
- ALOGE("Invalid display type of %d", displayType);
- return {};
- }
+std::optional<DisplayIdentificationInfo> HWComposer::onHotplug(hwc2_display_t hwcDisplayId,
+ HWC2::Connection connection) {
+ std::optional<DisplayIdentificationInfo> info;
- ALOGV("hotplug: %" PRIu64 ", %s %s", hwcDisplayId,
- displayType == DisplayDevice::DISPLAY_PRIMARY ? "primary" : "external",
- to_string(connection).c_str());
- mHwcDevice->onHotplug(hwcDisplayId, connection);
-
- std::optional<DisplayId> displayId;
-
- if (connection == HWC2::Connection::Connected) {
- uint8_t port;
- DisplayIdentificationData data;
- if (getDisplayIdentificationData(hwcDisplayId, &port, &data)) {
- displayId = generateDisplayId(port, data);
- ALOGE_IF(!displayId, "Failed to generate stable ID for display %" PRIu64, hwcDisplayId);
+ if (const auto displayId = toPhysicalDisplayId(hwcDisplayId)) {
+ info = DisplayIdentificationInfo{*displayId, std::string()};
+ } else {
+ if (connection == HWC2::Connection::Disconnected) {
+ ALOGE("Ignoring disconnection of invalid HWC display %" PRIu64, hwcDisplayId);
+ return {};
}
+
+ info = onHotplugConnect(hwcDisplayId);
+ if (!info) return {};
}
+ ALOGV("%s: %s %s display %" PRIu64 " with HWC ID %" PRIu64, __FUNCTION__,
+ to_string(connection).c_str(),
+ hwcDisplayId == mInternalHwcDisplayId ? "internal" : "external", info->id, hwcDisplayId);
+
+ mHwcDevice->onHotplug(hwcDisplayId, connection);
+
// Disconnect is handled through HWComposer::disconnectDisplay via
// SurfaceFlinger's onHotplugReceived callback handling
if (connection == HWC2::Connection::Connected) {
- mDisplayData[displayType].hwcDisplay = mHwcDevice->getDisplayById(hwcDisplayId);
- mHwcDisplaySlots[hwcDisplayId] = displayType;
+ mDisplayData[info->id].hwcDisplay = mHwcDevice->getDisplayById(hwcDisplayId);
+ mPhysicalDisplayIdMap[hwcDisplayId] = info->id;
}
- return displayId;
+ return info;
}
-bool HWComposer::onVsync(hwc2_display_t hwcDisplayId, int64_t timestamp, int32_t* outDisplayId) {
- const auto it = mHwcDisplaySlots.find(hwcDisplayId);
- if (it == mHwcDisplaySlots.end()) {
- LOG_HWC_DISPLAY_ERROR(hwcDisplayId, "Invalid display");
+bool HWComposer::onVsync(hwc2_display_t hwcDisplayId, int64_t timestamp) {
+ const auto displayId = toPhysicalDisplayId(hwcDisplayId);
+ if (!displayId) {
+ LOG_HWC_DISPLAY_ERROR(hwcDisplayId, "Invalid HWC display");
return false;
}
- const int32_t displayId = it->second;
- RETURN_IF_INVALID_DISPLAY(displayId, false);
+ RETURN_IF_INVALID_DISPLAY(*displayId, false);
- const auto& displayData = mDisplayData[displayId];
+ const auto& displayData = mDisplayData[*displayId];
if (displayData.isVirtual) {
- LOG_DISPLAY_ERROR(displayId, "Invalid operation on virtual display");
+ LOG_DISPLAY_ERROR(*displayId, "Invalid operation on virtual display");
return false;
}
@@ -204,31 +197,26 @@
// 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[displayId]) {
- ALOGW("Ignoring duplicate VSYNC event from HWC (t=%" PRId64 ")",
- timestamp);
+ if (timestamp == mLastHwVSync[*displayId]) {
+ ALOGW("Ignoring duplicate VSYNC event from HWC for display %" PRIu64 " (t=%" PRId64 ")",
+ *displayId, timestamp);
return false;
}
- mLastHwVSync[displayId] = timestamp;
+ mLastHwVSync[*displayId] = timestamp;
}
- if (outDisplayId) {
- *outDisplayId = displayId;
- }
-
- char tag[16];
- snprintf(tag, sizeof(tag), "HW_VSYNC_%1u", displayId);
- ATRACE_INT(tag, ++mVSyncCounts[displayId] & 1);
+ const auto tag = "HW_VSYNC_" + std::to_string(*displayId);
+ ATRACE_INT(tag.c_str(), ++mVSyncCounts[*displayId] & 1);
return true;
}
-status_t HWComposer::allocateVirtualDisplay(uint32_t width, uint32_t height,
- ui::PixelFormat* format, int32_t *outId) {
+std::optional<DisplayId> HWComposer::allocateVirtualDisplay(uint32_t width, uint32_t height,
+ ui::PixelFormat* format) {
if (mRemainingHwcVirtualDisplays == 0) {
ALOGE("%s: No remaining virtual displays", __FUNCTION__);
- return NO_MEMORY;
+ return {};
}
if (SurfaceFlinger::maxVirtualDisplaySize != 0 &&
@@ -236,41 +224,33 @@
height > SurfaceFlinger::maxVirtualDisplaySize)) {
ALOGE("%s: Display size %ux%u exceeds maximum dimension of %" PRIu64, __FUNCTION__, width,
height, SurfaceFlinger::maxVirtualDisplaySize);
- return INVALID_OPERATION;
+ return {};
}
-
HWC2::Display* display;
auto error = mHwcDevice->createVirtualDisplay(width, height, format,
&display);
if (error != HWC2::Error::None) {
ALOGE("%s: Failed to create HWC virtual display", __FUNCTION__);
- return NO_MEMORY;
+ return {};
}
- size_t displaySlot = 0;
- if (!mFreeDisplaySlots.empty()) {
- displaySlot = *mFreeDisplaySlots.begin();
- mFreeDisplaySlots.erase(displaySlot);
- } else if (mDisplayData.size() < INT32_MAX) {
- // Don't bother allocating a slot larger than we can return
- displaySlot = mDisplayData.size();
- mDisplayData.resize(displaySlot + 1);
+ DisplayId displayId;
+ if (mFreeVirtualDisplayIds.empty()) {
+ displayId = getVirtualDisplayId(mNextVirtualDisplayId++);
} else {
- ALOGE("%s: Unable to allocate a display slot", __FUNCTION__);
- return NO_MEMORY;
+ displayId = *mFreeVirtualDisplayIds.begin();
+ mFreeVirtualDisplayIds.erase(displayId);
}
- auto& displayData = mDisplayData[displaySlot];
+ auto& displayData = mDisplayData[displayId];
displayData.hwcDisplay = display;
displayData.isVirtual = true;
--mRemainingHwcVirtualDisplays;
- *outId = static_cast<int32_t>(displaySlot);
-
- return NO_ERROR;
+ return displayId;
}
-HWC2::Layer* HWComposer::createLayer(int32_t displayId) {
+HWC2::Layer* HWComposer::createLayer(DisplayId displayId) {
RETURN_IF_INVALID_DISPLAY(displayId, nullptr);
auto display = mDisplayData[displayId].hwcDisplay;
@@ -280,7 +260,7 @@
return layer;
}
-void HWComposer::destroyLayer(int32_t displayId, HWC2::Layer* layer) {
+void HWComposer::destroyLayer(DisplayId displayId, HWC2::Layer* layer) {
RETURN_IF_INVALID_DISPLAY(displayId);
auto display = mDisplayData[displayId].hwcDisplay;
@@ -288,7 +268,8 @@
RETURN_IF_HWC_ERROR(error, displayId);
}
-nsecs_t HWComposer::getRefreshTimestamp(int32_t displayId) const {
+nsecs_t HWComposer::getRefreshTimestamp(DisplayId displayId) const {
+ RETURN_IF_INVALID_DISPLAY(displayId, 0);
// 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.
@@ -298,17 +279,17 @@
return now - ((now - mLastHwVSync[displayId]) % vsyncPeriod);
}
-bool HWComposer::isConnected(int32_t displayId) const {
+bool HWComposer::isConnected(DisplayId displayId) const {
RETURN_IF_INVALID_DISPLAY(displayId, false);
- return mDisplayData[displayId].hwcDisplay->isConnected();
+ return mDisplayData.at(displayId).hwcDisplay->isConnected();
}
-std::vector<std::shared_ptr<const HWC2::Display::Config>>
- HWComposer::getConfigs(int32_t displayId) const {
+std::vector<std::shared_ptr<const HWC2::Display::Config>> HWComposer::getConfigs(
+ DisplayId displayId) const {
RETURN_IF_INVALID_DISPLAY(displayId, {});
- auto& displayData = mDisplayData[displayId];
- auto configs = mDisplayData[displayId].hwcDisplay->getConfigs();
+ const auto& displayData = mDisplayData.at(displayId);
+ auto configs = displayData.hwcDisplay->getConfigs();
if (displayData.configMap.empty()) {
for (size_t i = 0; i < configs.size(); ++i) {
displayData.configMap[i] = configs[i];
@@ -317,12 +298,12 @@
return configs;
}
-std::shared_ptr<const HWC2::Display::Config>
- HWComposer::getActiveConfig(int32_t displayId) const {
+std::shared_ptr<const HWC2::Display::Config> HWComposer::getActiveConfig(
+ DisplayId displayId) const {
RETURN_IF_INVALID_DISPLAY(displayId, nullptr);
std::shared_ptr<const HWC2::Display::Config> config;
- auto error = mDisplayData[displayId].hwcDisplay->getActiveConfig(&config);
+ auto error = mDisplayData.at(displayId).hwcDisplay->getActiveConfig(&config);
if (error == HWC2::Error::BadConfig) {
LOG_DISPLAY_ERROR(displayId, "No active config");
return nullptr;
@@ -338,11 +319,11 @@
return config;
}
-int HWComposer::getActiveConfigIndex(int32_t displayId) const {
+int HWComposer::getActiveConfigIndex(DisplayId displayId) const {
RETURN_IF_INVALID_DISPLAY(displayId, -1);
int index;
- auto error = mDisplayData[displayId].hwcDisplay->getActiveConfigIndex(&index);
+ auto error = mDisplayData.at(displayId).hwcDisplay->getActiveConfigIndex(&index);
if (error == HWC2::Error::BadConfig) {
LOG_DISPLAY_ERROR(displayId, "No active config");
return -1;
@@ -358,17 +339,17 @@
return index;
}
-std::vector<ui::ColorMode> HWComposer::getColorModes(int32_t displayId) const {
+std::vector<ui::ColorMode> HWComposer::getColorModes(DisplayId displayId) const {
RETURN_IF_INVALID_DISPLAY(displayId, {});
std::vector<ui::ColorMode> modes;
- auto error = mDisplayData[displayId].hwcDisplay->getColorModes(&modes);
+ auto error = mDisplayData.at(displayId).hwcDisplay->getColorModes(&modes);
RETURN_IF_HWC_ERROR(error, displayId, {});
return modes;
}
-status_t HWComposer::setActiveColorMode(int32_t displayId, ui::ColorMode mode,
- ui::RenderIntent renderIntent) {
+status_t HWComposer::setActiveColorMode(DisplayId displayId, ui::ColorMode mode,
+ ui::RenderIntent renderIntent) {
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
auto& displayData = mDisplayData[displayId];
@@ -381,8 +362,7 @@
return NO_ERROR;
}
-
-void HWComposer::setVsyncEnabled(int32_t displayId, HWC2::Vsync enabled) {
+void HWComposer::setVsyncEnabled(DisplayId displayId, HWC2::Vsync enabled) {
RETURN_IF_INVALID_DISPLAY(displayId);
auto& displayData = mDisplayData[displayId];
@@ -403,37 +383,30 @@
displayData.vsyncEnabled = enabled;
- char tag[16];
- snprintf(tag, sizeof(tag), "HW_VSYNC_ON_%1u", displayId);
- ATRACE_INT(tag, enabled == HWC2::Vsync::Enable ? 1 : 0);
+ const auto tag = "HW_VSYNC_ON_" + std::to_string(displayId);
+ ATRACE_INT(tag.c_str(), enabled == HWC2::Vsync::Enable ? 1 : 0);
}
}
-status_t HWComposer::setClientTarget(int32_t displayId, uint32_t slot,
- const sp<Fence>& acquireFence, const sp<GraphicBuffer>& target,
- ui::Dataspace dataspace) {
+status_t HWComposer::setClientTarget(DisplayId displayId, uint32_t slot,
+ const sp<Fence>& acquireFence, const sp<GraphicBuffer>& target,
+ ui::Dataspace dataspace) {
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
- ALOGV("setClientTarget for display %d", displayId);
+ ALOGV("setClientTarget for display %" PRIu64, displayId);
auto& hwcDisplay = mDisplayData[displayId].hwcDisplay;
auto error = hwcDisplay->setClientTarget(slot, target, acquireFence, dataspace);
RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE);
return NO_ERROR;
}
-status_t HWComposer::prepare(DisplayDevice& display,
- std::vector<CompositionInfo>& compositionData) {
+status_t HWComposer::prepare(DisplayId displayId, std::vector<CompositionInfo>& compositionData) {
ATRACE_CALL();
- Mutex::Autolock _l(mDisplayLock);
- const auto displayId = display.getId();
- if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {
- ALOGV("Skipping HWComposer prepare for non-HWC display");
- return NO_ERROR;
- }
-
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
+ Mutex::Autolock _l(mDisplayLock);
+
auto& displayData = mDisplayData[displayId];
auto& hwcDisplay = displayData.hwcDisplay;
if (!hwcDisplay->isConnected()) {
@@ -503,7 +476,8 @@
changedTypes[&*hwcLayer]);
compositionInfo.compositionType = changedTypes[&*hwcLayer];
compositionInfo.layer->mLayer->setCompositionType(displayId,
- compositionInfo.compositionType, false);
+ compositionInfo.compositionType,
+ false);
}
switch (compositionInfo.compositionType) {
@@ -542,49 +516,48 @@
return NO_ERROR;
}
-bool HWComposer::hasDeviceComposition(int32_t displayId) const {
- if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {
+bool HWComposer::hasDeviceComposition(const std::optional<DisplayId>& displayId) const {
+ if (!displayId) {
// Displays without a corresponding HWC display are never composed by
// the device
return false;
}
- RETURN_IF_INVALID_DISPLAY(displayId, false);
- return mDisplayData[displayId].hasDeviceComposition;
+ RETURN_IF_INVALID_DISPLAY(*displayId, false);
+ return mDisplayData.at(*displayId).hasDeviceComposition;
}
-bool HWComposer::hasFlipClientTargetRequest(int32_t displayId) const {
- if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {
+bool HWComposer::hasFlipClientTargetRequest(const std::optional<DisplayId>& displayId) const {
+ if (!displayId) {
// Displays without a corresponding HWC display are never composed by
// the device
return false;
}
- RETURN_IF_INVALID_DISPLAY(displayId, false);
- return ((static_cast<uint32_t>(mDisplayData[displayId].displayRequests) &
+ RETURN_IF_INVALID_DISPLAY(*displayId, false);
+ return ((static_cast<uint32_t>(mDisplayData.at(*displayId).displayRequests) &
static_cast<uint32_t>(HWC2::DisplayRequest::FlipClientTarget)) != 0);
}
-bool HWComposer::hasClientComposition(int32_t displayId) const {
- if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {
+bool HWComposer::hasClientComposition(const std::optional<DisplayId>& displayId) const {
+ if (!displayId) {
// Displays without a corresponding HWC display are always composed by
// the client
return true;
}
- RETURN_IF_INVALID_DISPLAY(displayId, true);
- return mDisplayData[displayId].hasClientComposition;
+ RETURN_IF_INVALID_DISPLAY(*displayId, true);
+ return mDisplayData.at(*displayId).hasClientComposition;
}
-sp<Fence> HWComposer::getPresentFence(int32_t displayId) const {
+sp<Fence> HWComposer::getPresentFence(DisplayId displayId) const {
RETURN_IF_INVALID_DISPLAY(displayId, Fence::NO_FENCE);
- return mDisplayData[displayId].lastPresentFence;
+ return mDisplayData.at(displayId).lastPresentFence;
}
-sp<Fence> HWComposer::getLayerReleaseFence(int32_t displayId,
- HWC2::Layer* layer) const {
+sp<Fence> HWComposer::getLayerReleaseFence(DisplayId displayId, HWC2::Layer* layer) const {
RETURN_IF_INVALID_DISPLAY(displayId, Fence::NO_FENCE);
- auto displayFences = mDisplayData[displayId].releaseFences;
+ auto displayFences = mDisplayData.at(displayId).releaseFences;
if (displayFences.count(layer) == 0) {
ALOGV("getLayerReleaseFence: Release fence not found");
return Fence::NO_FENCE;
@@ -592,7 +565,7 @@
return displayFences[layer];
}
-status_t HWComposer::presentAndGetReleaseFences(int32_t displayId) {
+status_t HWComposer::presentAndGetReleaseFences(DisplayId displayId) {
ATRACE_CALL();
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
@@ -620,8 +593,7 @@
return NO_ERROR;
}
-status_t HWComposer::setPowerMode(int32_t displayId, int32_t intMode) {
- ALOGV("setPowerMode(%d, %d)", displayId, intMode);
+status_t HWComposer::setPowerMode(DisplayId displayId, int32_t intMode) {
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
const auto& displayData = mDisplayData[displayId];
@@ -677,7 +649,7 @@
return NO_ERROR;
}
-status_t HWComposer::setActiveConfig(int32_t displayId, size_t configId) {
+status_t HWComposer::setActiveConfig(DisplayId displayId, size_t configId) {
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
auto& displayData = mDisplayData[displayId];
@@ -691,8 +663,7 @@
return NO_ERROR;
}
-status_t HWComposer::setColorTransform(int32_t displayId,
- const mat4& transform) {
+status_t HWComposer::setColorTransform(DisplayId displayId, const mat4& transform) {
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
auto& displayData = mDisplayData[displayId];
@@ -704,26 +675,34 @@
return NO_ERROR;
}
-void HWComposer::disconnectDisplay(int32_t displayId) {
+void HWComposer::disconnectDisplay(DisplayId displayId) {
RETURN_IF_INVALID_DISPLAY(displayId);
auto& displayData = mDisplayData[displayId];
// If this was a virtual display, add its slot back for reuse by future
// virtual displays
if (displayData.isVirtual) {
- mFreeDisplaySlots.insert(displayId);
+ mFreeVirtualDisplayIds.insert(displayId);
++mRemainingHwcVirtualDisplays;
}
const auto hwcDisplayId = displayData.hwcDisplay->getId();
- mHwcDisplaySlots.erase(hwcDisplayId);
- displayData = DisplayData();
+ mPhysicalDisplayIdMap.erase(hwcDisplayId);
+ mDisplayData.erase(displayId);
+ mVSyncCounts.erase(displayId);
+
+ // TODO(b/74619554): Select internal/external display from remaining displays.
+ if (hwcDisplayId == mInternalHwcDisplayId) {
+ mInternalHwcDisplayId.reset();
+ } else if (hwcDisplayId == mExternalHwcDisplayId) {
+ mExternalHwcDisplayId.reset();
+ }
mHwcDevice->destroyDisplay(hwcDisplayId);
}
-status_t HWComposer::setOutputBuffer(int32_t displayId,
- const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) {
+status_t HWComposer::setOutputBuffer(DisplayId displayId, const sp<Fence>& acquireFence,
+ const sp<GraphicBuffer>& buffer) {
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
const auto& displayData = mDisplayData[displayId];
@@ -737,13 +716,12 @@
return NO_ERROR;
}
-void HWComposer::clearReleaseFences(int32_t displayId) {
+void HWComposer::clearReleaseFences(DisplayId displayId) {
RETURN_IF_INVALID_DISPLAY(displayId);
mDisplayData[displayId].releaseFences.clear();
}
-status_t HWComposer::getHdrCapabilities(
- int32_t displayId, HdrCapabilities* outCapabilities) {
+status_t HWComposer::getHdrCapabilities(DisplayId displayId, HdrCapabilities* outCapabilities) {
RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX);
auto& hwcDisplay = mDisplayData[displayId].hwcDisplay;
@@ -752,22 +730,22 @@
return NO_ERROR;
}
-int32_t HWComposer::getSupportedPerFrameMetadata(int32_t displayId) const {
+int32_t HWComposer::getSupportedPerFrameMetadata(DisplayId displayId) const {
RETURN_IF_INVALID_DISPLAY(displayId, 0);
- return mDisplayData[displayId].hwcDisplay->getSupportedPerFrameMetadata();
+ return mDisplayData.at(displayId).hwcDisplay->getSupportedPerFrameMetadata();
}
-std::vector<ui::RenderIntent> HWComposer::getRenderIntents(int32_t displayId,
- ui::ColorMode colorMode) const {
+std::vector<ui::RenderIntent> HWComposer::getRenderIntents(DisplayId displayId,
+ ui::ColorMode colorMode) const {
RETURN_IF_INVALID_DISPLAY(displayId, {});
std::vector<ui::RenderIntent> renderIntents;
- auto error = mDisplayData[displayId].hwcDisplay->getRenderIntents(colorMode, &renderIntents);
+ auto error = mDisplayData.at(displayId).hwcDisplay->getRenderIntents(colorMode, &renderIntents);
RETURN_IF_HWC_ERROR(error, displayId, {});
return renderIntents;
}
-mat4 HWComposer::getDataspaceSaturationMatrix(int32_t displayId, ui::Dataspace dataspace) {
+mat4 HWComposer::getDataspaceSaturationMatrix(DisplayId displayId, ui::Dataspace dataspace) {
RETURN_IF_INVALID_DISPLAY(displayId, {});
mat4 matrix;
@@ -808,12 +786,67 @@
result.append(mHwcDevice->dump().c_str());
}
-std::optional<hwc2_display_t>
-HWComposer::getHwcDisplayId(int32_t displayId) const {
- if (!isValidDisplay(displayId)) {
+std::optional<DisplayId> HWComposer::toPhysicalDisplayId(hwc2_display_t hwcDisplayId) const {
+ if (const auto it = mPhysicalDisplayIdMap.find(hwcDisplayId);
+ it != mPhysicalDisplayIdMap.end()) {
+ return it->second;
+ }
+ return {};
+}
+
+std::optional<hwc2_display_t> HWComposer::fromPhysicalDisplayId(DisplayId displayId) const {
+ if (const auto it = mDisplayData.find(displayId);
+ it != mDisplayData.end() && !it->second.isVirtual) {
+ return it->second.hwcDisplay->getId();
+ }
+ return {};
+}
+
+std::optional<DisplayIdentificationInfo> HWComposer::onHotplugConnect(hwc2_display_t hwcDisplayId) {
+ if (isUsingVrComposer() && mInternalHwcDisplayId) {
+ ALOGE("Ignoring connection of external display %" PRIu64 " in VR mode", hwcDisplayId);
return {};
}
- return mDisplayData[displayId].hwcDisplay->getId();
+
+ uint8_t port;
+ DisplayIdentificationData data;
+ const bool hasMultiDisplaySupport = getDisplayIdentificationData(hwcDisplayId, &port, &data);
+
+ if (mPhysicalDisplayIdMap.empty()) {
+ mHasMultiDisplaySupport = hasMultiDisplaySupport;
+ ALOGI("Switching to %s multi-display mode",
+ hasMultiDisplaySupport ? "generalized" : "legacy");
+ } else if (mHasMultiDisplaySupport && !hasMultiDisplaySupport) {
+ ALOGE("Ignoring connection of display %" PRIu64 " without identification data",
+ hwcDisplayId);
+ return {};
+ }
+
+ std::optional<DisplayIdentificationInfo> info;
+
+ if (mHasMultiDisplaySupport) {
+ info = parseDisplayIdentificationData(port, data);
+ ALOGE_IF(!info, "Failed to parse identification data for display %" PRIu64, hwcDisplayId);
+ } else if (mInternalHwcDisplayId && mExternalHwcDisplayId) {
+ ALOGE("Ignoring connection of tertiary display %" PRIu64, hwcDisplayId);
+ return {};
+ } else {
+ ALOGW_IF(hasMultiDisplaySupport, "Ignoring identification data for display %" PRIu64,
+ hwcDisplayId);
+ port = mInternalHwcDisplayId ? HWC_DISPLAY_EXTERNAL : HWC_DISPLAY_PRIMARY;
+ }
+
+ if (!mInternalHwcDisplayId) {
+ mInternalHwcDisplayId = hwcDisplayId;
+ } else if (!mExternalHwcDisplayId) {
+ mExternalHwcDisplayId = hwcDisplayId;
+ }
+
+ if (info) return info;
+
+ return DisplayIdentificationInfo{getFallbackDisplayId(port),
+ hwcDisplayId == mInternalHwcDisplayId ? "Internal display"
+ : "External display"};
}
} // namespace android