SF: Don't cache display modes in HWComposer
The display modes should be stored only in DisplayDevice.
Having the state also in HWComposer is unnesesary and hard to
keep in sync with SF, e.g. during hotplug processing of
displays which can change their supported modes.
Any HWC calls which need to validate their parameters need
to go through display device. This additinally makes the
code more undestandable.
Bug: 159590486
Test: presubmit
Change-Id: I40b03c09a5fd6092fca0682d602deb70db022fa5
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index a63a3d7..6b78627 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -68,6 +68,7 @@
#include <ui/ColorSpace.h>
#include <ui/DebugUtils.h>
#include <ui/DisplayConfig.h>
+#include <ui/DisplayId.h>
#include <ui/DisplayInfo.h>
#include <ui/DisplayStatInfo.h>
#include <ui/DisplayState.h>
@@ -1586,12 +1587,11 @@
}
nsecs_t SurfaceFlinger::getVsyncPeriodFromHWC() const {
- const auto displayId = getInternalDisplayIdLocked();
- if (!displayId || !getHwComposer().isConnected(*displayId)) {
- return 0;
+ if (const auto display = getDefaultDisplayDeviceLocked()) {
+ return display->getVsyncPeriodFromHWC();
}
- return getHwComposer().getDisplayVsyncPeriod(*displayId);
+ return 0;
}
void SurfaceFlinger::onVsyncReceived(int32_t sequenceId, hal::HWDisplayId hwcDisplayId,
@@ -1605,6 +1605,12 @@
return;
}
+ if (const auto displayId = getHwComposer().toPhysicalDisplayId(hwcDisplayId)) {
+ auto token = getPhysicalDisplayTokenLocked(*displayId);
+ auto display = getDisplayDeviceLocked(token);
+ display->onVsync(timestamp);
+ }
+
if (!getHwComposer().onVsync(hwcDisplayId, timestamp)) {
return;
}
@@ -2223,8 +2229,7 @@
} else if (isDisplayConnected) {
// The HWC doesn't support present fences, so use the refresh
// timestamp instead.
- const nsecs_t presentTime =
- getHwComposer().getRefreshTimestamp(display->getPhysicalId());
+ const nsecs_t presentTime = display->getRefreshTimestamp();
mAnimFrameTracker.setActualPresentTime(presentTime);
}
mAnimFrameTracker.advanceFrame();
@@ -2361,6 +2366,24 @@
// here the transaction has been committed
}
+DisplayModes SurfaceFlinger::loadSupportedDisplayModes(PhysicalDisplayId displayId) const {
+ const auto hwcModes = getHwComposer().getModes(displayId);
+ DisplayModes modes;
+ size_t nextModeId = 0;
+ for (const auto& hwcMode : hwcModes) {
+ modes.push_back(DisplayMode::Builder(hwcMode.hwcId)
+ .setId(DisplayModeId{nextModeId++})
+ .setWidth(hwcMode.width)
+ .setHeight(hwcMode.height)
+ .setVsyncPeriod(hwcMode.vsyncPeriod)
+ .setDpiX(hwcMode.dpiX)
+ .setDpiY(hwcMode.dpiY)
+ .setConfigGroup(hwcMode.configGroup)
+ .build());
+ }
+ return modes;
+}
+
void SurfaceFlinger::processDisplayHotplugEventsLocked() {
for (const auto& event : mPendingHotplugEvents) {
std::optional<DisplayIdentificationInfo> info =
@@ -2374,8 +2397,14 @@
const auto it = mPhysicalDisplayTokens.find(displayId);
if (event.connection == hal::Connection::CONNECTED) {
- auto supportedModes = getHwComposer().getModes(displayId);
- const auto activeMode = getHwComposer().getActiveMode(displayId);
+ auto supportedModes = loadSupportedDisplayModes(displayId);
+ const auto activeModeHwcId = getHwComposer().getActiveMode(displayId);
+ LOG_ALWAYS_FATAL_IF(!activeModeHwcId, "HWC returned no active config");
+
+ const auto activeMode = *std::find_if(supportedModes.begin(), supportedModes.end(),
+ [activeModeHwcId](const DisplayModePtr& mode) {
+ return mode->getHwcId() == *activeModeHwcId;
+ });
// TODO(b/175678215) Handle the case when activeMode is not in supportedModes
if (it == mPhysicalDisplayTokens.end()) {
@@ -2526,17 +2555,15 @@
void SurfaceFlinger::processDisplayAdded(const wp<IBinder>& displayToken,
const DisplayDeviceState& state) {
- int width = 0;
- int height = 0;
+ ui::Size resolution(0, 0);
ui::PixelFormat pixelFormat = static_cast<ui::PixelFormat>(PIXEL_FORMAT_UNKNOWN);
if (state.physical) {
- width = state.physical->activeMode->getWidth();
- height = state.physical->activeMode->getHeight();
+ resolution = state.physical->activeMode->getSize();
pixelFormat = static_cast<ui::PixelFormat>(PIXEL_FORMAT_RGBA_8888);
} else if (state.surface != nullptr) {
- int status = state.surface->query(NATIVE_WINDOW_WIDTH, &width);
+ int status = state.surface->query(NATIVE_WINDOW_WIDTH, &resolution.width);
ALOGE_IF(status != NO_ERROR, "Unable to query width (%d)", status);
- status = state.surface->query(NATIVE_WINDOW_HEIGHT, &height);
+ status = state.surface->query(NATIVE_WINDOW_HEIGHT, &resolution.height);
ALOGE_IF(status != NO_ERROR, "Unable to query height (%d)", status);
int intPixelFormat;
status = state.surface->query(NATIVE_WINDOW_FORMAT, &intPixelFormat);
@@ -2553,7 +2580,7 @@
if (const auto& physical = state.physical) {
builder.setPhysical({physical->id, physical->type});
}
- builder.setPixels(ui::Size(width, height));
+ builder.setPixels(resolution);
builder.setPixelFormat(pixelFormat);
builder.setIsSecure(state.isSecure);
builder.setLayerStackId(state.layerStack);
@@ -2588,7 +2615,8 @@
const auto physicalId = PhysicalDisplayId::tryCast(displayId);
LOG_FATAL_IF(!physicalId);
displaySurface = new FramebufferSurface(getHwComposer(), *physicalId, bqConsumer,
- maxGraphicsWidth, maxGraphicsHeight);
+ state.physical->activeMode->getSize(),
+ ui::Size(maxGraphicsWidth, maxGraphicsHeight));
producer = bqProducer;
}
@@ -4843,15 +4871,12 @@
" gpu_to_cpu_unsupported : %d\n",
mTransactionFlags.load(), !mGpuToCpuSupported);
- if (const auto displayId = getInternalDisplayIdLocked();
- displayId && getHwComposer().isConnected(*displayId)) {
- const auto activeConfig = getHwComposer().getActiveMode(*displayId);
+ if (const auto display = getDefaultDisplayDeviceLocked()) {
std::string fps, xDpi, yDpi;
- if (activeConfig) {
- const auto vsyncPeriod = getHwComposer().getDisplayVsyncPeriod(*displayId);
- fps = base::StringPrintf("%s", to_string(Fps::fromPeriodNsecs(vsyncPeriod)).c_str());
- xDpi = base::StringPrintf("%.2f", activeConfig->getDpiX());
- yDpi = base::StringPrintf("%.2f", activeConfig->getDpiY());
+ if (const auto activeMode = display->getActiveMode()) {
+ fps = to_string(activeMode->getFps());
+ xDpi = base::StringPrintf("%.2f", activeMode->getDpiX());
+ yDpi = base::StringPrintf("%.2f", activeMode->getDpiY());
} else {
fps = "unknown";
xDpi = "unknown";