Split refresh rate range into two ranges
To prevent low-priority refresh rate considerations from overriding the
app frame rate as specified via the new setFrameRate() api, split the
display refresh rate range into "primary" and "app request" ranges. The
primary range includes the low priority considerations, while the app
request range removes two lower priority considerations.
In general, surface flinger will keep the display refresh rate within
the primary range, but layers with frame rate settings via the
setFrameRate() api may cause surface flinger to pick a refresh rate
outside the primary range. Surface flinger will never choose a refresh
rate outside the app request range specified by display manager.
Bug: 148978562
Test: - Added a new unit test to DisplayModeDirectorTest to verify that
display manager strips lower priority considerations when
deciding the app request range.
- Added a new unit test to RefreshRateConfigsTest to verify
RefreshRateConfigs handles the primary vs app request range
correctly.
- Manual test: Confirmed that with the "force 90Hz refresh rate" option
turned on, we don't switch to 60Hz when playing a 60Hz video.
- Manual test: Confirmed that with the "force 90Hz refresh rate" option
turned on, when an app calls setFrameRate(60), we stay at 60Hz.
- Manual test: Modified a Pixel 4 XL to prefer 60Hz in low brightness,
entered low brightness, and confirmed we don't touch boost to 90Hz.
- Manual test: Confirmed that Maps stays at 60Hz on Pixel 4.
- Manual test: Turned on verbose logs in RefreshRateConfigs.cpp,
confirmed they look good.
- Manual test: Inspected dumpsys output, confirmed the primary and
app request refresh rate ranges are printed correctly.
Change-Id: Ib16cc9b6158efa575cdbfbb7a0ad014008a3e5af
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 6fd53cf..2a27a9a 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -931,8 +931,11 @@
}
virtual status_t setDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
- int32_t defaultConfig, float minRefreshRate,
- float maxRefreshRate) {
+ int32_t defaultConfig,
+ float primaryRefreshRateMin,
+ float primaryRefreshRateMax,
+ float appRequestRefreshRateMin,
+ float appRequestRefreshRateMax) {
Parcel data, reply;
status_t result = data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
if (result != NO_ERROR) {
@@ -949,14 +952,26 @@
ALOGE("setDesiredDisplayConfigSpecs failed to write defaultConfig: %d", result);
return result;
}
- result = data.writeFloat(minRefreshRate);
+ result = data.writeFloat(primaryRefreshRateMin);
if (result != NO_ERROR) {
- ALOGE("setDesiredDisplayConfigSpecs failed to write minRefreshRate: %d", result);
+ ALOGE("setDesiredDisplayConfigSpecs failed to write primaryRefreshRateMin: %d", result);
return result;
}
- result = data.writeFloat(maxRefreshRate);
+ result = data.writeFloat(primaryRefreshRateMax);
if (result != NO_ERROR) {
- ALOGE("setDesiredDisplayConfigSpecs failed to write maxRefreshRate: %d", result);
+ ALOGE("setDesiredDisplayConfigSpecs failed to write primaryRefreshRateMax: %d", result);
+ return result;
+ }
+ result = data.writeFloat(appRequestRefreshRateMin);
+ if (result != NO_ERROR) {
+ ALOGE("setDesiredDisplayConfigSpecs failed to write appRequestRefreshRateMin: %d",
+ result);
+ return result;
+ }
+ result = data.writeFloat(appRequestRefreshRateMax);
+ if (result != NO_ERROR) {
+ ALOGE("setDesiredDisplayConfigSpecs failed to write appRequestRefreshRateMax: %d",
+ result);
return result;
}
@@ -971,9 +986,14 @@
virtual status_t getDesiredDisplayConfigSpecs(const sp<IBinder>& displayToken,
int32_t* outDefaultConfig,
- float* outMinRefreshRate,
- float* outMaxRefreshRate) {
- if (!outDefaultConfig || !outMinRefreshRate || !outMaxRefreshRate) return BAD_VALUE;
+ float* outPrimaryRefreshRateMin,
+ float* outPrimaryRefreshRateMax,
+ float* outAppRequestRefreshRateMin,
+ float* outAppRequestRefreshRateMax) {
+ if (!outDefaultConfig || !outPrimaryRefreshRateMin || !outPrimaryRefreshRateMax ||
+ !outAppRequestRefreshRateMin || !outAppRequestRefreshRateMax) {
+ return BAD_VALUE;
+ }
Parcel data, reply;
status_t result = data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
if (result != NO_ERROR) {
@@ -996,14 +1016,26 @@
ALOGE("getDesiredDisplayConfigSpecs failed to read defaultConfig: %d", result);
return result;
}
- result = reply.readFloat(outMinRefreshRate);
+ result = reply.readFloat(outPrimaryRefreshRateMin);
if (result != NO_ERROR) {
- ALOGE("getDesiredDisplayConfigSpecs failed to read minRefreshRate: %d", result);
+ ALOGE("getDesiredDisplayConfigSpecs failed to read primaryRefreshRateMin: %d", result);
return result;
}
- result = reply.readFloat(outMaxRefreshRate);
+ result = reply.readFloat(outPrimaryRefreshRateMax);
if (result != NO_ERROR) {
- ALOGE("getDesiredDisplayConfigSpecs failed to read maxRefreshRate: %d", result);
+ ALOGE("getDesiredDisplayConfigSpecs failed to read primaryRefreshRateMax: %d", result);
+ return result;
+ }
+ result = reply.readFloat(outAppRequestRefreshRateMin);
+ if (result != NO_ERROR) {
+ ALOGE("getDesiredDisplayConfigSpecs failed to read appRequestRefreshRateMin: %d",
+ result);
+ return result;
+ }
+ result = reply.readFloat(outAppRequestRefreshRateMax);
+ if (result != NO_ERROR) {
+ ALOGE("getDesiredDisplayConfigSpecs failed to read appRequestRefreshRateMax: %d",
+ result);
return result;
}
return reply.readInt32();
@@ -1835,20 +1867,38 @@
ALOGE("setDesiredDisplayConfigSpecs: failed to read defaultConfig: %d", result);
return result;
}
- float minRefreshRate;
- result = data.readFloat(&minRefreshRate);
+ float primaryRefreshRateMin;
+ result = data.readFloat(&primaryRefreshRateMin);
if (result != NO_ERROR) {
- ALOGE("setDesiredDisplayConfigSpecs: failed to read minRefreshRate: %d", result);
+ ALOGE("setDesiredDisplayConfigSpecs: failed to read primaryRefreshRateMin: %d",
+ result);
return result;
}
- float maxRefreshRate;
- result = data.readFloat(&maxRefreshRate);
+ float primaryRefreshRateMax;
+ result = data.readFloat(&primaryRefreshRateMax);
if (result != NO_ERROR) {
- ALOGE("setDesiredDisplayConfigSpecs: failed to read maxRefreshRate: %d", result);
+ ALOGE("setDesiredDisplayConfigSpecs: failed to read primaryRefreshRateMax: %d",
+ result);
return result;
}
- result = setDesiredDisplayConfigSpecs(displayToken, defaultConfig, minRefreshRate,
- maxRefreshRate);
+ float appRequestRefreshRateMin;
+ result = data.readFloat(&appRequestRefreshRateMin);
+ if (result != NO_ERROR) {
+ ALOGE("setDesiredDisplayConfigSpecs: failed to read appRequestRefreshRateMin: %d",
+ result);
+ return result;
+ }
+ float appRequestRefreshRateMax;
+ result = data.readFloat(&appRequestRefreshRateMax);
+ if (result != NO_ERROR) {
+ ALOGE("setDesiredDisplayConfigSpecs: failed to read appRequestRefreshRateMax: %d",
+ result);
+ return result;
+ }
+ result =
+ setDesiredDisplayConfigSpecs(displayToken, defaultConfig, primaryRefreshRateMin,
+ primaryRefreshRateMax, appRequestRefreshRateMin,
+ appRequestRefreshRateMax);
if (result != NO_ERROR) {
ALOGE("setDesiredDisplayConfigSpecs: failed to call setDesiredDisplayConfigSpecs: "
"%d",
@@ -1862,11 +1912,16 @@
CHECK_INTERFACE(ISurfaceComposer, data, reply);
sp<IBinder> displayToken = data.readStrongBinder();
int32_t defaultConfig;
- float minRefreshRate;
- float maxRefreshRate;
+ float primaryRefreshRateMin;
+ float primaryRefreshRateMax;
+ float appRequestRefreshRateMin;
+ float appRequestRefreshRateMax;
- status_t result = getDesiredDisplayConfigSpecs(displayToken, &defaultConfig,
- &minRefreshRate, &maxRefreshRate);
+ status_t result =
+ getDesiredDisplayConfigSpecs(displayToken, &defaultConfig,
+ &primaryRefreshRateMin, &primaryRefreshRateMax,
+ &appRequestRefreshRateMin,
+ &appRequestRefreshRateMax);
if (result != NO_ERROR) {
ALOGE("getDesiredDisplayConfigSpecs: failed to get getDesiredDisplayConfigSpecs: "
"%d",
@@ -1879,14 +1934,28 @@
ALOGE("getDesiredDisplayConfigSpecs: failed to write defaultConfig: %d", result);
return result;
}
- result = reply->writeFloat(minRefreshRate);
+ result = reply->writeFloat(primaryRefreshRateMin);
if (result != NO_ERROR) {
- ALOGE("getDesiredDisplayConfigSpecs: failed to write minRefreshRate: %d", result);
+ ALOGE("getDesiredDisplayConfigSpecs: failed to write primaryRefreshRateMin: %d",
+ result);
return result;
}
- result = reply->writeFloat(maxRefreshRate);
+ result = reply->writeFloat(primaryRefreshRateMax);
if (result != NO_ERROR) {
- ALOGE("getDesiredDisplayConfigSpecs: failed to write maxRefreshRate: %d", result);
+ ALOGE("getDesiredDisplayConfigSpecs: failed to write primaryRefreshRateMax: %d",
+ result);
+ return result;
+ }
+ result = reply->writeFloat(appRequestRefreshRateMin);
+ if (result != NO_ERROR) {
+ ALOGE("getDesiredDisplayConfigSpecs: failed to write appRequestRefreshRateMin: %d",
+ result);
+ return result;
+ }
+ result = reply->writeFloat(appRequestRefreshRateMax);
+ if (result != NO_ERROR) {
+ ALOGE("getDesiredDisplayConfigSpecs: failed to write appRequestRefreshRateMax: %d",
+ result);
return result;
}
reply->writeInt32(result);