Query the new DisplayCapability for DISPLAY_DECORATION
This allows clients (i.e. SystemUi) to know whether to use
Composition.DISPLAY_DECORATION.
Bug: 193170859
Test: manual
Test: TODO (b/212697197)
Change-Id: I0d3e93bb04937f81e95ef77d196b861621bbdc8d
diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 7f73013..a931709 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -1134,6 +1134,34 @@
return NO_ERROR;
}
+ status_t getDisplayDecorationSupport(const sp<IBinder>& displayToken,
+ bool* outSupport) const override {
+ Parcel data, reply;
+ status_t error = data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ if (error != NO_ERROR) {
+ ALOGE("getDisplayDecorationSupport: failed to write interface token: %d", error);
+ return error;
+ }
+ error = data.writeStrongBinder(displayToken);
+ if (error != NO_ERROR) {
+ ALOGE("getDisplayDecorationSupport: failed to write display token: %d", error);
+ return error;
+ }
+ error = remote()->transact(BnSurfaceComposer::GET_DISPLAY_DECORATION_SUPPORT, data, &reply);
+ if (error != NO_ERROR) {
+ ALOGE("getDisplayDecorationSupport: failed to transact: %d", error);
+ return error;
+ }
+ bool support;
+ error = reply.readBool(&support);
+ if (error != NO_ERROR) {
+ ALOGE("getDisplayDecorationSupport: failed to read support: %d", error);
+ return error;
+ }
+ *outSupport = support;
+ return NO_ERROR;
+ }
+
status_t setFrameRate(const sp<IGraphicBufferProducer>& surface, float frameRate,
int8_t compatibility, int8_t changeFrameRateStrategy) override {
Parcel data, reply;
@@ -2016,6 +2044,19 @@
return setGlobalShadowSettings(ambientColor, spotColor, lightPosY, lightPosZ,
lightRadius);
}
+ case GET_DISPLAY_DECORATION_SUPPORT: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ sp<IBinder> displayToken;
+ status_t error = data.readNullableStrongBinder(&displayToken);
+ if (error != NO_ERROR) {
+ ALOGE("getDisplayDecorationSupport: failed to read display token: %d", error);
+ return error;
+ }
+ bool support = false;
+ error = getDisplayDecorationSupport(displayToken, &support);
+ reply->writeBool(support);
+ return error;
+ }
case SET_FRAME_RATE: {
CHECK_INTERFACE(ISurfaceComposer, data, reply);
sp<IBinder> binder;
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index cf04ec8..6653636 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -2218,6 +2218,12 @@
lightRadius);
}
+bool SurfaceComposerClient::getDisplayDecorationSupport(const sp<IBinder>& displayToken) {
+ bool support = false;
+ ComposerService::getComposerService()->getDisplayDecorationSupport(displayToken, &support);
+ return support;
+}
+
int SurfaceComposerClient::getGPUContextPriority() {
return ComposerService::getComposerService()->getGPUContextPriority();
}
diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index 2546e4c..69dce9d 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -508,6 +508,22 @@
float lightRadius) = 0;
/*
+ * Gets whether a display supports DISPLAY_DECORATION layers.
+ *
+ * displayToken
+ * The token of the display.
+ * outSupport
+ * An output parameter for whether the display supports
+ * DISPLAY_DECORATION layers.
+ *
+ * Returns NO_ERROR upon success. Otherwise,
+ * NAME_NOT_FOUND if the display is invalid, or
+ * BAD_VALUE if the output parameter is invalid.
+ */
+ virtual status_t getDisplayDecorationSupport(const sp<IBinder>& displayToken,
+ bool* outSupport) const = 0;
+
+ /*
* Sets the intended frame rate for a surface. See ANativeWindow_setFrameRate() for more info.
*/
virtual status_t setFrameRate(const sp<IGraphicBufferProducer>& surface, float frameRate,
@@ -628,6 +644,7 @@
ADD_WINDOW_INFOS_LISTENER,
REMOVE_WINDOW_INFOS_LISTENER,
GET_PRIMARY_PHYSICAL_DISPLAY_ID,
+ GET_DISPLAY_DECORATION_SUPPORT,
// Always append new enum to the end.
};
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index 17b4846..87606d6 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -272,6 +272,16 @@
static status_t setGlobalShadowSettings(const half4& ambientColor, const half4& spotColor,
float lightPosY, float lightPosZ, float lightRadius);
+ /*
+ * Returns whether a display supports DISPLAY_DECORATION layers.
+ *
+ * displayToken
+ * The token of the display.
+ *
+ * Returns whether a display supports DISPLAY_DECORATION layers.
+ */
+ static bool getDisplayDecorationSupport(const sp<IBinder>& displayToken);
+
// ------------------------------------------------------------------------
// surface creation / destruction
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index d6ac3f9..d5e089a 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -882,6 +882,11 @@
return NO_ERROR;
}
+ status_t getDisplayDecorationSupport(const sp<IBinder>& /*displayToken*/,
+ bool* /*outSupport*/) const override {
+ return NO_ERROR;
+ }
+
status_t setFrameRate(const sp<IGraphicBufferProducer>& /*surface*/, float /*frameRate*/,
int8_t /*compatibility*/, int8_t /*changeFrameRateStrategy*/) override {
return NO_ERROR;