[SurfaceFlinger] Add setColorSpaceAgnostic API.
Some layers, for example ScreenDecorOverlay*, only carry black, white or gray
with some transpanrency, these values are special as they are color space
agnostic. We don't need to do color conversion on them, instead we want to
intercept the color space before we send to hardware composer for validation.
This patch adds an API to allow this to happen.
BUG: 126616348
Test: Build, flash and boot. Verify by calling in Letterbox.
Change-Id: I62c9bf4feb320b466584a90df707c2b04213339c
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 962d263..84ba644 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -100,6 +100,7 @@
output.writeFloat(bgColorAlpha);
output.writeUint32(static_cast<uint32_t>(bgColorDataspace));
+ output.writeBool(colorSpaceAgnostic);
return NO_ERROR;
}
@@ -177,6 +178,7 @@
bgColorAlpha = input.readFloat();
bgColorDataspace = static_cast<ui::Dataspace>(input.readUint32());
+ colorSpaceAgnostic = input.readBool();
return NO_ERROR;
}
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 050ba87..0a4ad46 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -989,6 +989,20 @@
return *this;
}
+SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setColorSpaceAgnostic(
+ const sp<SurfaceControl>& sc, const bool agnostic) {
+ layer_state_t* s = getLayerState(sc);
+ if (!s) {
+ mStatus = BAD_INDEX;
+ return *this;
+ }
+ s->what |= layer_state_t::eColorSpaceAgnosticChanged;
+ s->colorSpaceAgnostic = agnostic;
+
+ registerSurfaceControlForCallback(sc);
+ return *this;
+}
+
SurfaceComposerClient::Transaction&
SurfaceComposerClient::Transaction::addTransactionCompletedCallback(
TransactionCompletedCallbackTakesContext callback, void* callbackContext) {
diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index 32d7391..35e795c 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h
@@ -88,6 +88,7 @@
eCachedBufferChanged = 0x2'00000000,
eBackgroundColorChanged = 0x4'00000000,
eMetadataChanged = 0x8'00000000,
+ eColorSpaceAgnosticChanged = 0x10'00000000,
};
layer_state_t()
@@ -115,7 +116,8 @@
api(-1),
colorTransform(mat4()),
bgColorAlpha(0),
- bgColorDataspace(ui::Dataspace::UNKNOWN) {
+ bgColorDataspace(ui::Dataspace::UNKNOWN),
+ colorSpaceAgnostic(false) {
matrix.dsdx = matrix.dtdy = 1.0f;
matrix.dsdy = matrix.dtdx = 0.0f;
hdrMetadata.validTypes = 0;
@@ -192,6 +194,10 @@
// the background color layer
float bgColorAlpha;
ui::Dataspace bgColorDataspace;
+
+ // A color space agnostic layer means the color of this layer can be
+ // interpreted in any color space.
+ bool colorSpaceAgnostic;
};
struct ComposerState {
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index e062339..2c483ee 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -360,6 +360,7 @@
Transaction& setSidebandStream(const sp<SurfaceControl>& sc,
const sp<NativeHandle>& sidebandStream);
Transaction& setDesiredPresentTime(nsecs_t desiredPresentTime);
+ Transaction& setColorSpaceAgnostic(const sp<SurfaceControl>& sc, const bool agnostic);
Transaction& addTransactionCompletedCallback(
TransactionCompletedCallbackTakesContext callback, void* callbackContext);