commit dfde511980f96cf583eda87e0ee24026d94caa31
author Peiyong Lin <lpy@google.com> Tue Jun 05 10:58:41 2018 -0700
committer Peiyong Lin <lpy@google.com> Tue Jun 05 14:08:09 2018 -0700
tree fc7aa36a1b9703b3e4591d49b0ab456ce3c25567
parent 7ea1dc7fc863079c36e9ceedac255f3490a98f4a

[SurfaceFlinger] Respect HDR data space.

Respect HDR data space when there is no legacy HDR support. Previously we only
cared about HDR data space when it is supported, however, on Pixel 2 there is
no HDR mode support. This patch makes sure that when HDR mode is not supported,
we fall back to Display P3 color mode correctly.

BUG: 80404330
Test: Build, flash and watch Youtube HDR
Change-Id: I7d27711fe4d33268e5ebbd14fce0975f9e642e84

services/surfaceflinger/DisplayDevice.cpp

diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index d2ef5a2..4d2b0ea 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -760,12 +760,12 @@
     return iter != mColorModes.end() && iter->second.renderIntent == intent;
 }
 
-bool DisplayDevice::hasModernHdrSupport(Dataspace dataspace) const {
+bool DisplayDevice::hasLegacyHdrSupport(Dataspace dataspace) const {
     if ((dataspace == Dataspace::BT2020_PQ && hasHDR10Support()) ||
         (dataspace == Dataspace::BT2020_HLG && hasHLGSupport())) {
         auto iter =
                 mColorModes.find(getColorModeKey(dataspace, RenderIntent::TONE_MAP_COLORIMETRIC));
-        return iter != mColorModes.end() && iter->second.dataspace == dataspace;
+        return iter == mColorModes.end() || iter->second.dataspace != dataspace;
     }
 
     return false;

services/surfaceflinger/DisplayDevice.h

diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 93377a2..a4a6554 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -152,9 +152,9 @@
     bool hasHLGSupport() const { return mHasHLG; }
     bool hasDolbyVisionSupport() const { return mHasDolbyVision; }
 
-    // Return true if the corresponding color mode for the HDR dataspace is
-    // supported.
-    bool hasModernHdrSupport(ui::Dataspace dataspace) const;
+    // Return true if the HDR dataspace is supported but
+    // there is no corresponding color mode.
+    bool hasLegacyHdrSupport(ui::Dataspace dataspace) const;
 
     // The returned HdrCapabilities is the combination of HDR capabilities from
     // hardware composer and RenderEngine. When the DisplayDevice supports wide

services/surfaceflinger/SurfaceFlinger.cpp

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index b20a8f8..ce868a9 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1857,9 +1857,9 @@
     Dataspace hdrDataSpace;
     Dataspace bestDataSpace = getBestDataspace(display, &hdrDataSpace);
 
-    // respect hdrDataSpace only when there is modern HDR support
+    // respect hdrDataSpace only when there is no legacy HDR support
     const bool isHdr = hdrDataSpace != Dataspace::UNKNOWN &&
-        display->hasModernHdrSupport(hdrDataSpace);
+        !display->hasLegacyHdrSupport(hdrDataSpace);
     if (isHdr) {
         bestDataSpace = hdrDataSpace;
     }