libhwc2.1: enable smooth display compensation

1. Update displaycolor the scene changes during presentDisplay.
2. early wakeup DPU if frame compensation is needed.

Bug: 187763532
Change-Id: I70793641bed2bf17a809b676d22c02f10b596dec

1 files changed, 25 insertions, 2 deletions

diff --git a/include/displaycolor/displaycolor.h b/include/displaycolor/displaycolor.h
index e8020f3..b439e71 100644
--- a/include/displaycolor/displaycolor.h
+++ b/include/displaycolor/displaycolor.h
@@ -177,7 +177,8 @@ struct DisplayScene {
                force_hdr == rhs.force_hdr &&
                bm == rhs.bm &&
                lhbm_on == rhs.lhbm_on &&
-               (lhbm_on && dbv == rhs.dbv);
+               (lhbm_on && dbv == rhs.dbv) &&
+               refresh_rate == rhs.refresh_rate;
     }
 
     /// A vector of layer color data.
@@ -209,6 +210,9 @@ struct DisplayScene {
 
     /// lhbm status
     bool lhbm_on;
+
+    /// refresh rate
+    float refresh_rate;
 };
 
 /// An interface specifying functions that are HW-agnostic.
@@ -247,7 +251,7 @@ class IDisplayColorGeneric {
 
     /**
      * @brief Update display color data. This function is expected to be called
-     * before querying display color data, if the display scene has changed.
+     * in the context of HWC::validateDisplay, if the display scene has changed.
      *
      * @param display The display relating to the scene.
      * @param scene Display scene data to use during the update.
@@ -256,6 +260,25 @@ class IDisplayColorGeneric {
     virtual int Update(DisplayType display, const DisplayScene &scene) = 0;
 
     /**
+     * @brief Update display color data. This function is expected to be called
+     * in the context of HWC::presentDisplay, if the display scene has changed
+     * since the Update call for HWC::validateDisplay.
+     *
+     * @param display The display relating to the scene.
+     * @param scene Display scene data to use during the update.
+     * @return OK if successful, error otherwise.
+     */
+    virtual int UpdatePresent(DisplayType display, const DisplayScene &scene) = 0;
+
+    /**
+     * @brief Check if refresh rate regamma compensation is enabled.
+     *
+     * @param refresh_rate The new refresh rate will apply.
+     * @return true for yes.
+     */
+    virtual bool IsRrCompensationEnabled(DisplayType display, float refresh_rate) = 0;
+
+    /**
      * @brief Get a map of supported ColorModes, and supported RenderIntents for
      * each ColorMode.
      * @param display The display to get the color modes and render intents.