hwc: Extend partial frame update for split displays
Extends partial frame update support for split displays by calculating
changing region(ROI) independently for each half of the screen. In case of
only one half updating, display driver shuts down the DSI/MDP mixer control
of the non updating half.
Maintains two ROI's for each display. In case of Non-split
displays, only left ROI is updated.
Change-Id: I8a67fe40aac665a48b6f8a46beffb9f8027851b2
diff --git a/liboverlay/overlay.cpp b/liboverlay/overlay.cpp
index d53b46d..879dde4 100644
--- a/liboverlay/overlay.cpp
+++ b/liboverlay/overlay.cpp
@@ -471,19 +471,24 @@
}
bool Overlay::displayCommit(const int& fd) {
- utils::Dim roi;
- return displayCommit(fd, roi);
+ utils::Dim lRoi, rRoi;
+ return displayCommit(fd, lRoi, rRoi);
}
-bool Overlay::displayCommit(const int& fd, const utils::Dim& roi) {
+bool Overlay::displayCommit(const int& fd, const utils::Dim& lRoi,
+ const utils::Dim& rRoi) {
//Commit
struct mdp_display_commit info;
memset(&info, 0, sizeof(struct mdp_display_commit));
info.flags = MDP_DISPLAY_COMMIT_OVERLAY;
- info.roi.x = roi.x;
- info.roi.y = roi.y;
- info.roi.w = roi.w;
- info.roi.h = roi.h;
+ info.l_roi.x = lRoi.x;
+ info.l_roi.y = lRoi.y;
+ info.l_roi.w = lRoi.w;
+ info.l_roi.h = lRoi.h;
+ info.r_roi.x = rRoi.x;
+ info.r_roi.y = rRoi.y;
+ info.r_roi.w = rRoi.w;
+ info.r_roi.h = rRoi.h;
if(!mdp_wrapper::displayCommit(fd, info)) {
ALOGE("%s: commit failed", __func__);