liboverlay: Rotator-assisted MDP downscaling of videos.
Engage the rotator to assist MDP in performing video downscale for
primary and external. This saves bandwidth and avoids causing the
driver to make too many panel mode switches between BLT (writeback)
and non-BLT (direct) modes.
Change-Id: Icfabc2c0f978a23cf96c78a9976cf69cea697b5f
CRs-Fixed: 434852
diff --git a/liboverlay/overlayMdpRot.cpp b/liboverlay/overlayMdpRot.cpp
index f96ddb7..5052bc8 100644
--- a/liboverlay/overlayMdpRot.cpp
+++ b/liboverlay/overlayMdpRot.cpp
@@ -53,6 +53,20 @@
mRotDataInfo.src.flags |= MDP_MEMORY_ID_TYPE_FB;
}
+void MdpRot::setDownscale(int ds) {
+ if (mRotImgInfo.src.format == MDP_Y_CR_CB_GH2V2 &&
+ (mRotImgInfo.src_rect.h & 0xF)) {
+ mRotImgInfo.src_rect.h = utils::aligndown(mRotImgInfo.src_rect.h, 16);
+ } else if ((utils::ROT_DS_EIGHTH == ds) && (mRotImgInfo.src_rect.h & 0xF)) {
+ // Ensure src_rect.h is a multiple of 16 for 1/8 downscaling.
+ // This is an undocumented MDP Rotator constraint.
+ // Note that src_rect.h is already ensured to be 32 pixel height aligned
+ // for MDP_Y_CRCB_H2V2_TILE and MDP_Y_CBCR_H2V2_TILE formats.
+ mRotImgInfo.src_rect.h = utils::alignup(mRotImgInfo.src_rect.h, 16);
+ }
+ mRotImgInfo.downscale_ratio = ds;
+}
+
void MdpRot::save() {
mLSRotImgInfo = mRotImgInfo;
}
@@ -103,7 +117,7 @@
mRotImgInfo.secure = 1;
}
-void MdpRot::setTransform(const utils::eTransform& rot, const bool& rotUsed)
+void MdpRot::setTransform(const utils::eTransform& rot)
{
int r = utils::getMdpOrient(rot);
setRotations(r);
@@ -111,7 +125,9 @@
//Clients in Android dont factor in 90 rotation while deciding the flip.
mOrientation = static_cast<utils::eTransform>(r);
ALOGE_IF(DEBUG_OVERLAY, "%s: r=%d", __FUNCTION__, r);
+}
+void MdpRot::setRotatorUsed(const bool& rotUsed) {
setDisable();
if(rotUsed) {
setEnable();