diff --git a/common.mk b/common.mk
index 4aa56b2..cfe84be 100644
--- a/common.mk
+++ b/common.mk
@@ -31,12 +31,12 @@
 endif
 
 ifeq ($(call is-board-platform-in-list, msm8974 msm8226 msm8610 apq8084 \
-        mpq8092), true)
+        mpq8092 msm_bronze), true)
     common_flags += -DVENUS_COLOR_FORMAT
     common_flags += -DMDSS_TARGET
 endif
 
-ifeq ($(call is-board-platform-in-list, mpq8092), true)
+ifeq ($(call is-board-platform-in-list, mpq8092 msm_bronze), true)
     #XXX: Replace with check from MDP when available
     common_flags += -DVPU_TARGET
 endif
diff --git a/libexternal/external.cpp b/libexternal/external.cpp
index 609f9c1..045edd8 100644
--- a/libexternal/external.cpp
+++ b/libexternal/external.cpp
@@ -588,7 +588,9 @@
             // if primary resolution is more than the hdmi resolution
             // configure dpy attr to primary resolution and set
             // downscale mode
-            if((priW * priH) > (width * height)) {
+            // Restrict this upto 1080p resolution max
+            if(((priW * priH) > (width * height)) &&
+                 (priW <= qdutils::MAX_DISPLAY_DIM )) {
                 mHwcContext->dpyAttr[HWC_DISPLAY_EXTERNAL].xres = priW;
                 mHwcContext->dpyAttr[HWC_DISPLAY_EXTERNAL].yres = priH;
                 // HDMI is always in landscape, so always assign the higher
diff --git a/libgralloc/alloc_controller.cpp b/libgralloc/alloc_controller.cpp
index 9af45e2..98047e4 100644
--- a/libgralloc/alloc_controller.cpp
+++ b/libgralloc/alloc_controller.cpp
@@ -184,12 +184,6 @@
 IonController::IonController()
 {
     mIonAlloc = new IonAlloc();
-    mUseTZProtection = false;
-    char property[PROPERTY_VALUE_MAX];
-    if ((property_get("persist.gralloc.cp.level3", property, NULL) <= 0) ||
-                            (atoi(property) != 1)) {
-        mUseTZProtection = true;
-    }
 }
 
 int IonController::allocate(alloc_data& data, int usage)
@@ -210,7 +204,7 @@
         ionFlags |= ION_HEAP(ION_IOMMU_HEAP_ID);
 
     if(usage & GRALLOC_USAGE_PROTECTED) {
-        if ((mUseTZProtection) && (usage & GRALLOC_USAGE_PRIVATE_MM_HEAP)) {
+        if (usage & GRALLOC_USAGE_PRIVATE_MM_HEAP) {
             ionFlags |= ION_HEAP(ION_CP_MM_HEAP_ID);
             ionFlags |= ION_SECURE;
         } else {
diff --git a/libgralloc/alloc_controller.h b/libgralloc/alloc_controller.h
index 8954d39..5fe81fa 100644
--- a/libgralloc/alloc_controller.h
+++ b/libgralloc/alloc_controller.h
@@ -65,7 +65,6 @@
 
     private:
     IonAlloc* mIonAlloc;
-    bool mUseTZProtection;
 
 };
 } //end namespace gralloc
diff --git a/libhwcomposer/Android.mk b/libhwcomposer/Android.mk
index 12b822a..4ef4286 100644
--- a/libhwcomposer/Android.mk
+++ b/libhwcomposer/Android.mk
@@ -25,7 +25,7 @@
                                  hwc_dump_layers.cpp \
                                  hwc_ad.cpp
 
-ifeq ($(call is-board-platform-in-list, mpq8092), true)
+ifeq ($(call is-board-platform-in-list, mpq8092 msm_bronze), true)
     LOCAL_SRC_FILES += hwc_vpuclient.cpp
 endif
 
diff --git a/libhwcomposer/hwc.cpp b/libhwcomposer/hwc.cpp
index 5038025..2c255e1 100644
--- a/libhwcomposer/hwc.cpp
+++ b/libhwcomposer/hwc.cpp
@@ -770,6 +770,9 @@
     ovDump[0] = '\0';
     ctx->mRotMgr->getDump(ovDump, 1024);
     dumpsys_log(aBuf, ovDump);
+    ovDump[0] = '\0';
+    Writeback::getInstance()->getDump(ovDump, 1024);
+    dumpsys_log(aBuf, ovDump);
     strlcpy(buff, aBuf.string(), buff_len);
 }
 
diff --git a/libhwcomposer/hwc_copybit.cpp b/libhwcomposer/hwc_copybit.cpp
index ba40db5..912da27 100644
--- a/libhwcomposer/hwc_copybit.cpp
+++ b/libhwcomposer/hwc_copybit.cpp
@@ -246,8 +246,8 @@
         rect.bottom};
 
     copybit_image_t buf;
-    buf.w = ALIGN(hnd->width,32);
-    buf.h = hnd->height;
+    buf.w = ALIGN(getWidth(hnd),32);
+    buf.h = getHeight(hnd);
     buf.format = hnd->format;
     buf.base = (void *)hnd->base;
     buf.handle = (native_handle_t *)hnd;
@@ -347,8 +347,8 @@
 
     // Set the copybit source:
     copybit_image_t src;
-    src.w = hnd->width;
-    src.h = hnd->height;
+    src.w = getWidth(hnd);
+    src.h = getHeight(hnd);
     src.format = hnd->format;
 
     // Handle R/B swap
@@ -362,7 +362,7 @@
 
     src.base = (void *)hnd->base;
     src.handle = (native_handle_t *)layer->handle;
-    src.horiz_padding = src.w - hnd->width;
+    src.horiz_padding = src.w - getWidth(hnd);
     // Initialize vertical padding to zero for now,
     // this needs to change to accomodate vertical stride
     // if needed in the future
diff --git a/libhwcomposer/hwc_dump_layers.cpp b/libhwcomposer/hwc_dump_layers.cpp
index b9c09b6..1b3d097 100644
--- a/libhwcomposer/hwc_dump_layers.cpp
+++ b/libhwcomposer/hwc_dump_layers.cpp
@@ -236,7 +236,7 @@
     // Log Line 1
     ALOGI("Display[%s] Layer[%d] SrcBuff[%dx%d] SrcCrop[%dl, %dt, %dr, %db] "
         "DispFrame[%dl, %dt, %dr, %db] VisRegsScr%s", mDisplayName, layerIndex,
-        (hnd)? hnd->width : -1, (hnd)? hnd->height : -1,
+        (hnd)? getWidth(hnd) : -1, (hnd)? getHeight(hnd) : -1,
         sourceCrop.left, sourceCrop.top,
         sourceCrop.right, sourceCrop.bottom,
         displayFrame.left, displayFrame.top,
@@ -328,7 +328,7 @@
                 break;
         }
         if (SkBitmap::kNo_Config != tempSkBmpConfig) {
-            tempSkBmp->setConfig(tempSkBmpConfig, hnd->width, hnd->height);
+            tempSkBmp->setConfig(tempSkBmpConfig, getWidth(hnd), getHeight(hnd));
             tempSkBmp->setPixels((void*)hnd->base);
             bResult = SkImageEncoder::EncodeFile(dumpFilename,
                                     *tempSkBmp, SkImageEncoder::kPNG_Type, 100);
@@ -348,7 +348,7 @@
         bool bResult = false;
         sprintf(dumpFilename, "%s/sfdump%03d.layer%d.%dx%d.%s.%s.raw",
             mDumpDirRaw, mDumpCntrRaw,
-            layerIndex, hnd->width, hnd->height,
+            layerIndex, getWidth(hnd), getHeight(hnd),
             pixFormatStr, mDisplayName);
         FILE* fp = fopen(dumpFilename, "w+");
         if (NULL != fp) {
diff --git a/libhwcomposer/hwc_fbupdate.cpp b/libhwcomposer/hwc_fbupdate.cpp
index 53b3d18..12177b3 100644
--- a/libhwcomposer/hwc_fbupdate.cpp
+++ b/libhwcomposer/hwc_fbupdate.cpp
@@ -106,7 +106,7 @@
         }
         overlay::Overlay& ov = *(ctx->mOverlay);
         private_handle_t *hnd = (private_handle_t *)layer->handle;
-        ovutils::Whf info(hnd->width, hnd->height,
+        ovutils::Whf info(getWidth(hnd), getHeight(hnd),
                           ovutils::getMdpFormat(hnd->format), hnd->size);
 
         //Request a pipe
@@ -244,7 +244,7 @@
         }
         overlay::Overlay& ov = *(ctx->mOverlay);
         private_handle_t *hnd = (private_handle_t *)layer->handle;
-        ovutils::Whf info(hnd->width, hnd->height,
+        ovutils::Whf info(getWidth(hnd), getHeight(hnd),
                           ovutils::getMdpFormat(hnd->format), hnd->size);
 
         //Request left pipe
diff --git a/libhwcomposer/hwc_mdpcomp.cpp b/libhwcomposer/hwc_mdpcomp.cpp
index aacad00..bb52728 100644
--- a/libhwcomposer/hwc_mdpcomp.cpp
+++ b/libhwcomposer/hwc_mdpcomp.cpp
@@ -586,14 +586,26 @@
 
 bool MDPComp::partialMDPComp(hwc_context_t *ctx, hwc_display_contents_1_t* list)
 {
-    int numAppLayers = ctx->listStats[mDpy].numAppLayers;
-
     if(!sEnableMixedMode) {
         //Mixed mode is disabled. No need to even try caching.
         return false;
     }
 
-    //Setup mCurrentFrame
+    bool ret = false;
+    if(isLoadBasedCompDoable(ctx, list)) {
+        ret = loadBasedComp(ctx, list);
+    }
+
+    if(!ret) {
+        ret = cacheBasedComp(ctx, list);
+    }
+
+    return ret;
+}
+
+bool MDPComp::cacheBasedComp(hwc_context_t *ctx,
+        hwc_display_contents_1_t* list) {
+    int numAppLayers = ctx->listStats[mDpy].numAppLayers;
     mCurrentFrame.reset(numAppLayers);
     updateLayerCache(ctx, list);
 
@@ -643,6 +655,77 @@
     return true;
 }
 
+bool MDPComp::loadBasedComp(hwc_context_t *ctx,
+        hwc_display_contents_1_t* list) {
+    int numAppLayers = ctx->listStats[mDpy].numAppLayers;
+    mCurrentFrame.reset(numAppLayers);
+
+    //TODO BatchSize could be optimized further based on available pipes, split
+    //displays etc.
+    const int batchSize = numAppLayers - (sMaxPipesPerMixer - 1);
+    if(batchSize <= 0) {
+        ALOGD_IF(isDebug(), "%s: Not attempting", __FUNCTION__);
+        return false;
+    }
+
+    int minBatchStart = -1;
+    size_t minBatchPixelCount = SIZE_MAX;
+
+    for(int i = 0; i <= numAppLayers - batchSize; i++) {
+        uint32_t batchPixelCount = 0;
+        for(int j = i; j < i + batchSize; j++) {
+            hwc_layer_1_t* layer = &list->hwLayers[j];
+            hwc_rect_t crop = layer->sourceCrop;
+            batchPixelCount += (crop.right - crop.left) *
+                    (crop.bottom - crop.top);
+        }
+
+        if(batchPixelCount < minBatchPixelCount) {
+            minBatchPixelCount = batchPixelCount;
+            minBatchStart = i;
+        }
+    }
+
+    if(minBatchStart < 0) {
+        ALOGD_IF(isDebug(), "%s: No batch found batchSize %d numAppLayers %d",
+                __FUNCTION__, batchSize, numAppLayers);
+        return false;
+    }
+
+    for(int i = 0; i < numAppLayers; i++) {
+        if(i < minBatchStart || i >= minBatchStart + batchSize) {
+            hwc_layer_1_t* layer = &list->hwLayers[i];
+            if(not isSupportedForMDPComp(ctx, layer)) {
+                ALOGD_IF(isDebug(), "%s: MDP unsupported layer found at %d",
+                        __FUNCTION__, i);
+                return false;
+            }
+            mCurrentFrame.isFBComposed[i] = false;
+        }
+    }
+
+    mCurrentFrame.fbZ = minBatchStart;
+    mCurrentFrame.fbCount = batchSize;
+    mCurrentFrame.mdpCount = mCurrentFrame.layerCount - batchSize;
+
+    if(!arePipesAvailable(ctx, list)) {
+        return false;
+    }
+
+    ALOGD_IF(isDebug(), "%s: fbZ %d batchSize %d",
+                __FUNCTION__, mCurrentFrame.fbZ, batchSize);
+    return true;
+}
+
+bool MDPComp::isLoadBasedCompDoable(hwc_context_t *ctx,
+        hwc_display_contents_1_t* list) {
+    if(mDpy or isSecurePresent(ctx, mDpy) or
+            not (list->flags & HWC_GEOMETRY_CHANGED)) {
+        return false;
+    }
+    return true;
+}
+
 bool MDPComp::isOnlyVideoDoable(hwc_context_t *ctx,
         hwc_display_contents_1_t* list, bool secureOnly) {
     int numAppLayers = ctx->listStats[mDpy].numAppLayers;
diff --git a/libhwcomposer/hwc_mdpcomp.h b/libhwcomposer/hwc_mdpcomp.h
index 4aa21cc..1d5d715 100644
--- a/libhwcomposer/hwc_mdpcomp.h
+++ b/libhwcomposer/hwc_mdpcomp.h
@@ -144,6 +144,13 @@
     bool fullMDPComp(hwc_context_t *ctx, hwc_display_contents_1_t* list);
     /* check if we can use layer cache to do at least partial MDP comp */
     bool partialMDPComp(hwc_context_t *ctx, hwc_display_contents_1_t* list);
+    /* Partial MDP comp that uses caching to save power as primary goal */
+    bool cacheBasedComp(hwc_context_t *ctx, hwc_display_contents_1_t* list);
+    /* Partial MDP comp that uses number of pixels to optimize perf goal */
+    bool loadBasedComp(hwc_context_t *ctx, hwc_display_contents_1_t* list);
+    /* Checks if its worth doing load based partial comp */
+    bool isLoadBasedCompDoable(hwc_context_t *ctx,
+            hwc_display_contents_1_t* list);
     /* checks for conditions where only video can be bypassed */
     bool isOnlyVideoDoable(hwc_context_t *ctx, hwc_display_contents_1_t* list,
             bool secureOnly);
diff --git a/libhwcomposer/hwc_uevents.cpp b/libhwcomposer/hwc_uevents.cpp
index 8c3d00d..8906216 100644
--- a/libhwcomposer/hwc_uevents.cpp
+++ b/libhwcomposer/hwc_uevents.cpp
@@ -141,6 +141,7 @@
                          "event", __FUNCTION__);
                 ctx->proc->hotplug(ctx->proc, HWC_DISPLAY_EXTERNAL,
                                    EXTERNAL_OFFLINE);
+                ctx->mVirtualonExtActive = false;
             }
             break;
         }
@@ -309,7 +310,10 @@
     char thread_name[64] = HWC_UEVENT_THREAD_NAME;
     prctl(PR_SET_NAME, (unsigned long) &thread_name, 0, 0, 0);
     setpriority(PRIO_PROCESS, 0, HAL_PRIORITY_URGENT_DISPLAY);
-    uevent_init();
+    if(!uevent_init()) {
+        ALOGE("%s: failed to init uevent ",__FUNCTION__);
+        return NULL;
+    }
 
     while(1) {
         len = uevent_next_event(udata, sizeof(udata) - 2);
diff --git a/libhwcomposer/hwc_utils.cpp b/libhwcomposer/hwc_utils.cpp
index 7e0ecd8..06d387d 100644
--- a/libhwcomposer/hwc_utils.cpp
+++ b/libhwcomposer/hwc_utils.cpp
@@ -704,6 +704,7 @@
     ctx->listStats[dpy].skipCount = 0;
     ctx->listStats[dpy].needsAlphaScale = false;
     ctx->listStats[dpy].preMultipliedAlpha = false;
+    ctx->listStats[dpy].isSecurePresent = false;
     ctx->listStats[dpy].yuvCount = 0;
     char property[PROPERTY_VALUE_MAX];
     ctx->listStats[dpy].extOnlyLayerIndex = -1;
@@ -733,6 +734,10 @@
         //reset yuv indices
         ctx->listStats[dpy].yuvIndices[i] = -1;
 
+        if (isSecureBuffer(hnd)) {
+            ctx->listStats[dpy].isSecurePresent = true;
+        }
+
         if (isSkipLayer(&list->hwLayers[i])) {
             ctx->listStats[dpy].skipCount++;
         }
@@ -1389,7 +1394,7 @@
     eTransform orient = static_cast<eTransform>(transform);
     int downscale = 0;
     int rotFlags = ovutils::ROT_FLAGS_NONE;
-    Whf whf(hnd->width, hnd->height,
+    Whf whf(getWidth(hnd), getHeight(hnd),
             getMdpFormat(hnd->format), hnd->size);
 
     // Handle R/B swap
@@ -1520,7 +1525,7 @@
     const int downscale = 0;
     int rotFlags = ROT_FLAGS_NONE;
 
-    Whf whf(hnd->width, hnd->height,
+    Whf whf(getWidth(hnd), getHeight(hnd),
             getMdpFormat(hnd->format), hnd->size);
 
     // Handle R/B swap
diff --git a/libhwcomposer/hwc_utils.h b/libhwcomposer/hwc_utils.h
index 3f1aace..d281fb0 100644
--- a/libhwcomposer/hwc_utils.h
+++ b/libhwcomposer/hwc_utils.h
@@ -103,6 +103,7 @@
     bool isDisplayAnimating;
     ovutils::Dim roi;
     bool secureUI; // Secure display layer
+    bool isSecurePresent;
 };
 
 struct LayerProp {
@@ -316,6 +317,26 @@
     return (hnd && (hnd->flags & private_handle_t::PRIV_FLAGS_SECURE_DISPLAY));
 }
 
+static inline int getWidth(const private_handle_t* hnd) {
+    if(isYuvBuffer(hnd)) {
+        MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
+        if(metadata && metadata->operation & UPDATE_BUFFER_GEOMETRY) {
+            return metadata->bufferDim.sliceWidth;
+        }
+    }
+    return hnd->width;
+}
+
+static inline int getHeight(const private_handle_t* hnd) {
+    if(isYuvBuffer(hnd)) {
+        MetaData_t *metadata = (MetaData_t *)hnd->base_metadata;
+        if(metadata && metadata->operation & UPDATE_BUFFER_GEOMETRY) {
+            return metadata->bufferDim.sliceHeight;
+        }
+    }
+    return hnd->height;
+}
+
 template<typename T> inline T max(T a, T b) { return (a > b) ? a : b; }
 template<typename T> inline T min(T a, T b) { return (a < b) ? a : b; }
 
@@ -421,6 +442,10 @@
     return (layer->transform & HWC_TRANSFORM_ROT_90);
 }
 
+inline bool isSecurePresent(hwc_context_t *ctx, int dpy) {
+    return ctx->listStats[dpy].isSecurePresent;
+}
+
 };
 
 #endif //HWC_UTILS_H
diff --git a/liboverlay/overlayMdssRot.cpp b/liboverlay/overlayMdssRot.cpp
index 95f22c6..c6d5332 100644
--- a/liboverlay/overlayMdssRot.cpp
+++ b/liboverlay/overlayMdssRot.cpp
@@ -32,7 +32,6 @@
 #define MDSS_MDP_ROT_ONLY 0x80
 #endif
 
-#define SIZE_1M 0x00100000
 #define MDSS_ROT_MASK (MDP_ROT_90 | MDP_FLIP_UD | MDP_FLIP_LR)
 
 namespace ovutils = overlay::utils;
@@ -261,9 +260,6 @@
         opBufSize = Rotator::calcOutputBufSize(destWhf);
     }
 
-    if (mRotInfo.flags & utils::OV_MDP_SECURE_OVERLAY_SESSION)
-        opBufSize = utils::align(opBufSize, SIZE_1M);
-
     return opBufSize;
 }
 
diff --git a/liboverlay/overlayMem.h b/liboverlay/overlayMem.h
index 061d197..5e0db6f 100644
--- a/liboverlay/overlayMem.h
+++ b/liboverlay/overlayMem.h
@@ -38,6 +38,7 @@
 
 #include "gralloc_priv.h"
 #include "overlayUtils.h"
+#define SIZE_1M 0x00100000
 
 namespace overlay {
 
@@ -118,24 +119,28 @@
 {
     alloc_data data;
     int allocFlags = GRALLOC_USAGE_PRIVATE_IOMMU_HEAP;
-    if(isSecure) {
-        allocFlags = GRALLOC_USAGE_PRIVATE_MM_HEAP;
-        allocFlags |= GRALLOC_USAGE_PROTECTED;
-    }
-    // Allocate uncached rotator buffers
-    allocFlags |= GRALLOC_USAGE_PRIVATE_UNCACHED;
-
     int err = 0;
     OVASSERT(numbufs && bufSz, "numbufs=%d bufSz=%d", numbufs, bufSz);
 
-    mBufSz = bufSz;
+    if(isSecure) {
+        allocFlags = GRALLOC_USAGE_PRIVATE_MM_HEAP;
+        allocFlags |= GRALLOC_USAGE_PROTECTED;
+        mBufSz = utils::align(bufSz, SIZE_1M);
+        data.align = SIZE_1M;
+    } else {
+        mBufSz = bufSz;
+        data.align = getpagesize();
+    }
+
+    // Allocate uncached rotator buffers
+    allocFlags |= GRALLOC_USAGE_PRIVATE_UNCACHED;
+
     mNumBuffers = numbufs;
 
     data.base = 0;
     data.fd = -1;
     data.offset = 0;
     data.size = mBufSz * mNumBuffers;
-    data.align = getpagesize();
     data.uncached = true;
 
     err = mAlloc->allocate(data, allocFlags);
diff --git a/liboverlay/overlayRotator.cpp b/liboverlay/overlayRotator.cpp
index 84a9818..7b3dda1 100644
--- a/liboverlay/overlayRotator.cpp
+++ b/liboverlay/overlayRotator.cpp
@@ -168,8 +168,8 @@
             mRot[i]->getDump(buf, len);
         }
     }
-    char str[32] = {'\0'};
-    snprintf(str, 32, "\n================\n");
+    char str[4] = {'\0'};
+    snprintf(str, 4, "\n");
     strncat(buf, str, strlen(str));
 }
 
diff --git a/liboverlay/overlayUtils.cpp b/liboverlay/overlayUtils.cpp
index fd8bfe2..1377182 100644
--- a/liboverlay/overlayUtils.cpp
+++ b/liboverlay/overlayUtils.cpp
@@ -427,9 +427,8 @@
         const msmfb_data& ov) {
     char str_data[256] = {'\0'};
     snprintf(str_data, 256,
-            "%s offset=%d memid=%d id=%d flags=0x%x priv=%d\n",
-            prefix, ov.offset, ov.memory_id, ov.id, ov.flags,
-            ov.priv);
+            "%s offset=%d memid=%d id=%d flags=0x%x\n",
+            prefix, ov.offset, ov.memory_id, ov.id, ov.flags);
     strncat(buf, str_data, strlen(str_data));
 }
 
diff --git a/liboverlay/overlayWriteback.cpp b/liboverlay/overlayWriteback.cpp
index f1f0eb5..e7d25b0 100644
--- a/liboverlay/overlayWriteback.cpp
+++ b/liboverlay/overlayWriteback.cpp
@@ -37,9 +37,6 @@
 
 //=========== class WritebackMem ==============================================
 bool WritebackMem::manageMem(uint32_t size, bool isSecure) {
-    if(isSecure) {
-        size = utils::align(size, SIZE_1M);
-    }
     if(mBuf.bufSz() == size) {
         return true;
     }
@@ -218,6 +215,13 @@
     return mOpFmt;
 }
 
+void Writeback::getDump(char *buf, size_t len) const {
+    utils::getDump(buf, len, "WBData", mFbData);
+    char str[4] = {'\0'};
+    snprintf(str, 4, "\n");
+    strncat(buf, str, strlen(str));
+}
+
 //static
 
 Writeback *Writeback::getInstance() {
diff --git a/liboverlay/overlayWriteback.h b/liboverlay/overlayWriteback.h
index 8c0c52a..33eb059 100644
--- a/liboverlay/overlayWriteback.h
+++ b/liboverlay/overlayWriteback.h
@@ -87,6 +87,7 @@
     int getFbFd() const { return mFd.getFD(); }
     int getOutputFormat();
     bool setOutputFormat(int mdpFormat);
+    void getDump(char *buf, size_t len) const;
 
     static Writeback* getInstance();
     static void configBegin() { sUsed = false; }
diff --git a/libqdutils/qdMetaData.cpp b/libqdutils/qdMetaData.cpp
index 1316e59..89ca92e 100644
--- a/libqdutils/qdMetaData.cpp
+++ b/libqdutils/qdMetaData.cpp
@@ -78,6 +78,9 @@
         case PP_PARAM_TIMESTAMP:
             data->timestamp = *((int64_t *)param);
             break;
+        case UPDATE_BUFFER_GEOMETRY:
+            memcpy((void *)&data->bufferDim, param, sizeof(BufferDim_t));
+            break;
         default:
             ALOGE("Unknown paramType %d", paramType);
             break;
diff --git a/libqdutils/qdMetaData.h b/libqdutils/qdMetaData.h
index 9f10cf8..d5354a4 100644
--- a/libqdutils/qdMetaData.h
+++ b/libqdutils/qdMetaData.h
@@ -52,9 +52,15 @@
     uint16_t c2[MAX_IGC_LUT_ENTRIES];
 };
 
+struct BufferDim_t {
+    int32_t sliceWidth;
+    int32_t sliceHeight;
+};
+
 struct MetaData_t {
     int32_t operation;
     int32_t interlaced;
+    BufferDim_t bufferDim;
     HSICData_t hsicData;
     int32_t sharpness;
     int32_t video_interface;
@@ -70,7 +76,8 @@
     PP_PARAM_VID_INTFC  = 0x0008,
     PP_PARAM_IGC        = 0x0010,
     PP_PARAM_SHARP2     = 0x0020,
-    PP_PARAM_TIMESTAMP  = 0x0040
+    PP_PARAM_TIMESTAMP  = 0x0040,
+    UPDATE_BUFFER_GEOMETRY = 0x0080,
 } DispParamType;
 
 int setMetaData(private_handle_t *handle, DispParamType paramType, void *param);