commit 4070e93e1e17945f9e5b5f69bce5bf78ba852e4d
author Dileep Kumar Reddi <dkumarre@codeaurora.org> Tue Sep 30 09:00:57 2014 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Wed Oct 08 01:08:56 2014 -0700
tree 108222e19831e7ffa2ce0e39c21f91d39706c30d
parent dd9101aec9318c78bb0fbadb28dc4a027ab9847f

hwc: Partial Update for MDP3 targets

Enable partial update for MDP3 targets.
Use computed ROI of mdpcomp in copybit
to avoid composition of layers outside ROI.

Change-Id: I4b23fd48cac814f8c35a3c01253dca8c297036f9

libhwcomposer/hwc_copybit.cpp

diff --git a/libhwcomposer/hwc_copybit.cpp b/libhwcomposer/hwc_copybit.cpp
index 8164fd3..a16ce49 100644
--- a/libhwcomposer/hwc_copybit.cpp
+++ b/libhwcomposer/hwc_copybit.cpp
@@ -96,7 +96,7 @@
         int fbWidth =  ctx->dpyAttr[dpy].xres;
         int fbHeight =  ctx->dpyAttr[dpy].yres;
         unsigned int fbArea = (fbWidth * fbHeight);
-        unsigned int renderArea = getRGBRenderingArea(list);
+        unsigned int renderArea = getRGBRenderingArea(ctx, list);
             ALOGD_IF (DEBUG_COPYBIT, "%s:renderArea %u, fbArea %u",
                                   __FUNCTION__, renderArea, fbArea);
         if (renderArea < (mDynThreshold * fbArea)) {
@@ -112,8 +112,8 @@
     return false;
 }
 
-unsigned int CopyBit::getRGBRenderingArea
-                                    (const hwc_display_contents_1_t *list) {
+unsigned int CopyBit::getRGBRenderingArea (const hwc_context_t *ctx,
+                                     const hwc_display_contents_1_t *list) {
     //Calculates total rendering area for RGB layers
     unsigned int renderArea = 0;
     unsigned int w=0, h=0;
@@ -122,7 +122,7 @@
     for (unsigned int i=0; i<list->numHwLayers -1; i++) {
          private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
          if (hnd) {
-             if (BUFFER_TYPE_UI == hnd->bufferType) {
+             if (BUFFER_TYPE_UI == hnd->bufferType && !ctx->copybitDrop[i]) {
                  getLayerResolution(&list->hwLayers[i], w, h);
                  renderArea += (w*h);
              }
@@ -316,6 +316,9 @@
         for (int i = ctx->listStats[dpy].numAppLayers-1; i >= 0 ; i--) {
             int dst_h, dst_w, src_h, src_w;
             float dx, dy;
+            if(ctx->copybitDrop[i]) {
+                continue;
+            }
             hwc_layer_1_t *layer = (hwc_layer_1_t *) &list->hwLayers[i];
             if (layer->planeAlpha != 0xFF)
                 return true;
@@ -541,6 +544,9 @@
             ALOGD_IF(DEBUG_COPYBIT, "%s: Not Marked for copybit", __FUNCTION__);
             continue;
         }
+        if(ctx->copybitDrop[i]) {
+            continue;
+        }
         //skip non updating layers
         if((mDirtyLayerIndex != -1) && (mDirtyLayerIndex != i) )
             continue;