commit a2978452bd37c6e8ff7777b07f652dd4f5cd5905
author Arun Kumar K.R <akumarkr@codeaurora.org> Thu Feb 07 01:34:24 2013 -0800
committer Ramkumar Radhakrishnan <ramkumar@codeaurora.org> Sat May 11 18:05:40 2013 -0700
tree 46f1b8e8af10a236c2ec283a8009385b291360b5
parent 330067c2ef5f69648a2e9d3be383f3f4394bcbea

hwc: Add support for EXT_ONLY Layers

If there are any EXTERNAL_ONLY layers present in the list, mark
them as HWC_OVERLAY such that SF does not compose and in hwc_set
post that layer to Ext display, ignore other layers

Change-Id: Ic5db3bfa88295167d23d1fb2be7640c9fc772054

libhwcomposer/hwc_fbupdate.cpp

diff --git a/libhwcomposer/hwc_fbupdate.cpp b/libhwcomposer/hwc_fbupdate.cpp
index 7b34df9..439432e 100644
--- a/libhwcomposer/hwc_fbupdate.cpp
+++ b/libhwcomposer/hwc_fbupdate.cpp
@@ -65,6 +65,12 @@
     bool ret = false;
     hwc_layer_1_t *layer = &list->hwLayers[list->numHwLayers - 1];
     if (LIKELY(ctx->mOverlay)) {
+        int extOnlyLayerIndex = ctx->listStats[mDpy].extOnlyLayerIndex;
+        // ext only layer present..
+        if(extOnlyLayerIndex != -1) {
+            layer = &list->hwLayers[extOnlyLayerIndex];
+            layer->compositionType = HWC_OVERLAY;
+        }
         overlay::Overlay& ov = *(ctx->mOverlay);
         private_handle_t *hnd = (private_handle_t *)layer->handle;
         ovutils::Whf info(hnd->width, hnd->height,
@@ -91,8 +97,13 @@
                                ovutils::ROT_FLAGS_NONE);
         ov.setSource(parg, dest);
 
-        hwc_rect_t sourceCrop;
-        getNonWormholeRegion(list, sourceCrop);
+        hwc_rect_t sourceCrop = layer->sourceCrop;
+        hwc_rect_t displayFrame = layer->displayFrame;
+        if(extOnlyLayerIndex == -1) {
+            getNonWormholeRegion(list, sourceCrop);
+            displayFrame = sourceCrop;
+        }
+
         // x,y,w,h
         ovutils::Dim dcrop(sourceCrop.left, sourceCrop.top,
                            sourceCrop.right - sourceCrop.left,
@@ -104,7 +115,6 @@
             static_cast<ovutils::eTransform>(transform);
         ov.setTransform(orient, dest);
 
-        hwc_rect_t displayFrame = sourceCrop;
         ovutils::Dim dpos(displayFrame.left,
                           displayFrame.top,
                           displayFrame.right - displayFrame.left,
@@ -165,6 +175,12 @@
     bool ret = false;
     hwc_layer_1_t *layer = &list->hwLayers[list->numHwLayers - 1];
     if (LIKELY(ctx->mOverlay)) {
+        int extOnlyLayerIndex = ctx->listStats[mDpy].extOnlyLayerIndex;
+        // ext only layer present..
+        if(extOnlyLayerIndex != -1) {
+            layer = &list->hwLayers[extOnlyLayerIndex];
+            layer->compositionType = HWC_OVERLAY;
+        }
         overlay::Overlay& ov = *(ctx->mOverlay);
         private_handle_t *hnd = (private_handle_t *)layer->handle;
         ovutils::Whf info(hnd->width, hnd->height,
@@ -208,8 +224,12 @@
                                 ovutils::ROT_FLAGS_NONE);
         ov.setSource(pargR, destR);
 
-        hwc_rect_t sourceCrop;
-        getNonWormholeRegion(list, sourceCrop);
+        hwc_rect_t sourceCrop = layer->sourceCrop;
+        hwc_rect_t displayFrame = layer->displayFrame;
+        if(extOnlyLayerIndex == -1) {
+            getNonWormholeRegion(list, sourceCrop);
+            displayFrame = sourceCrop;
+        }
         ovutils::Dim dcropL(sourceCrop.left, sourceCrop.top,
                             (sourceCrop.right - sourceCrop.left) / 2,
                             sourceCrop.bottom - sourceCrop.top);
@@ -227,7 +247,6 @@
         ov.setTransform(orient, destL);
         ov.setTransform(orient, destR);
 
-        hwc_rect_t displayFrame = sourceCrop;
         const int halfWidth = (displayFrame.right - displayFrame.left) / 2;
         const int height = displayFrame.bottom - displayFrame.top;