commit 9d20b39e4a262135b97577490634b5b1cf0cac9f
author Ramkumar Radhakrishnan <ramkumar@codeaurora.org> Fri Nov 15 19:32:47 2013 -0800
committer Ramkumar Radhakrishnan <ramkumar@codeaurora.org> Mon Jun 16 12:10:40 2014 -0700
tree 6db54873ea7a9804c1af1a708c22e961bd24d070
parent 3063fca48e68f7627320d6bd4017f9b2c2ca8350

hwc: Rotate RGB layer using MDP Rotator

1. Use MDP rotator to rotate RGB layers which are rendered by software
2. Restrict total number of rotator sessions to 4 for all displays
3. Disable RGB layer rotation for all MDP versions < MDP5

Change-Id: Ie93111082dff9a16b614e9768df5d8ce83ff9e25

libhwcomposer/hwc.cpp

diff --git a/libhwcomposer/hwc.cpp b/libhwcomposer/hwc.cpp
index b2466d0..efa4302 100644
--- a/libhwcomposer/hwc.cpp
+++ b/libhwcomposer/hwc.cpp
@@ -143,11 +143,11 @@
                     hwc_layer_1_t const* layer = &list->hwLayers[layerIndex];
                     private_handle_t *hnd = (private_handle_t *)layer->handle;
 
-                    /* If a video layer requires rotation, set the DMA state
+                    /* If a layer requires rotation, set the DMA state
                      * to BLOCK_MODE */
 
-                    if (UNLIKELY(isYuvBuffer(hnd)) && canUseRotator(ctx, dpy) &&
-                        (layer->transform & HWC_TRANSFORM_ROT_90)) {
+                    if (canUseRotator(ctx, dpy) &&
+                        has90Transform(layer) && isRotationDoable(ctx, hnd)) {
                         if(not ctx->mOverlay->isDMAMultiplexingSupported()) {
                             if(ctx->mOverlay->isPipeTypeAttached(
                                              overlay::utils::OV_MDP_PIPE_DMA))