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libhwcomposer: Check for downscaling with alpha

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RGB pipe doesnot support downscaling with alpha on targets
with MDP 4.1 and less. Abort bypass for those targets if the
layer requires downscaling with alpha

Change-Id: I3450968458977626dfc90a9f35da593f08ced93c
This commit is contained in:
Raj kamal 2012-09-24 15:36:17 +05:30 committed by andrew.boren
parent e09a5d04db
commit 6d678fb683
1 changed files with 7 additions and 1 deletions
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8
libhwcomposer/hwc_mdpcomp.cpp
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@ -17,6 +17,7 @@
*/
#include <cutils/properties.h>
#include <mdp_version.h>
#include "hwc_mdpcomp.h"
#include "hwc_qbuf.h"
#include "hwc_external.h"
@ -456,7 +457,12 @@ int MDPComp::mark_layers(hwc_layer_list_t* list, layer_mdp_info* layer_info,
if((layer_prop & MDPCOMP_LAYER_DOWNSCALE) &&
(layer_prop & MDPCOMP_LAYER_BLEND)) {
pipe_pref = PIPE_REQ_RGB;
if (qdutils::MDPVersion::getInstance().getMDPVersion() >=
qdutils::MDP_V4_2) {
pipe_pref = PIPE_REQ_RGB;
} else {
return MDPCOMP_ABORT;
}
}
int allocated_pipe = sPipeMgr.req_for_pipe( pipe_pref);