LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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hwc : Add support for ABC in MDP3

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In display list if one layer has same parameters
as framebuffer on index '0'. Use this layer
as FB and blit other layer(s) on top of it.

Change-Id: If38712781f24a2e27686d2b370643f51a9b05358
This commit is contained in:
Ramakant Singh
2014-04-16 11:09:40 +05:30
committed by Sravan Kumar D.V.N
parent 0def28c653
commit 467759fb28
3 changed files with 53 additions and 16 deletions
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23
libhwcomposer/hwc_utils.cpp
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@@ -1333,7 +1333,15 @@ int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
list->hwLayers[i].acquireFenceFd >= 0) {
if(UNLIKELY(swapzero))
acquireFd[count++] = -1;
else
// if ABC is enabled for more than one layer.
// renderBufIndexforABC will work as FB.Hence
// set the acquireFD from fd - which is coming from copybit
else if(fd >= 0 && (isAbcInUse(ctx) == true)) {
if(ctx->listStats[dpy].renderBufIndexforABC ==(int32_t)i)
acquireFd[count++] = fd;
else
continue;
} else
acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
}
if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
@@ -1386,10 +1394,15 @@ int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
#ifdef QCOM_BSP
//If rotator has not already populated this field
// & if it's a not VPU layer
if((list->hwLayers[i].compositionType == HWC_BLIT)&&
(isAbcInUse(ctx) == false)){
//For Blit, the app layers should be released when the Blit is
//complete. This fd was passed from copybit->draw
// if ABC is enabled for more than one layer
if(fd >= 0 && (isAbcInUse(ctx) == true) &&
ctx->listStats[dpy].renderBufIndexforABC !=(int32_t)i){
list->hwLayers[i].releaseFenceFd = dup(fd);
} else if((list->hwLayers[i].compositionType == HWC_BLIT)&&
(isAbcInUse(ctx) == false)){
//For Blit, the app layers should be released when the Blit
//is complete. This fd was passed from copybit->draw
list->hwLayers[i].releaseFenceFd = dup(fd);
} else
#endif