LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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hwc: Add DMA pipe support in MDP composition.

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This change adds support to MDP composition to use DMA pipes when
layer scaling is not needed. Also makes sure not to invoke
MDP rotator when DMA pipes are configured since MDP rotator will
expect both the DMA pipes to available for performing rotation.
In such cases, we let the first frame of rotated video frame to
fall back to FB.

Change-Id: I3c3697dd2713ce9b86ba1e23192ec5841abd25ec
This commit is contained in:
Jeykumar Sankaran
2013-03-06 18:59:28 -08:00
parent 09a30f3423
commit a37fdbf2ab
6 changed files with 34 additions and 10 deletions
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5
libhwcomposer/hwc_utils.cpp
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@@ -299,7 +299,6 @@ void setListStats(hwc_context_t *ctx,
ctx->listStats[dpy].skipCount = 0;
ctx->listStats[dpy].needsAlphaScale = false;
ctx->listStats[dpy].yuvCount = 0;
ctx->mDMAInUse = false;
for (size_t i = 0; i < list->numHwLayers; i++) {
hwc_layer_1_t const* layer = &list->hwLayers[i];
@@ -318,8 +317,8 @@ void setListStats(hwc_context_t *ctx,
ctx->listStats[dpy].yuvIndices[yuvCount] = i;
yuvCount++;
if((layer->transform & HWC_TRANSFORM_ROT_90) && !ctx->mDMAInUse)
ctx->mDMAInUse = true;
if(layer->transform & HWC_TRANSFORM_ROT_90)
ctx->mNeedsRotator = true;
}
if(!ctx->listStats[dpy].needsAlphaScale)