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hwc: Partial update support for dual DSI panels with source

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split.

1) When source split is enabled, both the panels are calibrated
   in a single coordinate system. So only one ROI is generated
   for the whole panel extending equally from the midpoint and
   populated for the left side.
2) Fixes a bug in mdpcomp where ROI generated for the frame is
   reset when a strategy fails.

Change-Id: I47fa0e827985dd76d06dcbe464ef832cfc57a671
This commit is contained in:
Jeykumar Sankaran
2015-02-26 10:34:35 -08:00
parent 92fff34247
commit f7124b919f
3 changed files with 12 additions and 5 deletions
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6
libhwcomposer/hwc.cpp
View File

@@ -635,7 +635,11 @@ static int hwc_set_primary(hwc_context_t *ctx, hwc_display_contents_1_t* list) {
}
}
int lSplit = getLeftSplit(ctx, dpy);
/* When source split is enabled, right ROI will always be NULL since the
* ROI for the whole panel generated in a single coordinate system will
* be populuated in left ROI. So leave the right ROI untouched */
int lSplit = qdutils::MDPVersion::getInstance().isSrcSplit() ? 0
:getLeftSplit(ctx, dpy);
qhwc::ovutils::Dim lRoi = qhwc::ovutils::Dim(
ctx->listStats[dpy].lRoi.left,
ctx->listStats[dpy].lRoi.top,

3
libhwcomposer/hwc_mdpcomp.cpp
View File

@@ -217,9 +217,6 @@ void MDPComp::reset(hwc_context_t *ctx) {
mCurrentFrame.reset(numLayers);
ctx->mOverlay->clear(mDpy);
ctx->mLayerRotMap[mDpy]->clear();
resetROI(ctx, mDpy);
memset(&mCurrentFrame.drop, 0, sizeof(mCurrentFrame.drop));
mCurrentFrame.dropCount = 0;
}
void MDPComp::reset() {

8
libhwcomposer/hwc_utils.cpp
View File

@@ -2634,7 +2634,13 @@ hwc_rect expandROIFromMidPoint(hwc_rect roi, hwc_rect fullFrame) {
void resetROI(hwc_context_t *ctx, const int dpy) {
const int fbXRes = (int)ctx->dpyAttr[dpy].xres;
const int fbYRes = (int)ctx->dpyAttr[dpy].yres;
if(isDisplaySplit(ctx, dpy)) {
/* When source split is enabled, both the panels are calibrated
* in a single coordinate system. So only one ROI is generated
* for the whole panel extending equally from the midpoint and
* populated for the left side. */
if(!qdutils::MDPVersion::getInstance().isSrcSplit() &&
isDisplaySplit(ctx, dpy)) {
const int lSplit = getLeftSplit(ctx, dpy);
ctx->listStats[dpy].lRoi = (struct hwc_rect){0, 0, lSplit, fbYRes};
ctx->listStats[dpy].rRoi = (struct hwc_rect){lSplit, 0, fbXRes, fbYRes};