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Commit 88a905b9 authored by Madhuri Athota's avatar Madhuri Athota Committed by Matthew Bouyack
Browse files

SurfaceFlinger: Change to support client target flip 



- Add support to flip framebuffer target if
  HWC2 implementation requests for it.

b/38114488
b/68271386
CRs-Fixed: 2057401
Change-Id: I91422ef60a139cbaf491db219b216cd1252e7e63
Signed-off-by: default avatarMadhuri Athota <mathota@codeaurora.org>
parent 7f96780b

services/surfaceflinger/DisplayDevice.cpp

+1 −1
Original line number Diff line number Diff line
@@ -217,7 +217,7 @@ status_t DisplayDevice::prepareFrame(HWComposer& hwc) { 
}



void DisplayDevice::swapBuffers(HWComposer& hwc) const {

    if (hwc.hasClientComposition(mHwcDisplayId)) {

    if (hwc.hasClientComposition(mHwcDisplayId) || hwc.hasFlipClientTargetRequest(mHwcDisplayId)) {

        mSurface.swapBuffers();

    }

services/surfaceflinger/DisplayHardware/HWComposer.cpp

+14 −0
Original line number Diff line number Diff line
@@ -565,6 +565,20 @@ bool HWComposer::hasDeviceComposition(int32_t displayId) const { 
    return mDisplayData[displayId].hasDeviceComposition;

}



bool HWComposer::hasFlipClientTargetRequest(int32_t displayId) const {

    if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {

        // Displays without a corresponding HWC display are never composed by

        // the device

        return false;

    }

    if (!isValidDisplay(displayId)) {

        ALOGE("hasFlipClientTargetRequest: Invalid display %d", displayId);

        return false;

    }

    return ((static_cast<uint32_t>(mDisplayData[displayId].displayRequests) &

             static_cast<uint32_t>(HWC2::DisplayRequest::FlipClientTarget)) != 0);

}



bool HWComposer::hasClientComposition(int32_t displayId) const {

    if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {

        // Displays without a corresponding HWC display are always composed by

services/surfaceflinger/DisplayHardware/HWComposer.h

+3 −0
Original line number Diff line number Diff line
@@ -108,6 +108,9 @@ public: 
    // does this display have layers handled by HWC

    bool hasDeviceComposition(int32_t displayId) const;



    // does this display have pending request to flip client target

    bool hasFlipClientTargetRequest(int32_t displayId) const;



    // does this display have layers handled by GLES

    bool hasClientComposition(int32_t displayId) const;