diff options
Diffstat (limited to 'services/surfaceflinger/DisplayHardware')
| -rw-r--r-- | services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp index 29e9d40..0d6cbb4 100644 --- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp +++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp @@ -22,6 +22,8 @@ namespace android { // --------------------------------------------------------------------------- +static bool sForceHwcCopy = FORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS; + #define VDS_LOGE(msg, ...) ALOGE("[%s] "msg, \ mDisplayName.string(), ##__VA_ARGS__) #define VDS_LOGW_IF(cond, msg, ...) ALOGW_IF(cond, "[%s] "msg, \ @@ -96,6 +98,18 @@ status_t VirtualDisplaySurface::prepareFrame(CompositionType compositionType) { mDbgState = DBG_STATE_PREPARED; mCompositionType = compositionType; + if (sForceHwcCopy && mCompositionType == COMPOSITION_GLES) { + // Some hardware can do RGB->YUV conversion more efficiently in hardware + // controlled by HWC than in hardware controlled by the video encoder. + // Forcing GLES-composed frames to go through an extra copy by the HWC + // allows the format conversion to happen there, rather than passing RGB + // directly to the consumer. + // + // On the other hand, when the consumer prefers RGB or can consume RGB + // inexpensively, this forces an unnecessary copy. + mCompositionType = COMPOSITION_MIXED; + } + if (mCompositionType != mDbgLastCompositionType) { VDS_LOGV("prepareFrame: composition type changed to %s", dbgCompositionTypeStr(mCompositionType)); |