ADHOC/replicant-frameworks_native
3
0
Fork 0
Code Issues 6 Pull Requests Releases Wiki Activity

surfaceflinger: call into hardware composer to blank screen

Browse Source 
Call into the new HWC blank operation to blank or unblank the screen.
Legacy systems may have already blanked the screen via early suspend,
and can choose to not implement the blank operation in their hardware
composer implementation.

Change-Id: Ib403c8c0e36367a2cfef3e1d124872fcfeb9e7cb
This commit is contained in:
Colin Cross 2012-07-12 17:56:34 -07:00
parent c5c5a14c06
commit 10fbdb6059
3 changed files with 29 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
services/surfaceflinger/DisplayHardware.cpp
View File

@ -434,6 +434,9 @@ void DisplayHardware::releaseScreen() const
void DisplayHardware::acquireScreen() const
{
if (mHwc->initCheck() == NO_ERROR) {
mHwc->acquire();
}
DisplayHardwareBase::acquireScreen();
}

22
services/surfaceflinger/DisplayHardware/HWComposer.cpp
View File

@ -286,11 +286,33 @@ status_t HWComposer::release() const {
mHwc->methods->eventControl(mHwc, HWC_EVENT_VSYNC, 0);
}
int err = mHwc->set(mHwc, NULL, NULL, NULL);
if (err < 0) {
return (status_t)err;
}
if (hwcHasVersion(mHwc, HWC_DEVICE_API_VERSION_1_0)) {
if (mHwc->methods && mHwc->methods->blank) {
err = mHwc->methods->blank(mHwc, 1);
}
}
return (status_t)err;
}
return NO_ERROR;
}
status_t HWComposer::acquire() const {
if (mHwc) {
if (hwcHasVersion(mHwc, HWC_DEVICE_API_VERSION_1_0)) {
if (mHwc->methods && mHwc->methods->blank) {
int err = mHwc->methods->blank(mHwc, 0);
return (status_t)err;
}
}
}
return NO_ERROR;
}
status_t HWComposer::disable() {
if (mHwc) {
free(mList);

5
services/surfaceflinger/DisplayHardware/HWComposer.h
View File

@ -71,9 +71,12 @@ public:
// commits the list
status_t commit() const;
// release hardware resources
// release hardware resources and blank screen
status_t release() const;
// acquire hardware resources and unblank screen
status_t acquire() const;
// create a work list for numLayers layer. sets HWC_GEOMETRY_CHANGED.
status_t createWorkList(size_t numLayers);