HWComposer::HWComposer(
const sp<SurfaceFlinger>& flinger,
EventHandler& handler,
nsecs_t refreshPeriod)
: mFlinger(flinger),
mModule(0), mHwc(0), mList(0), mCapacity(0),
mNumOVLayers(0), mNumFBLayers(0),
mDpy(EGL_NO_DISPLAY), mSur(EGL_NO_SURFACE),
mEventHandler(handler),
mRefreshPeriod(refreshPeriod),
mVSyncCount(0), mDebugForceFakeVSync(false)
{
#ifdef OMAP_ENHANCEMENT
mListExt = NULL;
#endif
char value[PROPERTY_VALUE_MAX];
property_get("debug.sf.no_hw_vsync", value, "0");
mDebugForceFakeVSync = atoi(value);
bool needVSyncThread = false;
int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &mModule);
ALOGW_IF(err, "%s module not found", HWC_HARDWARE_MODULE_ID);
if (err == 0) {
err = hwc_open(mModule, &mHwc);
ALOGE_IF(err, "%s device failed to initialize (%s)",
HWC_HARDWARE_COMPOSER, strerror(-err));
if (err == 0) {
if (mHwc->registerProcs) {
mCBContext.hwc = this;
mCBContext.procs.invalidate = &hook_invalidate;
mCBContext.procs.vsync = &hook_vsync;
#ifdef OMAP_ENHANCEMENT
mCBContext.procs.extension_cb = &hook_extension_cb;
#endif
mHwc->registerProcs(mHwc, &mCBContext.procs);
memset(mCBContext.procs.zero, 0, sizeof(mCBContext.procs.zero));
}
if (mHwc->common.version >= HWC_DEVICE_API_VERSION_0_3) {
if (mDebugForceFakeVSync) {
// make sure to turn h/w vsync off in "fake vsync" mode
mHwc->methods->eventControl(mHwc, HWC_EVENT_VSYNC, 0);
}
} else {
needVSyncThread = true;
}
}
} else {
needVSyncThread = true;
}
if (needVSyncThread) {
// we don't have VSYNC support, we need to fake it
mVSyncThread = new VSyncThread(*this);
}
}
HWComposer::HWComposer(const sp<SurfaceFlinger>& flinger)
: mFlinger(flinger),
mModule(0), mHwc(0), mList(0), mCapacity(0),
mNumOVLayers(0), mNumFBLayers(0),
mDpy(EGL_NO_DISPLAY), mSur(EGL_NO_SURFACE)
{
int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &mModule);
ALOGW_IF(err, "%s module not found", HWC_HARDWARE_MODULE_ID);
if (err == 0) {
err = hwc_open(mModule, &mHwc);
ALOGE_IF(err, "%s device failed to initialize (%s)",
HWC_HARDWARE_COMPOSER, strerror(-err));
if (err == 0) {
if (mHwc->registerProcs) {
mCBContext.hwc = this;
mCBContext.procs.invalidate = &hook_invalidate;
mHwc->registerProcs(mHwc, &mCBContext.procs);
}
}
}
}
int HWComposer::init() {
int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &mModule);
LOGW_IF(err, "%s module not found", HWC_HARDWARE_MODULE_ID);
if (err)
return err;
err = hwc_open(mModule, &mHwc);
LOGE_IF(err, "%s device failed to initialize (%s)",
HWC_HARDWARE_COMPOSER, strerror(-err));
if (err) {
mHwc = NULL;
return err;
}
if (mHwc->registerProcs) {
mCBContext.hwc = this;
mHwc->registerProcs(mHwc, &mCBContext.procs);
}
return 0;
}