bool OBS::SetScene(CTSTR lpScene)
{
if(bDisableSceneSwitching)
return false;
HWND hwndScenes = GetDlgItem(hwndMain, ID_SCENES);
UINT curSel = (UINT)SendMessage(hwndScenes, LB_GETCURSEL, 0, 0);
//-------------------------
if(curSel != LB_ERR)
{
UINT textLen = (UINT)SendMessage(hwndScenes, LB_GETTEXTLEN, curSel, 0);
String strLBName;
strLBName.SetLength(textLen);
SendMessage(hwndScenes, LB_GETTEXT, curSel, (LPARAM)strLBName.Array());
if(!strLBName.CompareI(lpScene))
{
UINT id = (UINT)SendMessage(hwndScenes, LB_FINDSTRINGEXACT, -1, (LPARAM)lpScene);
if(id == LB_ERR)
return false;
SendMessage(hwndScenes, LB_SETCURSEL, id, 0);
}
}
else
{
UINT id = (UINT)SendMessage(hwndScenes, LB_FINDSTRINGEXACT, -1, (LPARAM)lpScene);
if(id == LB_ERR)
return false;
SendMessage(hwndScenes, LB_SETCURSEL, id, 0);
}
//-------------------------
XElement *scenes = scenesConfig.GetElement(TEXT("scenes"));
XElement *newSceneElement = scenes->GetElement(lpScene);
if(!newSceneElement)
return false;
if(sceneElement == newSceneElement)
return true;
sceneElement = newSceneElement;
CTSTR lpClass = sceneElement->GetString(TEXT("class"));
if(!lpClass)
{
AppWarning(TEXT("OBS::SetScene: no class found for scene '%s'"), newSceneElement->GetName());
return false;
}
DWORD sceneChangeStartTime;
if(bRunning)
{
Log(TEXT("++++++++++++++++++++++++++++++++++++++++++++++++++++++"));
Log(TEXT(" New Scene"));
sceneChangeStartTime = OSGetTime();
}
XElement *sceneData = newSceneElement->GetElement(TEXT("data"));
//-------------------------
Scene *newScene = NULL;
if(bRunning)
newScene = CreateScene(lpClass, sceneData);
//-------------------------
HWND hwndSources = GetDlgItem(hwndMain, ID_SOURCES);
SendMessage(hwndSources, WM_SETREDRAW, (WPARAM)FALSE, (LPARAM) 0);
App->scaleItem = NULL;
bChangingSources = true;
ListView_DeleteAllItems(hwndSources);
bool bSkipTransition = false;
XElement *sources = sceneElement->GetElement(TEXT("sources"));
if(sources)
{
UINT numSources = sources->NumElements();
ListView_SetItemCount(hwndSources, numSources);
for(UINT i=0; i<numSources; i++)
{
XElement *sourceElement = sources->GetElementByID(i);
String className = sourceElement->GetString(TEXT("class"));
if(className == "DeviceCapture") {
// There's a capture device in the next scene that isn't a global source,
// so let's skip the transition since it won't work anyway.
bSkipTransition = true;
}
}
for(UINT i=0; i<numSources; i++)
{
XElement *sourceElement = sources->GetElementByID(i);
bool render = sourceElement->GetInt(TEXT("render"), 1) > 0;
InsertSourceItem(i, (LPWSTR)sourceElement->GetName(), render);
// Do not add image sources yet in case we're skipping the transition.
// This fixes the issue where capture devices sources that used the
// same device as one in the previous scene would just go blank
// after switching.
if(bRunning && newScene && !bSkipTransition)
newScene->AddImageSource(sourceElement);
}
}
bChangingSources = false;
SendMessage(hwndSources, WM_SETREDRAW, (WPARAM)TRUE, (LPARAM) 0);
RedrawWindow(hwndSources, NULL, NULL, RDW_ERASE | RDW_FRAME | RDW_INVALIDATE | RDW_ALLCHILDREN);
if(scene && newScene && newScene->HasMissingSources())
MessageBox(hwndMain, Str("Scene.MissingSources"), NULL, 0);
if(bRunning)
{
//todo: cache scenes maybe? undecided. not really as necessary with global sources
OSEnterMutex(hSceneMutex);
UINT numSources;
if (scene)
{
//shutdown previous scene, if any
numSources = scene->sceneItems.Num();
for(UINT i=0; i<numSources; i++)
{
XElement *source = scene->sceneItems[i]->GetElement();
String className = source->GetString(TEXT("class"));
if(scene->sceneItems[i]->bRender && className == "GlobalSource") {
XElement *globalSourceData = source->GetElement(TEXT("data"));
String globalSourceName = globalSourceData->GetString(TEXT("name"));
if(App->GetGlobalSource(globalSourceName) != NULL) {
App->GetGlobalSource(globalSourceName)->GlobalSourceLeaveScene();
}
}
}
scene->EndScene();
}
Scene *previousScene = scene;
scene = newScene;
if(newScene && bSkipTransition) {
// If we're skipping the transition because of a non-global
// DirectShow device, delete the scene here and add the
// ImageSources at this point instead.
delete previousScene;
if(sources)
{
UINT numSources = sources->NumElements();
for(UINT i=0; i<numSources; i++)
{
XElement *sourceElement = sources->GetElementByID(i);
if(newScene)
newScene->AddImageSource(sourceElement);
}
}
}
scene->BeginScene();
numSources = scene->sceneItems.Num();
for(UINT i=0; i<numSources; i++)
{
XElement *source = scene->sceneItems[i]->GetElement();
String className = source->GetString(TEXT("class"));
if(scene->sceneItems[i]->bRender && className == "GlobalSource") {
XElement *globalSourceData = source->GetElement(TEXT("data"));
String globalSourceName = globalSourceData->GetString(TEXT("name"));
if(App->GetGlobalSource(globalSourceName) != NULL) {
App->GetGlobalSource(globalSourceName)->GlobalSourceEnterScene();
}
}
}
if(!bTransitioning && !bSkipTransition)
{
bTransitioning = true;
transitionAlpha = 0.0f;
}
OSLeaveMutex(hSceneMutex);
if(!bSkipTransition) {
// Do not delete the previous scene here, since it has already
// been deleted.
delete previousScene;
}
DWORD sceneChangeTime = OSGetTime() - sceneChangeStartTime;
if (sceneChangeTime >= 500)
Log(TEXT("PERFORMANCE WARNING: Scene change took %u ms, maybe some sources should be global sources?"), sceneChangeTime);
}
if(API != NULL)
ReportSwitchScenes(lpScene);
return true;
}
bool OBS::SetScene(CTSTR lpScene)
{
if(bDisableSceneSwitching)
return false;
HWND hwndScenes = GetDlgItem(hwndMain, ID_SCENES);
UINT curSel = (UINT)SendMessage(hwndScenes, LB_GETCURSEL, 0, 0);
//-------------------------
if(curSel != LB_ERR)
{
UINT textLen = (UINT)SendMessage(hwndScenes, LB_GETTEXTLEN, curSel, 0);
String strLBName;
strLBName.SetLength(textLen);
SendMessage(hwndScenes, LB_GETTEXT, curSel, (LPARAM)strLBName.Array());
if(!strLBName.CompareI(lpScene))
{
UINT id = (UINT)SendMessage(hwndScenes, LB_FINDSTRINGEXACT, -1, (LPARAM)lpScene);
if(id == LB_ERR)
return false;
SendMessage(hwndScenes, LB_SETCURSEL, id, 0);
}
}
else
{
UINT id = (UINT)SendMessage(hwndScenes, LB_FINDSTRINGEXACT, -1, (LPARAM)lpScene);
if(id == LB_ERR)
return false;
SendMessage(hwndScenes, LB_SETCURSEL, id, 0);
}
//-------------------------
XElement *scenes = scenesConfig.GetElement(TEXT("scenes"));
XElement *newSceneElement = scenes->GetElement(lpScene);
if(!newSceneElement)
return false;
if(API != NULL)
ReportSwitchScenes(lpScene);
if(sceneElement == newSceneElement)
return true;
sceneElement = newSceneElement;
CTSTR lpClass = sceneElement->GetString(TEXT("class"));
if(!lpClass)
{
AppWarning(TEXT("OBS::SetScene: no class found for scene '%s'"), newSceneElement->GetName());
return false;
}
if(bRunning)
{
Log(TEXT("++++++++++++++++++++++++++++++++++++++++++++++++++++++"));
Log(TEXT(" New Scene"));
}
XElement *sceneData = newSceneElement->GetElement(TEXT("data"));
//-------------------------
Scene *newScene = NULL;
if(bRunning)
newScene = CreateScene(lpClass, sceneData);
//-------------------------
HWND hwndSources = GetDlgItem(hwndMain, ID_SOURCES);
SendMessage(hwndSources, WM_SETREDRAW, (WPARAM)FALSE, (LPARAM) 0);
bChangingSources = true;
ListView_DeleteAllItems(hwndSources);
XElement *sources = sceneElement->GetElement(TEXT("sources"));
if(sources)
{
UINT numSources = sources->NumElements();
ListView_SetItemCount(hwndSources, numSources);
for(UINT i=0; i<numSources; i++)
{
XElement *sourceElement = sources->GetElementByID(i);
bool render = sourceElement->GetInt(TEXT("render"), 1) > 0;
InsertSourceItem(i, (LPWSTR)sourceElement->GetName(), render);
if(bRunning && newScene)
newScene->AddImageSource(sourceElement);
}
}
bChangingSources = false;
SendMessage(hwndSources, WM_SETREDRAW, (WPARAM)TRUE, (LPARAM) 0);
RedrawWindow(hwndSources, NULL, NULL, RDW_ERASE | RDW_FRAME | RDW_INVALIDATE | RDW_ALLCHILDREN);
if(scene && newScene->HasMissingSources())
MessageBox(hwndMain, Str("Scene.MissingSources"), NULL, 0);
if(bRunning)
{
//todo: cache scenes maybe? undecided. not really as necessary with global sources
OSEnterMutex(hSceneMutex);
if(scene)
scene->EndScene();
Scene *previousScene = scene;
scene = newScene;
scene->BeginScene();
if(!bTransitioning)
{
bTransitioning = true;
transitionAlpha = 0.0f;
}
OSLeaveMutex(hSceneMutex);
delete previousScene;
}
return true;
}