private static IntPtr SapiCategory(SPVTEXTFRAG sapiFrag, string interpretAs, string format)
{
int num = Array.BinarySearch(_asSayAsFormat, interpretAs);
string value = (num >= 0) ? _asContextFormat[num] : format;
sapiFrag.gcSayAsCategory = GCHandle.Alloc(value, GCHandleType.Pinned);
return(sapiFrag.gcSayAsCategory.AddrOfPinnedObject());
}
private static IntPtr SapiCategory(SPVTEXTFRAG sapiFrag, string interpretAs, string format)
{
int posSayAsFormat = Array.BinarySearch <string>(s_asSayAsFormat, interpretAs);
string sFormat = posSayAsFormat >= 0 ? s_asContextFormat[posSayAsFormat] : format;
sapiFrag.gcSayAsCategory = GCHandle.Alloc(sFormat, GCHandleType.Pinned);
return(sapiFrag.gcSayAsCategory.AddrOfPinnedObject());
}
internal static void FreeTextSegment(ref GCHandle fragment)
{
SPVTEXTFRAG sPVTEXTFRAG = (SPVTEXTFRAG)fragment.Target;
if (sPVTEXTFRAG.gcNext.IsAllocated)
{
FreeTextSegment(ref sPVTEXTFRAG.gcNext);
}
if (sPVTEXTFRAG.gcPhoneme.IsAllocated)
{
sPVTEXTFRAG.gcPhoneme.Free();
}
if (sPVTEXTFRAG.gcSayAsCategory.IsAllocated)
{
sPVTEXTFRAG.gcSayAsCategory.Free();
}
sPVTEXTFRAG.gcText.Free();
fragment.Free();
}
internal static void FreeTextSegment(ref GCHandle fragment)
{
SPVTEXTFRAG sapiFrag = (SPVTEXTFRAG)fragment.Target;
if (sapiFrag.gcNext.IsAllocated)
{
FreeTextSegment(ref sapiFrag.gcNext);
}
// free the references to the optional elements
if (sapiFrag.gcPhoneme.IsAllocated)
{
sapiFrag.gcPhoneme.Free();
}
if (sapiFrag.gcSayAsCategory.IsAllocated)
{
sapiFrag.gcSayAsCategory.Free();
}
// Free the text associated with this fragment
sapiFrag.gcText.Free();
fragment.Free();
}
internal static bool ToSapi(List <TextFragment> ssmlFrags, ref GCHandle sapiFragLast)
{
bool flag = true;
for (int num = ssmlFrags.Count - 1; num >= 0; num--)
{
TextFragment textFragment = ssmlFrags[num];
if (textFragment.State.Action != TtsEngineAction.StartParagraph && textFragment.State.Action != TtsEngineAction.StartSentence)
{
SPVTEXTFRAG sPVTEXTFRAG = new SPVTEXTFRAG();
sPVTEXTFRAG.gcNext = (flag ? default(GCHandle) : sapiFragLast);
sPVTEXTFRAG.pNext = (flag ? IntPtr.Zero : sapiFragLast.AddrOfPinnedObject());
sPVTEXTFRAG.gcText = GCHandle.Alloc(textFragment.TextToSpeak, GCHandleType.Pinned);
sPVTEXTFRAG.pTextStart = sPVTEXTFRAG.gcText.AddrOfPinnedObject();
sPVTEXTFRAG.ulTextSrcOffset = textFragment.TextOffset;
sPVTEXTFRAG.ulTextLen = textFragment.TextLength;
SPVSTATE state = default(SPVSTATE);
FragmentState state2 = textFragment.State;
state.eAction = (SPVACTIONS)state2.Action;
state.LangID = (short)state2.LangId;
state.EmphAdj = ((state2.Emphasis == 1) ? 1 : 0);
if (state2.Prosody != null)
{
state.RateAdj = SapiRate(state2.Prosody.Rate);
state.Volume = SapiVolume(state2.Prosody.Volume);
state.PitchAdj.MiddleAdj = SapiPitch(state2.Prosody.Pitch);
}
else
{
state.Volume = 100;
}
state.ePartOfSpeech = SPPARTOFSPEECH.SPPS_Unknown;
if (state.eAction == SPVACTIONS.SPVA_Silence)
{
state.SilenceMSecs = SapiSilence(state2.Duration, (EmphasisBreak)state2.Emphasis);
}
if (state2.Phoneme != null)
{
state.eAction = SPVACTIONS.SPVA_Pronounce;
sPVTEXTFRAG.gcPhoneme = GCHandle.Alloc(state2.Phoneme, GCHandleType.Pinned);
state.pPhoneIds = sPVTEXTFRAG.gcPhoneme.AddrOfPinnedObject();
}
else
{
sPVTEXTFRAG.gcPhoneme = default(GCHandle);
state.pPhoneIds = IntPtr.Zero;
}
if (state2.SayAs != null)
{
string format = state2.SayAs.Format;
string text;
switch (text = state2.SayAs.InterpretAs)
{
case "spellout":
case "spell-out":
case "characters":
case "letters":
state.eAction = SPVACTIONS.SPVA_SpellOut;
break;
case "time":
case "date":
if (!string.IsNullOrEmpty(format))
{
text = text + ":" + format;
}
state.Context.pCategory = SapiCategory(sPVTEXTFRAG, text, null);
break;
default:
state.Context.pCategory = SapiCategory(sPVTEXTFRAG, text, format);
break;
}
}
sPVTEXTFRAG.State = state;
sapiFragLast = GCHandle.Alloc(sPVTEXTFRAG, GCHandleType.Pinned);
flag = false;
}
}
return(!flag);
}
