/// <summary>
/// convert <see cref="SwfOp.ByteCode.Actions.ActionPushList">push list</see> to sequence of single <see cref="SwfOp.ByteCode.Actions.ActionPush" >push</see> actions
/// </summary>
private void ExplodePushLists(ArrayList actionRecord)
{
for (int i = 0; i < actionRecord.Count; i++)
{
BaseAction a = (BaseAction)actionRecord[i];
// check if action is multiple push
ActionPushList pl = actionRecord[i] as ActionPushList;
if (pl != null)
{
// resolve pushs to single push actions
for (int j = 0; j < pl.Length; j++)
{
ActionPush p = pl[j];
actionRecord.Insert(i + 1 + j, p);
}
actionRecord.RemoveAt(i);
}
// process inner actionblocks
if (a as ActionDefineFunction != null)
{
ActionDefineFunction f = (ActionDefineFunction)a;
ExplodePushLists(f.ActionRecord);
}
if (a as ActionDefineFunction2 != null)
{
ActionDefineFunction2 f = (ActionDefineFunction2)a;
ExplodePushLists(f.ActionRecord);
}
}
}
/// <summary>
/// Collaps sequence of single push actions into one multiple-push action
/// </summary>
private void CollapsPushActions(ArrayList actionRecord)
{
int i = 0;
bool isPush;
while (i < (actionRecord.Count - 1))
{
isPush = actionRecord[i] is ActionPush;
if (isPush)
{
int j = i;
int count = 1;
do
{
i++;
if (i < actionRecord.Count)
{
isPush = (actionRecord[i] is ActionPush);
if (isPush)
{
count++;
}
}
} while ((isPush) && (i < actionRecord.Count));
if (count > 1)
{
ActionPush[] pushList = new ActionPush[count];
actionRecord.CopyTo(j, pushList, 0, count);
actionRecord.RemoveRange(j, count);
ActionPushList pl = new ActionPushList(pushList);
actionRecord.Insert(j, pl);
i = j + 1;
}
}
else
{
// recursively step through functions inner actions
ActionDefineFunction f = actionRecord[i] as ActionDefineFunction;
if (f != null)
{
CollapsPushActions(f.ActionRecord);
}
// and function2 of course
ActionDefineFunction2 f2 = actionRecord[i] as ActionDefineFunction2;
if (f2 != null)
{
CollapsPushActions(f2.ActionRecord);
}
i++;
}
}
}
/// <summary>
/// Read multiply push action action as <see cref="SwfOp.ByteCode.Actions.ActionPushList">ActionPushList</see> from swf.
/// </summary>
private ActionPushList ReadActionPush(BinaryReader br)
{
// read block length
int len = Convert.ToInt32(br.ReadUInt16());
int i = 0;
ArrayList pushList = new ArrayList();
while (i < len)
{
int pushType = Convert.ToInt32(br.ReadByte());
i++;
object val = new object();
switch (pushType)
{
case 0: string str = BinaryStringRW.ReadString(br);
i += str.Length + 1;
val = str;
break;
case 1: val = (object)br.ReadSingle();
i += 4;
break;
case 2: val = null;
break;
case 3: val = null;
break;
case 4: val = (object)Convert.ToInt32(br.ReadByte());
i++;
break;
case 5: val = (object )br.ReadBoolean();
i++;
break;
case 6: byte[] b0 = br.ReadBytes(4);
byte[] b1 = br.ReadBytes(4);
byte[] b = new byte[8];
b0.CopyTo(b, 4);
b1.CopyTo(b, 0);
val = (object)BitConverter.ToDouble(b, 0);
i += 8;
break;
case 7: val = (object)br.ReadInt32();
i += 4;
break;
case 8: val = (object)Convert.ToInt32(br.ReadByte());
i++;
break;
case 9: val = (object)Convert.ToInt32(br.ReadUInt16());
i += 2;
break;
}
ActionPush p = new ActionPush(pushType, val);
pushList.Add(p);
}
ActionPush[] pList = new ActionPush[pushList.Count];
pushList.CopyTo(pList, 0);
ActionPushList a = new ActionPushList(pList);
//a.ByteSize = len+3;
return(a);
}
