private Push decodePush(int offset, int end, ActionFactory factory)
{
Push p;
do
{
int pushType = reader.readUI8();
switch (pushType)
{
case Flash.Swf.ActionConstants.kPushStringType: // string
p = ActionFactory.createPush(reader.readString());
break;
case Flash.Swf.ActionConstants.kPushFloatType: // float
byte[] floatBytes = new byte[4];
reader.read(floatBytes, 0, 4);
p = ActionFactory.createPush(BitConverter.ToSingle(floatBytes, 0)); // value
break;
case Flash.Swf.ActionConstants.kPushNullType: // null
p = ActionFactory.createPushNull();
break;
case Flash.Swf.ActionConstants.kPushUndefinedType: // undefined
p = ActionFactory.createPushUndefined();
break;
case Flash.Swf.ActionConstants.kPushRegisterType: // register
p = ActionFactory.createPushRegister(reader.readUI8());
break;
case Flash.Swf.ActionConstants.kPushBooleanType: // boolean
p = ActionFactory.createPush(reader.readUI8() != 0);
break;
case Flash.Swf.ActionConstants.kPushDoubleType: // double
// read two 32 bit little-endian values in big-endian order. weird.
byte[] doubleBytes = new byte[8];
reader.read(doubleBytes, 4, 4);
reader.read(doubleBytes, 0, 4);
p = ActionFactory.createPush(BitConverter.ToDouble(doubleBytes, 0));
break;
case Flash.Swf.ActionConstants.kPushIntegerType: // integer
p = ActionFactory.createPush((int) reader.readUI32());
break;
case Flash.Swf.ActionConstants.kPushConstant8Type: // 8-bit cpool reference
p = ActionFactory.createPushCpool(reader.readUI8());
break;
case Flash.Swf.ActionConstants.kPushConstant16Type: // 16-bit cpool reference
p = ActionFactory.createPushCpool(reader.readUI16());
break;
default:
throw new SwfFormatException("Unknown push data type " + pushType);
}
factory.setAction(offset, p);
offset = reader.Offset;
}
while (offset < end);
return p;
}
private Push decodePush(int offset, int end, ActionFactory factory)
{
Push p;
do
{
int pushType = reader.readUI8();
switch (pushType)
{
case Flash.Swf.ActionConstants.kPushStringType: // string
p = ActionFactory.createPush(reader.readString());
break;
case Flash.Swf.ActionConstants.kPushFloatType: // float
byte[] floatBytes = new byte[4];
reader.read(floatBytes, 0, 4);
p = ActionFactory.createPush(BitConverter.ToSingle(floatBytes, 0)); // value
break;
case Flash.Swf.ActionConstants.kPushNullType: // null
p = ActionFactory.createPushNull();
break;
case Flash.Swf.ActionConstants.kPushUndefinedType: // undefined
p = ActionFactory.createPushUndefined();
break;
case Flash.Swf.ActionConstants.kPushRegisterType: // register
p = ActionFactory.createPushRegister(reader.readUI8());
break;
case Flash.Swf.ActionConstants.kPushBooleanType: // boolean
p = ActionFactory.createPush(reader.readUI8() != 0);
break;
case Flash.Swf.ActionConstants.kPushDoubleType: // double
// read two 32 bit little-endian values in big-endian order. weird.
byte[] doubleBytes = new byte[8];
reader.read(doubleBytes, 4, 4);
reader.read(doubleBytes, 0, 4);
p = ActionFactory.createPush(BitConverter.ToDouble(doubleBytes, 0));
break;
case Flash.Swf.ActionConstants.kPushIntegerType: // integer
p = ActionFactory.createPush((int)reader.readUI32());
break;
case Flash.Swf.ActionConstants.kPushConstant8Type: // 8-bit cpool reference
p = ActionFactory.createPushCpool(reader.readUI8());
break;
case Flash.Swf.ActionConstants.kPushConstant16Type: // 16-bit cpool reference
p = ActionFactory.createPushCpool(reader.readUI16());
break;
default:
throw new SwfFormatException("Unknown push data type " + pushType);
}
factory.setAction(offset, p);
offset = reader.Offset;
}while (offset < end);
return(p);
}
private void decodeAction(int opcode, int offset, ActionFactory factory)
{
LineRecord line = debug != null?debug.getLine(offset):null;
if (line != null)
{
factory.setLine(offset, line);
}
// interleave register records in the action list
RegisterRecord record = (debug != null)?debug.getRegisters(offset):null;
if (record != null)
{
factory.setRegister(offset, record);
}
Action a;
if (opcode < 0x80)
{
a = ActionFactory.createAction(opcode);
factory.setAction(offset, a);
return ;
}
int len = reader.readUI16();
int pos = offset + 3;
switch (opcode)
{
case Flash.Swf.ActionConstants.sactionDefineFunction:
a = decodeDefineFunction(pos, len);
factory.setAction(offset, a);
return ;
case Flash.Swf.ActionConstants.sactionDefineFunction2:
a = decodeDefineFunction2(pos, len);
factory.setAction(offset, a);
return ;
case Flash.Swf.ActionConstants.sactionWith:
a = decodeWith(factory);
break;
case Flash.Swf.ActionConstants.sactionTry:
a = decodeTry(factory);
break;
case Flash.Swf.ActionConstants.sactionPush:
Push p = decodePush(offset, pos + len, factory);
checkConsumed(pos, len, p);
return ;
case Flash.Swf.ActionConstants.sactionStrictMode:
a = decodeStrictMode();
break;
case Flash.Swf.ActionConstants.sactionCall:
// this actions opcode has the high bit set, but there is no length. considered a permanent bug.
a = ActionFactory.createCall();
break;
case Flash.Swf.ActionConstants.sactionGotoFrame:
a = decodeGotoFrame();
break;
case Flash.Swf.ActionConstants.sactionGetURL:
a = decodeGetURL();
break;
case Flash.Swf.ActionConstants.sactionStoreRegister:
a = decodeStoreRegister();
break;
case Flash.Swf.ActionConstants.sactionConstantPool:
a = decodeConstantPool();
break;
case Flash.Swf.ActionConstants.sactionWaitForFrame:
a = decodeWaitForFrame(opcode, factory);
break;
case Flash.Swf.ActionConstants.sactionSetTarget:
a = decodeSetTarget();
break;
case Flash.Swf.ActionConstants.sactionGotoLabel:
a = decodeGotoLabel();
break;
case Flash.Swf.ActionConstants.sactionWaitForFrame2:
a = decodeWaitForFrame(opcode, factory);
break;
case Flash.Swf.ActionConstants.sactionGetURL2:
a = decodeGetURL2();
break;
case Flash.Swf.ActionConstants.sactionJump:
case Flash.Swf.ActionConstants.sactionIf:
a = decodeBranch(opcode, factory);
break;
case Flash.Swf.ActionConstants.sactionGotoFrame2:
a = decodeGotoFrame2();
break;
default:
a = decodeUnknown(opcode, len);
break;
}
checkConsumed(pos, len, a);
factory.setAction(offset, a);
}
private void decodeAction(int opcode, int offset, ActionFactory factory)
{
LineRecord line = debug != null?debug.getLine(offset) : null;
if (line != null)
{
factory.setLine(offset, line);
}
// interleave register records in the action list
RegisterRecord record = (debug != null)?debug.getRegisters(offset):null;
if (record != null)
{
factory.setRegister(offset, record);
}
Action a;
if (opcode < 0x80)
{
a = ActionFactory.createAction(opcode);
factory.setAction(offset, a);
return;
}
int len = reader.readUI16();
int pos = offset + 3;
switch (opcode)
{
case Flash.Swf.ActionConstants.sactionDefineFunction:
a = decodeDefineFunction(pos, len);
factory.setAction(offset, a);
return;
case Flash.Swf.ActionConstants.sactionDefineFunction2:
a = decodeDefineFunction2(pos, len);
factory.setAction(offset, a);
return;
case Flash.Swf.ActionConstants.sactionWith:
a = decodeWith(factory);
break;
case Flash.Swf.ActionConstants.sactionTry:
a = decodeTry(factory);
break;
case Flash.Swf.ActionConstants.sactionPush:
Push p = decodePush(offset, pos + len, factory);
checkConsumed(pos, len, p);
return;
case Flash.Swf.ActionConstants.sactionStrictMode:
a = decodeStrictMode();
break;
case Flash.Swf.ActionConstants.sactionCall:
// this actions opcode has the high bit set, but there is no length. considered a permanent bug.
a = ActionFactory.createCall();
break;
case Flash.Swf.ActionConstants.sactionGotoFrame:
a = decodeGotoFrame();
break;
case Flash.Swf.ActionConstants.sactionGetURL:
a = decodeGetURL();
break;
case Flash.Swf.ActionConstants.sactionStoreRegister:
a = decodeStoreRegister();
break;
case Flash.Swf.ActionConstants.sactionConstantPool:
a = decodeConstantPool();
break;
case Flash.Swf.ActionConstants.sactionWaitForFrame:
a = decodeWaitForFrame(opcode, factory);
break;
case Flash.Swf.ActionConstants.sactionSetTarget:
a = decodeSetTarget();
break;
case Flash.Swf.ActionConstants.sactionGotoLabel:
a = decodeGotoLabel();
break;
case Flash.Swf.ActionConstants.sactionWaitForFrame2:
a = decodeWaitForFrame(opcode, factory);
break;
case Flash.Swf.ActionConstants.sactionGetURL2:
a = decodeGetURL2();
break;
case Flash.Swf.ActionConstants.sactionJump:
case Flash.Swf.ActionConstants.sactionIf:
a = decodeBranch(opcode, factory);
break;
case Flash.Swf.ActionConstants.sactionGotoFrame2:
a = decodeGotoFrame2();
break;
default:
a = decodeUnknown(opcode, len);
break;
}
checkConsumed(pos, len, a);
factory.setAction(offset, a);
}