public void FlushBitsTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(true);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(false);
writer.WriteBit(false);
writer.WriteBit(false);
writer.FlushBits();
mem.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(0xaa, mem.ReadByte(), "Byte 0");
Assert.AreEqual(0xc0, mem.ReadByte(), "Byte 1");
Assert.AreEqual(mem.Length, mem.Position, "Should reach end of the stream");
}
protected void WriteBits(Stream stream, params string[] bits)
{
var writer = new SwfStreamWriter(stream);
foreach (var bitString in bits)
{
foreach (var ch in bitString)
{
switch (ch)
{
case '0':
writer.WriteBit(false);
break;
case '1':
writer.WriteBit(true);
break;
case '.':
break;
default:
throw new InvalidOperationException("Invalid character " + ch);
}
}
}
writer.FlushBits();
stream.Seek(0, SeekOrigin.Begin);
}
public void FlushBitsTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(true);
writer.WriteBit(true);
writer.WriteBit(false);
writer.WriteBit(false);
writer.WriteBit(false);
writer.WriteBit(false);
writer.FlushBits();
mem.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(0xaa, mem.ReadByte(), "Byte 0");
Assert.AreEqual(0xc0, mem.ReadByte(), "Byte 1");
Assert.AreEqual(mem.Length, mem.Position, "Should reach end of the stream");
}
public void WriteNegativeFixedPoint16FromBitsTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
var bits = new SignedBitsCount(-81920).GetBits();
writer.WriteFixedPoint16(-1.25, bits);
writer.FlushBits();
mem.Seek(0, SeekOrigin.Begin);
var reader = new SwfStreamReader(mem);
int actual = reader.ReadSignedBits(bits);
Assert.AreEqual(-81920, actual);
}
public void ReadNegativeFixedPoint16FromBitsTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
const int val = -81920;
var bits = new SignedBitsCount(val).GetBits();
writer.WriteSignedBits(val, bits);
writer.FlushBits();
mem.Seek(0, SeekOrigin.Begin);
var reader = new SwfStreamReader(mem);
double actual = reader.ReadFixedPoint16(bits);
Assert.AreEqual(-1.25, actual);
}
public void WriteRectTest2()
{
var rect = new SwfRect {
XMin = 0x004,
XMax = 0x48f,
YMin = 0x008,
YMax = 0x0ee
};
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
writer.WriteRect(ref rect);
writer.FlushBits();
CheckBits(mem, "01100", "0000.00000100", "0100.10001111", "0000.00001000", "0000.11101110");
mem.Seek(0, SeekOrigin.Begin);
}
public void WriteFixedPoint16FromBitsTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
const int val = 0x03aa4523;
const ushort hi = val >> 16;
const ushort low = val & 0xffff;
const double expected = hi + low / 65536.0;
var bits = new SignedBitsCount(hi).GetBits() + 16;
writer.WriteFixedPoint16(expected, bits);
writer.FlushBits();
mem.Seek(0, SeekOrigin.Begin);
var reader = new SwfStreamReader(mem);
double actual = reader.ReadFixedPoint16(bits);
Assert.AreEqual(expected, actual);
}
protected void WriteBits(Stream stream, params string[] bits)
{
var writer = new SwfStreamWriter(stream);
foreach (var bitString in bits) {
foreach (var ch in bitString) {
switch (ch) {
case '0':
writer.WriteBit(false);
break;
case '1':
writer.WriteBit(true);
break;
case '.':
break;
default:
throw new InvalidOperationException("Invalid character " + ch);
}
}
}
writer.FlushBits();
stream.Seek(0, SeekOrigin.Begin);
}
public void ReadFixedPoint16FromBitsTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
const int val = 0x03aa4523;
const ushort hi = val >> 16;
const ushort low = val & 0xffff;
const double expected = hi + low / 65536.0;
var bits = new SignedBitsCount(hi).GetBits();
writer.WriteUnsignedBits(hi, bits);
writer.WriteUnsignedBits(low, 16);
writer.FlushBits();
mem.Seek(0, SeekOrigin.Begin);
var reader = new SwfStreamReader(mem);
double actual = reader.ReadFixedPoint16(bits + 16);
Assert.AreEqual(expected, actual);
}
public void ReadNegativeFixedPoint16FromBitsTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
const int val = -81920;
var bits = new SignedBitsCount(val).GetBits();
writer.WriteSignedBits(val, bits);
writer.FlushBits();
mem.Seek(0, SeekOrigin.Begin);
var reader = new SwfStreamReader(mem);
double actual = reader.ReadFixedPoint16(bits);
Assert.AreEqual(-1.25, actual);
}
public void WriteRectTest2()
{
var rect = new SwfRect {
XMin = 0x004,
XMax = 0x48f,
YMin = 0x008,
YMax = 0x0ee
};
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
writer.WriteRect(ref rect);
writer.FlushBits();
CheckBits(mem, "01100", "0000.00000100", "0100.10001111", "0000.00001000", "0000.11101110");
mem.Seek(0, SeekOrigin.Begin);
}
public void WriteNegativeFixedPoint16FromBitsTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
var bits = new SignedBitsCount(-81920).GetBits();
writer.WriteFixedPoint16(-1.25, bits);
writer.FlushBits();
mem.Seek(0, SeekOrigin.Begin);
var reader = new SwfStreamReader(mem);
int actual = reader.ReadSignedBits(bits);
Assert.AreEqual(-81920, actual);
}
