public static void AreEqual(SwfRect actual, SwfRect expected, string message)
{
Assert.AreEqual(expected.XMin, actual.XMin, message + ": XMin");
Assert.AreEqual(expected.XMax, actual.XMax, message + ": XMax");
Assert.AreEqual(expected.YMin, actual.YMin, message + ": YMin");
Assert.AreEqual(expected.YMax, actual.YMax, message + ": YMax");
}
public static XElement ToXml(SwfRect rect)
{
return new XElement("Rectangle",
new XAttribute("left", rect.XMin),
new XAttribute("right", rect.XMax),
new XAttribute("top", rect.YMin),
new XAttribute("bottom", rect.YMax));
}
public static void ReadRect(this ISwfStreamReader reader, out SwfRect rect)
{
var bits = reader.ReadUnsignedBits(5);
rect.XMin = reader.ReadSignedBits(bits);
rect.XMax = reader.ReadSignedBits(bits);
rect.YMin = reader.ReadSignedBits(bits);
rect.YMax = reader.ReadSignedBits(bits);
reader.AlignToByte();
}
/// <summary>
/// Writes rectangle to the writer.
/// </summary>
/// <param name="writer">Writer to which to write rectangle.</param>
/// <param name="rect">Rectangle to be written.</param>
public static void WriteRect(this ISwfStreamWriter writer, ref SwfRect rect)
{
var btCount = new SignedBitsCount(rect.XMin, rect.XMax, rect.YMin, rect.YMax);
var bits = btCount.GetBits();
if (bits < 1) bits = 1;
writer.WriteUnsignedBits(bits, 5);
writer.WriteSignedBits(rect.XMin, bits);
writer.WriteSignedBits(rect.XMax, bits);
writer.WriteSignedBits(rect.YMin, bits);
writer.WriteSignedBits(rect.YMax, bits);
writer.FlushBits();
}
public void WriteRectMustbeByteAlignedTest()
{
var rect = new SwfRect {
XMin = 0,
XMax = 11000,
YMin = 0,
YMax = 8000
};
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
writer.WriteRect(ref rect);
writer.WriteUnsignedBits(0xb3, 8);
Assert.AreEqual(new byte[] { 0x78, 0x00, 0x05, 0x5f, 0x00, 0x00, 0x0f, 0xa0, 0x00, 0xb3 }, mem.ToArray());
}
public void ReadRectTest()
{
var etalon = new SwfRect {
XMin = 0,
XMax = 11000,
YMin = 0,
YMax = 8000
};
var mem = new MemoryStream(new byte[] { 0x78, 0x00, 0x05, 0x5f, 0x00, 0x00, 0x0f, 0xa0, 0x00 });
var reader = new SwfStreamReader(mem);
SwfRect rect = reader.ReadRect();
Assert.IsTrue(AreEqual(etalon, rect));
Assert.AreEqual(mem.Length, mem.Position);
}
public void ReadRectTest2()
{
var etalon = new SwfRect {
XMin = 0x004,
XMax = 0x48f,
YMin = 0x008,
YMax = 0x0ee
};
var mem = new MemoryStream();
WriteBits(mem, "01100", "0000.00000100", "0100.10001111", "0000.00001000", "0000.11101110");
var reader = new SwfStreamReader(mem);
SwfRect rect = reader.ReadRect();
Assert.IsTrue(AreEqual(etalon, rect));
Assert.AreEqual(mem.Length, mem.Position);
}
public void ReadRectMustBeByteAlignedTest()
{
var etalon = new SwfRect {
XMin = 0,
XMax = 11000,
YMin = 0,
YMax = 8000
};
var mem = new MemoryStream(new byte[] { 0x78, 0x00, 0x05, 0x5f, 0x00, 0x00, 0x0f, 0xa0, 0x00, 0xb3 });
var reader = new SwfStreamReader(mem);
SwfRect rect = reader.ReadRect();
Assert.IsTrue(AreEqual(etalon, rect));
var tail = reader.ReadUnsignedBits(8);
Assert.AreEqual(0xb3, tail);
Assert.AreEqual(mem.Length, mem.Position);
}
public void ReadSwfHeaderTest()
{
var mem = new MemoryStream();
var writer = new SwfStreamWriter(mem);
var rect = new SwfRect {
XMin = 0x004,
XMax = 0x48f,
YMin = 0x008,
YMax = 0x0ee
};
writer.WriteRect(ref rect);
writer.WriteFixedPoint8(23.75);
writer.WriteUInt16(20);
mem.Seek(0, SeekOrigin.Begin);
var reader = new SwfStreamReader(mem);
var hdr = reader.ReadSwfHeader();
Assert.AreEqual(rect, hdr.FrameSize);
Assert.AreEqual(23.75, hdr.FrameRate);
Assert.AreEqual(20, hdr.FrameCount);
Assert.AreEqual(mem.Length, mem.Position, "Should reach end of the stream");
}
/// <summary>
/// Writes rectangle to the writer.
/// </summary>
/// <param name="writer">Writer to which to write rectangle.</param>
/// <param name="rect">Rectangle to be written.</param>
public static void WriteRect(this ISwfStreamWriter writer, SwfRect rect)
{
writer.WriteRect(ref rect);
}
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);
}
private static bool AreEqual(SwfRect a, SwfRect b)
{
if (a.XMin != b.XMin) return false;
if (a.XMax != b.XMax) return false;
if (a.YMin != b.YMin) return false;
if (a.YMax != b.YMax) return false;
return true;
}
