public unsafe SafeHGlobalHandle ReadImage()
{
SafeHGlobalHandle result = new SafeHGlobalHandle(GetImageSize());
byte * ptr = (byte *)result.DangerousGetHandle().ToPointer();
using (DisposableAction insurance = new DisposableAction(result.Dispose))
{
for (int y = 0; y < _header.BlockCount; y++)
{
byte *blockPtr = ptr + y * _header.BlockSize * 2;
for (int x = 0, i = 0; x < _header.BlockSize; x++)
{
byte b = (byte)_input.ReadByte();
*(blockPtr + i) = (byte)(b & 0x33);
*(blockPtr + i + 8) = (byte)((b >> 2) & 0x33);
if (++i % 8 == 0)
{
i += 8;
}
}
}
insurance.Cancel();
}
return(result);
}
public override async Task <GLTexture> ReadTextureAsync(CancellationToken cancelationToken)
{
if (cancelationToken.IsCancellationRequested)
{
return(RaiseTextureReaded(null));
}
BitmapData bmdata = _bitmap.LockBits(new Rectangle(0, 0, _width, _height), ImageLockMode.ReadOnly, _format);
using (DisposableAction unlocker = new DisposableAction(() => _bitmap.UnlockBits(bmdata)))
{
GLTexture texture;
using (GLService.AcquireContext())
texture = new GLTexture(GL.GenTexture(), _width, _height, _format);
using (DisposableAction insurance = new DisposableAction(texture.Dispose))
{
if (cancelationToken.IsCancellationRequested)
{
return(RaiseTextureReaded(null));
}
using (GLService.AcquireContext())
{
GL.BindTexture(TextureTarget.Texture2D, texture.Id);
GL.TexImage2D(TextureTarget.Texture2D, 0, _format, bmdata.Width, bmdata.Height, 0, _format, _format, bmdata.Scan0);
}
//ErrorCode error = GL.GetError();
//if (error != ErrorCode.NoError)
// throw new ArgumentException("Error building TexImage. GL Error: " + error);
_bitmap.UnlockBits(bmdata);
unlocker.Cancel();
if (cancelationToken.IsCancellationRequested)
{
return(RaiseTextureReaded(null));
}
using (GLService.AcquireContext())
{
GL.BindTexture(TextureTarget.Texture2D, texture.Id);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
}
insurance.Cancel();
}
return(RaiseTextureReaded(texture));
}
}
public SafeHGlobalHandle GetUnmanagedPixelsArray(PixelFormatDescriptor format)
{
SafeHGlobalHandle result = new SafeHGlobalHandle(Width * Height * format.BytesPerPixel);
using (GLService.AcquireContext())
using (DisposableAction insurance = new DisposableAction(result.Dispose))
{
GL.BindTexture(TextureTarget.Texture2D, Id);
GL.GetTexImage(TextureTarget.Texture2D, 0, format, format, result.DangerousGetHandle());
insurance.Cancel();
}
return(result);
}
public GLPalettedTextureShaderProgram()
{
using (DisposableAction insurance = new DisposableAction(Dispose))
{
using (GLService.AcquireContext())
using (GLShader fs = GLShader.CompileShaderFromSource(FragmentShaderSource, ShaderType.FragmentShader))
using (GLShader vs = GLShader.CompileShaderFromSource(VertexShaderSource, ShaderType.VertexShader))
{
GL.AttachShader(Id, fs.Id);
GL.AttachShader(Id, vs.Id);
Link();
}
insurance.Cancel();
}
}
public FileSegment GetMetricFileStream(MemoryMappedFileAccess access)
{
if (ParentArchive != null)
{
MemoryMappedFile mmf = GetMemoryMappedFile(access);
return(new FileSegment(mmf, MetricsEntry.GetAbsoluteOffset(), MetricsEntry.UncompressedContentSize, access));
}
string path = Path.Combine(Options.GameDataDirectoryPath, Name + ".fi");
FileStream stream = new FileStream(path, FileMode.Open, ConvertAccess(access), FileShare.ReadWrite);
using (DisposableAction insurance = new DisposableAction(stream.Dispose))
{
MemoryMappedFile mmf = MemoryMappedFile.CreateFromFile(stream, null, 0, access, null, HandleInheritability.Inheritable, false);
insurance.Cancel();
return(new FileSegment(mmf, 0, stream.Length, access));
}
}
