public bool GenTexId()
{
if (m_Id != 0)
{
return(true);
}
m_Id = GL.GenTexture();
if (m_Id == 0)
{
m_LastError = TextureLoadError.OutOfTextureHandles;
return(false);
}
Bind();
GL.TexParameter(m_TextureType, TextureParamName.TextureMinFilter, (int)m_MinFilter);
GL.TexParameter(m_TextureType, TextureParamName.TextureMagFilter, (int)m_MagFilter);
m_LastError = TextureLoadError.NoError;
return(true);
}
public override bool Load(string filename)
{
m_LastError = TextureLoadError.NoError;
if (File.Exists(filename))
{
BitmapFile bmpf;
try {
bmpf = GameFile.LoadFile <BitmapFile>(filename);
}
catch (OutOfMemoryException) {
m_LastError = TextureLoadError.OutOfMemory;
return(false);
}
catch (Exception ex) {
throw new UserFriendlyException(String.Format("There was an error while trying to load a texture bitmap file: {0}", filename), "Error occured while trying to load a texture", ex);
}
return(Load(bmpf.Bitmap));
}
else
{
m_LastError = TextureLoadError.FileNotFound;
}
return(false);
}
public bool Load(int width, int height, byte[] pixels)
{
if (!GenTexId())
{
return(false);
}
m_LastError = TextureLoadError.NoError;
m_Width = width;
m_Height = height;
m_PixelSizeS = 1.0f / (float)m_Width;
m_PixelSizeT = 1.0f / (float)m_Height;
Bind();
if (pixels == null)
{
if (m_TextureType == TextureTarget.Texture2DMultisample)
{
GL.TexImage2DMultisample(
m_TextureType,
m_MultisamplingSamples, InternalPixelFormat.Rgba8,
width, height,
true
);
}
else
{
GL.TexImage2D(
m_TextureType,
0, InternalPixelFormat.Rgba8,
width, height,
0, PixelFormatEnum.Bgra,
IGE.Graphics.OpenGL.PixelType.UnsignedByte, IntPtr.Zero
);
}
}
else
{
lock (pixels.SyncRoot) {
unsafe
{
fixed(byte *pix = &pixels[0])
{
GL.TexImage2D(
m_TextureType,
0, InternalPixelFormat.Rgba8,
width, height,
0, PixelFormatEnum.Bgra,
IGE.Graphics.OpenGL.PixelType.UnsignedByte, pix
);
}
}
}
}
if (m_MinFilter != TextureMinFilter.Linear && m_MinFilter != TextureMinFilter.Nearest)
{
GL.GenerateMipmap(m_TextureType);
}
return(true);
}
