public void updateData()
{
GL.Enable(EnableCap.Texture2D);
bind();
OGL.PixelInternalFormat pif = OGL.PixelInternalFormat.Rgba;
OGL.PixelFormat pf = OGL.PixelFormat.Rgba;
OGL.PixelType pt = OGL.PixelType.UnsignedByte;
GL.TexImage2D <Byte>(target, 0, pif, myWidth, myHeight, 0, pf, pt, myData);
unbind();
}
public Texture(int texWidth, int texHeight, OGL.PixelInternalFormat pif = PixelInternalFormat.Rgba8, PixelData pixels = null, bool generateMipmaps = false)
{
target = TextureTarget.Texture2D;
myWidth = texWidth;
myHeight = texHeight;
myPixelFormat = pif;
GL.GenTextures(1, out myId);
bind();
if (pixels != null)
{
myData = pixels.data;
myDataType = pixels.dataType;
GL.TexImage2D(target, 0, myPixelFormat, myWidth, myHeight, 0, pixels.pixelFormat, myDataType, myData);
}
else
{
myData = null;
OGL.PixelFormat pf;
findPixelType(myPixelFormat, out pf, out myDataType);
GL.TexImage2D(target, 0, myPixelFormat, myWidth, myHeight, 0, pf, myDataType, myData);
}
GL.TexParameter(target, TextureParameterName.TextureBaseLevel, 0);
if (generateMipmaps == false)
{
GL.TexParameter(target, TextureParameterName.TextureMaxLevel, 0); //needed since no mip maps are created
setMinMagFilters(TextureMinFilter.Nearest, TextureMagFilter.Nearest);
}
setWrapping(TextureWrapMode.Repeat, TextureWrapMode.Repeat);
if (myData == null)
{
Info.print("Created empty texture with id: " + myId);
}
else
{
Info.print("Created user defined texture with id: " + myId);
}
if (generateMipmaps)
{
createMipMaps();
setMinMagFilters(TextureMinFilter.LinearMipmapLinear, TextureMagFilter.Linear);
}
unbind();
}
public bool paste(float[] source, Vector2 loc, Vector2 size, OGL.PixelFormat pf)
{
if (myId == 0)
{
return(false);
}
GL.PixelStore(PixelStoreParameter.UnpackAlignment, 1);
bind();
OGL.PixelType pt = OGL.PixelType.Float;
GL.TexSubImage2D <float>(target, 0, (int)loc.X, (int)loc.Y, (int)size.X, (int)size.Y, pf, pt, source);
unbind();
return(true);
}
public Bitmap loadBitmap(string filename, out OGL.PixelInternalFormat pif, out OGL.PixelFormat pf, out OGL.PixelType pt)
{
filename = Path.GetFullPath(filename);
if (File.Exists(filename) == false)
{
throw new Exception("File " + filename + " does not exist");
}
Bitmap CurrentBitmap = null;
try // Exceptions will be thrown if any Problem occurs while working on the file.
{
if (Path.GetExtension(filename) == ".pcx")
{
CurrentBitmap = PCX.load(filename);
}
else
{
CurrentBitmap = new Bitmap(filename);
}
evalBitmap(CurrentBitmap, out pif, out pf, out pt);
//flip the image since it's backwards from what opengl expects
if (myFlip == true)
{
CurrentBitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
}
return(CurrentBitmap);
}
catch (Exception e)
{
throw new Exception("Texture Loading Error: Failed to read file " + filename + ": " + e.Message);
}
}
public void evalBitmap(Bitmap bm, out OGL.PixelInternalFormat pif, out OGL.PixelFormat pf, out OGL.PixelType pt)
{
switch (bm.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format8bppIndexed: // misses glColorTable setup
pif = OGL.PixelInternalFormat.Rgb8;
pf = OGL.PixelFormat.ColorIndex;
pt = OGL.PixelType.Bitmap;
break;
case System.Drawing.Imaging.PixelFormat.Format16bppArgb1555:
case System.Drawing.Imaging.PixelFormat.Format16bppRgb555: // does not work
pif = OGL.PixelInternalFormat.Rgb5A1;
pf = OGL.PixelFormat.Bgr;
pt = OGL.PixelType.UnsignedShort5551Ext;
hasAlpha = true;
break;
/* case System.Drawing.Imaging.PixelFormat.Format16bppRgb565:
* pif = OGL.PixelInternalFormat.R5G6B5IccSgix;
* pf = OGL.PixelFormat.R5G6B5IccSgix;
* pt = OGL.PixelType.UnsignedByte;
* break;
*/
case System.Drawing.Imaging.PixelFormat.Format24bppRgb: // works
pif = OGL.PixelInternalFormat.Rgb8;
pf = OGL.PixelFormat.Bgr;
pt = OGL.PixelType.UnsignedByte;
break;
case System.Drawing.Imaging.PixelFormat.Format32bppRgb: // has alpha too? wtf?
case System.Drawing.Imaging.PixelFormat.Canonical:
case System.Drawing.Imaging.PixelFormat.Format32bppArgb: // works
pif = OGL.PixelInternalFormat.Rgba;
pf = OGL.PixelFormat.Bgra;
pt = OGL.PixelType.UnsignedByte;
hasAlpha = true;
break;
default:
throw new ArgumentException("ERROR: Unsupported Pixel Format " + bm.PixelFormat);
}
}
protected void findPixelType(OGL.PixelInternalFormat pif, out OGL.PixelFormat pf, out OGL.PixelType pt)
{
switch (myPixelFormat)
{
case PixelInternalFormat.DepthComponent32f:
pt = PixelType.Float;
pf = OGL.PixelFormat.DepthComponent;
break;
case PixelInternalFormat.DepthComponent:
pt = PixelType.Float;
pf = OGL.PixelFormat.DepthComponent;
break;
case PixelInternalFormat.R32f:
pt = PixelType.Float;
pf = OGL.PixelFormat.Red;
break;
case PixelInternalFormat.Rgb32f:
pt = PixelType.Float;
pf = OGL.PixelFormat.Rgb;
break;
case PixelInternalFormat.Rgba32f:
pt = PixelType.Float;
pf = OGL.PixelFormat.Rgba;
break;
case PixelInternalFormat.Rgb8:
pt = PixelType.Byte;
pf = OGL.PixelFormat.Rgb;
break;
case PixelInternalFormat.Rgba8:
pt = PixelType.Byte;
pf = OGL.PixelFormat.Rgba;
break;
default:
pt = PixelType.Byte;
pf = OGL.PixelFormat.Rgba;
break;
}
}
