/// <summary>image processing render pass on entire image; given multiple input images, technique name, and parms</summary>
public ImageTex Xrender(ImageTex[] inimages, String name, float[] parms)
{
FullTechnique technique = GetTechnique(name, parms);
ImageTex nimage = Xrender(inimages, technique);
return(nimage);
}
/* test
* for(int i=0; i<100;i++) { DE("q", "float p1=parms[1]; float p2=parms[2];col=(ii0+i[p1,p2])/2;"); i1.Xrender("q", new float[]{2,i,2*i}).Show(); }
* */
/// <summary>
/// Get the technique given a possibly abbbreviated name, and apply parms
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public FullTechnique GetTechnique(string name, float[] parms)
{
name = name.ToLower();
FullTechnique r = null;
if (dynamicEffects.ContainsKey(name))
{
r = dynamicEffects[name];
}
foreach (var technique in mainEffect.Techniques)
{
if (technique.Name.ToLower().StartsWith(name.ToLower()))
{
r = new FullTechnique(mainEffect, technique, technique.Name);
}
}
if (r == null)
{
r = DynamicTechnique(name);
}
if (r == null)
{
throw new Exception("Technique not found for " + name);
}
r = new FullTechnique(r); // clone so we don't corrupt others
r.parms = parms;
return(new FullTechnique(r)); // surely we don't need TWO new FullTechnique ???
}
/// <summary>copy constructor for technique (eg use this if you want different parms)</summary>
internal FullTechnique(FullTechnique t)
{
technique = t.technique;
effect = t.effect;
stepKernelXy = t.stepKernelXy;
imageparm = t.imageparm;
parms = t.parms == null ? null : (float[])(t.parms.Clone());
Name = t.Name;
}
///// <summary>Create an effect from a string, using a file as a temporary staging post (only used for some time tests)</summary>
//internal Effect CreateEffectViaFile(string name, string s) {
// string fid = "temp.fx";
// string c = CreateFullEffectCode(s);
// File.WriteAllText(fid, c, Encoding.ASCII);
// Effect effect = LoadContentRuntimeFid(fid);
// dynamicEffects[name] = new FullTechnique(effect, effect.Techniques["Standard"]);
// return effect;
//}
/// <summary>Create a named technique from the "Standard" technique in an effect string </summary>
private FullTechnique CreateEffectDirectI(string name, string s)
{
string c = CreateFullEffectCode(s);
Effect effect = LoadContentRuntimeString(c, name);
if (effect == null)
{
return(null);
}
FullTechnique ft = new FullTechnique(effect, effect.Techniques["Standard"], name);
return(ft);
}
/// <summary>
/// generate a dynamic technique for the given name (TODO: make more generic)
/// name may be xxx_N_M for an NxM filter, and also xxx_N for an NxN filter
/// Unsharp_ 1..5
/// Percentile_ 0..2 (requires a single percentile parameter)
/// Median_ 0..2
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
private FullTechnique DynamicTechnique(String name)
{
name = name.ToLower();
string[] nn = name.Split('_');
int pp0 = nn.Count() > 1 ? nn[1].Int() : 0;
int pp1 = nn.Count() > 2 ? nn[2].Int() : pp0;
FullTechnique ft = null;
try {
if (nn[0] == "median")
{
ft = MedianTest(pp0, pp1);
}
else if (nn[0] == "percentile")
{
ft = PercentileTest(pp0, pp1);
}
else if (nn[0] == "unsharp")
{
ft = CreateEffectDirect(name, DynamicFx.Unsharp, "X", pp0 + "", "Y", pp1 + "");
}
else
{
return(null);
}
} catch (Exception e) {
Form1.Beep("Cannot create technique " + name + " " + e);
return(null);
}
string nname = nn[0] + "_" + pp0 + "_" + pp1;
Console.Out.WriteLine("Generated technique " + nname);
dynamicEffects[nname] = ft;
if (pp0 == pp1)
{
dynamicEffects[nn[0] + "_" + pp0] = ft;
}
return(ft);
}
/// <summary>image processing render pass on entire image;
/// given multiple input images, technique and transformation matrix and required output size
/// </summary>
internal ImageTex Xrender(ImageTex[] inimage, FullTechnique ftechnique, Matrix tran, int ssizeX, int ssizeY)
{
//*//if (dotime) timer.Start();
EffectTechnique ltechnique = ftechnique.technique;
Effect effect = ftechnique.effect;
RenderTarget2D xxtarget;
NextOp op = inimage[0].nextOpNew; // STD, ALT, SHARE, NEW
int isizeX = inimage[0].Width;
int isizeY = inimage[0].Height;
if (ssizeX == 0)
{
ssizeX = isizeX;
}
if (ssizeY == 0)
{
ssizeY = isizeY;
}
switch (op)
{
case NextOp.STD: xxtarget = xtarget; break;
case NextOp.ALT: xxtarget = xtarget1; break;
case NextOp.SHARE: rtn++; xxtarget = rts[rtn % SIZE]; break;
case NextOp.NEW: xxtarget = null; break;
default: throw new Exception("Unexpected NewOp " + op);
}
SurfaceFormat sf = useVector4 ? SurfaceFormat.Vector4 : graphicsDevice.DisplayMode.Format;
if (xxtarget == null || xxtarget.Width != ssizeX || xxtarget.Height != ssizeY || xxtarget.Format != sf)
{
// programming note: TODO:
// If the xxtarget is not the right size, I can't get things to work.
// Even if it is too big and I cut it down with viewports.
// This reallocation does not seem to matter too much with graphicsDevice.DisplayMode.Format,
// but is a performance problem with SurfaceFormat.Vector4.
// We probably don't need Vector4 too much anyway, but if we do we should cache a few RenderTargets for the case of size changing often
// (this multisize case arises a lot in the scanline test code).
// Console.WriteLine("xxsize " + ssizeX + " " + ssizeY);
xxtarget = new RenderTarget2D(graphicsDevice, ssizeX, ssizeY, 1, sf);
switch (op)
{
case NextOp.STD: xtarget = xxtarget; break;
case NextOp.ALT: xtarget1 = xxtarget; break;
case NextOp.SHARE: rts[rtn % SIZE] = xxtarget; break;
case NextOp.NEW: break;
default: throw new Exception("Unexpected NewOp " + op);
}
}
Viewport savevp = graphicsDevice.Viewport; // this should match the screen size
graphicsDevice.SetRenderTarget(0, xxtarget); // << note that this changes graphicsDevice.Viewport to xxtarget = image size
graphicsDevice.Clear(Microsoft.Xna.Framework.Graphics.Color.Gray); // this processing should often cover entire image, so no need to clear
float h = 0.5f;
//Matrix mat = new Matrix(h, 0, 0, 0, 0, -h, 0, 0, 0, 0, 1, 0, h + h / isizeX, h + h / isizeY, 0, 1);
//Matrix ss0 = new Matrix(1, 0, 0, 0, 0, isizeY * 1.0f / isizeX, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
//Matrix ss1 = new Matrix(1, 0, 0, 0, 0, isizeX * 1.0f / isizeY, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
//mat = mat * ss0 * tran * ss1; // *mat;
Matrix mat = new Matrix(h, 0, 0, 0, 0, -h, 0, 0, 0, 0, 1, 0, h + h / isizeX, h + h / isizeY, 0, 1);
mat = mat * tran; // *mat;
effect.Parameters["TexProj"].SetValue(mat);
effect.Parameters["isize"].SetValue(new Vector2(isizeX, isizeY));
effect.Parameters["stepImageXy"].SetValue(inimage[0].stepImageXy);
ftechnique.SetParameters();
if (inimage.Length >= 1)
{
effect.Parameters["image"].SetValue(inimage[0].texture);
}
if (inimage.Length >= 2)
{
effect.Parameters["image2"].SetValue(inimage[1].texture);
}
if (inimage.Length >= 3)
{
effect.Parameters["image3"].SetValue(inimage[2].texture);
}
if (inimage.Length >= 4)
{
effect.Parameters["image4"].SetValue(inimage[3].texture);
}
RunEffect(effect);
graphicsDevice.SetRenderTarget(0, null); // << note that this changes graphicsDevice.Viewport to (large) backBuffer size
Texture2D result = xxtarget.GetTexture();
graphicsDevice.Viewport = savevp; // restore the back buffer
// ? timer not reliable, work not complete behind the scenes
//*//if (dotime) timer.time(ltechnique.Name);
// TODO: improve fid text
ImageTex r = new ImageTex(inimage[0].fid + ";" + ltechnique, result, this, inimage[0].fileInfo + " " + ftechnique.Name);
// r.Show();
return(r);
}
/// <summary>image processing render pass on entire image; given multiple input images and technique</summary>
public ImageTex Xrender(ImageTex[] inimage, FullTechnique ltechnique)
{
return(Xrender(inimage, ltechnique, Matrix.Identity, 0, 0));
}
/// <summary>image processing render pass on entire image; given input image and technique</summary>
public ImageTex Xrender(ImageTex inimage, FullTechnique ltechnique)
{
return(Xrender(new ImageTex[] { inimage }, ltechnique));
}