protected override void Write(ContentWriter output, TerrainShadeInfo value)
{
TerrainShadeTag tst = (TerrainShadeTag)value.tag_;
output.WriteExternalReference <CompiledEffect>(tst.effect_);
output.WriteExternalReference <TextureContent>(tst.splatControl_);
output.WriteExternalReference <TextureContent>(tst.base_);
output.WriteExternalReference <TextureContent>(tst.r_);
output.WriteExternalReference <TextureContent>(tst.g_);
output.WriteExternalReference <TextureContent>(tst.b_);
output.WriteExternalReference <TextureContent>(tst.a_);
output.WriteExternalReference <TextureContent>(tst.nDetail_);
output.WriteObject <Texture2DContent>(tst.normalMap_);
}
public override TOutput Process(TInput input, ContentProcessorContext context)
{
input.ConvertBitmapType(typeof(PixelBitmapContent <Single>));
PixelBitmapContent <Single> bm = input.Mipmaps[0] as PixelBitmapContent <Single>;
int w = bm.Width;
int h = bm.Height;
if (((w - 2) & (w - 1)) != 0 || ((h - 2) & (h - 1)) != 0 ||
w < Page.DataSizeWithoutPad || h < Page.DataSizeWithoutPad)
{
throw new Microsoft.Xna.Framework.Content.Pipeline.InvalidContentException(
String.Format("PageSource texture must be power of 2 plus 1 in each direction, at least {0} pixels; got {1}x{2}.",
Page.DataSizeWithPad, w, h),
input.Identity);
}
int wt = (w - 1) / Page.DataSizeWithoutPad;
int ht = (h - 1) / Page.DataSizeWithoutPad;
int minx = -wt / 2;
int minz = -ht / 2;
int maxx = minx + wt;
int maxz = minz + ht;
TOutput ps = new TOutput();
float f = bm.GetPixel(0, 0);
bool ok = false;
unchecked
{
for (int z = minz; z < maxz; ++z)
{
for (int x = minx; x < maxx; ++x)
{
Page p = new Page();
PageAddress pa = new PageAddress();
pa.X = x;
pa.Z = z;
PageRect pr = PageAddress.RectFor(pa);
p.SetAddress(pa, pr);
ushort[] data = new ushort[Page.DataSizeWithPad * Page.DataSizeWithPad];
int[] count = new int[65536];
for (int v = 0; v < Page.DataSizeWithPad; ++v)
{
for (int u = 0; u < Page.DataSizeWithPad; ++u)
{
float q = bm.GetPixel(u + (x - minx) * Page.DataSizeWithoutPad,
v + (z - minz) * Page.DataSizeWithoutPad);
if (q != f)
{
ok = true;
}
ushort b;
if (q < 0)
{
b = 0;
}
else if (q > 1)
{
b = 65535;
}
else
{
b = (ushort)(q * 65535);
}
count[b]++;
data[v * Page.DataSizeWithPad + u] = b;
}
}
int numBins = 0;
for (int i = 0; i < 65536; ++i)
{
if (count[i] != 0)
{
++numBins;
}
}
p.SetData(data);
ps.AddPage(p);
}
}
}
if (!ok)
{
throw new Microsoft.Xna.Framework.Content.Pipeline.InvalidContentException(
String.Format("The input data has all the same value ({0}).", f),
input.Identity);
}
TerrainShadeTag tst = new TerrainShadeTag();
tst.effect_ = context.BuildAsset <EffectContent, CompiledEffect>(
new ExternalReference <EffectContent>(tsi_.terrainEffectName_),
"EffectProcessor");
tst.splatControl_ = BuildControlTexture(context, tsi_.splatTextureName_);
tst.base_ = BuildTexture(context, tsi_.baseSplatTextureName_);
tst.r_ = BuildTexture(context, tsi_.rSplatTextureName_);
tst.g_ = BuildTexture(context, tsi_.gSplatTextureName_);
tst.b_ = BuildTexture(context, tsi_.bSplatTextureName_);
tst.a_ = BuildTexture(context, tsi_.aSplatTextureName_);
tst.nDetail_ = BuildTexture(context, tsi_.nDetailTextureName_);
PixelBitmapContent <Color> normalPixels = new PixelBitmapContent <Color>(w - 1, h - 1);
BuildNormalMap(bm, normalPixels);
tst.normalMap_ = new Texture2DContent();
tst.normalMap_.Mipmaps = new MipmapChain(normalPixels);
tst.normalMap_.GenerateMipmaps(true);
NormalizeMipmaps(tst.normalMap_.Mipmaps);
tsi_.tag_ = tst;
ps.ShadeInfo = tsi_;
return(ps);
}
