// converts a lat long texture to a cubemap
public TextureArray2D ConvertToCube(TextureArray2D latlong, int resolution)
{
Debug.Assert(latlong.NumLayers == 1);
var dst = new TextureArray2D(new LayerMipmapCount(6, 1), new Size3(resolution, resolution), Format.R32G32B32A32_Float, false);
var dev = Device.Get();
quad.Bind(false);
dev.Pixel.Set(toCube.Pixel);
dev.Pixel.SetShaderResource(0, latlong.GetSrView(LayerMipmapSlice.Mip0));
dev.Pixel.SetSampler(0, sampler);
dev.OutputMerger.SetRenderTargets(null,
dst.GetRtView(new LayerMipmapSlice(0, 0)),
dst.GetRtView(new LayerMipmapSlice(1, 0)),
dst.GetRtView(new LayerMipmapSlice(2, 0)),
dst.GetRtView(new LayerMipmapSlice(3, 0)),
dst.GetRtView(new LayerMipmapSlice(4, 0)),
dst.GetRtView(new LayerMipmapSlice(5, 0)));
dev.SetViewScissors(resolution, resolution);
dev.DrawQuad();
dev.Pixel.SetShaderResource(0, null);
dev.Pixel.SetSampler(0, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
return(dst);
}
private void Apply(TextureArray2D src, TextureArray2D dst, int dirX, int dirY)
{
quad.Bind(false);
var dev = Device.Get();
dev.Pixel.Set(shader.Pixel);
cbuffer.SetData(new DirSizeData
{
DirX = dirX,
DirY = dirY,
SizeX = src.Size.Width,
SizeY = src.Size.Height
});
dev.Pixel.SetConstantBuffer(0, cbuffer.Handle);
dev.SetViewScissors(dst.Size.Width, dst.Size.Height);
foreach (var lm in src.LayerMipmap.LayersOfMipmap(0))
{
dev.Pixel.SetShaderResource(0, src.GetSrView(lm));
dev.OutputMerger.SetRenderTargets(dst.GetRtView(lm));
dev.DrawQuad();
}
dev.Pixel.SetShaderResource(0, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
}
public void Run(ShaderResourceView left, ShaderResourceView right, RenderTargetView dst, int borderSize, int borderLocation, int width, int height)
{
Debug.Assert(borderLocation >= 0);
Debug.Assert(borderLocation < width);
quad.Bind(false);
var dev = Device.Get();
dev.Pixel.Set(pixel.Pixel);
// update buffer
cbuffer.SetData(new BufferData
{
BorderLocation = borderLocation,
BorderSize = borderSize
});
// bind and draw
dev.Pixel.SetConstantBuffer(0, cbuffer.Handle);
dev.Pixel.SetShaderResource(0, left);
dev.Pixel.SetShaderResource(1, right);
dev.OutputMerger.SetRenderTargets(dst);
dev.SetViewScissors(width, height);
dev.DrawQuad();
// unbind
dev.Pixel.SetShaderResource(0, null);
dev.Pixel.SetShaderResource(1, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
}
/// <summary>
/// copies a single mip from one layer of a texture to another layer of a texture. The formats don't have to match
/// </summary>
/// <param name="src">source texture</param>
/// <param name="dst">destination texture</param>
public void CopyLayer(ITexture src, LayerMipmapSlice srcLm, ITexture dst, LayerMipmapSlice dstLm)
{
Debug.Assert(src.Size == dst.Size);
var dev = DirectX.Device.Get();
quad.Bind(src.Is3D);
if (src.Is3D)
{
dev.Pixel.Set(convert3D.Pixel);
}
else
{
dev.Pixel.Set(convert2D.Pixel);
}
dev.Pixel.SetShaderResource(0, src.View);
cbuffer.SetData(new LayerLevelOffsetData
{
Layer = srcLm.Layer,
Level = srcLm.Mipmap,
Xoffset = 0,
Yoffset = 0,
Multiplier = 1.0f,
UseOverlay = 0,
Scale = 1
});
var dim = dst.Size.GetMip(dstLm.Mipmap);
dev.Pixel.SetConstantBuffer(0, cbuffer.Handle);
dev.OutputMerger.SetRenderTargets(dst.GetRtView(dstLm));
dev.SetViewScissors(dim.Width, dim.Height);
dev.DrawFullscreenTriangle(dim.Depth);
// remove bindings
dev.Pixel.SetShaderResource(0, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
}
public Texture3D ConvertTo3D(TextureArray2D src)
{
var dst = new Texture3D(1, new Size3(src.Size.X, src.Size.Y, src.NumLayers), Format.R32G32B32A32_Float,
false);
var dev = Device.Get();
quad.Bind(true);
dev.Pixel.Set(shader3D.Pixel);
dev.Pixel.SetShaderResource(0, src.View);
dev.OutputMerger.SetRenderTargets(dst.GetRtView(LayerMipmapSlice.Mip0));
dev.SetViewScissors(dst.Size.Width, dst.Size.Height);
dev.DrawFullscreenTriangle(dst.Size.Z);
dev.Pixel.SetShaderResource(0, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
return(dst);
}
/// <summary>
/// converts the texture into another format and performs cropping if requested
/// </summary>
/// <param name="texture">source texture</param>
/// <param name="dstFormat">destination format</param>
/// <param name="mipmap">mipmap to export, -1 for all mipmaps</param>
/// <param name="layer">layer to export, -1 for all layers</param>
/// <param name="multiplier">rgb channels will be multiplied by this value</param>
/// <param name="crop">indicates if the image should be cropped, only works with 1 mipmap to export</param>
/// <param name="offset">if crop: offset in source image</param>
/// <param name="size">if crop: size of the destination image</param>
/// <param name="align">if nonzero: texture width will be aligned to this (rounded down)</param>
/// <returns></returns>
public ITexture Convert(ITexture texture, SharpDX.DXGI.Format dstFormat, int mipmap, int layer, float multiplier, bool crop,
Size3 offset, Size3 size, Size3 align)
{
Debug.Assert(ImageFormat.IsSupported(dstFormat));
Debug.Assert(ImageFormat.IsSupported(texture.Format));
// set width, height mipmap
int firstMipmap = Math.Max(mipmap, 0);
int firstLayer = Math.Max(layer, 0);
int nMipmaps = mipmap == -1 ? texture.NumMipmaps : 1;
int nLayer = layer == -1 ? texture.NumLayers : 1;
// set correct width, height, offsets
if (!crop)
{
size = texture.Size.GetMip(firstMipmap);
offset = Size3.Zero;
}
// adjust alignments
for (int i = 0; i < 3; ++i)
{
if (align[i] != 0)
{
if (size[i] % align[i] != 0)
{
if (size[i] < align[i])
{
throw new Exception($"image needs to be aligned to {align[i]} but one axis is only {size[i]}. Axis should be at least {align[i]}");
}
crop = true;
var remainder = size[i] % align[i];
offset[i] = offset[i] + remainder / 2;
size[i] = size[i] - remainder;
}
}
}
bool recomputeMips = nMipmaps > 1 && crop;
if (recomputeMips)
{
// number of mipmaps might have changed
nMipmaps = ImagesModel.ComputeMaxMipLevels(size);
recomputeMips = nMipmaps > 1;
}
var res = texture.Create(nLayer, nMipmaps, size, dstFormat, false);
var dev = DirectX.Device.Get();
quad.Bind(texture.Is3D);
if (texture.Is3D)
{
dev.Pixel.Set(convert3D.Pixel);
}
else
{
dev.Pixel.Set(convert2D.Pixel);
}
dev.Pixel.SetShaderResource(0, texture.View);
for (int curLayer = 0; curLayer < nLayer; ++curLayer)
{
for (int curMipmap = 0; curMipmap < nMipmaps; ++curMipmap)
{
cbuffer.SetData(new LayerLevelOffsetData
{
Layer = curLayer + firstLayer + offset.Z,
Level = curMipmap + firstMipmap,
Xoffset = offset.X,
Yoffset = offset.Y,
Multiplier = multiplier
});
var dim = res.Size.GetMip(curMipmap);
dev.Pixel.SetConstantBuffer(0, cbuffer.Handle);
dev.OutputMerger.SetRenderTargets(res.GetRtView(curLayer, curMipmap));
dev.SetViewScissors(dim.Width, dim.Height);
dev.DrawFullscreenTriangle(dim.Depth);
if (recomputeMips)
{
break; // only write most detailed mipmap
}
}
}
// remove bindings
dev.Pixel.SetShaderResource(0, null);
dev.OutputMerger.SetRenderTargets((RenderTargetView)null);
quad.Unbind();
if (recomputeMips)
{
res.RegenerateMipmapLevels();
}
return(res);
}