Ryujinx/Ryujinx.Graphics.Texture/LayoutConverter.cs

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using Ryujinx.Common;
using System;
using System.Runtime.Intrinsics;
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using static Ryujinx.Graphics.Texture.BlockLinearConstants;
namespace Ryujinx.Graphics.Texture
{
public static class LayoutConverter
{
private const int HostStrideAlignment = 4;
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public static void ConvertBlockLinearToLinear(
Span<byte> dst,
int width,
int height,
int stride,
int bytesPerPixel,
int gobBlocksInY,
ReadOnlySpan<byte> data)
{
int gobHeight = gobBlocksInY * GobHeight;
int strideTrunc = BitUtils.AlignDown(width * bytesPerPixel, 16);
int strideTrunc64 = BitUtils.AlignDown(width * bytesPerPixel, 64);
int xStart = strideTrunc / bytesPerPixel;
int outStrideGap = stride - width * bytesPerPixel;
int alignment = GobStride / bytesPerPixel;
int wAligned = BitUtils.AlignUp(width, alignment);
BlockLinearLayout layoutConverter = new BlockLinearLayout(wAligned, height, gobBlocksInY, 1, bytesPerPixel);
unsafe bool Convert<T>(Span<byte> output, ReadOnlySpan<byte> data) where T : unmanaged
{
fixed (byte* outputPtr = output, dataPtr = data)
{
byte* outPtr = outputPtr;
for (int y = 0; y < height; y++)
{
layoutConverter.SetY(y);
for (int x = 0; x < strideTrunc64; x += 64, outPtr += 64)
{
byte* offset = dataPtr + layoutConverter.GetOffsetWithLineOffset64(x);
byte* offset2 = offset + 0x20;
byte* offset3 = offset + 0x100;
byte* offset4 = offset + 0x120;
Vector128<byte> value = *(Vector128<byte>*)offset;
Vector128<byte> value2 = *(Vector128<byte>*)offset2;
Vector128<byte> value3 = *(Vector128<byte>*)offset3;
Vector128<byte> value4 = *(Vector128<byte>*)offset4;
*(Vector128<byte>*)outPtr = value;
*(Vector128<byte>*)(outPtr + 16) = value2;
*(Vector128<byte>*)(outPtr + 32) = value3;
*(Vector128<byte>*)(outPtr + 48) = value4;
}
for (int x = strideTrunc64; x < strideTrunc; x += 16, outPtr += 16)
{
byte* offset = dataPtr + layoutConverter.GetOffsetWithLineOffset16(x);
*(Vector128<byte>*)outPtr = *(Vector128<byte>*)offset;
}
for (int x = xStart; x < width; x++, outPtr += bytesPerPixel)
{
byte* offset = dataPtr + layoutConverter.GetOffset(x);
*(T*)outPtr = *(T*)offset;
}
outPtr += outStrideGap;
}
}
return true;
}
bool _ = bytesPerPixel switch
{
1 => Convert<byte>(dst, data),
2 => Convert<ushort>(dst, data),
4 => Convert<uint>(dst, data),
8 => Convert<ulong>(dst, data),
12 => Convert<Bpp12Pixel>(dst, data),
16 => Convert<Vector128<byte>>(dst, data),
_ => throw new NotSupportedException($"Unable to convert ${bytesPerPixel} bpp pixel format.")
};
}
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public static Span<byte> ConvertBlockLinearToLinear(
int width,
int height,
int depth,
int levels,
int layers,
int blockWidth,
int blockHeight,
int bytesPerPixel,
int gobBlocksInY,
int gobBlocksInZ,
int gobBlocksInTileX,
SizeInfo sizeInfo,
ReadOnlySpan<byte> data)
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{
int outSize = GetTextureSize(
width,
height,
depth,
levels,
layers,
blockWidth,
blockHeight,
bytesPerPixel);
Span<byte> output = new byte[outSize];
int outOffs = 0;
int mipGobBlocksInY = gobBlocksInY;
int mipGobBlocksInZ = gobBlocksInZ;
int gobWidth = (GobStride / bytesPerPixel) * gobBlocksInTileX;
int gobHeight = gobBlocksInY * GobHeight;
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for (int level = 0; level < levels; level++)
{
int w = Math.Max(1, width >> level);
int h = Math.Max(1, height >> level);
int d = Math.Max(1, depth >> level);
w = BitUtils.DivRoundUp(w, blockWidth);
h = BitUtils.DivRoundUp(h, blockHeight);
while (h <= (mipGobBlocksInY >> 1) * GobHeight && mipGobBlocksInY != 1)
{
mipGobBlocksInY >>= 1;
}
while (d <= (mipGobBlocksInZ >> 1) && mipGobBlocksInZ != 1)
{
mipGobBlocksInZ >>= 1;
}
int strideTrunc = BitUtils.AlignDown(w * bytesPerPixel, 16);
int strideTrunc64 = BitUtils.AlignDown(w * bytesPerPixel, 64);
int xStart = strideTrunc / bytesPerPixel;
int stride = BitUtils.AlignUp(w * bytesPerPixel, HostStrideAlignment);
int outStrideGap = stride - w * bytesPerPixel;
int alignment = gobWidth;
if (d < gobBlocksInZ || w <= gobWidth || h <= gobHeight)
{
alignment = GobStride / bytesPerPixel;
}
int wAligned = BitUtils.AlignUp(w, alignment);
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BlockLinearLayout layoutConverter = new BlockLinearLayout(
wAligned,
h,
mipGobBlocksInY,
mipGobBlocksInZ,
bytesPerPixel);
unsafe bool Convert<T>(Span<byte> output, ReadOnlySpan<byte> data) where T : unmanaged
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{
fixed (byte* outputPtr = output, dataPtr = data)
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{
byte* outPtr = outputPtr + outOffs;
for (int layer = 0; layer < layers; layer++)
{
byte* inBaseOffset = dataPtr + (layer * sizeInfo.LayerSize + sizeInfo.GetMipOffset(level));
for (int z = 0; z < d; z++)
{
layoutConverter.SetZ(z);
for (int y = 0; y < h; y++)
{
layoutConverter.SetY(y);
for (int x = 0; x < strideTrunc64; x += 64, outPtr += 64)
{
byte* offset = inBaseOffset + layoutConverter.GetOffsetWithLineOffset64(x);
byte* offset2 = offset + 0x20;
byte* offset3 = offset + 0x100;
byte* offset4 = offset + 0x120;
Vector128<byte> value = *(Vector128<byte>*)offset;
Vector128<byte> value2 = *(Vector128<byte>*)offset2;
Vector128<byte> value3 = *(Vector128<byte>*)offset3;
Vector128<byte> value4 = *(Vector128<byte>*)offset4;
*(Vector128<byte>*)outPtr = value;
*(Vector128<byte>*)(outPtr + 16) = value2;
*(Vector128<byte>*)(outPtr + 32) = value3;
*(Vector128<byte>*)(outPtr + 48) = value4;
}
for (int x = strideTrunc64; x < strideTrunc; x += 16, outPtr += 16)
{
byte* offset = inBaseOffset + layoutConverter.GetOffsetWithLineOffset16(x);
*(Vector128<byte>*)outPtr = *(Vector128<byte>*)offset;
}
for (int x = xStart; x < w; x++, outPtr += bytesPerPixel)
{
byte* offset = inBaseOffset + layoutConverter.GetOffset(x);
*(T*)outPtr = *(T*)offset;
}
outPtr += outStrideGap;
}
}
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}
outOffs += stride * h * d * layers;
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}
return true;
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}
bool _ = bytesPerPixel switch
{
1 => Convert<byte>(output, data),
2 => Convert<ushort>(output, data),
4 => Convert<uint>(output, data),
8 => Convert<ulong>(output, data),
12 => Convert<Bpp12Pixel>(output, data),
16 => Convert<Vector128<byte>>(output, data),
_ => throw new NotSupportedException($"Unable to convert ${bytesPerPixel} bpp pixel format.")
};
}
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return output;
}
public static Span<byte> ConvertLinearStridedToLinear(
int width,
int height,
int blockWidth,
int blockHeight,
int stride,
int bytesPerPixel,
ReadOnlySpan<byte> data)
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{
int w = BitUtils.DivRoundUp(width, blockWidth);
int h = BitUtils.DivRoundUp(height, blockHeight);
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int outStride = BitUtils.AlignUp(w * bytesPerPixel, HostStrideAlignment);
int lineSize = Math.Min(stride, outStride);
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Span<byte> output = new byte[h * outStride];
int outOffs = 0;
int inOffs = 0;
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for (int y = 0; y < h; y++)
{
data.Slice(inOffs, lineSize).CopyTo(output.Slice(outOffs, lineSize));
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inOffs += stride;
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outOffs += outStride;
}
return output;
}
public static void ConvertLinearToBlockLinear(
Span<byte> dst,
int width,
int height,
int stride,
int bytesPerPixel,
int gobBlocksInY,
ReadOnlySpan<byte> data)
{
int gobHeight = gobBlocksInY * GobHeight;
int strideTrunc = BitUtils.AlignDown(width * bytesPerPixel, 16);
int strideTrunc64 = BitUtils.AlignDown(width * bytesPerPixel, 64);
int xStart = strideTrunc / bytesPerPixel;
int inStrideGap = stride - width * bytesPerPixel;
int alignment = GobStride / bytesPerPixel;
int wAligned = BitUtils.AlignUp(width, alignment);
BlockLinearLayout layoutConverter = new BlockLinearLayout(wAligned, height, gobBlocksInY, 1, bytesPerPixel);
unsafe bool Convert<T>(Span<byte> output, ReadOnlySpan<byte> data) where T : unmanaged
{
fixed (byte* outputPtr = output, dataPtr = data)
{
byte* inPtr = dataPtr;
for (int y = 0; y < height; y++)
{
layoutConverter.SetY(y);
for (int x = 0; x < strideTrunc64; x += 64, inPtr += 64)
{
byte* offset = outputPtr + layoutConverter.GetOffsetWithLineOffset64(x);
byte* offset2 = offset + 0x20;
byte* offset3 = offset + 0x100;
byte* offset4 = offset + 0x120;
Vector128<byte> value = *(Vector128<byte>*)inPtr;
Vector128<byte> value2 = *(Vector128<byte>*)(inPtr + 16);
Vector128<byte> value3 = *(Vector128<byte>*)(inPtr + 32);
Vector128<byte> value4 = *(Vector128<byte>*)(inPtr + 48);
*(Vector128<byte>*)offset = value;
*(Vector128<byte>*)offset2 = value2;
*(Vector128<byte>*)offset3 = value3;
*(Vector128<byte>*)offset4 = value4;
}
for (int x = strideTrunc64; x < strideTrunc; x += 16, inPtr += 16)
{
byte* offset = outputPtr + layoutConverter.GetOffsetWithLineOffset16(x);
*(Vector128<byte>*)offset = *(Vector128<byte>*)inPtr;
}
for (int x = xStart; x < width; x++, inPtr += bytesPerPixel)
{
byte* offset = outputPtr + layoutConverter.GetOffset(x);
*(T*)offset = *(T*)inPtr;
}
inPtr += inStrideGap;
}
}
return true;
}
bool _ = bytesPerPixel switch
{
1 => Convert<byte>(dst, data),
2 => Convert<ushort>(dst, data),
4 => Convert<uint>(dst, data),
8 => Convert<ulong>(dst, data),
12 => Convert<Bpp12Pixel>(dst, data),
16 => Convert<Vector128<byte>>(dst, data),
_ => throw new NotSupportedException($"Unable to convert ${bytesPerPixel} bpp pixel format.")
};
}
public static ReadOnlySpan<byte> ConvertLinearToBlockLinear(
Span<byte> output,
int width,
int height,
int depth,
int levels,
int layers,
int blockWidth,
int blockHeight,
int bytesPerPixel,
int gobBlocksInY,
int gobBlocksInZ,
int gobBlocksInTileX,
SizeInfo sizeInfo,
ReadOnlySpan<byte> data)
{
if (output.Length == 0)
{
output = new byte[sizeInfo.TotalSize];
}
int inOffs = 0;
int mipGobBlocksInY = gobBlocksInY;
int mipGobBlocksInZ = gobBlocksInZ;
int gobWidth = (GobStride / bytesPerPixel) * gobBlocksInTileX;
int gobHeight = gobBlocksInY * GobHeight;
for (int level = 0; level < levels; level++)
{
int w = Math.Max(1, width >> level);
int h = Math.Max(1, height >> level);
int d = Math.Max(1, depth >> level);
w = BitUtils.DivRoundUp(w, blockWidth);
h = BitUtils.DivRoundUp(h, blockHeight);
while (h <= (mipGobBlocksInY >> 1) * GobHeight && mipGobBlocksInY != 1)
{
mipGobBlocksInY >>= 1;
}
while (d <= (mipGobBlocksInZ >> 1) && mipGobBlocksInZ != 1)
{
mipGobBlocksInZ >>= 1;
}
int strideTrunc = BitUtils.AlignDown(w * bytesPerPixel, 16);
int strideTrunc64 = BitUtils.AlignDown(w * bytesPerPixel, 64);
int xStart = strideTrunc / bytesPerPixel;
int stride = BitUtils.AlignUp(w * bytesPerPixel, HostStrideAlignment);
int inStrideGap = stride - w * bytesPerPixel;
int alignment = gobWidth;
if (d < gobBlocksInZ || w <= gobWidth || h <= gobHeight)
{
alignment = GobStride / bytesPerPixel;
}
int wAligned = BitUtils.AlignUp(w, alignment);
BlockLinearLayout layoutConverter = new BlockLinearLayout(
wAligned,
h,
mipGobBlocksInY,
mipGobBlocksInZ,
bytesPerPixel);
unsafe bool Convert<T>(Span<byte> output, ReadOnlySpan<byte> data) where T : unmanaged
{
fixed (byte* outputPtr = output, dataPtr = data)
{
byte* inPtr = dataPtr + inOffs;
for (int layer = 0; layer < layers; layer++)
{
byte* outBaseOffset = outputPtr + (layer * sizeInfo.LayerSize + sizeInfo.GetMipOffset(level));
for (int z = 0; z < d; z++)
{
layoutConverter.SetZ(z);
for (int y = 0; y < h; y++)
{
layoutConverter.SetY(y);
for (int x = 0; x < strideTrunc64; x += 64, inPtr += 64)
{
byte* offset = outBaseOffset + layoutConverter.GetOffsetWithLineOffset64(x);
byte* offset2 = offset + 0x20;
byte* offset3 = offset + 0x100;
byte* offset4 = offset + 0x120;
Vector128<byte> value = *(Vector128<byte>*)inPtr;
Vector128<byte> value2 = *(Vector128<byte>*)(inPtr + 16);
Vector128<byte> value3 = *(Vector128<byte>*)(inPtr + 32);
Vector128<byte> value4 = *(Vector128<byte>*)(inPtr + 48);
*(Vector128<byte>*)offset = value;
*(Vector128<byte>*)offset2 = value2;
*(Vector128<byte>*)offset3 = value3;
*(Vector128<byte>*)offset4 = value4;
}
for (int x = strideTrunc64; x < strideTrunc; x += 16, inPtr += 16)
{
byte* offset = outBaseOffset + layoutConverter.GetOffsetWithLineOffset16(x);
*(Vector128<byte>*)offset = *(Vector128<byte>*)inPtr;
}
for (int x = xStart; x < w; x++, inPtr += bytesPerPixel)
{
byte* offset = outBaseOffset + layoutConverter.GetOffset(x);
*(T*)offset = *(T*)inPtr;
}
inPtr += inStrideGap;
}
}
}
inOffs += stride * h * d * layers;
}
return true;
}
bool _ = bytesPerPixel switch
{
1 => Convert<byte>(output, data),
2 => Convert<ushort>(output, data),
4 => Convert<uint>(output, data),
8 => Convert<ulong>(output, data),
12 => Convert<Bpp12Pixel>(output, data),
16 => Convert<Vector128<byte>>(output, data),
_ => throw new NotSupportedException($"Unable to convert ${bytesPerPixel} bpp pixel format.")
};
}
return output;
}
public static ReadOnlySpan<byte> ConvertLinearToLinearStrided(
Span<byte> output,
int width,
int height,
int blockWidth,
int blockHeight,
int stride,
int bytesPerPixel,
ReadOnlySpan<byte> data)
{
int w = BitUtils.DivRoundUp(width, blockWidth);
int h = BitUtils.DivRoundUp(height, blockHeight);
int inStride = BitUtils.AlignUp(w * bytesPerPixel, HostStrideAlignment);
int lineSize = width * bytesPerPixel;
if (inStride == stride)
{
if (output.Length != 0)
{
data.CopyTo(output);
return output;
}
else
{
return data;
}
}
if (output.Length == 0)
{
output = new byte[h * stride];
}
int inOffs = 0;
int outOffs = 0;
for (int y = 0; y < h; y++)
{
data.Slice(inOffs, lineSize).CopyTo(output.Slice(outOffs, lineSize));
inOffs += inStride;
outOffs += stride;
}
return output;
}
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private static int GetTextureSize(
int width,
int height,
int depth,
int levels,
int layers,
int blockWidth,
int blockHeight,
int bytesPerPixel)
{
int layerSize = 0;
for (int level = 0; level < levels; level++)
{
int w = Math.Max(1, width >> level);
int h = Math.Max(1, height >> level);
int d = Math.Max(1, depth >> level);
w = BitUtils.DivRoundUp(w, blockWidth);
h = BitUtils.DivRoundUp(h, blockHeight);
int stride = BitUtils.AlignUp(w * bytesPerPixel, HostStrideAlignment);
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layerSize += stride * h * d;
}
return layerSize * layers;
}
}
}