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authorTSR Berry <20988865+TSRBerry@users.noreply.github.com>2023-04-08 01:22:00 +0200
committerMary <thog@protonmail.com>2023-04-27 23:51:14 +0200
commitcee712105850ac3385cd0091a923438167433f9f (patch)
tree4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/Ryujinx.Graphics.Vic/Image/SurfaceWriter.cs
parentcd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff)
Move solution and projects to src
Diffstat (limited to 'src/Ryujinx.Graphics.Vic/Image/SurfaceWriter.cs')
-rw-r--r--src/Ryujinx.Graphics.Vic/Image/SurfaceWriter.cs667
1 files changed, 667 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.Vic/Image/SurfaceWriter.cs b/src/Ryujinx.Graphics.Vic/Image/SurfaceWriter.cs
new file mode 100644
index 00000000..37d261f9
--- /dev/null
+++ b/src/Ryujinx.Graphics.Vic/Image/SurfaceWriter.cs
@@ -0,0 +1,667 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.Texture;
+using Ryujinx.Graphics.Vic.Types;
+using System;
+using System.Runtime.Intrinsics;
+using System.Runtime.Intrinsics.Arm;
+using System.Runtime.Intrinsics.X86;
+using static Ryujinx.Graphics.Vic.Image.SurfaceCommon;
+
+namespace Ryujinx.Graphics.Vic.Image
+{
+ class SurfaceWriter
+ {
+ public static void Write(ResourceManager rm, Surface input, ref OutputSurfaceConfig config, ref PlaneOffsets offsets)
+ {
+ switch (config.OutPixelFormat)
+ {
+ case PixelFormat.A8B8G8R8:
+ case PixelFormat.X8B8G8R8:
+ WriteA8B8G8R8(rm, input, ref config, ref offsets);
+ break;
+ case PixelFormat.A8R8G8B8:
+ WriteA8R8G8B8(rm, input, ref config, ref offsets);
+ break;
+ case PixelFormat.Y8___V8U8_N420:
+ WriteNv12(rm, input, ref config, ref offsets);
+ break;
+ default:
+ Logger.Error?.Print(LogClass.Vic, $"Unsupported pixel format \"{config.OutPixelFormat}\".");
+ break;
+ }
+ }
+
+ private unsafe static void WriteA8B8G8R8(ResourceManager rm, Surface input, ref OutputSurfaceConfig config, ref PlaneOffsets offsets)
+ {
+ int width = input.Width;
+ int height = input.Height;
+ int stride = GetPitch(width, 4);
+
+ int dstIndex = rm.BufferPool.Rent(height * stride, out Span<byte> dst);
+
+ if (Sse2.IsSupported)
+ {
+ int widthTrunc = width & ~7;
+ int strideGap = stride - width * 4;
+
+ fixed (Pixel* srcPtr = input.Data)
+ {
+ Pixel* ip = srcPtr;
+
+ fixed (byte* dstPtr = dst)
+ {
+ byte* op = dstPtr;
+
+ for (int y = 0; y < height; y++, ip += input.Width)
+ {
+ int x = 0;
+
+ for (; x < widthTrunc; x += 8)
+ {
+ Vector128<ushort> pixel12 = Sse2.LoadVector128((ushort*)(ip + (uint)x));
+ Vector128<ushort> pixel34 = Sse2.LoadVector128((ushort*)(ip + (uint)x + 2));
+ Vector128<ushort> pixel56 = Sse2.LoadVector128((ushort*)(ip + (uint)x + 4));
+ Vector128<ushort> pixel78 = Sse2.LoadVector128((ushort*)(ip + (uint)x + 6));
+
+ pixel12 = Sse2.ShiftRightLogical(pixel12, 2);
+ pixel34 = Sse2.ShiftRightLogical(pixel34, 2);
+ pixel56 = Sse2.ShiftRightLogical(pixel56, 2);
+ pixel78 = Sse2.ShiftRightLogical(pixel78, 2);
+
+ Vector128<byte> pixel1234 = Sse2.PackUnsignedSaturate(pixel12.AsInt16(), pixel34.AsInt16());
+ Vector128<byte> pixel5678 = Sse2.PackUnsignedSaturate(pixel56.AsInt16(), pixel78.AsInt16());
+
+ Sse2.Store(op + 0x00, pixel1234);
+ Sse2.Store(op + 0x10, pixel5678);
+
+ op += 0x20;
+ }
+
+ for (; x < width; x++)
+ {
+ Pixel* px = ip + (uint)x;
+
+ *(op + 0) = Downsample(px->R);
+ *(op + 1) = Downsample(px->G);
+ *(op + 2) = Downsample(px->B);
+ *(op + 3) = Downsample(px->A);
+
+ op += 4;
+ }
+
+ op += strideGap;
+ }
+ }
+ }
+ }
+ else if (AdvSimd.IsSupported)
+ {
+ int widthTrunc = width & ~7;
+ int strideGap = stride - width * 4;
+
+ fixed (Pixel* srcPtr = input.Data)
+ {
+ Pixel* ip = srcPtr;
+
+ fixed (byte* dstPtr = dst)
+ {
+ byte* op = dstPtr;
+
+ for (int y = 0; y < height; y++, ip += input.Width)
+ {
+ int x = 0;
+
+ for (; x < widthTrunc; x += 8)
+ {
+ Vector128<ushort> pixel12 = AdvSimd.LoadVector128((ushort*)(ip + (uint)x));
+ Vector128<ushort> pixel34 = AdvSimd.LoadVector128((ushort*)(ip + (uint)x + 2));
+ Vector128<ushort> pixel56 = AdvSimd.LoadVector128((ushort*)(ip + (uint)x + 4));
+ Vector128<ushort> pixel78 = AdvSimd.LoadVector128((ushort*)(ip + (uint)x + 6));
+
+ pixel12 = AdvSimd.ShiftRightLogical(pixel12, 2);
+ pixel34 = AdvSimd.ShiftRightLogical(pixel34, 2);
+ pixel56 = AdvSimd.ShiftRightLogical(pixel56, 2);
+ pixel78 = AdvSimd.ShiftRightLogical(pixel78, 2);
+
+ Vector64<byte> lower12 = AdvSimd.ExtractNarrowingLower(pixel12.AsUInt16());
+ Vector64<byte> lower56 = AdvSimd.ExtractNarrowingLower(pixel56.AsUInt16());
+
+ Vector128<byte> pixel1234 = AdvSimd.ExtractNarrowingUpper(lower12, pixel34.AsUInt16());
+ Vector128<byte> pixel5678 = AdvSimd.ExtractNarrowingUpper(lower56, pixel78.AsUInt16());
+
+ AdvSimd.Store(op + 0x00, pixel1234);
+ AdvSimd.Store(op + 0x10, pixel5678);
+
+ op += 0x20;
+ }
+
+ for (; x < width; x++)
+ {
+ Pixel* px = ip + (uint)x;
+
+ *(op + 0) = Downsample(px->R);
+ *(op + 1) = Downsample(px->G);
+ *(op + 2) = Downsample(px->B);
+ *(op + 3) = Downsample(px->A);
+
+ op += 4;
+ }
+
+ op += strideGap;
+ }
+ }
+ }
+ }
+ else
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int baseOffs = y * stride;
+
+ for (int x = 0; x < width; x++)
+ {
+ int offs = baseOffs + x * 4;
+
+ dst[offs + 0] = Downsample(input.GetR(x, y));
+ dst[offs + 1] = Downsample(input.GetG(x, y));
+ dst[offs + 2] = Downsample(input.GetB(x, y));
+ dst[offs + 3] = Downsample(input.GetA(x, y));
+ }
+ }
+ }
+
+ bool outLinear = config.OutBlkKind == 0;
+
+ int gobBlocksInY = 1 << config.OutBlkHeight;
+
+ WriteBuffer(rm, dst, offsets.LumaOffset, outLinear, width, height, 4, gobBlocksInY);
+
+ rm.BufferPool.Return(dstIndex);
+ }
+
+ private unsafe static void WriteA8R8G8B8(ResourceManager rm, Surface input, ref OutputSurfaceConfig config, ref PlaneOffsets offsets)
+ {
+ int width = input.Width;
+ int height = input.Height;
+ int stride = GetPitch(width, 4);
+
+ int dstIndex = rm.BufferPool.Rent(height * stride, out Span<byte> dst);
+
+ if (Ssse3.IsSupported)
+ {
+ Vector128<byte> shuffleMask = Vector128.Create(
+ (byte)2, (byte)1, (byte)0, (byte)3,
+ (byte)6, (byte)5, (byte)4, (byte)7,
+ (byte)10, (byte)9, (byte)8, (byte)11,
+ (byte)14, (byte)13, (byte)12, (byte)15);
+
+ int widthTrunc = width & ~7;
+ int strideGap = stride - width * 4;
+
+ fixed (Pixel* srcPtr = input.Data)
+ {
+ Pixel* ip = srcPtr;
+
+ fixed (byte* dstPtr = dst)
+ {
+ byte* op = dstPtr;
+
+ for (int y = 0; y < height; y++, ip += input.Width)
+ {
+ int x = 0;
+
+ for (; x < widthTrunc; x += 8)
+ {
+ Vector128<ushort> pixel12 = Sse2.LoadVector128((ushort*)(ip + (uint)x));
+ Vector128<ushort> pixel34 = Sse2.LoadVector128((ushort*)(ip + (uint)x + 2));
+ Vector128<ushort> pixel56 = Sse2.LoadVector128((ushort*)(ip + (uint)x + 4));
+ Vector128<ushort> pixel78 = Sse2.LoadVector128((ushort*)(ip + (uint)x + 6));
+
+ pixel12 = Sse2.ShiftRightLogical(pixel12, 2);
+ pixel34 = Sse2.ShiftRightLogical(pixel34, 2);
+ pixel56 = Sse2.ShiftRightLogical(pixel56, 2);
+ pixel78 = Sse2.ShiftRightLogical(pixel78, 2);
+
+ Vector128<byte> pixel1234 = Sse2.PackUnsignedSaturate(pixel12.AsInt16(), pixel34.AsInt16());
+ Vector128<byte> pixel5678 = Sse2.PackUnsignedSaturate(pixel56.AsInt16(), pixel78.AsInt16());
+
+ pixel1234 = Ssse3.Shuffle(pixel1234, shuffleMask);
+ pixel5678 = Ssse3.Shuffle(pixel5678, shuffleMask);
+
+ Sse2.Store(op + 0x00, pixel1234);
+ Sse2.Store(op + 0x10, pixel5678);
+
+ op += 0x20;
+ }
+
+ for (; x < width; x++)
+ {
+ Pixel* px = ip + (uint)x;
+
+ *(op + 0) = Downsample(px->B);
+ *(op + 1) = Downsample(px->G);
+ *(op + 2) = Downsample(px->R);
+ *(op + 3) = Downsample(px->A);
+
+ op += 4;
+ }
+
+ op += strideGap;
+ }
+ }
+ }
+ }
+ else
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int baseOffs = y * stride;
+
+ for (int x = 0; x < width; x++)
+ {
+ int offs = baseOffs + x * 4;
+
+ dst[offs + 0] = Downsample(input.GetB(x, y));
+ dst[offs + 1] = Downsample(input.GetG(x, y));
+ dst[offs + 2] = Downsample(input.GetR(x, y));
+ dst[offs + 3] = Downsample(input.GetA(x, y));
+ }
+ }
+ }
+
+ bool outLinear = config.OutBlkKind == 0;
+
+ int gobBlocksInY = 1 << config.OutBlkHeight;
+
+ WriteBuffer(rm, dst, offsets.LumaOffset, outLinear, width, height, 4, gobBlocksInY);
+
+ rm.BufferPool.Return(dstIndex);
+ }
+
+ private unsafe static void WriteNv12(ResourceManager rm, Surface input, ref OutputSurfaceConfig config, ref PlaneOffsets offsets)
+ {
+ int gobBlocksInY = 1 << config.OutBlkHeight;
+
+ bool outLinear = config.OutBlkKind == 0;
+
+ int width = Math.Min(config.OutLumaWidth + 1, input.Width);
+ int height = Math.Min(config.OutLumaHeight + 1, input.Height);
+ int yStride = GetPitch(config.OutLumaWidth + 1, 1);
+
+ int dstYIndex = rm.BufferPool.Rent((config.OutLumaHeight + 1) * yStride, out Span<byte> dstY);
+
+ if (Sse41.IsSupported)
+ {
+ Vector128<ushort> mask = Vector128.Create(0xffffUL).AsUInt16();
+
+ int widthTrunc = width & ~0xf;
+ int strideGap = yStride - width;
+
+ fixed (Pixel* srcPtr = input.Data)
+ {
+ Pixel* ip = srcPtr;
+
+ fixed (byte* dstPtr = dstY)
+ {
+ byte* op = dstPtr;
+
+ for (int y = 0; y < height; y++, ip += input.Width)
+ {
+ int x = 0;
+
+ for (; x < widthTrunc; x += 16)
+ {
+ byte* baseOffset = (byte*)(ip + (ulong)(uint)x);
+
+ Vector128<ushort> pixelp1 = Sse2.LoadVector128((ushort*)baseOffset);
+ Vector128<ushort> pixelp2 = Sse2.LoadVector128((ushort*)(baseOffset + 0x10));
+ Vector128<ushort> pixelp3 = Sse2.LoadVector128((ushort*)(baseOffset + 0x20));
+ Vector128<ushort> pixelp4 = Sse2.LoadVector128((ushort*)(baseOffset + 0x30));
+ Vector128<ushort> pixelp5 = Sse2.LoadVector128((ushort*)(baseOffset + 0x40));
+ Vector128<ushort> pixelp6 = Sse2.LoadVector128((ushort*)(baseOffset + 0x50));
+ Vector128<ushort> pixelp7 = Sse2.LoadVector128((ushort*)(baseOffset + 0x60));
+ Vector128<ushort> pixelp8 = Sse2.LoadVector128((ushort*)(baseOffset + 0x70));
+
+ pixelp1 = Sse2.And(pixelp1, mask);
+ pixelp2 = Sse2.And(pixelp2, mask);
+ pixelp3 = Sse2.And(pixelp3, mask);
+ pixelp4 = Sse2.And(pixelp4, mask);
+ pixelp5 = Sse2.And(pixelp5, mask);
+ pixelp6 = Sse2.And(pixelp6, mask);
+ pixelp7 = Sse2.And(pixelp7, mask);
+ pixelp8 = Sse2.And(pixelp8, mask);
+
+ Vector128<ushort> pixelq1 = Sse41.PackUnsignedSaturate(pixelp1.AsInt32(), pixelp2.AsInt32());
+ Vector128<ushort> pixelq2 = Sse41.PackUnsignedSaturate(pixelp3.AsInt32(), pixelp4.AsInt32());
+ Vector128<ushort> pixelq3 = Sse41.PackUnsignedSaturate(pixelp5.AsInt32(), pixelp6.AsInt32());
+ Vector128<ushort> pixelq4 = Sse41.PackUnsignedSaturate(pixelp7.AsInt32(), pixelp8.AsInt32());
+
+ pixelq1 = Sse41.PackUnsignedSaturate(pixelq1.AsInt32(), pixelq2.AsInt32());
+ pixelq2 = Sse41.PackUnsignedSaturate(pixelq3.AsInt32(), pixelq4.AsInt32());
+
+ pixelq1 = Sse2.ShiftRightLogical(pixelq1, 2);
+ pixelq2 = Sse2.ShiftRightLogical(pixelq2, 2);
+
+ Vector128<byte> pixel = Sse2.PackUnsignedSaturate(pixelq1.AsInt16(), pixelq2.AsInt16());
+
+ Sse2.Store(op, pixel);
+
+ op += 0x10;
+ }
+
+ for (; x < width; x++)
+ {
+ Pixel* px = ip + (uint)x;
+
+ *op++ = Downsample(px->R);
+ }
+
+ op += strideGap;
+ }
+ }
+ }
+ }
+ else if (AdvSimd.IsSupported)
+ {
+ Vector128<ushort> mask = Vector128.Create(0xffffUL).AsUInt16();
+
+ int widthTrunc = width & ~0xf;
+ int strideGap = yStride - width;
+
+ fixed (Pixel* srcPtr = input.Data)
+ {
+ Pixel* ip = srcPtr;
+
+ fixed (byte* dstPtr = dstY)
+ {
+ byte* op = dstPtr;
+
+ for (int y = 0; y < height; y++, ip += input.Width)
+ {
+ int x = 0;
+
+ for (; x < widthTrunc; x += 16)
+ {
+ byte* baseOffset = (byte*)(ip + (ulong)(uint)x);
+
+ Vector128<ushort> pixelp1 = AdvSimd.LoadVector128((ushort*)baseOffset);
+ Vector128<ushort> pixelp2 = AdvSimd.LoadVector128((ushort*)(baseOffset + 0x10));
+ Vector128<ushort> pixelp3 = AdvSimd.LoadVector128((ushort*)(baseOffset + 0x20));
+ Vector128<ushort> pixelp4 = AdvSimd.LoadVector128((ushort*)(baseOffset + 0x30));
+ Vector128<ushort> pixelp5 = AdvSimd.LoadVector128((ushort*)(baseOffset + 0x40));
+ Vector128<ushort> pixelp6 = AdvSimd.LoadVector128((ushort*)(baseOffset + 0x50));
+ Vector128<ushort> pixelp7 = AdvSimd.LoadVector128((ushort*)(baseOffset + 0x60));
+ Vector128<ushort> pixelp8 = AdvSimd.LoadVector128((ushort*)(baseOffset + 0x70));
+
+ pixelp1 = AdvSimd.And(pixelp1, mask);
+ pixelp2 = AdvSimd.And(pixelp2, mask);
+ pixelp3 = AdvSimd.And(pixelp3, mask);
+ pixelp4 = AdvSimd.And(pixelp4, mask);
+ pixelp5 = AdvSimd.And(pixelp5, mask);
+ pixelp6 = AdvSimd.And(pixelp6, mask);
+ pixelp7 = AdvSimd.And(pixelp7, mask);
+ pixelp8 = AdvSimd.And(pixelp8, mask);
+
+ Vector64<ushort> lowerp1 = AdvSimd.ExtractNarrowingLower(pixelp1.AsUInt32());
+ Vector64<ushort> lowerp3 = AdvSimd.ExtractNarrowingLower(pixelp3.AsUInt32());
+ Vector64<ushort> lowerp5 = AdvSimd.ExtractNarrowingLower(pixelp5.AsUInt32());
+ Vector64<ushort> lowerp7 = AdvSimd.ExtractNarrowingLower(pixelp7.AsUInt32());
+
+ Vector128<ushort> pixelq1 = AdvSimd.ExtractNarrowingUpper(lowerp1, pixelp2.AsUInt32());
+ Vector128<ushort> pixelq2 = AdvSimd.ExtractNarrowingUpper(lowerp3, pixelp4.AsUInt32());
+ Vector128<ushort> pixelq3 = AdvSimd.ExtractNarrowingUpper(lowerp5, pixelp6.AsUInt32());
+ Vector128<ushort> pixelq4 = AdvSimd.ExtractNarrowingUpper(lowerp7, pixelp8.AsUInt32());
+
+ Vector64<ushort> lowerq1 = AdvSimd.ExtractNarrowingLower(pixelq1.AsUInt32());
+ Vector64<ushort> lowerq3 = AdvSimd.ExtractNarrowingLower(pixelq3.AsUInt32());
+
+ pixelq1 = AdvSimd.ExtractNarrowingUpper(lowerq1, pixelq2.AsUInt32());
+ pixelq2 = AdvSimd.ExtractNarrowingUpper(lowerq3, pixelq4.AsUInt32());
+
+ pixelq1 = AdvSimd.ShiftRightLogical(pixelq1, 2);
+ pixelq2 = AdvSimd.ShiftRightLogical(pixelq2, 2);
+
+ Vector64<byte> pixelLower = AdvSimd.ExtractNarrowingLower(pixelq1.AsUInt16());
+
+ Vector128<byte> pixel = AdvSimd.ExtractNarrowingUpper(pixelLower, pixelq2.AsUInt16());
+
+ AdvSimd.Store(op, pixel);
+
+ op += 0x10;
+ }
+
+ for (; x < width; x++)
+ {
+ Pixel* px = ip + (uint)x;
+
+ *op++ = Downsample(px->R);
+ }
+
+ op += strideGap;
+ }
+ }
+ }
+ }
+ else
+ {
+ for (int y = 0; y < height; y++)
+ {
+ for (int x = 0; x < width; x++)
+ {
+ dstY[y * yStride + x] = Downsample(input.GetR(x, y));
+ }
+ }
+ }
+
+ WriteBuffer(
+ rm,
+ dstY,
+ offsets.LumaOffset,
+ outLinear,
+ config.OutLumaWidth + 1,
+ config.OutLumaHeight + 1,
+ 1,
+ gobBlocksInY);
+
+ rm.BufferPool.Return(dstYIndex);
+
+ int uvWidth = Math.Min(config.OutChromaWidth + 1, (width + 1) >> 1);
+ int uvHeight = Math.Min(config.OutChromaHeight + 1, (height + 1) >> 1);
+ int uvStride = GetPitch(config.OutChromaWidth + 1, 2);
+
+ int dstUvIndex = rm.BufferPool.Rent((config.OutChromaHeight + 1) * uvStride, out Span<byte> dstUv);
+
+ if (Sse2.IsSupported)
+ {
+ int widthTrunc = uvWidth & ~7;
+ int strideGap = uvStride - uvWidth * 2;
+
+ fixed (Pixel* srcPtr = input.Data)
+ {
+ Pixel* ip = srcPtr;
+
+ fixed (byte* dstPtr = dstUv)
+ {
+ byte* op = dstPtr;
+
+ for (int y = 0; y < uvHeight; y++, ip += input.Width * 2)
+ {
+ int x = 0;
+
+ for (; x < widthTrunc; x += 8)
+ {
+ byte* baseOffset = (byte*)ip + (ulong)(uint)x * 16;
+
+ Vector128<uint> pixel1 = Sse2.LoadScalarVector128((uint*)(baseOffset + 0x02));
+ Vector128<uint> pixel2 = Sse2.LoadScalarVector128((uint*)(baseOffset + 0x12));
+ Vector128<uint> pixel3 = Sse2.LoadScalarVector128((uint*)(baseOffset + 0x22));
+ Vector128<uint> pixel4 = Sse2.LoadScalarVector128((uint*)(baseOffset + 0x32));
+ Vector128<uint> pixel5 = Sse2.LoadScalarVector128((uint*)(baseOffset + 0x42));
+ Vector128<uint> pixel6 = Sse2.LoadScalarVector128((uint*)(baseOffset + 0x52));
+ Vector128<uint> pixel7 = Sse2.LoadScalarVector128((uint*)(baseOffset + 0x62));
+ Vector128<uint> pixel8 = Sse2.LoadScalarVector128((uint*)(baseOffset + 0x72));
+
+ Vector128<uint> pixel12 = Sse2.UnpackLow(pixel1, pixel2);
+ Vector128<uint> pixel34 = Sse2.UnpackLow(pixel3, pixel4);
+ Vector128<uint> pixel56 = Sse2.UnpackLow(pixel5, pixel6);
+ Vector128<uint> pixel78 = Sse2.UnpackLow(pixel7, pixel8);
+
+ Vector128<ulong> pixel1234 = Sse2.UnpackLow(pixel12.AsUInt64(), pixel34.AsUInt64());
+ Vector128<ulong> pixel5678 = Sse2.UnpackLow(pixel56.AsUInt64(), pixel78.AsUInt64());
+
+ pixel1234 = Sse2.ShiftRightLogical(pixel1234, 2);
+ pixel5678 = Sse2.ShiftRightLogical(pixel5678, 2);
+
+ Vector128<byte> pixel = Sse2.PackUnsignedSaturate(pixel1234.AsInt16(), pixel5678.AsInt16());
+
+ Sse2.Store(op, pixel);
+
+ op += 0x10;
+ }
+
+ for (; x < uvWidth; x++)
+ {
+ Pixel* px = ip + (uint)(x << 1);
+
+ *op++ = Downsample(px->G);
+ *op++ = Downsample(px->B);
+ }
+
+ op += strideGap;
+ }
+ }
+ }
+ }
+ else if (AdvSimd.Arm64.IsSupported)
+ {
+ int widthTrunc = uvWidth & ~7;
+ int strideGap = uvStride - uvWidth * 2;
+
+ fixed (Pixel* srcPtr = input.Data)
+ {
+ Pixel* ip = srcPtr;
+
+ fixed (byte* dstPtr = dstUv)
+ {
+ byte* op = dstPtr;
+
+ for (int y = 0; y < uvHeight; y++, ip += input.Width * 2)
+ {
+ int x = 0;
+
+ for (; x < widthTrunc; x += 8)
+ {
+ byte* baseOffset = (byte*)ip + (ulong)(uint)x * 16;
+
+ Vector128<uint> pixel1 = AdvSimd.LoadAndReplicateToVector128((uint*)(baseOffset + 0x02));
+ Vector128<uint> pixel2 = AdvSimd.LoadAndReplicateToVector128((uint*)(baseOffset + 0x12));
+ Vector128<uint> pixel3 = AdvSimd.LoadAndReplicateToVector128((uint*)(baseOffset + 0x22));
+ Vector128<uint> pixel4 = AdvSimd.LoadAndReplicateToVector128((uint*)(baseOffset + 0x32));
+ Vector128<uint> pixel5 = AdvSimd.LoadAndReplicateToVector128((uint*)(baseOffset + 0x42));
+ Vector128<uint> pixel6 = AdvSimd.LoadAndReplicateToVector128((uint*)(baseOffset + 0x52));
+ Vector128<uint> pixel7 = AdvSimd.LoadAndReplicateToVector128((uint*)(baseOffset + 0x62));
+ Vector128<uint> pixel8 = AdvSimd.LoadAndReplicateToVector128((uint*)(baseOffset + 0x72));
+
+ Vector128<uint> pixel12 = AdvSimd.Arm64.ZipLow(pixel1, pixel2);
+ Vector128<uint> pixel34 = AdvSimd.Arm64.ZipLow(pixel3, pixel4);
+ Vector128<uint> pixel56 = AdvSimd.Arm64.ZipLow(pixel5, pixel6);
+ Vector128<uint> pixel78 = AdvSimd.Arm64.ZipLow(pixel7, pixel8);
+
+ Vector128<ulong> pixel1234 = AdvSimd.Arm64.ZipLow(pixel12.AsUInt64(), pixel34.AsUInt64());
+ Vector128<ulong> pixel5678 = AdvSimd.Arm64.ZipLow(pixel56.AsUInt64(), pixel78.AsUInt64());
+
+ pixel1234 = AdvSimd.ShiftRightLogical(pixel1234, 2);
+ pixel5678 = AdvSimd.ShiftRightLogical(pixel5678, 2);
+
+ Vector64<byte> pixelLower = AdvSimd.ExtractNarrowingLower(pixel1234.AsUInt16());
+
+ Vector128<byte> pixel = AdvSimd.ExtractNarrowingUpper(pixelLower, pixel5678.AsUInt16());
+
+ AdvSimd.Store(op, pixel);
+
+ op += 0x10;
+ }
+
+ for (; x < uvWidth; x++)
+ {
+ Pixel* px = ip + (uint)(x << 1);
+
+ *op++ = Downsample(px->G);
+ *op++ = Downsample(px->B);
+ }
+
+ op += strideGap;
+ }
+ }
+ }
+ }
+ else
+ {
+ for (int y = 0; y < uvHeight; y++)
+ {
+ for (int x = 0; x < uvWidth; x++)
+ {
+ int xx = x << 1;
+ int yy = y << 1;
+
+ int uvOffs = y * uvStride + xx;
+
+ dstUv[uvOffs + 0] = Downsample(input.GetG(xx, yy));
+ dstUv[uvOffs + 1] = Downsample(input.GetB(xx, yy));
+ }
+ }
+ }
+
+ WriteBuffer(
+ rm,
+ dstUv,
+ offsets.ChromaUOffset,
+ outLinear,
+ config.OutChromaWidth + 1,
+ config.OutChromaHeight + 1, 2,
+ gobBlocksInY);
+
+ rm.BufferPool.Return(dstUvIndex);
+ }
+
+ private static void WriteBuffer(
+ ResourceManager rm,
+ ReadOnlySpan<byte> src,
+ uint offset,
+ bool linear,
+ int width,
+ int height,
+ int bytesPerPixel,
+ int gobBlocksInY)
+ {
+ if (linear)
+ {
+ rm.Gmm.WriteMapped(ExtendOffset(offset), src);
+ return;
+ }
+
+ WriteBuffer(rm, src, offset, width, height, bytesPerPixel, gobBlocksInY);
+ }
+
+ private static void WriteBuffer(
+ ResourceManager rm,
+ ReadOnlySpan<byte> src,
+ uint offset,
+ int width,
+ int height,
+ int bytesPerPixel,
+ int gobBlocksInY)
+ {
+ int outSize = GetBlockLinearSize(width, height, bytesPerPixel, gobBlocksInY);
+ int dstStride = GetPitch(width, bytesPerPixel);
+
+ int dstIndex = rm.BufferPool.Rent(outSize, out Span<byte> dst);
+
+ LayoutConverter.ConvertLinearToBlockLinear(dst, width, height, dstStride, bytesPerPixel, gobBlocksInY, src);
+
+ rm.Gmm.WriteMapped(ExtendOffset(offset), dst);
+
+ rm.BufferPool.Return(dstIndex);
+ }
+ }
+}