public static void Write(ResourceManager rm, Surface input, ref OutputSurfaceConfig config, ref PlaneOffsets offsets)
{
switch (config.OutPixelFormat)
{
case PixelFormat.A8B8G8R8:
WriteA8B8G8R8(rm, input, ref config, ref offsets);
break;
case PixelFormat.Y8___V8U8_N420:
WriteNv12(rm, input, ref config, ref offsets);
break;
default:
Logger.PrintError(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
{
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 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
{
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
{
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);
}