mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-17 14:18:44 +02:00
537 lines
18 KiB
C#
537 lines
18 KiB
C#
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using Ryujinx.Graphics.Nvdec.Vp9.Common;
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using Ryujinx.Graphics.Nvdec.Vp9.Types;
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using System;
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using static Ryujinx.Graphics.Nvdec.Vp9.Dsp.InvTxfm;
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namespace Ryujinx.Graphics.Nvdec.Vp9
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{
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internal static class Idct
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{
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private delegate void Transform1D(ReadOnlySpan<int> input, Span<int> output);
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private delegate void HighbdTransform1D(ReadOnlySpan<int> input, Span<int> output, int bd);
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private struct Transform2D
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{
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public Transform1D Cols, Rows; // Vertical and horizontal
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public Transform2D(Transform1D cols, Transform1D rows)
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{
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Cols = cols;
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Rows = rows;
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}
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}
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private struct HighbdTransform2D
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{
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public HighbdTransform1D Cols, Rows; // Vertical and horizontal
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public HighbdTransform2D(HighbdTransform1D cols, HighbdTransform1D rows)
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{
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Cols = cols;
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Rows = rows;
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}
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}
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private static readonly Transform2D[] Iht4 = new Transform2D[]
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{
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new Transform2D(Idct4, Idct4), // DCT_DCT = 0
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new Transform2D(Iadst4, Idct4), // ADST_DCT = 1
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new Transform2D(Idct4, Iadst4), // DCT_ADST = 2
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new Transform2D(Iadst4, Iadst4) // ADST_ADST = 3
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};
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public static void Iht4x416Add(ReadOnlySpan<int> input, Span<byte> dest, int stride, int txType)
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{
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int i, j;
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Span<int> output = stackalloc int[4 * 4];
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Span<int> outptr = output;
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Span<int> tempIn = stackalloc int[4];
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Span<int> tempOut = stackalloc int[4];
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// Inverse transform row vectors
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for (i = 0; i < 4; ++i)
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{
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Iht4[txType].Rows(input, outptr);
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input = input.Slice(4);
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outptr = outptr.Slice(4);
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}
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// Inverse transform column vectors
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for (i = 0; i < 4; ++i)
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{
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for (j = 0; j < 4; ++j)
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{
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tempIn[j] = output[j * 4 + i];
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}
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Iht4[txType].Cols(tempIn, tempOut);
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for (j = 0; j < 4; ++j)
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{
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dest[j * stride + i] = ClipPixelAdd(dest[j * stride + i], BitUtils.RoundPowerOfTwo(tempOut[j], 4));
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}
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}
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}
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private static readonly Transform2D[] Iht8 = new Transform2D[]
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{
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new Transform2D(Idct8, Idct8), // DCT_DCT = 0
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new Transform2D(Iadst8, Idct8), // ADST_DCT = 1
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new Transform2D(Idct8, Iadst8), // DCT_ADST = 2
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new Transform2D(Iadst8, Iadst8) // ADST_ADST = 3
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};
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public static void Iht8x864Add(ReadOnlySpan<int> input, Span<byte> dest, int stride, int txType)
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{
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int i, j;
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Span<int> output = stackalloc int[8 * 8];
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Span<int> outptr = output;
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Span<int> tempIn = stackalloc int[8];
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Span<int> tempOut = stackalloc int[8];
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Transform2D ht = Iht8[txType];
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// Inverse transform row vectors
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for (i = 0; i < 8; ++i)
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{
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ht.Rows(input, outptr);
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input = input.Slice(8);
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outptr = outptr.Slice(8);
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}
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// Inverse transform column vectors
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for (i = 0; i < 8; ++i)
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{
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for (j = 0; j < 8; ++j)
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{
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tempIn[j] = output[j * 8 + i];
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}
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ht.Cols(tempIn, tempOut);
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for (j = 0; j < 8; ++j)
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{
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dest[j * stride + i] = ClipPixelAdd(dest[j * stride + i], BitUtils.RoundPowerOfTwo(tempOut[j], 5));
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}
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}
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}
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private static readonly Transform2D[] Iht16 = new Transform2D[]
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{
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new Transform2D(Idct16, Idct16), // DCT_DCT = 0
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new Transform2D(Iadst16, Idct16), // ADST_DCT = 1
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new Transform2D(Idct16, Iadst16), // DCT_ADST = 2
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new Transform2D(Iadst16, Iadst16) // ADST_ADST = 3
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};
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public static void Iht16x16256Add(ReadOnlySpan<int> input, Span<byte> dest, int stride, int txType)
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{
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int i, j;
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Span<int> output = stackalloc int[16 * 16];
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Span<int> outptr = output;
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Span<int> tempIn = stackalloc int[16];
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Span<int> tempOut = stackalloc int[16];
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Transform2D ht = Iht16[txType];
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// Rows
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for (i = 0; i < 16; ++i)
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{
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ht.Rows(input, outptr);
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input = input.Slice(16);
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outptr = outptr.Slice(16);
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}
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// Columns
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for (i = 0; i < 16; ++i)
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{
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for (j = 0; j < 16; ++j)
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{
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tempIn[j] = output[j * 16 + i];
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}
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ht.Cols(tempIn, tempOut);
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for (j = 0; j < 16; ++j)
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{
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dest[j * stride + i] = ClipPixelAdd(dest[j * stride + i], BitUtils.RoundPowerOfTwo(tempOut[j], 6));
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}
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}
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}
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// Idct
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public static void Idct4x4Add(ReadOnlySpan<int> input, Span<byte> dest, int stride, int eob)
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{
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if (eob > 1)
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{
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Idct4x416Add(input, dest, stride);
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}
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else
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{
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Idct4x41Add(input, dest, stride);
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}
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}
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public static void Iwht4x4Add(ReadOnlySpan<int> input, Span<byte> dest, int stride, int eob)
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{
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if (eob > 1)
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{
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Iwht4x416Add(input, dest, stride);
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}
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else
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{
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Iwht4x41Add(input, dest, stride);
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}
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}
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public static void Idct8x8Add(ReadOnlySpan<int> input, Span<byte> dest, int stride, int eob)
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{
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// If dc is 1, then input[0] is the reconstructed value, do not need
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// dequantization. Also, when dc is 1, dc is counted in eobs, namely eobs >=1.
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// The calculation can be simplified if there are not many non-zero dct
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// coefficients. Use eobs to decide what to do.
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if (eob == 1)
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{
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// DC only DCT coefficient
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Idct8x81Add(input, dest, stride);
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}
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else if (eob <= 12)
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{
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Idct8x812Add(input, dest, stride);
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}
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else
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{
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Idct8x864Add(input, dest, stride);
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}
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}
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public static void Idct16x16Add(ReadOnlySpan<int> input, Span<byte> dest, int stride, int eob)
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{
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/* The calculation can be simplified if there are not many non-zero dct
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* coefficients. Use eobs to separate different cases. */
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if (eob == 1) /* DC only DCT coefficient. */
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{
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Idct16x161Add(input, dest, stride);
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}
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else if (eob <= 10)
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{
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Idct16x1610Add(input, dest, stride);
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}
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else if (eob <= 38)
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{
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Idct16x1638Add(input, dest, stride);
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}
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else
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{
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Idct16x16256Add(input, dest, stride);
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}
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}
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public static void Idct32x32Add(ReadOnlySpan<int> input, Span<byte> dest, int stride, int eob)
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{
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if (eob == 1)
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{
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Idct32x321Add(input, dest, stride);
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}
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else if (eob <= 34)
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{
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// Non-zero coeff only in upper-left 8x8
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Idct32x3234Add(input, dest, stride);
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}
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else if (eob <= 135)
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{
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// Non-zero coeff only in upper-left 16x16
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Idct32x32135Add(input, dest, stride);
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}
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else
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{
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Idct32x321024Add(input, dest, stride);
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}
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}
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// Iht
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public static void Iht4x4Add(TxType txType, ReadOnlySpan<int> input, Span<byte> dest, int stride, int eob)
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{
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if (txType == TxType.DctDct)
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{
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Idct4x4Add(input, dest, stride, eob);
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}
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else
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{
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Iht4x416Add(input, dest, stride, (int)txType);
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}
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}
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public static void Iht8x8Add(TxType txType, ReadOnlySpan<int> input, Span<byte> dest, int stride, int eob)
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{
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if (txType == TxType.DctDct)
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{
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Idct8x8Add(input, dest, stride, eob);
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}
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else
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{
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Iht8x864Add(input, dest, stride, (int)txType);
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}
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}
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public static void Iht16x16Add(TxType txType, ReadOnlySpan<int> input, Span<byte> dest,
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int stride, int eob)
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{
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if (txType == TxType.DctDct)
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{
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Idct16x16Add(input, dest, stride, eob);
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}
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else
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{
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Iht16x16256Add(input, dest, stride, (int)txType);
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}
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}
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private static readonly HighbdTransform2D[] HighbdIht4 = new HighbdTransform2D[]
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{
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new HighbdTransform2D(HighbdIdct4, HighbdIdct4), // DCT_DCT = 0
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new HighbdTransform2D(HighbdIadst4, HighbdIdct4), // ADST_DCT = 1
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new HighbdTransform2D(HighbdIdct4, HighbdIadst4), // DCT_ADST = 2
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new HighbdTransform2D(HighbdIadst4, HighbdIadst4) // ADST_ADST = 3
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};
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public static void HighbdIht4x416Add(ReadOnlySpan<int> input, Span<ushort> dest, int stride, int txType, int bd)
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{
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int i, j;
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Span<int> output = stackalloc int[4 * 4];
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Span<int> outptr = output;
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Span<int> tempIn = stackalloc int[4];
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Span<int> tempOut = stackalloc int[4];
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// Inverse transform row vectors.
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for (i = 0; i < 4; ++i)
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{
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HighbdIht4[txType].Rows(input, outptr, bd);
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input = input.Slice(4);
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outptr = outptr.Slice(4);
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}
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// Inverse transform column vectors.
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for (i = 0; i < 4; ++i)
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{
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for (j = 0; j < 4; ++j)
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{
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tempIn[j] = output[j * 4 + i];
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}
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HighbdIht4[txType].Cols(tempIn, tempOut, bd);
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for (j = 0; j < 4; ++j)
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{
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dest[j * stride + i] = HighbdClipPixelAdd(dest[j * stride + i], BitUtils.RoundPowerOfTwo(tempOut[j], 4), bd);
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}
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}
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}
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private static readonly HighbdTransform2D[] HighIht8 = new HighbdTransform2D[]
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{
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new HighbdTransform2D(HighbdIdct8, HighbdIdct8), // DCT_DCT = 0
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new HighbdTransform2D(HighbdIadst8, HighbdIdct8), // ADST_DCT = 1
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new HighbdTransform2D(HighbdIdct8, HighbdIadst8), // DCT_ADST = 2
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new HighbdTransform2D(HighbdIadst8, HighbdIadst8) // ADST_ADST = 3
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};
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public static void HighbdIht8x864Add(ReadOnlySpan<int> input, Span<ushort> dest, int stride, int txType, int bd)
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{
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int i, j;
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Span<int> output = stackalloc int[8 * 8];
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Span<int> outptr = output;
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Span<int> tempIn = stackalloc int[8];
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Span<int> tempOut = stackalloc int[8];
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HighbdTransform2D ht = HighIht8[txType];
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// Inverse transform row vectors.
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for (i = 0; i < 8; ++i)
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{
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ht.Rows(input, outptr, bd);
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input = input.Slice(8);
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outptr = output.Slice(8);
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}
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// Inverse transform column vectors.
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for (i = 0; i < 8; ++i)
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{
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for (j = 0; j < 8; ++j)
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{
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tempIn[j] = output[j * 8 + i];
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}
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ht.Cols(tempIn, tempOut, bd);
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for (j = 0; j < 8; ++j)
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{
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dest[j * stride + i] = HighbdClipPixelAdd(dest[j * stride + i], BitUtils.RoundPowerOfTwo(tempOut[j], 5), bd);
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}
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}
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}
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private static readonly HighbdTransform2D[] HighIht16 = new HighbdTransform2D[]
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{
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new HighbdTransform2D(HighbdIdct16, HighbdIdct16), // DCT_DCT = 0
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new HighbdTransform2D(HighbdIadst16, HighbdIdct16), // ADST_DCT = 1
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new HighbdTransform2D(HighbdIdct16, HighbdIadst16), // DCT_ADST = 2
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new HighbdTransform2D(HighbdIadst16, HighbdIadst16) // ADST_ADST = 3
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};
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public static void HighbdIht16x16256Add(ReadOnlySpan<int> input, Span<ushort> dest, int stride, int txType, int bd)
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{
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int i, j;
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Span<int> output = stackalloc int[16 * 16];
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Span<int> outptr = output;
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Span<int> tempIn = stackalloc int[16];
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Span<int> tempOut = stackalloc int[16];
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HighbdTransform2D ht = HighIht16[txType];
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// Rows
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for (i = 0; i < 16; ++i)
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{
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ht.Rows(input, outptr, bd);
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input = input.Slice(16);
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outptr = output.Slice(16);
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}
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// Columns
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for (i = 0; i < 16; ++i)
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{
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for (j = 0; j < 16; ++j)
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{
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tempIn[j] = output[j * 16 + i];
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}
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|||
|
ht.Cols(tempIn, tempOut, bd);
|
|||
|
for (j = 0; j < 16; ++j)
|
|||
|
{
|
|||
|
dest[j * stride + i] = HighbdClipPixelAdd(dest[j * stride + i], BitUtils.RoundPowerOfTwo(tempOut[j], 6), bd);
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
// Idct
|
|||
|
public static void HighbdIdct4x4Add(ReadOnlySpan<int> input, Span<ushort> dest, int stride, int eob, int bd)
|
|||
|
{
|
|||
|
if (eob > 1)
|
|||
|
{
|
|||
|
HighbdIdct4x416Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
HighbdIdct4x41Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
public static void HighbdIwht4x4Add(ReadOnlySpan<int> input, Span<ushort> dest, int stride, int eob, int bd)
|
|||
|
{
|
|||
|
if (eob > 1)
|
|||
|
{
|
|||
|
HighbdIwht4x416Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
HighbdIwht4x41Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
public static void HighbdIdct8x8Add(ReadOnlySpan<int> input, Span<ushort> dest, int stride, int eob, int bd)
|
|||
|
{
|
|||
|
// If dc is 1, then input[0] is the reconstructed value, do not need
|
|||
|
// dequantization. Also, when dc is 1, dc is counted in eobs, namely eobs >=1.
|
|||
|
|
|||
|
// The calculation can be simplified if there are not many non-zero dct
|
|||
|
// coefficients. Use eobs to decide what to do.
|
|||
|
// DC only DCT coefficient
|
|||
|
if (eob == 1)
|
|||
|
{
|
|||
|
vpx_Highbdidct8x8_1_add_c(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else if (eob <= 12)
|
|||
|
{
|
|||
|
HighbdIdct8x812Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
HighbdIdct8x864Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
public static void HighbdIdct16x16Add(ReadOnlySpan<int> input, Span<ushort> dest, int stride, int eob, int bd)
|
|||
|
{
|
|||
|
// The calculation can be simplified if there are not many non-zero dct
|
|||
|
// coefficients. Use eobs to separate different cases.
|
|||
|
// DC only DCT coefficient.
|
|||
|
if (eob == 1)
|
|||
|
{
|
|||
|
HighbdIdct16x161Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else if (eob <= 10)
|
|||
|
{
|
|||
|
HighbdIdct16x1610Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else if (eob <= 38)
|
|||
|
{
|
|||
|
HighbdIdct16x1638Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
HighbdIdct16x16256Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
public static void HighbdIdct32x32Add(ReadOnlySpan<int> input, Span<ushort> dest, int stride, int eob, int bd)
|
|||
|
{
|
|||
|
// Non-zero coeff only in upper-left 8x8
|
|||
|
if (eob == 1)
|
|||
|
{
|
|||
|
HighbdIdct32x321Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else if (eob <= 34)
|
|||
|
{
|
|||
|
HighbdIdct32x3234Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else if (eob <= 135)
|
|||
|
{
|
|||
|
HighbdIdct32x32135Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
HighbdIdct32x321024Add(input, dest, stride, bd);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
// Iht
|
|||
|
public static void HighbdIht4x4Add(TxType txType, ReadOnlySpan<int> input, Span<ushort> dest, int stride, int eob, int bd)
|
|||
|
{
|
|||
|
if (txType == TxType.DctDct)
|
|||
|
{
|
|||
|
HighbdIdct4x4Add(input, dest, stride, eob, bd);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
HighbdIht4x416Add(input, dest, stride, (int)txType, bd);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
public static void HighbdIht8x8Add(TxType txType, ReadOnlySpan<int> input, Span<ushort> dest, int stride, int eob, int bd)
|
|||
|
{
|
|||
|
if (txType == TxType.DctDct)
|
|||
|
{
|
|||
|
HighbdIdct8x8Add(input, dest, stride, eob, bd);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
HighbdIht8x864Add(input, dest, stride, (int)txType, bd);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
public static void HighbdIht16x16Add(TxType txType, ReadOnlySpan<int> input, Span<ushort> dest, int stride, int eob, int bd)
|
|||
|
{
|
|||
|
if (txType == TxType.DctDct)
|
|||
|
{
|
|||
|
HighbdIdct16x16Add(input, dest, stride, eob, bd);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
HighbdIht16x16256Add(input, dest, stride, (int)txType, bd);
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
}
|