mirror of
https://github.com/Ryujinx/Ryujinx.git
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f4f496cb48
* Use separate NVDEC contexts per channel (for FFMPEG) * Remove NVDEC -> VIC frame override hack * Add missing bottom_field_pic_order_in_frame_present_flag * Make FFMPEG logging static * nit: Remove empty lines * New FFMPEG decoding approach -- call h264_decode_frame directly, trim surface cache to reduce memory usage * Fix case * Silence warnings * PR feedback * Per-decoder rather than per-codec ownership of surfaces on the cache
90 lines
3.9 KiB
C#
90 lines
3.9 KiB
C#
using Ryujinx.Common;
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using Ryujinx.Graphics.Gpu.Memory;
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using Ryujinx.Graphics.Nvdec.Image;
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using Ryujinx.Graphics.Nvdec.Types.Vp9;
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using Ryujinx.Graphics.Nvdec.Vp9;
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using Ryujinx.Graphics.Video;
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using System;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using static Ryujinx.Graphics.Nvdec.MemoryExtensions;
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namespace Ryujinx.Graphics.Nvdec
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{
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static class Vp9Decoder
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{
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private static Decoder _decoder = new Decoder();
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public unsafe static void Decode(ResourceManager rm, ref NvdecRegisters state)
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{
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PictureInfo pictureInfo = rm.Gmm.DeviceRead<PictureInfo>(state.SetPictureInfoOffset);
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EntropyProbs entropy = rm.Gmm.DeviceRead<EntropyProbs>(state.SetVp9EntropyProbsOffset);
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ISurface Rent(uint lumaOffset, uint chromaOffset, FrameSize size)
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{
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return rm.Cache.Get(_decoder, lumaOffset, chromaOffset, size.Width, size.Height);
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}
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ISurface lastSurface = Rent(state.SetSurfaceLumaOffset[0], state.SetSurfaceChromaOffset[0], pictureInfo.LastFrameSize);
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ISurface goldenSurface = Rent(state.SetSurfaceLumaOffset[1], state.SetSurfaceChromaOffset[1], pictureInfo.GoldenFrameSize);
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ISurface altSurface = Rent(state.SetSurfaceLumaOffset[2], state.SetSurfaceChromaOffset[2], pictureInfo.AltFrameSize);
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ISurface currentSurface = Rent(state.SetSurfaceLumaOffset[3], state.SetSurfaceChromaOffset[3], pictureInfo.CurrentFrameSize);
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Vp9PictureInfo info = pictureInfo.Convert();
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info.LastReference = lastSurface;
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info.GoldenReference = goldenSurface;
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info.AltReference = altSurface;
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entropy.Convert(ref info.Entropy);
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ReadOnlySpan<byte> bitstream = rm.Gmm.DeviceGetSpan(state.SetBitstreamOffset, (int)pictureInfo.BitstreamSize);
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ReadOnlySpan<Vp9MvRef> mvsIn = ReadOnlySpan<Vp9MvRef>.Empty;
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if (info.UsePrevInFindMvRefs)
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{
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mvsIn = GetMvsInput(rm.Gmm, pictureInfo.CurrentFrameSize, state.SetVp9LastFrameMvsOffset);
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}
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int miCols = BitUtils.DivRoundUp(pictureInfo.CurrentFrameSize.Width, 8);
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int miRows = BitUtils.DivRoundUp(pictureInfo.CurrentFrameSize.Height, 8);
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using var mvsRegion = rm.Gmm.GetWritableRegion(ExtendOffset(state.SetVp9CurrFrameMvsOffset), miRows * miCols * 16);
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Span<Vp9MvRef> mvsOut = MemoryMarshal.Cast<byte, Vp9MvRef>(mvsRegion.Memory.Span);
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uint lumaOffset = state.SetSurfaceLumaOffset[3];
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uint chromaOffset = state.SetSurfaceChromaOffset[3];
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if (_decoder.Decode(ref info, currentSurface, bitstream, mvsIn, mvsOut))
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{
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SurfaceWriter.Write(rm.Gmm, currentSurface, lumaOffset, chromaOffset);
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}
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WriteBackwardUpdates(rm.Gmm, state.SetVp9BackwardUpdatesOffset, ref info.BackwardUpdateCounts);
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rm.Cache.Put(lastSurface);
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rm.Cache.Put(goldenSurface);
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rm.Cache.Put(altSurface);
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rm.Cache.Put(currentSurface);
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}
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private static ReadOnlySpan<Vp9MvRef> GetMvsInput(MemoryManager gmm, FrameSize size, uint offset)
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{
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int miCols = BitUtils.DivRoundUp(size.Width, 8);
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int miRows = BitUtils.DivRoundUp(size.Height, 8);
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return MemoryMarshal.Cast<byte, Vp9MvRef>(gmm.DeviceGetSpan(offset, miRows * miCols * 16));
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}
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private static void WriteBackwardUpdates(MemoryManager gmm, uint offset, ref Vp9BackwardUpdates counts)
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{
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using var backwardUpdatesRegion = gmm.GetWritableRegion(ExtendOffset(offset), Unsafe.SizeOf<BackwardUpdates>());
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ref var backwardUpdates = ref MemoryMarshal.Cast<byte, BackwardUpdates>(backwardUpdatesRegion.Memory.Span)[0];
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backwardUpdates = new BackwardUpdates(ref counts);
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}
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}
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}
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