d1604aa762
* first try * second try * working update * Final impl * Fixes nits * Fix everything * remove leftover * Update FFmpegContext.cs * Update Surface.cs * Addresses gdkchan feedback * bool not byte * Addresses gdkchan feedback
40 lines
1.4 KiB
C#
40 lines
1.4 KiB
C#
using Ryujinx.Graphics.Nvdec.FFmpeg.H264;
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using Ryujinx.Graphics.Nvdec.Image;
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using Ryujinx.Graphics.Nvdec.Types.H264;
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using Ryujinx.Graphics.Video;
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using System;
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namespace Ryujinx.Graphics.Nvdec
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{
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static class H264Decoder
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{
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private const int MbSizeInPixels = 16;
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public static void Decode(NvdecDecoderContext context, 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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H264PictureInfo info = pictureInfo.Convert();
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ReadOnlySpan<byte> bitstream = rm.Gmm.DeviceGetSpan(state.SetBitstreamOffset, (int)pictureInfo.BitstreamSize);
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int width = (int)pictureInfo.PicWidthInMbs * MbSizeInPixels;
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int height = (int)pictureInfo.PicHeightInMbs * MbSizeInPixels;
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int surfaceIndex = (int)pictureInfo.OutputSurfaceIndex;
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uint lumaOffset = state.SetSurfaceLumaOffset[surfaceIndex];
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uint chromaOffset = state.SetSurfaceChromaOffset[surfaceIndex];
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Decoder decoder = context.GetH264Decoder();
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ISurface outputSurface = rm.Cache.Get(decoder, 0, 0, width, height);
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if (decoder.Decode(ref info, outputSurface, bitstream))
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{
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SurfaceWriter.Write(rm.Gmm, outputSurface, lumaOffset, chromaOffset);
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}
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rm.Cache.Put(outputSurface);
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}
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}
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}
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