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https://github.com/GreemDev/Ryujinx.git
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0bce4a074a
Some games (GameMaker Studio) build texture atlases out of sprites during initialization, using the 2D copy method. These copies are done from textures loaded into memory, not rendered, so they are not scaled to begin with. I had set srcTexture in these copies to force scaling, but really it only needs to scale if the texture already exists and was scaled by rendering or something else. I just set that to false, so it doesn't change if the texture is scaled or not. This will also avoid the destination being scaled if the source wasn't. The copy can handle mismatching scales just fine. This prevents scaling artifacts in GMS games, and maybe others (not Super Mario Maker 2, that has another issue).
181 lines
7.9 KiB
C#
181 lines
7.9 KiB
C#
using Ryujinx.Graphics.Device;
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using Ryujinx.Graphics.GAL;
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using Ryujinx.Graphics.Gpu.Engine.Types;
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using Ryujinx.Graphics.Gpu.Image;
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using Ryujinx.Graphics.Texture;
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using System;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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namespace Ryujinx.Graphics.Gpu.Engine.Twod
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{
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/// <summary>
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/// Represents a 2D engine class.
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/// </summary>
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class TwodClass : IDeviceState
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{
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private readonly GpuChannel _channel;
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private readonly DeviceState<TwodClassState> _state;
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/// <summary>
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/// Creates a new instance of the 2D engine class.
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/// </summary>
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/// <param name="channel">The channel that will make use of the engine</param>
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public TwodClass(GpuChannel channel)
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{
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_channel = channel;
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_state = new DeviceState<TwodClassState>(new Dictionary<string, RwCallback>
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{
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{ nameof(TwodClassState.PixelsFromMemorySrcY0Int), new RwCallback(PixelsFromMemorySrcY0Int, null) }
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});
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}
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/// <summary>
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/// Reads data from the class registers.
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/// </summary>
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/// <param name="offset">Register byte offset</param>
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/// <returns>Data at the specified offset</returns>
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public int Read(int offset) => _state.Read(offset);
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/// <summary>
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/// Writes data to the class registers.
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/// </summary>
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/// <param name="offset">Register byte offset</param>
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/// <param name="data">Data to be written</param>
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public void Write(int offset, int data) => _state.Write(offset, data);
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/// <summary>
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/// Performs the blit operation, triggered by the register write.
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/// </summary>
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/// <param name="argument">Method call argument</param>
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private void PixelsFromMemorySrcY0Int(int argument)
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{
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var memoryManager = _channel.MemoryManager;
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var dstCopyTexture = Unsafe.As<uint, TwodTexture>(ref _state.State.SetDstFormat);
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var srcCopyTexture = Unsafe.As<uint, TwodTexture>(ref _state.State.SetSrcFormat);
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long srcX = ((long)_state.State.SetPixelsFromMemorySrcX0Int << 32) | (long)(ulong)_state.State.SetPixelsFromMemorySrcX0Frac;
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long srcY = ((long)_state.State.PixelsFromMemorySrcY0Int << 32) | (long)(ulong)_state.State.SetPixelsFromMemorySrcY0Frac;
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long duDx = ((long)_state.State.SetPixelsFromMemoryDuDxInt << 32) | (long)(ulong)_state.State.SetPixelsFromMemoryDuDxFrac;
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long dvDy = ((long)_state.State.SetPixelsFromMemoryDvDyInt << 32) | (long)(ulong)_state.State.SetPixelsFromMemoryDvDyFrac;
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bool originCorner = _state.State.SetPixelsFromMemorySampleModeOrigin == SetPixelsFromMemorySampleModeOrigin.Corner;
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if (originCorner)
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{
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// If the origin is corner, it is assumed that the guest API
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// is manually centering the origin by adding a offset to the
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// source region X/Y coordinates.
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// Here we attempt to remove such offset to ensure we have the correct region.
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// The offset is calculated as FactorXY / 2.0, where FactorXY = SrcXY / DstXY,
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// so we do the same here by dividing the fixed point value by 2, while
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// throwing away the fractional part to avoid rounding errors.
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srcX -= (duDx >> 33) << 32;
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srcY -= (dvDy >> 33) << 32;
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}
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int srcX1 = (int)(srcX >> 32);
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int srcY1 = (int)(srcY >> 32);
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int srcX2 = srcX1 + (int)((duDx * _state.State.SetPixelsFromMemoryDstWidth + uint.MaxValue) >> 32);
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int srcY2 = srcY1 + (int)((dvDy * _state.State.SetPixelsFromMemoryDstHeight + uint.MaxValue) >> 32);
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int dstX1 = (int)_state.State.SetPixelsFromMemoryDstX0;
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int dstY1 = (int)_state.State.SetPixelsFromMemoryDstY0;
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int dstX2 = dstX1 + (int)_state.State.SetPixelsFromMemoryDstWidth;
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int dstY2 = dstY1 + (int)_state.State.SetPixelsFromMemoryDstHeight;
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// The source and destination textures should at least be as big as the region being requested.
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// The hints will only resize within alignment constraints, so out of bound copies won't resize in most cases.
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var srcHint = new Size(srcX2, srcY2, 1);
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var dstHint = new Size(dstX2, dstY2, 1);
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var srcCopyTextureFormat = srcCopyTexture.Format.Convert();
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int srcWidthAligned = srcCopyTexture.Stride / srcCopyTextureFormat.BytesPerPixel;
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ulong offset = 0;
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// For an out of bounds copy, we must ensure that the copy wraps to the next line,
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// so for a copy from a 64x64 texture, in the region [32, 96[, there are 32 pixels that are
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// outside the bounds of the texture. We fill the destination with the first 32 pixels
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// of the next line on the source texture.
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// This can be done by simply adding an offset to the texture address, so that the initial
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// gap is skipped and the copy is inside bounds again.
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// This is required by the proprietary guest OpenGL driver.
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if (srcCopyTexture.LinearLayout && srcCopyTexture.Width == srcX2 && srcX2 > srcWidthAligned && srcX1 > 0)
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{
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offset = (ulong)(srcX1 * srcCopyTextureFormat.BytesPerPixel);
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srcCopyTexture.Width -= srcX1;
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srcX2 -= srcX1;
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srcX1 = 0;
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}
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var srcTexture = memoryManager.Physical.TextureCache.FindOrCreateTexture(
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memoryManager,
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srcCopyTexture,
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offset,
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srcCopyTextureFormat,
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false,
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srcHint);
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if (srcTexture == null)
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{
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return;
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}
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memoryManager.Physical.TextureCache.Lift(srcTexture);
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// When the source texture that was found has a depth format,
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// we must enforce the target texture also has a depth format,
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// as copies between depth and color formats are not allowed.
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FormatInfo dstCopyTextureFormat;
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if (srcTexture.Format.IsDepthOrStencil())
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{
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dstCopyTextureFormat = srcTexture.Info.FormatInfo;
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}
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else
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{
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dstCopyTextureFormat = dstCopyTexture.Format.Convert();
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}
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var dstTexture = memoryManager.Physical.TextureCache.FindOrCreateTexture(
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memoryManager,
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dstCopyTexture,
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0,
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dstCopyTextureFormat,
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srcTexture.ScaleMode == TextureScaleMode.Scaled,
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dstHint);
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if (dstTexture == null)
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{
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return;
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}
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float scale = srcTexture.ScaleFactor;
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float dstScale = dstTexture.ScaleFactor;
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Extents2D srcRegion = new Extents2D(
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(int)Math.Ceiling(scale * (srcX1 / srcTexture.Info.SamplesInX)),
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(int)Math.Ceiling(scale * (srcY1 / srcTexture.Info.SamplesInY)),
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(int)Math.Ceiling(scale * (srcX2 / srcTexture.Info.SamplesInX)),
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(int)Math.Ceiling(scale * (srcY2 / srcTexture.Info.SamplesInY)));
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Extents2D dstRegion = new Extents2D(
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(int)Math.Ceiling(dstScale * (dstX1 / dstTexture.Info.SamplesInX)),
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(int)Math.Ceiling(dstScale * (dstY1 / dstTexture.Info.SamplesInY)),
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(int)Math.Ceiling(dstScale * (dstX2 / dstTexture.Info.SamplesInX)),
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(int)Math.Ceiling(dstScale * (dstY2 / dstTexture.Info.SamplesInY)));
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bool linearFilter = _state.State.SetPixelsFromMemorySampleModeFilter == SetPixelsFromMemorySampleModeFilter.Bilinear;
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srcTexture.HostTexture.CopyTo(dstTexture.HostTexture, srcRegion, dstRegion, linearFilter);
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dstTexture.SignalModified();
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}
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}
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}
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