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Compare aligned size for largest mip level when considering sampler resize (#2306)

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* Compare aligned size for largest mip level when considering sampler resize

When selecting a texture that's a view for a sampler resize, we should take care that resizing it doesn't change the aligned size of any larger mip levels.

This PR covers two cases:
- When creating a view of the texture, we check that the aligned size of the view shifted up to level 0 still matches the aligned size of the container. If it does not, a copy dependency is created rather than resizing.
- When searching for a texture for sampler, textures that do _not_ match our aligned size when both are shifted up by its base level are not considered an exact match, as resizing the found texture will cause the mip 0 aligned size to change. It will create a copy dependency view instead.

Fixes graphical errors and crashes (on flush) in various Unity games that use render-to-texture.

* Move shared code to its own method.
This commit is contained in:
riperiperi 2021-05-24 08:35:26 +01:00 committed by GitHub
parent e9c15d32cb
commit 79092310fa
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 56 additions and 12 deletions
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2
Ryujinx.Graphics.Gpu/Image/Texture.cs
View File

@ -941,7 +941,7 @@ namespace Ryujinx.Graphics.Gpu.Image
return TextureMatchQuality.NoMatch;
}
if (!TextureCompatibility.SizeMatches(Info, info, (flags & TextureSearchFlags.Strict) == 0))
if (!TextureCompatibility.SizeMatches(Info, info, (flags & TextureSearchFlags.Strict) == 0, FirstLevel))
{
return TextureMatchQuality.NoMatch;
}

66
Ryujinx.Graphics.Gpu/Image/TextureCompatibility.cs
View File

@ -233,6 +233,20 @@ namespace Ryujinx.Graphics.Gpu.Image
if (size.Width == otherSize.Width && size.Height == otherSize.Height)
{
if (level > 0 && result == TextureViewCompatibility.Full)
{
// A resize should not change the aligned size of the largest mip.
// If it would, then create a copy dependency rather than a full view.
Size mip0SizeLhs = GetAlignedSize(lhs);
Size mip0SizeRhs = GetLargestAlignedSize(rhs, level);
if (mip0SizeLhs.Width != mip0SizeRhs.Width || mip0SizeLhs.Height != mip0SizeRhs.Height)
{
result = TextureViewCompatibility.CopyOnly;
}
}
return result;
}
else if (lhs.IsLinear && rhs.IsLinear)
@ -300,8 +314,9 @@ namespace Ryujinx.Graphics.Gpu.Image
/// <param name="lhs">Texture information to compare</param>
/// <param name="rhs">Texture information to compare with</param>
/// <param name="alignSizes">True to align the sizes according to the texture layout for comparison</param>
/// <param name="lhsLevel">Mip level of the lhs texture. Aligned sizes are compared for the largest mip</param>
/// <returns>True if the sizes matches, false otherwise</returns>
public static bool SizeMatches(TextureInfo lhs, TextureInfo rhs, bool alignSizes)
public static bool SizeMatches(TextureInfo lhs, TextureInfo rhs, bool alignSizes, int lhsLevel = 0)
{
if (lhs.GetLayers() != rhs.GetLayers())
{
@ -312,8 +327,8 @@ namespace Ryujinx.Graphics.Gpu.Image
if (alignSizes && !isTextureBuffer)
{
Size size0 = GetAlignedSize(lhs);
Size size1 = GetAlignedSize(rhs);
Size size0 = GetLargestAlignedSize(lhs, lhsLevel);
Size size1 = GetLargestAlignedSize(rhs, lhsLevel);
return size0.Width == size1.Width &&
size0.Height == size1.Height &&
@ -328,17 +343,16 @@ namespace Ryujinx.Graphics.Gpu.Image
}
/// <summary>
/// Gets the aligned sizes of the specified texture information.
/// Gets the aligned sizes for the given dimensions, using the specified texture information.
/// The alignment depends on the texture layout and format bytes per pixel.
/// </summary>
/// <param name="info">Texture information to calculate the aligned size from</param>
/// <param name="level">Mipmap level for texture views</param>
/// <param name="width">The width to be aligned</param>
/// <param name="height">The height to be aligned</param>
/// <param name="depth">The depth to be aligned</param>
/// <returns>The aligned texture size</returns>
public static Size GetAlignedSize(TextureInfo info, int level = 0)
private static Size GetAlignedSize(TextureInfo info, int width, int height, int depth)
{
int width = Math.Max(1, info.Width >> level);
int height = Math.Max(1, info.Height >> level);
if (info.IsLinear)
{
return SizeCalculator.GetLinearAlignedSize(
@ -350,8 +364,6 @@ namespace Ryujinx.Graphics.Gpu.Image
}
else
{
int depth = Math.Max(1, info.GetDepth() >> level);
return SizeCalculator.GetBlockLinearAlignedSize(
width,
height,
@ -365,6 +377,38 @@ namespace Ryujinx.Graphics.Gpu.Image
}
}
/// <summary>
/// Gets the aligned sizes of the specified texture information, shifted to the largest mip from a given level.
/// The alignment depends on the texture layout and format bytes per pixel.
/// </summary>
/// <param name="info">Texture information to calculate the aligned size from</param>
/// <param name="level">Mipmap level for texture views. Shifts the aligned size to represent the largest mip level</param>
/// <returns>The aligned texture size of the largest mip level</returns>
public static Size GetLargestAlignedSize(TextureInfo info, int level)
{
int width = info.Width << level;
int height = info.Height << level;
int depth = info.GetDepth() << level;
return GetAlignedSize(info, width, height, depth);
}
/// <summary>
/// Gets the aligned sizes of the specified texture information.
/// The alignment depends on the texture layout and format bytes per pixel.
/// </summary>
/// <param name="info">Texture information to calculate the aligned size from</param>
/// <param name="level">Mipmap level for texture views</param>
/// <returns>The aligned texture size</returns>
public static Size GetAlignedSize(TextureInfo info, int level = 0)
{
int width = Math.Max(1, info.Width >> level);
int height = Math.Max(1, info.Height >> level);
int depth = Math.Max(1, info.GetDepth() >> level);
return GetAlignedSize(info, width, height, depth);
}
/// <summary>
/// Check if it's possible to create a view with the layout of the second texture information from the first.
/// The layout information is composed of the Stride for linear textures, or GOB block size