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Implement a software ETC2 texture decoder (#4121)

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* Implement a software ETC2 texture decoder

* Fix output size calculation for non-2D textures

* Address PR feedback
This commit is contained in:
gdkchan 2022-12-21 20:39:58 -03:00 • committed by GitHub
parent 219f63ff4e
commit f906eb06c2
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 763 additions and 10 deletions
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3
Ryujinx.Graphics.GAL/Capabilities.cs
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@ -14,6 +14,7 @@ namespace Ryujinx.Graphics.GAL
public readonly bool SupportsBc123Compression;
public readonly bool SupportsBc45Compression;
public readonly bool SupportsBc67Compression;
public readonly bool SupportsEtc2Compression;
public readonly bool Supports3DTextureCompression;
public readonly bool SupportsBgraFormat;
public readonly bool SupportsR4G4Format;
@ -50,6 +51,7 @@ namespace Ryujinx.Graphics.GAL
bool supportsBc123Compression,
bool supportsBc45Compression,
bool supportsBc67Compression,
bool supportsEtc2Compression,
bool supports3DTextureCompression,
bool supportsBgraFormat,
bool supportsR4G4Format,
@ -83,6 +85,7 @@ namespace Ryujinx.Graphics.GAL
SupportsBc123Compression = supportsBc123Compression;
SupportsBc45Compression = supportsBc45Compression;
SupportsBc67Compression = supportsBc67Compression;
SupportsEtc2Compression = supportsEtc2Compression;
Supports3DTextureCompression = supports3DTextureCompression;
SupportsBgraFormat = supportsBgraFormat;
SupportsR4G4Format = supportsR4G4Format;

21
Ryujinx.Graphics.GAL/Format.cs
View file

@ -516,6 +516,27 @@ namespace Ryujinx.Graphics.GAL
return false;
}
/// <summary>
/// Checks if the texture format is an ETC2 format.
/// </summary>
/// <param name="format">Texture format</param>
/// <returns>True if the texture format is an ETC2 format, false otherwise</returns>
public static bool IsEtc2(this Format format)
{
switch (format)
{
case Format.Etc2RgbaSrgb:
case Format.Etc2RgbaUnorm:
case Format.Etc2RgbPtaSrgb:
case Format.Etc2RgbPtaUnorm:
case Format.Etc2RgbSrgb:
case Format.Etc2RgbUnorm:
return true;
}
return false;
}
/// <summary>
/// Checks if the texture format is a BGR format.
/// </summary>