Support 3D BC4 and BC5 compressed textures (#1655)

* Support 3D BC4 and BC5 compressed textures

* PR feedback

* Fix some typos

1 files changed, 20 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.GAL/Format.cs b/Ryujinx.Graphics.GAL/Format.cs
index a4e434b1..10b754ea 100644
--- a/Ryujinx.Graphics.GAL/Format.cs
+++ b/Ryujinx.Graphics.GAL/Format.cs
@@ -341,5 +341,25 @@ namespace Ryujinx.Graphics.GAL
         {
             return format.IsUint() || format.IsSint();
         }
+
+        /// <summary>
+        /// Checks if the texture format is a BC4 compressed format.
+        /// </summary>
+        /// <param name="format">Texture format</param>
+        /// <returns>True if the texture format is a BC4 compressed format, false otherwise</returns>
+        public static bool IsBc4(this Format format)
+        {
+            return format == Format.Bc4Unorm || format == Format.Bc4Snorm;
+        }
+
+        /// <summary>
+        /// Checks if the texture format is a BC5 compressed format.
+        /// </summary>
+        /// <param name="format">Texture format</param>
+        /// <returns>True if the texture format is a BC5 compressed format, false otherwise</returns>
+        public static bool IsBc5(this Format format)
+        {
+            return format == Format.Bc5Unorm || format == Format.Bc5Snorm;
+        }
     }
 }
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