Graphics Accessories: added TypelessFormatToSRGB function

Author: TheMostDiligent

Graphics/GraphicsAccessories/interface/GraphicsAccessories.hpp

@@ -791,9 +791,15 @@ TEXTURE_FORMAT BCFormatToUncompressed(TEXTURE_FORMAT Fmt);
 /// Converts typeless format to a corresponding UNORM format, for example:
 ///   RGBA8_TYPELESS -> RGBA8_UNORM
 ///   BC1_TYPELESS   -> BC1_UNORM
-/// If the format is not typeless, it is returned as is.
+/// If the format is not typeless, or cannot be converted to UNORM, it is returned as is.
 TEXTURE_FORMAT TypelessFormatToUnorm(TEXTURE_FORMAT Fmt);
 
+/// Converts typeless format to a corresponding SRGB format, for example:
+///   RGBA8_TYPELESS -> RGBA8_UNORM_SRGB
+///   BC1_TYPELESS   -> BC1_UNORM_SRGB
+/// If the format is not typeless, or cannot be converted to SRGB, it is returned as is.
+TEXTURE_FORMAT TypelessFormatToSRGB(TEXTURE_FORMAT Fmt);
+
 
 bool IsSRGBFormat(TEXTURE_FORMAT Fmt);
 

Graphics/GraphicsAccessories/src/GraphicsAccessories.cpp

@@ -2732,6 +2732,37 @@ TEXTURE_FORMAT TypelessFormatToUnorm(TEXTURE_FORMAT Fmt)
     }
 }
 
+TEXTURE_FORMAT TypelessFormatToSRGB(TEXTURE_FORMAT Fmt)
+{
+    static_assert(TEX_FORMAT_NUM_FORMATS == 106, "Please update the switch below to handle the new texture format, if needed");
+    switch (Fmt)
+    {
+        case TEX_FORMAT_RGBA8_TYPELESS:
+            return TEX_FORMAT_RGBA8_UNORM_SRGB;
+
+        case TEX_FORMAT_BC1_TYPELESS:
+            return TEX_FORMAT_BC1_UNORM_SRGB;
+
+        case TEX_FORMAT_BC2_TYPELESS:
+            return TEX_FORMAT_BC2_UNORM_SRGB;
+
+        case TEX_FORMAT_BC3_TYPELESS:
+            return TEX_FORMAT_BC3_UNORM_SRGB;
+
+        case TEX_FORMAT_BGRA8_TYPELESS:
+            return TEX_FORMAT_BGRA8_UNORM_SRGB;
+
+        case TEX_FORMAT_BGRX8_TYPELESS:
+            return TEX_FORMAT_BGRX8_UNORM_SRGB;
+
+        case TEX_FORMAT_BC7_TYPELESS:
+            return TEX_FORMAT_BC7_UNORM_SRGB;
+
+        default:
+            return Fmt;
+    }
+}
+
 bool IsSRGBFormat(TEXTURE_FORMAT Fmt)
 {
     return (Fmt == TEX_FORMAT_RGBA8_UNORM_SRGB ||