From 5c6bdff44b0f172556d22240f267e36a70ce105c Mon Sep 17 00:00:00 2001
From: Sergey Kosarevsky <sergkosarevsky@meta.com>
Date: Tue, 7 Nov 2023 22:23:40 -0800
Subject: [PATCH] igl | Add helper methods to TextureFormatProperties

Summary:
Added helper methods to `TextureFormatProperties`:

```
bool isInteger() const noexcept;
bool hasColor() const noexcept;
bool hasDepth() const noexcept;
bool hasStencil() const noexcept;
```

Reviewed By: KyleFung

Differential Revision: D51093229

fbshipit-source-id: ec97aac516357943f84789c21d1506434ffc7746
---
 src/igl/Texture.h | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/src/igl/Texture.h b/src/igl/Texture.h
index 37ad6a0c76..47e45fa98d 100644
--- a/src/igl/Texture.h
+++ b/src/igl/Texture.h
@@ -257,29 +257,46 @@ struct TextureFormatProperties {
   [[nodiscard]] bool isCompressed() const noexcept {
     return (flags & Flags::Compressed) != 0;
   }
+  /**
+   * @brief true for integer texture formats.
+   */
+  [[nodiscard]] bool isInteger() const noexcept {
+    return (flags & Flags::Integer) != 0;
+  }
   /**
    * @brief true for sRGB texture formats.
    */
   [[nodiscard]] bool isSRGB() const noexcept {
     return (flags & Flags::sRGB) != 0;
   }
+
+  [[nodiscard]] bool hasDepth() const noexcept {
+    return (flags & Flags::Depth) != 0;
+  }
+  [[nodiscard]] bool hasStencil() const noexcept {
+    return (flags & Flags::Stencil) != 0;
+  }
+  [[nodiscard]] bool hasColor() const noexcept {
+    return !hasDepth() && !hasStencil();
+  }
+
   /**
    * @brief true for depth-only texture formats (e.g., TextureFormat::Z_UNorm24).
    */
   [[nodiscard]] bool isDepthOnly() const noexcept {
-    return (flags & Flags::Depth) != 0 && (flags & Flags::Stencil) == 0;
+    return hasDepth() && !hasStencil();
   }
   /**
    * @brief true for depth-only and depth-stencil texture formats.
    */
   [[nodiscard]] bool isDepthOrDepthStencil() const noexcept {
-    return (flags & Flags::Depth) != 0;
+    return hasDepth();
   }
   /**
    * @brief true for stencil-only texture formats (e.g., TextureFormat::S_UInt8).
    */
   [[nodiscard]] bool isStencilOnly() const noexcept {
-    return (flags & Flags::Depth) == 0 && (flags & Flags::Stencil) != 0;
+    return !hasDepth() && hasStencil();
   }
   /**
    * @brief true for depth-only, stencil-only and depth-stencil texture formats.