From 31040831438bd5bd446bda395a5bf168e8f91b6a Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <stephen@hexops.com>
Date: Thu, 11 Aug 2022 12:42:40 -0700
Subject: [PATCH] gpu: add BindGroup.Entry buffer/sampler/textureView
 constructor helpers

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
---
 gpu/src/bind_group.zig | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/gpu/src/bind_group.zig b/gpu/src/bind_group.zig
index 11da0a73..37d03508 100644
--- a/gpu/src/bind_group.zig
+++ b/gpu/src/bind_group.zig
@@ -14,6 +14,34 @@ pub const BindGroup = opaque {
         size: u64,
         sampler: ?*Sampler = null,
         texture_view: ?*TextureView = null,
+
+        /// Helper to create a buffer BindGroup.Entry.
+        pub fn buffer(binding: u32, buf: *Buffer, offset: u64, size: u64) Entry {
+            return .{
+                .binding = binding,
+                .buffer = buf,
+                .offset = offset,
+                .size = size,
+            };
+        }
+
+        /// Helper to create a sampler BindGroup.Entry.
+        pub fn sampler(binding: u32, _sampler: *Sampler) Entry {
+            return .{
+                .binding = binding,
+                .sampler = _sampler,
+                .size = 0,
+            };
+        }
+
+        /// Helper to create a texture view BindGroup.Entry.
+        pub fn textureView(binding: u32, texture_view: *TextureView) Entry {
+            return .{
+                .binding = binding,
+                .texture_view = texture_view,
+                .size = 0,
+            };
+        }
     };
 
     pub const Descriptor = extern struct {