From c4e3fb4d36ae15419dd15bdf8ecb5d25c86de577 Mon Sep 17 00:00:00 2001
From: Dzmitry Malyshau <kvarkus@gmail.com>
Date: Mon, 16 Mar 2020 12:01:57 -0400
Subject: [PATCH] Add texture component type field to BGL entry

---
 ffi/wgpu.h                     |  7 +++++++
 wgpu-core/src/binding_model.rs | 10 ++++++++++
 2 files changed, 17 insertions(+)

diff --git a/ffi/wgpu.h b/ffi/wgpu.h
index 905955eae..c8c97d65d 100644
--- a/ffi/wgpu.h
+++ b/ffi/wgpu.h
@@ -180,6 +180,12 @@ typedef enum {
   WGPUTextureAspect_DepthOnly,
 } WGPUTextureAspect;
 
+typedef enum {
+  WGPUTextureComponentType_Float,
+  WGPUTextureComponentType_Sint,
+  WGPUTextureComponentType_Uint,
+} WGPUTextureComponentType;
+
 typedef enum {
   WGPUTextureDimension_D1,
   WGPUTextureDimension_D2,
@@ -482,6 +488,7 @@ typedef struct {
   bool multisampled;
   bool has_dynamic_offset;
   WGPUTextureViewDimension view_dimension;
+  WGPUTextureComponentType texture_component_type;
   WGPUTextureFormat storage_texture_format;
 } WGPUBindGroupLayoutEntry;
 
diff --git a/wgpu-core/src/binding_model.rs b/wgpu-core/src/binding_model.rs
index 55d1ef1fe..ff6729e9d 100644
--- a/wgpu-core/src/binding_model.rs
+++ b/wgpu-core/src/binding_model.rs
@@ -33,6 +33,15 @@ pub enum BindingType {
     WriteonlyStorageTexture = 7,
 }
 
+#[repr(C)]
+#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize), serde(crate="serde_crate"))]
+pub enum TextureComponentType {
+    Float,
+    Sint,
+    Uint,
+}
+
 #[repr(C)]
 #[derive(Clone, Debug, Hash, PartialEq)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize), serde(crate="serde_crate"))]
@@ -43,6 +52,7 @@ pub struct BindGroupLayoutEntry {
     pub multisampled: bool,
     pub has_dynamic_offset: bool,
     pub view_dimension: wgt::TextureViewDimension,
+    pub texture_component_type: TextureComponentType,
     pub storage_texture_format: wgt::TextureFormat,
 }