From 96933a948e2a356ad2e7375a8c1104f8b02c5a13 Mon Sep 17 00:00:00 2001
From: Jinlei Li <jinleili0@outlook.com>
Date: Thu, 22 Sep 2022 12:12:10 +0800
Subject: [PATCH 1/2] gl: add `Rgba16Float` format support for color
 attachments

---
 wgpu-hal/src/gles/adapter.rs | 34 +++++++++++++++++++++-------------
 1 file changed, 21 insertions(+), 13 deletions(-)

diff --git a/wgpu-hal/src/gles/adapter.rs b/wgpu-hal/src/gles/adapter.rs
index 92aaf1bb13..12bfc1e25b 100644
--- a/wgpu-hal/src/gles/adapter.rs
+++ b/wgpu-hal/src/gles/adapter.rs
@@ -773,21 +773,29 @@ impl crate::Adapter<super::Api> for super::Adapter {
         &self,
         surface: &super::Surface,
     ) -> Option<crate::SurfaceCapabilities> {
+        let mut formats = if surface.supports_srgb() {
+            vec![
+                wgt::TextureFormat::Rgba8UnormSrgb,
+                #[cfg(not(target_arch = "wasm32"))]
+                wgt::TextureFormat::Bgra8UnormSrgb,
+            ]
+        } else {
+            vec![
+                wgt::TextureFormat::Rgba8Unorm,
+                #[cfg(not(target_arch = "wasm32"))]
+                wgt::TextureFormat::Bgra8Unorm,
+            ]
+        };
+        if self
+            .shared
+            .private_caps
+            .contains(super::PrivateCapabilities::COLOR_BUFFER_HALF_FLOAT)
+        {
+            formats.push(wgt::TextureFormat::Rgba16Float)
+        }
         if surface.presentable {
             Some(crate::SurfaceCapabilities {
-                formats: if surface.supports_srgb() {
-                    vec![
-                        wgt::TextureFormat::Rgba8UnormSrgb,
-                        #[cfg(not(target_arch = "wasm32"))]
-                        wgt::TextureFormat::Bgra8UnormSrgb,
-                    ]
-                } else {
-                    vec![
-                        wgt::TextureFormat::Rgba8Unorm,
-                        #[cfg(not(target_arch = "wasm32"))]
-                        wgt::TextureFormat::Bgra8Unorm,
-                    ]
-                },
+                formats,
                 present_modes: vec![wgt::PresentMode::Fifo], //TODO
                 composite_alpha_modes: vec![wgt::CompositeAlphaMode::Opaque], //TODO
                 swap_chain_sizes: 2..=2,

From 8b68d4510bfcbabbb09a790d037bd5462f72497f Mon Sep 17 00:00:00 2001
From: Connor Fitzgerald <connorwadefitzgerald@gmail.com>
Date: Wed, 5 Oct 2022 17:13:25 -0400
Subject: [PATCH 2/2] Changelog

---
 CHANGELOG.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6fd4e5348e..2db1a26843 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -101,7 +101,7 @@ SurfaceConfiguration {
   and `VUID-StandaloneSpirv-Flat-04744`. By @jimblandy in
   [#3008](https://github.com/gfx-rs/wgpu/pull/3008)
 
-#### Gles
+#### GLES
 - Report vendor id for Mesa and Apple GPUs. By @i509VCB [#3036](https://github.com/gfx-rs/wgpu/pull/3036)
 - Report Apple M2 gpu as integrated. By @i509VCB [#3036](https://github.com/gfx-rs/wgpu/pull/3036)
 
@@ -127,6 +127,9 @@ SurfaceConfiguration {
 - Use the use effective api version for determining device features instead of wrongly assuming `VkPhysicalDeviceProperties.apiVersion`
   is the actual version of the device. By @i509VCB in [#3011](https://github.com/gfx-rs/wgpu/pull/3011)
 
+#### GLES
+- Add `Rgba16Float` format support for color attachments. By @jinleili in [#3045](https://github.com/gfx-rs/wgpu/pull/3045)
+
 ### Performance
 
 - Made `StagingBelt::write_buffer()` check more thoroughly for reusable memory; by @kpreid in [#2906](https://github.com/gfx-rs/wgpu/pull/2906)