Add Rgb9e5Ufloat

CHANGELOG.md

@@ -9,6 +9,7 @@
     - new `Features::SPIRV_SHADER_PASSTHROUGH` run-time feature allows providing pass-through SPIR-V (orthogonal to the compile feature)
     - several bitflag names are renamed to plural: `TextureUsage`, `BufferUsage`, `ColorWrite`.
     - renamed `InputStepMode` to `VertexStepMode`
+    - Implemented `Rgb9e5Ufloat` format.
   - Fixed:
     - `Device::create_query_set` would return an error when creating exactly `QUERY_SET_MAX_QUERIES` (8192) queries. Now it only returns an error when trying to create *more* than `QUERY_SET_MAX_QUERIES` queries.
 

wgpu-core/src/validation.rs

@@ -634,6 +634,7 @@ impl NumericType {
             Tf::Depth32Float | Tf::Depth24Plus | Tf::Depth24PlusStencil8 => {
                 panic!("Unexpected depth format")
             }
+            Tf::Rgb9e5Ufloat => (NumericDimension::Vector(Vs::Tri), Sk::Float),
             Tf::Bc1RgbaUnorm
             | Tf::Bc1RgbaUnormSrgb
             | Tf::Bc2RgbaUnorm

wgpu-hal/src/dx12/conv.rs

@@ -47,6 +47,7 @@ pub(super) fn map_texture_format(format: wgt::TextureFormat) -> dxgiformat::DXGI
         Tf::Depth32Float => DXGI_FORMAT_D32_FLOAT,
         Tf::Depth24Plus => DXGI_FORMAT_D24_UNORM_S8_UINT,
         Tf::Depth24PlusStencil8 => DXGI_FORMAT_D24_UNORM_S8_UINT,
+        Tf::Rgb9e5Ufloat => DXGI_FORMAT_R9G9B9E5_SHAREDEXP,
         Tf::Bc1RgbaUnorm => DXGI_FORMAT_BC1_UNORM,
         Tf::Bc1RgbaUnormSrgb => DXGI_FORMAT_BC1_UNORM_SRGB,
         Tf::Bc2RgbaUnorm => DXGI_FORMAT_BC2_UNORM,

wgpu-hal/src/gles/adapter.rs

@@ -403,7 +403,8 @@ impl crate::Adapter<super::Api> for super::Adapter {
             Tf::Depth32Float => Tfc::SAMPLED | Tfc::DEPTH_STENCIL_ATTACHMENT,
             Tf::Depth24Plus => Tfc::SAMPLED | Tfc::DEPTH_STENCIL_ATTACHMENT,
             Tf::Depth24PlusStencil8 => Tfc::SAMPLED | Tfc::DEPTH_STENCIL_ATTACHMENT,
-            Tf::Bc1RgbaUnorm
+            Tf::Rgb9e5Ufloat
+            | Tf::Bc1RgbaUnorm
             | Tf::Bc1RgbaUnormSrgb
             | Tf::Bc2RgbaUnorm
             | Tf::Bc2RgbaUnormSrgb

wgpu-hal/src/gles/conv.rs

@@ -60,6 +60,7 @@ impl super::AdapterShared {
                 glow::DEPTH_COMPONENT,
                 glow::UNSIGNED_INT,
             ),
+            Tf::Rgb9e5Ufloat => (glow::RGB9_E5, glow::RGB, glow::UNSIGNED_INT_5_9_9_9_REV),
             Tf::Bc1RgbaUnorm
             | Tf::Bc1RgbaUnormSrgb
             | Tf::Bc2RgbaUnorm

wgpu-hal/src/metal/adapter.rs

@@ -189,6 +189,7 @@ impl crate::Adapter<super::Api> for super::Adapter {
             Tf::Depth24Plus | Tf::Depth24PlusStencil8 => {
                 Tfc::DEPTH_STENCIL_ATTACHMENT | Tfc::SAMPLED_LINEAR
             }
+            Tf::Rgb9e5Ufloat => Tfc::SAMPLED_LINEAR,
             Tf::Bc1RgbaUnorm
             | Tf::Bc1RgbaUnormSrgb
             | Tf::Bc2RgbaUnorm
@@ -988,6 +989,7 @@ impl super::PrivateCapabilities {
                     Depth32Float_Stencil8
                 }
             }
+            Tf::Rgb9e5Ufloat => RGB9E5Float,
             Tf::Bc1RgbaUnorm => BC1_RGBA,
             Tf::Bc1RgbaUnormSrgb => BC1_RGBA_sRGB,
             Tf::Bc2RgbaUnorm => BC2_RGBA,

wgpu-hal/src/vulkan/conv.rs

@@ -56,6 +56,7 @@ impl super::PrivateCapabilities {
                     F::D32_SFLOAT_S8_UINT
                 }
             }
+            Tf::Rgb9e5Ufloat => F::E5B9G9R9_UFLOAT_PACK32,
             Tf::Bc1RgbaUnorm => F::BC1_RGBA_UNORM_BLOCK,
             Tf::Bc1RgbaUnormSrgb => F::BC1_RGBA_SRGB_BLOCK,
             Tf::Bc2RgbaUnorm => F::BC2_UNORM_BLOCK,