[wgpu-hal] Expose capabilities DotProductInput*

Author: robamler

wgpu-hal/src/vulkan/adapter.rs

@@ -1035,6 +1035,11 @@ impl PhysicalDeviceProperties {
             if requested_features.intersects(wgt::Features::EXPERIMENTAL_MESH_SHADER) {
                 extensions.push(khr::maintenance4::NAME);
             }
+
+            // Optional `VK_KHR_shader_integer_dot_product`
+            if self.supports_extension(khr::shader_integer_dot_product::NAME) {
+                extensions.push(khr::shader_integer_dot_product::NAME);
+            }
         }
 
         // Optional `VK_KHR_swapchain_mutable_format`
@@ -2011,6 +2016,17 @@ impl super::Adapter {
             if features.contains(wgt::Features::EXPERIMENTAL_RAY_HIT_VERTEX_RETURN) {
                 capabilities.push(spv::Capability::RayQueryPositionFetchKHR)
             }
+            if self.phd_capabilities.device_api_version >= vk::API_VERSION_1_3
+                || enabled_extensions.contains(&khr::shader_integer_dot_product::NAME)
+            {
+                // See <https://registry.khronos.org/vulkan/specs/latest/man/html/VK_KHR_shader_integer_dot_product.html#_new_spir_v_capabilities>.
+                capabilities.extend(&[
+                    spv::Capability::DotProductInputAllKHR,
+                    spv::Capability::DotProductInput4x8BitKHR,
+                    spv::Capability::DotProductInput4x8BitPackedKHR,
+                    spv::Capability::DotProductKHR,
+                ]);
+            }
             spv::Options {
                 lang_version: match self.phd_capabilities.device_api_version {
                     // Use maximum supported SPIR-V version according to