Add Mesh and Task shader support to GFX (#3190)

* Bump vulkan headers

Also just use vulkan-headers as a submodule

* Add drawMeshTasks to gfx graphics pipelines

* Add DispatchMesh overload with no payload, with GLSL intrinsic

* Require spirv 1.4 for mesh shaders

* Add vulkan mesh shader feature discovery

* Add mesh shader stage bits to vk-util

* Add mesh and task shader support to render-test

* Add mesh and task tests

* Preserve "payload" specifier in task shaders

* Add mesh shader pipeline support to gfx

* Add TODO

* Add numThreads attribute for amplification stage

* Add payload to task shader test

* Drop dependency on d3dx12

* Allow passing payloads from task to mesh shaders

* regenerate vs projects

* check DispatchMesh name correctly

* Add mesh shader tests to failing tests

* Detect wave-ops feature on vulkan

* Add fuse-product to expected failures

This fails because the global varaible `count` is not initialized

* Add required extension to WaveMaskMatch SPIR-V impl

* Remove meshShader member from pipeline desc

* Identify mesh shader support on d3d12

1 files changed, 6 insertions, 0 deletions

diff --git a/tools/gfx/vulkan/vk-api.h b/tools/gfx/vulkan/vk-api.h
index 127988946..3df6436d9 100644
--- a/tools/gfx/vulkan/vk-api.h
+++ b/tools/gfx/vulkan/vk-api.h
@@ -204,6 +204,7 @@ namespace gfx {
     x(vkCmdDebugMarkerBeginEXT) \
     x(vkCmdDebugMarkerEndEXT) \
     x(vkDebugMarkerSetObjectNameEXT) \
+    x(vkCmdDrawMeshTasksEXT) \
     /* */
 
 #define VK_API_ALL_GLOBAL_PROCS(x) \
@@ -262,6 +263,11 @@ struct VulkanExtendedFeatureProperties
         VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_CLOCK_FEATURES_KHR
     };
 
+    // Mesh shader features
+    VkPhysicalDeviceMeshShaderFeaturesEXT meshShaderFeatures = {
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MESH_SHADER_FEATURES_EXT
+    };
+
     // Vulkan 1.2 features.
     VkPhysicalDeviceVulkan12Features vulkan12Features = {
         VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES};