Add DrawMeshIndirectAttribs::pMtlAttribs for Metal mesh draw threadgroup sizes (API256017)

Author: MikhailGorobets

Graphics/GraphicsEngine/interface/APIInfo.h

@@ -30,7 +30,7 @@
 /// \file
 /// Diligent API information
 
-#define DILIGENT_API_VERSION 256016
+#define DILIGENT_API_VERSION 256017
 
 #include "../../../Primitives/interface/BasicTypes.h"
 

Graphics/GraphicsEngine/interface/DeviceContext.h

@@ -714,6 +714,12 @@ struct DrawMeshIndirectAttribs
     /// When pCounterBuffer is not null, state transition mode for the count buffer.
     RESOURCE_STATE_TRANSITION_MODE CounterBufferStateTransitionMode DEFAULT_INITIALIZER(RESOURCE_STATE_TRANSITION_MODE_NONE);
 
+    /// Metal-specific mesh draw command attributes.
+    ///
+    /// \remarks
+    ///     This member is only used by Metal backend and is ignored by others.
+    const DrawMeshAttribsMtl* pMtlAttribs DEFAULT_INITIALIZER(nullptr);
+
 #if DILIGENT_CPP_INTERFACE
     /// Initializes the structure members with default values
     constexpr DrawMeshIndirectAttribs() noexcept {}
@@ -726,15 +732,17 @@ struct DrawMeshIndirectAttribs
                                       RESOURCE_STATE_TRANSITION_MODE _AttribsBufferStateTransitionMode = DrawMeshIndirectAttribs{}.AttribsBufferStateTransitionMode,
                                       IBuffer*                       _pCounterBuffer                   = DrawMeshIndirectAttribs{}.pCounterBuffer,
                                       Uint64                         _CounterOffset                    = DrawMeshIndirectAttribs{}.CounterOffset,
-                                      RESOURCE_STATE_TRANSITION_MODE _CounterBufferStateTransitionMode = DrawMeshIndirectAttribs{}.CounterBufferStateTransitionMode) noexcept :
+                                      RESOURCE_STATE_TRANSITION_MODE _CounterBufferStateTransitionMode = DrawMeshIndirectAttribs{}.CounterBufferStateTransitionMode,
+                                      const DrawMeshAttribsMtl*      _pMtlAttribs                     = DrawMeshIndirectAttribs{}.pMtlAttribs) noexcept :
         pAttribsBuffer                  {_pAttribsBuffer                  },
         DrawArgsOffset                  {_DrawArgsOffset                  },
         Flags                           {_Flags                           },
         CommandCount                    {_CommandCount                    },
         AttribsBufferStateTransitionMode{_AttribsBufferStateTransitionMode},
         pCounterBuffer                  {_pCounterBuffer                  },
         CounterOffset                   {_CounterOffset                   },
-        CounterBufferStateTransitionMode{_CounterBufferStateTransitionMode}
+        CounterBufferStateTransitionMode{_CounterBufferStateTransitionMode},
+        pMtlAttribs                     {_pMtlAttribs                     }
     {}
 #endif
 };

ReleaseHistory.md

@@ -2,6 +2,8 @@
 
 ## Current progress
 
+* Added `DrawMeshIndirectAttribs::pMtlAttribs` member (API256017)
+  * `DrawMeshIndirectAttribs::pMtlAttribs` allows specifying Metal object and mesh thread group sizes for `IDeviceContext::DrawMeshIndirect()`
 * Added `DrawMeshAttribsMtl` struct and `DrawMeshAttribs::pMtlAttribs` member (API256016)
   * `DrawMeshAttribsMtl` allows specifying Metal object and mesh thread group sizes for `IDeviceContext::DrawMesh()`
 * Added `TextureUpdateOffsetAlignment` and `TextureUpdateStrideAlignment` members to `BufferProperties` struct (API256015)