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Add DrawMeshIndirectAttribs::pMtlAttribs for Metal mesh draw threadgroup sizes (API256017) #789

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Merged
TheMostDiligent merged 3 commits into from
Apr 27, 2026
+364 −31
Merged

Add DrawMeshIndirectAttribs::pMtlAttribs for Metal mesh draw threadgroup sizes (API256017) #789

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c0cb0f3
Add DrawMeshIndirectAttribs::pMtlAttribs for Metal mesh draw threadgr…
MikhailGorobets Apr 27, 2026
a00a3b8
Tests: Add native MSL mesh shader tests
MikhailGorobets Apr 27, 2026
be63583
MeshShaderTest: don't use auto where unnecessary
TheMostDiligent Apr 27, 2026
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2 changes: 1 addition & 1 deletion Graphics/GraphicsEngine/interface/APIInfo.h
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Expand Up @@ -30,7 +30,7 @@
/// \file
/// Diligent API information

#define DILIGENT_API_VERSION 256016
#define DILIGENT_API_VERSION 256017

#include "../../../Primitives/interface/BasicTypes.h"

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12 changes: 10 additions & 2 deletions Graphics/GraphicsEngine/interface/DeviceContext.h
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Expand Up @@ -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 {}
Expand All @@ -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
};
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2 changes: 2 additions & 0 deletions ReleaseHistory.md
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Expand Up @@ -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)
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