| commit | fd7e54bcd527daeb0e400c200aab4f66730525e6 | [log] [tgz] |
|---|---|---|
| author | Jeff Noyle <jeffno@microsoft.com> | Wed May 15 21:49:22 2024 |
| committer | GitHub <noreply@github.com> | Wed May 15 21:49:22 2024 |
| tree | 349d023e90a15e4cbade952b8ea3cf37cb2047a0 | |
| parent | d9caef5289dc7fee304817963ea55d229a1eae4d [diff] |
Pix: Cope with group shared AS->MS payload (#6619) This change copes with the AS->MS payload being placed in group-shared by the application (and MSFT's samples do indeed do this). (TIL, thanks to pow2clk, that the spec says that the payload counts against the group-shared total, implying, if not explicitly stating, that at least on some platforms, the payload will be in group-shared anyway.) The MS pass needs to be given data from the AS about the AS's thread group topology, and this is done by extending the payload struct to add three uints. This can't be done when the payload is resident in group-shared, of course, because that would change the layout of group-shared memory. So the new approach here is to copy the payload to a new alloca (in the default address space) struct with the members of the base struct plus the extended data the MS needs, and then to copy piece-wise because llvm.memcpy isn't appropriate for group-shared-to-normal address space copies.
The DirectX Shader Compiler project includes a compiler and related tools used to compile High-Level Shader Language (HLSL) programs into DirectX Intermediate Language (DXIL) representation. Applications that make use of DirectX for graphics, games, and computation can use it to generate shader programs.
For more information, see the Wiki.
Visit the DirectX Landing Page for more resources for DirectX developers.
The starting point of the project is a fork of the LLVM and Clang projects, modified to accept HLSL and emit a validated container that can be consumed by GPU drivers.
At the moment, the DirectX HLSL Compiler provides the following components:
dxc.exe, a command-line tool that can compile HLSL programs for shader model 6.0 or higher
dxcompiler.dll, a DLL providing a componentized compiler, assembler, disassembler, and validator
dxilconv.dll, a DLL providing a converter from DXBC (older shader bytecode format)
various other tools based on the above components
The Microsoft Windows SDK releases include a supported version of the compiler and validator.
The goal of the project is to allow the broader community of shader developers to contribute to the language and representation of shader programs, maintaining the principles of compatibility and supportability for the platform. It's currently in active development across two axes: language evolution (with no impact to DXIL representation), and surfacing hardware capabilities (with impact to DXIL, and thus requiring coordination with GPU implementations).
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NVIDIA's r396 drivers (r397.64 and later) provide release mode support for DXIL 1.1 and Shader Model 6.1 on Win10 1709 and later, and experimental mode support for DXIL 1.2 and Shader Model 6.2 on Win10 1803 and later. These drivers also support DXR in experimental mode.
Drivers can be downloaded from geforce.com.
AMD’s driver (Radeon Software Adrenalin Edition 18.4.1 or later) provides release mode support for DXIL 1.1 and Shader Model 6.1. Drivers can be downloaded from AMD's download site.
Intel's 15.60 drivers (15.60.0.4849 and later) support release mode for DXIL 1.0 and Shader Model 6.0 as well as release mode for DXIL 1.1 and Shader Model 6.1 (View Instancing support only).
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