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Vulkan: Enable subgroupShuffle.

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It is used as workaround for the missing subgroupBroadcastDynamicId flag on SPIR-V < 1.5.
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degasus
2023-03-24 21:42:43 +01:00
parent 1571098783
commit 196c684ac1
3 changed files with 14 additions and 3 deletions
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8
Data/Sys/Shaders/asciiart.glsl
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@ -21,6 +21,14 @@ const uint UNROLL_SIMD = 3; // max MAX_CHARS / 32
// #undef SUPPORTS_SUBGROUP_REDUCTION
#ifdef API_VULKAN
// By default, subgroupBroadcast only supports compile time constants as index.
// However we need an uniform instead. This is always supported in OpenGL,
// but in Vulkan only in SPIR-V >= 1.5.
// So fall back to subgroupShuffle on Vulkan instead.
#define subgroupBroadcast subgroupShuffle
#endif
/*
The header-only font
We have 96 (ASCII) characters, each of them is 12 pixels high and 8 pixels wide.