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bluseliu50
29 lines
1.3 KiB
C
29 lines
1.3 KiB
C
// SPDX-License-Identifier: MIT
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// Bounded original function constants for explicit offline specialization.
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#pragma once
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#include "OfflineMetalWire.h"
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enum { OFFLINE_METAL_MAX_CONSTANTS=16 };
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typedef struct {uint64_t type,index,bytes,named;char name[128];uint8_t data[32];} OMFunctionConstant;
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typedef struct {OMFunction function;uint64_t count;} OMSpecializedFunction;
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static_assert(sizeof(OMFunctionConstant)==192 && sizeof(OMSpecializedFunction)==144,"Function constant wire ABI");
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static_assert(sizeof(OMSpecializedFunction)+OFFLINE_METAL_MAX_CONSTANTS*sizeof(OMFunctionConstant)<=4080,"Bounded specialization transaction");
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// Only qualified scalar and 2/4-component value sizes. Matrices, 3-component
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// alignment profiles, aggregate and pointer types refuse explicitly.
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static inline uint64_t OMFunctionConstantBytes(uint64_t type) {
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switch(type) {
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case 3:case 29:case 33:return 4; // float/int/uint
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case 4:case 30:case 34:return 8;
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case 6:case 32:case 36:return 16;
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case 16:case 37:case 41:return 2; // half/short/ushort
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case 17:case 38:case 42:return 4;
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case 19:case 40:case 44:return 8;
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case 45:case 49:case 53:return 1; // char/uchar/bool
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case 46:case 50:case 54:return 2;
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case 48:case 52:case 56:return 4;
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case 81:case 85:return 8; // long/ulong
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case 82:case 86:return 16;
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case 84:case 88:return 32;
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default:return 0;
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}
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}
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