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[Feat] (MG_Util/SpvcSession): reflect member types from SPIR-V binary

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swung0x48
2025-08-14 10:33:15 +08:00
parent bb75045584
commit 70b440839d
2 changed files with 50 additions and 0 deletions
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MobileGL/MG_Util/ShaderTranspiler/SpvcSession.cpp
+15
View File
@@ -92,6 +92,21 @@ namespace MobileGL {
unsigned memberOffset = 0;
SPVC_CHK_RESULT(spvc_compiler_type_struct_member_offset(compiler, type, j, &memberOffset);)
metadata.plainUniformOffsetsInUBO[memberName] = memberOffset;
SizeT memberSize = 0;
SPVC_CHK_RESULT(spvc_compiler_get_declared_struct_member_size(compiler, type, j, &memberSize);)
metadata.plainUniformMemberSizesInBytes[memberName] = memberSize;
auto memberTypeId = spvc_type_get_member_type(type, j);
spvc_type memberType = spvc_compiler_get_type_handle(compiler, memberTypeId);
spvc_basetype basetype = spvc_type_get_basetype(memberType);
auto vectorSize = spvc_type_get_vector_size(memberType);
auto matCol = spvc_type_get_columns(memberType);
// auto dim = spvc_type_get_num_array_dimensions(type);
metadata.plainUniformMemberTypes[memberName] = {
.basetype = basetype,
.vectorSize = vectorSize,
.matCol = matCol,
};
}
}
}
MobileGL/MG_Util/ShaderTranspiler/SpvcSession.h
+35
View File
@@ -15,8 +15,43 @@
namespace MobileGL {
namespace MG_Util {
namespace ShaderTranspiler {
struct SpvcType {
spvc_basetype basetype = SPVC_BASETYPE_UNKNOWN;
Uint32 vectorSize = 0;
Uint32 matCol = 0;
Bool isScalar() const { return vectorSize == 1 && matCol == 1; }
Bool isVector() const { return vectorSize > 1 && matCol == 1; }
Bool isMatrix() const { return vectorSize > 1 && matCol > 1; }
static Uint32 getByteSizeOfBaseType(const spvc_basetype type) {
switch (type) {
case SPVC_BASETYPE_INT8:
case SPVC_BASETYPE_UINT8:
return 1;
case SPVC_BASETYPE_INT16:
case SPVC_BASETYPE_UINT16:
case SPVC_BASETYPE_FP16:
return 2;
case SPVC_BASETYPE_INT32:
case SPVC_BASETYPE_UINT32:
case SPVC_BASETYPE_FP32:
return 4;
case SPVC_BASETYPE_INT64:
case SPVC_BASETYPE_UINT64:
case SPVC_BASETYPE_FP64:
return 8;
default:
return 0;
}
}
};
struct SpvcMetadata {
UnorderedMap<String, unsigned> plainUniformOffsetsInUBO;
UnorderedMap<String, SizeT> plainUniformMemberSizesInBytes;
UnorderedMap<String, SpvcType> plainUniformMemberTypes;
SizeT uboSize = 0;
};