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Improve matrix indices to offset logic

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gingerBill
2021-11-08 12:15:57 +00:00
parent 23f0fbc376
commit a674e842d0
3 changed files with 18 additions and 11 deletions
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5
src/types.cpp
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@@ -1406,15 +1406,16 @@ i64 matrix_indices_to_offset(Type *t, i64 row_index, i64 column_index) {
GB_ASSERT(0 <= row_index && row_index < t->Matrix.row_count);
GB_ASSERT(0 <= column_index && column_index < t->Matrix.column_count);
i64 stride_elems = matrix_type_stride_in_elems(t);
return stride_elems*column_index + row_index;
// NOTE(bill): Column-major layout internally
return row_index + stride_elems*column_index;
}
i64 matrix_row_major_index_to_offset(Type *t, i64 index) {
t = base_type(t);
GB_ASSERT(t->kind == Type_Matrix);
i64 column_index = index%t->Matrix.column_count;
i64 row_index = index/t->Matrix.column_count;
i64 column_index = index%t->Matrix.column_count;
return matrix_indices_to_offset(t, row_index, column_index);
}
i64 matrix_column_major_index_to_offset(Type *t, i64 index) {