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Simplify #row_major matrix and matrix_flatten behaviour

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gingerBill
2024-09-07 12:21:29 +01:00
parent 90358f97d5
commit 0a08a65202
2 changed files with 41 additions and 27 deletions
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20
src/types.cpp
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@@ -1474,6 +1474,7 @@ gb_internal i64 matrix_align_of(Type *t, struct TypePath *tp) {
Type *elem = t->Matrix.elem;
i64 row_count = gb_max(t->Matrix.row_count, 1);
i64 column_count = gb_max(t->Matrix.column_count, 1);
bool pop = type_path_push(tp, elem);
if (tp->failure) {
@@ -1491,7 +1492,7 @@ gb_internal i64 matrix_align_of(Type *t, struct TypePath *tp) {
// could be maximally aligned but as a compromise, having no padding will be
// beneficial to third libraries that assume no padding
i64 total_expected_size = row_count*t->Matrix.column_count*elem_size;
i64 total_expected_size = row_count*column_count*elem_size;
// i64 min_alignment = prev_pow2(elem_align * row_count);
i64 min_alignment = prev_pow2(total_expected_size);
while (total_expected_size != 0 && (total_expected_size % min_alignment) != 0) {
@@ -1523,12 +1524,15 @@ gb_internal i64 matrix_type_stride_in_bytes(Type *t, struct TypePath *tp) {
i64 stride_in_bytes = 0;
// NOTE(bill, 2021-10-25): The alignment strategy here is to have zero padding
// It would be better for performance to pad each column so that each column
// It would be better for performance to pad each column/row so that each column/row
// could be maximally aligned but as a compromise, having no padding will be
// beneficial to third libraries that assume no padding
i64 row_count = t->Matrix.row_count;
stride_in_bytes = elem_size*row_count;
if (t->Matrix.is_row_major) {
stride_in_bytes = elem_size*t->Matrix.column_count;
} else {
stride_in_bytes = elem_size*t->Matrix.row_count;
}
t->Matrix.stride_in_bytes = stride_in_bytes;
return stride_in_bytes;
}
@@ -4217,7 +4221,11 @@ gb_internal i64 type_size_of_internal(Type *t, TypePath *path) {
case Type_Matrix: {
i64 stride_in_bytes = matrix_type_stride_in_bytes(t, path);
return stride_in_bytes * t->Matrix.column_count;
if (t->Matrix.is_row_major) {
return stride_in_bytes * t->Matrix.row_count;
} else {
return stride_in_bytes * t->Matrix.column_count;
}
}
case Type_BitField: