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[Base] Fix `copy_and_swap_16_in_32_aligned`

This commit is contained in:
Joel Linn 2022-01-22 14:07:35 +01:00 committed by Triang3l
parent 0316d1a054
commit e4ae1d8b2f
1 changed files with 23 additions and 13 deletions
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36
src/xenia/base/memory.cc
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@ -188,8 +188,8 @@ void copy_and_swap_64_unaligned(void* dest_ptr, const void* src_ptr,
void copy_and_swap_16_in_32_aligned(void* dest_ptr, const void* src_ptr,
size_t count) {
auto dest = reinterpret_cast<uint64_t*>(dest_ptr);
auto src = reinterpret_cast<const uint64_t*>(src_ptr);
auto dest = reinterpret_cast<uint32_t*>(dest_ptr);
auto src = reinterpret_cast<const uint32_t*>(src_ptr);
size_t i;
for (i = 0; i + 4 <= count; i += 4) {
__m128i input = _mm_load_si128(reinterpret_cast<const __m128i*>(&src[i]));
@ -205,8 +205,8 @@ void copy_and_swap_16_in_32_aligned(void* dest_ptr, const void* src_ptr,
void copy_and_swap_16_in_32_unaligned(void* dest_ptr, const void* src_ptr,
size_t count) {
auto dest = reinterpret_cast<uint64_t*>(dest_ptr);
auto src = reinterpret_cast<const uint64_t*>(src_ptr);
auto dest = reinterpret_cast<uint32_t*>(dest_ptr);
auto src = reinterpret_cast<const uint32_t*>(src_ptr);
size_t i;
for (i = 0; i + 4 <= count; i += 4) {
__m128i input = _mm_loadu_si128(reinterpret_cast<const __m128i*>(&src[i]));
@ -332,10 +332,15 @@ void copy_and_swap_16_in_32_aligned(void* dst, const void* src, size_t count) {
void copy_and_swap_16_in_32_unaligned(void* dst_ptr, const void* src_ptr,
size_t count) {
auto dst = reinterpret_cast<uint64_t*>(dst_ptr);
auto src = reinterpret_cast<const uint64_t*>(src_ptr);
for (size_t i = 0; i < count; ++i) {
dst[i] = (src[i] >> 16) | (src[i] << 16);
auto dst = reinterpret_cast<uint16_t*>(dst_ptr);
auto src = reinterpret_cast<const uint16_t*>(src_ptr);
while (count > 0) {
uint16_t word0 = *src++;
uint16_t word1 = *src++;
*dst++ = word1;
*dst++ = word0;
count--;
}
}
@ -385,12 +390,17 @@ void copy_and_swap_16_in_32_aligned(void* dest, const void* src, size_t count) {
return copy_and_swap_16_in_32_unaligned(dest, src, count);
}
void copy_and_swap_16_in_32_unaligned(void* dest_ptr, const void* src_ptr,
void copy_and_swap_16_in_32_unaligned(void* dst_ptr, const void* src_ptr,
size_t count) {
auto dest = reinterpret_cast<uint64_t*>(dest_ptr);
auto src = reinterpret_cast<const uint64_t*>(src_ptr);
for (size_t i = 0; i < count; ++i) {
dest[i] = (src[i] >> 16) | (src[i] << 16);
auto dst = reinterpret_cast<uint16_t*>(dst_ptr);
auto src = reinterpret_cast<const uint16_t*>(src_ptr);
while (count > 0) {
uint16_t word0 = *src++;
uint16_t word1 = *src++;
*dst++ = word1;
*dst++ = word0;
count--;
}
}