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rsx: Minor texture optimizations

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kd-11 2019-09-06 17:48:12 +03:00 committed by kd-11
parent efa501dac6
commit a3a0cb8c17
1 changed files with 13 additions and 12 deletions
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25
rpcs3/Emu/RSX/Common/TextureUtils.cpp
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@ -44,16 +44,8 @@ namespace
template<typename T1, typename T2>
constexpr void copy(gsl::span<T1> dst, gsl::span<T2> src)
{
if (std::is_same<T1, T2>::value)
{
std::memcpy(dst.data(), src.data(), src.size_bytes());
}
else
{
static_assert(std::is_convertible<T1, T2>::value, "Cannot convert source and destination span type.");
verify(HERE), (dst.size() == src.size());
std::copy(src.begin(), src.end(), dst.begin());
}
static_assert(std::is_convertible<T1, T2>::value, "Cannot convert source and destination span type.");
std::copy(src.begin(), src.end(), dst.begin());
}
u16 convert_rgb655_to_rgb565(const u16 bits)
@ -70,13 +62,21 @@ struct copy_unmodified_block
{
static_assert(sizeof(T) == sizeof(U), "Type size doesn't match.");
if (src_pitch_in_block == dst_pitch_in_block && !border)
{
// Fast copy
const auto data_length = width_in_block * words_per_block * row_count * depth;
copy(dst, src.subspan(0, data_length));
return;
}
const u32 width_in_words = width_in_block * words_per_block;
const u32 src_pitch_in_words = src_pitch_in_block * words_per_block;
const u32 dst_pitch_in_words = dst_pitch_in_block * words_per_block;
u32 src_offset = 0, dst_offset = 0;
const u32 h_porch = border * words_per_block;
const u32 v_porch = src_pitch_in_words * border;
u32 src_offset = h_porch, dst_offset = 0;
for (int layer = 0; layer < depth; ++layer)
{
@ -85,7 +85,8 @@ struct copy_unmodified_block
for (int row = 0; row < row_count; ++row)
{
copy(dst.subspan(dst_offset, width_in_words), src.subspan(src_offset + h_porch, width_in_words));
// NNOTE: src_offset is already shifted along the border at initialization
copy(dst.subspan(dst_offset, width_in_words), src.subspan(src_offset, width_in_words));
src_offset += src_pitch_in_words;
dst_offset += dst_pitch_in_words;