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SSE CheckSolid.

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This commit is contained in:
Bartosz Taudul 2019-06-27 19:26:32 +02:00
parent 3d590b6b8c
commit 137b28e110
1 changed files with 28 additions and 0 deletions
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28
client/TracyDxt1.cpp
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@ -30,6 +30,33 @@ static inline uint16_t to565( uint8_t r, uint8_t g, uint8_t b )
static uint64_t CheckSolid( const uint8_t* src ) static uint64_t CheckSolid( const uint8_t* src )
{ {
#ifdef __SSE4_1__
__m128i mask = _mm_set1_epi32( 0xF8FCF8 );
__m128i d0 = _mm_and_si128( _mm_loadu_si128(((__m128i*)src) + 0), mask );
__m128i d1 = _mm_and_si128( _mm_loadu_si128(((__m128i*)src) + 1), mask );
__m128i d2 = _mm_and_si128( _mm_loadu_si128(((__m128i*)src) + 2), mask );
__m128i d3 = _mm_and_si128( _mm_loadu_si128(((__m128i*)src) + 3), mask );
__m128i c = _mm_shuffle_epi32(d0, _MM_SHUFFLE(0, 0, 0, 0));
__m128i c0 = _mm_cmpeq_epi8(d0, c);
__m128i c1 = _mm_cmpeq_epi8(d1, c);
__m128i c2 = _mm_cmpeq_epi8(d2, c);
__m128i c3 = _mm_cmpeq_epi8(d3, c);
__m128i m0 = _mm_and_si128(c0, c1);
__m128i m1 = _mm_and_si128(c2, c3);
__m128i m = _mm_and_si128(m0, m1);
if (!_mm_testc_si128(m, _mm_set1_epi32(-1)))
{
return 0;
}
else
{
return to565( src[0], src[1], src[2] );
}
#else
const auto ref = to565( src[0], src[1], src[2] ); const auto ref = to565( src[0], src[1], src[2] );
src += 4; src += 4;
for( int i=1; i<16; i++ ) for( int i=1; i<16; i++ )
@ -41,6 +68,7 @@ static uint64_t CheckSolid( const uint8_t* src )
src += 4; src += 4;
} }
return uint64_t( ref ); return uint64_t( ref );
#endif
} }
static const uint8_t IndexTable[4] = { 1, 3, 2, 0 }; static const uint8_t IndexTable[4] = { 1, 3, 2, 0 };