godotengine/godot
1
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-11-16 14:00:40 +00:00
Code Releases Wiki Activity

Implement ETC2_R and ETC2_RG compression to etcpak

Browse Source
This commit is contained in:
BlueCube3310
2023-12-18 20:51:17 +01:00
parent bf8dd73e9d
commit 50d33aac6c
7 changed files with 548 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

142
thirdparty/etcpak/ProcessRGB.cpp vendored
View File

@@ -4181,3 +4181,145 @@ void CompressEtc2Rgba( const uint32_t* src, uint64_t* dst, uint32_t blocks, size
}
while( --blocks );
}
// -- GODOT start --
void CompressEtc2R8( const uint32_t* src, uint64_t* dst, uint32_t blocks, size_t width )
{
int w = 0;
uint8_t r[4*4];
do
{
#ifdef __SSE4_1__
__m128 px0 = _mm_castsi128_ps( _mm_loadu_si128( (__m128i*)( src + width * 0 ) ) );
__m128 px1 = _mm_castsi128_ps( _mm_loadu_si128( (__m128i*)( src + width * 1 ) ) );
__m128 px2 = _mm_castsi128_ps( _mm_loadu_si128( (__m128i*)( src + width * 2 ) ) );
__m128 px3 = _mm_castsi128_ps( _mm_loadu_si128( (__m128i*)( src + width * 3 ) ) );
_MM_TRANSPOSE4_PS( px0, px1, px2, px3 );
__m128i c0 = _mm_castps_si128( px0 );
__m128i c1 = _mm_castps_si128( px1 );
__m128i c2 = _mm_castps_si128( px2 );
__m128i c3 = _mm_castps_si128( px3 );
__m128i mask = _mm_setr_epi32( 0x0e0a0602, -1, -1, -1 );
__m128i a0 = _mm_shuffle_epi8( c0, mask );
__m128i a1 = _mm_shuffle_epi8( c1, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 3, 3, 0, 3 ) ) );
__m128i a2 = _mm_shuffle_epi8( c2, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 3, 0, 3, 3 ) ) );
__m128i a3 = _mm_shuffle_epi8( c3, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 0, 3, 3, 3 ) ) );
__m128i s0 = _mm_or_si128( a0, a1 );
__m128i s1 = _mm_or_si128( a2, a3 );
__m128i s2 = _mm_or_si128( s0, s1 );
_mm_store_si128( (__m128i*)r, s2 );
src += 4;
#else
auto ptr8 = r;
for( int x=0; x<4; x++ )
{
auto v = *src;
*ptr8++ = (v & 0xff0000) >> 16;
src += width;
v = *src;
*ptr8++ = (v & 0xff0000) >> 16;
src += width;
v = *src;
*ptr8++ = (v & 0xff0000) >> 16;
src += width;
v = *src;
*ptr8++ = (v & 0xff0000) >> 16;
src -= width * 3 - 1;
}
#endif
if( ++w == width/4 )
{
src += width * 3;
w = 0;
}
*dst++ = ProcessAlpha_ETC2( r );
}
while( --blocks );
}
void CompressEtc2RG8( const uint32_t* src, uint64_t* dst, uint32_t blocks, size_t width )
{
int w = 0;
uint8_t rg[4*4*2];
do
{
#ifdef __SSE4_1__
__m128 px0 = _mm_castsi128_ps( _mm_loadu_si128( (__m128i*)( src + width * 0 ) ) );
__m128 px1 = _mm_castsi128_ps( _mm_loadu_si128( (__m128i*)( src + width * 1 ) ) );
__m128 px2 = _mm_castsi128_ps( _mm_loadu_si128( (__m128i*)( src + width * 2 ) ) );
__m128 px3 = _mm_castsi128_ps( _mm_loadu_si128( (__m128i*)( src + width * 3 ) ) );
_MM_TRANSPOSE4_PS( px0, px1, px2, px3 );
__m128i c0 = _mm_castps_si128( px0 );
__m128i c1 = _mm_castps_si128( px1 );
__m128i c2 = _mm_castps_si128( px2 );
__m128i c3 = _mm_castps_si128( px3 );
__m128i mask = _mm_setr_epi32( 0x0e0a0602, -1, -1, -1 );
__m128i r0 = _mm_shuffle_epi8( c0, mask );
__m128i r1 = _mm_shuffle_epi8( c1, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 3, 3, 0, 3 ) ) );
__m128i r2 = _mm_shuffle_epi8( c2, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 3, 0, 3, 3 ) ) );
__m128i r3 = _mm_shuffle_epi8( c3, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 0, 3, 3, 3 ) ) );
__m128i s0 = _mm_or_si128( r0, r1 );
__m128i s1 = _mm_or_si128( r2, r3 );
__m128i s2 = _mm_or_si128( s0, s1 );
_mm_store_si128( (__m128i*)rg, s2 );
mask = _mm_setr_epi32( 0x0d090501, -1, -1, -1 );
r0 = _mm_shuffle_epi8( c0, mask );
r1 = _mm_shuffle_epi8( c1, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 3, 3, 0, 3 ) ) );
r2 = _mm_shuffle_epi8( c2, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 3, 0, 3, 3 ) ) );
r3 = _mm_shuffle_epi8( c3, _mm_shuffle_epi32( mask, _MM_SHUFFLE( 0, 3, 3, 3 ) ) );
s0 = _mm_or_si128( r0, r1 );
s1 = _mm_or_si128( r2, r3 );
s2 = _mm_or_si128( s0, s1 );
_mm_store_si128( (__m128i*)&rg[16], s2 );
src += 4;
#else
auto ptrr = rg;
auto ptrg = ptrr + 16;
for( int x=0; x<4; x++ )
{
auto v = *src;
*ptrr++ = (v & 0xff0000) >> 16;
*ptrg++ = (v & 0xff00) >> 8;
src += width;
v = *src;
*ptrr++ = (v & 0xff0000) >> 16;
*ptrg++ = (v & 0xff00) >> 8;
src += width;
v = *src;
*ptrr++ = (v & 0xff0000) >> 16;
*ptrg++ = (v & 0xff00) >> 8;
src += width;
v = *src;
*ptrr++ = (v & 0xff0000) >> 16;
*ptrg++ = (v & 0xff00) >> 8;
src -= width * 3 - 1;
}
#endif
if( ++w == width/4 )
{
src += width * 3;
w = 0;
}
*dst++ = ProcessAlpha_ETC2( rg );
*dst++ = ProcessAlpha_ETC2( &rg[16] );
}
while( --blocks );
}
// -- GODOT end --