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Move RDO threshold logic to tables.

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This commit is contained in:
Bartosz Taudul
2020-06-11 14:02:11 +02:00
parent 2ab605d232
commit 3992eb0542
2 changed files with 31 additions and 48 deletions
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55
server/TracyTextureCompression.cpp
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@@ -84,6 +84,10 @@ static tracy_force_inline int max3( int a, int b, int c )
}
}
static constexpr int TrTbl1[] = { 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 };
static constexpr int TrTbl2[] = { 12, 12, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 };
static constexpr int TrTbl3[] = { 48, 48, 48, 32, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24 };
void TextureCompression::Rdo( char* data, size_t blocks )
{
assert( blocks > 0 );
@@ -124,22 +128,7 @@ void TextureCompression::Rdo( char* data, size_t blocks )
const int maxChan1 = max3( r0-1, g0, b0-2 );
const int maxDelta1 = max3( dr-1, dg, db-2 );
const int tr1a = 16;
const int tr1b = 45;
int tr1;
if( maxChan1 < tr1a )
{
tr1 = 12;
}
else if( maxChan1 < tr1b )
{
tr1 = 6;
}
else
{
tr1 = 3;
}
const int tr1 = TrTbl1[maxChan1 / 4];
if( maxDelta1 <= tr1 )
{
uint64_t blk =
@@ -152,22 +141,7 @@ void TextureCompression::Rdo( char* data, size_t blocks )
{
const int maxChan23 = max3( r0-2, g0, b0-5 );
const int maxDelta23 = max3( dr-2, dg, db-5 );
const int tr2a = 32;
const int tr2b = 48;
int tr2 = 0;
if( maxChan23 < tr2a )
{
tr2 = 12;
}
else if( maxChan23 < tr2b )
{
tr2 = 6;
}
else
{
tr2 = 3;
}
const int tr2 = TrTbl2[maxChan23 / 16];
if( maxDelta23 <= tr2 )
{
idx &= 0x55555555;
@@ -175,22 +149,7 @@ void TextureCompression::Rdo( char* data, size_t blocks )
}
else
{
const int tr3a = 48;
const int tr3b = 64;
int tr3;
if( maxChan23 < tr3a )
{
tr3 = 48;
}
else if( maxChan23 < tr3b )
{
tr3 = 32;
}
else
{
tr3 = 24;
}
const int tr3 = TrTbl3[maxChan23 / 16];
if( maxDelta23 <= tr3 )
{
uint64_t c = c1 | ( uint64_t( c0 ) << 16 );