drewcassidy/nvidia-texture-tools
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Minor optimizations.

Browse Source 
Fix DXT1a support.
This commit is contained in:
castano
2008-02-04 10:01:43 +00:00
parent 42da2d63ce
commit 7b433f08f3
6 changed files with 56 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/nvtt/squish/simd_sse.h
View File

@ -35,6 +35,12 @@
#define SQUISH_SSE_SPLAT( a ) \
( ( a ) | ( ( a ) << 2 ) | ( ( a ) << 4 ) | ( ( a ) << 6 ) )
#ifdef __GNUC__
# define SQUISH_ALIGN_16 __attribute__ ((__aligned__ (16)))
#else
# define SQUISH_ALIGN_16 __declspec(align(16))
#endif
namespace squish {
#define VEC4_CONST( X ) Vec4( _mm_set1_ps( X ) )
@ -55,7 +61,12 @@ public:
m_v = arg.m_v;
return *this;
}
Vec4( const float * v )
{
m_v = _mm_load_ps( v );
}
Vec4( float x, float y, float z, float w )
{
m_v = _mm_setr_ps( x, y, z, w );
@ -63,11 +74,7 @@ public:
Vec3 GetVec3() const
{
#ifdef __GNUC__
__attribute__ ((__aligned__ (16))) float c[4];
#else
__declspec(align(16)) float c[4];
#endif
SQUISH_ALIGN_16 float c[4];
_mm_store_ps( c, m_v );
return Vec3( c[0], c[1], c[2] );
}