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Vectorize a couple fetch functions

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These C-coded vectorized functions are expected to be short lived.
They're basically a proof-of-concept for dynamically generated fetch
routines.
This commit is contained in:
Ian Romanick 2008-02-11 15:27:13 -08:00
parent 0230c56ed0
commit c290367985
1 changed files with 42 additions and 4 deletions
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46
src/mesa/pipe/cell/spu/spu_vertex_fetch.c
View file

@ -46,6 +46,48 @@
static const vec_float4 defaults = { 0.0, 0.0, 0.0, 1.0 };
static INLINE qword
fetch_unaligned_qword(const void *ptr)
{
const int shift = (unsigned)(ptr) & 0x0f;
const qword x = *(qword *)(ptr);
const qword y = *(qword *)(ptr + 16);
return si_or((qword) spu_slqwbyte(x, shift),
(qword) spu_rlmaskqwbyte(y, shift - 16));
}
static qword
fetch_R32G32B32A32_FLOAT(const void *ptr)
{
return fetch_unaligned_qword(ptr);
}
static qword
fetch_R32G32B32A32_USCALED(const void *ptr)
{
return si_cuflt(fetch_unaligned_qword(ptr), 0);
}
static qword
fetch_R32G32B32A32_UNORM(const void *ptr)
{
qword x = si_cuflt(fetch_unaligned_qword(ptr), 0);
vec_float4 scale = spu_splats(1.0f / 255.0f);
return si_fm(x, (qword) scale);
}
static qword
fetch_R32G32B32A32_SSCALED(const void *ptr)
{
return si_csflt(fetch_unaligned_qword(ptr), 0);
}
/**
* Fetch a float[4] vertex attribute from memory, doing format/type
* conversion as needed.
@ -90,22 +132,18 @@ FETCH_ATTRIB( R64G64B64_FLOAT, 3, CVT_64_FLOAT )
FETCH_ATTRIB( R64G64_FLOAT, 2, CVT_64_FLOAT )
FETCH_ATTRIB( R64_FLOAT, 1, CVT_64_FLOAT )
FETCH_ATTRIB( R32G32B32A32_FLOAT, 4, CVT_32_FLOAT )
FETCH_ATTRIB( R32G32B32_FLOAT, 3, CVT_32_FLOAT )
FETCH_ATTRIB( R32G32_FLOAT, 2, CVT_32_FLOAT )
FETCH_ATTRIB( R32_FLOAT, 1, CVT_32_FLOAT )
FETCH_ATTRIB( R32G32B32A32_USCALED, 4, CVT_32_USCALED )
FETCH_ATTRIB( R32G32B32_USCALED, 3, CVT_32_USCALED )
FETCH_ATTRIB( R32G32_USCALED, 2, CVT_32_USCALED )
FETCH_ATTRIB( R32_USCALED, 1, CVT_32_USCALED )
FETCH_ATTRIB( R32G32B32A32_SSCALED, 4, CVT_32_SSCALED )
FETCH_ATTRIB( R32G32B32_SSCALED, 3, CVT_32_SSCALED )
FETCH_ATTRIB( R32G32_SSCALED, 2, CVT_32_SSCALED )
FETCH_ATTRIB( R32_SSCALED, 1, CVT_32_SSCALED )
FETCH_ATTRIB( R32G32B32A32_UNORM, 4, CVT_32_UNORM )
FETCH_ATTRIB( R32G32B32_UNORM, 3, CVT_32_UNORM )
FETCH_ATTRIB( R32G32_UNORM, 2, CVT_32_UNORM )
FETCH_ATTRIB( R32_UNORM, 1, CVT_32_UNORM )