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optimizations

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This commit is contained in:
chudov
2010-11-02 07:37:07 +00:00
parent 5da2d81c11
commit 399611b01f
1 changed files with 25 additions and 3 deletions
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28
CUETools.Codecs.FLACCL/flac.cl
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@@ -474,6 +474,13 @@ void clEstimateResidual(
barrier(CLK_LOCAL_MEM_FENCE);
#ifdef AMD
float4 fc0 = vload4(0, &fcoef[0]);
float4 fc1 = vload4(1, &fcoef[0]);
#if MAX_ORDER > 8
float4 fc2 = vload4(2, &fcoef[0]);
#endif
#endif
for (int pos = 0; pos < bs; pos += GROUP_SIZE)
{
// fetch samples
@@ -484,10 +491,20 @@ void clEstimateResidual(
// compute residual
__local float* dptr = &data[tid + GROUP_SIZE - ro];
float4 sum = vload4(0, &fcoef[0]) * vload4(0, dptr)
float4 sum
#ifdef AMD
= fc0 * vload4(0, dptr)
+ fc1 * vload4(1, dptr)
#else
= vload4(0, &fcoef[0]) * vload4(0, dptr)
+ vload4(1, &fcoef[0]) * vload4(1, dptr)
#endif
#if MAX_ORDER > 8
#ifdef AMD
+ fc2 * vload4(2, dptr)
#else
+ vload4(2, &fcoef[0]) * vload4(2, dptr)
#endif
#if MAX_ORDER > 12
+ vload4(3, &fcoef[0]) * vload4(3, dptr)
#if MAX_ORDER > 16
@@ -502,15 +519,20 @@ void clEstimateResidual(
int t = convert_int_rte(nextData + sum.x + sum.y + sum.z + sum.w);
barrier(CLK_LOCAL_MEM_FENCE);
#ifdef AMD
data[tid] = nextData;
// ensure we're within frame bounds
t = select(0, t, offs >= ro && offs < bs);
// overflow protection
t = iclamp(t, -0x7fffff, 0x7fffff);
// convert to unsigned
#ifdef AMD
data[tid] = nextData;
atom_add(&psum[min(63,offs >> partOrder)], (t << 1) ^ (t >> 31));
#else
// ensure we're within frame bounds
t = select(0, t, offs >= ro && offs < bs);
// overflow protection
t = iclamp(t, -0x7fffff, 0x7fffff);
// convert to unsigned
data[tid] = (t << 1) ^ (t >> 31);
barrier(CLK_LOCAL_MEM_FENCE);
int ps = (1 << partOrder) - 1;