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opencl flac encoder

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chudov
2010-10-11 08:46:36 +00:00
parent 04ca40e627
commit badfb2fec8
3 changed files with 108 additions and 47 deletions
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19
CUETools.Codecs.FLACCL/flac.cl
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@@ -621,18 +621,18 @@ void cudaChooseBestMethod(
tasks[tid + taskCount * get_group_id(1)].data.size = shared.length[tid];
int l1 = shared.length[tid];
for (int sh = 4; sh > 0; sh --)
for (int l = 16; l > 0; l >>= 1)
{
if (tid < (1 << sh))
if (tid < l)
{
int l2 = shared.length[tid + (1 << sh)];
shared.index[tid] = shared.index[tid + ((l2 < l1) << sh)];
int l2 = shared.length[tid + l];
shared.index[tid] = shared.index[tid + select(0, l, l2 < l1)];
shared.length[tid] = l1 = min(l1, l2);
}
barrier(CLK_LOCAL_MEM_FENCE);
}
if (tid == 0)
tasks[taskCount * get_group_id(1)].data.best_index = taskCount * get_group_id(1) + shared.index[shared.length[1] < shared.length[0]];
tasks[taskCount * get_group_id(1)].data.best_index = taskCount * get_group_id(1) + shared.index[0];
}
__kernel __attribute__((reqd_work_group_size(64, 1, 1)))
@@ -921,13 +921,14 @@ void cudaFindPartitionOrder(
if (get_local_id(0) < 32)
shared.index[get_local_id(0)] = get_local_id(0);
barrier(CLK_LOCAL_MEM_FENCE);
//atom_min(shared.index[get_local_id(0)],);
int l1 = get_local_id(0) <= max_porder ? shared.length[get_local_id(0)] : 0xfffffff;
for (int sh = 3; sh >= 0; sh --)
for (int l = 8; l > 0; l >>= 1)
{
if (get_local_id(0) < (1 << sh))
if (get_local_id(0) < l)
{
int l2 = shared.length[get_local_id(0) + (1 << sh)];
shared.index[get_local_id(0)] = shared.index[get_local_id(0) + ((l2 < l1) << sh)];
int l2 = shared.length[get_local_id(0) + l];
shared.index[get_local_id(0)] = shared.index[get_local_id(0) + select(0, l, l2 < l1)];
shared.length[get_local_id(0)] = l1 = min(l1, l2);
}
barrier(CLK_LOCAL_MEM_FENCE);