| |
|
|
| kernel void kernel_im2col_f32( |
| global float * src1, |
| ulong offset1, |
| global float * dst, |
| ulong offsetd, |
| ulong batch_offset, |
| ulong delta_offset, |
| long IW, |
| long IH, |
| long IC, |
| long OW, |
| long OH, |
| long KW, |
| long KH, |
| long pelements, |
| long CHW, |
| int s0, |
| int s1, |
| int p0, |
| int p1, |
| int d0, |
| int d1 |
| ) { |
| long i = get_global_id(0); |
| if (i >= pelements) { |
| return; |
| } |
|
|
| src1 = (global float*)((global char*)src1 + offset1); |
| dst = (global float*)((global char*)dst + offsetd); |
|
|
| long ksize = OW * KH; |
| long kx = i / ksize; |
| long kd = kx * ksize; |
| long ky = (i - kd) / OW; |
| long ix = i % OW; |
|
|
| long oh = get_group_id(1); |
| long batch = get_group_id(2) / IC; |
| long ic = get_group_id(2) % IC; |
|
|
| long iiw = ix * s0 + kx * d0 - p0; |
| long iih = oh * s1 + ky * d1 - p1; |
|
|
| long offset_dst = |
| ((batch * OH + oh) * OW + ix) * CHW + |
| (ic * (KW * KH) + ky * KW + kx); |
|
|
| if (iih < 0 || iih >= IH || iiw < 0 || iiw >= IW) { |
| dst[offset_dst] = 0.0f; |
| } else { |
| long offset_src = ic * delta_offset + batch * batch_offset; |
| dst[offset_dst] = src1[offset_src + iih * IW + iiw]; |
| } |
| } |
|
|
