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#version 450
#include "types.comp"
layout (push_constant) uniform parameter
{
uint ne;
uint batches;
uint channels;
uint dst_w;
uint dst_h;
uint src_w;
uint src_h;
uint knl_w;
uint knl_h;
int stride_x;
int stride_y;
int pad_x;
int pad_y;
int dilation_x;
int dilation_y;
} p;
layout (binding = 0) readonly buffer A {A_TYPE knl_data[];};
layout (binding = 1) readonly buffer B {B_TYPE src_data[];};
layout (binding = 2) writeonly buffer D {D_TYPE dst_data[];};
layout(local_size_x = 512, local_size_y = 1, local_size_z = 1) in;
FLOAT_TYPE conv_2d_dw_whcn(uint idx) {
uint i0 = idx / p.dst_w;
uint dst_x = idx - i0 * p.dst_w;
uint i1 = i0 / p.dst_h;
uint dst_y = i0 - i1 * p.dst_h;
uint n = i1 / p.channels;
uint c = i1 - n * p.channels;
uint src_i = n * p.channels * p.src_h * p.src_w + c * p.src_h * p.src_w;
uint knl_i = c * p.knl_h * p.knl_w;
FLOAT_TYPE sum = 0.0;
for (uint knl_y = 0; knl_y < p.knl_h; ++knl_y) {
uint src_y = dst_y * p.stride_y + knl_y * p.dilation_y - p.pad_y;
if (src_y >= p.src_h) { // src_y < 0 will wrap to a large unsigned int
continue;
}
for (uint knl_x = 0; knl_x < p.knl_w; ++knl_x) {
uint src_x = dst_x * p.stride_x + knl_x * p.dilation_x - p.pad_x;
if (src_x >= p.src_w) { // src_x < 0 will wrap to a large unsigned int
continue;
}
FLOAT_TYPE v = FLOAT_TYPE(src_data[src_i + src_y * p.src_w + src_x]);
FLOAT_TYPE k = FLOAT_TYPE(knl_data[knl_i + knl_y * p.knl_w + knl_x]);
sum = fma(v, k, sum);
}
}
return sum;
}
FLOAT_TYPE conv_2d_dw_cwhn(uint idx) {
uint i0 = idx / p.channels;
uint c = idx - i0 * p.channels;
uint i1 = i0 / p.dst_w;
uint dst_x = i0 - i1 * p.dst_w;
uint n = i1 / p.dst_h;
uint dst_y = i1 - n * p.dst_h;
uint src_i = n * p.channels * p.src_h * p.src_w;
uint src_row = p.src_w * p.channels;
uint knl_row = p.knl_w * p.channels;
FLOAT_TYPE sum = 0.0;
for (uint knl_y = 0; knl_y < p.knl_h; ++knl_y) {
uint src_y = dst_y * p.stride_y + knl_y * p.dilation_y - p.pad_y;
if (src_y >= p.src_h) { // src_y < 0 will wrap to a large unsigned int
continue;
}
for (uint knl_x = 0; knl_x < p.knl_w; ++knl_x) {
uint src_x = dst_x * p.stride_x + knl_x * p.dilation_x - p.pad_x;
if (src_x >= p.src_w) { // src_x < 0 will wrap to a large unsigned int
continue;
}
FLOAT_TYPE v = FLOAT_TYPE(src_data[src_i + src_y * src_row + src_x * p.channels + c]);
FLOAT_TYPE k = FLOAT_TYPE(knl_data[ knl_y * knl_row + knl_x * p.channels + c]);
sum = fma(v, k, sum);
}
}
return sum;
}
void main() {
uint idx = gl_GlobalInvocationID.z * 262144 + gl_GlobalInvocationID.y * 512 + gl_GlobalInvocationID.x;
if (idx >= p.ne) {
return;
}
FLOAT_TYPE result =
#ifdef WHCN
conv_2d_dw_whcn(idx);
#else
conv_2d_dw_cwhn(idx);
#endif
dst_data[idx] = D_TYPE(result);
}
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