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[ET-VK] Rearranging code in permute op shader to reduce heavy math ops and improve performance. #7095

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merged 1 commit into from
Nov 26, 2024
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[ET-VK] Rearranging code in permute op shader to reduce heavy math ops and improve performance. #7095

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36 changes: 22 additions & 14 deletions backends/vulkan/runtime/graph/ops/glsl/permute.glsl
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Original file line number Diff line number Diff line change
Expand Up @@ -36,8 +36,10 @@ layout(set = 0, binding = 4) uniform PRECISION restrict Block {

layout(local_size_x_id = 0, local_size_y_id = 1, local_size_z_id = 2) in;

#extension GL_EXT_shader_explicit_arithmetic_types_int16 : require

void main() {
const ivec3 pos = ivec3(gl_GlobalInvocationID);
const u16vec3 pos = u16vec3(gl_GlobalInvocationID);

if (any(greaterThanEqual(pos, out_limits))) {
return;
Expand All @@ -46,28 +48,34 @@ void main() {
const int out_channel_4up = int(ch_info.x);
const int in_channel_4up = int(ch_info.y);
const int out_batch = int(sizes[3]);
const int max_dst_index = out_batch * out_channel_4up;
VEC4_T outval = VEC4_T(0.0);
ivec4 v = ivec4(0); // holds b,c,h,w

v[out_ndims[2]] = pos.y;
v[out_ndims[3]] = pos.x;

const int dst_index = pos.z << 2;
int dst_out_index = dst_index / out_channel_4up;
int dst_out_lane = dst_index % out_channel_4up;

for (int j = 0; j < 4; ++j) {
int dst_index = pos.z * 4 + j;
if (dst_index >= max_dst_index) {
for (int j = 0; j < 4; ++j, ++dst_out_lane) {
if (dst_out_index >= out_batch) {
// out of range
break;
}

ivec4 v = ivec4(0); // holds b,c,h,w
v[out_ndims[0]] = dst_index / out_channel_4up;
v[out_ndims[1]] = dst_index % out_channel_4up;
v[out_ndims[2]] = pos.y;
v[out_ndims[3]] = pos.x;
if (dst_out_lane == out_channel_4up) {
dst_out_lane = 0;
dst_out_index++;
}

v[out_ndims[0]] = dst_out_index;
v[out_ndims[1]] = dst_out_lane;

int src_index = v[0] * in_channel_4up + v[1];
int w = v[3];
int h = v[2];

VEC4_T inval = VEC4_T(texelFetch(image_in, ivec3(w, h, src_index / 4), 0));
outval[j] = inval[src_index % 4];
VEC4_T inval = VEC4_T(texelFetch(image_in, u16vec3(v[3], v[2], src_index >> 2), 0));
outval[j] = inval[src_index & 0x3];
}

imageStore(image_out, pos, outval);
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