MNN/source/backend/vulkan/execution/glsl/scale.comp

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#version 440 core
layout(std140) buffer;
layout(set=0, binding=0, rgba16f) writeonly restrict uniform image3D uOutput;
layout(set=0, binding=1) uniform sampler3D uInput;
layout(set = 0, binding = 2) readonly buffer scaleBuffer{
vec4 data[];
}uScale;
layout(set = 0, binding = 3) readonly buffer biasBuffer{
vec4 data[];
}uBias;
layout(set = 0, binding = 4) uniform constBuffer{
ivec4 imgSize;
int channel;
float eps;
}uConst;
layout(local_size_x = 16, local_size_y = 16, local_size_z = 1) in;
void main()
{
ivec3 pos = ivec3(gl_GlobalInvocationID);
ivec3 imgSize = uConst.imgSize.xyz;
if(all(lessThan(pos, imgSize)))
{
int channelIndex = pos.z;
vec4 scale = uScale.data[channelIndex];
vec4 bias = uBias.data[channelIndex];
vec4 color = texelFetch(uInput, pos, 0);
vec4 res = color * scale + bias;
imageStore(uOutput, pos, res);
}
}