| #include <metal_stdlib> |
| |
| using namespace metal; |
| struct Params { |
| /* 0x0000 */ uint filterDim; |
| /* 0x0004 */ uint blockDim; |
| }; |
| struct Flip { |
| /* 0x0000 */ uint value; |
| }; |
| struct tint_array_wrapper_1 { |
| float3 arr[256]; |
| }; |
| struct tint_array_wrapper { |
| tint_array_wrapper_1 arr[4]; |
| }; |
| |
| kernel void tint_symbol(texture2d<float, access::sample> tint_symbol_4 [[texture(1)]], sampler tint_symbol_5 [[sampler(0)]], texture2d<float, access::write> tint_symbol_6 [[texture(2)]], uint3 WorkGroupID [[threadgroup_position_in_grid]], uint3 LocalInvocationID [[thread_position_in_threadgroup]], uint local_invocation_index [[thread_index_in_threadgroup]], constant Params& params [[buffer(1)]], constant Flip& flip [[buffer(3)]]) { |
| threadgroup tint_array_wrapper tint_symbol_3; |
| if ((local_invocation_index == 0u)) { |
| tint_array_wrapper const tint_symbol_2 = {.arr={}}; |
| tint_symbol_3 = tint_symbol_2; |
| } |
| threadgroup_barrier(mem_flags::mem_threadgroup); |
| uint const filterOffset = ((params.filterDim - 1u) / 2u); |
| int2 const dims = int2(tint_symbol_4.get_width(0), tint_symbol_4.get_height(0)); |
| int2 const baseIndex = (int2(((WorkGroupID.xy * uint2(params.blockDim, 4u)) + (LocalInvocationID.xy * uint2(4u, 1u)))) - int2(int(filterOffset), 0)); |
| for(uint r = 0u; (r < 4u); r = (r + 1u)) { |
| for(uint c = 0u; (c < 4u); c = (c + 1u)) { |
| int2 loadIndex = (baseIndex + int2(int(c), int(r))); |
| if ((flip.value != 0u)) { |
| loadIndex = loadIndex.yx; |
| } |
| tint_symbol_3.arr[r].arr[((4u * LocalInvocationID.x) + c)] = tint_symbol_4.sample(tint_symbol_5, ((float2(loadIndex) + float2(0.25f, 0.25f)) / float2(dims)), level(0.0f)).rgb; |
| } |
| } |
| threadgroup_barrier(mem_flags::mem_threadgroup); |
| for(uint r = 0u; (r < 4u); r = (r + 1u)) { |
| for(uint c = 0u; (c < 4u); c = (c + 1u)) { |
| int2 writeIndex = (baseIndex + int2(int(c), int(r))); |
| if ((flip.value != 0u)) { |
| writeIndex = writeIndex.yx; |
| } |
| uint const center = ((4u * LocalInvocationID.x) + c); |
| if ((((center >= filterOffset) && (center < (256u - filterOffset))) && all((writeIndex < dims)))) { |
| float3 acc = float3(0.0f, 0.0f, 0.0f); |
| for(uint f = 0u; (f < params.filterDim); f = (f + 1u)) { |
| uint i = ((center + f) - filterOffset); |
| acc = (acc + ((1.0f / float(params.filterDim)) * tint_symbol_3.arr[r].arr[i])); |
| } |
| tint_symbol_6.write(float4(acc, 1.0f), uint2(writeIndex)); |
| } |
| } |
| } |
| return; |
| } |
| |