amber/hack_scf/sclamp.amber

#!amber

SHADER compute sclamp_shader OPENCL-C
kernel void foo(global int* out, global int* a, global int* b, global int* c) {
  int gid = get_global_id(0);
  out[gid] = clamp(a[gid], b[gid], c[gid]);
}
END

BUFFER a DATA_TYPE int32 DATA
-10 42 0 -1 5
END
BUFFER b DATA_TYPE int32 DATA
42 -10 0 -3 3
END
BUFFER c DATA_TYPE int32 DATA
48 -1 1 1 6
END
BUFFER expect DATA_TYPE int32 DATA
42 -1 0 -1 5
END
BUFFER out1 DATA_TYPE int32 SIZE 5 FILL 13
BUFFER out2 DATA_TYPE int32 SIZE 5 FILL 13

PIPELINE compute sclamp_pipeline
  ATTACH sclamp_shader ENTRY_POINT foo \
    SPECIALIZE 0 AS uint32 5 \
    SPECIALIZE 1 AS uint32 1 \
    SPECIALIZE 2 AS uint32 1

  BIND BUFFER out1 AS storage DESCRIPTOR_SET 0 BINDING 0
  BIND BUFFER a AS storage DESCRIPTOR_SET 0 BINDING 1
  BIND BUFFER b AS storage DESCRIPTOR_SET 0 BINDING 2
  BIND BUFFER c AS storage DESCRIPTOR_SET 0 BINDING 3
END

DERIVE_PIPELINE scf_pipeline FROM sclamp_pipeline
  BIND BUFFER out2 AS storage DESCRIPTOR_SET 0 BINDING 0
  COMPILE_OPTIONS sclamp_shader
    -hack-scf
  END
END

RUN sclamp_pipeline 1 1 1
RUN scf_pipeline 1 1 1

EXPECT out1 EQ_BUFFER expect
EXPECT out2 EQ_BUFFER expect