1// Copyright (C) 2011 The Android Open Source Project
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//      http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#include "ip.rsh"
16#pragma rs_fp_relaxed
17
18uchar alpha = 0x0;
19
20uchar4 RS_KERNEL setImageAlpha(uchar4 in, uint32_t x, uint32_t y) {
21    uchar4 out;
22    out.rgba = convert_uchar4((convert_uint4(in.rgba) * alpha) >> (uint4)8);
23    out.a = alpha;
24    return out;
25}
26
27