1 /*
2  * Copyright 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef IMG_UTILS_STRIP_SOURCE_H
18 #define IMG_UTILS_STRIP_SOURCE_H
19 
20 #include <img_utils/Output.h>
21 
22 #include <cutils/compiler.h>
23 #include <utils/Errors.h>
24 
25 #include <stdint.h>
26 
27 namespace android {
28 namespace img_utils {
29 
30 /**
31  * This class acts as a data source for strips set in a TiffIfd.
32  */
33 class ANDROID_API StripSource {
34     public:
35         virtual ~StripSource();
36 
37         /**
38          * Write count bytes to the stream.
39          *
40          * Returns OK on success, or a negative error code.
41          */
42         virtual status_t writeToStream(Output& stream, uint32_t count) = 0;
43 
44         /**
45          * Return the source IFD.
46          */
47         virtual uint32_t getIfd() const = 0;
48 };
49 
50 } /*namespace img_utils*/
51 } /*namespace android*/
52 
53 #endif /*IMG_UTILS_STRIP_SOURCE_H*/
54