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      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