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author | Ruben Brunk <rubenbrunk@google.com> | 2013-06-28 20:02:54 -0700 |
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committer | Ruben Brunk <rubenbrunk@google.com> | 2013-07-11 13:41:29 -0700 |
commit | 0a7720cce4068a08a5b9a06cefa537de846fa099 (patch) | |
tree | 30ab88f07cf62a44a95db2804c6d760026fbab50 /jni_jpegstream/src/stream_wrapper.h | |
parent | a053a3179cfee3d2bb666eff5f4f03a96b092e04 (diff) | |
download | android_packages_apps_Snap-0a7720cce4068a08a5b9a06cefa537de846fa099.tar.gz android_packages_apps_Snap-0a7720cce4068a08a5b9a06cefa537de846fa099.tar.bz2 android_packages_apps_Snap-0a7720cce4068a08a5b9a06cefa537de846fa099.zip |
Added jpeg streaming classes.
- Provides streaming operations for decompressing/compressing
JPEG files.
- Allows pixel operations to be performed on large JPEG images
without holding the entire bitmap in memory.
Change-Id: I597ddf282b59d2ba6d6bca4722208121e3728f94
Diffstat (limited to 'jni_jpegstream/src/stream_wrapper.h')
-rw-r--r-- | jni_jpegstream/src/stream_wrapper.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/jni_jpegstream/src/stream_wrapper.h b/jni_jpegstream/src/stream_wrapper.h new file mode 100644 index 000000000..e036a9145 --- /dev/null +++ b/jni_jpegstream/src/stream_wrapper.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef STREAM_WRAPPER_H_ +#define STREAM_WRAPPER_H_ + +#include "jni_defines.h" + +#include <stdint.h> + +class StreamWrapper { +public: + StreamWrapper(); + virtual ~StreamWrapper(); + virtual void updateEnv(JNIEnv *env); + virtual bool init(JNIEnv *env, jobject stream); + virtual void cleanup(); + virtual int32_t getBufferSize(); + virtual jbyte* getBufferPtr(); + + const static int32_t DEFAULT_BUFFER_SIZE; + const static int32_t END_OF_STREAM; +protected: + JNIEnv *mEnv; + jobject mStream; + jbyteArray mByteArray; + jbyte* mBytes; + int32_t mByteArrayLen; +}; + +#endif // STREAM_WRAPPER_H_ |