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Diffstat (limited to 'jni_jpegstream/src/jpeg_reader.h')
-rw-r--r-- | jni_jpegstream/src/jpeg_reader.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/jni_jpegstream/src/jpeg_reader.h b/jni_jpegstream/src/jpeg_reader.h deleted file mode 100644 index afde27b93..000000000 --- a/jni_jpegstream/src/jpeg_reader.h +++ /dev/null @@ -1,88 +0,0 @@ -/* - * 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 JPEG_READER_H_ -#define JPEG_READER_H_ - -#include "jerr_hook.h" -#include "jni_defines.h" -#include "jpeg_config.h" - -#include <stdint.h> - -/** - * JpegReader wraps libjpeg's decompression functionality and a - * java InputStream object. Read calls return data from the - * InputStream that has been decompressed. - */ -class JpegReader { -public: - JpegReader(); - ~JpegReader(); - - /** - * Call setup with a valid InputStream reference and pixel format. - * If this method is successful, the contents of width and height will - * be set to the dimensions of the bitmap to be read. - * - * ***This method will result in the jpeg file header being read - * from the InputStream*** - * - * Returns J_SUCCESS on success or a negative error code. - */ - int32_t setup(JNIEnv *env, jobject in, int32_t* width, int32_t* height, - Jpeg_Config::Format format); - - /** - * Decompresses bytes from the InputStream and writes at most count - * bytes into the buffer, bytes, starting at some offset. Passing a - * NULL as the bytes pointer effectively skips those bytes. - * - * ***This method will result in bytes being read from the InputStream*** - * - * Returns the number of bytes written into the input buffer or a - * negative error code. - */ - int32_t read(int8_t * bytes, int32_t offset, int32_t count); - - /** - * Updates the environment pointer. Call this before read or reset - * in any jni function call. - */ - void updateEnv(JNIEnv *env); - - /** - * Frees any java global references held by the JpegReader, destroys - * the decompress structure, and frees allocations in libjpeg's pools. - */ - int32_t reset(); - -private: - void formatPixels(uint8_t* buf, int32_t len); - struct jpeg_decompress_struct mInfo; - ErrManager mErrorManager; - - JSAMPLE* mScanlineBuf; - JSAMPLE* mScanlineIter; - int32_t mScanlineBuflen; - int32_t mScanlineUnformattedBuflen; - int32_t mScanlineBytesRemaining; - - Jpeg_Config::Format mFormat; - bool mFinished; - bool mSetup; -}; - -#endif // JPEG_READER_H_ |