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100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/**
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* Copyright (c) 2011, CESNET z.s.p.o
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* Copyright (c) 2011, Silicon Genome, LLC.
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GPUJPEG_READER_H
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#define GPUJPEG_READER_H
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#include "gpujpeg_common.h"
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/** JPEG decoder structure predeclaration */
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struct gpujpeg_decoder;
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/** JPEG reader scan structure */
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struct gpujpeg_reader_scan
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{
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// Global segment index
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int segment_index;
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// Segment count in scan
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int segment_count;
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};
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/** JPEG reader structure */
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struct gpujpeg_reader
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{
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// Parameters
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struct gpujpeg_parameters param;
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// Parameters for image data
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struct gpujpeg_image_parameters param_image;
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// Loaded component count
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int comp_count;
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// Loaded scans
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struct gpujpeg_reader_scan scan[GPUJPEG_MAX_COMPONENT_COUNT];
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// Loaded scans count
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int scan_count;
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// Total segment count
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int segment_count;
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// Total readed size
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int data_compressed_size;
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};
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/**
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* Create JPEG reader
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*
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* @return reader structure if succeeds, otherwise NULL
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*/
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struct gpujpeg_reader*
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gpujpeg_reader_create();
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/**
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* Destroy JPEG reader
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*
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* @param reader Reader structure
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* @return 0 if succeeds, otherwise nonzero
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*/
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int
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gpujpeg_reader_destroy(struct gpujpeg_reader* reader);
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/**
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* Read JPEG image from data buffer
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*
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* @param image Image data
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* @param image_size Image data size
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* @return 0 if succeeds, otherwise nonzero
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*/
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int
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gpujpeg_reader_read_image(struct gpujpeg_decoder* decoder, uint8_t* image, int image_size);
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#endif // GPUJPEG_READER_H
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