3ab68cf563
This, in combination with the existing jpeg_skip_scanlines() function, provides the ability to crop the image both horizontally and vertically while decompressing (certain restrictions apply-- see libjpeg.txt.) This also cleans up the documentation of the line skipping feature and removes the "strip decompression" feature from djpeg, since the new cropping feature is a superset of it. Refer to #34 for discussion. Closes #34
27 lines
721 B
C
27 lines
721 B
C
/*
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* wrppm.h
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*
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* This file was part of the Independent JPEG Group's software:
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* Copyright (C) 1994, Thomas G. Lane.
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* For conditions of distribution and use, see the accompanying README.ijg
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* file.
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*/
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#ifdef PPM_SUPPORTED
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/* Private version of data destination object */
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typedef struct {
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struct djpeg_dest_struct pub; /* public fields */
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/* Usually these two pointers point to the same place: */
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char *iobuffer; /* fwrite's I/O buffer */
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JSAMPROW pixrow; /* decompressor output buffer */
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size_t buffer_width; /* width of I/O buffer */
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JDIMENSION samples_per_row; /* JSAMPLEs per output row */
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} ppm_dest_struct;
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typedef ppm_dest_struct *ppm_dest_ptr;
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#endif
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