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Allocate stream compression buffer.

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Michael R Sweet
2025-02-16 13:20:51 -05:00
parent 44827bac1a
commit 492a4f51b2
3 changed files with 46 additions and 20 deletions
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7
pdfio-private.h
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@@ -313,8 +313,9 @@ struct _pdfio_stream_s // Stream
z_stream flate; // Flate filter state
_pdfio_predictor_t predictor; // Predictor function, if any
size_t pbpixel, // Size of a pixel in bytes
pbsize; // Predictor buffer size, if any
unsigned char cbuffer[4096], // Compressed data buffer
pbsize, // Predictor buffer size, if any
cbsize; // Compressed data buffer size
unsigned char *cbuffer, // Compressed data buffer
*prbuffer, // Raw buffer (previous line), as needed
*psbuffer; // PNG filter buffer, as needed
_pdfio_crypto_cb_t crypto_cb; // Encryption/descryption callback, if any
@@ -384,7 +385,7 @@ extern void *_pdfioObjGetExtension(pdfio_obj_t *obj) _PDFIO_INTERNAL;
extern bool _pdfioObjLoad(pdfio_obj_t *obj) _PDFIO_INTERNAL;
extern void _pdfioObjSetExtension(pdfio_obj_t *obj, void *data, _pdfio_extfree_t datafree) _PDFIO_INTERNAL;
extern pdfio_stream_t *_pdfioStreamCreate(pdfio_obj_t *obj, pdfio_obj_t *length_obj, pdfio_filter_t compression) _PDFIO_INTERNAL;
extern pdfio_stream_t *_pdfioStreamCreate(pdfio_obj_t *obj, pdfio_obj_t *length_obj, size_t cbsize, pdfio_filter_t compression) _PDFIO_INTERNAL;
extern pdfio_stream_t *_pdfioStreamOpen(pdfio_obj_t *obj, bool decode) _PDFIO_INTERNAL;
extern bool _pdfioStringIsAllocated(pdfio_file_t *pdf, const char *s) _PDFIO_INTERNAL;