openexr_compression.h File Reference

#include "openexr_context.h"
#include <stddef.h>

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Functions
EXR_EXPORT size_t	exr_compress_max_buffer_size (size_t in_bytes)
EXR_EXPORT exr_result_t	exr_compress_buffer (exr_const_context_t ctxt, int level, const void *in, size_t in_bytes, void *out, size_t out_bytes_avail, size_t *actual_out)
EXR_EXPORT exr_result_t	exr_uncompress_buffer (exr_const_context_t ctxt, const void *in, size_t in_bytes, void *out, size_t out_bytes_avail, size_t *actual_out)

Function Documentation

EXR_EXPORT exr_result_t exr_compress_buffer	(	exr_const_context_t	ctxt,
		int	level,
		const void *	in,
		size_t	in_bytes,
		void *	out,
		size_t	out_bytes_avail,
		size_t *	actual_out
	)

Compresses a buffer using a zlib style compression.

If the level is -1, will use the default compression set to the library exr_set_default_zip_compression_level data. This may include some extra padding for headers / scratch

EXR_EXPORT size_t exr_compress_max_buffer_size

(

size_t

in_bytes

)

Computes a buffer that will be large enough to hold the compressed data. This may include some extra padding for headers / scratch

EXR_EXPORT exr_result_t exr_uncompress_buffer	(	exr_const_context_t	ctxt,
		const void *	in,
		size_t	in_bytes,
		void *	out,
		size_t	out_bytes_avail,
		size_t *	actual_out
	)