97 lines
1.8 KiB
C
97 lines
1.8 KiB
C
#ifndef MUPDF_FITZ_COMPRESSED_BUFFER_H
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#define MUPDF_FITZ_COMPRESSED_BUFFER_H
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#include "mupdf/fitz/system.h"
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#include "mupdf/fitz/context.h"
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#include "mupdf/fitz/buffer.h"
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#include "mupdf/fitz/stream.h"
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#include "mupdf/fitz/filter.h"
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typedef struct fz_compression_params_s fz_compression_params;
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typedef struct fz_compressed_buffer_s fz_compressed_buffer;
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size_t fz_compressed_buffer_size(fz_compressed_buffer *buffer);
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fz_stream *fz_open_compressed_buffer(fz_context *ctx, fz_compressed_buffer *);
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fz_stream *fz_open_image_decomp_stream_from_buffer(fz_context *ctx, fz_compressed_buffer *, int *l2factor);
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fz_stream *fz_open_image_decomp_stream(fz_context *ctx, fz_stream *, fz_compression_params *, int *l2factor);
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int fz_recognize_image_format(fz_context *ctx, unsigned char p[8]);
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enum
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{
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FZ_IMAGE_UNKNOWN = 0,
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/* Uncompressed samples */
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FZ_IMAGE_RAW,
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/* Compressed samples */
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FZ_IMAGE_FAX,
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FZ_IMAGE_FLATE,
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FZ_IMAGE_LZW,
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FZ_IMAGE_RLD,
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/* Full image formats */
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FZ_IMAGE_BMP,
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FZ_IMAGE_GIF,
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FZ_IMAGE_JBIG2,
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FZ_IMAGE_JPEG,
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FZ_IMAGE_JPX,
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FZ_IMAGE_JXR,
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FZ_IMAGE_PNG,
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FZ_IMAGE_PNM,
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FZ_IMAGE_TIFF,
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};
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struct fz_compression_params_s
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{
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int type;
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union {
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struct {
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int color_transform; /* Use -1 for unset */
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} jpeg;
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struct {
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int smask_in_data;
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} jpx;
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struct {
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fz_jbig2_globals *globals;
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} jbig2;
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struct {
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int columns;
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int rows;
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int k;
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int end_of_line;
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int encoded_byte_align;
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int end_of_block;
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int black_is_1;
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int damaged_rows_before_error;
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} fax;
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struct
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{
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int columns;
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int colors;
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int predictor;
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int bpc;
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}
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flate;
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struct
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{
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int columns;
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int colors;
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int predictor;
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int bpc;
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int early_change;
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} lzw;
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} u;
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};
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struct fz_compressed_buffer_s
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{
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fz_compression_params params;
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fz_buffer *buffer;
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};
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void fz_drop_compressed_buffer(fz_context *ctx, fz_compressed_buffer *buf);
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#endif
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