mirror of https://github.com/axmolengine/axmol.git
modify libpng version to 1.4.5
modify libjpeg txt mode to windows \r\n style
This commit is contained in:
parent
8ad2125139
commit
81243eecdf
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@ -1,47 +1,47 @@
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/*
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* jchuff.h
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*
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* Copyright (C) 1991-1997, Thomas G. Lane.
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* This file is part of the Independent JPEG Group's software.
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* For conditions of distribution and use, see the accompanying README file.
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*
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* This file contains declarations for Huffman entropy encoding routines
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* that are shared between the sequential encoder (jchuff.c) and the
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* progressive encoder (jcphuff.c). No other modules need to see these.
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*/
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/* The legal range of a DCT coefficient is
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* -1024 .. +1023 for 8-bit data;
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* -16384 .. +16383 for 12-bit data.
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* Hence the magnitude should always fit in 10 or 14 bits respectively.
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*/
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#if BITS_IN_JSAMPLE == 8
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#define MAX_COEF_BITS 10
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#else
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#define MAX_COEF_BITS 14
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#endif
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/* Derived data constructed for each Huffman table */
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typedef struct {
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unsigned int ehufco[256]; /* code for each symbol */
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char ehufsi[256]; /* length of code for each symbol */
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/* If no code has been allocated for a symbol S, ehufsi[S] contains 0 */
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} c_derived_tbl;
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/* Short forms of external names for systems with brain-damaged linkers. */
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#ifdef NEED_SHORT_EXTERNAL_NAMES
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#define jpeg_make_c_derived_tbl jMkCDerived
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#define jpeg_gen_optimal_table jGenOptTbl
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#endif /* NEED_SHORT_EXTERNAL_NAMES */
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/* Expand a Huffman table definition into the derived format */
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EXTERN(void) jpeg_make_c_derived_tbl
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JPP((j_compress_ptr cinfo, boolean isDC, int tblno,
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c_derived_tbl ** pdtbl));
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/* Generate an optimal table definition given the specified counts */
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EXTERN(void) jpeg_gen_optimal_table
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JPP((j_compress_ptr cinfo, JHUFF_TBL * htbl, long freq[]));
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/*
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* jchuff.h
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*
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* Copyright (C) 1991-1997, Thomas G. Lane.
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* This file is part of the Independent JPEG Group's software.
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* For conditions of distribution and use, see the accompanying README file.
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*
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* This file contains declarations for Huffman entropy encoding routines
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* that are shared between the sequential encoder (jchuff.c) and the
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* progressive encoder (jcphuff.c). No other modules need to see these.
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*/
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/* The legal range of a DCT coefficient is
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* -1024 .. +1023 for 8-bit data;
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* -16384 .. +16383 for 12-bit data.
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* Hence the magnitude should always fit in 10 or 14 bits respectively.
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*/
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#if BITS_IN_JSAMPLE == 8
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#define MAX_COEF_BITS 10
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#else
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#define MAX_COEF_BITS 14
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#endif
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/* Derived data constructed for each Huffman table */
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typedef struct {
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unsigned int ehufco[256]; /* code for each symbol */
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char ehufsi[256]; /* length of code for each symbol */
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/* If no code has been allocated for a symbol S, ehufsi[S] contains 0 */
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} c_derived_tbl;
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/* Short forms of external names for systems with brain-damaged linkers. */
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#ifdef NEED_SHORT_EXTERNAL_NAMES
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#define jpeg_make_c_derived_tbl jMkCDerived
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#define jpeg_gen_optimal_table jGenOptTbl
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#endif /* NEED_SHORT_EXTERNAL_NAMES */
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/* Expand a Huffman table definition into the derived format */
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EXTERN(void) jpeg_make_c_derived_tbl
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JPP((j_compress_ptr cinfo, boolean isDC, int tblno,
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c_derived_tbl ** pdtbl));
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/* Generate an optimal table definition given the specified counts */
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EXTERN(void) jpeg_gen_optimal_table
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JPP((j_compress_ptr cinfo, JHUFF_TBL * htbl, long freq[]));
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@ -1,176 +1,393 @@
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/*
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* jdct.h
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*
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* Copyright (C) 1994-1996, Thomas G. Lane.
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* This file is part of the Independent JPEG Group's software.
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* For conditions of distribution and use, see the accompanying README file.
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*
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* This include file contains common declarations for the forward and
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* inverse DCT modules. These declarations are private to the DCT managers
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* (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms.
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* The individual DCT algorithms are kept in separate files to ease
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* machine-dependent tuning (e.g., assembly coding).
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*/
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/*
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* A forward DCT routine is given a pointer to a work area of type DCTELEM[];
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* the DCT is to be performed in-place in that buffer. Type DCTELEM is int
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* for 8-bit samples, INT32 for 12-bit samples. (NOTE: Floating-point DCT
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* implementations use an array of type FAST_FLOAT, instead.)
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* The DCT inputs are expected to be signed (range +-CENTERJSAMPLE).
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* The DCT outputs are returned scaled up by a factor of 8; they therefore
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* have a range of +-8K for 8-bit data, +-128K for 12-bit data. This
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* convention improves accuracy in integer implementations and saves some
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* work in floating-point ones.
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* Quantization of the output coefficients is done by jcdctmgr.c.
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*/
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#if BITS_IN_JSAMPLE == 8
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typedef int DCTELEM; /* 16 or 32 bits is fine */
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#else
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typedef INT32 DCTELEM; /* must have 32 bits */
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#endif
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typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data));
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typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data));
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/*
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* An inverse DCT routine is given a pointer to the input JBLOCK and a pointer
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* to an output sample array. The routine must dequantize the input data as
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* well as perform the IDCT; for dequantization, it uses the multiplier table
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* pointed to by compptr->dct_table. The output data is to be placed into the
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* sample array starting at a specified column. (Any row offset needed will
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* be applied to the array pointer before it is passed to the IDCT code.)
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* Note that the number of samples emitted by the IDCT routine is
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* DCT_scaled_size * DCT_scaled_size.
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*/
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/* typedef inverse_DCT_method_ptr is declared in jpegint.h */
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/*
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* Each IDCT routine has its own ideas about the best dct_table element type.
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*/
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typedef MULTIPLIER ISLOW_MULT_TYPE; /* short or int, whichever is faster */
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#if BITS_IN_JSAMPLE == 8
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typedef MULTIPLIER IFAST_MULT_TYPE; /* 16 bits is OK, use short if faster */
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#define IFAST_SCALE_BITS 2 /* fractional bits in scale factors */
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#else
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typedef INT32 IFAST_MULT_TYPE; /* need 32 bits for scaled quantizers */
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#define IFAST_SCALE_BITS 13 /* fractional bits in scale factors */
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#endif
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typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */
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/*
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* Each IDCT routine is responsible for range-limiting its results and
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* converting them to unsigned form (0..MAXJSAMPLE). The raw outputs could
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* be quite far out of range if the input data is corrupt, so a bulletproof
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* range-limiting step is required. We use a mask-and-table-lookup method
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* to do the combined operations quickly. See the comments with
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* prepare_range_limit_table (in jdmaster.c) for more info.
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*/
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#define IDCT_range_limit(cinfo) ((cinfo)->sample_range_limit + CENTERJSAMPLE)
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#define RANGE_MASK (MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */
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/* Short forms of external names for systems with brain-damaged linkers. */
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#ifdef NEED_SHORT_EXTERNAL_NAMES
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#define jpeg_fdct_islow jFDislow
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#define jpeg_fdct_ifast jFDifast
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#define jpeg_fdct_float jFDfloat
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#define jpeg_idct_islow jRDislow
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#define jpeg_idct_ifast jRDifast
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#define jpeg_idct_float jRDfloat
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#define jpeg_idct_4x4 jRD4x4
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#define jpeg_idct_2x2 jRD2x2
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#define jpeg_idct_1x1 jRD1x1
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#endif /* NEED_SHORT_EXTERNAL_NAMES */
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/* Extern declarations for the forward and inverse DCT routines. */
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EXTERN(void) jpeg_fdct_islow JPP((DCTELEM * data));
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EXTERN(void) jpeg_fdct_ifast JPP((DCTELEM * data));
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EXTERN(void) jpeg_fdct_float JPP((FAST_FLOAT * data));
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EXTERN(void) jpeg_idct_islow
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JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
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EXTERN(void) jpeg_idct_ifast
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JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
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EXTERN(void) jpeg_idct_float
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JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
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EXTERN(void) jpeg_idct_4x4
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JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
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EXTERN(void) jpeg_idct_2x2
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JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
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EXTERN(void) jpeg_idct_1x1
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JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
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/*
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* Macros for handling fixed-point arithmetic; these are used by many
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* but not all of the DCT/IDCT modules.
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*
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* All values are expected to be of type INT32.
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* Fractional constants are scaled left by CONST_BITS bits.
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* CONST_BITS is defined within each module using these macros,
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* and may differ from one module to the next.
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*/
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#define ONE ((INT32) 1)
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#define CONST_SCALE (ONE << CONST_BITS)
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/* Convert a positive real constant to an integer scaled by CONST_SCALE.
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* Caution: some C compilers fail to reduce "FIX(constant)" at compile time,
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* thus causing a lot of useless floating-point operations at run time.
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*/
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#define FIX(x) ((INT32) ((x) * CONST_SCALE + 0.5))
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/* Descale and correctly round an INT32 value that's scaled by N bits.
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* We assume RIGHT_SHIFT rounds towards minus infinity, so adding
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* the fudge factor is correct for either sign of X.
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*/
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#define DESCALE(x,n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n)
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/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result.
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* This macro is used only when the two inputs will actually be no more than
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* 16 bits wide, so that a 16x16->32 bit multiply can be used instead of a
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* full 32x32 multiply. This provides a useful speedup on many machines.
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* Unfortunately there is no way to specify a 16x16->32 multiply portably
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* in C, but some C compilers will do the right thing if you provide the
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* correct combination of casts.
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*/
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#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */
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#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT16) (const)))
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#endif
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#ifdef SHORTxLCONST_32 /* known to work with Microsoft C 6.0 */
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#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT32) (const)))
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#endif
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#ifndef MULTIPLY16C16 /* default definition */
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#define MULTIPLY16C16(var,const) ((var) * (const))
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#endif
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/* Same except both inputs are variables. */
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#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */
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#define MULTIPLY16V16(var1,var2) (((INT16) (var1)) * ((INT16) (var2)))
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#endif
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#ifndef MULTIPLY16V16 /* default definition */
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#define MULTIPLY16V16(var1,var2) ((var1) * (var2))
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#endif
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/*
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* jdct.h
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*
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* Copyright (C) 1994-1996, Thomas G. Lane.
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* This file is part of the Independent JPEG Group's software.
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* For conditions of distribution and use, see the accompanying README file.
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*
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* This include file contains common declarations for the forward and
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* inverse DCT modules. These declarations are private to the DCT managers
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* (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms.
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* The individual DCT algorithms are kept in separate files to ease
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* machine-dependent tuning (e.g., assembly coding).
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*/
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/*
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* A forward DCT routine is given a pointer to an input sample array and
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* a pointer to a work area of type DCTELEM[]; the DCT is to be performed
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* in-place in that buffer. Type DCTELEM is int for 8-bit samples, INT32
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* for 12-bit samples. (NOTE: Floating-point DCT implementations use an
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* array of type FAST_FLOAT, instead.)
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* The input data is to be fetched from the sample array starting at a
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* specified column. (Any row offset needed will be applied to the array
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* pointer before it is passed to the FDCT code.)
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* Note that the number of samples fetched by the FDCT routine is
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* DCT_h_scaled_size * DCT_v_scaled_size.
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* The DCT outputs are returned scaled up by a factor of 8; they therefore
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* have a range of +-8K for 8-bit data, +-128K for 12-bit data. This
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* convention improves accuracy in integer implementations and saves some
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* work in floating-point ones.
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* Quantization of the output coefficients is done by jcdctmgr.c.
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*/
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#if BITS_IN_JSAMPLE == 8
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typedef int DCTELEM; /* 16 or 32 bits is fine */
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#else
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typedef INT32 DCTELEM; /* must have 32 bits */
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#endif
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typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data,
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JSAMPARRAY sample_data,
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JDIMENSION start_col));
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typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data,
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JSAMPARRAY sample_data,
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JDIMENSION start_col));
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/*
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* An inverse DCT routine is given a pointer to the input JBLOCK and a pointer
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* to an output sample array. The routine must dequantize the input data as
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* well as perform the IDCT; for dequantization, it uses the multiplier table
|
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* pointed to by compptr->dct_table. The output data is to be placed into the
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* sample array starting at a specified column. (Any row offset needed will
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* be applied to the array pointer before it is passed to the IDCT code.)
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* Note that the number of samples emitted by the IDCT routine is
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* DCT_h_scaled_size * DCT_v_scaled_size.
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*/
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/* typedef inverse_DCT_method_ptr is declared in jpegint.h */
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/*
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* Each IDCT routine has its own ideas about the best dct_table element type.
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*/
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typedef MULTIPLIER ISLOW_MULT_TYPE; /* short or int, whichever is faster */
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#if BITS_IN_JSAMPLE == 8
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typedef MULTIPLIER IFAST_MULT_TYPE; /* 16 bits is OK, use short if faster */
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#define IFAST_SCALE_BITS 2 /* fractional bits in scale factors */
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#else
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typedef INT32 IFAST_MULT_TYPE; /* need 32 bits for scaled quantizers */
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#define IFAST_SCALE_BITS 13 /* fractional bits in scale factors */
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#endif
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typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */
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/*
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* Each IDCT routine is responsible for range-limiting its results and
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* converting them to unsigned form (0..MAXJSAMPLE). The raw outputs could
|
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* be quite far out of range if the input data is corrupt, so a bulletproof
|
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* range-limiting step is required. We use a mask-and-table-lookup method
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* to do the combined operations quickly. See the comments with
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* prepare_range_limit_table (in jdmaster.c) for more info.
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*/
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#define IDCT_range_limit(cinfo) ((cinfo)->sample_range_limit + CENTERJSAMPLE)
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#define RANGE_MASK (MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */
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/* Short forms of external names for systems with brain-damaged linkers. */
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#ifdef NEED_SHORT_EXTERNAL_NAMES
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#define jpeg_fdct_islow jFDislow
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#define jpeg_fdct_ifast jFDifast
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#define jpeg_fdct_float jFDfloat
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#define jpeg_fdct_7x7 jFD7x7
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#define jpeg_fdct_6x6 jFD6x6
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#define jpeg_fdct_5x5 jFD5x5
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#define jpeg_fdct_4x4 jFD4x4
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#define jpeg_fdct_3x3 jFD3x3
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#define jpeg_fdct_2x2 jFD2x2
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#define jpeg_fdct_1x1 jFD1x1
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#define jpeg_fdct_9x9 jFD9x9
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#define jpeg_fdct_10x10 jFD10x10
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#define jpeg_fdct_11x11 jFD11x11
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#define jpeg_fdct_12x12 jFD12x12
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#define jpeg_fdct_13x13 jFD13x13
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#define jpeg_fdct_14x14 jFD14x14
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#define jpeg_fdct_15x15 jFD15x15
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#define jpeg_fdct_16x16 jFD16x16
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#define jpeg_fdct_16x8 jFD16x8
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#define jpeg_fdct_14x7 jFD14x7
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#define jpeg_fdct_12x6 jFD12x6
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#define jpeg_fdct_10x5 jFD10x5
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#define jpeg_fdct_8x4 jFD8x4
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#define jpeg_fdct_6x3 jFD6x3
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#define jpeg_fdct_4x2 jFD4x2
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#define jpeg_fdct_2x1 jFD2x1
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#define jpeg_fdct_8x16 jFD8x16
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#define jpeg_fdct_7x14 jFD7x14
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#define jpeg_fdct_6x12 jFD6x12
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#define jpeg_fdct_5x10 jFD5x10
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#define jpeg_fdct_4x8 jFD4x8
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#define jpeg_fdct_3x6 jFD3x6
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#define jpeg_fdct_2x4 jFD2x4
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#define jpeg_fdct_1x2 jFD1x2
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#define jpeg_idct_islow jRDislow
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#define jpeg_idct_ifast jRDifast
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#define jpeg_idct_float jRDfloat
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#define jpeg_idct_7x7 jRD7x7
|
||||
#define jpeg_idct_6x6 jRD6x6
|
||||
#define jpeg_idct_5x5 jRD5x5
|
||||
#define jpeg_idct_4x4 jRD4x4
|
||||
#define jpeg_idct_3x3 jRD3x3
|
||||
#define jpeg_idct_2x2 jRD2x2
|
||||
#define jpeg_idct_1x1 jRD1x1
|
||||
#define jpeg_idct_9x9 jRD9x9
|
||||
#define jpeg_idct_10x10 jRD10x10
|
||||
#define jpeg_idct_11x11 jRD11x11
|
||||
#define jpeg_idct_12x12 jRD12x12
|
||||
#define jpeg_idct_13x13 jRD13x13
|
||||
#define jpeg_idct_14x14 jRD14x14
|
||||
#define jpeg_idct_15x15 jRD15x15
|
||||
#define jpeg_idct_16x16 jRD16x16
|
||||
#define jpeg_idct_16x8 jRD16x8
|
||||
#define jpeg_idct_14x7 jRD14x7
|
||||
#define jpeg_idct_12x6 jRD12x6
|
||||
#define jpeg_idct_10x5 jRD10x5
|
||||
#define jpeg_idct_8x4 jRD8x4
|
||||
#define jpeg_idct_6x3 jRD6x3
|
||||
#define jpeg_idct_4x2 jRD4x2
|
||||
#define jpeg_idct_2x1 jRD2x1
|
||||
#define jpeg_idct_8x16 jRD8x16
|
||||
#define jpeg_idct_7x14 jRD7x14
|
||||
#define jpeg_idct_6x12 jRD6x12
|
||||
#define jpeg_idct_5x10 jRD5x10
|
||||
#define jpeg_idct_4x8 jRD4x8
|
||||
#define jpeg_idct_3x6 jRD3x8
|
||||
#define jpeg_idct_2x4 jRD2x4
|
||||
#define jpeg_idct_1x2 jRD1x2
|
||||
#endif /* NEED_SHORT_EXTERNAL_NAMES */
|
||||
|
||||
/* Extern declarations for the forward and inverse DCT routines. */
|
||||
|
||||
EXTERN(void) jpeg_fdct_islow
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_ifast
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_float
|
||||
JPP((FAST_FLOAT * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_7x7
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_6x6
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_5x5
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_4x4
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_3x3
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_2x2
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_1x1
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_9x9
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_10x10
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_11x11
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_12x12
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_13x13
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_14x14
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_15x15
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_16x16
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_16x8
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_14x7
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_12x6
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_10x5
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_8x4
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_6x3
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_4x2
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_2x1
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_8x16
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_7x14
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_6x12
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_5x10
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_4x8
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_3x6
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_2x4
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
EXTERN(void) jpeg_fdct_1x2
|
||||
JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col));
|
||||
|
||||
EXTERN(void) jpeg_idct_islow
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_ifast
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_float
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_7x7
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_6x6
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_5x5
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_4x4
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_3x3
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_2x2
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_1x1
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_9x9
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_10x10
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_11x11
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_12x12
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_13x13
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_14x14
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_15x15
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_16x16
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_16x8
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_14x7
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_12x6
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_10x5
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_8x4
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_6x3
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_4x2
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_2x1
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_8x16
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_7x14
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_6x12
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_5x10
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_4x8
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_3x6
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_2x4
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
EXTERN(void) jpeg_idct_1x2
|
||||
JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
|
||||
|
||||
/*
|
||||
* Macros for handling fixed-point arithmetic; these are used by many
|
||||
* but not all of the DCT/IDCT modules.
|
||||
*
|
||||
* All values are expected to be of type INT32.
|
||||
* Fractional constants are scaled left by CONST_BITS bits.
|
||||
* CONST_BITS is defined within each module using these macros,
|
||||
* and may differ from one module to the next.
|
||||
*/
|
||||
|
||||
#define ONE ((INT32) 1)
|
||||
#define CONST_SCALE (ONE << CONST_BITS)
|
||||
|
||||
/* Convert a positive real constant to an integer scaled by CONST_SCALE.
|
||||
* Caution: some C compilers fail to reduce "FIX(constant)" at compile time,
|
||||
* thus causing a lot of useless floating-point operations at run time.
|
||||
*/
|
||||
|
||||
#define FIX(x) ((INT32) ((x) * CONST_SCALE + 0.5))
|
||||
|
||||
/* Descale and correctly round an INT32 value that's scaled by N bits.
|
||||
* We assume RIGHT_SHIFT rounds towards minus infinity, so adding
|
||||
* the fudge factor is correct for either sign of X.
|
||||
*/
|
||||
|
||||
#define DESCALE(x,n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n)
|
||||
|
||||
/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result.
|
||||
* This macro is used only when the two inputs will actually be no more than
|
||||
* 16 bits wide, so that a 16x16->32 bit multiply can be used instead of a
|
||||
* full 32x32 multiply. This provides a useful speedup on many machines.
|
||||
* Unfortunately there is no way to specify a 16x16->32 multiply portably
|
||||
* in C, but some C compilers will do the right thing if you provide the
|
||||
* correct combination of casts.
|
||||
*/
|
||||
|
||||
#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */
|
||||
#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT16) (const)))
|
||||
#endif
|
||||
#ifdef SHORTxLCONST_32 /* known to work with Microsoft C 6.0 */
|
||||
#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT32) (const)))
|
||||
#endif
|
||||
|
||||
#ifndef MULTIPLY16C16 /* default definition */
|
||||
#define MULTIPLY16C16(var,const) ((var) * (const))
|
||||
#endif
|
||||
|
||||
/* Same except both inputs are variables. */
|
||||
|
||||
#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */
|
||||
#define MULTIPLY16V16(var1,var2) (((INT16) (var1)) * ((INT16) (var2)))
|
||||
#endif
|
||||
|
||||
#ifndef MULTIPLY16V16 /* default definition */
|
||||
#define MULTIPLY16V16(var1,var2) ((var1) * (var2))
|
||||
#endif
|
||||
|
|
|
@ -1,201 +1,201 @@
|
|||
/*
|
||||
* jdhuff.h
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file contains declarations for Huffman entropy decoding routines
|
||||
* that are shared between the sequential decoder (jdhuff.c) and the
|
||||
* progressive decoder (jdphuff.c). No other modules need to see these.
|
||||
*/
|
||||
|
||||
/* Short forms of external names for systems with brain-damaged linkers. */
|
||||
|
||||
#ifdef NEED_SHORT_EXTERNAL_NAMES
|
||||
#define jpeg_make_d_derived_tbl jMkDDerived
|
||||
#define jpeg_fill_bit_buffer jFilBitBuf
|
||||
#define jpeg_huff_decode jHufDecode
|
||||
#endif /* NEED_SHORT_EXTERNAL_NAMES */
|
||||
|
||||
|
||||
/* Derived data constructed for each Huffman table */
|
||||
|
||||
#define HUFF_LOOKAHEAD 8 /* # of bits of lookahead */
|
||||
|
||||
typedef struct {
|
||||
/* Basic tables: (element [0] of each array is unused) */
|
||||
INT32 maxcode[18]; /* largest code of length k (-1 if none) */
|
||||
/* (maxcode[17] is a sentinel to ensure jpeg_huff_decode terminates) */
|
||||
INT32 valoffset[17]; /* huffval[] offset for codes of length k */
|
||||
/* valoffset[k] = huffval[] index of 1st symbol of code length k, less
|
||||
* the smallest code of length k; so given a code of length k, the
|
||||
* corresponding symbol is huffval[code + valoffset[k]]
|
||||
*/
|
||||
|
||||
/* Link to public Huffman table (needed only in jpeg_huff_decode) */
|
||||
JHUFF_TBL *pub;
|
||||
|
||||
/* Lookahead tables: indexed by the next HUFF_LOOKAHEAD bits of
|
||||
* the input data stream. If the next Huffman code is no more
|
||||
* than HUFF_LOOKAHEAD bits long, we can obtain its length and
|
||||
* the corresponding symbol directly from these tables.
|
||||
*/
|
||||
int look_nbits[1<<HUFF_LOOKAHEAD]; /* # bits, or 0 if too long */
|
||||
UINT8 look_sym[1<<HUFF_LOOKAHEAD]; /* symbol, or unused */
|
||||
} d_derived_tbl;
|
||||
|
||||
/* Expand a Huffman table definition into the derived format */
|
||||
EXTERN(void) jpeg_make_d_derived_tbl
|
||||
JPP((j_decompress_ptr cinfo, boolean isDC, int tblno,
|
||||
d_derived_tbl ** pdtbl));
|
||||
|
||||
|
||||
/*
|
||||
* Fetching the next N bits from the input stream is a time-critical operation
|
||||
* for the Huffman decoders. We implement it with a combination of inline
|
||||
* macros and out-of-line subroutines. Note that N (the number of bits
|
||||
* demanded at one time) never exceeds 15 for JPEG use.
|
||||
*
|
||||
* We read source bytes into get_buffer and dole out bits as needed.
|
||||
* If get_buffer already contains enough bits, they are fetched in-line
|
||||
* by the macros CHECK_BIT_BUFFER and GET_BITS. When there aren't enough
|
||||
* bits, jpeg_fill_bit_buffer is called; it will attempt to fill get_buffer
|
||||
* as full as possible (not just to the number of bits needed; this
|
||||
* prefetching reduces the overhead cost of calling jpeg_fill_bit_buffer).
|
||||
* Note that jpeg_fill_bit_buffer may return FALSE to indicate suspension.
|
||||
* On TRUE return, jpeg_fill_bit_buffer guarantees that get_buffer contains
|
||||
* at least the requested number of bits --- dummy zeroes are inserted if
|
||||
* necessary.
|
||||
*/
|
||||
|
||||
typedef INT32 bit_buf_type; /* type of bit-extraction buffer */
|
||||
#define BIT_BUF_SIZE 32 /* size of buffer in bits */
|
||||
|
||||
/* If long is > 32 bits on your machine, and shifting/masking longs is
|
||||
* reasonably fast, making bit_buf_type be long and setting BIT_BUF_SIZE
|
||||
* appropriately should be a win. Unfortunately we can't define the size
|
||||
* with something like #define BIT_BUF_SIZE (sizeof(bit_buf_type)*8)
|
||||
* because not all machines measure sizeof in 8-bit bytes.
|
||||
*/
|
||||
|
||||
typedef struct { /* Bitreading state saved across MCUs */
|
||||
bit_buf_type get_buffer; /* current bit-extraction buffer */
|
||||
int bits_left; /* # of unused bits in it */
|
||||
} bitread_perm_state;
|
||||
|
||||
typedef struct { /* Bitreading working state within an MCU */
|
||||
/* Current data source location */
|
||||
/* We need a copy, rather than munging the original, in case of suspension */
|
||||
const JOCTET * next_input_byte; /* => next byte to read from source */
|
||||
size_t bytes_in_buffer; /* # of bytes remaining in source buffer */
|
||||
/* Bit input buffer --- note these values are kept in register variables,
|
||||
* not in this struct, inside the inner loops.
|
||||
*/
|
||||
bit_buf_type get_buffer; /* current bit-extraction buffer */
|
||||
int bits_left; /* # of unused bits in it */
|
||||
/* Pointer needed by jpeg_fill_bit_buffer. */
|
||||
j_decompress_ptr cinfo; /* back link to decompress master record */
|
||||
} bitread_working_state;
|
||||
|
||||
/* Macros to declare and load/save bitread local variables. */
|
||||
#define BITREAD_STATE_VARS \
|
||||
register bit_buf_type get_buffer; \
|
||||
register int bits_left; \
|
||||
bitread_working_state br_state
|
||||
|
||||
#define BITREAD_LOAD_STATE(cinfop,permstate) \
|
||||
br_state.cinfo = cinfop; \
|
||||
br_state.next_input_byte = cinfop->src->next_input_byte; \
|
||||
br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \
|
||||
get_buffer = permstate.get_buffer; \
|
||||
bits_left = permstate.bits_left;
|
||||
|
||||
#define BITREAD_SAVE_STATE(cinfop,permstate) \
|
||||
cinfop->src->next_input_byte = br_state.next_input_byte; \
|
||||
cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \
|
||||
permstate.get_buffer = get_buffer; \
|
||||
permstate.bits_left = bits_left
|
||||
|
||||
/*
|
||||
* These macros provide the in-line portion of bit fetching.
|
||||
* Use CHECK_BIT_BUFFER to ensure there are N bits in get_buffer
|
||||
* before using GET_BITS, PEEK_BITS, or DROP_BITS.
|
||||
* The variables get_buffer and bits_left are assumed to be locals,
|
||||
* but the state struct might not be (jpeg_huff_decode needs this).
|
||||
* CHECK_BIT_BUFFER(state,n,action);
|
||||
* Ensure there are N bits in get_buffer; if suspend, take action.
|
||||
* val = GET_BITS(n);
|
||||
* Fetch next N bits.
|
||||
* val = PEEK_BITS(n);
|
||||
* Fetch next N bits without removing them from the buffer.
|
||||
* DROP_BITS(n);
|
||||
* Discard next N bits.
|
||||
* The value N should be a simple variable, not an expression, because it
|
||||
* is evaluated multiple times.
|
||||
*/
|
||||
|
||||
#define CHECK_BIT_BUFFER(state,nbits,action) \
|
||||
{ if (bits_left < (nbits)) { \
|
||||
if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits)) \
|
||||
{ action; } \
|
||||
get_buffer = (state).get_buffer; bits_left = (state).bits_left; } }
|
||||
|
||||
#define GET_BITS(nbits) \
|
||||
(((int) (get_buffer >> (bits_left -= (nbits)))) & ((1<<(nbits))-1))
|
||||
|
||||
#define PEEK_BITS(nbits) \
|
||||
(((int) (get_buffer >> (bits_left - (nbits)))) & ((1<<(nbits))-1))
|
||||
|
||||
#define DROP_BITS(nbits) \
|
||||
(bits_left -= (nbits))
|
||||
|
||||
/* Load up the bit buffer to a depth of at least nbits */
|
||||
EXTERN(boolean) jpeg_fill_bit_buffer
|
||||
JPP((bitread_working_state * state, register bit_buf_type get_buffer,
|
||||
register int bits_left, int nbits));
|
||||
|
||||
|
||||
/*
|
||||
* Code for extracting next Huffman-coded symbol from input bit stream.
|
||||
* Again, this is time-critical and we make the main paths be macros.
|
||||
*
|
||||
* We use a lookahead table to process codes of up to HUFF_LOOKAHEAD bits
|
||||
* without looping. Usually, more than 95% of the Huffman codes will be 8
|
||||
* or fewer bits long. The few overlength codes are handled with a loop,
|
||||
* which need not be inline code.
|
||||
*
|
||||
* Notes about the HUFF_DECODE macro:
|
||||
* 1. Near the end of the data segment, we may fail to get enough bits
|
||||
* for a lookahead. In that case, we do it the hard way.
|
||||
* 2. If the lookahead table contains no entry, the next code must be
|
||||
* more than HUFF_LOOKAHEAD bits long.
|
||||
* 3. jpeg_huff_decode returns -1 if forced to suspend.
|
||||
*/
|
||||
|
||||
#define HUFF_DECODE(result,state,htbl,failaction,slowlabel) \
|
||||
{ register int nb, look; \
|
||||
if (bits_left < HUFF_LOOKAHEAD) { \
|
||||
if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \
|
||||
get_buffer = state.get_buffer; bits_left = state.bits_left; \
|
||||
if (bits_left < HUFF_LOOKAHEAD) { \
|
||||
nb = 1; goto slowlabel; \
|
||||
} \
|
||||
} \
|
||||
look = PEEK_BITS(HUFF_LOOKAHEAD); \
|
||||
if ((nb = htbl->look_nbits[look]) != 0) { \
|
||||
DROP_BITS(nb); \
|
||||
result = htbl->look_sym[look]; \
|
||||
} else { \
|
||||
nb = HUFF_LOOKAHEAD+1; \
|
||||
slowlabel: \
|
||||
if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \
|
||||
{ failaction; } \
|
||||
get_buffer = state.get_buffer; bits_left = state.bits_left; \
|
||||
} \
|
||||
}
|
||||
|
||||
/* Out-of-line case for Huffman code fetching */
|
||||
EXTERN(int) jpeg_huff_decode
|
||||
JPP((bitread_working_state * state, register bit_buf_type get_buffer,
|
||||
register int bits_left, d_derived_tbl * htbl, int min_bits));
|
||||
/*
|
||||
* jdhuff.h
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file contains declarations for Huffman entropy decoding routines
|
||||
* that are shared between the sequential decoder (jdhuff.c) and the
|
||||
* progressive decoder (jdphuff.c). No other modules need to see these.
|
||||
*/
|
||||
|
||||
/* Short forms of external names for systems with brain-damaged linkers. */
|
||||
|
||||
#ifdef NEED_SHORT_EXTERNAL_NAMES
|
||||
#define jpeg_make_d_derived_tbl jMkDDerived
|
||||
#define jpeg_fill_bit_buffer jFilBitBuf
|
||||
#define jpeg_huff_decode jHufDecode
|
||||
#endif /* NEED_SHORT_EXTERNAL_NAMES */
|
||||
|
||||
|
||||
/* Derived data constructed for each Huffman table */
|
||||
|
||||
#define HUFF_LOOKAHEAD 8 /* # of bits of lookahead */
|
||||
|
||||
typedef struct {
|
||||
/* Basic tables: (element [0] of each array is unused) */
|
||||
INT32 maxcode[18]; /* largest code of length k (-1 if none) */
|
||||
/* (maxcode[17] is a sentinel to ensure jpeg_huff_decode terminates) */
|
||||
INT32 valoffset[17]; /* huffval[] offset for codes of length k */
|
||||
/* valoffset[k] = huffval[] index of 1st symbol of code length k, less
|
||||
* the smallest code of length k; so given a code of length k, the
|
||||
* corresponding symbol is huffval[code + valoffset[k]]
|
||||
*/
|
||||
|
||||
/* Link to public Huffman table (needed only in jpeg_huff_decode) */
|
||||
JHUFF_TBL *pub;
|
||||
|
||||
/* Lookahead tables: indexed by the next HUFF_LOOKAHEAD bits of
|
||||
* the input data stream. If the next Huffman code is no more
|
||||
* than HUFF_LOOKAHEAD bits long, we can obtain its length and
|
||||
* the corresponding symbol directly from these tables.
|
||||
*/
|
||||
int look_nbits[1<<HUFF_LOOKAHEAD]; /* # bits, or 0 if too long */
|
||||
UINT8 look_sym[1<<HUFF_LOOKAHEAD]; /* symbol, or unused */
|
||||
} d_derived_tbl;
|
||||
|
||||
/* Expand a Huffman table definition into the derived format */
|
||||
EXTERN(void) jpeg_make_d_derived_tbl
|
||||
JPP((j_decompress_ptr cinfo, boolean isDC, int tblno,
|
||||
d_derived_tbl ** pdtbl));
|
||||
|
||||
|
||||
/*
|
||||
* Fetching the next N bits from the input stream is a time-critical operation
|
||||
* for the Huffman decoders. We implement it with a combination of inline
|
||||
* macros and out-of-line subroutines. Note that N (the number of bits
|
||||
* demanded at one time) never exceeds 15 for JPEG use.
|
||||
*
|
||||
* We read source bytes into get_buffer and dole out bits as needed.
|
||||
* If get_buffer already contains enough bits, they are fetched in-line
|
||||
* by the macros CHECK_BIT_BUFFER and GET_BITS. When there aren't enough
|
||||
* bits, jpeg_fill_bit_buffer is called; it will attempt to fill get_buffer
|
||||
* as full as possible (not just to the number of bits needed; this
|
||||
* prefetching reduces the overhead cost of calling jpeg_fill_bit_buffer).
|
||||
* Note that jpeg_fill_bit_buffer may return FALSE to indicate suspension.
|
||||
* On TRUE return, jpeg_fill_bit_buffer guarantees that get_buffer contains
|
||||
* at least the requested number of bits --- dummy zeroes are inserted if
|
||||
* necessary.
|
||||
*/
|
||||
|
||||
typedef INT32 bit_buf_type; /* type of bit-extraction buffer */
|
||||
#define BIT_BUF_SIZE 32 /* size of buffer in bits */
|
||||
|
||||
/* If long is > 32 bits on your machine, and shifting/masking longs is
|
||||
* reasonably fast, making bit_buf_type be long and setting BIT_BUF_SIZE
|
||||
* appropriately should be a win. Unfortunately we can't define the size
|
||||
* with something like #define BIT_BUF_SIZE (sizeof(bit_buf_type)*8)
|
||||
* because not all machines measure sizeof in 8-bit bytes.
|
||||
*/
|
||||
|
||||
typedef struct { /* Bitreading state saved across MCUs */
|
||||
bit_buf_type get_buffer; /* current bit-extraction buffer */
|
||||
int bits_left; /* # of unused bits in it */
|
||||
} bitread_perm_state;
|
||||
|
||||
typedef struct { /* Bitreading working state within an MCU */
|
||||
/* Current data source location */
|
||||
/* We need a copy, rather than munging the original, in case of suspension */
|
||||
const JOCTET * next_input_byte; /* => next byte to read from source */
|
||||
size_t bytes_in_buffer; /* # of bytes remaining in source buffer */
|
||||
/* Bit input buffer --- note these values are kept in register variables,
|
||||
* not in this struct, inside the inner loops.
|
||||
*/
|
||||
bit_buf_type get_buffer; /* current bit-extraction buffer */
|
||||
int bits_left; /* # of unused bits in it */
|
||||
/* Pointer needed by jpeg_fill_bit_buffer. */
|
||||
j_decompress_ptr cinfo; /* back link to decompress master record */
|
||||
} bitread_working_state;
|
||||
|
||||
/* Macros to declare and load/save bitread local variables. */
|
||||
#define BITREAD_STATE_VARS \
|
||||
register bit_buf_type get_buffer; \
|
||||
register int bits_left; \
|
||||
bitread_working_state br_state
|
||||
|
||||
#define BITREAD_LOAD_STATE(cinfop,permstate) \
|
||||
br_state.cinfo = cinfop; \
|
||||
br_state.next_input_byte = cinfop->src->next_input_byte; \
|
||||
br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \
|
||||
get_buffer = permstate.get_buffer; \
|
||||
bits_left = permstate.bits_left;
|
||||
|
||||
#define BITREAD_SAVE_STATE(cinfop,permstate) \
|
||||
cinfop->src->next_input_byte = br_state.next_input_byte; \
|
||||
cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \
|
||||
permstate.get_buffer = get_buffer; \
|
||||
permstate.bits_left = bits_left
|
||||
|
||||
/*
|
||||
* These macros provide the in-line portion of bit fetching.
|
||||
* Use CHECK_BIT_BUFFER to ensure there are N bits in get_buffer
|
||||
* before using GET_BITS, PEEK_BITS, or DROP_BITS.
|
||||
* The variables get_buffer and bits_left are assumed to be locals,
|
||||
* but the state struct might not be (jpeg_huff_decode needs this).
|
||||
* CHECK_BIT_BUFFER(state,n,action);
|
||||
* Ensure there are N bits in get_buffer; if suspend, take action.
|
||||
* val = GET_BITS(n);
|
||||
* Fetch next N bits.
|
||||
* val = PEEK_BITS(n);
|
||||
* Fetch next N bits without removing them from the buffer.
|
||||
* DROP_BITS(n);
|
||||
* Discard next N bits.
|
||||
* The value N should be a simple variable, not an expression, because it
|
||||
* is evaluated multiple times.
|
||||
*/
|
||||
|
||||
#define CHECK_BIT_BUFFER(state,nbits,action) \
|
||||
{ if (bits_left < (nbits)) { \
|
||||
if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits)) \
|
||||
{ action; } \
|
||||
get_buffer = (state).get_buffer; bits_left = (state).bits_left; } }
|
||||
|
||||
#define GET_BITS(nbits) \
|
||||
(((int) (get_buffer >> (bits_left -= (nbits)))) & ((1<<(nbits))-1))
|
||||
|
||||
#define PEEK_BITS(nbits) \
|
||||
(((int) (get_buffer >> (bits_left - (nbits)))) & ((1<<(nbits))-1))
|
||||
|
||||
#define DROP_BITS(nbits) \
|
||||
(bits_left -= (nbits))
|
||||
|
||||
/* Load up the bit buffer to a depth of at least nbits */
|
||||
EXTERN(boolean) jpeg_fill_bit_buffer
|
||||
JPP((bitread_working_state * state, register bit_buf_type get_buffer,
|
||||
register int bits_left, int nbits));
|
||||
|
||||
|
||||
/*
|
||||
* Code for extracting next Huffman-coded symbol from input bit stream.
|
||||
* Again, this is time-critical and we make the main paths be macros.
|
||||
*
|
||||
* We use a lookahead table to process codes of up to HUFF_LOOKAHEAD bits
|
||||
* without looping. Usually, more than 95% of the Huffman codes will be 8
|
||||
* or fewer bits long. The few overlength codes are handled with a loop,
|
||||
* which need not be inline code.
|
||||
*
|
||||
* Notes about the HUFF_DECODE macro:
|
||||
* 1. Near the end of the data segment, we may fail to get enough bits
|
||||
* for a lookahead. In that case, we do it the hard way.
|
||||
* 2. If the lookahead table contains no entry, the next code must be
|
||||
* more than HUFF_LOOKAHEAD bits long.
|
||||
* 3. jpeg_huff_decode returns -1 if forced to suspend.
|
||||
*/
|
||||
|
||||
#define HUFF_DECODE(result,state,htbl,failaction,slowlabel) \
|
||||
{ register int nb, look; \
|
||||
if (bits_left < HUFF_LOOKAHEAD) { \
|
||||
if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \
|
||||
get_buffer = state.get_buffer; bits_left = state.bits_left; \
|
||||
if (bits_left < HUFF_LOOKAHEAD) { \
|
||||
nb = 1; goto slowlabel; \
|
||||
} \
|
||||
} \
|
||||
look = PEEK_BITS(HUFF_LOOKAHEAD); \
|
||||
if ((nb = htbl->look_nbits[look]) != 0) { \
|
||||
DROP_BITS(nb); \
|
||||
result = htbl->look_sym[look]; \
|
||||
} else { \
|
||||
nb = HUFF_LOOKAHEAD+1; \
|
||||
slowlabel: \
|
||||
if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \
|
||||
{ failaction; } \
|
||||
get_buffer = state.get_buffer; bits_left = state.bits_left; \
|
||||
} \
|
||||
}
|
||||
|
||||
/* Out-of-line case for Huffman code fetching */
|
||||
EXTERN(int) jpeg_huff_decode
|
||||
JPP((bitread_working_state * state, register bit_buf_type get_buffer,
|
||||
register int bits_left, d_derived_tbl * htbl, int min_bits));
|
||||
|
|
|
@ -1,291 +1,304 @@
|
|||
/*
|
||||
* jerror.h
|
||||
*
|
||||
* Copyright (C) 1994-1997, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file defines the error and message codes for the JPEG library.
|
||||
* Edit this file to add new codes, or to translate the message strings to
|
||||
* some other language.
|
||||
* A set of error-reporting macros are defined too. Some applications using
|
||||
* the JPEG library may wish to include this file to get the error codes
|
||||
* and/or the macros.
|
||||
*/
|
||||
|
||||
/*
|
||||
* To define the enum list of message codes, include this file without
|
||||
* defining macro JMESSAGE. To create a message string table, include it
|
||||
* again with a suitable JMESSAGE definition (see jerror.c for an example).
|
||||
*/
|
||||
#ifndef JMESSAGE
|
||||
#ifndef JERROR_H
|
||||
/* First time through, define the enum list */
|
||||
#define JMAKE_ENUM_LIST
|
||||
#else
|
||||
/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */
|
||||
#define JMESSAGE(code,string)
|
||||
#endif /* JERROR_H */
|
||||
#endif /* JMESSAGE */
|
||||
|
||||
#ifdef JMAKE_ENUM_LIST
|
||||
|
||||
typedef enum {
|
||||
|
||||
#define JMESSAGE(code,string) code ,
|
||||
|
||||
#endif /* JMAKE_ENUM_LIST */
|
||||
|
||||
JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */
|
||||
|
||||
/* For maintenance convenience, list is alphabetical by message code name */
|
||||
JMESSAGE(JERR_ARITH_NOTIMPL,
|
||||
"Sorry, there are legal restrictions on arithmetic coding")
|
||||
JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix")
|
||||
JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix")
|
||||
JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode")
|
||||
JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS")
|
||||
JMESSAGE(JERR_BAD_DCT_COEF, "DCT coefficient out of range")
|
||||
JMESSAGE(JERR_BAD_DCTSIZE, "IDCT output block size %d not supported")
|
||||
JMESSAGE(JERR_BAD_HUFF_TABLE, "Bogus Huffman table definition")
|
||||
JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace")
|
||||
JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace")
|
||||
JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length")
|
||||
JMESSAGE(JERR_BAD_LIB_VERSION,
|
||||
"Wrong JPEG library version: library is %d, caller expects %d")
|
||||
JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan")
|
||||
JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d")
|
||||
JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d")
|
||||
JMESSAGE(JERR_BAD_PROGRESSION,
|
||||
"Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d")
|
||||
JMESSAGE(JERR_BAD_PROG_SCRIPT,
|
||||
"Invalid progressive parameters at scan script entry %d")
|
||||
JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors")
|
||||
JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d")
|
||||
JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d")
|
||||
JMESSAGE(JERR_BAD_STRUCT_SIZE,
|
||||
"JPEG parameter struct mismatch: library thinks size is %u, caller expects %u")
|
||||
JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access")
|
||||
JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small")
|
||||
JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here")
|
||||
JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet")
|
||||
JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d")
|
||||
JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request")
|
||||
JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d")
|
||||
JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x")
|
||||
JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d")
|
||||
JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d")
|
||||
JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)")
|
||||
JMESSAGE(JERR_EMS_READ, "Read from EMS failed")
|
||||
JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed")
|
||||
JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan")
|
||||
JMESSAGE(JERR_FILE_READ, "Input file read error")
|
||||
JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?")
|
||||
JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet")
|
||||
JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow")
|
||||
JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry")
|
||||
JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels")
|
||||
JMESSAGE(JERR_INPUT_EMPTY, "Empty input file")
|
||||
JMESSAGE(JERR_INPUT_EOF, "Premature end of input file")
|
||||
JMESSAGE(JERR_MISMATCHED_QUANT_TABLE,
|
||||
"Cannot transcode due to multiple use of quantization table %d")
|
||||
JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data")
|
||||
JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change")
|
||||
JMESSAGE(JERR_NOTIMPL, "Not implemented yet")
|
||||
JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time")
|
||||
JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported")
|
||||
JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined")
|
||||
JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image")
|
||||
JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined")
|
||||
JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x")
|
||||
JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)")
|
||||
JMESSAGE(JERR_QUANT_COMPONENTS,
|
||||
"Cannot quantize more than %d color components")
|
||||
JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors")
|
||||
JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors")
|
||||
JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers")
|
||||
JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker")
|
||||
JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x")
|
||||
JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers")
|
||||
JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF")
|
||||
JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s")
|
||||
JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file")
|
||||
JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file")
|
||||
JMESSAGE(JERR_TFILE_WRITE,
|
||||
"Write failed on temporary file --- out of disk space?")
|
||||
JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines")
|
||||
JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x")
|
||||
JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up")
|
||||
JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation")
|
||||
JMESSAGE(JERR_XMS_READ, "Read from XMS failed")
|
||||
JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed")
|
||||
JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT)
|
||||
JMESSAGE(JMSG_VERSION, JVERSION)
|
||||
JMESSAGE(JTRC_16BIT_TABLES,
|
||||
"Caution: quantization tables are too coarse for baseline JPEG")
|
||||
JMESSAGE(JTRC_ADOBE,
|
||||
"Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d")
|
||||
JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u")
|
||||
JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u")
|
||||
JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x")
|
||||
JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x")
|
||||
JMESSAGE(JTRC_DQT, "Define Quantization Table %d precision %d")
|
||||
JMESSAGE(JTRC_DRI, "Define Restart Interval %u")
|
||||
JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u")
|
||||
JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u")
|
||||
JMESSAGE(JTRC_EOI, "End Of Image")
|
||||
JMESSAGE(JTRC_HUFFBITS, " %3d %3d %3d %3d %3d %3d %3d %3d")
|
||||
JMESSAGE(JTRC_JFIF, "JFIF APP0 marker: version %d.%02d, density %dx%d %d")
|
||||
JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE,
|
||||
"Warning: thumbnail image size does not match data length %u")
|
||||
JMESSAGE(JTRC_JFIF_EXTENSION,
|
||||
"JFIF extension marker: type 0x%02x, length %u")
|
||||
JMESSAGE(JTRC_JFIF_THUMBNAIL, " with %d x %d thumbnail image")
|
||||
JMESSAGE(JTRC_MISC_MARKER, "Miscellaneous marker 0x%02x, length %u")
|
||||
JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x")
|
||||
JMESSAGE(JTRC_QUANTVALS, " %4u %4u %4u %4u %4u %4u %4u %4u")
|
||||
JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors")
|
||||
JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors")
|
||||
JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization")
|
||||
JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d")
|
||||
JMESSAGE(JTRC_RST, "RST%d")
|
||||
JMESSAGE(JTRC_SMOOTH_NOTIMPL,
|
||||
"Smoothing not supported with nonstandard sampling ratios")
|
||||
JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d")
|
||||
JMESSAGE(JTRC_SOF_COMPONENT, " Component %d: %dhx%dv q=%d")
|
||||
JMESSAGE(JTRC_SOI, "Start of Image")
|
||||
JMESSAGE(JTRC_SOS, "Start Of Scan: %d components")
|
||||
JMESSAGE(JTRC_SOS_COMPONENT, " Component %d: dc=%d ac=%d")
|
||||
JMESSAGE(JTRC_SOS_PARAMS, " Ss=%d, Se=%d, Ah=%d, Al=%d")
|
||||
JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s")
|
||||
JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s")
|
||||
JMESSAGE(JTRC_THUMB_JPEG,
|
||||
"JFIF extension marker: JPEG-compressed thumbnail image, length %u")
|
||||
JMESSAGE(JTRC_THUMB_PALETTE,
|
||||
"JFIF extension marker: palette thumbnail image, length %u")
|
||||
JMESSAGE(JTRC_THUMB_RGB,
|
||||
"JFIF extension marker: RGB thumbnail image, length %u")
|
||||
JMESSAGE(JTRC_UNKNOWN_IDS,
|
||||
"Unrecognized component IDs %d %d %d, assuming YCbCr")
|
||||
JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u")
|
||||
JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u")
|
||||
JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d")
|
||||
JMESSAGE(JWRN_BOGUS_PROGRESSION,
|
||||
"Inconsistent progression sequence for component %d coefficient %d")
|
||||
JMESSAGE(JWRN_EXTRANEOUS_DATA,
|
||||
"Corrupt JPEG data: %u extraneous bytes before marker 0x%02x")
|
||||
JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment")
|
||||
JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code")
|
||||
JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d")
|
||||
JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file")
|
||||
JMESSAGE(JWRN_MUST_RESYNC,
|
||||
"Corrupt JPEG data: found marker 0x%02x instead of RST%d")
|
||||
JMESSAGE(JWRN_NOT_SEQUENTIAL, "Invalid SOS parameters for sequential JPEG")
|
||||
JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines")
|
||||
|
||||
#ifdef JMAKE_ENUM_LIST
|
||||
|
||||
JMSG_LASTMSGCODE
|
||||
} J_MESSAGE_CODE;
|
||||
|
||||
#undef JMAKE_ENUM_LIST
|
||||
#endif /* JMAKE_ENUM_LIST */
|
||||
|
||||
/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */
|
||||
#undef JMESSAGE
|
||||
|
||||
|
||||
#ifndef JERROR_H
|
||||
#define JERROR_H
|
||||
|
||||
/* Macros to simplify using the error and trace message stuff */
|
||||
/* The first parameter is either type of cinfo pointer */
|
||||
|
||||
/* Fatal errors (print message and exit) */
|
||||
#define ERREXIT(cinfo,code) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT1(cinfo,code,p1) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT2(cinfo,code,p1,p2) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT3(cinfo,code,p1,p2,p3) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(cinfo)->err->msg_parm.i[2] = (p3), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT4(cinfo,code,p1,p2,p3,p4) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(cinfo)->err->msg_parm.i[2] = (p3), \
|
||||
(cinfo)->err->msg_parm.i[3] = (p4), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXITS(cinfo,code,str) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
|
||||
#define MAKESTMT(stuff) do { stuff } while (0)
|
||||
|
||||
/* Nonfatal errors (we can keep going, but the data is probably corrupt) */
|
||||
#define WARNMS(cinfo,code) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
|
||||
#define WARNMS1(cinfo,code,p1) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
|
||||
#define WARNMS2(cinfo,code,p1,p2) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
|
||||
|
||||
/* Informational/debugging messages */
|
||||
#define TRACEMS(cinfo,lvl,code) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
|
||||
#define TRACEMS1(cinfo,lvl,code,p1) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
|
||||
#define TRACEMS2(cinfo,lvl,code,p1,p2) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
|
||||
#define TRACEMS3(cinfo,lvl,code,p1,p2,p3) \
|
||||
MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
|
||||
_mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \
|
||||
(cinfo)->err->msg_code = (code); \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
|
||||
#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4) \
|
||||
MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
|
||||
_mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
|
||||
(cinfo)->err->msg_code = (code); \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
|
||||
#define TRACEMS5(cinfo,lvl,code,p1,p2,p3,p4,p5) \
|
||||
MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
|
||||
_mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
|
||||
_mp[4] = (p5); \
|
||||
(cinfo)->err->msg_code = (code); \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
|
||||
#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8) \
|
||||
MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
|
||||
_mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
|
||||
_mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \
|
||||
(cinfo)->err->msg_code = (code); \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
|
||||
#define TRACEMSS(cinfo,lvl,code,str) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
|
||||
|
||||
#endif /* JERROR_H */
|
||||
/*
|
||||
* jerror.h
|
||||
*
|
||||
* Copyright (C) 1994-1997, Thomas G. Lane.
|
||||
* Modified 1997-2009 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file defines the error and message codes for the JPEG library.
|
||||
* Edit this file to add new codes, or to translate the message strings to
|
||||
* some other language.
|
||||
* A set of error-reporting macros are defined too. Some applications using
|
||||
* the JPEG library may wish to include this file to get the error codes
|
||||
* and/or the macros.
|
||||
*/
|
||||
|
||||
/*
|
||||
* To define the enum list of message codes, include this file without
|
||||
* defining macro JMESSAGE. To create a message string table, include it
|
||||
* again with a suitable JMESSAGE definition (see jerror.c for an example).
|
||||
*/
|
||||
#ifndef JMESSAGE
|
||||
#ifndef JERROR_H
|
||||
/* First time through, define the enum list */
|
||||
#define JMAKE_ENUM_LIST
|
||||
#else
|
||||
/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */
|
||||
#define JMESSAGE(code,string)
|
||||
#endif /* JERROR_H */
|
||||
#endif /* JMESSAGE */
|
||||
|
||||
#ifdef JMAKE_ENUM_LIST
|
||||
|
||||
typedef enum {
|
||||
|
||||
#define JMESSAGE(code,string) code ,
|
||||
|
||||
#endif /* JMAKE_ENUM_LIST */
|
||||
|
||||
JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */
|
||||
|
||||
/* For maintenance convenience, list is alphabetical by message code name */
|
||||
JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix")
|
||||
JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix")
|
||||
JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode")
|
||||
JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS")
|
||||
JMESSAGE(JERR_BAD_CROP_SPEC, "Invalid crop request")
|
||||
JMESSAGE(JERR_BAD_DCT_COEF, "DCT coefficient out of range")
|
||||
JMESSAGE(JERR_BAD_DCTSIZE, "DCT scaled block size %dx%d not supported")
|
||||
JMESSAGE(JERR_BAD_DROP_SAMPLING,
|
||||
"Component index %d: mismatching sampling ratio %d:%d, %d:%d, %c")
|
||||
JMESSAGE(JERR_BAD_HUFF_TABLE, "Bogus Huffman table definition")
|
||||
JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace")
|
||||
JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace")
|
||||
JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length")
|
||||
JMESSAGE(JERR_BAD_LIB_VERSION,
|
||||
"Wrong JPEG library version: library is %d, caller expects %d")
|
||||
JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan")
|
||||
JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d")
|
||||
JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d")
|
||||
JMESSAGE(JERR_BAD_PROGRESSION,
|
||||
"Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d")
|
||||
JMESSAGE(JERR_BAD_PROG_SCRIPT,
|
||||
"Invalid progressive parameters at scan script entry %d")
|
||||
JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors")
|
||||
JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d")
|
||||
JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d")
|
||||
JMESSAGE(JERR_BAD_STRUCT_SIZE,
|
||||
"JPEG parameter struct mismatch: library thinks size is %u, caller expects %u")
|
||||
JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access")
|
||||
JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small")
|
||||
JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here")
|
||||
JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet")
|
||||
JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d")
|
||||
JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request")
|
||||
JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d")
|
||||
JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x")
|
||||
JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d")
|
||||
JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d")
|
||||
JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)")
|
||||
JMESSAGE(JERR_EMS_READ, "Read from EMS failed")
|
||||
JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed")
|
||||
JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan")
|
||||
JMESSAGE(JERR_FILE_READ, "Input file read error")
|
||||
JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?")
|
||||
JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet")
|
||||
JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow")
|
||||
JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry")
|
||||
JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels")
|
||||
JMESSAGE(JERR_INPUT_EMPTY, "Empty input file")
|
||||
JMESSAGE(JERR_INPUT_EOF, "Premature end of input file")
|
||||
JMESSAGE(JERR_MISMATCHED_QUANT_TABLE,
|
||||
"Cannot transcode due to multiple use of quantization table %d")
|
||||
JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data")
|
||||
JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change")
|
||||
JMESSAGE(JERR_NOTIMPL, "Not implemented yet")
|
||||
JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time")
|
||||
JMESSAGE(JERR_NO_ARITH_TABLE, "Arithmetic table 0x%02x was not defined")
|
||||
JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported")
|
||||
JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined")
|
||||
JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image")
|
||||
JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined")
|
||||
JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x")
|
||||
JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)")
|
||||
JMESSAGE(JERR_QUANT_COMPONENTS,
|
||||
"Cannot quantize more than %d color components")
|
||||
JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors")
|
||||
JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors")
|
||||
JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers")
|
||||
JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker")
|
||||
JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x")
|
||||
JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers")
|
||||
JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF")
|
||||
JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s")
|
||||
JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file")
|
||||
JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file")
|
||||
JMESSAGE(JERR_TFILE_WRITE,
|
||||
"Write failed on temporary file --- out of disk space?")
|
||||
JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines")
|
||||
JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x")
|
||||
JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up")
|
||||
JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation")
|
||||
JMESSAGE(JERR_XMS_READ, "Read from XMS failed")
|
||||
JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed")
|
||||
JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT)
|
||||
JMESSAGE(JMSG_VERSION, JVERSION)
|
||||
JMESSAGE(JTRC_16BIT_TABLES,
|
||||
"Caution: quantization tables are too coarse for baseline JPEG")
|
||||
JMESSAGE(JTRC_ADOBE,
|
||||
"Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d")
|
||||
JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u")
|
||||
JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u")
|
||||
JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x")
|
||||
JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x")
|
||||
JMESSAGE(JTRC_DQT, "Define Quantization Table %d precision %d")
|
||||
JMESSAGE(JTRC_DRI, "Define Restart Interval %u")
|
||||
JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u")
|
||||
JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u")
|
||||
JMESSAGE(JTRC_EOI, "End Of Image")
|
||||
JMESSAGE(JTRC_HUFFBITS, " %3d %3d %3d %3d %3d %3d %3d %3d")
|
||||
JMESSAGE(JTRC_JFIF, "JFIF APP0 marker: version %d.%02d, density %dx%d %d")
|
||||
JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE,
|
||||
"Warning: thumbnail image size does not match data length %u")
|
||||
JMESSAGE(JTRC_JFIF_EXTENSION,
|
||||
"JFIF extension marker: type 0x%02x, length %u")
|
||||
JMESSAGE(JTRC_JFIF_THUMBNAIL, " with %d x %d thumbnail image")
|
||||
JMESSAGE(JTRC_MISC_MARKER, "Miscellaneous marker 0x%02x, length %u")
|
||||
JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x")
|
||||
JMESSAGE(JTRC_QUANTVALS, " %4u %4u %4u %4u %4u %4u %4u %4u")
|
||||
JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors")
|
||||
JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors")
|
||||
JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization")
|
||||
JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d")
|
||||
JMESSAGE(JTRC_RST, "RST%d")
|
||||
JMESSAGE(JTRC_SMOOTH_NOTIMPL,
|
||||
"Smoothing not supported with nonstandard sampling ratios")
|
||||
JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d")
|
||||
JMESSAGE(JTRC_SOF_COMPONENT, " Component %d: %dhx%dv q=%d")
|
||||
JMESSAGE(JTRC_SOI, "Start of Image")
|
||||
JMESSAGE(JTRC_SOS, "Start Of Scan: %d components")
|
||||
JMESSAGE(JTRC_SOS_COMPONENT, " Component %d: dc=%d ac=%d")
|
||||
JMESSAGE(JTRC_SOS_PARAMS, " Ss=%d, Se=%d, Ah=%d, Al=%d")
|
||||
JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s")
|
||||
JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s")
|
||||
JMESSAGE(JTRC_THUMB_JPEG,
|
||||
"JFIF extension marker: JPEG-compressed thumbnail image, length %u")
|
||||
JMESSAGE(JTRC_THUMB_PALETTE,
|
||||
"JFIF extension marker: palette thumbnail image, length %u")
|
||||
JMESSAGE(JTRC_THUMB_RGB,
|
||||
"JFIF extension marker: RGB thumbnail image, length %u")
|
||||
JMESSAGE(JTRC_UNKNOWN_IDS,
|
||||
"Unrecognized component IDs %d %d %d, assuming YCbCr")
|
||||
JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u")
|
||||
JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u")
|
||||
JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d")
|
||||
JMESSAGE(JWRN_ARITH_BAD_CODE, "Corrupt JPEG data: bad arithmetic code")
|
||||
JMESSAGE(JWRN_BOGUS_PROGRESSION,
|
||||
"Inconsistent progression sequence for component %d coefficient %d")
|
||||
JMESSAGE(JWRN_EXTRANEOUS_DATA,
|
||||
"Corrupt JPEG data: %u extraneous bytes before marker 0x%02x")
|
||||
JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment")
|
||||
JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code")
|
||||
JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d")
|
||||
JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file")
|
||||
JMESSAGE(JWRN_MUST_RESYNC,
|
||||
"Corrupt JPEG data: found marker 0x%02x instead of RST%d")
|
||||
JMESSAGE(JWRN_NOT_SEQUENTIAL, "Invalid SOS parameters for sequential JPEG")
|
||||
JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines")
|
||||
|
||||
#ifdef JMAKE_ENUM_LIST
|
||||
|
||||
JMSG_LASTMSGCODE
|
||||
} J_MESSAGE_CODE;
|
||||
|
||||
#undef JMAKE_ENUM_LIST
|
||||
#endif /* JMAKE_ENUM_LIST */
|
||||
|
||||
/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */
|
||||
#undef JMESSAGE
|
||||
|
||||
|
||||
#ifndef JERROR_H
|
||||
#define JERROR_H
|
||||
|
||||
/* Macros to simplify using the error and trace message stuff */
|
||||
/* The first parameter is either type of cinfo pointer */
|
||||
|
||||
/* Fatal errors (print message and exit) */
|
||||
#define ERREXIT(cinfo,code) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT1(cinfo,code,p1) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT2(cinfo,code,p1,p2) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT3(cinfo,code,p1,p2,p3) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(cinfo)->err->msg_parm.i[2] = (p3), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT4(cinfo,code,p1,p2,p3,p4) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(cinfo)->err->msg_parm.i[2] = (p3), \
|
||||
(cinfo)->err->msg_parm.i[3] = (p4), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXIT6(cinfo,code,p1,p2,p3,p4,p5,p6) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(cinfo)->err->msg_parm.i[2] = (p3), \
|
||||
(cinfo)->err->msg_parm.i[3] = (p4), \
|
||||
(cinfo)->err->msg_parm.i[4] = (p5), \
|
||||
(cinfo)->err->msg_parm.i[5] = (p6), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
#define ERREXITS(cinfo,code,str) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \
|
||||
(*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
|
||||
|
||||
#define MAKESTMT(stuff) do { stuff } while (0)
|
||||
|
||||
/* Nonfatal errors (we can keep going, but the data is probably corrupt) */
|
||||
#define WARNMS(cinfo,code) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
|
||||
#define WARNMS1(cinfo,code,p1) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
|
||||
#define WARNMS2(cinfo,code,p1,p2) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
|
||||
|
||||
/* Informational/debugging messages */
|
||||
#define TRACEMS(cinfo,lvl,code) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
|
||||
#define TRACEMS1(cinfo,lvl,code,p1) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
|
||||
#define TRACEMS2(cinfo,lvl,code,p1,p2) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
(cinfo)->err->msg_parm.i[0] = (p1), \
|
||||
(cinfo)->err->msg_parm.i[1] = (p2), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
|
||||
#define TRACEMS3(cinfo,lvl,code,p1,p2,p3) \
|
||||
MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
|
||||
_mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \
|
||||
(cinfo)->err->msg_code = (code); \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
|
||||
#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4) \
|
||||
MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
|
||||
_mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
|
||||
(cinfo)->err->msg_code = (code); \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
|
||||
#define TRACEMS5(cinfo,lvl,code,p1,p2,p3,p4,p5) \
|
||||
MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
|
||||
_mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
|
||||
_mp[4] = (p5); \
|
||||
(cinfo)->err->msg_code = (code); \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
|
||||
#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8) \
|
||||
MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
|
||||
_mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
|
||||
_mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \
|
||||
(cinfo)->err->msg_code = (code); \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
|
||||
#define TRACEMSS(cinfo,lvl,code,str) \
|
||||
((cinfo)->err->msg_code = (code), \
|
||||
strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \
|
||||
(*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
|
||||
|
||||
#endif /* JERROR_H */
|
||||
|
|
|
@ -1,91 +1,91 @@
|
|||
/*
|
||||
* jinclude.h
|
||||
*
|
||||
* Copyright (C) 1991-1994, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file exists to provide a single place to fix any problems with
|
||||
* including the wrong system include files. (Common problems are taken
|
||||
* care of by the standard jconfig symbols, but on really weird systems
|
||||
* you may have to edit this file.)
|
||||
*
|
||||
* NOTE: this file is NOT intended to be included by applications using the
|
||||
* JPEG library. Most applications need only include jpeglib.h.
|
||||
*/
|
||||
|
||||
|
||||
/* Include auto-config file to find out which system include files we need. */
|
||||
|
||||
#include "jconfig.h" /* auto configuration options */
|
||||
#define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */
|
||||
|
||||
/*
|
||||
* We need the NULL macro and size_t typedef.
|
||||
* On an ANSI-conforming system it is sufficient to include <stddef.h>.
|
||||
* Otherwise, we get them from <stdlib.h> or <stdio.h>; we may have to
|
||||
* pull in <sys/types.h> as well.
|
||||
* Note that the core JPEG library does not require <stdio.h>;
|
||||
* only the default error handler and data source/destination modules do.
|
||||
* But we must pull it in because of the references to FILE in jpeglib.h.
|
||||
* You can remove those references if you want to compile without <stdio.h>.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_STDDEF_H
|
||||
#include <stddef.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_STDLIB_H
|
||||
#include <stdlib.h>
|
||||
#endif
|
||||
|
||||
#ifdef NEED_SYS_TYPES_H
|
||||
#include <sys/types.h>
|
||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
/*
|
||||
* We need memory copying and zeroing functions, plus strncpy().
|
||||
* ANSI and System V implementations declare these in <string.h>.
|
||||
* BSD doesn't have the mem() functions, but it does have bcopy()/bzero().
|
||||
* Some systems may declare memset and memcpy in <memory.h>.
|
||||
*
|
||||
* NOTE: we assume the size parameters to these functions are of type size_t.
|
||||
* Change the casts in these macros if not!
|
||||
*/
|
||||
|
||||
#ifdef NEED_BSD_STRINGS
|
||||
|
||||
#include <strings.h>
|
||||
#define MEMZERO(target,size) bzero((void *)(target), (size_t)(size))
|
||||
#define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size))
|
||||
|
||||
#else /* not BSD, assume ANSI/SysV string lib */
|
||||
|
||||
#include <string.h>
|
||||
#define MEMZERO(target,size) memset((void *)(target), 0, (size_t)(size))
|
||||
#define MEMCOPY(dest,src,size) memcpy((void *)(dest), (const void *)(src), (size_t)(size))
|
||||
|
||||
#endif
|
||||
|
||||
/*
|
||||
* In ANSI C, and indeed any rational implementation, size_t is also the
|
||||
* type returned by sizeof(). However, it seems there are some irrational
|
||||
* implementations out there, in which sizeof() returns an int even though
|
||||
* size_t is defined as long or unsigned long. To ensure consistent results
|
||||
* we always use this SIZEOF() macro in place of using sizeof() directly.
|
||||
*/
|
||||
|
||||
#define SIZEOF(object) ((size_t) sizeof(object))
|
||||
|
||||
/*
|
||||
* The modules that use fread() and fwrite() always invoke them through
|
||||
* these macros. On some systems you may need to twiddle the argument casts.
|
||||
* CAUTION: argument order is different from underlying functions!
|
||||
*/
|
||||
|
||||
#define JFREAD(file,buf,sizeofbuf) \
|
||||
((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
|
||||
#define JFWRITE(file,buf,sizeofbuf) \
|
||||
((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
|
||||
/*
|
||||
* jinclude.h
|
||||
*
|
||||
* Copyright (C) 1991-1994, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file exists to provide a single place to fix any problems with
|
||||
* including the wrong system include files. (Common problems are taken
|
||||
* care of by the standard jconfig symbols, but on really weird systems
|
||||
* you may have to edit this file.)
|
||||
*
|
||||
* NOTE: this file is NOT intended to be included by applications using the
|
||||
* JPEG library. Most applications need only include jpeglib.h.
|
||||
*/
|
||||
|
||||
|
||||
/* Include auto-config file to find out which system include files we need. */
|
||||
|
||||
#include "jconfig.h" /* auto configuration options */
|
||||
#define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */
|
||||
|
||||
/*
|
||||
* We need the NULL macro and size_t typedef.
|
||||
* On an ANSI-conforming system it is sufficient to include <stddef.h>.
|
||||
* Otherwise, we get them from <stdlib.h> or <stdio.h>; we may have to
|
||||
* pull in <sys/types.h> as well.
|
||||
* Note that the core JPEG library does not require <stdio.h>;
|
||||
* only the default error handler and data source/destination modules do.
|
||||
* But we must pull it in because of the references to FILE in jpeglib.h.
|
||||
* You can remove those references if you want to compile without <stdio.h>.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_STDDEF_H
|
||||
#include <stddef.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_STDLIB_H
|
||||
#include <stdlib.h>
|
||||
#endif
|
||||
|
||||
#ifdef NEED_SYS_TYPES_H
|
||||
#include <sys/types.h>
|
||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
/*
|
||||
* We need memory copying and zeroing functions, plus strncpy().
|
||||
* ANSI and System V implementations declare these in <string.h>.
|
||||
* BSD doesn't have the mem() functions, but it does have bcopy()/bzero().
|
||||
* Some systems may declare memset and memcpy in <memory.h>.
|
||||
*
|
||||
* NOTE: we assume the size parameters to these functions are of type size_t.
|
||||
* Change the casts in these macros if not!
|
||||
*/
|
||||
|
||||
#ifdef NEED_BSD_STRINGS
|
||||
|
||||
#include <strings.h>
|
||||
#define MEMZERO(target,size) bzero((void *)(target), (size_t)(size))
|
||||
#define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size))
|
||||
|
||||
#else /* not BSD, assume ANSI/SysV string lib */
|
||||
|
||||
#include <string.h>
|
||||
#define MEMZERO(target,size) memset((void *)(target), 0, (size_t)(size))
|
||||
#define MEMCOPY(dest,src,size) memcpy((void *)(dest), (const void *)(src), (size_t)(size))
|
||||
|
||||
#endif
|
||||
|
||||
/*
|
||||
* In ANSI C, and indeed any rational implementation, size_t is also the
|
||||
* type returned by sizeof(). However, it seems there are some irrational
|
||||
* implementations out there, in which sizeof() returns an int even though
|
||||
* size_t is defined as long or unsigned long. To ensure consistent results
|
||||
* we always use this SIZEOF() macro in place of using sizeof() directly.
|
||||
*/
|
||||
|
||||
#define SIZEOF(object) ((size_t) sizeof(object))
|
||||
|
||||
/*
|
||||
* The modules that use fread() and fwrite() always invoke them through
|
||||
* these macros. On some systems you may need to twiddle the argument casts.
|
||||
* CAUTION: argument order is different from underlying functions!
|
||||
*/
|
||||
|
||||
#define JFREAD(file,buf,sizeofbuf) \
|
||||
((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
|
||||
#define JFWRITE(file,buf,sizeofbuf) \
|
||||
((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
|
||||
|
|
|
@ -1,198 +1,198 @@
|
|||
/*
|
||||
* jmemsys.h
|
||||
*
|
||||
* Copyright (C) 1992-1997, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This include file defines the interface between the system-independent
|
||||
* and system-dependent portions of the JPEG memory manager. No other
|
||||
* modules need include it. (The system-independent portion is jmemmgr.c;
|
||||
* there are several different versions of the system-dependent portion.)
|
||||
*
|
||||
* This file works as-is for the system-dependent memory managers supplied
|
||||
* in the IJG distribution. You may need to modify it if you write a
|
||||
* custom memory manager. If system-dependent changes are needed in
|
||||
* this file, the best method is to #ifdef them based on a configuration
|
||||
* symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR
|
||||
* and USE_MAC_MEMMGR.
|
||||
*/
|
||||
|
||||
|
||||
/* Short forms of external names for systems with brain-damaged linkers. */
|
||||
|
||||
#ifdef NEED_SHORT_EXTERNAL_NAMES
|
||||
#define jpeg_get_small jGetSmall
|
||||
#define jpeg_free_small jFreeSmall
|
||||
#define jpeg_get_large jGetLarge
|
||||
#define jpeg_free_large jFreeLarge
|
||||
#define jpeg_mem_available jMemAvail
|
||||
#define jpeg_open_backing_store jOpenBackStore
|
||||
#define jpeg_mem_init jMemInit
|
||||
#define jpeg_mem_term jMemTerm
|
||||
#endif /* NEED_SHORT_EXTERNAL_NAMES */
|
||||
|
||||
|
||||
/*
|
||||
* These two functions are used to allocate and release small chunks of
|
||||
* memory. (Typically the total amount requested through jpeg_get_small is
|
||||
* no more than 20K or so; this will be requested in chunks of a few K each.)
|
||||
* Behavior should be the same as for the standard library functions malloc
|
||||
* and free; in particular, jpeg_get_small must return NULL on failure.
|
||||
* On most systems, these ARE malloc and free. jpeg_free_small is passed the
|
||||
* size of the object being freed, just in case it's needed.
|
||||
* On an 80x86 machine using small-data memory model, these manage near heap.
|
||||
*/
|
||||
|
||||
EXTERN(void *) jpeg_get_small JPP((j_common_ptr cinfo, size_t sizeofobject));
|
||||
EXTERN(void) jpeg_free_small JPP((j_common_ptr cinfo, void * object,
|
||||
size_t sizeofobject));
|
||||
|
||||
/*
|
||||
* These two functions are used to allocate and release large chunks of
|
||||
* memory (up to the total free space designated by jpeg_mem_available).
|
||||
* The interface is the same as above, except that on an 80x86 machine,
|
||||
* far pointers are used. On most other machines these are identical to
|
||||
* the jpeg_get/free_small routines; but we keep them separate anyway,
|
||||
* in case a different allocation strategy is desirable for large chunks.
|
||||
*/
|
||||
|
||||
EXTERN(void FAR *) jpeg_get_large JPP((j_common_ptr cinfo,
|
||||
size_t sizeofobject));
|
||||
EXTERN(void) jpeg_free_large JPP((j_common_ptr cinfo, void FAR * object,
|
||||
size_t sizeofobject));
|
||||
|
||||
/*
|
||||
* The macro MAX_ALLOC_CHUNK designates the maximum number of bytes that may
|
||||
* be requested in a single call to jpeg_get_large (and jpeg_get_small for that
|
||||
* matter, but that case should never come into play). This macro is needed
|
||||
* to model the 64Kb-segment-size limit of far addressing on 80x86 machines.
|
||||
* On those machines, we expect that jconfig.h will provide a proper value.
|
||||
* On machines with 32-bit flat address spaces, any large constant may be used.
|
||||
*
|
||||
* NB: jmemmgr.c expects that MAX_ALLOC_CHUNK will be representable as type
|
||||
* size_t and will be a multiple of sizeof(align_type).
|
||||
*/
|
||||
|
||||
#ifndef MAX_ALLOC_CHUNK /* may be overridden in jconfig.h */
|
||||
#define MAX_ALLOC_CHUNK 1000000000L
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This routine computes the total space still available for allocation by
|
||||
* jpeg_get_large. If more space than this is needed, backing store will be
|
||||
* used. NOTE: any memory already allocated must not be counted.
|
||||
*
|
||||
* There is a minimum space requirement, corresponding to the minimum
|
||||
* feasible buffer sizes; jmemmgr.c will request that much space even if
|
||||
* jpeg_mem_available returns zero. The maximum space needed, enough to hold
|
||||
* all working storage in memory, is also passed in case it is useful.
|
||||
* Finally, the total space already allocated is passed. If no better
|
||||
* method is available, cinfo->mem->max_memory_to_use - already_allocated
|
||||
* is often a suitable calculation.
|
||||
*
|
||||
* It is OK for jpeg_mem_available to underestimate the space available
|
||||
* (that'll just lead to more backing-store access than is really necessary).
|
||||
* However, an overestimate will lead to failure. Hence it's wise to subtract
|
||||
* a slop factor from the true available space. 5% should be enough.
|
||||
*
|
||||
* On machines with lots of virtual memory, any large constant may be returned.
|
||||
* Conversely, zero may be returned to always use the minimum amount of memory.
|
||||
*/
|
||||
|
||||
EXTERN(long) jpeg_mem_available JPP((j_common_ptr cinfo,
|
||||
long min_bytes_needed,
|
||||
long max_bytes_needed,
|
||||
long already_allocated));
|
||||
|
||||
|
||||
/*
|
||||
* This structure holds whatever state is needed to access a single
|
||||
* backing-store object. The read/write/close method pointers are called
|
||||
* by jmemmgr.c to manipulate the backing-store object; all other fields
|
||||
* are private to the system-dependent backing store routines.
|
||||
*/
|
||||
|
||||
#define TEMP_NAME_LENGTH 64 /* max length of a temporary file's name */
|
||||
|
||||
|
||||
#ifdef USE_MSDOS_MEMMGR /* DOS-specific junk */
|
||||
|
||||
typedef unsigned short XMSH; /* type of extended-memory handles */
|
||||
typedef unsigned short EMSH; /* type of expanded-memory handles */
|
||||
|
||||
typedef union {
|
||||
short file_handle; /* DOS file handle if it's a temp file */
|
||||
XMSH xms_handle; /* handle if it's a chunk of XMS */
|
||||
EMSH ems_handle; /* handle if it's a chunk of EMS */
|
||||
} handle_union;
|
||||
|
||||
#endif /* USE_MSDOS_MEMMGR */
|
||||
|
||||
#ifdef USE_MAC_MEMMGR /* Mac-specific junk */
|
||||
#include <Files.h>
|
||||
#endif /* USE_MAC_MEMMGR */
|
||||
|
||||
|
||||
typedef struct backing_store_struct * backing_store_ptr;
|
||||
|
||||
typedef struct backing_store_struct {
|
||||
/* Methods for reading/writing/closing this backing-store object */
|
||||
JMETHOD(void, read_backing_store, (j_common_ptr cinfo,
|
||||
backing_store_ptr info,
|
||||
void FAR * buffer_address,
|
||||
long file_offset, long byte_count));
|
||||
JMETHOD(void, write_backing_store, (j_common_ptr cinfo,
|
||||
backing_store_ptr info,
|
||||
void FAR * buffer_address,
|
||||
long file_offset, long byte_count));
|
||||
JMETHOD(void, close_backing_store, (j_common_ptr cinfo,
|
||||
backing_store_ptr info));
|
||||
|
||||
/* Private fields for system-dependent backing-store management */
|
||||
#ifdef USE_MSDOS_MEMMGR
|
||||
/* For the MS-DOS manager (jmemdos.c), we need: */
|
||||
handle_union handle; /* reference to backing-store storage object */
|
||||
char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */
|
||||
#else
|
||||
#ifdef USE_MAC_MEMMGR
|
||||
/* For the Mac manager (jmemmac.c), we need: */
|
||||
short temp_file; /* file reference number to temp file */
|
||||
FSSpec tempSpec; /* the FSSpec for the temp file */
|
||||
char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */
|
||||
#else
|
||||
/* For a typical implementation with temp files, we need: */
|
||||
FILE * temp_file; /* stdio reference to temp file */
|
||||
char temp_name[TEMP_NAME_LENGTH]; /* name of temp file */
|
||||
#endif
|
||||
#endif
|
||||
} backing_store_info;
|
||||
|
||||
|
||||
/*
|
||||
* Initial opening of a backing-store object. This must fill in the
|
||||
* read/write/close pointers in the object. The read/write routines
|
||||
* may take an error exit if the specified maximum file size is exceeded.
|
||||
* (If jpeg_mem_available always returns a large value, this routine can
|
||||
* just take an error exit.)
|
||||
*/
|
||||
|
||||
EXTERN(void) jpeg_open_backing_store JPP((j_common_ptr cinfo,
|
||||
backing_store_ptr info,
|
||||
long total_bytes_needed));
|
||||
|
||||
|
||||
/*
|
||||
* These routines take care of any system-dependent initialization and
|
||||
* cleanup required. jpeg_mem_init will be called before anything is
|
||||
* allocated (and, therefore, nothing in cinfo is of use except the error
|
||||
* manager pointer). It should return a suitable default value for
|
||||
* max_memory_to_use; this may subsequently be overridden by the surrounding
|
||||
* application. (Note that max_memory_to_use is only important if
|
||||
* jpeg_mem_available chooses to consult it ... no one else will.)
|
||||
* jpeg_mem_term may assume that all requested memory has been freed and that
|
||||
* all opened backing-store objects have been closed.
|
||||
*/
|
||||
|
||||
EXTERN(long) jpeg_mem_init JPP((j_common_ptr cinfo));
|
||||
EXTERN(void) jpeg_mem_term JPP((j_common_ptr cinfo));
|
||||
/*
|
||||
* jmemsys.h
|
||||
*
|
||||
* Copyright (C) 1992-1997, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This include file defines the interface between the system-independent
|
||||
* and system-dependent portions of the JPEG memory manager. No other
|
||||
* modules need include it. (The system-independent portion is jmemmgr.c;
|
||||
* there are several different versions of the system-dependent portion.)
|
||||
*
|
||||
* This file works as-is for the system-dependent memory managers supplied
|
||||
* in the IJG distribution. You may need to modify it if you write a
|
||||
* custom memory manager. If system-dependent changes are needed in
|
||||
* this file, the best method is to #ifdef them based on a configuration
|
||||
* symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR
|
||||
* and USE_MAC_MEMMGR.
|
||||
*/
|
||||
|
||||
|
||||
/* Short forms of external names for systems with brain-damaged linkers. */
|
||||
|
||||
#ifdef NEED_SHORT_EXTERNAL_NAMES
|
||||
#define jpeg_get_small jGetSmall
|
||||
#define jpeg_free_small jFreeSmall
|
||||
#define jpeg_get_large jGetLarge
|
||||
#define jpeg_free_large jFreeLarge
|
||||
#define jpeg_mem_available jMemAvail
|
||||
#define jpeg_open_backing_store jOpenBackStore
|
||||
#define jpeg_mem_init jMemInit
|
||||
#define jpeg_mem_term jMemTerm
|
||||
#endif /* NEED_SHORT_EXTERNAL_NAMES */
|
||||
|
||||
|
||||
/*
|
||||
* These two functions are used to allocate and release small chunks of
|
||||
* memory. (Typically the total amount requested through jpeg_get_small is
|
||||
* no more than 20K or so; this will be requested in chunks of a few K each.)
|
||||
* Behavior should be the same as for the standard library functions malloc
|
||||
* and free; in particular, jpeg_get_small must return NULL on failure.
|
||||
* On most systems, these ARE malloc and free. jpeg_free_small is passed the
|
||||
* size of the object being freed, just in case it's needed.
|
||||
* On an 80x86 machine using small-data memory model, these manage near heap.
|
||||
*/
|
||||
|
||||
EXTERN(void *) jpeg_get_small JPP((j_common_ptr cinfo, size_t sizeofobject));
|
||||
EXTERN(void) jpeg_free_small JPP((j_common_ptr cinfo, void * object,
|
||||
size_t sizeofobject));
|
||||
|
||||
/*
|
||||
* These two functions are used to allocate and release large chunks of
|
||||
* memory (up to the total free space designated by jpeg_mem_available).
|
||||
* The interface is the same as above, except that on an 80x86 machine,
|
||||
* far pointers are used. On most other machines these are identical to
|
||||
* the jpeg_get/free_small routines; but we keep them separate anyway,
|
||||
* in case a different allocation strategy is desirable for large chunks.
|
||||
*/
|
||||
|
||||
EXTERN(void FAR *) jpeg_get_large JPP((j_common_ptr cinfo,
|
||||
size_t sizeofobject));
|
||||
EXTERN(void) jpeg_free_large JPP((j_common_ptr cinfo, void FAR * object,
|
||||
size_t sizeofobject));
|
||||
|
||||
/*
|
||||
* The macro MAX_ALLOC_CHUNK designates the maximum number of bytes that may
|
||||
* be requested in a single call to jpeg_get_large (and jpeg_get_small for that
|
||||
* matter, but that case should never come into play). This macro is needed
|
||||
* to model the 64Kb-segment-size limit of far addressing on 80x86 machines.
|
||||
* On those machines, we expect that jconfig.h will provide a proper value.
|
||||
* On machines with 32-bit flat address spaces, any large constant may be used.
|
||||
*
|
||||
* NB: jmemmgr.c expects that MAX_ALLOC_CHUNK will be representable as type
|
||||
* size_t and will be a multiple of sizeof(align_type).
|
||||
*/
|
||||
|
||||
#ifndef MAX_ALLOC_CHUNK /* may be overridden in jconfig.h */
|
||||
#define MAX_ALLOC_CHUNK 1000000000L
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This routine computes the total space still available for allocation by
|
||||
* jpeg_get_large. If more space than this is needed, backing store will be
|
||||
* used. NOTE: any memory already allocated must not be counted.
|
||||
*
|
||||
* There is a minimum space requirement, corresponding to the minimum
|
||||
* feasible buffer sizes; jmemmgr.c will request that much space even if
|
||||
* jpeg_mem_available returns zero. The maximum space needed, enough to hold
|
||||
* all working storage in memory, is also passed in case it is useful.
|
||||
* Finally, the total space already allocated is passed. If no better
|
||||
* method is available, cinfo->mem->max_memory_to_use - already_allocated
|
||||
* is often a suitable calculation.
|
||||
*
|
||||
* It is OK for jpeg_mem_available to underestimate the space available
|
||||
* (that'll just lead to more backing-store access than is really necessary).
|
||||
* However, an overestimate will lead to failure. Hence it's wise to subtract
|
||||
* a slop factor from the true available space. 5% should be enough.
|
||||
*
|
||||
* On machines with lots of virtual memory, any large constant may be returned.
|
||||
* Conversely, zero may be returned to always use the minimum amount of memory.
|
||||
*/
|
||||
|
||||
EXTERN(long) jpeg_mem_available JPP((j_common_ptr cinfo,
|
||||
long min_bytes_needed,
|
||||
long max_bytes_needed,
|
||||
long already_allocated));
|
||||
|
||||
|
||||
/*
|
||||
* This structure holds whatever state is needed to access a single
|
||||
* backing-store object. The read/write/close method pointers are called
|
||||
* by jmemmgr.c to manipulate the backing-store object; all other fields
|
||||
* are private to the system-dependent backing store routines.
|
||||
*/
|
||||
|
||||
#define TEMP_NAME_LENGTH 64 /* max length of a temporary file's name */
|
||||
|
||||
|
||||
#ifdef USE_MSDOS_MEMMGR /* DOS-specific junk */
|
||||
|
||||
typedef unsigned short XMSH; /* type of extended-memory handles */
|
||||
typedef unsigned short EMSH; /* type of expanded-memory handles */
|
||||
|
||||
typedef union {
|
||||
short file_handle; /* DOS file handle if it's a temp file */
|
||||
XMSH xms_handle; /* handle if it's a chunk of XMS */
|
||||
EMSH ems_handle; /* handle if it's a chunk of EMS */
|
||||
} handle_union;
|
||||
|
||||
#endif /* USE_MSDOS_MEMMGR */
|
||||
|
||||
#ifdef USE_MAC_MEMMGR /* Mac-specific junk */
|
||||
#include <Files.h>
|
||||
#endif /* USE_MAC_MEMMGR */
|
||||
|
||||
|
||||
typedef struct backing_store_struct * backing_store_ptr;
|
||||
|
||||
typedef struct backing_store_struct {
|
||||
/* Methods for reading/writing/closing this backing-store object */
|
||||
JMETHOD(void, read_backing_store, (j_common_ptr cinfo,
|
||||
backing_store_ptr info,
|
||||
void FAR * buffer_address,
|
||||
long file_offset, long byte_count));
|
||||
JMETHOD(void, write_backing_store, (j_common_ptr cinfo,
|
||||
backing_store_ptr info,
|
||||
void FAR * buffer_address,
|
||||
long file_offset, long byte_count));
|
||||
JMETHOD(void, close_backing_store, (j_common_ptr cinfo,
|
||||
backing_store_ptr info));
|
||||
|
||||
/* Private fields for system-dependent backing-store management */
|
||||
#ifdef USE_MSDOS_MEMMGR
|
||||
/* For the MS-DOS manager (jmemdos.c), we need: */
|
||||
handle_union handle; /* reference to backing-store storage object */
|
||||
char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */
|
||||
#else
|
||||
#ifdef USE_MAC_MEMMGR
|
||||
/* For the Mac manager (jmemmac.c), we need: */
|
||||
short temp_file; /* file reference number to temp file */
|
||||
FSSpec tempSpec; /* the FSSpec for the temp file */
|
||||
char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */
|
||||
#else
|
||||
/* For a typical implementation with temp files, we need: */
|
||||
FILE * temp_file; /* stdio reference to temp file */
|
||||
char temp_name[TEMP_NAME_LENGTH]; /* name of temp file */
|
||||
#endif
|
||||
#endif
|
||||
} backing_store_info;
|
||||
|
||||
|
||||
/*
|
||||
* Initial opening of a backing-store object. This must fill in the
|
||||
* read/write/close pointers in the object. The read/write routines
|
||||
* may take an error exit if the specified maximum file size is exceeded.
|
||||
* (If jpeg_mem_available always returns a large value, this routine can
|
||||
* just take an error exit.)
|
||||
*/
|
||||
|
||||
EXTERN(void) jpeg_open_backing_store JPP((j_common_ptr cinfo,
|
||||
backing_store_ptr info,
|
||||
long total_bytes_needed));
|
||||
|
||||
|
||||
/*
|
||||
* These routines take care of any system-dependent initialization and
|
||||
* cleanup required. jpeg_mem_init will be called before anything is
|
||||
* allocated (and, therefore, nothing in cinfo is of use except the error
|
||||
* manager pointer). It should return a suitable default value for
|
||||
* max_memory_to_use; this may subsequently be overridden by the surrounding
|
||||
* application. (Note that max_memory_to_use is only important if
|
||||
* jpeg_mem_available chooses to consult it ... no one else will.)
|
||||
* jpeg_mem_term may assume that all requested memory has been freed and that
|
||||
* all opened backing-store objects have been closed.
|
||||
*/
|
||||
|
||||
EXTERN(long) jpeg_mem_init JPP((j_common_ptr cinfo));
|
||||
EXTERN(void) jpeg_mem_term JPP((j_common_ptr cinfo));
|
||||
|
|
|
@ -1,363 +1,371 @@
|
|||
/*
|
||||
* jmorecfg.h
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file contains additional configuration options that customize the
|
||||
* JPEG software for special applications or support machine-dependent
|
||||
* optimizations. Most users will not need to touch this file.
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
* Define BITS_IN_JSAMPLE as either
|
||||
* 8 for 8-bit sample values (the usual setting)
|
||||
* 12 for 12-bit sample values
|
||||
* Only 8 and 12 are legal data precisions for lossy JPEG according to the
|
||||
* JPEG standard, and the IJG code does not support anything else!
|
||||
* We do not support run-time selection of data precision, sorry.
|
||||
*/
|
||||
|
||||
#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */
|
||||
|
||||
|
||||
/*
|
||||
* Maximum number of components (color channels) allowed in JPEG image.
|
||||
* To meet the letter of the JPEG spec, set this to 255. However, darn
|
||||
* few applications need more than 4 channels (maybe 5 for CMYK + alpha
|
||||
* mask). We recommend 10 as a reasonable compromise; use 4 if you are
|
||||
* really short on memory. (Each allowed component costs a hundred or so
|
||||
* bytes of storage, whether actually used in an image or not.)
|
||||
*/
|
||||
|
||||
#define MAX_COMPONENTS 10 /* maximum number of image components */
|
||||
|
||||
|
||||
/*
|
||||
* Basic data types.
|
||||
* You may need to change these if you have a machine with unusual data
|
||||
* type sizes; for example, "char" not 8 bits, "short" not 16 bits,
|
||||
* or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits,
|
||||
* but it had better be at least 16.
|
||||
*/
|
||||
|
||||
/* Representation of a single sample (pixel element value).
|
||||
* We frequently allocate large arrays of these, so it's important to keep
|
||||
* them small. But if you have memory to burn and access to char or short
|
||||
* arrays is very slow on your hardware, you might want to change these.
|
||||
*/
|
||||
|
||||
#if BITS_IN_JSAMPLE == 8
|
||||
/* JSAMPLE should be the smallest type that will hold the values 0..255.
|
||||
* You can use a signed char by having GETJSAMPLE mask it with 0xFF.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_UNSIGNED_CHAR
|
||||
|
||||
typedef unsigned char JSAMPLE;
|
||||
#define GETJSAMPLE(value) ((int) (value))
|
||||
|
||||
#else /* not HAVE_UNSIGNED_CHAR */
|
||||
|
||||
typedef char JSAMPLE;
|
||||
#ifdef CHAR_IS_UNSIGNED
|
||||
#define GETJSAMPLE(value) ((int) (value))
|
||||
#else
|
||||
#define GETJSAMPLE(value) ((int) (value) & 0xFF)
|
||||
#endif /* CHAR_IS_UNSIGNED */
|
||||
|
||||
#endif /* HAVE_UNSIGNED_CHAR */
|
||||
|
||||
#define MAXJSAMPLE 255
|
||||
#define CENTERJSAMPLE 128
|
||||
|
||||
#endif /* BITS_IN_JSAMPLE == 8 */
|
||||
|
||||
|
||||
#if BITS_IN_JSAMPLE == 12
|
||||
/* JSAMPLE should be the smallest type that will hold the values 0..4095.
|
||||
* On nearly all machines "short" will do nicely.
|
||||
*/
|
||||
|
||||
typedef short JSAMPLE;
|
||||
#define GETJSAMPLE(value) ((int) (value))
|
||||
|
||||
#define MAXJSAMPLE 4095
|
||||
#define CENTERJSAMPLE 2048
|
||||
|
||||
#endif /* BITS_IN_JSAMPLE == 12 */
|
||||
|
||||
|
||||
/* Representation of a DCT frequency coefficient.
|
||||
* This should be a signed value of at least 16 bits; "short" is usually OK.
|
||||
* Again, we allocate large arrays of these, but you can change to int
|
||||
* if you have memory to burn and "short" is really slow.
|
||||
*/
|
||||
|
||||
typedef short JCOEF;
|
||||
|
||||
|
||||
/* Compressed datastreams are represented as arrays of JOCTET.
|
||||
* These must be EXACTLY 8 bits wide, at least once they are written to
|
||||
* external storage. Note that when using the stdio data source/destination
|
||||
* managers, this is also the data type passed to fread/fwrite.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_UNSIGNED_CHAR
|
||||
|
||||
typedef unsigned char JOCTET;
|
||||
#define GETJOCTET(value) (value)
|
||||
|
||||
#else /* not HAVE_UNSIGNED_CHAR */
|
||||
|
||||
typedef char JOCTET;
|
||||
#ifdef CHAR_IS_UNSIGNED
|
||||
#define GETJOCTET(value) (value)
|
||||
#else
|
||||
#define GETJOCTET(value) ((value) & 0xFF)
|
||||
#endif /* CHAR_IS_UNSIGNED */
|
||||
|
||||
#endif /* HAVE_UNSIGNED_CHAR */
|
||||
|
||||
|
||||
/* These typedefs are used for various table entries and so forth.
|
||||
* They must be at least as wide as specified; but making them too big
|
||||
* won't cost a huge amount of memory, so we don't provide special
|
||||
* extraction code like we did for JSAMPLE. (In other words, these
|
||||
* typedefs live at a different point on the speed/space tradeoff curve.)
|
||||
*/
|
||||
|
||||
/* UINT8 must hold at least the values 0..255. */
|
||||
|
||||
#ifdef HAVE_UNSIGNED_CHAR
|
||||
typedef unsigned char UINT8;
|
||||
#else /* not HAVE_UNSIGNED_CHAR */
|
||||
#ifdef CHAR_IS_UNSIGNED
|
||||
typedef char UINT8;
|
||||
#else /* not CHAR_IS_UNSIGNED */
|
||||
typedef short UINT8;
|
||||
#endif /* CHAR_IS_UNSIGNED */
|
||||
#endif /* HAVE_UNSIGNED_CHAR */
|
||||
|
||||
/* UINT16 must hold at least the values 0..65535. */
|
||||
|
||||
#ifdef HAVE_UNSIGNED_SHORT
|
||||
typedef unsigned short UINT16;
|
||||
#else /* not HAVE_UNSIGNED_SHORT */
|
||||
typedef unsigned int UINT16;
|
||||
#endif /* HAVE_UNSIGNED_SHORT */
|
||||
|
||||
/* INT16 must hold at least the values -32768..32767. */
|
||||
|
||||
#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */
|
||||
typedef short INT16;
|
||||
#endif
|
||||
|
||||
/* INT32 must hold at least signed 32-bit values. */
|
||||
|
||||
#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */
|
||||
typedef long INT32;
|
||||
#endif
|
||||
|
||||
/* Datatype used for image dimensions. The JPEG standard only supports
|
||||
* images up to 64K*64K due to 16-bit fields in SOF markers. Therefore
|
||||
* "unsigned int" is sufficient on all machines. However, if you need to
|
||||
* handle larger images and you don't mind deviating from the spec, you
|
||||
* can change this datatype.
|
||||
*/
|
||||
|
||||
typedef unsigned int JDIMENSION;
|
||||
|
||||
#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */
|
||||
|
||||
|
||||
/* These macros are used in all function definitions and extern declarations.
|
||||
* You could modify them if you need to change function linkage conventions;
|
||||
* in particular, you'll need to do that to make the library a Windows DLL.
|
||||
* Another application is to make all functions global for use with debuggers
|
||||
* or code profilers that require it.
|
||||
*/
|
||||
|
||||
/* a function called through method pointers: */
|
||||
#define METHODDEF(type) static type
|
||||
/* a function used only in its module: */
|
||||
#define LOCAL(type) static type
|
||||
/* a function referenced thru EXTERNs: */
|
||||
#define GLOBAL(type) type
|
||||
/* a reference to a GLOBAL function: */
|
||||
#define EXTERN(type) extern type
|
||||
|
||||
|
||||
/* This macro is used to declare a "method", that is, a function pointer.
|
||||
* We want to supply prototype parameters if the compiler can cope.
|
||||
* Note that the arglist parameter must be parenthesized!
|
||||
* Again, you can customize this if you need special linkage keywords.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_PROTOTYPES
|
||||
#define JMETHOD(type,methodname,arglist) type (*methodname) arglist
|
||||
#else
|
||||
#define JMETHOD(type,methodname,arglist) type (*methodname) ()
|
||||
#endif
|
||||
|
||||
|
||||
/* Here is the pseudo-keyword for declaring pointers that must be "far"
|
||||
* on 80x86 machines. Most of the specialized coding for 80x86 is handled
|
||||
* by just saying "FAR *" where such a pointer is needed. In a few places
|
||||
* explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol.
|
||||
*/
|
||||
|
||||
#ifdef NEED_FAR_POINTERS
|
||||
#define FAR far
|
||||
#else
|
||||
#define FAR
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* On a few systems, type boolean and/or its values FALSE, TRUE may appear
|
||||
* in standard header files. Or you may have conflicts with application-
|
||||
* specific header files that you want to include together with these files.
|
||||
* Defining HAVE_BOOLEAN before including jpeglib.h should make it work.
|
||||
*/
|
||||
|
||||
#ifndef HAVE_BOOLEAN
|
||||
typedef int boolean;
|
||||
#endif
|
||||
#ifndef FALSE /* in case these macros already exist */
|
||||
#define FALSE 0 /* values of boolean */
|
||||
#endif
|
||||
#ifndef TRUE
|
||||
#define TRUE 1
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* The remaining options affect code selection within the JPEG library,
|
||||
* but they don't need to be visible to most applications using the library.
|
||||
* To minimize application namespace pollution, the symbols won't be
|
||||
* defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined.
|
||||
*/
|
||||
|
||||
#ifdef JPEG_INTERNALS
|
||||
#define JPEG_INTERNAL_OPTIONS
|
||||
#endif
|
||||
|
||||
#ifdef JPEG_INTERNAL_OPTIONS
|
||||
|
||||
|
||||
/*
|
||||
* These defines indicate whether to include various optional functions.
|
||||
* Undefining some of these symbols will produce a smaller but less capable
|
||||
* library. Note that you can leave certain source files out of the
|
||||
* compilation/linking process if you've #undef'd the corresponding symbols.
|
||||
* (You may HAVE to do that if your compiler doesn't like null source files.)
|
||||
*/
|
||||
|
||||
/* Arithmetic coding is unsupported for legal reasons. Complaints to IBM. */
|
||||
|
||||
/* Capability options common to encoder and decoder: */
|
||||
|
||||
#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */
|
||||
#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */
|
||||
//#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */
|
||||
|
||||
/* Encoder capability options: */
|
||||
|
||||
#undef C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
|
||||
#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
|
||||
//#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
|
||||
#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */
|
||||
/* Note: if you selected 12-bit data precision, it is dangerous to turn off
|
||||
* ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit
|
||||
* precision, so jchuff.c normally uses entropy optimization to compute
|
||||
* usable tables for higher precision. If you don't want to do optimization,
|
||||
* you'll have to supply different default Huffman tables.
|
||||
* The exact same statements apply for progressive JPEG: the default tables
|
||||
* don't work for progressive mode. (This may get fixed, however.)
|
||||
*/
|
||||
#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */
|
||||
|
||||
/* Decoder capability options: */
|
||||
|
||||
#undef D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
|
||||
#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
|
||||
#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
|
||||
#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */
|
||||
#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */
|
||||
#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */
|
||||
#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */
|
||||
#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */
|
||||
#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */
|
||||
#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */
|
||||
|
||||
/* more capability options later, no doubt */
|
||||
|
||||
|
||||
/*
|
||||
* Ordering of RGB data in scanlines passed to or from the application.
|
||||
* If your application wants to deal with data in the order B,G,R, just
|
||||
* change these macros. You can also deal with formats such as R,G,B,X
|
||||
* (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing
|
||||
* the offsets will also change the order in which colormap data is organized.
|
||||
* RESTRICTIONS:
|
||||
* 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
|
||||
* 2. These macros only affect RGB<=>YCbCr color conversion, so they are not
|
||||
* useful if you are using JPEG color spaces other than YCbCr or grayscale.
|
||||
* 3. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
|
||||
* is not 3 (they don't understand about dummy color components!). So you
|
||||
* can't use color quantization if you change that value.
|
||||
*/
|
||||
|
||||
#define RGB_RED 0 /* Offset of Red in an RGB scanline element */
|
||||
#define RGB_GREEN 1 /* Offset of Green */
|
||||
#define RGB_BLUE 2 /* Offset of Blue */
|
||||
#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */
|
||||
|
||||
|
||||
/* Definitions for speed-related optimizations. */
|
||||
|
||||
|
||||
/* If your compiler supports inline functions, define INLINE
|
||||
* as the inline keyword; otherwise define it as empty.
|
||||
*/
|
||||
|
||||
#ifndef INLINE
|
||||
#ifdef __GNUC__ /* for instance, GNU C knows about inline */
|
||||
#define INLINE __inline__
|
||||
#endif
|
||||
#ifndef INLINE
|
||||
#define INLINE /* default is to define it as empty */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying
|
||||
* two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER
|
||||
* as short on such a machine. MULTIPLIER must be at least 16 bits wide.
|
||||
*/
|
||||
|
||||
#ifndef MULTIPLIER
|
||||
#define MULTIPLIER int /* type for fastest integer multiply */
|
||||
#endif
|
||||
|
||||
|
||||
/* FAST_FLOAT should be either float or double, whichever is done faster
|
||||
* by your compiler. (Note that this type is only used in the floating point
|
||||
* DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.)
|
||||
* Typically, float is faster in ANSI C compilers, while double is faster in
|
||||
* pre-ANSI compilers (because they insist on converting to double anyway).
|
||||
* The code below therefore chooses float if we have ANSI-style prototypes.
|
||||
*/
|
||||
|
||||
#ifndef FAST_FLOAT
|
||||
#ifdef HAVE_PROTOTYPES
|
||||
#define FAST_FLOAT float
|
||||
#else
|
||||
#define FAST_FLOAT double
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#endif /* JPEG_INTERNAL_OPTIONS */
|
||||
/*
|
||||
* jmorecfg.h
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* Modified 1997-2009 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file contains additional configuration options that customize the
|
||||
* JPEG software for special applications or support machine-dependent
|
||||
* optimizations. Most users will not need to touch this file.
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
* Define BITS_IN_JSAMPLE as either
|
||||
* 8 for 8-bit sample values (the usual setting)
|
||||
* 12 for 12-bit sample values
|
||||
* Only 8 and 12 are legal data precisions for lossy JPEG according to the
|
||||
* JPEG standard, and the IJG code does not support anything else!
|
||||
* We do not support run-time selection of data precision, sorry.
|
||||
*/
|
||||
|
||||
#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */
|
||||
|
||||
|
||||
/*
|
||||
* Maximum number of components (color channels) allowed in JPEG image.
|
||||
* To meet the letter of the JPEG spec, set this to 255. However, darn
|
||||
* few applications need more than 4 channels (maybe 5 for CMYK + alpha
|
||||
* mask). We recommend 10 as a reasonable compromise; use 4 if you are
|
||||
* really short on memory. (Each allowed component costs a hundred or so
|
||||
* bytes of storage, whether actually used in an image or not.)
|
||||
*/
|
||||
|
||||
#define MAX_COMPONENTS 10 /* maximum number of image components */
|
||||
|
||||
|
||||
/*
|
||||
* Basic data types.
|
||||
* You may need to change these if you have a machine with unusual data
|
||||
* type sizes; for example, "char" not 8 bits, "short" not 16 bits,
|
||||
* or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits,
|
||||
* but it had better be at least 16.
|
||||
*/
|
||||
|
||||
/* Representation of a single sample (pixel element value).
|
||||
* We frequently allocate large arrays of these, so it's important to keep
|
||||
* them small. But if you have memory to burn and access to char or short
|
||||
* arrays is very slow on your hardware, you might want to change these.
|
||||
*/
|
||||
|
||||
#if BITS_IN_JSAMPLE == 8
|
||||
/* JSAMPLE should be the smallest type that will hold the values 0..255.
|
||||
* You can use a signed char by having GETJSAMPLE mask it with 0xFF.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_UNSIGNED_CHAR
|
||||
|
||||
typedef unsigned char JSAMPLE;
|
||||
#define GETJSAMPLE(value) ((int) (value))
|
||||
|
||||
#else /* not HAVE_UNSIGNED_CHAR */
|
||||
|
||||
typedef char JSAMPLE;
|
||||
#ifdef CHAR_IS_UNSIGNED
|
||||
#define GETJSAMPLE(value) ((int) (value))
|
||||
#else
|
||||
#define GETJSAMPLE(value) ((int) (value) & 0xFF)
|
||||
#endif /* CHAR_IS_UNSIGNED */
|
||||
|
||||
#endif /* HAVE_UNSIGNED_CHAR */
|
||||
|
||||
#define MAXJSAMPLE 255
|
||||
#define CENTERJSAMPLE 128
|
||||
|
||||
#endif /* BITS_IN_JSAMPLE == 8 */
|
||||
|
||||
|
||||
#if BITS_IN_JSAMPLE == 12
|
||||
/* JSAMPLE should be the smallest type that will hold the values 0..4095.
|
||||
* On nearly all machines "short" will do nicely.
|
||||
*/
|
||||
|
||||
typedef short JSAMPLE;
|
||||
#define GETJSAMPLE(value) ((int) (value))
|
||||
|
||||
#define MAXJSAMPLE 4095
|
||||
#define CENTERJSAMPLE 2048
|
||||
|
||||
#endif /* BITS_IN_JSAMPLE == 12 */
|
||||
|
||||
|
||||
/* Representation of a DCT frequency coefficient.
|
||||
* This should be a signed value of at least 16 bits; "short" is usually OK.
|
||||
* Again, we allocate large arrays of these, but you can change to int
|
||||
* if you have memory to burn and "short" is really slow.
|
||||
*/
|
||||
|
||||
typedef short JCOEF;
|
||||
|
||||
|
||||
/* Compressed datastreams are represented as arrays of JOCTET.
|
||||
* These must be EXACTLY 8 bits wide, at least once they are written to
|
||||
* external storage. Note that when using the stdio data source/destination
|
||||
* managers, this is also the data type passed to fread/fwrite.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_UNSIGNED_CHAR
|
||||
|
||||
typedef unsigned char JOCTET;
|
||||
#define GETJOCTET(value) (value)
|
||||
|
||||
#else /* not HAVE_UNSIGNED_CHAR */
|
||||
|
||||
typedef char JOCTET;
|
||||
#ifdef CHAR_IS_UNSIGNED
|
||||
#define GETJOCTET(value) (value)
|
||||
#else
|
||||
#define GETJOCTET(value) ((value) & 0xFF)
|
||||
#endif /* CHAR_IS_UNSIGNED */
|
||||
|
||||
#endif /* HAVE_UNSIGNED_CHAR */
|
||||
|
||||
|
||||
/* These typedefs are used for various table entries and so forth.
|
||||
* They must be at least as wide as specified; but making them too big
|
||||
* won't cost a huge amount of memory, so we don't provide special
|
||||
* extraction code like we did for JSAMPLE. (In other words, these
|
||||
* typedefs live at a different point on the speed/space tradeoff curve.)
|
||||
*/
|
||||
|
||||
/* UINT8 must hold at least the values 0..255. */
|
||||
|
||||
#ifdef HAVE_UNSIGNED_CHAR
|
||||
typedef unsigned char UINT8;
|
||||
#else /* not HAVE_UNSIGNED_CHAR */
|
||||
#ifdef CHAR_IS_UNSIGNED
|
||||
typedef char UINT8;
|
||||
#else /* not CHAR_IS_UNSIGNED */
|
||||
typedef short UINT8;
|
||||
#endif /* CHAR_IS_UNSIGNED */
|
||||
#endif /* HAVE_UNSIGNED_CHAR */
|
||||
|
||||
/* UINT16 must hold at least the values 0..65535. */
|
||||
|
||||
#ifdef HAVE_UNSIGNED_SHORT
|
||||
typedef unsigned short UINT16;
|
||||
#else /* not HAVE_UNSIGNED_SHORT */
|
||||
typedef unsigned int UINT16;
|
||||
#endif /* HAVE_UNSIGNED_SHORT */
|
||||
|
||||
/* INT16 must hold at least the values -32768..32767. */
|
||||
|
||||
#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */
|
||||
typedef short INT16;
|
||||
#endif
|
||||
|
||||
/* INT32 must hold at least signed 32-bit values. */
|
||||
|
||||
#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */
|
||||
#ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */
|
||||
#ifndef _BASETSD_H /* MinGW is slightly different */
|
||||
#ifndef QGLOBAL_H /* Qt defines it in qglobal.h */
|
||||
typedef long INT32;
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* Datatype used for image dimensions. The JPEG standard only supports
|
||||
* images up to 64K*64K due to 16-bit fields in SOF markers. Therefore
|
||||
* "unsigned int" is sufficient on all machines. However, if you need to
|
||||
* handle larger images and you don't mind deviating from the spec, you
|
||||
* can change this datatype.
|
||||
*/
|
||||
|
||||
typedef unsigned int JDIMENSION;
|
||||
|
||||
#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */
|
||||
|
||||
|
||||
/* These macros are used in all function definitions and extern declarations.
|
||||
* You could modify them if you need to change function linkage conventions;
|
||||
* in particular, you'll need to do that to make the library a Windows DLL.
|
||||
* Another application is to make all functions global for use with debuggers
|
||||
* or code profilers that require it.
|
||||
*/
|
||||
|
||||
/* a function called through method pointers: */
|
||||
#define METHODDEF(type) static type
|
||||
/* a function used only in its module: */
|
||||
#define LOCAL(type) static type
|
||||
/* a function referenced thru EXTERNs: */
|
||||
#define GLOBAL(type) type
|
||||
/* a reference to a GLOBAL function: */
|
||||
#define EXTERN(type) extern type
|
||||
|
||||
|
||||
/* This macro is used to declare a "method", that is, a function pointer.
|
||||
* We want to supply prototype parameters if the compiler can cope.
|
||||
* Note that the arglist parameter must be parenthesized!
|
||||
* Again, you can customize this if you need special linkage keywords.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_PROTOTYPES
|
||||
#define JMETHOD(type,methodname,arglist) type (*methodname) arglist
|
||||
#else
|
||||
#define JMETHOD(type,methodname,arglist) type (*methodname) ()
|
||||
#endif
|
||||
|
||||
|
||||
/* Here is the pseudo-keyword for declaring pointers that must be "far"
|
||||
* on 80x86 machines. Most of the specialized coding for 80x86 is handled
|
||||
* by just saying "FAR *" where such a pointer is needed. In a few places
|
||||
* explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol.
|
||||
*/
|
||||
|
||||
#ifndef FAR
|
||||
#ifdef NEED_FAR_POINTERS
|
||||
#define FAR far
|
||||
#else
|
||||
#define FAR
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* On a few systems, type boolean and/or its values FALSE, TRUE may appear
|
||||
* in standard header files. Or you may have conflicts with application-
|
||||
* specific header files that you want to include together with these files.
|
||||
* Defining HAVE_BOOLEAN before including jpeglib.h should make it work.
|
||||
*/
|
||||
|
||||
#ifndef HAVE_BOOLEAN
|
||||
typedef int boolean;
|
||||
#endif
|
||||
#ifndef FALSE /* in case these macros already exist */
|
||||
#define FALSE 0 /* values of boolean */
|
||||
#endif
|
||||
#ifndef TRUE
|
||||
#define TRUE 1
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* The remaining options affect code selection within the JPEG library,
|
||||
* but they don't need to be visible to most applications using the library.
|
||||
* To minimize application namespace pollution, the symbols won't be
|
||||
* defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined.
|
||||
*/
|
||||
|
||||
#ifdef JPEG_INTERNALS
|
||||
#define JPEG_INTERNAL_OPTIONS
|
||||
#endif
|
||||
|
||||
#ifdef JPEG_INTERNAL_OPTIONS
|
||||
|
||||
|
||||
/*
|
||||
* These defines indicate whether to include various optional functions.
|
||||
* Undefining some of these symbols will produce a smaller but less capable
|
||||
* library. Note that you can leave certain source files out of the
|
||||
* compilation/linking process if you've #undef'd the corresponding symbols.
|
||||
* (You may HAVE to do that if your compiler doesn't like null source files.)
|
||||
*/
|
||||
|
||||
/* Capability options common to encoder and decoder: */
|
||||
|
||||
#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */
|
||||
#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */
|
||||
#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */
|
||||
|
||||
/* Encoder capability options: */
|
||||
|
||||
#define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
|
||||
#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
|
||||
#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
|
||||
#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/
|
||||
#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */
|
||||
/* Note: if you selected 12-bit data precision, it is dangerous to turn off
|
||||
* ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit
|
||||
* precision, so jchuff.c normally uses entropy optimization to compute
|
||||
* usable tables for higher precision. If you don't want to do optimization,
|
||||
* you'll have to supply different default Huffman tables.
|
||||
* The exact same statements apply for progressive JPEG: the default tables
|
||||
* don't work for progressive mode. (This may get fixed, however.)
|
||||
*/
|
||||
#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */
|
||||
|
||||
/* Decoder capability options: */
|
||||
|
||||
#define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */
|
||||
#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
|
||||
#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/
|
||||
#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */
|
||||
#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */
|
||||
#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */
|
||||
#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */
|
||||
#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */
|
||||
#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */
|
||||
#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */
|
||||
|
||||
/* more capability options later, no doubt */
|
||||
|
||||
|
||||
/*
|
||||
* Ordering of RGB data in scanlines passed to or from the application.
|
||||
* If your application wants to deal with data in the order B,G,R, just
|
||||
* change these macros. You can also deal with formats such as R,G,B,X
|
||||
* (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing
|
||||
* the offsets will also change the order in which colormap data is organized.
|
||||
* RESTRICTIONS:
|
||||
* 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
|
||||
* 2. These macros only affect RGB<=>YCbCr color conversion, so they are not
|
||||
* useful if you are using JPEG color spaces other than YCbCr or grayscale.
|
||||
* 3. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
|
||||
* is not 3 (they don't understand about dummy color components!). So you
|
||||
* can't use color quantization if you change that value.
|
||||
*/
|
||||
|
||||
#define RGB_RED 0 /* Offset of Red in an RGB scanline element */
|
||||
#define RGB_GREEN 1 /* Offset of Green */
|
||||
#define RGB_BLUE 2 /* Offset of Blue */
|
||||
#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */
|
||||
|
||||
|
||||
/* Definitions for speed-related optimizations. */
|
||||
|
||||
|
||||
/* If your compiler supports inline functions, define INLINE
|
||||
* as the inline keyword; otherwise define it as empty.
|
||||
*/
|
||||
|
||||
#ifndef INLINE
|
||||
#ifdef __GNUC__ /* for instance, GNU C knows about inline */
|
||||
#define INLINE __inline__
|
||||
#endif
|
||||
#ifndef INLINE
|
||||
#define INLINE /* default is to define it as empty */
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying
|
||||
* two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER
|
||||
* as short on such a machine. MULTIPLIER must be at least 16 bits wide.
|
||||
*/
|
||||
|
||||
#ifndef MULTIPLIER
|
||||
#define MULTIPLIER int /* type for fastest integer multiply */
|
||||
#endif
|
||||
|
||||
|
||||
/* FAST_FLOAT should be either float or double, whichever is done faster
|
||||
* by your compiler. (Note that this type is only used in the floating point
|
||||
* DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.)
|
||||
* Typically, float is faster in ANSI C compilers, while double is faster in
|
||||
* pre-ANSI compilers (because they insist on converting to double anyway).
|
||||
* The code below therefore chooses float if we have ANSI-style prototypes.
|
||||
*/
|
||||
|
||||
#ifndef FAST_FLOAT
|
||||
#ifdef HAVE_PROTOTYPES
|
||||
#define FAST_FLOAT float
|
||||
#else
|
||||
#define FAST_FLOAT double
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#endif /* JPEG_INTERNAL_OPTIONS */
|
||||
|
|
|
@ -1,392 +1,407 @@
|
|||
/*
|
||||
* jpegint.h
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file provides common declarations for the various JPEG modules.
|
||||
* These declarations are considered internal to the JPEG library; most
|
||||
* applications using the library shouldn't need to include this file.
|
||||
*/
|
||||
|
||||
|
||||
/* Declarations for both compression & decompression */
|
||||
|
||||
typedef enum { /* Operating modes for buffer controllers */
|
||||
JBUF_PASS_THRU, /* Plain stripwise operation */
|
||||
/* Remaining modes require a full-image buffer to have been created */
|
||||
JBUF_SAVE_SOURCE, /* Run source subobject only, save output */
|
||||
JBUF_CRANK_DEST, /* Run dest subobject only, using saved data */
|
||||
JBUF_SAVE_AND_PASS /* Run both subobjects, save output */
|
||||
} J_BUF_MODE;
|
||||
|
||||
/* Values of global_state field (jdapi.c has some dependencies on ordering!) */
|
||||
#define CSTATE_START 100 /* after create_compress */
|
||||
#define CSTATE_SCANNING 101 /* start_compress done, write_scanlines OK */
|
||||
#define CSTATE_RAW_OK 102 /* start_compress done, write_raw_data OK */
|
||||
#define CSTATE_WRCOEFS 103 /* jpeg_write_coefficients done */
|
||||
#define DSTATE_START 200 /* after create_decompress */
|
||||
#define DSTATE_INHEADER 201 /* reading header markers, no SOS yet */
|
||||
#define DSTATE_READY 202 /* found SOS, ready for start_decompress */
|
||||
#define DSTATE_PRELOAD 203 /* reading multiscan file in start_decompress*/
|
||||
#define DSTATE_PRESCAN 204 /* performing dummy pass for 2-pass quant */
|
||||
#define DSTATE_SCANNING 205 /* start_decompress done, read_scanlines OK */
|
||||
#define DSTATE_RAW_OK 206 /* start_decompress done, read_raw_data OK */
|
||||
#define DSTATE_BUFIMAGE 207 /* expecting jpeg_start_output */
|
||||
#define DSTATE_BUFPOST 208 /* looking for SOS/EOI in jpeg_finish_output */
|
||||
#define DSTATE_RDCOEFS 209 /* reading file in jpeg_read_coefficients */
|
||||
#define DSTATE_STOPPING 210 /* looking for EOI in jpeg_finish_decompress */
|
||||
|
||||
|
||||
/* Declarations for compression modules */
|
||||
|
||||
/* Master control module */
|
||||
struct jpeg_comp_master {
|
||||
JMETHOD(void, prepare_for_pass, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, pass_startup, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, finish_pass, (j_compress_ptr cinfo));
|
||||
|
||||
/* State variables made visible to other modules */
|
||||
boolean call_pass_startup; /* True if pass_startup must be called */
|
||||
boolean is_last_pass; /* True during last pass */
|
||||
};
|
||||
|
||||
/* Main buffer control (downsampled-data buffer) */
|
||||
struct jpeg_c_main_controller {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(void, process_data, (j_compress_ptr cinfo,
|
||||
JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
|
||||
JDIMENSION in_rows_avail));
|
||||
};
|
||||
|
||||
/* Compression preprocessing (downsampling input buffer control) */
|
||||
struct jpeg_c_prep_controller {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(void, pre_process_data, (j_compress_ptr cinfo,
|
||||
JSAMPARRAY input_buf,
|
||||
JDIMENSION *in_row_ctr,
|
||||
JDIMENSION in_rows_avail,
|
||||
JSAMPIMAGE output_buf,
|
||||
JDIMENSION *out_row_group_ctr,
|
||||
JDIMENSION out_row_groups_avail));
|
||||
};
|
||||
|
||||
/* Coefficient buffer control */
|
||||
struct jpeg_c_coef_controller {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(boolean, compress_data, (j_compress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf));
|
||||
};
|
||||
|
||||
/* Colorspace conversion */
|
||||
struct jpeg_color_converter {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, color_convert, (j_compress_ptr cinfo,
|
||||
JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
|
||||
JDIMENSION output_row, int num_rows));
|
||||
};
|
||||
|
||||
/* Downsampling */
|
||||
struct jpeg_downsampler {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, downsample, (j_compress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf, JDIMENSION in_row_index,
|
||||
JSAMPIMAGE output_buf,
|
||||
JDIMENSION out_row_group_index));
|
||||
|
||||
boolean need_context_rows; /* TRUE if need rows above & below */
|
||||
};
|
||||
|
||||
/* Forward DCT (also controls coefficient quantization) */
|
||||
struct jpeg_forward_dct {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo));
|
||||
/* perhaps this should be an array??? */
|
||||
JMETHOD(void, forward_DCT, (j_compress_ptr cinfo,
|
||||
jpeg_component_info * compptr,
|
||||
JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
|
||||
JDIMENSION start_row, JDIMENSION start_col,
|
||||
JDIMENSION num_blocks));
|
||||
};
|
||||
|
||||
/* Entropy encoding */
|
||||
struct jpeg_entropy_encoder {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo, boolean gather_statistics));
|
||||
JMETHOD(boolean, encode_mcu, (j_compress_ptr cinfo, JBLOCKROW *MCU_data));
|
||||
JMETHOD(void, finish_pass, (j_compress_ptr cinfo));
|
||||
};
|
||||
|
||||
/* Marker writing */
|
||||
struct jpeg_marker_writer {
|
||||
JMETHOD(void, write_file_header, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, write_frame_header, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, write_scan_header, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, write_file_trailer, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, write_tables_only, (j_compress_ptr cinfo));
|
||||
/* These routines are exported to allow insertion of extra markers */
|
||||
/* Probably only COM and APPn markers should be written this way */
|
||||
JMETHOD(void, write_marker_header, (j_compress_ptr cinfo, int marker,
|
||||
unsigned int datalen));
|
||||
JMETHOD(void, write_marker_byte, (j_compress_ptr cinfo, int val));
|
||||
};
|
||||
|
||||
|
||||
/* Declarations for decompression modules */
|
||||
|
||||
/* Master control module */
|
||||
struct jpeg_decomp_master {
|
||||
JMETHOD(void, prepare_for_output_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, finish_output_pass, (j_decompress_ptr cinfo));
|
||||
|
||||
/* State variables made visible to other modules */
|
||||
boolean is_dummy_pass; /* True during 1st pass for 2-pass quant */
|
||||
};
|
||||
|
||||
/* Input control module */
|
||||
struct jpeg_input_controller {
|
||||
JMETHOD(int, consume_input, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, reset_input_controller, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, finish_input_pass, (j_decompress_ptr cinfo));
|
||||
|
||||
/* State variables made visible to other modules */
|
||||
boolean has_multiple_scans; /* True if file has multiple scans */
|
||||
boolean eoi_reached; /* True when EOI has been consumed */
|
||||
};
|
||||
|
||||
/* Main buffer control (downsampled-data buffer) */
|
||||
struct jpeg_d_main_controller {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(void, process_data, (j_decompress_ptr cinfo,
|
||||
JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
|
||||
JDIMENSION out_rows_avail));
|
||||
};
|
||||
|
||||
/* Coefficient buffer control */
|
||||
struct jpeg_d_coef_controller {
|
||||
JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(int, consume_data, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, start_output_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(int, decompress_data, (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE output_buf));
|
||||
/* Pointer to array of coefficient virtual arrays, or NULL if none */
|
||||
jvirt_barray_ptr *coef_arrays;
|
||||
};
|
||||
|
||||
/* Decompression postprocessing (color quantization buffer control) */
|
||||
struct jpeg_d_post_controller {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(void, post_process_data, (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf,
|
||||
JDIMENSION *in_row_group_ctr,
|
||||
JDIMENSION in_row_groups_avail,
|
||||
JSAMPARRAY output_buf,
|
||||
JDIMENSION *out_row_ctr,
|
||||
JDIMENSION out_rows_avail));
|
||||
};
|
||||
|
||||
/* Marker reading & parsing */
|
||||
struct jpeg_marker_reader {
|
||||
JMETHOD(void, reset_marker_reader, (j_decompress_ptr cinfo));
|
||||
/* Read markers until SOS or EOI.
|
||||
* Returns same codes as are defined for jpeg_consume_input:
|
||||
* JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI.
|
||||
*/
|
||||
JMETHOD(int, read_markers, (j_decompress_ptr cinfo));
|
||||
/* Read a restart marker --- exported for use by entropy decoder only */
|
||||
jpeg_marker_parser_method read_restart_marker;
|
||||
|
||||
/* State of marker reader --- nominally internal, but applications
|
||||
* supplying COM or APPn handlers might like to know the state.
|
||||
*/
|
||||
boolean saw_SOI; /* found SOI? */
|
||||
boolean saw_SOF; /* found SOF? */
|
||||
int next_restart_num; /* next restart number expected (0-7) */
|
||||
unsigned int discarded_bytes; /* # of bytes skipped looking for a marker */
|
||||
};
|
||||
|
||||
/* Entropy decoding */
|
||||
struct jpeg_entropy_decoder {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo,
|
||||
JBLOCKROW *MCU_data));
|
||||
|
||||
/* This is here to share code between baseline and progressive decoders; */
|
||||
/* other modules probably should not use it */
|
||||
boolean insufficient_data; /* set TRUE after emitting warning */
|
||||
};
|
||||
|
||||
/* Inverse DCT (also performs dequantization) */
|
||||
typedef JMETHOD(void, inverse_DCT_method_ptr,
|
||||
(j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block,
|
||||
JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
|
||||
struct jpeg_inverse_dct {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
|
||||
/* It is useful to allow each component to have a separate IDCT method. */
|
||||
inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS];
|
||||
};
|
||||
|
||||
/* Upsampling (note that upsampler must also call color converter) */
|
||||
struct jpeg_upsampler {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, upsample, (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf,
|
||||
JDIMENSION *in_row_group_ctr,
|
||||
JDIMENSION in_row_groups_avail,
|
||||
JSAMPARRAY output_buf,
|
||||
JDIMENSION *out_row_ctr,
|
||||
JDIMENSION out_rows_avail));
|
||||
|
||||
boolean need_context_rows; /* TRUE if need rows above & below */
|
||||
};
|
||||
|
||||
/* Colorspace conversion */
|
||||
struct jpeg_color_deconverter {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, color_convert, (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf, JDIMENSION input_row,
|
||||
JSAMPARRAY output_buf, int num_rows));
|
||||
};
|
||||
|
||||
/* Color quantization or color precision reduction */
|
||||
struct jpeg_color_quantizer {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo, boolean is_pre_scan));
|
||||
JMETHOD(void, color_quantize, (j_decompress_ptr cinfo,
|
||||
JSAMPARRAY input_buf, JSAMPARRAY output_buf,
|
||||
int num_rows));
|
||||
JMETHOD(void, finish_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, new_color_map, (j_decompress_ptr cinfo));
|
||||
};
|
||||
|
||||
|
||||
/* Miscellaneous useful macros */
|
||||
|
||||
#undef MAX
|
||||
#define MAX(a,b) ((a) > (b) ? (a) : (b))
|
||||
#undef MIN
|
||||
#define MIN(a,b) ((a) < (b) ? (a) : (b))
|
||||
|
||||
|
||||
/* We assume that right shift corresponds to signed division by 2 with
|
||||
* rounding towards minus infinity. This is correct for typical "arithmetic
|
||||
* shift" instructions that shift in copies of the sign bit. But some
|
||||
* C compilers implement >> with an unsigned shift. For these machines you
|
||||
* must define RIGHT_SHIFT_IS_UNSIGNED.
|
||||
* RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity.
|
||||
* It is only applied with constant shift counts. SHIFT_TEMPS must be
|
||||
* included in the variables of any routine using RIGHT_SHIFT.
|
||||
*/
|
||||
|
||||
#ifdef RIGHT_SHIFT_IS_UNSIGNED
|
||||
#define SHIFT_TEMPS INT32 shift_temp;
|
||||
#define RIGHT_SHIFT(x,shft) \
|
||||
((shift_temp = (x)) < 0 ? \
|
||||
(shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \
|
||||
(shift_temp >> (shft)))
|
||||
#else
|
||||
#define SHIFT_TEMPS
|
||||
#define RIGHT_SHIFT(x,shft) ((x) >> (shft))
|
||||
#endif
|
||||
|
||||
|
||||
/* Short forms of external names for systems with brain-damaged linkers. */
|
||||
|
||||
#ifdef NEED_SHORT_EXTERNAL_NAMES
|
||||
#define jinit_compress_master jICompress
|
||||
#define jinit_c_master_control jICMaster
|
||||
#define jinit_c_main_controller jICMainC
|
||||
#define jinit_c_prep_controller jICPrepC
|
||||
#define jinit_c_coef_controller jICCoefC
|
||||
#define jinit_color_converter jICColor
|
||||
#define jinit_downsampler jIDownsampler
|
||||
#define jinit_forward_dct jIFDCT
|
||||
#define jinit_huff_encoder jIHEncoder
|
||||
#define jinit_phuff_encoder jIPHEncoder
|
||||
#define jinit_marker_writer jIMWriter
|
||||
#define jinit_master_decompress jIDMaster
|
||||
#define jinit_d_main_controller jIDMainC
|
||||
#define jinit_d_coef_controller jIDCoefC
|
||||
#define jinit_d_post_controller jIDPostC
|
||||
#define jinit_input_controller jIInCtlr
|
||||
#define jinit_marker_reader jIMReader
|
||||
#define jinit_huff_decoder jIHDecoder
|
||||
#define jinit_phuff_decoder jIPHDecoder
|
||||
#define jinit_inverse_dct jIIDCT
|
||||
#define jinit_upsampler jIUpsampler
|
||||
#define jinit_color_deconverter jIDColor
|
||||
#define jinit_1pass_quantizer jI1Quant
|
||||
#define jinit_2pass_quantizer jI2Quant
|
||||
#define jinit_merged_upsampler jIMUpsampler
|
||||
#define jinit_memory_mgr jIMemMgr
|
||||
#define jdiv_round_up jDivRound
|
||||
#define jround_up jRound
|
||||
#define jcopy_sample_rows jCopySamples
|
||||
#define jcopy_block_row jCopyBlocks
|
||||
#define jzero_far jZeroFar
|
||||
#define jpeg_zigzag_order jZIGTable
|
||||
#define jpeg_natural_order jZAGTable
|
||||
#endif /* NEED_SHORT_EXTERNAL_NAMES */
|
||||
|
||||
|
||||
/* Compression module initialization routines */
|
||||
EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo,
|
||||
boolean transcode_only));
|
||||
EXTERN(void) jinit_c_main_controller JPP((j_compress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_c_prep_controller JPP((j_compress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_c_coef_controller JPP((j_compress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_color_converter JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_downsampler JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_forward_dct JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_huff_encoder JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_phuff_encoder JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_marker_writer JPP((j_compress_ptr cinfo));
|
||||
/* Decompression module initialization routines */
|
||||
EXTERN(void) jinit_master_decompress JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_d_main_controller JPP((j_decompress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_d_coef_controller JPP((j_decompress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_d_post_controller JPP((j_decompress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_input_controller JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_marker_reader JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_huff_decoder JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_phuff_decoder JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_inverse_dct JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_upsampler JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_color_deconverter JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_1pass_quantizer JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_2pass_quantizer JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_merged_upsampler JPP((j_decompress_ptr cinfo));
|
||||
/* Memory manager initialization */
|
||||
EXTERN(void) jinit_memory_mgr JPP((j_common_ptr cinfo));
|
||||
|
||||
/* Utility routines in jutils.c */
|
||||
EXTERN(long) jdiv_round_up JPP((long a, long b));
|
||||
EXTERN(long) jround_up JPP((long a, long b));
|
||||
EXTERN(void) jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row,
|
||||
JSAMPARRAY output_array, int dest_row,
|
||||
int num_rows, JDIMENSION num_cols));
|
||||
EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row,
|
||||
JDIMENSION num_blocks));
|
||||
EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
|
||||
/* Constant tables in jutils.c */
|
||||
#if 0 /* This table is not actually needed in v6a */
|
||||
extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */
|
||||
#endif
|
||||
extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */
|
||||
|
||||
/* Suppress undefined-structure complaints if necessary. */
|
||||
|
||||
#ifdef INCOMPLETE_TYPES_BROKEN
|
||||
#ifndef AM_MEMORY_MANAGER /* only jmemmgr.c defines these */
|
||||
struct jvirt_sarray_control { long dummy; };
|
||||
struct jvirt_barray_control { long dummy; };
|
||||
#endif
|
||||
#endif /* INCOMPLETE_TYPES_BROKEN */
|
||||
/*
|
||||
* jpegint.h
|
||||
*
|
||||
* Copyright (C) 1991-1997, Thomas G. Lane.
|
||||
* Modified 1997-2009 by Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file provides common declarations for the various JPEG modules.
|
||||
* These declarations are considered internal to the JPEG library; most
|
||||
* applications using the library shouldn't need to include this file.
|
||||
*/
|
||||
|
||||
|
||||
/* Declarations for both compression & decompression */
|
||||
|
||||
typedef enum { /* Operating modes for buffer controllers */
|
||||
JBUF_PASS_THRU, /* Plain stripwise operation */
|
||||
/* Remaining modes require a full-image buffer to have been created */
|
||||
JBUF_SAVE_SOURCE, /* Run source subobject only, save output */
|
||||
JBUF_CRANK_DEST, /* Run dest subobject only, using saved data */
|
||||
JBUF_SAVE_AND_PASS /* Run both subobjects, save output */
|
||||
} J_BUF_MODE;
|
||||
|
||||
/* Values of global_state field (jdapi.c has some dependencies on ordering!) */
|
||||
#define CSTATE_START 100 /* after create_compress */
|
||||
#define CSTATE_SCANNING 101 /* start_compress done, write_scanlines OK */
|
||||
#define CSTATE_RAW_OK 102 /* start_compress done, write_raw_data OK */
|
||||
#define CSTATE_WRCOEFS 103 /* jpeg_write_coefficients done */
|
||||
#define DSTATE_START 200 /* after create_decompress */
|
||||
#define DSTATE_INHEADER 201 /* reading header markers, no SOS yet */
|
||||
#define DSTATE_READY 202 /* found SOS, ready for start_decompress */
|
||||
#define DSTATE_PRELOAD 203 /* reading multiscan file in start_decompress*/
|
||||
#define DSTATE_PRESCAN 204 /* performing dummy pass for 2-pass quant */
|
||||
#define DSTATE_SCANNING 205 /* start_decompress done, read_scanlines OK */
|
||||
#define DSTATE_RAW_OK 206 /* start_decompress done, read_raw_data OK */
|
||||
#define DSTATE_BUFIMAGE 207 /* expecting jpeg_start_output */
|
||||
#define DSTATE_BUFPOST 208 /* looking for SOS/EOI in jpeg_finish_output */
|
||||
#define DSTATE_RDCOEFS 209 /* reading file in jpeg_read_coefficients */
|
||||
#define DSTATE_STOPPING 210 /* looking for EOI in jpeg_finish_decompress */
|
||||
|
||||
|
||||
/* Declarations for compression modules */
|
||||
|
||||
/* Master control module */
|
||||
struct jpeg_comp_master {
|
||||
JMETHOD(void, prepare_for_pass, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, pass_startup, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, finish_pass, (j_compress_ptr cinfo));
|
||||
|
||||
/* State variables made visible to other modules */
|
||||
boolean call_pass_startup; /* True if pass_startup must be called */
|
||||
boolean is_last_pass; /* True during last pass */
|
||||
};
|
||||
|
||||
/* Main buffer control (downsampled-data buffer) */
|
||||
struct jpeg_c_main_controller {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(void, process_data, (j_compress_ptr cinfo,
|
||||
JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
|
||||
JDIMENSION in_rows_avail));
|
||||
};
|
||||
|
||||
/* Compression preprocessing (downsampling input buffer control) */
|
||||
struct jpeg_c_prep_controller {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(void, pre_process_data, (j_compress_ptr cinfo,
|
||||
JSAMPARRAY input_buf,
|
||||
JDIMENSION *in_row_ctr,
|
||||
JDIMENSION in_rows_avail,
|
||||
JSAMPIMAGE output_buf,
|
||||
JDIMENSION *out_row_group_ctr,
|
||||
JDIMENSION out_row_groups_avail));
|
||||
};
|
||||
|
||||
/* Coefficient buffer control */
|
||||
struct jpeg_c_coef_controller {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(boolean, compress_data, (j_compress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf));
|
||||
};
|
||||
|
||||
/* Colorspace conversion */
|
||||
struct jpeg_color_converter {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, color_convert, (j_compress_ptr cinfo,
|
||||
JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
|
||||
JDIMENSION output_row, int num_rows));
|
||||
};
|
||||
|
||||
/* Downsampling */
|
||||
struct jpeg_downsampler {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, downsample, (j_compress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf, JDIMENSION in_row_index,
|
||||
JSAMPIMAGE output_buf,
|
||||
JDIMENSION out_row_group_index));
|
||||
|
||||
boolean need_context_rows; /* TRUE if need rows above & below */
|
||||
};
|
||||
|
||||
/* Forward DCT (also controls coefficient quantization) */
|
||||
typedef JMETHOD(void, forward_DCT_ptr,
|
||||
(j_compress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
|
||||
JDIMENSION start_row, JDIMENSION start_col,
|
||||
JDIMENSION num_blocks));
|
||||
|
||||
struct jpeg_forward_dct {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo));
|
||||
/* It is useful to allow each component to have a separate FDCT method. */
|
||||
forward_DCT_ptr forward_DCT[MAX_COMPONENTS];
|
||||
};
|
||||
|
||||
/* Entropy encoding */
|
||||
struct jpeg_entropy_encoder {
|
||||
JMETHOD(void, start_pass, (j_compress_ptr cinfo, boolean gather_statistics));
|
||||
JMETHOD(boolean, encode_mcu, (j_compress_ptr cinfo, JBLOCKROW *MCU_data));
|
||||
JMETHOD(void, finish_pass, (j_compress_ptr cinfo));
|
||||
};
|
||||
|
||||
/* Marker writing */
|
||||
struct jpeg_marker_writer {
|
||||
JMETHOD(void, write_file_header, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, write_frame_header, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, write_scan_header, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, write_file_trailer, (j_compress_ptr cinfo));
|
||||
JMETHOD(void, write_tables_only, (j_compress_ptr cinfo));
|
||||
/* These routines are exported to allow insertion of extra markers */
|
||||
/* Probably only COM and APPn markers should be written this way */
|
||||
JMETHOD(void, write_marker_header, (j_compress_ptr cinfo, int marker,
|
||||
unsigned int datalen));
|
||||
JMETHOD(void, write_marker_byte, (j_compress_ptr cinfo, int val));
|
||||
};
|
||||
|
||||
|
||||
/* Declarations for decompression modules */
|
||||
|
||||
/* Master control module */
|
||||
struct jpeg_decomp_master {
|
||||
JMETHOD(void, prepare_for_output_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, finish_output_pass, (j_decompress_ptr cinfo));
|
||||
|
||||
/* State variables made visible to other modules */
|
||||
boolean is_dummy_pass; /* True during 1st pass for 2-pass quant */
|
||||
};
|
||||
|
||||
/* Input control module */
|
||||
struct jpeg_input_controller {
|
||||
JMETHOD(int, consume_input, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, reset_input_controller, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, finish_input_pass, (j_decompress_ptr cinfo));
|
||||
|
||||
/* State variables made visible to other modules */
|
||||
boolean has_multiple_scans; /* True if file has multiple scans */
|
||||
boolean eoi_reached; /* True when EOI has been consumed */
|
||||
};
|
||||
|
||||
/* Main buffer control (downsampled-data buffer) */
|
||||
struct jpeg_d_main_controller {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(void, process_data, (j_decompress_ptr cinfo,
|
||||
JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
|
||||
JDIMENSION out_rows_avail));
|
||||
};
|
||||
|
||||
/* Coefficient buffer control */
|
||||
struct jpeg_d_coef_controller {
|
||||
JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(int, consume_data, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, start_output_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(int, decompress_data, (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE output_buf));
|
||||
/* Pointer to array of coefficient virtual arrays, or NULL if none */
|
||||
jvirt_barray_ptr *coef_arrays;
|
||||
};
|
||||
|
||||
/* Decompression postprocessing (color quantization buffer control) */
|
||||
struct jpeg_d_post_controller {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode));
|
||||
JMETHOD(void, post_process_data, (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf,
|
||||
JDIMENSION *in_row_group_ctr,
|
||||
JDIMENSION in_row_groups_avail,
|
||||
JSAMPARRAY output_buf,
|
||||
JDIMENSION *out_row_ctr,
|
||||
JDIMENSION out_rows_avail));
|
||||
};
|
||||
|
||||
/* Marker reading & parsing */
|
||||
struct jpeg_marker_reader {
|
||||
JMETHOD(void, reset_marker_reader, (j_decompress_ptr cinfo));
|
||||
/* Read markers until SOS or EOI.
|
||||
* Returns same codes as are defined for jpeg_consume_input:
|
||||
* JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI.
|
||||
*/
|
||||
JMETHOD(int, read_markers, (j_decompress_ptr cinfo));
|
||||
/* Read a restart marker --- exported for use by entropy decoder only */
|
||||
jpeg_marker_parser_method read_restart_marker;
|
||||
|
||||
/* State of marker reader --- nominally internal, but applications
|
||||
* supplying COM or APPn handlers might like to know the state.
|
||||
*/
|
||||
boolean saw_SOI; /* found SOI? */
|
||||
boolean saw_SOF; /* found SOF? */
|
||||
int next_restart_num; /* next restart number expected (0-7) */
|
||||
unsigned int discarded_bytes; /* # of bytes skipped looking for a marker */
|
||||
};
|
||||
|
||||
/* Entropy decoding */
|
||||
struct jpeg_entropy_decoder {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo,
|
||||
JBLOCKROW *MCU_data));
|
||||
};
|
||||
|
||||
/* Inverse DCT (also performs dequantization) */
|
||||
typedef JMETHOD(void, inverse_DCT_method_ptr,
|
||||
(j_decompress_ptr cinfo, jpeg_component_info * compptr,
|
||||
JCOEFPTR coef_block,
|
||||
JSAMPARRAY output_buf, JDIMENSION output_col));
|
||||
|
||||
struct jpeg_inverse_dct {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
|
||||
/* It is useful to allow each component to have a separate IDCT method. */
|
||||
inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS];
|
||||
};
|
||||
|
||||
/* Upsampling (note that upsampler must also call color converter) */
|
||||
struct jpeg_upsampler {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, upsample, (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf,
|
||||
JDIMENSION *in_row_group_ctr,
|
||||
JDIMENSION in_row_groups_avail,
|
||||
JSAMPARRAY output_buf,
|
||||
JDIMENSION *out_row_ctr,
|
||||
JDIMENSION out_rows_avail));
|
||||
|
||||
boolean need_context_rows; /* TRUE if need rows above & below */
|
||||
};
|
||||
|
||||
/* Colorspace conversion */
|
||||
struct jpeg_color_deconverter {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, color_convert, (j_decompress_ptr cinfo,
|
||||
JSAMPIMAGE input_buf, JDIMENSION input_row,
|
||||
JSAMPARRAY output_buf, int num_rows));
|
||||
};
|
||||
|
||||
/* Color quantization or color precision reduction */
|
||||
struct jpeg_color_quantizer {
|
||||
JMETHOD(void, start_pass, (j_decompress_ptr cinfo, boolean is_pre_scan));
|
||||
JMETHOD(void, color_quantize, (j_decompress_ptr cinfo,
|
||||
JSAMPARRAY input_buf, JSAMPARRAY output_buf,
|
||||
int num_rows));
|
||||
JMETHOD(void, finish_pass, (j_decompress_ptr cinfo));
|
||||
JMETHOD(void, new_color_map, (j_decompress_ptr cinfo));
|
||||
};
|
||||
|
||||
|
||||
/* Miscellaneous useful macros */
|
||||
|
||||
#undef MAX
|
||||
#define MAX(a,b) ((a) > (b) ? (a) : (b))
|
||||
#undef MIN
|
||||
#define MIN(a,b) ((a) < (b) ? (a) : (b))
|
||||
|
||||
|
||||
/* We assume that right shift corresponds to signed division by 2 with
|
||||
* rounding towards minus infinity. This is correct for typical "arithmetic
|
||||
* shift" instructions that shift in copies of the sign bit. But some
|
||||
* C compilers implement >> with an unsigned shift. For these machines you
|
||||
* must define RIGHT_SHIFT_IS_UNSIGNED.
|
||||
* RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity.
|
||||
* It is only applied with constant shift counts. SHIFT_TEMPS must be
|
||||
* included in the variables of any routine using RIGHT_SHIFT.
|
||||
*/
|
||||
|
||||
#ifdef RIGHT_SHIFT_IS_UNSIGNED
|
||||
#define SHIFT_TEMPS INT32 shift_temp;
|
||||
#define RIGHT_SHIFT(x,shft) \
|
||||
((shift_temp = (x)) < 0 ? \
|
||||
(shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \
|
||||
(shift_temp >> (shft)))
|
||||
#else
|
||||
#define SHIFT_TEMPS
|
||||
#define RIGHT_SHIFT(x,shft) ((x) >> (shft))
|
||||
#endif
|
||||
|
||||
|
||||
/* Short forms of external names for systems with brain-damaged linkers. */
|
||||
|
||||
#ifdef NEED_SHORT_EXTERNAL_NAMES
|
||||
#define jinit_compress_master jICompress
|
||||
#define jinit_c_master_control jICMaster
|
||||
#define jinit_c_main_controller jICMainC
|
||||
#define jinit_c_prep_controller jICPrepC
|
||||
#define jinit_c_coef_controller jICCoefC
|
||||
#define jinit_color_converter jICColor
|
||||
#define jinit_downsampler jIDownsampler
|
||||
#define jinit_forward_dct jIFDCT
|
||||
#define jinit_huff_encoder jIHEncoder
|
||||
#define jinit_arith_encoder jIAEncoder
|
||||
#define jinit_marker_writer jIMWriter
|
||||
#define jinit_master_decompress jIDMaster
|
||||
#define jinit_d_main_controller jIDMainC
|
||||
#define jinit_d_coef_controller jIDCoefC
|
||||
#define jinit_d_post_controller jIDPostC
|
||||
#define jinit_input_controller jIInCtlr
|
||||
#define jinit_marker_reader jIMReader
|
||||
#define jinit_huff_decoder jIHDecoder
|
||||
#define jinit_arith_decoder jIADecoder
|
||||
#define jinit_inverse_dct jIIDCT
|
||||
#define jinit_upsampler jIUpsampler
|
||||
#define jinit_color_deconverter jIDColor
|
||||
#define jinit_1pass_quantizer jI1Quant
|
||||
#define jinit_2pass_quantizer jI2Quant
|
||||
#define jinit_merged_upsampler jIMUpsampler
|
||||
#define jinit_memory_mgr jIMemMgr
|
||||
#define jdiv_round_up jDivRound
|
||||
#define jround_up jRound
|
||||
#define jcopy_sample_rows jCopySamples
|
||||
#define jcopy_block_row jCopyBlocks
|
||||
#define jzero_far jZeroFar
|
||||
#define jpeg_zigzag_order jZIGTable
|
||||
#define jpeg_natural_order jZAGTable
|
||||
#define jpeg_natural_order7 jZAGTable7
|
||||
#define jpeg_natural_order6 jZAGTable6
|
||||
#define jpeg_natural_order5 jZAGTable5
|
||||
#define jpeg_natural_order4 jZAGTable4
|
||||
#define jpeg_natural_order3 jZAGTable3
|
||||
#define jpeg_natural_order2 jZAGTable2
|
||||
#define jpeg_aritab jAriTab
|
||||
#endif /* NEED_SHORT_EXTERNAL_NAMES */
|
||||
|
||||
|
||||
/* Compression module initialization routines */
|
||||
EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo,
|
||||
boolean transcode_only));
|
||||
EXTERN(void) jinit_c_main_controller JPP((j_compress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_c_prep_controller JPP((j_compress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_c_coef_controller JPP((j_compress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_color_converter JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_downsampler JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_forward_dct JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_huff_encoder JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_arith_encoder JPP((j_compress_ptr cinfo));
|
||||
EXTERN(void) jinit_marker_writer JPP((j_compress_ptr cinfo));
|
||||
/* Decompression module initialization routines */
|
||||
EXTERN(void) jinit_master_decompress JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_d_main_controller JPP((j_decompress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_d_coef_controller JPP((j_decompress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_d_post_controller JPP((j_decompress_ptr cinfo,
|
||||
boolean need_full_buffer));
|
||||
EXTERN(void) jinit_input_controller JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_marker_reader JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_huff_decoder JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_arith_decoder JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_inverse_dct JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_upsampler JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_color_deconverter JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_1pass_quantizer JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_2pass_quantizer JPP((j_decompress_ptr cinfo));
|
||||
EXTERN(void) jinit_merged_upsampler JPP((j_decompress_ptr cinfo));
|
||||
/* Memory manager initialization */
|
||||
EXTERN(void) jinit_memory_mgr JPP((j_common_ptr cinfo));
|
||||
|
||||
/* Utility routines in jutils.c */
|
||||
EXTERN(long) jdiv_round_up JPP((long a, long b));
|
||||
EXTERN(long) jround_up JPP((long a, long b));
|
||||
EXTERN(void) jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row,
|
||||
JSAMPARRAY output_array, int dest_row,
|
||||
int num_rows, JDIMENSION num_cols));
|
||||
EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row,
|
||||
JDIMENSION num_blocks));
|
||||
EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
|
||||
/* Constant tables in jutils.c */
|
||||
#if 0 /* This table is not actually needed in v6a */
|
||||
extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */
|
||||
#endif
|
||||
extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */
|
||||
extern const int jpeg_natural_order7[]; /* zz to natural order for 7x7 block */
|
||||
extern const int jpeg_natural_order6[]; /* zz to natural order for 6x6 block */
|
||||
extern const int jpeg_natural_order5[]; /* zz to natural order for 5x5 block */
|
||||
extern const int jpeg_natural_order4[]; /* zz to natural order for 4x4 block */
|
||||
extern const int jpeg_natural_order3[]; /* zz to natural order for 3x3 block */
|
||||
extern const int jpeg_natural_order2[]; /* zz to natural order for 2x2 block */
|
||||
|
||||
/* Arithmetic coding probability estimation tables in jaricom.c */
|
||||
extern const INT32 jpeg_aritab[];
|
||||
|
||||
/* Suppress undefined-structure complaints if necessary. */
|
||||
|
||||
#ifdef INCOMPLETE_TYPES_BROKEN
|
||||
#ifndef AM_MEMORY_MANAGER /* only jmemmgr.c defines these */
|
||||
struct jvirt_sarray_control { long dummy; };
|
||||
struct jvirt_barray_control { long dummy; };
|
||||
#endif
|
||||
#endif /* INCOMPLETE_TYPES_BROKEN */
|
||||
|
|
File diff suppressed because it is too large
Load Diff
|
@ -1,14 +1,14 @@
|
|||
/*
|
||||
* jversion.h
|
||||
*
|
||||
* Copyright (C) 1991-1998, Thomas G. Lane.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file contains software version identification.
|
||||
*/
|
||||
|
||||
|
||||
#define JVERSION "6b 27-Mar-1998"
|
||||
|
||||
#define JCOPYRIGHT "Copyright (C) 1998, Thomas G. Lane"
|
||||
/*
|
||||
* jversion.h
|
||||
*
|
||||
* Copyright (C) 1991-2011, Thomas G. Lane, Guido Vollbeding.
|
||||
* This file is part of the Independent JPEG Group's software.
|
||||
* For conditions of distribution and use, see the accompanying README file.
|
||||
*
|
||||
* This file contains software version identification.
|
||||
*/
|
||||
|
||||
|
||||
#define JVERSION "8c 16-Jan-2011"
|
||||
|
||||
#define JCOPYRIGHT "Copyright (C) 2011, Thomas G. Lane, Guido Vollbeding"
|
||||
|
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1 @@
|
|||
b1f1bc364e108ecec0f4f429af18057d61c140f5
|
File diff suppressed because it is too large
Load Diff
|
@ -1,175 +0,0 @@
|
|||
|
||||
/* libpng STANDARD API DEFINITION */
|
||||
|
||||
/* pnglibconf.h - library build configuration */
|
||||
|
||||
/* libpng version 1.5.0 - last changed on January 6, 2011 */
|
||||
|
||||
/* Copyright (c) 1998-2010 Glenn Randers-Pehrson */
|
||||
|
||||
/* This code is released under the libpng license. */
|
||||
/* For conditions of distribution and use, see the disclaimer */
|
||||
/* and license in png.h */
|
||||
|
||||
/* pnglibconf.h */
|
||||
/* Machine generated file: DO NOT EDIT */
|
||||
/* Derived from: scripts/pnglibconf.dfa */
|
||||
#ifndef PNGLCONF_H
|
||||
#define PNGLCONF_H
|
||||
/* settings */
|
||||
#define PNG_MAX_GAMMA_8 11
|
||||
#define PNG_CALLOC_SUPPORTED
|
||||
#define PNG_QUANTIZE_RED_BITS 5
|
||||
#define PNG_USER_WIDTH_MAX 1000000L
|
||||
#define PNG_QUANTIZE_GREEN_BITS 5
|
||||
#define PNG_API_RULE 0
|
||||
#define PNG_QUANTIZE_BLUE_BITS 5
|
||||
#define PNG_USER_CHUNK_CACHE_MAX 0
|
||||
#define PNG_USER_HEIGHT_MAX 1000000L
|
||||
#define PNG_sCAL_PRECISION 5
|
||||
#define PNG_COST_SHIFT 3
|
||||
#define PNG_WEIGHT_SHIFT 8
|
||||
#define PNG_USER_CHUNK_MALLOC_MAX 0
|
||||
#define PNG_DEFAULT_READ_MACROS 1
|
||||
#define PNG_ZBUF_SIZE 8192
|
||||
#define PNG_GAMMA_THRESHOLD_FIXED 5000
|
||||
/* end of settings */
|
||||
/* options */
|
||||
#define PNG_INFO_IMAGE_SUPPORTED
|
||||
#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
#define PNG_POINTER_INDEXING_SUPPORTED
|
||||
#define PNG_WARNINGS_SUPPORTED
|
||||
#define PNG_FLOATING_ARITHMETIC_SUPPORTED
|
||||
#define PNG_WRITE_SUPPORTED
|
||||
#define PNG_WRITE_INTERLACING_SUPPORTED
|
||||
#define PNG_WRITE_16BIT_SUPPORTED
|
||||
#define PNG_EASY_ACCESS_SUPPORTED
|
||||
#define PNG_ALIGN_MEMORY_SUPPORTED
|
||||
#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
|
||||
#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
|
||||
#define PNG_USER_LIMITS_SUPPORTED
|
||||
#define PNG_FIXED_POINT_SUPPORTED
|
||||
/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
|
||||
#define PNG_ERROR_TEXT_SUPPORTED
|
||||
#define PNG_READ_SUPPORTED
|
||||
/*#undef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED*/
|
||||
#define PNG_BENIGN_ERRORS_SUPPORTED
|
||||
//cjh #define PNG_SETJMP_SUPPORTED
|
||||
#define PNG_WRITE_FLUSH_SUPPORTED
|
||||
#define PNG_MNG_FEATURES_SUPPORTED
|
||||
#define PNG_FLOATING_POINT_SUPPORTED
|
||||
#define PNG_INCH_CONVERSIONS_SUPPORTED
|
||||
#define PNG_STDIO_SUPPORTED
|
||||
#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
|
||||
#define PNG_USER_MEM_SUPPORTED
|
||||
#define PNG_IO_STATE_SUPPORTED
|
||||
#define PNG_SET_USER_LIMITS_SUPPORTED
|
||||
#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
|
||||
#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED
|
||||
#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
|
||||
#define PNG_WRITE_FILTER_SUPPORTED
|
||||
#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
|
||||
#define PNG_WRITE_iCCP_SUPPORTED
|
||||
#define PNG_READ_TRANSFORMS_SUPPORTED
|
||||
#define PNG_READ_GAMMA_SUPPORTED
|
||||
#define PNG_READ_bKGD_SUPPORTED
|
||||
#define PNG_UNKNOWN_CHUNKS_SUPPORTED
|
||||
#define PNG_READ_sCAL_SUPPORTED
|
||||
#define PNG_WRITE_hIST_SUPPORTED
|
||||
#define PNG_READ_OPT_PLTE_SUPPORTED
|
||||
#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
|
||||
#define PNG_WRITE_gAMA_SUPPORTED
|
||||
#define PNG_READ_GRAY_TO_RGB_SUPPORTED
|
||||
#define PNG_WRITE_pCAL_SUPPORTED
|
||||
#define PNG_READ_INVERT_ALPHA_SUPPORTED
|
||||
#define PNG_WRITE_TRANSFORMS_SUPPORTED
|
||||
#define PNG_READ_sBIT_SUPPORTED
|
||||
#define PNG_READ_PACK_SUPPORTED
|
||||
#define PNG_WRITE_SWAP_SUPPORTED
|
||||
#define PNG_READ_cHRM_SUPPORTED
|
||||
#define PNG_WRITE_tIME_SUPPORTED
|
||||
#define PNG_READ_INTERLACING_SUPPORTED
|
||||
#define PNG_READ_tRNS_SUPPORTED
|
||||
#define PNG_WRITE_pHYs_SUPPORTED
|
||||
#define PNG_WRITE_INVERT_SUPPORTED
|
||||
#define PNG_READ_RGB_TO_GRAY_SUPPORTED
|
||||
#define PNG_WRITE_sRGB_SUPPORTED
|
||||
#define PNG_READ_oFFs_SUPPORTED
|
||||
#define PNG_WRITE_FILLER_SUPPORTED
|
||||
#define PNG_WRITE_TEXT_SUPPORTED
|
||||
#define PNG_WRITE_SHIFT_SUPPORTED
|
||||
#define PNG_PROGRESSIVE_READ_SUPPORTED
|
||||
#define PNG_READ_SHIFT_SUPPORTED
|
||||
#define PNG_CONVERT_tIME_SUPPORTED
|
||||
#define PNG_READ_USER_TRANSFORM_SUPPORTED
|
||||
#define PNG_READ_INT_FUNCTIONS_SUPPORTED
|
||||
#define PNG_READ_USER_CHUNKS_SUPPORTED
|
||||
#define PNG_READ_hIST_SUPPORTED
|
||||
#define PNG_READ_16BIT_SUPPORTED
|
||||
#define PNG_READ_SWAP_ALPHA_SUPPORTED
|
||||
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
|
||||
#define PNG_SEQUENTIAL_READ_SUPPORTED
|
||||
#define PNG_READ_BACKGROUND_SUPPORTED
|
||||
#define PNG_READ_QUANTIZE_SUPPORTED
|
||||
#define PNG_READ_iCCP_SUPPORTED
|
||||
#define PNG_READ_STRIP_ALPHA_SUPPORTED
|
||||
#define PNG_READ_PACKSWAP_SUPPORTED
|
||||
#define PNG_READ_sRGB_SUPPORTED
|
||||
#define PNG_WRITE_tEXt_SUPPORTED
|
||||
#define PNG_READ_gAMA_SUPPORTED
|
||||
#define PNG_READ_pCAL_SUPPORTED
|
||||
#define PNG_READ_EXPAND_SUPPORTED
|
||||
#define PNG_WRITE_sPLT_SUPPORTED
|
||||
#define PNG_READ_SWAP_SUPPORTED
|
||||
#define PNG_READ_tIME_SUPPORTED
|
||||
#define PNG_READ_pHYs_SUPPORTED
|
||||
#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
|
||||
#define PNG_TIME_RFC1123_SUPPORTED
|
||||
#define PNG_READ_TEXT_SUPPORTED
|
||||
#define PNG_WRITE_BGR_SUPPORTED
|
||||
#define PNG_USER_CHUNKS_SUPPORTED
|
||||
//cjh #define PNG_CONSOLE_IO_SUPPORTED
|
||||
#define PNG_WRITE_PACK_SUPPORTED
|
||||
#define PNG_READ_FILLER_SUPPORTED
|
||||
#define PNG_WRITE_bKGD_SUPPORTED
|
||||
#define PNG_WRITE_tRNS_SUPPORTED
|
||||
#define PNG_READ_sPLT_SUPPORTED
|
||||
#define PNG_WRITE_sCAL_SUPPORTED
|
||||
#define PNG_WRITE_oFFs_SUPPORTED
|
||||
#define PNG_READ_tEXt_SUPPORTED
|
||||
#define PNG_WRITE_sBIT_SUPPORTED
|
||||
#define PNG_READ_INVERT_SUPPORTED
|
||||
#define PNG_READ_16_TO_8_SUPPORTED
|
||||
#define PNG_WRITE_cHRM_SUPPORTED
|
||||
#define PNG_16BIT_SUPPORTED
|
||||
#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
|
||||
#define PNG_READ_BGR_SUPPORTED
|
||||
#define PNG_WRITE_PACKSWAP_SUPPORTED
|
||||
#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
|
||||
#define PNG_sCAL_SUPPORTED
|
||||
#define PNG_WRITE_zTXt_SUPPORTED
|
||||
#define PNG_sBIT_SUPPORTED
|
||||
#define PNG_cHRM_SUPPORTED
|
||||
#define PNG_bKGD_SUPPORTED
|
||||
#define PNG_tRNS_SUPPORTED
|
||||
#define PNG_WRITE_iTXt_SUPPORTED
|
||||
#define PNG_oFFs_SUPPORTED
|
||||
#define PNG_USER_TRANSFORM_PTR_SUPPORTED
|
||||
#define PNG_hIST_SUPPORTED
|
||||
#define PNG_iCCP_SUPPORTED
|
||||
#define PNG_sRGB_SUPPORTED
|
||||
#define PNG_READ_zTXt_SUPPORTED
|
||||
#define PNG_gAMA_SUPPORTED
|
||||
#define PNG_pCAL_SUPPORTED
|
||||
#define PNG_CHECK_cHRM_SUPPORTED
|
||||
#define PNG_tIME_SUPPORTED
|
||||
#define PNG_pHYs_SUPPORTED
|
||||
#define PNG_READ_iTXt_SUPPORTED
|
||||
#define PNG_TEXT_SUPPORTED
|
||||
#define PNG_SAVE_INT_32_SUPPORTED
|
||||
#define PNG_sPLT_SUPPORTED
|
||||
#define PNG_tEXt_SUPPORTED
|
||||
#define PNG_zTXt_SUPPORTED
|
||||
#define PNG_iTXt_SUPPORTED
|
||||
/* end of options */
|
||||
#endif /* PNGLCONF_H */
|
Loading…
Reference in New Issue