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authorTom Sepez <tsepez@chromium.org>2015-06-17 17:17:14 -0700
committerTom Sepez <tsepez@chromium.org>2015-06-17 17:17:14 -0700
commitc7a17bf9cdb0d646aa8b653e6ab2678a1837ed6a (patch)
treea63eadd4ebea416b8a400f1fc7e3d103c665a0e4 /third_party/libopenjpeg20/mqc.h
parentff8347a4b16f000be628c5e10d03a1e1c17537eb (diff)
downloadpdfium-c7a17bf9cdb0d646aa8b653e6ab2678a1837ed6a.tar.xz
Move libopenjpeg to third_party/
We get to delete a whole bunch of fx_foo.c files that did nothing but #include "foo.c" after defining _CRT_SECURE_NO_WARNINGS. Do this from the .gyp/.gn files instead. Also sort some "config"s in .gn file. R=thestig@chromium.org Review URL: https://codereview.chromium.org/1185373010.
Diffstat (limited to 'third_party/libopenjpeg20/mqc.h')
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diff --git a/third_party/libopenjpeg20/mqc.h b/third_party/libopenjpeg20/mqc.h
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+/*
+ * The copyright in this software is being made available under the 2-clauses
+ * BSD License, included below. This software may be subject to other third
+ * party and contributor rights, including patent rights, and no such rights
+ * are granted under this license.
+ *
+ * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2014, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux
+ * Copyright (c) 2003-2014, Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __MQC_H
+#define __MQC_H
+/**
+@file mqc.h
+@brief Implementation of an MQ-Coder (MQC)
+
+The functions in MQC.C have for goal to realize the MQ-coder operations. The functions
+in MQC.C are used by some function in T1.C.
+*/
+
+/** @defgroup MQC MQC - Implementation of an MQ-Coder */
+/*@{*/
+
+/**
+This struct defines the state of a context.
+*/
+typedef struct opj_mqc_state {
+ /** the probability of the Least Probable Symbol (0.75->0x8000, 1.5->0xffff) */
+ OPJ_UINT32 qeval;
+ /** the Most Probable Symbol (0 or 1) */
+ OPJ_UINT32 mps;
+ /** next state if the next encoded symbol is the MPS */
+ struct opj_mqc_state *nmps;
+ /** next state if the next encoded symbol is the LPS */
+ struct opj_mqc_state *nlps;
+} opj_mqc_state_t;
+
+#define MQC_NUMCTXS 19
+
+/**
+MQ coder
+*/
+typedef struct opj_mqc {
+ OPJ_UINT32 c;
+ OPJ_UINT32 a;
+ OPJ_UINT32 ct;
+ OPJ_BYTE *bp;
+ OPJ_BYTE *start;
+ OPJ_BYTE *end;
+ opj_mqc_state_t *ctxs[MQC_NUMCTXS];
+ opj_mqc_state_t **curctx;
+#ifdef MQC_PERF_OPT
+ unsigned char *buffer;
+#endif
+} opj_mqc_t;
+
+/** @name Exported functions */
+/*@{*/
+/* ----------------------------------------------------------------------- */
+/**
+Create a new MQC handle
+@return Returns a new MQC handle if successful, returns NULL otherwise
+*/
+opj_mqc_t* opj_mqc_create(void);
+/**
+Destroy a previously created MQC handle
+@param mqc MQC handle to destroy
+*/
+void opj_mqc_destroy(opj_mqc_t *mqc);
+/**
+Return the number of bytes written/read since initialisation
+@param mqc MQC handle
+@return Returns the number of bytes already encoded
+*/
+OPJ_UINT32 opj_mqc_numbytes(opj_mqc_t *mqc);
+/**
+Reset the states of all the context of the coder/decoder
+(each context is set to a state where 0 and 1 are more or less equiprobable)
+@param mqc MQC handle
+*/
+void opj_mqc_resetstates(opj_mqc_t *mqc);
+/**
+Set the state of a particular context
+@param mqc MQC handle
+@param ctxno Number that identifies the context
+@param msb The MSB of the new state of the context
+@param prob Number that identifies the probability of the symbols for the new state of the context
+*/
+void opj_mqc_setstate(opj_mqc_t *mqc, OPJ_UINT32 ctxno, OPJ_UINT32 msb, OPJ_INT32 prob);
+/**
+Initialize the encoder
+@param mqc MQC handle
+@param bp Pointer to the start of the buffer where the bytes will be written
+*/
+void opj_mqc_init_enc(opj_mqc_t *mqc, OPJ_BYTE *bp);
+/**
+Set the current context used for coding/decoding
+@param mqc MQC handle
+@param ctxno Number that identifies the context
+*/
+#define opj_mqc_setcurctx(mqc, ctxno) (mqc)->curctx = &(mqc)->ctxs[(OPJ_UINT32)(ctxno)]
+/**
+Encode a symbol using the MQ-coder
+@param mqc MQC handle
+@param d The symbol to be encoded (0 or 1)
+*/
+void opj_mqc_encode(opj_mqc_t *mqc, OPJ_UINT32 d);
+/**
+Flush the encoder, so that all remaining data is written
+@param mqc MQC handle
+*/
+void opj_mqc_flush(opj_mqc_t *mqc);
+/**
+BYPASS mode switch, initialization operation.
+JPEG 2000 p 505.
+<h2>Not fully implemented and tested !!</h2>
+@param mqc MQC handle
+*/
+void opj_mqc_bypass_init_enc(opj_mqc_t *mqc);
+/**
+BYPASS mode switch, coding operation.
+JPEG 2000 p 505.
+<h2>Not fully implemented and tested !!</h2>
+@param mqc MQC handle
+@param d The symbol to be encoded (0 or 1)
+*/
+void opj_mqc_bypass_enc(opj_mqc_t *mqc, OPJ_UINT32 d);
+/**
+BYPASS mode switch, flush operation
+<h2>Not fully implemented and tested !!</h2>
+@param mqc MQC handle
+@return Returns 1 (always)
+*/
+OPJ_UINT32 opj_mqc_bypass_flush_enc(opj_mqc_t *mqc);
+/**
+RESET mode switch
+@param mqc MQC handle
+*/
+void opj_mqc_reset_enc(opj_mqc_t *mqc);
+/**
+RESTART mode switch (TERMALL)
+@param mqc MQC handle
+@return Returns 1 (always)
+*/
+OPJ_UINT32 opj_mqc_restart_enc(opj_mqc_t *mqc);
+/**
+RESTART mode switch (TERMALL) reinitialisation
+@param mqc MQC handle
+*/
+void opj_mqc_restart_init_enc(opj_mqc_t *mqc);
+/**
+ERTERM mode switch (PTERM)
+@param mqc MQC handle
+*/
+void opj_mqc_erterm_enc(opj_mqc_t *mqc);
+/**
+SEGMARK mode switch (SEGSYM)
+@param mqc MQC handle
+*/
+void opj_mqc_segmark_enc(opj_mqc_t *mqc);
+/**
+Initialize the decoder
+@param mqc MQC handle
+@param bp Pointer to the start of the buffer from which the bytes will be read
+@param len Length of the input buffer
+*/
+OPJ_BOOL opj_mqc_init_dec(opj_mqc_t *mqc, OPJ_BYTE *bp, OPJ_UINT32 len);
+/**
+Decode a symbol
+@param mqc MQC handle
+@return Returns the decoded symbol (0 or 1)
+*/
+OPJ_INT32 opj_mqc_decode(opj_mqc_t * const mqc);
+/* ----------------------------------------------------------------------- */
+/*@}*/
+
+/*@}*/
+
+#endif /* __MQC_H */