-/*\r
- * Copyright (c) 2001-2003, David Janssens\r
- * Copyright (c) 2002-2003, Yannick Verschueren\r
- * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe\r
- * Copyright (c) 2005, Hervé Drolon, FreeImage Team\r
- * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium\r
- * All rights reserved.\r
- *\r
- * Redistribution and use in source and binary forms, with or without\r
- * modification, are permitted provided that the following conditions\r
- * are met:\r
- * 1. Redistributions of source code must retain the above copyright\r
- * notice, this list of conditions and the following disclaimer.\r
- * 2. Redistributions in binary form must reproduce the above copyright\r
- * notice, this list of conditions and the following disclaimer in the\r
- * documentation and/or other materials provided with the distribution.\r
- *\r
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'\r
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE\r
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
- * POSSIBILITY OF SUCH DAMAGE.\r
- */\r
-\r
-#ifndef __MQC_H\r
-#define __MQC_H\r
-/**\r
-@file mqc.h\r
-@brief Implementation of an MQ-Coder (MQC)\r
-\r
-The functions in MQC.C have for goal to realize the MQ-coder operations. The functions\r
-in MQC.C are used by some function in T1.C.\r
-*/\r
-\r
-/** @defgroup MQC MQC - Implementation of an MQ-Coder */\r
-/*@{*/\r
-\r
-/**\r
-This struct defines the state of a context.\r
-*/\r
-typedef struct opj_mqc_state {\r
- /** the probability of the Least Probable Symbol (0.75->0x8000, 1.5->0xffff) */\r
- unsigned int qeval;\r
- /** the Most Probable Symbol (0 or 1) */\r
- int mps;\r
- /** next state if the next encoded symbol is the MPS */\r
- struct opj_mqc_state *nmps;\r
- /** next state if the next encoded symbol is the LPS */\r
- struct opj_mqc_state *nlps;\r
-} opj_mqc_state_t;\r
-\r
-#define MQC_NUMCTXS 32\r
-\r
-/**\r
-MQ coder\r
-*/\r
-typedef struct opj_mqc {\r
- unsigned int c;\r
- unsigned int a;\r
- unsigned int ct;\r
- unsigned char *bp;\r
- unsigned char *start;\r
- unsigned char *end;\r
- opj_mqc_state_t *ctxs[MQC_NUMCTXS];\r
- opj_mqc_state_t **curctx;\r
-} opj_mqc_t;\r
-\r
-/** @name Exported functions */\r
-/*@{*/\r
-/* ----------------------------------------------------------------------- */\r
-/**\r
-Create a new MQC handle \r
-@return Returns a new MQC handle if successful, returns NULL otherwise\r
-*/\r
-opj_mqc_t* mqc_create();\r
-/**\r
-Destroy a previously created MQC handle\r
-@param mqc MQC handle to destroy\r
-*/\r
-void mqc_destroy(opj_mqc_t *mqc);\r
-/**\r
-Return the number of bytes written/read since initialisation\r
-@param mqc MQC handle\r
-@return Returns the number of bytes already encoded\r
-*/\r
-int mqc_numbytes(opj_mqc_t *mqc);\r
-/**\r
-Reset the states of all the context of the coder/decoder \r
-(each context is set to a state where 0 and 1 are more or less equiprobable)\r
-@param mqc MQC handle\r
-*/\r
-void mqc_resetstates(opj_mqc_t *mqc);\r
-/**\r
-Set the state of a particular context\r
-@param mqc MQC handle\r
-@param ctxno Number that identifies the context\r
-@param msb The MSB of the new state of the context\r
-@param prob Number that identifies the probability of the symbols for the new state of the context\r
-*/\r
-void mqc_setstate(opj_mqc_t *mqc, int ctxno, int msb, int prob);\r
-/**\r
-Initialize the encoder\r
-@param mqc MQC handle\r
-@param bp Pointer to the start of the buffer where the bytes will be written\r
-*/\r
-void mqc_init_enc(opj_mqc_t *mqc, unsigned char *bp);\r
-/**\r
-Set the current context used for coding/decoding\r
-@param mqc MQC handle\r
-@param ctxno Number that identifies the context\r
-*/\r
-void mqc_setcurctx(opj_mqc_t *mqc, int ctxno);\r
-/**\r
-Encode a symbol using the MQ-coder\r
-@param mqc MQC handle\r
-@param d The symbol to be encoded (0 or 1)\r
-*/\r
-void mqc_encode(opj_mqc_t *mqc, int d);\r
-/**\r
-Flush the encoder, so that all remaining data is written\r
-@param mqc MQC handle\r
-*/\r
-void mqc_flush(opj_mqc_t *mqc);\r
-/**\r
-BYPASS mode switch, initialization operation. \r
-JPEG 2000 p 505. \r
-<h2>Not fully implemented and tested !!</h2>\r
-@param mqc MQC handle\r
-*/\r
-void mqc_bypass_init_enc(opj_mqc_t *mqc);\r
-/**\r
-BYPASS mode switch, coding operation. \r
-JPEG 2000 p 505. \r
-<h2>Not fully implemented and tested !!</h2>\r
-@param mqc MQC handle\r
-@param d The symbol to be encoded (0 or 1)\r
-*/\r
-void mqc_bypass_enc(opj_mqc_t *mqc, int d);\r
-/**\r
-BYPASS mode switch, flush operation\r
-<h2>Not fully implemented and tested !!</h2>\r
-@param mqc MQC handle\r
-@return Returns 1 (always)\r
-*/\r
-int mqc_bypass_flush_enc(opj_mqc_t *mqc);\r
-/**\r
-RESET mode switch\r
-@param mqc MQC handle\r
-*/\r
-void mqc_reset_enc(opj_mqc_t *mqc);\r
-/**\r
-RESTART mode switch (TERMALL)\r
-@param mqc MQC handle\r
-@return Returns 1 (always)\r
-*/\r
-int mqc_restart_enc(opj_mqc_t *mqc);\r
-/**\r
-RESTART mode switch (TERMALL) reinitialisation\r
-@param mqc MQC handle\r
-*/\r
-void mqc_restart_init_enc(opj_mqc_t *mqc);\r
-/**\r
-ERTERM mode switch (PTERM)\r
-@param mqc MQC handle\r
-*/\r
-void mqc_erterm_enc(opj_mqc_t *mqc);\r
-/**\r
-SEGMARK mode switch (SEGSYM)\r
-@param mqc MQC handle\r
-*/\r
-void mqc_segmark_enc(opj_mqc_t *mqc);\r
-/**\r
-Initialize the decoder\r
-@param mqc MQC handle\r
-@param bp Pointer to the start of the buffer from which the bytes will be read\r
-@param len Length of the input buffer\r
-*/\r
-void mqc_init_dec(opj_mqc_t *mqc, unsigned char *bp, int len);\r
-/**\r
-Decode a symbol\r
-@param mqc MQC handle\r
-@return Returns the decoded symbol (0 or 1)\r
-*/\r
-int mqc_decode(opj_mqc_t *mqc);\r
-/* ----------------------------------------------------------------------- */\r
-/*@}*/\r
-\r
-/*@}*/\r
-\r
-#endif /* __MQC_H */\r
+/*
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
+ * Copyright (c) 2005, Hervé Drolon, FreeImage Team
+ * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * 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) */
+ unsigned int qeval;
+ /** the Most Probable Symbol (0 or 1) */
+ int 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 32
+
+/**
+MQ coder
+*/
+typedef struct opj_mqc {
+ unsigned int c;
+ unsigned int a;
+ unsigned int ct;
+ unsigned char *bp;
+ unsigned char *start;
+ unsigned char *end;
+ opj_mqc_state_t *ctxs[MQC_NUMCTXS];
+ opj_mqc_state_t **curctx;
+} 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* mqc_create();
+/**
+Destroy a previously created MQC handle
+@param mqc MQC handle to destroy
+*/
+void 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
+*/
+int 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 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 mqc_setstate(opj_mqc_t *mqc, int ctxno, int msb, int prob);
+/**
+Initialize the encoder
+@param mqc MQC handle
+@param bp Pointer to the start of the buffer where the bytes will be written
+*/
+void mqc_init_enc(opj_mqc_t *mqc, unsigned char *bp);
+/**
+Set the current context used for coding/decoding
+@param mqc MQC handle
+@param ctxno Number that identifies the context
+*/
+void mqc_setcurctx(opj_mqc_t *mqc, int ctxno);
+/**
+Encode a symbol using the MQ-coder
+@param mqc MQC handle
+@param d The symbol to be encoded (0 or 1)
+*/
+void mqc_encode(opj_mqc_t *mqc, int d);
+/**
+Flush the encoder, so that all remaining data is written
+@param mqc MQC handle
+*/
+void 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 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 mqc_bypass_enc(opj_mqc_t *mqc, int d);
+/**
+BYPASS mode switch, flush operation
+<h2>Not fully implemented and tested !!</h2>
+@param mqc MQC handle
+@return Returns 1 (always)
+*/
+int mqc_bypass_flush_enc(opj_mqc_t *mqc);
+/**
+RESET mode switch
+@param mqc MQC handle
+*/
+void mqc_reset_enc(opj_mqc_t *mqc);
+/**
+RESTART mode switch (TERMALL)
+@param mqc MQC handle
+@return Returns 1 (always)
+*/
+int mqc_restart_enc(opj_mqc_t *mqc);
+/**
+RESTART mode switch (TERMALL) reinitialisation
+@param mqc MQC handle
+*/
+void mqc_restart_init_enc(opj_mqc_t *mqc);
+/**
+ERTERM mode switch (PTERM)
+@param mqc MQC handle
+*/
+void mqc_erterm_enc(opj_mqc_t *mqc);
+/**
+SEGMARK mode switch (SEGSYM)
+@param mqc MQC handle
+*/
+void 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
+*/
+void mqc_init_dec(opj_mqc_t *mqc, unsigned char *bp, int len);
+/**
+Decode a symbol
+@param mqc MQC handle
+@return Returns the decoded symbol (0 or 1)
+*/
+int mqc_decode(opj_mqc_t *mqc);
+/* ----------------------------------------------------------------------- */
+/*@}*/
+
+/*@}*/
+
+#endif /* __MQC_H */
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