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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /support/dktools/dk4rld.c
Initial commit
Diffstat (limited to 'support/dktools/dk4rld.c')
-rw-r--r--support/dktools/dk4rld.c212
1 files changed, 212 insertions, 0 deletions
diff --git a/support/dktools/dk4rld.c b/support/dktools/dk4rld.c
new file mode 100644
index 0000000000..c1d3756088
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+++ b/support/dktools/dk4rld.c
@@ -0,0 +1,212 @@
+/*
+ WARNING: This file was generated by dkct.
+ Changes you make here will be lost if dkct is run again!
+ You should modify the original source and run dkct on it.
+ Original source: dk4rld.ctr
+*/
+
+/*
+Copyright (C) 2015-2017, Dirk Krause
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above opyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+* Neither the name of the author nor the names of contributors may be used
+ to endorse or promote products derived from this software without specific
+ prior written permission.
+
+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.
+*/
+
+/** @file dk4rld.c The dk4rld module.
+*/
+
+
+#line 121 "dk4rld.ctr"
+
+#include "dk4rld.h"
+#include "dk4edstm.h"
+#include "dk4mem.h"
+
+
+
+
+
+#line 129 "dk4rld.ctr"
+
+
+
+/** Decoder states.
+*/
+enum {
+ /** Start state, exepect run length
+ or literal data length.
+ */
+ RLD_ST_EXPECT_KEY_BYTE = 0,
+
+ /** Expect byte value for run.
+ */
+ RLD_ST_EXPECT_RUN_BYTE ,
+
+ /** Expect literal byte.
+ */
+ RLD_ST_EXPECT_LITERAL_BYTE ,
+
+ /** No further input accepted as
+ EOD marker was found.
+ */
+ RLD_ST_EOD_FOUND
+};
+
+
+
+void
+dk4rld_init(dk4_rl_dec_t *dec, dk4_er_t *erp)
+{
+
+
+#line 160 "dk4rld.ctr"
+ if (NULL != dec) {
+ DK4_MEMRES(dec, sizeof(dk4_rl_dec_t));
+ dec->oused = 0;
+ dec->ll = 0;
+ dec->st = RLD_ST_EXPECT_KEY_BYTE;
+ } else {
+ dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
+ }
+
+#line 168 "dk4rld.ctr"
+}
+
+
+
+int
+dk4rld_add(dk4_rl_dec_t *dec, unsigned char inbyte, dk4_er_t *erp)
+{
+ int back = DK4_EDSTM_ERROR;
+
+
+#line 177 "dk4rld.ctr"
+ if (NULL != dec) {
+ switch (dec->st) {
+ case RLD_ST_EXPECT_KEY_BYTE : {
+ if ((unsigned char)128 > inbyte) {
+ /*
+ Literal byte sequence
+ */
+ dec->st = RLD_ST_EXPECT_LITERAL_BYTE;
+ dec->ll = (size_t)inbyte + 1;
+ back = DK4_EDSTM_ACCEPT;
+ } else {
+ if ((unsigned char)128 < inbyte) {
+ /*
+ Run of equal bytes
+ */
+ dec->st = RLD_ST_EXPECT_RUN_BYTE;
+ dec->ll = (size_t)257 - (size_t)inbyte;
+ back = DK4_EDSTM_ACCEPT;
+ } else {
+ /*
+ EOD marker found
+ */
+ dec->st = RLD_ST_EOD_FOUND;
+ back = DK4_EDSTM_STOP;
+ }
+ }
+ } break;
+ case RLD_ST_EXPECT_RUN_BYTE : {
+ dk4mem_set(&(dec->ob[0]), dec->ll, inbyte, NULL);
+ dec->oused = dec->ll;
+ dec->st = RLD_ST_EXPECT_KEY_BYTE;
+ back = DK4_EDSTM_FINISHED;
+ } break;
+ case RLD_ST_EXPECT_LITERAL_BYTE : {
+ dec->ob[0] = inbyte;
+ dec->oused = 1;
+ dec->ll -= 1;
+ if (0 == dec->ll) {
+ dec->st = RLD_ST_EXPECT_KEY_BYTE;
+ }
+ back = DK4_EDSTM_FINISHED;
+ } break;
+ default : {
+ dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
+ } break;
+ }
+ } else {
+ dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
+ }
+
+#line 226 "dk4rld.ctr"
+ return back;
+}
+
+
+
+int
+dk4rld_finish(dk4_rl_dec_t *dec, dk4_er_t *erp)
+{
+ int back = DK4_EDSTM_ERROR;
+
+
+#line 236 "dk4rld.ctr"
+ if (NULL != dec) {
+ switch (dec->st) {
+ case RLD_ST_EXPECT_KEY_BYTE : case RLD_ST_EOD_FOUND : {
+ back = DK4_EDSTM_ACCEPT;
+ } break;
+ default : {
+ dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
+ } break;
+ }
+ } else {
+ dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
+ }
+
+#line 248 "dk4rld.ctr"
+ return back;
+}
+
+
+
+int
+dk4rld_output(
+ const unsigned char **dptr, size_t *szptr, dk4_rl_dec_t *dec, dk4_er_t *erp
+)
+{
+ int back = 0;
+
+
+#line 260 "dk4rld.ctr"
+ if (NULL != dec) {
+ if (0 < dec->oused) {
+ *dptr = &(dec->ob[0]);
+ *szptr = dec->oused;
+ back = 1;
+ } else {
+ *dptr = NULL;
+ *szptr = 0;
+ }
+ } else {
+ dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
+ }
+
+#line 272 "dk4rld.ctr"
+ return back;
+}
+