From 04dcea14217395ee09915aafb4532a6dd495fa53 Mon Sep 17 00:00:00 2001
From: Yann Herklotz <git@yannherklotz.com>
Date: Fri, 19 Jun 2020 11:17:51 +0100
Subject: Add CHstone

---
 benchmarks/CHStone/jpeg/jfif_read.c | 109 ++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100755 benchmarks/CHStone/jpeg/jfif_read.c

(limited to 'benchmarks/CHStone/jpeg/jfif_read.c')

diff --git a/benchmarks/CHStone/jpeg/jfif_read.c b/benchmarks/CHStone/jpeg/jfif_read.c
new file mode 100755
index 0000000..c237344
--- /dev/null
+++ b/benchmarks/CHStone/jpeg/jfif_read.c
@@ -0,0 +1,109 @@
+/*
++--------------------------------------------------------------------------+
+| CHStone : a suite of benchmark programs for C-based High-Level Synthesis |
+| ======================================================================== |
+|                                                                          |
+| * Collected and Modified : Y. Hara, H. Tomiyama, S. Honda,               |
+|                            H. Takada and K. Ishii                        |
+|                            Nagoya University, Japan                      |
+|                                                                          |
+| * Remark :                                                               |
+|    1. This source code is modified to unify the formats of the benchmark |
+|       programs in CHStone.                                               |
+|    2. Test vectors are added for CHStone.                                |
+|    3. If "main_result" is 0 at the end of the program, the program is    |
+|       correctly executed.                                                |
+|    4. Please follow the copyright of each benchmark program.             |
++--------------------------------------------------------------------------+
+*/
+/*
+ * Copyright (C) 2008
+ * Y. Hara, H. Tomiyama, S. Honda, H. Takada and K. Ishii
+ * Nagoya University, Japan
+ * All rights reserved.
+ *
+ * Disclaimer of Warranty
+ *
+ * These software programs are available to the user without any license fee or
+ * royalty on an "as is" basis. The authors disclaims any and all warranties, 
+ * whether express, implied, or statuary, including any implied warranties or 
+ * merchantability or of fitness for a particular purpose. In no event shall the
+ * copyright-holder be liable for any incidental, punitive, or consequential damages
+ * of any kind whatsoever arising from the use of these programs. This disclaimer
+ * of warranty extends to the user of these programs and user's customers, employees,
+ * agents, transferees, successors, and assigns.
+ *
+ */
+/*
+ * Read the header information from buffer in JFIF format and begin decoding
+ *
+ *  @(#) $Id: jfif_read.c,v 1.2 2003/07/18 10:19:21 honda Exp $ 
+ */
+
+/*
+ * Initialize after reading markers
+ */
+void
+jpeg_init_decompress ()
+{
+  int tmp;
+  /*
+   * Get MCU number
+   */
+  p_jinfo_MCUHeight = (p_jinfo_image_height - 1) / 8 + 1;
+  p_jinfo_MCUWidth = (p_jinfo_image_width - 1) / 8 + 1;
+  p_jinfo_NumMCU = p_jinfo_MCUHeight * p_jinfo_MCUWidth;
+
+  /*
+   * Create Huffman Table for decoding
+   */
+  tmp = huff_make_dhuff_tb (&p_jinfo_dc_xhuff_tbl_bits[0][0],
+			    p_jinfo_dc_dhuff_tbl_ml[0],
+			    &p_jinfo_dc_dhuff_tbl_maxcode[0][0],
+			    &p_jinfo_dc_dhuff_tbl_mincode[0][0],
+			    &p_jinfo_dc_dhuff_tbl_valptr[0][0]);
+  p_jinfo_dc_dhuff_tbl_ml[0] = tmp;
+  tmp = huff_make_dhuff_tb (&p_jinfo_dc_xhuff_tbl_bits[1][0],
+			    p_jinfo_dc_dhuff_tbl_ml[1],
+			    &p_jinfo_dc_dhuff_tbl_maxcode[1][0],
+			    &p_jinfo_dc_dhuff_tbl_mincode[1][0],
+			    &p_jinfo_dc_dhuff_tbl_valptr[1][0]);
+  p_jinfo_dc_dhuff_tbl_ml[1] = tmp;
+  tmp = huff_make_dhuff_tb (&p_jinfo_ac_xhuff_tbl_bits[0][0],
+			    p_jinfo_ac_dhuff_tbl_ml[0],
+			    &p_jinfo_ac_dhuff_tbl_maxcode[0][0],
+			    &p_jinfo_ac_dhuff_tbl_mincode[0][0],
+			    &p_jinfo_ac_dhuff_tbl_valptr[0][0]);
+  p_jinfo_ac_dhuff_tbl_ml[0] = tmp;
+  tmp = huff_make_dhuff_tb (&p_jinfo_ac_xhuff_tbl_bits[1][0],
+			    p_jinfo_ac_dhuff_tbl_ml[1],
+			    &p_jinfo_ac_dhuff_tbl_maxcode[1][0],
+			    &p_jinfo_ac_dhuff_tbl_mincode[1][0],
+			    &p_jinfo_ac_dhuff_tbl_valptr[1][0]);
+  p_jinfo_ac_dhuff_tbl_ml[1] = tmp;
+}
+
+
+
+void
+jpeg_read (unsigned char *read_buf)
+{
+
+  /*
+   * Read markers
+   */
+  read_markers (read_buf);
+
+
+  /*
+   * Initialize the information used for decoding
+   */
+  jpeg_init_decompress ();
+
+  /*
+   * Start decoding
+   */
+  decode_start (&OutData_image_width, &OutData_image_height,
+		&OutData_comp_vpos[0], &OutData_comp_hpos[0]);
+
+}
-- 
cgit