From 25296b31e8e26baea90fe5d3eef952f9e36f5d74 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Sun, 15 May 2016 18:22:19 +0000
Subject: [PATCH] Added a small fix in trisurf

---
 src/snapshot.c |   98 +++++++++++++++++++++++++++++-------------------
 1 files changed, 59 insertions(+), 39 deletions(-)

diff --git a/src/snapshot.c b/src/snapshot.c
index a39ff87..370ce4c 100644
--- a/src/snapshot.c
+++ b/src/snapshot.c
@@ -1,3 +1,5 @@
+/* vim: set ts=4 sts=4 sw=4 noet : */
+/* vim: set ts=4 sts=4 sw=4 noet : */	
 #include<stdio.h>
 #include<general.h>
 #include<snapshot.h>
@@ -5,7 +7,10 @@
 #include<stdarg.h>
 #include <zlib.h>
 #include<inttypes.h>
-
+#include<config.h>
+#include <time.h>
+#include "io.h"
+/* a helper function that utilizes ts_string data structure and performs same as sprintf */
 ts_uint ts_sprintf(ts_string *str, char *fmt, ...){
 	va_list ap;
 	va_start(ap,fmt);
@@ -15,7 +20,7 @@
 	return n;
 }
 
-
+/* outputs additional data into paraview xml file */
 ts_bool xml_trisurf_data(FILE *fh, ts_vesicle *vesicle){
 
 	ts_string *data=(ts_string *)malloc(sizeof(ts_sprintf));
@@ -35,20 +40,38 @@
 #else
 	fprintf(fh,"%s", data->string);
 #endif
-	free(data->string);
+	free(data->string);  /* TODO: valgrind is not ok with this! */
 	free(data);
 	xml_trisurf_footer(fh);
 	return TS_SUCCESS;
 }
 
 ts_bool xml_trisurf_header(FILE *fh, ts_vesicle *vesicle){
-	fprintf(fh, "<trisurfversion></trisurfversion>\n");
-	fprintf(fh, "<trisurfdate></trisurfdate>\n");
-	fprintf(fh, "<dumpdate></dumpdate>\n");
+/* format current time */
+	time_t current_time;
+    	char *c_time_string;
+	current_time = time(NULL);
+	c_time_string = ctime(&current_time);
+	int npoly, nfono;	
+
+	fprintf(fh, "<trisurfversion>Trisurf (commit %s), compiled on %s %s</trisurfversion>\n",TS_VERSION, __DATE__,  __TIME__);
+	fprintf(fh, "<dumpdate>%s</dumpdate>\n", c_time_string);
+
 	fprintf(fh, "<tape>\n");
-	
+		fprintf(fh,"%s",tapetxt);	
 	fprintf(fh, "</tape>\n");
-	fprintf(fh, "<trisurf nvtx=\"%u\" npoly=\"%u\" nfono=\"%u\">\n", vesicle->vlist->n, vesicle->poly_list->n, vesicle->poly_list->poly[0]->vlist->n);
+	if(vesicle->poly_list!=NULL){
+		npoly=vesicle->poly_list->n;
+		if(npoly!=0){
+			nfono=vesicle->poly_list->poly[0]->vlist->n;
+		} else {
+			nfono=0;
+		}
+	} else {
+		npoly=0;
+		nfono=0;
+	}
+	fprintf(fh, "<trisurf nvtx=\"%u\" npoly=\"%u\" nmono=\"%u\" compressed=\"false\">\n", vesicle->vlist->n, npoly, nfono);
 	return TS_SUCCESS;
 }
 
@@ -61,7 +84,7 @@
 	ts_uint i;
 	ts_sprintf(data,"<tria>");
 	for(i=0; i<tlist->n;i++){
-		ts_sprintf(data,"%u %u %u",tlist->tria[i]->vertex[0]->idx, tlist->tria[i]->vertex[1]->idx, tlist->tria[i]->vertex[2]->idx);
+		ts_sprintf(data,"%u %u %u ",tlist->tria[i]->vertex[0]->idx, tlist->tria[i]->vertex[1]->idx, tlist->tria[i]->vertex[2]->idx);
 	}
 	ts_sprintf(data,"</tria>");
 	return TS_SUCCESS;
@@ -71,7 +94,7 @@
 	ts_uint i;
 	ts_sprintf(data,"<trianeigh>\n");
 	for(i=0; i<tlist->n;i++){
-		ts_sprintf(data,"%u %u %u",tlist->tria[i]->neigh[0]->idx, tlist->tria[i]->neigh[1]->idx, tlist->tria[i]->neigh[2]->idx);
+		ts_sprintf(data,"%u %u %u ",tlist->tria[i]->neigh[0]->idx, tlist->tria[i]->neigh[1]->idx, tlist->tria[i]->neigh[2]->idx);
 	}
 	ts_sprintf(data,"</trianeigh>\n");
 	return TS_SUCCESS;
@@ -108,6 +131,7 @@
 
 /* zlib compression base64 encoded */
 /* compressed must not be pre-malloced */
+/* taken from https://gist.github.com/arq5x/5315739 */
 ts_uint ts_compress_string64(char *data, ts_uint data_len, char **compressed){
 	z_stream defstream;
 	defstream.zalloc = Z_NULL;
@@ -129,6 +153,10 @@
 	return nbase;
 }
 
+ts_uint ts_decompress_string64(char *b64, ts_uint data_len, char **decompressed){
+return TS_SUCCESS;
+
+}
 
 /* base64 encoding, taken from http://stackoverflow.com/questions/342409/how-do-i-base64-encode-decode-in-c */
 static char encoding_table[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
@@ -143,10 +171,7 @@
 static int mod_table[] = {0, 2, 1};
 
 
-char *base64_encode(const unsigned char *data,
-                    size_t input_length,
-                    size_t *output_length) {
-
+char *base64_encode(const unsigned char *data, size_t input_length, size_t *output_length) {
 	*output_length = 4 * ((input_length + 2) / 3);
 	int i,j;
 	char *encoded_data = malloc(*output_length);
@@ -154,29 +179,25 @@
 	
 	for (i = 0, j = 0; i < input_length;) {
 
-        	uint32_t octet_a = i < input_length ? (unsigned char)data[i++] : 0;
-	        uint32_t octet_b = i < input_length ? (unsigned char)data[i++] : 0;
-        	uint32_t octet_c = i < input_length ? (unsigned char)data[i++] : 0;
+       	uint32_t octet_a = i < input_length ? (unsigned char)data[i++] : 0;
+        uint32_t octet_b = i < input_length ? (unsigned char)data[i++] : 0;
+       	uint32_t octet_c = i < input_length ? (unsigned char)data[i++] : 0;
+        uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
 
-	        uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
-
-        	encoded_data[j++] = encoding_table[(triple >> 3 * 6) & 0x3F];
-        	encoded_data[j++] = encoding_table[(triple >> 2 * 6) & 0x3F];
-        	encoded_data[j++] = encoding_table[(triple >> 1 * 6) & 0x3F];
-        	encoded_data[j++] = encoding_table[(triple >> 0 * 6) & 0x3F];
+       	encoded_data[j++] = encoding_table[(triple >> 3 * 6) & 0x3F];
+       	encoded_data[j++] = encoding_table[(triple >> 2 * 6) & 0x3F];
+       	encoded_data[j++] = encoding_table[(triple >> 1 * 6) & 0x3F];
+       	encoded_data[j++] = encoding_table[(triple >> 0 * 6) & 0x3F];
 	}
 
 	for (i = 0; i < mod_table[input_length % 3]; i++)
-        	encoded_data[*output_length - 1 - i] = '=';
+       	encoded_data[*output_length - 1 - i] = '=';
 
 	return encoded_data;
 }
 
 
-unsigned char *base64_decode(const char *data,
-                             size_t input_length,
-                             size_t *output_length) {
-
+unsigned char *base64_decode(const char *data, size_t input_length, size_t *output_length) {
 	int i,j;
 	if (decoding_table == NULL) build_decoding_table();
 
@@ -190,22 +211,21 @@
 	if (decoded_data == NULL) return NULL;
 
 	for (i = 0, j = 0; i < input_length;) {
+       	uint32_t sextet_a = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]];
+       	uint32_t sextet_b = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]];
+   		uint32_t sextet_c = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]];
+       	uint32_t sextet_d = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]];
 
-        	uint32_t sextet_a = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]];
-        	uint32_t sextet_b = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]];
-       		uint32_t sextet_c = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]];
-        	uint32_t sextet_d = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]];
-
-        	uint32_t triple = (sextet_a << 3 * 6)
+       	uint32_t triple = (sextet_a << 3 * 6)
         	+ (sextet_b << 2 * 6)
         	+ (sextet_c << 1 * 6)
         	+ (sextet_d << 0 * 6);
 
-        	if (j < *output_length) decoded_data[j++] = (triple >> 2 * 8) & 0xFF;
-        	if (j < *output_length) decoded_data[j++] = (triple >> 1 * 8) & 0xFF;
-        	if (j < *output_length) decoded_data[j++] = (triple >> 0 * 8) & 0xFF;
+       	if (j < *output_length) decoded_data[j++] = (triple >> 2 * 8) & 0xFF;
+       	if (j < *output_length) decoded_data[j++] = (triple >> 1 * 8) & 0xFF;
+       	if (j < *output_length) decoded_data[j++] = (triple >> 0 * 8) & 0xFF;
     }
-
+	if(decoding_table !=NULL) free(decoding_table);
     return decoded_data;
 }
 
@@ -215,7 +235,7 @@
     decoding_table = malloc(256);
 	int i;
     for (i = 0; i < 64; i++)
-        decoding_table[(unsigned char) encoding_table[i]] = i;
+		decoding_table[(unsigned char) encoding_table[i]] = i;
 }
 
 

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