add ffmpeg filters as plugins

[goodguy/history.git] / cinelerra-5.0 / guicast / bchash.C

diff --git a/cinelerra-5.0/guicast/bchash.C b/cinelerra-5.0/guicast/bchash.C
index 835f3db3d7c3cde5766ec0a610a213cb13f34d00..180c70de7897c8c9074845fd5ec96f4886270eac 100644 (file)
--- a/cinelerra-5.0/guicast/bchash.C
+++ b/cinelerra-5.0/guicast/bchash.C
@@ -27,7 +27,6 @@
 #include "bcsignals.h"
 #include "filesystem.h"
 #include "format.inc"
-#include "stringfile.h"
 
 BC_Hash::BC_Hash()
 {
@@ -49,16 +48,21 @@ BC_Hash::BC_Hash(const char *filename)
        FileSystem directory;
 
        directory.parse_tildas(this->filename);
-       total = 0;
 }
 
-BC_Hash::~BC_Hash()
+void BC_Hash::clear()
 {
        for(int i = 0; i < total; i++)
        {
                delete [] names[i];
                delete [] values[i];
        }
+       total = 0;
+}
+
+BC_Hash::~BC_Hash()
+{
+       clear();
        delete [] names;
        delete [] values;
 }
@@ -86,60 +90,103 @@ void BC_Hash::reallocate_table(int new_total)
        }
 }
 
-int BC_Hash::load()
+int BC_Hash::load_file(FILE *fp)
 {
-       StringFile stringfile(filename);
-       load_stringfile(&stringfile);
-       return 0;
-}
-
-void BC_Hash::load_stringfile(StringFile *file)
-{
-       char arg1[1024], arg2[1024];
+       char line[4096];
+       int done = 0, ch = -1;
        total = 0;
-       while(file->get_pointer() < file->get_length())
-       {
-               file->readline(arg1, arg2);
+
+       while( !done ) {
+               char *bp = line, *ep = bp + sizeof(line);
+               if( !fgets(bp, ep-bp, fp) ) break;
+               // skip ws (indent)
+               while( bp < ep && *bp == ' ' ) ++bp;
+               if( bp >= ep || !*bp || *bp == '\n' ) continue;
+               char *title = bp;
+               // span to ws
+               while( bp < ep && *bp && *bp != ' ' && *bp != '\n' ) ++bp;
+               if( bp >= ep || title == bp ) continue;
+               int title_len = bp - title;
+               // skip blank seperator
+               if( *bp++ != ' ' ) continue;
                reallocate_table(total + 1);
-               names[total] = new char[strlen(arg1) + 1];
-               values[total] = new char[strlen(arg2) + 1];
-               strcpy(names[total], arg1);
-               strcpy(values[total], arg2);
+               char *tp = new char[title_len + 1];
+               names[total] = tp;
+               while( --title_len >= 0 ) *tp++ = *title++;
+               *tp = 0;
+               // accumulate value (+ continued lines)
+               char *value = bp;
+               while( bp < ep && !done ) {
+                       while( bp < ep && *bp && *bp != '\n' ) ++bp;
+                       if( bp >= ep || !*bp ) break;
+                       if( (ch=fgetc(fp)) < 0 ) break;
+                       if( ch != '+' ) { ungetc(ch, fp); break; }
+                       *bp++ = '\n';
+                       done = !fgets(bp, ep-bp, fp);
+               }
+               int value_len = bp - value;
+               char *vp = new char[value_len + 1];
+               values[total] = vp;
+               while( --value_len >= 0 ) *vp++ = *value++;
+               *vp = 0;
                total++;
        }
+       return 0;
 }
 
-void BC_Hash::save_stringfile(StringFile *file)
+int BC_Hash::load()
 {
-       for(int i = 0; i < total; i++)
-       {
-               file->writeline(names[i], values[i], 0);
-       }
+       FILE *fp = fopen(filename, "r");
+       if( !fp ) return 1;
+       int ret = load_file(fp);
+       fclose(fp);
+       return ret;
 }
 
-int BC_Hash::save()
+int BC_Hash::save_file(FILE *fp)
 {
-       StringFile stringfile;
-       save_stringfile(&stringfile);
-       stringfile.write_to_file(filename);
+       for(int i = 0; i < total; i++) {
+               fputs(names[i], fp);
+               char *vp = values[i];
+               char *bp = vp;
+               fputc(' ',fp);
+               while( (vp=strchr(vp, '\n')) ) {
+                       while( bp < vp ) fputc(*bp++,fp);
+                       fputc('\n',fp);  fputc('+',fp);
+                       ++bp;  ++vp;
+               }
+               while( *bp ) fputc(*bp++,fp);
+               fputc('\n', fp);
+        }
        return 0;
 }
 
-int BC_Hash::load_string(const char *string)
+int BC_Hash::save()
 {
-       StringFile stringfile;
-       stringfile.read_from_string(string);
-       load_stringfile(&stringfile);
-       return 0;
+       FILE *fp = fopen(filename,"w");
+       if( !fp ) return 1;
+       int ret = save_file(fp);
+       fclose(fp);
+       return ret;
 }
 
-int BC_Hash::save_string(char* &string)
+int BC_Hash::load_string(const char *bfr)
 {
-       StringFile stringfile;
-       save_stringfile(&stringfile);
-       string = new char[stringfile.get_length() + 1];
-       memcpy(string, stringfile.string, stringfile.get_length() + 1);
-       return 0;
+       FILE *fp = fmemopen((void*)bfr, strlen(bfr), "r");
+       if( !fp ) return 1;
+       int ret = load_file(fp);
+       fclose(fp);
+       return ret;
+}
+
+int BC_Hash::save_string(char *&bfr)
+{
+       size_t bsz = 0;
+       FILE *fp = open_memstream(&bfr, &bsz);
+       if( !fp ) return 1;
+       int ret = save_file(fp);
+       fclose(fp);
+       return ret;
 }
 
 
@@ -275,19 +322,8 @@ varFn(int,update,const char *)     varFn(char *,get,char *)
 void BC_Hash::copy_from(BC_Hash *src)
 {
 // Can't delete because this is used by file decoders after plugins
-// request data.
-//     for(int i = 0; i < total; i++)
-//     {
-//             delete [] names[i];
-//             delete [] values[i];
-//     }
-//     delete [] names;
-//     delete [] values;
-//
-//     allocated = 0;
-//     names = 0;
-//     values = 0;
-//     total = 0;
+// request data.  use explicit destructor to clear/clean
+//     this->~BC_Hash();
 
 SET_TRACE
        reallocate_table(src->total);