A struct setter. It allow you to setup struct from some user

settings.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8170 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 119 insertions, 0 deletions

diff --git a/m_struct.c b/m_struct.c
new file mode 100644
index 0000000000..d2c304e8b4
--- /dev/null
+++ b/m_struct.c
@@ -0,0 +1,119 @@
+
+#include "config.h"
+
+#ifdef NEW_CONFIG
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "m_option.h"
+#include "m_struct.h"
+#include "mp_msg.h"
+
+m_option_t*
+m_struct_get_field(m_struct_t* st,char* f) {
+  int i;
+
+  for(i = 0 ; st->fields[i].name ; i++) {
+    if(strcasecmp(st->fields[i].name,f) == 0)
+      return &st->fields[i];
+  }
+  return NULL;
+}
+
+void*
+m_struct_alloc(m_struct_t* st) {
+  int i;
+  void* r;
+
+  if(!st->defaults) {
+    mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s need defaults\n");
+    return NULL;
+  }
+  // Check the struct fields
+  for(i = 0 ; st->fields[i].name ; i++) {
+    if(st->fields[i].type->flags & M_OPT_TYPE_INDIRECT) {
+      mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s->%s: option type with the indirect flag are forbiden\n",st->name,st->fields[i].name);
+      return NULL;
+    }
+  }
+
+  r = calloc(1,st->size);
+  memcpy(r,st->defaults,st->size);
+ 
+  for(i = 0 ; st->fields[i].name ; i++) {
+    if(st->fields[i].type->flags & M_OPT_TYPE_DYNAMIC)
+      memset(M_ST_MB_P(r,st->fields[i].p),0,st->fields[i].type->size);
+    m_option_copy(&st->fields[i],M_ST_MB_P(r,st->fields[i].p),M_ST_MB_P(st->defaults,st->fields[i].p));
+  }
+  return r;
+}
+
+int
+m_struct_set(m_struct_t* st, void* obj, char* field, char* param) {
+  m_option_t* f = m_struct_get_field(st,field);
+
+  if(!f) {
+    mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s doesn't have any %s field\n",
+	   st->name,field);
+    return 0;
+  } 
+
+  if(f->type->parse(f,field,param,M_ST_MB_P(obj,f->p),M_CONFIG_FILE) < 0) {
+    mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Strut %s, field %s parsing error: %s\n",
+	   st->name,field,param);
+    return 0;
+  }
+  
+  return 1;
+}
+
+void
+m_struct_reset(m_struct_t* st, void* obj, char* field) {
+  m_option_t* f;
+
+  if(!field) { // Reset all options
+    int i;
+    for(i = 0 ; st->fields[i].name ; i++)
+      m_option_copy(&st->fields[i],M_ST_MB_P(obj,st->fields[i].p),M_ST_MB_P(st->defaults,st->fields[i].p));
+    return;
+  }
+
+  // Only one
+  f = m_struct_get_field(st,field);
+  if(!f) {    
+    mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s doesn't have any %s field\n",
+	   st->name,field);
+    return;
+  }
+  m_option_copy(f,M_ST_MB_P(obj,f->p),M_ST_MB_P(st->defaults,f->p));
+}
+
+/// Free an allocated struct
+void
+m_struct_free(m_struct_t* st, void* obj) {
+  int i;
+
+  for(i = 0 ; st->fields[i].name ; i++)
+    m_option_free(&st->fields[i],M_ST_MB_P(obj,st->fields[i].p));
+  free(obj);
+}
+
+void*
+m_struct_copy(m_struct_t* st, void* obj) {
+  void* r = malloc(st->size);
+  int i;
+  
+  memcpy(r,obj,st->size);
+  for(i = 0 ; st->fields[i].name ; i++) {
+    if(st->fields[i].type->flags & M_OPT_TYPE_DYNAMIC)
+      memset(M_ST_MB_P(r,st->fields[i].p),0,st->fields[i].type->size);
+    m_option_copy(&st->fields[i],M_ST_MB_P(r,st->fields[i].p),M_ST_MB_P(obj,st->fields[i].p));
+  }
+
+  return r;
+}
+  
+
+
+#endif // NEW_CONFIG