Start of new option system

First part of option restructuring. The aim is to move option values
from a huge number of separate globals to a single non-global struct.

This part adds some support for parsing option values into such struct
instances, and moves one example option (fixed-vo) to the struct.

Makefile

@@ -18,6 +18,7 @@ LDFLAGS_MENCODER = $(EXTRALIBS_MENCODER) \
 SRCS_COMMON = asxparser.c \
               codec-cfg.c \
               cpudetect.c \
+              defaultopts.c \
               edl.c \
               find_sub.c \
               get_path.c \

cfg-mplayer.h

@@ -5,7 +5,10 @@
  * config for cfgparser
  */
 
+#include <stddef.h>
+
 #include "cfg-common.h"
+#include "options.h"
 
 extern int key_fifo_size;
 extern unsigned doubleclick_time;
@@ -84,6 +87,9 @@ const m_option_t tvscan_conf[]={
  * by Folke
  */
 
+#define FLAG_ON(optname, varname, flags) {optname, NULL, CONF_TYPE_FLAG, flags, 0, 1, NULL, 1, offsetof(struct MPOpts, varname)}
+#define FLAG_OFF(optname, varname, flags) {optname, NULL, CONF_TYPE_FLAG, flags, 1, 0, NULL, 1, offsetof(struct MPOpts, varname)}
+
 const m_option_t mplayer_opts[]={
 	/* name, pointer, type, flags, min, max */
 
@@ -92,8 +98,8 @@ const m_option_t mplayer_opts[]={
             CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL},
 	{"vo", &video_driver_list, CONF_TYPE_STRING_LIST, 0, 0, 0, NULL},
 	{"ao", &audio_driver_list, CONF_TYPE_STRING_LIST, 0, 0, 0, NULL},
-	{"fixed-vo", &fixed_vo, CONF_TYPE_FLAG,CONF_GLOBAL , 0, 1, NULL},
-	{"nofixed-vo", &fixed_vo, CONF_TYPE_FLAG,CONF_GLOBAL, 1, 0, NULL},
+        FLAG_ON("fixed-vo", fixed_vo, CONF_GLOBAL),
+        FLAG_OFF("nofixed-vo", fixed_vo, CONF_GLOBAL),
 	{"ontop", &vo_ontop, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 	{"noontop", &vo_ontop, CONF_TYPE_FLAG, 0, 1, 0, NULL},
 	{"rootwin", &vo_rootwin, CONF_TYPE_FLAG, 0, 0, 1, NULL},

command.c

@@ -903,7 +903,7 @@ static int mp_property_video(m_option_t * prop, int action, void *arg,
 	    || (video_id > -1 && mpctx->demuxer->video->id != current_id
 		&& current_id != -2))
 	    uninit_player(INITIALIZED_VCODEC |
-			  (fixed_vo && video_id != -2 ? 0 : INITIALIZED_VO));
+                          (mpctx->opts.fixed_vo && video_id != -2 ? 0 : INITIALIZED_VO));
 	if (video_id > -1 && mpctx->demuxer->video->id != current_id) {
 	    sh_video_t *sh2;
 	    sh2 = mpctx->demuxer->v_streams[mpctx->demuxer->video->id];

defaultopts.c

@@ -0,0 +1,9 @@
+#include "defaultopts.h"
+#include "options.h"
+
+void set_default_mplayer_options(struct MPOpts *opts)
+{
+    *opts = (const struct MPOpts){
+        .fixed_vo = 0,
+    };
+}

defaultopts.h

@@ -0,0 +1,2 @@
+struct MPOpts;
+void set_default_mplayer_options(struct MPOpts *opts);

m_config.c

@@ -34,8 +34,28 @@ m_config_add_option(m_config_t *config, const m_option_t *arg, const char* prefi
 static int
 list_options(m_option_t *opt, char* name, char *param);
 
+static void m_option_save(const m_config_t *config, const m_option_t *opt,
+                          void *dst)
+{
+    if (opt->type->save) {
+        void *src = opt->new ? (char*)config->optstruct + opt->offset : opt->p;
+        opt->type->save(opt, dst, src);
+    }
+}
+
+static void m_option_set(const m_config_t *config, const m_option_t *opt,
+			 void *src)
+{
+    if (opt->type->set) {
+        void *dst = opt->new ? (char*)config->optstruct + opt->offset : opt->p;
+        opt->type->set(opt, dst, src);
+    }
+}
+
+
+
 m_config_t*
-m_config_new(void) {
+m_config_new(void *optstruct) {
   m_config_t* config;
   static int initialized = 0;
   static m_option_type_t profile_opt_type;
@@ -60,7 +80,8 @@ m_config_new(void) {
   for(i = 0 ; config->self_opts[i].name ; i++)
     config->self_opts[i].priv = config;
   m_config_register_options(config,config->self_opts);
-
+  config->optstruct = optstruct;
+
   return config;
 }
 
@@ -130,7 +151,7 @@ m_config_push(m_config_t* config) {
       continue;
 
     // Update the current status
-    m_option_save(co->opt,co->slots->data,co->opt->p);
+    m_option_save(config, co->opt, co->slots->data);
 
     // Allocate a new slot    
     slot = calloc(1,sizeof(m_config_save_slot_t) + co->opt->type->size);
@@ -174,7 +195,7 @@ m_config_pop(m_config_t* config) {
       pop++;
     }
     if(pop) // We removed some ctx -> set the previous value
-      m_option_set(co->opt,co->opt->p,co->slots->data);
+      m_option_set(config, co->opt, co->slots->data);
   }
 
   config->lvl--;
@@ -214,9 +235,11 @@ m_config_add_option(m_config_t *config, const m_option_t *arg, const char* prefi
   } else {
     m_config_option_t *i;
     // Check if there is already an option pointing to this address
-    if(arg->p) {
+    if(arg->p || arg->new && arg->offset >= 0) {
       for(i = config->opts ; i ; i = i->next ) {
-	if(i->opt->p == arg->p) { // So we don't save the same vars more than 1 time
+        if (arg->new ? (i->opt->new && i->opt->offset == arg->offset)
+            : (!i->opt->new && i->opt->p == arg->p)) {
+          // So we don't save the same vars more than 1 time
 	  co->slots = i->slots;
 	  co->flags |= M_CFG_OPT_ALIAS;
 	  break;
@@ -226,12 +249,12 @@ m_config_add_option(m_config_t *config, const m_option_t *arg, const char* prefi
     if(!(co->flags & M_CFG_OPT_ALIAS)) {
     // Allocate a slot for the defaults
     sl = calloc(1,sizeof(m_config_save_slot_t) + arg->type->size);
-    m_option_save(arg,sl->data,(void**)arg->p);
+    m_option_save(config, arg, sl->data);
     // Hack to avoid too much trouble with dynamically allocated data :
     // We always use a dynamic version
     if((arg->type->flags & M_OPT_TYPE_DYNAMIC) && arg->p && (*(void**)arg->p)) {
       *(void**)arg->p = NULL;
-      m_option_set(arg,arg->p,sl->data);
+      m_option_set(config, arg, sl->data);
     }
     sl->lvl = 0;
     sl->prev = NULL;
@@ -355,7 +378,7 @@ m_config_parse_option(m_config_t *config, char* arg, char* param,int set) {
     return r;
   // Set the option
   if(set) {
-    m_option_set(co->opt,co->opt->p,co->slots->data);
+    m_option_set(config, co->opt, co->slots->data);
     co->flags |= M_CFG_OPT_SET;
   }
 

m_config.h

@@ -78,6 +78,8 @@ typedef struct m_config {
   int profile_depth;
   /// Options defined by the config itself.
   struct m_option* self_opts;
+
+  void *optstruct; // struct mpopts or other
 } m_config_t;
 
 /// \defgroup ConfigOptionFlags Config option flags
@@ -96,7 +98,7 @@ typedef struct m_config {
 /** \ingroup Config
  */
 m_config_t*
-m_config_new(void);
+m_config_new(void *optstruct);
 
 /// Free a config object.
 void

m_option.h

@@ -282,6 +282,10 @@ struct m_option {
    *  Passing a 'default func' is still valid for all func based option types.
    */
   void* priv;
+
+  int new;
+
+  int offset;
 };
 
 
@@ -476,20 +480,6 @@ m_option_print(const m_option_t* opt, const void* val_ptr) {
     return (char*)-1;
 }
 
-/// Helper around \ref m_option_type::save.
-inline static  void
-m_option_save(const m_option_t* opt,void* dst, void* src) {
-  if(opt->type->save)
-    opt->type->save(opt,dst,src);
-}
-
-/// Helper around \ref m_option_type::set.
-inline static  void
-m_option_set(const m_option_t* opt,void* dst, void* src) {
-  if(opt->type->set)
-    opt->type->set(opt,dst,src);
-}
-
 /// Helper around \ref m_option_type::copy.
 inline  static void
 m_option_copy(const m_option_t* opt,void* dst, void* src) {

mencoder.c

@@ -90,6 +90,10 @@
 #endif
 
 #include "libmpcodecs/ae.h"
+#include "options.h"
+
+MPOpts opts;
+
 int vo_doublebuffering=0;
 int vo_directrendering=0;
 int vo_config_count=1;
@@ -420,7 +424,7 @@ user_correct_pts = 0;
   mp_msg_init();
 
   // Create the config context and register the options
-  mconfig = m_config_new();
+  mconfig = m_config_new(&opts);
   m_config_register_options(mconfig,mencoder_opts);
 
   // Preparse the command line

mp_core.h

@@ -1,6 +1,7 @@
 #ifndef MPLAYER_MP_CORE_H
 #define MPLAYER_MP_CORE_H
 
+#include "options.h"
 #include "mp_osd.h"
 #include "libao2/audio_out.h"
 #include "playtree.h"
@@ -42,6 +43,7 @@
 
 
 typedef struct MPContext {
+    struct MPOpts opts;
     int osd_show_percentage;
     int osd_function;
     const ao_functions_t *audio_out;
@@ -114,7 +116,6 @@ extern FILE *edl_fd;
 extern int file_filter;
 // These appear in options list
 extern float playback_speed;
-extern int fixed_vo;
 extern int forced_subs_only;
 
 

mplayer.c

@@ -180,6 +180,8 @@ static int max_framesize=0;
 #include "mixer.h"
 
 #include "mp_core.h"
+#include "options.h"
+#include "defaultopts.h"
 
 //**************************************************************************//
 //**************************************************************************//
@@ -205,8 +207,6 @@ static MPContext mpctx_s = {
 
 static MPContext *mpctx = &mpctx_s;
 
-int fixed_vo=0;
-
 // benchmark:
 double video_time_usage=0;
 double vout_time_usage=0;
@@ -2136,10 +2136,11 @@ static int sleep_until_update(float *time_frame, float *aq_sleep_time)
 }
 
 int reinit_video_chain(void) {
+    MPOpts *opts = &mpctx->opts;
     sh_video_t * const sh_video = mpctx->sh_video;
     double ar=-1.0;
     //================== Init VIDEO (codec & libvo) ==========================
-    if(!fixed_vo || !(initialized_flags&INITIALIZED_VO)){
+    if(opts->fixed_vo || !(initialized_flags&INITIALIZED_VO)){
     current_module="preinit_libvo";
 
     //shouldn't we set dvideo->id=-2 when we fail?
@@ -2209,7 +2210,7 @@ int reinit_video_chain(void) {
   mp_msg(MSGT_CPLAYER,MSGL_INFO,"==========================================================================\n");
 
   if(!sh_video->initialized){
-    if(!fixed_vo) uninit_player(INITIALIZED_VO);
+    if(!opts->fixed_vo) uninit_player(INITIALIZED_VO);
     goto err_out;
   }
 
@@ -2563,8 +2564,10 @@ int gui_no_filename=0;
 
   mp_msg_init();
 
+  MPOpts *opts = &mpctx->opts;
+  set_default_mplayer_options(opts);
   // Create the config context and register the options
-  mconfig = m_config_new();
+  mconfig = m_config_new(opts);
   m_config_register_options(mconfig,mplayer_opts);
   mp_input_register_options(mconfig);
 
@@ -3921,7 +3924,7 @@ mp_msg(MSGT_GLOBAL,MSGL_V,"EOF code: %d  \n",mpctx->eof);
 if(mpctx->dvbin_reopen)
 {
   mpctx->eof = 0;
-  uninit_player(INITIALIZED_ALL-(INITIALIZED_GUI|INITIALIZED_STREAM|INITIALIZED_INPUT|INITIALIZED_GETCH2|(fixed_vo?INITIALIZED_VO:0)));
+  uninit_player(INITIALIZED_ALL-(INITIALIZED_GUI|INITIALIZED_STREAM|INITIALIZED_INPUT|INITIALIZED_GETCH2|(opts->fixed_vo?INITIALIZED_VO:0)));
   cache_uninit(mpctx->stream);
   mpctx->dvbin_reopen = 0;
   goto goto_enable_cache;
@@ -3959,7 +3962,7 @@ if(benchmark){
 }
 
 // time to uninit all, except global stuff:
-uninit_player(INITIALIZED_ALL-(INITIALIZED_GUI+INITIALIZED_INPUT+(fixed_vo?INITIALIZED_VO:0)));
+uninit_player(INITIALIZED_ALL-(INITIALIZED_GUI+INITIALIZED_INPUT+(opts->fixed_vo?INITIALIZED_VO:0)));
 
 if(mpctx->set_of_sub_size > 0) {
     current_module="sub_free";

options.h

@@ -0,0 +1,8 @@
+#ifndef MPLAYER_OPTIONS_H
+#define MPLAYER_OPTIONS_H
+
+typedef struct MPOpts {
+    int fixed_vo;
+} MPOpts;
+
+#endif