mirror of
https://git.code.sf.net/p/quake/quakeforge
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12c84046f3
This is an extremely extensive patch as it hits every cvar, and every usage of the cvars. Cvars no longer store the value they control, instead, they use a cexpr value object to reference the value and specify the value's type (currently, a null type is used for strings). Non-string cvars are passed through cexpr, allowing expressions in the cvars' settings. Also, cvars have returned to an enhanced version of the original (id quake) registration scheme. As a minor benefit, relevant code having direct access to the cvar-controlled variables is probably a slight optimization as it removed a pointer dereference, and the variables can be located for data locality. The static cvar descriptors are made private as an additional safety layer, though there's nothing stopping external modification via Cvar_FindVar (which is needed for adding listeners). While not used yet (partly due to working out the design), cvars can have a validation function. Registering a cvar allows a primary listener (and its data) to be specified: it will always be called first when the cvar is modified. The combination of proper listeners and direct access to the controlled variable greatly simplifies the more complex cvar interactions as much less null checking is required, and there's no need for one cvar's callback to call another's. nq-x11 is known to work at least well enough for the demos. More testing will come.
116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/*
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plugin.h
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QuakeForge plugin API structures and prototypes
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Copyright (C) 2001 Jeff Teunissen <deek@dusknet.dhs.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __QF_plugin_h
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#define __QF_plugin_h
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/** \defgroup plugin Plugins
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\ingroup utils
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*/
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///@{
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#define QFPLUGIN_VERSION "1.0"
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#include <QF/qtypes.h>
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#ifdef STATIC_PLUGINS
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#define PLUGIN_INFO(type,name) plugin_t *type##_##name##_PluginInfo (void); __attribute__((const)) plugin_t * type##_##name##_PluginInfo (void)
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#else
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#define PLUGIN_INFO(type,name) plugin_t *PluginInfo (void); __attribute__((visibility ("default"),const)) plugin_t *PluginInfo (void)
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#endif
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typedef enum {
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qfp_null = 0, // Not real
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qfp_input, // Input (pointing devices, joysticks, etc)
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qfp_cd, // CD Audio
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qfp_console, // Console `driver'
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qfp_snd_output, // Sound output (OSS, ALSA, Win32)
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qfp_snd_render, // Sound mixing
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qfp_vid_render, // Video renderer
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} plugin_type_t;
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typedef struct plugin_funcs_s {
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struct general_funcs_s *general;
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struct input_funcs_s *input;
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struct cd_funcs_s *cd;
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struct console_funcs_s *console;
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struct snd_output_funcs_s *snd_output;
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struct snd_render_funcs_s *snd_render;
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struct vid_render_funcs_s *vid_render;
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} plugin_funcs_t;
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typedef struct plugin_data_s {
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struct general_data_s *general;
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struct input_data_s *input;
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struct cd_data_s *cd;
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struct console_data_s *console;
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struct snd_output_data_s *snd_output;
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struct snd_render_data_s *snd_render;
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struct vid_render_data_s *vid_render;
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} plugin_data_t;
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typedef struct plugin_s {
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plugin_type_t type;
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void *handle;
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const char *api_version;
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const char *plugin_version;
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const char *description;
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const char *copyright;
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plugin_funcs_t *functions;
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plugin_data_t *data;
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const char *full_name;
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} plugin_t;
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/*
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General plugin info return function type
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*/
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typedef plugin_t *(*plugin_info_t) (void);
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typedef struct plugin_list_s {
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const char *name;
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plugin_info_t info;
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} plugin_list_t;
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/*
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Plugin system variables
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*/
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extern char *fs_pluginpath;
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/*
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Function prototypes
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*/
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plugin_t *PI_LoadPlugin (const char *, const char *);
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qboolean PI_UnloadPlugin (plugin_t *);
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void PI_RegisterPlugins (plugin_list_t *);
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void PI_Init (void);
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void PI_Shutdown (void);
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// FIXME: we need a generic function to initialize unused fields
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///@}
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#endif//__QF_plugin_h
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