vararg.h

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/* Simple Plugin API
 *
 * Copyright © 2019 Wim Taymans
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
 
#ifndef SPA_POD_VARARG_H
#define SPA_POD_VARARG_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdarg.h>
 
#include <spa/pod/pod.h>
 
#define SPA_POD_Prop(key,...)                           \
        key, ##__VA_ARGS__
 
#define SPA_POD_Control(offset,type,...)                \
        offset, type, ##__VA_ARGS__
 
#define SPA_CHOICE_RANGE(def,min,max)                   3,(def),(min),(max)
#define SPA_CHOICE_STEP(def,min,max,step)               4,(def),(min),(max),(step)
#define SPA_CHOICE_ENUM(n_vals,...)                     (n_vals),##__VA_ARGS__
#define SPA_CHOICE_FLAGS(flags)                         1, (flags)
#define SPA_CHOICE_BOOL(def)                            3,(def),(def),!(def)
 
#define SPA_POD_Bool(val)                               "b", val
#define SPA_POD_CHOICE_Bool(def)                        "?eb", SPA_CHOICE_BOOL(def)
 
#define SPA_POD_Id(val)                                 "I", val
#define SPA_POD_CHOICE_ENUM_Id(n_vals,...)              "?eI", SPA_CHOICE_ENUM(n_vals, __VA_ARGS__)
 
#define SPA_POD_Int(val)                                "i", val
#define SPA_POD_CHOICE_ENUM_Int(n_vals,...)             "?ei", SPA_CHOICE_ENUM(n_vals, __VA_ARGS__)
#define SPA_POD_CHOICE_RANGE_Int(def,min,max)           "?ri", SPA_CHOICE_RANGE(def, min, max)
#define SPA_POD_CHOICE_STEP_Int(def,min,max,step)       "?si", SPA_CHOICE_STEP(def, min, max, step)
#define SPA_POD_CHOICE_FLAGS_Int(flags)                 "?fi", SPA_CHOICE_FLAGS(flags)
 
#define SPA_POD_Long(val)                               "l", val
#define SPA_POD_CHOICE_ENUM_Long(n_vals,...)            "?el", SPA_CHOICE_ENUM(n_vals, __VA_ARGS__)
#define SPA_POD_CHOICE_RANGE_Long(def,min,max)          "?rl", SPA_CHOICE_RANGE(def, min, max)
#define SPA_POD_CHOICE_STEP_Long(def,min,max,step)      "?sl", SPA_CHOICE_STEP(def, min, max, step)
#define SPA_POD_CHOICE_FLAGS_Long(flags)                "?fl", SPA_CHOICE_FLAGS(flags)
 
#define SPA_POD_Float(val)                              "f", val
#define SPA_POD_CHOICE_ENUM_Float(n_vals,...)           "?ef", SPA_CHOICE_ENUM(n_vals, __VA_ARGS__)
#define SPA_POD_CHOICE_RANGE_Float(def,min,max)         "?rf", SPA_CHOICE_RANGE(def, min, max)
#define SPA_POD_CHOICE_STEP_Float(def,min,max,step)     "?sf", SPA_CHOICE_STEP(def, min, max, step)
 
#define SPA_POD_Double(val)                             "d", val
#define SPA_POD_CHOICE_ENUM_Double(n_vals,...)          "?ed", SPA_CHOICE_ENUM(n_vals, __VA_ARGS__)
#define SPA_POD_CHOICE_RANGE_Double(def,min,max)        "?rd", SPA_CHOICE_RANGE(def, min, max)
#define SPA_POD_CHOICE_STEP_Double(def,min,max,step)    "?sd", SPA_CHOICE_STEP(def, min, max, step)
 
#define SPA_POD_String(val)                             "s",val
#define SPA_POD_Stringn(val,len)                        "S",val,len
 
#define SPA_POD_Bytes(val,len)                          "y",val,len
 
#define SPA_POD_Rectangle(val)                          "R",val
#define SPA_POD_CHOICE_ENUM_Rectangle(n_vals,...)       "?eR", SPA_CHOICE_ENUM(n_vals, __VA_ARGS__)
#define SPA_POD_CHOICE_RANGE_Rectangle(def,min,max)     "?rR", SPA_CHOICE_RANGE((def),(min),(max))
#define SPA_POD_CHOICE_STEP_Rectangle(def,min,max,step) "?sR", SPA_CHOICE_STEP((def),(min),(max),(step))
 
#define SPA_POD_Fraction(val)                           "F",val
#define SPA_POD_CHOICE_ENUM_Fraction(n_vals,...)        "?eF", SPA_CHOICE_ENUM(n_vals, __VA_ARGS__)
#define SPA_POD_CHOICE_RANGE_Fraction(def,min,max)      "?rF", SPA_CHOICE_RANGE((def),(min),(max))
#define SPA_POD_CHOICE_STEP_Fraction(def,min,max,step)  "?sF", SPA_CHOICE_STEP(def, min, max, step)
 
#define SPA_POD_Array(csize,ctype,n_vals,vals)          "a", csize,ctype,n_vals,vals
#define SPA_POD_Pointer(type,val)                       "p", type,val
#define SPA_POD_Fd(val)                                 "h", val
#define SPA_POD_None()                                  "P", NULL
#define SPA_POD_Pod(val)                                "P", val
#define SPA_POD_PodObject(val)                          "O", val
#define SPA_POD_PodStruct(val)                          "T", val
#define SPA_POD_PodChoice(val)                          "V", val
 
#ifdef __cplusplus
}  /* extern "C" */
#endif
 
#endif /* SPA_POD_VARARG_H */