SIDPlayer/src/prefs.cpp

/*
 *  prefs.cpp - Preferences handling
 *
 *  SIDPlayer (C) Copyright 1996-2000 Christian Bauer
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "sys.h"

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>

#include "prefs.h"


// List of preferences items
prefs_desc prefs_items[] = {
        {"victype", TYPE_STRING, false},                // Type number of VIC-II to emulate ("6569", "6567" or "6567R5")
        {"sidtype", TYPE_STRING, false},                // Type number of SID to emulate ("6581" or "8580")
        {"samplerate", TYPE_INT32, false},              // Audio sample rate in Hz
        {"audio16bit", TYPE_BOOLEAN, false},    // 16-bit audio output?
        {"stereo", TYPE_BOOLEAN, false},                // Stereo audio output?
        {"filters", TYPE_BOOLEAN, false},               // Emulate SID filters?
        {"dualsid", TYPE_BOOLEAN, false},               // Emulate 2 SID chips?
        {"audioeffect", TYPE_INT32, false},             // Audio effect type (0 = none, 1 = reverb, 2 = spatial)
        {"revdelay", TYPE_INT32, false},                // Reverb delay in ms
        {"revfeedback", TYPE_INT32, false},             // Reverb feedback (0..0x100 = 0..100%)
        {"volume", TYPE_INT32, false},                  // Master volume (0..0x100 = 0..100%)
        {"v1volume", TYPE_INT32, false},                // Volume voice 1 (0..0x100 = 0..100%)
        {"v2volume", TYPE_INT32, false},                // Volume voice 2 (0..0x100 = 0..100%)
        {"v3volume", TYPE_INT32, false},                // Volume voice 3 (0..0x100 = 0..100%)
        {"v4volume", TYPE_INT32, false},                // Volume sampled voice (0..0x100 = 0..100%)
        {"v1pan", TYPE_INT32, false},                   // Panning voice 1 (-0x100..0x100 = left..right)
        {"v2pan", TYPE_INT32, false},                   // Panning voice 2 (-0x100..0x100 = left..right)
        {"v3pan", TYPE_INT32, false},                   // Panning voice 3 (-0x100..0x100 = left..right)
        {"v4pan", TYPE_INT32, false},                   // Panning sampled voice (-0x100..0x100 = left..right)
        {"dualsep", TYPE_INT32, false},                 // Dual-SID stereo separation (0..0x100 = 0..100%)
        {"replayfreq", TYPE_INT32, false},              // Frequency at which 6510 replay routine is called in Hz
        {NULL, TYPE_END, false} // End of list
};


// Prefs item are stored in a linked list of these nodes
struct prefs_node {
        prefs_node *next;
        const char *name;
        prefs_type type;
        void *data;
        prefs_desc *desc;
};

// List of prefs nodes
static prefs_node *the_prefs;


/*
 *  Initialize preferences
 */

void PrefsInit(int argc, char **argv)
{
        // Start with empty list
        the_prefs = NULL;

        // Set defaults
        PrefsAddString("victype", "6569");
        PrefsAddString("sidtype", "6581");
        PrefsAddInt32("samplerate", 44100);
        PrefsAddBool("audio16bit", true);
        PrefsAddBool("stereo", true);
        PrefsAddBool("filters", true);
        PrefsAddBool("dualsid", false);
        PrefsAddInt32("audioeffect", 2);
        PrefsAddInt32("revdelay", 125);
        PrefsAddInt32("revfeedback", 0x50);
        PrefsAddInt32("volume", 0x100);
        PrefsAddInt32("v1volume", 0x100);
        PrefsAddInt32("v1pan", -0x40);
        PrefsAddInt32("v2volume", 0x100);
        PrefsAddInt32("v2pan", 0);
        PrefsAddInt32("v3volume", 0x100);
        PrefsAddInt32("v3pan", 0x40);
        PrefsAddInt32("v4volume", 0x100);
        PrefsAddInt32("v4pan", 0);
        PrefsAddInt32("dualsep", 0x80);
        PrefsAddInt32("replayfreq", 50);
}


/*
 *  Deinitialize preferences
 */

void PrefsExit(void)
{
        // Free prefs list
        prefs_node *p = the_prefs, *next;
        while (p) {
                next = p->next;
                free((void *)p->name);
                free(p->data);
                delete p;
                p = next;
        }
}


/*
 *  Find preferences descriptor by keyword
 */

static prefs_desc *find_prefs_desc(const char *name, prefs_desc *list)
{
        while (list->type != TYPE_ANY) {
                if (strcmp(list->name, name) == 0)
                        return list;
                list++;
        }
        return NULL;
}


/*
 *  Set prefs items
 */

static void add_data(const char *name, prefs_type type, void *data, int size)
{
        void *d = malloc(size);
        if (d == NULL)
                return;
        memcpy(d, data, size);
        prefs_node *p = new prefs_node;
        p->next = 0;
        p->name = strdup(name);
        p->type = type;
        p->data = d;
        p->desc = find_prefs_desc(p->name, prefs_items);
        if (the_prefs) {
                prefs_node *prev = the_prefs;
                while (prev->next)
                        prev = prev->next;
                prev->next = p;
        } else
                the_prefs = p;
}

void PrefsAddString(const char *name, const char *s)
{
        add_data(name, TYPE_STRING, (void *)s, strlen(s) + 1);
}

void PrefsAddBool(const char *name, bool b)
{
        add_data(name, TYPE_BOOLEAN, &b, sizeof(bool));
}

void PrefsAddInt32(const char *name, int32 val)
{
        add_data(name, TYPE_INT32, &val, sizeof(int32));
}


/*
 *  Replace prefs items
 */

static prefs_node *find_node(const char *name, prefs_type type, int index = 0)
{
        prefs_node *p = the_prefs;
        int i = 0;
        while (p) {
                if ((type == TYPE_ANY || p->type == type) && !strcmp(p->name, name)) {
                        if (i == index)
                                return p;
                        else
                                i++;
                }
                p = p->next;
        }
        return NULL;
}

void PrefsReplaceString(const char *name, const char *s, int index)
{
        prefs_node *p = find_node(name, TYPE_STRING, index);
        if (p) {
                if (p->desc && p->desc->func)
                        ((prefs_func_string)(p->desc->func))(name, (const char *)p->data, s);
                free(p->data);
                p->data = strdup(s);
        } else
                add_data(name, TYPE_STRING, (void *)s, strlen(s) + 1);
}

void PrefsReplaceBool(const char *name, bool b)
{
        prefs_node *p = find_node(name, TYPE_BOOLEAN);
        if (p) {
                if (p->desc && p->desc->func)
                        ((prefs_func_bool)(p->desc->func))(name, *(bool *)(p->data), b);
                *(bool *)(p->data) = b;
        } else
                add_data(name, TYPE_BOOLEAN, &b, sizeof(bool));
}

void PrefsReplaceInt32(const char *name, int32 val)
{
        prefs_node *p = find_node(name, TYPE_INT32);
        if (p) {
                if (p->desc && p->desc->func)
                        ((prefs_func_int32)(p->desc->func))(name, *(int32 *)(p->data), val);
                *(int32 *)(p->data) = val;
        } else
                add_data(name, TYPE_INT32, &val, sizeof(int32));
}


/*
 *  Get prefs items
 */

const char *PrefsFindString(const char *name, int index)
{
        prefs_node *p = find_node(name, TYPE_STRING, index);
        if (p)
                return (char *)(p->data);
        else
                return NULL;
}

bool PrefsFindBool(const char *name)
{
        prefs_node *p = find_node(name, TYPE_BOOLEAN, 0);
        if (p)
                return *(bool *)(p->data);
        else
                return false;
}

int32 PrefsFindInt32(const char *name)
{
        prefs_node *p = find_node(name, TYPE_INT32, 0);
        if (p)
                return *(int32 *)(p->data);
        else
                return 0;
}


/*
 *  Remove prefs items
 */

void PrefsRemoveItem(const char *name, int index)
{
        prefs_node *p = find_node(name, TYPE_ANY, index);
        if (p) {
                free((void *)p->name);
                free(p->data);
                prefs_node *q = the_prefs;
                if (q == p) {
                        the_prefs = NULL;
                        delete p;
                        return;
                }
                while (q) {
                        if (q->next == p) {
                                q->next = p->next;
                                delete p;
                                return;
                        }
                        q = q->next;
                }
        }
}


/*
 *  Set prefs change callback function
 */

static void set_callback(const char *name, prefs_func f)
{
        prefs_desc *d = find_prefs_desc(name, prefs_items);
        if (d == NULL)
                return;
        d->func = f;
}

void PrefsSetCallback(const char *name, prefs_func_string f)
{
        set_callback(name, (prefs_func)f);
}

void PrefsSetCallback(const char *name, prefs_func_bool f)
{
        set_callback(name, (prefs_func)f);
}

void PrefsSetCallback(const char *name, prefs_func_int32 f)
{
        set_callback(name, (prefs_func)f);
}
Revision:	1.1
Committed:	2000-07-28T12:42:30Z (24 years, 3 months ago) by cebix
Branch:	MAIN
Branch point for:	cebix
Log Message:	Initial revision
#	Content
1	/*
2	* prefs.cpp - Preferences handling
3	*
4	* SIDPlayer (C) Copyright 1996-2000 Christian Bauer
5	*
6	* This program is free software; you can redistribute it and/or modify
7	* it under the terms of the GNU General Public License as published by
8	* the Free Software Foundation; either version 2 of the License, or
9	* (at your option) any later version.
10	*
11	* This program is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with this program; if not, write to the Free Software
18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19	*/
20
21	#include "sys.h"
22
23	#include <string.h>
24	#include <stdlib.h>
25	#include <stdio.h>
26	#include <ctype.h>
27
28	#include "prefs.h"
29
30
31	// List of preferences items
32	prefs_desc prefs_items[] = {
33	{"victype", TYPE_STRING, false}, // Type number of VIC-II to emulate ("6569", "6567" or "6567R5")
34	{"sidtype", TYPE_STRING, false}, // Type number of SID to emulate ("6581" or "8580")
35	{"samplerate", TYPE_INT32, false}, // Audio sample rate in Hz
36	{"audio16bit", TYPE_BOOLEAN, false}, // 16-bit audio output?
37	{"stereo", TYPE_BOOLEAN, false}, // Stereo audio output?
38	{"filters", TYPE_BOOLEAN, false}, // Emulate SID filters?
39	{"dualsid", TYPE_BOOLEAN, false}, // Emulate 2 SID chips?
40	{"audioeffect", TYPE_INT32, false}, // Audio effect type (0 = none, 1 = reverb, 2 = spatial)
41	{"revdelay", TYPE_INT32, false}, // Reverb delay in ms
42	{"revfeedback", TYPE_INT32, false}, // Reverb feedback (0..0x100 = 0..100%)
43	{"volume", TYPE_INT32, false}, // Master volume (0..0x100 = 0..100%)
44	{"v1volume", TYPE_INT32, false}, // Volume voice 1 (0..0x100 = 0..100%)
45	{"v2volume", TYPE_INT32, false}, // Volume voice 2 (0..0x100 = 0..100%)
46	{"v3volume", TYPE_INT32, false}, // Volume voice 3 (0..0x100 = 0..100%)
47	{"v4volume", TYPE_INT32, false}, // Volume sampled voice (0..0x100 = 0..100%)
48	{"v1pan", TYPE_INT32, false}, // Panning voice 1 (-0x100..0x100 = left..right)
49	{"v2pan", TYPE_INT32, false}, // Panning voice 2 (-0x100..0x100 = left..right)
50	{"v3pan", TYPE_INT32, false}, // Panning voice 3 (-0x100..0x100 = left..right)
51	{"v4pan", TYPE_INT32, false}, // Panning sampled voice (-0x100..0x100 = left..right)
52	{"dualsep", TYPE_INT32, false}, // Dual-SID stereo separation (0..0x100 = 0..100%)
53	{"replayfreq", TYPE_INT32, false}, // Frequency at which 6510 replay routine is called in Hz
54	{NULL, TYPE_END, false} // End of list
55	};
56
57
58	// Prefs item are stored in a linked list of these nodes
59	struct prefs_node {
60	prefs_node *next;
61	const char *name;
62	prefs_type type;
63	void *data;
64	prefs_desc *desc;
65	};
66
67	// List of prefs nodes
68	static prefs_node *the_prefs;
69
70
71	/*
72	* Initialize preferences
73	*/
74
75	void PrefsInit(int argc, char **argv)
76	{
77	// Start with empty list
78	the_prefs = NULL;
79
80	// Set defaults
81	PrefsAddString("victype", "6569");
82	PrefsAddString("sidtype", "6581");
83	PrefsAddInt32("samplerate", 44100);
84	PrefsAddBool("audio16bit", true);
85	PrefsAddBool("stereo", true);
86	PrefsAddBool("filters", true);
87	PrefsAddBool("dualsid", false);
88	PrefsAddInt32("audioeffect", 2);
89	PrefsAddInt32("revdelay", 125);
90	PrefsAddInt32("revfeedback", 0x50);
91	PrefsAddInt32("volume", 0x100);
92	PrefsAddInt32("v1volume", 0x100);
93	PrefsAddInt32("v1pan", -0x40);
94	PrefsAddInt32("v2volume", 0x100);
95	PrefsAddInt32("v2pan", 0);
96	PrefsAddInt32("v3volume", 0x100);
97	PrefsAddInt32("v3pan", 0x40);
98	PrefsAddInt32("v4volume", 0x100);
99	PrefsAddInt32("v4pan", 0);
100	PrefsAddInt32("dualsep", 0x80);
101	PrefsAddInt32("replayfreq", 50);
102	}
103
104
105	/*
106	* Deinitialize preferences
107	*/
108
109	void PrefsExit(void)
110	{
111	// Free prefs list
112	prefs_node p = the_prefs, next;
113	while (p) {
114	next = p->next;
115	free((void *)p->name);
116	free(p->data);
117	delete p;
118	p = next;
119	}
120	}
121
122
123	/*
124	* Find preferences descriptor by keyword
125	*/
126
127	static prefs_desc find_prefs_desc(const char name, prefs_desc *list)
128	{
129	while (list->type != TYPE_ANY) {
130	if (strcmp(list->name, name) == 0)
131	return list;
132	list++;
133	}
134	return NULL;
135	}
136
137
138	/*
139	* Set prefs items
140	*/
141
142	static void add_data(const char name, prefs_type type, void data, int size)
143	{
144	void *d = malloc(size);
145	if (d == NULL)
146	return;
147	memcpy(d, data, size);
148	prefs_node *p = new prefs_node;
149	p->next = 0;
150	p->name = strdup(name);
151	p->type = type;
152	p->data = d;
153	p->desc = find_prefs_desc(p->name, prefs_items);
154	if (the_prefs) {
155	prefs_node *prev = the_prefs;
156	while (prev->next)
157	prev = prev->next;
158	prev->next = p;
159	} else
160	the_prefs = p;
161	}
162
163	void PrefsAddString(const char name, const char s)
164	{
165	add_data(name, TYPE_STRING, (void *)s, strlen(s) + 1);
166	}
167
168	void PrefsAddBool(const char *name, bool b)
169	{
170	add_data(name, TYPE_BOOLEAN, &b, sizeof(bool));
171	}
172
173	void PrefsAddInt32(const char *name, int32 val)
174	{
175	add_data(name, TYPE_INT32, &val, sizeof(int32));
176	}
177
178
179	/*
180	* Replace prefs items
181	*/
182
183	static prefs_node find_node(const char name, prefs_type type, int index = 0)
184	{
185	prefs_node *p = the_prefs;
186	int i = 0;
187	while (p) {
188	if ((type == TYPE_ANY \|\| p->type == type) && !strcmp(p->name, name)) {
189	if (i == index)
190	return p;
191	else
192	i++;
193	}
194	p = p->next;
195	}
196	return NULL;
197	}
198
199	void PrefsReplaceString(const char name, const char s, int index)
200	{
201	prefs_node *p = find_node(name, TYPE_STRING, index);
202	if (p) {
203	if (p->desc && p->desc->func)
204	((prefs_func_string)(p->desc->func))(name, (const char *)p->data, s);
205	free(p->data);
206	p->data = strdup(s);
207	} else
208	add_data(name, TYPE_STRING, (void *)s, strlen(s) + 1);
209	}
210
211	void PrefsReplaceBool(const char *name, bool b)
212	{
213	prefs_node *p = find_node(name, TYPE_BOOLEAN);
214	if (p) {
215	if (p->desc && p->desc->func)
216	((prefs_func_bool)(p->desc->func))(name, (bool )(p->data), b);
217	(bool )(p->data) = b;
218	} else
219	add_data(name, TYPE_BOOLEAN, &b, sizeof(bool));
220	}
221
222	void PrefsReplaceInt32(const char *name, int32 val)
223	{
224	prefs_node *p = find_node(name, TYPE_INT32);
225	if (p) {
226	if (p->desc && p->desc->func)
227	((prefs_func_int32)(p->desc->func))(name, (int32 )(p->data), val);
228	(int32 )(p->data) = val;
229	} else
230	add_data(name, TYPE_INT32, &val, sizeof(int32));
231	}
232
233
234	/*
235	* Get prefs items
236	*/
237
238	const char PrefsFindString(const char name, int index)
239	{
240	prefs_node *p = find_node(name, TYPE_STRING, index);
241	if (p)
242	return (char *)(p->data);
243	else
244	return NULL;
245	}
246
247	bool PrefsFindBool(const char *name)
248	{
249	prefs_node *p = find_node(name, TYPE_BOOLEAN, 0);
250	if (p)
251	return (bool )(p->data);
252	else
253	return false;
254	}
255
256	int32 PrefsFindInt32(const char *name)
257	{
258	prefs_node *p = find_node(name, TYPE_INT32, 0);
259	if (p)
260	return (int32 )(p->data);
261	else
262	return 0;
263	}
264
265
266	/*
267	* Remove prefs items
268	*/
269
270	void PrefsRemoveItem(const char *name, int index)
271	{
272	prefs_node *p = find_node(name, TYPE_ANY, index);
273	if (p) {
274	free((void *)p->name);
275	free(p->data);
276	prefs_node *q = the_prefs;
277	if (q == p) {
278	the_prefs = NULL;
279	delete p;
280	return;
281	}
282	while (q) {
283	if (q->next == p) {
284	q->next = p->next;
285	delete p;
286	return;
287	}
288	q = q->next;
289	}
290	}
291	}
292
293
294	/*
295	* Set prefs change callback function
296	*/
297
298	static void set_callback(const char *name, prefs_func f)
299	{
300	prefs_desc *d = find_prefs_desc(name, prefs_items);
301	if (d == NULL)
302	return;
303	d->func = f;
304	}
305
306	void PrefsSetCallback(const char *name, prefs_func_string f)
307	{
308	set_callback(name, (prefs_func)f);
309	}
310
311	void PrefsSetCallback(const char *name, prefs_func_bool f)
312	{
313	set_callback(name, (prefs_func)f);
314	}
315
316	void PrefsSetCallback(const char *name, prefs_func_int32 f)
317	{
318	set_callback(name, (prefs_func)f);
319	}