about summary refs log tree commit diff stats
path: root/src/wrapped/wrappedlibasound.c
blob: 54d558044246183ecf1831da4d5cf343752bfce2 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define _GNU_SOURCE         /* See feature_test_macros(7) */
#include <dlfcn.h>
#include <stdarg.h>

#include "wrappedlibs.h"

#include "debug.h"
#include "wrapper.h"
#include "bridge.h"
#include "librarian/library_private.h"
#include "x64emu.h"
#include "emu/x64emu_private.h"
#include "callback.h"
#include "librarian.h"
#include "box64context.h"
#include "emu/x64emu_private.h"
#include "bridge.h"

#define LIBNAME libasound
const char* libasoundName = "libasound.so.2";

#include "generated/wrappedlibasoundtypes.h"

EXPORT uintptr_t my_snd_lib_error = 0;
static void default_error_handler(const char *file, int line, const char *function, int err, const char *fmt, va_list ap)
{
    (void)file; (void)line; (void)function; (void)err;
    vprintf(fmt, ap);
}

#define ADDED_INIT() \
    my_snd_lib_error = AddCheckBridge(my_context->system, vFpipipV, default_error_handler, 0, "ASoundCustomErrorHandler");

#define ADDED_FINI() \
    my_snd_lib_error = 0;   // no removing of bridge

#include "wrappercallback.h"

#define SUPER() \
GO(0)   \
GO(1)   \
GO(2)   \
GO(3)

// snd_async_callback_t
#define GO(A)   \
static uintptr_t my_async_fct_##A = 0;   \
static void* my_async_##A(void* handler)     \
{                                       \
    return (void*)RunFunction(my_context, my_async_fct_##A, 1, handler);\
}
SUPER()
#undef GO
static void* findAsyncFct(void* fct)
{
    if(!fct) return fct;
    if(GetNativeFnc((uintptr_t)fct))  return GetNativeFnc((uintptr_t)fct);
    #define GO(A) if(my_async_fct_##A == (uintptr_t)fct) return my_async_##A;
    SUPER()
    #undef GO
    #define GO(A) if(my_async_fct_##A == 0) {my_async_fct_##A = (uintptr_t)fct; return my_async_##A; }
    SUPER()
    #undef GO
    printf_log(LOG_NONE, "Warning, no more slot for Asound Async callback\n");
    return NULL;
}


EXPORT int my_snd_async_add_handler(x64emu_t *emu, void *handler, int fd, void* callback, void *private_data)
{
    return my->snd_async_add_handler(handler, fd, findAsyncFct(callback), private_data);
}

EXPORT int my_snd_async_add_pcm_handler(x64emu_t *emu, void *handler, void* pcm,  void* callback, void *private_data)
{
    return my->snd_async_add_pcm_handler(handler, pcm, findAsyncFct(callback), private_data);
}

static void* current_error_handler = NULL;
static void dummy_error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...)
{
    (void)function; (void)err;
    va_list ap;

    fprintf(ftrace, "Warning: this is a dummy snd_lib error handler\n");
    fprintf(ftrace, "Error in file %s on line %i: ", file, line);
    va_start(ap, fmt);
    vfprintf(ftrace, fmt, ap);
    va_end(ap);
    fflush(ftrace);
}

static void empty_error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...)
{
    (void)file; (void)line; (void)function; (void)err; (void)fmt;
    // do nothing
}

EXPORT int my_snd_lib_error_set_handler(x64emu_t* emu, void* handler)
{
    current_error_handler = handler;
    void *error_handler;
    uint8_t *code = (uint8_t *)handler;
    if (code) {
        if ((code[0] == 0xC3) || ((code[0] == 0xF3) && (code[1] == 0xC3))) {
            error_handler = &empty_error_handler;
        } else {
            error_handler = &dummy_error_handler;
            printf_log(LOG_NONE, "Warning: snd_lib_error_set_handler: using dummy error handler\n");
        }
    } else error_handler = NULL;

    return my->snd_lib_error_set_handler(error_handler);
}

void* my_dlopen(x64emu_t* emu, void *filename, int flag);   // defined in wrappedlibdl.c
char* my_dlerror(x64emu_t* emu);
int my_dlclose(x64emu_t* emu, void *handle);
void* my_dlvsym(x64emu_t* emu, void *handle, void *symbol, void *version);
EXPORT void * my_snd_dlopen(x64emu_t* emu, void* name, int mode, void* errbuf, size_t errbuflen)
{
    void* ret = my_dlopen(emu, name, mode);  // Does NULL name (so dlopen libasound) need special treatment?
    if(!ret && errbuf) {
        strncpy(errbuf, my_dlerror(emu), errbuflen);
    }
    return ret;
}
EXPORT int my_snd_dlclose(x64emu_t* emu, void* handle)
{
    return my_dlclose(emu, handle);
}
EXPORT void* my_snd_dlsym(x64emu_t* emu, void* handle, void* name, void* version)
{
    return my_dlvsym(emu, handle, name, version);
}

#define CUSTOM_INIT                     \
    box64->asound = lib;                \
    getMy(lib);

#define CUSTOM_FINI                     \
    lib->context->asound = NULL;        \
    freeMy();

#include "wrappedlib_init.h"