A modern Music Player Daemon based on Rockbox open source high quality audio player
tsiry-sandratraina.com
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1
2#include "config.h"
3#include <string.h>
4#include "system.h"
5#include "core_alloc.h"
6#include "buflib.h"
7
8/* not static so it can be discovered by core_get_data() */
9struct buflib_context core_ctx;
10
11#if (CONFIG_PLATFORM & PLATFORM_NATIVE) && !defined(__PCTOOL__)
12
13#if defined(IPOD_VIDEO) && !defined(BOOTLOADER)
14/* defined in linker script */
15extern unsigned char audiobuffer[];
16extern unsigned char *audiobufend_lds[];
17/* pointer to end of audio buffer filled at runtime allocator_init */
18unsigned char *audiobufend;
19#elif defined(SANSA_E200) && defined(HAVE_BOOTLOADER_USB_MODE)
20/* defined in linker script */
21extern unsigned char freebuffer[];
22extern unsigned char freebufferend[];
23/* map linker symbol to the audiobuffer in order to use core_alloc */
24unsigned char *audiobuffer = (unsigned char *)freebuffer;
25unsigned char *audiobufend = (unsigned char *)freebufferend;
26#else /* !IPOD_VIDEO, !SANSA_E200&&BOOTLOADERUSB */
27/* defined in linker script */
28extern unsigned char audiobuffer[];
29extern unsigned char audiobufend[];
30#endif
31
32#else /* PLATFORM_HOSTED */
33static unsigned char audiobuffer[(MEMORYSIZE-1)*1024*1024];
34unsigned char *audiobufend = audiobuffer + sizeof(audiobuffer);
35#endif
36
37#ifdef BUFLIB_DEBUG_PRINT
38/* debug test alloc */
39static int test_alloc;
40#endif
41
42void core_allocator_init(void)
43{
44 unsigned char *start = ALIGN_UP(audiobuffer, sizeof(intptr_t));
45
46#if defined(IPOD_VIDEO) && !defined(BOOTLOADER) && !defined(SIMULATOR)
47 audiobufend=(unsigned char *)audiobufend_lds;
48 if(MEMORYSIZE==64 && probed_ramsize!=64)
49 {
50 audiobufend -= (32<<20);
51 }
52#endif
53
54 buflib_init(&core_ctx, start, audiobufend - start);
55
56#ifdef BUFLIB_DEBUG_PRINT
57 test_alloc = core_alloc(112);
58#endif
59}
60
61/* Allocate memory in the "core" context. See documentation
62 * of buflib_alloc_ex() for details.
63 *
64 * Note: Buffers allocated by this functions are movable.
65 * Don't pass them to functions that call yield()
66 * like disc input/output. */
67int core_alloc(size_t size)
68{
69 return buflib_alloc_ex(&core_ctx, size, NULL);
70}
71
72int core_alloc_ex(size_t size, struct buflib_callbacks *ops)
73{
74 return buflib_alloc_ex(&core_ctx, size, ops);
75}
76
77size_t core_available(void)
78{
79 return buflib_available(&core_ctx);
80}
81
82size_t core_allocatable(void)
83{
84 return buflib_allocatable(&core_ctx);
85}
86
87int core_free(int handle)
88{
89 return buflib_free(&core_ctx, handle);
90}
91
92int core_alloc_maximum(size_t *size, struct buflib_callbacks *ops)
93{
94 return buflib_alloc_maximum(&core_ctx, size, ops);
95}
96
97bool core_shrink(int handle, void* new_start, size_t new_size)
98{
99 return buflib_shrink(&core_ctx, handle, new_start, new_size);
100}
101
102void core_pin(int handle)
103{
104 buflib_pin(&core_ctx, handle);
105}
106
107void core_unpin(int handle)
108{
109 buflib_unpin(&core_ctx, handle);
110}
111
112unsigned core_pin_count(int handle)
113{
114 return buflib_pin_count(&core_ctx, handle);
115}
116
117#ifdef BUFLIB_DEBUG_PRINT
118int core_get_num_blocks(void)
119{
120 return buflib_get_num_blocks(&core_ctx);
121}
122
123bool core_print_block_at(int block_num, char* buf, size_t bufsize)
124{
125 return buflib_print_block_at(&core_ctx, block_num, buf, bufsize);
126}
127
128bool core_test_free(void)
129{
130 bool ret = test_alloc > 0;
131 if (ret)
132 test_alloc = core_free(test_alloc);
133
134 return ret;
135}
136#endif
137
138#ifdef BUFLIB_DEBUG_CHECK_VALID
139void core_check_valid(void)
140{
141 buflib_check_valid(&core_ctx);
142}
143#endif