apps/rbcodecconfig.h at master · tsiry-sandratraina.com/rockbox-zig

A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita audio rust zig deno mpris rockbox mpd
rockbox-zig / apps / rbcodecconfig.h
at master 91 lines 2.3 kB view raw
 1#ifndef RBCODECCONFIG_H_INCLUDED
 2#define RBCODECCONFIG_H_INCLUDED
 3
 4/* Explicit path to avoid issues with name clashes (libopus) */
 5#include "../firmware/export/config.h"
 6
 7#ifndef __ASSEMBLER__
 8
 9/* NULL, offsetof, size_t */
10#include <stddef.h>
11
12/* ssize_t, off_t, open, close, read, lseek, SEEK_SET, SEEK_CUR, SEEK_END,
13 * O_RDONLY, O_WRONLY, O_CREAT, O_APPEND, MAX_PATH, filesize */
14#include "file.h"
15
16/* {,u}int{8,16,32,64}_t, , intptr_t, uintptr_t, bool, true, false, swap16,
17 * swap32, hto{be,le}{16,32}, {be,le}toh{16,32}, ROCKBOX_{BIG,LITTLE}_ENDIAN,
18 * {,U}INT{8,16,32,64}_{MIN,MAX} */
19#include "system.h"
20
21/* HZ, TIME_AFTER, current_tick */
22#include "kernel.h"
23
24/* MAX_PATH */
25#include "fs_defines.h"
26
27/* Structure to record some info during processing call */
28struct dsp_loop_context
29{
30    long last_yield;
31#ifdef CPU_COLDFIRE
32    unsigned long old_macsr;
33#endif
34};
35
36static inline void dsp_process_start(struct dsp_loop_context *ctx, bool thread_yield)
37{
38    /* At least perform one yield before starting */
39    ctx->last_yield = current_tick;
40    if (thread_yield)
41    {
42        yield();
43    }
44#if defined(CPU_COLDFIRE)
45    /* set emac unit for dsp processing, and save old macsr, we're running in
46       codec thread context at this point, so can't clobber it */
47    ctx->old_macsr = coldfire_get_macsr();
48    coldfire_set_macsr(EMAC_FRACTIONAL | EMAC_SATURATE);
49#endif
50}
51
52static inline void dsp_process_loop(struct dsp_loop_context *ctx, bool thread_yield)
53{
54    /* Yield at least once each tick */
55    long tick = current_tick;
56    if (TIME_AFTER(tick, ctx->last_yield))
57    {
58        ctx->last_yield = tick;
59        if (thread_yield)
60        {
61            yield();
62        }
63    }
64}
65
66static inline void dsp_process_end(struct dsp_loop_context *ctx)
67{
68#if defined(CPU_COLDFIRE)
69    /* set old macsr again */
70    coldfire_set_macsr(ctx->old_macsr);
71#endif
72    (void)ctx;
73}
74
75#define DSP_PROCESS_START(yield) \
76    struct dsp_loop_context __ctx; \
77    dsp_process_start(&__ctx, yield)
78
79#define DSP_PROCESS_LOOP(yield) \
80    dsp_process_loop(&__ctx, yield)
81
82#define DSP_PROCESS_END() \
83    dsp_process_end(&__ctx)
84
85#endif
86
87#define DSP_OUT_MIN_HZ      PLAY_SAMPR_HW_MIN
88#define DSP_OUT_MAX_HZ      PLAY_SAMPR_MAX
89#define DSP_OUT_DEFAULT_HZ  PLAY_SAMPR_DEFAULT
90
91#endif