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> compile NEMU

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221220000 张三
Linux zzy 5.15.146.1-microsoft-standard-WSL2 #1 SMP Thu Jan 11 04:09:03 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
 21:14:43 up 3 days, 16:20,  1 user,  load average: 0.53, 0.40, 0.61
This commit is contained in:
tracer-ics2023
2024-09-20 21:14:44 +08:00
committed by zzy
parent 1e2ef1f0b1
commit 685ae2d55a
1 changed files with 5 additions and 4 deletions
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9
nemu/src/device/audio.c
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@ -38,15 +38,16 @@ static void audio_callback(void *userdata, uint8_t *stream, int len) {
uint32_t read_cnt = MIN(count, len); uint32_t read_cnt = MIN(count, len);
uint32_t to_end_cnt = audio_base[reg_sbuf_size] - pos_read; uint32_t to_end_cnt = audio_base[reg_sbuf_size] - pos_read;
int32_t out_bound_cnt = read_cnt - to_end_cnt; int32_t out_bound_cnt = read_cnt - to_end_cnt;
memset(stream, 0, len);
if (out_bound_cnt > 0) { if (out_bound_cnt > 0) {
SDL_memcpy(stream, sbuf + pos_read, to_end_cnt); memcpy(stream, sbuf + pos_read, to_end_cnt);
SDL_memcpy(stream + to_end_cnt, sbuf, out_bound_cnt); memcpy(stream + to_end_cnt, sbuf, out_bound_cnt);
} else { } else {
SDL_memcpy(stream, sbuf + pos_read, read_cnt); memcpy(stream, sbuf + pos_read, read_cnt);
} }
pos_read += read_cnt; pos_read += read_cnt;
pos_read %= audio_base[reg_sbuf_size]; pos_read %= audio_base[reg_sbuf_size];
if (len > read_cnt) SDL_memset(stream + read_cnt, 0, len - read_cnt); // if (len > read_cnt) memset(stream + read_cnt, 0, len - read_cnt);
audio_base[reg_count] -= read_cnt; audio_base[reg_count] -= read_cnt;
} }