pandory500/redquark-amiberry-rb
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Small improvement in CD audio playback

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This commit is contained in:
Dimitris Panokostas 2020-08-23 02:49:51 +02:00
parent 723a1e136f
commit c90d5a55b7
1 changed files with 5 additions and 15 deletions
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20
src/osdep/cda_play.cpp
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@ -15,7 +15,6 @@ void sdl2_cdaudio_callback(void* userdata, Uint8* stream, int len);
SDL_AudioDeviceID cdda_dev;
int pull_buffer_len[2];
uae_u8* pull_buffer[2];
int pull_buffer_max_len;
cda_audio::~cda_audio()
{
@ -67,11 +66,10 @@ cda_audio::cda_audio(int num_sectors, int sectorsize, int samplerate, bool inter
}
else
{
pull_buffer_max_len = bufsize * 2;
for (auto i = 0; i < 2; i++)
{
pull_buffer[i] = buffers[i];
pull_buffer_len[i] = bufsize;
pull_buffer_len[i] = 0;
}
SDL_PauseAudioDevice(cdda_dev, 0);
@ -109,11 +107,6 @@ bool cda_audio::play(int bufnum)
if (pull_mode)
{
if (pull_buffer_len[bufnum] + bufsize > pull_buffer_max_len)
{
write_log(_T("CD Audio pull overflow! %d %d %d\n"), pull_buffer_len[bufnum], bufsize, pull_buffer_max_len);
pull_buffer_len[bufnum] = 0;
}
SDL_LockAudioDevice(cdda_dev);
pull_buffer_len[bufnum] += bufsize;
SDL_UnlockAudioDevice(cdda_dev);
@ -158,15 +151,12 @@ void sdl2_cdaudio_callback(void* userdata, Uint8* stream, int len)
{
for (auto i = 0; i < 2; ++i)
{
if (pull_buffer_len[i] <= 0)
if (pull_buffer_len[i] == 0)
continue;
if (len > 0)
memcpy(stream, pull_buffer[i], len);
memcpy(stream, pull_buffer[i], pull_buffer_len[i]);
stream += pull_buffer_len[i];
if (len < pull_buffer_len[i])
memmove(pull_buffer[i], pull_buffer[i] + len, pull_buffer_len[i] - len);
pull_buffer_len[i] -= len;
pull_buffer_len[i] = 0;
}
}