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Fix SDL sound

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This commit is contained in:
Miloslav Číž 2020-10-04 17:09:24 +02:00
parent fc587ab94d
commit b4b4fcb87a
1 changed files with 16 additions and 5 deletions
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21
main_sdl.c
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@ -50,7 +50,7 @@
#define SFG_DITHERED_SHADOW 1 #define SFG_DITHERED_SHADOW 1
#define SFG_HEADBOB_SHEAR (-1 * SFG_SCREEN_RESOLUTION_Y / 80) #define SFG_HEADBOB_SHEAR (-1 * SFG_SCREEN_RESOLUTION_Y / 80)
#define MUSIC_VOLUME 64 #define MUSIC_VOLUME 16
#ifdef __EMSCRIPTEN__ #ifdef __EMSCRIPTEN__
#define SFG_FPS 30 #define SFG_FPS 30
@ -314,6 +314,17 @@ static inline uint16_t mixSamples(uint16_t sample1, uint16_t sample2)
uint8_t musicOn = 1; uint8_t musicOn = 1;
uint8_t aaa[] =
{
14,
7,
248,
148,
6,
8
};
void audioFillCallback(void *userdata, uint8_t *s, int l) void audioFillCallback(void *userdata, uint8_t *s, int l)
{ {
uint16_t *s16 = (uint16_t *) s; uint16_t *s16 = (uint16_t *) s;
@ -321,9 +332,9 @@ void audioFillCallback(void *userdata, uint8_t *s, int l)
for (int i = 0; i < l / 2; ++i) for (int i = 0; i < l / 2; ++i)
{ {
s16[i] = musicOn ? s16[i] = musicOn ?
mixSamples(audioBuff[audioPos],(128 - SFG_getNextMusicSample()) mixSamples(audioBuff[audioPos], MUSIC_VOLUME *
* MUSIC_VOLUME) : (SFG_musicTrackAverages[SFG_MusicState.track] - SFG_getNextMusicSample()))
audioBuff[audioPos]; : audioBuff[audioPos];
audioBuff[audioPos] = 0; audioBuff[audioPos] = 0;
audioPos = (audioPos < SFG_SFX_SAMPLE_COUNT - 1) ? (audioPos + 1) : 0; audioPos = (audioPos < SFG_SFX_SAMPLE_COUNT - 1) ? (audioPos + 1) : 0;
@ -338,7 +349,7 @@ void SFG_enableMusic(uint8_t enable)
void SFG_playSound(uint8_t soundIndex, uint8_t volume) void SFG_playSound(uint8_t soundIndex, uint8_t volume)
{ {
uint16_t pos = audioPos; uint16_t pos = audioPos;
uint16_t volumeScale = 1 << (volume / 32); uint16_t volumeScale = 1 << (volume / 36);
for (int i = 0; i < SFG_SFX_SAMPLE_COUNT; ++i) for (int i = 0; i < SFG_SFX_SAMPLE_COUNT; ++i)
{ {