Apply Julian's changes to improve a1's mixing

Kode · Aug 5, 2024 · bd8e264 · bd8e264
1 parent 7d82ee8
commit bd8e264
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Showing 3 changed files with 4 additions and 4 deletions.
diff --git a/Sources/kinc/audio1/a1unit.c b/Sources/kinc/audio1/a1unit.c
@@ -4,7 +4,7 @@
 
 struct kinc_a1_channel {
 	kinc_a1_sound_t *sound;
-	float position;
+	double position;
 	bool loop;
 	volatile float volume;
 	float pitch;

diff --git a/Sources/kinc/audio1/audio.c.h b/Sources/kinc/audio1/audio.c.h
@@ -18,12 +18,12 @@ static kinc_a1_channel_t channels[CHANNEL_COUNT];
 static kinc_a1_stream_channel_t streamchannels[CHANNEL_COUNT];
 static kinc_internal_video_channel_t videos[CHANNEL_COUNT];
 
-static float sampleLinear(int16_t *data, float position) {
+static float sampleLinear(int16_t *data, double position) {
 	int pos1 = (int)position;
 	int pos2 = (int)(position + 1);
 	float sample1 = data[pos1] / 32767.0f;
 	float sample2 = data[pos2] / 32767.0f;
-	float a = position - pos1;
+	float a = (float)(position - pos1);
 	return sample1 * (1 - a) + sample2 * a;
 }
 

diff --git a/Sources/kinc/audio1/sound.c.h b/Sources/kinc/audio1/sound.c.h
@@ -201,7 +201,7 @@ kinc_a1_sound_t *kinc_a1_sound_create(const char *filename) {
 			kinc_affirm(false);
 		}
 	}
-	sound->sample_rate_pos = 44100 / (float)sound->samples_per_second;
+	sound->sample_rate_pos = kinc_a2_samples_per_second() / (float)sound->samples_per_second;
 	free(data);
 
 	return sound;