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-rw-r--r--source/nds/entry.cpp32
1 files changed, 13 insertions, 19 deletions
diff --git a/source/nds/entry.cpp b/source/nds/entry.cpp
index 90428d3..f470a43 100644
--- a/source/nds/entry.cpp
+++ b/source/nds/entry.cpp
@@ -928,7 +928,7 @@ void S9xGenerateSound ()
if (so.stereo)
#endif
samples_to_write <<= 1;
- int byte_offset = bytes_so_far + so.play_position;
+ int byte_offset = (bytes_so_far + so.play_position) & SOUND_BUFFER_SIZE_MASK;
so.err_counter &= FIXED_POINT_REMAINDER;
@@ -940,9 +940,9 @@ void S9xGenerateSound ()
#endif
bytes_this_run <<= 1;
- if ((byte_offset & SOUND_BUFFER_SIZE_MASK) + bytes_this_run > SOUND_BUFFER_SIZE)
+ if (byte_offset + bytes_this_run > SOUND_BUFFER_SIZE)
{
- bytes_this_run = SOUND_BUFFER_SIZE - (byte_offset & SOUND_BUFFER_SIZE_MASK);
+ bytes_this_run = SOUND_BUFFER_SIZE - byte_offset;
}
if (bytes_so_far + bytes_this_run > so.buffer_size)
@@ -958,7 +958,7 @@ void S9xGenerateSound ()
#endif
samples_this_run >>= 1;
- S9xMixSamplesO (Buf, samples_this_run, byte_offset & SOUND_BUFFER_SIZE_MASK);
+ S9xMixSamples (Buf + byte_offset, samples_this_run);
so.samples_mixed_so_far += samples_this_run;
samples_to_write -= samples_this_run;
#ifndef FOREVER_16_BIT_SOUND
@@ -1026,8 +1026,6 @@ void NDSSFCProduceSound (unsigned int unused)
}
#endif
-// block_generate_sound = TRUE;
-
audiobuff = (unsigned short*)ds2_getAudiobuff();
if(NULL == audiobuff) //There are audio queue in sending or wait to send
{
@@ -1039,11 +1037,11 @@ void NDSSFCProduceSound (unsigned int unused)
{
/* Where to put the samples to */
#ifndef FOREVER_16_BIT_SOUND
- unsigned byte_offset = so.play_position +
- (so.sixteen_bit ? (so.samples_mixed_so_far << 1) : so.samples_mixed_so_far);
+ unsigned byte_offset = (so.play_position +
+ (so.sixteen_bit ? (so.samples_mixed_so_far << 1) : so.samples_mixed_so_far)) & SOUND_BUFFER_SIZE_MASK;
#else
- unsigned byte_offset = so.play_position +
- (so.samples_mixed_so_far << 1);
+ unsigned byte_offset = (so.play_position +
+ (so.samples_mixed_so_far << 1)) & SOUND_BUFFER_SIZE_MASK;
#endif
//printf ("%d:", sample_count - so.samples_mixed_so_far); fflush (stdout);
@@ -1071,9 +1069,9 @@ void NDSSFCProduceSound (unsigned int unused)
#endif
bytes_this_run <<= 1;
- if ((byte_offset & SOUND_BUFFER_SIZE_MASK) + bytes_this_run > SOUND_BUFFER_SIZE)
+ if (byte_offset + bytes_this_run > SOUND_BUFFER_SIZE)
{
- bytes_this_run = SOUND_BUFFER_SIZE - (byte_offset & SOUND_BUFFER_SIZE_MASK);
+ bytes_this_run = SOUND_BUFFER_SIZE - byte_offset;
}
if (bytes_so_far + bytes_this_run > so.buffer_size)
@@ -1089,7 +1087,7 @@ void NDSSFCProduceSound (unsigned int unused)
#endif
samples_this_run >>= 1;
- S9xMixSamplesO (Buf, samples_this_run, byte_offset & SOUND_BUFFER_SIZE_MASK);
+ S9xMixSamples (Buf + byte_offset, samples_this_run);
so.samples_mixed_so_far += samples_this_run;
samples_to_write -= samples_this_run;
#ifndef FOREVER_16_BIT_SOUND
@@ -1112,10 +1110,7 @@ void NDSSFCProduceSound (unsigned int unused)
bytes_to_write <<= 1;
unsigned byte_offset = so.play_position;
- so.play_position += bytes_to_write;
- so.play_position &= SOUND_BUFFER_SIZE_MASK; /* wrap to beginning */
-
-// block_generate_sound = FALSE;
+ so.play_position = (so.play_position + bytes_to_write) & SOUND_BUFFER_SIZE_MASK; /* wrap to beginning */
unsigned short *dst_pt = audiobuff;
unsigned short *dst_pt1 = dst_pt + DS2_BUFFER_SIZE;
@@ -1141,8 +1136,7 @@ void NDSSFCProduceSound (unsigned int unused)
}
bytes_to_write -= I;
- byte_offset += I;
- byte_offset &= SOUND_BUFFER_SIZE_MASK; /* wrap */
+ byte_offset = (byte_offset + I) & SOUND_BUFFER_SIZE_MASK; /* wrap */
}
ds2_updateAudio();