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Fixed AGB audio regression

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This commit is contained in:
Lior Halphon 2022-01-22 01:11:23 +02:00
parent ee03b1e433
commit 56b14c67aa
2 changed files with 10 additions and 6 deletions
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3
Cocoa/Document.m
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@ -1128,9 +1128,8 @@ static unsigned *multiplication_table_for_frequency(unsigned frequency)
[self.consoleWindow orderFront:nil];
}
pending_console_output = nil;
}
}
[console_output_lock unlock];
}
- (void) log: (const char *) string withAttributes: (GB_log_attributes) attributes

13
Core/apu.c
View File

@ -72,9 +72,7 @@ static void update_sample(GB_gameboy_t *gb, unsigned index, int8_t value, unsign
/* For some reason, channel 3 is inverted on the AGB */
value ^= 0xF;
}
if (value == 0 && gb->apu.samples[index] == 0) return;
if (gb->model >= GB_MODEL_AGB) {
/* On the AGB, because no analog mixing is done, the behavior of NR51 is a bit different.
A channel that is not connected to a terminal is idenitcal to a connected channel
@ -111,6 +109,8 @@ static void update_sample(GB_gameboy_t *gb, unsigned index, int8_t value, unsign
return;
}
if (value == 0 && gb->apu.samples[index] == 0) return;
if (!GB_apu_is_DAC_enabled(gb, index)) {
value = gb->apu.samples[index];
}
@ -283,7 +283,12 @@ static void render(GB_gameboy_t *gb)
static void update_square_sample(GB_gameboy_t *gb, unsigned index)
{
if (gb->apu.square_channels[index].sample_surpressed) return;
if (gb->apu.square_channels[index].sample_surpressed) {
if (gb->model >= GB_MODEL_AGB) {
update_sample(gb, index, gb->apu.samples[index], 0);
}
return;
}
uint8_t duty = gb->io_registers[index == GB_SQUARE_1? GB_IO_NR11 :GB_IO_NR21] >> 6;
update_sample(gb, index,