80486DX2-66/86Box-fork
1
0
Fork 0
Code Issues Pull Requests Activity

Reverted the Sound Blaster DSP changes.

Browse Source
This commit is contained in:
OBattler
2022-07-23 17:53:26 +02:00
parent 20e6e89f0c
commit b20dcf2ee1
1 changed files with 16 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/sound/snd_sb_dsp.c
View File

@@ -326,14 +326,14 @@ void
sb_dsp_speed_changed(sb_dsp_t *dsp)
{
if (dsp->sb_timeo < 256)
dsp->sblatcho = (256.0 - (double) dsp->sb_timeo);
dsp->sblatcho = TIMER_USEC * (256 - dsp->sb_timeo);
else
dsp->sblatcho = ((1000000.0 / ((double) dsp->sb_timeo - 256.0)));
dsp->sblatcho = (uint64_t) (TIMER_USEC * (1000000.0f / (float) (dsp->sb_timeo - 256)));
if (dsp->sb_timei < 256)
dsp->sblatchi = (256.0 - (double) dsp->sb_timei);
dsp->sblatchi = TIMER_USEC * (256 - dsp->sb_timei);
else
dsp->sblatchi = ((1000000.0 / ((double) dsp->sb_timei - 256.0)));
dsp->sblatchi = (uint64_t) (TIMER_USEC * (1000000.0f / (float) (dsp->sb_timei - 256)));
}
void
@@ -359,7 +359,7 @@ sb_start_dma(sb_dsp_t *dsp, int dma8, int autoinit, uint8_t format, int len)
dsp->sb_16_enable = 0;
dsp->sb_8_output = 1;
if (!timer_is_enabled(&dsp->output_timer))
timer_on_auto(&dsp->output_timer, dsp->sblatcho);
timer_set_delay_u64(&dsp->output_timer, dsp->sblatcho);
dsp->sbleftright = dsp->sbleftright_default;
dsp->sbdacpos = 0;
} else {
@@ -372,7 +372,7 @@ sb_start_dma(sb_dsp_t *dsp, int dma8, int autoinit, uint8_t format, int len)
dsp->sb_8_enable = 0;
dsp->sb_16_output = 1;
if (!timer_is_enabled(&dsp->output_timer))
timer_on_auto(&dsp->output_timer, dsp->sblatcho);
timer_set_delay_u64(&dsp->output_timer, dsp->sblatcho);
}
}
@@ -389,7 +389,7 @@ sb_start_dma_i(sb_dsp_t *dsp, int dma8, int autoinit, uint8_t format, int len)
dsp->sb_16_enable = 0;
dsp->sb_8_output = 0;
if (!timer_is_enabled(&dsp->input_timer))
timer_on_auto(&dsp->input_timer, dsp->sblatchi);
timer_set_delay_u64(&dsp->input_timer, dsp->sblatchi);
} else {
dsp->sb_16_length = dsp->sb_16_origlength = len;
dsp->sb_16_format = format;
@@ -400,7 +400,7 @@ sb_start_dma_i(sb_dsp_t *dsp, int dma8, int autoinit, uint8_t format, int len)
dsp->sb_8_enable = 0;
dsp->sb_16_output = 0;
if (!timer_is_enabled(&dsp->input_timer))
timer_on_auto(&dsp->input_timer, dsp->sblatchi);
timer_set_delay_u64(&dsp->input_timer, dsp->sblatchi);
}
memset(dsp->record_buffer, 0, sizeof(dsp->record_buffer));
@@ -508,10 +508,10 @@ sb_exec_command(sb_dsp_t *dsp)
mode does not imply such samplerate. Position is increased in sb_poll_i(). */
if (!timer_is_enabled(&dsp->input_timer)) {
dsp->sb_timei = 256 - 22;
dsp->sblatchi = 22.0;
dsp->sblatchi = TIMER_USEC * 22;
temp = 1000000 / 22;
dsp->sb_freq = temp;
timer_on_auto(&dsp->input_timer, dsp->sblatchi);
timer_set_delay_u64(&dsp->input_timer, dsp->sblatchi);
}
break;
case 0x24: /* 8-bit single cycle DMA input */
@@ -561,7 +561,7 @@ sb_exec_command(sb_dsp_t *dsp)
break;
case 0x40: /* Set time constant */
dsp->sb_timei = dsp->sb_timeo = dsp->sb_data[0];
dsp->sblatcho = dsp->sblatchi = (256.0 - (double) dsp->sb_data[0]);
dsp->sblatcho = dsp->sblatchi = TIMER_USEC * (256 - dsp->sb_data[0]);
temp = 256 - dsp->sb_data[0];
temp = 1000000 / temp;
sb_dsp_log("Sample rate - %ihz (%i)\n", temp, dsp->sblatcho);
@@ -572,8 +572,8 @@ sb_exec_command(sb_dsp_t *dsp)
case 0x41: /* Set output sampling rate */
case 0x42: /* Set input sampling rate */
if (dsp->sb_type >= SB16) {
dsp->sblatcho = ((1000000.0 / (double) (dsp->sb_data[1] + (dsp->sb_data[0] << 8))));
sb_dsp_log("Sample rate - %ihz (%lf)\n", dsp->sb_data[1] + (dsp->sb_data[0] << 8), dsp->sblatcho);
dsp->sblatcho = (uint64_t) (TIMER_USEC * (1000000.0f / (float) (dsp->sb_data[1] + (dsp->sb_data[0] << 8))));
sb_dsp_log("Sample rate - %ihz (%i)\n", dsp->sb_data[1] + (dsp->sb_data[0] << 8), dsp->sblatcho);
temp = dsp->sb_freq;
dsp->sb_freq = dsp->sb_data[1] + (dsp->sb_data[0] << 8);
dsp->sb_timeo = 256LL + dsp->sb_freq;
@@ -631,7 +631,7 @@ sb_exec_command(sb_dsp_t *dsp)
case 0x80: /* Pause DAC */
dsp->sb_pausetime = dsp->sb_data[0] + (dsp->sb_data[1] << 8);
if (!timer_is_enabled(&dsp->output_timer))
timer_on_auto(&dsp->output_timer, dsp->sblatcho);
timer_set_delay_u64(&dsp->output_timer, dsp->sblatcho);
break;
case 0x90: /* High speed 8-bit autoinit DMA output */
if (dsp->sb_type >= SB2)
@@ -1200,7 +1200,7 @@ pollsb(void *p)
int tempi, ref;
int data[2];
timer_on_auto(&dsp->output_timer, dsp->sblatcho);
timer_advance_u64(&dsp->output_timer, dsp->sblatcho);
if (dsp->sb_8_enable && !dsp->sb_8_pause && dsp->sb_pausetime < 0 && dsp->sb_8_output) {
sb_dsp_update(dsp);
@@ -1457,7 +1457,7 @@ sb_poll_i(void *p)
sb_dsp_t *dsp = (sb_dsp_t *) p;
int processed = 0;
timer_on_auto(&dsp->input_timer, dsp->sblatchi);
timer_advance_u64(&dsp->input_timer, dsp->sblatchi);
if (dsp->sb_8_enable && !dsp->sb_8_pause && dsp->sb_pausetime < 0 && !dsp->sb_8_output) {
switch (dsp->sb_8_format) {