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Bring back loop unroll in decoupler SendSamples4

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This commit is contained in:
Shuchita Khare
2024-05-20 14:30:56 +01:00
parent 4b2cd1c5ca
commit 0595d8c8f7
1 changed files with 46 additions and 49 deletions
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95
lib_xua/src/core/buffer/decouple/decouple.xc
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@@ -155,68 +155,65 @@ unsigned unpackData = 0;
unsigned packState = 0; unsigned packState = 0;
unsigned packData = 0; unsigned packData = 0;
static inline void SendSamples4(chanend c_mix_out) static inline void _send_sample_4(chanend c_mix_out)
{ {
/* Doing this checking allows us to unroll */ int sample;
if(1)//(g_numUsbChan_Out == NUM_USB_CHAN_OUT) read_via_xc_ptr(sample, g_aud_from_host_rdptr);
{ g_aud_from_host_rdptr+=4;
/* Buffering not underflow condition send out some samples...*/
#pragma loop unroll
for(int i = 0; i < g_numUsbChan_Out; i++)
{
int sample;
int mult;
int h;
unsigned l;
read_via_xc_ptr(sample, g_aud_from_host_rdptr);
g_aud_from_host_rdptr+=4;
#if (OUTPUT_VOLUME_CONTROL == 1) && (!OUT_VOLUME_IN_MIXER) #if (OUTPUT_VOLUME_CONTROL == 1) && (!OUT_VOLUME_IN_MIXER)
unsafe int mult;
{ int h;
mult = multOutPtr[i]; unsigned l;
} unsafe
{h, l} = macs(mult, sample, 0, 0); {
h <<= 3; mult = multOutPtr[i];
}
{h, l} = macs(mult, sample, 0, 0);
h <<= 3;
#if (STREAM_FORMAT_OUTPUT_RESOLUTION_32BIT_USED == 1) #if (STREAM_FORMAT_OUTPUT_RESOLUTION_32BIT_USED == 1)
h |= (l >>29) & 0x7; // Note: This step is not required if we assume sample depth is 24bit (rather than 32bit) h |= (l >>29) & 0x7; // Note: This step is not required if we assume sample depth is 24bit (rather than 32bit)
// Note: We need all 32bits for Native DSD // Note: We need all 32bits for Native DSD
#endif #endif
outuint(c_mix_out, h); outuint(c_mix_out, h);
#else #else
outuint(c_mix_out, sample); outuint(c_mix_out, sample);
#endif #endif
}
static inline void SendSamples4(chanend c_mix_out)
{
/* Doing this allows us to unroll */
if(g_numUsbChan_Out == HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT)
{
#pragma loop unroll
for(int i = 0; i < HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT; i++)
{
_send_sample_4(c_mix_out);
}
}
else if(g_numUsbChan_Out == HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT)
{
#pragma loop unroll
for(int i = 0; i < HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT; i++)
{
_send_sample_4(c_mix_out);
}
}
else if(g_numUsbChan_Out == HS_STREAM_FORMAT_OUTPUT_3_CHAN_COUNT)
{
#pragma loop unroll
for(int i = 0; i < HS_STREAM_FORMAT_OUTPUT_3_CHAN_COUNT; i++)
{
_send_sample_4(c_mix_out);
} }
} }
else else
{ {
#pragma loop unroll #pragma loop unroll
for(int i = 0; i < NUM_USB_CHAN_OUT_FS; i++) for(int i = 0; i < NUM_USB_CHAN_OUT_FS; i++)
{ {
int sample; _send_sample_4(c_mix_out);
int mult;
int h;
unsigned l;
read_via_xc_ptr(sample, g_aud_from_host_rdptr);
g_aud_from_host_rdptr+=4;
#if (OUTPUT_VOLUME_CONTROL == 1) && (!OUT_VOLUME_IN_MIXER)
unsafe
{
mult = multOutPtr[i];
}
{h, l} = macs(mult, sample, 0, 0);
h <<= 3;
#if (STREAM_FORMAT_OUTPUT_RESOLUTION_32BIT_USED == 1)
h |= (l >>29) & 0x7; // Note: This step is not required if we assume sample depth is 24bit (rather than 32bit)
// Note: We need all 32bits for Native DSD
#endif
outuint(c_mix_out, h);
#else
outuint(c_mix_out, sample);
#endif
} }
} }
} }