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Re-added builtin_unreachable() using SUBSLOT_X_USED defines. 32 bit volume processing guarded by OUTPUT_RESOLUTION_32BIT_USED

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This commit is contained in:
Ross Owen
2014-03-06 16:16:30 +00:00
parent f4efa0fe70
commit 87194a878e
1 changed files with 40 additions and 40 deletions
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80
module_usb_audio/usb_buffer/decouple.xc
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@@ -162,10 +162,36 @@ void handle_audio_request(chanend c_mix_out)
/* Not in overflow, store samples from mixer into sample buffer */
switch(g_curSubSlot_in)
{
case 2:
#if (STREAM_FORMAT_INPUT_SUBSLOT_2_USED == 1)
__builtin_unreachable();
#endif
for(int i = 0; i < g_numUsbChanIn; i++)
{
/* Receive sample */
int sample = inuint(c_mix_out);
#if !defined(IN_VOLUME_IN_MIXER)
/* Apply volume */
int mult;
int h;
unsigned l;
asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multIn),"r"(i));
{h, l} = macs(mult, sample, 0, 0);
sample = h << 3;
/* Note, in 2 byte sub slot - ignore lower bits of macs */
#elif defined(IN_VOLUME_IN_MIXER) && defined(IN_VOLUME_AFTER_MIX)
sample = sample << 3;
#endif
write_short_via_xc_ptr(g_aud_to_host_dptr, sample>>16);
g_aud_to_host_dptr+=2;
}
break;
case 4:
{
#if (STREAM_FORMAT_INPUT_SUBSLOT_4_USED == 1)
//__builtin_unreachable();
__builtin_unreachable();
#endif
unsigned ptr = g_aud_to_host_dptr;
@@ -181,8 +207,9 @@ void handle_audio_request(chanend c_mix_out)
asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multIn),"r"(i));
{h, l} = macs(mult, sample, 0, 0);
sample = h << 3;
#warning FIXME
#if (STREAM_FORMAT_INPUT_RESOLUTION_32BIT_USED == 1)
sample |= (l >> 29) & 0x7; // Note, this step is not required if we assume sample depth is 24 (rather than 32)
#endif
#elif defined(IN_VOLUME_IN_MIXER) && defined(IN_VOLUME_AFTER_MIX)
sample = sample << 3;
#endif
@@ -198,7 +225,7 @@ void handle_audio_request(chanend c_mix_out)
case 3:
#if (STREAM_FORMAT_INPUT_SUBSLOT_3_USED == 1)
//__builtin_unreachable();
__builtin_unreachable();
#endif
for(int i = 0; i < g_numUsbChanIn; i++)
{
@@ -242,32 +269,6 @@ void handle_audio_request(chanend c_mix_out)
}
break;
case 2:
#if (STREAM_FORMAT_INPUT_SUBSLOT_2_USED == 1)
//__builtin_unreachable();
#endif
for(int i = 0; i < g_numUsbChanIn; i++)
{
/* Receive sample */
int sample = inuint(c_mix_out);
#if !defined(IN_VOLUME_IN_MIXER)
/* Apply volume */
int mult;
int h;
unsigned l;
asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multIn),"r"(i));
{h, l} = macs(mult, sample, 0, 0);
sample = h << 3;
/* Note, in 2 byte sub slot - ignore lower bits of macs */
#elif defined(IN_VOLUME_IN_MIXER) && defined(IN_VOLUME_AFTER_MIX)
sample = sample << 3;
#endif
write_short_via_xc_ptr(g_aud_to_host_dptr, sample>>16);
g_aud_to_host_dptr+=2;
}
break;
default:
__builtin_unreachable();
break;
@@ -321,10 +322,10 @@ void handle_audio_request(chanend c_mix_out)
{
case 2:
#if (SAMPLE_SUBSLOT_SIZE_HS != 3) && (SAMPLE_SUBSLOT_SIZE_FS != 3)
//__builtin_unreachable();
#if (STREAM_FORMAT_OUTPUT_SUBSLOT_2_USED == 0)
__builtin_unreachable();
#endif
/* Buffering not underflow condition send out some samples...*/
/* Buffering not underflow condition send out some samples...*/
for(int i = 0; i < g_numUsbChanOut; i++)
{
#pragma xta endpoint "mixer_request"
@@ -350,8 +351,8 @@ void handle_audio_request(chanend c_mix_out)
break;
case 4:
#if (SAMPLE_SUBSLOT_SIZE_HS != 4) && (SAMPLE_SUBSLOT_SIZE_FS != 4)
//__builtin_unreachable();
#if (STREAM_FORMAT_OUTPUT_SUBSLOT_4_USED == 0)
__builtin_unreachable();
#endif
/* Buffering not underflow condition send out some samples...*/
for(int i = 0; i < g_numUsbChanOut; i++)
@@ -369,11 +370,10 @@ void handle_audio_request(chanend c_mix_out)
asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multOut),"r"(i));
{h, l} = macs(mult, sample, 0, 0);
h <<= 3;
//#if (SAMPLE_BIT_RESOLUTION_HS > 24) || (SAMPLE_BIT_RESOLUTION_FS > 24) || defined(NATIVE_DSD)
#warning FIXME
#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
#endif
outuint(c_mix_out, h);
#else
outuint(c_mix_out, sample);
@@ -383,8 +383,8 @@ void handle_audio_request(chanend c_mix_out)
break;
case 3:
#if (SAMPLE_SUBSLOT_SIZE_HS != 3) && (SAMPLE_SUBSLOT_SIZE_FS != 3)
//__builtin_unreachable();
#if (STREAM_FORMAT_OUTPUT_SUBSLOT_3_USED == 0)
__builtin_unreachable();
#endif
/* Buffering not underflow condition send out some samples...*/
for(int i = 0; i < g_numUsbChanOut; i++)
@@ -435,7 +435,7 @@ void handle_audio_request(chanend c_mix_out)
default:
//__builtin_unreachable();
__builtin_unreachable();
break;
} /* switch(g_curSubSlot_out) */