Add Orc functions to convert to sc8. bswap version is a bit of a hack.

2 files changed, 28 insertions, 0 deletions

diff --git a/host/lib/convert/convert_orc.orc b/host/lib/convert/convert_orc.orc
index 5450bf4db..f7075606e 100644
--- a/host/lib/convert/convert_orc.orc
+++ b/host/lib/convert/convert_orc.orc
@@ -61,3 +61,20 @@ x2 swapw dst, tmp
 .temp 4 tmp
 x2 swapw tmp, src
 swapl dst, tmp
+
+.function _convert_swap_byte_pairs_orc
+.source 4 src
+.dest 4 dst
+swapl dst, src
+
+.function _convert_fc32_1_to_sc8_1_nswap_orc
+.source 8 src
+.dest 2 dst
+.temp 8 tmp
+.temp 4 tmp2
+.floatparam 4 scalar
+x2 mulf tmp, src, scalar
+x2 convfl tmp, tmp
+swaplq tmp, tmp
+x2 convlw tmp2, tmp
+x2 convwb dst, tmp2
diff --git a/host/lib/convert/convert_with_orc.cpp b/host/lib/convert/convert_with_orc.cpp
index 0c46bcf1e..630554564 100644
--- a/host/lib/convert/convert_with_orc.cpp
+++ b/host/lib/convert/convert_with_orc.cpp
@@ -27,6 +27,8 @@ extern void _convert_item32_1_to_fc32_1_nswap_orc(void *, const void *, float, i
 extern void _convert_item32_1_to_fc32_1_bswap_orc(void *, const void *, float, int);
 extern void _convert_sc16_1_to_item32_1_nswap_orc(void *, const void *, float, int);
 extern void _convert_item32_1_to_sc16_1_nswap_orc(void *, const void *, float, int);
+extern void _convert_fc32_1_to_sc8_1_nswap_orc(void *, const void *, float, int);
+extern void _convert_swap_byte_pairs_orc(void *, const void *, int);
 }
 
 DECLARE_CONVERTER(fc32, 1, sc16_item32_le, 1, PRIORITY_LIBORC){
@@ -52,3 +54,12 @@ DECLARE_CONVERTER(sc16, 1, sc16_item32_le, 1, PRIORITY_LIBORC){
 DECLARE_CONVERTER(sc16_item32_le, 1, sc16, 1, PRIORITY_LIBORC){
     _convert_item32_1_to_sc16_1_nswap_orc(outputs[0], inputs[0], scale_factor, nsamps);
 }
+
+DECLARE_CONVERTER(fc32, 1, sc8_item32_be, 1, PRIORITY_LIBORC){
+    _convert_fc32_1_to_sc8_1_nswap_orc(outputs[0], inputs[0], scale_factor, nsamps);
+    _convert_swap_byte_pairs_orc(outputs[0], outputs[0], nsamps);
+}
+
+DECLARE_CONVERTER(fc32, 1, sc8_item32_le, 1, PRIORITY_LIBORC){
+    _convert_fc32_1_to_sc8_1_nswap_orc(outputs[0], inputs[0], scale_factor, nsamps);
+}