broadcom/genxml: Support unpacking fixed-point fractional values.

This was an oversight in the original XML support, because unpacking
wasn't used much.  The new XML-based CL dumper will want it, though.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/broadcom/cle/v3d_packet_helpers.h b/src/broadcom/cle/v3d_packet_helpers.h
index d01ff6ef0ad..c86cad85266 100644
--- a/src/broadcom/cle/v3d_packet_helpers.h
+++ b/src/broadcom/cle/v3d_packet_helpers.h
@@ -177,6 +177,22 @@ __gen_unpack_sint(const uint8_t *restrict cl, uint32_t start, uint32_t end)
 }
 
 static inline float
+__gen_unpack_sfixed(const uint8_t *restrict cl, uint32_t start, uint32_t end,
+                    uint32_t fractional_size)
+{
+        int32_t bits = __gen_unpack_sint(cl, start, end);
+        return (float)bits / (1 << fractional_size);
+}
+
+static inline float
+__gen_unpack_ufixed(const uint8_t *restrict cl, uint32_t start, uint32_t end,
+                    uint32_t fractional_size)
+{
+        int32_t bits = __gen_unpack_uint(cl, start, end);
+        return (float)bits / (1 << fractional_size);
+}
+
+static inline float
 __gen_unpack_float(const uint8_t *restrict cl, uint32_t start, uint32_t end)
 {
    assert(start % 8 == 0);