On Sun, 2 Jul 2023, John Cox wrote:
Add macros for dual scalar half->single multiply and accumulate
Add macro for shift, saturate and shorten single to byte
Add filter constants
Signed-off-by: John Cox <j...@kynesim.co.uk>
---
libavfilter/aarch64/vf_bwdif_neon.S | 53 +++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/libavfilter/aarch64/vf_bwdif_neon.S
b/libavfilter/aarch64/vf_bwdif_neon.S
index 639ab22998..c2f5eb1f73 100644
--- a/libavfilter/aarch64/vf_bwdif_neon.S
+++ b/libavfilter/aarch64/vf_bwdif_neon.S
@@ -23,3 +23,56 @@
#include "libavutil/aarch64/asm.S"
+// Space taken on the stack by an int (32-bit)
+#ifdef __APPLE__
+.set SP_INT, 4
+#else
+.set SP_INT, 8
+#endif
Ok I guess this works and doesn't require excessive ifdefs. It can end up
brittle though, but I guess this form can be tolerable.
// Martin
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