[FFmpeg-devel] [PATCH 40/41] avfilter/x86/vf_eq_init: Disable overridden functions on x64

[Andreas Rheinhardt]

x64 always has MMX, MMXEXT, SSE and SSE2 and this means
that some functions for MMX, MMXEXT, SSE and 3dnow are always
overridden by other functions (unless one e.g. explicitly
disables SSE2). This commit therefore disables
process_mmxext (overridden by process_sse2) at compile-time for x64.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
 libavfilter/x86/vf_eq.asm    | 2 ++
 libavfilter/x86/vf_eq_init.c | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/libavfilter/x86/vf_eq.asm b/libavfilter/x86/vf_eq.asm
index a30a287029..0b55d28c6b 100644
--- a/libavfilter/x86/vf_eq.asm
+++ b/libavfilter/x86/vf_eq.asm
@@ -83,8 +83,10 @@ cglobal process_one_line, 5, 7, 5, src, dst, contrast, brightness, w
 
 %endmacro
 
+%if ARCH_X86_32
 INIT_MMX mmxext
 PROCESS_ONE_LINE 3
+%endif
 
 INIT_XMM sse2
 PROCESS_ONE_LINE 4
diff --git a/libavfilter/x86/vf_eq_init.c b/libavfilter/x86/vf_eq_init.c
index 113056e76b..0ca341e07d 100644
--- a/libavfilter/x86/vf_eq_init.c
+++ b/libavfilter/x86/vf_eq_init.c
@@ -31,6 +31,7 @@ extern void ff_process_one_line_sse2(const uint8_t *src, uint8_t *dst, short con
                                      short brightness, int w);
 
 #if HAVE_X86ASM
+#if ARCH_X86_32
 static void process_mmxext(EQParameters *param, uint8_t *dst, int dst_stride,
                            const uint8_t *src, int src_stride, int w, int h)
 {
@@ -45,6 +46,7 @@ static void process_mmxext(EQParameters *param, uint8_t *dst, int dst_stride,
     }
     emms_c();
 }
+#endif
 
 static void process_sse2(EQParameters *param, uint8_t *dst, int dst_stride,
                          const uint8_t *src, int src_stride, int w, int h)
@@ -65,9 +67,11 @@ av_cold void ff_eq_init_x86(EQContext *eq)
 {
 #if HAVE_X86ASM
     int cpu_flags = av_get_cpu_flags();
+#if ARCH_X86_32
     if (EXTERNAL_MMXEXT(cpu_flags)) {
         eq->process = process_mmxext;
     }
+#endif
     if (EXTERNAL_SSE2(cpu_flags)) {
         eq->process = process_sse2;
     }
-- 
2.34.1