[FFmpeg-devel] [PATCH 17/41] avcodec/x86/cavsdsp: Disable overridden functions on x64

[Andreas Rheinhardt <andreas.rheinhardt@outlook.com>]

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 such CAVS-dsp
functions at compile-time.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavcodec/x86/cavsdsp.c    | 20 +++++++++++++++-----
 libavcodec/x86/cavsidct.asm |  2 ++
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/libavcodec/x86/cavsdsp.c b/libavcodec/x86/cavsdsp.c
index f974f93fc0..fea9daa0ff 100644
--- a/libavcodec/x86/cavsdsp.c
+++ b/libavcodec/x86/cavsdsp.c
@@ -38,6 +38,7 @@
 
 #if HAVE_MMX_EXTERNAL
 
+#if ARCH_X86_32
 void ff_cavs_idct8_mmx(int16_t *out, const int16_t *in);
 
 static void cavs_idct8_add_mmx(uint8_t *dst, int16_t *block, ptrdiff_t stride)
@@ -46,6 +47,7 @@ static void cavs_idct8_add_mmx(uint8_t *dst, int16_t *block, ptrdiff_t stride)
     ff_cavs_idct8_mmx(b2, block);
     ff_add_pixels_clamped_mmx(b2, dst, stride);
 }
+#endif /* ARCH_X86_32 */
 
 void ff_cavs_idct8_sse2(int16_t *out, const int16_t *in);
 
@@ -335,11 +337,13 @@ static void put_cavs_qpel8_mc00_mmx(uint8_t *dst, const uint8_t *src,
     ff_put_pixels8_mmx(dst, src, stride, 8);
 }
 
+#if ARCH_X86_32
 static void avg_cavs_qpel8_mc00_mmx(uint8_t *dst, const uint8_t *src,
                                     ptrdiff_t stride)
 {
     ff_avg_pixels8_mmx(dst, src, stride, 8);
 }
+#endif
 
 static void avg_cavs_qpel8_mc00_mmxext(uint8_t *dst, const uint8_t *src,
                                        ptrdiff_t stride)
@@ -347,6 +351,7 @@ static void avg_cavs_qpel8_mc00_mmxext(uint8_t *dst, const uint8_t *src,
     ff_avg_pixels8_mmxext(dst, src, stride, 8);
 }
 
+#if ARCH_X86_32
 static void put_cavs_qpel16_mc00_mmx(uint8_t *dst, const uint8_t *src,
                                      ptrdiff_t stride)
 {
@@ -364,6 +369,7 @@ static void avg_cavs_qpel16_mc00_mmxext(uint8_t *dst, const uint8_t *src,
 {
     ff_avg_pixels16_mmxext(dst, src, stride, 16);
 }
+#endif
 
 static void put_cavs_qpel16_mc00_sse2(uint8_t *dst, const uint8_t *src,
                                       ptrdiff_t stride)
@@ -382,13 +388,15 @@ static av_cold void cavsdsp_init_mmx(CAVSDSPContext *c,
                                      AVCodecContext *avctx)
 {
 #if HAVE_MMX_EXTERNAL
-    c->put_cavs_qpel_pixels_tab[0][0] = put_cavs_qpel16_mc00_mmx;
     c->put_cavs_qpel_pixels_tab[1][0] = put_cavs_qpel8_mc00_mmx;
+#if ARCH_X86_32
+    c->put_cavs_qpel_pixels_tab[0][0] = put_cavs_qpel16_mc00_mmx;
     c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_mmx;
     c->avg_cavs_qpel_pixels_tab[1][0] = avg_cavs_qpel8_mc00_mmx;
 
     c->cavs_idct8_add = cavs_idct8_add_mmx;
     c->idct_perm      = FF_IDCT_PERM_TRANSPOSE;
+#endif /* ARCH_X86_32 */
 #endif /* HAVE_MMX_EXTERNAL */
 }
 
@@ -408,7 +416,7 @@ CAVS_MC(avg_,  8, mmxext)
 CAVS_MC(avg_, 16, mmxext)
 #endif /* HAVE_MMXEXT_INLINE */
 
-#if HAVE_AMD3DNOW_INLINE
+#if ARCH_X86_32 && HAVE_AMD3DNOW_INLINE
 QPEL_CAVS(put_,       PUT_OP, 3dnow)
 QPEL_CAVS(avg_, AVG_3DNOW_OP, 3dnow)
 
@@ -425,7 +433,7 @@ static av_cold void cavsdsp_init_3dnow(CAVSDSPContext *c,
     DSPFUNC(avg, 0, 16, 3dnow);
     DSPFUNC(avg, 1,  8, 3dnow);
 }
-#endif /* HAVE_AMD3DNOW_INLINE */
+#endif /* ARCH_X86_32 && HAVE_AMD3DNOW_INLINE */
 
 av_cold void ff_cavsdsp_init_x86(CAVSDSPContext *c, AVCodecContext *avctx)
 {
@@ -434,10 +442,10 @@ av_cold void ff_cavsdsp_init_x86(CAVSDSPContext *c, AVCodecContext *avctx)
     if (X86_MMX(cpu_flags))
         cavsdsp_init_mmx(c, avctx);
 
-#if HAVE_AMD3DNOW_INLINE
+#if ARCH_X86_32 && HAVE_AMD3DNOW_INLINE
     if (INLINE_AMD3DNOW(cpu_flags))
         cavsdsp_init_3dnow(c, avctx);
-#endif /* HAVE_AMD3DNOW_INLINE */
+#endif /* ARCH_X86_32 && HAVE_AMD3DNOW_INLINE */
 #if HAVE_MMXEXT_INLINE
     if (INLINE_MMXEXT(cpu_flags)) {
         DSPFUNC(put, 0, 16, mmxext);
@@ -448,7 +456,9 @@ av_cold void ff_cavsdsp_init_x86(CAVSDSPContext *c, AVCodecContext *avctx)
 #endif
 #if HAVE_MMX_EXTERNAL
     if (EXTERNAL_MMXEXT(cpu_flags)) {
+#if ARCH_X86_32
         c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_mmxext;
+#endif
         c->avg_cavs_qpel_pixels_tab[1][0] = avg_cavs_qpel8_mc00_mmxext;
     }
 #endif
diff --git a/libavcodec/x86/cavsidct.asm b/libavcodec/x86/cavsidct.asm
index 6c768c2646..070b46a6cc 100644
--- a/libavcodec/x86/cavsidct.asm
+++ b/libavcodec/x86/cavsidct.asm
@@ -107,6 +107,7 @@ SECTION .text
     SUMSUB_BA     w, 1, 0               ; m1 = dst3, m0 = dst4
 %endmacro
 
+%if ARCH_X86_32
 INIT_MMX mmx
 cglobal cavs_idct8, 2, 4, 8, 8 * 16, out, in, cnt, tmp
     mov           cntd, 2
@@ -168,6 +169,7 @@ cglobal cavs_idct8, 2, 4, 8, 8 * 16, out, in, cnt, tmp
     jg .loop_2
 
     RET
+%endif
 
 INIT_XMM sse2
 cglobal cavs_idct8, 2, 2, 8 + ARCH_X86_64, 0 - 8 * 16, out, in
-- 
2.34.1

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