[FFmpeg-cvslog] avcodec/x86/hevcdsp_init: Remove obsolete MMXEXT functions

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Fri Jun 10 15:47:57 2022 +0200| [338f8fd2324385fdabba7de08de25885ade2edc1] | committer: Andreas Rheinhardt

avcodec/x86/hevcdsp_init: Remove obsolete MMXEXT functions

x64 always has MMX, MMXEXT, SSE and SSE2 and this means
that some functions for MMX, MMXEXT and 3dnow are always
overridden by other functions (unless one e.g. explicitly
disables SSE2) for x64. So given that the only systems that
benefit from these functions are truely ancient 32bit x86s
they are removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=338f8fd2324385fdabba7de08de25885ade2edc1
---

 libavcodec/x86/hevc_idct.asm  | 1 -
 libavcodec/x86/hevcdsp_init.c | 4 ----
 2 files changed, 5 deletions(-)

diff --git a/libavcodec/x86/hevc_idct.asm b/libavcodec/x86/hevc_idct.asm
index 1eb1973f27..ce41f33822 100644
--- a/libavcodec/x86/hevc_idct.asm
+++ b/libavcodec/x86/hevc_idct.asm
@@ -811,7 +811,6 @@ cglobal hevc_idct_32x32_%1, 1, 6, 16, 256, coeffs
 %macro INIT_IDCT_DC 1
 INIT_MMX mmxext
 IDCT_DC_NL  4,      %1
-IDCT_DC     8,  2,  %1
 
 INIT_XMM sse2
 IDCT_DC_NL  8,      %1
diff --git a/libavcodec/x86/hevcdsp_init.c b/libavcodec/x86/hevcdsp_init.c
index 48f48a925f..f7a5b28bec 100644
--- a/libavcodec/x86/hevcdsp_init.c
+++ b/libavcodec/x86/hevcdsp_init.c
@@ -64,7 +64,6 @@ void ff_hevc_idct_ ## W ## _dc_10_ ## opt(int16_t *coeffs); \
 void ff_hevc_idct_ ## W ## _dc_12_ ## opt(int16_t *coeffs)
 
 IDCT_DC_FUNCS(4x4,   mmxext);
-IDCT_DC_FUNCS(8x8,   mmxext);
 IDCT_DC_FUNCS(8x8,   sse2);
 IDCT_DC_FUNCS(16x16, sse2);
 IDCT_DC_FUNCS(32x32, sse2);
@@ -712,7 +711,6 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
     if (bit_depth == 8) {
         if (EXTERNAL_MMXEXT(cpu_flags)) {
             c->idct_dc[0] = ff_hevc_idct_4x4_dc_8_mmxext;
-            c->idct_dc[1] = ff_hevc_idct_8x8_dc_8_mmxext;
 
             c->add_residual[0] = ff_hevc_add_residual_4_8_mmxext;
         }
@@ -889,7 +887,6 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
         if (EXTERNAL_MMXEXT(cpu_flags)) {
             c->add_residual[0] = ff_hevc_add_residual_4_10_mmxext;
             c->idct_dc[0] = ff_hevc_idct_4x4_dc_10_mmxext;
-            c->idct_dc[1] = ff_hevc_idct_8x8_dc_10_mmxext;
         }
         if (EXTERNAL_SSE2(cpu_flags)) {
             c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_10_sse2;
@@ -1105,7 +1102,6 @@ void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth)
     } else if (bit_depth == 12) {
         if (EXTERNAL_MMXEXT(cpu_flags)) {
             c->idct_dc[0] = ff_hevc_idct_4x4_dc_12_mmxext;
-            c->idct_dc[1] = ff_hevc_idct_8x8_dc_12_mmxext;
         }
         if (EXTERNAL_SSE2(cpu_flags)) {
             c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_12_sse2;