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avcodec/x86/rv34dsp: Remove obsolete MMX function

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The only systems which benefit from ff_rv34_idct_dc_add_mmx are truely
ancient 32bit x86s as all other systems use at least the SSE2 versions
(this includes all x64 cpus (which is why this code is restricted
to x86-32)).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-06-14 20:34:24 +02:00
parent eb33fd384e
commit 8360354ae8
2 changed files with 0 additions and 40 deletions
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37
libavcodec/x86/rv34dsp.asm
View File

@ -56,43 +56,6 @@ cglobal rv34_idct_dc_noround, 1, 2, 0
movq [r0+24], m0
REP_RET
; ff_rv34_idct_dc_add_mmx(uint8_t *dst, int stride, int dc);
%if ARCH_X86_32
INIT_MMX mmx
cglobal rv34_idct_dc_add, 3, 3
; calculate DC
IDCT_DC_ROUND r2
pxor m1, m1
movd m0, r2d
psubw m1, m0
packuswb m0, m0
packuswb m1, m1
punpcklbw m0, m0
punpcklbw m1, m1
punpcklwd m0, m0
punpcklwd m1, m1
; add DC
lea r2, [r0+r1*2]
movh m2, [r0]
movh m3, [r0+r1]
movh m4, [r2]
movh m5, [r2+r1]
paddusb m2, m0
paddusb m3, m0
paddusb m4, m0
paddusb m5, m0
psubusb m2, m1
psubusb m3, m1
psubusb m4, m1
psubusb m5, m1
movh [r0], m2
movh [r0+r1], m3
movh [r2], m4
movh [r2+r1], m5
RET
%endif
; Load coeffs and perform row transform
; Output: coeffs in mm[0467], rounder in mm5
%macro ROW_TRANSFORM 1

3
libavcodec/x86/rv34dsp_init.c
View File

@ -26,7 +26,6 @@
void ff_rv34_idct_dc_mmxext(int16_t *block);
void ff_rv34_idct_dc_noround_mmxext(int16_t *block);
void ff_rv34_idct_dc_add_mmx(uint8_t *dst, ptrdiff_t stride, int dc);
void ff_rv34_idct_dc_add_sse2(uint8_t *dst, ptrdiff_t stride, int dc);
void ff_rv34_idct_dc_add_sse4(uint8_t *dst, ptrdiff_t stride, int dc);
void ff_rv34_idct_add_mmxext(uint8_t *dst, ptrdiff_t stride, int16_t *block);
@ -35,8 +34,6 @@ av_cold void ff_rv34dsp_init_x86(RV34DSPContext* c)
{
int cpu_flags = av_get_cpu_flags();
if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags))
c->rv34_idct_dc_add = ff_rv34_idct_dc_add_mmx;
if (EXTERNAL_MMXEXT(cpu_flags)) {
c->rv34_inv_transform_dc = ff_rv34_idct_dc_noround_mmxext;
c->rv34_idct_add = ff_rv34_idct_add_mmxext;