github-mirrors/FFmpeg
1
0
Fork 0
mirror of https://mirror.skon.top/https://github.com/FFmpeg/FFmpeg synced 2026-04-20 21:00:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/x86/snowdsp_init: Remove disabled SSE2 functions

Browse Source 
Disabled in 3e0f7126b5
(almost 20 years ago) and no one fixed them, so remove them.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2026-04-08 23:23:30 +02:00
parent bd2964e611
commit 32678dcc88
1 changed files with 1 additions and 292 deletions
Download Patch File Download Diff File Expand all files Collapse all files

293
libavcodec/x86/snowdsp_init.c
View File

@@ -1,5 +1,5 @@
/*
* MMX and SSE2 optimized snow DSP utils
* ASM optimized Snow DSP utils
* Copyright (c) 2005-2006 Robert Edele <yartrebo@earthlink.net>
*
* This file is part of FFmpeg.
@@ -34,194 +34,6 @@ void ff_snow_inner_add_yblock_ssse3(const uint8_t *obmc, const int obmc_stride,
#if HAVE_INLINE_ASM
static void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, IDWTELEM *temp, int width){
const int w2= (width+1)>>1;
const int w_l= (width>>1);
const int w_r= w2 - 1;
int i;
{ // Lift 0
IDWTELEM * const ref = b + w2 - 1;
IDWTELEM b_0 = b[0]; //By allowing the first entry in b[0] to be calculated twice
// (the first time erroneously), we allow the SSE2 code to run an extra pass.
// The savings in code and time are well worth having to store this value and
// calculate b[0] correctly afterwards.
i = 0;
__asm__ volatile(
"pcmpeqd %%xmm7, %%xmm7 \n\t"
"pcmpeqd %%xmm3, %%xmm3 \n\t"
"psllw $1, %%xmm3 \n\t"
"paddw %%xmm7, %%xmm3 \n\t"
"psllw $13, %%xmm3 \n\t"
::);
for(; i<w_l-15; i+=16){
__asm__ volatile(
"movdqu (%1), %%xmm1 \n\t"
"movdqu 16(%1), %%xmm5 \n\t"
"movdqu 2(%1), %%xmm2 \n\t"
"movdqu 18(%1), %%xmm6 \n\t"
"paddw %%xmm1, %%xmm2 \n\t"
"paddw %%xmm5, %%xmm6 \n\t"
"paddw %%xmm7, %%xmm2 \n\t"
"paddw %%xmm7, %%xmm6 \n\t"
"pmulhw %%xmm3, %%xmm2 \n\t"
"pmulhw %%xmm3, %%xmm6 \n\t"
"paddw (%0), %%xmm2 \n\t"
"paddw 16(%0), %%xmm6 \n\t"
"movdqa %%xmm2, (%0) \n\t"
"movdqa %%xmm6, 16(%0) \n\t"
:: "r"(&b[i]), "r"(&ref[i])
: "memory"
);
}
snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
b[0] = b_0 - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
}
{ // Lift 1
IDWTELEM * const dst = b+w2;
i = 0;
for(; (((x86_reg)&dst[i]) & 0x1F) && i<w_r; i++){
dst[i] = dst[i] - (b[i] + b[i + 1]);
}
for(; i<w_r-15; i+=16){
__asm__ volatile(
"movdqu (%1), %%xmm1 \n\t"
"movdqu 16(%1), %%xmm5 \n\t"
"movdqu 2(%1), %%xmm2 \n\t"
"movdqu 18(%1), %%xmm6 \n\t"
"paddw %%xmm1, %%xmm2 \n\t"
"paddw %%xmm5, %%xmm6 \n\t"
"movdqa (%0), %%xmm0 \n\t"
"movdqa 16(%0), %%xmm4 \n\t"
"psubw %%xmm2, %%xmm0 \n\t"
"psubw %%xmm6, %%xmm4 \n\t"
"movdqa %%xmm0, (%0) \n\t"
"movdqa %%xmm4, 16(%0) \n\t"
:: "r"(&dst[i]), "r"(&b[i])
: "memory"
);
}
snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
}
{ // Lift 2
IDWTELEM * const ref = b+w2 - 1;
IDWTELEM b_0 = b[0];
i = 0;
__asm__ volatile(
"psllw $15, %%xmm7 \n\t"
"pcmpeqw %%xmm6, %%xmm6 \n\t"
"psrlw $13, %%xmm6 \n\t"
"paddw %%xmm7, %%xmm6 \n\t"
::);
for(; i<w_l-15; i+=16){
__asm__ volatile(
"movdqu (%1), %%xmm0 \n\t"
"movdqu 16(%1), %%xmm4 \n\t"
"movdqu 2(%1), %%xmm1 \n\t"
"movdqu 18(%1), %%xmm5 \n\t" //FIXME try aligned reads and shifts
"paddw %%xmm6, %%xmm0 \n\t"
"paddw %%xmm6, %%xmm4 \n\t"
"paddw %%xmm7, %%xmm1 \n\t"
"paddw %%xmm7, %%xmm5 \n\t"
"pavgw %%xmm1, %%xmm0 \n\t"
"pavgw %%xmm5, %%xmm4 \n\t"
"psubw %%xmm7, %%xmm0 \n\t"
"psubw %%xmm7, %%xmm4 \n\t"
"psraw $1, %%xmm0 \n\t"
"psraw $1, %%xmm4 \n\t"
"movdqa (%0), %%xmm1 \n\t"
"movdqa 16(%0), %%xmm5 \n\t"
"paddw %%xmm1, %%xmm0 \n\t"
"paddw %%xmm5, %%xmm4 \n\t"
"psraw $2, %%xmm0 \n\t"
"psraw $2, %%xmm4 \n\t"
"paddw %%xmm1, %%xmm0 \n\t"
"paddw %%xmm5, %%xmm4 \n\t"
"movdqa %%xmm0, (%0) \n\t"
"movdqa %%xmm4, 16(%0) \n\t"
:: "r"(&b[i]), "r"(&ref[i])
: "memory"
);
}
snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
b[0] = b_0 + ((2 * ref[1] + W_BO-1 + 4 * b_0) >> W_BS);
}
{ // Lift 3
IDWTELEM * const src = b+w2;
i = 0;
for(; (((x86_reg)&temp[i]) & 0x1F) && i<w_r; i++){
temp[i] = src[i] - ((-W_AM*(b[i] + b[i+1]))>>W_AS);
}
for(; i<w_r-7; i+=8){
__asm__ volatile(
"movdqu 2(%1), %%xmm2 \n\t"
"movdqu 18(%1), %%xmm6 \n\t"
"paddw (%1), %%xmm2 \n\t"
"paddw 16(%1), %%xmm6 \n\t"
"movdqu (%0), %%xmm0 \n\t"
"movdqu 16(%0), %%xmm4 \n\t"
"paddw %%xmm2, %%xmm0 \n\t"
"paddw %%xmm6, %%xmm4 \n\t"
"psraw $1, %%xmm2 \n\t"
"psraw $1, %%xmm6 \n\t"
"paddw %%xmm0, %%xmm2 \n\t"
"paddw %%xmm4, %%xmm6 \n\t"
"movdqa %%xmm2, (%2) \n\t"
"movdqa %%xmm6, 16(%2) \n\t"
:: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
: "memory"
);
}
snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
}
{
snow_interleave_line_header(&i, width, b, temp);
for (; (i & 0x3E) != 0x3E; i-=2){
b[i+1] = temp[i>>1];
b[i] = b[i>>1];
}
for (i-=62; i>=0; i-=64){
__asm__ volatile(
"movdqa (%1), %%xmm0 \n\t"
"movdqa 16(%1), %%xmm2 \n\t"
"movdqa 32(%1), %%xmm4 \n\t"
"movdqa 48(%1), %%xmm6 \n\t"
"movdqa (%1), %%xmm1 \n\t"
"movdqa 16(%1), %%xmm3 \n\t"
"movdqa 32(%1), %%xmm5 \n\t"
"movdqa 48(%1), %%xmm7 \n\t"
"punpcklwd (%2), %%xmm0 \n\t"
"punpcklwd 16(%2), %%xmm2 \n\t"
"punpcklwd 32(%2), %%xmm4 \n\t"
"punpcklwd 48(%2), %%xmm6 \n\t"
"movdqa %%xmm0, (%0) \n\t"
"movdqa %%xmm2, 32(%0) \n\t"
"movdqa %%xmm4, 64(%0) \n\t"
"movdqa %%xmm6, 96(%0) \n\t"
"punpckhwd (%2), %%xmm1 \n\t"
"punpckhwd 16(%2), %%xmm3 \n\t"
"punpckhwd 32(%2), %%xmm5 \n\t"
"punpckhwd 48(%2), %%xmm7 \n\t"
"movdqa %%xmm1, 16(%0) \n\t"
"movdqa %%xmm3, 48(%0) \n\t"
"movdqa %%xmm5, 80(%0) \n\t"
"movdqa %%xmm7, 112(%0) \n\t"
:: "r"(&(b)[i]), "r"(&(b)[i>>1]), "r"(&(temp)[i>>1])
: "memory"
);
}
}
}
static void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, IDWTELEM *temp, int width){
const int w2= (width+1)>>1;
const int w_l= (width>>1);
@@ -396,30 +208,12 @@ static void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, IDWTELEM *temp, int w
}
#if HAVE_7REGS
#define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\
""op" ("r",%%"FF_REG_d"), %%"t0" \n\t"\
""op" 16("r",%%"FF_REG_d"), %%"t1" \n\t"\
""op" 32("r",%%"FF_REG_d"), %%"t2" \n\t"\
""op" 48("r",%%"FF_REG_d"), %%"t3" \n\t"
#define snow_vertical_compose_sse2_load(r,t0,t1,t2,t3)\
snow_vertical_compose_sse2_load_add("movdqa",r,t0,t1,t2,t3)
#define snow_vertical_compose_sse2_add(r,t0,t1,t2,t3)\
snow_vertical_compose_sse2_load_add("paddw",r,t0,t1,t2,t3)
#define snow_vertical_compose_r2r_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
"psubw %%"s0", %%"t0" \n\t"\
"psubw %%"s1", %%"t1" \n\t"\
"psubw %%"s2", %%"t2" \n\t"\
"psubw %%"s3", %%"t3" \n\t"
#define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\
"movdqa %%"s0", ("w",%%"FF_REG_d") \n\t"\
"movdqa %%"s1", 16("w",%%"FF_REG_d") \n\t"\
"movdqa %%"s2", 32("w",%%"FF_REG_d") \n\t"\
"movdqa %%"s3", 48("w",%%"FF_REG_d") \n\t"
#define snow_vertical_compose_sra(n,t0,t1,t2,t3)\
"psraw $"n", %%"t0" \n\t"\
"psraw $"n", %%"t1" \n\t"\
@@ -438,85 +232,6 @@ static void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, IDWTELEM *temp, int w
"pmulhw %%"s2", %%"t2" \n\t"\
"pmulhw %%"s3", %%"t3" \n\t"
#define snow_vertical_compose_sse2_move(s0,s1,s2,s3,t0,t1,t2,t3)\
"movdqa %%"s0", %%"t0" \n\t"\
"movdqa %%"s1", %%"t1" \n\t"\
"movdqa %%"s2", %%"t2" \n\t"\
"movdqa %%"s3", %%"t3" \n\t"
static void ff_snow_vertical_compose97i_sse2(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
x86_reg i = width;
while(i & 0x1F)
{
i--;
b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
}
i+=i;
__asm__ volatile (
"jmp 2f \n\t"
"1: \n\t"
snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%6","xmm0","xmm2","xmm4","xmm6")
"pcmpeqw %%xmm0, %%xmm0 \n\t"
"pcmpeqw %%xmm2, %%xmm2 \n\t"
"paddw %%xmm2, %%xmm2 \n\t"
"paddw %%xmm0, %%xmm2 \n\t"
"psllw $13, %%xmm2 \n\t"
snow_vertical_compose_r2r_add("xmm0","xmm0","xmm0","xmm0","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_r2r_pmulhw("xmm2","xmm2","xmm2","xmm2","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_add("%5","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_store("%5","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%3","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_r2r_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store("%4","xmm0","xmm2","xmm4","xmm6")
"pcmpeqw %%xmm7, %%xmm7 \n\t"
"pcmpeqw %%xmm5, %%xmm5 \n\t"
"psllw $15, %%xmm7 \n\t"
"psrlw $13, %%xmm5 \n\t"
"paddw %%xmm7, %%xmm5 \n\t"
snow_vertical_compose_r2r_add("xmm5","xmm5","xmm5","xmm5","xmm0","xmm2","xmm4","xmm6")
"movq (%2,%%"FF_REG_d"), %%xmm1 \n\t"
"movq 8(%2,%%"FF_REG_d"), %%xmm3 \n\t"
"paddw %%xmm7, %%xmm1 \n\t"
"paddw %%xmm7, %%xmm3 \n\t"
"pavgw %%xmm1, %%xmm0 \n\t"
"pavgw %%xmm3, %%xmm2 \n\t"
"movq 16(%2,%%"FF_REG_d"), %%xmm1 \n\t"
"movq 24(%2,%%"FF_REG_d"), %%xmm3 \n\t"
"paddw %%xmm7, %%xmm1 \n\t"
"paddw %%xmm7, %%xmm3 \n\t"
"pavgw %%xmm1, %%xmm4 \n\t"
"pavgw %%xmm3, %%xmm6 \n\t"
snow_vertical_compose_r2r_sub("xmm7","xmm7","xmm7","xmm7","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sra("2","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store("%3","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%2","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store("%2","xmm0","xmm2","xmm4","xmm6")
"2: \n\t"
"sub $64, %%"FF_REG_d" \n\t"
"jge 1b \n\t"
:"+d"(i)
:"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
}
#define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\
""op" ("r",%%"FF_REG_d"), %%"t0" \n\t"\
""op" 8("r",%%"FF_REG_d"), %%"t1" \n\t"\
@@ -623,12 +338,6 @@ av_cold void ff_dwt_init_x86(SnowDWTContext *c)
c->horizontal_compose97i = ff_snow_horizontal_compose97i_mmx;
#if HAVE_7REGS
c->vertical_compose97i = ff_snow_vertical_compose97i_mmx;
#endif
}
if (INLINE_SSE2(cpuflags) && 0) {
c->horizontal_compose97i = ff_snow_horizontal_compose97i_sse2;
#if HAVE_7REGS
c->vertical_compose97i = ff_snow_vertical_compose97i_sse2;
#endif
}
#endif /* HAVE_INLINE_ASM */