swscale: convert yuy2/uyvy/nv12/nv21ToY/UV from inline asm to yasm.

Also implement SSE2/AVX variants.

3 files changed, 325 insertions, 163 deletions

diff --git a/libswscale/x86/input.asm b/libswscale/x86/input.asm
new file mode 100644
index 0000000000..4bdb575765
--- /dev/null
+++ b/libswscale/x86/input.asm
@@ -0,0 +1,242 @@
+;******************************************************************************
+;* x86-optimized input routines; does shuffling of packed
+;* YUV formats into individual planes, and converts RGB
+;* into YUV planes also.
+;* Copyright (c) 2012 Ronald S. Bultje <rsbultje@gmail.com>
+;*
+;* This file is part of Libav.
+;*
+;* Libav is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 of the License, or (at your option) any later version.
+;*
+;* Libav is distributed in the hope that it will be useful,
+;* but WITHOUT ANY WARRANTY; without even the implied warranty of
+;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser General Public
+;* License along with Libav; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+;******************************************************************************
+
+%include "x86inc.asm"
+%include "x86util.asm"
+
+SECTION_RODATA
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+; YUYV/UYVY/NV12/NV21 packed pixel shuffling.
+;
+; void <fmt>ToY_<opt>(uint8_t *dst, const uint8_t *src, int w);
+; and
+; void <fmt>toUV_<opt>(uint8_t *dstU, uint8_t *dstV, const uint8_t *src,
+;                      const uint8_t *unused, int w);
+;-----------------------------------------------------------------------------
+
+; %1 = a (aligned) or u (unaligned)
+; %2 = yuyv or uyvy
+%macro LOOP_YUYV_TO_Y 2
+.loop_%1:
+    mov%1          m0, [srcq+wq*2]        ; (byte) { Y0, U0, Y1, V0, ... }
+    mov%1          m1, [srcq+wq*2+mmsize] ; (byte) { Y8, U4, Y9, V4, ... }
+%ifidn %2, yuyv
+    pand           m0, m2                 ; (word) { Y0, Y1, ..., Y7 }
+    pand           m1, m2                 ; (word) { Y8, Y9, ..., Y15 }
+%else ; uyvy
+    psrlw          m0, 8                  ; (word) { Y0, Y1, ..., Y7 }
+    psrlw          m1, 8                  ; (word) { Y8, Y9, ..., Y15 }
+%endif ; yuyv/uyvy
+    packuswb       m0, m1                 ; (byte) { Y0, ..., Y15 }
+    mova    [dstq+wq], m0
+    add            wq, mmsize
+    jl .loop_%1
+    REP_RET
+%endmacro
+
+; %1 = nr. of XMM registers
+; %2 = yuyv or uyvy
+; %3 = if specified, it means that unaligned and aligned code in loop
+;      will be the same (i.e. YUYV+AVX), and thus we don't need to
+;      split the loop in an aligned and unaligned case
+%macro YUYV_TO_Y_FN 2-3
+cglobal %2ToY, 3, 3, %1, dst, src, w
+%ifdef ARCH_X86_64
+    movsxd         wq, wd
+%endif
+    add          dstq, wq
+%if mmsize == 16
+    test         srcq, 15
+%endif
+    lea          srcq, [srcq+wq*2]
+%ifidn %2, yuyv
+    pcmpeqb        m2, m2                 ; (byte) { 0xff } x 16
+    psrlw          m2, 8                  ; (word) { 0x00ff } x 8
+%endif ; yuyv
+%if mmsize == 16
+    jnz .loop_u_start
+    neg            wq
+    LOOP_YUYV_TO_Y  a, %2
+.loop_u_start:
+    neg            wq
+    LOOP_YUYV_TO_Y  u, %2
+%else ; mmsize == 8
+    neg            wq
+    LOOP_YUYV_TO_Y  a, %2
+%endif ; mmsize == 8/16
+%endmacro
+
+; %1 = a (aligned) or u (unaligned)
+; %2 = yuyv or uyvy
+%macro LOOP_YUYV_TO_UV 2
+.loop_%1:
+%ifidn %2, yuyv
+    mov%1          m0, [srcq+wq*4]        ; (byte) { Y0, U0, Y1, V0, ... }
+    mov%1          m1, [srcq+wq*4+mmsize] ; (byte) { Y8, U4, Y9, V4, ... }
+    psrlw          m0, 8                  ; (word) { U0, V0, ..., U3, V3 }
+    psrlw          m1, 8                  ; (word) { U4, V4, ..., U7, V7 }
+%else ; uyvy
+%if cpuflag(avx)
+    vpand          m0, m2, [srcq+wq*4]        ; (word) { U0, V0, ..., U3, V3 }
+    vpand          m1, m2, [srcq+wq*4+mmsize] ; (word) { U4, V4, ..., U7, V7 }
+%else
+    mov%1          m0, [srcq+wq*4]        ; (byte) { Y0, U0, Y1, V0, ... }
+    mov%1          m1, [srcq+wq*4+mmsize] ; (byte) { Y8, U4, Y9, V4, ... }
+    pand           m0, m2                 ; (word) { U0, V0, ..., U3, V3 }
+    pand           m1, m2                 ; (word) { U4, V4, ..., U7, V7 }
+%endif
+%endif ; yuyv/uyvy
+    packuswb       m0, m1                 ; (byte) { U0, V0, ..., U7, V7 }
+    pand           m1, m0, m2             ; (word) { U0, U1, ..., U7 }
+    psrlw          m0, 8                  ; (word) { V0, V1, ..., V7 }
+%if mmsize == 16
+    packuswb       m1, m0                 ; (byte) { U0, ... U7, V1, ... V7 }
+    movh   [dstUq+wq], m1
+    movhps [dstVq+wq], m1
+%else ; mmsize == 8
+    packuswb       m1, m1                 ; (byte) { U0, ... U3 }
+    packuswb       m0, m0                 ; (byte) { V0, ... V3 }
+    movh   [dstUq+wq], m1
+    movh   [dstVq+wq], m0
+%endif ; mmsize == 8/16
+    add            wq, mmsize / 2
+    jl .loop_%1
+    REP_RET
+%endmacro
+
+; %1 = nr. of XMM registers
+; %2 = yuyv or uyvy
+; %3 = if specified, it means that unaligned and aligned code in loop
+;      will be the same (i.e. UYVY+AVX), and thus we don't need to
+;      split the loop in an aligned and unaligned case
+%macro YUYV_TO_UV_FN 2-3
+cglobal %2ToUV, 3, 4, %1, dstU, dstV, src, w
+%ifdef ARCH_X86_64
+    movsxd         wq, r4m
+%else ; x86-32
+    mov            wq, r4m
+%endif
+    add         dstUq, wq
+    add         dstVq, wq
+%if mmsize == 16 && %0 == 2
+    test         srcq, 15
+%endif
+    lea          srcq, [srcq+wq*4]
+    pcmpeqb        m2, m2                 ; (byte) { 0xff } x 16
+    psrlw          m2, 8                  ; (word) { 0x00ff } x 8
+    ; NOTE: if uyvy+avx, u/a are identical
+%if mmsize == 16 && %0 == 2
+    jnz .loop_u_start
+    neg            wq
+    LOOP_YUYV_TO_UV a, %2
+.loop_u_start:
+    neg            wq
+    LOOP_YUYV_TO_UV u, %2
+%else ; mmsize == 8
+    neg            wq
+    LOOP_YUYV_TO_UV a, %2
+%endif ; mmsize == 8/16
+%endmacro
+
+; %1 = a (aligned) or u (unaligned)
+; %2 = nv12 or nv21
+%macro LOOP_NVXX_TO_UV 2
+.loop_%1:
+    mov%1          m0, [srcq+wq*2]        ; (byte) { U0, V0, U1, V1, ... }
+    mov%1          m1, [srcq+wq*2+mmsize] ; (byte) { U8, V8, U9, V9, ... }
+    pand           m2, m0, m4             ; (word) { U0, U1, ..., U7 }
+    pand           m3, m1, m4             ; (word) { U8, U9, ..., U15 }
+    psrlw          m0, 8                  ; (word) { V0, V1, ..., V7 }
+    psrlw          m1, 8                  ; (word) { V8, V9, ..., V15 }
+    packuswb       m2, m3                 ; (byte) { U0, ..., U15 }
+    packuswb       m0, m1                 ; (byte) { V0, ..., V15 }
+%ifidn %2, nv12
+    mova   [dstUq+wq], m2
+    mova   [dstVq+wq], m0
+%else ; nv21
+    mova   [dstVq+wq], m2
+    mova   [dstUq+wq], m0
+%endif ; nv12/21
+    add            wq, mmsize
+    jl .loop_%1
+    REP_RET
+%endmacro
+
+; %1 = nr. of XMM registers
+; %2 = nv12 or nv21
+%macro NVXX_TO_UV_FN 2
+cglobal %2ToUV, 3, 4, %1, dstU, dstV, src, w
+%ifdef ARCH_X86_64
+    movsxd         wq, r4m
+%else ; x86-32
+    mov            wq, r4m
+%endif
+    add         dstUq, wq
+    add         dstVq, wq
+%if mmsize == 16
+    test         srcq, 15
+%endif
+    lea          srcq, [srcq+wq*2]
+    pcmpeqb        m4, m4                 ; (byte) { 0xff } x 16
+    psrlw          m4, 8                  ; (word) { 0x00ff } x 8
+%if mmsize == 16
+    jnz .loop_u_start
+    neg            wq
+    LOOP_NVXX_TO_UV a, %2
+.loop_u_start:
+    neg            wq
+    LOOP_NVXX_TO_UV u, %2
+%else ; mmsize == 8
+    neg            wq
+    LOOP_NVXX_TO_UV a, %2
+%endif ; mmsize == 8/16
+%endmacro
+
+%ifdef ARCH_X86_32
+INIT_MMX mmx
+YUYV_TO_Y_FN  0, yuyv
+YUYV_TO_Y_FN  0, uyvy
+YUYV_TO_UV_FN 0, yuyv
+YUYV_TO_UV_FN 0, uyvy
+NVXX_TO_UV_FN 0, nv12
+NVXX_TO_UV_FN 0, nv21
+%endif
+
+INIT_XMM sse2
+YUYV_TO_Y_FN  3, yuyv
+YUYV_TO_Y_FN  2, uyvy
+YUYV_TO_UV_FN 3, yuyv
+YUYV_TO_UV_FN 3, uyvy
+NVXX_TO_UV_FN 5, nv12
+NVXX_TO_UV_FN 5, nv21
+
+INIT_XMM avx
+; in theory, we could write a yuy2-to-y using vpand (i.e. AVX), but
+; that's not faster in practice
+YUYV_TO_UV_FN 3, yuyv
+YUYV_TO_UV_FN 3, uyvy, 1
+NVXX_TO_UV_FN 5, nv12
+NVXX_TO_UV_FN 5, nv21
diff --git a/libswscale/x86/swscale_mmx.c b/libswscale/x86/swscale_mmx.c
index 4305cef41d..867a9f1244 100644
--- a/libswscale/x86/swscale_mmx.c
+++ b/libswscale/x86/swscale_mmx.c
@@ -244,6 +244,26 @@ VSCALE_FUNCS(sse2, sse2);
 VSCALE_FUNC(16, sse4);
 VSCALE_FUNCS(avx, avx);
 
+#define INPUT_UV_FUNC(fmt, opt) \
+extern void ff_ ## fmt ## ToUV_ ## opt(uint8_t *dstU, uint8_t *dstV, \
+                                       const uint8_t *src, const uint8_t *unused1, \
+                                       int w, uint32_t *unused2)
+#define INPUT_FUNC(fmt, opt) \
+extern void ff_ ## fmt ## ToY_  ## opt(uint8_t *dst, const uint8_t *src, \
+                                       int w, uint32_t *unused); \
+    INPUT_UV_FUNC(fmt, opt)
+#define INPUT_FUNCS(opt) \
+    INPUT_FUNC(uyvy, opt); \
+    INPUT_FUNC(yuyv, opt); \
+    INPUT_UV_FUNC(nv12, opt); \
+    INPUT_UV_FUNC(nv21, opt)
+
+#if ARCH_X86_32
+INPUT_FUNCS(mmx);
+#endif
+INPUT_FUNCS(sse2);
+INPUT_FUNCS(avx);
+
 void ff_sws_init_swScale_mmx(SwsContext *c)
 {
     int cpu_flags = av_get_cpu_flags();
@@ -296,6 +316,30 @@ switch(c->dstBpc){ \
         ASSIGN_MMX_SCALE_FUNC(c->hyScale, c->hLumFilterSize, mmx, mmx);
         ASSIGN_MMX_SCALE_FUNC(c->hcScale, c->hChrFilterSize, mmx, mmx);
         ASSIGN_VSCALE_FUNC(c->yuv2plane1, mmx, mmx2, cpu_flags & AV_CPU_FLAG_MMX2);
+
+        switch (c->srcFormat) {
+        case PIX_FMT_Y400A:
+            c->lumToYV12 = ff_yuyvToY_mmx;
+            if (c->alpPixBuf)
+                c->alpToYV12 = ff_uyvyToY_mmx;
+            break;
+        case PIX_FMT_YUYV422:
+            c->lumToYV12 = ff_yuyvToY_mmx;
+            c->chrToYV12 = ff_yuyvToUV_mmx;
+            break;
+        case PIX_FMT_UYVY422:
+            c->lumToYV12 = ff_uyvyToY_mmx;
+            c->chrToYV12 = ff_uyvyToUV_mmx;
+            break;
+        case PIX_FMT_NV12:
+            c->chrToYV12 = ff_nv12ToUV_mmx;
+            break;
+        case PIX_FMT_NV21:
+            c->chrToYV12 = ff_nv21ToUV_mmx;
+            break;
+        default:
+            break;
+        }
     }
     if (cpu_flags & AV_CPU_FLAG_MMX2) {
         ASSIGN_VSCALEX_FUNC(c->yuv2planeX, mmx2,);
@@ -314,6 +358,28 @@ switch(c->dstBpc){ \
         ASSIGN_SSE_SCALE_FUNC(c->hcScale, c->hChrFilterSize, sse2, sse2);
         ASSIGN_VSCALEX_FUNC(c->yuv2planeX, sse2,);
         ASSIGN_VSCALE_FUNC(c->yuv2plane1, sse2, sse2, 1);
+
+        switch (c->srcFormat) {
+        case PIX_FMT_Y400A:
+            c->lumToYV12 = ff_yuyvToY_sse2;
+            if (c->alpPixBuf)
+                c->alpToYV12 = ff_uyvyToY_sse2;
+            break;
+        case PIX_FMT_YUYV422:
+            c->lumToYV12 = ff_yuyvToY_sse2;
+            c->chrToYV12 = ff_yuyvToUV_sse2;
+            break;
+        case PIX_FMT_UYVY422:
+            c->lumToYV12 = ff_uyvyToY_sse2;
+            c->chrToYV12 = ff_uyvyToUV_sse2;
+            break;
+        case PIX_FMT_NV12:
+            c->chrToYV12 = ff_nv12ToUV_sse2;
+            break;
+        case PIX_FMT_NV21:
+            c->chrToYV12 = ff_nv21ToUV_sse2;
+            break;
+        }
     }
     if (cpu_flags & AV_CPU_FLAG_SSSE3) {
         ASSIGN_SSE_SCALE_FUNC(c->hyScale, c->hLumFilterSize, ssse3, ssse3);
@@ -332,6 +398,23 @@ switch(c->dstBpc){ \
     if (cpu_flags & AV_CPU_FLAG_AVX) {
         ASSIGN_VSCALEX_FUNC(c->yuv2planeX, avx,);
         ASSIGN_VSCALE_FUNC(c->yuv2plane1, avx, avx, 1);
+
+        switch (c->srcFormat) {
+        case PIX_FMT_YUYV422:
+            c->chrToYV12 = ff_yuyvToUV_avx;
+            break;
+        case PIX_FMT_UYVY422:
+            c->chrToYV12 = ff_uyvyToUV_avx;
+            break;
+        case PIX_FMT_NV12:
+            c->chrToYV12 = ff_nv12ToUV_avx;
+            break;
+        case PIX_FMT_NV21:
+            c->chrToYV12 = ff_nv21ToUV_avx;
+            break;
+        default:
+            break;
+        }
     }
 #endif
 }
diff --git a/libswscale/x86/swscale_template.c b/libswscale/x86/swscale_template.c
index 5e7df5c4a0..b3d7336588 100644
--- a/libswscale/x86/swscale_template.c
+++ b/libswscale/x86/swscale_template.c
@@ -1361,147 +1361,6 @@ static void RENAME(yuv2yuyv422_1)(SwsContext *c, const int16_t *buf0,
     }
 }
 
-#if !COMPILE_TEMPLATE_MMX2
-//FIXME yuy2* can read up to 7 samples too much
-
-static void RENAME(yuy2ToY)(uint8_t *dst, const uint8_t *src,
-                            int width, uint32_t *unused)
-{
-    __asm__ volatile(
-        "movq "MANGLE(bm01010101)", %%mm2           \n\t"
-        "mov                    %0, %%"REG_a"       \n\t"
-        "1:                                         \n\t"
-        "movq    (%1, %%"REG_a",2), %%mm0           \n\t"
-        "movq   8(%1, %%"REG_a",2), %%mm1           \n\t"
-        "pand                %%mm2, %%mm0           \n\t"
-        "pand                %%mm2, %%mm1           \n\t"
-        "packuswb            %%mm1, %%mm0           \n\t"
-        "movq                %%mm0, (%2, %%"REG_a") \n\t"
-        "add                    $8, %%"REG_a"       \n\t"
-        " js                    1b                  \n\t"
-        : : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst+width)
-        : "%"REG_a
-    );
-}
-
-static void RENAME(yuy2ToUV)(uint8_t *dstU, uint8_t *dstV,
-                             const uint8_t *src1, const uint8_t *src2,
-                             int width, uint32_t *unused)
-{
-    __asm__ volatile(
-        "movq "MANGLE(bm01010101)", %%mm4           \n\t"
-        "mov                    %0, %%"REG_a"       \n\t"
-        "1:                                         \n\t"
-        "movq    (%1, %%"REG_a",4), %%mm0           \n\t"
-        "movq   8(%1, %%"REG_a",4), %%mm1           \n\t"
-        "psrlw                  $8, %%mm0           \n\t"
-        "psrlw                  $8, %%mm1           \n\t"
-        "packuswb            %%mm1, %%mm0           \n\t"
-        "movq                %%mm0, %%mm1           \n\t"
-        "psrlw                  $8, %%mm0           \n\t"
-        "pand                %%mm4, %%mm1           \n\t"
-        "packuswb            %%mm0, %%mm0           \n\t"
-        "packuswb            %%mm1, %%mm1           \n\t"
-        "movd                %%mm0, (%3, %%"REG_a") \n\t"
-        "movd                %%mm1, (%2, %%"REG_a") \n\t"
-        "add                    $4, %%"REG_a"       \n\t"
-        " js                    1b                  \n\t"
-        : : "g" ((x86_reg)-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
-        : "%"REG_a
-    );
-    assert(src1 == src2);
-}
-
-/* This is almost identical to the previous, end exists only because
- * yuy2ToY/UV)(dst, src+1, ...) would have 100% unaligned accesses. */
-static void RENAME(uyvyToY)(uint8_t *dst, const uint8_t *src,
-                            int width, uint32_t *unused)
-{
-    __asm__ volatile(
-        "mov                  %0, %%"REG_a"         \n\t"
-        "1:                                         \n\t"
-        "movq  (%1, %%"REG_a",2), %%mm0             \n\t"
-        "movq 8(%1, %%"REG_a",2), %%mm1             \n\t"
-        "psrlw                $8, %%mm0             \n\t"
-        "psrlw                $8, %%mm1             \n\t"
-        "packuswb          %%mm1, %%mm0             \n\t"
-        "movq              %%mm0, (%2, %%"REG_a")   \n\t"
-        "add                  $8, %%"REG_a"         \n\t"
-        " js                  1b                    \n\t"
-        : : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst+width)
-        : "%"REG_a
-    );
-}
-
-static void RENAME(uyvyToUV)(uint8_t *dstU, uint8_t *dstV,
-                             const uint8_t *src1, const uint8_t *src2,
-                             int width, uint32_t *unused)
-{
-    __asm__ volatile(
-        "movq "MANGLE(bm01010101)", %%mm4           \n\t"
-        "mov                    %0, %%"REG_a"       \n\t"
-        "1:                                         \n\t"
-        "movq    (%1, %%"REG_a",4), %%mm0           \n\t"
-        "movq   8(%1, %%"REG_a",4), %%mm1           \n\t"
-        "pand                %%mm4, %%mm0           \n\t"
-        "pand                %%mm4, %%mm1           \n\t"
-        "packuswb            %%mm1, %%mm0           \n\t"
-        "movq                %%mm0, %%mm1           \n\t"
-        "psrlw                  $8, %%mm0           \n\t"
-        "pand                %%mm4, %%mm1           \n\t"
-        "packuswb            %%mm0, %%mm0           \n\t"
-        "packuswb            %%mm1, %%mm1           \n\t"
-        "movd                %%mm0, (%3, %%"REG_a") \n\t"
-        "movd                %%mm1, (%2, %%"REG_a") \n\t"
-        "add                    $4, %%"REG_a"       \n\t"
-        " js                    1b                  \n\t"
-        : : "g" ((x86_reg)-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
-        : "%"REG_a
-    );
-    assert(src1 == src2);
-}
-
-static av_always_inline void RENAME(nvXXtoUV)(uint8_t *dst1, uint8_t *dst2,
-                                              const uint8_t *src, int width)
-{
-    __asm__ volatile(
-        "movq "MANGLE(bm01010101)", %%mm4           \n\t"
-        "mov                    %0, %%"REG_a"       \n\t"
-        "1:                                         \n\t"
-        "movq    (%1, %%"REG_a",2), %%mm0           \n\t"
-        "movq   8(%1, %%"REG_a",2), %%mm1           \n\t"
-        "movq                %%mm0, %%mm2           \n\t"
-        "movq                %%mm1, %%mm3           \n\t"
-        "pand                %%mm4, %%mm0           \n\t"
-        "pand                %%mm4, %%mm1           \n\t"
-        "psrlw                  $8, %%mm2           \n\t"
-        "psrlw                  $8, %%mm3           \n\t"
-        "packuswb            %%mm1, %%mm0           \n\t"
-        "packuswb            %%mm3, %%mm2           \n\t"
-        "movq                %%mm0, (%2, %%"REG_a") \n\t"
-        "movq                %%mm2, (%3, %%"REG_a") \n\t"
-        "add                    $8, %%"REG_a"       \n\t"
-        " js                    1b                  \n\t"
-        : : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst1+width), "r" (dst2+width)
-        : "%"REG_a
-    );
-}
-
-static void RENAME(nv12ToUV)(uint8_t *dstU, uint8_t *dstV,
-                             const uint8_t *src1, const uint8_t *src2,
-                             int width, uint32_t *unused)
-{
-    RENAME(nvXXtoUV)(dstU, dstV, src1, width);
-}
-
-static void RENAME(nv21ToUV)(uint8_t *dstU, uint8_t *dstV,
-                             const uint8_t *src1, const uint8_t *src2,
-                             int width, uint32_t *unused)
-{
-    RENAME(nvXXtoUV)(dstV, dstU, src1, width);
-}
-#endif /* !COMPILE_TEMPLATE_MMX2 */
-
 static av_always_inline void RENAME(bgr24ToY_mmx)(uint8_t *dst, const uint8_t *src,
                                                   int width, enum PixelFormat srcFormat)
 {
@@ -1856,15 +1715,6 @@ static av_cold void RENAME(sws_init_swScale)(SwsContext *c)
 #endif /* COMPILE_TEMPLATE_MMX2 */
     }
 
-#if !COMPILE_TEMPLATE_MMX2
-    switch(srcFormat) {
-        case PIX_FMT_YUYV422  : c->chrToYV12 = RENAME(yuy2ToUV); break;
-        case PIX_FMT_UYVY422  : c->chrToYV12 = RENAME(uyvyToUV); break;
-        case PIX_FMT_NV12     : c->chrToYV12 = RENAME(nv12ToUV); break;
-        case PIX_FMT_NV21     : c->chrToYV12 = RENAME(nv21ToUV); break;
-        default: break;
-    }
-#endif /* !COMPILE_TEMPLATE_MMX2 */
     if (!c->chrSrcHSubSample) {
         switch(srcFormat) {
         case PIX_FMT_BGR24  : c->chrToYV12 = RENAME(bgr24ToUV); break;
@@ -1874,21 +1724,8 @@ static av_cold void RENAME(sws_init_swScale)(SwsContext *c)
     }
 
     switch (srcFormat) {
-#if !COMPILE_TEMPLATE_MMX2
-    case PIX_FMT_YUYV422  :
-    case PIX_FMT_Y400A    : c->lumToYV12 = RENAME(yuy2ToY); break;
-    case PIX_FMT_UYVY422  : c->lumToYV12 = RENAME(uyvyToY); break;
-#endif /* !COMPILE_TEMPLATE_MMX2 */
     case PIX_FMT_BGR24    : c->lumToYV12 = RENAME(bgr24ToY); break;
     case PIX_FMT_RGB24    : c->lumToYV12 = RENAME(rgb24ToY); break;
     default: break;
     }
-#if !COMPILE_TEMPLATE_MMX2
-    if (c->alpPixBuf) {
-        switch (srcFormat) {
-        case PIX_FMT_Y400A  : c->alpToYV12 = RENAME(yuy2ToY); break;
-        default: break;
-        }
-    }
-#endif /* !COMPILE_TEMPLATE_MMX2 */
 }