diff options
| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-06-12 06:51:12 +0300 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-06-15 05:56:37 +0300 |
| commit | 40e6575aa3eed64cd32bf28c00ae57edc5acb25a (patch) | |
| tree | 3bc6e3ebca1972cf51f04e30f227e46ff204ec05 /libswscale/swscale.c | |
| parent | e5f6707a7b91664491041526ef3cce7412258b89 (diff) | |
all: Replace if (ARCH_FOO) checks by #if ARCH_FOO
This is more spec-compliant because it does not rely
on dead-code elimination by the compiler. Especially
MSVC has problems with this, as can be seen in
https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/296373.html
or
https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/297022.html
This commit does not eliminate every instance where we rely
on dead code elimination: It only tackles branching to
the initialization of arch-specific dsp code, not e.g. all
uses of CONFIG_ and HAVE_ checks. But maybe it is already
enough to compile FFmpeg with MSVC with whole-programm-optimizations
enabled (if one does not disable too many components).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libswscale/swscale.c')
| -rw-r--r-- | libswscale/swscale.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/libswscale/swscale.c b/libswscale/swscale.c index 3ed547d526..7b40f49da4 100644 --- a/libswscale/swscale.c +++ b/libswscale/swscale.c @@ -590,14 +590,15 @@ void ff_sws_init_scale(SwsContext *c) { sws_init_swscale(c); - if (ARCH_PPC) - ff_sws_init_swscale_ppc(c); - if (ARCH_X86) - ff_sws_init_swscale_x86(c); - if (ARCH_AARCH64) - ff_sws_init_swscale_aarch64(c); - if (ARCH_ARM) - ff_sws_init_swscale_arm(c); +#if ARCH_PPC + ff_sws_init_swscale_ppc(c); +#elif ARCH_X86 + ff_sws_init_swscale_x86(c); +#elif ARCH_AARCH64 + ff_sws_init_swscale_aarch64(c); +#elif ARCH_ARM + ff_sws_init_swscale_arm(c); +#endif } static void reset_ptr(const uint8_t *src[], enum AVPixelFormat format) |