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lsws/ppc/yuv2rgb_altivec: Fix build in non-VSX environments with Clang

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Add a check for the existence of the vec_xl() function. Clang provides
the function even with VSX not enabled.

(cherry picked from commit 30a8641465)
Signed-off-by: Brad Smith <brad@comstyle.com>
This commit is contained in:
Brad Smith
2023-08-18 15:32:39 -04:00
committed by Brad Smith
parent 76913f0b9f
commit c7e3a1b6af
2 changed files with 10 additions and 2 deletions
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8
configure vendored
View File

@@ -2117,6 +2117,7 @@ ARCH_EXT_LIST_PPC="
ldbrx ldbrx
power8 power8
ppc4xx ppc4xx
vec_xl
vsx vsx
" "
@@ -2625,6 +2626,7 @@ altivec_deps="ppc"
dcbzl_deps="ppc" dcbzl_deps="ppc"
ldbrx_deps="ppc" ldbrx_deps="ppc"
ppc4xx_deps="ppc" ppc4xx_deps="ppc"
vec_xl_deps="altivec"
vsx_deps="altivec" vsx_deps="altivec"
power8_deps="vsx" power8_deps="vsx"
@@ -6085,6 +6087,11 @@ elif enabled ppc; then
check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)" check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
fi fi
if enabled altivec && disabled vsx; then
check_cc vec_xl altivec.h "const unsigned char *y1i = { 0 };
vector unsigned char y0 = vec_xl(0, y1i);"
fi
elif enabled x86; then elif enabled x86; then
check_builtin rdtsc intrin.h "__rdtsc()" check_builtin rdtsc intrin.h "__rdtsc()"
@@ -7524,6 +7531,7 @@ if enabled ppc; then
echo "POWER8 enabled ${power8-no}" echo "POWER8 enabled ${power8-no}"
echo "PPC 4xx optimizations ${ppc4xx-no}" echo "PPC 4xx optimizations ${ppc4xx-no}"
echo "dcbzl available ${dcbzl-no}" echo "dcbzl available ${dcbzl-no}"
echo "vec_xl available ${vec_xl-no}"
fi fi
if enabled loongarch; then if enabled loongarch; then
echo "LSX enabled ${lsx-no}" echo "LSX enabled ${lsx-no}"

4
libswscale/ppc/yuv2rgb_altivec.c
View File

@@ -284,7 +284,7 @@ static inline void cvtyuvtoRGB(SwsContext *c, vector signed short Y,
* ------------------------------------------------------------------------------ * ------------------------------------------------------------------------------
*/ */
#if !HAVE_VSX #if !HAVE_VEC_XL
static inline vector unsigned char vec_xl(signed long long offset, const ubyte *addr) static inline vector unsigned char vec_xl(signed long long offset, const ubyte *addr)
{ {
const vector unsigned char *v_addr = (const vector unsigned char *) (addr + offset); const vector unsigned char *v_addr = (const vector unsigned char *) (addr + offset);
@@ -292,7 +292,7 @@ static inline vector unsigned char vec_xl(signed long long offset, const ubyte *
return (vector unsigned char) vec_perm(v_addr[0], v_addr[1], align_perm); return (vector unsigned char) vec_perm(v_addr[0], v_addr[1], align_perm);
} }
#endif /* !HAVE_VSX */ #endif /* !HAVE_VEC_XL */
#define DEFCSP420_CVT(name, out_pixels) \ #define DEFCSP420_CVT(name, out_pixels) \
static int altivec_ ## name(SwsContext *c, const unsigned char **in, \ static int altivec_ ## name(SwsContext *c, const unsigned char **in, \