In this case GCC does not treat a const variable initialized
to the compile-time constant "3" as a compile-time constant
and errors out because the argument is not a literal value.
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
A similar issue exists in libswscale/ppc/swscale_vsx.c,
but fixing this would be more involved (making templates
out of always-inline functions...).
libswscale/ppc/swscale_altivec.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/libswscale/ppc/swscale_altivec.c b/libswscale/ppc/swscale_altivec.c
index 1630355f51..8e35e0372f 100644
--- a/libswscale/ppc/swscale_altivec.c
+++ b/libswscale/ppc/swscale_altivec.c
@@ -107,6 +107,8 @@
#endif /* HAVE_BIGENDIAN */
+#define SHIFT 3
+
#define output_pixel(pos, val, bias, signedness) \
if (big_endian) { \
AV_WB16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \
@@ -149,12 +151,11 @@ yuv2plane1_float_bswap_u(const int32_t *src, uint32_t
*dest, int dstW, int start
static void yuv2plane1_float_altivec(const int32_t *src, float *dest, int dstW)
{
const int dst_u = -(uintptr_t)dest & 3;
- const int shift = 3;
- const int add = (1 << (shift - 1));
+ const int add = (1 << (SHIFT - 1));
const int clip = (1 << 16) - 1;
const float fmult = 1.0f / 65535.0f;
const vec_u32 vadd = (vec_u32) {add, add, add, add};
- const vec_u32 vshift = (vec_u32) vec_splat_u32(shift);
+ const vec_u32 vshift = (vec_u32) vec_splat_u32(SHIFT);
const vec_u32 vlargest = (vec_u32) {clip, clip, clip, clip};
const vec_f vmul = (vec_f) {fmult, fmult, fmult, fmult};
const vec_f vzero = (vec_f) {0, 0, 0, 0};
@@ -182,12 +183,11 @@ static void yuv2plane1_float_altivec(const int32_t *src,
float *dest, int dstW)
static void yuv2plane1_float_bswap_altivec(const int32_t *src, uint32_t *dest,
int dstW)
{
const int dst_u = -(uintptr_t)dest & 3;
- const int shift = 3;
- const int add = (1 << (shift - 1));
+ const int add = (1 << (SHIFT - 1));
const int clip = (1 << 16) - 1;
const float fmult = 1.0f / 65535.0f;
const vec_u32 vadd = (vec_u32) {add, add, add, add};
- const vec_u32 vshift = (vec_u32) vec_splat_u32(shift);
+ const vec_u32 vshift = (vec_u32) vec_splat_u32(SHIFT);
const vec_u32 vlargest = (vec_u32) {clip, clip, clip, clip};
const vec_f vmul = (vec_f) {fmult, fmult, fmult, fmult};
const vec_f vzero = (vec_f) {0, 0, 0, 0};
--
2.40.1
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