Use a macro to abstract the endianness.
---
libavcodec/ppc/pixblockdsp.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
libavutil/ppc/util_altivec.h | 12 ++++++++++++
2 files changed, 56 insertions(+)
diff --git a/libavcodec/ppc/pixblockdsp.c b/libavcodec/ppc/pixblockdsp.c
index 2c28e29..9cac70e 100644
--- a/libavcodec/ppc/pixblockdsp.c
+++ b/libavcodec/ppc/pixblockdsp.c
@@ -133,6 +133,40 @@ static void diff_pixels_altivec(int16_t *restrict block,
const uint8_t *s1,
#endif /* HAVE_ALTIVEC */
+#if HAVE_VSX
+static void get_pixels_vsx(int16_t *restrict block, const uint8_t *pixels,
+ int line_size)
+{
+ int i;
+ for (i = 0; i < 8; i++) {
+ vec_s16 shorts = vsx_ld_u8_s16(0, pixels);
+
+ vec_vsx_st(shorts, i * 16, block);
+
+ pixels += line_size;
+ }
+}
+
+static void diff_pixels_vsx(int16_t *restrict block, const uint8_t *s1,
+ const uint8_t *s2, int stride)
+{
+ int i;
+ vec_s16 shorts1, shorts2;
+ for (i = 0; i < 8; i++) {
+ shorts1 = vsx_ld_u8_s16(0, s1);
+ shorts2 = vsx_ld_u8_s16(0, s2);
+
+ shorts1 = vec_sub(shorts1, shorts2);
+
+ vec_vsx_st(shorts1, 0, block);
+
+ s1 += stride;
+ s2 += stride;
+ block += 8;
+ }
+}
+#endif /* HAVE_VSX */
+
av_cold void ff_pixblockdsp_init_ppc(PixblockDSPContext *c,
AVCodecContext *avctx,
unsigned high_bit_depth)
@@ -147,4 +181,14 @@ av_cold void ff_pixblockdsp_init_ppc(PixblockDSPContext *c,
c->get_pixels = get_pixels_altivec;
}
#endif /* HAVE_ALTIVEC */
+
+#if HAVE_VSX
+ if (!PPC_VSX(av_get_cpu_flags()))
+ return;
+
+ c->diff_pixels = diff_pixels_vsx;
+
+ if (!high_bit_depth)
+ c->get_pixels = get_pixels_vsx;
+#endif /* HAVE_VSX */
}
diff --git a/libavutil/ppc/util_altivec.h b/libavutil/ppc/util_altivec.h
index 8b31327..19d411d 100644
--- a/libavutil/ppc/util_altivec.h
+++ b/libavutil/ppc/util_altivec.h
@@ -111,4 +111,16 @@ static inline vec_u8 load_with_perm_vec(int offset,
uint8_t *src, vec_u8 perm_ve
#endif /* HAVE_ALTIVEC */
+#if HAVE_VSX
+#if HAVE_BIGENDIAN
+#define vsx_ld_u8_s16(off, p) \
+ ((vec_s16)vec_mergeh((vec_u8)vec_splat_u8(0), \
+ (vec_u8)vec_vsx_ld((off, (p)))
+#else
+#define vsx_ld_u8_s16(off, p) \
+ ((vec_s16)vec_mergeh((vec_u8)vec_vsx_ld((off), (p)), \
+ (vec_u8)vec_splat_u8(0)))
+#endif /* HAVE_BIGENDIAN */
+#endif /* HAVE_VSX */
+
#endif /* AVUTIL_PPC_UTIL_ALTIVEC_H */
--
1.9.0
_______________________________________________
libav-devel mailing list
libav-devel@libav.org
https://lists.libav.org/mailman/listinfo/libav-devel
