lossless_videodsp: move shared functions from huffyuvdsp

Several codecs other than huffyuv use them.

Signed-off-by: James Almer <jamrial@gmail.com>

1 files changed, 0 insertions, 61 deletions

diff --git a/libavcodec/huffyuvdsp.c b/libavcodec/huffyuvdsp.c
index e8a05f6592..2adfc19ff3 100644
--- a/libavcodec/huffyuvdsp.c
+++ b/libavcodec/huffyuvdsp.c
@@ -23,64 +23,6 @@
 #include "mathops.h"
 #include "huffyuvdsp.h"
 
-// 0x7f7f7f7f or 0x7f7f7f7f7f7f7f7f or whatever, depending on the cpu's native arithmetic size
-#define pb_7f (~0UL / 255 * 0x7f)
-#define pb_80 (~0UL / 255 * 0x80)
-
-static void add_bytes_c(uint8_t *dst, uint8_t *src, intptr_t w)
-{
-    long i;
-
-    for (i = 0; i <= w - (int) sizeof(long); i += sizeof(long)) {
-        long a = *(long *) (src + i);
-        long b = *(long *) (dst + i);
-        *(long *) (dst + i) = ((a & pb_7f) + (b & pb_7f)) ^ ((a ^ b) & pb_80);
-    }
-    for (; i < w; i++)
-        dst[i + 0] += src[i + 0];
-}
-
-static void add_hfyu_median_pred_c(uint8_t *dst, const uint8_t *src1,
-                                   const uint8_t *diff, intptr_t w,
-                                   int *left, int *left_top)
-{
-    int i;
-    uint8_t l, lt;
-
-    l  = *left;
-    lt = *left_top;
-
-    for (i = 0; i < w; i++) {
-        l      = mid_pred(l, src1[i], (l + src1[i] - lt) & 0xFF) + diff[i];
-        lt     = src1[i];
-        dst[i] = l;
-    }
-
-    *left     = l;
-    *left_top = lt;
-}
-
-static int add_hfyu_left_pred_c(uint8_t *dst, const uint8_t *src, intptr_t w,
-                                int acc)
-{
-    int i;
-
-    for (i = 0; i < w - 1; i++) {
-        acc   += src[i];
-        dst[i] = acc;
-        i++;
-        acc   += src[i];
-        dst[i] = acc;
-    }
-
-    for (; i < w; i++) {
-        acc   += src[i];
-        dst[i] = acc;
-    }
-
-    return acc;
-}
-
 static void add_hfyu_left_pred_bgr32_c(uint8_t *dst, const uint8_t *src,
                                        intptr_t w, uint8_t *left)
 {
@@ -107,9 +49,6 @@ static void add_hfyu_left_pred_bgr32_c(uint8_t *dst, const uint8_t *src,
 
 av_cold void ff_huffyuvdsp_init(HuffYUVDSPContext *c)
 {
-    c->add_bytes                = add_bytes_c;
-    c->add_hfyu_median_pred     = add_hfyu_median_pred_c;
-    c->add_hfyu_left_pred       = add_hfyu_left_pred_c;
     c->add_hfyu_left_pred_bgr32 = add_hfyu_left_pred_bgr32_c;
 
     if (ARCH_X86)