Fix warnings for missing prototypes

- Add static to internal scale and rotate functions
- Remove unittest that tested an internal scale function
- Remove unused private functions
- Include missing scale_argb.h header
- Bump version and apply clang format

Bug: libyuv:830
Change-Id: I45bab0423b86334f9707f935aedd0c6efc442dd4
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4658956
Reviewed-by: Mirko Bonadei <mbonadei@chromium.org>

1 files changed, 0 insertions, 29 deletions

diff --git a/source/scale_common.cc b/source/scale_common.cc
index 77455903..d07a39af 100644
--- a/source/scale_common.cc
+++ b/source/scale_common.cc
@@ -1964,35 +1964,6 @@ void ScaleSlope(int src_width,
 }
 #undef CENTERSTART
 
-// Read 8x2 upsample with filtering and write 16x1.
-// actually reads an extra pixel, so 9x2.
-void ScaleRowUp2_16_C(const uint16_t* src_ptr,
-                      ptrdiff_t src_stride,
-                      uint16_t* dst,
-                      int dst_width) {
-  const uint16_t* src2 = src_ptr + src_stride;
-
-  int x;
-  for (x = 0; x < dst_width - 1; x += 2) {
-    uint16_t p0 = src_ptr[0];
-    uint16_t p1 = src_ptr[1];
-    uint16_t p2 = src2[0];
-    uint16_t p3 = src2[1];
-    dst[0] = (p0 * 9 + p1 * 3 + p2 * 3 + p3 + 8) >> 4;
-    dst[1] = (p0 * 3 + p1 * 9 + p2 + p3 * 3 + 8) >> 4;
-    ++src_ptr;
-    ++src2;
-    dst += 2;
-  }
-  if (dst_width & 1) {
-    uint16_t p0 = src_ptr[0];
-    uint16_t p1 = src_ptr[1];
-    uint16_t p2 = src2[0];
-    uint16_t p3 = src2[1];
-    dst[0] = (p0 * 9 + p1 * 3 + p2 * 3 + p3 + 8) >> 4;
-  }
-}
-
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv