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Fix warnings for missing prototypes

Browse Source 
- 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>
This commit is contained in:
Frank Barchard 2023-06-29 22:53:42 -07:00 committed by Frank Barchard
parent a34a0ba687
commit 650be7496f
14 changed files with 161 additions and 280 deletions
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2
README.chromium
View File

@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 1873
Version: 1874
License: BSD
License File: LICENSE

9
include/libyuv/planar_functions.h
View File

@ -827,15 +827,6 @@ int ARGBCopyYToAlpha(const uint8_t* src_y,
int width,
int height);
typedef void (*ARGBBlendRow)(const uint8_t* src_argb0,
const uint8_t* src_argb1,
uint8_t* dst_argb,
int width);
// Get function to Alpha Blend ARGB pixels and store to destination.
LIBYUV_API
ARGBBlendRow GetARGBBlend();
// Alpha Blend ARGB images and store to destination.
// Source is pre-multiplied by alpha using ARGBAttenuate.
// Alpha of destination is set to 255.

2
include/libyuv/version.h
View File

@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 1873
#define LIBYUV_VERSION 1874
#endif // INCLUDE_LIBYUV_VERSION_H_

64
source/planar_functions.cc
View File

@ -2783,17 +2783,38 @@ int RGB24Mirror(const uint8_t* src_rgb24,
return 0;
}
// Get a blender that optimized for the CPU and pixel count.
// As there are 6 blenders to choose from, the caller should try to use
// the same blend function for all pixels if possible.
// Alpha Blend 2 ARGB images and store to destination.
LIBYUV_API
ARGBBlendRow GetARGBBlend() {
int ARGBBlend(const uint8_t* src_argb0,
int src_stride_argb0,
const uint8_t* src_argb1,
int src_stride_argb1,
uint8_t* dst_argb,
int dst_stride_argb,
int width,
int height) {
int y;
void (*ARGBBlendRow)(const uint8_t* src_argb, const uint8_t* src_argb1,
uint8_t* dst_argb, int width) = ARGBBlendRow_C;
if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_argb = dst_argb + (height - 1) * dst_stride_argb;
dst_stride_argb = -dst_stride_argb;
}
// Coalesce rows.
if (src_stride_argb0 == width * 4 && src_stride_argb1 == width * 4 &&
dst_stride_argb == width * 4) {
width *= height;
height = 1;
src_stride_argb0 = src_stride_argb1 = dst_stride_argb = 0;
}
#if defined(HAS_ARGBBLENDROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
ARGBBlendRow = ARGBBlendRow_SSSE3;
return ARGBBlendRow;
}
#endif
#if defined(HAS_ARGBBLENDROW_NEON)
@ -2811,39 +2832,6 @@ ARGBBlendRow GetARGBBlend() {
ARGBBlendRow = ARGBBlendRow_LSX;
}
#endif
return ARGBBlendRow;
}
// Alpha Blend 2 ARGB images and store to destination.
LIBYUV_API
int ARGBBlend(const uint8_t* src_argb0,
int src_stride_argb0,
const uint8_t* src_argb1,
int src_stride_argb1,
uint8_t* dst_argb,
int dst_stride_argb,
int width,
int height) {
int y;
void (*ARGBBlendRow)(const uint8_t* src_argb, const uint8_t* src_argb1,
uint8_t* dst_argb, int width) = GetARGBBlend();
if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_argb = dst_argb + (height - 1) * dst_stride_argb;
dst_stride_argb = -dst_stride_argb;
}
// Coalesce rows.
if (src_stride_argb0 == width * 4 && src_stride_argb1 == width * 4 &&
dst_stride_argb == width * 4) {
width *= height;
height = 1;
src_stride_argb0 = src_stride_argb1 = dst_stride_argb = 0;
}
for (y = 0; y < height; ++y) {
ARGBBlendRow(src_argb0, src_argb1, dst_argb, width);
src_argb0 += src_stride_argb0;

13
source/rotate.cc
View File

@ -489,13 +489,12 @@ int RotatePlane(const uint8_t* src,
return -1;
}
LIBYUV_API
void TransposePlane_16(const uint16_t* src,
int src_stride,
uint16_t* dst,
int dst_stride,
int width,
int height) {
static void TransposePlane_16(const uint16_t* src,
int src_stride,
uint16_t* dst,
int dst_stride,
int width,
int height) {
int i = height;
// Work across the source in 8x8 tiles
while (i >= 8) {

31
source/rotate_common.cc
View File

@ -120,37 +120,6 @@ void TransposeWx8_16_C(const uint16_t* src,
}
}
void TransposeUVWx8_16_C(const uint16_t* src,
int src_stride,
uint16_t* dst_a,
int dst_stride_a,
uint16_t* dst_b,
int dst_stride_b,
int width) {
int i;
for (i = 0; i < width; ++i) {
dst_a[0] = src[0 * src_stride + 0];
dst_b[0] = src[0 * src_stride + 1];
dst_a[1] = src[1 * src_stride + 0];
dst_b[1] = src[1 * src_stride + 1];
dst_a[2] = src[2 * src_stride + 0];
dst_b[2] = src[2 * src_stride + 1];
dst_a[3] = src[3 * src_stride + 0];
dst_b[3] = src[3 * src_stride + 1];
dst_a[4] = src[4 * src_stride + 0];
dst_b[4] = src[4 * src_stride + 1];
dst_a[5] = src[5 * src_stride + 0];
dst_b[5] = src[5 * src_stride + 1];
dst_a[6] = src[6 * src_stride + 0];
dst_b[6] = src[6 * src_stride + 1];
dst_a[7] = src[7 * src_stride + 0];
dst_b[7] = src[7 * src_stride + 1];
src += 2;
dst_a += dst_stride_a;
dst_b += dst_stride_b;
}
}
void TransposeWxH_16_C(const uint16_t* src,
int src_stride,
uint16_t* dst,

4
source/row_neon64.cc
View File

@ -3449,8 +3449,8 @@ void ARGBAttenuateRow_NEON(const uint8_t* src_argb,
"subs %w2, %w2, #8 \n" // 8 processed per loop.
"umull v4.8h, v0.8b, v3.8b \n" // b * a
"prfm pldl1keep, [%0, 448] \n"
"umull v5.8h, v1.8b, v3.8b \n" // g * a
"umull v6.8h, v2.8b, v3.8b \n" // r * a
"umull v5.8h, v1.8b, v3.8b \n" // g * a
"umull v6.8h, v2.8b, v3.8b \n" // r * a
"addhn v0.8b, v4.8h, v7.8h \n" // (b + 255) >> 8
"addhn v1.8b, v5.8h, v7.8h \n" // (g + 255) >> 8
"addhn v2.8b, v6.8h, v7.8h \n" // (r + 255) >> 8

6
source/row_rvv.cc
View File

@ -18,7 +18,8 @@
#include "libyuv/row.h"
// This module is for clang rvv. GCC hasn't supported segment load & store.
#if !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector) && defined(__clang__)
#if !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector) && \
defined(__clang__)
#include <assert.h>
#include <riscv_vector.h>
@ -988,4 +989,5 @@ void ARGBCopyYToAlphaRow_RVV(const uint8_t* src, uint8_t* dst, int width) {
} // namespace libyuv
#endif
#endif // !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector) && defined(__clang__)
#endif // !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector) &&
// defined(__clang__)

168
source/scale.cc
View File

@ -1077,15 +1077,15 @@ static void ScalePlaneBox_16(int src_width,
}
// Scale plane down with bilinear interpolation.
void ScalePlaneBilinearDown(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr,
enum FilterMode filtering) {
static void ScalePlaneBilinearDown(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr,
enum FilterMode filtering) {
// Initial source x/y coordinate and step values as 16.16 fixed point.
int x = 0;
int y = 0;
@ -1205,15 +1205,15 @@ void ScalePlaneBilinearDown(int src_width,
free_aligned_buffer_64(row);
}
void ScalePlaneBilinearDown_16(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr,
enum FilterMode filtering) {
static void ScalePlaneBilinearDown_16(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr,
enum FilterMode filtering) {
// Initial source x/y coordinate and step values as 16.16 fixed point.
int x = 0;
int y = 0;
@ -1297,15 +1297,15 @@ void ScalePlaneBilinearDown_16(int src_width,
}
// Scale up down with bilinear interpolation.
void ScalePlaneBilinearUp(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr,
enum FilterMode filtering) {
static void ScalePlaneBilinearUp(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr,
enum FilterMode filtering) {
int j;
// Initial source x/y coordinate and step values as 16.16 fixed point.
int x = 0;
@ -1454,14 +1454,14 @@ void ScalePlaneBilinearUp(int src_width,
// This is an optimized version for scaling up a plane to 2 times of
// its original width, using linear interpolation.
// This is used to scale U and V planes of I422 to I444.
void ScalePlaneUp2_Linear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr) {
static void ScalePlaneUp2_Linear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr) {
void (*ScaleRowUp)(const uint8_t* src_ptr, uint8_t* dst_ptr, int dst_width) =
ScaleRowUp2_Linear_Any_C;
int i;
@ -1513,14 +1513,14 @@ void ScalePlaneUp2_Linear(int src_width,
// This is an optimized version for scaling up a plane to 2 times of
// its original size, using bilinear interpolation.
// This is used to scale U and V planes of I420 to I444.
void ScalePlaneUp2_Bilinear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr) {
static void ScalePlaneUp2_Bilinear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr) {
void (*Scale2RowUp)(const uint8_t* src_ptr, ptrdiff_t src_stride,
uint8_t* dst_ptr, ptrdiff_t dst_stride, int dst_width) =
ScaleRowUp2_Bilinear_Any_C;
@ -1573,14 +1573,14 @@ void ScalePlaneUp2_Bilinear(int src_width,
// its original width, using linear interpolation.
// stride is in count of uint16_t.
// This is used to scale U and V planes of I210 to I410 and I212 to I412.
void ScalePlaneUp2_12_Linear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
static void ScalePlaneUp2_12_Linear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
void (*ScaleRowUp)(const uint16_t* src_ptr, uint16_t* dst_ptr,
int dst_width) = ScaleRowUp2_Linear_16_Any_C;
int i;
@ -1627,14 +1627,14 @@ void ScalePlaneUp2_12_Linear(int src_width,
// its original size, using bilinear interpolation.
// stride is in count of uint16_t.
// This is used to scale U and V planes of I010 to I410 and I012 to I412.
void ScalePlaneUp2_12_Bilinear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
static void ScalePlaneUp2_12_Bilinear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
void (*Scale2RowUp)(const uint16_t* src_ptr, ptrdiff_t src_stride,
uint16_t* dst_ptr, ptrdiff_t dst_stride, int dst_width) =
ScaleRowUp2_Bilinear_16_Any_C;
@ -1674,14 +1674,14 @@ void ScalePlaneUp2_12_Bilinear(int src_width,
}
}
void ScalePlaneUp2_16_Linear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
static void ScalePlaneUp2_16_Linear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
void (*ScaleRowUp)(const uint16_t* src_ptr, uint16_t* dst_ptr,
int dst_width) = ScaleRowUp2_Linear_16_Any_C;
int i;
@ -1723,14 +1723,14 @@ void ScalePlaneUp2_16_Linear(int src_width,
}
}
void ScalePlaneUp2_16_Bilinear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
static void ScalePlaneUp2_16_Bilinear(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
void (*Scale2RowUp)(const uint16_t* src_ptr, ptrdiff_t src_stride,
uint16_t* dst_ptr, ptrdiff_t dst_stride, int dst_width) =
ScaleRowUp2_Bilinear_16_Any_C;
@ -1770,15 +1770,15 @@ void ScalePlaneUp2_16_Bilinear(int src_width,
}
}
void ScalePlaneBilinearUp_16(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr,
enum FilterMode filtering) {
static void ScalePlaneBilinearUp_16(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr,
enum FilterMode filtering) {
int j;
// Initial source x/y coordinate and step values as 16.16 fixed point.
int x = 0;

1
source/scale_argb.cc
View File

@ -16,6 +16,7 @@
#include "libyuv/cpu_id.h"
#include "libyuv/planar_functions.h" // For CopyARGB
#include "libyuv/row.h"
#include "libyuv/scale_argb.h"
#include "libyuv/scale_row.h"
#ifdef __cplusplus

29
source/scale_common.cc
View File

@ -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

6
source/scale_rvv.cc
View File

@ -19,7 +19,8 @@
#include "libyuv/scale_row.h"
// This module is for clang rvv. GCC hasn't supported segment load & store.
#if !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector) && defined(__clang__)
#if !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector) && \
defined(__clang__)
#include <riscv_vector.h>
#ifdef __cplusplus
@ -599,4 +600,5 @@ void ScaleUVRowDownEven_RVV(const uint8_t* src_uv,
} // namespace libyuv
#endif
#endif // !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector) && defined(__clang__)
#endif // !defined(LIBYUV_DISABLE_RVV) && defined(__riscv_vector) &&
// defined(__clang__)

64
source/scale_uv.cc
View File

@ -657,14 +657,14 @@ static void ScaleUVBilinearUp(int src_width,
// This is an optimized version for scaling up a plane to 2 times of
// its original width, using linear interpolation.
// This is used to scale U and V planes of NV16 to NV24.
void ScaleUVLinearUp2(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_uv,
uint8_t* dst_uv) {
static void ScaleUVLinearUp2(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_uv,
uint8_t* dst_uv) {
void (*ScaleRowUp)(const uint8_t* src_uv, uint8_t* dst_uv, int dst_width) =
ScaleUVRowUp2_Linear_Any_C;
int i;
@ -710,14 +710,14 @@ void ScaleUVLinearUp2(int src_width,
// This is an optimized version for scaling up a plane to 2 times of
// its original size, using bilinear interpolation.
// This is used to scale U and V planes of NV12 to NV24.
void ScaleUVBilinearUp2(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr) {
static void ScaleUVBilinearUp2(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint8_t* src_ptr,
uint8_t* dst_ptr) {
void (*Scale2RowUp)(const uint8_t* src_ptr, ptrdiff_t src_stride,
uint8_t* dst_ptr, ptrdiff_t dst_stride, int dst_width) =
ScaleUVRowUp2_Bilinear_Any_C;
@ -764,14 +764,14 @@ void ScaleUVBilinearUp2(int src_width,
// This is an optimized version for scaling up a plane to 2 times of
// its original width, using linear interpolation.
// This is used to scale U and V planes of P210 to P410.
void ScaleUVLinearUp2_16(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_uv,
uint16_t* dst_uv) {
static void ScaleUVLinearUp2_16(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_uv,
uint16_t* dst_uv) {
void (*ScaleRowUp)(const uint16_t* src_uv, uint16_t* dst_uv, int dst_width) =
ScaleUVRowUp2_Linear_16_Any_C;
int i;
@ -817,14 +817,14 @@ void ScaleUVLinearUp2_16(int src_width,
// This is an optimized version for scaling up a plane to 2 times of
// its original size, using bilinear interpolation.
// This is used to scale U and V planes of P010 to P410.
void ScaleUVBilinearUp2_16(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
static void ScaleUVBilinearUp2_16(int src_width,
int src_height,
int dst_width,
int dst_height,
int src_stride,
int dst_stride,
const uint16_t* src_ptr,
uint16_t* dst_ptr) {
void (*Scale2RowUp)(const uint16_t* src_ptr, ptrdiff_t src_stride,
uint16_t* dst_ptr, ptrdiff_t dst_stride, int dst_width) =
ScaleUVRowUp2_Bilinear_16_Any_C;

42
unit_test/scale_test.cc
View File

@ -1217,48 +1217,6 @@ TEST_F(LibYUVScaleTest, TestScaleRowDown2Box_Odd_SSSE3) {
}
#endif // HAS_SCALEROWDOWN2_SSSE3
extern "C" void ScaleRowUp2_16_NEON(const uint16_t* src_ptr,
ptrdiff_t src_stride,
uint16_t* dst,
int dst_width);
extern "C" void ScaleRowUp2_16_C(const uint16_t* src_ptr,
ptrdiff_t src_stride,
uint16_t* dst,
int dst_width);
TEST_F(LibYUVScaleTest, TestScaleRowUp2_16) {
SIMD_ALIGNED(uint16_t orig_pixels[640 * 2 + 1]); // 2 rows + 1 pixel overrun.
SIMD_ALIGNED(uint16_t dst_pixels_opt[1280]);
SIMD_ALIGNED(uint16_t dst_pixels_c[1280]);
memset(orig_pixels, 0, sizeof(orig_pixels));
memset(dst_pixels_opt, 1, sizeof(dst_pixels_opt));
memset(dst_pixels_c, 2, sizeof(dst_pixels_c));
for (int i = 0; i < 640 * 2 + 1; ++i) {
orig_pixels[i] = i;
}
ScaleRowUp2_16_C(&orig_pixels[0], 640, &dst_pixels_c[0], 1280);
for (int i = 0; i < benchmark_pixels_div1280_; ++i) {
#if !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__)
int has_neon = TestCpuFlag(kCpuHasNEON);
if (has_neon) {
ScaleRowUp2_16_NEON(&orig_pixels[0], 640, &dst_pixels_opt[0], 1280);
} else {
ScaleRowUp2_16_C(&orig_pixels[0], 640, &dst_pixels_opt[0], 1280);
}
#else
ScaleRowUp2_16_C(&orig_pixels[0], 640, &dst_pixels_opt[0], 1280);
#endif
}
for (int i = 0; i < 1280; ++i) {
EXPECT_EQ(dst_pixels_c[i], dst_pixels_opt[i]);
}
EXPECT_EQ(dst_pixels_c[0], (0 * 9 + 1 * 3 + 640 * 3 + 641 * 1 + 8) / 16);
EXPECT_EQ(dst_pixels_c[1279], 800);
}
extern "C" void ScaleRowDown2Box_16_NEON(const uint16_t* src_ptr,
ptrdiff_t src_stride,
uint16_t* dst,