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libyuv
Commit 545a51c1 authored by fbarchard@google.com's avatar fbarchard@google.com
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use scale for subsampling to handle odd source width to even destination width. 

BUG=289
TEST=drmemory
R=nfullagar@google.com, ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/4779004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@884 16f28f9a-4ce2-e073-06de-1de4eb20be90
parent 0014ce00
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Showing with 35 additions and 103 deletions
README.chromium
View file @ 545a51c1
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 883
Version: 884
License: BSD
License File: LICENSE
......
include/libyuv/version.h
View file @ 545a51c1
......@@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 883
#define LIBYUV_VERSION 884
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT
source/convert.cc
View file @ 545a51c1
......@@ -58,6 +58,8 @@ int I420Copy(const uint8* src_y, int src_stride_y,
return 0;
}
// 422 chroma is 1/2 width, 1x height
// 420 chroma is 1/2 width, 1/2 height
LIBYUV_API
int I422ToI420(const uint8* src_y, int src_stride_y,
const uint8* src_u, int src_stride_u,
......@@ -81,73 +83,29 @@ int I422ToI420(const uint8* src_y, int src_stride_y,
src_stride_u = -src_stride_u;
src_stride_v = -src_stride_v;
}
int halfwidth = (width + 1) >> 1;
void (*HalfRow)(const uint8* src_uv, int src_uv_stride,
uint8* dst_uv, int pix) = HalfRow_C;
#if defined(HAS_HALFROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(halfwidth, 16) &&
IS_ALIGNED(src_u, 16) && IS_ALIGNED(src_stride_u, 16) &&
IS_ALIGNED(src_v, 16) && IS_ALIGNED(src_stride_v, 16) &&
IS_ALIGNED(dst_u, 16) && IS_ALIGNED(dst_stride_u, 16) &&
IS_ALIGNED(dst_v, 16) && IS_ALIGNED(dst_stride_v, 16)) {
HalfRow = HalfRow_SSE2;
}
#endif
#if defined(HAS_HALFROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2) && IS_ALIGNED(halfwidth, 32)) {
HalfRow = HalfRow_AVX2;
}
#endif
#if defined(HAS_HALFROW_NEON)
if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(halfwidth, 16)) {
HalfRow = HalfRow_NEON;
}
#endif
// Copy Y plane
if (dst_y) {
CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
}
// SubSample U plane.
int y;
for (y = 0; y < height - 1; y += 2) {
HalfRow(src_u, src_stride_u, dst_u, halfwidth);
src_u += src_stride_u * 2;
dst_u += dst_stride_u;
}
if (height & 1) {
HalfRow(src_u, 0, dst_u, halfwidth);
}
int halfwidth = (width + 1) >> 1;
int halfheight = (height + 1) >> 1;
// SubSample V plane.
for (y = 0; y < height - 1; y += 2) {
HalfRow(src_v, src_stride_v, dst_v, halfwidth);
src_v += src_stride_v * 2;
dst_v += dst_stride_v;
}
if (height & 1) {
HalfRow(src_v, 0, dst_v, halfwidth);
}
// Resample U plane.
ScalePlane(src_u, src_stride_u, halfwidth, height,
dst_u, dst_stride_u, halfwidth, halfheight,
kFilterBilinear);
// Resample V plane.
ScalePlane(src_v, src_stride_v, halfwidth, height,
dst_v, dst_stride_v, halfwidth, halfheight,
kFilterBilinear);
return 0;
}
// Blends 32x2 pixels to 16x1
// source in scale.cc
#if !defined(LIBYUV_DISABLE_NEON) && \
(defined(__ARM_NEON__) || defined(LIBYUV_NEON))
#define HAS_SCALEROWDOWN2_NEON
void ScaleRowDown2Box_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst, int dst_width);
#elif !defined(LIBYUV_DISABLE_X86) && \
(defined(_M_IX86) || defined(__x86_64__) || defined(__i386__))
void ScaleRowDown2Box_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
#endif
void ScaleRowDown2Box_C(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width);
// 444 chroma is 1x width, 1x height
// 420 chroma is 1/2 width, 1/2 height
LIBYUV_API
int I444ToI420(const uint8* src_y, int src_stride_y,
const uint8* src_u, int src_stride_u,
......@@ -171,54 +129,27 @@ int I444ToI420(const uint8* src_y, int src_stride_y,
src_stride_u = -src_stride_u;
src_stride_v = -src_stride_v;
}
int halfwidth = (width + 1) >> 1;
void (*ScaleRowDown2)(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width) = ScaleRowDown2Box_C;
#if defined(HAS_SCALEROWDOWN2_NEON)
if (TestCpuFlag(kCpuHasNEON) &&
IS_ALIGNED(halfwidth, 16)) {
ScaleRowDown2 = ScaleRowDown2Box_NEON;
}
#elif defined(HAS_SCALEROWDOWN2_SSE2)
if (TestCpuFlag(kCpuHasSSE2) &&
IS_ALIGNED(halfwidth, 16) &&
IS_ALIGNED(src_u, 16) && IS_ALIGNED(src_stride_u, 16) &&
IS_ALIGNED(src_v, 16) && IS_ALIGNED(src_stride_v, 16) &&
IS_ALIGNED(dst_u, 16) && IS_ALIGNED(dst_stride_u, 16) &&
IS_ALIGNED(dst_v, 16) && IS_ALIGNED(dst_stride_v, 16)) {
ScaleRowDown2 = ScaleRowDown2Box_SSE2;
}
#endif
// Copy Y plane
if (dst_y) {
CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
}
// SubSample U plane.
int y;
for (y = 0; y < height - 1; y += 2) {
ScaleRowDown2(src_u, src_stride_u, dst_u, halfwidth);
src_u += src_stride_u * 2;
dst_u += dst_stride_u;
}
if (height & 1) {
ScaleRowDown2(src_u, 0, dst_u, halfwidth);
}
int halfwidth = (width + 1) >> 1;
int halfheight = (height + 1) >> 1;
// SubSample V plane.
for (y = 0; y < height - 1; y += 2) {
ScaleRowDown2(src_v, src_stride_v, dst_v, halfwidth);
src_v += src_stride_v * 2;
dst_v += dst_stride_v;
}
if (height & 1) {
ScaleRowDown2(src_v, 0, dst_v, halfwidth);
}
// Resample U plane.
ScalePlane(src_u, src_stride_u, width, height,
dst_u, dst_stride_u, halfwidth, halfheight,
kFilterBilinear);
// Resample V plane.
ScalePlane(src_v, src_stride_v, width, height,
dst_v, dst_stride_v, halfwidth, halfheight,
kFilterBilinear);
return 0;
}
// TODO(fbarchard): Enable bilinear when fast enough or specialized upsampler.
// 411 chroma is 1/4 width, 1x height
// 420 chroma is 1/2 width, 1/2 height
LIBYUV_API
......@@ -254,15 +185,15 @@ int I411ToI420(const uint8* src_y, int src_stride_y,
int halfheight = (height + 1) >> 1;
int quarterwidth = (width + 3) >> 2;
// Resample U plane from 1/4 width, 1x height to 1/2 width, 1/2 height.
// Resample U plane.
ScalePlane(src_u, src_stride_u, quarterwidth, height,
dst_u, dst_stride_u, halfwidth, halfheight,
kFilterNone);
kFilterBilinear);
// Resample V plane.
ScalePlane(src_v, src_stride_v, quarterwidth, height,
dst_v, dst_stride_v, halfwidth, halfheight,
kFilterNone);
kFilterBilinear);
return 0;
}
......
source/row_posix.cc
View file @ 545a51c1
......@@ -5389,6 +5389,7 @@ void ARGBAffineRow_SSE2(const uint8* src_argb, int src_argb_stride,
// 1 pixel loop \n"
".p2align 2 \n"
BUNDLEALIGN
"10: \n"
"cvttps2dq %%xmm2,%%xmm0 \n"
"packssdw %%xmm0,%%xmm0 \n"
......
unit_test/convert_test.cc
View file @ 545a51c1
......@@ -106,7 +106,7 @@ TEST_F(libyuvTest, SRC_FMT_PLANAR##To##FMT_PLANAR##N) { \
} \
} \
} \
EXPECT_LE(max_diff, 1); \
EXPECT_LE(max_diff, 0); \
for (int i = 0; i < SUBSAMPLE(kHeight, SUBSAMP_Y); ++i) { \
for (int j = 0; j < SUBSAMPLE(kWidth, SUBSAMP_X); ++j) { \
int abs_diff = \
......@@ -119,7 +119,7 @@ TEST_F(libyuvTest, SRC_FMT_PLANAR##To##FMT_PLANAR##N) { \
} \
} \
} \
EXPECT_LE(max_diff, 1); \
EXPECT_LE(max_diff, 3); \
for (int i = 0; i < SUBSAMPLE(kHeight, SUBSAMP_Y); ++i) { \
for (int j = 0; j < SUBSAMPLE(kWidth, SUBSAMP_X); ++j) { \
int abs_diff = \
......@@ -132,7 +132,7 @@ TEST_F(libyuvTest, SRC_FMT_PLANAR##To##FMT_PLANAR##N) { \
} \
} \
} \
EXPECT_LE(max_diff, 1); \
EXPECT_LE(max_diff, 3); \
free_aligned_buffer_64(dst_y_c) \
free_aligned_buffer_64(dst_u_c) \
free_aligned_buffer_64(dst_v_c) \
......
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