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Rotate functions ported to C. This completes all rotate functionality under c89, for overall 71% complete port.

Browse Source 
BUG=303
TESTED=cl /c /TC /Iinclude source/rotate_argb.cc
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/6959004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@963 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2014-01-13 18:31:35 +00:00
parent 5aa39953cc
commit e28b2084d7
4 changed files with 41 additions and 30 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 961
Version: 962
License: BSD
License File: LICENSE

2
include/libyuv/version.h
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@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 961
#define LIBYUV_VERSION 962
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

49
source/rotate.cc
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@ -772,7 +772,8 @@ static void TransposeUVWx8_SSE2(const uint8* src, int src_stride,
static void TransposeWx8_C(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width) {
for (int i = 0; i < width; ++i) {
int i;
for (i = 0; i < width; ++i) {
dst[0] = src[0 * src_stride];
dst[1] = src[1 * src_stride];
dst[2] = src[2 * src_stride];
@ -789,8 +790,10 @@ static void TransposeWx8_C(const uint8* src, int src_stride,
static void TransposeWxH_C(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height) {
for (int i = 0; i < width; ++i) {
for (int j = 0; j < height; ++j) {
int i;
for (i = 0; i < width; ++i) {
int j;
for (j = 0; j < height; ++j) {
dst[i * dst_stride + j] = src[j * src_stride + i];
}
}
@ -800,6 +803,7 @@ LIBYUV_API
void TransposePlane(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height) {
int i = height;
void (*TransposeWx8)(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width) = TransposeWx8_C;
@ -832,7 +836,6 @@ void TransposePlane(const uint8* src, int src_stride,
#endif
// Work across the source in 8x8 tiles
int i = height;
while (i >= 8) {
TransposeWx8(src, src_stride, dst, dst_stride, width);
src += 8 * src_stride; // Go down 8 rows.
@ -871,7 +874,14 @@ LIBYUV_API
void RotatePlane180(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height) {
// Swap first and last row and mirror the content. Uses a temporary row.
align_buffer_64(row, width);
const uint8* src_bot = src + src_stride * (height - 1);
uint8* dst_bot = dst + dst_stride * (height - 1);
int half_height = (height + 1) >> 1;
int y;
void (*MirrorRow)(const uint8* src, uint8* dst, int width) = MirrorRow_C;
void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C;
#if defined(HAS_MIRRORROW_NEON)
if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 16)) {
MirrorRow = MirrorRow_NEON;
@ -903,7 +913,6 @@ void RotatePlane180(const uint8* src, int src_stride,
MirrorRow = MirrorRow_MIPS_DSPR2;
}
#endif
void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C;
#if defined(HAS_COPYROW_NEON)
if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 32)) {
CopyRow = CopyRow_NEON;
@ -932,13 +941,8 @@ void RotatePlane180(const uint8* src, int src_stride,
}
#endif
// Swap first and last row and mirror the content. Uses a temporary row.
align_buffer_64(row, width);
const uint8* src_bot = src + src_stride * (height - 1);
uint8* dst_bot = dst + dst_stride * (height - 1);
int half_height = (height + 1) >> 1;
// Odd height will harmlessly mirror the middle row twice.
for (int y = 0; y < half_height; ++y) {
for (y = 0; y < half_height; ++y) {
MirrorRow(src, row, width); // Mirror first row into a buffer
src += src_stride;
MirrorRow(src_bot, dst, width); // Mirror last row into first row
@ -954,7 +958,8 @@ static void TransposeUVWx8_C(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
int width) {
for (int i = 0; i < width; ++i) {
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];
@ -981,11 +986,14 @@ static void TransposeUVWxH_C(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
int width, int height) {
for (int i = 0; i < width * 2; i += 2)
for (int j = 0; j < height; ++j) {
int i;
for (i = 0; i < width * 2; i += 2) {
int j;
for (j = 0; j < height; ++j) {
dst_a[j + ((i >> 1) * dst_stride_a)] = src[i + (j * src_stride)];
dst_b[j + ((i >> 1) * dst_stride_b)] = src[i + (j * src_stride) + 1];
}
}
}
LIBYUV_API
@ -993,6 +1001,7 @@ void TransposeUV(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
int width, int height) {
int i = height;
void (*TransposeUVWx8)(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
@ -1015,7 +1024,6 @@ void TransposeUV(const uint8* src, int src_stride,
#endif
// Work through the source in 8x8 tiles.
int i = height;
while (i >= 8) {
TransposeUVWx8(src, src_stride,
dst_a, dst_stride_a,
@ -1069,6 +1077,7 @@ void RotateUV180(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
int width, int height) {
int i;
void (*MirrorRowUV)(const uint8* src, uint8* dst_u, uint8* dst_v, int width) =
MirrorUVRow_C;
#if defined(HAS_MIRRORUVROW_NEON)
@ -1090,7 +1099,7 @@ void RotateUV180(const uint8* src, int src_stride,
dst_a += dst_stride_a * (height - 1);
dst_b += dst_stride_b * (height - 1);
for (int i = 0; i < height; ++i) {
for (i = 0; i < height; ++i) {
MirrorRowUV(src, dst_a, dst_b, width);
src += src_stride;
dst_a -= dst_stride_a;
@ -1151,12 +1160,12 @@ int I420Rotate(const uint8* src_y, int src_stride_y,
uint8* dst_v, int dst_stride_v,
int width, int height,
enum RotationMode mode) {
int halfwidth = (width + 1) >> 1;
int halfheight = (height + 1) >> 1;
if (!src_y || !src_u || !src_v || width <= 0 || height == 0 ||
!dst_y || !dst_u || !dst_v) {
return -1;
}
int halfwidth = (width + 1) >> 1;
int halfheight = (height + 1) >> 1;
// Negative height means invert the image.
if (height < 0) {
@ -1227,12 +1236,12 @@ int NV12ToI420Rotate(const uint8* src_y, int src_stride_y,
uint8* dst_v, int dst_stride_v,
int width, int height,
enum RotationMode mode) {
int halfwidth = (width + 1) >> 1;
int halfheight = (height + 1) >> 1;
if (!src_y || !src_uv || width <= 0 || height == 0 ||
!dst_y || !dst_u || !dst_v) {
return -1;
}
int halfwidth = (width + 1) >> 1;
int halfheight = (height + 1) >> 1;
// Negative height means invert the image.
if (height < 0) {

18
source/rotate_argb.cc
View File

@ -45,6 +45,7 @@ void ScaleARGBRowDownEven_C(const uint8* src_ptr, int,
static void ARGBTranspose(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height) {
int i;
int src_pixel_step = src_stride >> 2;
void (*ScaleARGBRowDownEven)(const uint8* src_ptr, int src_stride,
int src_step, uint8* dst_ptr, int dst_width) = ScaleARGBRowDownEven_C;
@ -60,7 +61,7 @@ static void ARGBTranspose(const uint8* src, int src_stride,
}
#endif
for (int i = 0; i < width; ++i) { // column of source to row of dest.
for (i = 0; i < width; ++i) { // column of source to row of dest.
ScaleARGBRowDownEven(src, 0, src_pixel_step, dst, height);
dst += dst_stride;
src += 4;
@ -92,8 +93,15 @@ void ARGBRotate270(const uint8* src, int src_stride,
void ARGBRotate180(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height) {
// Swap first and last row and mirror the content. Uses a temporary row.
align_buffer_64(row, width * 4);
const uint8* src_bot = src + src_stride * (height - 1);
uint8* dst_bot = dst + dst_stride * (height - 1);
int half_height = (height + 1) >> 1;
int y;
void (*ARGBMirrorRow)(const uint8* src, uint8* dst, int width) =
ARGBMirrorRow_C;
void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C;
#if defined(HAS_ARGBMIRRORROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3) && IS_ALIGNED(width, 4) &&
IS_ALIGNED(src, 16) && IS_ALIGNED(src_stride, 16) &&
@ -111,7 +119,6 @@ void ARGBRotate180(const uint8* src, int src_stride,
ARGBMirrorRow = ARGBMirrorRow_NEON;
}
#endif
void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C;
#if defined(HAS_COPYROW_NEON)
if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width * 4, 32)) {
CopyRow = CopyRow_NEON;
@ -140,13 +147,8 @@ void ARGBRotate180(const uint8* src, int src_stride,
}
#endif
// Swap first and last row and mirror the content. Uses a temporary row.
align_buffer_64(row, width * 4);
const uint8* src_bot = src + src_stride * (height - 1);
uint8* dst_bot = dst + dst_stride * (height - 1);
int half_height = (height + 1) >> 1;
// Odd height will harmlessly mirror the middle row twice.
for (int y = 0; y < half_height; ++y) {
for (y = 0; y < half_height; ++y) {
ARGBMirrorRow(src, row, width); // Mirror first row into a buffer
ARGBMirrorRow(src_bot, dst, width); // Mirror last row into first row
CopyRow(row, dst_bot, width * 4); // Copy first mirrored row into last