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libyuv/source/convert_from.cc
lixia zhang 21be9122aa libyuv:loongson optimize compare/row/scale/rotate files with mmi. 
Currently, libyuv supports MIPS SIMD Arch(MSA),
but libyuv does not supports MultiMedia Instruction(MMI)(such as loongson3a platform).

In order to improve performance of libyuv on loongson3a platform,
this provides optimize 98 functions with mmi.

BUG=libyuv:804

Change-Id: I8947626009efad769b3103a867363ece25d79629
Reviewed-on: https://chromium-review.googlesource.com/1122064
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2018-07-20 22:53:04 +00:00

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/*
* Copyright 2012 The LibYuv Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "libyuv/convert_from.h"
#include "libyuv/basic_types.h"
#include "libyuv/convert.h" // For I420Copy
#include "libyuv/cpu_id.h"
#include "libyuv/planar_functions.h"
#include "libyuv/rotate.h"
#include "libyuv/row.h"
#include "libyuv/scale.h" // For ScalePlane()
#include "libyuv/video_common.h"
#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif
#define SUBSAMPLE(v, a, s) (v < 0) ? (-((-v + a) >> s)) : ((v + a) >> s)
static __inline int Abs(int v) {
return v >= 0 ? v : -v;
}
// I420 To any I4xx YUV format with mirroring.
static int I420ToI4xx(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_y,
int dst_stride_y,
uint8_t* dst_u,
int dst_stride_u,
uint8_t* dst_v,
int dst_stride_v,
int src_y_width,
int src_y_height,
int dst_uv_width,
int dst_uv_height) {
const int dst_y_width = Abs(src_y_width);
const int dst_y_height = Abs(src_y_height);
const int src_uv_width = SUBSAMPLE(src_y_width, 1, 1);
const int src_uv_height = SUBSAMPLE(src_y_height, 1, 1);
if (src_y_width == 0 || src_y_height == 0 || dst_uv_width <= 0 ||
dst_uv_height <= 0) {
return -1;
}
if (dst_y) {
ScalePlane(src_y, src_stride_y, src_y_width, src_y_height, dst_y,
dst_stride_y, dst_y_width, dst_y_height, kFilterBilinear);
}
ScalePlane(src_u, src_stride_u, src_uv_width, src_uv_height, dst_u,
dst_stride_u, dst_uv_width, dst_uv_height, kFilterBilinear);
ScalePlane(src_v, src_stride_v, src_uv_width, src_uv_height, dst_v,
dst_stride_v, dst_uv_width, dst_uv_height, kFilterBilinear);
return 0;
}
// Convert 8 bit YUV to 10 bit.
LIBYUV_API
int I420ToI010(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint16_t* dst_y,
int dst_stride_y,
uint16_t* dst_u,
int dst_stride_u,
uint16_t* dst_v,
int dst_stride_v,
int width,
int height) {
int halfwidth = (width + 1) >> 1;
int halfheight = (height + 1) >> 1;
if (!src_u || !src_v || !dst_u || !dst_v || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
halfheight = (height + 1) >> 1;
src_y = src_y + (height - 1) * src_stride_y;
src_u = src_u + (halfheight - 1) * src_stride_u;
src_v = src_v + (halfheight - 1) * src_stride_v;
src_stride_y = -src_stride_y;
src_stride_u = -src_stride_u;
src_stride_v = -src_stride_v;
}
// Convert Y plane.
Convert8To16Plane(src_y, src_stride_y, dst_y, dst_stride_y, 1024, width,
height);
// Convert UV planes.
Convert8To16Plane(src_u, src_stride_u, dst_u, dst_stride_u, 1024, halfwidth,
halfheight);
Convert8To16Plane(src_v, src_stride_v, dst_v, dst_stride_v, 1024, halfwidth,
halfheight);
return 0;
}
// 420 chroma is 1/2 width, 1/2 height
// 422 chroma is 1/2 width, 1x height
LIBYUV_API
int I420ToI422(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_y,
int dst_stride_y,
uint8_t* dst_u,
int dst_stride_u,
uint8_t* dst_v,
int dst_stride_v,
int width,
int height) {
const int dst_uv_width = (Abs(width) + 1) >> 1;
const int dst_uv_height = Abs(height);
return I420ToI4xx(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_y, dst_stride_y, dst_u, dst_stride_u,
dst_v, dst_stride_v, width, height, dst_uv_width,
dst_uv_height);
}
// 420 chroma is 1/2 width, 1/2 height
// 444 chroma is 1x width, 1x height
LIBYUV_API
int I420ToI444(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_y,
int dst_stride_y,
uint8_t* dst_u,
int dst_stride_u,
uint8_t* dst_v,
int dst_stride_v,
int width,
int height) {
const int dst_uv_width = Abs(width);
const int dst_uv_height = Abs(height);
return I420ToI4xx(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_y, dst_stride_y, dst_u, dst_stride_u,
dst_v, dst_stride_v, width, height, dst_uv_width,
dst_uv_height);
}
// Copy to I400. Source can be I420,422,444,400,NV12,NV21
LIBYUV_API
int I400Copy(const uint8_t* src_y,
int src_stride_y,
uint8_t* dst_y,
int dst_stride_y,
int width,
int height) {
if (!src_y || !dst_y || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
src_y = src_y + (height - 1) * src_stride_y;
src_stride_y = -src_stride_y;
}
CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
return 0;
}
LIBYUV_API
int I422ToYUY2(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_yuy2,
int dst_stride_yuy2,
int width,
int height) {
int y;
void (*I422ToYUY2Row)(const uint8_t* src_y, const uint8_t* src_u,
const uint8_t* src_v, uint8_t* dst_yuy2, int width) =
I422ToYUY2Row_C;
if (!src_y || !src_u || !src_v || !dst_yuy2 || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_yuy2 = dst_yuy2 + (height - 1) * dst_stride_yuy2;
dst_stride_yuy2 = -dst_stride_yuy2;
}
// Coalesce rows.
if (src_stride_y == width && src_stride_u * 2 == width &&
src_stride_v * 2 == width && dst_stride_yuy2 == width * 2) {
width *= height;
height = 1;
src_stride_y = src_stride_u = src_stride_v = dst_stride_yuy2 = 0;
}
#if defined(HAS_I422TOYUY2ROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2)) {
I422ToYUY2Row = I422ToYUY2Row_Any_SSE2;
if (IS_ALIGNED(width, 16)) {
I422ToYUY2Row = I422ToYUY2Row_SSE2;
}
}
#endif
#if defined(HAS_I422TOYUY2ROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToYUY2Row = I422ToYUY2Row_Any_AVX2;
if (IS_ALIGNED(width, 32)) {
I422ToYUY2Row = I422ToYUY2Row_AVX2;
}
}
#endif
#if defined(HAS_I422TOYUY2ROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToYUY2Row = I422ToYUY2Row_Any_NEON;
if (IS_ALIGNED(width, 16)) {
I422ToYUY2Row = I422ToYUY2Row_NEON;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToYUY2Row(src_y, src_u, src_v, dst_yuy2, width);
src_y += src_stride_y;
src_u += src_stride_u;
src_v += src_stride_v;
dst_yuy2 += dst_stride_yuy2;
}
return 0;
}
LIBYUV_API
int I420ToYUY2(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_yuy2,
int dst_stride_yuy2,
int width,
int height) {
int y;
void (*I422ToYUY2Row)(const uint8_t* src_y, const uint8_t* src_u,
const uint8_t* src_v, uint8_t* dst_yuy2, int width) =
I422ToYUY2Row_C;
if (!src_y || !src_u || !src_v || !dst_yuy2 || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_yuy2 = dst_yuy2 + (height - 1) * dst_stride_yuy2;
dst_stride_yuy2 = -dst_stride_yuy2;
}
#if defined(HAS_I422TOYUY2ROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2)) {
I422ToYUY2Row = I422ToYUY2Row_Any_SSE2;
if (IS_ALIGNED(width, 16)) {
I422ToYUY2Row = I422ToYUY2Row_SSE2;
}
}
#endif
#if defined(HAS_I422TOYUY2ROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToYUY2Row = I422ToYUY2Row_Any_AVX2;
if (IS_ALIGNED(width, 32)) {
I422ToYUY2Row = I422ToYUY2Row_AVX2;
}
}
#endif
#if defined(HAS_I422TOYUY2ROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToYUY2Row = I422ToYUY2Row_Any_NEON;
if (IS_ALIGNED(width, 16)) {
I422ToYUY2Row = I422ToYUY2Row_NEON;
}
}
#endif
#if defined(HAS_I422TOYUY2ROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToYUY2Row = I422ToYUY2Row_Any_MSA;
if (IS_ALIGNED(width, 32)) {
I422ToYUY2Row = I422ToYUY2Row_MSA;
}
}
#endif
#if defined(HAS_I422TOYUY2ROW_MMI)
if (TestCpuFlag(kCpuHasMMI)) {
I422ToYUY2Row = I422ToYUY2Row_Any_MMI;
if (IS_ALIGNED(width, 8)) {
I422ToYUY2Row = I422ToYUY2Row_MMI;
}
}
#endif
for (y = 0; y < height - 1; y += 2) {
I422ToYUY2Row(src_y, src_u, src_v, dst_yuy2, width);
I422ToYUY2Row(src_y + src_stride_y, src_u, src_v,
dst_yuy2 + dst_stride_yuy2, width);
src_y += src_stride_y * 2;
src_u += src_stride_u;
src_v += src_stride_v;
dst_yuy2 += dst_stride_yuy2 * 2;
}
if (height & 1) {
I422ToYUY2Row(src_y, src_u, src_v, dst_yuy2, width);
}
return 0;
}
LIBYUV_API
int I422ToUYVY(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_uyvy,
int dst_stride_uyvy,
int width,
int height) {
int y;
void (*I422ToUYVYRow)(const uint8_t* src_y, const uint8_t* src_u,
const uint8_t* src_v, uint8_t* dst_uyvy, int width) =
I422ToUYVYRow_C;
if (!src_y || !src_u || !src_v || !dst_uyvy || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_uyvy = dst_uyvy + (height - 1) * dst_stride_uyvy;
dst_stride_uyvy = -dst_stride_uyvy;
}
// Coalesce rows.
if (src_stride_y == width && src_stride_u * 2 == width &&
src_stride_v * 2 == width && dst_stride_uyvy == width * 2) {
width *= height;
height = 1;
src_stride_y = src_stride_u = src_stride_v = dst_stride_uyvy = 0;
}
#if defined(HAS_I422TOUYVYROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2)) {
I422ToUYVYRow = I422ToUYVYRow_Any_SSE2;
if (IS_ALIGNED(width, 16)) {
I422ToUYVYRow = I422ToUYVYRow_SSE2;
}
}
#endif
#if defined(HAS_I422TOUYVYROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToUYVYRow = I422ToUYVYRow_Any_AVX2;
if (IS_ALIGNED(width, 32)) {
I422ToUYVYRow = I422ToUYVYRow_AVX2;
}
}
#endif
#if defined(HAS_I422TOUYVYROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToUYVYRow = I422ToUYVYRow_Any_NEON;
if (IS_ALIGNED(width, 16)) {
I422ToUYVYRow = I422ToUYVYRow_NEON;
}
}
#endif
#if defined(HAS_I422TOUYVYROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToUYVYRow = I422ToUYVYRow_Any_MSA;
if (IS_ALIGNED(width, 32)) {
I422ToUYVYRow = I422ToUYVYRow_MSA;
}
}
#endif
#if defined(HAS_I422TOUYVYROW_MMI)
if (TestCpuFlag(kCpuHasMMI)) {
I422ToUYVYRow = I422ToUYVYRow_Any_MMI;
if (IS_ALIGNED(width, 8)) {
I422ToUYVYRow = I422ToUYVYRow_MMI;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToUYVYRow(src_y, src_u, src_v, dst_uyvy, width);
src_y += src_stride_y;
src_u += src_stride_u;
src_v += src_stride_v;
dst_uyvy += dst_stride_uyvy;
}
return 0;
}
LIBYUV_API
int I420ToUYVY(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_uyvy,
int dst_stride_uyvy,
int width,
int height) {
int y;
void (*I422ToUYVYRow)(const uint8_t* src_y, const uint8_t* src_u,
const uint8_t* src_v, uint8_t* dst_uyvy, int width) =
I422ToUYVYRow_C;
if (!src_y || !src_u || !src_v || !dst_uyvy || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_uyvy = dst_uyvy + (height - 1) * dst_stride_uyvy;
dst_stride_uyvy = -dst_stride_uyvy;
}
#if defined(HAS_I422TOUYVYROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2)) {
I422ToUYVYRow = I422ToUYVYRow_Any_SSE2;
if (IS_ALIGNED(width, 16)) {
I422ToUYVYRow = I422ToUYVYRow_SSE2;
}
}
#endif
#if defined(HAS_I422TOUYVYROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToUYVYRow = I422ToUYVYRow_Any_AVX2;
if (IS_ALIGNED(width, 32)) {
I422ToUYVYRow = I422ToUYVYRow_AVX2;
}
}
#endif
#if defined(HAS_I422TOUYVYROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToUYVYRow = I422ToUYVYRow_Any_NEON;
if (IS_ALIGNED(width, 16)) {
I422ToUYVYRow = I422ToUYVYRow_NEON;
}
}
#endif
#if defined(HAS_I422TOUYVYROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToUYVYRow = I422ToUYVYRow_Any_MSA;
if (IS_ALIGNED(width, 32)) {
I422ToUYVYRow = I422ToUYVYRow_MSA;
}
}
#endif
#if defined(HAS_I422TOUYVYROW_MMI)
if (TestCpuFlag(kCpuHasMMI)) {
I422ToUYVYRow = I422ToUYVYRow_Any_MMI;
if (IS_ALIGNED(width, 8)) {
I422ToUYVYRow = I422ToUYVYRow_MMI;
}
}
#endif
for (y = 0; y < height - 1; y += 2) {
I422ToUYVYRow(src_y, src_u, src_v, dst_uyvy, width);
I422ToUYVYRow(src_y + src_stride_y, src_u, src_v,
dst_uyvy + dst_stride_uyvy, width);
src_y += src_stride_y * 2;
src_u += src_stride_u;
src_v += src_stride_v;
dst_uyvy += dst_stride_uyvy * 2;
}
if (height & 1) {
I422ToUYVYRow(src_y, src_u, src_v, dst_uyvy, width);
}
return 0;
}
// TODO(fbarchard): test negative height for invert.
LIBYUV_API
int I420ToNV12(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_y,
int dst_stride_y,
uint8_t* dst_uv,
int dst_stride_uv,
int width,
int height) {
if (!src_y || !src_u || !src_v || !dst_y || !dst_uv || width <= 0 ||
height == 0) {
return -1;
}
int halfwidth = (width + 1) / 2;
int halfheight = height > 0 ? (height + 1) / 2 : (height - 1) / 2;
if (dst_y) {
CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height);
}
MergeUVPlane(src_u, src_stride_u, src_v, src_stride_v, dst_uv, dst_stride_uv,
halfwidth, halfheight);
return 0;
}
LIBYUV_API
int I420ToNV21(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_y,
int dst_stride_y,
uint8_t* dst_vu,
int dst_stride_vu,
int width,
int height) {
return I420ToNV12(src_y, src_stride_y, src_v, src_stride_v, src_u,
src_stride_u, dst_y, dst_stride_y, dst_vu, dst_stride_vu,
width, height);
}
// Convert I422 to RGBA with matrix
static int I420ToRGBAMatrix(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgba,
int dst_stride_rgba,
const struct YuvConstants* yuvconstants,
int width,
int height) {
int y;
void (*I422ToRGBARow)(const uint8_t* y_buf, const uint8_t* u_buf,
const uint8_t* v_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants, int width) =
I422ToRGBARow_C;
if (!src_y || !src_u || !src_v || !dst_rgba || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_rgba = dst_rgba + (height - 1) * dst_stride_rgba;
dst_stride_rgba = -dst_stride_rgba;
}
#if defined(HAS_I422TORGBAROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I422ToRGBARow = I422ToRGBARow_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I422ToRGBARow = I422ToRGBARow_SSSE3;
}
}
#endif
#if defined(HAS_I422TORGBAROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToRGBARow = I422ToRGBARow_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I422ToRGBARow = I422ToRGBARow_AVX2;
}
}
#endif
#if defined(HAS_I422TORGBAROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToRGBARow = I422ToRGBARow_Any_NEON;
if (IS_ALIGNED(width, 8)) {
I422ToRGBARow = I422ToRGBARow_NEON;
}
}
#endif
#if defined(HAS_I422TORGBAROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToRGBARow = I422ToRGBARow_Any_MSA;
if (IS_ALIGNED(width, 8)) {
I422ToRGBARow = I422ToRGBARow_MSA;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToRGBARow(src_y, src_u, src_v, dst_rgba, yuvconstants, width);
dst_rgba += dst_stride_rgba;
src_y += src_stride_y;
if (y & 1) {
src_u += src_stride_u;
src_v += src_stride_v;
}
}
return 0;
}
// Convert I420 to RGBA.
LIBYUV_API
int I420ToRGBA(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgba,
int dst_stride_rgba,
int width,
int height) {
return I420ToRGBAMatrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_rgba, dst_stride_rgba,
&kYuvI601Constants, width, height);
}
// Convert I420 to BGRA.
LIBYUV_API
int I420ToBGRA(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_bgra,
int dst_stride_bgra,
int width,
int height) {
return I420ToRGBAMatrix(src_y, src_stride_y, src_v,
src_stride_v, // Swap U and V
src_u, src_stride_u, dst_bgra, dst_stride_bgra,
&kYvuI601Constants, // Use Yvu matrix
width, height);
}
// Convert I420 to RGB24 with matrix
static int I420ToRGB24Matrix(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgb24,
int dst_stride_rgb24,
const struct YuvConstants* yuvconstants,
int width,
int height) {
int y;
void (*I422ToRGB24Row)(const uint8_t* y_buf, const uint8_t* u_buf,
const uint8_t* v_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants, int width) =
I422ToRGB24Row_C;
if (!src_y || !src_u || !src_v || !dst_rgb24 || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_rgb24 = dst_rgb24 + (height - 1) * dst_stride_rgb24;
dst_stride_rgb24 = -dst_stride_rgb24;
}
#if defined(HAS_I422TORGB24ROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I422ToRGB24Row = I422ToRGB24Row_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I422ToRGB24Row = I422ToRGB24Row_SSSE3;
}
}
#endif
#if defined(HAS_I422TORGB24ROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToRGB24Row = I422ToRGB24Row_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I422ToRGB24Row = I422ToRGB24Row_AVX2;
}
}
#endif
#if defined(HAS_I422TORGB24ROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToRGB24Row = I422ToRGB24Row_Any_NEON;
if (IS_ALIGNED(width, 8)) {
I422ToRGB24Row = I422ToRGB24Row_NEON;
}
}
#endif
#if defined(HAS_I422TORGB24ROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToRGB24Row = I422ToRGB24Row_Any_MSA;
if (IS_ALIGNED(width, 16)) {
I422ToRGB24Row = I422ToRGB24Row_MSA;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToRGB24Row(src_y, src_u, src_v, dst_rgb24, yuvconstants, width);
dst_rgb24 += dst_stride_rgb24;
src_y += src_stride_y;
if (y & 1) {
src_u += src_stride_u;
src_v += src_stride_v;
}
}
return 0;
}
// Convert I420 to RGB24.
LIBYUV_API
int I420ToRGB24(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgb24,
int dst_stride_rgb24,
int width,
int height) {
return I420ToRGB24Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_rgb24, dst_stride_rgb24,
&kYuvI601Constants, width, height);
}
// Convert I420 to RAW.
LIBYUV_API
int I420ToRAW(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_raw,
int dst_stride_raw,
int width,
int height) {
return I420ToRGB24Matrix(src_y, src_stride_y, src_v,
src_stride_v, // Swap U and V
src_u, src_stride_u, dst_raw, dst_stride_raw,
&kYvuI601Constants, // Use Yvu matrix
width, height);
}
// Convert H420 to RGB24.
LIBYUV_API
int H420ToRGB24(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgb24,
int dst_stride_rgb24,
int width,
int height) {
return I420ToRGB24Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_rgb24, dst_stride_rgb24,
&kYuvH709Constants, width, height);
}
// Convert H420 to RAW.
LIBYUV_API
int H420ToRAW(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_raw,
int dst_stride_raw,
int width,
int height) {
return I420ToRGB24Matrix(src_y, src_stride_y, src_v,
src_stride_v, // Swap U and V
src_u, src_stride_u, dst_raw, dst_stride_raw,
&kYvuH709Constants, // Use Yvu matrix
width, height);
}
// Convert I420 to ARGB1555.
LIBYUV_API
int I420ToARGB1555(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_argb1555,
int dst_stride_argb1555,
int width,
int height) {
int y;
void (*I422ToARGB1555Row)(const uint8_t* y_buf, const uint8_t* u_buf,
const uint8_t* v_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants,
int width) = I422ToARGB1555Row_C;
if (!src_y || !src_u || !src_v || !dst_argb1555 || width <= 0 ||
height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_argb1555 = dst_argb1555 + (height - 1) * dst_stride_argb1555;
dst_stride_argb1555 = -dst_stride_argb1555;
}
#if defined(HAS_I422TOARGB1555ROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I422ToARGB1555Row = I422ToARGB1555Row_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I422ToARGB1555Row = I422ToARGB1555Row_SSSE3;
}
}
#endif
#if defined(HAS_I422TOARGB1555ROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToARGB1555Row = I422ToARGB1555Row_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I422ToARGB1555Row = I422ToARGB1555Row_AVX2;
}
}
#endif
#if defined(HAS_I422TOARGB1555ROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToARGB1555Row = I422ToARGB1555Row_Any_NEON;
if (IS_ALIGNED(width, 8)) {
I422ToARGB1555Row = I422ToARGB1555Row_NEON;
}
}
#endif
#if defined(HAS_I422TOARGB1555ROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToARGB1555Row = I422ToARGB1555Row_Any_MSA;
if (IS_ALIGNED(width, 8)) {
I422ToARGB1555Row = I422ToARGB1555Row_MSA;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToARGB1555Row(src_y, src_u, src_v, dst_argb1555, &kYuvI601Constants,
width);
dst_argb1555 += dst_stride_argb1555;
src_y += src_stride_y;
if (y & 1) {
src_u += src_stride_u;
src_v += src_stride_v;
}
}
return 0;
}
// Convert I420 to ARGB4444.
LIBYUV_API
int I420ToARGB4444(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_argb4444,
int dst_stride_argb4444,
int width,
int height) {
int y;
void (*I422ToARGB4444Row)(const uint8_t* y_buf, const uint8_t* u_buf,
const uint8_t* v_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants,
int width) = I422ToARGB4444Row_C;
if (!src_y || !src_u || !src_v || !dst_argb4444 || width <= 0 ||
height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_argb4444 = dst_argb4444 + (height - 1) * dst_stride_argb4444;
dst_stride_argb4444 = -dst_stride_argb4444;
}
#if defined(HAS_I422TOARGB4444ROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I422ToARGB4444Row = I422ToARGB4444Row_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I422ToARGB4444Row = I422ToARGB4444Row_SSSE3;
}
}
#endif
#if defined(HAS_I422TOARGB4444ROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToARGB4444Row = I422ToARGB4444Row_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I422ToARGB4444Row = I422ToARGB4444Row_AVX2;
}
}
#endif
#if defined(HAS_I422TOARGB4444ROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToARGB4444Row = I422ToARGB4444Row_Any_NEON;
if (IS_ALIGNED(width, 8)) {
I422ToARGB4444Row = I422ToARGB4444Row_NEON;
}
}
#endif
#if defined(HAS_I422TOARGB4444ROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToARGB4444Row = I422ToARGB4444Row_Any_MSA;
if (IS_ALIGNED(width, 8)) {
I422ToARGB4444Row = I422ToARGB4444Row_MSA;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToARGB4444Row(src_y, src_u, src_v, dst_argb4444, &kYuvI601Constants,
width);
dst_argb4444 += dst_stride_argb4444;
src_y += src_stride_y;
if (y & 1) {
src_u += src_stride_u;
src_v += src_stride_v;
}
}
return 0;
}
// Convert I420 to RGB565.
LIBYUV_API
int I420ToRGB565(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgb565,
int dst_stride_rgb565,
int width,
int height) {
int y;
void (*I422ToRGB565Row)(const uint8_t* y_buf, const uint8_t* u_buf,
const uint8_t* v_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants, int width) =
I422ToRGB565Row_C;
if (!src_y || !src_u || !src_v || !dst_rgb565 || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_rgb565 = dst_rgb565 + (height - 1) * dst_stride_rgb565;
dst_stride_rgb565 = -dst_stride_rgb565;
}
#if defined(HAS_I422TORGB565ROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I422ToRGB565Row = I422ToRGB565Row_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I422ToRGB565Row = I422ToRGB565Row_SSSE3;
}
}
#endif
#if defined(HAS_I422TORGB565ROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToRGB565Row = I422ToRGB565Row_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I422ToRGB565Row = I422ToRGB565Row_AVX2;
}
}
#endif
#if defined(HAS_I422TORGB565ROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToRGB565Row = I422ToRGB565Row_Any_NEON;
if (IS_ALIGNED(width, 8)) {
I422ToRGB565Row = I422ToRGB565Row_NEON;
}
}
#endif
#if defined(HAS_I422TORGB565ROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToRGB565Row = I422ToRGB565Row_Any_MSA;
if (IS_ALIGNED(width, 8)) {
I422ToRGB565Row = I422ToRGB565Row_MSA;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToRGB565Row(src_y, src_u, src_v, dst_rgb565, &kYuvI601Constants, width);
dst_rgb565 += dst_stride_rgb565;
src_y += src_stride_y;
if (y & 1) {
src_u += src_stride_u;
src_v += src_stride_v;
}
}
return 0;
}
// Convert I422 to RGB565.
LIBYUV_API
int I422ToRGB565(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgb565,
int dst_stride_rgb565,
int width,
int height) {
int y;
void (*I422ToRGB565Row)(const uint8_t* y_buf, const uint8_t* u_buf,
const uint8_t* v_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants, int width) =
I422ToRGB565Row_C;
if (!src_y || !src_u || !src_v || !dst_rgb565 || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_rgb565 = dst_rgb565 + (height - 1) * dst_stride_rgb565;
dst_stride_rgb565 = -dst_stride_rgb565;
}
#if defined(HAS_I422TORGB565ROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I422ToRGB565Row = I422ToRGB565Row_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I422ToRGB565Row = I422ToRGB565Row_SSSE3;
}
}
#endif
#if defined(HAS_I422TORGB565ROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToRGB565Row = I422ToRGB565Row_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I422ToRGB565Row = I422ToRGB565Row_AVX2;
}
}
#endif
#if defined(HAS_I422TORGB565ROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToRGB565Row = I422ToRGB565Row_Any_NEON;
if (IS_ALIGNED(width, 8)) {
I422ToRGB565Row = I422ToRGB565Row_NEON;
}
}
#endif
#if defined(HAS_I422TORGB565ROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToRGB565Row = I422ToRGB565Row_Any_MSA;
if (IS_ALIGNED(width, 8)) {
I422ToRGB565Row = I422ToRGB565Row_MSA;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToRGB565Row(src_y, src_u, src_v, dst_rgb565, &kYuvI601Constants, width);
dst_rgb565 += dst_stride_rgb565;
src_y += src_stride_y;
src_u += src_stride_u;
src_v += src_stride_v;
}
return 0;
}
// Ordered 8x8 dither for 888 to 565. Values from 0 to 7.
static const uint8_t kDither565_4x4[16] = {
0, 4, 1, 5, 6, 2, 7, 3, 1, 5, 0, 4, 7, 3, 6, 2,
};
// Convert I420 to RGB565 with dithering.
LIBYUV_API
int I420ToRGB565Dither(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgb565,
int dst_stride_rgb565,
const uint8_t* dither4x4,
int width,
int height) {
int y;
void (*I422ToARGBRow)(const uint8_t* y_buf, const uint8_t* u_buf,
const uint8_t* v_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants, int width) =
I422ToARGBRow_C;
void (*ARGBToRGB565DitherRow)(const uint8_t* src_argb, uint8_t* dst_rgb,
const uint32_t dither4, int width) =
ARGBToRGB565DitherRow_C;
if (!src_y || !src_u || !src_v || !dst_rgb565 || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_rgb565 = dst_rgb565 + (height - 1) * dst_stride_rgb565;
dst_stride_rgb565 = -dst_stride_rgb565;
}
if (!dither4x4) {
dither4x4 = kDither565_4x4;
}
#if defined(HAS_I422TOARGBROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I422ToARGBRow = I422ToARGBRow_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I422ToARGBRow = I422ToARGBRow_SSSE3;
}
}
#endif
#if defined(HAS_I422TOARGBROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToARGBRow = I422ToARGBRow_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I422ToARGBRow = I422ToARGBRow_AVX2;
}
}
#endif
#if defined(HAS_I422TOARGBROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
I422ToARGBRow = I422ToARGBRow_Any_NEON;
if (IS_ALIGNED(width, 8)) {
I422ToARGBRow = I422ToARGBRow_NEON;
}
}
#endif
#if defined(HAS_I422TOARGBROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
I422ToARGBRow = I422ToARGBRow_Any_MSA;
if (IS_ALIGNED(width, 8)) {
I422ToARGBRow = I422ToARGBRow_MSA;
}
}
#endif
#if defined(HAS_ARGBTORGB565DITHERROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_SSE2;
if (IS_ALIGNED(width, 4)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_SSE2;
}
}
#endif
#if defined(HAS_ARGBTORGB565DITHERROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_AVX2;
if (IS_ALIGNED(width, 8)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_AVX2;
}
}
#endif
#if defined(HAS_ARGBTORGB565DITHERROW_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_NEON;
if (IS_ALIGNED(width, 8)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_NEON;
}
}
#endif
#if defined(HAS_ARGBTORGB565DITHERROW_MSA)
if (TestCpuFlag(kCpuHasMSA)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_Any_MSA;
if (IS_ALIGNED(width, 8)) {
ARGBToRGB565DitherRow = ARGBToRGB565DitherRow_MSA;
}
}
#endif
{
// Allocate a row of argb.
align_buffer_64(row_argb, width * 4);
for (y = 0; y < height; ++y) {
I422ToARGBRow(src_y, src_u, src_v, row_argb, &kYuvI601Constants, width);
ARGBToRGB565DitherRow(row_argb, dst_rgb565,
*(const uint32_t*)(dither4x4 + ((y & 3) << 2)),
width);
dst_rgb565 += dst_stride_rgb565;
src_y += src_stride_y;
if (y & 1) {
src_u += src_stride_u;
src_v += src_stride_v;
}
}
free_aligned_buffer_64(row_argb);
}
return 0;
}
// Convert I420 to AR30 with matrix
static int I420ToAR30Matrix(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_ar30,
int dst_stride_ar30,
const struct YuvConstants* yuvconstants,
int width,
int height) {
int y;
void (*I422ToAR30Row)(const uint8_t* y_buf, const uint8_t* u_buf,
const uint8_t* v_buf, uint8_t* rgb_buf,
const struct YuvConstants* yuvconstants, int width) =
I422ToAR30Row_C;
if (!src_y || !src_u || !src_v || !dst_ar30 || width <= 0 || height == 0) {
return -1;
}
// Negative height means invert the image.
if (height < 0) {
height = -height;
dst_ar30 = dst_ar30 + (height - 1) * dst_stride_ar30;
dst_stride_ar30 = -dst_stride_ar30;
}
#if defined(HAS_I422TOAR30ROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3)) {
I422ToAR30Row = I422ToAR30Row_Any_SSSE3;
if (IS_ALIGNED(width, 8)) {
I422ToAR30Row = I422ToAR30Row_SSSE3;
}
}
#endif
#if defined(HAS_I422TOAR30ROW_AVX2)
if (TestCpuFlag(kCpuHasAVX2)) {
I422ToAR30Row = I422ToAR30Row_Any_AVX2;
if (IS_ALIGNED(width, 16)) {
I422ToAR30Row = I422ToAR30Row_AVX2;
}
}
#endif
for (y = 0; y < height; ++y) {
I422ToAR30Row(src_y, src_u, src_v, dst_ar30, yuvconstants, width);
dst_ar30 += dst_stride_ar30;
src_y += src_stride_y;
if (y & 1) {
src_u += src_stride_u;
src_v += src_stride_v;
}
}
return 0;
}
// Convert I420 to AR30.
LIBYUV_API
int I420ToAR30(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_ar30,
int dst_stride_ar30,
int width,
int height) {
return I420ToAR30Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_ar30, dst_stride_ar30,
&kYuvI601Constants, width, height);
}
// Convert H420 to AR30.
LIBYUV_API
int H420ToAR30(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_ar30,
int dst_stride_ar30,
int width,
int height) {
return I420ToAR30Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_ar30, dst_stride_ar30,
&kYvuH709Constants, width, height);
}
// Convert I420 to specified format
LIBYUV_API
int ConvertFromI420(const uint8_t* y,
int y_stride,
const uint8_t* u,
int u_stride,
const uint8_t* v,
int v_stride,
uint8_t* dst_sample,
int dst_sample_stride,
int width,
int height,
uint32_t fourcc) {
uint32_t format = CanonicalFourCC(fourcc);
int r = 0;
if (!y || !u || !v || !dst_sample || width <= 0 || height == 0) {
return -1;
}
switch (format) {
// Single plane formats
case FOURCC_YUY2:
r = I420ToYUY2(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 2, width,
height);
break;
case FOURCC_UYVY:
r = I420ToUYVY(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 2, width,
height);
break;
case FOURCC_RGBP:
r = I420ToRGB565(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 2, width,
height);
break;
case FOURCC_RGBO:
r = I420ToARGB1555(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 2,
width, height);
break;
case FOURCC_R444:
r = I420ToARGB4444(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 2,
width, height);
break;
case FOURCC_24BG:
r = I420ToRGB24(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 3, width,
height);
break;
case FOURCC_RAW:
r = I420ToRAW(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 3, width,
height);
break;
case FOURCC_ARGB:
r = I420ToARGB(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 4, width,
height);
break;
case FOURCC_BGRA:
r = I420ToBGRA(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 4, width,
height);
break;
case FOURCC_ABGR:
r = I420ToABGR(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 4, width,
height);
break;
case FOURCC_RGBA:
r = I420ToRGBA(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 4, width,
height);
break;
case FOURCC_AR30:
r = I420ToAR30(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width * 4, width,
height);
break;
case FOURCC_I400:
r = I400Copy(y, y_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width, width,
height);
break;
case FOURCC_NV12: {
uint8_t* dst_uv = dst_sample + width * height;
r = I420ToNV12(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width, dst_uv,
dst_sample_stride ? dst_sample_stride : width, width,
height);
break;
}
case FOURCC_NV21: {
uint8_t* dst_vu = dst_sample + width * height;
r = I420ToNV21(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride ? dst_sample_stride : width, dst_vu,
dst_sample_stride ? dst_sample_stride : width, width,
height);
break;
}
// TODO(fbarchard): Add M420.
// Triplanar formats
case FOURCC_I420:
case FOURCC_YV12: {
dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
int halfstride = (dst_sample_stride + 1) / 2;
int halfheight = (height + 1) / 2;
uint8_t* dst_u;
uint8_t* dst_v;
if (format == FOURCC_YV12) {
dst_v = dst_sample + dst_sample_stride * height;
dst_u = dst_v + halfstride * halfheight;
} else {
dst_u = dst_sample + dst_sample_stride * height;
dst_v = dst_u + halfstride * halfheight;
}
r = I420Copy(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride, dst_u, halfstride, dst_v, halfstride,
width, height);
break;
}
case FOURCC_I422:
case FOURCC_YV16: {
dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
int halfstride = (dst_sample_stride + 1) / 2;
uint8_t* dst_u;
uint8_t* dst_v;
if (format == FOURCC_YV16) {
dst_v = dst_sample + dst_sample_stride * height;
dst_u = dst_v + halfstride * height;
} else {
dst_u = dst_sample + dst_sample_stride * height;
dst_v = dst_u + halfstride * height;
}
r = I420ToI422(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride, dst_u, halfstride, dst_v, halfstride,
width, height);
break;
}
case FOURCC_I444:
case FOURCC_YV24: {
dst_sample_stride = dst_sample_stride ? dst_sample_stride : width;
uint8_t* dst_u;
uint8_t* dst_v;
if (format == FOURCC_YV24) {
dst_v = dst_sample + dst_sample_stride * height;
dst_u = dst_v + dst_sample_stride * height;
} else {
dst_u = dst_sample + dst_sample_stride * height;
dst_v = dst_u + dst_sample_stride * height;
}
r = I420ToI444(y, y_stride, u, u_stride, v, v_stride, dst_sample,
dst_sample_stride, dst_u, dst_sample_stride, dst_v,
dst_sample_stride, width, height);
break;
}
// Formats not supported - MJPG, biplanar, some rgb formats.
default:
return -1; // unknown fourcc - return failure code.
}
return r;
}
#ifdef __cplusplus
} // extern "C"
} // namespace libyuv
#endif
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