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Diffstat (limited to 'media/libaom/src/third_party/libyuv/source/convert.cc')
| -rw-r--r-- | media/libaom/src/third_party/libyuv/source/convert.cc | 1389 |
1 files changed, 1389 insertions, 0 deletions
diff --git a/media/libaom/src/third_party/libyuv/source/convert.cc b/media/libaom/src/third_party/libyuv/source/convert.cc new file mode 100644 index 000000000..3ad6bd7a4 --- /dev/null +++ b/media/libaom/src/third_party/libyuv/source/convert.cc @@ -0,0 +1,1389 @@ +/* + * Copyright 2011 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.h" + +#include "libyuv/basic_types.h" +#include "libyuv/cpu_id.h" +#include "libyuv/planar_functions.h" +#include "libyuv/rotate.h" +#include "libyuv/scale.h" // For ScalePlane() +#include "libyuv/row.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; +} + +// Any I4xx To I420 format with mirroring. +static int I4xxToI420(const uint8* src_y, int src_stride_y, + const uint8* src_u, int src_stride_u, + const uint8* src_v, int src_stride_v, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int src_y_width, int src_y_height, + int src_uv_width, int src_uv_height) { + const int dst_y_width = Abs(src_y_width); + const int dst_y_height = Abs(src_y_height); + const int dst_uv_width = SUBSAMPLE(dst_y_width, 1, 1); + const int dst_uv_height = SUBSAMPLE(dst_y_height, 1, 1); + if (src_y_width == 0 || src_y_height == 0 || + src_uv_width == 0 || src_uv_height == 0) { + return -1; + } + 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; +} + +// Copy I420 with optional flipping +// TODO(fbarchard): Use Scale plane which supports mirroring, but ensure +// is does row coalescing. +LIBYUV_API +int I420Copy(const uint8* src_y, int src_stride_y, + const uint8* src_u, int src_stride_u, + const uint8* src_v, int src_stride_v, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int halfwidth = (width + 1) >> 1; + int halfheight = (height + 1) >> 1; + if (!src_y || !src_u || !src_v || + !dst_y || !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; + } + + if (dst_y) { + CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); + } + // Copy UV planes. + CopyPlane(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, halfheight); + CopyPlane(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, halfheight); + 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, + const uint8* src_v, int src_stride_v, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + const int src_uv_width = SUBSAMPLE(width, 1, 1); + return I4xxToI420(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, + src_uv_width, height); +} + +// 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, + const uint8* src_v, int src_stride_v, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + return I4xxToI420(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, + width, height); +} + +// 411 chroma is 1/4 width, 1x height +// 420 chroma is 1/2 width, 1/2 height +LIBYUV_API +int I411ToI420(const uint8* src_y, int src_stride_y, + const uint8* src_u, int src_stride_u, + const uint8* src_v, int src_stride_v, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + const int src_uv_width = SUBSAMPLE(width, 3, 2); + return I4xxToI420(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, + src_uv_width, height); +} + +// I400 is greyscale typically used in MJPG +LIBYUV_API +int I400ToI420(const uint8* src_y, int src_stride_y, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int halfwidth = (width + 1) >> 1; + int halfheight = (height + 1) >> 1; + if (!src_y || !dst_y || !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_stride_y = -src_stride_y; + } + CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); + SetPlane(dst_u, dst_stride_u, halfwidth, halfheight, 128); + SetPlane(dst_v, dst_stride_v, halfwidth, halfheight, 128); + return 0; +} + +static void CopyPlane2(const uint8* src, int src_stride_0, int src_stride_1, + uint8* dst, int dst_stride, + int width, int height) { + int y; + void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C; +#if defined(HAS_COPYROW_SSE2) + if (TestCpuFlag(kCpuHasSSE2)) { + CopyRow = IS_ALIGNED(width, 32) ? CopyRow_SSE2 : CopyRow_Any_SSE2; + } +#endif +#if defined(HAS_COPYROW_AVX) + if (TestCpuFlag(kCpuHasAVX)) { + CopyRow = IS_ALIGNED(width, 64) ? CopyRow_AVX : CopyRow_Any_AVX; + } +#endif +#if defined(HAS_COPYROW_ERMS) + if (TestCpuFlag(kCpuHasERMS)) { + CopyRow = CopyRow_ERMS; + } +#endif +#if defined(HAS_COPYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + CopyRow = IS_ALIGNED(width, 32) ? CopyRow_NEON : CopyRow_Any_NEON; + } +#endif +#if defined(HAS_COPYROW_MIPS) + if (TestCpuFlag(kCpuHasMIPS)) { + CopyRow = CopyRow_MIPS; + } +#endif + + // Copy plane + for (y = 0; y < height - 1; y += 2) { + CopyRow(src, dst, width); + CopyRow(src + src_stride_0, dst + dst_stride, width); + src += src_stride_0 + src_stride_1; + dst += dst_stride * 2; + } + if (height & 1) { + CopyRow(src, dst, width); + } +} + +// Support converting from FOURCC_M420 +// Useful for bandwidth constrained transports like USB 1.0 and 2.0 and for +// easy conversion to I420. +// M420 format description: +// M420 is row biplanar 420: 2 rows of Y and 1 row of UV. +// Chroma is half width / half height. (420) +// src_stride_m420 is row planar. Normally this will be the width in pixels. +// The UV plane is half width, but 2 values, so src_stride_m420 applies to +// this as well as the two Y planes. +static int X420ToI420(const uint8* src_y, + int src_stride_y0, int src_stride_y1, + const uint8* src_uv, int src_stride_uv, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; + int halfwidth = (width + 1) >> 1; + int halfheight = (height + 1) >> 1; + void (*SplitUVRow)(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int pix) = + SplitUVRow_C; + if (!src_y || !src_uv || + !dst_y || !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; + dst_y = dst_y + (height - 1) * dst_stride_y; + dst_u = dst_u + (halfheight - 1) * dst_stride_u; + dst_v = dst_v + (halfheight - 1) * dst_stride_v; + dst_stride_y = -dst_stride_y; + dst_stride_u = -dst_stride_u; + dst_stride_v = -dst_stride_v; + } + // Coalesce rows. + if (src_stride_y0 == width && + src_stride_y1 == width && + dst_stride_y == width) { + width *= height; + height = 1; + src_stride_y0 = src_stride_y1 = dst_stride_y = 0; + } + // Coalesce rows. + if (src_stride_uv == halfwidth * 2 && + dst_stride_u == halfwidth && + dst_stride_v == halfwidth) { + halfwidth *= halfheight; + halfheight = 1; + src_stride_uv = dst_stride_u = dst_stride_v = 0; + } +#if defined(HAS_SPLITUVROW_SSE2) + if (TestCpuFlag(kCpuHasSSE2)) { + SplitUVRow = SplitUVRow_Any_SSE2; + if (IS_ALIGNED(halfwidth, 16)) { + SplitUVRow = SplitUVRow_SSE2; + } + } +#endif +#if defined(HAS_SPLITUVROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + SplitUVRow = SplitUVRow_Any_AVX2; + if (IS_ALIGNED(halfwidth, 32)) { + SplitUVRow = SplitUVRow_AVX2; + } + } +#endif +#if defined(HAS_SPLITUVROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + SplitUVRow = SplitUVRow_Any_NEON; + if (IS_ALIGNED(halfwidth, 16)) { + SplitUVRow = SplitUVRow_NEON; + } + } +#endif +#if defined(HAS_SPLITUVROW_MIPS_DSPR2) + if (TestCpuFlag(kCpuHasMIPS_DSPR2) && + IS_ALIGNED(src_uv, 4) && IS_ALIGNED(src_stride_uv, 4) && + IS_ALIGNED(dst_u, 4) && IS_ALIGNED(dst_stride_u, 4) && + IS_ALIGNED(dst_v, 4) && IS_ALIGNED(dst_stride_v, 4)) { + SplitUVRow = SplitUVRow_Any_MIPS_DSPR2; + if (IS_ALIGNED(halfwidth, 16)) { + SplitUVRow = SplitUVRow_MIPS_DSPR2; + } + } +#endif + + if (dst_y) { + if (src_stride_y0 == src_stride_y1) { + CopyPlane(src_y, src_stride_y0, dst_y, dst_stride_y, width, height); + } else { + CopyPlane2(src_y, src_stride_y0, src_stride_y1, dst_y, dst_stride_y, + width, height); + } + } + + for (y = 0; y < halfheight; ++y) { + // Copy a row of UV. + SplitUVRow(src_uv, dst_u, dst_v, halfwidth); + dst_u += dst_stride_u; + dst_v += dst_stride_v; + src_uv += src_stride_uv; + } + return 0; +} + +// Convert NV12 to I420. +LIBYUV_API +int NV12ToI420(const uint8* src_y, int src_stride_y, + const uint8* src_uv, int src_stride_uv, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + return X420ToI420(src_y, src_stride_y, src_stride_y, + src_uv, src_stride_uv, + dst_y, dst_stride_y, + dst_u, dst_stride_u, + dst_v, dst_stride_v, + width, height); +} + +// Convert NV21 to I420. Same as NV12 but u and v pointers swapped. +LIBYUV_API +int NV21ToI420(const uint8* src_y, int src_stride_y, + const uint8* src_vu, int src_stride_vu, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + return X420ToI420(src_y, src_stride_y, src_stride_y, + src_vu, src_stride_vu, + dst_y, dst_stride_y, + dst_v, dst_stride_v, + dst_u, dst_stride_u, + width, height); +} + +// Convert M420 to I420. +LIBYUV_API +int M420ToI420(const uint8* src_m420, int src_stride_m420, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + return X420ToI420(src_m420, src_stride_m420, src_stride_m420 * 2, + src_m420 + src_stride_m420 * 2, src_stride_m420 * 3, + dst_y, dst_stride_y, + dst_u, dst_stride_u, + dst_v, dst_stride_v, + width, height); +} + +// Convert YUY2 to I420. +LIBYUV_API +int YUY2ToI420(const uint8* src_yuy2, int src_stride_yuy2, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; + void (*YUY2ToUVRow)(const uint8* src_yuy2, int src_stride_yuy2, + uint8* dst_u, uint8* dst_v, int pix) = YUY2ToUVRow_C; + void (*YUY2ToYRow)(const uint8* src_yuy2, + uint8* dst_y, int pix) = YUY2ToYRow_C; + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_yuy2 = src_yuy2 + (height - 1) * src_stride_yuy2; + src_stride_yuy2 = -src_stride_yuy2; + } +#if defined(HAS_YUY2TOYROW_SSE2) + if (TestCpuFlag(kCpuHasSSE2)) { + YUY2ToUVRow = YUY2ToUVRow_Any_SSE2; + YUY2ToYRow = YUY2ToYRow_Any_SSE2; + if (IS_ALIGNED(width, 16)) { + YUY2ToUVRow = YUY2ToUVRow_SSE2; + YUY2ToYRow = YUY2ToYRow_SSE2; + } + } +#endif +#if defined(HAS_YUY2TOYROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + YUY2ToUVRow = YUY2ToUVRow_Any_AVX2; + YUY2ToYRow = YUY2ToYRow_Any_AVX2; + if (IS_ALIGNED(width, 32)) { + YUY2ToUVRow = YUY2ToUVRow_AVX2; + YUY2ToYRow = YUY2ToYRow_AVX2; + } + } +#endif +#if defined(HAS_YUY2TOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + YUY2ToYRow = YUY2ToYRow_Any_NEON; + YUY2ToUVRow = YUY2ToUVRow_Any_NEON; + if (IS_ALIGNED(width, 16)) { + YUY2ToYRow = YUY2ToYRow_NEON; + YUY2ToUVRow = YUY2ToUVRow_NEON; + } + } +#endif + + for (y = 0; y < height - 1; y += 2) { + YUY2ToUVRow(src_yuy2, src_stride_yuy2, dst_u, dst_v, width); + YUY2ToYRow(src_yuy2, dst_y, width); + YUY2ToYRow(src_yuy2 + src_stride_yuy2, dst_y + dst_stride_y, width); + src_yuy2 += src_stride_yuy2 * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { + YUY2ToUVRow(src_yuy2, 0, dst_u, dst_v, width); + YUY2ToYRow(src_yuy2, dst_y, width); + } + return 0; +} + +// Convert UYVY to I420. +LIBYUV_API +int UYVYToI420(const uint8* src_uyvy, int src_stride_uyvy, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; + void (*UYVYToUVRow)(const uint8* src_uyvy, int src_stride_uyvy, + uint8* dst_u, uint8* dst_v, int pix) = UYVYToUVRow_C; + void (*UYVYToYRow)(const uint8* src_uyvy, + uint8* dst_y, int pix) = UYVYToYRow_C; + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_uyvy = src_uyvy + (height - 1) * src_stride_uyvy; + src_stride_uyvy = -src_stride_uyvy; + } +#if defined(HAS_UYVYTOYROW_SSE2) + if (TestCpuFlag(kCpuHasSSE2)) { + UYVYToUVRow = UYVYToUVRow_Any_SSE2; + UYVYToYRow = UYVYToYRow_Any_SSE2; + if (IS_ALIGNED(width, 16)) { + UYVYToUVRow = UYVYToUVRow_SSE2; + UYVYToYRow = UYVYToYRow_SSE2; + } + } +#endif +#if defined(HAS_UYVYTOYROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + UYVYToUVRow = UYVYToUVRow_Any_AVX2; + UYVYToYRow = UYVYToYRow_Any_AVX2; + if (IS_ALIGNED(width, 32)) { + UYVYToUVRow = UYVYToUVRow_AVX2; + UYVYToYRow = UYVYToYRow_AVX2; + } + } +#endif +#if defined(HAS_UYVYTOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + UYVYToYRow = UYVYToYRow_Any_NEON; + UYVYToUVRow = UYVYToUVRow_Any_NEON; + if (IS_ALIGNED(width, 16)) { + UYVYToYRow = UYVYToYRow_NEON; + UYVYToUVRow = UYVYToUVRow_NEON; + } + } +#endif + + for (y = 0; y < height - 1; y += 2) { + UYVYToUVRow(src_uyvy, src_stride_uyvy, dst_u, dst_v, width); + UYVYToYRow(src_uyvy, dst_y, width); + UYVYToYRow(src_uyvy + src_stride_uyvy, dst_y + dst_stride_y, width); + src_uyvy += src_stride_uyvy * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { + UYVYToUVRow(src_uyvy, 0, dst_u, dst_v, width); + UYVYToYRow(src_uyvy, dst_y, width); + } + return 0; +} + +// Convert ARGB to I420. +LIBYUV_API +int ARGBToI420(const uint8* src_argb, int src_stride_argb, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; + void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, + uint8* dst_u, uint8* dst_v, int width) = ARGBToUVRow_C; + void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = + ARGBToYRow_C; + if (!src_argb || + !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_argb = src_argb + (height - 1) * src_stride_argb; + src_stride_argb = -src_stride_argb; + } +#if defined(HAS_ARGBTOYROW_SSSE3) && defined(HAS_ARGBTOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + ARGBToUVRow = ARGBToUVRow_Any_SSSE3; + ARGBToYRow = ARGBToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + ARGBToUVRow = ARGBToUVRow_SSSE3; + ARGBToYRow = ARGBToYRow_SSSE3; + } + } +#endif +#if defined(HAS_ARGBTOYROW_AVX2) && defined(HAS_ARGBTOUVROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + ARGBToUVRow = ARGBToUVRow_Any_AVX2; + ARGBToYRow = ARGBToYRow_Any_AVX2; + if (IS_ALIGNED(width, 32)) { + ARGBToUVRow = ARGBToUVRow_AVX2; + ARGBToYRow = ARGBToYRow_AVX2; + } + } +#endif +#if defined(HAS_ARGBTOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + ARGBToYRow = ARGBToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + ARGBToYRow = ARGBToYRow_NEON; + } + } +#endif +#if defined(HAS_ARGBTOUVROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + ARGBToUVRow = ARGBToUVRow_Any_NEON; + if (IS_ALIGNED(width, 16)) { + ARGBToUVRow = ARGBToUVRow_NEON; + } + } +#endif + + for (y = 0; y < height - 1; y += 2) { + ARGBToUVRow(src_argb, src_stride_argb, dst_u, dst_v, width); + ARGBToYRow(src_argb, dst_y, width); + ARGBToYRow(src_argb + src_stride_argb, dst_y + dst_stride_y, width); + src_argb += src_stride_argb * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { + ARGBToUVRow(src_argb, 0, dst_u, dst_v, width); + ARGBToYRow(src_argb, dst_y, width); + } + return 0; +} + +// Convert BGRA to I420. +LIBYUV_API +int BGRAToI420(const uint8* src_bgra, int src_stride_bgra, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; + void (*BGRAToUVRow)(const uint8* src_bgra0, int src_stride_bgra, + uint8* dst_u, uint8* dst_v, int width) = BGRAToUVRow_C; + void (*BGRAToYRow)(const uint8* src_bgra, uint8* dst_y, int pix) = + BGRAToYRow_C; + if (!src_bgra || + !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_bgra = src_bgra + (height - 1) * src_stride_bgra; + src_stride_bgra = -src_stride_bgra; + } +#if defined(HAS_BGRATOYROW_SSSE3) && defined(HAS_BGRATOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + BGRAToUVRow = BGRAToUVRow_Any_SSSE3; + BGRAToYRow = BGRAToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + BGRAToUVRow = BGRAToUVRow_SSSE3; + BGRAToYRow = BGRAToYRow_SSSE3; + } + } +#endif +#if defined(HAS_BGRATOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + BGRAToYRow = BGRAToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + BGRAToYRow = BGRAToYRow_NEON; + } + } +#endif +#if defined(HAS_BGRATOUVROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + BGRAToUVRow = BGRAToUVRow_Any_NEON; + if (IS_ALIGNED(width, 16)) { + BGRAToUVRow = BGRAToUVRow_NEON; + } + } +#endif + + for (y = 0; y < height - 1; y += 2) { + BGRAToUVRow(src_bgra, src_stride_bgra, dst_u, dst_v, width); + BGRAToYRow(src_bgra, dst_y, width); + BGRAToYRow(src_bgra + src_stride_bgra, dst_y + dst_stride_y, width); + src_bgra += src_stride_bgra * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { + BGRAToUVRow(src_bgra, 0, dst_u, dst_v, width); + BGRAToYRow(src_bgra, dst_y, width); + } + return 0; +} + +// Convert ABGR to I420. +LIBYUV_API +int ABGRToI420(const uint8* src_abgr, int src_stride_abgr, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; + void (*ABGRToUVRow)(const uint8* src_abgr0, int src_stride_abgr, + uint8* dst_u, uint8* dst_v, int width) = ABGRToUVRow_C; + void (*ABGRToYRow)(const uint8* src_abgr, uint8* dst_y, int pix) = + ABGRToYRow_C; + if (!src_abgr || + !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_abgr = src_abgr + (height - 1) * src_stride_abgr; + src_stride_abgr = -src_stride_abgr; + } +#if defined(HAS_ABGRTOYROW_SSSE3) && defined(HAS_ABGRTOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + ABGRToUVRow = ABGRToUVRow_Any_SSSE3; + ABGRToYRow = ABGRToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + ABGRToUVRow = ABGRToUVRow_SSSE3; + ABGRToYRow = ABGRToYRow_SSSE3; + } + } +#endif +#if defined(HAS_ABGRTOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + ABGRToYRow = ABGRToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + ABGRToYRow = ABGRToYRow_NEON; + } + } +#endif +#if defined(HAS_ABGRTOUVROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + ABGRToUVRow = ABGRToUVRow_Any_NEON; + if (IS_ALIGNED(width, 16)) { + ABGRToUVRow = ABGRToUVRow_NEON; + } + } +#endif + + for (y = 0; y < height - 1; y += 2) { + ABGRToUVRow(src_abgr, src_stride_abgr, dst_u, dst_v, width); + ABGRToYRow(src_abgr, dst_y, width); + ABGRToYRow(src_abgr + src_stride_abgr, dst_y + dst_stride_y, width); + src_abgr += src_stride_abgr * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { + ABGRToUVRow(src_abgr, 0, dst_u, dst_v, width); + ABGRToYRow(src_abgr, dst_y, width); + } + return 0; +} + +// Convert RGBA to I420. +LIBYUV_API +int RGBAToI420(const uint8* src_rgba, int src_stride_rgba, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; + void (*RGBAToUVRow)(const uint8* src_rgba0, int src_stride_rgba, + uint8* dst_u, uint8* dst_v, int width) = RGBAToUVRow_C; + void (*RGBAToYRow)(const uint8* src_rgba, uint8* dst_y, int pix) = + RGBAToYRow_C; + if (!src_rgba || + !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_rgba = src_rgba + (height - 1) * src_stride_rgba; + src_stride_rgba = -src_stride_rgba; + } +#if defined(HAS_RGBATOYROW_SSSE3) && defined(HAS_RGBATOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + RGBAToUVRow = RGBAToUVRow_Any_SSSE3; + RGBAToYRow = RGBAToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + RGBAToUVRow = RGBAToUVRow_SSSE3; + RGBAToYRow = RGBAToYRow_SSSE3; + } + } +#endif +#if defined(HAS_RGBATOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + RGBAToYRow = RGBAToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + RGBAToYRow = RGBAToYRow_NEON; + } + } +#endif +#if defined(HAS_RGBATOUVROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + RGBAToUVRow = RGBAToUVRow_Any_NEON; + if (IS_ALIGNED(width, 16)) { + RGBAToUVRow = RGBAToUVRow_NEON; + } + } +#endif + + for (y = 0; y < height - 1; y += 2) { + RGBAToUVRow(src_rgba, src_stride_rgba, dst_u, dst_v, width); + RGBAToYRow(src_rgba, dst_y, width); + RGBAToYRow(src_rgba + src_stride_rgba, dst_y + dst_stride_y, width); + src_rgba += src_stride_rgba * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { + RGBAToUVRow(src_rgba, 0, dst_u, dst_v, width); + RGBAToYRow(src_rgba, dst_y, width); + } + return 0; +} + +// Convert RGB24 to I420. +LIBYUV_API +int RGB24ToI420(const uint8* src_rgb24, int src_stride_rgb24, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; +#if defined(HAS_RGB24TOYROW_NEON) + void (*RGB24ToUVRow)(const uint8* src_rgb24, int src_stride_rgb24, + uint8* dst_u, uint8* dst_v, int width) = RGB24ToUVRow_C; + void (*RGB24ToYRow)(const uint8* src_rgb24, uint8* dst_y, int pix) = + RGB24ToYRow_C; +#else + void (*RGB24ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix) = + RGB24ToARGBRow_C; + void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, + uint8* dst_u, uint8* dst_v, int width) = ARGBToUVRow_C; + void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = + ARGBToYRow_C; +#endif + if (!src_rgb24 || !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_rgb24 = src_rgb24 + (height - 1) * src_stride_rgb24; + src_stride_rgb24 = -src_stride_rgb24; + } + +// Neon version does direct RGB24 to YUV. +#if defined(HAS_RGB24TOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + RGB24ToUVRow = RGB24ToUVRow_Any_NEON; + RGB24ToYRow = RGB24ToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + RGB24ToYRow = RGB24ToYRow_NEON; + if (IS_ALIGNED(width, 16)) { + RGB24ToUVRow = RGB24ToUVRow_NEON; + } + } + } +// Other platforms do intermediate conversion from RGB24 to ARGB. +#else +#if defined(HAS_RGB24TOARGBROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + RGB24ToARGBRow = RGB24ToARGBRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + RGB24ToARGBRow = RGB24ToARGBRow_SSSE3; + } + } +#endif +#if defined(HAS_ARGBTOYROW_SSSE3) && defined(HAS_ARGBTOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + ARGBToUVRow = ARGBToUVRow_Any_SSSE3; + ARGBToYRow = ARGBToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + ARGBToUVRow = ARGBToUVRow_SSSE3; + ARGBToYRow = ARGBToYRow_SSSE3; + } + } +#endif +#if defined(HAS_ARGBTOYROW_AVX2) && defined(HAS_ARGBTOUVROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + ARGBToUVRow = ARGBToUVRow_Any_AVX2; + ARGBToYRow = ARGBToYRow_Any_AVX2; + if (IS_ALIGNED(width, 32)) { + ARGBToUVRow = ARGBToUVRow_AVX2; + ARGBToYRow = ARGBToYRow_AVX2; + } + } +#endif + { + // Allocate 2 rows of ARGB. + const int kRowSize = (width * 4 + 31) & ~31; + align_buffer_64(row, kRowSize * 2); +#endif + + for (y = 0; y < height - 1; y += 2) { +#if defined(HAS_RGB24TOYROW_NEON) + RGB24ToUVRow(src_rgb24, src_stride_rgb24, dst_u, dst_v, width); + RGB24ToYRow(src_rgb24, dst_y, width); + RGB24ToYRow(src_rgb24 + src_stride_rgb24, dst_y + dst_stride_y, width); +#else + RGB24ToARGBRow(src_rgb24, row, width); + RGB24ToARGBRow(src_rgb24 + src_stride_rgb24, row + kRowSize, width); + ARGBToUVRow(row, kRowSize, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); + ARGBToYRow(row + kRowSize, dst_y + dst_stride_y, width); +#endif + src_rgb24 += src_stride_rgb24 * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { +#if defined(HAS_RGB24TOYROW_NEON) + RGB24ToUVRow(src_rgb24, 0, dst_u, dst_v, width); + RGB24ToYRow(src_rgb24, dst_y, width); +#else + RGB24ToARGBRow(src_rgb24, row, width); + ARGBToUVRow(row, 0, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); +#endif + } +#if !defined(HAS_RGB24TOYROW_NEON) + free_aligned_buffer_64(row); + } +#endif + return 0; +} + +// Convert RAW to I420. +LIBYUV_API +int RAWToI420(const uint8* src_raw, int src_stride_raw, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; +#if defined(HAS_RAWTOYROW_NEON) + void (*RAWToUVRow)(const uint8* src_raw, int src_stride_raw, + uint8* dst_u, uint8* dst_v, int width) = RAWToUVRow_C; + void (*RAWToYRow)(const uint8* src_raw, uint8* dst_y, int pix) = + RAWToYRow_C; +#else + void (*RAWToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix) = + RAWToARGBRow_C; + void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, + uint8* dst_u, uint8* dst_v, int width) = ARGBToUVRow_C; + void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = + ARGBToYRow_C; +#endif + if (!src_raw || !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_raw = src_raw + (height - 1) * src_stride_raw; + src_stride_raw = -src_stride_raw; + } + +// Neon version does direct RAW to YUV. +#if defined(HAS_RAWTOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + RAWToUVRow = RAWToUVRow_Any_NEON; + RAWToYRow = RAWToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + RAWToYRow = RAWToYRow_NEON; + if (IS_ALIGNED(width, 16)) { + RAWToUVRow = RAWToUVRow_NEON; + } + } + } +// Other platforms do intermediate conversion from RAW to ARGB. +#else +#if defined(HAS_RAWTOARGBROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + RAWToARGBRow = RAWToARGBRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + RAWToARGBRow = RAWToARGBRow_SSSE3; + } + } +#endif +#if defined(HAS_ARGBTOYROW_SSSE3) && defined(HAS_ARGBTOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + ARGBToUVRow = ARGBToUVRow_Any_SSSE3; + ARGBToYRow = ARGBToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + ARGBToUVRow = ARGBToUVRow_SSSE3; + ARGBToYRow = ARGBToYRow_SSSE3; + } + } +#endif +#if defined(HAS_ARGBTOYROW_AVX2) && defined(HAS_ARGBTOUVROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + ARGBToUVRow = ARGBToUVRow_Any_AVX2; + ARGBToYRow = ARGBToYRow_Any_AVX2; + if (IS_ALIGNED(width, 32)) { + ARGBToUVRow = ARGBToUVRow_AVX2; + ARGBToYRow = ARGBToYRow_AVX2; + } + } +#endif + { + // Allocate 2 rows of ARGB. + const int kRowSize = (width * 4 + 31) & ~31; + align_buffer_64(row, kRowSize * 2); +#endif + + for (y = 0; y < height - 1; y += 2) { +#if defined(HAS_RAWTOYROW_NEON) + RAWToUVRow(src_raw, src_stride_raw, dst_u, dst_v, width); + RAWToYRow(src_raw, dst_y, width); + RAWToYRow(src_raw + src_stride_raw, dst_y + dst_stride_y, width); +#else + RAWToARGBRow(src_raw, row, width); + RAWToARGBRow(src_raw + src_stride_raw, row + kRowSize, width); + ARGBToUVRow(row, kRowSize, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); + ARGBToYRow(row + kRowSize, dst_y + dst_stride_y, width); +#endif + src_raw += src_stride_raw * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { +#if defined(HAS_RAWTOYROW_NEON) + RAWToUVRow(src_raw, 0, dst_u, dst_v, width); + RAWToYRow(src_raw, dst_y, width); +#else + RAWToARGBRow(src_raw, row, width); + ARGBToUVRow(row, 0, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); +#endif + } +#if !defined(HAS_RAWTOYROW_NEON) + free_aligned_buffer_64(row); + } +#endif + return 0; +} + +// Convert RGB565 to I420. +LIBYUV_API +int RGB565ToI420(const uint8* src_rgb565, int src_stride_rgb565, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; +#if defined(HAS_RGB565TOYROW_NEON) + void (*RGB565ToUVRow)(const uint8* src_rgb565, int src_stride_rgb565, + uint8* dst_u, uint8* dst_v, int width) = RGB565ToUVRow_C; + void (*RGB565ToYRow)(const uint8* src_rgb565, uint8* dst_y, int pix) = + RGB565ToYRow_C; +#else + void (*RGB565ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix) = + RGB565ToARGBRow_C; + void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, + uint8* dst_u, uint8* dst_v, int width) = ARGBToUVRow_C; + void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = + ARGBToYRow_C; +#endif + if (!src_rgb565 || !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_rgb565 = src_rgb565 + (height - 1) * src_stride_rgb565; + src_stride_rgb565 = -src_stride_rgb565; + } + +// Neon version does direct RGB565 to YUV. +#if defined(HAS_RGB565TOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + RGB565ToUVRow = RGB565ToUVRow_Any_NEON; + RGB565ToYRow = RGB565ToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + RGB565ToYRow = RGB565ToYRow_NEON; + if (IS_ALIGNED(width, 16)) { + RGB565ToUVRow = RGB565ToUVRow_NEON; + } + } + } +// Other platforms do intermediate conversion from RGB565 to ARGB. +#else +#if defined(HAS_RGB565TOARGBROW_SSE2) + if (TestCpuFlag(kCpuHasSSE2)) { + RGB565ToARGBRow = RGB565ToARGBRow_Any_SSE2; + if (IS_ALIGNED(width, 8)) { + RGB565ToARGBRow = RGB565ToARGBRow_SSE2; + } + } +#endif +#if defined(HAS_RGB565TOARGBROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + RGB565ToARGBRow = RGB565ToARGBRow_Any_AVX2; + if (IS_ALIGNED(width, 16)) { + RGB565ToARGBRow = RGB565ToARGBRow_AVX2; + } + } +#endif +#if defined(HAS_ARGBTOYROW_SSSE3) && defined(HAS_ARGBTOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + ARGBToUVRow = ARGBToUVRow_Any_SSSE3; + ARGBToYRow = ARGBToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + ARGBToUVRow = ARGBToUVRow_SSSE3; + ARGBToYRow = ARGBToYRow_SSSE3; + } + } +#endif +#if defined(HAS_ARGBTOYROW_AVX2) && defined(HAS_ARGBTOUVROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + ARGBToUVRow = ARGBToUVRow_Any_AVX2; + ARGBToYRow = ARGBToYRow_Any_AVX2; + if (IS_ALIGNED(width, 32)) { + ARGBToUVRow = ARGBToUVRow_AVX2; + ARGBToYRow = ARGBToYRow_AVX2; + } + } +#endif + { + // Allocate 2 rows of ARGB. + const int kRowSize = (width * 4 + 31) & ~31; + align_buffer_64(row, kRowSize * 2); +#endif + + for (y = 0; y < height - 1; y += 2) { +#if defined(HAS_RGB565TOYROW_NEON) + RGB565ToUVRow(src_rgb565, src_stride_rgb565, dst_u, dst_v, width); + RGB565ToYRow(src_rgb565, dst_y, width); + RGB565ToYRow(src_rgb565 + src_stride_rgb565, dst_y + dst_stride_y, width); +#else + RGB565ToARGBRow(src_rgb565, row, width); + RGB565ToARGBRow(src_rgb565 + src_stride_rgb565, row + kRowSize, width); + ARGBToUVRow(row, kRowSize, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); + ARGBToYRow(row + kRowSize, dst_y + dst_stride_y, width); +#endif + src_rgb565 += src_stride_rgb565 * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { +#if defined(HAS_RGB565TOYROW_NEON) + RGB565ToUVRow(src_rgb565, 0, dst_u, dst_v, width); + RGB565ToYRow(src_rgb565, dst_y, width); +#else + RGB565ToARGBRow(src_rgb565, row, width); + ARGBToUVRow(row, 0, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); +#endif + } +#if !defined(HAS_RGB565TOYROW_NEON) + free_aligned_buffer_64(row); + } +#endif + return 0; +} + +// Convert ARGB1555 to I420. +LIBYUV_API +int ARGB1555ToI420(const uint8* src_argb1555, int src_stride_argb1555, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; +#if defined(HAS_ARGB1555TOYROW_NEON) + void (*ARGB1555ToUVRow)(const uint8* src_argb1555, int src_stride_argb1555, + uint8* dst_u, uint8* dst_v, int width) = ARGB1555ToUVRow_C; + void (*ARGB1555ToYRow)(const uint8* src_argb1555, uint8* dst_y, int pix) = + ARGB1555ToYRow_C; +#else + void (*ARGB1555ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix) = + ARGB1555ToARGBRow_C; + void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, + uint8* dst_u, uint8* dst_v, int width) = ARGBToUVRow_C; + void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = + ARGBToYRow_C; +#endif + if (!src_argb1555 || !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_argb1555 = src_argb1555 + (height - 1) * src_stride_argb1555; + src_stride_argb1555 = -src_stride_argb1555; + } + +// Neon version does direct ARGB1555 to YUV. +#if defined(HAS_ARGB1555TOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + ARGB1555ToUVRow = ARGB1555ToUVRow_Any_NEON; + ARGB1555ToYRow = ARGB1555ToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + ARGB1555ToYRow = ARGB1555ToYRow_NEON; + if (IS_ALIGNED(width, 16)) { + ARGB1555ToUVRow = ARGB1555ToUVRow_NEON; + } + } + } +// Other platforms do intermediate conversion from ARGB1555 to ARGB. +#else +#if defined(HAS_ARGB1555TOARGBROW_SSE2) + if (TestCpuFlag(kCpuHasSSE2)) { + ARGB1555ToARGBRow = ARGB1555ToARGBRow_Any_SSE2; + if (IS_ALIGNED(width, 8)) { + ARGB1555ToARGBRow = ARGB1555ToARGBRow_SSE2; + } + } +#endif +#if defined(HAS_ARGB1555TOARGBROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + ARGB1555ToARGBRow = ARGB1555ToARGBRow_Any_AVX2; + if (IS_ALIGNED(width, 16)) { + ARGB1555ToARGBRow = ARGB1555ToARGBRow_AVX2; + } + } +#endif +#if defined(HAS_ARGBTOYROW_SSSE3) && defined(HAS_ARGBTOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + ARGBToUVRow = ARGBToUVRow_Any_SSSE3; + ARGBToYRow = ARGBToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + ARGBToUVRow = ARGBToUVRow_SSSE3; + ARGBToYRow = ARGBToYRow_SSSE3; + } + } +#endif +#if defined(HAS_ARGBTOYROW_AVX2) && defined(HAS_ARGBTOUVROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + ARGBToUVRow = ARGBToUVRow_Any_AVX2; + ARGBToYRow = ARGBToYRow_Any_AVX2; + if (IS_ALIGNED(width, 32)) { + ARGBToUVRow = ARGBToUVRow_AVX2; + ARGBToYRow = ARGBToYRow_AVX2; + } + } +#endif + { + // Allocate 2 rows of ARGB. + const int kRowSize = (width * 4 + 31) & ~31; + align_buffer_64(row, kRowSize * 2); +#endif + + for (y = 0; y < height - 1; y += 2) { +#if defined(HAS_ARGB1555TOYROW_NEON) + ARGB1555ToUVRow(src_argb1555, src_stride_argb1555, dst_u, dst_v, width); + ARGB1555ToYRow(src_argb1555, dst_y, width); + ARGB1555ToYRow(src_argb1555 + src_stride_argb1555, dst_y + dst_stride_y, + width); +#else + ARGB1555ToARGBRow(src_argb1555, row, width); + ARGB1555ToARGBRow(src_argb1555 + src_stride_argb1555, row + kRowSize, + width); + ARGBToUVRow(row, kRowSize, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); + ARGBToYRow(row + kRowSize, dst_y + dst_stride_y, width); +#endif + src_argb1555 += src_stride_argb1555 * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { +#if defined(HAS_ARGB1555TOYROW_NEON) + ARGB1555ToUVRow(src_argb1555, 0, dst_u, dst_v, width); + ARGB1555ToYRow(src_argb1555, dst_y, width); +#else + ARGB1555ToARGBRow(src_argb1555, row, width); + ARGBToUVRow(row, 0, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); +#endif + } +#if !defined(HAS_ARGB1555TOYROW_NEON) + free_aligned_buffer_64(row); + } +#endif + return 0; +} + +// Convert ARGB4444 to I420. +LIBYUV_API +int ARGB4444ToI420(const uint8* src_argb4444, int src_stride_argb4444, + uint8* dst_y, int dst_stride_y, + uint8* dst_u, int dst_stride_u, + uint8* dst_v, int dst_stride_v, + int width, int height) { + int y; +#if defined(HAS_ARGB4444TOYROW_NEON) + void (*ARGB4444ToUVRow)(const uint8* src_argb4444, int src_stride_argb4444, + uint8* dst_u, uint8* dst_v, int width) = ARGB4444ToUVRow_C; + void (*ARGB4444ToYRow)(const uint8* src_argb4444, uint8* dst_y, int pix) = + ARGB4444ToYRow_C; +#else + void (*ARGB4444ToARGBRow)(const uint8* src_rgb, uint8* dst_argb, int pix) = + ARGB4444ToARGBRow_C; + void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb, + uint8* dst_u, uint8* dst_v, int width) = ARGBToUVRow_C; + void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = + ARGBToYRow_C; +#endif + if (!src_argb4444 || !dst_y || !dst_u || !dst_v || + width <= 0 || height == 0) { + return -1; + } + // Negative height means invert the image. + if (height < 0) { + height = -height; + src_argb4444 = src_argb4444 + (height - 1) * src_stride_argb4444; + src_stride_argb4444 = -src_stride_argb4444; + } + +// Neon version does direct ARGB4444 to YUV. +#if defined(HAS_ARGB4444TOYROW_NEON) + if (TestCpuFlag(kCpuHasNEON)) { + ARGB4444ToUVRow = ARGB4444ToUVRow_Any_NEON; + ARGB4444ToYRow = ARGB4444ToYRow_Any_NEON; + if (IS_ALIGNED(width, 8)) { + ARGB4444ToYRow = ARGB4444ToYRow_NEON; + if (IS_ALIGNED(width, 16)) { + ARGB4444ToUVRow = ARGB4444ToUVRow_NEON; + } + } + } +// Other platforms do intermediate conversion from ARGB4444 to ARGB. +#else +#if defined(HAS_ARGB4444TOARGBROW_SSE2) + if (TestCpuFlag(kCpuHasSSE2)) { + ARGB4444ToARGBRow = ARGB4444ToARGBRow_Any_SSE2; + if (IS_ALIGNED(width, 8)) { + ARGB4444ToARGBRow = ARGB4444ToARGBRow_SSE2; + } + } +#endif +#if defined(HAS_ARGB4444TOARGBROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + ARGB4444ToARGBRow = ARGB4444ToARGBRow_Any_AVX2; + if (IS_ALIGNED(width, 16)) { + ARGB4444ToARGBRow = ARGB4444ToARGBRow_AVX2; + } + } +#endif +#if defined(HAS_ARGBTOYROW_SSSE3) && defined(HAS_ARGBTOUVROW_SSSE3) + if (TestCpuFlag(kCpuHasSSSE3)) { + ARGBToUVRow = ARGBToUVRow_Any_SSSE3; + ARGBToYRow = ARGBToYRow_Any_SSSE3; + if (IS_ALIGNED(width, 16)) { + ARGBToUVRow = ARGBToUVRow_SSSE3; + ARGBToYRow = ARGBToYRow_SSSE3; + } + } +#endif +#if defined(HAS_ARGBTOYROW_AVX2) && defined(HAS_ARGBTOUVROW_AVX2) + if (TestCpuFlag(kCpuHasAVX2)) { + ARGBToUVRow = ARGBToUVRow_Any_AVX2; + ARGBToYRow = ARGBToYRow_Any_AVX2; + if (IS_ALIGNED(width, 32)) { + ARGBToUVRow = ARGBToUVRow_AVX2; + ARGBToYRow = ARGBToYRow_AVX2; + } + } +#endif + { + // Allocate 2 rows of ARGB. + const int kRowSize = (width * 4 + 31) & ~31; + align_buffer_64(row, kRowSize * 2); +#endif + + for (y = 0; y < height - 1; y += 2) { +#if defined(HAS_ARGB4444TOYROW_NEON) + ARGB4444ToUVRow(src_argb4444, src_stride_argb4444, dst_u, dst_v, width); + ARGB4444ToYRow(src_argb4444, dst_y, width); + ARGB4444ToYRow(src_argb4444 + src_stride_argb4444, dst_y + dst_stride_y, + width); +#else + ARGB4444ToARGBRow(src_argb4444, row, width); + ARGB4444ToARGBRow(src_argb4444 + src_stride_argb4444, row + kRowSize, + width); + ARGBToUVRow(row, kRowSize, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); + ARGBToYRow(row + kRowSize, dst_y + dst_stride_y, width); +#endif + src_argb4444 += src_stride_argb4444 * 2; + dst_y += dst_stride_y * 2; + dst_u += dst_stride_u; + dst_v += dst_stride_v; + } + if (height & 1) { +#if defined(HAS_ARGB4444TOYROW_NEON) + ARGB4444ToUVRow(src_argb4444, 0, dst_u, dst_v, width); + ARGB4444ToYRow(src_argb4444, dst_y, width); +#else + ARGB4444ToARGBRow(src_argb4444, row, width); + ARGBToUVRow(row, 0, dst_u, dst_v, width); + ARGBToYRow(row, dst_y, width); +#endif + } +#if !defined(HAS_ARGB4444TOYROW_NEON) + free_aligned_buffer_64(row); + } +#endif + return 0; +} + +#ifdef __cplusplus +} // extern "C" +} // namespace libyuv +#endif |