| /* | 
 |  *  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_argb.h" | 
 |  | 
 | #include "libyuv/basic_types.h" | 
 | #include "libyuv/cpu_id.h" | 
 | #include "libyuv/planar_functions.h" | 
 | #include "libyuv/row.h" | 
 |  | 
 | #ifdef __cplusplus | 
 | namespace libyuv { | 
 | extern "C" { | 
 | #endif | 
 |  | 
 | // ARGB little endian (bgra in memory) to I444 | 
 | LIBYUV_API | 
 | int ARGBToI444(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 (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = | 
 |       ARGBToYRow_C; | 
 |   void (*ARGBToUV444Row)(const uint8* src_argb, uint8* dst_u, uint8* dst_v, | 
 |       int pix) = ARGBToUV444Row_C; | 
 |   if (!src_argb || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_y == width && | 
 |       dst_stride_u == width && | 
 |       dst_stride_v == width) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_y = dst_stride_u = dst_stride_v = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOUV444ROW_SSSE3) | 
 |     if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |       ARGBToUV444Row = ARGBToUV444Row_Any_SSSE3; | 
 |       if (IS_ALIGNED(width, 16)) { | 
 |         ARGBToUV444Row = ARGBToUV444Row_SSSE3; | 
 |       } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOUV444ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToUV444Row = ARGBToUV444Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToUV444Row = ARGBToUV444Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToYRow = ARGBToYRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       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 | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToUV444Row(src_argb, dst_u, dst_v, width); | 
 |     ARGBToYRow(src_argb, dst_y, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_y += dst_stride_y; | 
 |     dst_u += dst_stride_u; | 
 |     dst_v += dst_stride_v; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // ARGB little endian (bgra in memory) to I422 | 
 | LIBYUV_API | 
 | int ARGBToI422(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 (*ARGBToUV422Row)(const uint8* src_argb, uint8* dst_u, uint8* dst_v, | 
 |       int pix) = ARGBToUV422Row_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; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_y == width && | 
 |       dst_stride_u * 2 == width && | 
 |       dst_stride_v * 2 == width) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_y = dst_stride_u = dst_stride_v = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOUV422ROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToUV422Row = ARGBToUV422Row_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUV422Row = ARGBToUV422Row_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOUV422ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToUV422Row = ARGBToUV422Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUV422Row = ARGBToUV422Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToYRow = ARGBToYRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       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 | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToUV422Row(src_argb, dst_u, dst_v, width); | 
 |     ARGBToYRow(src_argb, dst_y, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_y += dst_stride_y; | 
 |     dst_u += dst_stride_u; | 
 |     dst_v += dst_stride_v; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // ARGB little endian (bgra in memory) to I411 | 
 | LIBYUV_API | 
 | int ARGBToI411(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 (*ARGBToUV411Row)(const uint8* src_argb, uint8* dst_u, uint8* dst_v, | 
 |       int pix) = ARGBToUV411Row_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; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_y == width && | 
 |       dst_stride_u * 4 == width && | 
 |       dst_stride_v * 4 == width) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_y = dst_stride_u = dst_stride_v = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOYROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToYRow = ARGBToYRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       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_ARGBTOUV411ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToUV411Row = ARGBToUV411Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       ARGBToUV411Row = ARGBToUV411Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToUV411Row(src_argb, dst_u, dst_v, width); | 
 |     ARGBToYRow(src_argb, dst_y, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_y += dst_stride_y; | 
 |     dst_u += dst_stride_u; | 
 |     dst_v += dst_stride_v; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | LIBYUV_API | 
 | int ARGBToNV12(const uint8* src_argb, int src_stride_argb, | 
 |                uint8* dst_y, int dst_stride_y, | 
 |                uint8* dst_uv, int dst_stride_uv, | 
 |                int width, int height) { | 
 |   int y; | 
 |   int halfwidth = (width + 1) >> 1; | 
 |   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; | 
 |   void (*MergeUVRow_)(const uint8* src_u, const uint8* src_v, uint8* dst_uv, | 
 |                       int width) = MergeUVRow_C; | 
 |   if (!src_argb || | 
 |       !dst_y || !dst_uv || | 
 |       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 | 
 | #if defined(HAS_MERGEUVROW_SSE2) | 
 |   if (TestCpuFlag(kCpuHasSSE2)) { | 
 |     MergeUVRow_ = MergeUVRow_Any_SSE2; | 
 |     if (IS_ALIGNED(halfwidth, 16)) { | 
 |       MergeUVRow_ = MergeUVRow_SSE2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_MERGEUVROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     MergeUVRow_ = MergeUVRow_Any_AVX2; | 
 |     if (IS_ALIGNED(halfwidth, 32)) { | 
 |       MergeUVRow_ = MergeUVRow_AVX2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_MERGEUVROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     MergeUVRow_ = MergeUVRow_Any_NEON; | 
 |     if (IS_ALIGNED(halfwidth, 16)) { | 
 |       MergeUVRow_ = MergeUVRow_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |   { | 
 |     // Allocate a rows of uv. | 
 |     align_buffer_64(row_u, ((halfwidth + 31) & ~31) * 2); | 
 |     uint8* row_v = row_u + ((halfwidth + 31) & ~31); | 
 |  | 
 |     for (y = 0; y < height - 1; y += 2) { | 
 |       ARGBToUVRow(src_argb, src_stride_argb, row_u, row_v, width); | 
 |       MergeUVRow_(row_u, row_v, dst_uv, halfwidth); | 
 |       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_uv += dst_stride_uv; | 
 |     } | 
 |     if (height & 1) { | 
 |       ARGBToUVRow(src_argb, 0, row_u, row_v, width); | 
 |       MergeUVRow_(row_u, row_v, dst_uv, halfwidth); | 
 |       ARGBToYRow(src_argb, dst_y, width); | 
 |     } | 
 |     free_aligned_buffer_64(row_u); | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Same as NV12 but U and V swapped. | 
 | LIBYUV_API | 
 | int ARGBToNV21(const uint8* src_argb, int src_stride_argb, | 
 |                uint8* dst_y, int dst_stride_y, | 
 |                uint8* dst_uv, int dst_stride_uv, | 
 |                int width, int height) { | 
 |   int y; | 
 |   int halfwidth = (width + 1) >> 1; | 
 |   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; | 
 |   void (*MergeUVRow_)(const uint8* src_u, const uint8* src_v, uint8* dst_uv, | 
 |                       int width) = MergeUVRow_C; | 
 |   if (!src_argb || | 
 |       !dst_y || !dst_uv || | 
 |       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 | 
 | #if defined(HAS_MERGEUVROW_SSE2) | 
 |   if (TestCpuFlag(kCpuHasSSE2)) { | 
 |     MergeUVRow_ = MergeUVRow_Any_SSE2; | 
 |     if (IS_ALIGNED(halfwidth, 16)) { | 
 |       MergeUVRow_ = MergeUVRow_SSE2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_MERGEUVROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     MergeUVRow_ = MergeUVRow_Any_AVX2; | 
 |     if (IS_ALIGNED(halfwidth, 32)) { | 
 |       MergeUVRow_ = MergeUVRow_AVX2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_MERGEUVROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     MergeUVRow_ = MergeUVRow_Any_NEON; | 
 |     if (IS_ALIGNED(halfwidth, 16)) { | 
 |       MergeUVRow_ = MergeUVRow_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |   { | 
 |     // Allocate a rows of uv. | 
 |     align_buffer_64(row_u, ((halfwidth + 31) & ~31) * 2); | 
 |     uint8* row_v = row_u + ((halfwidth + 31) & ~31); | 
 |  | 
 |     for (y = 0; y < height - 1; y += 2) { | 
 |       ARGBToUVRow(src_argb, src_stride_argb, row_u, row_v, width); | 
 |       MergeUVRow_(row_v, row_u, dst_uv, halfwidth); | 
 |       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_uv += dst_stride_uv; | 
 |     } | 
 |     if (height & 1) { | 
 |       ARGBToUVRow(src_argb, 0, row_u, row_v, width); | 
 |       MergeUVRow_(row_v, row_u, dst_uv, halfwidth); | 
 |       ARGBToYRow(src_argb, dst_y, width); | 
 |     } | 
 |     free_aligned_buffer_64(row_u); | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB to YUY2. | 
 | LIBYUV_API | 
 | int ARGBToYUY2(const uint8* src_argb, int src_stride_argb, | 
 |                uint8* dst_yuy2, int dst_stride_yuy2, | 
 |                int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToUV422Row)(const uint8* src_argb, uint8* dst_u, uint8* dst_v, | 
 |       int pix) = ARGBToUV422Row_C; | 
 |   void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = | 
 |       ARGBToYRow_C; | 
 |   void (*I422ToYUY2Row)(const uint8* src_y, const uint8* src_u, | 
 |       const uint8* src_v, uint8* dst_yuy2, int width) = I422ToYUY2Row_C; | 
 |  | 
 |   if (!src_argb || !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_argb == width * 4 && | 
 |       dst_stride_yuy2 == width * 2) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_yuy2 = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOUV422ROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToUV422Row = ARGBToUV422Row_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUV422Row = ARGBToUV422Row_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOUV422ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToUV422Row = ARGBToUV422Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUV422Row = ARGBToUV422Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToYRow = ARGBToYRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       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_I422TOYUY2ROW_SSE2) | 
 |   if (TestCpuFlag(kCpuHasSSE2)) { | 
 |     I422ToYUY2Row = I422ToYUY2Row_Any_SSE2; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       I422ToYUY2Row = I422ToYUY2Row_SSE2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_I422TOYUY2ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     I422ToYUY2Row = I422ToYUY2Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       I422ToYUY2Row = I422ToYUY2Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   { | 
 |     // Allocate a rows of yuv. | 
 |     align_buffer_64(row_y, ((width + 63) & ~63) * 2); | 
 |     uint8* row_u = row_y + ((width + 63) & ~63); | 
 |     uint8* row_v = row_u + ((width + 63) & ~63) / 2; | 
 |  | 
 |     for (y = 0; y < height; ++y) { | 
 |       ARGBToUV422Row(src_argb, row_u, row_v, width); | 
 |       ARGBToYRow(src_argb, row_y, width); | 
 |       I422ToYUY2Row(row_y, row_u, row_v, dst_yuy2, width); | 
 |       src_argb += src_stride_argb; | 
 |       dst_yuy2 += dst_stride_yuy2; | 
 |     } | 
 |  | 
 |     free_aligned_buffer_64(row_y); | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB to UYVY. | 
 | LIBYUV_API | 
 | int ARGBToUYVY(const uint8* src_argb, int src_stride_argb, | 
 |                uint8* dst_uyvy, int dst_stride_uyvy, | 
 |                int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToUV422Row)(const uint8* src_argb, uint8* dst_u, uint8* dst_v, | 
 |       int pix) = ARGBToUV422Row_C; | 
 |   void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = | 
 |       ARGBToYRow_C; | 
 |   void (*I422ToUYVYRow)(const uint8* src_y, const uint8* src_u, | 
 |       const uint8* src_v, uint8* dst_uyvy, int width) = I422ToUYVYRow_C; | 
 |  | 
 |   if (!src_argb || !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_argb == width * 4 && | 
 |       dst_stride_uyvy == width * 2) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_uyvy = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOUV422ROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToUV422Row = ARGBToUV422Row_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUV422Row = ARGBToUV422Row_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOUV422ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToUV422Row = ARGBToUV422Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUV422Row = ARGBToUV422Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToYRow = ARGBToYRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       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_I422TOUYVYROW_SSE2) | 
 |   if (TestCpuFlag(kCpuHasSSE2)) { | 
 |     I422ToUYVYRow = I422ToUYVYRow_Any_SSE2; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       I422ToUYVYRow = I422ToUYVYRow_SSE2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_I422TOUYVYROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     I422ToUYVYRow = I422ToUYVYRow_Any_NEON; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       I422ToUYVYRow = I422ToUYVYRow_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   { | 
 |     // Allocate a rows of yuv. | 
 |     align_buffer_64(row_y, ((width + 63) & ~63) * 2); | 
 |     uint8* row_u = row_y + ((width + 63) & ~63); | 
 |     uint8* row_v = row_u + ((width + 63) & ~63) / 2; | 
 |  | 
 |     for (y = 0; y < height; ++y) { | 
 |       ARGBToUV422Row(src_argb, row_u, row_v, width); | 
 |       ARGBToYRow(src_argb, row_y, width); | 
 |       I422ToUYVYRow(row_y, row_u, row_v, dst_uyvy, width); | 
 |       src_argb += src_stride_argb; | 
 |       dst_uyvy += dst_stride_uyvy; | 
 |     } | 
 |  | 
 |     free_aligned_buffer_64(row_y); | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB to I400. | 
 | LIBYUV_API | 
 | int ARGBToI400(const uint8* src_argb, int src_stride_argb, | 
 |                uint8* dst_y, int dst_stride_y, | 
 |                int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) = | 
 |       ARGBToYRow_C; | 
 |   if (!src_argb || !dst_y || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_y == width) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_y = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOYROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToYRow = ARGBToYRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYRow = ARGBToYRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       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 | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToYRow(src_argb, dst_y, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_y += dst_stride_y; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Shuffle table for converting ARGB to RGBA. | 
 | static uvec8 kShuffleMaskARGBToRGBA = { | 
 |   3u, 0u, 1u, 2u, 7u, 4u, 5u, 6u, 11u, 8u, 9u, 10u, 15u, 12u, 13u, 14u | 
 | }; | 
 |  | 
 | // Convert ARGB to RGBA. | 
 | LIBYUV_API | 
 | int ARGBToRGBA(const uint8* src_argb, int src_stride_argb, | 
 |                uint8* dst_rgba, int dst_stride_rgba, | 
 |                int width, int height) { | 
 |   return ARGBShuffle(src_argb, src_stride_argb, | 
 |                      dst_rgba, dst_stride_rgba, | 
 |                      (const uint8*)(&kShuffleMaskARGBToRGBA), | 
 |                      width, height); | 
 | } | 
 |  | 
 | // Convert ARGB To RGB24. | 
 | LIBYUV_API | 
 | int ARGBToRGB24(const uint8* src_argb, int src_stride_argb, | 
 |                 uint8* dst_rgb24, int dst_stride_rgb24, | 
 |                 int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToRGB24Row)(const uint8* src_argb, uint8* dst_rgb, int pix) = | 
 |       ARGBToRGB24Row_C; | 
 |   if (!src_argb || !dst_rgb24 || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_rgb24 == width * 3) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_rgb24 = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTORGB24ROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToRGB24Row = ARGBToRGB24Row_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToRGB24Row = ARGBToRGB24Row_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTORGB24ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToRGB24Row = ARGBToRGB24Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToRGB24Row = ARGBToRGB24Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToRGB24Row(src_argb, dst_rgb24, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_rgb24 += dst_stride_rgb24; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB To RAW. | 
 | LIBYUV_API | 
 | int ARGBToRAW(const uint8* src_argb, int src_stride_argb, | 
 |               uint8* dst_raw, int dst_stride_raw, | 
 |               int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToRAWRow)(const uint8* src_argb, uint8* dst_rgb, int pix) = | 
 |       ARGBToRAWRow_C; | 
 |   if (!src_argb || !dst_raw || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_raw == width * 3) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_raw = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTORAWROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToRAWRow = ARGBToRAWRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToRAWRow = ARGBToRAWRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTORAWROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToRAWRow = ARGBToRAWRow_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToRAWRow = ARGBToRAWRow_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToRAWRow(src_argb, dst_raw, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_raw += dst_stride_raw; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Ordered 8x8 dither for 888 to 565.  Values from 0 to 7. | 
 | static const uint8 kDither565_4x4[16] = { | 
 |   0, 4, 1, 5, | 
 |   6, 2, 7, 3, | 
 |   1, 5, 0, 4, | 
 |   7, 3, 6, 2, | 
 | }; | 
 |  | 
 | // Convert ARGB To RGB565 with 4x4 dither matrix (16 bytes). | 
 | LIBYUV_API | 
 | int ARGBToRGB565Dither(const uint8* src_argb, int src_stride_argb, | 
 |                        uint8* dst_rgb565, int dst_stride_rgb565, | 
 |                        const uint8* dither4x4, int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToRGB565DitherRow)(const uint8* src_argb, uint8* dst_rgb, | 
 |       const uint32 dither4, int pix) = ARGBToRGB565DitherRow_C; | 
 |   if (!src_argb || !dst_rgb565 || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   if (!dither4x4) { | 
 |     dither4x4 = kDither565_4x4; | 
 |   } | 
 | #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 | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToRGB565DitherRow(src_argb, dst_rgb565, | 
 |                           *(uint32*)(dither4x4 + ((y & 3) << 2)), width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_rgb565 += dst_stride_rgb565; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB To RGB565. | 
 | // TODO(fbarchard): Consider using dither function low level with zeros. | 
 | LIBYUV_API | 
 | int ARGBToRGB565(const uint8* src_argb, int src_stride_argb, | 
 |                  uint8* dst_rgb565, int dst_stride_rgb565, | 
 |                  int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToRGB565Row)(const uint8* src_argb, uint8* dst_rgb, int pix) = | 
 |       ARGBToRGB565Row_C; | 
 |   if (!src_argb || !dst_rgb565 || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_rgb565 == width * 2) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_rgb565 = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTORGB565ROW_SSE2) | 
 |   if (TestCpuFlag(kCpuHasSSE2)) { | 
 |     ARGBToRGB565Row = ARGBToRGB565Row_Any_SSE2; | 
 |     if (IS_ALIGNED(width, 4)) { | 
 |       ARGBToRGB565Row = ARGBToRGB565Row_SSE2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTORGB565ROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToRGB565Row = ARGBToRGB565Row_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToRGB565Row = ARGBToRGB565Row_AVX2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTORGB565ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToRGB565Row = ARGBToRGB565Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToRGB565Row = ARGBToRGB565Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToRGB565Row(src_argb, dst_rgb565, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_rgb565 += dst_stride_rgb565; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB To ARGB1555. | 
 | LIBYUV_API | 
 | int ARGBToARGB1555(const uint8* src_argb, int src_stride_argb, | 
 |                    uint8* dst_argb1555, int dst_stride_argb1555, | 
 |                    int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToARGB1555Row)(const uint8* src_argb, uint8* dst_rgb, int pix) = | 
 |       ARGBToARGB1555Row_C; | 
 |   if (!src_argb || !dst_argb1555 || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_argb1555 == width * 2) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_argb1555 = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOARGB1555ROW_SSE2) | 
 |   if (TestCpuFlag(kCpuHasSSE2)) { | 
 |     ARGBToARGB1555Row = ARGBToARGB1555Row_Any_SSE2; | 
 |     if (IS_ALIGNED(width, 4)) { | 
 |       ARGBToARGB1555Row = ARGBToARGB1555Row_SSE2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOARGB1555ROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToARGB1555Row = ARGBToARGB1555Row_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToARGB1555Row = ARGBToARGB1555Row_AVX2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOARGB1555ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToARGB1555Row = ARGBToARGB1555Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToARGB1555Row = ARGBToARGB1555Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToARGB1555Row(src_argb, dst_argb1555, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_argb1555 += dst_stride_argb1555; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB To ARGB4444. | 
 | LIBYUV_API | 
 | int ARGBToARGB4444(const uint8* src_argb, int src_stride_argb, | 
 |                    uint8* dst_argb4444, int dst_stride_argb4444, | 
 |                    int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToARGB4444Row)(const uint8* src_argb, uint8* dst_rgb, int pix) = | 
 |       ARGBToARGB4444Row_C; | 
 |   if (!src_argb || !dst_argb4444 || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_argb4444 == width * 2) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_argb4444 = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOARGB4444ROW_SSE2) | 
 |   if (TestCpuFlag(kCpuHasSSE2)) { | 
 |     ARGBToARGB4444Row = ARGBToARGB4444Row_Any_SSE2; | 
 |     if (IS_ALIGNED(width, 4)) { | 
 |       ARGBToARGB4444Row = ARGBToARGB4444Row_SSE2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOARGB4444ROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToARGB4444Row = ARGBToARGB4444Row_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToARGB4444Row = ARGBToARGB4444Row_AVX2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOARGB4444ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToARGB4444Row = ARGBToARGB4444Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToARGB4444Row = ARGBToARGB4444Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToARGB4444Row(src_argb, dst_argb4444, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_argb4444 += dst_stride_argb4444; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB to J420. (JPeg full range I420). | 
 | LIBYUV_API | 
 | int ARGBToJ420(const uint8* src_argb, int src_stride_argb, | 
 |                uint8* dst_yj, int dst_stride_yj, | 
 |                uint8* dst_u, int dst_stride_u, | 
 |                uint8* dst_v, int dst_stride_v, | 
 |                int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToUVJRow)(const uint8* src_argb0, int src_stride_argb, | 
 |                        uint8* dst_u, uint8* dst_v, int width) = ARGBToUVJRow_C; | 
 |   void (*ARGBToYJRow)(const uint8* src_argb, uint8* dst_yj, int pix) = | 
 |       ARGBToYJRow_C; | 
 |   if (!src_argb || | 
 |       !dst_yj || !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_ARGBTOYJROW_SSSE3) && defined(HAS_ARGBTOUVJROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToUVJRow = ARGBToUVJRow_Any_SSSE3; | 
 |     ARGBToYJRow = ARGBToYJRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUVJRow = ARGBToUVJRow_SSSE3; | 
 |       ARGBToYJRow = ARGBToYJRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYJROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYJRow = ARGBToYJRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       ARGBToYJRow = ARGBToYJRow_AVX2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYJROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToYJRow = ARGBToYJRow_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToYJRow = ARGBToYJRow_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOUVJROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToUVJRow = ARGBToUVJRow_Any_NEON; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUVJRow = ARGBToUVJRow_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height - 1; y += 2) { | 
 |     ARGBToUVJRow(src_argb, src_stride_argb, dst_u, dst_v, width); | 
 |     ARGBToYJRow(src_argb, dst_yj, width); | 
 |     ARGBToYJRow(src_argb + src_stride_argb, dst_yj + dst_stride_yj, width); | 
 |     src_argb += src_stride_argb * 2; | 
 |     dst_yj += dst_stride_yj * 2; | 
 |     dst_u += dst_stride_u; | 
 |     dst_v += dst_stride_v; | 
 |   } | 
 |   if (height & 1) { | 
 |     ARGBToUVJRow(src_argb, 0, dst_u, dst_v, width); | 
 |     ARGBToYJRow(src_argb, dst_yj, width); | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // ARGB little endian (bgra in memory) to J422 | 
 | LIBYUV_API | 
 | int ARGBToJ422(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 (*ARGBToUVJ422Row)(const uint8* src_argb, uint8* dst_u, uint8* dst_v, | 
 |       int pix) = ARGBToUVJ422Row_C; | 
 |   void (*ARGBToYJRow)(const uint8* src_argb, uint8* dst_y, int pix) = | 
 |       ARGBToYJRow_C; | 
 |   if (!src_argb || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_y == width && | 
 |       dst_stride_u * 2 == width && | 
 |       dst_stride_v * 2 == width) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_y = dst_stride_u = dst_stride_v = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOUVJ422ROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToUVJ422Row = ARGBToUVJ422Row_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUVJ422Row = ARGBToUVJ422Row_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOUVJ422ROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToUVJ422Row = ARGBToUVJ422Row_Any_NEON; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToUVJ422Row = ARGBToUVJ422Row_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 | #if defined(HAS_ARGBTOYJROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToYJRow = ARGBToYJRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToYJRow = ARGBToYJRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYJROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYJRow = ARGBToYJRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       ARGBToYJRow = ARGBToYJRow_AVX2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYJROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToYJRow = ARGBToYJRow_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToYJRow = ARGBToYJRow_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToUVJ422Row(src_argb, dst_u, dst_v, width); | 
 |     ARGBToYJRow(src_argb, dst_y, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_y += dst_stride_y; | 
 |     dst_u += dst_stride_u; | 
 |     dst_v += dst_stride_v; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | // Convert ARGB to J400. | 
 | LIBYUV_API | 
 | int ARGBToJ400(const uint8* src_argb, int src_stride_argb, | 
 |                uint8* dst_yj, int dst_stride_yj, | 
 |                int width, int height) { | 
 |   int y; | 
 |   void (*ARGBToYJRow)(const uint8* src_argb, uint8* dst_yj, int pix) = | 
 |       ARGBToYJRow_C; | 
 |   if (!src_argb || !dst_yj || width <= 0 || height == 0) { | 
 |     return -1; | 
 |   } | 
 |   if (height < 0) { | 
 |     height = -height; | 
 |     src_argb = src_argb + (height - 1) * src_stride_argb; | 
 |     src_stride_argb = -src_stride_argb; | 
 |   } | 
 |   // Coalesce rows. | 
 |   if (src_stride_argb == width * 4 && | 
 |       dst_stride_yj == width) { | 
 |     width *= height; | 
 |     height = 1; | 
 |     src_stride_argb = dst_stride_yj = 0; | 
 |   } | 
 | #if defined(HAS_ARGBTOYJROW_SSSE3) | 
 |   if (TestCpuFlag(kCpuHasSSSE3)) { | 
 |     ARGBToYJRow = ARGBToYJRow_Any_SSSE3; | 
 |     if (IS_ALIGNED(width, 16)) { | 
 |       ARGBToYJRow = ARGBToYJRow_SSSE3; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYJROW_AVX2) | 
 |   if (TestCpuFlag(kCpuHasAVX2)) { | 
 |     ARGBToYJRow = ARGBToYJRow_Any_AVX2; | 
 |     if (IS_ALIGNED(width, 32)) { | 
 |       ARGBToYJRow = ARGBToYJRow_AVX2; | 
 |     } | 
 |   } | 
 | #endif | 
 | #if defined(HAS_ARGBTOYJROW_NEON) | 
 |   if (TestCpuFlag(kCpuHasNEON)) { | 
 |     ARGBToYJRow = ARGBToYJRow_Any_NEON; | 
 |     if (IS_ALIGNED(width, 8)) { | 
 |       ARGBToYJRow = ARGBToYJRow_NEON; | 
 |     } | 
 |   } | 
 | #endif | 
 |  | 
 |   for (y = 0; y < height; ++y) { | 
 |     ARGBToYJRow(src_argb, dst_yj, width); | 
 |     src_argb += src_stride_argb; | 
 |     dst_yj += dst_stride_yj; | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | #ifdef __cplusplus | 
 | }  // extern "C" | 
 | }  // namespace libyuv | 
 | #endif |