|  | /* | 
|  | *  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/planar_functions.h" | 
|  |  | 
|  | #include <string.h>  // for memset() | 
|  |  | 
|  | #include "libyuv/cpu_id.h" | 
|  | #ifdef HAVE_JPEG | 
|  | #include "libyuv/mjpeg_decoder.h" | 
|  | #endif | 
|  | #include "libyuv/row.h" | 
|  |  | 
|  | #ifdef __cplusplus | 
|  | namespace libyuv { | 
|  | extern "C" { | 
|  | #endif | 
|  |  | 
|  | // Copy a plane of data | 
|  | LIBYUV_API | 
|  | void CopyPlane(const uint8* src_y, int src_stride_y, | 
|  | uint8* dst_y, int dst_stride_y, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*CopyRow)(const uint8* src, uint8* dst, int width) = CopyRow_C; | 
|  | // Coalesce rows. | 
|  | if (src_stride_y == width && | 
|  | dst_stride_y == width) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_y = dst_stride_y = 0; | 
|  | } | 
|  | // Nothing to do. | 
|  | if (src_y == dst_y && src_stride_y == dst_stride_y) { | 
|  | return; | 
|  | } | 
|  | #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; ++y) { | 
|  | CopyRow(src_y, dst_y, width); | 
|  | src_y += src_stride_y; | 
|  | dst_y += dst_stride_y; | 
|  | } | 
|  | } | 
|  |  | 
|  | LIBYUV_API | 
|  | void CopyPlane_16(const uint16* src_y, int src_stride_y, | 
|  | uint16* dst_y, int dst_stride_y, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*CopyRow)(const uint16* src, uint16* dst, int width) = CopyRow_16_C; | 
|  | // Coalesce rows. | 
|  | if (src_stride_y == width && | 
|  | dst_stride_y == width) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_y = dst_stride_y = 0; | 
|  | } | 
|  | #if defined(HAS_COPYROW_16_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 32)) { | 
|  | CopyRow = CopyRow_16_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_COPYROW_16_ERMS) | 
|  | if (TestCpuFlag(kCpuHasERMS)) { | 
|  | CopyRow = CopyRow_16_ERMS; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_COPYROW_16_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 32)) { | 
|  | CopyRow = CopyRow_16_NEON; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_COPYROW_16_MIPS) | 
|  | if (TestCpuFlag(kCpuHasMIPS)) { | 
|  | CopyRow = CopyRow_16_MIPS; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | // Copy plane | 
|  | for (y = 0; y < height; ++y) { | 
|  | CopyRow(src_y, dst_y, width); | 
|  | src_y += src_stride_y; | 
|  | dst_y += dst_stride_y; | 
|  | } | 
|  | } | 
|  |  | 
|  | // Copy I422. | 
|  | LIBYUV_API | 
|  | int I422Copy(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; | 
|  | 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; | 
|  | src_y = src_y + (height - 1) * src_stride_y; | 
|  | src_u = src_u + (height - 1) * src_stride_u; | 
|  | src_v = src_v + (height - 1) * src_stride_v; | 
|  | src_stride_y = -src_stride_y; | 
|  | src_stride_u = -src_stride_u; | 
|  | src_stride_v = -src_stride_v; | 
|  | } | 
|  | CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); | 
|  | CopyPlane(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, height); | 
|  | CopyPlane(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, height); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Copy I444. | 
|  | LIBYUV_API | 
|  | int I444Copy(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) { | 
|  | 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; | 
|  | src_y = src_y + (height - 1) * src_stride_y; | 
|  | src_u = src_u + (height - 1) * src_stride_u; | 
|  | src_v = src_v + (height - 1) * src_stride_v; | 
|  | src_stride_y = -src_stride_y; | 
|  | src_stride_u = -src_stride_u; | 
|  | src_stride_v = -src_stride_v; | 
|  | } | 
|  |  | 
|  | CopyPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); | 
|  | CopyPlane(src_u, src_stride_u, dst_u, dst_stride_u, width, height); | 
|  | CopyPlane(src_v, src_stride_v, dst_v, dst_stride_v, width, height); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Copy I400. | 
|  | LIBYUV_API | 
|  | int I400ToI400(const uint8* src_y, int src_stride_y, | 
|  | uint8* 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; | 
|  | } | 
|  |  | 
|  | // Convert I420 to I400. | 
|  | LIBYUV_API | 
|  | int I420ToI400(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, | 
|  | 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; | 
|  | } | 
|  |  | 
|  | // Mirror a plane of data. | 
|  | void MirrorPlane(const uint8* src_y, int src_stride_y, | 
|  | uint8* dst_y, int dst_stride_y, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*MirrorRow)(const uint8* src, uint8* dst, int width) = MirrorRow_C; | 
|  | // 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; | 
|  | } | 
|  | #if defined(HAS_MIRRORROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | MirrorRow = MirrorRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | MirrorRow = MirrorRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_MIRRORROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | MirrorRow = MirrorRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | MirrorRow = MirrorRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_MIRRORROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | MirrorRow = MirrorRow_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | MirrorRow = MirrorRow_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_MIRRORROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | MirrorRow = MirrorRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 32)) { | 
|  | MirrorRow = MirrorRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | // TODO(fbarchard): Mirror on mips handle unaligned memory. | 
|  | #if defined(HAS_MIRRORROW_MIPS_DSPR2) | 
|  | if (TestCpuFlag(kCpuHasMIPS_DSPR2) && | 
|  | IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) && | 
|  | IS_ALIGNED(dst_y, 4) && IS_ALIGNED(dst_stride_y, 4)) { | 
|  | MirrorRow = MirrorRow_MIPS_DSPR2; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | // Mirror plane | 
|  | for (y = 0; y < height; ++y) { | 
|  | MirrorRow(src_y, dst_y, width); | 
|  | src_y += src_stride_y; | 
|  | dst_y += dst_stride_y; | 
|  | } | 
|  | } | 
|  |  | 
|  | // Convert YUY2 to I422. | 
|  | LIBYUV_API | 
|  | int YUY2ToI422(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 (*YUY2ToUV422Row)(const uint8* src_yuy2, | 
|  | uint8* dst_u, uint8* dst_v, int pix) = | 
|  | YUY2ToUV422Row_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; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_yuy2 == width * 2 && | 
|  | dst_stride_y == width && | 
|  | dst_stride_u * 2 == width && | 
|  | dst_stride_v * 2 == width) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_yuy2 = dst_stride_y = dst_stride_u = dst_stride_v = 0; | 
|  | } | 
|  | #if defined(HAS_YUY2TOYROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | YUY2ToUV422Row = YUY2ToUV422Row_Any_SSE2; | 
|  | YUY2ToYRow = YUY2ToYRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | YUY2ToUV422Row = YUY2ToUV422Row_SSE2; | 
|  | YUY2ToYRow = YUY2ToYRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_YUY2TOYROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | YUY2ToUV422Row = YUY2ToUV422Row_Any_AVX2; | 
|  | YUY2ToYRow = YUY2ToYRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 32)) { | 
|  | YUY2ToUV422Row = YUY2ToUV422Row_AVX2; | 
|  | YUY2ToYRow = YUY2ToYRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_YUY2TOYROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | YUY2ToYRow = YUY2ToYRow_Any_NEON; | 
|  | if (width >= 16) { | 
|  | YUY2ToUV422Row = YUY2ToUV422Row_Any_NEON; | 
|  | } | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | YUY2ToYRow = YUY2ToYRow_NEON; | 
|  | YUY2ToUV422Row = YUY2ToUV422Row_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | YUY2ToUV422Row(src_yuy2, dst_u, dst_v, width); | 
|  | YUY2ToYRow(src_yuy2, dst_y, width); | 
|  | src_yuy2 += src_stride_yuy2; | 
|  | dst_y += dst_stride_y; | 
|  | dst_u += dst_stride_u; | 
|  | dst_v += dst_stride_v; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert UYVY to I422. | 
|  | LIBYUV_API | 
|  | int UYVYToI422(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 (*UYVYToUV422Row)(const uint8* src_uyvy, | 
|  | uint8* dst_u, uint8* dst_v, int pix) = | 
|  | UYVYToUV422Row_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; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_uyvy == width * 2 && | 
|  | dst_stride_y == width && | 
|  | dst_stride_u * 2 == width && | 
|  | dst_stride_v * 2 == width) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_uyvy = dst_stride_y = dst_stride_u = dst_stride_v = 0; | 
|  | } | 
|  | #if defined(HAS_UYVYTOYROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | UYVYToUV422Row = UYVYToUV422Row_Any_SSE2; | 
|  | UYVYToYRow = UYVYToYRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | UYVYToUV422Row = UYVYToUV422Row_SSE2; | 
|  | UYVYToYRow = UYVYToYRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_UYVYTOYROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | UYVYToUV422Row = UYVYToUV422Row_Any_AVX2; | 
|  | UYVYToYRow = UYVYToYRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 32)) { | 
|  | UYVYToUV422Row = UYVYToUV422Row_AVX2; | 
|  | UYVYToYRow = UYVYToYRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_UYVYTOYROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | UYVYToYRow = UYVYToYRow_Any_NEON; | 
|  | if (width >= 16) { | 
|  | UYVYToUV422Row = UYVYToUV422Row_Any_NEON; | 
|  | } | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | UYVYToYRow = UYVYToYRow_NEON; | 
|  | UYVYToUV422Row = UYVYToUV422Row_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | UYVYToUV422Row(src_uyvy, dst_u, dst_v, width); | 
|  | UYVYToYRow(src_uyvy, dst_y, width); | 
|  | src_uyvy += src_stride_uyvy; | 
|  | dst_y += dst_stride_y; | 
|  | dst_u += dst_stride_u; | 
|  | dst_v += dst_stride_v; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Mirror I400 with optional flipping | 
|  | LIBYUV_API | 
|  | int I400Mirror(const uint8* src_y, int src_stride_y, | 
|  | uint8* 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; | 
|  | } | 
|  |  | 
|  | MirrorPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Mirror I420 with optional flipping | 
|  | LIBYUV_API | 
|  | int I420Mirror(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) { | 
|  | MirrorPlane(src_y, src_stride_y, dst_y, dst_stride_y, width, height); | 
|  | } | 
|  | MirrorPlane(src_u, src_stride_u, dst_u, dst_stride_u, halfwidth, halfheight); | 
|  | MirrorPlane(src_v, src_stride_v, dst_v, dst_stride_v, halfwidth, halfheight); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // ARGB mirror. | 
|  | LIBYUV_API | 
|  | int ARGBMirror(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBMirrorRow)(const uint8* src, uint8* dst, int width) = | 
|  | ARGBMirrorRow_C; | 
|  | if (!src_argb || !dst_argb || 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_ARGBMIRRORROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | ARGBMirrorRow = ARGBMirrorRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBMirrorRow = ARGBMirrorRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBMIRRORROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBMirrorRow = ARGBMirrorRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBMirrorRow = ARGBMirrorRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBMIRRORROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | ARGBMirrorRow = ARGBMirrorRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBMirrorRow = ARGBMirrorRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | // Mirror plane | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBMirrorRow(src_argb, dst_argb, width); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Get a blender that optimized for the CPU and pixel count. | 
|  | // As there are 6 blenders to choose from, the caller should try to use | 
|  | // the same blend function for all pixels if possible. | 
|  | LIBYUV_API | 
|  | ARGBBlendRow GetARGBBlend() { | 
|  | void (*ARGBBlendRow)(const uint8* src_argb, const uint8* src_argb1, | 
|  | uint8* dst_argb, int width) = ARGBBlendRow_C; | 
|  | #if defined(HAS_ARGBBLENDROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | ARGBBlendRow = ARGBBlendRow_SSSE3; | 
|  | return ARGBBlendRow; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBBLENDROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBBlendRow = ARGBBlendRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBBLENDROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | ARGBBlendRow = ARGBBlendRow_NEON; | 
|  | } | 
|  | #endif | 
|  | return ARGBBlendRow; | 
|  | } | 
|  |  | 
|  | // Alpha Blend 2 ARGB images and store to destination. | 
|  | LIBYUV_API | 
|  | int ARGBBlend(const uint8* src_argb0, int src_stride_argb0, | 
|  | const uint8* src_argb1, int src_stride_argb1, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBBlendRow)(const uint8* src_argb, const uint8* src_argb1, | 
|  | uint8* dst_argb, int width) = GetARGBBlend(); | 
|  | if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // Negative height means invert the image. | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_argb = dst_argb + (height - 1) * dst_stride_argb; | 
|  | dst_stride_argb = -dst_stride_argb; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_argb0 == width * 4 && | 
|  | src_stride_argb1 == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb0 = src_stride_argb1 = dst_stride_argb = 0; | 
|  | } | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBBlendRow(src_argb0, src_argb1, dst_argb, width); | 
|  | src_argb0 += src_stride_argb0; | 
|  | src_argb1 += src_stride_argb1; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Multiply 2 ARGB images and store to destination. | 
|  | LIBYUV_API | 
|  | int ARGBMultiply(const uint8* src_argb0, int src_stride_argb0, | 
|  | const uint8* src_argb1, int src_stride_argb1, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBMultiplyRow)(const uint8* src0, const uint8* src1, uint8* dst, | 
|  | int width) = ARGBMultiplyRow_C; | 
|  | if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // Negative height means invert the image. | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_argb = dst_argb + (height - 1) * dst_stride_argb; | 
|  | dst_stride_argb = -dst_stride_argb; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_argb0 == width * 4 && | 
|  | src_stride_argb1 == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb0 = src_stride_argb1 = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBMULTIPLYROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBMultiplyRow = ARGBMultiplyRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBMultiplyRow = ARGBMultiplyRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBMULTIPLYROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | ARGBMultiplyRow = ARGBMultiplyRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBMultiplyRow = ARGBMultiplyRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBMULTIPLYROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | ARGBMultiplyRow = ARGBMultiplyRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBMultiplyRow = ARGBMultiplyRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | // Multiply plane | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBMultiplyRow(src_argb0, src_argb1, dst_argb, width); | 
|  | src_argb0 += src_stride_argb0; | 
|  | src_argb1 += src_stride_argb1; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Add 2 ARGB images and store to destination. | 
|  | LIBYUV_API | 
|  | int ARGBAdd(const uint8* src_argb0, int src_stride_argb0, | 
|  | const uint8* src_argb1, int src_stride_argb1, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBAddRow)(const uint8* src0, const uint8* src1, uint8* dst, | 
|  | int width) = ARGBAddRow_C; | 
|  | if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // Negative height means invert the image. | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_argb = dst_argb + (height - 1) * dst_stride_argb; | 
|  | dst_stride_argb = -dst_stride_argb; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_argb0 == width * 4 && | 
|  | src_stride_argb1 == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb0 = src_stride_argb1 = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBADDROW_SSE2) && (defined(_MSC_VER) && !defined(__clang__)) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBAddRow = ARGBAddRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBADDROW_SSE2) && !(defined(_MSC_VER) && !defined(__clang__)) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBAddRow = ARGBAddRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBAddRow = ARGBAddRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBADDROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | ARGBAddRow = ARGBAddRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBAddRow = ARGBAddRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBADDROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | ARGBAddRow = ARGBAddRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBAddRow = ARGBAddRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | // Add plane | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBAddRow(src_argb0, src_argb1, dst_argb, width); | 
|  | src_argb0 += src_stride_argb0; | 
|  | src_argb1 += src_stride_argb1; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Subtract 2 ARGB images and store to destination. | 
|  | LIBYUV_API | 
|  | int ARGBSubtract(const uint8* src_argb0, int src_stride_argb0, | 
|  | const uint8* src_argb1, int src_stride_argb1, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBSubtractRow)(const uint8* src0, const uint8* src1, uint8* dst, | 
|  | int width) = ARGBSubtractRow_C; | 
|  | if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // Negative height means invert the image. | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_argb = dst_argb + (height - 1) * dst_stride_argb; | 
|  | dst_stride_argb = -dst_stride_argb; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_argb0 == width * 4 && | 
|  | src_stride_argb1 == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb0 = src_stride_argb1 = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBSUBTRACTROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBSubtractRow = ARGBSubtractRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBSubtractRow = ARGBSubtractRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBSUBTRACTROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | ARGBSubtractRow = ARGBSubtractRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBSubtractRow = ARGBSubtractRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBSUBTRACTROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | ARGBSubtractRow = ARGBSubtractRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBSubtractRow = ARGBSubtractRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | // Subtract plane | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBSubtractRow(src_argb0, src_argb1, dst_argb, width); | 
|  | src_argb0 += src_stride_argb0; | 
|  | src_argb1 += src_stride_argb1; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert I422 to BGRA. | 
|  | LIBYUV_API | 
|  | int I422ToBGRA(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_bgra, int dst_stride_bgra, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*I422ToBGRARow)(const uint8* y_buf, | 
|  | const uint8* u_buf, | 
|  | const uint8* v_buf, | 
|  | uint8* rgb_buf, | 
|  | int width) = I422ToBGRARow_C; | 
|  | if (!src_y || !src_u || !src_v || | 
|  | !dst_bgra || | 
|  | width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // Negative height means invert the image. | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_bgra = dst_bgra + (height - 1) * dst_stride_bgra; | 
|  | dst_stride_bgra = -dst_stride_bgra; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_y == width && | 
|  | src_stride_u * 2 == width && | 
|  | src_stride_v * 2 == width && | 
|  | dst_stride_bgra == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_y = src_stride_u = src_stride_v = dst_stride_bgra = 0; | 
|  | } | 
|  | #if defined(HAS_I422TOBGRAROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | I422ToBGRARow = I422ToBGRARow_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | I422ToBGRARow = I422ToBGRARow_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_I422TOBGRAROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | I422ToBGRARow = I422ToBGRARow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | I422ToBGRARow = I422ToBGRARow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_I422TOBGRAROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | I422ToBGRARow = I422ToBGRARow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | I422ToBGRARow = I422ToBGRARow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_I422TOBGRAROW_MIPS_DSPR2) | 
|  | if (TestCpuFlag(kCpuHasMIPS_DSPR2) && IS_ALIGNED(width, 4) && | 
|  | IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) && | 
|  | IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) && | 
|  | IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) && | 
|  | IS_ALIGNED(dst_bgra, 4) && IS_ALIGNED(dst_stride_bgra, 4)) { | 
|  | I422ToBGRARow = I422ToBGRARow_MIPS_DSPR2; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | I422ToBGRARow(src_y, src_u, src_v, dst_bgra, width); | 
|  | dst_bgra += dst_stride_bgra; | 
|  | src_y += src_stride_y; | 
|  | src_u += src_stride_u; | 
|  | src_v += src_stride_v; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert I422 to ABGR. | 
|  | LIBYUV_API | 
|  | int I422ToABGR(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_abgr, int dst_stride_abgr, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*I422ToABGRRow)(const uint8* y_buf, | 
|  | const uint8* u_buf, | 
|  | const uint8* v_buf, | 
|  | uint8* rgb_buf, | 
|  | int width) = I422ToABGRRow_C; | 
|  | if (!src_y || !src_u || !src_v || | 
|  | !dst_abgr || | 
|  | width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // Negative height means invert the image. | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_abgr = dst_abgr + (height - 1) * dst_stride_abgr; | 
|  | dst_stride_abgr = -dst_stride_abgr; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_y == width && | 
|  | src_stride_u * 2 == width && | 
|  | src_stride_v * 2 == width && | 
|  | dst_stride_abgr == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_y = src_stride_u = src_stride_v = dst_stride_abgr = 0; | 
|  | } | 
|  | #if defined(HAS_I422TOABGRROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && width >= 8) { | 
|  | I422ToABGRRow = I422ToABGRRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | I422ToABGRRow = I422ToABGRRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_I422TOABGRROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | I422ToABGRRow = I422ToABGRRow_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | I422ToABGRRow = I422ToABGRRow_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_I422TOABGRROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | I422ToABGRRow = I422ToABGRRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | I422ToABGRRow = I422ToABGRRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | I422ToABGRRow(src_y, src_u, src_v, dst_abgr, width); | 
|  | dst_abgr += dst_stride_abgr; | 
|  | src_y += src_stride_y; | 
|  | src_u += src_stride_u; | 
|  | src_v += src_stride_v; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert I422 to RGBA. | 
|  | LIBYUV_API | 
|  | int I422ToRGBA(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_rgba, int dst_stride_rgba, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*I422ToRGBARow)(const uint8* y_buf, | 
|  | const uint8* u_buf, | 
|  | const uint8* v_buf, | 
|  | uint8* rgb_buf, | 
|  | 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; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_y == width && | 
|  | src_stride_u * 2 == width && | 
|  | src_stride_v * 2 == width && | 
|  | dst_stride_rgba == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_y = src_stride_u = src_stride_v = dst_stride_rgba = 0; | 
|  | } | 
|  | #if defined(HAS_I422TORGBAROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && width >= 8) { | 
|  | I422ToRGBARow = I422ToRGBARow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | I422ToRGBARow = I422ToRGBARow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #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 | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | I422ToRGBARow(src_y, src_u, src_v, dst_rgba, width); | 
|  | dst_rgba += dst_stride_rgba; | 
|  | src_y += src_stride_y; | 
|  | src_u += src_stride_u; | 
|  | src_v += src_stride_v; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert NV12 to RGB565. | 
|  | LIBYUV_API | 
|  | int NV12ToRGB565(const uint8* src_y, int src_stride_y, | 
|  | const uint8* src_uv, int src_stride_uv, | 
|  | uint8* dst_rgb565, int dst_stride_rgb565, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*NV12ToRGB565Row)(const uint8* y_buf, | 
|  | const uint8* uv_buf, | 
|  | uint8* rgb_buf, | 
|  | int width) = NV12ToRGB565Row_C; | 
|  | if (!src_y || !src_uv || !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_NV12TORGB565ROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | NV12ToRGB565Row = NV12ToRGB565Row_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | NV12ToRGB565Row = NV12ToRGB565Row_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_NV12TORGB565ROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | NV12ToRGB565Row = NV12ToRGB565Row_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | NV12ToRGB565Row = NV12ToRGB565Row_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_NV12TORGB565ROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | NV12ToRGB565Row = NV12ToRGB565Row_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | NV12ToRGB565Row = NV12ToRGB565Row_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | NV12ToRGB565Row(src_y, src_uv, dst_rgb565, width); | 
|  | dst_rgb565 += dst_stride_rgb565; | 
|  | src_y += src_stride_y; | 
|  | if (y & 1) { | 
|  | src_uv += src_stride_uv; | 
|  | } | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert NV21 to RGB565. | 
|  | LIBYUV_API | 
|  | int NV21ToRGB565(const uint8* src_y, int src_stride_y, | 
|  | const uint8* src_vu, int src_stride_vu, | 
|  | uint8* dst_rgb565, int dst_stride_rgb565, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*NV21ToRGB565Row)(const uint8* y_buf, | 
|  | const uint8* src_vu, | 
|  | uint8* rgb_buf, | 
|  | int width) = NV21ToRGB565Row_C; | 
|  | if (!src_y || !src_vu || !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_NV21TORGB565ROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | NV21ToRGB565Row = NV21ToRGB565Row_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | NV21ToRGB565Row = NV21ToRGB565Row_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_NV21TORGB565ROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | NV21ToRGB565Row = NV21ToRGB565Row_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | NV21ToRGB565Row = NV21ToRGB565Row_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_NV21TORGB565ROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | NV21ToRGB565Row = NV21ToRGB565Row_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | NV21ToRGB565Row = NV21ToRGB565Row_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | NV21ToRGB565Row(src_y, src_vu, dst_rgb565, width); | 
|  | dst_rgb565 += dst_stride_rgb565; | 
|  | src_y += src_stride_y; | 
|  | if (y & 1) { | 
|  | src_vu += src_stride_vu; | 
|  | } | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | LIBYUV_API | 
|  | void SetPlane(uint8* dst_y, int dst_stride_y, | 
|  | int width, int height, | 
|  | uint32 value) { | 
|  | int y; | 
|  | void (*SetRow)(uint8* dst, uint8 value, int pix) = SetRow_C; | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_y = dst_y + (height - 1) * dst_stride_y; | 
|  | dst_stride_y = -dst_stride_y; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (dst_stride_y == width) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | dst_stride_y = 0; | 
|  | } | 
|  | #if defined(HAS_SETROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | SetRow = SetRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SetRow = SetRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SETROW_X86) | 
|  | if (TestCpuFlag(kCpuHasX86)) { | 
|  | SetRow = SetRow_Any_X86; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | SetRow = SetRow_X86; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SETROW_ERMS) | 
|  | if (TestCpuFlag(kCpuHasERMS)) { | 
|  | SetRow = SetRow_ERMS; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | // Set plane | 
|  | for (y = 0; y < height; ++y) { | 
|  | SetRow(dst_y, value, width); | 
|  | dst_y += dst_stride_y; | 
|  | } | 
|  | } | 
|  |  | 
|  | // Draw a rectangle into I420 | 
|  | LIBYUV_API | 
|  | int I420Rect(uint8* dst_y, int dst_stride_y, | 
|  | uint8* dst_u, int dst_stride_u, | 
|  | uint8* dst_v, int dst_stride_v, | 
|  | int x, int y, | 
|  | int width, int height, | 
|  | int value_y, int value_u, int value_v) { | 
|  | int halfwidth = (width + 1) >> 1; | 
|  | int halfheight = (height + 1) >> 1; | 
|  | uint8* start_y = dst_y + y * dst_stride_y + x; | 
|  | uint8* start_u = dst_u + (y / 2) * dst_stride_u + (x / 2); | 
|  | uint8* start_v = dst_v + (y / 2) * dst_stride_v + (x / 2); | 
|  | if (!dst_y || !dst_u || !dst_v || | 
|  | width <= 0 || height == 0 || | 
|  | x < 0 || y < 0 || | 
|  | value_y < 0 || value_y > 255 || | 
|  | value_u < 0 || value_u > 255 || | 
|  | value_v < 0 || value_v > 255) { | 
|  | return -1; | 
|  | } | 
|  |  | 
|  | SetPlane(start_y, dst_stride_y, width, height, value_y); | 
|  | SetPlane(start_u, dst_stride_u, halfwidth, halfheight, value_u); | 
|  | SetPlane(start_v, dst_stride_v, halfwidth, halfheight, value_v); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Draw a rectangle into ARGB | 
|  | LIBYUV_API | 
|  | int ARGBRect(uint8* dst_argb, int dst_stride_argb, | 
|  | int dst_x, int dst_y, | 
|  | int width, int height, | 
|  | uint32 value) { | 
|  | int y; | 
|  | void (*ARGBSetRow)(uint8* dst_argb, uint32 value, int pix) = ARGBSetRow_C; | 
|  | if (!dst_argb || | 
|  | width <= 0 || height == 0 || | 
|  | dst_x < 0 || dst_y < 0) { | 
|  | return -1; | 
|  | } | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_argb = dst_argb + (height - 1) * dst_stride_argb; | 
|  | dst_stride_argb = -dst_stride_argb; | 
|  | } | 
|  | dst_argb += dst_y * dst_stride_argb + dst_x * 4; | 
|  | // Coalesce rows. | 
|  | if (dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | dst_stride_argb = 0; | 
|  | } | 
|  |  | 
|  | #if defined(HAS_ARGBSETROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | ARGBSetRow = ARGBSetRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBSetRow = ARGBSetRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBSETROW_X86) | 
|  | if (TestCpuFlag(kCpuHasX86)) { | 
|  | ARGBSetRow = ARGBSetRow_X86; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | // Set plane | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBSetRow(dst_argb, value, width); | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert unattentuated ARGB to preattenuated ARGB. | 
|  | // An unattenutated ARGB alpha blend uses the formula | 
|  | // p = a * f + (1 - a) * b | 
|  | // where | 
|  | //   p is output pixel | 
|  | //   f is foreground pixel | 
|  | //   b is background pixel | 
|  | //   a is alpha value from foreground pixel | 
|  | // An preattenutated ARGB alpha blend uses the formula | 
|  | // p = f + (1 - a) * b | 
|  | // where | 
|  | //   f is foreground pixel premultiplied by alpha | 
|  |  | 
|  | LIBYUV_API | 
|  | int ARGBAttenuate(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBAttenuateRow)(const uint8* src_argb, uint8* dst_argb, | 
|  | int width) = ARGBAttenuateRow_C; | 
|  | if (!src_argb || !dst_argb || 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_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBATTENUATEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBAttenuateRow = ARGBAttenuateRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBAttenuateRow = ARGBAttenuateRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBATTENUATEROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | ARGBAttenuateRow = ARGBAttenuateRow_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBAttenuateRow = ARGBAttenuateRow_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBATTENUATEROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | ARGBAttenuateRow = ARGBAttenuateRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBAttenuateRow = ARGBAttenuateRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBATTENUATEROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | ARGBAttenuateRow = ARGBAttenuateRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBAttenuateRow = ARGBAttenuateRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBAttenuateRow(src_argb, dst_argb, width); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert preattentuated ARGB to unattenuated ARGB. | 
|  | LIBYUV_API | 
|  | int ARGBUnattenuate(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBUnattenuateRow)(const uint8* src_argb, uint8* dst_argb, | 
|  | int width) = ARGBUnattenuateRow_C; | 
|  | if (!src_argb || !dst_argb || 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_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBUNATTENUATEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBUnattenuateRow = ARGBUnattenuateRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBUnattenuateRow = ARGBUnattenuateRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBUNATTENUATEROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | ARGBUnattenuateRow = ARGBUnattenuateRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBUnattenuateRow = ARGBUnattenuateRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | // TODO(fbarchard): Neon version. | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBUnattenuateRow(src_argb, dst_argb, width); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Convert ARGB to Grayed ARGB. | 
|  | LIBYUV_API | 
|  | int ARGBGrayTo(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBGrayRow)(const uint8* src_argb, uint8* dst_argb, | 
|  | int width) = ARGBGrayRow_C; | 
|  | if (!src_argb || !dst_argb || 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_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBGRAYROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3) && IS_ALIGNED(width, 8)) { | 
|  | ARGBGrayRow = ARGBGrayRow_SSSE3; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBGRAYROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) { | 
|  | ARGBGrayRow = ARGBGrayRow_NEON; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBGrayRow(src_argb, dst_argb, width); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Make a rectangle of ARGB gray scale. | 
|  | LIBYUV_API | 
|  | int ARGBGray(uint8* dst_argb, int dst_stride_argb, | 
|  | int dst_x, int dst_y, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBGrayRow)(const uint8* src_argb, uint8* dst_argb, | 
|  | int width) = ARGBGrayRow_C; | 
|  | uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4; | 
|  | if (!dst_argb || width <= 0 || height <= 0 || dst_x < 0 || dst_y < 0) { | 
|  | return -1; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBGRAYROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3) && IS_ALIGNED(width, 8)) { | 
|  | ARGBGrayRow = ARGBGrayRow_SSSE3; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBGRAYROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) { | 
|  | ARGBGrayRow = ARGBGrayRow_NEON; | 
|  | } | 
|  | #endif | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBGrayRow(dst, dst, width); | 
|  | dst += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Make a rectangle of ARGB Sepia tone. | 
|  | LIBYUV_API | 
|  | int ARGBSepia(uint8* dst_argb, int dst_stride_argb, | 
|  | int dst_x, int dst_y, int width, int height) { | 
|  | int y; | 
|  | void (*ARGBSepiaRow)(uint8* dst_argb, int width) = ARGBSepiaRow_C; | 
|  | uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4; | 
|  | if (!dst_argb || width <= 0 || height <= 0 || dst_x < 0 || dst_y < 0) { | 
|  | return -1; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBSEPIAROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3) && IS_ALIGNED(width, 8)) { | 
|  | ARGBSepiaRow = ARGBSepiaRow_SSSE3; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBSEPIAROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) { | 
|  | ARGBSepiaRow = ARGBSepiaRow_NEON; | 
|  | } | 
|  | #endif | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBSepiaRow(dst, width); | 
|  | dst += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Apply a 4x4 matrix to each ARGB pixel. | 
|  | // Note: Normally for shading, but can be used to swizzle or invert. | 
|  | LIBYUV_API | 
|  | int ARGBColorMatrix(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | const int8* matrix_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBColorMatrixRow)(const uint8* src_argb, uint8* dst_argb, | 
|  | const int8* matrix_argb, int width) = ARGBColorMatrixRow_C; | 
|  | if (!src_argb || !dst_argb || !matrix_argb || 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_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBCOLORMATRIXROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3) && IS_ALIGNED(width, 8)) { | 
|  | ARGBColorMatrixRow = ARGBColorMatrixRow_SSSE3; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBCOLORMATRIXROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) { | 
|  | ARGBColorMatrixRow = ARGBColorMatrixRow_NEON; | 
|  | } | 
|  | #endif | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBColorMatrixRow(src_argb, dst_argb, matrix_argb, width); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Apply a 4x3 matrix to each ARGB pixel. | 
|  | // Deprecated. | 
|  | LIBYUV_API | 
|  | int RGBColorMatrix(uint8* dst_argb, int dst_stride_argb, | 
|  | const int8* matrix_rgb, | 
|  | int dst_x, int dst_y, int width, int height) { | 
|  | SIMD_ALIGNED(int8 matrix_argb[16]); | 
|  | uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4; | 
|  | if (!dst_argb || !matrix_rgb || width <= 0 || height <= 0 || | 
|  | dst_x < 0 || dst_y < 0) { | 
|  | return -1; | 
|  | } | 
|  |  | 
|  | // Convert 4x3 7 bit matrix to 4x4 6 bit matrix. | 
|  | matrix_argb[0] = matrix_rgb[0] / 2; | 
|  | matrix_argb[1] = matrix_rgb[1] / 2; | 
|  | matrix_argb[2] = matrix_rgb[2] / 2; | 
|  | matrix_argb[3] = matrix_rgb[3] / 2; | 
|  | matrix_argb[4] = matrix_rgb[4] / 2; | 
|  | matrix_argb[5] = matrix_rgb[5] / 2; | 
|  | matrix_argb[6] = matrix_rgb[6] / 2; | 
|  | matrix_argb[7] = matrix_rgb[7] / 2; | 
|  | matrix_argb[8] = matrix_rgb[8] / 2; | 
|  | matrix_argb[9] = matrix_rgb[9] / 2; | 
|  | matrix_argb[10] = matrix_rgb[10] / 2; | 
|  | matrix_argb[11] = matrix_rgb[11] / 2; | 
|  | matrix_argb[14] = matrix_argb[13] = matrix_argb[12] = 0; | 
|  | matrix_argb[15] = 64;  // 1.0 | 
|  |  | 
|  | return ARGBColorMatrix((const uint8*)(dst), dst_stride_argb, | 
|  | dst, dst_stride_argb, | 
|  | &matrix_argb[0], width, height); | 
|  | } | 
|  |  | 
|  | // Apply a color table each ARGB pixel. | 
|  | // Table contains 256 ARGB values. | 
|  | LIBYUV_API | 
|  | int ARGBColorTable(uint8* dst_argb, int dst_stride_argb, | 
|  | const uint8* table_argb, | 
|  | int dst_x, int dst_y, int width, int height) { | 
|  | int y; | 
|  | void (*ARGBColorTableRow)(uint8* dst_argb, const uint8* table_argb, | 
|  | int width) = ARGBColorTableRow_C; | 
|  | uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4; | 
|  | if (!dst_argb || !table_argb || width <= 0 || height <= 0 || | 
|  | dst_x < 0 || dst_y < 0) { | 
|  | return -1; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBCOLORTABLEROW_X86) | 
|  | if (TestCpuFlag(kCpuHasX86)) { | 
|  | ARGBColorTableRow = ARGBColorTableRow_X86; | 
|  | } | 
|  | #endif | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBColorTableRow(dst, table_argb, width); | 
|  | dst += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Apply a color table each ARGB pixel but preserve destination alpha. | 
|  | // Table contains 256 ARGB values. | 
|  | LIBYUV_API | 
|  | int RGBColorTable(uint8* dst_argb, int dst_stride_argb, | 
|  | const uint8* table_argb, | 
|  | int dst_x, int dst_y, int width, int height) { | 
|  | int y; | 
|  | void (*RGBColorTableRow)(uint8* dst_argb, const uint8* table_argb, | 
|  | int width) = RGBColorTableRow_C; | 
|  | uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4; | 
|  | if (!dst_argb || !table_argb || width <= 0 || height <= 0 || | 
|  | dst_x < 0 || dst_y < 0) { | 
|  | return -1; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_RGBCOLORTABLEROW_X86) | 
|  | if (TestCpuFlag(kCpuHasX86)) { | 
|  | RGBColorTableRow = RGBColorTableRow_X86; | 
|  | } | 
|  | #endif | 
|  | for (y = 0; y < height; ++y) { | 
|  | RGBColorTableRow(dst, table_argb, width); | 
|  | dst += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // ARGBQuantize is used to posterize art. | 
|  | // e.g. rgb / qvalue * qvalue + qvalue / 2 | 
|  | // But the low levels implement efficiently with 3 parameters, and could be | 
|  | // used for other high level operations. | 
|  | // dst_argb[0] = (b * scale >> 16) * interval_size + interval_offset; | 
|  | // where scale is 1 / interval_size as a fixed point value. | 
|  | // The divide is replaces with a multiply by reciprocal fixed point multiply. | 
|  | // Caveat - although SSE2 saturates, the C function does not and should be used | 
|  | // with care if doing anything but quantization. | 
|  | LIBYUV_API | 
|  | int ARGBQuantize(uint8* dst_argb, int dst_stride_argb, | 
|  | int scale, int interval_size, int interval_offset, | 
|  | int dst_x, int dst_y, int width, int height) { | 
|  | int y; | 
|  | void (*ARGBQuantizeRow)(uint8* dst_argb, int scale, int interval_size, | 
|  | int interval_offset, int width) = ARGBQuantizeRow_C; | 
|  | uint8* dst = dst_argb + dst_y * dst_stride_argb + dst_x * 4; | 
|  | if (!dst_argb || width <= 0 || height <= 0 || dst_x < 0 || dst_y < 0 || | 
|  | interval_size < 1 || interval_size > 255) { | 
|  | return -1; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBQUANTIZEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 4)) { | 
|  | ARGBQuantizeRow = ARGBQuantizeRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBQUANTIZEROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) { | 
|  | ARGBQuantizeRow = ARGBQuantizeRow_NEON; | 
|  | } | 
|  | #endif | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBQuantizeRow(dst, scale, interval_size, interval_offset, width); | 
|  | dst += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Computes table of cumulative sum for image where the value is the sum | 
|  | // of all values above and to the left of the entry. Used by ARGBBlur. | 
|  | LIBYUV_API | 
|  | int ARGBComputeCumulativeSum(const uint8* src_argb, int src_stride_argb, | 
|  | int32* dst_cumsum, int dst_stride32_cumsum, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ComputeCumulativeSumRow)(const uint8* row, int32* cumsum, | 
|  | const int32* previous_cumsum, int width) = ComputeCumulativeSumRow_C; | 
|  | int32* previous_cumsum = dst_cumsum; | 
|  | if (!dst_cumsum || !src_argb || width <= 0 || height <= 0) { | 
|  | return -1; | 
|  | } | 
|  | #if defined(HAS_CUMULATIVESUMTOAVERAGEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ComputeCumulativeSumRow = ComputeCumulativeSumRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | memset(dst_cumsum, 0, width * sizeof(dst_cumsum[0]) * 4);  // 4 int per pixel. | 
|  | for (y = 0; y < height; ++y) { | 
|  | ComputeCumulativeSumRow(src_argb, dst_cumsum, previous_cumsum, width); | 
|  | previous_cumsum = dst_cumsum; | 
|  | dst_cumsum += dst_stride32_cumsum; | 
|  | src_argb += src_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Blur ARGB image. | 
|  | // Caller should allocate CumulativeSum table of width * height * 16 bytes | 
|  | // aligned to 16 byte boundary. height can be radius * 2 + 2 to save memory | 
|  | // as the buffer is treated as circular. | 
|  | LIBYUV_API | 
|  | int ARGBBlur(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int32* dst_cumsum, int dst_stride32_cumsum, | 
|  | int width, int height, int radius) { | 
|  | int y; | 
|  | void (*ComputeCumulativeSumRow)(const uint8 *row, int32 *cumsum, | 
|  | const int32* previous_cumsum, int width) = ComputeCumulativeSumRow_C; | 
|  | void (*CumulativeSumToAverageRow)(const int32* topleft, const int32* botleft, | 
|  | int width, int area, uint8* dst, int count) = CumulativeSumToAverageRow_C; | 
|  | int32* cumsum_bot_row; | 
|  | int32* max_cumsum_bot_row; | 
|  | int32* cumsum_top_row; | 
|  |  | 
|  | if (!src_argb || !dst_argb || 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 (radius > height) { | 
|  | radius = height; | 
|  | } | 
|  | if (radius > (width / 2 - 1)) { | 
|  | radius = width / 2 - 1; | 
|  | } | 
|  | if (radius <= 0) { | 
|  | return -1; | 
|  | } | 
|  | #if defined(HAS_CUMULATIVESUMTOAVERAGEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ComputeCumulativeSumRow = ComputeCumulativeSumRow_SSE2; | 
|  | CumulativeSumToAverageRow = CumulativeSumToAverageRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | // Compute enough CumulativeSum for first row to be blurred. After this | 
|  | // one row of CumulativeSum is updated at a time. | 
|  | ARGBComputeCumulativeSum(src_argb, src_stride_argb, | 
|  | dst_cumsum, dst_stride32_cumsum, | 
|  | width, radius); | 
|  |  | 
|  | src_argb = src_argb + radius * src_stride_argb; | 
|  | cumsum_bot_row = &dst_cumsum[(radius - 1) * dst_stride32_cumsum]; | 
|  |  | 
|  | max_cumsum_bot_row = &dst_cumsum[(radius * 2 + 2) * dst_stride32_cumsum]; | 
|  | cumsum_top_row = &dst_cumsum[0]; | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | int top_y = ((y - radius - 1) >= 0) ? (y - radius - 1) : 0; | 
|  | int bot_y = ((y + radius) < height) ? (y + radius) : (height - 1); | 
|  | int area = radius * (bot_y - top_y); | 
|  | int boxwidth = radius * 4; | 
|  | int x; | 
|  | int n; | 
|  |  | 
|  | // Increment cumsum_top_row pointer with circular buffer wrap around. | 
|  | if (top_y) { | 
|  | cumsum_top_row += dst_stride32_cumsum; | 
|  | if (cumsum_top_row >= max_cumsum_bot_row) { | 
|  | cumsum_top_row = dst_cumsum; | 
|  | } | 
|  | } | 
|  | // Increment cumsum_bot_row pointer with circular buffer wrap around and | 
|  | // then fill in a row of CumulativeSum. | 
|  | if ((y + radius) < height) { | 
|  | const int32* prev_cumsum_bot_row = cumsum_bot_row; | 
|  | cumsum_bot_row += dst_stride32_cumsum; | 
|  | if (cumsum_bot_row >= max_cumsum_bot_row) { | 
|  | cumsum_bot_row = dst_cumsum; | 
|  | } | 
|  | ComputeCumulativeSumRow(src_argb, cumsum_bot_row, prev_cumsum_bot_row, | 
|  | width); | 
|  | src_argb += src_stride_argb; | 
|  | } | 
|  |  | 
|  | // Left clipped. | 
|  | for (x = 0; x < radius + 1; ++x) { | 
|  | CumulativeSumToAverageRow(cumsum_top_row, cumsum_bot_row, | 
|  | boxwidth, area, &dst_argb[x * 4], 1); | 
|  | area += (bot_y - top_y); | 
|  | boxwidth += 4; | 
|  | } | 
|  |  | 
|  | // Middle unclipped. | 
|  | n = (width - 1) - radius - x + 1; | 
|  | CumulativeSumToAverageRow(cumsum_top_row, cumsum_bot_row, | 
|  | boxwidth, area, &dst_argb[x * 4], n); | 
|  |  | 
|  | // Right clipped. | 
|  | for (x += n; x <= width - 1; ++x) { | 
|  | area -= (bot_y - top_y); | 
|  | boxwidth -= 4; | 
|  | CumulativeSumToAverageRow(cumsum_top_row + (x - radius - 1) * 4, | 
|  | cumsum_bot_row + (x - radius - 1) * 4, | 
|  | boxwidth, area, &dst_argb[x * 4], 1); | 
|  | } | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Multiply ARGB image by a specified ARGB value. | 
|  | LIBYUV_API | 
|  | int ARGBShade(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height, uint32 value) { | 
|  | int y; | 
|  | void (*ARGBShadeRow)(const uint8* src_argb, uint8* dst_argb, | 
|  | int width, uint32 value) = ARGBShadeRow_C; | 
|  | if (!src_argb || !dst_argb || width <= 0 || height == 0 || value == 0u) { | 
|  | 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_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBSHADEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 4)) { | 
|  | ARGBShadeRow = ARGBShadeRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBSHADEROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) { | 
|  | ARGBShadeRow = ARGBShadeRow_NEON; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBShadeRow(src_argb, dst_argb, width, value); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Interpolate 2 ARGB images by specified amount (0 to 255). | 
|  | LIBYUV_API | 
|  | int ARGBInterpolate(const uint8* src_argb0, int src_stride_argb0, | 
|  | const uint8* src_argb1, int src_stride_argb1, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height, int interpolation) { | 
|  | int y; | 
|  | void (*InterpolateRow)(uint8* dst_ptr, const uint8* src_ptr, | 
|  | ptrdiff_t src_stride, int dst_width, | 
|  | int source_y_fraction) = InterpolateRow_C; | 
|  | if (!src_argb0 || !src_argb1 || !dst_argb || width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // Negative height means invert the image. | 
|  | if (height < 0) { | 
|  | height = -height; | 
|  | dst_argb = dst_argb + (height - 1) * dst_stride_argb; | 
|  | dst_stride_argb = -dst_stride_argb; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_argb0 == width * 4 && | 
|  | src_stride_argb1 == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb0 = src_stride_argb1 = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_INTERPOLATEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | InterpolateRow = InterpolateRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | InterpolateRow = InterpolateRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | InterpolateRow = InterpolateRow_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | InterpolateRow = InterpolateRow_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | InterpolateRow = InterpolateRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | InterpolateRow = InterpolateRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | InterpolateRow = InterpolateRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | InterpolateRow = InterpolateRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_MIPS_DSPR2) | 
|  | if (TestCpuFlag(kCpuHasMIPS_DSPR2) && | 
|  | IS_ALIGNED(src_argb0, 4) && IS_ALIGNED(src_stride_argb0, 4) && | 
|  | IS_ALIGNED(src_argb1, 4) && IS_ALIGNED(src_stride_argb1, 4) && | 
|  | IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) { | 
|  | InterpolateRow = InterpolateRow_MIPS_DSPR2; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | InterpolateRow(dst_argb, src_argb0, src_argb1 - src_argb0, | 
|  | width * 4, interpolation); | 
|  | src_argb0 += src_stride_argb0; | 
|  | src_argb1 += src_stride_argb1; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Shuffle ARGB channel order.  e.g. BGRA to ARGB. | 
|  | LIBYUV_API | 
|  | int ARGBShuffle(const uint8* src_bgra, int src_stride_bgra, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | const uint8* shuffler, int width, int height) { | 
|  | int y; | 
|  | void (*ARGBShuffleRow)(const uint8* src_bgra, uint8* dst_argb, | 
|  | const uint8* shuffler, int pix) = ARGBShuffleRow_C; | 
|  | if (!src_bgra || !dst_argb || | 
|  | 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; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_bgra == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_bgra = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBSHUFFLEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | ARGBShuffleRow = ARGBShuffleRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBShuffleRow = ARGBShuffleRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBSHUFFLEROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | ARGBShuffleRow = ARGBShuffleRow_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | ARGBShuffleRow = ARGBShuffleRow_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBSHUFFLEROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | ARGBShuffleRow = ARGBShuffleRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | ARGBShuffleRow = ARGBShuffleRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBSHUFFLEROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | ARGBShuffleRow = ARGBShuffleRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 4)) { | 
|  | ARGBShuffleRow = ARGBShuffleRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBShuffleRow(src_bgra, dst_argb, shuffler, width); | 
|  | src_bgra += src_stride_bgra; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Sobel ARGB effect. | 
|  | static int ARGBSobelize(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height, | 
|  | void (*SobelRow)(const uint8* src_sobelx, | 
|  | const uint8* src_sobely, | 
|  | uint8* dst, int width)) { | 
|  | int y; | 
|  | void (*ARGBToYJRow)(const uint8* src_argb, uint8* dst_g, int pix) = | 
|  | ARGBToYJRow_C; | 
|  | void (*SobelYRow)(const uint8* src_y0, const uint8* src_y1, | 
|  | uint8* dst_sobely, int width) = SobelYRow_C; | 
|  | void (*SobelXRow)(const uint8* src_y0, const uint8* src_y1, | 
|  | const uint8* src_y2, uint8* dst_sobely, int width) = | 
|  | SobelXRow_C; | 
|  | const int kEdge = 16;  // Extra pixels at start of row for extrude/align. | 
|  | if (!src_argb  || !dst_argb || 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) | 
|  | 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 | 
|  |  | 
|  | #if defined(HAS_SOBELYROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | SobelYRow = SobelYRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SOBELYROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | SobelYRow = SobelYRow_NEON; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SOBELXROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | SobelXRow = SobelXRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SOBELXROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | SobelXRow = SobelXRow_NEON; | 
|  | } | 
|  | #endif | 
|  | { | 
|  | // 3 rows with edges before/after. | 
|  | const int kRowSize = (width + kEdge + 31) & ~31; | 
|  | align_buffer_64(rows, kRowSize * 2 + (kEdge + kRowSize * 3 + kEdge)); | 
|  | uint8* row_sobelx = rows; | 
|  | uint8* row_sobely = rows + kRowSize; | 
|  | uint8* row_y = rows + kRowSize * 2; | 
|  |  | 
|  | // Convert first row. | 
|  | uint8* row_y0 = row_y + kEdge; | 
|  | uint8* row_y1 = row_y0 + kRowSize; | 
|  | uint8* row_y2 = row_y1 + kRowSize; | 
|  | ARGBToYJRow(src_argb, row_y0, width); | 
|  | row_y0[-1] = row_y0[0]; | 
|  | memset(row_y0 + width, row_y0[width - 1], 16);  // Extrude 16 for valgrind. | 
|  | ARGBToYJRow(src_argb, row_y1, width); | 
|  | row_y1[-1] = row_y1[0]; | 
|  | memset(row_y1 + width, row_y1[width - 1], 16); | 
|  | memset(row_y2 + width, 0, 16); | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | // Convert next row of ARGB to G. | 
|  | if (y < (height - 1)) { | 
|  | src_argb += src_stride_argb; | 
|  | } | 
|  | ARGBToYJRow(src_argb, row_y2, width); | 
|  | row_y2[-1] = row_y2[0]; | 
|  | row_y2[width] = row_y2[width - 1]; | 
|  |  | 
|  | SobelXRow(row_y0 - 1, row_y1 - 1, row_y2 - 1, row_sobelx, width); | 
|  | SobelYRow(row_y0 - 1, row_y2 - 1, row_sobely, width); | 
|  | SobelRow(row_sobelx, row_sobely, dst_argb, width); | 
|  |  | 
|  | // Cycle thru circular queue of 3 row_y buffers. | 
|  | { | 
|  | uint8* row_yt = row_y0; | 
|  | row_y0 = row_y1; | 
|  | row_y1 = row_y2; | 
|  | row_y2 = row_yt; | 
|  | } | 
|  |  | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | free_aligned_buffer_64(rows); | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Sobel ARGB effect. | 
|  | LIBYUV_API | 
|  | int ARGBSobel(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | void (*SobelRow)(const uint8* src_sobelx, const uint8* src_sobely, | 
|  | uint8* dst_argb, int width) = SobelRow_C; | 
|  | #if defined(HAS_SOBELROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | SobelRow = SobelRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SobelRow = SobelRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SOBELROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | SobelRow = SobelRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | SobelRow = SobelRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | return ARGBSobelize(src_argb, src_stride_argb, dst_argb, dst_stride_argb, | 
|  | width, height, SobelRow); | 
|  | } | 
|  |  | 
|  | // Sobel ARGB effect with planar output. | 
|  | LIBYUV_API | 
|  | int ARGBSobelToPlane(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_y, int dst_stride_y, | 
|  | int width, int height) { | 
|  | void (*SobelToPlaneRow)(const uint8* src_sobelx, const uint8* src_sobely, | 
|  | uint8* dst_, int width) = SobelToPlaneRow_C; | 
|  | #if defined(HAS_SOBELTOPLANEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | SobelToPlaneRow = SobelToPlaneRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SobelToPlaneRow = SobelToPlaneRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SOBELTOPLANEROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | SobelToPlaneRow = SobelToPlaneRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SobelToPlaneRow = SobelToPlaneRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | return ARGBSobelize(src_argb, src_stride_argb, dst_y, dst_stride_y, | 
|  | width, height, SobelToPlaneRow); | 
|  | } | 
|  |  | 
|  | // SobelXY ARGB effect. | 
|  | // Similar to Sobel, but also stores Sobel X in R and Sobel Y in B.  G = Sobel. | 
|  | LIBYUV_API | 
|  | int ARGBSobelXY(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | void (*SobelXYRow)(const uint8* src_sobelx, const uint8* src_sobely, | 
|  | uint8* dst_argb, int width) = SobelXYRow_C; | 
|  | #if defined(HAS_SOBELXYROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | SobelXYRow = SobelXYRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SobelXYRow = SobelXYRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SOBELXYROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | SobelXYRow = SobelXYRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 8)) { | 
|  | SobelXYRow = SobelXYRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | return ARGBSobelize(src_argb, src_stride_argb, dst_argb, dst_stride_argb, | 
|  | width, height, SobelXYRow); | 
|  | } | 
|  |  | 
|  | // Apply a 4x4 polynomial to each ARGB pixel. | 
|  | LIBYUV_API | 
|  | int ARGBPolynomial(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | const float* poly, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBPolynomialRow)(const uint8* src_argb, | 
|  | uint8* dst_argb, const float* poly, | 
|  | int width) = ARGBPolynomialRow_C; | 
|  | if (!src_argb || !dst_argb || !poly || 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; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_argb == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBPOLYNOMIALROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 2)) { | 
|  | ARGBPolynomialRow = ARGBPolynomialRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBPOLYNOMIALROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2) && TestCpuFlag(kCpuHasFMA3) && | 
|  | IS_ALIGNED(width, 2)) { | 
|  | ARGBPolynomialRow = ARGBPolynomialRow_AVX2; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBPolynomialRow(src_argb, dst_argb, poly, width); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Apply a lumacolortable to each ARGB pixel. | 
|  | LIBYUV_API | 
|  | int ARGBLumaColorTable(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | const uint8* luma, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBLumaColorTableRow)(const uint8* src_argb, uint8* dst_argb, | 
|  | int width, const uint8* luma, const uint32 lumacoeff) = | 
|  | ARGBLumaColorTableRow_C; | 
|  | if (!src_argb || !dst_argb || !luma || 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; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_argb == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBLUMACOLORTABLEROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3) && IS_ALIGNED(width, 4)) { | 
|  | ARGBLumaColorTableRow = ARGBLumaColorTableRow_SSSE3; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBLumaColorTableRow(src_argb, dst_argb, width, luma, 0x00264b0f); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Copy Alpha from one ARGB image to another. | 
|  | LIBYUV_API | 
|  | int ARGBCopyAlpha(const uint8* src_argb, int src_stride_argb, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBCopyAlphaRow)(const uint8* src_argb, uint8* dst_argb, int width) = | 
|  | ARGBCopyAlphaRow_C; | 
|  | if (!src_argb || !dst_argb || 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; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_argb == width * 4 && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_argb = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBCOPYALPHAROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 8)) { | 
|  | ARGBCopyAlphaRow = ARGBCopyAlphaRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBCOPYALPHAROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2) && IS_ALIGNED(width, 16)) { | 
|  | ARGBCopyAlphaRow = ARGBCopyAlphaRow_AVX2; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBCopyAlphaRow(src_argb, dst_argb, width); | 
|  | src_argb += src_stride_argb; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | // Copy a planar Y channel to the alpha channel of a destination ARGB image. | 
|  | LIBYUV_API | 
|  | int ARGBCopyYToAlpha(const uint8* src_y, int src_stride_y, | 
|  | uint8* dst_argb, int dst_stride_argb, | 
|  | int width, int height) { | 
|  | int y; | 
|  | void (*ARGBCopyYToAlphaRow)(const uint8* src_y, uint8* dst_argb, int width) = | 
|  | ARGBCopyYToAlphaRow_C; | 
|  | if (!src_y || !dst_argb || 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; | 
|  | } | 
|  | // Coalesce rows. | 
|  | if (src_stride_y == width && | 
|  | dst_stride_argb == width * 4) { | 
|  | width *= height; | 
|  | height = 1; | 
|  | src_stride_y = dst_stride_argb = 0; | 
|  | } | 
|  | #if defined(HAS_ARGBCOPYYTOALPHAROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 8)) { | 
|  | ARGBCopyYToAlphaRow = ARGBCopyYToAlphaRow_SSE2; | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_ARGBCOPYYTOALPHAROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2) && IS_ALIGNED(width, 16)) { | 
|  | ARGBCopyYToAlphaRow = ARGBCopyYToAlphaRow_AVX2; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | for (y = 0; y < height; ++y) { | 
|  | ARGBCopyYToAlphaRow(src_y, dst_argb, width); | 
|  | src_y += src_stride_y; | 
|  | dst_argb += dst_stride_argb; | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | LIBYUV_API | 
|  | int YUY2ToNV12(const uint8* src_yuy2, int src_stride_yuy2, | 
|  | 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 (*SplitUVRow)(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int pix) = | 
|  | SplitUVRow_C; | 
|  | void (*InterpolateRow)(uint8* dst_ptr, const uint8* src_ptr, | 
|  | ptrdiff_t src_stride, int dst_width, | 
|  | int source_y_fraction) = InterpolateRow_C; | 
|  | if (!src_yuy2 || | 
|  | !dst_y || !dst_uv || | 
|  | width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // 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_SPLITUVROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | SplitUVRow = SplitUVRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SplitUVRow = SplitUVRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SPLITUVROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | SplitUVRow = SplitUVRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 32)) { | 
|  | SplitUVRow = SplitUVRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SPLITUVROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | SplitUVRow = SplitUVRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SplitUVRow = SplitUVRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | InterpolateRow = InterpolateRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | InterpolateRow = InterpolateRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | InterpolateRow = InterpolateRow_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | InterpolateRow = InterpolateRow_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | InterpolateRow = InterpolateRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 32)) { | 
|  | InterpolateRow = InterpolateRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | InterpolateRow = InterpolateRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | InterpolateRow = InterpolateRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | { | 
|  | int awidth = halfwidth * 2; | 
|  | // 2 rows of uv | 
|  | align_buffer_64(rows, awidth * 2); | 
|  |  | 
|  | for (y = 0; y < height - 1; y += 2) { | 
|  | // Split Y from UV. | 
|  | SplitUVRow(src_yuy2, dst_y, rows, awidth); | 
|  | SplitUVRow(src_yuy2 + src_stride_yuy2, dst_y + dst_stride_y, | 
|  | rows + awidth, awidth); | 
|  | InterpolateRow(dst_uv, rows, awidth, awidth, 128); | 
|  | src_yuy2 += src_stride_yuy2 * 2; | 
|  | dst_y += dst_stride_y * 2; | 
|  | dst_uv += dst_stride_uv; | 
|  | } | 
|  | if (height & 1) { | 
|  | // Split Y from UV. | 
|  | SplitUVRow(src_yuy2, dst_y, dst_uv, width); | 
|  | } | 
|  | free_aligned_buffer_64(rows); | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | LIBYUV_API | 
|  | int UYVYToNV12(const uint8* src_uyvy, int src_stride_uyvy, | 
|  | 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 (*SplitUVRow)(const uint8* src_uv, uint8* dst_u, uint8* dst_v, int pix) = | 
|  | SplitUVRow_C; | 
|  | void (*InterpolateRow)(uint8* dst_ptr, const uint8* src_ptr, | 
|  | ptrdiff_t src_stride, int dst_width, | 
|  | int source_y_fraction) = InterpolateRow_C; | 
|  | if (!src_uyvy || | 
|  | !dst_y || !dst_uv || | 
|  | width <= 0 || height == 0) { | 
|  | return -1; | 
|  | } | 
|  | // 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_SPLITUVROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | SplitUVRow = SplitUVRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SplitUVRow = SplitUVRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SPLITUVROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | SplitUVRow = SplitUVRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 32)) { | 
|  | SplitUVRow = SplitUVRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_SPLITUVROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | SplitUVRow = SplitUVRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | SplitUVRow = SplitUVRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_SSE2) | 
|  | if (TestCpuFlag(kCpuHasSSE2)) { | 
|  | InterpolateRow = InterpolateRow_Any_SSE2; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | InterpolateRow = InterpolateRow_SSE2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_SSSE3) | 
|  | if (TestCpuFlag(kCpuHasSSSE3)) { | 
|  | InterpolateRow = InterpolateRow_Any_SSSE3; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | InterpolateRow = InterpolateRow_SSSE3; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_AVX2) | 
|  | if (TestCpuFlag(kCpuHasAVX2)) { | 
|  | InterpolateRow = InterpolateRow_Any_AVX2; | 
|  | if (IS_ALIGNED(width, 32)) { | 
|  | InterpolateRow = InterpolateRow_AVX2; | 
|  | } | 
|  | } | 
|  | #endif | 
|  | #if defined(HAS_INTERPOLATEROW_NEON) | 
|  | if (TestCpuFlag(kCpuHasNEON)) { | 
|  | InterpolateRow = InterpolateRow_Any_NEON; | 
|  | if (IS_ALIGNED(width, 16)) { | 
|  | InterpolateRow = InterpolateRow_NEON; | 
|  | } | 
|  | } | 
|  | #endif | 
|  |  | 
|  | { | 
|  | int awidth = halfwidth * 2; | 
|  | // 2 rows of uv | 
|  | align_buffer_64(rows, awidth * 2); | 
|  |  | 
|  | for (y = 0; y < height - 1; y += 2) { | 
|  | // Split Y from UV. | 
|  | SplitUVRow(src_uyvy, rows, dst_y, awidth); | 
|  | SplitUVRow(src_uyvy + src_stride_uyvy, rows + awidth, | 
|  | dst_y + dst_stride_y, awidth); | 
|  | InterpolateRow(dst_uv, rows, awidth, awidth, 128); | 
|  | src_uyvy += src_stride_uyvy * 2; | 
|  | dst_y += dst_stride_y * 2; | 
|  | dst_uv += dst_stride_uv; | 
|  | } | 
|  | if (height & 1) { | 
|  | // Split Y from UV. | 
|  | SplitUVRow(src_uyvy, dst_y, dst_uv, width); | 
|  | } | 
|  | free_aligned_buffer_64(rows); | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | #ifdef __cplusplus | 
|  | }  // extern "C" | 
|  | }  // namespace libyuv | 
|  | #endif |