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/* *  Copyright 2015 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/scale.h"#include "libyuv/scale_row.h" #include "libyuv/basic_types.h" #ifdef __cplusplusnamespace libyuv {extern "C" {#endif // Definition for ScaleFilterCols, ScaleARGBCols and ScaleARGBFilterCols#define CANY(NAMEANY, TERP_SIMD, TERP_C, BPP, MASK)                            \  void NAMEANY(uint8_t* dst_ptr, const uint8_t* src_ptr, int dst_width, int x, \               int dx) {                                                       \    int r = dst_width & MASK;                                                  \    int n = dst_width & ~MASK;                                                 \    if (n > 0) {                                                               \      TERP_SIMD(dst_ptr, src_ptr, n, x, dx);                                   \    }                                                                          \    TERP_C(dst_ptr + n * BPP, src_ptr, r, x + n * dx, dx);                     \  } #ifdef HAS_SCALEFILTERCOLS_NEONCANY(ScaleFilterCols_Any_NEON, ScaleFilterCols_NEON, ScaleFilterCols_C, 1, 7)#endif#ifdef HAS_SCALEFILTERCOLS_MSACANY(ScaleFilterCols_Any_MSA, ScaleFilterCols_MSA, ScaleFilterCols_C, 1, 15)#endif#ifdef HAS_SCALEARGBCOLS_NEONCANY(ScaleARGBCols_Any_NEON, ScaleARGBCols_NEON, ScaleARGBCols_C, 4, 7)#endif#ifdef HAS_SCALEARGBCOLS_MSACANY(ScaleARGBCols_Any_MSA, ScaleARGBCols_MSA, ScaleARGBCols_C, 4, 3)#endif#ifdef HAS_SCALEARGBFILTERCOLS_NEONCANY(ScaleARGBFilterCols_Any_NEON,     ScaleARGBFilterCols_NEON,     ScaleARGBFilterCols_C,     4,     3)#endif#ifdef HAS_SCALEARGBFILTERCOLS_MSACANY(ScaleARGBFilterCols_Any_MSA,     ScaleARGBFilterCols_MSA,     ScaleARGBFilterCols_C,     4,     7)#endif#undef CANY // Fixed scale down.// Mask may be non-power of 2, so use MOD#define SDANY(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, FACTOR, BPP, MASK)   \  void NAMEANY(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, \               int dst_width) {                                                \    int r = (int)((unsigned int)dst_width % (MASK + 1)); /* NOLINT */          \    int n = dst_width - r;                                                     \    if (n > 0) {                                                               \      SCALEROWDOWN_SIMD(src_ptr, src_stride, dst_ptr, n);                      \    }                                                                          \    SCALEROWDOWN_C(src_ptr + (n * FACTOR) * BPP, src_stride,                   \                   dst_ptr + n * BPP, r);                                      \  } // Fixed scale down for odd source width.  Used by I420Blend subsampling.// Since dst_width is (width + 1) / 2, this function scales one less pixel// and copies the last pixel.#define SDODD(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, FACTOR, BPP, MASK)   \  void NAMEANY(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, \               int dst_width) {                                                \    int r = (int)((unsigned int)(dst_width - 1) % (MASK + 1)); /* NOLINT */    \    int n = (dst_width - 1) - r;                                               \    if (n > 0) {                                                               \      SCALEROWDOWN_SIMD(src_ptr, src_stride, dst_ptr, n);                      \    }                                                                          \    SCALEROWDOWN_C(src_ptr + (n * FACTOR) * BPP, src_stride,                   \                   dst_ptr + n * BPP, r + 1);                                  \  } #ifdef HAS_SCALEROWDOWN2_SSSE3SDANY(ScaleRowDown2_Any_SSSE3, ScaleRowDown2_SSSE3, ScaleRowDown2_C, 2, 1, 15)SDANY(ScaleRowDown2Linear_Any_SSSE3,      ScaleRowDown2Linear_SSSE3,      ScaleRowDown2Linear_C,      2,      1,      15)SDANY(ScaleRowDown2Box_Any_SSSE3,      ScaleRowDown2Box_SSSE3,      ScaleRowDown2Box_C,      2,      1,      15)SDODD(ScaleRowDown2Box_Odd_SSSE3,      ScaleRowDown2Box_SSSE3,      ScaleRowDown2Box_Odd_C,      2,      1,      15)#endif#ifdef HAS_SCALEROWDOWN2_AVX2SDANY(ScaleRowDown2_Any_AVX2, ScaleRowDown2_AVX2, ScaleRowDown2_C, 2, 1, 31)SDANY(ScaleRowDown2Linear_Any_AVX2,      ScaleRowDown2Linear_AVX2,      ScaleRowDown2Linear_C,      2,      1,      31)SDANY(ScaleRowDown2Box_Any_AVX2,      ScaleRowDown2Box_AVX2,      ScaleRowDown2Box_C,      2,      1,      31)SDODD(ScaleRowDown2Box_Odd_AVX2,      ScaleRowDown2Box_AVX2,      ScaleRowDown2Box_Odd_C,      2,      1,      31)#endif#ifdef HAS_SCALEROWDOWN2_NEONSDANY(ScaleRowDown2_Any_NEON, ScaleRowDown2_NEON, ScaleRowDown2_C, 2, 1, 15)SDANY(ScaleRowDown2Linear_Any_NEON,      ScaleRowDown2Linear_NEON,      ScaleRowDown2Linear_C,      2,      1,      15)SDANY(ScaleRowDown2Box_Any_NEON,      ScaleRowDown2Box_NEON,      ScaleRowDown2Box_C,      2,      1,      15)SDODD(ScaleRowDown2Box_Odd_NEON,      ScaleRowDown2Box_NEON,      ScaleRowDown2Box_Odd_C,      2,      1,      15)#endif#ifdef HAS_SCALEROWDOWN2_MSASDANY(ScaleRowDown2_Any_MSA, ScaleRowDown2_MSA, ScaleRowDown2_C, 2, 1, 31)SDANY(ScaleRowDown2Linear_Any_MSA,      ScaleRowDown2Linear_MSA,      ScaleRowDown2Linear_C,      2,      1,      31)SDANY(ScaleRowDown2Box_Any_MSA,      ScaleRowDown2Box_MSA,      ScaleRowDown2Box_C,      2,      1,      31)#endif#ifdef HAS_SCALEROWDOWN4_SSSE3SDANY(ScaleRowDown4_Any_SSSE3, ScaleRowDown4_SSSE3, ScaleRowDown4_C, 4, 1, 7)SDANY(ScaleRowDown4Box_Any_SSSE3,      ScaleRowDown4Box_SSSE3,      ScaleRowDown4Box_C,      4,      1,      7)#endif#ifdef HAS_SCALEROWDOWN4_AVX2SDANY(ScaleRowDown4_Any_AVX2, ScaleRowDown4_AVX2, ScaleRowDown4_C, 4, 1, 15)SDANY(ScaleRowDown4Box_Any_AVX2,      ScaleRowDown4Box_AVX2,      ScaleRowDown4Box_C,      4,      1,      15)#endif#ifdef HAS_SCALEROWDOWN4_NEONSDANY(ScaleRowDown4_Any_NEON, ScaleRowDown4_NEON, ScaleRowDown4_C, 4, 1, 7)SDANY(ScaleRowDown4Box_Any_NEON,      ScaleRowDown4Box_NEON,      ScaleRowDown4Box_C,      4,      1,      7)#endif#ifdef HAS_SCALEROWDOWN4_MSASDANY(ScaleRowDown4_Any_MSA, ScaleRowDown4_MSA, ScaleRowDown4_C, 4, 1, 15)SDANY(ScaleRowDown4Box_Any_MSA,      ScaleRowDown4Box_MSA,      ScaleRowDown4Box_C,      4,      1,      15)#endif#ifdef HAS_SCALEROWDOWN34_SSSE3SDANY(ScaleRowDown34_Any_SSSE3,      ScaleRowDown34_SSSE3,      ScaleRowDown34_C,      4 / 3,      1,      23)SDANY(ScaleRowDown34_0_Box_Any_SSSE3,      ScaleRowDown34_0_Box_SSSE3,      ScaleRowDown34_0_Box_C,      4 / 3,      1,      23)SDANY(ScaleRowDown34_1_Box_Any_SSSE3,      ScaleRowDown34_1_Box_SSSE3,      ScaleRowDown34_1_Box_C,      4 / 3,      1,      23)#endif#ifdef HAS_SCALEROWDOWN34_NEONSDANY(ScaleRowDown34_Any_NEON,      ScaleRowDown34_NEON,      ScaleRowDown34_C,      4 / 3,      1,      23)SDANY(ScaleRowDown34_0_Box_Any_NEON,      ScaleRowDown34_0_Box_NEON,      ScaleRowDown34_0_Box_C,      4 / 3,      1,      23)SDANY(ScaleRowDown34_1_Box_Any_NEON,      ScaleRowDown34_1_Box_NEON,      ScaleRowDown34_1_Box_C,      4 / 3,      1,      23)#endif#ifdef HAS_SCALEROWDOWN34_MSASDANY(ScaleRowDown34_Any_MSA,      ScaleRowDown34_MSA,      ScaleRowDown34_C,      4 / 3,      1,      47)SDANY(ScaleRowDown34_0_Box_Any_MSA,      ScaleRowDown34_0_Box_MSA,      ScaleRowDown34_0_Box_C,      4 / 3,      1,      47)SDANY(ScaleRowDown34_1_Box_Any_MSA,      ScaleRowDown34_1_Box_MSA,      ScaleRowDown34_1_Box_C,      4 / 3,      1,      47)#endif#ifdef HAS_SCALEROWDOWN38_SSSE3SDANY(ScaleRowDown38_Any_SSSE3,      ScaleRowDown38_SSSE3,      ScaleRowDown38_C,      8 / 3,      1,      11)SDANY(ScaleRowDown38_3_Box_Any_SSSE3,      ScaleRowDown38_3_Box_SSSE3,      ScaleRowDown38_3_Box_C,      8 / 3,      1,      5)SDANY(ScaleRowDown38_2_Box_Any_SSSE3,      ScaleRowDown38_2_Box_SSSE3,      ScaleRowDown38_2_Box_C,      8 / 3,      1,      5)#endif#ifdef HAS_SCALEROWDOWN38_NEONSDANY(ScaleRowDown38_Any_NEON,      ScaleRowDown38_NEON,      ScaleRowDown38_C,      8 / 3,      1,      11)SDANY(ScaleRowDown38_3_Box_Any_NEON,      ScaleRowDown38_3_Box_NEON,      ScaleRowDown38_3_Box_C,      8 / 3,      1,      11)SDANY(ScaleRowDown38_2_Box_Any_NEON,      ScaleRowDown38_2_Box_NEON,      ScaleRowDown38_2_Box_C,      8 / 3,      1,      11)#endif#ifdef HAS_SCALEROWDOWN38_MSASDANY(ScaleRowDown38_Any_MSA,      ScaleRowDown38_MSA,      ScaleRowDown38_C,      8 / 3,      1,      11)SDANY(ScaleRowDown38_3_Box_Any_MSA,      ScaleRowDown38_3_Box_MSA,      ScaleRowDown38_3_Box_C,      8 / 3,      1,      11)SDANY(ScaleRowDown38_2_Box_Any_MSA,      ScaleRowDown38_2_Box_MSA,      ScaleRowDown38_2_Box_C,      8 / 3,      1,      11)#endif #ifdef HAS_SCALEARGBROWDOWN2_SSE2SDANY(ScaleARGBRowDown2_Any_SSE2,      ScaleARGBRowDown2_SSE2,      ScaleARGBRowDown2_C,      2,      4,      3)SDANY(ScaleARGBRowDown2Linear_Any_SSE2,      ScaleARGBRowDown2Linear_SSE2,      ScaleARGBRowDown2Linear_C,      2,      4,      3)SDANY(ScaleARGBRowDown2Box_Any_SSE2,      ScaleARGBRowDown2Box_SSE2,      ScaleARGBRowDown2Box_C,      2,      4,      3)#endif#ifdef HAS_SCALEARGBROWDOWN2_NEONSDANY(ScaleARGBRowDown2_Any_NEON,      ScaleARGBRowDown2_NEON,      ScaleARGBRowDown2_C,      2,      4,      7)SDANY(ScaleARGBRowDown2Linear_Any_NEON,      ScaleARGBRowDown2Linear_NEON,      ScaleARGBRowDown2Linear_C,      2,      4,      7)SDANY(ScaleARGBRowDown2Box_Any_NEON,      ScaleARGBRowDown2Box_NEON,      ScaleARGBRowDown2Box_C,      2,      4,      7)#endif#ifdef HAS_SCALEARGBROWDOWN2_MSASDANY(ScaleARGBRowDown2_Any_MSA,      ScaleARGBRowDown2_MSA,      ScaleARGBRowDown2_C,      2,      4,      3)SDANY(ScaleARGBRowDown2Linear_Any_MSA,      ScaleARGBRowDown2Linear_MSA,      ScaleARGBRowDown2Linear_C,      2,      4,      3)SDANY(ScaleARGBRowDown2Box_Any_MSA,      ScaleARGBRowDown2Box_MSA,      ScaleARGBRowDown2Box_C,      2,      4,      3)#endif#undef SDANY // Scale down by even scale factor.#define SDAANY(NAMEANY, SCALEROWDOWN_SIMD, SCALEROWDOWN_C, BPP, MASK)       \  void NAMEANY(const uint8_t* src_ptr, ptrdiff_t src_stride, int src_stepx, \               uint8_t* dst_ptr, int dst_width) {                           \    int r = dst_width & MASK;                                               \    int n = dst_width & ~MASK;                                              \    if (n > 0) {                                                            \      SCALEROWDOWN_SIMD(src_ptr, src_stride, src_stepx, dst_ptr, n);        \    }                                                                       \    SCALEROWDOWN_C(src_ptr + (n * src_stepx) * BPP, src_stride, src_stepx,  \                   dst_ptr + n * BPP, r);                                   \  } #ifdef HAS_SCALEARGBROWDOWNEVEN_SSE2SDAANY(ScaleARGBRowDownEven_Any_SSE2,       ScaleARGBRowDownEven_SSE2,       ScaleARGBRowDownEven_C,       4,       3)SDAANY(ScaleARGBRowDownEvenBox_Any_SSE2,       ScaleARGBRowDownEvenBox_SSE2,       ScaleARGBRowDownEvenBox_C,       4,       3)#endif#ifdef HAS_SCALEARGBROWDOWNEVEN_NEONSDAANY(ScaleARGBRowDownEven_Any_NEON,       ScaleARGBRowDownEven_NEON,       ScaleARGBRowDownEven_C,       4,       3)SDAANY(ScaleARGBRowDownEvenBox_Any_NEON,       ScaleARGBRowDownEvenBox_NEON,       ScaleARGBRowDownEvenBox_C,       4,       3)#endif#ifdef HAS_SCALEARGBROWDOWNEVEN_MSASDAANY(ScaleARGBRowDownEven_Any_MSA,       ScaleARGBRowDownEven_MSA,       ScaleARGBRowDownEven_C,       4,       3)SDAANY(ScaleARGBRowDownEvenBox_Any_MSA,       ScaleARGBRowDownEvenBox_MSA,       ScaleARGBRowDownEvenBox_C,       4,       3)#endif // Add rows box filter scale down.#define SAANY(NAMEANY, SCALEADDROW_SIMD, SCALEADDROW_C, MASK)              \  void NAMEANY(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) { \    int n = src_width & ~MASK;                                             \    if (n > 0) {                                                           \      SCALEADDROW_SIMD(src_ptr, dst_ptr, n);                               \    }                                                                      \    SCALEADDROW_C(src_ptr + n, dst_ptr + n, src_width & MASK);             \  } #ifdef HAS_SCALEADDROW_SSE2SAANY(ScaleAddRow_Any_SSE2, ScaleAddRow_SSE2, ScaleAddRow_C, 15)#endif#ifdef HAS_SCALEADDROW_AVX2SAANY(ScaleAddRow_Any_AVX2, ScaleAddRow_AVX2, ScaleAddRow_C, 31)#endif#ifdef HAS_SCALEADDROW_NEONSAANY(ScaleAddRow_Any_NEON, ScaleAddRow_NEON, ScaleAddRow_C, 15)#endif#ifdef HAS_SCALEADDROW_MSASAANY(ScaleAddRow_Any_MSA, ScaleAddRow_MSA, ScaleAddRow_C, 15)#endif#undef SAANY #ifdef __cplusplus}  // extern "C"}  // namespace libyuv#endif

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