/*
 *  Copyright (c) 2010 The WebM 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 "vpx_config.h"
#include "vp8_rtcd.h"
#include "vpx_ports/mem.h"

extern const short vp8_six_tap_x86[8][6 * 8];

extern void vp8_filter_block1d_h6_mmx(unsigned char *src_ptr,
                                      unsigned short *output_ptr,
                                      unsigned int src_pixels_per_line,
                                      unsigned int pixel_step,
                                      unsigned int output_height,
                                      unsigned int output_width,
                                      const short *vp8_filter);
extern void vp8_filter_block1dc_v6_mmx(
    unsigned short *src_ptr, unsigned char *output_ptr, int output_pitch,
    unsigned int pixels_per_line, unsigned int pixel_step,
    unsigned int output_height, unsigned int output_width,
    const short *vp8_filter);
extern void vp8_filter_block1d8_h6_sse2(unsigned char *src_ptr,
                                        unsigned short *output_ptr,
                                        unsigned int src_pixels_per_line,
                                        unsigned int pixel_step,
                                        unsigned int output_height,
                                        unsigned int output_width,
                                        const short *vp8_filter);
extern void vp8_filter_block1d16_h6_sse2(unsigned char *src_ptr,
                                         unsigned short *output_ptr,
                                         unsigned int src_pixels_per_line,
                                         unsigned int pixel_step,
                                         unsigned int output_height,
                                         unsigned int output_width,
                                         const short *vp8_filter);
extern void vp8_filter_block1d8_v6_sse2(
    unsigned short *src_ptr, unsigned char *output_ptr, int dst_ptich,
    unsigned int pixels_per_line, unsigned int pixel_step,
    unsigned int output_height, unsigned int output_width,
    const short *vp8_filter);
extern void vp8_filter_block1d16_v6_sse2(
    unsigned short *src_ptr, unsigned char *output_ptr, int dst_ptich,
    unsigned int pixels_per_line, unsigned int pixel_step,
    unsigned int output_height, unsigned int output_width,
    const short *vp8_filter);
extern void vp8_unpack_block1d16_h6_sse2(unsigned char *src_ptr,
                                         unsigned short *output_ptr,
                                         unsigned int src_pixels_per_line,
                                         unsigned int output_height,
                                         unsigned int output_width);
extern void vp8_filter_block1d8_h6_only_sse2(unsigned char *src_ptr,
                                             unsigned int src_pixels_per_line,
                                             unsigned char *output_ptr,
                                             int dst_ptich,
                                             unsigned int output_height,
                                             const short *vp8_filter);
extern void vp8_filter_block1d16_h6_only_sse2(unsigned char *src_ptr,
                                              unsigned int src_pixels_per_line,
                                              unsigned char *output_ptr,
                                              int dst_ptich,
                                              unsigned int output_height,
                                              const short *vp8_filter);
extern void vp8_filter_block1d8_v6_only_sse2(unsigned char *src_ptr,
                                             unsigned int src_pixels_per_line,
                                             unsigned char *output_ptr,
                                             int dst_ptich,
                                             unsigned int output_height,
                                             const short *vp8_filter);

#if HAVE_MMX
void vp8_sixtap_predict4x4_mmx(unsigned char *src_ptr, int src_pixels_per_line,
                               int xoffset, int yoffset, unsigned char *dst_ptr,
                               int dst_pitch) {
  DECLARE_ALIGNED(16, unsigned short,
                  FData2[16 * 16]); /* Temp data bufffer used in filtering */
  const short *HFilter, *VFilter;
  HFilter = vp8_six_tap_x86[xoffset];
  vp8_filter_block1d_h6_mmx(src_ptr - (2 * src_pixels_per_line), FData2,
                            src_pixels_per_line, 1, 9, 8, HFilter);
  VFilter = vp8_six_tap_x86[yoffset];
  vp8_filter_block1dc_v6_mmx(FData2 + 8, dst_ptr, dst_pitch, 8, 4, 4, 4,
                             VFilter);
}
#endif

#if HAVE_SSE2
void vp8_sixtap_predict16x16_sse2(unsigned char *src_ptr,
                                  int src_pixels_per_line, int xoffset,
                                  int yoffset, unsigned char *dst_ptr,
                                  int dst_pitch) {
  DECLARE_ALIGNED(16, unsigned short,
                  FData2[24 * 24]); /* Temp data bufffer used in filtering */

  const short *HFilter, *VFilter;

  if (xoffset) {
    if (yoffset) {
      HFilter = vp8_six_tap_x86[xoffset];
      vp8_filter_block1d16_h6_sse2(src_ptr - (2 * src_pixels_per_line), FData2,
                                   src_pixels_per_line, 1, 21, 32, HFilter);
      VFilter = vp8_six_tap_x86[yoffset];
      vp8_filter_block1d16_v6_sse2(FData2 + 32, dst_ptr, dst_pitch, 32, 16, 16,
                                   dst_pitch, VFilter);
    } else {
      /* First-pass only */
      HFilter = vp8_six_tap_x86[xoffset];
      vp8_filter_block1d16_h6_only_sse2(src_ptr, src_pixels_per_line, dst_ptr,
                                        dst_pitch, 16, HFilter);
    }
  } else {
    /* Second-pass only */
    VFilter = vp8_six_tap_x86[yoffset];
    vp8_unpack_block1d16_h6_sse2(src_ptr - (2 * src_pixels_per_line), FData2,
                                 src_pixels_per_line, 21, 32);
    vp8_filter_block1d16_v6_sse2(FData2 + 32, dst_ptr, dst_pitch, 32, 16, 16,
                                 dst_pitch, VFilter);
  }
}

void vp8_sixtap_predict8x8_sse2(unsigned char *src_ptr, int src_pixels_per_line,
                                int xoffset, int yoffset,
                                unsigned char *dst_ptr, int dst_pitch) {
  DECLARE_ALIGNED(16, unsigned short,
                  FData2[256]); /* Temp data bufffer used in filtering */
  const short *HFilter, *VFilter;

  if (xoffset) {
    if (yoffset) {
      HFilter = vp8_six_tap_x86[xoffset];
      vp8_filter_block1d8_h6_sse2(src_ptr - (2 * src_pixels_per_line), FData2,
                                  src_pixels_per_line, 1, 13, 16, HFilter);
      VFilter = vp8_six_tap_x86[yoffset];
      vp8_filter_block1d8_v6_sse2(FData2 + 16, dst_ptr, dst_pitch, 16, 8, 8,
                                  dst_pitch, VFilter);
    } else {
      /* First-pass only */
      HFilter = vp8_six_tap_x86[xoffset];
      vp8_filter_block1d8_h6_only_sse2(src_ptr, src_pixels_per_line, dst_ptr,
                                       dst_pitch, 8, HFilter);
    }
  } else {
    /* Second-pass only */
    VFilter = vp8_six_tap_x86[yoffset];
    vp8_filter_block1d8_v6_only_sse2(src_ptr - (2 * src_pixels_per_line),
                                     src_pixels_per_line, dst_ptr, dst_pitch, 8,
                                     VFilter);
  }
}

void vp8_sixtap_predict8x4_sse2(unsigned char *src_ptr, int src_pixels_per_line,
                                int xoffset, int yoffset,
                                unsigned char *dst_ptr, int dst_pitch) {
  DECLARE_ALIGNED(16, unsigned short,
                  FData2[256]); /* Temp data bufffer used in filtering */
  const short *HFilter, *VFilter;

  if (xoffset) {
    if (yoffset) {
      HFilter = vp8_six_tap_x86[xoffset];
      vp8_filter_block1d8_h6_sse2(src_ptr - (2 * src_pixels_per_line), FData2,
                                  src_pixels_per_line, 1, 9, 16, HFilter);
      VFilter = vp8_six_tap_x86[yoffset];
      vp8_filter_block1d8_v6_sse2(FData2 + 16, dst_ptr, dst_pitch, 16, 8, 4,
                                  dst_pitch, VFilter);
    } else {
      /* First-pass only */
      HFilter = vp8_six_tap_x86[xoffset];
      vp8_filter_block1d8_h6_only_sse2(src_ptr, src_pixels_per_line, dst_ptr,
                                       dst_pitch, 4, HFilter);
    }
  } else {
    /* Second-pass only */
    VFilter = vp8_six_tap_x86[yoffset];
    vp8_filter_block1d8_v6_only_sse2(src_ptr - (2 * src_pixels_per_line),
                                     src_pixels_per_line, dst_ptr, dst_pitch, 4,
                                     VFilter);
  }
}

#endif

#if HAVE_SSSE3

extern void vp8_filter_block1d8_h6_ssse3(unsigned char *src_ptr,
                                         unsigned int src_pixels_per_line,
                                         unsigned char *output_ptr,
                                         unsigned int output_pitch,
                                         unsigned int output_height,
                                         unsigned int vp8_filter_index);

extern void vp8_filter_block1d16_h6_ssse3(unsigned char *src_ptr,
                                          unsigned int src_pixels_per_line,
                                          unsigned char *output_ptr,
                                          unsigned int output_pitch,
                                          unsigned int output_height,
                                          unsigned int vp8_filter_index);

extern void vp8_filter_block1d16_v6_ssse3(unsigned char *src_ptr,
                                          unsigned int src_pitch,
                                          unsigned char *output_ptr,
                                          unsigned int out_pitch,
                                          unsigned int output_height,
                                          unsigned int vp8_filter_index);

extern void vp8_filter_block1d8_v6_ssse3(unsigned char *src_ptr,
                                         unsigned int src_pitch,
                                         unsigned char *output_ptr,
                                         unsigned int out_pitch,
                                         unsigned int output_height,
                                         unsigned int vp8_filter_index);

extern void vp8_filter_block1d4_h6_ssse3(unsigned char *src_ptr,
                                         unsigned int src_pixels_per_line,
                                         unsigned char *output_ptr,
                                         unsigned int output_pitch,
                                         unsigned int output_height,
                                         unsigned int vp8_filter_index);

extern void vp8_filter_block1d4_v6_ssse3(unsigned char *src_ptr,
                                         unsigned int src_pitch,
                                         unsigned char *output_ptr,
                                         unsigned int out_pitch,
                                         unsigned int output_height,
                                         unsigned int vp8_filter_index);

void vp8_sixtap_predict16x16_ssse3(unsigned char *src_ptr,
                                   int src_pixels_per_line, int xoffset,
                                   int yoffset, unsigned char *dst_ptr,
                                   int dst_pitch) {
  DECLARE_ALIGNED(16, unsigned char, FData2[24 * 24]);

  if (xoffset) {
    if (yoffset) {
      vp8_filter_block1d16_h6_ssse3(src_ptr - (2 * src_pixels_per_line),
                                    src_pixels_per_line, FData2, 16, 21,
                                    xoffset);
      vp8_filter_block1d16_v6_ssse3(FData2, 16, dst_ptr, dst_pitch, 16,
                                    yoffset);
    } else {
      /* First-pass only */
      vp8_filter_block1d16_h6_ssse3(src_ptr, src_pixels_per_line, dst_ptr,
                                    dst_pitch, 16, xoffset);
    }
  } else {
    if (yoffset) {
      /* Second-pass only */
      vp8_filter_block1d16_v6_ssse3(src_ptr - (2 * src_pixels_per_line),
                                    src_pixels_per_line, dst_ptr, dst_pitch, 16,
                                    yoffset);
    } else {
      /* ssse3 second-pass only function couldn't handle (xoffset==0 &&
       * yoffset==0) case correctly. Add copy function here to guarantee
       * six-tap function handles all possible offsets. */
      vp8_copy_mem16x16(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch);
    }
  }
}

void vp8_sixtap_predict8x8_ssse3(unsigned char *src_ptr,
                                 int src_pixels_per_line, int xoffset,
                                 int yoffset, unsigned char *dst_ptr,
                                 int dst_pitch) {
  DECLARE_ALIGNED(16, unsigned char, FData2[256]);

  if (xoffset) {
    if (yoffset) {
      vp8_filter_block1d8_h6_ssse3(src_ptr - (2 * src_pixels_per_line),
                                   src_pixels_per_line, FData2, 8, 13, xoffset);
      vp8_filter_block1d8_v6_ssse3(FData2, 8, dst_ptr, dst_pitch, 8, yoffset);
    } else {
      vp8_filter_block1d8_h6_ssse3(src_ptr, src_pixels_per_line, dst_ptr,
                                   dst_pitch, 8, xoffset);
    }
  } else {
    if (yoffset) {
      /* Second-pass only */
      vp8_filter_block1d8_v6_ssse3(src_ptr - (2 * src_pixels_per_line),
                                   src_pixels_per_line, dst_ptr, dst_pitch, 8,
                                   yoffset);
    } else {
      /* ssse3 second-pass only function couldn't handle (xoffset==0 &&
       * yoffset==0) case correctly. Add copy function here to guarantee
       * six-tap function handles all possible offsets. */
      vp8_copy_mem8x8(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch);
    }
  }
}

void vp8_sixtap_predict8x4_ssse3(unsigned char *src_ptr,
                                 int src_pixels_per_line, int xoffset,
                                 int yoffset, unsigned char *dst_ptr,
                                 int dst_pitch) {
  DECLARE_ALIGNED(16, unsigned char, FData2[256]);

  if (xoffset) {
    if (yoffset) {
      vp8_filter_block1d8_h6_ssse3(src_ptr - (2 * src_pixels_per_line),
                                   src_pixels_per_line, FData2, 8, 9, xoffset);
      vp8_filter_block1d8_v6_ssse3(FData2, 8, dst_ptr, dst_pitch, 4, yoffset);
    } else {
      /* First-pass only */
      vp8_filter_block1d8_h6_ssse3(src_ptr, src_pixels_per_line, dst_ptr,
                                   dst_pitch, 4, xoffset);
    }
  } else {
    if (yoffset) {
      /* Second-pass only */
      vp8_filter_block1d8_v6_ssse3(src_ptr - (2 * src_pixels_per_line),
                                   src_pixels_per_line, dst_ptr, dst_pitch, 4,
                                   yoffset);
    } else {
      /* ssse3 second-pass only function couldn't handle (xoffset==0 &&
       * yoffset==0) case correctly. Add copy function here to guarantee
       * six-tap function handles all possible offsets. */
      vp8_copy_mem8x4(src_ptr, src_pixels_per_line, dst_ptr, dst_pitch);
    }
  }
}

void vp8_sixtap_predict4x4_ssse3(unsigned char *src_ptr,
                                 int src_pixels_per_line, int xoffset,
                                 int yoffset, unsigned char *dst_ptr,
                                 int dst_pitch) {
  DECLARE_ALIGNED(16, unsigned char, FData2[4 * 9]);

  if (xoffset) {
    if (yoffset) {
      vp8_filter_block1d4_h6_ssse3(src_ptr - (2 * src_pixels_per_line),
                                   src_pixels_per_line, FData2, 4, 9, xoffset);
      vp8_filter_block1d4_v6_ssse3(FData2, 4, dst_ptr, dst_pitch, 4, yoffset);
    } else {
      vp8_filter_block1d4_h6_ssse3(src_ptr, src_pixels_per_line, dst_ptr,
                                   dst_pitch, 4, xoffset);
    }
  } else {
    if (yoffset) {
      vp8_filter_block1d4_v6_ssse3(src_ptr - (2 * src_pixels_per_line),
                                   src_pixels_per_line, dst_ptr, dst_pitch, 4,
                                   yoffset);
    } else {
      /* ssse3 second-pass only function couldn't handle (xoffset==0 &&
       * yoffset==0) case correctly. Add copy function here to guarantee
       * six-tap function handles all possible offsets. */
      int r;

      for (r = 0; r < 4; ++r) {
        dst_ptr[0] = src_ptr[0];
        dst_ptr[1] = src_ptr[1];
        dst_ptr[2] = src_ptr[2];
        dst_ptr[3] = src_ptr[3];
        dst_ptr += dst_pitch;
        src_ptr += src_pixels_per_line;
      }
    }
  }
}

#endif