sub vp9_common_forward_decls() {
print <<EOF
/*
 * VP9
 */

#include "vpx/vpx_integer.h"
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_enums.h"

struct macroblockd;

/* Encoder forward decls */
struct macroblock;
struct vp9_variance_vtable;
struct search_site_config;
struct mv;
union int_mv;
struct yv12_buffer_config;
EOF
}
forward_decls qw/vp9_common_forward_decls/;

# x86inc.asm had specific constraints. break it out so it's easy to disable.
# zero all the variables to avoid tricky else conditions.
$mmx_x86inc = $sse_x86inc = $sse2_x86inc = $ssse3_x86inc = $avx_x86inc =
  $avx2_x86inc = '';
$mmx_x86_64_x86inc = $sse_x86_64_x86inc = $sse2_x86_64_x86inc =
  $ssse3_x86_64_x86inc = $avx_x86_64_x86inc = $avx2_x86_64_x86inc = '';
if (vpx_config("CONFIG_USE_X86INC") eq "yes") {
  $mmx_x86inc = 'mmx';
  $sse_x86inc = 'sse';
  $sse2_x86inc = 'sse2';
  $ssse3_x86inc = 'ssse3';
  $avx_x86inc = 'avx';
  $avx2_x86inc = 'avx2';
  if ($opts{arch} eq "x86_64") {
    $mmx_x86_64_x86inc = 'mmx';
    $sse_x86_64_x86inc = 'sse';
    $sse2_x86_64_x86inc = 'sse2';
    $ssse3_x86_64_x86inc = 'ssse3';
    $avx_x86_64_x86inc = 'avx';
    $avx2_x86_64_x86inc = 'avx2';
  }
}

# functions that are 64 bit only.
$mmx_x86_64 = $sse2_x86_64 = $ssse3_x86_64 = $avx_x86_64 = $avx2_x86_64 = '';
if ($opts{arch} eq "x86_64") {
  $mmx_x86_64 = 'mmx';
  $sse2_x86_64 = 'sse2';
  $ssse3_x86_64 = 'ssse3';
  $avx_x86_64 = 'avx';
  $avx2_x86_64 = 'avx2';
}

#
# post proc
#
if (vpx_config("CONFIG_VP9_POSTPROC") eq "yes") {
add_proto qw/void vp9_mbpost_proc_down/, "uint8_t *dst, int pitch, int rows, int cols, int flimit";
specialize qw/vp9_mbpost_proc_down sse2/;
$vp9_mbpost_proc_down_sse2=vp9_mbpost_proc_down_xmm;

add_proto qw/void vp9_mbpost_proc_across_ip/, "uint8_t *src, int pitch, int rows, int cols, int flimit";
specialize qw/vp9_mbpost_proc_across_ip sse2/;
$vp9_mbpost_proc_across_ip_sse2=vp9_mbpost_proc_across_ip_xmm;

add_proto qw/void vp9_post_proc_down_and_across/, "const uint8_t *src_ptr, uint8_t *dst_ptr, int src_pixels_per_line, int dst_pixels_per_line, int rows, int cols, int flimit";
specialize qw/vp9_post_proc_down_and_across sse2/;
$vp9_post_proc_down_and_across_sse2=vp9_post_proc_down_and_across_xmm;

add_proto qw/void vp9_plane_add_noise/, "uint8_t *Start, char *noise, char blackclamp[16], char whiteclamp[16], char bothclamp[16], unsigned int Width, unsigned int Height, int Pitch";
specialize qw/vp9_plane_add_noise sse2/;
$vp9_plane_add_noise_sse2=vp9_plane_add_noise_wmt;

add_proto qw/void vp9_filter_by_weight16x16/, "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int src_weight";
specialize qw/vp9_filter_by_weight16x16 sse2 msa/;

add_proto qw/void vp9_filter_by_weight8x8/, "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int src_weight";
specialize qw/vp9_filter_by_weight8x8 sse2 msa/;
}

#
# dct
#
if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
  # Force C versions if CONFIG_EMULATE_HARDWARE is 1
  if (vpx_config("CONFIG_EMULATE_HARDWARE") eq "yes") {
    add_proto qw/void vp9_iht4x4_16_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
    specialize qw/vp9_iht4x4_16_add/;

    add_proto qw/void vp9_iht8x8_64_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
    specialize qw/vp9_iht8x8_64_add/;

    add_proto qw/void vp9_iht16x16_256_add/, "const tran_low_t *input, uint8_t *output, int pitch, int tx_type";
    specialize qw/vp9_iht16x16_256_add/;
  } else {
    add_proto qw/void vp9_iht4x4_16_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
    specialize qw/vp9_iht4x4_16_add sse2/;

    add_proto qw/void vp9_iht8x8_64_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
    specialize qw/vp9_iht8x8_64_add sse2/;

    add_proto qw/void vp9_iht16x16_256_add/, "const tran_low_t *input, uint8_t *output, int pitch, int tx_type";
    specialize qw/vp9_iht16x16_256_add sse2/;
  }
} else {
  # Force C versions if CONFIG_EMULATE_HARDWARE is 1
  if (vpx_config("CONFIG_EMULATE_HARDWARE") eq "yes") {
    add_proto qw/void vp9_iht4x4_16_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
    specialize qw/vp9_iht4x4_16_add/;

    add_proto qw/void vp9_iht8x8_64_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
    specialize qw/vp9_iht8x8_64_add/;

    add_proto qw/void vp9_iht16x16_256_add/, "const tran_low_t *input, uint8_t *output, int pitch, int tx_type";
    specialize qw/vp9_iht16x16_256_add/;
  } else {
    add_proto qw/void vp9_iht4x4_16_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
    specialize qw/vp9_iht4x4_16_add sse2 neon dspr2 msa/;

    add_proto qw/void vp9_iht8x8_64_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type";
    specialize qw/vp9_iht8x8_64_add sse2 neon dspr2 msa/;

    add_proto qw/void vp9_iht16x16_256_add/, "const tran_low_t *input, uint8_t *output, int pitch, int tx_type";
    specialize qw/vp9_iht16x16_256_add sse2 dspr2 msa/;
  }
}

# High bitdepth functions
if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
  #
  # Sub Pixel Filters
  #
  add_proto qw/void vp9_highbd_convolve_copy/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h, int bps";
  specialize qw/vp9_highbd_convolve_copy/;

  add_proto qw/void vp9_highbd_convolve_avg/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h, int bps";
  specialize qw/vp9_highbd_convolve_avg/;

  add_proto qw/void vp9_highbd_convolve8/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h, int bps";
  specialize qw/vp9_highbd_convolve8/, "$sse2_x86_64";

  add_proto qw/void vp9_highbd_convolve8_horiz/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h, int bps";
  specialize qw/vp9_highbd_convolve8_horiz/, "$sse2_x86_64";

  add_proto qw/void vp9_highbd_convolve8_vert/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h, int bps";
  specialize qw/vp9_highbd_convolve8_vert/, "$sse2_x86_64";

  add_proto qw/void vp9_highbd_convolve8_avg/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h, int bps";
  specialize qw/vp9_highbd_convolve8_avg/, "$sse2_x86_64";

  add_proto qw/void vp9_highbd_convolve8_avg_horiz/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h, int bps";
  specialize qw/vp9_highbd_convolve8_avg_horiz/, "$sse2_x86_64";

  add_proto qw/void vp9_highbd_convolve8_avg_vert/, "const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, ptrdiff_t dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h, int bps";
  specialize qw/vp9_highbd_convolve8_avg_vert/, "$sse2_x86_64";

  #
  # post proc
  #
  if (vpx_config("CONFIG_VP9_POSTPROC") eq "yes") {
    add_proto qw/void vp9_highbd_mbpost_proc_down/, "uint16_t *dst, int pitch, int rows, int cols, int flimit";
    specialize qw/vp9_highbd_mbpost_proc_down/;

    add_proto qw/void vp9_highbd_mbpost_proc_across_ip/, "uint16_t *src, int pitch, int rows, int cols, int flimit";
    specialize qw/vp9_highbd_mbpost_proc_across_ip/;

    add_proto qw/void vp9_highbd_post_proc_down_and_across/, "const uint16_t *src_ptr, uint16_t *dst_ptr, int src_pixels_per_line, int dst_pixels_per_line, int rows, int cols, int flimit";
    specialize qw/vp9_highbd_post_proc_down_and_across/;

    add_proto qw/void vp9_highbd_plane_add_noise/, "uint8_t *Start, char *noise, char blackclamp[16], char whiteclamp[16], char bothclamp[16], unsigned int Width, unsigned int Height, int Pitch";
    specialize qw/vp9_highbd_plane_add_noise/;
  }

  #
  # dct
  #
  # Note as optimized versions of these functions are added we need to add a check to ensure
  # that when CONFIG_EMULATE_HARDWARE is on, it defaults to the C versions only.
  add_proto qw/void vp9_highbd_iht4x4_16_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type, int bd";
  specialize qw/vp9_highbd_iht4x4_16_add/;

  add_proto qw/void vp9_highbd_iht8x8_64_add/, "const tran_low_t *input, uint8_t *dest, int dest_stride, int tx_type, int bd";
  specialize qw/vp9_highbd_iht8x8_64_add/;

  add_proto qw/void vp9_highbd_iht16x16_256_add/, "const tran_low_t *input, uint8_t *output, int pitch, int tx_type, int bd";
  specialize qw/vp9_highbd_iht16x16_256_add/;
}

#
# Encoder functions below this point.
#
if (vpx_config("CONFIG_VP9_ENCODER") eq "yes") {

# ENCODEMB INVOKE

#
# Denoiser
#
if (vpx_config("CONFIG_VP9_TEMPORAL_DENOISING") eq "yes") {
  add_proto qw/int vp9_denoiser_filter/, "const uint8_t *sig, int sig_stride, const uint8_t *mc_avg, int mc_avg_stride, uint8_t *avg, int avg_stride, int increase_denoising, BLOCK_SIZE bs, int motion_magnitude";
  specialize qw/vp9_denoiser_filter sse2/;
}

if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
  add_proto qw/int64_t vp9_block_error/, "const tran_low_t *coeff, const tran_low_t *dqcoeff, intptr_t block_size, int64_t *ssz";
  specialize qw/vp9_block_error/;

  add_proto qw/int64_t vp9_highbd_block_error/, "const tran_low_t *coeff, const tran_low_t *dqcoeff, intptr_t block_size, int64_t *ssz, int bd";
  specialize qw/vp9_highbd_block_error/, "$sse2_x86inc";

  add_proto qw/int64_t vp9_highbd_block_error_8bit/, "const tran_low_t *coeff, const tran_low_t *dqcoeff, intptr_t block_size, int64_t *ssz";
  specialize qw/vp9_highbd_block_error_8bit/, "$sse2_x86inc", "$avx_x86inc";

  add_proto qw/void vp9_quantize_fp/, "const tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan";
  specialize qw/vp9_quantize_fp/;

  add_proto qw/void vp9_quantize_fp_32x32/, "const tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan";
  specialize qw/vp9_quantize_fp_32x32/;

  add_proto qw/void vp9_fdct8x8_quant/, "const int16_t *input, int stride, tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan";
  specialize qw/vp9_fdct8x8_quant/;
} else {
  add_proto qw/int64_t vp9_block_error/, "const tran_low_t *coeff, const tran_low_t *dqcoeff, intptr_t block_size, int64_t *ssz";
  specialize qw/vp9_block_error avx2 msa/, "$sse2_x86inc";

  add_proto qw/int64_t vp9_block_error_fp/, "const int16_t *coeff, const int16_t *dqcoeff, int block_size";
  specialize qw/vp9_block_error_fp neon/, "$sse2_x86inc";

  add_proto qw/void vp9_quantize_fp/, "const tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan";
  specialize qw/vp9_quantize_fp neon sse2/, "$ssse3_x86_64_x86inc";

  add_proto qw/void vp9_quantize_fp_32x32/, "const tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan";
  specialize qw/vp9_quantize_fp_32x32/, "$ssse3_x86_64_x86inc";

  add_proto qw/void vp9_fdct8x8_quant/, "const int16_t *input, int stride, tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan";
  specialize qw/vp9_fdct8x8_quant sse2 ssse3 neon/;
}

# fdct functions

if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
  add_proto qw/void vp9_fht4x4/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_fht4x4 sse2/;

  add_proto qw/void vp9_fht8x8/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_fht8x8 sse2/;

  add_proto qw/void vp9_fht16x16/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_fht16x16 sse2/;

  add_proto qw/void vp9_fwht4x4/, "const int16_t *input, tran_low_t *output, int stride";
  specialize qw/vp9_fwht4x4/, "$mmx_x86inc";
} else {
  add_proto qw/void vp9_fht4x4/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_fht4x4 sse2 msa/;

  add_proto qw/void vp9_fht8x8/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_fht8x8 sse2 msa/;

  add_proto qw/void vp9_fht16x16/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_fht16x16 sse2 msa/;

  add_proto qw/void vp9_fwht4x4/, "const int16_t *input, tran_low_t *output, int stride";
  specialize qw/vp9_fwht4x4 msa/, "$mmx_x86inc";
}

#
# Motion search
#
add_proto qw/int vp9_full_search_sad/, "const struct macroblock *x, const struct mv *ref_mv, int sad_per_bit, int distance, const struct vp9_variance_vtable *fn_ptr, const struct mv *center_mv, struct mv *best_mv";
specialize qw/vp9_full_search_sad sse3 sse4_1/;
$vp9_full_search_sad_sse3=vp9_full_search_sadx3;
$vp9_full_search_sad_sse4_1=vp9_full_search_sadx8;

add_proto qw/int vp9_diamond_search_sad/, "const struct macroblock *x, const struct search_site_config *cfg,  struct mv *ref_mv, struct mv *best_mv, int search_param, int sad_per_bit, int *num00, const struct vp9_variance_vtable *fn_ptr, const struct mv *center_mv";
specialize qw/vp9_diamond_search_sad avx/;

add_proto qw/void vp9_temporal_filter_apply/, "uint8_t *frame1, unsigned int stride, uint8_t *frame2, unsigned int block_width, unsigned int block_height, int strength, int filter_weight, unsigned int *accumulator, uint16_t *count";
specialize qw/vp9_temporal_filter_apply sse2 msa/;

if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {

  # ENCODEMB INVOKE

  add_proto qw/void vp9_highbd_quantize_fp/, "const tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan";
  specialize qw/vp9_highbd_quantize_fp/;

  add_proto qw/void vp9_highbd_quantize_fp_32x32/, "const tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr, const int16_t *quant_ptr, const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, const int16_t *iscan";
  specialize qw/vp9_highbd_quantize_fp_32x32/;

  # fdct functions
  add_proto qw/void vp9_highbd_fht4x4/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_highbd_fht4x4/;

  add_proto qw/void vp9_highbd_fht8x8/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_highbd_fht8x8/;

  add_proto qw/void vp9_highbd_fht16x16/, "const int16_t *input, tran_low_t *output, int stride, int tx_type";
  specialize qw/vp9_highbd_fht16x16/;

  add_proto qw/void vp9_highbd_fwht4x4/, "const int16_t *input, tran_low_t *output, int stride";
  specialize qw/vp9_highbd_fwht4x4/;

  add_proto qw/void vp9_highbd_temporal_filter_apply/, "uint8_t *frame1, unsigned int stride, uint8_t *frame2, unsigned int block_width, unsigned int block_height, int strength, int filter_weight, unsigned int *accumulator, uint16_t *count";
  specialize qw/vp9_highbd_temporal_filter_apply/;

}
# End vp9_high encoder functions

#
# frame based scale
#
if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
} else {
  add_proto qw/void vp9_scale_and_extend_frame/, "const struct yv12_buffer_config *src, struct yv12_buffer_config *dst";
  specialize qw/vp9_scale_and_extend_frame ssse3/;
}

}
# end encoder functions
1;