dct.c: remove dead functions

Change-Id: Ic4ca62d315a996cba308459f95e0693ff9f6fc00
diff --git a/av1/common/av1_rtcd_defs.pl b/av1/common/av1_rtcd_defs.pl
index 61fcf52..7b21b17 100755
--- a/av1/common/av1_rtcd_defs.pl
+++ b/av1/common/av1_rtcd_defs.pl
@@ -262,14 +262,6 @@
   add_proto qw/void av1_fht32x32/, "const int16_t *input, tran_low_t *output, int stride, struct txfm_param *param";
   specialize qw/av1_fht32x32 sse2 avx2/;
 
-
-    add_proto qw/void av1_fht64x64/, "const int16_t *input, tran_low_t *output, int stride, struct txfm_param *param";
-    add_proto qw/void av1_fht32x64/, "const int16_t *input, tran_low_t *output, int stride, struct txfm_param *param";
-    add_proto qw/void av1_fht64x32/, "const int16_t *input, tran_low_t *output, int stride, struct txfm_param *param";
-    add_proto qw/void av1_fht16x64/, "const int16_t *input, tran_low_t *output, int stride, struct txfm_param *param";
-    add_proto qw/void av1_fht64x16/, "const int16_t *input, tran_low_t *output, int stride, struct txfm_param *param";
-
-
   add_proto qw/void av1_fht4x8/, "const int16_t *input, tran_low_t *output, int stride, struct txfm_param *param";
   specialize qw/av1_fht4x8 sse2/;
 
diff --git a/av1/encoder/dct.c b/av1/encoder/dct.c
index 031ab00..79f3eee 100644
--- a/av1/encoder/dct.c
+++ b/av1/encoder/dct.c
@@ -2006,284 +2006,6 @@
   for (i = 0; i < 64; ++i) output[i] = (tran_low_t)out[i];
 }
 
-void av1_fht64x64_c(const int16_t *input, tran_low_t *output, int stride,
-                    TxfmParam *txfm_param) {
-  const TX_TYPE tx_type = txfm_param->tx_type;
-  static const transform_2d FHT[] = {
-    { fdct64_col, fdct64_row },      // DCT_DCT
-    { fhalfright64, fdct64_row },    // ADST_DCT
-    { fdct64_col, fhalfright64 },    // DCT_ADST
-    { fhalfright64, fhalfright64 },  // ADST_ADST
-    { fhalfright64, fdct64_row },    // FLIPADST_DCT
-    { fdct64_col, fhalfright64 },    // DCT_FLIPADST
-    { fhalfright64, fhalfright64 },  // FLIPADST_FLIPADST
-    { fhalfright64, fhalfright64 },  // ADST_FLIPADST
-    { fhalfright64, fhalfright64 },  // FLIPADST_ADST
-    { fidtx64, fidtx64 },            // IDTX
-    { fdct64_col, fidtx64 },         // V_DCT
-    { fidtx64, fdct64_row },         // H_DCT
-    { fhalfright64, fidtx64 },       // V_ADST
-    { fidtx64, fhalfright64 },       // H_ADST
-    { fhalfright64, fidtx64 },       // V_FLIPADST
-    { fidtx64, fhalfright64 },       // H_FLIPADST
-  };
-  const transform_2d ht = FHT[tx_type];
-  tran_low_t out[4096];
-  int i, j;
-  tran_low_t temp_in[64], temp_out[64];
-  int16_t flipped_input[64 * 64];
-  maybe_flip_input(&input, &stride, 64, 64, flipped_input, tx_type);
-
-  // Columns
-  for (i = 0; i < 64; ++i) {
-    for (j = 0; j < 64; ++j) temp_in[j] = input[j * stride + i];
-    ht.cols(temp_in, temp_out);
-    for (j = 0; j < 64; ++j)
-      out[j * 64 + i] = (temp_out[j] + 1 + (temp_out[j] > 0)) >> 2;
-  }
-
-  // Rows
-  for (i = 0; i < 64; ++i) {
-    for (j = 0; j < 64; ++j) temp_in[j] = out[j + i * 64];
-    ht.rows(temp_in, temp_out);
-    for (j = 0; j < 64; ++j)
-      output[j + i * 64] =
-          (tran_low_t)((temp_out[j] + 1 + (temp_out[j] < 0)) >> 2);
-  }
-
-  // Zero out top-right 32x32 area.
-  for (int row = 0; row < 32; ++row) {
-    memset(output + row * 64 + 32, 0, 32 * sizeof(*output));
-  }
-  // Zero out the bottom 64x32 area.
-  memset(output + 32 * 64, 0, 32 * 64 * sizeof(*output));
-  // Re-pack non-zero coeffs in the first 32x32 indices.
-  for (int row = 1; row < 32; ++row) {
-    memcpy(output + row * 32, output + row * 64, 32 * sizeof(*output));
-  }
-}
-
-void av1_fht64x32_c(const int16_t *input, tran_low_t *output, int stride,
-                    TxfmParam *txfm_param) {
-  const TX_TYPE tx_type = txfm_param->tx_type;
-  static const transform_2d FHT[] = {
-    { fdct32, fdct64_row },          // DCT_DCT
-    { fhalfright32, fdct64_row },    // ADST_DCT
-    { fdct32, fhalfright64 },        // DCT_ADST
-    { fhalfright32, fhalfright64 },  // ADST_ADST
-    { fhalfright32, fdct64_row },    // FLIPADST_DCT
-    { fdct32, fhalfright64 },        // DCT_FLIPADST
-    { fhalfright32, fhalfright64 },  // FLIPADST_FLIPADST
-    { fhalfright32, fhalfright64 },  // ADST_FLIPADST
-    { fhalfright32, fhalfright64 },  // FLIPADST_ADST
-    { fidtx32, fidtx64 },            // IDTX
-    { fdct32, fidtx64 },             // V_DCT
-    { fidtx32, fdct64_row },         // H_DCT
-    { fhalfright32, fidtx64 },       // V_ADST
-    { fidtx32, fhalfright64 },       // H_ADST
-    { fhalfright32, fidtx64 },       // V_FLIPADST
-    { fidtx32, fhalfright64 },       // H_FLIPADST
-  };
-  const transform_2d ht = FHT[tx_type];
-  tran_low_t out[2048];
-  int i, j;
-  tran_low_t temp_in[64], temp_out[64];
-  const int n = 32;
-  const int n2 = 64;
-  int16_t flipped_input[32 * 64];
-  maybe_flip_input(&input, &stride, n, n2, flipped_input, tx_type);
-
-  // Columns
-  for (i = 0; i < n2; ++i) {
-    for (j = 0; j < n; ++j) {
-      temp_in[j] = (tran_low_t)fdct_round_shift(input[j * stride + i] * Sqrt2);
-    }
-    ht.cols(temp_in, temp_out);
-    for (j = 0; j < n; ++j) {
-      out[j * n2 + i] = (tran_low_t)ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
-    }
-  }
-
-  // Rows
-  for (i = 0; i < n; ++i) {
-    for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2];
-    ht.rows(temp_in, temp_out);
-    for (j = 0; j < n2; ++j) {
-      output[j + i * n2] =
-          (tran_low_t)ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
-    }
-  }
-
-  // Zero out right 32x32 area.
-  for (int row = 0; row < n; ++row) {
-    memset(output + row * n2 + n, 0, n * sizeof(*output));
-  }
-  // Re-pack non-zero coeffs in the first 32x32 indices.
-  for (int row = 1; row < 32; ++row) {
-    memcpy(output + row * 32, output + row * 64, 32 * sizeof(*output));
-  }
-}
-
-void av1_fht32x64_c(const int16_t *input, tran_low_t *output, int stride,
-                    TxfmParam *txfm_param) {
-  const TX_TYPE tx_type = txfm_param->tx_type;
-  static const transform_2d FHT[] = {
-    { fdct64_row, fdct32 },          // DCT_DCT
-    { fhalfright64, fdct32 },        // ADST_DCT
-    { fdct64_row, fhalfright32 },    // DCT_ADST
-    { fhalfright64, fhalfright32 },  // ADST_ADST
-    { fhalfright64, fdct32 },        // FLIPADST_DCT
-    { fdct64_row, fhalfright32 },    // DCT_FLIPADST
-    { fhalfright64, fhalfright32 },  // FLIPADST_FLIPADST
-    { fhalfright64, fhalfright32 },  // ADST_FLIPADST
-    { fhalfright64, fhalfright32 },  // FLIPADST_ADST
-    { fidtx64, fidtx32 },            // IDTX
-    { fdct64_row, fidtx32 },         // V_DCT
-    { fidtx64, fdct32 },             // H_DCT
-    { fhalfright64, fidtx32 },       // V_ADST
-    { fidtx64, fhalfright32 },       // H_ADST
-    { fhalfright64, fidtx32 },       // V_FLIPADST
-    { fidtx64, fhalfright32 },       // H_FLIPADST
-  };
-  const transform_2d ht = FHT[tx_type];
-  tran_low_t out[32 * 64];
-  int i, j;
-  tran_low_t temp_in[64], temp_out[64];
-  const int n = 32;
-  const int n2 = 64;
-  int16_t flipped_input[32 * 64];
-  maybe_flip_input(&input, &stride, n2, n, flipped_input, tx_type);
-
-  // Rows
-  for (i = 0; i < n2; ++i) {
-    for (j = 0; j < n; ++j) {
-      temp_in[j] = (tran_low_t)fdct_round_shift(input[i * stride + j] * Sqrt2);
-    }
-    ht.rows(temp_in, temp_out);
-    for (j = 0; j < n; ++j) {
-      out[j * n2 + i] = (tran_low_t)ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
-    }
-  }
-
-  // Columns
-  for (i = 0; i < n; ++i) {
-    for (j = 0; j < n2; ++j) temp_in[j] = out[j + i * n2];
-    ht.cols(temp_in, temp_out);
-    for (j = 0; j < n2; ++j) {
-      output[i + j * n] = (tran_low_t)ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
-    }
-  }
-
-  // Zero out the bottom 32x32 area.
-  memset(output + n * n, 0, n * n * sizeof(*output));
-  // Note: no repacking needed here.
-}
-
-void av1_fht16x64_c(const int16_t *input, tran_low_t *output, int stride,
-                    TxfmParam *txfm_param) {
-  const TX_TYPE tx_type = txfm_param->tx_type;
-  static const transform_2d FHT[] = {
-    { fdct64_col, fdct16 },     // DCT_DCT
-    { fhalfright64, fdct16 },   // ADST_DCT
-    { fdct64_col, fadst16 },    // DCT_ADST
-    { fhalfright64, fadst16 },  // ADST_ADST
-    { fhalfright64, fdct16 },   // FLIPADST_DCT
-    { fdct64_col, fadst16 },    // DCT_FLIPADST
-    { fhalfright64, fadst16 },  // FLIPADST_FLIPADST
-    { fhalfright64, fadst16 },  // ADST_FLIPADST
-    { fhalfright64, fadst16 },  // FLIPADST_ADST
-    { fidtx64, fidtx16 },       // IDTX
-    { fdct64_col, fidtx16 },    // V_DCT
-    { fidtx64, fdct16 },        // H_DCT
-    { fhalfright64, fidtx16 },  // V_ADST
-    { fidtx64, fadst16 },       // H_ADST
-    { fhalfright64, fidtx16 },  // V_FLIPADST
-    { fidtx64, fadst16 },       // H_FLIPADST
-  };
-  const transform_2d ht = FHT[tx_type];
-  const int n = 16;
-  const int n4 = 64;
-  tran_low_t out[64 * 16];
-  tran_low_t temp_in[64], temp_out[64];
-  int i, j;
-  int16_t flipped_input[64 * 16];
-  maybe_flip_input(&input, &stride, n4, n, flipped_input, tx_type);
-
-  // Rows
-  for (i = 0; i < n4; ++i) {
-    for (j = 0; j < n; ++j) temp_in[j] = input[i * stride + j];
-    ht.rows(temp_in, temp_out);
-    for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j];
-  }
-
-  // Columns
-  for (i = 0; i < n; ++i) {
-    for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4];
-    ht.cols(temp_in, temp_out);
-    for (j = 0; j < n4; ++j)
-      output[i + j * n] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
-  }
-  // Zero out the bottom 16x32 area.
-  memset(output + 2 * n * n, 0, 2 * n * n * sizeof(*output));
-  // Note: no repacking needed here.
-  // Note: overall scale factor of transform is 4 times unitary
-}
-
-void av1_fht64x16_c(const int16_t *input, tran_low_t *output, int stride,
-                    TxfmParam *txfm_param) {
-  const TX_TYPE tx_type = txfm_param->tx_type;
-  static const transform_2d FHT[] = {
-    { fdct16, fdct64_row },     // DCT_DCT
-    { fadst16, fdct64_row },    // ADST_DCT
-    { fdct16, fhalfright64 },   // DCT_ADST
-    { fadst16, fhalfright64 },  // ADST_ADST
-    { fadst16, fdct64_row },    // FLIPADST_DCT
-    { fdct16, fhalfright64 },   // DCT_FLIPADST
-    { fadst16, fhalfright64 },  // FLIPADST_FLIPADST
-    { fadst16, fhalfright64 },  // ADST_FLIPADST
-    { fadst16, fhalfright64 },  // FLIPADST_ADST
-    { fidtx16, fidtx64 },       // IDTX
-    { fdct16, fidtx64 },        // V_DCT
-    { fidtx16, fdct64_row },    // H_DCT
-    { fadst16, fidtx64 },       // V_ADST
-    { fidtx16, fhalfright64 },  // H_ADST
-    { fadst16, fidtx64 },       // V_FLIPADST
-    { fidtx16, fhalfright64 },  // H_FLIPADST
-  };
-  const transform_2d ht = FHT[tx_type];
-  const int n = 16;
-  const int n4 = 64;
-  tran_low_t out[64 * 16];
-  tran_low_t temp_in[64], temp_out[64];
-  int i, j;
-  int16_t flipped_input[64 * 16];
-  maybe_flip_input(&input, &stride, n, n4, flipped_input, tx_type);
-
-  // Columns
-  for (i = 0; i < n4; ++i) {
-    for (j = 0; j < n; ++j) temp_in[j] = input[j * stride + i];
-    ht.cols(temp_in, temp_out);
-    for (j = 0; j < n; ++j) out[j * n4 + i] = temp_out[j];
-  }
-
-  // Rows
-  for (i = 0; i < n; ++i) {
-    for (j = 0; j < n4; ++j) temp_in[j] = out[j + i * n4];
-    ht.rows(temp_in, temp_out);
-    for (j = 0; j < n4; ++j)
-      output[j + i * n4] = ROUND_POWER_OF_TWO_SIGNED(temp_out[j], 2);
-  }
-  // Zero out right 32x16 area.
-  for (int row = 0; row < n; ++row) {
-    memset(output + row * n4 + 2 * n, 0, 2 * n * sizeof(*output));
-  }
-  // Re-pack non-zero coeffs in the first 32x16 indices.
-  for (int row = 1; row < 16; ++row) {
-    memcpy(output + row * 32, output + row * 64, 32 * sizeof(*output));
-  }
-  // Note: overall scale factor of transform is 4 times unitary
-}
-
 // Forward identity transform.
 void av1_fwd_idtx_c(const int16_t *src_diff, tran_low_t *coeff, int stride,
                     int bsx, int bsy, TX_TYPE tx_type) {