Remove WebM support (and deps libvpx and opus)

We've had many issues with WebM support and specifically the libvpx library
over the years, mostly due to its poor integration in Godot's buildsystem,
but without anyone really interested in improving this state.

With the new GDExtensions in Godot 4.0, we intend to move video decoding to
first-party extensions, and this would likely be done using something like
libvlc to expose more codecs.

Removing the `webm` module means we can remove libsimplewebm, libvpx and
opus, which we were only used for that purpose. Both libvpx and opus were
fairly complex pieces of the buildsystem, so this is a nice cleanup.

This also removes the compile-time dependency on `yasm`.

Fixes lots of compilation or non-working WebM issues which will be linked
in the PR.

1 files changed, 0 insertions, 870 deletions

diff --git a/thirdparty/libvpx/vpx_dsp/intrapred.c b/thirdparty/libvpx/vpx_dsp/intrapred.c
deleted file mode 100644
index cc4a74bd26..0000000000
--- a/thirdparty/libvpx/vpx_dsp/intrapred.c
+++ /dev/null
@@ -1,870 +0,0 @@
-/*
- *  Copyright (c) 2015 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 "./vpx_dsp_rtcd.h"
-
-#include "vpx_dsp/vpx_dsp_common.h"
-#include "vpx_mem/vpx_mem.h"
-
-#define DST(x, y) dst[(x) + (y) * stride]
-#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2)
-#define AVG2(a, b) (((a) + (b) + 1) >> 1)
-
-static INLINE void d207_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                  const uint8_t *above, const uint8_t *left) {
-  int r, c;
-  (void) above;
-  // first column
-  for (r = 0; r < bs - 1; ++r)
-    dst[r * stride] = AVG2(left[r], left[r + 1]);
-  dst[(bs - 1) * stride] = left[bs - 1];
-  dst++;
-
-  // second column
-  for (r = 0; r < bs - 2; ++r)
-    dst[r * stride] = AVG3(left[r], left[r + 1], left[r + 2]);
-  dst[(bs - 2) * stride] = AVG3(left[bs - 2], left[bs - 1], left[bs - 1]);
-  dst[(bs - 1) * stride] = left[bs - 1];
-  dst++;
-
-  // rest of last row
-  for (c = 0; c < bs - 2; ++c)
-    dst[(bs - 1) * stride + c] = left[bs - 1];
-
-  for (r = bs - 2; r >= 0; --r)
-    for (c = 0; c < bs - 2; ++c)
-      dst[r * stride + c] = dst[(r + 1) * stride + c - 2];
-}
-
-#if CONFIG_MISC_FIXES
-static INLINE void d207e_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                   const uint8_t *above, const uint8_t *left) {
-  int r, c;
-  (void) above;
-
-  for (r = 0; r < bs; ++r) {
-    for (c = 0; c < bs; ++c) {
-      dst[c] = c & 1 ? AVG3(left[(c >> 1) + r], left[(c >> 1) + r + 1],
-                            left[(c >> 1) + r + 2])
-          : AVG2(left[(c >> 1) + r], left[(c >> 1) + r + 1]);
-    }
-    dst += stride;
-  }
-}
-#endif  // CONFIG_MISC_FIXES
-
-static INLINE void d63_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                 const uint8_t *above, const uint8_t *left) {
-  int r, c;
-  int size;
-  (void)left;
-  for (c = 0; c < bs; ++c) {
-    dst[c] = AVG2(above[c], above[c + 1]);
-    dst[stride + c] = AVG3(above[c], above[c + 1], above[c + 2]);
-  }
-  for (r = 2, size = bs - 2; r < bs; r += 2, --size) {
-    memcpy(dst + (r + 0) * stride, dst + (r >> 1), size);
-    memset(dst + (r + 0) * stride + size, above[bs - 1], bs - size);
-    memcpy(dst + (r + 1) * stride, dst + stride + (r >> 1), size);
-    memset(dst + (r + 1) * stride + size, above[bs - 1], bs - size);
-  }
-}
-
-#if CONFIG_MISC_FIXES
-static INLINE void d63e_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                  const uint8_t *above, const uint8_t *left) {
-  int r, c;
-  (void) left;
-  for (r = 0; r < bs; ++r) {
-    for (c = 0; c < bs; ++c) {
-      dst[c] = r & 1 ? AVG3(above[(r >> 1) + c], above[(r >> 1) + c + 1],
-                            above[(r >> 1) + c + 2])
-          : AVG2(above[(r >> 1) + c], above[(r >> 1) + c + 1]);
-    }
-    dst += stride;
-  }
-}
-#endif  // CONFIG_MISC_FIXES
-
-static INLINE void d45_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                 const uint8_t *above, const uint8_t *left) {
-  const uint8_t above_right = above[bs - 1];
-  const uint8_t *const dst_row0 = dst;
-  int x, size;
-  (void)left;
-
-  for (x = 0; x < bs - 1; ++x) {
-    dst[x] = AVG3(above[x], above[x + 1], above[x + 2]);
-  }
-  dst[bs - 1] = above_right;
-  dst += stride;
-  for (x = 1, size = bs - 2; x < bs; ++x, --size) {
-    memcpy(dst, dst_row0 + x, size);
-    memset(dst + size, above_right, x + 1);
-    dst += stride;
-  }
-}
-
-#if CONFIG_MISC_FIXES
-static INLINE void d45e_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                  const uint8_t *above, const uint8_t *left) {
-  int r, c;
-  (void) left;
-  for (r = 0; r < bs; ++r) {
-    for (c = 0; c < bs; ++c) {
-      dst[c] = AVG3(above[r + c], above[r + c + 1],
-                    above[r + c + 1 + (r + c + 2 < bs * 2)]);
-    }
-    dst += stride;
-  }
-}
-#endif  // CONFIG_MISC_FIXES
-
-static INLINE void d117_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                  const uint8_t *above, const uint8_t *left) {
-  int r, c;
-
-  // first row
-  for (c = 0; c < bs; c++)
-    dst[c] = AVG2(above[c - 1], above[c]);
-  dst += stride;
-
-  // second row
-  dst[0] = AVG3(left[0], above[-1], above[0]);
-  for (c = 1; c < bs; c++)
-    dst[c] = AVG3(above[c - 2], above[c - 1], above[c]);
-  dst += stride;
-
-  // the rest of first col
-  dst[0] = AVG3(above[-1], left[0], left[1]);
-  for (r = 3; r < bs; ++r)
-    dst[(r - 2) * stride] = AVG3(left[r - 3], left[r - 2], left[r - 1]);
-
-  // the rest of the block
-  for (r = 2; r < bs; ++r) {
-    for (c = 1; c < bs; c++)
-      dst[c] = dst[-2 * stride + c - 1];
-    dst += stride;
-  }
-}
-
-static INLINE void d135_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                  const uint8_t *above, const uint8_t *left) {
-  int i;
-#if defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ > 7
-  // silence a spurious -Warray-bounds warning, possibly related to:
-  // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56273
-  uint8_t border[69];
-#else
-  uint8_t border[32 + 32 - 1];  // outer border from bottom-left to top-right
-#endif
-
-  // dst(bs, bs - 2)[0], i.e., border starting at bottom-left
-  for (i = 0; i < bs - 2; ++i) {
-    border[i] = AVG3(left[bs - 3 - i], left[bs - 2 - i], left[bs - 1 - i]);
-  }
-  border[bs - 2] = AVG3(above[-1], left[0], left[1]);
-  border[bs - 1] = AVG3(left[0], above[-1], above[0]);
-  border[bs - 0] = AVG3(above[-1], above[0], above[1]);
-  // dst[0][2, size), i.e., remaining top border ascending
-  for (i = 0; i < bs - 2; ++i) {
-    border[bs + 1 + i] = AVG3(above[i], above[i + 1], above[i + 2]);
-  }
-
-  for (i = 0; i < bs; ++i) {
-    memcpy(dst + i * stride, border + bs - 1 - i, bs);
-  }
-}
-
-static INLINE void d153_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                  const uint8_t *above, const uint8_t *left) {
-  int r, c;
-  dst[0] = AVG2(above[-1], left[0]);
-  for (r = 1; r < bs; r++)
-    dst[r * stride] = AVG2(left[r - 1], left[r]);
-  dst++;
-
-  dst[0] = AVG3(left[0], above[-1], above[0]);
-  dst[stride] = AVG3(above[-1], left[0], left[1]);
-  for (r = 2; r < bs; r++)
-    dst[r * stride] = AVG3(left[r - 2], left[r - 1], left[r]);
-  dst++;
-
-  for (c = 0; c < bs - 2; c++)
-    dst[c] = AVG3(above[c - 1], above[c], above[c + 1]);
-  dst += stride;
-
-  for (r = 1; r < bs; ++r) {
-    for (c = 0; c < bs - 2; c++)
-      dst[c] = dst[-stride + c - 2];
-    dst += stride;
-  }
-}
-
-static INLINE void v_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                               const uint8_t *above, const uint8_t *left) {
-  int r;
-  (void) left;
-
-  for (r = 0; r < bs; r++) {
-    memcpy(dst, above, bs);
-    dst += stride;
-  }
-}
-
-static INLINE void h_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                               const uint8_t *above, const uint8_t *left) {
-  int r;
-  (void) above;
-
-  for (r = 0; r < bs; r++) {
-    memset(dst, left[r], bs);
-    dst += stride;
-  }
-}
-
-static INLINE void tm_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                const uint8_t *above, const uint8_t *left) {
-  int r, c;
-  int ytop_left = above[-1];
-
-  for (r = 0; r < bs; r++) {
-    for (c = 0; c < bs; c++)
-      dst[c] = clip_pixel(left[r] + above[c] - ytop_left);
-    dst += stride;
-  }
-}
-
-static INLINE void dc_128_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                    const uint8_t *above, const uint8_t *left) {
-  int r;
-  (void) above;
-  (void) left;
-
-  for (r = 0; r < bs; r++) {
-    memset(dst, 128, bs);
-    dst += stride;
-  }
-}
-
-static INLINE void dc_left_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                     const uint8_t *above,
-                                     const uint8_t *left) {
-  int i, r, expected_dc, sum = 0;
-  (void) above;
-
-  for (i = 0; i < bs; i++)
-    sum += left[i];
-  expected_dc = (sum + (bs >> 1)) / bs;
-
-  for (r = 0; r < bs; r++) {
-    memset(dst, expected_dc, bs);
-    dst += stride;
-  }
-}
-
-static INLINE void dc_top_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                    const uint8_t *above, const uint8_t *left) {
-  int i, r, expected_dc, sum = 0;
-  (void) left;
-
-  for (i = 0; i < bs; i++)
-    sum += above[i];
-  expected_dc = (sum + (bs >> 1)) / bs;
-
-  for (r = 0; r < bs; r++) {
-    memset(dst, expected_dc, bs);
-    dst += stride;
-  }
-}
-
-static INLINE void dc_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
-                                const uint8_t *above, const uint8_t *left) {
-  int i, r, expected_dc, sum = 0;
-  const int count = 2 * bs;
-
-  for (i = 0; i < bs; i++) {
-    sum += above[i];
-    sum += left[i];
-  }
-
-  expected_dc = (sum + (count >> 1)) / count;
-
-  for (r = 0; r < bs; r++) {
-    memset(dst, expected_dc, bs);
-    dst += stride;
-  }
-}
-
-void vpx_he_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                            const uint8_t *above, const uint8_t *left) {
-  const int H = above[-1];
-  const int I = left[0];
-  const int J = left[1];
-  const int K = left[2];
-  const int L = left[3];
-
-  memset(dst + stride * 0, AVG3(H, I, J), 4);
-  memset(dst + stride * 1, AVG3(I, J, K), 4);
-  memset(dst + stride * 2, AVG3(J, K, L), 4);
-  memset(dst + stride * 3, AVG3(K, L, L), 4);
-}
-
-void vpx_ve_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                            const uint8_t *above, const uint8_t *left) {
-  const int H = above[-1];
-  const int I = above[0];
-  const int J = above[1];
-  const int K = above[2];
-  const int L = above[3];
-  const int M = above[4];
-  (void)left;
-
-  dst[0] = AVG3(H, I, J);
-  dst[1] = AVG3(I, J, K);
-  dst[2] = AVG3(J, K, L);
-  dst[3] = AVG3(K, L, M);
-  memcpy(dst + stride * 1, dst, 4);
-  memcpy(dst + stride * 2, dst, 4);
-  memcpy(dst + stride * 3, dst, 4);
-}
-
-void vpx_d207_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                              const uint8_t *above, const uint8_t *left) {
-  const int I = left[0];
-  const int J = left[1];
-  const int K = left[2];
-  const int L = left[3];
-  (void)above;
-  DST(0, 0) =             AVG2(I, J);
-  DST(2, 0) = DST(0, 1) = AVG2(J, K);
-  DST(2, 1) = DST(0, 2) = AVG2(K, L);
-  DST(1, 0) =             AVG3(I, J, K);
-  DST(3, 0) = DST(1, 1) = AVG3(J, K, L);
-  DST(3, 1) = DST(1, 2) = AVG3(K, L, L);
-  DST(3, 2) = DST(2, 2) =
-      DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L;
-}
-
-void vpx_d63_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                             const uint8_t *above, const uint8_t *left) {
-  const int A = above[0];
-  const int B = above[1];
-  const int C = above[2];
-  const int D = above[3];
-  const int E = above[4];
-  const int F = above[5];
-  const int G = above[6];
-  (void)left;
-  DST(0, 0) =             AVG2(A, B);
-  DST(1, 0) = DST(0, 2) = AVG2(B, C);
-  DST(2, 0) = DST(1, 2) = AVG2(C, D);
-  DST(3, 0) = DST(2, 2) = AVG2(D, E);
-              DST(3, 2) = AVG2(E, F);  // differs from vp8
-
-  DST(0, 1) =             AVG3(A, B, C);
-  DST(1, 1) = DST(0, 3) = AVG3(B, C, D);
-  DST(2, 1) = DST(1, 3) = AVG3(C, D, E);
-  DST(3, 1) = DST(2, 3) = AVG3(D, E, F);
-              DST(3, 3) = AVG3(E, F, G);  // differs from vp8
-}
-
-void vpx_d63f_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                              const uint8_t *above, const uint8_t *left) {
-  const int A = above[0];
-  const int B = above[1];
-  const int C = above[2];
-  const int D = above[3];
-  const int E = above[4];
-  const int F = above[5];
-  const int G = above[6];
-  const int H = above[7];
-  (void)left;
-  DST(0, 0) =             AVG2(A, B);
-  DST(1, 0) = DST(0, 2) = AVG2(B, C);
-  DST(2, 0) = DST(1, 2) = AVG2(C, D);
-  DST(3, 0) = DST(2, 2) = AVG2(D, E);
-              DST(3, 2) = AVG3(E, F, G);
-
-  DST(0, 1) =             AVG3(A, B, C);
-  DST(1, 1) = DST(0, 3) = AVG3(B, C, D);
-  DST(2, 1) = DST(1, 3) = AVG3(C, D, E);
-  DST(3, 1) = DST(2, 3) = AVG3(D, E, F);
-              DST(3, 3) = AVG3(F, G, H);
-}
-
-void vpx_d45_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                             const uint8_t *above, const uint8_t *left) {
-  const int A = above[0];
-  const int B = above[1];
-  const int C = above[2];
-  const int D = above[3];
-  const int E = above[4];
-  const int F = above[5];
-  const int G = above[6];
-  const int H = above[7];
-  (void)stride;
-  (void)left;
-  DST(0, 0)                                     = AVG3(A, B, C);
-  DST(1, 0) = DST(0, 1)                         = AVG3(B, C, D);
-  DST(2, 0) = DST(1, 1) = DST(0, 2)             = AVG3(C, D, E);
-  DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);
-              DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
-                          DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
-                                      DST(3, 3) = H;  // differs from vp8
-}
-
-void vpx_d45e_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                              const uint8_t *above, const uint8_t *left) {
-  const int A = above[0];
-  const int B = above[1];
-  const int C = above[2];
-  const int D = above[3];
-  const int E = above[4];
-  const int F = above[5];
-  const int G = above[6];
-  const int H = above[7];
-  (void)stride;
-  (void)left;
-  DST(0, 0)                                     = AVG3(A, B, C);
-  DST(1, 0) = DST(0, 1)                         = AVG3(B, C, D);
-  DST(2, 0) = DST(1, 1) = DST(0, 2)             = AVG3(C, D, E);
-  DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);
-              DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
-                          DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
-                                      DST(3, 3) = AVG3(G, H, H);
-}
-
-void vpx_d117_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                              const uint8_t *above, const uint8_t *left) {
-  const int I = left[0];
-  const int J = left[1];
-  const int K = left[2];
-  const int X = above[-1];
-  const int A = above[0];
-  const int B = above[1];
-  const int C = above[2];
-  const int D = above[3];
-  DST(0, 0) = DST(1, 2) = AVG2(X, A);
-  DST(1, 0) = DST(2, 2) = AVG2(A, B);
-  DST(2, 0) = DST(3, 2) = AVG2(B, C);
-  DST(3, 0)             = AVG2(C, D);
-
-  DST(0, 3) =             AVG3(K, J, I);
-  DST(0, 2) =             AVG3(J, I, X);
-  DST(0, 1) = DST(1, 3) = AVG3(I, X, A);
-  DST(1, 1) = DST(2, 3) = AVG3(X, A, B);
-  DST(2, 1) = DST(3, 3) = AVG3(A, B, C);
-  DST(3, 1) =             AVG3(B, C, D);
-}
-
-void vpx_d135_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                              const uint8_t *above, const uint8_t *left) {
-  const int I = left[0];
-  const int J = left[1];
-  const int K = left[2];
-  const int L = left[3];
-  const int X = above[-1];
-  const int A = above[0];
-  const int B = above[1];
-  const int C = above[2];
-  const int D = above[3];
-  (void)stride;
-  DST(0, 3)                                     = AVG3(J, K, L);
-  DST(1, 3) = DST(0, 2)                         = AVG3(I, J, K);
-  DST(2, 3) = DST(1, 2) = DST(0, 1)             = AVG3(X, I, J);
-  DST(3, 3) = DST(2, 2) = DST(1, 1) = DST(0, 0) = AVG3(A, X, I);
-              DST(3, 2) = DST(2, 1) = DST(1, 0) = AVG3(B, A, X);
-                          DST(3, 1) = DST(2, 0) = AVG3(C, B, A);
-                                      DST(3, 0) = AVG3(D, C, B);
-}
-
-void vpx_d153_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
-                              const uint8_t *above, const uint8_t *left) {
-  const int I = left[0];
-  const int J = left[1];
-  const int K = left[2];
-  const int L = left[3];
-  const int X = above[-1];
-  const int A = above[0];
-  const int B = above[1];
-  const int C = above[2];
-
-  DST(0, 0) = DST(2, 1) = AVG2(I, X);
-  DST(0, 1) = DST(2, 2) = AVG2(J, I);
-  DST(0, 2) = DST(2, 3) = AVG2(K, J);
-  DST(0, 3)             = AVG2(L, K);
-
-  DST(3, 0)             = AVG3(A, B, C);
-  DST(2, 0)             = AVG3(X, A, B);
-  DST(1, 0) = DST(3, 1) = AVG3(I, X, A);
-  DST(1, 1) = DST(3, 2) = AVG3(J, I, X);
-  DST(1, 2) = DST(3, 3) = AVG3(K, J, I);
-  DST(1, 3)             = AVG3(L, K, J);
-}
-
-#if CONFIG_VP9_HIGHBITDEPTH
-static INLINE void highbd_d207_predictor(uint16_t *dst, ptrdiff_t stride,
-                                         int bs, const uint16_t *above,
-                                         const uint16_t *left, int bd) {
-  int r, c;
-  (void) above;
-  (void) bd;
-
-  // First column.
-  for (r = 0; r < bs - 1; ++r) {
-    dst[r * stride] = AVG2(left[r], left[r + 1]);
-  }
-  dst[(bs - 1) * stride] = left[bs - 1];
-  dst++;
-
-  // Second column.
-  for (r = 0; r < bs - 2; ++r) {
-    dst[r * stride] = AVG3(left[r], left[r + 1], left[r + 2]);
-  }
-  dst[(bs - 2) * stride] = AVG3(left[bs - 2], left[bs - 1], left[bs - 1]);
-  dst[(bs - 1) * stride] = left[bs - 1];
-  dst++;
-
-  // Rest of last row.
-  for (c = 0; c < bs - 2; ++c)
-    dst[(bs - 1) * stride + c] = left[bs - 1];
-
-  for (r = bs - 2; r >= 0; --r) {
-    for (c = 0; c < bs - 2; ++c)
-      dst[r * stride + c] = dst[(r + 1) * stride + c - 2];
-  }
-}
-
-#if CONFIG_MISC_FIXES
-static INLINE void highbd_d207e_predictor(uint16_t *dst, ptrdiff_t stride,
-                                          int bs, const uint16_t *above,
-                                          const uint16_t *left, int bd) {
-  int r, c;
-  (void) above;
-  (void) bd;
-
-  for (r = 0; r < bs; ++r) {
-    for (c = 0; c < bs; ++c) {
-      dst[c] = c & 1 ? AVG3(left[(c >> 1) + r], left[(c >> 1) + r + 1],
-                            left[(c >> 1) + r + 2])
-          : AVG2(left[(c >> 1) + r], left[(c >> 1) + r + 1]);
-    }
-    dst += stride;
-  }
-}
-#endif  // CONFIG_MISC_FIXES
-
-static INLINE void highbd_d63_predictor(uint16_t *dst, ptrdiff_t stride,
-                                        int bs, const uint16_t *above,
-                                        const uint16_t *left, int bd) {
-  int r, c;
-  (void) left;
-  (void) bd;
-  for (r = 0; r < bs; ++r) {
-    for (c = 0; c < bs; ++c) {
-      dst[c] = r & 1 ? AVG3(above[(r >> 1) + c], above[(r >> 1) + c + 1],
-                            above[(r >> 1) + c + 2])
-          : AVG2(above[(r >> 1) + c], above[(r >> 1) + c + 1]);
-    }
-    dst += stride;
-  }
-}
-
-#define highbd_d63e_predictor highbd_d63_predictor
-
-static INLINE void highbd_d45_predictor(uint16_t *dst, ptrdiff_t stride, int bs,
-                                        const uint16_t *above,
-                                        const uint16_t *left, int bd) {
-  int r, c;
-  (void) left;
-  (void) bd;
-  for (r = 0; r < bs; ++r) {
-    for (c = 0; c < bs; ++c) {
-      dst[c] = r + c + 2 < bs * 2 ? AVG3(above[r + c], above[r + c + 1],
-                                         above[r + c + 2])
-          : above[bs * 2 - 1];
-    }
-    dst += stride;
-  }
-}
-
-#if CONFIG_MISC_FIXES
-static INLINE void highbd_d45e_predictor(uint16_t *dst, ptrdiff_t stride,
-                                         int bs, const uint16_t *above,
-                                         const uint16_t *left, int bd) {
-  int r, c;
-  (void) left;
-  (void) bd;
-  for (r = 0; r < bs; ++r) {
-    for (c = 0; c < bs; ++c) {
-      dst[c] = AVG3(above[r + c], above[r + c + 1],
-                    above[r + c + 1 + (r + c + 2 < bs * 2)]);
-    }
-    dst += stride;
-  }
-}
-#endif  // CONFIG_MISC_FIXES
-
-static INLINE void highbd_d117_predictor(uint16_t *dst, ptrdiff_t stride,
-                                         int bs, const uint16_t *above,
-                                         const uint16_t *left, int bd) {
-  int r, c;
-  (void) bd;
-
-  // first row
-  for (c = 0; c < bs; c++)
-    dst[c] = AVG2(above[c - 1], above[c]);
-  dst += stride;
-
-  // second row
-  dst[0] = AVG3(left[0], above[-1], above[0]);
-  for (c = 1; c < bs; c++)
-    dst[c] = AVG3(above[c - 2], above[c - 1], above[c]);
-  dst += stride;
-
-  // the rest of first col
-  dst[0] = AVG3(above[-1], left[0], left[1]);
-  for (r = 3; r < bs; ++r)
-    dst[(r - 2) * stride] = AVG3(left[r - 3], left[r - 2], left[r - 1]);
-
-  // the rest of the block
-  for (r = 2; r < bs; ++r) {
-    for (c = 1; c < bs; c++)
-      dst[c] = dst[-2 * stride + c - 1];
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_d135_predictor(uint16_t *dst, ptrdiff_t stride,
-                                         int bs, const uint16_t *above,
-                                         const uint16_t *left, int bd) {
-  int r, c;
-  (void) bd;
-  dst[0] = AVG3(left[0], above[-1], above[0]);
-  for (c = 1; c < bs; c++)
-    dst[c] = AVG3(above[c - 2], above[c - 1], above[c]);
-
-  dst[stride] = AVG3(above[-1], left[0], left[1]);
-  for (r = 2; r < bs; ++r)
-    dst[r * stride] = AVG3(left[r - 2], left[r - 1], left[r]);
-
-  dst += stride;
-  for (r = 1; r < bs; ++r) {
-    for (c = 1; c < bs; c++)
-      dst[c] = dst[-stride + c - 1];
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_d153_predictor(uint16_t *dst, ptrdiff_t stride,
-                                         int bs, const uint16_t *above,
-                                         const uint16_t *left, int bd) {
-  int r, c;
-  (void) bd;
-  dst[0] = AVG2(above[-1], left[0]);
-  for (r = 1; r < bs; r++)
-    dst[r * stride] = AVG2(left[r - 1], left[r]);
-  dst++;
-
-  dst[0] = AVG3(left[0], above[-1], above[0]);
-  dst[stride] = AVG3(above[-1], left[0], left[1]);
-  for (r = 2; r < bs; r++)
-    dst[r * stride] = AVG3(left[r - 2], left[r - 1], left[r]);
-  dst++;
-
-  for (c = 0; c < bs - 2; c++)
-    dst[c] = AVG3(above[c - 1], above[c], above[c + 1]);
-  dst += stride;
-
-  for (r = 1; r < bs; ++r) {
-    for (c = 0; c < bs - 2; c++)
-      dst[c] = dst[-stride + c - 2];
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_v_predictor(uint16_t *dst, ptrdiff_t stride,
-                                      int bs, const uint16_t *above,
-                                      const uint16_t *left, int bd) {
-  int r;
-  (void) left;
-  (void) bd;
-  for (r = 0; r < bs; r++) {
-    memcpy(dst, above, bs * sizeof(uint16_t));
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_h_predictor(uint16_t *dst, ptrdiff_t stride,
-                                      int bs, const uint16_t *above,
-                                      const uint16_t *left, int bd) {
-  int r;
-  (void) above;
-  (void) bd;
-  for (r = 0; r < bs; r++) {
-    vpx_memset16(dst, left[r], bs);
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_tm_predictor(uint16_t *dst, ptrdiff_t stride,
-                                       int bs, const uint16_t *above,
-                                       const uint16_t *left, int bd) {
-  int r, c;
-  int ytop_left = above[-1];
-  (void) bd;
-
-  for (r = 0; r < bs; r++) {
-    for (c = 0; c < bs; c++)
-      dst[c] = clip_pixel_highbd(left[r] + above[c] - ytop_left, bd);
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_dc_128_predictor(uint16_t *dst, ptrdiff_t stride,
-                                           int bs, const uint16_t *above,
-                                           const uint16_t *left, int bd) {
-  int r;
-  (void) above;
-  (void) left;
-
-  for (r = 0; r < bs; r++) {
-    vpx_memset16(dst, 128 << (bd - 8), bs);
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_dc_left_predictor(uint16_t *dst, ptrdiff_t stride,
-                                            int bs, const uint16_t *above,
-                                            const uint16_t *left, int bd) {
-  int i, r, expected_dc, sum = 0;
-  (void) above;
-  (void) bd;
-
-  for (i = 0; i < bs; i++)
-    sum += left[i];
-  expected_dc = (sum + (bs >> 1)) / bs;
-
-  for (r = 0; r < bs; r++) {
-    vpx_memset16(dst, expected_dc, bs);
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_dc_top_predictor(uint16_t *dst, ptrdiff_t stride,
-                                           int bs, const uint16_t *above,
-                                           const uint16_t *left, int bd) {
-  int i, r, expected_dc, sum = 0;
-  (void) left;
-  (void) bd;
-
-  for (i = 0; i < bs; i++)
-    sum += above[i];
-  expected_dc = (sum + (bs >> 1)) / bs;
-
-  for (r = 0; r < bs; r++) {
-    vpx_memset16(dst, expected_dc, bs);
-    dst += stride;
-  }
-}
-
-static INLINE void highbd_dc_predictor(uint16_t *dst, ptrdiff_t stride,
-                                       int bs, const uint16_t *above,
-                                       const uint16_t *left, int bd) {
-  int i, r, expected_dc, sum = 0;
-  const int count = 2 * bs;
-  (void) bd;
-
-  for (i = 0; i < bs; i++) {
-    sum += above[i];
-    sum += left[i];
-  }
-
-  expected_dc = (sum + (count >> 1)) / count;
-
-  for (r = 0; r < bs; r++) {
-    vpx_memset16(dst, expected_dc, bs);
-    dst += stride;
-  }
-}
-#endif  // CONFIG_VP9_HIGHBITDEPTH
-
-// This serves as a wrapper function, so that all the prediction functions
-// can be unified and accessed as a pointer array. Note that the boundary
-// above and left are not necessarily used all the time.
-#define intra_pred_sized(type, size) \
-  void vpx_##type##_predictor_##size##x##size##_c(uint8_t *dst, \
-                                                  ptrdiff_t stride, \
-                                                  const uint8_t *above, \
-                                                  const uint8_t *left) { \
-    type##_predictor(dst, stride, size, above, left); \
-  }
-
-#if CONFIG_VP9_HIGHBITDEPTH
-#define intra_pred_highbd_sized(type, size) \
-  void vpx_highbd_##type##_predictor_##size##x##size##_c( \
-      uint16_t *dst, ptrdiff_t stride, const uint16_t *above, \
-      const uint16_t *left, int bd) { \
-    highbd_##type##_predictor(dst, stride, size, above, left, bd); \
-  }
-
-#define intra_pred_allsizes(type) \
-  intra_pred_sized(type, 4) \
-  intra_pred_sized(type, 8) \
-  intra_pred_sized(type, 16) \
-  intra_pred_sized(type, 32) \
-  intra_pred_highbd_sized(type, 4) \
-  intra_pred_highbd_sized(type, 8) \
-  intra_pred_highbd_sized(type, 16) \
-  intra_pred_highbd_sized(type, 32)
-
-#define intra_pred_no_4x4(type) \
-  intra_pred_sized(type, 8) \
-  intra_pred_sized(type, 16) \
-  intra_pred_sized(type, 32) \
-  intra_pred_highbd_sized(type, 4) \
-  intra_pred_highbd_sized(type, 8) \
-  intra_pred_highbd_sized(type, 16) \
-  intra_pred_highbd_sized(type, 32)
-
-#else
-#define intra_pred_allsizes(type) \
-  intra_pred_sized(type, 4) \
-  intra_pred_sized(type, 8) \
-  intra_pred_sized(type, 16) \
-  intra_pred_sized(type, 32)
-
-#define intra_pred_no_4x4(type) \
-  intra_pred_sized(type, 8) \
-  intra_pred_sized(type, 16) \
-  intra_pred_sized(type, 32)
-#endif  // CONFIG_VP9_HIGHBITDEPTH
-
-intra_pred_no_4x4(d207)
-intra_pred_no_4x4(d63)
-intra_pred_no_4x4(d45)
-#if CONFIG_MISC_FIXES
-intra_pred_allsizes(d207e)
-intra_pred_allsizes(d63e)
-intra_pred_no_4x4(d45e)
-#endif
-intra_pred_no_4x4(d117)
-intra_pred_no_4x4(d135)
-intra_pred_no_4x4(d153)
-intra_pred_allsizes(v)
-intra_pred_allsizes(h)
-intra_pred_allsizes(tm)
-intra_pred_allsizes(dc_128)
-intra_pred_allsizes(dc_left)
-intra_pred_allsizes(dc_top)
-intra_pred_allsizes(dc)
-#undef intra_pred_allsizes