Esempi in C++ (Cpp) per variance_neon_w8

Esempio n. 1

File: variance_neon.c Progetto: lianhaidong/libvpx

unsigned int vpx_variance64x64_neon(const uint8_t *a, int a_stride,
                                    const uint8_t *b, int b_stride,
                                    unsigned int *sse) {
  int sum1, sum2;
  uint32_t sse1, sse2;

  variance_neon_w8(a, a_stride, b, b_stride, 64, 16, &sse1, &sum1);
  variance_neon_w8(a + (16 * a_stride), a_stride,
                   b + (16 * b_stride), b_stride, 64, 16,
                   &sse2, &sum2);
  sse1 += sse2;
  sum1 += sum2;

  variance_neon_w8(a + (16 * 2 * a_stride), a_stride,
                   b + (16 * 2 * b_stride), b_stride,
                   64, 16, &sse2, &sum2);
  sse1 += sse2;
  sum1 += sum2;

  variance_neon_w8(a + (16 * 3 * a_stride), a_stride,
                   b + (16 * 3 * b_stride), b_stride,
                   64, 16, &sse2, &sum2);
  *sse = sse1 + sse2;
  sum1 += sum2;
  return *sse - (((int64_t)sum1 * sum1) >> 12);  // >> 12 = / 64 * 64
}

Esempio n. 2

File: variance_neon.c Progetto: lianhaidong/libvpx

unsigned int vpx_variance32x64_neon(const uint8_t *a, int a_stride,
                                    const uint8_t *b, int b_stride,
                                    unsigned int *sse) {
  int sum1, sum2;
  uint32_t sse1, sse2;
  variance_neon_w8(a, a_stride, b, b_stride, 32, 32, &sse1, &sum1);
  variance_neon_w8(a + (32 * a_stride), a_stride,
                   b + (32 * b_stride), b_stride, 32, 32,
                   &sse2, &sum2);
  *sse = sse1 + sse2;
  sum1 += sum2;
  return *sse - (((int64_t)sum1 * sum1) >> 11);  // >> 11 = / 32 * 64
}

Esempio n. 3

File: vp8_subpixelvariance_neon.c Progetto: Andrel322/gecko-dev

static unsigned int variance8x8_neon(const uint8_t *a, int a_stride,
                                     const uint8_t *b, int b_stride,
                                     unsigned int *sse) {
  int sum;
  variance_neon_w8(a, a_stride, b, b_stride, kWidth8, kHeight8, sse, &sum);
  return *sse - (((int64_t)sum * sum) / (kWidth8 * kHeight8));
}

Esempio n. 4

File: variance_neon.c Progetto: lianhaidong/libvpx

unsigned int vpx_variance32x32_neon(const uint8_t *a, int a_stride,
                                    const uint8_t *b, int b_stride,
                                    unsigned int *sse) {
  int sum;
  variance_neon_w8(a, a_stride, b, b_stride, 32, 32, sse, &sum);
  return *sse - (((int64_t)sum * sum) >> 10);  // >> 10 = / 32 * 32
}

Esempio n. 5

File: variance_neon.c Progetto: lianhaidong/libvpx

unsigned int vpx_variance16x16_neon(const uint8_t *a, int a_stride,
                                    const uint8_t *b, int b_stride,
                                    unsigned int *sse) {
  int sum;
  variance_neon_w8(a, a_stride, b, b_stride, 16, 16, sse, &sum);
  return *sse - (((int64_t)sum * sum) >> 8);  //  >> 8 = / 16 * 16
}

Esempio n. 6

File: variance_neon.c Progetto: lianhaidong/libvpx

unsigned int vpx_variance8x8_neon(const uint8_t *a, int a_stride,
                                  const uint8_t *b, int b_stride,
                                  unsigned int *sse) {
  int sum;
  variance_neon_w8(a, a_stride, b, b_stride, 8, 8, sse, &sum);
  return *sse - (((int64_t)sum * sum) >> 6);  //  >> 6 = / 8 * 8
}

Esempio n. 7

File: variance_neon.c Progetto: lianhaidong/libvpx

void vpx_get16x16var_neon(const uint8_t *a, int a_stride,
                          const uint8_t *b, int b_stride,
                          unsigned int *sse, int *sum) {
  variance_neon_w8(a, a_stride, b, b_stride, 16, 16, sse, sum);
}