Exemplos de VP8LSubtractGreenFromBlueAndRed_C em C++ (Cpp)

Exemplo n.º 1

Arquivo: lossless_neon.c Projeto: 0109yuma/drrrbile-reader

static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) {
  const uint32_t* const end = argb_data + (num_pixels & ~3);
  const uint8x8_t shuffle = vld1_u8(kGreenShuffle);
  for (; argb_data < end; argb_data += 4) {
    const uint8x16_t argb = vld1q_u8((uint8_t*)argb_data);
    const uint8x16_t greens =
        vcombine_u8(vtbl1_u8(vget_low_u8(argb), shuffle),
                    vtbl1_u8(vget_high_u8(argb), shuffle));
    vst1q_u8((uint8_t*)argb_data, vsubq_u8(argb, greens));
  }
  // fallthrough and finish off with plain-C
  VP8LSubtractGreenFromBlueAndRed_C(argb_data, num_pixels & 3);
}

Exemplo n.º 2

Arquivo: lossless_enc_sse2.c Projeto: 03050903/godot

static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) {
  int i;
  for (i = 0; i + 4 <= num_pixels; i += 4) {
    const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]); // argb
    const __m128i A = _mm_srli_epi16(in, 8);     // 0 a 0 g
    const __m128i B = _mm_shufflelo_epi16(A, _MM_SHUFFLE(2, 2, 0, 0));
    const __m128i C = _mm_shufflehi_epi16(B, _MM_SHUFFLE(2, 2, 0, 0));  // 0g0g
    const __m128i out = _mm_sub_epi8(in, C);
    _mm_storeu_si128((__m128i*)&argb_data[i], out);
  }
  // fallthrough and finish off with plain-C
  VP8LSubtractGreenFromBlueAndRed_C(argb_data + i, num_pixels - i);
}

Exemplo n.º 3

Arquivo: lossless_enc_sse41.c Projeto: 03050903/godot

static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) {
  int i;
  const __m128i kCstShuffle = _mm_set_epi8(-1, 13, -1, 13, -1, 9, -1, 9,
                                           -1,  5, -1,  5, -1, 1, -1, 1);
  for (i = 0; i + 4 <= num_pixels; i += 4) {
    const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]);
    const __m128i in_0g0g = _mm_shuffle_epi8(in, kCstShuffle);
    const __m128i out = _mm_sub_epi8(in, in_0g0g);
    _mm_storeu_si128((__m128i*)&argb_data[i], out);
  }
  // fallthrough and finish off with plain-C
  VP8LSubtractGreenFromBlueAndRed_C(argb_data + i, num_pixels - i);
}

Exemplo n.º 4

Arquivo: lossless_enc_neon.c Projeto: BBLionel/libwebp

static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) {
  const uint32_t* const end = argb_data + (num_pixels & ~3);
#ifdef USE_VTBLQ
  const uint8x16_t shuffle = vld1q_u8(kGreenShuffle);
#else
  const uint8x8_t shuffle = vld1_u8(kGreenShuffle);
#endif
  for (; argb_data < end; argb_data += 4) {
    const uint8x16_t argb = vld1q_u8((uint8_t*)argb_data);
    const uint8x16_t greens = DoGreenShuffle(argb, shuffle);
    vst1q_u8((uint8_t*)argb_data, vsubq_u8(argb, greens));
  }
  // fallthrough and finish off with plain-C
  VP8LSubtractGreenFromBlueAndRed_C(argb_data, num_pixels & 3);
}

Exemplo n.º 5

Arquivo: dsp.lossless_sse2.c Projeto: Antranilan/Sparky

static void SubtractGreenFromBlueAndRed(uint32_t* argb_data, int num_pixels) {
  const __m128i mask = _mm_set1_epi32(0x0000ff00);
  int i;
  for (i = 0; i + 4 <= num_pixels; i += 4) {
    const __m128i in = _mm_loadu_si128((__m128i*)&argb_data[i]);
    const __m128i in_00g0 = _mm_and_si128(in, mask);     // 00g0|00g0|...
    const __m128i in_0g00 = _mm_slli_epi32(in_00g0, 8);  // 0g00|0g00|...
    const __m128i in_000g = _mm_srli_epi32(in_00g0, 8);  // 000g|000g|...
    const __m128i in_0g0g = _mm_or_si128(in_0g00, in_000g);
    const __m128i out = _mm_sub_epi8(in, in_0g0g);
    _mm_storeu_si128((__m128i*)&argb_data[i], out);
  }
  // fallthrough and finish off with plain-C
  VP8LSubtractGreenFromBlueAndRed_C(argb_data + i, num_pixels - i);
}