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audio: use _mm_srli_si128 instead of _mm_bsrli_si128.

They're the same thing (one is generally a #define of the other), but some
toolchains don't offer the 'b' version.
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icculus committed Jan 23, 2017
1 parent 3594bf8 commit fab4501811ff3e406deaf91390cc9fff7be065d8
Showing with 2 additions and 2 deletions.
  1. +2 −2 src/audio/SDL_audiotypecvt.c
@@ -498,7 +498,7 @@ SDL_Convert_S32_to_F32_SSE2(SDL_AudioCVT *cvt, SDL_AudioFormat format)
while (i >= 4) { /* 4 * sint32 */
const __m128i ints = _mm_load_si128(mmsrc);
/* bitshift the whole register over, so _mm_cvtepi32_pd can read the top ints in the bottom of the vector. */
const __m128d doubles1 = _mm_mul_pd(_mm_cvtepi32_pd(_mm_bsrli_si128(ints, 8)), divby2147483647);
const __m128d doubles1 = _mm_mul_pd(_mm_cvtepi32_pd(_mm_srli_si128(ints, 8)), divby2147483647);
const __m128d doubles2 = _mm_mul_pd(_mm_cvtepi32_pd(ints), divby2147483647);
/* convert to float32, bitshift/or to get these into a vector to store. */
_mm_store_ps(dst, _mm_castsi128_ps(_mm_or_si128(_mm_bslli_si128(_mm_castps_si128(_mm_cvtpd_ps(doubles1)), 8), _mm_castps_si128(_mm_cvtpd_ps(doubles2)))));
@@ -723,7 +723,7 @@ SDL_Convert_F32_to_S32_SSE2(SDL_AudioCVT *cvt, SDL_AudioFormat format)
while (i >= 4) { /* 4 * float32 */
const __m128 floats = _mm_load_ps(src);
/* bitshift the whole register over, so _mm_cvtps_pd can read the top floats in the bottom of the vector. */
const __m128d doubles1 = _mm_mul_pd(_mm_cvtps_pd(_mm_castsi128_ps(_mm_bsrli_si128(_mm_castps_si128(floats), 8))), mulby2147483647);
const __m128d doubles1 = _mm_mul_pd(_mm_cvtps_pd(_mm_castsi128_ps(_mm_srli_si128(_mm_castps_si128(floats), 8))), mulby2147483647);
const __m128d doubles2 = _mm_mul_pd(_mm_cvtps_pd(floats), mulby2147483647);
_mm_store_si128(mmdst, _mm_or_si128(_mm_bslli_si128(_mm_cvtpd_epi32(doubles1), 8), _mm_cvtpd_epi32(doubles2)));
i -= 4; src += 4; mmdst++;

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