diff options
| author | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2015-04-13 16:06:57 +0200 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2015-04-16 19:24:06 +0000 |
| commit | 964ccc58534aac436529007000d1c38d76c88834 (patch) | |
| tree | d452d03dabe7c109527987b9f9385de5374c1b12 /src/gui/painting/qdrawingprimitive_sse2_p.h | |
| parent | 365c63e7b177701c0bf80a7cb138b7559b92f350 (diff) | |
Remove separate SSE4 unpremultiply function
Merges the SSE4 specific unpremultiply with the normal version, and
adds a SSE2 fallback. There was no reason to split the two since
compile time options will ensure the right version is inlined.
Also adds short-cut for 0 and 255 values.
Change-Id: Ie5aa262f6964219fd3062d4a498f697cf79a4595
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/gui/painting/qdrawingprimitive_sse2_p.h')
| -rw-r--r-- | src/gui/painting/qdrawingprimitive_sse2_p.h | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/src/gui/painting/qdrawingprimitive_sse2_p.h b/src/gui/painting/qdrawingprimitive_sse2_p.h index 4d0790a502..fbee06e157 100644 --- a/src/gui/painting/qdrawingprimitive_sse2_p.h +++ b/src/gui/painting/qdrawingprimitive_sse2_p.h @@ -236,25 +236,4 @@ QT_END_NAMESPACE #endif // __SSE2__ -QT_BEGIN_NAMESPACE -#if QT_COMPILER_SUPPORTS_HERE(SSE4_1) -QT_FUNCTION_TARGET(SSE4_1) -inline QRgb qUnpremultiply_sse4(QRgb p) -{ - const uint alpha = qAlpha(p); - const uint invAlpha = qt_inv_premul_factor[alpha]; - const __m128i via = _mm_set1_epi32(invAlpha); - const __m128i vr = _mm_set1_epi32(0x8000); - __m128i vl = _mm_cvtepu8_epi32(_mm_cvtsi32_si128(p)); - vl = _mm_mullo_epi32(vl, via); - vl = _mm_add_epi32(vl, vr); - vl = _mm_srai_epi32(vl, 16); - vl = _mm_insert_epi32(vl, alpha, 3); - vl = _mm_packus_epi32(vl, _mm_setzero_si128()); - vl = _mm_packus_epi16(vl, _mm_setzero_si128()); - return _mm_cvtsi128_si32(vl); -} -#endif -QT_END_NAMESPACE - #endif // QDRAWINGPRIMITIVE_SSE2_P_H |