Smooth image scaling for 64bit images

Adds support for smooth scaling 64bit images.

Task-number: QTBUG-45858
Change-Id: If46030fb8e7d684159f852a3b8266a74e5e6700c
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

1 files changed, 0 insertions, 37 deletions

diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index 4b68c22e95..98baffc740 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -2277,43 +2277,6 @@ static inline uint interpolate_4_pixels_16(uint tl, uint tr, uint bl, uint br, u
 }
 #endif
 
-#if defined(__SSE2__)
-static inline QRgba64 interpolate_4_pixels_rgb64(const QRgba64 t[], const QRgba64 b[], uint distx, uint disty)
-{
-    __m128i vt = _mm_loadu_si128((const __m128i*)t);
-    if (disty) {
-       __m128i vb = _mm_loadu_si128((const __m128i*)b);
-        vt = _mm_mulhi_epu16(vt, _mm_set1_epi16(0x10000 - disty));
-        vb = _mm_mulhi_epu16(vb, _mm_set1_epi16(disty));
-        vt = _mm_add_epi16(vt, vb);
-    }
-    if (distx) {
-        const __m128i vdistx = _mm_shufflelo_epi16(_mm_cvtsi32_si128(distx), _MM_SHUFFLE(0, 0, 0, 0));
-        const __m128i vidistx = _mm_shufflelo_epi16(_mm_cvtsi32_si128(0x10000 - distx), _MM_SHUFFLE(0, 0, 0, 0));
-        vt = _mm_mulhi_epu16(vt, _mm_unpacklo_epi64(vidistx, vdistx));
-        vt = _mm_add_epi16(vt, _mm_srli_si128(vt, 8));
-    }
-#ifdef Q_PROCESSOR_X86_64
-    return QRgba64::fromRgba64(_mm_cvtsi128_si64(vt));
-#else
-    QRgba64 out;
-    _mm_storel_epi64((__m128i*)&out, vt);
-    return out;
-#endif
-}
-#else
-static inline QRgba64 interpolate_4_pixels_rgb64(const QRgba64 t[], const QRgba64 b[], uint distx, uint disty)
-{
-    const uint dx = distx>>8;
-    const uint dy = disty>>8;
-    const uint idx = 256 - dx;
-    const uint idy = 256 - dy;
-    QRgba64 xtop = interpolate256(t[0], idx, t[1], dx);
-    QRgba64 xbot = interpolate256(b[0], idx, b[1], dx);
-    return interpolate256(xtop, idy, xbot, dy);
-}
-#endif
-
 template<TextureBlendType blendType>
 void fetchTransformedBilinear_pixelBounds(int max, int l1, int l2, int &v1, int &v2);