diff options
Diffstat (limited to 'src/gui/painting/qdrawhelper.cpp')
| -rw-r--r-- | src/gui/painting/qdrawhelper.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp index a325ee923e..8729640a80 100644 --- a/src/gui/painting/qdrawhelper.cpp +++ b/src/gui/painting/qdrawhelper.cpp @@ -2814,10 +2814,16 @@ static const QRgba64 *QT_FASTCALL fetchTransformedBilinear64(QRgba64 *buffer, co sbuf2[i * 2 + 1] = ((const uint*)s2)[x2]; fx += fdx; } + int fastLen; + if (fdx > 0) + fastLen = qMin(len, int((image_x2 - (fx >> 16)) / data->m11)); + else + fastLen = qMin(len, int((image_x1 - (fx >> 16)) / data->m11)); + fastLen -= 3; const __m128i v_fdx = _mm_set1_epi32(fdx*4); __m128i v_fx = _mm_setr_epi32(fx, fx + fdx, fx + fdx + fdx, fx + fdx + fdx + fdx); - for (; i < len-3; i+=4) { + for (; i < fastLen; i += 4) { int offset = _mm_extract_epi16(v_fx, 1); sbuf1[i * 2 + 0] = ((const uint*)s1)[offset]; sbuf1[i * 2 + 1] = ((const uint*)s1)[offset + 1]; |