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qimage_sse2.cpp

Absolute File Name:/home/qt/qt5_coco/qt5/qtbase/src/gui/image/qimage_sse2.cpp
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6bool convert_ARGB_to_ARGB_PM_inplace_sse2(QImageData *data, Qt::ImageConversionFlags)-
7{-
8 ((!(data->format == QImage::Format_ARGB32 || data->format == QImage::Format_RGBA8888)) ? qt_assert("data->format == QImage::Format_ARGB32 || data->format == QImage::Format_RGBA8888",__FILE__,52) : qt_noop());-
9-
10-
11 const int spare = data->width & 3;-
12-
13 const int pad = (data->bytes_per_line >> 2) - data->width;-
14 const int iter = data->width >> 2;-
15 int height = data->height;-
16-
17 const __m128i alphaMask = _mm_set1_epi32(0xff000000);-
18 const __m128i nullVector = _mm_setzero_si128();-
19 const __m128i half = _mm_set1_epi16(0x80);-
20 const __m128i colorMask = _mm_set1_epi32(0x00ff00ff);-
21-
22 __m128i *d = reinterpret_cast<__m128i*>(data->data);-
23 while (height--
height--Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
24 const __m128i *end = d + iter;-
25-
26 for (; d != end
d != endDescription
TRUEnever evaluated
FALSEnever evaluated
; ++d) {		0
27 const __m128i srcVector = _mm_loadu_si128(d);-
28 const __m128i srcVectorAlpha = _mm_and_si128(srcVector, alphaMask);-
29 if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, alphaMask)) == 0xffff
_mm_movemask_e...sk)) == 0xffffDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
30-
31 }
never executed: end of block
 else if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, nullVector)) == 0xffff
_mm_movemask_e...or)) == 0xffffDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
32-
33 _mm_storeu_si128(d, nullVector);-
34 }
never executed: end of block
 else {		0
35 __m128i alphaChannel = _mm_srli_epi32(srcVector, 24);-
36 alphaChannel = _mm_or_si128(alphaChannel, _mm_slli_epi32(alphaChannel, 16));-
37-
38 __m128i result;-
39 { __m128i pixelVectorAG = _mm_srli_epi16(srcVector, 8); __m128i pixelVectorRB = _mm_and_si128(srcVector, colorMask); pixelVectorAG = _mm_mullo_epi16(pixelVectorAG, alphaChannel); pixelVectorRB = _mm_mullo_epi16(pixelVectorRB, alphaChannel); pixelVectorRB = _mm_add_epi16(pixelVectorRB, _mm_srli_epi16(pixelVectorRB, 8)); pixelVectorRB = _mm_add_epi16(pixelVectorRB, half); pixelVectorAG = _mm_add_epi16(pixelVectorAG, _mm_srli_epi16(pixelVectorAG, 8)); pixelVectorAG = _mm_add_epi16(pixelVectorAG, half); pixelVectorRB = _mm_srli_epi16(pixelVectorRB, 8); pixelVectorAG = _mm_andnot_si128(colorMask, pixelVectorAG); result = _mm_or_si128(pixelVectorAG, pixelVectorRB); };-
40 result = _mm_or_si128(_mm_andnot_si128(alphaMask, result), srcVectorAlpha);-
41 _mm_storeu_si128(d, result);-
42 }
never executed: end of block
0
43 }-
44-
45 QRgb *p = reinterpret_cast<QRgb*>(d);-
46 QRgb *pe = p+spare;-
47 for (; p != pe
p != peDescription
TRUEnever evaluated
FALSEnever evaluated
; ++p) {		0
48 if (*
*p < 0x00ffffffDescription
TRUEnever evaluated
FALSEnever evaluated
p < 0x00ffffff
*p < 0x00ffffffDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
49 *
never executed: *p = 0;
p = 0;
never executed: *p = 0;
0
50 else if (*
*p < 0xff000000Description
TRUEnever evaluated
FALSEnever evaluated
p < 0xff000000
*p < 0xff000000Description
TRUEnever evaluated
FALSEnever evaluated
)		0
51 *
never executed: *p = qPremultiply(*p);
p = qPremultiply(*p);
never executed: *p = qPremultiply(*p);
0
52 }
never executed: end of block
0
53-
54 d = reinterpret_cast<__m128i*>(p+pad);-
55 }
never executed: end of block
0
56-
57 if (data->format == QImage::Format_ARGB32
data->format =...:Format_ARGB32Description
TRUEnever evaluated
FALSEnever evaluated
)		0
58 data->format = QImage::Format_ARGB32_Premultiplied;
never executed: data->format = QImage::Format_ARGB32_Premultiplied;
0
59 else-
60 data->format = QImage::Format_RGBA8888_Premultiplied;
never executed: data->format = QImage::Format_RGBA8888_Premultiplied;
0
61 return
never executed: return true;
 true;
never executed: return true;
0
62}-
63-
64-
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