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| author | Olivier Goffart <olivier.goffart@nokia.com> | 2010-09-02 20:14:30 (GMT) |
|---|---|---|
| committer | Olivier Goffart <olivier.goffart@nokia.com> | 2010-09-03 11:41:21 (GMT) |
| commit | 344ae27327b3fd36b0288636f41d73d91694eb02 (patch) | |
| tree | dc75c4a0dfea5d76abee4749e9a61841630154bd | |
| parent | 200d1743dcdacf1036384f746046e55d91ccd918 (diff) | |
| download | Qt-344ae27327b3fd36b0288636f41d73d91694eb02.zip Qt-344ae27327b3fd36b0288636f41d73d91694eb02.tar.gz Qt-344ae27327b3fd36b0288636f41d73d91694eb02.tar.bz2 | |
qdrawhelper: micro optimisation in fetchTransformBilinear
move the -1 out of the loop
Reviewed-by: Benjamin Poulain
| -rw-r--r-- | src/gui/painting/qdrawhelper.cpp | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp index 46c94e0..cf487b5 100644 --- a/src/gui/painting/qdrawhelper.cpp +++ b/src/gui/painting/qdrawhelper.cpp @@ -684,8 +684,8 @@ Q_STATIC_TEMPLATE_FUNCTION inline void fetchTransformedBilinear_pixelBounds(int } else { if (v1 < l1) { v2 = v1 = l1; - } else if (v1 >= l2 - 1) { - v2 = v1 = l2 - 1; + } else if (v1 >= l2) { + v2 = v1 = l2; } else { v2 = v1 + 1; } @@ -715,8 +715,8 @@ const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator * int image_x1 = data->texture.x1; int image_y1 = data->texture.y1; - int image_x2 = data->texture.x2; - int image_y2 = data->texture.y2; + int image_x2 = data->texture.x2 - 1; + int image_y2 = data->texture.y2 - 1; const qreal cx = x + 0.5; const qreal cy = y + 0.5; @@ -763,9 +763,9 @@ const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator * x %= image_width; if (x < 0) x += image_width; } else { - lim = qMin(count, image_x2-x); + lim = qMin(count, image_x2-x+1); if (x < image_x1) { - Q_ASSERT(x < image_x2); + Q_ASSERT(x <= image_x2); uint t = fetch(s1, image_x1, data->texture.colorTable); uint b = fetch(s2, image_x1, data->texture.colorTable); quint32 rb = (((t & 0xff00ff) * idisty + (b & 0xff00ff) * disty) >> 8) & 0xff00ff; @@ -818,7 +818,7 @@ const uint * QT_FASTCALL fetchTransformedBilinear(uint *buffer, const Operator * if (blendType == BlendTransformedBilinearTiled) { if (x >= image_width) x -= image_width; } else { - x = qMin(x, image_x2 - 1); + x = qMin(x, image_x2); } uint t = fetch(s1, x, data->texture.colorTable); |