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Fix rendering artifacts when Apply Zoom is disabled and bg grid isn't aligned with pixels (fix #1349)

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This commit is contained in:
David Capello 2016-12-28 12:28:43 -03:00
parent 0a68c4626d
commit 95da8a2441
1 changed files with 4 additions and 1 deletions
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5
src/render/render.cpp
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@ -1102,9 +1102,12 @@ CompositeImageFunc Render::getImageComposition(
// True if we need blending pixel by pixel. If this is false we can
// blend src+dst one time and repeat the resulting color in dst
// image n-times (where n is the zoom scale).
double intpart;
const bool finegrain =
(!m_bgZoom && (m_bgCheckedSize.w < m_proj.applyX(1) ||
m_bgCheckedSize.h < m_proj.applyY(1))) ||
m_bgCheckedSize.h < m_proj.applyY(1) ||
std::modf(double(m_bgCheckedSize.w) / m_proj.applyX(1.0), &intpart) != 0.0 ||
std::modf(double(m_bgCheckedSize.h) / m_proj.applyY(1.0), &intpart) != 0.0)) ||
(layer &&
layer->isGroup() &&
has_visible_reference_layers(static_cast<const LayerGroup*>(layer)));