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radial fix, little mesh patch optimisation

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This commit is contained in:
SalnikovDE
2021-09-01 11:35:34 +03:00
parent bcc1801edb
commit e75b9dd848
2 changed files with 59 additions and 30 deletions
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30
DesktopEditor/agg-2.4/include/test_grads/custom_gradients.h
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@ -880,15 +880,31 @@ namespace agg
xmax_curve = xmin_curve = start_p.x;
ymax_curve = ymin_curve = start_p.y;
precalc = std::vector<std::vector<ColorT>>(RES, std::vector<ColorT>(RES, {0, 0, 0, 0}));
for (; u <= 1; u += delta )
/*
* Небольшая оптимизация основанная на том, что данная фигура не выходит за границы своих опорных точек.
* */
for (int i = 0; i < 4; i++)
{
for (v = 0; v <= 1; v += delta)
for (int j = 0; j < 4; j++)
{
auto p = get_p_curve(u, v);
xmax_curve = std::max(p.x, xmax_curve);
ymax_curve = std::max(p.y, ymax_curve);
xmin_curve = std::min(p.x, xmin_curve);
ymin_curve = std::min(p.y, ymin_curve);
if (m_oGradientInfo.shading.patch[i][j].x > xmax_curve)
{
xmax_curve = m_oGradientInfo.shading.patch[i][j].x;
}
if (m_oGradientInfo.shading.patch[i][j].y > ymax_curve)
{
ymax_curve = m_oGradientInfo.shading.patch[i][j].y;
}
if (m_oGradientInfo.shading.patch[i][j].x < xmin_curve)
{
xmin_curve = m_oGradientInfo.shading.patch[i][j].x;
}
if (m_oGradientInfo.shading.patch[i][j].y < ymin_curve)
{
ymin_curve = m_oGradientInfo.shading.patch[i][j].y;
}
}
}
int nRES = (int)std::max(ymax - ymin, xmax - xmin);