sij/mapnik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

fix handling of alpha in fast halo renderer - refs #1298, amends e66d007627

Browse source
This commit is contained in:
Dane Springmeyer 2013-03-11 11:43:35 -07:00
parent 210840721f
commit 631923e675
1 changed files with 5 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

35
src/font_engine_freetype.cpp
View file

@ -354,33 +354,6 @@ void composite_bitmap(T & pixmap,
}
}
/*
template <typename T>
void render_bitmap(T & pixmap,
FT_Bitmap *bitmap,
unsigned rgba,
int x,
int y,
double opacity)
{
int x_max=x+bitmap->width;
int y_max=y+bitmap->rows;
int i,p,j,q;
for (i=x,p=0;i<x_max;++i,++p)
{
for (j=y,q=0;j<y_max;++j,++q)
{
int gray=bitmap->buffer[q*bitmap->width+p];
if (gray)
{
pixmap_.blendPixel2(i, j, rgba, gray, opacity);
}
}
}
}
*/
template <typename T>
void render_halo(T & pixmap,
FT_Bitmap *bitmap,
@ -388,7 +361,8 @@ void render_halo(T & pixmap,
int x,
int y,
int halo_radius,
double opacity)
double opacity,
composite_mode_e comp_op)
{
int x_max=x+bitmap->width;
int y_max=y+bitmap->rows;
@ -403,7 +377,7 @@ void render_halo(T & pixmap,
{
for (int n=-halo_radius; n <=halo_radius; ++n)
for (int m=-halo_radius;m <= halo_radius; ++m)
pixmap.blendPixel2(i+m,j+n,rgba,gray,opacity);
pixmap.composite_pixel(comp_op, i+m, j+n, rgba, gray, opacity);
}
}
}
@ -578,7 +552,8 @@ void text_renderer<T>::render(pixel_position const& pos)
bit->left,
height - bit->top,
halo_radius,
itr->properties->text_opacity);
itr->properties->text_opacity,
comp_op_);
}
}
}