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* clutter/pango/pangoclutter-render.c: (tc_get): Provide for blank

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rows/columns of pixels between adjecant glyphs in the texture cache to
avoid bilinear interpolation spillage at edges of glyphs.
This commit is contained in:
Øyvind Kolås
2007-10-16 19:14:52 +00:00
parent a7fb3a78d2
commit 1a80c688fe
2 changed files with 23 additions and 8 deletions
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21
clutter/pango/pangoclutter-render.c
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@ -86,12 +86,21 @@ tc_clear ()
static void
tc_get (tc_area *area, int width, int height)
{
int slice_height = MIN (height + TC_ROUND - 1, TC_HEIGHT) & ~(TC_ROUND - 1);
tc_slice *slice = slices + slice_height / TC_ROUND;
int slice_height;
tc_slice *slice;
area->w = width;
area->h = height;
/* Provide for blank rows/columns of pixels between adjecant glyphs in the
* texture cache to avoid bilinear interpolation spillage at edges of glyphs.
*/
width += 1;
height += 1;
slice_height = MIN (height + TC_ROUND - 1, TC_HEIGHT) & ~(TC_ROUND - 1);
slice = slices + slice_height / TC_ROUND;
width = MIN (width, TC_WIDTH);
if (!slice->name || slice->avail < width)
@ -118,10 +127,10 @@ tc_get (tc_area *area, int width, int height)
cogl_texture_bind (CGL_TEXTURE_2D, match->name);
/* We might even want to use mipmapping instead of CGL_LINEAR here
* that should allow rerendering of glyphs to look nice even at scales
* far below 50%.
*/
/* We might even want to use mipmapping instead of CGL_LINEAR here
* that should allow rerendering of glyphs to look nice even at scales
* far below 50%.
*/
cogl_texture_set_filters (CGL_TEXTURE_2D, CGL_LINEAR, CGL_NEAREST);
cogl_texture_image_2d (CGL_TEXTURE_2D,