cairo: use GOOD instead of BEST as the default cairo filter for scaling
The quality is good enough and the performance is much better.
https://bugs.freedesktop.org/show_bug.cgi?id=103136
diff --git a/poppler/CairoOutputDev.cc b/poppler/CairoOutputDev.cc
index bc83b80..631ab27 100644
--- a/poppler/CairoOutputDev.cc
+++ b/poppler/CairoOutputDev.cc
@@ -1970,7 +1970,7 @@
GBool interpolate)
{
if (interpolate)
- return CAIRO_FILTER_BEST;
+ return CAIRO_FILTER_GOOD;
int orig_width = cairo_image_surface_get_width (image);
int orig_height = cairo_image_surface_get_height (image);
@@ -1990,7 +1990,7 @@
if (scaled_width / orig_width >= 4 || scaled_height / orig_height >= 4)
return CAIRO_FILTER_NEAREST;
- return CAIRO_FILTER_BEST;
+ return CAIRO_FILTER_GOOD;
}
void CairoOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
@@ -2458,7 +2458,7 @@
* cairo doesn't yet do minifaction filtering causing scaled down
* images with CAIRO_FILTER_NEAREST to look really bad */
cairo_pattern_set_filter (pattern,
- interpolate ? CAIRO_FILTER_BEST : CAIRO_FILTER_FAST);
+ interpolate ? CAIRO_FILTER_GOOD : CAIRO_FILTER_FAST);
if (state->getFillColorSpace()->getMode() == csPattern) {
cairo_matrix_init_translate (&matrix, 0, scaledHeight);
@@ -3258,7 +3258,7 @@
cairo_matrix_t matrix;
int width, height;
int scaledWidth, scaledHeight;
- cairo_filter_t filter = CAIRO_FILTER_BEST;
+ cairo_filter_t filter = CAIRO_FILTER_GOOD;
RescaleDrawImage rescale;
LOG (printf ("drawImage %dx%d\n", widthA, heightA));
