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authorBehdad Esfahbod <behdad@gnome.org>2006-12-18 02:34:53 +0000
committerBehdad Esfahbod <behdad@src.gnome.org>2006-12-18 02:34:53 +0000
commiteb12e36e8f06cd04b9f7b7b1de0c110a1e3dcb96 (patch)
tree331f54d36b8e2b99e82aecf444fe71a034578273 /pango/pangocairo-render.c
parent5c3e7af5c1718a153288a97729fa4ccaccb93b26 (diff)
downloadpango-eb12e36e8f06cd04b9f7b7b1de0c110a1e3dcb96.tar.gz
Avoid some floating-point operations by caching the y value for the
2006-12-17 Behdad Esfahbod <behdad@gnome.org> * pango/pangocairo-render.c (pango_cairo_renderer_draw_glyphs): Avoid some floating-point operations by caching the y value for the baseline, using it for glyphs having y_offset of 0.
Diffstat (limited to 'pango/pangocairo-render.c')
-rw-r--r--pango/pangocairo-render.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/pango/pangocairo-render.c b/pango/pangocairo-render.c
index 642b6a5d..48aedf95 100644
--- a/pango/pangocairo-render.c
+++ b/pango/pangocairo-render.c
@@ -196,6 +196,8 @@ pango_cairo_renderer_draw_glyphs (PangoRenderer *renderer,
int x_position = 0;
cairo_glyph_t *cairo_glyphs;
cairo_glyph_t stack_glyphs[MAX_STACK];
+ double base_x = crenderer->x_offset + (double)x / PANGO_SCALE;
+ double base_y = crenderer->y_offset + (double)y / PANGO_SCALE;
cairo_save (crenderer->cr);
if (!crenderer->do_path)
@@ -209,10 +211,10 @@ pango_cairo_renderer_draw_glyphs (PangoRenderer *renderer,
if (gi->glyph != PANGO_GLYPH_EMPTY)
{
- double cx = crenderer->x_offset +
- (double)(x + x_position + gi->geometry.x_offset) / PANGO_SCALE;
- double cy = crenderer->y_offset +
- (double)(y + gi->geometry.y_offset) / PANGO_SCALE;
+ double cx = base_x + (double)(x_position + gi->geometry.x_offset) / PANGO_SCALE;
+ double cy = gi->geometry.y_offset == 0 ?
+ base_y :
+ base_y + (double)(gi->geometry.y_offset) / PANGO_SCALE;
_pango_cairo_renderer_draw_unknown_glyph (crenderer, font, gi, cx, cy);
}
@@ -234,10 +236,10 @@ pango_cairo_renderer_draw_glyphs (PangoRenderer *renderer,
if (gi->glyph != PANGO_GLYPH_EMPTY)
{
- double cx = crenderer->x_offset +
- (double)(x + x_position + gi->geometry.x_offset) / PANGO_SCALE;
- double cy = crenderer->y_offset +
- (double)(y + gi->geometry.y_offset) / PANGO_SCALE;
+ double cx = base_x + (double)(x_position + gi->geometry.x_offset) / PANGO_SCALE;
+ double cy = gi->geometry.y_offset == 0 ?
+ base_y :
+ base_y + (double)(gi->geometry.y_offset) / PANGO_SCALE;
if (gi->glyph & PANGO_GLYPH_UNKNOWN_FLAG)
_pango_cairo_renderer_draw_unknown_glyph (crenderer, font, gi, cx, cy);