Attachment 2971 Details for Bug 4172 – Patch

[patch] Patch

pattern-fix.diff (text/plain), 1.37 KB, created by Billy Biggs on 2005-08-21 14:02:12 UTC

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Creator: Billy Biggs

Created: 2005-08-21 14:02:12 UTC

Size: 1.37 KB

patch

obsolete

>Index: src/cairo-pattern.c
>===================================================================
>RCS file: /cvs/cairo/cairo/src/cairo-pattern.c,v
>retrieving revision 1.59
>diff -p -u -r1.59 cairo-pattern.c
>--- src/cairo-pattern.c	19 Aug 2005 19:08:42 -0000	1.59
>+++ src/cairo-pattern.c	21 Aug 2005 20:50:09 -0000
>@@ -840,9 +840,9 @@ _cairo_pattern_shader_gaussian (unsigned
> 				cairo_fixed_t factor,
> 				uint32_t      *pixel)
> {
>-    double f = ((double) factor) / 65536.0;
>+    double f = _cairo_fixed_to_double (factor);
>     
>-    factor = (cairo_fixed_t) (((exp (f * f) - 1.0) / E_MINUS_ONE) * 65536);
>+    factor = _cairo_fixed_from_double ((exp (f * f) - 1.0) / E_MINUS_ONE);
>     
>     *pixel = ((INTERPOLATE_COLOR_LINEAR (color0[3], color1[3], factor) << 24) |
> 	      (INTERPOLATE_COLOR_LINEAR (color0[0], color1[0], factor) << 16) |
>@@ -1068,7 +1068,7 @@ _cairo_image_data_set_linear (cairo_line
> 	    
> 	    factor = ((dx * qx + dy * qy) - start) * scale;
> 
>-	    _cairo_pattern_calc_color_at_pixel (&op, factor * 65536, pixels++);
>+	    _cairo_pattern_calc_color_at_pixel (&op, _cairo_fixed_from_double (factor), pixels++);
> 	}
>     }
> 
>@@ -1251,7 +1251,7 @@ _cairo_image_data_set_radial (cairo_radi
> 		}
> 	    }
> 
>-	    _cairo_pattern_calc_color_at_pixel (&op, factor * 65536, pixels++);
>+	    _cairo_pattern_calc_color_at_pixel (&op, _cairo_fixed_from_double (factor), pixels++);
> 	}
>     }
>

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