From 9cc90358fad972d5107cc837787192cc7c45e7e9 Mon Sep 17 00:00:00 2001 From: Vincent Povirk Date: Mon, 14 Sep 2009 16:48:03 -0500 Subject: [PATCH] gdiplus: Use the preset blend when drawing linear gradients. --- dlls/gdiplus/graphics.c | 22 +++++++++++++++++++++- 1 files changed, 21 insertions(+), 1 deletions(-) diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c index 8e58fda..eea5959 100644 --- a/dlls/gdiplus/graphics.c +++ b/dlls/gdiplus/graphics.c @@ -220,7 +220,27 @@ static ARGB blend_line_gradient(GpLineGradient* brush, REAL position) blendfac = (left_blendfac * (right_blendpos - position) + right_blendfac * (position - left_blendpos)) / range; } - return blend_colors(brush->startcolor, brush->endcolor, blendfac); + + if (brush->pblendcount == 0) + return blend_colors(brush->startcolor, brush->endcolor, blendfac); + else + { + int i=1; + ARGB left_blendcolor, right_blendcolor; + REAL left_blendpos, right_blendpos; + + /* locate the blend colors surrounding this position */ + while (blendfac > brush->pblendpos[i]) + i++; + + /* interpolate between the blend colors */ + left_blendpos = brush->pblendpos[i-1]; + left_blendcolor = brush->pblendcolor[i-1]; + right_blendpos = brush->pblendpos[i]; + right_blendcolor = brush->pblendcolor[i]; + blendfac = (blendfac - left_blendpos) / (right_blendpos - left_blendpos); + return blend_colors(left_blendcolor, right_blendcolor, blendfac); + } } static void brush_fill_path(GpGraphics *graphics, GpBrush* brush) -- 1.5.4.3