From: handa <handa>
Date: Mon, 16 Jan 2006 06:45:15 +0000 (+0000)
Subject: (gd_render): Use gdImageColorResolveAlpha instead of
X-Git-Tag: REL-1-3-1~9
X-Git-Url: http://git.chise.org/gitweb/?a=commitdiff_plain;h=2f0a893bca3729169d0c14455f24e2d1869e5edb;p=m17n%2Fm17n-lib.git

(gd_render): Use gdImageColorResolveAlpha instead of
simulating anti-aliasing.
---

diff --git a/src/m17n-gd.c b/src/m17n-gd.c
index 981ccf5..97a5351 100644
--- a/src/m17n-gd.c
+++ b/src/m17n-gd.c
@@ -324,24 +324,13 @@ gd_render (MDrawWindow win, int x, int y,
 	  {
 	    xoff = x + ft_face->glyph->bitmap_left + from->xoff;
 	    for (j = 0; j < width; j++, xoff++)
-	      if (bmp[j])
+	      if (bmp[j] > 0)
 		{
-		  int f = bmp[j] >> 5;
 		  int pixel1 = pixel;
+		  int alpha = gdAlphaTransparent * (255 - bmp[j]) / 255;
 
-		  if (f < 7)
-		    {
-		      int r1, g1, b1, color1;
-
-		      pixel1 = gdImageGetPixel (img, xoff, yoff);
-		      r1 = gdImageRed (img, pixel1);
-		      g1 = gdImageGreen (img, pixel1);
-		      b1 = gdImageBlue (img, pixel1);
-		      color1 = ((((r * f + r1 * (7 - f)) / 7) << 16)
-				| (((g * f + g1 * (7 - f)) / 7) << 8)
-				| ((b * f + b1 * (7 - f)) / 7));
-		      pixel1 = RESOLVE_COLOR (img, color1);
-		    }
+		  if (alpha > 0)
+		    pixel1 = gdImageColorResolveAlpha (img, r, g, b, alpha);
 		  gdImageSetPixel (img, xoff, yoff, pixel1);
 		}
 	  }