From: GiWoong Kim <giwoong.kim@samsung.com>
Date: Tue, 19 Nov 2013 05:24:09 +0000 (+0900)
Subject: skin: no need to set SWT interpolation on Windows/MacOS
X-Git-Tag: Tizen_Studio_1.3_Release_p2.3.1~589^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=100e0729497e4e4b2fe7b069735beb3ded3b5197;p=sdk%2Femulator%2Fqemu.git

skin: no need to set SWT interpolation on Windows/MacOS

On Ubuntu, when drawing the skin image stretched with an
interpolation algorithm, the edges of the image are faded.
This problem is not occured at Windows or MacOS.

Change-Id: I4b38ab3cf53c30ff41a039e878b326ef557aafe6
Signed-off-by: GiWoong Kim <giwoong.kim@samsung.com>
---

diff --git a/tizen/src/skin/client/src/org/tizen/emulator/skin/layout/SkinPatches.java b/tizen/src/skin/client/src/org/tizen/emulator/skin/layout/SkinPatches.java
index 85876803d3..7d44500c07 100644
--- a/tizen/src/skin/client/src/org/tizen/emulator/skin/layout/SkinPatches.java
+++ b/tizen/src/skin/client/src/org/tizen/emulator/skin/layout/SkinPatches.java
@@ -37,6 +37,7 @@ import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.graphics.RGB;
 import org.eclipse.swt.widgets.Display;
 import org.tizen.emulator.skin.log.SkinLogger;
+import org.tizen.emulator.skin.util.SwtUtil;
 
 public class SkinPatches {
 	private Logger logger =
@@ -99,14 +100,28 @@ public class SkinPatches {
 		Image patchedImage = new Image(display,
 				patchedImageWidth, patchedImageHeight);
 
-		// TODO: copy alphaData
 		GC gc = new GC(patchedImage);
-		gc.setInterpolation(SWT.NONE);
+		if (SwtUtil.isLinuxPlatform() == true) {
+			/*
+			* Bug in Cairo.  When drawing the image stretched with an interpolation
+			* algorithm, the edges of the image are faded.  This is not a bug, but
+			* it is not desired.  To avoid the faded edges, it should be possible to
+			* use cairo_pattern_set_extend() to set the pattern extend to either
+			* CAIRO_EXTEND_REFLECT or CAIRO_EXTEND_PAD, but these are not implemented
+			* in some versions of cairo (1.2.x) and have bugs in others (in 1.4.2 it
+			* draws with black edges).  The fix is to implement CAIRO_EXTEND_REFLECT
+			* by creating an image that is 3 times bigger than the original, drawing
+			* the original image in every quadrant (with an appropriate transform) and
+			* use this image as the pattern.
+			*/
+			gc.setInterpolation(SWT.NONE);
+		}
 
 		gc.setBackground(display.getSystemColor(SWT.COLOR_MAGENTA));
 		gc.fillRectangle(0, 0, patchedImageWidth, patchedImageHeight);
 
 		/* top side */
+		// TODO: copy alphaData
 		gc.drawImage(imageLT, 0, 0);
 		gc.drawImage(imageT, 0, 0, imageT.getImageData().width, imageT.getImageData().height,
 				patchWidth, 0, centerPatchWidth, patchHeight);