From 15b207139ace6ce492b948f0a5b2725c7decde2a Mon Sep 17 00:00:00 2001
From: scuri <scuri>
Date: Tue, 26 Jan 2010 03:10:43 +0000
Subject: *** empty log message ***

---
 html/en/drv/gdk.html | 14 +++++++++++++-
 src/gdk/cdgdk.c      | 35 ++++++++++++++++++++++++++++++-----
 src/gdk/cdgdk.h      |  2 +-
 3 files changed, 44 insertions(+), 7 deletions(-)

diff --git a/html/en/drv/gdk.html b/html/en/drv/gdk.html
index ea59708..e4a531b 100644
--- a/html/en/drv/gdk.html
+++ b/html/en/drv/gdk.html
@@ -84,7 +84,19 @@
 <h4>Exclusive Attributes</h4>
 <ul>
   <li>&quot;<b><font face="Courier">GC</font></b>&quot;:&nbsp; returns the GDK graphics 
-  context (get only). In Lua is returned as a user data.</li>
+  context (get only). In Lua is returned as an user data.</li>
+</ul>
+
+<ul>
+  <li>&quot;<b><font face="Courier">IMGDITHER</font></b>&quot;:&nbsp; changes 
+	how dithering is used in images when bpp&lt;=8. Can be &quot;NORMAL&quot; or &quot;NONE&quot;. 
+	Default: &quot;NONE&quot;.</li>
+</ul>
+
+<ul>
+  <li>&quot;<b><font face="Courier">IMGINTERP</font></b>&quot;:&nbsp; changes 
+	how interpolation is used in image scale. Can be &quot;BILINEAR&quot; or &quot;NEAREST&quot;. 
+	Default: &quot;NEAREST&quot;.</li>
 </ul>
 
 <ul>
diff --git a/src/gdk/cdgdk.c b/src/gdk/cdgdk.c
index 76eb3db..b0c8ea8 100644
--- a/src/gdk/cdgdk.c
+++ b/src/gdk/cdgdk.c
@@ -1163,7 +1163,7 @@ static void cdputimagerectrgba_matrix(cdCtxCanvas* ctxcanvas, int iw, int ih, co
     if (!pixbuf)
       return;
 
-    gdk_draw_pixbuf(ctxcanvas->wnd, ctxcanvas->gc, pixbuf, 0, 0, ex, ey, ew, eh, ctxcanvas->img_dither, 0, 0);
+    gdk_draw_pixbuf(ctxcanvas->wnd, ctxcanvas->gc, pixbuf, 0, 0, ex, ey, -1, -1, ctxcanvas->img_dither, 0, 0);
 
     /* reset clipping */
     gdk_region_destroy(clip_polygon);
@@ -1248,7 +1248,7 @@ static void cdputimagerectmap_matrix(cdCtxCanvas* ctxcanvas, int iw, int ih, con
     if (!pixbuf)
       return;
 
-    gdk_draw_pixbuf(ctxcanvas->wnd, ctxcanvas->gc, pixbuf, 0, 0, ex, ey, ew, eh, ctxcanvas->img_dither, 0, 0);
+    gdk_draw_pixbuf(ctxcanvas->wnd, ctxcanvas->gc, pixbuf, 0, 0, ex, ey, -1, -1, ctxcanvas->img_dither, 0, 0);
 
     /* reset clipping */
     gdk_region_destroy(clip_polygon);
@@ -1289,7 +1289,7 @@ static void cdputimagerectrgb(cdCtxCanvas *ctxcanvas, int iw, int ih, const unsi
 
   if (bw!=ew || bh!=eh)
   {
-    GdkPixbuf *pixbuf_scaled = gdk_pixbuf_scale_simple(pixbuf, ew, eh, GDK_INTERP_NEAREST);
+    GdkPixbuf *pixbuf_scaled = gdk_pixbuf_scale_simple(pixbuf, ew, eh, ctxcanvas->img_interp);
     gdk_draw_pixbuf(ctxcanvas->wnd, ctxcanvas->gc, pixbuf_scaled, 0, 0, ex, ey, -1, -1, ctxcanvas->img_dither, 0, 0);
     g_object_unref(pixbuf_scaled);
   }
@@ -1328,7 +1328,7 @@ static void cdputimagerectrgba(cdCtxCanvas *ctxcanvas, int iw, int ih, const uns
 
   if (bw!=ew || bh!=eh)
   {
-    GdkPixbuf *pixbuf_scaled = gdk_pixbuf_scale_simple(pixbuf, ew, eh, GDK_INTERP_NEAREST);
+    GdkPixbuf *pixbuf_scaled = gdk_pixbuf_scale_simple(pixbuf, ew, eh, ctxcanvas->img_interp);
     gdk_draw_pixbuf(ctxcanvas->wnd, ctxcanvas->gc, pixbuf_scaled, 0, 0, ex, ey, -1, -1, ctxcanvas->img_dither, 0, 0);
     g_object_unref(pixbuf_scaled);
   }
@@ -1367,7 +1367,7 @@ static void cdputimagerectmap(cdCtxCanvas *ctxcanvas, int iw, int ih, const unsi
 
   if (bw!=ew || bh!=eh)
   {
-    GdkPixbuf *pixbuf_scaled = gdk_pixbuf_scale_simple(pixbuf, ew, eh, GDK_INTERP_NEAREST);
+    GdkPixbuf *pixbuf_scaled = gdk_pixbuf_scale_simple(pixbuf, ew, eh, ctxcanvas->img_interp);
     gdk_draw_pixbuf(ctxcanvas->wnd, ctxcanvas->gc, pixbuf_scaled, 0, 0, ex, ey, -1, -1, ctxcanvas->img_dither, 0, 0);
     g_object_unref(pixbuf_scaled);
   }
@@ -1553,6 +1553,29 @@ static cdAttribute imgdither_attrib =
   get_imgdither_attrib
 }; 
 
+static void set_interp_attrib(cdCtxCanvas* ctxcanvas, char* data)
+{
+  if (data && cdStrEqualNoCase(data, "BILINEAR"))
+    ctxcanvas->img_interp = GDK_INTERP_BILINEAR;
+  else
+    ctxcanvas->img_interp = GDK_INTERP_NEAREST;
+}
+
+static char* get_interp_attrib(cdCtxCanvas* ctxcanvas)
+{
+  if (ctxcanvas->img_interp)
+    return "BILINEAR";
+  else
+    return "NEAREST";
+}
+
+static cdAttribute interp_attrib =
+{
+  "IMGINTERP",
+  set_interp_attrib,
+  get_interp_attrib
+}; 
+
 static char* get_gc_attrib(cdCtxCanvas *ctxcanvas)
 {
   return (char*)ctxcanvas->gc;
@@ -1626,6 +1649,8 @@ cdCtxCanvas *cdgdkCreateCanvas(cdCanvas* canvas, GdkDrawable* wnd, GdkScreen* sc
   cdRegisterAttribute(canvas, &gc_attrib);
   cdRegisterAttribute(canvas, &rotate_attrib);
   cdRegisterAttribute(canvas, &pangoversion_attrib);
+  cdRegisterAttribute(canvas, &imgdither_attrib);
+  cdRegisterAttribute(canvas, &interp_attrib);
 
   return ctxcanvas;
 }
diff --git a/src/gdk/cdgdk.h b/src/gdk/cdgdk.h
index e05e650..af3cdc0 100644
--- a/src/gdk/cdgdk.h
+++ b/src/gdk/cdgdk.h
@@ -50,7 +50,7 @@ struct _cdCtxCanvas {
   float rotate_angle;
   int rotate_center_x;
   int rotate_center_y;
-  int img_dither;
+  int img_dither, img_interp;
 
   GdkRegion* new_rgn;
   GdkRegion* clip_rgn;
-- 
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