[directfb-dev] [PATCH] XDirectFB proper ARGB cursor support

[Ville Syrj�l�]

This patch teaches XDirectFB to use the XRender ARGB cursor. Really sweet
looking stuff :) I tried not to mess up the regular cursor/shadow code in
the process.

-- 
Ville Syrj�l�
[EMAIL PROTECTED]
http://www.sci.fi/~syrjala/

--- XDirectFB/xc/programs/Xserver/hw/directfb/directfbCursor.c  Mon Jan 20 23:36:00 
2003
+++ XDirectFB/xc/programs/Xserver/hw/directfb/directfbCursor.c  Thu Feb 13 09:49:11 
+2003
@@ -59,14 +59,16 @@
   width  = pCursor->bits->width;
   height = pCursor->bits->height;
 
-  /* add shadow */
-  full_width  = width  + 4;
-  full_height = height + 4;
-
-  /* allocate shadow data */
-  shadow_data = alloca (full_width * full_height);
-  memset (shadow_data, 0, full_width * full_height);
+  full_width  = width;
+  full_height = height;
 
+  if (!pCursor->bits->argb)
+    {
+      /* add shadow */
+      full_width  +=  + 4;
+      full_height += + 4;
+    }
+  
   /* fill surface description for cursor shape */
   dsc.flags       = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT;
   dsc.width       = full_width;
@@ -90,6 +92,34 @@
       return NULL;
     }
 
+  if (pCursor->bits->argb)
+    {
+      CARD32 *src = pCursor->bits->argb;
+      dst = data;
+
+      /* render cursor image */
+      for (y=0; y<height; y++)
+        {
+          for (x=0; x<width; x++)
+            {
+              dst[x] = src[x];
+            }
+
+            /* next line */
+            src += width;
+            dst += pitch / 4;
+        }
+
+      /* unlock before returning */
+      surface->Unlock (surface);
+
+      return surface;
+    }
+
+  /* allocate shadow data */
+  shadow_data = alloca (full_width * full_height);
+  memset (shadow_data, 0, full_width * full_height);
+
   /* calculate foreground/background pixel values for ARGB */
   colors[0] = (pCursor->backRed   & 0xff00) << 8 |
               (pCursor->backGreen & 0xff00)      |