Fix semi-transparent artifacts in w3m-img when used with 32-bit color (e.g. urxvt)

w3m_resizing.patch

diff --git a/w3mimg/x11/x11_w3mimg.c b/w3mimg/x11/x11_w3mimg.c
index d24213e..c534393 100644
--- a/w3mimg/x11/x11_w3mimg.c
+++ b/w3mimg/x11/x11_w3mimg.c
@@ -378,6 +378,10 @@ x11_load_image(w3mimg_op * self, W3MImage * img, char *fname, int w, int h)
        w = imlib_image_get_width();
     if (h <= 0)
        h = imlib_image_get_height();
+
+    im = imlib_create_cropped_scaled_image(0, 0, imlib_image_get_width(), imlib_image_get_height(), w, h);
+    imlib_context_set_image(im);
+
     XGetWindowAttributes(xi->display, xi->window, &attr);
     img->pixmap = (void *)XCreatePixmap(xi->display, xi->parent, w, h,
                                        attr.depth);
@@ -389,7 +393,7 @@ x11_load_image(w3mimg_op * self, W3MImage * img, char *fname, int w, int h)
     imlib_context_set_visual(attr.visual);
     imlib_context_set_colormap(attr.colormap);
     imlib_context_set_drawable((Drawable) img->pixmap);
-    imlib_render_image_on_drawable_at_size(0, 0, w, h);
+    imlib_render_image_on_drawable(0, 0);
     imlib_free_image();
 #elif defined(USE_GDKPIXBUF)
     max_anim = self->max_anim;

imlib_render_image_on_drawable_at_size() tended to leave nasty semi-transparent artifacts in 32-bit mode. Apparently, resizing an image in 32-bit mode affects the alpha channel even if there is no transparency in the image. With this patch, resizing is done in 24-bit mode (or whatever depth the original image has) before converting the image to 32-bit and rendering it on the display.