//throws gnu.x11.extension.NotFoundException {
public Blend(String [] args)
: base(args, 255, 255)
{
about ("0.1", "test blending in RENDER",
"Stephen Tse <*****@*****.**>",
"http://escher.sourceforge.net/");
if (help_option) return;
render = new Render (display);
Picture.Format pf0 = new Picture.Format (), pf1;
Picture.Format.Direct df = pf0.direct_format ();
alpha_pixmap = new Pixmap (window, window.width, window.height, 8);
color_pixmap = new Pixmap (window, 1, 1, 24);
alpha_gc = new GC (alpha_pixmap);
color_gc = new GC (color_pixmap);
// window picture (TODO: find visual)
pf0.clear ();
pf0.set_depth (display.default_screen.root_depth ());
pf1 = render.picture_format (pf0, true);
window_picture = render.create_picture (window, pf1,
Picture.Attributes.EMPTY);
// alpha picture
pf0.clear ();
pf0.set_depth (8);
pf0.set_type (Picture.Format.Direct.TYPE);
df.set_alpha (0);
df.set_alpha_mask (0xff);
pf1 = render.picture_format (pf0, true);
alpha_picture = render.create_picture (alpha_pixmap, pf1,
Picture.Attributes.EMPTY);
// color picture
pf0.clear ();
pf0.set_depth (24);
pf0.set_type (Picture.Format.Direct.TYPE);
df.set_alpha (0);
df.set_alpha_mask (0);
df.set_red (16);
df.set_red_mask (0xff);
df.set_green (8);
df.set_green_mask (0xff);
df.set_blue (0);
df.set_blue_mask (0xff);
pf1 = render.picture_format (pf0, true);
Picture.Attributes attr = new Picture.Attributes ();
attr.set_repeat (true);
color_picture = render.create_picture (color_pixmap, pf1, attr);
}
// render opcode 17 - create glyph set
/**
* @see <a href="XRenderCreateGlyphSet.html">XRenderCreateGlyphSet</a>
*/
public GlyphSet(Render render, Picture.Format format)
: base(render.display)
{
this.render = render;
Request request = new Request(display, render.major_opcode, 17, 3);
request.write4(id);
request.write4(format.id());
display.send_request(request);
}
/**
* @see <a href="XRenderFindFormat.html">XRenderFindFormat</a>
*/
public Picture.Format picture_format(Picture.Format template,
bool must)
{
Picture.Format [] pfs = picture_formats();
for (int i = 0; i < pfs.Length; i++)
{
if (pfs [i].match(template))
{
return(pfs [i]);
}
}
if (!must)
{
return(null);
}
throw new Error("No matching: " + template);
}
// render opcode 1 - query picture formats
public Picture.Format [] picture_formats()
{
if (picture_formats_cache != null)
{
return(picture_formats_cache);
}
Request request = new Request(display, major_opcode, 1, 1);
Data reply = display.read_reply(request);
int count = reply.read4(8);
Picture.Format [] pfs = new Picture.Format [count];
for (int i = 0, offset = 32; i < count; i++)
{
pfs [i] = new Picture.Format(reply, offset);
offset += Picture.Format.LENGTH;
}
picture_formats_cache = pfs;
return(pfs);
}
/**
* @see Picture#Picture(Render, Drawable, Picture.Format, Picture.Attributes)
*/
public Picture create_picture(Drawable drawable, Picture.Format format,
Picture.Attributes attr)
{
return(new Picture(this, drawable, format, attr));
}
// render opcode 1 - query picture formats
public Picture.Format[] picture_formats()
{
if (picture_formats_cache != null)
return picture_formats_cache;
Request request = new Request (display, major_opcode, 1, 1);
Data reply = display.read_reply (request);
int count = reply.read4 (8);
Picture.Format [] pfs = new Picture.Format [count];
for (int i=0, offset=32; i<count; i++) {
pfs [i] = new Picture.Format (reply, offset);
offset += Picture.Format.LENGTH;
}
picture_formats_cache = pfs;
return pfs;
}