AuroraMiddleware/gtk
1
0
Fork 1
mirror of https://gitlab.gnome.org/GNOME/gtk.git synced 2024-11-05 16:20:10 +00:00
Code Issues Projects Releases Wiki Activity

x11: Upload cursor image using Cairo

Browse Source 
There's no need to write our own upload function when the cursor format
is identical to CAIRO_FORMAT_ARGB32.
This commit is contained in:
Benjamin Otte 2010-08-27 14:13:03 +02:00
parent 6607f2b794
commit 47292f28d5
1 changed files with 14 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
gdk/x11/gdkcursor-x11.c
View File

@ -592,50 +592,32 @@ create_cursor_image (GdkPixbuf *pixbuf,
gint x,
gint y)
{
guint width, height, rowstride, n_channels;
guchar *pixels, *src;
guint width, height;
XcursorImage *xcimage;
XcursorPixel *dest;
cairo_surface_t *surface;
cairo_t *cr;
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
n_channels = gdk_pixbuf_get_n_channels (pixbuf);
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
pixels = gdk_pixbuf_get_pixels (pixbuf);
xcimage = XcursorImageCreate (width, height);
xcimage->xhot = x;
xcimage->yhot = y;
dest = xcimage->pixels;
surface = cairo_image_surface_create_for_data ((guchar *) xcimage->pixels,
CAIRO_FORMAT_ARGB32,
width,
height,
width * 4);
if (n_channels == 3)
{
gint i, j;
cr = cairo_create (surface);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
for (j = 0; j < height; j++)
{
src = pixels + j * rowstride;
for (i = 0; i < width; i++)
{
*dest = (0xff << 24) | (src[0] << 16) | (src[1] << 8) | src[2];
}
src += n_channels;
dest++;
}
}
else
{
_gdk_x11_convert_to_format (pixels, rowstride,
(guchar *) dest, 4 * width,
GDK_X11_FORMAT_ARGB,
(G_BYTE_ORDER == G_BIG_ENDIAN) ?
GDK_MSB_FIRST : GDK_LSB_FIRST,
width, height);
}
cairo_surface_destroy (surface);
return xcimage;
}