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docs: Add an explicit example of image loading

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Using GdkPixbuf, which is what we expect people to use anyway.
This commit is contained in:
Emmanuele Bassi 2014-04-26 20:50:43 +01:00
parent 10ff9a4679
commit 0255b5a133
1 changed files with 22 additions and 0 deletions
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22
clutter/clutter-image.c
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@ -209,6 +209,28 @@ clutter_image_new (void)
* *
* The image data is copied in texture memory. * The image data is copied in texture memory.
* *
* The image data is expected to be a linear array of RGBA or RGB pixel data;
* how to retrieve that data is left to platform specific image loaders. For
* instance, if you use the GdkPixbuf library:
*
* |[<!-- language="C" -->
* ClutterContent *image = clutter_image_new ();
*
* GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file (filename, NULL);
*
* clutter_image_set_data (CLUTTER_IMAGE (image),
* gdk_pixbuf_get_pixels (pixbuf),
* gdk_pixbuf_has_alpha (pixbuf)
* ? COGL_PIXEL_FORMAT_RGBA_8888
* : COGL_PIXEL_FORMAT_RGB_888,
* gdk_pixbuf_get_width (pixbuf),
* gdk_pixbuf_get_height (pixbuf),
* gdk_pixbuf_get_rowstride (pixbuf),
* &error);
*
* g_object_unref (pixbuf);
* ]|
*
* Return value: %TRUE if the image data was successfully loaded, * Return value: %TRUE if the image data was successfully loaded,
* and %FALSE otherwise. * and %FALSE otherwise.
* *