/*
* _NET_WM_ICON helpers for slide puzzle game
- * Copyright © 2022 Nick Bowler
+ * Copyright © 2023 Nick Bowler
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*/
#define EWMH_ICON_NELEM (2+16*16 + 2+24*24 + 2+32*32 + 2+48*48)
+/*
+ * For each of the n elements of the array pointed to by map, set the
+ * 'pixel' member according to its separated red/green/blue components,
+ * with an alpha value of 255 (opaque).
+ *
+ * The resulting colourmap is suitable for use with ewmh_icon_generate.
+ */
+void ewmh_icon_prepare_cmap(XColor *map, unsigned n);
+
/*
* Generate EWMH icon data based on a sequence of tile colours. Internally,
* this calls icon_tile16 and friends to draw each of the icon patterns.
*
* The sequence specifies the colour of all 9 icon tiles, beginning from the
* top left in row-major order. Each value specifies three offsets into
- * the provided colour map, encoded in the same manner as icon_tile16 et al.
+ * the provided colour map, using the 'pixel' members directly as 32-bit
+ * ARGB colour values.
*
* Returns a newly-allocated buffer which is suitable for use directly with
* XChangeProperty, and should be freed by the caller.