mirror of
https://github.com/awesomeWM/awesome
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6adeafdec3
Create a pixmap of size 1x1 and a cairo-xcb surface for this pixmap. If the surface ends up in an error state, awesome will refuse to start. This turns a "awesome is unusable and prints lots of errors on X11 servers where the root window has a depth of 8bpp and no one knows where exactly the problem is" into "awesome refuses to start on such X11 servers and prints an error that helps Uli to say immediately what the problem is". Signed-off-by: Uli Schlachter <psychon@znc.in>
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/*
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* draw.h - draw functions header
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*
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* Copyright © 2007-2009 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef AWESOME_COMMON_DRAW_H
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#define AWESOME_COMMON_DRAW_H
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#include <xcb/xcb.h>
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#include <cairo.h>
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#include <lua.h>
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#include "common/util.h"
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typedef struct area_t area_t;
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struct area_t
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{
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/** Co-ords of upper left corner */
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int16_t x;
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int16_t y;
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uint16_t width;
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uint16_t height;
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};
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#define AREA_LEFT(a) ((a).x)
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#define AREA_TOP(a) ((a).y)
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#define AREA_RIGHT(a) ((a).x + (a).width)
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#define AREA_BOTTOM(a) ((a).y + (a).height)
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bool draw_iso2utf8(const char *, size_t, char **, ssize_t *);
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/** Convert a string to UTF-8.
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* \param str The string to convert.
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* \param len The string length.
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* \param dest The destination string that will be allocated.
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* \param dlen The destination string length allocated, can be NULL.
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* \return True if the conversion happened, false otherwise. In both case, dest
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* and dlen will have value and dest have to be free().
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*/
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static inline bool
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a_iso2utf8(const char *str, ssize_t len, char **dest, ssize_t *dlen)
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{
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if(draw_iso2utf8(str, len, dest, dlen))
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return true;
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*dest = a_strdup(str);
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if(dlen)
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*dlen = len;
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return false;
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}
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cairo_surface_t *draw_surface_from_data(int width, int height, uint32_t *data);
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cairo_surface_t *draw_dup_image_surface(cairo_surface_t *surface);
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cairo_surface_t *draw_load_image(lua_State *L, const char *path);
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xcb_visualtype_t *draw_find_visual(const xcb_screen_t *s, xcb_visualid_t visual);
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xcb_visualtype_t *draw_default_visual(const xcb_screen_t *s);
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xcb_visualtype_t *draw_argb_visual(const xcb_screen_t *s);
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uint8_t draw_visual_depth(const xcb_screen_t *s, xcb_visualid_t vis);
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void draw_test_cairo_xcb(void);
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#endif
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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