/usr/include/unagi/rendering.h is in unagi-dev 0.3.4-1ubuntu1.
This file is owned by root:root, with mode 0o644.
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*
* Copyright (C) 2009 Arnaud "arnau" Fontaine <arnau@mini-dweeb.org>
*
* 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 the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
/** \file
* \brief Rendering backend
*
* Rendering backends architecture:
*
* For obvious reasons, only one rendering backend is enabled at the
* same time and is only a layer on top of the actual rendering
* library used (at the moment XRender) to allow writing another
* backend easily.
*
* Each backend exports a 'render_t rendering_functions' global
* variable which defines all the members of the render_t structure
* given below.
*/
#ifndef RENDERING_H
#define RENDERING_H
#include <stdbool.h>
#include <stdint.h>
#include "window.h"
/** Functions exported by the rendering backend */
typedef struct
{
/** Initialisation routine */
bool (*init) (void);
/** Second step of the initialisation routine */
bool (*init_finalise) (void);
/** Reset the root Window background */
void (*reset_background) (void);
/** Paint the root background to the root window */
void (*paint_background) (void);
/** Paint a given window */
void (*paint_window) (window_t *);
/** Paint all the windows on the root window */
void (*paint_all) (void);
/** Check whether the given request is backend-specific */
bool (*is_request) (const uint8_t);
/** Get the request label of a backend request */
const char *(*get_request_label) (const uint16_t);
/** Get the error label of a backend error */
const char *(*get_error_label) (const uint8_t);
/** Free resources associated with a window when the Pixmap is freed */
void (*free_window_pixmap) (window_t *);
/** Free resources associated with a window */
void (*free_window) (window_t *);
} rendering_t;
bool rendering_load(void);
void rendering_unload(void);
#endif
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