weston/include/libweston/backend-headless.h
Loïc Molinari 7b2eddf022 backend-headless: Add support to repaint only on captures
Damages and captures both trigger repaints of outputs. Some
configurations don't care about damages and use headless only for
captures. This commit adds a new feature to libweston that lets
outputs repaint only on captures, not on damages. The headless backend
enables that new feature when given a special refresh rate of 0 mHz.

Signed-off-by: Loïc Molinari <loic.molinari@collabora.com>
2024-02-22 14:26:32 +00:00

59 lines
1.8 KiB
C

/*
* Copyright © 2016 Benoit Gschwind
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef WESTON_COMPOSITOR_HEADLESS_H
#define WESTON_COMPOSITOR_HEADLESS_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <libweston/libweston.h>
#define WESTON_HEADLESS_BACKEND_CONFIG_VERSION 3
struct weston_headless_backend_config {
struct weston_backend_config base;
/** Select the renderer to use */
enum weston_renderer_type renderer;
/** Use output decorations, requires use_gl = true */
bool decorate;
/** Output repaint refresh rate (in mHz). Supported values range from 0
* mHz to 1,000,000 mHz. 0 is a special value that triggers repaints
* only on capture requests, not on damages. */
int refresh;
};
#ifdef __cplusplus
}
#endif
#endif /* WESTON_COMPOSITOR_HEADLESS_H */