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https://gitlab.freedesktop.org/wayland/weston
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7d2112c713
Pass the backend instead of the compositor to the windowed output API create_head() method and increment the API version. That way the backend will not have to find the backend pointer from the compositor. This is trivial now, but in the multi-backend case would entail iterating over all backends to find the correct one. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/*
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* Copyright © 2016 Armin Krezović
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef WESTON_WINDOWED_OUTPUT_API_H
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#define WESTON_WINDOWED_OUTPUT_API_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <libweston/plugin-registry.h>
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struct weston_compositor;
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struct weston_output;
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#define WESTON_WINDOWED_OUTPUT_API_NAME "weston_windowed_output_api_v2"
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struct weston_windowed_output_api {
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/** Assign a given width and height to an output.
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*
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* \param output An output to be configured.
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* \param width Desired width of the output.
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* \param height Desired height of the output.
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*
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* Returns 0 on success, -1 on failure.
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*
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* This assigns a desired width and height to a windowed
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* output. The backend decides what should be done and applies
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* the desired configuration. After using this function and
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* generic weston_output_set_*, a windowed
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* output should be in a state where weston_output_enable()
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* can be run.
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*/
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int (*output_set_size)(struct weston_output *output,
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int width, int height);
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/** Create a new windowed head.
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*
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* \param backend The backend.
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* \param name Desired name for a new head, not NULL.
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*
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* Returns 0 on success, -1 on failure.
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*
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* This creates a new head in the backend. The new head will
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* be advertised in the compositor's head list and triggers a
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* head_changed callback.
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*
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* A new output can be created for the head. The output must be
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* configured with output_set_size() and
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* weston_output_set_{scale,transform}() before enabling it.
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*
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* \sa weston_compositor_set_heads_changed_cb(),
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* weston_compositor_create_output_with_head()
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*/
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int (*create_head)(struct weston_backend *backend,
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const char *name);
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};
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static inline const struct weston_windowed_output_api *
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weston_windowed_output_get_api(struct weston_compositor *compositor)
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{
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const void *api;
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api = weston_plugin_api_get(compositor, WESTON_WINDOWED_OUTPUT_API_NAME,
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sizeof(struct weston_windowed_output_api));
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return (const struct weston_windowed_output_api *)api;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* WESTON_WINDOWED_OUTPUT_API_H */
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