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https://gitlab.freedesktop.org/wayland/weston
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083681325b
This is a complete port of the DRM backend that uses the recently added output handling API for output configuration. Output can be configured at runtime by passing the necessary configuration parameters, which can be filled in manually or obtained from the configuration file using previously added functionality. It is required that the scale and transform values are set using the previously added functionality. After everything has been set, output needs to be enabled manually using weston_output_enable(). v2: - Added missing drmModeFreeCrtc() to drm_output_enable() cleanup list in case of failure. - Split drm_backend_disable() into drm_backend_deinit() to accomodate for changes in the first patch in the series. Moved restoring original crtc to drm_output_destroy(). v3: - Moved origcrtc allocation to drm_output_set_mode(). - Swapped connector_get_current_mode() and drm_output_add_mode() calls in drm_output_set_mode() to match current weston. - Moved crtc_allocator and connector_allocator update from drm_output_enable() to create_output_for_connector() to avoid problems when more than one monitor is connected at startup and crtc allocator wasn't updated before create_output_for_connector() was called second time, resulting in one screen being turned off. - Moved crtc_allocator and connector_allocator update from drm_output_deinit() to drm_output_destroy(), as it should not be called on drm_output_disable(). - Use weston_compositor_add_pending_output(). - Bump weston_drm_backend_config version to 2. v4: - Reset output->original_crtc to NULL if drm_output_set_mode() fails. - Remove unneeded log message when disabling an output when a pageflip is pending. - Document that create_output_for_connector() takes ownership of the connector. - Free the connector if create output conditionals are not met in create_outputs() and update_outputs(). Signed-off-by: Armin Krezović <krezovic.armin@gmail.com> Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
149 lines
4.5 KiB
C
149 lines
4.5 KiB
C
/*
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* Copyright © 2008-2011 Kristian Høgsberg
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* Copyright © 2011 Intel Corporation
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* Copyright © 2015 Giulio Camuffo
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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_COMPOSITOR_DRM_H
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#define WESTON_COMPOSITOR_DRM_H
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#include "compositor.h"
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#include "plugin-registry.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define WESTON_DRM_BACKEND_CONFIG_VERSION 2
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struct libinput_device;
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enum weston_drm_backend_output_mode {
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/** The output is disabled */
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WESTON_DRM_BACKEND_OUTPUT_OFF,
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/** The output will use the current active mode */
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WESTON_DRM_BACKEND_OUTPUT_CURRENT,
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/** The output will use the preferred mode. A modeline can be provided
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* by setting weston_backend_output_config::modeline in the form of
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* "WIDTHxHEIGHT" or in the form of an explicit modeline calculated
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* using e.g. the cvt tool. If a valid modeline is supplied it will be
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* used, if invalid or NULL the preferred available mode will be used. */
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WESTON_DRM_BACKEND_OUTPUT_PREFERRED,
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};
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#define WESTON_DRM_OUTPUT_API_NAME "weston_drm_output_api_v1"
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struct weston_drm_output_api {
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/** The mode to be used by the output. Refer to the documentation
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* of WESTON_DRM_BACKEND_OUTPUT_PREFERRED for details.
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*
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* Returns 0 on success, -1 on failure.
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*/
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int (*set_mode)(struct weston_output *output,
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enum weston_drm_backend_output_mode mode,
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const char *modeline);
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/** The pixel format to be used by the output. Valid values are:
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* - NULL - The format set at backend creation time will be used;
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* - "xrgb8888";
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* - "rgb565"
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* - "xrgb2101010"
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*/
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void (*set_gbm_format)(struct weston_output *output,
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const char *gbm_format);
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/** The seat to be used by the output. Set to NULL to use the
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* default seat.
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*/
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void (*set_seat)(struct weston_output *output,
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const char *seat);
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};
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static inline const struct weston_drm_output_api *
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weston_drm_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_DRM_OUTPUT_API_NAME,
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sizeof(struct weston_drm_output_api));
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return (const struct weston_drm_output_api *)api;
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}
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/** The backend configuration struct.
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*
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* weston_drm_backend_config contains the configuration used by a DRM
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* backend.
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*/
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struct weston_drm_backend_config {
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struct weston_backend_config base;
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/** The connector id of the output to be initialized.
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*
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* A value of 0 will enable all available outputs.
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*/
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int connector;
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/** The tty to be used. Set to 0 to use the current tty. */
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int tty;
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/** Whether to use the pixman renderer instead of the OpenGL ES renderer. */
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bool use_pixman;
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/** The seat to be used for input and output.
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*
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* If NULL the default "seat0" will be used. The backend will
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* take ownership of the seat_id pointer and will free it on
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* backend destruction.
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*/
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char *seat_id;
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/** The pixel format of the framebuffer to be used.
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*
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* Valid values are:
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* - NULL - The default format ("xrgb8888") will be used;
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* - "xrgb8888";
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* - "rgb565"
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* - "xrgb2101010"
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* The backend will take ownership of the format pointer and will free
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* it on backend destruction.
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*/
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char *gbm_format;
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/** Callback used to configure input devices.
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*
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* This function will be called by the backend when a new input device
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* needs to be configured.
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* If NULL the device will use the default configuration.
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*/
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void (*configure_device)(struct weston_compositor *compositor,
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struct libinput_device *device);
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bool use_current_mode;
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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_COMPOSITOR_DRM_H */
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