1d2eee208c
This is the blending space to monitor space color transform. It needs to be implemented in the renderers, unless a backend sets from_blend_to_output_by_backend = true, in which case the backend does it and the renderer does not. The intention is that from_blend_to_output_by_backend can be toggled frame by frame to allow backends to react to dynamic change of output color profile. For now, renderers just assert that they don't need to do anything for output color transform. Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/*
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* Copyright 2021 Collabora, Ltd.
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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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#include "config.h"
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#include <libweston/libweston.h>
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#include "color.h"
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#include "shared/helpers.h"
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struct weston_color_manager_noop {
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struct weston_color_manager base;
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};
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static struct weston_color_manager_noop *
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get_cmnoop(struct weston_color_manager *cm_base)
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{
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return container_of(cm_base, struct weston_color_manager_noop, base);
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}
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static void
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cmnoop_destroy_color_transform(struct weston_color_transform *xform)
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{
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/* Never called, as never creates an actual color transform. */
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}
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static bool
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cmnoop_get_surface_color_transform(struct weston_color_manager *cm_base,
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struct weston_surface *surface,
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struct weston_output *output,
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struct weston_surface_color_transform *surf_xform)
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{
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/* TODO: Assert surface has no colorspace set */
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/* TODO: Assert output has no colorspace set */
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/* Identity transform */
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surf_xform->transform = NULL;
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surf_xform->identity_pipeline = true;
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return true;
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}
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static bool
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cmnoop_get_output_color_transform(struct weston_color_manager *cm_base,
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struct weston_output *output,
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struct weston_color_transform **xform_out)
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{
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/* TODO: Assert output has no colorspace set */
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/* Identity transform */
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*xform_out = NULL;
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return true;
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}
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static bool
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cmnoop_init(struct weston_color_manager *cm_base)
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{
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/* No renderer requirements to check. */
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/* Nothing to initialize. */
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return true;
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}
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static void
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cmnoop_destroy(struct weston_color_manager *cm_base)
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{
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struct weston_color_manager_noop *cmnoop = get_cmnoop(cm_base);
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free(cmnoop);
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}
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struct weston_color_manager *
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weston_color_manager_noop_create(struct weston_compositor *compositor)
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{
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struct weston_color_manager_noop *cm;
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cm = zalloc(sizeof *cm);
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if (!cm)
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return NULL;
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cm->base.name = "no-op";
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cm->base.compositor = compositor;
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cm->base.supports_client_protocol = false;
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cm->base.init = cmnoop_init;
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cm->base.destroy = cmnoop_destroy;
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cm->base.destroy_color_transform = cmnoop_destroy_color_transform;
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cm->base.get_surface_color_transform =
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cmnoop_get_surface_color_transform;
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cm->base.get_output_color_transform = cmnoop_get_output_color_transform;
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return &cm->base;
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}
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