weston/libweston/color-noop.c

166 lines
4.5 KiB
C

/*
* Copyright 2021 Collabora, Ltd.
*
* 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.
*/
#include "config.h"
#include <libweston/libweston.h>
#include "color.h"
#include "shared/helpers.h"
#include "shared/string-helpers.h"
struct weston_color_manager_noop {
struct weston_color_manager base;
};
static struct weston_color_manager_noop *
get_cmnoop(struct weston_color_manager *cm_base)
{
return container_of(cm_base, struct weston_color_manager_noop, base);
}
static void
cmnoop_destroy_color_profile(struct weston_color_profile *cprof)
{
/* Never called, as never creates an actual color profile. */
}
static bool
cmnoop_get_color_profile_from_icc(struct weston_color_manager *cm,
const void *icc_data,
size_t icc_len,
const char *name_part,
struct weston_color_profile **cprof_out,
char **errmsg)
{
str_printf(errmsg, "ICC profiles are unsupported.");
return false;
}
static void
cmnoop_destroy_color_transform(struct weston_color_transform *xform)
{
/* Never called, as never creates an actual color transform. */
}
static bool
cmnoop_get_surface_color_transform(struct weston_color_manager *cm_base,
struct weston_surface *surface,
struct weston_output *output,
struct weston_surface_color_transform *surf_xform)
{
/* TODO: Assert surface has no colorspace set */
assert(output->color_profile == NULL);
/* Identity transform */
surf_xform->transform = NULL;
surf_xform->identity_pipeline = true;
return true;
}
static bool
cmnoop_get_output_color_transform(struct weston_color_manager *cm_base,
struct weston_output *output,
struct weston_color_transform **xform_out)
{
assert(output->color_profile == NULL);
/* Identity transform */
*xform_out = NULL;
return true;
}
static bool
cmnoop_get_sRGB_to_output_color_transform(struct weston_color_manager *cm_base,
struct weston_output *output,
struct weston_color_transform **xform_out)
{
assert(output->color_profile == NULL);
/* Identity transform */
*xform_out = NULL;
return true;
}
static bool
cmnoop_get_sRGB_to_blend_color_transform(struct weston_color_manager *cm_base,
struct weston_output *output,
struct weston_color_transform **xform_out)
{
assert(output->color_profile == NULL);
/* Identity transform */
*xform_out = NULL;
return true;
}
static bool
cmnoop_init(struct weston_color_manager *cm_base)
{
/* No renderer requirements to check. */
/* Nothing to initialize. */
return true;
}
static void
cmnoop_destroy(struct weston_color_manager *cm_base)
{
struct weston_color_manager_noop *cmnoop = get_cmnoop(cm_base);
free(cmnoop);
}
struct weston_color_manager *
weston_color_manager_noop_create(struct weston_compositor *compositor)
{
struct weston_color_manager_noop *cm;
cm = zalloc(sizeof *cm);
if (!cm)
return NULL;
cm->base.name = "no-op";
cm->base.compositor = compositor;
cm->base.supports_client_protocol = false;
cm->base.init = cmnoop_init;
cm->base.destroy = cmnoop_destroy;
cm->base.destroy_color_profile = cmnoop_destroy_color_profile;
cm->base.get_color_profile_from_icc = cmnoop_get_color_profile_from_icc;
cm->base.destroy_color_transform = cmnoop_destroy_color_transform;
cm->base.get_surface_color_transform =
cmnoop_get_surface_color_transform;
cm->base.get_output_color_transform = cmnoop_get_output_color_transform;
cm->base.get_sRGB_to_output_color_transform =
cmnoop_get_sRGB_to_output_color_transform;
cm->base.get_sRGB_to_blend_color_transform =
cmnoop_get_sRGB_to_blend_color_transform;
return &cm->base;
}