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weston/libweston/color-lcms/color-lcms.c

130 lines
3.6 KiB

/*
* 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 <lcms2.h>
#include <libweston/libweston.h>
#include "color.h"
#include "color-lcms.h"
#include "shared/helpers.h"
static void
cmlcms_destroy_color_transform(struct weston_color_transform *xform_base)
{
}
static bool
cmlcms_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)
{
/* Identity transform */
surf_xform->transform = NULL;
surf_xform->identity_pipeline = true;
return true;
}
static bool
cmlcms_get_output_color_transform(struct weston_color_manager *cm_base,
struct weston_output *output,
struct weston_color_transform **xform_out)
{
/* Identity transform */
*xform_out = NULL;
return true;
}
static bool
cmlcms_get_sRGB_to_output_color_transform(struct weston_color_manager *cm_base,
struct weston_output *output,
struct weston_color_transform **xform_out)
{
/* Identity transform */
*xform_out = NULL;
return true;
}
static bool
cmlcms_get_sRGB_to_blend_color_transform(struct weston_color_manager *cm_base,
struct weston_output *output,
struct weston_color_transform **xform_out)
{
/* Identity transform */
*xform_out = NULL;
return true;
}
static bool
cmlcms_init(struct weston_color_manager *cm_base)
{
if (!(cm_base->compositor->capabilities & WESTON_CAP_COLOR_OPS)) {
weston_log("color-lcms: error: color operations capability missing. Is GL-renderer not in use?\n");
return false;
}
return true;
}
static void
cmlcms_destroy(struct weston_color_manager *cm_base)
{
struct weston_color_manager_lcms *cmlcms = get_cmlcms(cm_base);
free(cmlcms);
}
WL_EXPORT struct weston_color_manager *
weston_color_manager_create(struct weston_compositor *compositor)
{
struct weston_color_manager_lcms *cm;
cm = zalloc(sizeof *cm);
if (!cm)
return NULL;
cm->base.name = "work-in-progress";
cm->base.compositor = compositor;
cm->base.supports_client_protocol = true;
cm->base.init = cmlcms_init;
cm->base.destroy = cmlcms_destroy;
cm->base.destroy_color_transform = cmlcms_destroy_color_transform;
cm->base.get_surface_color_transform =
cmlcms_get_surface_color_transform;
cm->base.get_output_color_transform = cmlcms_get_output_color_transform;
cm->base.get_sRGB_to_output_color_transform =
cmlcms_get_sRGB_to_output_color_transform;
cm->base.get_sRGB_to_blend_color_transform =
cmlcms_get_sRGB_to_blend_color_transform;
return &cm->base;
}