[PATCH 2/3] Add initial color management framework code
Kristian Høgsberg
hoegsberg at gmail.com
Wed May 1 11:47:18 PDT 2013
On Wed, Apr 24, 2013 at 02:58:03PM +0100, Richard Hughes wrote:
> ICC profiles can now be specified in weston.ini for each output, or a CMS
> implementation can optionally loaded from a pluggable module.
Hey Richard,
This is cool stuff and I'm happy to see weston gain support for color
management. A few comments below.
Kristian
> ---
> configure.ac | 7 +++
> src/Makefile.am | 6 ++-
> src/cms.c | 106 +++++++++++++++++++++++++++++++++++++
> src/cms.h | 84 +++++++++++++++++++++++++++++
> src/compositor-drm.c | 147 ++++++++++++++++++++++++++++++++++++++++++++++++++-
> src/compositor.c | 7 +++
> src/compositor.h | 21 ++++++++
> weston.ini | 2 +
> 8 files changed, 376 insertions(+), 4 deletions(-)
> create mode 100644 src/cms.c
> create mode 100644 src/cms.h
>
> diff --git a/configure.ac b/configure.ac
> index d5fea9d..1552d73 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -315,6 +315,13 @@ AC_MSG_NOTICE([Weston's native backend: $WESTON_NATIVE_BACKEND])
> AC_DEFINE_UNQUOTED([WESTON_NATIVE_BACKEND], ["$WESTON_NATIVE_BACKEND"],
> [The default backend to load, if not wayland nor x11.])
>
> +PKG_CHECK_MODULES(LCMS, lcms2,
> + [have_lcms=yes], [have_lcms=no])
> +if test "x$have_lcms" = xyes; then
> + AC_DEFINE(HAVE_LCMS, 1, [Have lcms support])
> +fi
> +AM_CONDITIONAL(HAVE_LCMS, [test "x$have_lcms" = xyes])
> +
> WAYLAND_SCANNER_RULES(['$(top_srcdir)/protocol'])
>
> AC_CONFIG_FILES([Makefile
> diff --git a/src/Makefile.am b/src/Makefile.am
> index d33ebc5..7489086 100644
> --- a/src/Makefile.am
> +++ b/src/Makefile.am
> @@ -9,8 +9,8 @@ AM_CPPFLAGS = \
> -DIN_WESTON
>
> weston_LDFLAGS = -export-dynamic
> -weston_CFLAGS = $(GCC_CFLAGS) $(COMPOSITOR_CFLAGS) $(LIBUNWIND_CFLAGS)
> -weston_LDADD = $(COMPOSITOR_LIBS) $(LIBUNWIND_LIBS) \
> +weston_CFLAGS = $(GCC_CFLAGS) $(COMPOSITOR_CFLAGS) $(LIBUNWIND_CFLAGS) $(LCMS_CFLAGS)
> +weston_LDADD = $(COMPOSITOR_LIBS) $(LIBUNWIND_LIBS) $(LCMS_LIBS) \
> $(DLOPEN_LIBS) -lm ../shared/libshared.la
>
> weston_SOURCES = \
> @@ -20,6 +20,8 @@ weston_SOURCES = \
> compositor.h \
> filter.c \
> filter.h \
> + cms.c \
> + cms.h \
> screenshooter.c \
> screenshooter-protocol.c \
> screenshooter-server-protocol.h \
> diff --git a/src/cms.c b/src/cms.c
> new file mode 100644
> index 0000000..1acc680
> --- /dev/null
> +++ b/src/cms.c
> @@ -0,0 +1,106 @@
> +/*
> + * Copyright © 2013 Richard Hughes
> + *
> + * Permission to use, copy, modify, distribute, and sell this software and
> + * its documentation for any purpose is hereby granted without fee, provided
> + * that the above copyright notice appear in all copies and that both that
> + * copyright notice and this permission notice appear in supporting
> + * documentation, and that the name of the copyright holders not be used in
> + * advertising or publicity pertaining to distribution of the software
> + * without specific, written prior permission. The copyright holders make
> + * no representations about the suitability of this software for any
> + * purpose. It is provided "as is" without express or implied warranty.
> + *
> + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
> + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
> + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
> + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
> + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
> + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
> + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> + */
> +
> +#ifdef HAVE_CONFIG_H
> +#include <config.h>
> +#endif
> +
> +#include <stdlib.h>
> +#include <string.h>
> +#include <stdio.h>
> +
> +#ifdef HAVE_LCMS
> +#include <lcms2.h>
> +#endif
> +
> +#include "compositor.h"
> +#include "cms.h"
> +
> +WL_EXPORT void
> +weston_cms_set_color_profile(struct weston_output *o,
> + struct weston_color_profile *p)
> +{
> + if (o->color_profile == p)
> + return;
> + if (o->color_profile)
> + weston_cms_destroy_profile(o->color_profile);
> + o->color_profile = p;
> + if (o->updated_color_profile)
> + o->updated_color_profile(o);
> +}
> +
> +WL_EXPORT int
> +weston_cms_output_added(struct weston_output *o,
> + enum weston_color_manager_flags flags)
> +{
> + struct weston_compositor *ec = o->compositor;
> + if (!ec->cms)
> + return 0;
> + if (!ec->cms->output_added)
> + return 0;
> + return ec->cms->output_added(o, flags);
> +}
> +
> +WL_EXPORT int
> +weston_cms_output_removed(struct weston_output *o)
> +{
> + struct weston_compositor *ec = o->compositor;
> + if (!ec->cms)
> + return 0;
> + if (!ec->cms->output_removed)
> + return 0;
> + return ec->cms->output_removed(o);
> +}
> +
> +WL_EXPORT void
> +weston_cms_destroy_profile(struct weston_color_profile *p)
> +{
> +#ifdef HAVE_LCMS
> + cmsCloseProfile(p->lcms_handle);
> +#endif
> + free(p->filename);
> + free(p);
> +}
> +
> +WL_EXPORT struct weston_color_profile *
> +weston_cms_create_profile(const char *filename,
> + void *lcms_profile)
> +{
> + struct weston_color_profile *p;
> + p = calloc(sizeof(struct weston_color_profile), 1);
> + p->filename = strdup(filename);
> + p->lcms_handle = lcms_profile;
> + return p;
> +}
> +
> +WL_EXPORT struct weston_color_profile *
> +weston_cms_load_profile(const char *filename)
> +{
> + struct weston_color_profile *p = NULL;
> +#ifdef HAVE_LCMS
> + cmsHPROFILE lcms_profile;
> + lcms_profile = cmsOpenProfileFromFile(filename, "r");
> + if (lcms_profile)
> + p = weston_cms_create_profile(filename, lcms_profile);
> +#endif
> + return p;
> +}
> diff --git a/src/cms.h b/src/cms.h
> new file mode 100644
> index 0000000..d99587f
> --- /dev/null
> +++ b/src/cms.h
> @@ -0,0 +1,84 @@
> +/*
> + * Copyright © 2013 Richard Hughes
> + *
> + * Permission to use, copy, modify, distribute, and sell this software and
> + * its documentation for any purpose is hereby granted without fee, provided
> + * that the above copyright notice appear in all copies and that both that
> + * copyright notice and this permission notice appear in supporting
> + * documentation, and that the name of the copyright holders not be used in
> + * advertising or publicity pertaining to distribution of the software
> + * without specific, written prior permission. The copyright holders make
> + * no representations about the suitability of this software for any
> + * purpose. It is provided "as is" without express or implied warranty.
> + *
> + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
> + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
> + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
> + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
> + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
> + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
> + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> + */
> +
> +#ifndef _WESTON_CMS_H_
> +#define _WESTON_CMS_H_
> +
> +#include "compositor.h"
> +
> +/* General overview on how to be a CMS plugin:
> + *
> + * First, some nomenclature:
> + *
> + * CMF: Color management framework, i.e. "Use foo.icc for device $bar"
> + * CMM: Color management module that converts pixel colors, which is
> + * usually lcms2 on any modern OS.
> + * CMS: Color management system that encompasses both a CMF and CMM.
> + * ICC: International Color Consortium, the people that define the
> + * binary encoding of a .icc file.
> + * VCGT: Video Card Gamma Tag. An Apple extension to the ICC specification
> + * that allows the calibration state to be stored in the ICC profile
> + * Output: Physical port with a display attached, e.g. LVDS1
> + *
> + * As a CMF is probably something you don't want or need on an embeded install
> + * these functions will not be called if the icc_profile key is set for a
> + * specific [output] section in weston.ini
> + *
> + * Most desktop environments want the CMF to decide what profile to use in
> + * different situations, so that displays can be profiled and also so that
> + * the ICC profiles can be changed at runtime depending on the task or ambient
> + * environment.
> + *
> + * The CMF can be selected using the 'cms' key in the [core] section.
> + * Specifying multiple CMFs will not work.
> + *
> + * The general idea is the compositor creates an output which is registered
> + * with the CMS using weston_cms_output_added(). This is expected to call
> + * the ->updated_color_profile() vfunc on the output with the prepared object
> + * of type weston_color_profile, or NULL if there is no color profile to apply.
> + *
> + * If the CMF can detect that the assigned ICC profile has changed for a
> + * specific output, then it can call the ->updated_color_profile() vfunc at any
> + * time until weston_cms_output_removed() is called.
> + *
> + * The updated_color_profile() vfunc is expected to set the output calibration
> + * state, typically by uploading the VCGT data to the graphics card using
> + * drmModeCrtcSetGamma()
> + */
> +
> +void
> +weston_cms_set_color_profile(struct weston_output *o,
> + struct weston_color_profile *p);
> +int
> +weston_cms_output_added(struct weston_output *o,
> + enum weston_color_manager_flags flags);
> +int
> +weston_cms_output_removed(struct weston_output *o);
> +struct weston_color_profile *
> +weston_cms_create_profile(const char *filename,
> + void *lcms_profile);
> +struct weston_color_profile *
> +weston_cms_load_profile(const char *filename);
> +void
> +weston_cms_destroy_profile(struct weston_color_profile *p);
> +
> +#endif
> diff --git a/src/compositor-drm.c b/src/compositor-drm.c
> index c8016cd..15f99c3 100644
> --- a/src/compositor-drm.c
> +++ b/src/compositor-drm.c
> @@ -21,6 +21,10 @@
> * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> */
>
> +#ifdef HAVE_CONFIG_H
> +#include <config.h>
> +#endif
> +
> #define _GNU_SOURCE
>
> #include <errno.h>
> @@ -33,6 +37,10 @@
> #include <assert.h>
> #include <sys/mman.h>
>
> +#ifdef HAVE_LCMS
> +#include <lcms2.h>
> +#endif
> +
> #include <xf86drm.h>
> #include <xf86drmMode.h>
> #include <drm_fourcc.h>
> @@ -46,11 +54,13 @@
> #include "pixman-renderer.h"
> #include "udev-seat.h"
> #include "launcher-util.h"
> +#include "cms.h"
>
> static int option_current_mode = 0;
> static char *output_name;
> static char *output_mode;
> static char *output_transform;
> +static char *output_icc_profile;
> static struct wl_list configured_output_list;
>
> enum output_config {
> @@ -70,6 +80,7 @@ struct drm_configured_output {
> drmModeModeInfo crtc_mode;
> enum output_config config;
> struct wl_list link;
> + struct weston_color_profile *color_profile;
> };
>
> struct drm_compositor {
> @@ -545,6 +556,95 @@ drm_output_render(struct drm_output *output, pixman_region32_t *damage)
> }
>
> static void
> +drm_output_gamma_reset(struct drm_compositor *compositor,
> + struct drm_output *output)
> +{
> + int i;
> + int ret;
> + int size;
> + uint16_t *blue = NULL;
> + uint16_t *green = NULL;
> + uint16_t *red = NULL;
> + uint32_t tmp;
> +
> + if (!output->original_crtc)
> + return;
> +
> + size = output->original_crtc->gamma_size;
> + red = calloc(sizeof(uint16_t), size);
> + green = calloc(sizeof(uint16_t), size);
> + blue = calloc(sizeof(uint16_t), size);
> + for (i = 0; i < size; i++) {
> + tmp = (uint32_t) 0xffff * (uint32_t) i / (uint32_t) (size - 1);
> + red[i] = green[i] = blue[i] = tmp;
> + }
> + ret = drmModeCrtcSetGamma(compositor->drm.fd,
> + output->crtc_id,
> + size,
> + red, green, blue);
> + if (ret)
> + weston_log("reset gamma failed: %m\n");
> +
> + free(red);
> + free(green);
> + free(blue);
> +}
> +
> +static void
> +drm_output_updated_color_profile(struct weston_output *output_base)
> +{
Could we move the LCMS code to a built-in or make a lcms.so module? I
think we don't need cms.c/h (see below for details), but just the lcms
code in its own module. And then make the weston_output interface be
output->set_gamma(), since that's all the output really supports?
> +#ifdef HAVE_LCMS
> + struct drm_output *output = (struct drm_output *) output_base;
> + struct drm_compositor *compositor = (struct drm_compositor *) output->base.compositor;
> + cmsFloat32Number in;
> + const cmsToneCurve **vcgt;
> + int i;
> + int rc;
> + int size;
> + uint16_t *red = NULL;
> + uint16_t *green = NULL;
> + uint16_t *blue = NULL;
> +
> + /* anything to apply */
> + if (!output->base.color_profile) {
> + drm_output_gamma_reset (compositor, output);
> + return;
> + }
> + if (!output->original_crtc)
> + return;
> + weston_log("Using ICC profile %s\n",
> + output->base.color_profile->filename);
> +
> + vcgt = cmsReadTag (output->base.color_profile->lcms_handle, cmsSigVcgtTag);
> + if (vcgt == NULL || vcgt[0] == NULL) {
> + drm_output_gamma_reset(compositor, output);
> + return;
> + }
> +
> + size = output->original_crtc->gamma_size;
> + red = calloc(sizeof(uint16_t), size);
> + green = calloc(sizeof(uint16_t), size);
> + blue = calloc(sizeof(uint16_t), size);
> + for (i = 0; i < size; i++) {
> + in = (cmsFloat32Number) i / (cmsFloat32Number) (size - 1);
> + red[i] = cmsEvalToneCurveFloat(vcgt[0], in) * (double) 0xffff;
> + green[i] = cmsEvalToneCurveFloat(vcgt[1], in) * (double) 0xffff;
> + blue[i] = cmsEvalToneCurveFloat(vcgt[2], in) * (double) 0xffff;
> + }
> + rc = drmModeCrtcSetGamma(compositor->drm.fd,
> + output->crtc_id,
> + size,
> + red, green, blue);
> + if (rc)
> + weston_log("set gamma failed: %m\n");
> +
> + free(red);
> + free(green);
> + free(blue);
> +#endif
> +}
> +
> +static void
> drm_output_repaint(struct weston_output *output_base,
> pixman_region32_t *damage)
> {
> @@ -570,6 +670,7 @@ drm_output_repaint(struct weston_output *output_base,
> weston_log("set mode failed: %m\n");
> return;
> }
> + drm_output_updated_color_profile(output_base);
Doesn't this set the gamma ramp every time we repaint?
> }
>
> if (drmModePageFlip(compositor->drm.fd, output->crtc_id,
> @@ -1026,7 +1127,11 @@ drm_output_destroy(struct weston_output *output_base)
> /* Turn off hardware cursor */
> drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
>
> + /* Remove CMS device */
> + weston_cms_output_removed(&output->base);
I'd like to add a destroy_signal to the weston_output and then let the
cms hook into that instead.
> /* Restore original CRTC state */
> + drm_output_gamma_reset (c, output);
> drmModeSetCrtc(c->drm.fd, origcrtc->crtc_id, origcrtc->buffer_id,
> origcrtc->x, origcrtc->y,
> &output->connector_id, 1, &origcrtc->mode);
> @@ -1648,6 +1753,7 @@ create_output_for_connector(struct drm_compositor *ec,
> int i;
> char name[32];
> const char *type_name;
> + enum weston_color_manager_flags cm_flags = 0;
>
> i = find_crtc_for_connector(ec, resources, connector);
> if (i < 0) {
> @@ -1787,6 +1893,18 @@ create_output_for_connector(struct drm_compositor *ec,
> output->base.backlight_current = drm_get_backlight(output);
> }
>
> + /* get the ICC profile for the device from the CMS, *unless* there is
> + * a hardcoded profile specified in [output] */
> + if (o && o->color_profile) {
> + weston_log("Using hardcoded ICC profile %s\n",
> + o->color_profile->filename);
> + weston_cms_set_color_profile(&output->base, o->color_profile);
> + } else {
> + if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
> + cm_flags &= WESTON_COLOR_MANAGER_FLAG_OUTPUT_INTERNAL;
> + weston_cms_output_added(&output->base, cm_flags);
> + }
> +
Likewise, we should add a output_created_signal (similar to
seat_created_signal) and the cms should hook into that instead of
calling into the cms here from compositor-drm.c. As for the cm_flags
and color profile, we'll need to make those weston_output fields and
set them before emitting the signal.
> wl_list_insert(ec->base.output_list.prev, &output->base.link);
>
> find_and_parse_output_edid(ec, output, connector);
> @@ -1798,6 +1916,7 @@ create_output_for_connector(struct drm_compositor *ec,
> output->base.assign_planes = drm_assign_planes;
> output->base.set_dpms = drm_set_dpms;
> output->base.switch_mode = drm_output_switch_mode;
> + output->base.updated_color_profile = drm_output_updated_color_profile;
>
> weston_plane_init(&output->cursor_plane, 0, 0);
> weston_plane_init(&output->fb_plane, 0, 0);
> @@ -2098,6 +2217,7 @@ drm_restore(struct weston_compositor *ec)
> static void
> drm_free_configured_output(struct drm_configured_output *output)
> {
> + weston_cms_destroy_profile(output->color_profile);
> free(output->name);
> free(output->mode);
> free(output);
> @@ -2565,21 +2685,39 @@ drm_output_set_transform(struct drm_configured_output *output)
> }
>
> static void
> +drm_output_set_icc_profile(struct drm_configured_output *output)
> +{
> + if (!output_icc_profile) {
> + output->color_profile = NULL;
> + return;
> + }
> + output->color_profile = weston_cms_load_profile(output_icc_profile);
> + if (output->color_profile) {
> + weston_log("Using hardcoded profile \"%s\" for output %s\n",
> + output_icc_profile, output_name);
> + } else {
> + weston_log("Failed to load profile \"%s\" for output %s\n",
> + output_icc_profile, output_name);
> + }
> +}
compositor-drm.c (currently) has to parse the output section, but this
part should be done by the cms plugin. All we need to do here then is
to set the base weston_output fields so that the cms plugin can access
it when it gets the output_created_signal.
> +static void
> output_section_done(void *data)
> {
> struct drm_configured_output *output;
>
> output = malloc(sizeof *output);
>
> - if (!output || !output_name || (output_name[0] == 'X') ||
> - (!output_mode && !output_transform)) {
Keep the 'X' test, we have the convention that outputs named
Xsomething are X windows.
> + if (!output || !output_name) {
> free(output_name);
> free(output_mode);
> free(output_transform);
> + free(output_icc_profile);
> free(output);
> output_name = NULL;
> output_mode = NULL;
> output_transform = NULL;
> + output_icc_profile = NULL;
> return;
> }
>
> @@ -2607,12 +2745,16 @@ output_section_done(void *data)
> }
>
> drm_output_set_transform(output);
> + drm_output_set_icc_profile(output);
>
> wl_list_insert(&configured_output_list, &output->link);
>
> if (output_transform)
> free(output_transform);
> output_transform = NULL;
> + if (output_icc_profile)
> + free(output_icc_profile);
> + output_icc_profile = NULL;
> }
>
> WL_EXPORT struct weston_compositor *
> @@ -2638,6 +2780,7 @@ backend_init(struct wl_display *display, int *argc, char *argv[],
> { "name", CONFIG_KEY_STRING, &output_name },
> { "mode", CONFIG_KEY_STRING, &output_mode },
> { "transform", CONFIG_KEY_STRING, &output_transform },
> + { "icc_profile", CONFIG_KEY_STRING, &output_icc_profile },
> };
>
> const struct config_section config_section[] = {
> diff --git a/src/compositor.c b/src/compositor.c
> index 693df2c..5047471 100644
> --- a/src/compositor.c
> +++ b/src/compositor.c
> @@ -56,6 +56,7 @@
>
> #include <wayland-server.h>
> #include "compositor.h"
> +#include "cms.h"
> #include "../shared/os-compatibility.h"
> #include "git-version.h"
> #include "version.h"
> @@ -2906,6 +2907,8 @@ weston_output_destroy(struct weston_output *output)
> {
> struct weston_compositor *c = output->compositor;
>
> + weston_cms_destroy_profile(output->color_profile);
> +
> pixman_region32_fini(&output->region);
> pixman_region32_fini(&output->previous_damage);
> output->compositor->output_id_pool &= ~(1 << output->id);
> @@ -3526,6 +3529,7 @@ int main(int argc, char *argv[])
> int i;
> char *backend = NULL;
> const char *modules = "desktop-shell.so", *option_modules = NULL;
> + const char *cms_modules = NULL;
> char *log = NULL;
> int32_t idle_time = 300;
> int32_t help = 0;
> @@ -3535,6 +3539,7 @@ int main(int argc, char *argv[])
>
> const struct config_key core_config_keys[] = {
> { "modules", CONFIG_KEY_STRING, &modules },
> + { "cms", CONFIG_KEY_STRING, &cms_modules },
> };
>
> const struct config_section cs[] = {
> @@ -3617,6 +3622,8 @@ int main(int argc, char *argv[])
>
> setenv("WAYLAND_DISPLAY", socket_name, 1);
>
> + if (load_modules(ec, cms_modules, &argc, argv, config_file) < 0)
> + goto out;
> if (load_modules(ec, modules, &argc, argv, config_file) < 0)
> goto out;
It should be fine to just add the cms module to the module= key in the
ini file, eg:
modules=xwayland.so,simple-cms.so
> if (load_modules(ec, option_modules, &argc, argv, config_file) < 0)
> diff --git a/src/compositor.h b/src/compositor.h
> index eb8ad82..81d7035 100644
> --- a/src/compositor.h
> +++ b/src/compositor.h
> @@ -154,6 +154,11 @@ enum dpms_enum {
> WESTON_DPMS_OFF
> };
>
> +struct weston_color_profile {
> + char *filename;
> + void *lcms_handle;
> +};
> +
> struct weston_output {
> uint32_t id;
>
> @@ -197,6 +202,9 @@ struct weston_output {
> uint32_t backlight_current;
> void (*set_backlight)(struct weston_output *output, uint32_t value);
> void (*set_dpms)(struct weston_output *output, enum dpms_enum level);
> +
> + struct weston_color_profile *color_profile;
> + void (*updated_color_profile)(struct weston_output *output);
This one should just be void (*set_gamma)(output, r, g, b) and we can
advertise the size of the gamma ramp as a field in weston_output or
just always assume 256 steps and uint32_t values.
> };
>
> struct weston_xkb_info {
> @@ -297,6 +305,17 @@ struct weston_renderer {
> void (*destroy)(struct weston_compositor *ec);
> };
>
> +enum weston_color_manager_flags {
> + WESTON_COLOR_MANAGER_FLAG_OUTPUT_INTERNAL = 1,
> +};
> +
> +struct weston_color_manager {
> + void (*destroy) (struct weston_compositor *c);
> + int (*output_added) (struct weston_output *o,
> + enum weston_color_manager_flags flags);
> + int (*output_removed) (struct weston_output *o);
> +};
I don't think we'll need this struct now. The destroy vfunc should be
listener on the weston_compositor::destroy_signal instead.
> struct weston_compositor {
> struct wl_signal destroy_signal;
>
> @@ -360,6 +379,8 @@ struct weston_compositor {
> struct xkb_rule_names xkb_names;
> struct xkb_context *xkb_context;
> struct weston_xkb_info xkb_info;
> +
> + struct weston_color_manager *cms;
and this one we typically look up using wl_signal_get(signal,
notify_func) and then use container_of to go from the embedded destroy
wl_listener to the cms struct.
> };
>
> struct weston_buffer_reference {
> diff --git a/weston.ini b/weston.ini
> index c6cff76..639a0e8 100644
> --- a/weston.ini
> +++ b/weston.ini
> @@ -1,5 +1,6 @@
> [core]
> #modules=desktop-shell.so,xwayland.so
> +#cms=colord.so
>
> [shell]
> background-image=/usr/share/backgrounds/gnome/Aqua.jpg
> @@ -45,6 +46,7 @@ path=/usr/libexec/weston-keyboard
> #name=LVDS1
> #mode=1680x1050
> #transform=90
> +#icc_profile=/usr/share/color/icc/colord/Bluish.icc
>
> #[output]
> #name=VGA1
> --
> 1.8.2
>
> _______________________________________________
> wayland-devel mailing list
> wayland-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/wayland-devel
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