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-rw-r--r--backend/drm/drm.c19
-rw-r--r--examples/compositor.c4
-rw-r--r--include/wlr/interfaces/wlr_output.h3
-rw-r--r--include/wlr/types/wlr_gamma_control.h21
-rw-r--r--include/wlr/types/wlr_output.h3
-rw-r--r--protocol/gamma-control.xml57
-rw-r--r--protocol/meson.build1
-rw-r--r--types/meson.build1
-rw-r--r--types/wlr_gamma_control.c106
-rw-r--r--types/wlr_output.c14
10 files changed, 229 insertions, 0 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index 5b24e05f..163321a3 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -301,6 +301,23 @@ static void wlr_drm_output_swap_buffers(struct wlr_output *_output) {
output->pageflip_pending = true;
}
+static void wlr_drm_output_set_gamma(struct wlr_output *_output,
+ uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b) {
+ struct wlr_drm_output *output = (struct wlr_drm_output *)_output;
+ struct wlr_drm_backend *backend =
+ wl_container_of(output->renderer, backend, renderer);
+ drmModeCrtcSetGamma(backend->fd, output->crtc->id, size, r, g, b);
+}
+
+static uint16_t wlr_drm_output_get_gamma_size(struct wlr_output *_output) {
+ struct wlr_drm_output *output = (struct wlr_drm_output *)_output;
+ drmModeCrtc *crtc = output->old_crtc;
+ if (!crtc) {
+ return 0;
+ }
+ return crtc->gamma_size;
+}
+
void wlr_drm_output_start_renderer(struct wlr_drm_output *output) {
if (output->state != WLR_DRM_OUTPUT_CONNECTED) {
return;
@@ -696,6 +713,8 @@ static struct wlr_output_impl output_impl = {
.destroy = wlr_drm_output_destroy,
.make_current = wlr_drm_output_make_current,
.swap_buffers = wlr_drm_output_swap_buffers,
+ .set_gamma = wlr_drm_output_set_gamma,
+ .get_gamma_size = wlr_drm_output_get_gamma_size,
};
static int find_id(const void *item, const void *cmp_to) {
diff --git a/examples/compositor.c b/examples/compositor.c
index 024324cd..ca69bdbf 100644
--- a/examples/compositor.c
+++ b/examples/compositor.c
@@ -18,6 +18,7 @@
#include <wlr/types/wlr_xdg_shell_v6.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_data_device_manager.h>
+#include <wlr/types/wlr_gamma_control.h>
#include "wlr/types/wlr_compositor.h"
#include <wlr/xwayland.h>
#include <xkbcommon/xkbcommon.h>
@@ -37,6 +38,7 @@ struct sample_state {
struct wl_resource *focus;
struct wl_listener keyboard_bound;
struct wlr_xwayland *xwayland;
+ struct wlr_gamma_control_manager *gamma_control_manager;
int keymap_fd;
size_t keymap_size;
uint32_t serial;
@@ -162,6 +164,7 @@ int main() {
state.wl_shell = wlr_wl_shell_create(compositor.display);
state.xdg_shell = wlr_xdg_shell_v6_create(compositor.display);
state.data_device_manager = wlr_data_device_manager_create(compositor.display);
+ state.gamma_control_manager = wlr_gamma_control_manager_create(compositor.display);
state.wl_seat = wlr_seat_create(compositor.display, "seat0");
state.keyboard_bound.notify = handle_keyboard_bound;
@@ -191,6 +194,7 @@ int main() {
wlr_xwayland_destroy(state.xwayland);
close(state.keymap_fd);
wlr_seat_destroy(state.wl_seat);
+ wlr_gamma_control_manager_destroy(state.gamma_control_manager);
wlr_data_device_manager_destroy(state.data_device_manager);
wlr_xdg_shell_v6_destroy(state.xdg_shell);
wlr_wl_shell_destroy(state.wl_shell);
diff --git a/include/wlr/interfaces/wlr_output.h b/include/wlr/interfaces/wlr_output.h
index efc8ef43..a95fe588 100644
--- a/include/wlr/interfaces/wlr_output.h
+++ b/include/wlr/interfaces/wlr_output.h
@@ -14,6 +14,9 @@ struct wlr_output_impl {
void (*destroy)(struct wlr_output *output);
void (*make_current)(struct wlr_output *output);
void (*swap_buffers)(struct wlr_output *output);
+ void (*set_gamma)(struct wlr_output *output,
+ uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b);
+ uint16_t (*get_gamma_size)(struct wlr_output *output);
};
void wlr_output_init(struct wlr_output *output, const struct wlr_output_impl *impl);
diff --git a/include/wlr/types/wlr_gamma_control.h b/include/wlr/types/wlr_gamma_control.h
new file mode 100644
index 00000000..259c6474
--- /dev/null
+++ b/include/wlr/types/wlr_gamma_control.h
@@ -0,0 +1,21 @@
+#ifndef _WLR_GAMMA_CONTROL_H
+#define _WLR_GAMMA_CONTROL_H
+#include <wayland-server.h>
+
+struct wlr_gamma_control_manager {
+ struct wl_global *wl_global;
+
+ void *data;
+};
+
+struct wlr_gamma_control {
+ struct wl_resource *resource;
+ struct wl_resource *output;
+
+ void* data;
+};
+
+struct wlr_gamma_control_manager *wlr_gamma_control_manager_create(struct wl_display *display);
+void wlr_gamma_control_manager_destroy(struct wlr_gamma_control_manager *gamma_control_manager);
+
+#endif
diff --git a/include/wlr/types/wlr_output.h b/include/wlr/types/wlr_output.h
index 3371dcb5..b70bd19e 100644
--- a/include/wlr/types/wlr_output.h
+++ b/include/wlr/types/wlr_output.h
@@ -64,5 +64,8 @@ void wlr_output_effective_resolution(struct wlr_output *output,
int *width, int *height);
void wlr_output_make_current(struct wlr_output *output);
void wlr_output_swap_buffers(struct wlr_output *output);
+void wlr_output_set_gamma(struct wlr_output *output,
+ uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b);
+uint16_t wlr_output_get_gamma_size(struct wlr_output *output);
#endif
diff --git a/protocol/gamma-control.xml b/protocol/gamma-control.xml
new file mode 100644
index 00000000..e6e33265
--- /dev/null
+++ b/protocol/gamma-control.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="gamma_control">
+
+ <copyright>
+ Copyright © 2015 Giulio camuffo
+
+ 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.
+ </copyright>
+
+ <interface name="gamma_control_manager" version="1">
+ <request name="destroy" type="destructor"/>
+
+ <request name="get_gamma_control">
+ <arg name="id" type="new_id" interface="gamma_control"/>
+ <arg name="output" type="object" interface="wl_output"/>
+ </request>
+ </interface>
+
+ <interface name="gamma_control" version="1">
+ <enum name="error">
+ <entry name="invalid_gamma" value="0"/>
+ </enum>
+
+ <request name="destroy" type="destructor"/>
+
+ <request name="set_gamma">
+ <arg name="red" type="array"/>
+ <arg name="green" type="array"/>
+ <arg name="blue" type="array"/>
+ </request>
+
+ <request name="reset_gamma"/>
+
+ <event name="gamma_size">
+ <arg name="size" type="uint"/>
+ </event>
+ </interface>
+</protocol>
diff --git a/protocol/meson.build b/protocol/meson.build
index 78bc14b5..6dc88d76 100644
--- a/protocol/meson.build
+++ b/protocol/meson.build
@@ -22,6 +22,7 @@ wayland_scanner_client = generator(
protocols = [
[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml'],
+ 'gamma-control.xml'
]
client_protocols = [
diff --git a/types/meson.build b/types/meson.build
index 697e2f4c..cff40150 100644
--- a/types/meson.build
+++ b/types/meson.build
@@ -19,6 +19,7 @@ lib_wlr_types = static_library(
'wlr_wl_shell.c',
'wlr_compositor.c',
'wlr_box.c',
+ 'wlr_gamma_control.c',
),
include_directories: wlr_inc,
dependencies: [wayland_server, pixman, wlr_protos],
diff --git a/types/wlr_gamma_control.c b/types/wlr_gamma_control.c
new file mode 100644
index 00000000..c654cc21
--- /dev/null
+++ b/types/wlr_gamma_control.c
@@ -0,0 +1,106 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <wayland-server.h>
+#include <wlr/types/wlr_gamma_control.h>
+#include <wlr/types/wlr_output.h>
+#include <wlr/util/log.h>
+#include "gamma-control-protocol.h"
+
+static void resource_destroy(struct wl_client *client, struct wl_resource *resource) {
+ wl_resource_destroy(resource);
+}
+
+static void gamma_control_destroy(struct wl_resource *resource) {
+ struct wlr_gamma_control *gamma_control = wl_resource_get_user_data(resource);
+ free(gamma_control);
+}
+
+static void gamma_control_set_gamma(struct wl_client *client,
+ struct wl_resource *_gamma_control, struct wl_array *red,
+ struct wl_array *green, struct wl_array *blue) {
+ if (red->size != green->size || red->size != blue->size) {
+ wl_resource_post_error(_gamma_control, GAMMA_CONTROL_ERROR_INVALID_GAMMA,
+ "The gamma ramps don't have the same size");
+ return;
+ }
+ uint16_t *r = (uint16_t *)red->data;
+ uint16_t *g = (uint16_t *)green->data;
+ uint16_t *b = (uint16_t *)blue->data;
+ struct wlr_gamma_control *gamma_control = wl_resource_get_user_data(_gamma_control);
+ struct wlr_output *output = wl_resource_get_user_data(gamma_control->output);
+ wlr_output_set_gamma(output, red->size / sizeof(uint16_t), r, g, b);
+}
+
+static void gamma_control_reset_gamma(struct wl_client *client,
+ struct wl_resource *_gamma_control) {
+ // TODO
+}
+
+static const struct gamma_control_interface gamma_control_implementation = {
+ .destroy = resource_destroy,
+ .set_gamma = gamma_control_set_gamma,
+ .reset_gamma = gamma_control_reset_gamma,
+};
+
+static void gamma_control_manager_get_gamma_control(struct wl_client *client,
+ struct wl_resource *_gamma_control_manager, uint32_t id,
+ struct wl_resource *_output) {
+ //struct wlr_gamma_control_manager *gamma_control_manager =
+ // wl_resource_get_user_data(_gamma_control_manager);
+ struct wlr_output *output = wl_resource_get_user_data(_output);
+ struct wlr_gamma_control *gamma_control;
+ if (!(gamma_control = calloc(1, sizeof(struct wlr_gamma_control)))) {
+ return;
+ }
+ gamma_control->output = _output;
+ gamma_control->resource = wl_resource_create(client,
+ &gamma_control_interface, wl_resource_get_version(_gamma_control_manager), id);
+ wlr_log(L_DEBUG, "new gamma_control %p (res %p)", gamma_control, gamma_control->resource);
+ wl_resource_set_implementation(gamma_control->resource,
+ &gamma_control_implementation, gamma_control, gamma_control_destroy);
+ gamma_control_send_gamma_size(gamma_control->resource, wlr_output_get_gamma_size(output));
+}
+
+static struct gamma_control_manager_interface gamma_control_manager_impl = {
+ .get_gamma_control = gamma_control_manager_get_gamma_control,
+};
+
+static void gamma_control_manager_bind(struct wl_client *wl_client,
+ void *_gamma_control_manager, uint32_t version, uint32_t id) {
+ struct wlr_gamma_control_manager *gamma_control_manager = _gamma_control_manager;
+ assert(wl_client && gamma_control_manager);
+ if (version > 1) {
+ wlr_log(L_ERROR, "Client requested unsupported gamma_control version, disconnecting");
+ wl_client_destroy(wl_client);
+ return;
+ }
+ struct wl_resource *wl_resource = wl_resource_create(
+ wl_client, &gamma_control_manager_interface, version, id);
+ wl_resource_set_implementation(wl_resource, &gamma_control_manager_impl,
+ gamma_control_manager, NULL);
+}
+
+struct wlr_gamma_control_manager *wlr_gamma_control_manager_create(struct wl_display *display) {
+ struct wlr_gamma_control_manager *gamma_control_manager =
+ calloc(1, sizeof(struct wlr_gamma_control_manager));
+ if (!gamma_control_manager) {
+ return NULL;
+ }
+ struct wl_global *wl_global = wl_global_create(display,
+ &gamma_control_manager_interface, 1, gamma_control_manager, gamma_control_manager_bind);
+ if (!wl_global) {
+ free(gamma_control_manager);
+ return NULL;
+ }
+ gamma_control_manager->wl_global = wl_global;
+ return gamma_control_manager;
+}
+
+void wlr_gamma_control_manager_destroy(struct wlr_gamma_control_manager *gamma_control_manager) {
+ if (!gamma_control_manager) {
+ return;
+ }
+ // TODO: this segfault (wl_display->registry_resource_list is not init)
+ // wl_global_destroy(gamma_control_manager->wl_global);
+ free(gamma_control_manager);
+}
diff --git a/types/wlr_output.c b/types/wlr_output.c
index ee050dc4..962685b8 100644
--- a/types/wlr_output.c
+++ b/types/wlr_output.c
@@ -223,3 +223,17 @@ void wlr_output_swap_buffers(struct wlr_output *output) {
output->impl->swap_buffers(output);
}
+
+void wlr_output_set_gamma(struct wlr_output *output,
+ uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b) {
+ if (output->impl->set_gamma) {
+ output->impl->set_gamma(output, size, r, g, b);
+ }
+}
+
+uint16_t wlr_output_get_gamma_size(struct wlr_output *output) {
+ if (!output->impl->get_gamma_size) {
+ return 0;
+ }
+ return output->impl->get_gamma_size(output);
+}