Implement wlr-gamma-control-unstable-v1
This commit is contained in:
parent
5642c5cc8f
commit
a149c2370a
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@ -199,14 +199,18 @@ static bool atomic_crtc_move_cursor(struct wlr_drm_backend *drm,
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static bool atomic_crtc_set_gamma(struct wlr_drm_backend *drm,
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struct wlr_drm_crtc *crtc, uint16_t *r, uint16_t *g, uint16_t *b,
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uint32_t size) {
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struct drm_color_lut gamma[size];
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// Fallback to legacy gamma interface when gamma properties are not available
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// (can happen on older intel gpu's that support gamma but not degamma)
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if (crtc->props.gamma_lut == 0) {
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return legacy_iface.crtc_set_gamma(drm, crtc, r, g, b, size);
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}
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struct drm_color_lut *gamma = malloc(size * sizeof(struct drm_color_lut));
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if (gamma == NULL) {
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wlr_log(WLR_ERROR, "Failed to allocate gamma table");
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return false;
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}
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for (uint32_t i = 0; i < size; i++) {
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gamma[i].red = r[i];
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gamma[i].green = g[i];
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@ -218,10 +222,12 @@ static bool atomic_crtc_set_gamma(struct wlr_drm_backend *drm,
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}
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if (drmModeCreatePropertyBlob(drm->fd, gamma,
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sizeof(struct drm_color_lut) * size, &crtc->gamma_lut)) {
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size * sizeof(struct drm_color_lut), &crtc->gamma_lut)) {
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free(gamma);
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wlr_log_errno(WLR_ERROR, "Unable to create property blob");
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return false;
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}
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free(gamma);
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struct atomic atom;
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atomic_begin(crtc, &atom);
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@ -228,19 +228,19 @@ static bool drm_connector_swap_buffers(struct wlr_output *output,
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return true;
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}
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static void drm_connector_set_gamma(struct wlr_output *output,
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static bool drm_connector_set_gamma(struct wlr_output *output,
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uint32_t size, uint16_t *r, uint16_t *g, uint16_t *b) {
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struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
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struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
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bool ok;
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bool ok = false;
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if (conn->crtc) {
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ok = drm->iface->crtc_set_gamma(drm, conn->crtc, r, g, b, size);
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if (ok) {
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wlr_output_update_needs_swap(output);
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}
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}
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return ok;
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}
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static uint32_t drm_connector_get_gamma_size(struct wlr_output *output) {
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@ -28,7 +28,7 @@ struct wlr_output_impl {
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void (*destroy)(struct wlr_output *output);
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bool (*make_current)(struct wlr_output *output, int *buffer_age);
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bool (*swap_buffers)(struct wlr_output *output, pixman_region32_t *damage);
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void (*set_gamma)(struct wlr_output *output,
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bool (*set_gamma)(struct wlr_output *output,
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uint32_t size, uint16_t *r, uint16_t *g, uint16_t *b);
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uint32_t (*get_gamma_size)(struct wlr_output *output);
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bool (*export_dmabuf)(struct wlr_output *output,
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@ -0,0 +1,31 @@
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#ifndef WLR_TYPES_WLR_GAMMA_CONTROL_V1_H
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#define WLR_TYPES_WLR_GAMMA_CONTROL_V1_H
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#include <wayland-server.h>
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struct wlr_gamma_control_manager_v1 {
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struct wl_global *global;
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struct wl_list resources;
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struct wl_list controls; // wlr_gamma_control_v1::link
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struct wl_listener display_destroy;
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void *data;
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};
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struct wlr_gamma_control_v1 {
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struct wl_resource *resource;
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struct wlr_output *output;
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struct wl_list link;
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struct wl_listener output_destroy_listener;
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void *data;
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};
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struct wlr_gamma_control_manager_v1 *wlr_gamma_control_manager_v1_create(
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struct wl_display *display);
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void wlr_gamma_control_manager_v1_destroy(
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struct wlr_gamma_control_manager_v1 *manager);
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#endif
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@ -174,7 +174,7 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
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* it is a no-op.
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*/
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void wlr_output_schedule_frame(struct wlr_output *output);
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void wlr_output_set_gamma(struct wlr_output *output,
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bool wlr_output_set_gamma(struct wlr_output *output,
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uint32_t size, uint16_t *r, uint16_t *g, uint16_t *b);
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uint32_t wlr_output_get_gamma_size(struct wlr_output *output);
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bool wlr_output_export_dmabuf(struct wlr_output *output,
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@ -42,6 +42,7 @@ protocols = [
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'server-decoration.xml',
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'virtual-keyboard-unstable-v1.xml',
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'wlr-export-dmabuf-unstable-v1.xml',
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'wlr-gamma-control-unstable-v1.xml',
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'wlr-input-inhibitor-unstable-v1.xml',
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'wlr-layer-shell-unstable-v1.xml',
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'wlr-screencopy-unstable-v1.xml',
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@ -0,0 +1,126 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="wlr_gamma_control_unstable_v1">
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<copyright>
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Copyright © 2015 Giulio camuffo
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Copyright © 2018 Simon Ser
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that copyright notice and this permission
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notice appear in supporting documentation, and that the name of
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the copyright holders not be used in advertising or publicity
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pertaining to distribution of the software without specific,
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written prior permission. The copyright holders make no
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representations about the suitability of this software for any
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purpose. It is provided "as is" without express or implied
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warranty.
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THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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THIS SOFTWARE.
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</copyright>
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<description summary="manage gamma tables of outputs">
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This protocol allows a privileged client to set the gamma tables for
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outputs.
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Warning! The protocol described in this file is experimental and
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backward incompatible changes may be made. Backward compatible changes
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may be added together with the corresponding interface version bump.
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Backward incompatible changes are done by bumping the version number in
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the protocol and interface names and resetting the interface version.
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Once the protocol is to be declared stable, the 'z' prefix and the
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version number in the protocol and interface names are removed and the
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interface version number is reset.
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</description>
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<interface name="zwlr_gamma_control_manager_v1" version="1">
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<description summary="manager to create per-output gamma controls">
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This interface is a manager that allows creating per-output gamma
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controls.
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</description>
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<request name="get_gamma_control">
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<description summary="get a gamma control for an output">
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Create a gamma control that can be used to adjust gamma tables for the
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provided output.
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</description>
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<arg name="id" type="new_id" interface="zwlr_gamma_control_v1"/>
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<arg name="output" type="object" interface="wl_output"/>
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</request>
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<request name="destroy" type="destructor">
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<description summary="destroy the manager">
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All objects created by the manager will still remain valid, until their
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appropriate destroy request has been called.
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</description>
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</request>
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</interface>
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<interface name="zwlr_gamma_control_v1" version="1">
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<description summary="adjust gamma tables for an output">
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This interface allows a client to adjust gamma tables for a particular
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output.
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The client will receive the gamma size, and will then be able to set gamma
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tables. At any time the compositor can send a failed event indicating that
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this object is no longer valid.
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There must always be at most one gamma control object per output, which
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has exclusive access to this particular output. When the gamma control
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object is destroyed, the gamma table is restored to its original value.
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</description>
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<event name="gamma_size">
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<description summary="size of gamma ramps">
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Advertise the size of each gamma ramp.
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This event is sent immediately when the gamma control object is created.
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</description>
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<arg name="size" type="uint" summary="number of elements in a ramp"/>
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</event>
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<enum name="error">
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<entry name="invalid_gamma" value="1" summary="invalid gamma tables"/>
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</enum>
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<request name="set_gamma">
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<description summary="set the gamma table">
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Set the gamma table. The file descriptor can be memory-mapped to provide
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the raw gamma table, which contains successive gamma ramps for the red,
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green and blue channels. Each gamma ramp is an array of 16-byte unsigned
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integers which has the same length as the gamma size.
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The file descriptor data must have the same length as three times the
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gamma size.
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</description>
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<arg name="fd" type="fd" summary="gamma table file descriptor"/>
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</request>
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<event name="failed">
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<description summary="object no longer valid">
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This event indicates that the gamma control is no longer valid. This
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can happen for a number of reasons, including:
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- The output doesn't support gamma tables
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- Setting the gamma tables failed
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- Another client already has exclusive gamma control for this output
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- The compositor has transfered gamma control to another client
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Upon receiving this event, the client should destroy this object.
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</description>
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</event>
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<request name="destroy" type="destructor">
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<description summary="destroy this control">
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Destroys the gamma control object. If the object is still valid, this
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restores the original gamma tables.
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</description>
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</request>
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</interface>
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</protocol>
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@ -25,6 +25,7 @@ lib_wlr_types = static_library(
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'wlr_cursor.c',
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'wlr_export_dmabuf_v1.c',
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'wlr_gamma_control.c',
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'wlr_gamma_control_v1.c',
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'wlr_idle_inhibit_v1.c',
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'wlr_idle.c',
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'wlr_input_device.c',
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@ -25,7 +25,7 @@ static void gamma_control_destroy(struct wlr_gamma_control *gamma_control) {
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static const struct gamma_control_interface gamma_control_impl;
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struct wlr_gamma_control *gamma_control_from_resource(
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static struct wlr_gamma_control *gamma_control_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &gamma_control_interface,
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&gamma_control_impl));
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@ -83,7 +83,7 @@ static const struct gamma_control_interface gamma_control_impl = {
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static const struct gamma_control_manager_interface gamma_control_manager_impl;
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struct wlr_gamma_control_manager *gamma_control_manager_from_resource(
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static struct wlr_gamma_control_manager *gamma_control_manager_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &gamma_control_manager_interface,
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&gamma_control_manager_impl));
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@ -0,0 +1,244 @@
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#include <assert.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_gamma_control_v1.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/util/log.h>
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#include "wlr-gamma-control-unstable-v1-protocol.h"
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#include "util/signal.h"
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#define GAMMA_CONTROL_MANAGER_V1_VERSION 1
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static void gamma_control_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static void gamma_control_destroy(struct wlr_gamma_control_v1 *gamma_control) {
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if (gamma_control == NULL) {
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return;
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}
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// TODO: reset gamma table
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wl_resource_set_user_data(gamma_control->resource, NULL);
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wl_list_remove(&gamma_control->output_destroy_listener.link);
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wl_list_remove(&gamma_control->link);
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free(gamma_control);
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}
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static const struct zwlr_gamma_control_v1_interface gamma_control_impl;
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static struct wlr_gamma_control_v1 *gamma_control_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &zwlr_gamma_control_v1_interface,
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&gamma_control_impl));
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return wl_resource_get_user_data(resource);
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}
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static void gamma_control_handle_resource_destroy(struct wl_resource *resource) {
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struct wlr_gamma_control_v1 *gamma_control =
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gamma_control_from_resource(resource);
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gamma_control_destroy(gamma_control);
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}
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static void gamma_control_handle_output_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_gamma_control_v1 *gamma_control =
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wl_container_of(listener, gamma_control, output_destroy_listener);
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gamma_control_destroy(gamma_control);
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}
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static void gamma_control_handle_set_gamma(struct wl_client *client,
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struct wl_resource *gamma_control_resource, int fd) {
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struct wlr_gamma_control_v1 *gamma_control =
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gamma_control_from_resource(gamma_control_resource);
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if (gamma_control == NULL) {
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close(fd);
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return;
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}
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uint32_t ramp_size = wlr_output_get_gamma_size(gamma_control->output);
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size_t table_size = ramp_size * 3 * sizeof(uint16_t);
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off_t fd_size = lseek(fd, 0, SEEK_END);
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// Skip checks if kernel does no support seek on buffer
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if (fd_size != -1 && (size_t)fd_size != table_size) {
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close(fd);
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wl_resource_post_error(gamma_control_resource,
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ZWLR_GAMMA_CONTROL_V1_ERROR_INVALID_GAMMA,
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"The gamma ramps don't have the correct size");
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return;
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}
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lseek(fd, 0, SEEK_SET);
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// Use the heap since gamma tables can be large
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uint16_t *table = malloc(table_size);
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if (table == NULL) {
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close(fd);
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wl_resource_post_no_memory(gamma_control_resource);
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return;
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}
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ssize_t n_read = read(fd, table, table_size);
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close(fd);
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if (n_read == -1 || (size_t)n_read != table_size) {
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free(table);
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zwlr_gamma_control_v1_send_failed(gamma_control->resource);
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gamma_control_destroy(gamma_control);
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return;
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}
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uint16_t *r = table;
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uint16_t *g = table + ramp_size;
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uint16_t *b = table + 2 * ramp_size;
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bool ok = wlr_output_set_gamma(gamma_control->output, ramp_size, r, g, b);
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free(table);
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if (!ok) {
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zwlr_gamma_control_v1_send_failed(gamma_control->resource);
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gamma_control_destroy(gamma_control);
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return;
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}
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}
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static const struct zwlr_gamma_control_v1_interface gamma_control_impl = {
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.destroy = gamma_control_handle_destroy,
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.set_gamma = gamma_control_handle_set_gamma,
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};
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static const struct zwlr_gamma_control_manager_v1_interface
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gamma_control_manager_impl;
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static struct wlr_gamma_control_manager_v1 *gamma_control_manager_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&zwlr_gamma_control_manager_v1_interface, &gamma_control_manager_impl));
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return wl_resource_get_user_data(resource);
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}
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static void gamma_control_manager_get_gamma_control(struct wl_client *client,
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struct wl_resource *manager_resource, uint32_t id,
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struct wl_resource *output_resource) {
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struct wlr_gamma_control_manager_v1 *manager =
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gamma_control_manager_from_resource(manager_resource);
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struct wlr_output *output = wlr_output_from_resource(output_resource);
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struct wlr_gamma_control_v1 *gamma_control =
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calloc(1, sizeof(struct wlr_gamma_control_v1));
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if (gamma_control == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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gamma_control->output = output;
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uint32_t version = wl_resource_get_version(manager_resource);
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gamma_control->resource = wl_resource_create(client,
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&zwlr_gamma_control_v1_interface, version, id);
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if (gamma_control->resource == NULL) {
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free(gamma_control);
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wl_client_post_no_memory(client);
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return;
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}
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wl_resource_set_implementation(gamma_control->resource, &gamma_control_impl,
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gamma_control, gamma_control_handle_resource_destroy);
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wl_signal_add(&output->events.destroy,
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&gamma_control->output_destroy_listener);
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gamma_control->output_destroy_listener.notify =
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gamma_control_handle_output_destroy;
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wl_list_insert(&manager->controls, &gamma_control->link);
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if (!output->impl->set_gamma) {
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zwlr_gamma_control_v1_send_failed(gamma_control->resource);
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gamma_control_destroy(gamma_control);
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return;
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}
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struct wlr_gamma_control_v1 *gc;
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wl_list_for_each(gc, &manager->controls, link) {
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if (gc->output == output) {
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zwlr_gamma_control_v1_send_failed(gc->resource);
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gamma_control_destroy(gc);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
zwlr_gamma_control_v1_send_gamma_size(gamma_control->resource,
|
||||
wlr_output_get_gamma_size(output));
|
||||
}
|
||||
|
||||
static const struct zwlr_gamma_control_manager_v1_interface
|
||||
gamma_control_manager_impl = {
|
||||
.get_gamma_control = gamma_control_manager_get_gamma_control,
|
||||
};
|
||||
|
||||
static void gamma_control_manager_handle_resource_destroy(
|
||||
struct wl_resource *resource) {
|
||||
wl_list_remove(wl_resource_get_link(resource));
|
||||
}
|
||||
|
||||
static void gamma_control_manager_bind(struct wl_client *client, void *data,
|
||||
uint32_t version, uint32_t id) {
|
||||
struct wlr_gamma_control_manager_v1 *manager = data;
|
||||
|
||||
struct wl_resource *resource = wl_resource_create(client,
|
||||
&zwlr_gamma_control_manager_v1_interface, version, id);
|
||||
if (resource == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
wl_resource_set_implementation(resource, &gamma_control_manager_impl,
|
||||
manager, gamma_control_manager_handle_resource_destroy);
|
||||
wl_list_insert(&manager->resources, wl_resource_get_link(resource));
|
||||
}
|
||||
|
||||
void wlr_gamma_control_manager_v1_destroy(
|
||||
struct wlr_gamma_control_manager_v1 *manager) {
|
||||
if (!manager) {
|
||||
return;
|
||||
}
|
||||
wl_list_remove(&manager->display_destroy.link);
|
||||
struct wlr_gamma_control_v1 *gamma_control, *tmp;
|
||||
wl_list_for_each_safe(gamma_control, tmp, &manager->controls, link) {
|
||||
wl_resource_destroy(gamma_control->resource);
|
||||
}
|
||||
struct wl_resource *resource, *resource_tmp;
|
||||
wl_resource_for_each_safe(resource, resource_tmp, &manager->resources) {
|
||||
wl_resource_destroy(resource);
|
||||
}
|
||||
wl_global_destroy(manager->global);
|
||||
free(manager);
|
||||
}
|
||||
|
||||
static void handle_display_destroy(struct wl_listener *listener, void *data) {
|
||||
struct wlr_gamma_control_manager_v1 *manager =
|
||||
wl_container_of(listener, manager, display_destroy);
|
||||
wlr_gamma_control_manager_v1_destroy(manager);
|
||||
}
|
||||
|
||||
struct wlr_gamma_control_manager_v1 *wlr_gamma_control_manager_v1_create(
|
||||
struct wl_display *display) {
|
||||
struct wlr_gamma_control_manager_v1 *manager =
|
||||
calloc(1, sizeof(struct wlr_gamma_control_manager_v1));
|
||||
if (!manager) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
manager->global = wl_global_create(display,
|
||||
&zwlr_gamma_control_manager_v1_interface,
|
||||
GAMMA_CONTROL_MANAGER_V1_VERSION, manager, gamma_control_manager_bind);
|
||||
if (manager->global == NULL) {
|
||||
free(manager);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
wl_list_init(&manager->resources);
|
||||
wl_list_init(&manager->controls);
|
||||
|
||||
manager->display_destroy.notify = handle_display_destroy;
|
||||
wl_display_add_destroy_listener(display, &manager->display_destroy);
|
||||
|
||||
return manager;
|
||||
}
|
|
@ -552,11 +552,12 @@ void wlr_output_schedule_frame(struct wlr_output *output) {
|
|||
wl_event_loop_add_idle(ev, schedule_frame_handle_idle_timer, output);
|
||||
}
|
||||
|
||||
void wlr_output_set_gamma(struct wlr_output *output,
|
||||
uint32_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);
|
||||
bool wlr_output_set_gamma(struct wlr_output *output, uint32_t size,
|
||||
uint16_t *r, uint16_t *g, uint16_t *b) {
|
||||
if (!output->impl->set_gamma) {
|
||||
return false;
|
||||
}
|
||||
return output->impl->set_gamma(output, size, r, g, b);
|
||||
}
|
||||
|
||||
uint32_t wlr_output_get_gamma_size(struct wlr_output *output) {
|
||||
|
|
Loading…
Reference in New Issue