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wayland: Add color manager protocol support
Support the official wp_color_manager_v1 protocol.
1 parent 6ef687c commit fadb261

7 files changed

+2022
-6
lines changed

‎src/video/wayland/SDL_waylandcolor.c

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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#ifdef SDL_VIDEO_DRIVER_WAYLAND
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#include "SDL_waylandcolor.h"
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#include "SDL_waylandvideo.h"
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#include "SDL_waylandwindow.h"
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#include "color-management-v1-client-protocol.h"
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typedef struct Wayland_ColorInfoState
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{
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struct wp_image_description_v1 *wp_image_description;
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struct wp_image_description_info_v1 *wp_image_description_info;
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Wayland_ColorInfo *info;
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bool result;
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} Wayland_ColorInfoState;
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static void image_description_info_handle_done(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1)
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{
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Wayland_ColorInfoState *state = (Wayland_ColorInfoState *)data;
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if (state->wp_image_description_info) {
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wp_image_description_info_v1_destroy(state->wp_image_description_info);
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state->wp_image_description_info = NULL;
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}
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if (state->wp_image_description) {
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wp_image_description_v1_destroy(state->wp_image_description);
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state->wp_image_description = NULL;
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}
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state->result = true;
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}
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static void image_description_info_handle_icc_file(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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int32_t icc, uint32_t icc_size)
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{
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Wayland_ColorInfoState *state = (Wayland_ColorInfoState *)data;
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state->info->icc_fd = icc;
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state->info->icc_size = icc_size;
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}
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static void image_description_info_handle_primaries(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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int32_t r_x, int32_t r_y,
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int32_t g_x, int32_t g_y,
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int32_t b_x, int32_t b_y,
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int32_t w_x, int32_t w_y)
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{
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// NOP
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}
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static void image_description_info_handle_primaries_named(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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uint32_t primaries)
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{
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// NOP
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}
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static void image_description_info_handle_tf_power(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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uint32_t eexp)
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{
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// NOP
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}
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static void image_description_info_handle_tf_named(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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uint32_t tf)
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{
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// NOP
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}
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static void image_description_info_handle_luminances(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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uint32_t min_lum,
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uint32_t max_lum,
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uint32_t reference_lum)
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{
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Wayland_ColorInfoState *state = (Wayland_ColorInfoState *)data;
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state->info->HDR.HDR_headroom = (float)max_lum / (float)reference_lum;
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}
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static void image_description_info_handle_target_primaries(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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int32_t r_x, int32_t r_y,
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int32_t g_x, int32_t g_y,
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int32_t b_x, int32_t b_y,
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int32_t w_x, int32_t w_y)
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{
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// NOP
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}
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static void image_description_info_handle_target_luminance(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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uint32_t min_lum,
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uint32_t max_lum)
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{
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// NOP
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}
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static void image_description_info_handle_target_max_cll(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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uint32_t max_cll)
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{
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// NOP
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}
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static void image_description_info_handle_target_max_fall(void *data,
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struct wp_image_description_info_v1 *wp_image_description_info_v1,
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uint32_t max_fall)
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{
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// NOP
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}
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static const struct wp_image_description_info_v1_listener image_description_info_listener = {
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image_description_info_handle_done,
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image_description_info_handle_icc_file,
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image_description_info_handle_primaries,
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image_description_info_handle_primaries_named,
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image_description_info_handle_tf_power,
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image_description_info_handle_tf_named,
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image_description_info_handle_luminances,
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image_description_info_handle_target_primaries,
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image_description_info_handle_target_luminance,
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image_description_info_handle_target_max_cll,
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image_description_info_handle_target_max_fall
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};
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static void PumpColorspaceEvents(Wayland_ColorInfoState *state)
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{
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SDL_VideoData *vid = SDL_GetVideoDevice()->internal;
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// Run the image description sequence to completion in its own queue.
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struct wl_event_queue *queue = WAYLAND_wl_display_create_queue(vid->display);
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WAYLAND_wl_proxy_set_queue((struct wl_proxy *)state->wp_image_description, queue);
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while (state->wp_image_description) {
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WAYLAND_wl_display_dispatch_queue(vid->display, queue);
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}
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WAYLAND_wl_event_queue_destroy(queue);
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}
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static void image_description_handle_failed(void *data,
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struct wp_image_description_v1 *wp_image_description_v1,
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uint32_t cause,
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const char *msg)
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{
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Wayland_ColorInfoState *state = (Wayland_ColorInfoState *)data;
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wp_image_description_v1_destroy(state->wp_image_description);
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state->wp_image_description = NULL;
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}
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static void image_description_handle_ready(void *data,
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struct wp_image_description_v1 *wp_image_description_v1,
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uint32_t identity)
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{
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Wayland_ColorInfoState *state = (Wayland_ColorInfoState *)data;
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// This will inherit the queue of the factory image description object.
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state->wp_image_description_info = wp_image_description_v1_get_information(state->wp_image_description);
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wp_image_description_info_v1_add_listener(state->wp_image_description_info, &image_description_info_listener, data);
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}
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static const struct wp_image_description_v1_listener image_description_listener = {
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image_description_handle_failed,
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image_description_handle_ready
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};
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bool Wayland_GetColorInfoForWindow(SDL_WindowData *window_data, Wayland_ColorInfo *info)
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{
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Wayland_ColorInfoState state;
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SDL_zero(state);
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state.info = info;
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state.wp_image_description = wp_color_management_surface_feedback_v1_get_preferred(window_data->wp_color_management_surface_feedback);
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wp_image_description_v1_add_listener(state.wp_image_description, &image_description_listener, &state);
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PumpColorspaceEvents(&state);
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return state.result;
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}
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bool Wayland_GetColorInfoForOutput(SDL_DisplayData *display_data, Wayland_ColorInfo *info)
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{
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Wayland_ColorInfoState state;
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SDL_zero(state);
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state.info = info;
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state.wp_image_description = wp_color_management_output_v1_get_image_description(display_data->wp_color_management_output);
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wp_image_description_v1_add_listener(state.wp_image_description, &image_description_listener, &state);
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PumpColorspaceEvents(&state);
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return state.result;
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}
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#endif // SDL_VIDEO_DRIVER_WAYLAND

‎src/video/wayland/SDL_waylandcolor.h

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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
15+
in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#ifndef SDL_waylandcolor_h_
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#define SDL_waylandcolor_h_
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#include "../SDL_sysvideo.h"
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typedef struct Wayland_ColorInfo
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{
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SDL_HDROutputProperties HDR;
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// The ICC fd is only valid if the size is non-zero.
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int icc_fd;
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Uint32 icc_size;
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} Wayland_ColorInfo;
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extern bool Wayland_GetColorInfoForWindow(SDL_WindowData *window_data, Wayland_ColorInfo *info);
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extern bool Wayland_GetColorInfoForOutput(SDL_DisplayData *display_data, Wayland_ColorInfo *info);
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#endif // SDL_waylandcolor_h_

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