main neuswc / libswc / output.c
  1#include "output.h"
  2#include "drm.h"
  3#include "internal.h"
  4#include "mode.h"
  5#include "screen.h"
  6#include "util.h"
  7
  8#include <drm.h>
  9#include <stdio.h>
 10#include <stdlib.h>
 11#include <string.h>
 12#include <xf86drm.h>
 13
 14static const struct wl_output_interface output_impl = {
 15    .release = destroy_resource,
 16};
 17
 18static void
 19bind_output(struct wl_client *client, void *data, uint32_t version, uint32_t id)
 20{
 21	struct output *output = data;
 22	struct screen *screen = output->screen;
 23	struct mode *mode = &screen->planes.primary.mode;
 24	struct wl_resource *resource;
 25	uint32_t flags;
 26
 27	resource = wl_resource_create(client, &wl_output_interface, version, id);
 28
 29	if (!resource) {
 30		wl_client_post_no_memory(client);
 31		return;
 32	}
 33
 34	output->resource = resource;
 35	wl_resource_set_implementation(resource, &output_impl, output,
 36	                               &remove_resource);
 37	wl_list_insert(&output->resources, wl_resource_get_link(resource));
 38
 39	wl_output_send_geometry(resource, screen->base.geometry.x,
 40	                        screen->base.geometry.y, output->physical_width,
 41	                        output->physical_height, 0, "unknown", "unknown",
 42	                        WL_OUTPUT_TRANSFORM_NORMAL);
 43
 44	wl_array_for_each(mode, &output->modes)
 45	{
 46		flags = 0;
 47		if (mode->preferred) {
 48			flags |= WL_OUTPUT_MODE_PREFERRED;
 49		}
 50		if (mode_equal(&screen->planes.primary.mode, mode)) {
 51			flags |= WL_OUTPUT_MODE_CURRENT;
 52		}
 53
 54		wl_output_send_mode(resource, flags, mode->width, mode->height,
 55		                    mode->refresh);
 56	}
 57
 58	if (version >= 4) {
 59		wl_output_send_name(resource, output->name);
 60	}
 61
 62	if (version >= 2) {
 63		wl_output_send_done(resource);
 64	}
 65}
 66
 67struct output *
 68output_new(drmModeConnectorPtr connector)
 69{
 70	struct output *output;
 71	struct mode *modes;
 72	const char *name;
 73	uint32_t i;
 74
 75	if (!(output = malloc(sizeof(*output)))) {
 76		ERROR("Failed to allocated output\n");
 77		goto error0;
 78	}
 79
 80	output->global = wl_global_create(swc.display, &wl_output_interface, 4,
 81	                                  output, &bind_output);
 82
 83	if (!output->global) {
 84		ERROR("Failed to create output global\n");
 85		goto error1;
 86	}
 87
 88	output->physical_width = connector->mmWidth;
 89	output->physical_height = connector->mmHeight;
 90	output->preferred_mode = NULL;
 91
 92	wl_list_init(&output->resources);
 93	wl_array_init(&output->modes);
 94	pixman_region32_init(&output->current_damage);
 95	pixman_region32_init(&output->previous_damage);
 96
 97	output->connector = connector->connector_id;
 98
 99	if (connector->count_modes == 0) {
100		goto error2;
101	}
102
103	modes =
104	    wl_array_add(&output->modes, connector->count_modes * sizeof(*modes));
105	if (!modes) {
106		goto error2;
107	}
108
109	for (i = 0; i < connector->count_modes; ++i) {
110		mode_initialize(&modes[i], &connector->modes[i]);
111
112		if (modes[i].preferred) {
113			output->preferred_mode = &modes[i];
114		}
115	}
116
117	if (!output->preferred_mode) {
118		output->preferred_mode = &modes[0];
119	}
120
121	if (!(name = drmModeGetConnectorTypeName(connector->connector_type)))
122		name = "UNKNOWN";
123	snprintf(output->name, sizeof(output->name), "%s-%d", name, connector->connector_type_id);
124
125	return output;
126
127error2:
128	wl_global_destroy(output->global);
129error1:
130	free(output);
131error0:
132	return NULL;
133}
134
135void
136output_destroy(struct output *output)
137{
138	wl_array_release(&output->modes);
139	wl_global_destroy(output->global);
140	free(output);
141}