diff options
Diffstat (limited to 'src/compositor.c')
| -rw-r--r-- | src/compositor.c | 1769 |
1 files changed, 1769 insertions, 0 deletions
diff --git a/src/compositor.c b/src/compositor.c new file mode 100644 index 0000000..22c4979 --- /dev/null +++ b/src/compositor.c @@ -0,0 +1,1769 @@ +/* + * Copyright © 2012-2021 Collabora, Ltd. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "ivi-compositor.h" +#include "policy.h" + +#include <assert.h> +#include <errno.h> +#include <signal.h> +#include <stdarg.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <linux/input.h> + +#include <libweston/backend-drm.h> +#include <libweston/backend-wayland.h> +#include <libweston/backend-headless.h> +#ifdef HAVE_BACKEND_X11 +#include <libweston/backend-x11.h> +#endif +#include <libweston/libweston.h> +#include <libweston/windowed-output-api.h> +#include <libweston/config-parser.h> +#include <libweston/weston-log.h> +#include <weston/weston.h> + +#include "shared/os-compatibility.h" +#include "shared/helpers.h" + +#include "agl-shell-server-protocol.h" + +#ifdef HAVE_REMOTING +#include "remote.h" +#endif + +#ifdef HAVE_WALTHAM +#include <waltham-transmitter/transmitter_api.h> +#endif + +static int cached_tm_mday = -1; +static struct weston_log_scope *log_scope; + +struct ivi_compositor * +to_ivi_compositor(struct weston_compositor *ec) +{ + return weston_compositor_get_user_data(ec); +} + +static void +handle_output_destroy(struct wl_listener *listener, void *data) +{ + struct ivi_output *output; + + output = wl_container_of(listener, output, output_destroy); + assert(output->output == data); + + if (output->fullscreen_view.fs->view) { + weston_surface_destroy(output->fullscreen_view.fs->view->surface); + output->fullscreen_view.fs->view = NULL; + } + + output->output = NULL; + wl_list_remove(&output->output_destroy.link); +} + +struct ivi_output * +to_ivi_output(struct weston_output *o) +{ + struct wl_listener *listener; + struct ivi_output *output; + + listener = weston_output_get_destroy_listener(o, handle_output_destroy); + output = wl_container_of(listener, output, output_destroy); + + return output; +} + +static void +ivi_output_configure_app_id(struct ivi_output *ivi_output) +{ + if (ivi_output->config) { + if (ivi_output->app_id != NULL) + return; + + weston_config_section_get_string(ivi_output->config, + "agl-shell-app-id", + &ivi_output->app_id, + NULL); + + if (ivi_output->app_id == NULL) + return; + + weston_log("Will place app_id %s on output %s\n", + ivi_output->app_id, ivi_output->name); + } +} + +static struct ivi_output * +ivi_ensure_output(struct ivi_compositor *ivi, char *name, + struct weston_config_section *config) +{ + struct ivi_output *output = NULL; + wl_list_for_each(output, &ivi->outputs, link) { + if (strcmp(output->name, name) == 0) { + free(name); + return output; + } + } + + output = zalloc(sizeof *output); + if (!output) { + free(name); + return NULL; + } + + output->ivi = ivi; + output->name = name; + output->config = config; + + output->output = weston_compositor_create_output(ivi->compositor, name); + if (!output->output) { + free(output->name); + free(output); + return NULL; + } + + output->output_destroy.notify = handle_output_destroy; + weston_output_add_destroy_listener(output->output, + &output->output_destroy); + + wl_list_insert(&ivi->outputs, &output->link); + ivi_output_configure_app_id(output); + return output; +} + +static int +count_heads(struct weston_output *output) +{ + struct weston_head *iter = NULL; + int n = 0; + + while ((iter = weston_output_iterate_heads(output, iter))) + ++n; + + return n; +} + +static void +handle_head_destroy(struct wl_listener *listener, void *data) +{ + struct weston_head *head = data; + struct weston_output *output; + + wl_list_remove(&listener->link); + free(listener); + + output = weston_head_get_output(head); + + /* On shutdown path, the output might be already gone. */ + if (!output) + return; + + /* We're the last head */ + if (count_heads(output) <= 1) + weston_output_destroy(output); +} + +static void +add_head_destroyed_listener(struct weston_head *head) +{ + /* We already have a destroy listener */ + if (weston_head_get_destroy_listener(head, handle_head_destroy)) + return; + + struct wl_listener *listener = zalloc(sizeof *listener); + if (!listener) + return; + + listener->notify = handle_head_destroy; + weston_head_add_destroy_listener(head, listener); +} + +static int +drm_configure_output(struct ivi_output *output) +{ + struct ivi_compositor *ivi = output->ivi; + struct weston_config_section *section = output->config; + enum weston_drm_backend_output_mode mode = + WESTON_DRM_BACKEND_OUTPUT_PREFERRED; + char *modeline = NULL; + char *gbm_format = NULL; + char *seat = NULL; + + if (section) { + char *m; + weston_config_section_get_string(section, "mode", &m, "preferred"); + + /* This should have been handled earlier */ + assert(strcmp(m, "off") != 0); + + if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) { + mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT; + } else if (strcmp(m, "preferred") != 0) { + modeline = m; + m = NULL; + } + free(m); + + weston_config_section_get_string(section, "gbm-format", + &gbm_format, NULL); + + weston_config_section_get_string(section, "seat", &seat, ""); + } + + if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) { + weston_log("Cannot configure output using weston_drm_output_api.\n"); + free(modeline); + return -1; + } + free(modeline); + + ivi->drm_api->set_gbm_format(output->output, gbm_format); + free(gbm_format); + + ivi->drm_api->set_seat(output->output, seat); + free(seat); + + return 0; +} + +#define WINDOWED_DEFAULT_WIDTH 1024 +#define WINDOWED_DEFAULT_HEIGHT 768 + +static int +windowed_configure_output(struct ivi_output *output) +{ + struct ivi_compositor *ivi = output->ivi; + struct weston_config_section *section = output->config; + int width = WINDOWED_DEFAULT_WIDTH; + int height = WINDOWED_DEFAULT_HEIGHT; + + if (section) { + char *mode; + + weston_config_section_get_string(section, "mode", &mode, NULL); + if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) { + weston_log("Invalid mode for output %s. Using defaults.\n", + output->name); + width = WINDOWED_DEFAULT_WIDTH; + height = WINDOWED_DEFAULT_HEIGHT; + } + free(mode); + } + + if (ivi->cmdline.width) + width = ivi->cmdline.width; + if (ivi->cmdline.height) + height = ivi->cmdline.height; + if (ivi->cmdline.scale) + weston_output_set_scale(output->output, ivi->cmdline.scale); + + if (ivi->window_api->output_set_size(output->output, width, height) < 0) { + weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n", + output->name); + return -1; + } + + weston_log("Configured windowed_output_api to %dx%d\n", width, height); + + return 0; +} + +static int +parse_transform(const char *transform, uint32_t *out) +{ + static const struct { const char *name; uint32_t token; } transforms[] = { + { "normal", WL_OUTPUT_TRANSFORM_NORMAL }, + { "90", WL_OUTPUT_TRANSFORM_90 }, + { "180", WL_OUTPUT_TRANSFORM_180 }, + { "270", WL_OUTPUT_TRANSFORM_270 }, + { "flipped", WL_OUTPUT_TRANSFORM_FLIPPED }, + { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 }, + { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 }, + { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 }, + }; + + for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++) + if (strcmp(transforms[i].name, transform) == 0) { + *out = transforms[i].token; + return 0; + } + + *out = WL_OUTPUT_TRANSFORM_NORMAL; + return -1; +} + +static int +configure_output(struct ivi_output *output) +{ + struct ivi_compositor *ivi = output->ivi; + struct weston_config_section *section = output->config; + int32_t scale = 1; + uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL; + + /* + * This can happen with the wayland backend with 'sprawl'. The config + * is hard-coded, so we don't need to do anything. + */ + if (!ivi->drm_api && !ivi->window_api) + return 0; + + if (section) { + char *t; + + weston_config_section_get_int(section, "scale", &scale, 1); + weston_config_section_get_string(section, "transform", &t, "normal"); + if (parse_transform(t, &transform) < 0) + weston_log("Invalid transform \"%s\" for output %s\n", + t, output->name); + free(t); + } + + weston_output_set_scale(output->output, scale); + weston_output_set_transform(output->output, transform); + + if (ivi->drm_api) + return drm_configure_output(output); + else + return windowed_configure_output(output); +} + +/* + * Reorgainizes the output's add array into two sections. + * add[0..ret-1] are the heads that failed to get attached. + * add[ret..add_len] are the heads that were successfully attached. + * + * The order between elements in each section is stable. + */ +static size_t +try_attach_heads(struct ivi_output *output) +{ + size_t fail_len = 0; + + for (size_t i = 0; i < output->add_len; ++i) { + if (weston_output_attach_head(output->output, output->add[i]) < 0) { + struct weston_head *tmp = output->add[i]; + memmove(&output->add[fail_len + 1], output->add[fail_len], + sizeof output->add[0] * (i - fail_len)); + output->add[fail_len++] = tmp; + } + } + + return fail_len; +} + +/* + * Like try_attach_heads, this reorganizes the output's add array into a failed + * and successful section. + * i is the number of heads that already failed the previous step. + */ +static size_t +try_enable_output(struct ivi_output *output, size_t i) +{ + for (; i < output->add_len; ++i) { + struct weston_head *head; + + if (weston_output_enable(output->output) == 0) + break; + + head = output->add[output->add_len - 1]; + memmove(&output->add[i + 1], &output->add[i], + sizeof output->add[0] * (output->add_len - i)); + output->add[i] = head; + + weston_head_detach(head); + } + + return i; +} + +static int +try_attach_enable_heads(struct ivi_output *output) +{ + size_t fail_len; + assert(!output->output->enabled); + + fail_len = try_attach_heads(output); + + if (configure_output(output) < 0) + return -1; + + fail_len = try_enable_output(output, fail_len); + + /* All heads failed to be attached */ + if (fail_len == output->add_len) + return -1; + + /* For each successful head attached */ + for (size_t i = fail_len; i < output->add_len; ++i) + add_head_destroyed_listener(output->add[i]); + + output->add_len = fail_len; + return 0; +} + +static int +process_output(struct ivi_output *output) +{ + if (output->output->enabled) { + output->add_len = try_attach_heads(output); + return output->add_len == 0 ? 0 : -1; + } + + return try_attach_enable_heads(output); +} + +static void +head_disable(struct ivi_compositor *ivi, struct weston_head *head) +{ + struct weston_output *output; + struct ivi_output *ivi_output; + struct wl_listener *listener; + + output = weston_head_get_output(head); + assert(output); + + listener = weston_output_get_destroy_listener(output, + handle_output_destroy); + assert(listener); + + ivi_output = wl_container_of(listener, ivi_output, output_destroy); + assert(ivi_output->output == output); + + weston_head_detach(head); + if (count_heads(ivi_output->output) == 0) { + weston_output_disable(ivi_output->output); + } +} + +static struct weston_config_section * +find_controlling_output_config(struct weston_config *config, + const char *name) +{ + struct weston_config_section *section; + char *same_as; + int depth = 0; + + same_as = strdup(name); + do { + section = weston_config_get_section(config, "output", + "name", same_as); + if (!section && depth > 0) + weston_log("Configuration error: output section reffered" + "to by same-as=%s not found.\n", same_as); + free(same_as); + + if (!section) + return NULL; + + if (depth++ > 8) { + weston_log("Configuration error: same-as nested too " + "deep for output '%s'.\n", name); + return NULL; + } + + weston_config_section_get_string(section, "same-as", + &same_as, NULL); + } while (same_as); + + return section; +} + +static void +head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head) +{ + const char *name = weston_head_get_name(head); + struct weston_config_section *section; + struct ivi_output *output; + char *output_name = NULL; + + section = find_controlling_output_config(ivi->config, name); + if (section) { + char *mode; + + weston_config_section_get_string(section, "mode", &mode, NULL); + if (mode && strcmp(mode, "off") == 0) { + free(mode); + return; + } + free(mode); + + weston_config_section_get_string(section, "name", + &output_name, NULL); + } else { + output_name = strdup(name); + } + + if (!output_name) + return; + + output = ivi_ensure_output(ivi, output_name, section); + if (!output) + return; + + if (output->add_len >= ARRAY_LENGTH(output->add)) + return; + + output->add[output->add_len++] = head; +} + +static void +heads_changed(struct wl_listener *listener, void *arg) +{ + struct weston_compositor *compositor = arg; + struct weston_head *head = NULL; + struct ivi_compositor *ivi = to_ivi_compositor(compositor); + struct ivi_output *output; + + while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) { + bool connected = weston_head_is_connected(head); + bool enabled = weston_head_is_enabled(head); + bool changed = weston_head_is_device_changed(head); + bool non_desktop = weston_head_is_non_desktop(head); + + if (connected && !enabled && !non_desktop) + head_prepare_enable(ivi, head); + else if (!connected && enabled) + head_disable(ivi, head); + else if (enabled && changed) + weston_log("Detected a monitor change on head '%s', " + "not bothering to do anything about it.\n", + weston_head_get_name(head)); + + weston_head_reset_device_changed(head); + } + + wl_list_for_each(output, &ivi->outputs, link) { + if (output->add_len == 0) + continue; + + if (process_output(output) < 0) { + output->add_len = 0; + ivi->init_failed = true; + } + } +} + +#ifdef HAVE_WALTHAM +static int +load_waltham_plugin(struct ivi_compositor *ivi, struct weston_config *config) +{ + struct weston_compositor *compositor = ivi->compositor; + int (*module_init)(struct weston_compositor *wc); + + module_init = weston_load_module("waltham-transmitter.so", + "wet_module_init"); + if (!module_init) + return -1; + + if (module_init(compositor) < 0) + return -1; + + ivi->waltham_transmitter_api = weston_get_transmitter_api(compositor); + if (!ivi->waltham_transmitter_api) { + weston_log("Failed to load waltham-transmitter plugin.\n"); + return -1; + } + + weston_log("waltham-transmitter plug-in loaded\n"); + return 0; +} +#else +static int +load_waltham_plugin(struct ivi_compositor *ivi, struct weston_config *config) +{ + return -1; +} +#endif + +#ifdef HAVE_REMOTING +static int +drm_backend_remoted_output_configure(struct weston_output *output, + struct weston_config_section *section, + char *modeline, + const struct weston_remoting_api *api) +{ + char *gbm_format = NULL; + char *seat = NULL; + char *host = NULL; + char *pipeline = NULL; + int port, ret; + int32_t scale = 1; + uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL; + char *trans; + + ret = api->set_mode(output, modeline); + if (ret < 0) { + weston_log("Cannot configure an output \"%s\" using " + "weston_remoting_api. Invalid mode\n", + output->name); + return -1; + } + + weston_config_section_get_int(section, "scale", &scale, 1); + weston_output_set_scale(output, scale); + + weston_config_section_get_string(section, "transform", &trans, "normal"); + if (parse_transform(trans, &transform) < 0) { + weston_log("Invalid transform \"%s\" for output %s\n", + trans, output->name); + } + weston_output_set_transform(output, transform); + + weston_config_section_get_string(section, "gbm-format", + &gbm_format, NULL); + api->set_gbm_format(output, gbm_format); + free(gbm_format); + + weston_config_section_get_string(section, "seat", &seat, ""); + + api->set_seat(output, seat); + free(seat); + + weston_config_section_get_string(section, "gst-pipeline", &pipeline, + NULL); + if (pipeline) { + api->set_gst_pipeline(output, pipeline); + free(pipeline); + return 0; + } + + weston_config_section_get_string(section, "host", &host, NULL); + weston_config_section_get_int(section, "port", &port, 0); + if (!host || port <= 0 || 65533 < port) { + weston_log("Cannot configure an output \"%s\". " + "Need to specify gst-pipeline or " + "host and port (1-65533).\n", output->name); + } + api->set_host(output, host); + free(host); + api->set_port(output, port); + + return 0; +} + + +static int +remote_output_init(struct ivi_output *ivi_output, + struct weston_compositor *compositor, + struct weston_config_section *section, + const struct weston_remoting_api *api) +{ + char *output_name, *modeline = NULL; + int ret = -1; + + weston_config_section_get_string(section, "name", &output_name, NULL); + if (!output_name) + return ret; + + weston_config_section_get_string(section, "mode", &modeline, "off"); + if (strcmp(modeline, "off") == 0) + goto err; + + ivi_output->output = api->create_output(compositor, output_name); + if (!ivi_output->output) { + weston_log("Cannot create remoted output \"%s\".\n", + output_name); + goto err; + } + + ret = drm_backend_remoted_output_configure(ivi_output->output, section, + modeline, api); + if (ret < 0) { + weston_log("Cannot configure remoted output \"%s\".\n", + output_name); + goto err; + } + + if (weston_output_enable(ivi_output->output) < 0) { + weston_log("Enabling remoted output \"%s\" failed.\n", + output_name); + goto err; + } + + free(modeline); + free(output_name); + weston_log("remoted output '%s' enabled\n", ivi_output->output->name); + + return 0; + +err: + free(modeline); + free(output_name); + if (ivi_output->output) + weston_output_destroy(ivi_output->output); + + return ret; +} + +static void +ivi_enable_remote_outputs(struct ivi_compositor *ivi) +{ + struct weston_config_section *remote_section = NULL; + const char *section_name; + struct weston_config *config = ivi->config; + + while (weston_config_next_section(config, &remote_section, §ion_name)) { + if (strcmp(section_name, "remote-output")) + continue; + + struct ivi_output *ivi_output = NULL; + bool output_found = false; + char *_name = NULL; + + weston_config_section_get_string(remote_section, + "name", &_name, NULL); + wl_list_for_each(ivi_output, &ivi->outputs, link) { + if (!strcmp(ivi_output->name, _name)) { + output_found = true; + break; + } + } + + if (output_found) { + free(_name); + continue; + } + + ivi_output = zalloc(sizeof(*ivi_output)); + + ivi_output->ivi = ivi; + ivi_output->name = _name; + ivi_output->config = remote_section; + ivi_output->type = OUTPUT_REMOTE; + + if (remote_output_init(ivi_output, ivi->compositor, + remote_section, ivi->remoting_api)) { + free(ivi_output->name); + free(ivi_output); + continue; + } + + ivi_output->output_destroy.notify = handle_output_destroy; + weston_output_add_destroy_listener(ivi_output->output, + &ivi_output->output_destroy); + + wl_list_insert(&ivi->outputs, &ivi_output->link); + ivi_output_configure_app_id(ivi_output); + } +} + +static void +ivi_enable_waltham_outputs(struct ivi_compositor *ivi) +{ + struct weston_config_section *transmitter_section = NULL; + const char *sect_name; + struct weston_config *config = ivi->config; + + while (weston_config_next_section(config, &transmitter_section, §_name)) { + if (strcmp(sect_name, "transmitter-output")) + continue; + + struct ivi_output *ivi_output = NULL; + bool output_found = false; + char *_name = NULL; + + weston_config_section_get_string(transmitter_section, + "name", &_name, NULL); + wl_list_for_each(ivi_output, &ivi->outputs, link) { + if (!strcmp(ivi_output->name, _name)) { + output_found = true; + break; + } + } + + if (output_found) { + free(_name); + continue; + } + + ivi_output = zalloc(sizeof(*ivi_output)); + + ivi_output->ivi = ivi; + ivi_output->name = _name; + ivi_output->config = transmitter_section; + + if (remote_output_init(ivi_output, ivi->compositor, + transmitter_section, ivi->remoting_api)) { + free(ivi_output->name); + free(ivi_output); + continue; + } + + ivi_output->type = OUTPUT_WALTHAM; + ivi_output->output_destroy.notify = handle_output_destroy; + weston_output_add_destroy_listener(ivi_output->output, + &ivi_output->output_destroy); + + wl_list_insert(&ivi->outputs, &ivi_output->link); + ivi_output_configure_app_id(ivi_output); + } +} + +static int +load_remoting_plugin(struct ivi_compositor *ivi, struct weston_config *config) +{ + struct weston_compositor *compositor = ivi->compositor; + int (*module_init)(struct weston_compositor *wc); + + module_init = weston_load_module("remoting-plugin.so", + "weston_module_init"); + if (!module_init) + return -1; + + if (module_init(compositor) < 0) + return -1; + + ivi->remoting_api = weston_remoting_get_api(compositor); + if (!ivi->remoting_api) + return -1; + return 0; +} +#else +static int +load_remoting_plugin(struct weston_compositor *compositor, struct weston_config *config) +{ + return -1; +} +#endif + +static int +load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[]) +{ + struct weston_drm_backend_config config = { + .base = { + .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION, + .struct_size = sizeof config, + }, + }; + struct weston_config_section *section; + int use_current_mode = 0; + int use_pixman = 0; + bool use_shadow; + int ret; + + const struct weston_option options[] = { + { WESTON_OPTION_STRING, "seat", 0, &config.seat_id }, + { WESTON_OPTION_INTEGER, "tty", 0, &config.tty }, + { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device }, + { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode }, + { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman }, + }; + + parse_options(options, ARRAY_LENGTH(options), argc, argv); + config.use_pixman = use_pixman; + ivi->cmdline.use_current_mode = use_current_mode; + + section = weston_config_get_section(ivi->config, "core", NULL, NULL); + weston_config_section_get_string(section, "gbm-format", + &config.gbm_format, NULL); + weston_config_section_get_uint(section, "pageflip-timeout", + &config.pageflip_timeout, 0); + weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1); + config.use_pixman_shadow = use_shadow; + + ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM, + &config.base); + if (ret < 0) + return ret; + + ivi->drm_api = weston_drm_output_get_api(ivi->compositor); + if (!ivi->drm_api) { + weston_log("Cannot use drm output api.\n"); + ret = -1; + goto error; + } + + load_remoting_plugin(ivi, ivi->config); + load_waltham_plugin(ivi, ivi->config); + +error: + free(config.gbm_format); + free(config.seat_id); + return ret; +} + +static void +windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[], + bool *use_pixman, bool *fullscreen, int *output_count) +{ + struct weston_config_section *section; + bool pixman; + int fs = 0; + + const struct weston_option options[] = { + { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width }, + { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height }, + { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale }, + { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &pixman }, + { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs }, + { WESTON_OPTION_INTEGER, "output-count", 0, output_count }, + }; + + section = weston_config_get_section(ivi->config, "core", NULL, NULL); + weston_config_section_get_bool(section, "use-pixman", &pixman, 0); + + *output_count = 1; + parse_options(options, ARRAY_LENGTH(options), argc, argv); + *use_pixman = pixman; + *fullscreen = fs; +} + +static int +windowed_create_outputs(struct ivi_compositor *ivi, int output_count, + const char *match_prefix, const char *name_prefix) +{ + struct weston_config_section *section = NULL; + const char *section_name; + char *default_output = NULL; + int i = 0; + size_t match_len = strlen(match_prefix); + + while (weston_config_next_section(ivi->config, §ion, §ion_name)) { + char *output_name; + + if (i >= output_count) + break; + + if (strcmp(section_name, "output") != 0) + continue; + + weston_config_section_get_string(section, "name", &output_name, NULL); + if (output_name == NULL) + continue; + if (strncmp(output_name, match_prefix, match_len) != 0) { + free(output_name); + continue; + } + + if (ivi->window_api->create_head(ivi->compositor, output_name) < 0) { + free(output_name); + return -1; + } + + free(output_name); + ++i; + } + + for (; i < output_count; ++i) { + if (asprintf(&default_output, "%s%d", name_prefix, i) < 0) + return -1; + + if (ivi->window_api->create_head(ivi->compositor, default_output) < 0) { + free(default_output); + return -1; + } + + free(default_output); + } + + return 0; +} + +static int +load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[]) +{ + struct weston_wayland_backend_config config = { + .base = { + .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION, + .struct_size = sizeof config, + }, + }; + struct weston_config_section *section; + int sprawl = 0; + int output_count; + int ret; + + const struct weston_option options[] = { + { WESTON_OPTION_STRING, "display", 0, &config.display_name }, + { WESTON_OPTION_STRING, "sprawl", 0, &sprawl }, + }; + + windowed_parse_common_options(ivi, argc, argv, &config.use_pixman, + &config.fullscreen, &output_count); + + parse_options(options, ARRAY_LENGTH(options), argc, argv); + config.sprawl = sprawl; + + section = weston_config_get_section(ivi->config, "shell", NULL, NULL); + weston_config_section_get_string(section, "cursor-theme", + &config.cursor_theme, NULL); + weston_config_section_get_int(section, "cursor-size", + &config.cursor_size, 32); + + ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND, + &config.base); + + free(config.cursor_theme); + free(config.display_name); + + if (ret < 0) + return ret; + + ivi->window_api = weston_windowed_output_get_api(ivi->compositor); + + /* + * We will just assume if load_backend() finished cleanly and + * windowed_output_api is not present that wayland backend is started + * with --sprawl or runs on fullscreen-shell. In this case, all values + * are hardcoded, so nothing can be configured; simply create and + * enable an output. + */ + if (ivi->window_api == NULL) + return 0; + + return windowed_create_outputs(ivi, output_count, "WL", "wayland"); +} + +#ifdef HAVE_BACKEND_X11 +static int +load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[]) +{ + struct weston_x11_backend_config config = { + .base = { + .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION, + .struct_size = sizeof config, + }, + }; + int no_input = 0; + int output_count; + int ret; + + const struct weston_option options[] = { + { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input }, + }; + + windowed_parse_common_options(ivi, argc, argv, &config.use_pixman, + &config.fullscreen, &output_count); + + parse_options(options, ARRAY_LENGTH(options), argc, argv); + config.no_input = no_input; + + ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11, + &config.base); + + if (ret < 0) + return ret; + + ivi->window_api = weston_windowed_output_get_api(ivi->compositor); + if (!ivi->window_api) { + weston_log("Cannot use weston_windowed_output_api.\n"); + return -1; + } + + return windowed_create_outputs(ivi, output_count, "X", "screen"); +} +#else +static int +load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[]) +{ + return -1; +} +#endif + +static int +load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv) +{ + struct weston_headless_backend_config config = {}; + int ret = 0; + + bool use_pixman; + bool fullscreen; + bool use_gl; + int output_count; + + struct weston_compositor *c = ivi->compositor; + + const struct weston_option options[] = { + { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman }, + { WESTON_OPTION_BOOLEAN, "use-gl", 0, &use_gl }, + }; + + windowed_parse_common_options(ivi, argc, argv, &use_pixman, + &fullscreen, &output_count); + + parse_options(options, ARRAY_LENGTH(options), argc, argv); + config.use_pixman = use_pixman; + config.use_gl = use_gl; + + config.base.struct_version = WESTON_HEADLESS_BACKEND_CONFIG_VERSION; + config.base.struct_size = sizeof(struct weston_headless_backend_config); + + /* load the actual headless-backend and configure it */ + ret = weston_compositor_load_backend(c, WESTON_BACKEND_HEADLESS, + &config.base); + if (ret < 0) + return ret; + + ivi->window_api = weston_windowed_output_get_api(c); + if (!ivi->window_api) { + weston_log("Cannot use weston_windowed_output_api.\n"); + return -1; + } + + if (ivi->window_api->create_head(c, "headless") < 0) { + weston_log("Cannot create headless back-end\n"); + return -1; + } + + return 0; +} + +static int +load_backend(struct ivi_compositor *ivi, const char *backend, + int *argc, char *argv[]) +{ + if (strcmp(backend, "drm-backend.so") == 0) { + return load_drm_backend(ivi, argc, argv); + } else if (strcmp(backend, "wayland-backend.so") == 0) { + return load_wayland_backend(ivi, argc, argv); + } else if (strcmp(backend, "x11-backend.so") == 0) { + return load_x11_backend(ivi, argc, argv); + } else if (strcmp(backend, "headless-backend.so") == 0) { + return load_headless_backend(ivi, argc, argv); + } + + weston_log("fatal: unknown backend '%s'.\n", backend); + return -1; +} + +static int +load_modules(struct ivi_compositor *ivi, const char *modules, + int *argc, char *argv[], bool *xwayland) +{ + const char *p, *end; + char buffer[256]; + int (*module_init)(struct weston_compositor *wc, int argc, char *argv[]); + + if (modules == NULL) + return 0; + + p = modules; + while (*p) { + end = strchrnul(p, ','); + snprintf(buffer, sizeof buffer, "%.*s", (int) (end - p), p); + + if (strstr(buffer, "xwayland.so")) { + weston_log("Xwayland plug-in not supported!\n"); + p = end; + while (*p == ',') + p++; + continue; + } + + module_init = weston_load_module(buffer, "wet_module_init"); + if (!module_init) + return -1; + + if (module_init(ivi->compositor, *argc, argv) < 0) + return -1; + + p = end; + while (*p == ',') + p++; + } + + return 0; +} + + +static char * +choose_default_backend(void) +{ + char *backend = NULL; + + if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET")) + backend = strdup("wayland-backend.so"); + else if (getenv("DISPLAY")) + backend = strdup("x11-backend.so"); + else + backend = strdup("drm-backend.so"); + + return backend; +} + +static int +compositor_init_config(struct weston_compositor *compositor, + struct weston_config *config) +{ + struct xkb_rule_names xkb_names; + struct weston_config_section *section; + int repaint_msec; + bool vt_switching; + bool require_input; + + /* agl-compositor.ini [keyboard] */ + section = weston_config_get_section(config, "keyboard", NULL, NULL); + weston_config_section_get_string(section, "keymap_rules", + (char **) &xkb_names.rules, NULL); + weston_config_section_get_string(section, "keymap_model", + (char **) &xkb_names.model, NULL); + weston_config_section_get_string(section, "keymap_layout", + (char **) &xkb_names.layout, NULL); + weston_config_section_get_string(section, "keymap_variant", + (char **) &xkb_names.variant, NULL); + weston_config_section_get_string(section, "keymap_options", + (char **) &xkb_names.options, NULL); + + if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0) + return -1; + + weston_config_section_get_int(section, "repeat-rate", + &compositor->kb_repeat_rate, 40); + weston_config_section_get_int(section, "repeat-delay", + &compositor->kb_repeat_delay, 400); + + weston_config_section_get_bool(section, "vt-switching", + &vt_switching, true); + compositor->vt_switching = vt_switching; + + /* agl-compositor.ini [core] */ + section = weston_config_get_section(config, "core", NULL, NULL); + + weston_config_section_get_bool(section, "require-input", &require_input, true); + compositor->require_input = require_input; + + weston_config_section_get_int(section, "repaint-window", &repaint_msec, + compositor->repaint_msec); + if (repaint_msec < -10 || repaint_msec > 1000) { + weston_log("Invalid repaint_window value in config: %d\n", + repaint_msec); + } else { + compositor->repaint_msec = repaint_msec; + } + weston_log("Output repaint window is %d ms maximum.\n", + compositor->repaint_msec); + + return 0; +} + +struct ivi_surface * +to_ivi_surface(struct weston_surface *surface) +{ + struct weston_desktop_surface *dsurface; + + dsurface = weston_surface_get_desktop_surface(surface); + if (!dsurface) + return NULL; + + return weston_desktop_surface_get_user_data(dsurface); +} + +static void +activate_binding(struct weston_seat *seat, + struct weston_view *focus_view) +{ + struct weston_surface *focus = focus_view->surface; + struct weston_surface *main_surface = + weston_surface_get_main_surface(focus); + struct ivi_surface *surface; + + surface = to_ivi_surface(main_surface); + if (!surface) + return; + + weston_seat_set_keyboard_focus(seat, focus); +} + +static void +click_to_activate_binding(struct weston_pointer *pointer, + const struct timespec *time, + uint32_t button, void *data) +{ + if (pointer->grab != &pointer->default_grab) + return; + if (pointer->focus == NULL) + return; + + activate_binding(pointer->seat, pointer->focus); +} + +static void +touch_to_activate_binding(struct weston_touch *touch, + const struct timespec *time, + void *data) +{ + if (touch->grab != &touch->default_grab) + return; + if (touch->focus == NULL) + return; + + activate_binding(touch->seat, touch->focus); +} + +static void +add_bindings(struct weston_compositor *compositor) +{ + weston_compositor_add_button_binding(compositor, BTN_LEFT, 0, + click_to_activate_binding, + NULL); + weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0, + click_to_activate_binding, + NULL); + weston_compositor_add_touch_binding(compositor, 0, + touch_to_activate_binding, + NULL); +} + +static int +create_listening_socket(struct wl_display *display, const char *socket_name) +{ + if (socket_name) { + if (wl_display_add_socket(display, socket_name)) { + weston_log("fatal: failed to add socket: %s\n", + strerror(errno)); + return -1; + } + } else { + socket_name = wl_display_add_socket_auto(display); + if (!socket_name) { + weston_log("fatal: failed to add socket: %s\n", + strerror(errno)); + return -1; + } + } + + setenv("WAYLAND_DISPLAY", socket_name, 1); + + return 0; +} + +static bool +global_filter(const struct wl_client *client, const struct wl_global *global, + void *data) +{ + return true; +} + +static int +load_config(struct weston_config **config, bool no_config, + const char *config_file) +{ + const char *file = "agl-compositor.ini"; + const char *full_path; + + if (config_file) + file = config_file; + + if (!no_config) + *config = weston_config_parse(file); + + if (*config) { + full_path = weston_config_get_full_path(*config); + + weston_log("Using config file '%s'.\n", full_path); + setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1); + + return 0; + } + + if (config_file && !no_config) { + weston_log("fatal: error opening or reading config file '%s'.\n", + config_file); + + return -1; + } + + weston_log("Starting with no config file.\n"); + setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1); + + return 0; +} + +static FILE *logfile; + +static char * +log_timestamp(char *buf, size_t len) +{ + struct timeval tv; + struct tm *brokendown_time; + char datestr[128]; + char timestr[128]; + + gettimeofday(&tv, NULL); + + brokendown_time = localtime(&tv.tv_sec); + if (brokendown_time == NULL) { + snprintf(buf, len, "%s", "[(NULL)localtime] "); + return buf; + } + + memset(datestr, 0, sizeof(datestr)); + if (brokendown_time->tm_mday != cached_tm_mday) { + strftime(datestr, sizeof(datestr), "Date: %Y-%m-%d %Z\n", + brokendown_time); + cached_tm_mday = brokendown_time->tm_mday; + } + + strftime(timestr, sizeof(timestr), "%H:%M:%S", brokendown_time); + /* if datestr is empty it prints only timestr*/ + snprintf(buf, len, "%s[%s.%03li]", datestr, + timestr, (tv.tv_usec / 1000)); + + return buf; +} + +static void +custom_handler(const char *fmt, va_list arg) +{ + char timestr[512]; + + weston_log_scope_printf(log_scope, "%s libwayland: ", + log_timestamp(timestr, sizeof(timestr))); + weston_log_scope_vprintf(log_scope, fmt, arg); +} + +static void +log_file_open(const char *filename) +{ + wl_log_set_handler_server(custom_handler); + + if (filename) + logfile = fopen(filename, "a"); + + if (!logfile) { + logfile = stderr; + } else { + os_fd_set_cloexec(fileno(logfile)); + setvbuf(logfile, NULL, _IOLBF, 256); + } +} + +static void +log_file_close(void) +{ + if (logfile && logfile != stderr) + fclose(logfile); + logfile = stderr; +} + +static int +vlog(const char *fmt, va_list ap) +{ + const char *oom = "Out of memory"; + char timestr[128]; + int len = 0; + char *str; + + if (weston_log_scope_is_enabled(log_scope)) { + int len_va; + char *xlog_timestamp = log_timestamp(timestr, sizeof(timestr)); + len_va = vasprintf(&str, fmt, ap); + if (len_va >= 0) { + len = weston_log_scope_printf(log_scope, "%s %s", + xlog_timestamp, str); + free(str); + } else { + len = weston_log_scope_printf(log_scope, "%s %s", + xlog_timestamp, oom); + } + } + + return len; +} + + +static int +vlog_continue(const char *fmt, va_list ap) +{ + return weston_log_scope_vprintf(log_scope, fmt, ap); +} + +static int +on_term_signal(int signo, void *data) +{ + struct wl_display *display = data; + + weston_log("caught signal %d\n", signo); + wl_display_terminate(display); + + return 1; +} + +static void +handle_exit(struct weston_compositor *compositor) +{ + wl_display_terminate(compositor->wl_display); +} + +static void +usage(int error_code) +{ + FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr; + fprintf(out, + "Usage: agl-compositor [OPTIONS]\n" + "\n" + "This is " PACKAGE_STRING ", the reference compositor for\n" + "Automotive Grade Linux. " PACKAGE_STRING " supports multiple " + "backends,\nand depending on which backend is in use different " + "options will be accepted.\n" + "\n" + "Core options:\n" + "\n" + " --version\t\tPrint agl-compositor version\n" + " -B, --backend=MODULE\tBackend module, one of\n" + "\t\t\t\tdrm-backend.so\n" + "\t\t\t\twayland-backend.so\n" + "\t\t\t\tx11-backend.so\n" + "\t\t\t\theadless-backend.so\n" + " -S, --socket=NAME\tName of socket to listen on\n" + " --log=FILE\t\tLog to the given file\n" + " -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n" + " --no-config\t\tDo not read agl-compositor.ini\n" + " --debug\t\tEnable debug extension(s)\n" + " -h, --help\t\tThis help message\n" + "\n"); + exit(error_code); +} + +static char * +copy_command_line(int argc, char * const argv[]) +{ + FILE *fp; + char *str = NULL; + size_t size = 0; + int i; + + fp = open_memstream(&str, &size); + if (!fp) + return NULL; + + fprintf(fp, "%s", argv[0]); + for (i = 1; i < argc; i++) + fprintf(fp, " %s", argv[i]); + fclose(fp); + + return str; +} + +WL_EXPORT +int wet_main(int argc, char *argv[]) +{ + struct ivi_compositor ivi = { 0 }; + char *cmdline; + struct wl_display *display = NULL; + struct wl_event_loop *loop; + struct wl_event_source *signals[3] = { 0 }; + struct weston_config_section *section; + /* Command line options */ + char *backend = NULL; + char *socket_name = NULL; + char *log = NULL; + char *modules = NULL; + char *option_modules = NULL; + int help = 0; + int version = 0; + int no_config = 0; + int debug = 0; + char *config_file = NULL; + struct weston_log_context *log_ctx = NULL; + struct weston_log_subscriber *logger; + int ret = EXIT_FAILURE; + bool xwayland = false; + + const struct weston_option core_options[] = { + { WESTON_OPTION_STRING, "backend", 'B', &backend }, + { WESTON_OPTION_STRING, "socket", 'S', &socket_name }, + { WESTON_OPTION_STRING, "log", 0, &log }, + { WESTON_OPTION_BOOLEAN, "help", 'h', &help }, + { WESTON_OPTION_BOOLEAN, "version", 0, &version }, + { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config }, + { WESTON_OPTION_BOOLEAN, "debug", 0, &debug }, + { WESTON_OPTION_STRING, "config", 'c', &config_file }, + { WESTON_OPTION_STRING, "modules", 0, &option_modules }, + }; + + wl_list_init(&ivi.outputs); + wl_list_init(&ivi.surfaces); + wl_list_init(&ivi.pending_surfaces); + wl_list_init(&ivi.popup_pending_apps); + wl_list_init(&ivi.fullscreen_pending_apps); + wl_list_init(&ivi.split_pending_apps); + wl_list_init(&ivi.remote_pending_apps); + wl_list_init(&ivi.desktop_clients); + + /* Prevent any clients we spawn getting our stdin */ + os_fd_set_cloexec(STDIN_FILENO); + + cmdline = copy_command_line(argc, argv); + parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv); + + if (help) + usage(EXIT_SUCCESS); + + if (version) { + printf(PACKAGE_STRING "\n"); + return EXIT_SUCCESS; + } + + log_ctx = weston_log_ctx_compositor_create(); + if (!log_ctx) { + fprintf(stderr, "Failed to initialize weston debug framework.\n"); + return ret; + } + + log_scope = weston_compositor_add_log_scope(log_ctx, "log", + "agl-compositor log\n", + NULL, NULL, NULL); + + log_file_open(log); + weston_log_set_handler(vlog, vlog_continue); + + logger = weston_log_subscriber_create_log(logfile); + weston_log_subscribe(log_ctx, logger, "log"); + + weston_log("Command line: %s\n", cmdline); + free(cmdline); + + if (load_config(&ivi.config, no_config, config_file) < 0) + goto error_signals; + section = weston_config_get_section(ivi.config, "core", NULL, NULL); + if (!backend) { + weston_config_section_get_string(section, "backend", &backend, + NULL); + if (!backend) + backend = choose_default_backend(); + } + /* from [core] */ + weston_config_section_get_bool(section, "hide-cursor", &ivi.hide_cursor, false); + weston_config_section_get_bool(section, "activate-by-default", &ivi.activate_by_default, true); + + display = wl_display_create(); + loop = wl_display_get_event_loop(display); + + wl_display_set_global_filter(display, + global_filter, &ivi); + + /* Register signal handlers so we shut down cleanly */ + + signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal, + display); + signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal, + display); + signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal, + display); + + for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i) + if (!signals[i]) + goto error_signals; + + ivi.compositor = weston_compositor_create(display, log_ctx, &ivi); + if (!ivi.compositor) { + weston_log("fatal: failed to create compositor.\n"); + goto error_signals; + } + + if (compositor_init_config(ivi.compositor, ivi.config) < 0) + goto error_compositor; + + if (load_backend(&ivi, backend, &argc, argv) < 0) { + weston_log("fatal: failed to create compositor backend.\n"); + goto error_compositor; + } + + ivi.heads_changed.notify = heads_changed; + weston_compositor_add_heads_changed_listener(ivi.compositor, + &ivi.heads_changed); + + if (ivi_desktop_init(&ivi) < 0) + goto error_compositor; + + ivi_seat_init(&ivi); + + /* load additional modules */ + weston_config_section_get_string(section, "modules", &modules, ""); + if (load_modules(&ivi, modules, &argc, argv, &xwayland) < 0) + goto error_compositor; + + if (load_modules(&ivi, option_modules, &argc, argv, &xwayland) < 0) + goto error_compositor; + + if (ivi_policy_init(&ivi) < 0) + goto error_compositor; + + if (ivi_shell_init(&ivi) < 0) + goto error_compositor; + + add_bindings(ivi.compositor); + + weston_compositor_flush_heads_changed(ivi.compositor); + + if (ivi.remoting_api) + ivi_enable_remote_outputs(&ivi); + + if (ivi.waltham_transmitter_api) + ivi_enable_waltham_outputs(&ivi); + + if (create_listening_socket(display, socket_name) < 0) + goto error_compositor; + + ivi_shell_init_black_fs(&ivi); + + ivi.compositor->exit = handle_exit; + + weston_compositor_wake(ivi.compositor); + + ivi_shell_create_global(&ivi); + ivi_launch_shell_client(&ivi); + if (debug) + ivi_screenshooter_create(&ivi); + ivi_agl_systemd_notify(&ivi); + + wl_display_run(display); + + ret = ivi.compositor->exit_code; + + wl_display_destroy_clients(display); + +error_compositor: + weston_compositor_tear_down(ivi.compositor); + + weston_compositor_log_scope_destroy(log_scope); + log_scope = NULL; + + weston_log_ctx_compositor_destroy(ivi.compositor); + weston_compositor_destroy(ivi.compositor); + + weston_log_subscriber_destroy_log(logger); + + ivi_policy_destroy(ivi.policy); + +error_signals: + for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i) + if (signals[i]) + wl_event_source_remove(signals[i]); + + wl_display_destroy(display); + + log_file_close(); + if (ivi.config) + weston_config_destroy(ivi.config); + + return ret; +} |