diff options
| -rw-r--r-- | COPYING | 24 | ||||
| -rw-r--r-- | meson.build | 108 | ||||
| -rw-r--r-- | protocol/agl-shell.xml | 100 | ||||
| -rw-r--r-- | shared/option-parser.c | 202 | ||||
| -rw-r--r-- | shared/os-compatibility.c | 405 | ||||
| -rw-r--r-- | shared/os-compatibility.h | 72 | ||||
| -rw-r--r-- | shared/string-helpers.h | 71 | ||||
| -rw-r--r-- | src/desktop.c | 319 | ||||
| -rw-r--r-- | src/ivi-compositor.h | 220 | ||||
| -rw-r--r-- | src/main.c | 1255 | ||||
| -rw-r--r-- | src/shell.c | 533 |
11 files changed, 3309 insertions, 0 deletions
@@ -0,0 +1,24 @@ +Copyright © 2012, 2019 Collabora, Ltd. +Copyright © 2012 Kristian Høgsberg +Copyright © 2016 Samsung Electronics Co., 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. diff --git a/meson.build b/meson.build new file mode 100644 index 0000000..a7e1bfc --- /dev/null +++ b/meson.build @@ -0,0 +1,108 @@ +project('agl-compositor', + 'c', + version: '0.0.13', + default_options: [ + 'warning_level=3', + 'c_std=gnu99', + ], + meson_version: '>= 0.47', + license: 'MIT/Expat', +) + +cc = meson.get_compiler('c') +add_project_arguments( + cc.get_supported_arguments([ + '-Wno-unused-parameter', + '-Wno-pedantic', + ]), + language: 'c' +) + +add_project_arguments([ + '-DPACKAGE_STRING="agl-compositor @0@"'.format(meson.project_version()), + '-D_GNU_SOURCE', + '-D_ALL_SOURCE', + ], + language: 'c' +) + +optional_libc_funcs = [ 'memfd_create', 'strchrnul' ] +foreach func: optional_libc_funcs + if cc.has_function(func) + add_project_arguments('-DHAVE_@0@=1'.format(func.to_upper()), language: 'c') + endif +endforeach + +dep_scanner = dependency('wayland-scanner', native: true) +prog_scanner = find_program(dep_scanner.get_pkgconfig_variable('wayland_scanner')) +dep_wp = dependency('wayland-protocols', version: '>= 1.12') +dir_wp_base = dep_wp.get_pkgconfig_variable('pkgdatadir') + +agl_shell_xml = files('protocol/agl-shell.xml') +xdg_shell_xml = join_paths(dir_wp_base, 'stable', 'xdg-shell', 'xdg-shell.xml') + +protocols = [ + { 'name': 'agl-shell', 'source': 'internal' }, + { 'name': 'xdg-shell', 'source': 'wp-stable' }, +] + +foreach proto: protocols + proto_name = proto['name'] + if proto['source'] == 'internal' + base_file = proto_name + xml_path = join_paths('protocol', '@0@.xml'.format(base_file)) + elif proto['source'] == 'wp-stable' + base_file = proto_name + xml_path = join_paths(dir_wp_base, 'stable', proto_name, '@0@.xml'.format(base_file)) + else + base_file = '@0@-unstable-@1@'.format(proto_name, proto['version']) + xml_path = join_paths(dir_wp_base, 'unstable', proto_name, '@0@.xml'.format(base_file)) + endif + + foreach output_type: [ 'client-header', 'server-header', 'private-code' ] + if output_type == 'client-header' + output_file = '@0@-client-protocol.h'.format(base_file) + elif output_type == 'server-header' + output_file = '@0@-server-protocol.h'.format(base_file) + else + output_file = '@0@-protocol.c'.format(base_file) + if dep_scanner.version().version_compare('< 1.14.91') + output_type = 'code' + endif + endif + + var_name = output_file.underscorify() + target = custom_target( + '@0@ @1@'.format(base_file, output_type), + command: [ prog_scanner, output_type, '@INPUT@', '@OUTPUT@' ], + input: xml_path, + output: output_file, + ) + + set_variable(var_name, target) + endforeach +endforeach + +deps_libweston = [ + dependency('wayland-server'), + dependency('libweston-6'), + dependency('libweston-desktop-6'), +] + +srcs_agl_compositor = [ + 'src/main.c', + 'src/desktop.c', + 'src/shell.c', + 'shared/option-parser.c', + 'shared/os-compatibility.c', + agl_shell_server_protocol_h, + agl_shell_protocol_c, + xdg_shell_protocol_c, +] + +exe_agl_compositor = executable( + 'agl-compositor', + srcs_agl_compositor, + dependencies: deps_libweston, + install: true +) diff --git a/protocol/agl-shell.xml b/protocol/agl-shell.xml new file mode 100644 index 0000000..59548e7 --- /dev/null +++ b/protocol/agl-shell.xml @@ -0,0 +1,100 @@ +<?xml version="1.0" encoding="UTF-8"?> +<protocol name="agl_shell"> + <copyright> + Copyright © 2019 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. + </copyright> + <interface name="agl_shell" version="1"> + <description summary="user interface for weston-ivi"> + </description> + + <enum name="error"> + <entry name="invalid_argument" value="0"/> + <entry name="background_exists" value="1"/> + <entry name="panel_exists" value="2"/> + </enum> + + <enum name="edge"> + <entry name="top" value="0"/> + <entry name="bottom" value="1"/> + <entry name="left" value="2"/> + <entry name="right" value="3"/> + </enum> + + <request name="ready"> + <description summary="client is ready to be shown"> + Tell the server that this client is ready to be shown. The server + will delay presentation during start-up until all shell clients are + ready to be shown, and will display a black screen instead. + This gives the client an oppurtunity to set up and configure several + surfaces into a coherent interface. + + The client that binds to this interface must send this request, otherwise + they may stall the compositor unnecessarily. + + If this request is called after the compositor has already finished + start-up, no operation is performed. + </description> + </request> + + <request name="set_background"> + <description summary="set surface as output's background"> + Set the surface to act as the background of an output. After this + request, the server will immediately send a configure event with + the dimensions the client should use to cover the entire output. + + The surface must have a "desktop" surface role, as supported by + libweston-desktop. + + Only a single surface may be the background for any output. If a + background surface already exists, a protocol error is raised. + </description> + <arg name="surface" type="object" interface="wl_surface"/> + <arg name="output" type="object" interface="wl_output"/> + </request> + + <request name="set_panel"> + <description summary="set surface as panel"> + Set the surface to act as a panel of an output. The 'edge' argument + says what edge of the output the surface will be anchored to. + After this request, the server will send a configure event with the + correponding width/height that the client should use, and 0 for the + other dimension. E.g. if the edge is 'top', the width will be the + output's width, and the height will be 0. + + The surface must have a "desktop" surface role, as supported by + libweston-desktop. + + The compositor will take the panel's window geometry into account when + positioning other windows, so the panels are not covered. + + XXX: What happens if e.g. both top and left are used at the same time? + Who gets to have the corner? + + Only a single surface may be the panel for an output's edge. If a + surface already exists on an edge, a protocol error is raised. + </description> + <arg name="surface" type="object" interface="wl_surface"/> + <arg name="output" type="object" interface="wl_output"/> + <arg name="edge" type="uint" enum="edge"/> + </request> + </interface> +</protocol> diff --git a/shared/option-parser.c b/shared/option-parser.c new file mode 100644 index 0000000..81222f3 --- /dev/null +++ b/shared/option-parser.c @@ -0,0 +1,202 @@ +/* + * Copyright © 2012 Kristian Høgsberg + * + * 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 <stdbool.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <errno.h> + +#include <libweston-6/config-parser.h> +#include "shared/string-helpers.h" + +static bool +handle_option(const struct weston_option *option, char *value) +{ + char* p; + + switch (option->type) { + case WESTON_OPTION_INTEGER: + if (!safe_strtoint(value, option->data)) + return false; + return true; + case WESTON_OPTION_UNSIGNED_INTEGER: + errno = 0; + * (uint32_t *) option->data = strtoul(value, &p, 10); + if (errno != 0 || p == value || *p != '\0') + return false; + return true; + case WESTON_OPTION_STRING: + * (char **) option->data = strdup(value); + return true; + default: + assert(0); + return false; + } +} + +static bool +long_option(const struct weston_option *options, int count, char *arg) +{ + int k, len; + + for (k = 0; k < count; k++) { + if (!options[k].name) + continue; + + len = strlen(options[k].name); + if (strncmp(options[k].name, arg + 2, len) != 0) + continue; + + if (options[k].type == WESTON_OPTION_BOOLEAN) { + if (!arg[len + 2]) { + * (int32_t *) options[k].data = 1; + + return true; + } + } else if (arg[len+2] == '=') { + return handle_option(options + k, arg + len + 3); + } + } + + return false; +} + +static bool +long_option_with_arg(const struct weston_option *options, int count, char *arg, + char *param) +{ + int k, len; + + for (k = 0; k < count; k++) { + if (!options[k].name) + continue; + + len = strlen(options[k].name); + if (strncmp(options[k].name, arg + 2, len) != 0) + continue; + + /* Since long_option() should handle all booleans, we should + * never reach this + */ + assert(options[k].type != WESTON_OPTION_BOOLEAN); + + return handle_option(options + k, param); + } + + return false; +} + +static bool +short_option(const struct weston_option *options, int count, char *arg) +{ + int k; + + if (!arg[1]) + return false; + + for (k = 0; k < count; k++) { + if (options[k].short_name != arg[1]) + continue; + + if (options[k].type == WESTON_OPTION_BOOLEAN) { + if (!arg[2]) { + * (int32_t *) options[k].data = 1; + + return true; + } + } else if (arg[2]) { + return handle_option(options + k, arg + 2); + } else { + return false; + } + } + + return false; +} + +static bool +short_option_with_arg(const struct weston_option *options, int count, char *arg, char *param) +{ + int k; + + if (!arg[1]) + return false; + + for (k = 0; k < count; k++) { + if (options[k].short_name != arg[1]) + continue; + + if (options[k].type == WESTON_OPTION_BOOLEAN) + continue; + + return handle_option(options + k, param); + } + + return false; +} + +int +parse_options(const struct weston_option *options, + int count, int *argc, char *argv[]) +{ + int i, j; + + for (i = 1, j = 1; i < *argc; i++) { + if (argv[i][0] == '-') { + if (argv[i][1] == '-') { + /* Long option, e.g. --foo or --foo=bar */ + if (long_option(options, count, argv[i])) + continue; + + /* ...also handle --foo bar */ + if (i + 1 < *argc && + long_option_with_arg(options, count, + argv[i], argv[i+1])) { + i++; + continue; + } + } else { + /* Short option, e.g -f or -f42 */ + if (short_option(options, count, argv[i])) + continue; + + /* ...also handle -f 42 */ + if (i+1 < *argc && + short_option_with_arg(options, count, argv[i], argv[i+1])) { + i++; + continue; + } + } + } + argv[j++] = argv[i]; + } + argv[j] = NULL; + *argc = j; + + return j; +} diff --git a/shared/os-compatibility.c b/shared/os-compatibility.c new file mode 100644 index 0000000..3013f1f --- /dev/null +++ b/shared/os-compatibility.c @@ -0,0 +1,405 @@ +/* + * Copyright © 2012 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 <sys/types.h> +#include <sys/socket.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <sys/epoll.h> +#include <string.h> +#include <stdlib.h> +#include <libweston-6/zalloc.h> + +#ifdef HAVE_MEMFD_CREATE +#include <sys/mman.h> +#endif + +#include "os-compatibility.h" + +#define READONLY_SEALS (F_SEAL_SHRINK | F_SEAL_GROW | F_SEAL_WRITE) + +int +os_fd_set_cloexec(int fd) +{ + long flags; + + if (fd == -1) + return -1; + + flags = fcntl(fd, F_GETFD); + if (flags == -1) + return -1; + + if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1) + return -1; + + return 0; +} + +static int +set_cloexec_or_close(int fd) +{ + if (os_fd_set_cloexec(fd) != 0) { + close(fd); + return -1; + } + return fd; +} + +int +os_socketpair_cloexec(int domain, int type, int protocol, int *sv) +{ + int ret; + +#ifdef SOCK_CLOEXEC + ret = socketpair(domain, type | SOCK_CLOEXEC, protocol, sv); + if (ret == 0 || errno != EINVAL) + return ret; +#endif + + ret = socketpair(domain, type, protocol, sv); + if (ret < 0) + return ret; + + sv[0] = set_cloexec_or_close(sv[0]); + sv[1] = set_cloexec_or_close(sv[1]); + + if (sv[0] != -1 && sv[1] != -1) + return 0; + + close(sv[0]); + close(sv[1]); + return -1; +} + +int +os_epoll_create_cloexec(void) +{ + int fd; + +#ifdef EPOLL_CLOEXEC + fd = epoll_create1(EPOLL_CLOEXEC); + if (fd >= 0) + return fd; + if (errno != EINVAL) + return -1; +#endif + + fd = epoll_create(1); + return set_cloexec_or_close(fd); +} + +static int +create_tmpfile_cloexec(char *tmpname) +{ + int fd; + +#ifdef HAVE_MKOSTEMP + fd = mkostemp(tmpname, O_CLOEXEC); + if (fd >= 0) + unlink(tmpname); +#else + fd = mkstemp(tmpname); + if (fd >= 0) { + fd = set_cloexec_or_close(fd); + unlink(tmpname); + } +#endif + + return fd; +} + +/* + * Create a new, unique, anonymous file of the given size, and + * return the file descriptor for it. The file descriptor is set + * CLOEXEC. The file is immediately suitable for mmap()'ing + * the given size at offset zero. + * + * The file should not have a permanent backing store like a disk, + * but may have if XDG_RUNTIME_DIR is not properly implemented in OS. + * + * The file name is deleted from the file system. + * + * The file is suitable for buffer sharing between processes by + * transmitting the file descriptor over Unix sockets using the + * SCM_RIGHTS methods. + * + * If the C library implements posix_fallocate(), it is used to + * guarantee that disk space is available for the file at the + * given size. If disk space is insufficient, errno is set to ENOSPC. + * If posix_fallocate() is not supported, program may receive + * SIGBUS on accessing mmap()'ed file contents instead. + * + * If the C library implements memfd_create(), it is used to create the + * file purely in memory, without any backing file name on the file + * system, and then sealing off the possibility of shrinking it. This + * can then be checked before accessing mmap()'ed file contents, to + * make sure SIGBUS can't happen. It also avoids requiring + * XDG_RUNTIME_DIR. + */ +int +os_create_anonymous_file(off_t size) +{ + static const char template[] = "/weston-shared-XXXXXX"; + const char *path; + char *name; + int fd; + int ret; + +#ifdef HAVE_MEMFD_CREATE + fd = memfd_create("weston-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING); + if (fd >= 0) { + /* We can add this seal before calling posix_fallocate(), as + * the file is currently zero-sized anyway. + * + * There is also no need to check for the return value, we + * couldn't do anything with it anyway. + */ + fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK); + } else +#endif + { + path = getenv("XDG_RUNTIME_DIR"); + if (!path) { + errno = ENOENT; + return -1; + } + + name = malloc(strlen(path) + sizeof(template)); + if (!name) + return -1; + + strcpy(name, path); + strcat(name, template); + + fd = create_tmpfile_cloexec(name); + + free(name); + + if (fd < 0) + return -1; + } + +#ifdef HAVE_POSIX_FALLOCATE + do { + ret = posix_fallocate(fd, 0, size); + } while (ret == EINTR); + if (ret != 0) { + close(fd); + errno = ret; + return -1; + } +#else + do { + ret = ftruncate(fd, size); + } while (ret < 0 && errno == EINTR); + if (ret < 0) { + close(fd); + return -1; + } +#endif + + return fd; +} + +#ifndef HAVE_STRCHRNUL +char * +strchrnul(const char *s, int c) +{ + while (*s && *s != c) + s++; + return (char *)s; +} +#endif + +struct ro_anonymous_file { + int fd; + size_t size; +}; + +/** Create a new anonymous read-only file of the given size and the given data + * + * \param size The size of \p data. + * \param data The data of the file with the size \p size. + * \return A new \c ro_anonymous_file, or NULL on failure. + * + * The intended use-case is for sending mid-sized data from the compositor + * to clients. + * If the function fails errno is set. + */ +struct ro_anonymous_file * +os_ro_anonymous_file_create(size_t size, + const char *data) +{ + struct ro_anonymous_file *file; + void *map; + + file = zalloc(sizeof *file); + if (!file) { + errno = ENOMEM; + return NULL; + } + + file->size = size; + file->fd = os_create_anonymous_file(size); + if (file->fd == -1) + goto err_free; + + map = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, file->fd, 0); + if (map == MAP_FAILED) + goto err_close; + + memcpy(map, data, size); + + munmap(map, size); + +#ifdef HAVE_MEMFD_CREATE + /* try to put seals on the file to make it read-only so that we can + * return the fd later directly when support_shared is not set. + * os_ro_anonymous_file_get_fd can handle the fd even if it is not + * sealed read-only and will instead create a new anonymous file on + * each invocation. + */ + fcntl(file->fd, F_ADD_SEALS, READONLY_SEALS); +#endif + + return file; + +err_close: + close(file->fd); +err_free: + free(file); + return NULL; +} + +/** Destroy an anonymous read-only file + * + * \param file The file to destroy. + */ +void +os_ro_anonymous_file_destroy(struct ro_anonymous_file *file) +{ + close(file->fd); + free(file); +} + +/** Get the size of an anonymous read-only file + * + * \param file The file to get the size of. + * \return The size of the file. + */ +size_t +os_ro_anonymous_file_size(struct ro_anonymous_file *file) +{ + return file->size; +} + +/** Returns a file descriptor for the given file, ready to be send to a client. + * + * \param file The file for which to get a file descriptor. + * \param mapmode Describes the ways in which the returned file descriptor can + * be used with mmap. + * \return A file descriptor for the given file that can be send to a client + * or -1 on failure. + * + * The returned file descriptor must not be shared between multiple clients. + * When \p mapmode is RO_ANONYMOUS_FILE_MAPMODE_PRIVATE the file descriptor is + * only guaranteed to be mmapable with \c MAP_PRIVATE, when \p mapmode is + * RO_ANONYMOUS_FILE_MAPMODE_SHARED the file descriptor can be mmaped with + * either MAP_PRIVATE or MAP_SHARED. + * When you're done with the fd you must call \c os_ro_anonymous_file_put_fd + * instead of calling \c close. + * If the function fails errno is set. + */ +int +os_ro_anonymous_file_get_fd(struct ro_anonymous_file *file, + enum ro_anonymous_file_mapmode mapmode) +{ + void *src, *dst; + int seals, fd; + + seals = fcntl(file->fd, F_GET_SEALS); + + /* file was sealed for read-only and we don't have to support MAP_SHARED + * so we can simply pass the memfd fd + */ + if (seals != -1 && mapmode == RO_ANONYMOUS_FILE_MAPMODE_PRIVATE && + (seals & READONLY_SEALS) == READONLY_SEALS) + return file->fd; + + /* for all other cases we create a new anonymous file that can be mapped + * with MAP_SHARED and copy the contents to it and return that instead + */ + fd = os_create_anonymous_file(file->size); + if (fd == -1) + return fd; + + src = mmap(NULL, file->size, PROT_READ, MAP_PRIVATE, file->fd, 0); + if (src == MAP_FAILED) { + close(fd); + return -1; + } + + dst = mmap(NULL, file->size, PROT_WRITE, MAP_SHARED, fd, 0); + if (dst == MAP_FAILED) { + close(fd); + munmap(src, file->size); + return -1; + } + + memcpy(dst, src, file->size); + munmap(src, file->size); + munmap(dst, file->size); + + return fd; +} + +/** Release a file descriptor returned by \c os_ro_anonymous_file_get_fd + * + * \param fd A file descriptor returned by \c os_ro_anonymous_file_get_fd. + * \return 0 on success, or -1 on failure. + * + * This function must be called for every file descriptor created with + * \c os_ro_anonymous_file_get_fd to not leake any resources. + * If the function fails errno is set. + */ +int +os_ro_anonymous_file_put_fd(int fd) +{ + int seals = fcntl(fd, F_GET_SEALS); + if (seals == -1 && errno != EINVAL) + return -1; + + /* If the fd cannot be sealed seals is -1 at this point + * or the file can be sealed but has not been sealed for writing. + * In both cases we created a new anonymous file that we have to + * close. + */ + if (seals == -1 || !(seals & F_SEAL_WRITE)) + close(fd); + + return 0; +} diff --git a/shared/os-compatibility.h b/shared/os-compatibility.h new file mode 100644 index 0000000..1ad45d7 --- /dev/null +++ b/shared/os-compatibility.h @@ -0,0 +1,72 @@ +/* + * Copyright © 2012 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. + */ + +#ifndef OS_COMPATIBILITY_H +#define OS_COMPATIBILITY_H + +#include <sys/types.h> + +int +os_fd_set_cloexec(int fd); + +int +os_socketpair_cloexec(int domain, int type, int protocol, int *sv); + +int +os_epoll_create_cloexec(void); + +int +os_create_anonymous_file(off_t size); + +#ifndef HAVE_STRCHRNUL +char * +strchrnul(const char *s, int c); +#endif + +struct ro_anonymous_file; + +enum ro_anonymous_file_mapmode { + RO_ANONYMOUS_FILE_MAPMODE_PRIVATE, + RO_ANONYMOUS_FILE_MAPMODE_SHARED, +}; + +struct ro_anonymous_file * +os_ro_anonymous_file_create(size_t size, + const char *data); + +void +os_ro_anonymous_file_destroy(struct ro_anonymous_file *file); + +size_t +os_ro_anonymous_file_size(struct ro_anonymous_file *file); + +int +os_ro_anonymous_file_get_fd(struct ro_anonymous_file *file, + enum ro_anonymous_file_mapmode mapmode); + +int +os_ro_anonymous_file_put_fd(int fd); + +#endif /* OS_COMPATIBILITY_H */ diff --git a/shared/string-helpers.h b/shared/string-helpers.h new file mode 100644 index 0000000..c8ce449 --- /dev/null +++ b/shared/string-helpers.h @@ -0,0 +1,71 @@ +/* + * Copyright © 2016 Samsung Electronics Co., 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. + */ + +#ifndef WESTON_STRING_HELPERS_H +#define WESTON_STRING_HELPERS_H + +#include <stdbool.h> +#include <stdlib.h> +#include <stdint.h> +#include <errno.h> +#include <assert.h> + +/* Convert string to integer + * + * Parses a base-10 number from the given string. Checks that the + * string is not blank, contains only numerical characters, and is + * within the range of INT32_MIN to INT32_MAX. If the validation is + * successful the result is stored in *value; otherwise *value is + * unchanged and errno is set appropriately. + * + * \return true if the number parsed successfully, false on error + */ +static inline bool +safe_strtoint(const char *str, int32_t *value) +{ + long ret; + char *end; + + assert(str != NULL); + + errno = 0; + ret = strtol(str, &end, 10); + if (errno != 0) { + return false; + } else if (end == str || *end != '\0') { + errno = EINVAL; + return false; + } + + if ((long)((int32_t)ret) != ret) { + errno = ERANGE; + return false; + } + *value = (int32_t)ret; + + return true; +} + +#endif /* WESTON_STRING_HELPERS_H */ diff --git a/src/desktop.c b/src/desktop.c new file mode 100644 index 0000000..fbeefec --- /dev/null +++ b/src/desktop.c @@ -0,0 +1,319 @@ +/* + * Copyright © 2019 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 <libweston-6/compositor.h> +#include <libweston-6/libweston-desktop.h> + +#if 0 +static struct weston_output * +get_default_output(struct weston_compositor *compositor) +{ + if (wl_list_empty(&compositor->output_list)) + return NULL; + + return wl_container_of(compositor->output_list.next, + struct weston_output, link); +} +#endif + +static void +desktop_ping_timeout(struct weston_desktop_client *dclient, void *userdata) +{ + /* not supported */ +} + +static void +desktop_pong(struct weston_desktop_client *dclient, void *userdata) +{ + /* not supported */ +} + +static void +desktop_surface_added(struct weston_desktop_surface *dsurface, void *userdata) +{ + struct ivi_compositor *ivi = userdata; + struct weston_desktop_client *dclient; + struct wl_client *client; + struct ivi_surface *surface; + + dclient = weston_desktop_surface_get_client(dsurface); + client = weston_desktop_client_get_client(dclient); + + surface = zalloc(sizeof *surface); + if (!surface) { + wl_client_post_no_memory(client); + return; + } + + surface->ivi = ivi; + surface->dsurface = dsurface; + surface->role = IVI_SURFACE_ROLE_NONE; + surface->old_geom.width = -1; + surface->old_geom.height = -1; + + weston_desktop_surface_set_user_data(dsurface, surface); + + if (ivi->shell_client.ready) { + ivi_set_desktop_surface(surface); + + ivi_reflow_outputs(ivi); + } else { + /* + * We delay creating "normal" desktop surfaces until later, to + * give the shell-client an oppurtunity to set the surface as a + * background/panel. + */ + wl_list_insert(&ivi->pending_surfaces, &surface->link); + } +} + +static void +desktop_surface_removed(struct weston_desktop_surface *dsurface, void *userdata) +{ + struct ivi_surface *surface = + weston_desktop_surface_get_user_data(dsurface); + struct weston_surface *wsurface = + weston_desktop_surface_get_surface(dsurface); + struct ivi_compositor *ivi = surface->ivi; + + /* TODO */ + if (surface->role != IVI_SURFACE_ROLE_DESKTOP) + return; + + if (weston_surface_is_mapped(wsurface)) { + weston_desktop_surface_unlink_view(surface->desktop.view); + weston_view_destroy(surface->desktop.view); + wl_list_remove(&surface->link); + } + free(surface); + + ivi_reflow_outputs(ivi); +} + +static void +surface_committed(struct ivi_surface *surface) +{ + struct ivi_compositor *ivi = surface->ivi; + struct weston_desktop_surface *dsurface = surface->dsurface; + struct weston_geometry geom, old_geom; + + old_geom = surface->old_geom; + geom = weston_desktop_surface_get_geometry(dsurface); + + surface->old_geom = geom; + + if (geom.width != old_geom.width || geom.height != old_geom.height) { + ivi_reflow_outputs(ivi); + } + + //wl_list_insert(&ivi->surfaces, &surface->link); +} + +static void +background_committed(struct ivi_surface *surface) +{ + struct ivi_compositor *ivi = surface->ivi; + struct ivi_output *output = surface->bg.output; + struct weston_output *woutput = output->output; + struct weston_desktop_surface *dsurface = surface->dsurface; + struct weston_surface *wsurface = + weston_desktop_surface_get_surface(dsurface); + + if (wsurface->is_mapped) + return; + + surface->bg.view = weston_desktop_surface_create_view(dsurface); + + weston_view_set_output(surface->bg.view, woutput); + weston_view_set_position(surface->bg.view, + woutput->x, + woutput->y); + weston_layer_entry_insert(&ivi->background.view_list, + &surface->bg.view->layer_link); + + weston_view_update_transform(surface->bg.view); + weston_view_schedule_repaint(surface->bg.view); + + wsurface->is_mapped = true; +} + +static void +panel_committed(struct ivi_surface *surface) +{ + struct ivi_compositor *ivi = surface->ivi; + struct ivi_output *output = surface->bg.output; + struct weston_output *woutput = output->output; + struct weston_desktop_surface *dsurface = surface->dsurface; + struct weston_surface *wsurface = + weston_desktop_surface_get_surface(dsurface); + struct weston_geometry geom; + int32_t x = woutput->x; + int32_t y = woutput->y; + + if (wsurface->is_mapped) + return; + + surface->panel.view = weston_desktop_surface_create_view(dsurface); + + geom = weston_desktop_surface_get_geometry(dsurface); + switch (surface->panel.edge) { + case AGL_SHELL_EDGE_TOP: + /* Do nothing */ + break; + case AGL_SHELL_EDGE_BOTTOM: + y += woutput->height - geom.height; + break; + case AGL_SHELL_EDGE_LEFT: + /* Do nothing */ + break; + case AGL_SHELL_EDGE_RIGHT: + x += woutput->width - geom.width; + break; + } + + weston_view_set_output(surface->panel.view, woutput); + weston_view_set_position(surface->panel.view, x, y); + weston_layer_entry_insert(&ivi->normal.view_list, + &surface->panel.view->layer_link); + + weston_view_update_transform(surface->panel.view); + weston_view_schedule_repaint(surface->panel.view); + + wsurface->is_mapped = true; +} + +static void +desktop_committed(struct weston_desktop_surface *dsurface, + int32_t sx, int32_t sy, void *userdata) +{ + struct ivi_surface *surface = + weston_desktop_surface_get_user_data(dsurface); + + weston_compositor_schedule_repaint(surface->ivi->compositor); + + switch (surface->role) { + case IVI_SURFACE_ROLE_NONE: + break; + case IVI_SURFACE_ROLE_DESKTOP: + surface_committed(surface); + break; + case IVI_SURFACE_ROLE_BACKGROUND: + background_committed(surface); + break; + case IVI_SURFACE_ROLE_PANEL: + panel_committed(surface); + break; + } +} + +static void +desktop_show_window_menu(struct weston_desktop_surface *dsurface, + struct weston_seat *seat, int32_t x, int32_t y, + void *userdata) +{ + /* not supported */ +} + +static void +desktop_set_parent(struct weston_desktop_surface *dsurface, + struct weston_desktop_surface *parent, void *userdata) +{ + /* not supported */ +} + +static void +desktop_move(struct weston_desktop_surface *dsurface, + struct weston_seat *seat, uint32_t serial, void *userdata) +{ + /* not supported */ +} + +static void +desktop_resize(struct weston_desktop_surface *dsurface, + struct weston_seat *seat, uint32_t serial, + enum weston_desktop_surface_edge edges, void *user_data) +{ + /* not supported */ +} + +static void +desktop_fullscreen_requested(struct weston_desktop_surface *dsurface, + bool fullscreen, struct weston_output *output, + void *userdata) +{ + /* not supported */ +} + +static void +desktop_maximized_requested(struct weston_desktop_surface *dsurface, + bool maximized, void *userdata) +{ + /* not supported */ +} + +static void +desktop_minimized_requested(struct weston_desktop_surface *dsurface, + void *userdata) +{ + /* not supported */ +} + +static void +desktop_set_xwayland_position(struct weston_desktop_surface *dsurface, + int32_t x, int32_t y, void *userdata) +{ + /* not supported */ +} + +static const struct weston_desktop_api desktop_api = { + .struct_size = sizeof desktop_api, + .ping_timeout = desktop_ping_timeout, + .pong = desktop_pong, + .surface_added = desktop_surface_added, + .surface_removed = desktop_surface_removed, + .committed = desktop_committed, + .show_window_menu = desktop_show_window_menu, + .set_parent = desktop_set_parent, + .move = desktop_move, + .resize = desktop_resize, + .fullscreen_requested = desktop_fullscreen_requested, + .maximized_requested = desktop_maximized_requested, + .minimized_requested = desktop_minimized_requested, + .set_xwayland_position = desktop_set_xwayland_position, +}; + +int +ivi_desktop_init(struct ivi_compositor *ivi) +{ + ivi->desktop = weston_desktop_create(ivi->compositor, &desktop_api, ivi); + if (!ivi->desktop) { + weston_log("Failed to create desktop globals"); + return -1; + } + + return 0; +} diff --git a/src/ivi-compositor.h b/src/ivi-compositor.h new file mode 100644 index 0000000..65e06ad --- /dev/null +++ b/src/ivi-compositor.h @@ -0,0 +1,220 @@ +/* + * Copyright © 2019 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. + */ + +#ifndef IVI_COMPOSITOR_H +#define IVI_COMPOSITOR_H + +#include <stdbool.h> + +#include <libweston-6/compositor-drm.h> +#include <libweston-6/compositor.h> +#include <libweston-6/windowed-output-api.h> +#include <libweston-6/libweston-desktop.h> + +#include "agl-shell-server-protocol.h" + +#define ARRAY_LENGTH(x) (sizeof(x) / sizeof((x)[0])) + +struct ivi_compositor { + struct weston_compositor *compositor; + struct weston_config *config; + + struct wl_listener heads_changed; + + bool init_failed; + + /* + * Options parsed from command line arugments. + * Overrides what is found in the config file. + */ + struct { + /* drm */ + bool use_current_mode; + /* wayland/x11 */ + int width; + int height; + int scale; + } cmdline; + const struct weston_windowed_output_api *window_api; + const struct weston_drm_output_api *drm_api; + + struct wl_global *agl_shell; + struct { + struct wl_client *client; + struct wl_resource *resource; + bool ready; + } shell_client; + + struct wl_list outputs; /* ivi_output.link */ + struct wl_list surfaces; /* ivi_desktop_surface.link */ + + struct weston_desktop *desktop; + + struct wl_list pending_surfaces; + + struct weston_layer background; + struct weston_layer normal; + struct weston_layer panel; + struct weston_layer fullscreen; + + struct wl_list shell_clients; /* ivi_shell_client.link */ +}; + +struct ivi_surface; + +struct ivi_output { + struct wl_list link; /* ivi_compositor.outputs */ + struct ivi_compositor *ivi; + + char *name; + struct weston_config_section *config; + struct weston_output *output; + + struct ivi_surface *background; + /* Panels */ + struct ivi_surface *top; + struct ivi_surface *bottom; + struct ivi_surface *left; + struct ivi_surface *right; + + struct wl_listener output_destroy; + + /* + * Usable area for normal clients, i.e. with panels removed. + * In output-coorrdinate space. + */ + struct weston_geometry area; + + //int32_t width; + //int32_t height; + + /* Temporary: only used during configuration */ + size_t add_len; + struct weston_head *add[8]; +}; + +enum ivi_surface_role { + IVI_SURFACE_ROLE_NONE, + IVI_SURFACE_ROLE_DESKTOP, + IVI_SURFACE_ROLE_BACKGROUND, + IVI_SURFACE_ROLE_PANEL, +}; + +struct ivi_desktop_surface { + struct weston_view *view; +}; + +struct ivi_background_surface { + struct ivi_output *output; + struct weston_view *view; +}; + +struct ivi_panel_surface { + struct ivi_output *output; + enum agl_shell_edge edge; + struct weston_view *view; +}; + +enum ivi_surface_flags { + IVI_SURFACE_PROP_MAP = (1 << 0), + /* x, y, width, height */ + IVI_SURFACE_PROP_POSITION = (1 << 1), +}; + +struct ivi_surface { + struct ivi_compositor *ivi; + struct weston_desktop_surface *dsurface; + + struct wl_list link; + + struct { + enum ivi_surface_flags flags; + int32_t x, y; + int32_t width, height; + } pending; + + struct weston_geometry old_geom; + + enum ivi_surface_role role; + union { + struct ivi_desktop_surface desktop; + struct ivi_background_surface bg; + struct ivi_panel_surface panel; + }; +}; + +struct ivi_shell_client { + struct wl_list link; + char *command; + bool require_ready; + + pid_t pid; + struct wl_client *client; + + struct wl_listener client_destroy; +}; + +struct ivi_compositor * +to_ivi_compositor(struct weston_compositor *ec); + +int +ivi_shell_init(struct ivi_compositor *ivi); + +int +ivi_shell_create_global(struct ivi_compositor *ivi); + +int +ivi_launch_shell_client(struct ivi_compositor *ivi); + +int +ivi_desktop_init(struct ivi_compositor *ivi); + +struct ivi_shell_client * +ivi_shell_client_from_wl(struct wl_client *client); + +struct ivi_output * +to_ivi_output(struct weston_output *o); + +void +ivi_set_desktop_surface(struct ivi_surface *surface); + +void +ivi_reflow_outputs(struct ivi_compositor *ivi); + +struct ivi_surface * +to_ivi_surface(struct weston_surface *surface); + +void +ivi_layout_set_mapped(struct ivi_surface *surface); + +void +ivi_layout_set_position(struct ivi_surface *surface, + int32_t x, int32_t y, + int32_t width, int32_t height); + +void +ivi_layout_commit(struct ivi_compositor *ivi); + +#endif diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..71a99ea --- /dev/null +++ b/src/main.c @@ -0,0 +1,1255 @@ +/* + * Copyright © 2012-2019 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 <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-6/compositor-drm.h> +#include <libweston-6/compositor-wayland.h> +#include <libweston-6/compositor-x11.h> +#include <libweston-6/compositor.h> +#include <libweston-6/windowed-output-api.h> +#include <libweston-6/config-parser.h> + +#include "shared/os-compatibility.h" + +#include "agl-shell-server-protocol.h" + +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); + + 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 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); + return output; +} + +static void +ivi_output_destroy(struct ivi_output *output) +{ + weston_output_destroy(output->output); + free(output->name); + wl_list_remove(&output->link); + free(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; + } + + 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) { + ivi_output_destroy(ivi_output); + 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; + } + } +} + +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; + int 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; + } + +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; + int 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"); +} + +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"); +} + +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); + } + + weston_log("fatal: unknown backend '%s'.\n", backend); + return -1; +} + +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; + int vt_switching; + int 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 || surface->role != IVI_SURFACE_ROLE_DESKTOP) + 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) +{ +#if 0 + struct ivi_compositor *ivi = data; + const struct wl_interface *iface = wl_global_get_interface(global); + + if (iface == &agl_shell_interface) + return client == ivi->shell_client.client; +#endif + + 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 struct weston_log_scope *log_scope; +//static struct weston_log_scope *protocol_scope; + +static int +log_timestamp(void) +{ + static int cached_tm_mday = -1; + struct timespec ts; + struct tm brokendown_time; + char buf[128]; + + clock_gettime(CLOCK_REALTIME, &ts); + if (!localtime_r(&ts.tv_sec, &brokendown_time)) + return fprintf(logfile, "[(NULL)localtime] "); + + if (brokendown_time.tm_mday != cached_tm_mday) { + strftime(buf, sizeof buf, "%Y-%m-%d %Z", &brokendown_time); + fprintf(logfile, "Date: %s\n", buf); + + cached_tm_mday = brokendown_time.tm_mday; + } + + strftime(buf, sizeof buf, "%H:%M:%S", &brokendown_time); + + return fprintf(logfile, "[%s.%03ld] ", buf, ts.tv_nsec / 1000000); +} + +static void +custom_handler(const char *fmt, va_list arg) +{ + log_timestamp(); + fprintf(logfile, "libwayland: "); + vfprintf(logfile, 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) +{ + int l; + + l = log_timestamp(); + l += vfprintf(logfile, fmt, ap); + + return l; +} + +static int +vlog_continue(const char *fmt, va_list ap) +{ + return vfprintf(logfile, 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. Weston-ivi supports multiple backends, and depending\n" + "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" + " -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\n" + " -h, --help\t\tThis help message\n" + "\n"); + exit(error_code); +} + +int main(int argc, char *argv[]) +{ + struct ivi_compositor ivi = { 0 }; + struct wl_display *display; + 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; + int help = 0; + int version = 0; + int no_config = 0; + char *config_file = NULL; + int debug_protocol = 0; + + 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_STRING, "config", 'c', &config_file }, + { WESTON_OPTION_BOOLEAN, "debug", 0, &debug_protocol }, + }; + + wl_list_init(&ivi.outputs); + wl_list_init(&ivi.surfaces); + wl_list_init(&ivi.shell_clients); + wl_list_init(&ivi.pending_surfaces); + + /* Prevent any clients we spawn getting our stdin */ + os_fd_set_cloexec(STDIN_FILENO); + + 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_file_open(log); + weston_log_set_handler(vlog, vlog_continue); + + 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(); + } + + 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; + +#if 0 + log_ctx = weston_log_ctx_compositor_create(); + if (!log_ctx) { + weston_log("Failed to initialize weston debug framework.\n"); + goto error_signals; + } +#endif + + ivi.compositor = weston_compositor_create(display, &ivi); + if (!ivi.compositor) { + weston_log("fatal: failed to create compositor.\n"); + goto error_signals; + } + +#if 0 + if (debug_protocol) + weston_compositor_enable_debug_protocol(ivi.compositor); +#endif + + 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; + + if (ivi_shell_init(&ivi) < 0) + goto error_compositor; + + add_bindings(ivi.compositor); + + weston_compositor_flush_heads_changed(ivi.compositor); + + if (create_listening_socket(display, socket_name) < 0) + goto error_compositor; + + ivi.compositor->exit = handle_exit; + + weston_compositor_wake(ivi.compositor); + + ivi_shell_create_global(&ivi); + ivi_launch_shell_client(&ivi); + + wl_display_run(display); + + wl_display_destroy_clients(display); + +error_compositor: + weston_compositor_destroy(ivi.compositor); + +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); +} diff --git a/src/shell.c b/src/shell.c new file mode 100644 index 0000000..cac8fa2 --- /dev/null +++ b/src/shell.c @@ -0,0 +1,533 @@ +/* + * Copyright © 2019 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 <assert.h> +#include <errno.h> +#include <fcntl.h> +#include <signal.h> +#include <string.h> +#include <sys/socket.h> +#include <sys/types.h> +#include <unistd.h> +#include <libweston-6/compositor.h> +#include <libweston-6/config-parser.h> + +#include "shared/os-compatibility.h" + +#include "agl-shell-server-protocol.h" + +void +ivi_set_desktop_surface(struct ivi_surface *surface) +{ + assert(surface->role == IVI_SURFACE_ROLE_NONE); + + surface->role = IVI_SURFACE_ROLE_DESKTOP; + wl_list_insert(&surface->ivi->surfaces, &surface->link); +} + +/* TODO: Replace this with some callback or similar, to have + * adjustable window management policy. + */ +void +ivi_reflow_outputs(struct ivi_compositor *ivi) +{ + struct ivi_surface *surface; + struct ivi_output *output; + int i = 0; + + if (wl_list_empty(&ivi->outputs)) + return; + + output = wl_container_of(ivi->outputs.next, output, link); + + wl_list_for_each(surface, &ivi->surfaces, link) { + struct weston_desktop_surface *dsurface = surface->dsurface; + + int32_t w = output->area.width / 4; + int32_t h = output->area.height / 2; + int32_t x = output->output->x + output->area.x + w * (i % 4); + int32_t y = output->output->y + output->area.y + h * (i / 4); + + if (surface->old_geom.width == -1) { + weston_desktop_surface_set_size(dsurface, w, h); + continue; + } else { + ivi_layout_set_mapped(surface); + ivi_layout_set_position(surface, x, y, w, h); + } + + if (++i == 8) { + if (output->link.next == &ivi->outputs) + break; + + output = wl_container_of(output->link.next, + output, link); + i = 0; + } + } + + ivi_layout_commit(ivi); +} + +void +ivi_layout_set_mapped(struct ivi_surface *surface) +{ + surface->pending.flags |= IVI_SURFACE_PROP_MAP; +} + +void +ivi_layout_set_position(struct ivi_surface *surface, + int32_t x, int32_t y, + int32_t width, int32_t height) +{ + surface->pending.flags |= IVI_SURFACE_PROP_POSITION; + surface->pending.x = x; + surface->pending.y = y; + surface->pending.width = width; + surface->pending.height = height; +} + +void +ivi_layout_commit(struct ivi_compositor *ivi) +{ + struct ivi_surface *surface; + + wl_list_for_each(surface, &ivi->surfaces, link) { + struct weston_desktop_surface *dsurface = surface->dsurface; + struct weston_surface *wsurface = + weston_desktop_surface_get_surface(dsurface); + struct weston_geometry geom; + struct weston_view *view; + + /* + * TODO: Hoist view into ivi_struct. It doesn't need ot be part + * of the tagged union. + */ + switch (surface->role) { + case IVI_SURFACE_ROLE_DESKTOP: + view = surface->desktop.view; + break; + case IVI_SURFACE_ROLE_BACKGROUND: + view = surface->bg.view; + break; + case IVI_SURFACE_ROLE_PANEL: + view = surface->panel.view; + break; + default: + continue; + } + + if (surface->pending.flags & IVI_SURFACE_PROP_MAP) { + view = weston_desktop_surface_create_view(dsurface); + wsurface->is_mapped = true; + + surface->desktop.view = view; + weston_layer_entry_insert(&ivi->normal.view_list, + &view->layer_link); + weston_view_update_transform(view); + weston_view_set_mask_infinite(view); + weston_view_schedule_repaint(view); + } + + geom = weston_desktop_surface_get_geometry(dsurface); + + if (surface->pending.flags & IVI_SURFACE_PROP_POSITION) { + weston_desktop_surface_set_size(dsurface, + surface->pending.width, + surface->pending.height); + weston_view_set_position(view, + surface->pending.x - geom.x, + surface->pending.y - geom.y); + } + + surface->pending.flags = 0; + } +} + +int +ivi_shell_init(struct ivi_compositor *ivi) +{ + weston_layer_init(&ivi->background, ivi->compositor); + weston_layer_init(&ivi->normal, ivi->compositor); + weston_layer_init(&ivi->panel, ivi->compositor); + weston_layer_init(&ivi->fullscreen, ivi->compositor); + + weston_layer_set_position(&ivi->background, + WESTON_LAYER_POSITION_BACKGROUND); + weston_layer_set_position(&ivi->normal, + WESTON_LAYER_POSITION_NORMAL); + weston_layer_set_position(&ivi->panel, + WESTON_LAYER_POSITION_UI); + weston_layer_set_position(&ivi->fullscreen, + WESTON_LAYER_POSITION_FULLSCREEN); + + return 0; +} + +static void +client_exec(const char *command, int fd) +{ + sigset_t sig; + char s[32]; + + /* Don't give the child our signal mask */ + sigfillset(&sig); + sigprocmask(SIG_UNBLOCK, &sig, NULL); + + /* Launch clients as the user; don't give them the wrong euid */ + if (seteuid(getuid()) == -1) { + weston_log("seteuid failed: %s\n", strerror(errno)); + return; + } + + /* Duplicate fd to unset the CLOEXEC flag. We don't need to worry about + * clobbering fd, as we'll exit/exec either way. + */ + fd = dup(fd); + if (fd == -1) { + weston_log("dup failed: %s\n", strerror(errno)); + return; + } + + snprintf(s, sizeof s, "%d", fd); + setenv("WAYLAND_SOCKET", s, 1); + + execl("/bin/sh", "/bin/sh", "-c", command, NULL); + weston_log("executing '%s' failed: %s", command, strerror(errno)); +} + +static struct wl_client * +launch_shell_client(struct ivi_compositor *ivi, const char *command) +{ + struct wl_client *client; + int sock[2]; + pid_t pid; + + weston_log("launching' %s'\n", command); + + if (os_socketpair_cloexec(AF_UNIX, SOCK_STREAM, 0, sock) < 0) { + weston_log("socketpair failed while launching '%s': %s\n", + command, strerror(errno)); + return NULL; + } + + pid = fork(); + if (pid == -1) { + close(sock[0]); + close(sock[1]); + weston_log("fork failed while launching '%s': %s\n", + command, strerror(errno)); + return NULL; + } + + if (pid == 0) { + client_exec(command, sock[1]); + _Exit(EXIT_FAILURE); + } + close(sock[1]); + + client = wl_client_create(ivi->compositor->wl_display, sock[0]); + if (!client) { + close(sock[0]); + weston_log("Failed to create wayland client for '%s'", + command); + return NULL; + } + + return client; +} + +int +ivi_launch_shell_client(struct ivi_compositor *ivi) +{ + struct weston_config_section *section; + char *command = NULL; + + section = weston_config_get_section(ivi->config, "shell-client", + NULL, NULL); + if (section) + weston_config_section_get_string(section, "command", + &command, NULL); + + if (!command) + return -1; + + ivi->shell_client.client = launch_shell_client(ivi, command); + if (!ivi->shell_client.client) + return -1; + + return 0; +} + +static void +shell_ready(struct wl_client *client, struct wl_resource *shell_res) +{ + struct ivi_compositor *ivi = wl_resource_get_user_data(shell_res); + struct ivi_output *output; + struct ivi_surface *surface, *tmp; + + /* Init already finished. Do nothing */ + if (ivi->shell_client.ready) + return; + + ivi->shell_client.ready = true; + /* TODO: Create a black screen and remove it here */ + + wl_list_for_each(output, &ivi->outputs, link) { + struct weston_desktop_surface *dsurf; + struct weston_geometry geom; + + output->area.x = 0; + output->area.y = 0; + output->area.width = output->output->width; + output->area.height = output->output->height; + + if (output->top) { + dsurf = output->top->dsurface; + geom = weston_desktop_surface_get_geometry(dsurf); + + output->area.y += geom.height; + output->area.height -= geom.height; + } + if (output->bottom) { + dsurf = output->bottom->dsurface; + geom = weston_desktop_surface_get_geometry(dsurf); + + output->area.height -= geom.height; + } + if (output->left) { + dsurf = output->left->dsurface; + geom = weston_desktop_surface_get_geometry(dsurf); + + output->area.x += geom.width; + output->area.width -= geom.width; + } + if (output->right) { + dsurf = output->right->dsurface; + geom = weston_desktop_surface_get_geometry(dsurf); + + output->area.width -= geom.width; + } + + weston_log("Usable area: %dx%d+%d,%d\n", + output->area.width, output->area.height, + output->area.x, output->area.y); + } + + wl_list_for_each_safe(surface, tmp, &ivi->pending_surfaces, link) { + wl_list_remove(&surface->link); + ivi_set_desktop_surface(surface); + } +} + +static void +shell_set_background(struct wl_client *client, + struct wl_resource *shell_res, + struct wl_resource *surface_res, + struct wl_resource *output_res) +{ + struct weston_head *head = weston_head_from_resource(output_res); + struct weston_output *woutput = weston_head_get_output(head); + struct ivi_output *output = to_ivi_output(woutput); + struct weston_surface *wsurface = wl_resource_get_user_data(surface_res); + struct weston_desktop_surface *dsurface; + struct ivi_surface *surface; + + dsurface = weston_surface_get_desktop_surface(wsurface); + if (!dsurface) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "surface must be a desktop surface"); + return; + } + + surface = weston_desktop_surface_get_user_data(dsurface); + if (surface->role != IVI_SURFACE_ROLE_NONE) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "surface already has another ivi role"); + return; + } + + if (output->background) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_BACKGROUND_EXISTS, + "output already has background"); + return; + } + + surface->role = IVI_SURFACE_ROLE_BACKGROUND; + surface->bg.output = output; + wl_list_remove(&surface->link); + wl_list_init(&surface->link); + + output->background = surface; + + weston_desktop_surface_set_maximized(dsurface, true); + weston_desktop_surface_set_size(dsurface, + output->output->width, + output->output->height); +} + +static void +shell_set_panel(struct wl_client *client, + struct wl_resource *shell_res, + struct wl_resource *surface_res, + struct wl_resource *output_res, + uint32_t edge) +{ + struct weston_head *head = weston_head_from_resource(output_res); + struct weston_output *woutput = weston_head_get_output(head); + struct ivi_output *output = to_ivi_output(woutput); + struct weston_surface *wsurface = wl_resource_get_user_data(surface_res); + struct weston_desktop_surface *dsurface; + struct ivi_surface *surface; + struct ivi_surface **member; + int32_t width = 0, height = 0; + + dsurface = weston_surface_get_desktop_surface(wsurface); + if (!dsurface) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "surface must be a desktop surface"); + return; + } + + surface = weston_desktop_surface_get_user_data(dsurface); + if (surface->role != IVI_SURFACE_ROLE_NONE) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "surface already has another ivi role"); + return; + } + + switch (edge) { + case AGL_SHELL_EDGE_TOP: + member = &output->top; + break; + case AGL_SHELL_EDGE_BOTTOM: + member = &output->bottom; + break; + case AGL_SHELL_EDGE_LEFT: + member = &output->left; + break; + case AGL_SHELL_EDGE_RIGHT: + member = &output->right; + break; + default: + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_INVALID_ARGUMENT, + "invalid edge for panel"); + return; + } + + if (*member) { + wl_resource_post_error(shell_res, + AGL_SHELL_ERROR_BACKGROUND_EXISTS, + "output already has panel on this edge"); + return; + } + + surface->role = IVI_SURFACE_ROLE_PANEL; + surface->panel.output = output; + surface->panel.edge = edge; + wl_list_remove(&surface->link); + wl_list_init(&surface->link); + + *member = surface; + + switch (surface->panel.edge) { + case AGL_SHELL_EDGE_TOP: + case AGL_SHELL_EDGE_BOTTOM: + width = woutput->width; + break; + case AGL_SHELL_EDGE_LEFT: + case AGL_SHELL_EDGE_RIGHT: + height = woutput->height; + break; + } + + weston_desktop_surface_set_size(dsurface, width, height); +} + +static const struct agl_shell_interface agl_shell_implementation = { + .ready = shell_ready, + .set_background = shell_set_background, + .set_panel = shell_set_panel, +}; + +static void +unbind_agl_shell(struct wl_resource *resource) +{ +} + +static void +bind_agl_shell(struct wl_client *client, + void *data, uint32_t version, uint32_t id) +{ + struct ivi_compositor *ivi = data; + struct wl_resource *resource; + + resource = wl_resource_create(client, &agl_shell_interface, + 1, id); + if (!resource) { + wl_client_post_no_memory(client); + return; + } + +#if 0 + if (ivi->shell_client.client != client) { + wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT, + "client not authorized to use agl_shell"); + return; + } +#endif + + if (ivi->shell_client.resource) { + wl_resource_post_error(resource, WL_DISPLAY_ERROR_INVALID_OBJECT, + "agl_shell has already been bound"); + return; + } + + wl_resource_set_implementation(resource, &agl_shell_implementation, + ivi, unbind_agl_shell); + ivi->shell_client.resource = resource; +} + +int +ivi_shell_create_global(struct ivi_compositor *ivi) +{ + ivi->agl_shell = wl_global_create(ivi->compositor->wl_display, + &agl_shell_interface, 1, + ivi, bind_agl_shell); + if (!ivi->agl_shell) { + weston_log("Failed to create wayland global.\n"); + return -1; + } + + return 0; +} |