diff --git a/configure.ac b/configure.ac index ecaea63f..7329c068 100644 --- a/configure.ac +++ b/configure.ac @@ -128,6 +128,24 @@ if test x$enable_android_compositor = xyes; then PKG_CHECK_MODULES(ANDROID_COMPOSITOR, [mtdev >= 1.1.0]) fi + +AC_ARG_ENABLE(rpi-compositor, + AS_HELP_STRING([--disable-rpi-compositor], + [do not build the Raspberry Pi backend]),, + enable_rpi_compositor=yes) +AM_CONDITIONAL(ENABLE_RPI_COMPOSITOR, test "x$enable_rpi_compositor" = "xyes") +have_bcm_host="no" +if test x$enable_rpi_compositor = xyes; then + AC_DEFINE([BUILD_RPI_COMPOSITOR], [1], [Build the compositor for Raspberry Pi]) + PKG_CHECK_MODULES(RPI_COMPOSITOR, [libudev >= 136 mtdev >= 1.1.0]) + PKG_CHECK_MODULES(RPI_BCM_HOST, [bcm_host], + [have_bcm_host="yes" + AC_DEFINE([HAVE_BCM_HOST], [1], [have Raspberry Pi BCM headers])], + [AC_MSG_WARN([Raspberry Pi BCM host libraries not found, will use stubs instead.])]) +fi +AM_CONDITIONAL(INSTALL_RPI_COMPOSITOR, test "x$have_bcm_host" = "xyes") + + AC_ARG_WITH(cairo-glesv2, AS_HELP_STRING([--with-cairo-glesv2], [Use GLESv2 cairo instead of full GL])) diff --git a/src/Makefile.am b/src/Makefile.am index 8f2714d9..fb5f8fc6 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -82,6 +82,12 @@ module_LTLIBRARIES = \ # The real backend is built by the Android build system. noinst_LTLIBRARIES = $(android_backend) +if INSTALL_RPI_COMPOSITOR +module_LTLIBRARIES += $(rpi_backend) +else +noinst_LTLIBRARIES += $(rpi_backend) +endif + if ENABLE_X11_COMPOSITOR x11_backend = x11-backend.la x11_backend_la_LDFLAGS = -module -avoid-version @@ -145,6 +151,27 @@ android_backend_la_SOURCES = \ android-framebuffer.h endif +if ENABLE_RPI_COMPOSITOR +rpi_backend = rpi-backend.la +rpi_backend_la_LDFLAGS = -module -avoid-version +rpi_backend_la_LIBADD = $(COMPOSITOR_LIBS) \ + $(RPI_COMPOSITOR_LIBS) \ + $(RPI_BCM_HOST_LIBS) \ + ../shared/libshared.la +rpi_backend_la_CFLAGS = \ + $(GCC_CFLAGS) \ + $(COMPOSITOR_CFLAGS) \ + $(RPI_COMPOSITOR_CFLAGS) \ + $(RPI_BCM_HOST_CFLAGS) +rpi_backend_la_SOURCES = \ + compositor-rpi.c \ + rpi-bcm-stubs.h \ + tty.c \ + evdev.c \ + evdev.h \ + evdev-touchpad.c +endif + if ENABLE_HEADLESS_COMPOSITOR headless_backend = headless-backend.la headless_backend_la_LDFLAGS = -module -avoid-version diff --git a/src/compositor-rpi.c b/src/compositor-rpi.c new file mode 100644 index 00000000..f6a6f648 --- /dev/null +++ b/src/compositor-rpi.c @@ -0,0 +1,778 @@ +/* + * Copyright © 2008-2011 Kristian Høgsberg + * Copyright © 2011 Intel Corporation + * Copyright © 2012 Raspberry Pi Foundation + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of the copyright holders not be used in + * advertising or publicity pertaining to distribution of the software + * without specific, written prior permission. The copyright holders make + * no representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#define _GNU_SOURCE + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "config.h" + +#ifdef HAVE_BCM_HOST +# include +#else +# include "rpi-bcm-stubs.h" +#endif + +#include "compositor.h" +#include "evdev.h" + +struct rpi_compositor; + +struct rpi_output { + struct rpi_compositor *compositor; + struct weston_output base; + + struct weston_mode mode; + struct wl_event_source *finish_frame_timer; + + DISPMANX_DISPLAY_HANDLE_T display; + EGL_DISPMANX_WINDOW_T egl_window; + DISPMANX_ELEMENT_HANDLE_T egl_element; +}; + +struct rpi_seat { + struct weston_seat base; + struct wl_list devices_list; + + struct udev_monitor *udev_monitor; + struct wl_event_source *udev_monitor_source; + char *seat_id; +}; + +struct rpi_compositor { + struct weston_compositor base; + uint32_t prev_state; + + struct udev *udev; + struct tty *tty; +}; + +static inline struct rpi_output * +to_rpi_output(struct weston_output *base) +{ + return container_of(base, struct rpi_output, base); +} + +static inline struct rpi_seat * +to_rpi_seat(struct weston_seat *base) +{ + return container_of(base, struct rpi_seat, base); +} + +static inline struct rpi_compositor * +to_rpi_compositor(struct weston_compositor *base) +{ + return container_of(base, struct rpi_compositor, base); +} + +static const char * +egl_error_string(EGLint code) +{ +#define MYERRCODE(x) case x: return #x; + switch (code) { + MYERRCODE(EGL_SUCCESS) + MYERRCODE(EGL_NOT_INITIALIZED) + MYERRCODE(EGL_BAD_ACCESS) + MYERRCODE(EGL_BAD_ALLOC) + MYERRCODE(EGL_BAD_ATTRIBUTE) + MYERRCODE(EGL_BAD_CONTEXT) + MYERRCODE(EGL_BAD_CONFIG) + MYERRCODE(EGL_BAD_CURRENT_SURFACE) + MYERRCODE(EGL_BAD_DISPLAY) + MYERRCODE(EGL_BAD_SURFACE) + MYERRCODE(EGL_BAD_MATCH) + MYERRCODE(EGL_BAD_PARAMETER) + MYERRCODE(EGL_BAD_NATIVE_PIXMAP) + MYERRCODE(EGL_BAD_NATIVE_WINDOW) + MYERRCODE(EGL_CONTEXT_LOST) + default: + return "unknown"; + } +#undef MYERRCODE +} + +static void +print_egl_error_state(void) +{ + EGLint code; + + code = eglGetError(); + weston_log("EGL error state: %s (0x%04lx)\n", + egl_error_string(code), (long)code); +} + +static int +rpi_finish_frame(void *data) +{ + struct rpi_output *output = data; + + weston_output_finish_frame(&output->base, + weston_compositor_get_time()); + return 1; +} + +static void +rpi_output_repaint(struct weston_output *base, pixman_region32_t *damage) +{ + struct rpi_output *output = to_rpi_output(base); + struct rpi_compositor *compositor = output->compositor; + + compositor->base.renderer->repaint_output(&output->base, damage); + + /* FIXME: hook into page flip done */ + wl_event_source_timer_update(output->finish_frame_timer, 10); +} + +static void +rpi_output_destroy(struct weston_output *base) +{ + struct rpi_output *output = to_rpi_output(base); + DISPMANX_UPDATE_HANDLE_T update; + + wl_event_source_remove(output->finish_frame_timer); + + eglDestroySurface(output->compositor->base.egl_display, + output->base.egl_surface); + + wl_list_remove(&output->base.link); + weston_output_destroy(&output->base); + + update = vc_dispmanx_update_start(0); + vc_dispmanx_element_remove(update, output->egl_element); + vc_dispmanx_update_submit_sync(update); + + /* XXX: how to destroy Dispmanx objects? */ + vc_dispmanx_display_close(output->display); + + free(output); +} + +static int +rpi_output_create(struct rpi_compositor *compositor) +{ + struct rpi_output *output; + DISPMANX_MODEINFO_T modeinfo; + DISPMANX_UPDATE_HANDLE_T update; + VC_RECT_T dst_rect; + VC_RECT_T src_rect; + int ret; + float mm_width, mm_height; + VC_DISPMANX_ALPHA_T alpharules = { + DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS, + 255, /* opacity 0-255 */ + 0 /* mask resource handle */ + }; + struct wl_event_loop *loop; + + output = calloc(1, sizeof *output); + if (!output) + return -1; + + output->compositor = compositor; + + output->display = vc_dispmanx_display_open(DISPMANX_ID_HDMI); + if (!output->display) { + weston_log("Failed to open dispmanx HDMI display."); + goto out_free; + } + + ret = vc_dispmanx_display_get_info(output->display, &modeinfo); + if (ret < 0) { + weston_log("Failed to get display mode information.\n"); + goto out_dmx_close; + } + + vc_dispmanx_rect_set(&dst_rect, 0, 0, modeinfo.width, modeinfo.height); + vc_dispmanx_rect_set(&src_rect, 0, 0, + modeinfo.width << 16, modeinfo.height << 16); + + update = vc_dispmanx_update_start(0); + output->egl_element = vc_dispmanx_element_add(update, + output->display, + 0 /* layer */, + &dst_rect, + 0 /* src resource */, + &src_rect, + DISPMANX_PROTECTION_NONE, + &alpharules, + NULL /* clamp */, + DISPMANX_NO_ROTATE); + vc_dispmanx_update_submit_sync(update); + + output->egl_window.element = output->egl_element; + output->egl_window.width = modeinfo.width; + output->egl_window.height = modeinfo.height; + + output->base.egl_surface = + eglCreateWindowSurface(compositor->base.egl_display, + compositor->base.egl_config, + (EGLNativeWindowType)&output->egl_window, + NULL); + if (output->base.egl_surface == EGL_NO_SURFACE) { + print_egl_error_state(); + weston_log("Failed to create output surface.\n"); + goto out_dmx; + } + + if (!eglSurfaceAttrib(compositor->base.egl_display, + output->base.egl_surface, + EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED)) { + print_egl_error_state(); + weston_log("Failed to set swap behaviour to preserved.\n"); + goto out_surface; + } + + output->base.repaint = rpi_output_repaint; + output->base.destroy = rpi_output_destroy; + output->base.assign_planes = NULL; + output->base.set_backlight = NULL; + output->base.set_dpms = NULL; + output->base.switch_mode = NULL; + + /* XXX: use tvservice to get information from and control the + * HDMI and SDTV outputs. See: + * /opt/vc/include/interface/vmcs_host/vc_tvservice.h + */ + + /* only one static mode in list */ + output->mode.flags = + WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED; + output->mode.width = modeinfo.width; + output->mode.height = modeinfo.height; + output->mode.refresh = 60000; + wl_list_init(&output->base.mode_list); + wl_list_insert(&output->base.mode_list, &output->mode.link); + + output->base.current = &output->mode; + output->base.origin = &output->mode; + output->base.subpixel = WL_OUTPUT_SUBPIXEL_UNKNOWN; + output->base.make = "unknown"; + output->base.model = "unknown"; + + /* guess 96 dpi */ + mm_width = modeinfo.width * (25.4f / 96.0f); + mm_height = modeinfo.height * (25.4f / 96.0f); + + weston_output_init(&output->base, &compositor->base, + 0, 0, round(mm_width), round(mm_height), + WL_OUTPUT_TRANSFORM_NORMAL); + wl_list_insert(compositor->base.output_list.prev, &output->base.link); + + loop = wl_display_get_event_loop(compositor->base.wl_display); + output->finish_frame_timer = + wl_event_loop_add_timer(loop, rpi_finish_frame, output); + + weston_log("Raspberry Pi HDMI output %dx%d px\n", + output->mode.width, output->mode.height); + weston_log_continue(STAMP_SPACE "guessing %d Hz and 96 dpi\n", + output->mode.refresh / 1000); + + return 0; + +out_surface: + eglDestroySurface(compositor->base.egl_display, + output->base.egl_surface); + +out_dmx: + /* XXX: how to destroy Dispmanx objects? */ + +out_dmx_close: + vc_dispmanx_display_close(output->display); + +out_free: + free(output); + return -1; +} + +static void +rpi_led_update(struct weston_seat *seat_base, enum weston_led leds) +{ + struct rpi_seat *seat = to_rpi_seat(seat_base); + struct evdev_device *device; + + wl_list_for_each(device, &seat->devices_list, link) + evdev_led_update(device, leds); +} + +static const char default_seat[] = "seat0"; + +static void +device_added(struct udev_device *udev_device, struct rpi_seat *master) +{ + struct evdev_device *device; + const char *devnode; + const char *device_seat; + int fd; + + device_seat = udev_device_get_property_value(udev_device, "ID_SEAT"); + if (!device_seat) + device_seat = default_seat; + + if (strcmp(device_seat, master->seat_id)) + return; + + devnode = udev_device_get_devnode(udev_device); + + /* Use non-blocking mode so that we can loop on read on + * evdev_device_data() until all events on the fd are + * read. mtdev_get() also expects this. */ + fd = open(devnode, O_RDWR | O_NONBLOCK | O_CLOEXEC); + if (fd < 0) { + weston_log("opening input device '%s' failed.\n", devnode); + return; + } + + device = evdev_device_create(&master->base, devnode, fd); + if (!device) { + close(fd); + weston_log("not using input device '%s'.\n", devnode); + return; + } + + wl_list_insert(master->devices_list.prev, &device->link); +} + +static void +evdev_add_devices(struct udev *udev, struct weston_seat *seat_base) +{ + struct rpi_seat *seat = to_rpi_seat(seat_base); + struct udev_enumerate *e; + struct udev_list_entry *entry; + struct udev_device *device; + const char *path, *sysname; + + e = udev_enumerate_new(udev); + udev_enumerate_add_match_subsystem(e, "input"); + udev_enumerate_scan_devices(e); + udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) { + path = udev_list_entry_get_name(entry); + device = udev_device_new_from_syspath(udev, path); + + sysname = udev_device_get_sysname(device); + if (strncmp("event", sysname, 5) != 0) { + udev_device_unref(device); + continue; + } + + device_added(device, seat); + + udev_device_unref(device); + } + udev_enumerate_unref(e); + + evdev_notify_keyboard_focus(&seat->base, &seat->devices_list); + + if (wl_list_empty(&seat->devices_list)) { + weston_log( + "warning: no input devices on entering Weston. " + "Possible causes:\n" + "\t- no permissions to read /dev/input/event*\n" + "\t- seats misconfigured " + "(Weston backend option 'seat', " + "udev device property ID_SEAT)\n"); + } +} + +static int +evdev_udev_handler(int fd, uint32_t mask, void *data) +{ + struct rpi_seat *seat = data; + struct udev_device *udev_device; + struct evdev_device *device, *next; + const char *action; + const char *devnode; + + udev_device = udev_monitor_receive_device(seat->udev_monitor); + if (!udev_device) + return 1; + + action = udev_device_get_action(udev_device); + if (!action) + goto out; + + if (strncmp("event", udev_device_get_sysname(udev_device), 5) != 0) + goto out; + + if (!strcmp(action, "add")) { + device_added(udev_device, seat); + } + else if (!strcmp(action, "remove")) { + devnode = udev_device_get_devnode(udev_device); + wl_list_for_each_safe(device, next, &seat->devices_list, link) + if (!strcmp(device->devnode, devnode)) { + weston_log("input device %s, %s removed\n", + device->devname, device->devnode); + evdev_device_destroy(device); + break; + } + } + +out: + udev_device_unref(udev_device); + + return 0; +} + +static int +evdev_enable_udev_monitor(struct udev *udev, struct weston_seat *seat_base) +{ + struct rpi_seat *master = to_rpi_seat(seat_base); + struct wl_event_loop *loop; + struct weston_compositor *c = master->base.compositor; + int fd; + + master->udev_monitor = udev_monitor_new_from_netlink(udev, "udev"); + if (!master->udev_monitor) { + weston_log("udev: failed to create the udev monitor\n"); + return 0; + } + + udev_monitor_filter_add_match_subsystem_devtype(master->udev_monitor, + "input", NULL); + + if (udev_monitor_enable_receiving(master->udev_monitor)) { + weston_log("udev: failed to bind the udev monitor\n"); + udev_monitor_unref(master->udev_monitor); + return 0; + } + + loop = wl_display_get_event_loop(c->wl_display); + fd = udev_monitor_get_fd(master->udev_monitor); + master->udev_monitor_source = + wl_event_loop_add_fd(loop, fd, WL_EVENT_READABLE, + evdev_udev_handler, master); + if (!master->udev_monitor_source) { + udev_monitor_unref(master->udev_monitor); + return 0; + } + + return 1; +} + +static void +evdev_disable_udev_monitor(struct weston_seat *seat_base) +{ + struct rpi_seat *seat = to_rpi_seat(seat_base); + + if (!seat->udev_monitor) + return; + + udev_monitor_unref(seat->udev_monitor); + seat->udev_monitor = NULL; + wl_event_source_remove(seat->udev_monitor_source); + seat->udev_monitor_source = NULL; +} + +static void +evdev_input_create(struct weston_compositor *c, struct udev *udev, + const char *seat_id) +{ + struct rpi_seat *seat; + + seat = malloc(sizeof *seat); + if (seat == NULL) + return; + + memset(seat, 0, sizeof *seat); + weston_seat_init(&seat->base, c); + seat->base.led_update = rpi_led_update; + + wl_list_init(&seat->devices_list); + seat->seat_id = strdup(seat_id); + if (!evdev_enable_udev_monitor(udev, &seat->base)) { + free(seat->seat_id); + free(seat); + return; + } + + evdev_add_devices(udev, &seat->base); +} + +static void +evdev_remove_devices(struct weston_seat *seat_base) +{ + struct rpi_seat *seat = to_rpi_seat(seat_base); + struct evdev_device *device, *next; + + wl_list_for_each_safe(device, next, &seat->devices_list, link) + evdev_device_destroy(device); + + if (seat->base.seat.keyboard) + notify_keyboard_focus_out(&seat->base); +} + +static void +evdev_input_destroy(struct weston_seat *seat_base) +{ + struct rpi_seat *seat = to_rpi_seat(seat_base); + + evdev_remove_devices(seat_base); + evdev_disable_udev_monitor(&seat->base); + + weston_seat_release(seat_base); + free(seat->seat_id); + free(seat); +} + +static int +rpi_init_egl(struct rpi_compositor *compositor) +{ + EGLint eglmajor, eglminor; + int ret; + EGLint num_config; + + static const EGLint config_attrs[] = { + EGL_SURFACE_TYPE, EGL_WINDOW_BIT | + EGL_SWAP_BEHAVIOR_PRESERVED_BIT, + EGL_RED_SIZE, 1, + EGL_GREEN_SIZE, 1, + EGL_BLUE_SIZE, 1, + EGL_ALPHA_SIZE, 0, + EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, + EGL_NONE + }; + + compositor->base.egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY); + if (compositor->base.egl_display == EGL_NO_DISPLAY) { + weston_log("Failed to create EGL display.\n"); + print_egl_error_state(); + return -1; + } + + ret = eglInitialize(compositor->base.egl_display, &eglmajor, &eglminor); + if (!ret) { + weston_log("Failed to initialise EGL.\n"); + print_egl_error_state(); + return -1; + } + + ret = eglChooseConfig(compositor->base.egl_display, config_attrs, + &compositor->base.egl_config, 1, &num_config); + if (ret < 0 || num_config != 1) { + weston_log("Failed to find an EGL config (found %d configs).\n", + num_config); + print_egl_error_state(); + return -1; + } + + return 0; +} + +static void +rpi_fini_egl(struct rpi_compositor *compositor) +{ + gles2_renderer_destroy(&compositor->base); + + eglMakeCurrent(compositor->base.egl_display, + EGL_NO_SURFACE, EGL_NO_SURFACE, + EGL_NO_CONTEXT); + + eglTerminate(compositor->base.egl_display); + eglReleaseThread(); +} + +static void +rpi_compositor_destroy(struct weston_compositor *base) +{ + struct rpi_compositor *compositor = to_rpi_compositor(base); + struct weston_seat *seat, *next; + + wl_list_for_each_safe(seat, next, &compositor->base.seat_list, link) + evdev_input_destroy(seat); + + /* destroys outputs, too */ + weston_compositor_shutdown(&compositor->base); + + rpi_fini_egl(compositor); + tty_destroy(compositor->tty); + + bcm_host_deinit(); + free(compositor); +} + +static void +vt_func(struct weston_compositor *base, int event) +{ + struct rpi_compositor *compositor = to_rpi_compositor(base); + struct weston_seat *seat; + struct weston_output *output; + + switch (event) { + case TTY_ENTER_VT: + weston_log("entering VT\n"); + compositor->base.focus = 1; + compositor->base.state = compositor->prev_state; + weston_compositor_damage_all(&compositor->base); + wl_list_for_each(seat, &compositor->base.seat_list, link) { + evdev_add_devices(compositor->udev, seat); + evdev_enable_udev_monitor(compositor->udev, seat); + } + break; + case TTY_LEAVE_VT: + weston_log("leaving VT\n"); + wl_list_for_each(seat, &compositor->base.seat_list, link) { + evdev_disable_udev_monitor(seat); + evdev_remove_devices(seat); + } + + compositor->base.focus = 0; + compositor->prev_state = compositor->base.state; + compositor->base.state = WESTON_COMPOSITOR_SLEEPING; + + /* If we have a repaint scheduled (either from a + * pending pageflip or the idle handler), make sure we + * cancel that so we don't try to pageflip when we're + * vt switched away. The SLEEPING state will prevent + * further attemps at repainting. When we switch + * back, we schedule a repaint, which will process + * pending frame callbacks. */ + + wl_list_for_each(output, + &compositor->base.output_list, link) { + output->repaint_needed = 0; + } + + break; + }; +} + +static void +rpi_restore(struct weston_compositor *base) +{ + struct rpi_compositor *compositor = to_rpi_compositor(base); + + tty_reset(compositor->tty); +} + +static void +switch_vt_binding(struct wl_seat *seat, uint32_t time, uint32_t key, void *data) +{ + struct rpi_compositor *ec = data; + + tty_activate_vt(ec->tty, key - KEY_F1 + 1); +} + +static struct weston_compositor * +rpi_compositor_create(struct wl_display *display, int argc, char *argv[], + const char *config_file, int tty) +{ + struct rpi_compositor *compositor; + struct weston_output *output; + const char *seat = default_seat; + uint32_t key; + + weston_log("initializing Raspberry Pi backend\n"); + + compositor = calloc(1, sizeof *compositor); + if (compositor == NULL) + return NULL; + + if (weston_compositor_init(&compositor->base, display, argc, argv, + config_file) < 0) + goto out_free; + + compositor->udev = udev_new(); + if (compositor->udev == NULL) { + weston_log("Failed to initialize udev context.\n"); + goto out_compositor; + } + + compositor->tty = tty_create(&compositor->base, vt_func, tty); + if (!compositor->tty) { + weston_log("Failed to initialize tty.\n"); + goto out_udev; + } + + compositor->base.destroy = rpi_compositor_destroy; + compositor->base.restore = rpi_restore; + + compositor->base.focus = 1; + compositor->prev_state = WESTON_COMPOSITOR_ACTIVE; + + for (key = KEY_F1; key < KEY_F9; key++) + weston_compositor_add_key_binding(&compositor->base, key, + MODIFIER_CTRL | MODIFIER_ALT, + switch_vt_binding, compositor); + + bcm_host_init(); + + if (rpi_init_egl(compositor) < 0) + goto out_tty; + + if (rpi_output_create(compositor) < 0) + goto out_egl; + + if (gles2_renderer_init(&compositor->base) < 0) + goto out_output; + + evdev_input_create(&compositor->base, compositor->udev, seat); + + return &compositor->base; + +out_output: + wl_list_for_each(output, &compositor->base.output_list, link) + rpi_output_destroy(output); + +out_egl: + rpi_fini_egl(compositor); + +out_tty: + tty_destroy(compositor->tty); + +out_udev: + udev_unref(compositor->udev); + +out_compositor: + weston_compositor_shutdown(&compositor->base); + +out_free: + bcm_host_deinit(); + free(compositor); + + return NULL; +} + +WL_EXPORT struct weston_compositor * +backend_init(struct wl_display *display, int argc, char *argv[], + const char *config_file) +{ + int tty = 0; /* default to current tty */ + + const struct weston_option rpi_options[] = { + { WESTON_OPTION_INTEGER, "tty", 0, &tty }, + }; + + parse_options(rpi_options, ARRAY_LENGTH(rpi_options), argc, argv); + + return rpi_compositor_create(display, argc, argv, config_file, tty); +} diff --git a/src/rpi-bcm-stubs.h b/src/rpi-bcm-stubs.h new file mode 100644 index 00000000..3d41888d --- /dev/null +++ b/src/rpi-bcm-stubs.h @@ -0,0 +1,184 @@ +/* +Copyright (c) 2012, Broadcom Europe Ltd +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/* + * This file provides just enough types and stubs, so that the rpi-backend + * can be built without the real headers and libraries of the Raspberry Pi. + * + * This file CANNOT be used to build a working rpi-backend, it is intended + * only for build-testing, when the proper headers are not available. + */ + +#ifndef RPI_BCM_STUBS +#define RPI_BCM_STUBS + +#include + +/* from /opt/vc/include/bcm_host.h */ + +static inline void bcm_host_init(void) {} +static inline void bcm_host_deinit(void) {} + +/* from /opt/vc/include/interface/vctypes/vc_display_types.h */ + +typedef enum +{ + VCOS_DISPLAY_INPUT_FORMAT_INVALID = 0, +} DISPLAY_INPUT_FORMAT_T; + +/* from /opt/vc/include/interface/vctypes/vc_image_types.h */ + +typedef struct tag_VC_RECT_T { + int32_t x; + int32_t y; + int32_t width; + int32_t height; +} VC_RECT_T; + +typedef enum { + VC_IMAGE_ROT0, +} VC_IMAGE_TRANSFORM_T; + +/* from /opt/vc/include/interface/vmcs_host/vc_dispmanx_types.h */ + +typedef uint32_t DISPMANX_DISPLAY_HANDLE_T; +typedef uint32_t DISPMANX_UPDATE_HANDLE_T; +typedef uint32_t DISPMANX_ELEMENT_HANDLE_T; +typedef uint32_t DISPMANX_RESOURCE_HANDLE_T; +typedef uint32_t DISPMANX_PROTECTION_T; + +#define DISPMANX_NO_HANDLE 0 +#define DISPMANX_PROTECTION_NONE 0 +#define DISPMANX_ID_HDMI 2 + +typedef enum { + /* Bottom 2 bits sets the alpha mode */ + DISPMANX_FLAGS_ALPHA_FROM_SOURCE = 0, + DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS = 1, + DISPMANX_FLAGS_ALPHA_FIXED_NON_ZERO = 2, + DISPMANX_FLAGS_ALPHA_FIXED_EXCEED_0X07 = 3, + + DISPMANX_FLAGS_ALPHA_PREMULT = 1 << 16, + DISPMANX_FLAGS_ALPHA_MIX = 1 << 17 +} DISPMANX_FLAGS_ALPHA_T; + +typedef struct { + DISPMANX_FLAGS_ALPHA_T flags; + uint32_t opacity; + DISPMANX_RESOURCE_HANDLE_T mask; +} VC_DISPMANX_ALPHA_T; + +typedef struct { + int32_t width; + int32_t height; + VC_IMAGE_TRANSFORM_T transform; + DISPLAY_INPUT_FORMAT_T input_format; +} DISPMANX_MODEINFO_T; + +typedef enum { + DISPMANX_NO_ROTATE = 0, +} DISPMANX_TRANSFORM_T; + +typedef struct { + uint32_t dummy; +} DISPMANX_CLAMP_T; + +/* from /opt/vc/include/interface/vmcs_host/vc_dispmanx.h */ + +static inline int +vc_dispmanx_rect_set(VC_RECT_T *rect, uint32_t x_offset, uint32_t y_offset, + uint32_t width, uint32_t height) +{ + rect->x = x_offset; + rect->y = y_offset; + rect->width = width; + rect->height = height; + return 0; +} + +static inline DISPMANX_DISPLAY_HANDLE_T +vc_dispmanx_display_open(uint32_t device) +{ + return -1; +} + +static inline int +vc_dispmanx_display_close(DISPMANX_DISPLAY_HANDLE_T display) +{ + return -1; +} + +static inline int +vc_dispmanx_display_get_info(DISPMANX_DISPLAY_HANDLE_T display, + DISPMANX_MODEINFO_T *pinfo) +{ + return -1; +} + +static inline DISPMANX_UPDATE_HANDLE_T +vc_dispmanx_update_start(int32_t priority) +{ + return -1; +} + +static inline DISPMANX_ELEMENT_HANDLE_T +vc_dispmanx_element_add(DISPMANX_UPDATE_HANDLE_T update, + DISPMANX_DISPLAY_HANDLE_T display, + int32_t layer, + const VC_RECT_T *dest_rect, + DISPMANX_RESOURCE_HANDLE_T src, + const VC_RECT_T *src_rect, + DISPMANX_PROTECTION_T protection, + VC_DISPMANX_ALPHA_T *alpha, + DISPMANX_CLAMP_T *clamp, + DISPMANX_TRANSFORM_T transform) +{ + return -1; +} + +static inline int +vc_dispmanx_element_remove(DISPMANX_UPDATE_HANDLE_T update, + DISPMANX_ELEMENT_HANDLE_T element) +{ + return -1; +} + +static inline int +vc_dispmanx_update_submit_sync(DISPMANX_UPDATE_HANDLE_T update) +{ + return -1; +} + +/* from /opt/vc/include/EGL/eglplatform.h */ + +typedef struct { + DISPMANX_ELEMENT_HANDLE_T element; + int width; + int height; +} EGL_DISPMANX_WINDOW_T; + +#endif /* RPI_BCM_STUBS */