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-rw-r--r--CMake/FindGBM.cmake39
-rw-r--r--CMake/FindSystemd.cmake40
-rw-r--r--CMakeLists.txt6
-rw-r--r--backend/CMakeLists.txt21
-rw-r--r--backend/backend.c36
-rw-r--r--backend/drm/backend.c103
-rw-r--r--backend/drm/drm.c418
-rw-r--r--backend/drm/udev.c214
-rw-r--r--backend/egl.c178
-rw-r--r--example/CMakeLists.txt5
-rw-r--r--example/main.c142
-rw-r--r--include/backend.h17
-rw-r--r--include/backend/drm/backend.h34
-rw-r--r--include/backend/drm/drm.h58
-rw-r--r--include/backend/drm/udev.h24
-rw-r--r--include/backend/egl.h17
-rw-r--r--include/session/interface.h21
-rw-r--r--include/wayland.h18
-rw-r--r--include/wlr/backend.h26
-rw-r--r--include/wlr/backend/drm.h16
-rw-r--r--include/wlr/common/log.h1
-rw-r--r--include/wlr/session.h12
-rw-r--r--include/wlr/wayland.h41
-rw-r--r--session/CMakeLists.txt25
-rw-r--r--session/direct.c50
-rw-r--r--session/logind.c223
-rw-r--r--session/session.c42
-rw-r--r--wayland/CMakeLists.txt3
-rw-r--r--wayland/types/wlr_output.c31
-rw-r--r--wayland/types/wlr_wl_output.c16
-rw-r--r--wayland/types/wlr_wl_seat.c19
31 files changed, 1814 insertions, 82 deletions
diff --git a/CMake/FindGBM.cmake b/CMake/FindGBM.cmake
new file mode 100644
index 00000000..85df1f7c
--- /dev/null
+++ b/CMake/FindGBM.cmake
@@ -0,0 +1,39 @@
+#.rst:
+# FindGBM
+# -------
+#
+# Find GBM library
+#
+# Try to find GBM library on UNIX systems. The following values are defined
+#
+# ::
+#
+# GBM_FOUND - True if gbm is available
+# GBM_INCLUDE_DIRS - Include directories for gbm
+# GBM_LIBRARIES - List of libraries for gbm
+# GBM_DEFINITIONS - List of definitions for gbm
+#
+#=============================================================================
+# Copyright (c) 2015 Jari Vetoniemi
+#
+# Distributed under the OSI-approved BSD License (the "License");
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+set_package_properties(GBM PROPERTIES
+ URL "http://www.mesa3d.org/"
+ DESCRIPTION "Generic buffer manager")
+
+find_package(PkgConfig)
+pkg_check_modules(PC_GBM QUIET gbm)
+find_library(GBM_LIBRARIES NAMES gbm HINTS ${PC_GBM_LIBRARY_DIRS})
+find_path(GBM_INCLUDE_DIRS gbm.h HINTS ${PC_GBM_INCLUDE_DIRS})
+
+set(GBM_DEFINITIONS ${PC_GBM_CFLAGS_OTHER})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(GBM DEFAULT_MSG GBM_INCLUDE_DIRS GBM_LIBRARIES)
+mark_as_advanced(GBM_INCLUDE_DIRS GBM_LIBRARIES GBM_DEFINITIONS)
diff --git a/CMake/FindSystemd.cmake b/CMake/FindSystemd.cmake
new file mode 100644
index 00000000..09d60115
--- /dev/null
+++ b/CMake/FindSystemd.cmake
@@ -0,0 +1,40 @@
+#.rst:
+# FindSystemd
+# -------
+#
+# Find Systemd library
+#
+# Try to find Systemd library on UNIX systems. The following values are defined
+#
+# ::
+#
+# SYSTEMD_FOUND - True if Systemd is available
+# SYSTEMD_INCLUDE_DIRS - Include directories for Systemd
+# SYSTEMD_LIBRARIES - List of libraries for Systemd
+# SYSTEMD_DEFINITIONS - List of definitions for Systemd
+#
+#=============================================================================
+# Copyright (c) 2015 Jari Vetoniemi
+#
+# Distributed under the OSI-approved BSD License (the "License");
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+include(FeatureSummary)
+set_package_properties(Systemd PROPERTIES
+ URL "http://freedesktop.org/wiki/Software/systemd/"
+ DESCRIPTION "System and Service Manager")
+
+find_package(PkgConfig)
+pkg_check_modules(PC_SYSTEMD QUIET libsystemd)
+find_library(SYSTEMD_LIBRARIES NAMES systemd ${PC_SYSTEMD_LIBRARY_DIRS})
+find_path(SYSTEMD_INCLUDE_DIRS systemd/sd-login.h HINTS ${PC_SYSTEMD_INCLUDE_DIRS})
+
+set(SYSTEMD_DEFINITIONS ${PC_SYSTEMD_CFLAGS_OTHER})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(SYSTEMD DEFAULT_MSG SYSTEMD_INCLUDE_DIRS SYSTEMD_LIBRARIES)
+mark_as_advanced(SYSTEMD_INCLUDE_DIRS SYSTEMD_LIBRARIES SYSTEMD_DEFINITIONS)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index dd4d9969..616a8911 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,9 +48,10 @@ find_package(WaylandProtocols REQUIRED)
find_package(EGL REQUIRED)
find_package(GLESv2 REQUIRED)
find_package(DRM REQUIRED)
+find_package(GBM REQUIRED)
find_package(LibInput REQUIRED)
-find_package(Udev)
-find_package(Dbus)
+find_package(Udev REQUIRED)
+find_package(Systemd)
include(Wayland)
include(Manpage)
@@ -60,5 +61,6 @@ include_directories(include)
add_subdirectory(backend)
add_subdirectory(common)
add_subdirectory(wayland)
+add_subdirectory(session)
add_subdirectory(example)
diff --git a/backend/CMakeLists.txt b/backend/CMakeLists.txt
index 830a2158..fc1793cf 100644
--- a/backend/CMakeLists.txt
+++ b/backend/CMakeLists.txt
@@ -1,17 +1,30 @@
include_directories(
${PROTOCOLS_INCLUDE_DIRS}
${WAYLAND_INCLUDE_DIR}
+ ${DRM_INCLUDE_DIRS}
)
add_library(wlr-backend
- wayland/backend.c
- wayland/registry.c
- wayland/wl_seat.c
- wayland/wl_output.c
+ #wayland/backend.c
+ #wayland/registry.c
+ #wayland/wl_seat.c
+ #wayland/wl_output.c
+ drm/backend.c
+ drm/drm.c
+ drm/udev.c
+ backend.c
+ egl.c
)
target_link_libraries(wlr-backend
wlr-common
wlr-wayland
${WAYLAND_LIBRARIES}
+ ${DRM_LIBRARIES}
+ ${GBM_LIBRARIES}
+ ${GLESv2_LIBRARIES}
+ ${EGL_LIBRARIES}
+ ${SYSTEMD_LIBRARIES}
+ ${UDEV_LIBRARIES}
+ ${GBM_LIBRARIES}
)
diff --git a/backend/backend.c b/backend/backend.c
new file mode 100644
index 00000000..753bb3ae
--- /dev/null
+++ b/backend/backend.c
@@ -0,0 +1,36 @@
+#include <wayland-server.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "common/log.h"
+#include "backend.h"
+
+struct wlr_backend *wlr_backend_create(const struct wlr_backend_impl *impl,
+ struct wlr_backend_state *state) {
+ struct wlr_backend *backend = calloc(1, sizeof(struct wlr_backend));
+ if (!backend) {
+ wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
+ return NULL;
+ }
+ backend->state = state;
+ backend->impl = impl;
+ wl_signal_init(&backend->events.output_add);
+ wl_signal_init(&backend->events.output_remove);
+ wl_signal_init(&backend->events.keyboard_add);
+ wl_signal_init(&backend->events.keyboard_remove);
+ wl_signal_init(&backend->events.pointer_add);
+ wl_signal_init(&backend->events.pointer_remove);
+ wl_signal_init(&backend->events.touch_add);
+ wl_signal_init(&backend->events.touch_remove);
+ return backend;
+}
+
+bool wlr_backend_init(struct wlr_backend *backend) {
+ return backend->impl->init(backend->state);
+}
+
+void wlr_backend_destroy(struct wlr_backend *backend) {
+ backend->impl->destroy(backend->state);
+ // TODO: free outputs
+ free(backend);
+}
diff --git a/backend/drm/backend.c b/backend/drm/backend.c
new file mode 100644
index 00000000..0da84745
--- /dev/null
+++ b/backend/drm/backend.c
@@ -0,0 +1,103 @@
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <wayland-server.h>
+
+#include <wlr/session.h>
+#include <wlr/common/list.h>
+
+#include "backend.h"
+#include "backend/drm/backend.h"
+#include "backend/drm/drm.h"
+#include "backend/drm/udev.h"
+#include "common/log.h"
+
+static bool wlr_drm_backend_init(struct wlr_backend_state *state) {
+ wlr_drm_scan_connectors(state);
+ return true;
+}
+
+static void wlr_drm_backend_destroy(struct wlr_backend_state *state) {
+ if (!state) {
+ return;
+ }
+ // TODO: free outputs in shared backend code
+ wlr_drm_renderer_free(&state->renderer);
+ wlr_udev_free(&state->udev);
+ wlr_session_close_file(state->session, state->fd);
+ wlr_session_finish(state->session);
+ wl_event_source_remove(state->drm_event);
+ free(state);
+}
+
+static struct wlr_backend_impl backend_impl = {
+ .init = wlr_drm_backend_init,
+ .destroy = wlr_drm_backend_destroy
+};
+
+struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
+ struct wlr_session *session) {
+ struct wlr_backend_state *state = calloc(1, sizeof(struct wlr_backend_state));
+ if (!state) {
+ wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
+ return NULL;
+ }
+
+ struct wlr_backend *backend = wlr_backend_create(&backend_impl, state);
+ if (!backend) {
+ wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
+ return NULL;
+ }
+
+ state->backend = backend;
+ state->session = session;
+ state->outputs = list_create();
+ if (!state->outputs) {
+ wlr_log(L_ERROR, "Failed to allocate list");
+ goto error_backend;
+ }
+
+ if (!wlr_udev_init(display, &state->udev)) {
+ wlr_log(L_ERROR, "Failed to start udev");
+ goto error_list;
+ }
+
+ state->fd = wlr_udev_find_gpu(&state->udev, state->session);
+ if (state->fd == -1) {
+ wlr_log(L_ERROR, "Failed to open DRM device");
+ goto error_udev;
+ }
+
+ struct wl_event_loop *event_loop = wl_display_get_event_loop(display);
+
+ state->drm_event = wl_event_loop_add_fd(event_loop, state->fd,
+ WL_EVENT_READABLE, wlr_drm_event, NULL);
+ if (!state->drm_event) {
+ wlr_log(L_ERROR, "Failed to create DRM event source");
+ goto error_fd;
+ }
+
+ // TODO: what is the difference between the per-output renderer and this
+ // one?
+ if (!wlr_drm_renderer_init(&state->renderer, state->fd)) {
+ wlr_log(L_ERROR, "Failed to initialize renderer");
+ goto error_event;
+ }
+
+ return backend;
+
+error_event:
+ wl_event_source_remove(state->drm_event);
+error_fd:
+ wlr_session_close_file(state->session, state->fd);
+error_udev:
+ wlr_udev_free(&state->udev);
+error_list:
+ list_free(state->outputs);
+error_backend:
+ free(state);
+ free(backend);
+ return NULL;
+}
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
new file mode 100644
index 00000000..7cbd3e4a
--- /dev/null
+++ b/backend/drm/drm.c
@@ -0,0 +1,418 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <drm_mode.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <gbm.h>
+#include <GLES3/gl3.h>
+#include <wayland-server.h>
+
+#include "wayland.h"
+#include "backend.h"
+#include "backend/drm/backend.h"
+#include "backend/drm/drm.h"
+#include "common/log.h"
+
+static const char *conn_name[] = {
+ [DRM_MODE_CONNECTOR_Unknown] = "Unknown",
+ [DRM_MODE_CONNECTOR_VGA] = "VGA",
+ [DRM_MODE_CONNECTOR_DVII] = "DVI-I",
+ [DRM_MODE_CONNECTOR_DVID] = "DVI-D",
+ [DRM_MODE_CONNECTOR_DVIA] = "DVI-A",
+ [DRM_MODE_CONNECTOR_Composite] = "Composite",
+ [DRM_MODE_CONNECTOR_SVIDEO] = "SVIDEO",
+ [DRM_MODE_CONNECTOR_LVDS] = "LVDS",
+ [DRM_MODE_CONNECTOR_Component] = "Component",
+ [DRM_MODE_CONNECTOR_9PinDIN] = "DIN",
+ [DRM_MODE_CONNECTOR_DisplayPort] = "DP",
+ [DRM_MODE_CONNECTOR_HDMIA] = "HDMI-A",
+ [DRM_MODE_CONNECTOR_HDMIB] = "HDMI-B",
+ [DRM_MODE_CONNECTOR_TV] = "TV",
+ [DRM_MODE_CONNECTOR_eDP] = "eDP",
+ [DRM_MODE_CONNECTOR_VIRTUAL] = "Virtual",
+ [DRM_MODE_CONNECTOR_DSI] = "DSI",
+};
+
+bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, int fd) {
+ renderer->gbm = gbm_create_device(fd);
+ if (!renderer->gbm) {
+ wlr_log(L_ERROR, "Failed to create GBM device: %s", strerror(errno));
+ return false;
+ }
+
+ if (!wlr_egl_init(&renderer->egl, EGL_PLATFORM_GBM_MESA, renderer->gbm)) {
+ gbm_device_destroy(renderer->gbm);
+ return false;
+ }
+
+ renderer->fd = fd;
+ return true;
+}
+
+void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer) {
+ if (!renderer) {
+ return;
+ }
+ wlr_egl_free(&renderer->egl);
+ gbm_device_destroy(renderer->gbm);
+}
+
+static void free_fb(struct gbm_bo *bo, void *data) {
+ uint32_t *id = data;
+
+ if (id && *id) {
+ drmModeRmFB(gbm_bo_get_fd(bo), *id);
+ }
+
+ free(id);
+}
+
+static uint32_t get_fb_for_bo(int fd, struct gbm_bo *bo) {
+ uint32_t *id = gbm_bo_get_user_data(bo);
+
+ if (id) {
+ return *id;
+ }
+
+ id = calloc(1, sizeof *id);
+ if (!id) {
+ wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
+ return 0;
+ }
+
+ drmModeAddFB(fd, gbm_bo_get_width(bo), gbm_bo_get_height(bo), 24, 32,
+ gbm_bo_get_stride(bo), gbm_bo_get_handle(bo).u32, id);
+
+ gbm_bo_set_user_data(bo, id, free_fb);
+
+ return *id;
+}
+
+void wlr_drm_output_begin(struct wlr_output *output) {
+ struct wlr_output_state *_output = output->state;
+ struct wlr_drm_renderer *renderer = _output->renderer;
+ eglMakeCurrent(renderer->egl.display, _output->egl,
+ _output->egl, renderer->egl.context);
+}
+
+void wlr_drm_output_end(struct wlr_output *output) {
+ struct wlr_output_state *_output = output->state;
+ struct wlr_drm_renderer *renderer = _output->renderer;
+
+ eglSwapBuffers(renderer->egl.display, _output->egl);
+ struct gbm_bo *bo = gbm_surface_lock_front_buffer(_output->gbm);
+ uint32_t fb_id = get_fb_for_bo(renderer->fd, bo);
+ drmModePageFlip(renderer->fd, _output->crtc, fb_id, DRM_MODE_PAGE_FLIP_EVENT, _output);
+ gbm_surface_release_buffer(_output->gbm, bo);
+ _output->pageflip_pending = true;
+}
+
+static bool display_init_renderer(struct wlr_drm_renderer *renderer,
+ struct wlr_output_state *output) {
+ struct wlr_output_mode *mode = output->wlr_output->current_mode;
+ output->renderer = renderer;
+ output->gbm = gbm_surface_create(renderer->gbm, mode->width,
+ mode->height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
+ if (!output->gbm) {
+ wlr_log(L_ERROR, "Failed to create GBM surface for %s: %s", output->name,
+ strerror(errno));
+ return false;
+ }
+
+ output->egl = wlr_egl_create_surface(&renderer->egl, output->gbm);
+ if (output->egl == EGL_NO_SURFACE) {
+ wlr_log(L_ERROR, "Failed to create EGL surface for %s", output->name);
+ return false;
+ }
+
+ // Render black frame
+ eglMakeCurrent(renderer->egl.display, output->egl, output->egl, renderer->egl.context);
+
+ glViewport(0, 0, output->width, output->height);
+ glClearColor(0.0, 0.0, 0.0, 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ eglSwapBuffers(renderer->egl.display, output->egl);
+
+ struct gbm_bo *bo = gbm_surface_lock_front_buffer(output->gbm);
+ uint32_t fb_id = get_fb_for_bo(renderer->fd, bo);
+
+ drmModeSetCrtc(renderer->fd, output->crtc, fb_id, 0, 0,
+ &output->connector, 1, &mode->state->mode);
+ drmModePageFlip(renderer->fd, output->crtc, fb_id,
+ DRM_MODE_PAGE_FLIP_EVENT, output);
+
+ gbm_surface_release_buffer(output->gbm, bo);
+ return true;
+}
+
+static int find_id(const void *item, const void *cmp_to) {
+ const struct wlr_output_state *output = item;
+ const uint32_t *id = cmp_to;
+
+ if (output->connector < *id) {
+ return -1;
+ } else if (output->connector > *id) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
+ struct wlr_output_mode *mode) {
+ struct wlr_backend_state *state =
+ wl_container_of(output->renderer, state, renderer);
+
+ wlr_log(L_INFO, "Modesetting '%s' with '%ux%u@%u mHz'", output->name,
+ mode->width, mode->height, mode->refresh);
+
+ drmModeConnector *conn = drmModeGetConnector(state->fd, output->connector);
+ if (!conn) {
+ wlr_log(L_ERROR, "Failed to get DRM connector");
+ goto error;
+ }
+
+ if (conn->connection != DRM_MODE_CONNECTED || conn->count_modes == 0) {
+ wlr_log(L_ERROR, "%s is not connected", output->name);
+ goto error;
+ }
+
+ drmModeRes *res = drmModeGetResources(state->fd);
+ if (!res) {
+ wlr_log(L_ERROR, "Failed to get DRM resources");
+ goto error;
+ }
+
+ bool success = false;
+ for (int i = 0; !success && i < conn->count_encoders; ++i) {
+ drmModeEncoder *enc = drmModeGetEncoder(state->fd, conn->encoders[i]);
+ if (!enc) {
+ continue;
+ }
+
+ for (int j = 0; j < res->count_crtcs; ++j) {
+ if ((enc->possible_crtcs & (1 << j)) == 0) {
+ continue;
+ }
+
+ if ((state->taken_crtcs & (1 << j)) == 0) {
+ state->taken_crtcs |= 1 << j;
+ output->crtc = res->crtcs[j];
+ success = true;
+ break;
+ }
+ }
+ drmModeFreeEncoder(enc);
+ }
+
+ drmModeFreeResources(res);
+
+ if (!success) {
+ wlr_log(L_ERROR, "Failed to find CRTC for %s", output->name);
+ goto error;
+ }
+
+ output->state = DRM_OUTPUT_CONNECTED;
+ output->width = mode->width;
+ output->height = mode->height;
+ output->wlr_output->current_mode = mode;
+
+ if (!display_init_renderer(&state->renderer, output)) {
+ wlr_log(L_ERROR, "Failed to initalise renderer for %s", output->name);
+ goto error;
+ }
+
+ drmModeFreeConnector(conn);
+ return true;
+
+error:
+ wlr_drm_output_cleanup(output, false);
+ drmModeFreeConnector(conn);
+ return false;
+}
+
+static void wlr_drm_output_destroy(struct wlr_output_state *output) {
+ wlr_drm_output_cleanup(output, true);
+ wlr_drm_renderer_free(output->renderer);
+ free(output);
+}
+
+static struct wlr_output_impl output_impl = {
+ .set_mode = wlr_drm_output_set_mode,
+ .destroy = wlr_drm_output_destroy,
+};
+
+void wlr_drm_scan_connectors(struct wlr_backend_state *state) {
+ wlr_log(L_INFO, "Scanning DRM connectors");
+
+ drmModeRes *res = drmModeGetResources(state->fd);
+ if (!res) {
+ wlr_log(L_ERROR, "Failed to get DRM resources");
+ return;
+ }
+
+ for (int i = 0; i < res->count_connectors; ++i) {
+ uint32_t id = res->connectors[i];
+
+ drmModeConnector *conn = drmModeGetConnector(state->fd, id);
+ if (!conn) {
+ wlr_log(L_ERROR, "Failed to get DRM connector");
+ continue;
+ }
+
+ struct wlr_output_state *output;
+ struct wlr_output *wlr_output;
+ int index = list_seq_find(state->outputs, find_id, &id);
+
+ if (index == -1) {
+ output = calloc(1, sizeof(struct wlr_output_state));
+ if (!state) {
+ drmModeFreeConnector(conn);
+ wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
+ return;
+ }
+ wlr_output = output->wlr_output = wlr_output_create(&output_impl, output);
+ if (!wlr_output) {
+ drmModeFreeConnector(conn);
+ wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
+ return;
+ }
+
+ output->renderer = &state->renderer;
+ output->state = DRM_OUTPUT_DISCONNECTED;
+ output->connector = id;
+ // TODO: Populate more wlr_output fields
+ // TODO: Move this to wlr_output->name
+ snprintf(output->name, sizeof(output->name), "%s-%"PRIu32,
+ conn_name[conn->connector_type],
+ conn->connector_type_id);
+
+ drmModeEncoder *curr_enc = drmModeGetEncoder(state->fd, conn->encoder_id);
+ if (curr_enc) {
+ output->old_crtc = drmModeGetCrtc(state->fd, curr_enc->crtc_id);
+ free(curr_enc);
+ }
+
+ list_add(state->outputs, output);
+ wlr_log(L_INFO, "Found display '%s'", output->name);
+ } else {
+ output = state->outputs->items[index];
+ wlr_output = output->wlr_output;
+ }
+
+ // TODO: move state into wlr_output
+ if (output->state == DRM_OUTPUT_DISCONNECTED &&
+ conn->connection == DRM_MODE_CONNECTED) {
+
+ wlr_log(L_INFO, "'%s' connected", output->name);
+ wlr_log(L_INFO, "Detected modes:");
+
+ for (int i = 0; i < conn->count_modes; ++i) {
+ struct wlr_output_mode_state *_state = calloc(1,
+ sizeof(struct wlr_output_mode_state));
+ _state->mode = conn->modes[i];
+ struct wlr_output_mode *mode = calloc(1,
+ sizeof(struct wlr_output_mode));
+ mode->width = _state->mode.hdisplay;
+ // TODO: Calculate more accurate refresh rate
+ // TODO: Check that this refresh rate is mHz
+ mode->height = _state->mode.vdisplay;
+ mode->state = _state;
+
+ wlr_log(L_INFO, " %"PRIu16"@%"PRIu16"@%"PRIu32,
+ _state->mode.hdisplay, _state->mode.vdisplay,
+ _state->mode.vrefresh);
+
+ list_add(wlr_output->modes, mode);
+ }
+
+ output->state = DRM_OUTPUT_NEEDS_MODESET;
+ wlr_log(L_INFO, "Sending modesetting signal for '%s'", output->name);
+ wl_signal_emit(&state->backend->events.output_add, wlr_output);
+ } else if (output->state == DRM_OUTPUT_CONNECTED &&
+ conn->connection != DRM_MODE_CONNECTED) {
+
+ wlr_log(L_INFO, "'%s' disconnected", output->name);
+ // TODO: Destroy
+ wlr_drm_output_cleanup(output, false);
+ }
+
+ drmModeFreeConnector(conn);
+ }
+
+ drmModeFreeResources(res);
+}
+
+static void page_flip_handler(int fd, unsigned seq,
+ unsigned tv_sec, unsigned tv_usec, void *user) {
+ struct wlr_output_state *output = user;
+ struct wlr_backend_state *state =
+ wl_container_of(output->renderer, state, renderer);
+
+ output->pageflip_pending = false;
+ if (output->state == DRM_OUTPUT_CONNECTED) {
+ wl_signal_emit(&output->wlr_output->events.frame, output->wlr_output);
+ }
+}
+
+int wlr_drm_event(int fd, uint32_t mask, void *data) {
+ drmEventContext event = {
+ .version = DRM_EVENT_CONTEXT_VERSION,
+ .page_flip_handler = page_flip_handler,
+ };
+
+ drmHandleEvent(fd, &event);
+ return 1;
+}
+
+static void restore_output(struct wlr_output_state *output, int fd) {
+ // Wait for any pending pageflips to finish
+ while (output->pageflip_pending) {
+ wlr_drm_event(fd, 0, NULL);
+ }
+
+ drmModeCrtc *crtc = output->old_crtc;
+ if (!crtc) {
+ return;
+ }
+
+ drmModeSetCrtc(fd, crtc->crtc_id, crtc->buffer_id, crtc->x, crtc->y,
+ &output->connector, 1, &crtc->mode);
+ drmModeFreeCrtc(crtc);
+}
+
+void wlr_drm_output_cleanup(struct wlr_output_state *output, bool restore) {
+ if (!output) {
+ return;
+ }
+
+ struct wlr_drm_renderer *renderer = output->renderer;
+ struct wlr_backend_state *state = wl_container_of(renderer, state, renderer);
+
+ switch (output->state) {
+ case DRM_OUTPUT_CONNECTED:
+ eglDestroySurface(renderer->egl.display, output->egl);
+ gbm_surface_destroy(output->gbm);
+ output->egl = EGL_NO_SURFACE;
+ output->gbm = NULL;
+ /* Fallthrough */
+ case DRM_OUTPUT_NEEDS_MODESET:
+ output->state = DRM_OUTPUT_DISCONNECTED;
+ if (restore) {
+ restore_output(output, renderer->fd);
+ }
+ wlr_log(L_INFO, "Emmiting destruction signal for '%s'", output->name);
+ wl_signal_emit(&state->backend->events.output_remove, output->wlr_output);
+ break;
+ case DRM_OUTPUT_DISCONNECTED:
+ break;
+ }
+ // TODO: free wlr_output
+}
diff --git a/backend/drm/udev.c b/backend/drm/udev.c
new file mode 100644
index 00000000..e5470157
--- /dev/null
+++ b/backend/drm/udev.c
@@ -0,0 +1,214 @@
+#define _POSIX_C_SOURCE 200809L
+
+#include <libudev.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <wayland-server.h>
+
+#include <wlr/session.h>
+
+#include "backend.h"
+#include "backend/drm/backend.h"
+#include "backend/drm/udev.h"
+#include "backend/drm/drm.h"
+#include "common/log.h"
+
+/* Tests if 'path' is KMS compatible by trying to open it.
+ * It leaves the open device in *fd_out it it succeeds.
+ */
+static bool device_is_kms(struct wlr_session *restrict session,
+ const char *restrict path, int *restrict fd_out) {
+
+ int fd;
+
+ if (!path) {
+ return false;
+ }
+
+ fd = wlr_session_open_file(session, path);
+ if (fd < 0) {
+ return false;
+ }
+
+ drmModeRes *res = drmModeGetResources(fd);
+ if (!res) {
+ goto out_fd;
+ }
+
+ if (res->count_crtcs <= 0 || res->count_connectors <= 0 ||
+ res->count_encoders <= 0) {
+
+ goto out_res;
+ }
+
+ if (*fd_out >= 0) {
+ wlr_session_close_file(session, *fd_out);
+ }
+
+ *fd_out = fd;
+
+ drmModeFreeResources(res);
+ return true;
+
+out_res:
+ drmModeFreeResources(res);
+out_fd:
+ wlr_session_close_file(session, fd);
+ return false;
+}
+
+/* Tries to find the primary GPU by checking for the "boot_vga" attribute.
+ * If it's not found, it returns the first valid GPU it finds.
+ */
+int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session) {
+ struct udev_enumerate *en = udev_enumerate_new(udev->udev);
+ if (!en) {
+ wlr_log(L_ERROR, "Failed to create udev enumeration");
+ return -1;
+ }
+
+ udev_enumerate_add_match_subsystem(en, "drm");
+ udev_enumerate_add_match_sysname(en, "card[0-9]*");
+ udev_enumerate_scan_devices(en);
+
+ struct udev_list_entry *entry;
+ int fd = -1;
+ char *drm_path = NULL;
+
+ udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(en)) {
+ bool is_boot_vga = false;
+
+ const char *path = udev_list_entry_get_name(entry);
+ struct udev_device *dev = udev_device_new_from_syspath(udev->udev, path);
+ if (!dev) {
+ continue;
+ }
+
+ /*
+ const char *seat = udev_device_get_property_value(dev, "ID_SEAT");
+ if (!seat)
+ seat = "seat0";
+ if (strcmp(session->seat, seat) != 0) {
+ udev_device_unref(dev);
+ continue;
+ }
+ */
+
+ // This is owned by 'dev', so we don't need to free it
+ struct udev_device *pci =
+ udev_device_get_parent_with_subsystem_devtype(dev, "pci", NULL);
+
+ if (pci) {
+ const char *id = udev_device_get_sysattr_value(pci, "boot_vga");
+ if (id && strcmp(id, "1") == 0) {
+ is_boot_vga = true;
+ }
+ }
+
+ // We already have a valid GPU
+ if (!is_boot_vga && fd >= 0) {
+ udev_device_unref(dev);
+ continue;
+ }
+
+ path = udev_device_get_devnode(dev);
+ if (!device_is_kms(session, path, &fd)) {
+ udev_device_unref(dev);
+ continue;
+ }
+
+ free(drm_path);
+ drm_path = strdup(path);
+
+ udev_device_unref(dev);
+
+ // We've found the primary GPU
+ if (is_boot_vga) {
+ break;
+ }
+ }
+
+ udev_enumerate_unref(en);
+
+ udev->drm_path = drm_path;
+ return fd;
+}
+
+static int udev_event(int fd, uint32_t mask, void *data) {
+ struct wlr_udev *udev = data;
+ struct wlr_backend_state *state = wl_container_of(udev, state, udev);
+
+ struct udev_device *dev = udev_monitor_receive_device(udev->mon);
+ if (!dev) {
+ return 1;
+ }
+
+ const char *path = udev_device_get_devnode(dev);
+ if (!path || strcmp(path, udev->drm_path) != 0) {
+ goto out;
+ }
+
+ const char *action = udev_device_get_action(dev);
+ if (!action || strcmp(action, "change") != 0) {
+ goto out;
+ }
+
+ wlr_drm_scan_connectors(state);
+
+out:
+ udev_device_unref(dev);
+ return 1;
+}
+
+bool wlr_udev_init(struct wl_display *display, struct wlr_udev *udev) {
+ udev->udev = udev_new();
+ if (!udev->udev) {
+ wlr_log(L_ERROR, "Failed to create udev context");
+ return false;
+ }
+
+ udev->mon = udev_monitor_new_from_netlink(udev->udev, "udev");
+ if (!udev->mon) {
+ wlr_log(L_ERROR, "Failed to create udev monitor");
+ goto error_udev;
+ }
+
+ udev_monitor_filter_add_match_subsystem_devtype(udev->mon, "drm", NULL);
+ udev_monitor_enable_receiving(udev->mon);
+
+ struct wl_event_loop *event_loop = wl_display_get_event_loop(display);
+ int fd = udev_monitor_get_fd(udev->mon);
+
+ udev->event = wl_event_loop_add_fd(event_loop, fd, WL_EVENT_READABLE,
+ udev_event, udev);
+ if (!udev->event) {
+ wlr_log(L_ERROR, "Failed to create udev event source");
+ goto error_mon;
+ }
+
+ udev->drm_path = NULL;
+
+ return true;
+
+error_mon:
+ udev_monitor_unref(udev->mon);
+error_udev:
+ udev_unref(udev->udev);
+ return false;
+}
+
+void wlr_udev_free(struct wlr_udev *udev) {
+ if (!udev) {
+ return;
+ }
+
+ wl_event_source_remove(udev->event);
+
+ udev_monitor_unref(udev->mon);
+ udev_unref(udev->udev);
+ free(udev->drm_path);
+}
diff --git a/backend/egl.c b/backend/egl.c
new file mode 100644
index 00000000..2aac25b7
--- /dev/null
+++ b/backend/egl.c
@@ -0,0 +1,178 @@
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES3/gl3.h>
+#include <gbm.h> // GBM_FORMAT_XRGB8888
+
+#include "backend/egl.h"
+#include "common/log.h"
+
+static const char *egl_error(void) {
+ switch (eglGetError()) {
+ case EGL_SUCCESS:
+ return "Success";
+ case EGL_NOT_INITIALIZED:
+ return "Not initialized";
+ case EGL_BAD_ACCESS:
+ return "Bad access";
+ case EGL_BAD_ALLOC:
+ return "Bad alloc";
+ case EGL_BAD_ATTRIBUTE:
+ return "Bad attribute";
+ case EGL_BAD_CONTEXT:
+ return "Bad Context";
+ case EGL_BAD_CONFIG:
+ return "Bad Config";
+ case EGL_BAD_CURRENT_SURFACE:
+ return "Bad current surface";
+ case EGL_BAD_DISPLAY:
+ return "Bad display";
+ case EGL_BAD_SURFACE:
+ return "Bad surface";
+ case EGL_BAD_MATCH:
+ return "Bad match";
+ case EGL_BAD_PARAMETER:
+ return "Bad parameter";
+ case EGL_BAD_NATIVE_PIXMAP:
+ return "Bad native pixmap";
+ case EGL_BAD_NATIVE_WINDOW:
+ return "Bad native window";
+ case EGL_CONTEXT_LOST:
+ return "Context lost";
+ default:
+ return "Unknown";
+ }
+}
+
+// EGL extensions
+PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display;
+PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC create_platform_window_surface;
+
+static bool egl_exts() {
+ get_platform_display = (PFNEGLGETPLATFORMDISPLAYEXTPROC)
+ eglGetProcAddress("eglGetPlatformDisplayEXT");
+
+ if (!get_platform_display) {
+ wlr_log(L_ERROR, "Failed to load EGL extension 'eglGetPlatformDisplayEXT'");
+ return false;
+ }
+
+ create_platform_window_surface = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)
+ eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
+
+ if (!get_platform_display) {
+ wlr_log(L_ERROR,
+ "Failed to load EGL extension 'eglCreatePlatformWindowSurfaceEXT'");
+ return false;
+ }
+
+ return true;
+}
+
+static bool egl_get_config(EGLDisplay disp, EGLConfig *out) {
+ EGLint count = 0, matched = 0, ret;
+
+ ret = eglGetConfigs(disp, NULL, 0, &count);
+ if (ret == EGL_FALSE || count == 0) {
+ return false;
+ }
+
+ EGLConfig configs[count];
+
+ ret = eglChooseConfig(disp, NULL, configs, count, &matched);
+ if (ret == EGL_FALSE) {
+ return false;
+ }
+
+ for (int i = 0; i < matched; ++i) {
+ EGLint gbm_format;
+
+ if (!eglGetConfigAttrib(disp,
+ configs[i],
+ EGL_NATIVE_VISUAL_ID,
+ &gbm_format)) {
+ continue;
+ }
+
+ // XXX: Is GBM_FORMAT_XRGB8888 what we want?
+ // I don't know if this works for wl_displays.
+ if (gbm_format == GBM_FORMAT_XRGB8888) {
+ *out = configs[i];
+ return true;
+ }
+ }
+
+ return false;
+}
+
+
+bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *display) {
+ if (!egl_exts()) {
+ return false;
+ }
+
+ if (eglBindAPI(EGL_OPENGL_ES_API) == EGL_FALSE) {
+ wlr_log(L_ERROR, "Failed to bind to the OpenGL ES API: %s", egl_error());
+ goto error;
+ }
+
+ egl->display = get_platform_display(platform, display, NULL);
+ if (egl->display == EGL_NO_DISPLAY) {
+ wlr_log(L_ERROR, "Failed to create EGL display: %s", egl_error());
+ goto error;
+ }
+
+ EGLint major, minor;
+ if (eglInitialize(egl->display, &major, &minor) == EGL_FALSE) {
+ wlr_log(L_ERROR, "Failed to initialize EGL: %s", egl_error());
+ goto error;
+ }
+
+ if (!egl_get_config(egl->display, &egl->config)) {
+ wlr_log(L_ERROR, "Failed to get EGL config");
+ goto error;
+ }
+
+ static const EGLint attribs[] = {EGL_CONTEXT_CLIENT_VERSION, 3, EGL_NONE};
+
+ egl->context = eglCreateContext(egl->display, egl->config,
+ EGL_NO_CONTEXT, attribs);
+
+ if (egl->context == EGL_NO_CONTEXT) {
+ wlr_log(L_ERROR, "Failed to create EGL context: %s", egl_error());
+ goto error;
+ }
+
+ eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl->context);
+ wlr_log(L_INFO, "Using EGL %d.%d", (int)major, (int)minor);
+ wlr_log(L_INFO, "Supported EGL extensions: %s", eglQueryString(egl->display,
+ EGL_EXTENSIONS));
+ wlr_log(L_INFO, "Using %s", glGetString(GL_VERSION));
+ wlr_log(L_INFO, "Supported OpenGL ES extensions: %s", glGetString(GL_EXTENSIONS));
+
+ return true;
+
+error:
+ eglTerminate(egl->display);
+ eglReleaseThread();
+ eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+
+ return false;
+}
+
+void wlr_egl_free(struct wlr_egl *egl) {
+ eglDestroyContext(egl->display, egl->context);
+ eglTerminate(egl->display);
+ eglReleaseThread();
+ eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+}
+
+EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window) {
+ EGLSurface surf = create_platform_window_surface(egl->display, egl->config,
+ window, NULL);
+ if (surf == EGL_NO_SURFACE) {
+ wlr_log(L_ERROR, "Failed to create EGL surface: %s", egl_error());
+ return EGL_NO_SURFACE;
+ }
+
+ return surf;
+}
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index 73768393..f619b97f 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -1,7 +1,12 @@
+include_directories(
+ ${DRM_INCLUDE_DIRS}
+)
+
add_executable(example
main.c
)
target_link_libraries(example
wlr-backend
+ wlr-session
)
diff --git a/example/main.c b/example/main.c
index 4240b9e3..2c168d98 100644
--- a/example/main.c
+++ b/example/main.c
@@ -1,19 +1,133 @@
-#define _POSIX_C_SOURCE 200112L
+#define _POSIX_C_SOURCE 199309L
+#include <stdio.h>
#include <stdlib.h>
-#include <wlr/backend.h>
-#include <wlr/backend/wayland.h>
+#include <time.h>
#include <wayland-server.h>
+#include <GLES3/gl3.h>
+#include <wlr/backend/drm.h>
+#include <wlr/session.h>
+#include <wlr/common/list.h>
-int main(int argc, char **argv) {
- // TODO: Move this stuff to a wlr backend selector function
- char *_wl_display = getenv("WAYLAND_DISPLAY");
- if (_wl_display) {
- unsetenv("WAYLAND_DISPLAY");
- setenv("_WAYLAND_DISPLAY", _wl_display, 1);
+struct state {
+ float color[3];
+ int dec;
+ struct timespec last_frame;
+ struct wl_listener output_add;
+ struct wl_listener output_remove;
+ list_t *outputs;
+};
+
+struct output_state {
+ struct wlr_output *output;
+ struct state *state;
+ struct wl_listener frame;
+};
+
+void output_frame(struct wl_listener *listener, void *data) {
+ struct wlr_output *output = data;
+ struct output_state *ostate = wl_container_of(
+ listener, ostate, frame);
+ struct state *s = ostate->state;
+
+ struct timespec now;
+ clock_gettime(CLOCK_MONOTONIC, &now);
+
+ long ms = (now.tv_sec - s->last_frame.tv_sec) * 1000 +
+ (now.tv_nsec - s->last_frame.tv_nsec) / 1000000;
+ int inc = (s->dec + 1) % 3;
+
+ s->color[inc] += ms / 2000.0f;
+ s->color[s->dec] -= ms / 2000.0f;
+
+ if (s->color[s->dec] < 0.0f) {
+ s->color[inc] = 1.0f;
+ s->color[s->dec] = 0.0f;
+
+ s->dec = inc;
+ }
+
+ s->last_frame = now;
+
+ wlr_drm_output_begin(output);
+
+ glClearColor(s->color[0], s->color[1], s->color[2], 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ wlr_drm_output_end(output);
+}
+
+void output_add(struct wl_listener *listener, void *data) {
+ struct wlr_output *output = data;
+ struct state *state = wl_container_of(listener, state, output_add);
+ fprintf(stderr, "Output '%s' added\n", output->name);
+ wlr_output_set_mode(output, output->modes->items[0]);
+ struct output_state *ostate = calloc(1, sizeof(struct output_state));
+ ostate->output = output;
+ ostate->state = state;
+ ostate->frame.notify = output_frame;
+ wl_list_init(&ostate->frame.link);
+ wl_signal_add(&output->events.frame, &ostate->frame);
+ list_add(state->outputs, ostate);
+}
+
+void output_remove(struct wl_listener *listener, void *data) {
+ struct wlr_output *output = data;
+ fprintf(stderr, "Output '%s' removed\n", output->name);
+ // TODO: remove signal from state->output_frame
+}
+
+int timer_done(void *data) {
+ *(bool *)data = true;
+ return 1;
+}
+
+int main() {
+ if (getenv("DISPLAY")) {
+ fprintf(stderr, "Detected that X is running. Run this in its own virtual terminal.\n");
+ return 1;
+ } else if (getenv("WAYLAND_DISPLAY")) {
+ fprintf(stderr, "Detected that Wayland is running. Run this in its own virtual terminal.\n");
+ return 1;
+ }
+
+ struct state state = {
+ .color = { 1.0, 0.0, 0.0 },
+ .dec = 0,
+ .output_add = { .notify = output_add },
+ .output_remove = { .notify = output_remove },
+ .outputs = list_create(),
+ };
+
+ wl_list_init(&state.output_add.link);
+ wl_list_init(&state.output_remove.link);
+ clock_gettime(CLOCK_MONOTONIC, &state.last_frame);
+
+ struct wl_display *display = wl_display_create();
+ struct wl_event_loop *event_loop = wl_display_get_event_loop(display);
+
+ struct wlr_session *session = wlr_session_start();
+ if (!session) {
+ return 1;
+ }
+
+ struct wlr_backend *wlr = wlr_drm_backend_create(display, session);
+ wl_signal_add(&wlr->events.output_add, &state.output_add);
+ wl_signal_add(&wlr->events.output_remove, &state.output_remove);
+ if (!wlr || !wlr_backend_init(wlr)) {
+ return 1;
+ }
+
+ bool done = false;
+ struct wl_event_source *timer = wl_event_loop_add_timer(event_loop,
+ timer_done, &done);
+
+ wl_event_source_timer_update(timer, 5000);
+
+ while (!done) {
+ wl_event_loop_dispatch(event_loop, 0);
}
- struct wl_display *wl_display = wl_display_create();
- struct wlr_wl_backend *backend = wlr_wl_backend_init(wl_display, 1);
- wlr_wl_backend_free(backend);
- wl_display_destroy(wl_display);
- return 0;
+
+ wl_event_source_remove(timer);
+ wlr_backend_destroy(wlr);
+ wl_display_destroy(display);
}
diff --git a/include/backend.h b/include/backend.h
new file mode 100644
index 00000000..d42c6f17
--- /dev/null
+++ b/include/backend.h
@@ -0,0 +1,17 @@
+#ifndef _WLR_BACKEND_INTERNAL_H
+#define _WLR_BACKEND_INTERNAL_H
+
+#include <stdbool.h>
+#include <wlr/backend.h>
+
+struct wlr_backend_state;
+
+struct wlr_backend_impl {
+ bool (*init)(struct wlr_backend_state *state);
+ void (*destroy)(struct wlr_backend_state *state);
+};
+
+struct wlr_backend *wlr_backend_create(const struct wlr_backend_impl *impl,
+ struct wlr_backend_state *state);
+
+#endif
diff --git a/include/backend/drm/backend.h b/include/backend/drm/backend.h
new file mode 100644
index 00000000..0c725ccb
--- /dev/null
+++ b/include/backend/drm/backend.h
@@ -0,0 +1,34 @@
+#ifndef DRM_BACKEND_H
+#define DRM_BACKEND_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <EGL/egl.h>
+#include <gbm.h>
+#include <libudev.h>
+#include <wayland-server.h>
+
+#include <wlr/session.h>
+#include <wlr/common/list.h>
+#include <wlr/backend/drm.h>
+
+#include "backend.h"
+#include "udev.h"
+#include "event.h"
+#include "drm.h"
+
+struct wlr_backend_state {
+ int fd;
+
+ struct wlr_backend *backend;
+ struct wl_event_source *drm_event;
+
+ uint32_t taken_crtcs;
+ list_t *outputs;
+
+ struct wlr_drm_renderer renderer;
+ struct wlr_session *session;
+ struct wlr_udev udev;
+};
+
+#endif
diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h
new file mode 100644
index 00000000..4b42aa68
--- /dev/null
+++ b/include/backend/drm/drm.h
@@ -0,0 +1,58 @@
+#ifndef DRM_H
+#define DRM_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <xf86drmMode.h>
+#include <EGL/egl.h>
+#include <gbm.h>
+
+#include "backend/egl.h"
+#include "backend.h"
+
+struct wlr_drm_renderer {
+ int fd;
+ struct gbm_device *gbm;
+ struct wlr_egl egl;
+};
+
+bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, int fd);
+void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer);
+
+enum wlr_drm_output_state {
+ DRM_OUTPUT_DISCONNECTED,
+ DRM_OUTPUT_NEEDS_MODESET,
+ DRM_OUTPUT_CONNECTED,
+};
+
+struct wlr_output_mode_state {
+ struct wlr_wl_output_mode *wlr_mode;
+ drmModeModeInfo mode;
+};
+
+struct wlr_output_state {
+ struct wlr_output *wlr_output;
+ enum wlr_drm_output_state state;
+ uint32_t connector;
+ char name[16];
+
+ uint32_t width;
+ uint32_t height;
+
+ uint32_t crtc;
+ drmModeCrtc *old_crtc;
+
+ struct wlr_drm_renderer *renderer;
+ struct gbm_surface *gbm;
+ EGLSurface *egl;
+
+ bool pageflip_pending;
+ bool cleanup;
+};
+
+void wlr_drm_output_cleanup(struct wlr_output_state *output, bool restore);
+
+void wlr_drm_scan_connectors(struct wlr_backend_state *state);
+int wlr_drm_event(int fd, uint32_t mask, void *data);
+
+#endif
diff --git a/include/backend/drm/udev.h b/include/backend/drm/udev.h
new file mode 100644
index 00000000..99c2c403
--- /dev/null
+++ b/include/backend/drm/udev.h
@@ -0,0 +1,24 @@
+#ifndef UDEV_H
+#define UDEV_H
+
+#include <libudev.h>
+
+#include <wlr/session.h>
+#include <wayland-server.h>
+
+struct wlr_udev {
+ struct udev *udev;
+ struct udev_monitor *mon;
+ char *drm_path;
+
+ struct wl_event_source *event;
+};
+
+struct wlr_drm_backend;
+bool wlr_udev_init(struct wl_display *display, struct wlr_udev *udev);
+void wlr_udev_free(struct wlr_udev *udev);
+int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session);
+
+void wlr_udev_event(struct wlr_drm_backend *backend);
+
+#endif
diff --git a/include/backend/egl.h b/include/backend/egl.h
new file mode 100644
index 00000000..8cef36b7
--- /dev/null
+++ b/include/backend/egl.h
@@ -0,0 +1,17 @@
+#ifndef WLR_BACKEND_EGL_H
+#define WLR_BACKEND_EGL_H
+
+#include <EGL/egl.h>
+#include <stdbool.h>
+
+struct wlr_egl {
+ EGLDisplay display;
+ EGLConfig config;
+ EGLContext context;
+};
+
+bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *display);
+void wlr_egl_free(struct wlr_egl *egl);
+EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window);
+
+#endif
diff --git a/include/session/interface.h b/include/session/interface.h
new file mode 100644
index 00000000..a815718f
--- /dev/null
+++ b/include/session/interface.h
@@ -0,0 +1,21 @@
+#ifndef WLR_SESSION_INTERFACE_H
+#define WLR_SESSION_INTERFACE_H
+
+struct wlr_session;
+
+struct session_interface {
+ struct wlr_session *(*start)(void);
+ void (*finish)(struct wlr_session *session);
+ int (*open)(struct wlr_session *restrict session,
+ const char *restrict path);
+ void (*close)(struct wlr_session *session, int fd);
+};
+
+struct wlr_session {
+ struct session_interface iface;
+};
+
+extern const struct session_interface session_logind_iface;
+extern const struct session_interface session_direct_iface;
+
+#endif
diff --git a/include/wayland.h b/include/wayland.h
new file mode 100644
index 00000000..68817936
--- /dev/null
+++ b/include/wayland.h
@@ -0,0 +1,18 @@
+#ifndef _WLR_WAYLAND_INTERNAL_H
+#define _WLR_WAYLAND_INTERNAL_H
+
+#include <wayland-server.h>
+#include <wlr/wayland.h>
+#include <stdbool.h>
+
+struct wlr_output_impl {
+ bool (*set_mode)(struct wlr_output_state *state, struct wlr_output_mode *mode);
+ void (*destroy)(struct wlr_output_state *state);
+};
+
+struct wlr_output *wlr_output_create(struct wlr_output_impl *impl,
+ struct wlr_output_state *state);
+
+void wlr_output_free(struct wlr_output *output);
+
+#endif
diff --git a/include/wlr/backend.h b/include/wlr/backend.h
index 527efa05..b424c29f 100644
--- a/include/wlr/backend.h
+++ b/include/wlr/backend.h
@@ -1,7 +1,29 @@
#ifndef _WLR_BACKEND_H
#define _WLR_BACKEND_H
-struct wlr_backend *wlr_backend_init();
-void wlr_backend_free(struct wlr_backend *backend);
+#include <wayland-server.h>
+
+struct wlr_backend_impl;
+struct wlr_backend_state;
+
+struct wlr_backend {
+ const struct wlr_backend_impl *impl;
+ struct wlr_backend_state *state;
+
+ struct {
+ struct wl_signal output_add;
+ struct wl_signal output_remove;
+ struct wl_signal keyboard_add;
+ struct wl_signal keyboard_remove;
+ struct wl_signal pointer_add;
+ struct wl_signal pointer_remove;
+ struct wl_signal touch_add;
+ struct wl_signal touch_remove;
+ } events;
+};
+
+struct wlr_backend *wlr_backend_autocreate();
+bool wlr_backend_init(struct wlr_backend *backend);
+void wlr_backend_destroy(struct wlr_backend *backend);
#endif
diff --git a/include/wlr/backend/drm.h b/include/wlr/backend/drm.h
new file mode 100644
index 00000000..2d9bf879
--- /dev/null
+++ b/include/wlr/backend/drm.h
@@ -0,0 +1,16 @@
+#ifndef WLR_BACKEND_DRM_H
+#define WLR_BACKEND_DRM_H
+
+#include <wayland-server.h>
+#include <wlr/session.h>
+#include <wlr/backend.h>
+#include <xf86drmMode.h> // drmModeModeInfo
+#include <wlr/wayland.h>
+
+struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
+ struct wlr_session *session);
+
+void wlr_drm_output_begin(struct wlr_output *out);
+void wlr_drm_output_end(struct wlr_output *out);
+
+#endif
diff --git a/include/wlr/common/log.h b/include/wlr/common/log.h
index 5b4d5a53..079f989a 100644
--- a/include/wlr/common/log.h
+++ b/include/wlr/common/log.h
@@ -1,6 +1,7 @@
#ifndef _WLR_COMMON_LOG_H
#define _WLR_COMMON_LOG_H
#include <stdbool.h>
+#include <stdarg.h>
typedef enum {
L_SILENT = 0,
diff --git a/include/wlr/session.h b/include/wlr/session.h
new file mode 100644
index 00000000..cf04f1da
--- /dev/null
+++ b/include/wlr/session.h
@@ -0,0 +1,12 @@
+#ifndef WLR_SESSION_H
+#define WLR_SESSION_H
+
+struct wlr_session;
+
+struct wlr_session *wlr_session_start(void);
+void wlr_session_finish(struct wlr_session *session);
+int wlr_session_open_file(struct wlr_session *restrict session,
+ const char *restrict path);
+void wlr_session_close_file(struct wlr_session *session, int fd);
+
+#endif
diff --git a/include/wlr/wayland.h b/include/wlr/wayland.h
index bbbd2457..158acc33 100644
--- a/include/wlr/wayland.h
+++ b/include/wlr/wayland.h
@@ -3,26 +3,26 @@
#include <wayland-server.h>
#include <wlr/common/list.h>
+#include <stdbool.h>
-struct wlr_wl_seat {
- struct wl_seat *wl_seat;
- uint32_t capabilities;
- char *name;
- list_t *keyboards;
- list_t *pointers;
-};
-
-void wlr_wl_seat_free(struct wlr_wl_seat *seat);
+struct wlr_output_mode_state;
-struct wlr_wl_output_mode {
+struct wlr_output_mode {
+ struct wlr_output_mode_state *state;
uint32_t flags; // enum wl_output_mode
int32_t width, height;
int32_t refresh; // mHz
};
-struct wlr_wl_output {
- struct wl_output *wl_output;
+struct wlr_output_impl;
+struct wlr_output_state;
+
+struct wlr_output {
+ const struct wlr_output_impl *impl;
+ struct wlr_output_state *state;
+
uint32_t flags;
+ char *name;
char *make;
char *model;
uint32_t scale;
@@ -30,20 +30,15 @@ struct wlr_wl_output {
int32_t phys_width, phys_height; // mm
int32_t subpixel; // enum wl_output_subpixel
int32_t transform; // enum wl_output_transform
- list_t *modes;
- struct wlr_wl_output_mode *current_mode;
-};
-void wlr_wl_output_free(struct wlr_wl_output *output);
+ list_t *modes;
+ struct wlr_output_mode *current_mode;
-struct wlr_wl_keyboard {
- struct wl_keyboard *wl_keyboard;
+ struct {
+ struct wl_signal frame;
+ } events;
};
-struct wlr_wl_pointer {
- struct wl_pointer *wl_pointer;
- struct wl_surface *current_surface;
- wl_fixed_t x, y;
-};
+bool wlr_output_set_mode(struct wlr_output *output, struct wlr_output_mode *mode);
#endif
diff --git a/session/CMakeLists.txt b/session/CMakeLists.txt
new file mode 100644
index 00000000..bd83068b
--- /dev/null
+++ b/session/CMakeLists.txt
@@ -0,0 +1,25 @@
+include_directories(
+ ${WAYLAND_INCLUDE_DIR}
+)
+
+set(sources
+ session.c
+ direct.c
+)
+
+set(libs
+ wlr-common
+ ${WAYLAND_LIBRARIES}
+)
+
+if (SYSTEMD_FOUND)
+ add_definitions(${SYSTEMD_DEFINITIONS})
+ include_directories(${SYSTEMD_INCLUDE_DIRS})
+
+ add_definitions(-DHAS_SYSTEMD)
+ list(APPEND sources logind.c)
+ list(APPEND libs ${SYSTEMD_LIBRARIES})
+endif ()
+
+add_library(wlr-session ${sources})
+target_link_libraries(wlr-session ${libs})
diff --git a/session/direct.c b/session/direct.c
new file mode 100644
index 00000000..08a9b617
--- /dev/null
+++ b/session/direct.c
@@ -0,0 +1,50 @@
+#define _POSIX_C_SOURCE 200809L
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <wayland-server.h>
+
+#include "session/interface.h"
+#include "common/log.h"
+
+struct direct_session {
+ struct wlr_session base;
+};
+
+static int direct_session_open(struct wlr_session *restrict base,
+ const char *restrict path) {
+ return open(path, O_RDWR | O_CLOEXEC);
+}
+
+static void direct_session_close(struct wlr_session *base, int fd) {
+ close(fd);
+}
+
+static void direct_session_finish(struct wlr_session *base) {
+ struct direct_session *session = wl_container_of(base, session, base);
+
+ free(session);
+}
+
+static struct wlr_session *direct_session_start(void) {
+ struct direct_session *session = calloc(1, sizeof(*session));
+ if (!session) {
+ wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
+ return NULL;
+ }
+
+ wlr_log(L_INFO, "Successfully loaded direct session");
+
+ session->base.iface = session_direct_iface;
+ return &session->base;
+}
+
+const struct session_interface session_direct_iface = {
+ .start = direct_session_start,
+ .finish = direct_session_finish,
+ .open = direct_session_open,
+ .close = direct_session_close,
+};
diff --git a/session/logind.c b/session/logind.c
new file mode 100644
index 00000000..052c7454
--- /dev/null
+++ b/session/logind.c
@@ -0,0 +1,223 @@
+#define _POSIX_C_SOURCE 200809L
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <systemd/sd-bus.h>
+#include <systemd/sd-login.h>
+#include <unistd.h>
+#include <sys/sysmacros.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <wayland-server.h>
+
+#include "session/interface.h"
+#include "common/log.h"
+
+struct logind_session {
+ struct wlr_session base;
+
+ sd_bus *bus;
+
+ char *id;
+ char *path;
+ char *seat;
+};
+
+static int logind_take_device(struct wlr_session *restrict base,
+ const char *restrict path) {
+
+ struct logind_session *session = wl_container_of(base, session, base);
+
+ int ret;
+ int fd = -1;
+ sd_bus_message *msg = NULL;
+ sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ struct stat st;
+ if (stat(path, &st) < 0) {
+ wlr_log(L_ERROR, "Failed to stat '%s'", path);
+ return -1;
+ }
+
+ ret = sd_bus_call_method(session->bus, "org.freedesktop.login1",
+ session->path, "org.freedesktop.login1.Session", "TakeDevice",
+ &error, &msg, "uu", major(st.st_rdev), minor(st.st_rdev));
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to take device '%s': %s", path, error.message);
+ goto error;
+ }
+
+ int paused = 0;
+ ret = sd_bus_message_read(msg, "hb", &fd, &paused);
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to parse DBus response for '%s': %s",
+ path, strerror(-ret));
+ goto error;
+ }
+
+ // The original fd seem to be closed when the message is freed
+ // so we just clone it.
+ fd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
+ if (fd == -1) {
+ wlr_log(L_ERROR, "Failed to clone file descriptor for '%s': %s",
+ path, strerror(errno));
+ goto error;
+ }
+
+error:
+ sd_bus_error_free(&error);
+ sd_bus_message_unref(msg);
+ return fd;
+}
+
+static void logind_release_device(struct wlr_session *base, int fd) {
+ struct logind_session *session = wl_container_of(base, session, base);
+
+ int ret;
+ sd_bus_message *msg = NULL;
+ sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ struct stat st;
+ if (fstat(fd, &st) < 0) {
+ wlr_log(L_ERROR, "Failed to stat device '%d'", fd);
+ return;
+ }
+
+ ret = sd_bus_call_method(session->bus, "org.freedesktop.login1",
+ session->path, "org.freedesktop.login1.Session", "ReleaseDevice",
+ &error, &msg, "uu", major(st.st_rdev), minor(st.st_rdev));
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to release device '%d'", fd);
+ }
+
+ sd_bus_error_free(&error);
+ sd_bus_message_unref(msg);
+}
+
+static bool session_activate(struct logind_session *session) {
+ int ret;
+ sd_bus_message *msg = NULL;
+ sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ ret = sd_bus_call_method(session->bus, "org.freedesktop.login1",
+ session->path, "org.freedesktop.login1.Session", "Activate",
+ &error, &msg, "");
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to activate session");
+ }
+
+ sd_bus_error_free(&error);
+ sd_bus_message_unref(msg);
+ return ret >= 0;
+}
+
+static bool take_control(struct logind_session *session) {
+ int ret;
+ sd_bus_message *msg = NULL;
+ sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ ret = sd_bus_call_method(session->bus, "org.freedesktop.login1",
+ session->path, "org.freedesktop.login1.Session", "TakeControl",
+ &error, &msg, "b", false);
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to take control of session");
+ }
+
+ sd_bus_error_free(&error);
+ sd_bus_message_unref(msg);
+ return ret >= 0;
+}
+
+static void release_control(struct logind_session *session) {
+ int ret;
+ sd_bus_message *msg = NULL;
+ sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ ret = sd_bus_call_method(session->bus, "org.freedesktop.login1",
+ session->path, "org.freedesktop.login1.Session", "ReleaseControl",
+ &error, &msg, "");
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to release control of session");
+ }
+
+ sd_bus_error_free(&error);
+ sd_bus_message_unref(msg);
+}
+
+static void logind_session_finish(struct wlr_session *base) {
+ struct logind_session *session = wl_container_of(base, session, base);
+
+ release_control(session);
+
+ sd_bus_unref(session->bus);
+ free(session->id);
+ free(session->path);
+ free(session->seat);
+ free(session);
+}
+
+static struct wlr_session *logind_session_start(void) {
+ int ret;
+ struct logind_session *session = calloc(1, sizeof(*session));
+ if (!session) {
+ wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
+ return NULL;
+ }
+
+ ret = sd_pid_get_session(getpid(), &session->id);
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to get session id: %s", strerror(-ret));
+ goto error;
+ }
+
+ ret = sd_session_get_seat(session->id, &session->seat);
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to get seat id: %s", strerror(-ret));
+ goto error;
+ }
+
+ const char *fmt = "/org/freedesktop/login1/session/%s";
+ int len = snprintf(NULL, 0, fmt, session->id);
+
+ session->path = malloc(len + 1);
+ if (!session->path)
+ goto error;
+
+ sprintf(session->path, fmt, session->id);
+
+ ret = sd_bus_default_system(&session->bus);
+ if (ret < 0) {
+ wlr_log(L_ERROR, "Failed to open DBus connection: %s", strerror(-ret));
+ goto error;
+ }
+
+ if (!session_activate(session))
+ goto error_bus;
+
+ if (!take_control(session))
+ goto error_bus;
+
+ wlr_log(L_INFO, "Successfully loaded logind session");
+
+ session->base.iface = session_logind_iface;
+ return &session->base;
+
+error_bus:
+ sd_bus_unref(session->bus);
+
+error:
+ free(session->path);
+ free(session->id);
+ free(session->seat);
+ return NULL;
+}
+
+const struct session_interface session_logind_iface = {
+ .start = logind_session_start,
+ .finish = logind_session_finish,
+ .open = logind_take_device,
+ .close = logind_release_device,
+};
diff --git a/session/session.c b/session/session.c
new file mode 100644
index 00000000..0562dbf7
--- /dev/null
+++ b/session/session.c
@@ -0,0 +1,42 @@
+#include <stddef.h>
+
+#include <wlr/session.h>
+#include <stdarg.h>
+#include "common/log.h"
+#include "session/interface.h"
+
+static const struct session_interface *ifaces[] = {
+#ifdef HAS_SYSTEMD
+ &session_logind_iface,
+#endif
+ &session_direct_iface,
+ NULL,
+};
+
+struct wlr_session *wlr_session_start(void) {
+ const struct session_interface **iter;
+
+ for (iter = ifaces; *iter; ++iter) {
+ struct wlr_session *session = (*iter)->start();
+ if (session) {
+ return session;
+ }
+ }
+
+ wlr_log(L_ERROR, "Failed to load session backend");
+ return NULL;
+}
+
+void wlr_session_finish(struct wlr_session *session) {
+ session->iface.finish(session);
+};
+
+int wlr_session_open_file(struct wlr_session *restrict session,
+ const char *restrict path) {
+
+ return session->iface.open(session, path);
+}
+
+void wlr_session_close_file(struct wlr_session *session, int fd) {
+ session->iface.close(session, fd);
+}
diff --git a/wayland/CMakeLists.txt b/wayland/CMakeLists.txt
index be4a00de..675a7bd2 100644
--- a/wayland/CMakeLists.txt
+++ b/wayland/CMakeLists.txt
@@ -4,8 +4,7 @@ include_directories(
)
add_library(wlr-wayland
- types/wlr_wl_seat.c
- types/wlr_wl_output.c
+ types/wlr_output.c
)
target_link_libraries(wlr-wayland
diff --git a/wayland/types/wlr_output.c b/wayland/types/wlr_output.c
new file mode 100644
index 00000000..bc093c00
--- /dev/null
+++ b/wayland/types/wlr_output.c
@@ -0,0 +1,31 @@
+#include <stdlib.h>
+#include <wayland-server.h>
+#include "wlr/wayland.h"
+#include "wlr/common/list.h"
+#include "wayland.h"
+
+struct wlr_output *wlr_output_create(struct wlr_output_impl *impl,
+ struct wlr_output_state *state) {
+ struct wlr_output *output = calloc(1, sizeof(struct wlr_output));
+ output->impl = impl;
+ output->state = state;
+ output->modes = list_create();
+ wl_signal_init(&output->events.frame);
+ return output;
+}
+
+void wlr_output_free(struct wlr_output *output) {
+ if (!output) return;
+ if (output->make) free(output->make);
+ if (output->model) free(output->model);
+ for (size_t i = 0; output->modes && i < output->modes->length; ++i) {
+ free(output->modes->items[i]);
+ }
+ list_free(output->modes);
+ output->impl->destroy(output->state);
+ free(output);
+}
+
+bool wlr_output_set_mode(struct wlr_output *output, struct wlr_output_mode *mode) {
+ return output->impl->set_mode(output->state, mode);
+}
diff --git a/wayland/types/wlr_wl_output.c b/wayland/types/wlr_wl_output.c
deleted file mode 100644
index 32aaf070..00000000
--- a/wayland/types/wlr_wl_output.c
+++ /dev/null
@@ -1,16 +0,0 @@
-#include <stdlib.h>
-#include <wayland-client.h>
-#include "wlr/wayland.h"
-#include "wlr/common/list.h"
-
-void wlr_wl_output_free(struct wlr_wl_output *output) {
- if (!output) return;
- if (output->wl_output) wl_output_destroy(output->wl_output);
- if (output->make) free(output->make);
- if (output->model) free(output->model);
- for (size_t i = 0; output->modes && i < output->modes->length; ++i) {
- free(output->modes->items[i]);
- }
- list_free(output->modes);
- free(output);
-}
diff --git a/wayland/types/wlr_wl_seat.c b/wayland/types/wlr_wl_seat.c
deleted file mode 100644
index a5ef3853..00000000
--- a/wayland/types/wlr_wl_seat.c
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <stdlib.h>
-#include <wayland-client.h>
-#include "wlr/wayland.h"
-#include "wlr/common/list.h"
-
-void wlr_wl_seat_free(struct wlr_wl_seat *seat) {
- if (!seat) return;
- if (seat->wl_seat) wl_seat_destroy(seat->wl_seat);
- if (seat->name) free(seat->name);
- if (seat->keyboards) {
- // TODO: free children
- list_free(seat->keyboards);
- }
- if (seat->pointers) {
- // TODO: free children
- list_free(seat->keyboards);
- }
- free(seat);
-}