/* * Copyright © 2008 Kristian Høgsberg * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "wayland-server-protocol.h" #include "compositor.h" const char *option_background = "background.jpg"; int option_connector = 0; static const GOptionEntry option_entries[] = { { "background", 'b', 0, G_OPTION_ARG_STRING, &option_background, "Background image" }, { "connector", 'c', 0, G_OPTION_ARG_INT, &option_connector, "KMS connector" }, { NULL } }; static void wlsc_input_device_set_pointer_focus(struct wlsc_input_device *device, struct wlsc_surface *surface, uint32_t time, int32_t x, int32_t y, int32_t sx, int32_t sy); static void wlsc_matrix_init(struct wlsc_matrix *matrix) { static const struct wlsc_matrix identity = { { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 } }; memcpy(matrix, &identity, sizeof identity); } static void wlsc_matrix_multiply(struct wlsc_matrix *m, const struct wlsc_matrix *n) { struct wlsc_matrix tmp; const GLfloat *row, *column; div_t d; int i, j; for (i = 0; i < 16; i++) { tmp.d[i] = 0; d = div(i, 4); row = m->d + d.quot * 4; column = n->d + d.rem; for (j = 0; j < 4; j++) tmp.d[i] += row[j] * column[j * 4]; } memcpy(m, &tmp, sizeof tmp); } static void wlsc_matrix_translate(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z) { struct wlsc_matrix translate = { { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, x, y, z, 1 } }; wlsc_matrix_multiply(matrix, &translate); } static void wlsc_matrix_scale(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z) { struct wlsc_matrix scale = { { x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1 } }; wlsc_matrix_multiply(matrix, &scale); } static void wlsc_matrix_transform(struct wlsc_matrix *matrix, struct wlsc_vector *v) { int i, j; struct wlsc_vector t; for (i = 0; i < 4; i++) { t.f[i] = 0; for (j = 0; j < 4; j++) t.f[i] += v->f[j] * matrix->d[i + j * 4]; } *v = t; } static struct wlsc_surface * wlsc_surface_create(struct wlsc_compositor *compositor, struct wl_visual *visual, int32_t x, int32_t y, int32_t width, int32_t height) { struct wlsc_surface *surface; surface = malloc(sizeof *surface); if (surface == NULL) return NULL; glGenTextures(1, &surface->texture); glBindTexture(GL_TEXTURE_2D, surface->texture); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); surface->compositor = compositor; surface->visual = visual; surface->x = x; surface->y = y; surface->width = width; surface->height = height; wlsc_matrix_init(&surface->matrix); wlsc_matrix_scale(&surface->matrix, width, height, 1); wlsc_matrix_translate(&surface->matrix, x, y, 0); wlsc_matrix_init(&surface->matrix_inv); wlsc_matrix_translate(&surface->matrix_inv, -x, -y, 0); wlsc_matrix_scale(&surface->matrix_inv, 1.0 / width, 1.0 / height, 1); return surface; } static void destroy_surface(struct wl_resource *resource, struct wl_client *client) { struct wlsc_surface *surface = container_of(resource, struct wlsc_surface, base.base); struct wlsc_compositor *compositor = surface->compositor; struct wlsc_listener *l; wl_list_remove(&surface->link); glDeleteTextures(1, &surface->texture); wl_list_for_each(l, &compositor->surface_destroy_listener_list, link) l->func(l, surface); free(surface); wlsc_compositor_schedule_repaint(compositor); } static int texture_from_png(const char *filename, int width, int height) { GdkPixbuf *pixbuf; GError *error = NULL; void *data; GLenum format; pixbuf = gdk_pixbuf_new_from_file_at_scale(filename, width, height, FALSE, &error); if (error != NULL) return -1; data = gdk_pixbuf_get_pixels(pixbuf); if (gdk_pixbuf_get_has_alpha(pixbuf)) format = GL_RGBA; else format = GL_RGB; glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, format, GL_UNSIGNED_BYTE, data); gdk_pixbuf_unref(pixbuf); return 0; } static const struct { const char *filename; int hotspot_x, hotspot_y; } pointer_images[] = { { DATADIR "/wayland/bottom_left_corner.png", 6, 30 }, { DATADIR "/wayland/bottom_right_corner.png", 28, 28 }, { DATADIR "/wayland/bottom_side.png", 16, 20 }, { DATADIR "/wayland/grabbing.png", 20, 17 }, { DATADIR "/wayland/left_ptr.png", 10, 5 }, { DATADIR "/wayland/left_side.png", 10, 20 }, { DATADIR "/wayland/right_side.png", 30, 19 }, { DATADIR "/wayland/top_left_corner.png", 8, 8 }, { DATADIR "/wayland/top_right_corner.png", 26, 8 }, { DATADIR "/wayland/top_side.png", 18, 8 }, { DATADIR "/wayland/xterm.png", 15, 15 } }; static void create_pointer_images(struct wlsc_compositor *ec) { int i, count; GLuint texture; const int width = 32, height = 32; EGLint image_attribs[] = { EGL_WIDTH, 0, EGL_HEIGHT, 0, EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA, EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SCANOUT_MESA, EGL_NONE }; glGenTextures(1, &texture); glBindTexture(GL_TEXTURE_2D, texture); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); image_attribs[1] = width; image_attribs[3] = height; count = ARRAY_LENGTH(pointer_images); ec->pointer_buffers = malloc(count * sizeof *ec->pointer_buffers); for (i = 0; i < count; i++) { ec->pointer_buffers[i].image = eglCreateDRMImageMESA(ec->display, image_attribs); glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, ec->pointer_buffers[i].image); texture_from_png(pointer_images[i].filename, width, height); ec->pointer_buffers[i].visual = &ec->argb_visual; ec->pointer_buffers[i].width = width; ec->pointer_buffers[i].height = height; } } static struct wlsc_surface * background_create(struct wlsc_output *output, const char *filename) { struct wlsc_surface *background; GdkPixbuf *pixbuf; GError *error = NULL; void *data; GLenum format; background = wlsc_surface_create(output->compositor, &output->compositor->rgb_visual, output->x, output->y, output->width, output->height); if (background == NULL) return NULL; pixbuf = gdk_pixbuf_new_from_file_at_scale(filename, output->width, output->height, FALSE, &error); if (error != NULL) { free(background); return NULL; } data = gdk_pixbuf_get_pixels(pixbuf); if (gdk_pixbuf_get_has_alpha(pixbuf)) format = GL_RGBA; else format = GL_RGB; glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, output->width, output->height, 0, format, GL_UNSIGNED_BYTE, data); return background; } static void wlsc_surface_draw(struct wlsc_surface *es, struct wlsc_output *output) { struct wlsc_compositor *ec = es->compositor; struct wlsc_matrix tmp; tmp = es->matrix; wlsc_matrix_multiply(&tmp, &output->matrix); glUniformMatrix4fv(ec->proj_uniform, 1, GL_FALSE, tmp.d); glUniform1i(ec->tex_uniform, 0); if (es->visual == &ec->argb_visual) { glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); } else if (es->visual == &ec->premultiplied_argb_visual) { glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); } else { glDisable(GL_BLEND); } glBindTexture(GL_TEXTURE_2D, es->texture); glEnable(GL_TEXTURE_2D); glBindBuffer(GL_ARRAY_BUFFER, ec->vbo); glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), NULL); glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), (GLfloat *) 0 + 3); glEnableVertexAttribArray(0); glEnableVertexAttribArray(1); glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); } static void wlsc_surface_raise(struct wlsc_surface *surface) { struct wlsc_compositor *compositor = surface->compositor; wl_list_remove(&surface->link); wl_list_insert(&compositor->surface_list, &surface->link); } static void wlsc_surface_update_matrix(struct wlsc_surface *es) { wlsc_matrix_init(&es->matrix); wlsc_matrix_scale(&es->matrix, es->width, es->height, 1); wlsc_matrix_translate(&es->matrix, es->x, es->y, 0); wlsc_matrix_init(&es->matrix_inv); wlsc_matrix_translate(&es->matrix_inv, -es->x, -es->y, 0); wlsc_matrix_scale(&es->matrix_inv, 1.0 / es->width, 1.0 / es->height, 1); } void wlsc_compositor_finish_frame(struct wlsc_compositor *compositor, int msecs) { wl_display_post_frame(compositor->wl_display, &compositor->base, compositor->current_frame, msecs); wl_event_source_timer_update(compositor->timer_source, 5); compositor->current_frame++; } static void wlsc_output_repaint(struct wlsc_output *output) { struct wlsc_compositor *ec = output->compositor; struct wlsc_surface *es; struct wlsc_input_device *eid; glViewport(0, 0, output->width, output->height); if (output->background) wlsc_surface_draw(output->background, output); else glClear(GL_COLOR_BUFFER_BIT); wl_list_for_each_reverse(es, &ec->surface_list, link) wlsc_surface_draw(es, output); if (ec->focus) wl_list_for_each(eid, &ec->input_device_list, link) wlsc_surface_draw(eid->sprite, output); } static void repaint(void *data) { struct wlsc_compositor *ec = data; struct wlsc_output *output; if (!ec->repaint_needed) { ec->repaint_on_timeout = 0; return; } wl_list_for_each(output, &ec->output_list, link) wlsc_output_repaint(output); ec->present(ec); ec->repaint_needed = 0; } void wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor) { compositor->repaint_needed = 1; if (compositor->repaint_on_timeout) return; wl_event_source_timer_update(compositor->timer_source, 1); compositor->repaint_on_timeout = 1; } static void surface_destroy(struct wl_client *client, struct wl_surface *surface) { wl_resource_destroy(&surface->base, client); } static void surface_attach(struct wl_client *client, struct wl_surface *surface, struct wl_buffer *buffer_base) { struct wlsc_surface *es = (struct wlsc_surface *) surface; struct wlsc_buffer *buffer = (struct wlsc_buffer *) buffer_base; glBindTexture(GL_TEXTURE_2D, es->texture); glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, buffer->image); es->visual = buffer->visual; } static void surface_map(struct wl_client *client, struct wl_surface *surface, int32_t x, int32_t y, int32_t width, int32_t height) { struct wlsc_surface *es = (struct wlsc_surface *) surface; es->x = x; es->y = y; es->width = width; es->height = height; wlsc_surface_update_matrix(es); } static void surface_damage(struct wl_client *client, struct wl_surface *surface, int32_t x, int32_t y, int32_t width, int32_t height) { /* FIXME: This need to take a damage region, of course. */ } const static struct wl_surface_interface surface_interface = { surface_destroy, surface_attach, surface_map, surface_damage }; static void wlsc_input_device_attach(struct wlsc_input_device *device, struct wlsc_buffer *buffer, int x, int y) { struct wlsc_compositor *ec = device->ec; glBindTexture(GL_TEXTURE_2D, device->sprite->texture); glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, buffer->image); device->sprite->visual = buffer->visual; device->hotspot_x = x; device->hotspot_y = y; device->sprite->x = device->x - device->hotspot_x; device->sprite->y = device->y - device->hotspot_y; device->sprite->width = buffer->width; device->sprite->height = buffer->height; wlsc_surface_update_matrix(device->sprite); wlsc_compositor_schedule_repaint(ec); } static void wlsc_input_device_set_pointer_image(struct wlsc_input_device *device, enum wlsc_pointer_type type) { struct wlsc_compositor *compositor = device->ec; wlsc_input_device_attach(device, &compositor->pointer_buffers[type], pointer_images[type].hotspot_x, pointer_images[type].hotspot_y); } static void wlsc_input_device_start_grab(struct wlsc_input_device *device, uint32_t time, enum wlsc_grab_type grab) { device->grab = grab; device->grab_surface = device->pointer_focus; device->grab_dx = device->pointer_focus->x - device->grab_x; device->grab_dy = device->pointer_focus->y - device->grab_y; device->grab_width = device->pointer_focus->width; device->grab_height = device->pointer_focus->height; wlsc_input_device_set_pointer_focus(device, (struct wlsc_surface *) &wl_grab_surface, time, 0, 0, 0, 0); } static void shell_move(struct wl_client *client, struct wl_shell *shell, struct wl_surface *surface, struct wl_input_device *device, uint32_t time) { struct wlsc_input_device *wd = (struct wlsc_input_device *) device; if (wd->grab != WLSC_DEVICE_GRAB_MOTION || wd->grab_time != time || &wd->pointer_focus->base != surface) return; wlsc_input_device_start_grab(wd, time, WLSC_DEVICE_GRAB_MOVE); wlsc_input_device_set_pointer_image(wd, WLSC_POINTER_DRAGGING); } static void shell_resize(struct wl_client *client, struct wl_shell *shell, struct wl_surface *surface, struct wl_input_device *device, uint32_t time, uint32_t edges) { struct wlsc_input_device *wd = (struct wlsc_input_device *) device; enum wlsc_pointer_type pointer = WLSC_POINTER_LEFT_PTR; if (edges == 0 || edges > 15 || (edges & 3) == 3 || (edges & 12) == 12) return; if (wd->grab != WLSC_DEVICE_GRAB_MOTION || wd->grab_time != time || &wd->pointer_focus->base != surface) return; switch (edges) { case WLSC_DEVICE_GRAB_RESIZE_TOP: pointer = WLSC_POINTER_TOP; break; case WLSC_DEVICE_GRAB_RESIZE_BOTTOM: pointer = WLSC_POINTER_BOTTOM; break; case WLSC_DEVICE_GRAB_RESIZE_LEFT: pointer = WLSC_POINTER_LEFT; break; case WLSC_DEVICE_GRAB_RESIZE_TOP_LEFT: pointer = WLSC_POINTER_TOP_LEFT; break; case WLSC_DEVICE_GRAB_RESIZE_BOTTOM_LEFT: pointer = WLSC_POINTER_BOTTOM_LEFT; break; case WLSC_DEVICE_GRAB_RESIZE_RIGHT: pointer = WLSC_POINTER_RIGHT; break; case WLSC_DEVICE_GRAB_RESIZE_TOP_RIGHT: pointer = WLSC_POINTER_TOP_RIGHT; break; case WLSC_DEVICE_GRAB_RESIZE_BOTTOM_RIGHT: pointer = WLSC_POINTER_BOTTOM_RIGHT; break; } wlsc_input_device_start_grab(wd, time, edges); wlsc_input_device_set_pointer_image(wd, pointer); } const static struct wl_shell_interface shell_interface = { shell_move, shell_resize }; static void compositor_create_surface(struct wl_client *client, struct wl_compositor *compositor, uint32_t id) { struct wlsc_compositor *ec = (struct wlsc_compositor *) compositor; struct wlsc_surface *surface; surface = wlsc_surface_create(ec, NULL, 0, 0, 0, 0); if (surface == NULL) { wl_client_post_event(client, (struct wl_object *) ec->wl_display, WL_DISPLAY_NO_MEMORY, 0); return; } wl_list_insert(ec->surface_list.prev, &surface->link); surface->base.base.destroy = destroy_surface; wl_client_add_surface(client, &surface->base, &surface_interface, id); } static void compositor_commit(struct wl_client *client, struct wl_compositor *compositor, uint32_t key) { struct wlsc_compositor *ec = (struct wlsc_compositor *) compositor; wlsc_compositor_schedule_repaint(ec); wl_client_send_acknowledge(client, compositor, key, ec->current_frame); } const static struct wl_compositor_interface compositor_interface = { compositor_create_surface, compositor_commit }; static void wlsc_surface_transform(struct wlsc_surface *surface, int32_t x, int32_t y, int32_t *sx, int32_t *sy) { struct wlsc_vector v = { { x, y, 0, 1 } }; wlsc_matrix_transform(&surface->matrix_inv, &v); *sx = v.f[0] * surface->width; *sy = v.f[1] * surface->height; } static void wlsc_input_device_set_keyboard_focus(struct wlsc_input_device *device, struct wlsc_surface *surface, uint32_t time) { if (device->keyboard_focus == surface) return; if (device->keyboard_focus && (!surface || device->keyboard_focus->base.client != surface->base.client)) wl_surface_post_event(&device->keyboard_focus->base, &device->base.base, WL_INPUT_DEVICE_KEYBOARD_FOCUS, time, NULL, &device->keys); if (surface) wl_surface_post_event(&surface->base, &device->base.base, WL_INPUT_DEVICE_KEYBOARD_FOCUS, time, &surface->base, &device->keys); device->keyboard_focus = surface; } static void wlsc_input_device_set_pointer_focus(struct wlsc_input_device *device, struct wlsc_surface *surface, uint32_t time, int32_t x, int32_t y, int32_t sx, int32_t sy) { if (device->pointer_focus == surface) return; if (device->pointer_focus && (!surface || device->pointer_focus->base.client != surface->base.client)) wl_surface_post_event(&device->pointer_focus->base, &device->base.base, WL_INPUT_DEVICE_POINTER_FOCUS, time, NULL, 0, 0, 0, 0); if (surface) wl_surface_post_event(&surface->base, &device->base.base, WL_INPUT_DEVICE_POINTER_FOCUS, time, &surface->base, x, y, sx, sy); if (!surface) wlsc_input_device_set_pointer_image(device, WLSC_POINTER_LEFT_PTR); device->pointer_focus = surface; } static struct wlsc_surface * pick_surface(struct wlsc_input_device *device, int32_t *sx, int32_t *sy) { struct wlsc_compositor *ec = device->ec; struct wlsc_surface *es; wl_list_for_each(es, &ec->surface_list, link) { wlsc_surface_transform(es, device->x, device->y, sx, sy); if (0 <= *sx && *sx < es->width && 0 <= *sy && *sy < es->height) return es; } return NULL; } static void wl_drag_reset(struct wl_drag *drag); static void wl_drag_set_pointer_focus(struct wl_drag *drag, struct wlsc_surface *surface, uint32_t time, int32_t x, int32_t y, int32_t sx, int32_t sy); void notify_motion(struct wlsc_input_device *device, uint32_t time, int x, int y) { struct wlsc_surface *es; struct wlsc_compositor *ec = device->ec; struct wlsc_output *output; int32_t sx, sy, width, height; /* FIXME: We need some multi head love here. */ output = container_of(ec->output_list.next, struct wlsc_output, link); if (x < output->x) x = 0; if (y < output->y) y = 0; if (x >= output->x + output->width) x = output->x + output->width - 1; if (y >= output->y + output->height) y = output->y + output->height - 1; device->x = x; device->y = y; switch (device->grab) { case WLSC_DEVICE_GRAB_NONE: es = pick_surface(device, &sx, &sy); wlsc_input_device_set_pointer_focus(device, es, time, x, y, sx, sy); if (es) wl_surface_post_event(&es->base, &device->base.base, WL_INPUT_DEVICE_MOTION, time, x, y, sx, sy); break; case WLSC_DEVICE_GRAB_MOTION: es = device->pointer_focus; wlsc_surface_transform(es, x, y, &sx, &sy); wl_surface_post_event(&es->base, &device->base.base, WL_INPUT_DEVICE_MOTION, time, x, y, sx, sy); break; case WLSC_DEVICE_GRAB_MOVE: es = device->grab_surface; es->x = x + device->grab_dx; es->y = y + device->grab_dy;; wl_surface_post_event(&es->base, &ec->shell.base, WL_SHELL_CONFIGURE, time, device->grab, &es->base, es->x, es->y, es->width, es->height); wlsc_surface_update_matrix(es); break; case WLSC_DEVICE_GRAB_RESIZE_TOP: case WLSC_DEVICE_GRAB_RESIZE_BOTTOM: case WLSC_DEVICE_GRAB_RESIZE_LEFT: case WLSC_DEVICE_GRAB_RESIZE_TOP_LEFT: case WLSC_DEVICE_GRAB_RESIZE_BOTTOM_LEFT: case WLSC_DEVICE_GRAB_RESIZE_RIGHT: case WLSC_DEVICE_GRAB_RESIZE_TOP_RIGHT: case WLSC_DEVICE_GRAB_RESIZE_BOTTOM_RIGHT: case WLSC_DEVICE_GRAB_RESIZE_MASK: es = device->grab_surface; if (device->grab & WLSC_DEVICE_GRAB_RESIZE_LEFT) { sx = x + device->grab_dx; width = device->grab_x - x + device->grab_width; } else if (device->grab & WLSC_DEVICE_GRAB_RESIZE_RIGHT) { sx = device->grab_x + device->grab_dx; width = x - device->grab_x + device->grab_width; } else { sx = device->grab_x + device->grab_dx; width = device->grab_width; } if (device->grab & WLSC_DEVICE_GRAB_RESIZE_TOP) { sy = y + device->grab_dy; height = device->grab_y - y + device->grab_height; } else if (device->grab & WLSC_DEVICE_GRAB_RESIZE_BOTTOM) { sy = device->grab_y + device->grab_dy; height = y - device->grab_y + device->grab_height; } else { sy = device->grab_y + device->grab_dy; height = device->grab_height; } wl_surface_post_event(&es->base, &ec->shell.base, WL_SHELL_CONFIGURE, time, device->grab, &es->base, sx, sy, width, height); break; case WLSC_DEVICE_GRAB_DRAG: es = pick_surface(device, &sx, &sy); wl_drag_set_pointer_focus(&device->drag, es, time, x, y, sx, sy); if (es) wl_surface_post_event(&es->base, &device->drag.base, WL_DRAG_MOTION, time, x, y, sx, sy); break; } device->sprite->x = device->x - device->hotspot_x; device->sprite->y = device->y - device->hotspot_y; wlsc_surface_update_matrix(device->sprite); wlsc_compositor_schedule_repaint(device->ec); } static void wlsc_input_device_end_grab(struct wlsc_input_device *device, uint32_t time) { struct wl_drag *drag = &device->drag; struct wlsc_surface *es; int32_t sx, sy; switch (device->grab) { case WLSC_DEVICE_GRAB_DRAG: wl_drag_set_pointer_focus(drag, NULL, time, 0, 0, 0, 0); wl_surface_post_event(drag->source, &drag->base, WL_DRAG_FINISH); wl_drag_reset(drag); break; default: break; } device->grab = WLSC_DEVICE_GRAB_NONE; es = pick_surface(device, &sx, &sy); wlsc_input_device_set_pointer_focus(device, es, time, device->x, device->y, sx, sy); } void notify_button(struct wlsc_input_device *device, uint32_t time, int32_t button, int32_t state) { struct wlsc_surface *surface; struct wlsc_compositor *compositor = device->ec; surface = device->pointer_focus; if (surface) { if (state && device->grab == WLSC_DEVICE_GRAB_NONE) { wlsc_surface_raise(surface); device->grab = WLSC_DEVICE_GRAB_MOTION; device->grab_button = button; device->grab_time = time; device->grab_x = device->x; device->grab_y = device->y; wlsc_input_device_set_keyboard_focus(device, surface, time); } if (state && button == BTN_LEFT && device->grab == WLSC_DEVICE_GRAB_MOTION && (device->modifier_state & MODIFIER_SUPER)) shell_move(NULL, (struct wl_shell *) &compositor->shell, &surface->base, &device->base, time); else if (state && button == BTN_MIDDLE && device->grab == WLSC_DEVICE_GRAB_MOTION && (device->modifier_state & MODIFIER_SUPER)) shell_resize(NULL, (struct wl_shell *) &compositor->shell, &surface->base, &device->base, time, WLSC_DEVICE_GRAB_RESIZE_BOTTOM_RIGHT); else if (device->grab == WLSC_DEVICE_GRAB_NONE || device->grab == WLSC_DEVICE_GRAB_MOTION) wl_surface_post_event(&surface->base, &device->base.base, WL_INPUT_DEVICE_BUTTON, time, button, state); if (!state && device->grab != WLSC_DEVICE_GRAB_NONE && device->grab_button == button) { wlsc_input_device_end_grab(device, time); } wlsc_compositor_schedule_repaint(compositor); } } void notify_key(struct wlsc_input_device *device, uint32_t time, uint32_t key, uint32_t state) { uint32_t *k, *end; uint32_t modifier; switch (key | device->modifier_state) { case KEY_BACKSPACE | MODIFIER_CTRL | MODIFIER_ALT: kill(0, SIGTERM); return; } switch (key) { case KEY_LEFTCTRL: case KEY_RIGHTCTRL: modifier = MODIFIER_CTRL; break; case KEY_LEFTALT: case KEY_RIGHTALT: modifier = MODIFIER_ALT; break; case KEY_LEFTMETA: case KEY_RIGHTMETA: modifier = MODIFIER_SUPER; break; default: modifier = 0; break; } if (state) device->modifier_state |= modifier; else device->modifier_state &= ~modifier; end = device->keys.data + device->keys.size; for (k = device->keys.data; k < end; k++) { if (*k == key) *k = *--end; } device->keys.size = (void *) end - device->keys.data; if (state) { k = wl_array_add(&device->keys, sizeof *k); *k = key; } if (device->keyboard_focus != NULL) wl_surface_post_event(&device->keyboard_focus->base, &device->base.base, WL_INPUT_DEVICE_KEY, time, key, state); } static void input_device_attach(struct wl_client *client, struct wl_input_device *device_base, struct wl_buffer *buffer_base, int32_t x, int32_t y) { struct wlsc_input_device *device = (struct wlsc_input_device *) device_base; struct wlsc_buffer *buffer = (struct wlsc_buffer *) buffer_base; if (device->pointer_focus == NULL) return; if (device->pointer_focus->base.client != client && !(&device->pointer_focus->base == &wl_grab_surface && device->grab_surface->base.client == client)) return; if (buffer == NULL) { wlsc_input_device_set_pointer_image(device, WLSC_POINTER_LEFT_PTR); return; } wlsc_input_device_attach(device, buffer, x, y); } const static struct wl_input_device_interface input_device_interface = { input_device_attach, }; static uint32_t get_time(void) { struct timeval tv; gettimeofday(&tv, NULL); return tv.tv_sec * 1000 + tv.tv_usec / 1000; } static void handle_surface_destroy(struct wlsc_listener *listener, struct wlsc_surface *surface) { struct wlsc_input_device *device = container_of(listener, struct wlsc_input_device, listener); uint32_t time = get_time(); if (device->keyboard_focus == surface) wlsc_input_device_set_keyboard_focus(device, NULL, time); if (device->pointer_focus == surface || (&device->pointer_focus->base == &wl_grab_surface && device->grab_surface == surface)) wlsc_input_device_end_grab(device, time); } static void wl_drag_set_pointer_focus(struct wl_drag *drag, struct wlsc_surface *surface, uint32_t time, int32_t x, int32_t y, int32_t sx, int32_t sy) { char **p, **end; if (drag->pointer_focus == &surface->base) return; if (drag->pointer_focus && (!surface || drag->pointer_focus->client != surface->base.client)) wl_surface_post_event(drag->pointer_focus, &drag->base, WL_DRAG_POINTER_FOCUS, time, NULL, 0, 0, 0, 0); if (surface) { wl_surface_post_event(&surface->base, &drag->base, WL_DRAG_POINTER_FOCUS, time, &surface->base, x, y, sx, sy); end = drag->types.data + drag->types.size; for (p = drag->types.data; p < end; p++) wl_surface_post_event(&surface->base, &drag->base, WL_DRAG_OFFER, *p); } drag->pointer_focus = &surface->base; } static void wl_drag_reset(struct wl_drag *drag) { char **p, **end; end = drag->types.data + drag->types.size; for (p = drag->types.data; p < end; p++) free(*p); wl_array_release(&drag->types); wl_array_init(&drag->types); drag->source = NULL; /* FIXME: We need to reset drag->target too, but can't right * now because we need it for send/drop. * * drag->target = NULL; */ drag->time = 0; drag->pointer_focus = NULL; } static void drag_prepare(struct wl_client *client, struct wl_drag *drag, struct wl_surface *surface, uint32_t time) { struct wlsc_input_device *device = (struct wlsc_input_device *) drag->input_device; if (&device->pointer_focus->base != surface || device->grab_time != time) return; wl_drag_reset(drag); drag->source = surface; drag->time = time; } static void drag_offer(struct wl_client *client, struct wl_drag *drag, const char *type) { struct wl_display *display = wl_client_get_display (client); struct wlsc_input_device *device = (struct wlsc_input_device *) drag->input_device; char **p; if (drag->source == NULL || drag->source->client != client || device->grab != WLSC_DEVICE_GRAB_MOTION || &device->pointer_focus->base != drag->source || device->grab_time != drag->time) return; p = wl_array_add(&drag->types, sizeof *p); if (p) *p = strdup(type); if (!p || !*p) wl_client_post_event(client, (struct wl_object *) display, WL_DISPLAY_NO_MEMORY); } static void drag_activate(struct wl_client *client, struct wl_drag *drag) { struct wlsc_input_device *device = (struct wlsc_input_device *) drag->input_device; struct wlsc_surface *surface; int32_t sx, sy; if (drag->source == NULL || drag->source->client != client || device->grab != WLSC_DEVICE_GRAB_MOTION || &device->pointer_focus->base != drag->source || device->grab_time != drag->time) return; wlsc_input_device_start_grab(device, drag->time, WLSC_DEVICE_GRAB_DRAG); surface = pick_surface(device, &sx, &sy); wl_drag_set_pointer_focus(&device->drag, surface, drag->time, device->x, device->y, sx, sy); } static void drag_cancel(struct wl_client *client, struct wl_drag *drag) { struct wlsc_input_device *device = (struct wlsc_input_device *) drag->input_device; if (drag->source == NULL || drag->source->client != client || device->grab != WLSC_DEVICE_GRAB_DRAG) return; wlsc_input_device_end_grab(device, get_time()); } static void drag_send(struct wl_client *client, struct wl_drag *drag, struct wl_array *contents) { wl_client_post_event(drag->target, &drag->base, WL_DRAG_DROP, contents); } static void drag_accept(struct wl_client *client, struct wl_drag *drag, const char *type) { char **p, **end; /* If the client responds to drag motion events after the * pointer has left the surface, we just discard the accept * requests. The drag source just won't get the corresponding * 'target' events and the next surface/root will start * sending events. */ if (drag->pointer_focus == NULL) return; /* The accept request may arrive after the pointer has left * the surface that received the drag motion events that * triggered the request. But if the pointer re-enters the * surface (or another surface from the same client) and we * receive the 'accept' requests from the first visit to the * surface later, this check will pass. Then we end up * sending the 'target' event for the old 'accept' requests * events *after* potentially sending 'target' from the root * surface, out of order. So we need to track the time of * pointer_focus and this request needs a time stamp so we can * compare and reject 'accept' requests that are older than * the pointer_focus in timestamp. */ if (drag->pointer_focus->client != client) return; /* FIXME: We need a serial number here to correlate the accept * request with a pointer_focus/motion event. */ drag->target = client; end = drag->types.data + drag->types.size; for (p = drag->types.data; p < end; p++) if (strcmp(*p, type) == 0) drag->type = *p; wl_surface_post_event(drag->source, &drag->base, WL_DRAG_TARGET, drag->type); } static const struct wl_drag_interface drag_interface = { drag_prepare, drag_offer, drag_activate, drag_cancel, drag_send, drag_accept }; static void wl_drag_post_device(struct wl_client *client, struct wl_object *global) { struct wl_drag *drag = container_of(global, struct wl_drag, base); wl_client_post_event(client, global, WL_DRAG_DEVICE, drag->input_device); } static void wl_drag_init(struct wl_drag *drag, struct wl_display *display, struct wl_input_device *input_device) { drag->base.interface = &wl_drag_interface; drag->base.implementation = (void (**)(void)) &drag_interface; wl_display_add_object(display, &drag->base); wl_display_add_global(display, &drag->base, wl_drag_post_device); drag->source = NULL; wl_array_init(&drag->types); drag->input_device = input_device; } void wlsc_input_device_init(struct wlsc_input_device *device, struct wlsc_compositor *ec) { device->base.base.interface = &wl_input_device_interface; device->base.base.implementation = (void (**)(void)) &input_device_interface; wl_display_add_object(ec->wl_display, &device->base.base); wl_display_add_global(ec->wl_display, &device->base.base, NULL); wl_drag_init(&device->drag, ec->wl_display, &device->base); device->x = 100; device->y = 100; device->ec = ec; device->sprite = wlsc_surface_create(ec, &ec->argb_visual, device->x, device->y, 32, 32); device->hotspot_x = 16; device->hotspot_y = 16; device->listener.func = handle_surface_destroy; wl_list_insert(ec->surface_destroy_listener_list.prev, &device->listener.link); wl_list_insert(ec->input_device_list.prev, &device->link); wlsc_input_device_set_pointer_image(device, WLSC_POINTER_LEFT_PTR); } static void wlsc_output_post_geometry(struct wl_client *client, struct wl_object *global) { struct wlsc_output *output = container_of(global, struct wlsc_output, base); wl_client_post_event(client, global, WL_OUTPUT_GEOMETRY, output->width, output->height); } static const char vertex_shader[] = "uniform mat4 proj;\n" "attribute vec4 position;\n" "attribute vec2 texcoord;\n" "varying vec2 v_texcoord;\n" "void main()\n" "{\n" " gl_Position = proj * position;\n" " v_texcoord = texcoord;\n" "}\n"; static const char fragment_shader[] = /* "precision mediump float;\n" */ "varying vec2 v_texcoord;\n" "uniform sampler2D tex;\n" "void main()\n" "{\n" " gl_FragColor = texture2D(tex, v_texcoord)\n;" "}\n"; static int init_shaders(struct wlsc_compositor *ec) { GLuint v, f, program; const char *p; char msg[512]; GLfloat vertices[4 * 5]; GLint status; p = vertex_shader; v = glCreateShader(GL_VERTEX_SHADER); glShaderSource(v, 1, &p, NULL); glCompileShader(v); glGetShaderiv(v, GL_COMPILE_STATUS, &status); if (!status) { glGetShaderInfoLog(v, sizeof msg, NULL, msg); fprintf(stderr, "vertex shader info: %s\n", msg); return -1; } p = fragment_shader; f = glCreateShader(GL_FRAGMENT_SHADER); glShaderSource(f, 1, &p, NULL); glCompileShader(f); glGetShaderiv(f, GL_COMPILE_STATUS, &status); if (!status) { glGetShaderInfoLog(f, sizeof msg, NULL, msg); fprintf(stderr, "fragment shader info: %s\n", msg); return -1; } program = glCreateProgram(); glAttachShader(program, v); glAttachShader(program, f); glBindAttribLocation(program, 0, "position"); glBindAttribLocation(program, 1, "texcoord"); glLinkProgram(program); glGetProgramiv(program, GL_LINK_STATUS, &status); if (!status) { glGetProgramInfoLog(program, sizeof msg, NULL, msg); fprintf(stderr, "link info: %s\n", msg); return -1; } glUseProgram(program); ec->proj_uniform = glGetUniformLocation(program, "proj"); ec->tex_uniform = glGetUniformLocation(program, "tex"); vertices[ 0] = 0.0; vertices[ 1] = 0.0; vertices[ 2] = 0.0; vertices[ 3] = 0.0; vertices[ 4] = 0.0; vertices[ 5] = 0.0; vertices[ 6] = 1.0; vertices[ 7] = 0.0; vertices[ 8] = 0.0; vertices[ 9] = 1.0; vertices[10] = 1.0; vertices[11] = 0.0; vertices[12] = 0.0; vertices[13] = 1.0; vertices[14] = 0.0; vertices[15] = 1.0; vertices[16] = 1.0; vertices[17] = 0.0; vertices[18] = 1.0; vertices[19] = 1.0; glGenBuffers(1, &ec->vbo); glBindBuffer(GL_ARRAY_BUFFER, ec->vbo); glBufferData(GL_ARRAY_BUFFER, sizeof vertices, vertices, GL_STATIC_DRAW); return 0; } static const struct wl_interface visual_interface = { "visual", 1, }; static void add_visuals(struct wlsc_compositor *ec) { ec->argb_visual.base.interface = &visual_interface; ec->argb_visual.base.implementation = NULL; wl_display_add_object(ec->wl_display, &ec->argb_visual.base); wl_display_add_global(ec->wl_display, &ec->argb_visual.base, NULL); ec->premultiplied_argb_visual.base.interface = &visual_interface; ec->premultiplied_argb_visual.base.implementation = NULL; wl_display_add_object(ec->wl_display, &ec->premultiplied_argb_visual.base); wl_display_add_global(ec->wl_display, &ec->premultiplied_argb_visual.base, NULL); ec->rgb_visual.base.interface = &visual_interface; ec->rgb_visual.base.implementation = NULL; wl_display_add_object(ec->wl_display, &ec->rgb_visual.base); wl_display_add_global(ec->wl_display, &ec->rgb_visual.base, NULL); } void wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c, int x, int y, int width, int height) { output->compositor = c; output->x = x; output->y = y; output->width = width; output->height = height; output->background = background_create(output, option_background); wlsc_matrix_init(&output->matrix); wlsc_matrix_translate(&output->matrix, -output->x - output->width / 2.0, -output->y - output->height / 2.0, 0); wlsc_matrix_scale(&output->matrix, 2.0 / output->width, 2.0 / output->height, 1); output->base.interface = &wl_output_interface; wl_display_add_object(c->wl_display, &output->base); wl_display_add_global(c->wl_display, &output->base, wlsc_output_post_geometry); } int wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display) { struct wl_event_loop *loop; ec->wl_display = display; wl_display_set_compositor(display, &ec->base, &compositor_interface); ec->shell.base.interface = &wl_shell_interface; ec->shell.base.implementation = (void (**)(void)) &shell_interface; wl_display_add_object(display, &ec->shell.base); if (wl_display_add_global(display, &ec->shell.base, NULL)) return -1; add_visuals(ec); wl_list_init(&ec->surface_list); wl_list_init(&ec->input_device_list); wl_list_init(&ec->output_list); wl_list_init(&ec->surface_destroy_listener_list); create_pointer_images(ec); screenshooter_create(ec); glGenFramebuffers(1, &ec->fbo); glBindFramebuffer(GL_FRAMEBUFFER, ec->fbo); glActiveTexture(GL_TEXTURE0); if (init_shaders(ec) < 0) return -1; loop = wl_display_get_event_loop(ec->wl_display); ec->timer_source = wl_event_loop_add_timer(loop, repaint, ec); wlsc_compositor_schedule_repaint(ec); return 0; } /* The plan here is to generate a random anonymous socket name and * advertise that through a service on the session dbus. */ static const char socket_name[] = "\0wayland"; int main(int argc, char *argv[]) { struct wl_display *display; struct wlsc_compositor *ec; GError *error = NULL; GOptionContext *context; g_type_init(); /* GdkPixbuf needs this, it seems. */ context = g_option_context_new(NULL); g_option_context_add_main_entries(context, option_entries, "Wayland"); if (!g_option_context_parse(context, &argc, &argv, &error)) { fprintf(stderr, "option parsing failed: %s\n", error->message); exit(EXIT_FAILURE); } display = wl_display_create(); if (getenv("DISPLAY")) ec = x11_compositor_create(display); else ec = drm_compositor_create(display); if (ec == NULL) { fprintf(stderr, "failed to create compositor\n"); exit(EXIT_FAILURE); } if (wl_display_add_socket(display, socket_name, sizeof socket_name)) { fprintf(stderr, "failed to add socket: %m\n"); exit(EXIT_FAILURE); } wl_display_run(display); return 0; }