/* * 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. */ #define _GNU_SOURCE #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include "wayland-server.h" #include "compositor.h" /* The plan here is to generate a random anonymous socket name and * advertise that through a service on the session dbus. */ static const char *option_socket_name = NULL; static const char *option_background = "background.jpg"; static const char *option_geometry = "1024x640"; static 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" }, { "geometry", 'g', 0, G_OPTION_ARG_STRING, &option_geometry, "Geometry" }, { "socket", 's', 0, G_OPTION_ARG_STRING, &option_socket_name, "Socket Name" }, { NULL } }; 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, 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; wl_list_init(&surface->surface.destroy_listener_list); wl_list_init(&surface->link); surface->map_type = WLSC_SURFACE_MAP_UNMAPPED; 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 = NULL; 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; } void wlsc_surface_damage_rectangle(struct wlsc_surface *surface, int32_t x, int32_t y, int32_t width, int32_t height) { struct wlsc_compositor *compositor = surface->compositor; pixman_region32_union_rect(&compositor->damage_region, &compositor->damage_region, surface->x + x, surface->y + y, width, height); wlsc_compositor_schedule_repaint(compositor); } void wlsc_surface_damage(struct wlsc_surface *surface) { wlsc_surface_damage_rectangle(surface, 0, 0, surface->width, surface->height); } uint32_t get_time(void) { struct timeval tv; gettimeofday(&tv, NULL); return tv.tv_sec * 1000 + tv.tv_usec / 1000; } static void destroy_surface(struct wl_resource *resource, struct wl_client *client) { struct wlsc_surface *surface = container_of(resource, struct wlsc_surface, surface.resource); struct wl_listener *l, *next; uint32_t time; wlsc_surface_damage(surface); wl_list_remove(&surface->link); glDeleteTextures(1, &surface->texture); time = get_time(); wl_list_for_each_safe(l, next, &surface->surface.destroy_listener_list, link) l->func(l, &surface->surface, time); free(surface); } uint32_t * wlsc_load_image(const char *filename, int width, int height) { GdkPixbuf *pixbuf; GError *error = NULL; int stride, i, n_channels; unsigned char *pixels, *end, *argb_pixels, *s, *d; pixbuf = gdk_pixbuf_new_from_file_at_scale(filename, width, height, FALSE, &error); if (error != NULL) { fprintf(stderr, "failed to load image: %s\n", error->message); g_error_free(error); return NULL; } stride = gdk_pixbuf_get_rowstride(pixbuf); pixels = gdk_pixbuf_get_pixels(pixbuf); n_channels = gdk_pixbuf_get_n_channels(pixbuf); argb_pixels = malloc (height * width * 4); if (argb_pixels == NULL) { g_object_unref(pixbuf); return NULL; } if (n_channels == 4) { for (i = 0; i < height; i++) { s = pixels + i * stride; end = s + width * 4; d = argb_pixels + i * width * 4; while (s < end) { unsigned int t; #define MULT(_d,c,a,t) \ do { t = c * a + 0x7f; _d = ((t >> 8) + t) >> 8; } while (0) MULT(d[0], s[2], s[3], t); MULT(d[1], s[1], s[3], t); MULT(d[2], s[0], s[3], t); d[3] = s[3]; s += 4; d += 4; } } } else if (n_channels == 3) { for (i = 0; i < height; i++) { s = pixels + i * stride; end = s + width * 3; d = argb_pixels + i * width * 4; while (s < end) { d[0] = s[2]; d[1] = s[1]; d[2] = s[0]; d[3] = 0xff; s += 3; d += 4; } } } g_object_unref(pixbuf); return (uint32_t *) argb_pixels; } static void wlsc_buffer_attach(struct wl_buffer *buffer, struct wl_surface *surface) { struct wlsc_surface *es = (struct wlsc_surface *) surface; struct wlsc_compositor *ec = es->compositor; EGLImageKHR *image; if (buffer->attach) { buffer->attach(buffer, surface); } else { image = eglCreateImageKHR(ec->display, ec->context, EGL_WAYLAND_BUFFER_WL, buffer, NULL); glBindTexture(GL_TEXTURE_2D, es->texture); glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image); es->visual = buffer->visual; eglDestroyImageKHR(ec->display, image); } } static struct wl_buffer * create_buffer_from_png(struct wlsc_compositor *ec, const char *filename, int width, int height) { uint32_t *pixels; struct wl_buffer *buffer; pixels = wlsc_load_image(filename, width, height); if(pixels == NULL) return NULL; buffer = ec->create_buffer(ec, width, height, width * 4, &ec->compositor.premultiplied_argb_visual, pixels); free(pixels); return buffer; } 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; const int width = 32, height = 32; count = ARRAY_LENGTH(pointer_images); ec->pointer_buffers = malloc(count * sizeof *ec->pointer_buffers); for (i = 0; i < count; i++) { ec->pointer_buffers[i] = create_buffer_from_png(ec, pointer_images[i].filename, width, height); } } static struct wlsc_surface * background_create(struct wlsc_output *output, const char *filename) { struct wlsc_surface *background; struct wl_buffer *buffer; background = wlsc_surface_create(output->compositor, output->x, output->y, output->width, output->height); if (background == NULL) return NULL; buffer = create_buffer_from_png(output->compositor, filename, output->width, output->height); if (buffer == NULL) { free(background); return NULL; } wlsc_buffer_attach(buffer, &background->surface); return background; } static void wlsc_surface_draw(struct wlsc_surface *es, struct wlsc_output *output, pixman_region32_t *clip) { struct wlsc_compositor *ec = es->compositor; GLfloat *v, inv_width, inv_height; unsigned int *p; pixman_region32_t repaint; pixman_box32_t *rectangles; int i, n; pixman_region32_init_rect(&repaint, es->x, es->y, es->width, es->height); pixman_region32_intersect(&repaint, &repaint, clip); if (!pixman_region32_not_empty(&repaint)) return; if (es->visual == &ec->compositor.argb_visual) { glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); } else if (es->visual == &ec->compositor.premultiplied_argb_visual) { glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); } else { glDisable(GL_BLEND); } rectangles = pixman_region32_rectangles(&repaint, &n); v = wl_array_add(&ec->vertices, n * 16 * sizeof *v); p = wl_array_add(&ec->indices, n * 6 * sizeof *p); inv_width = 1.0 / es->width; inv_height = 1.0 / es->height; for (i = 0; i < n; i++, v += 16, p += 6) { v[ 0] = rectangles[i].x1; v[ 1] = rectangles[i].y1; v[ 2] = (GLfloat) (rectangles[i].x1 - es->x) * inv_width; v[ 3] = (GLfloat) (rectangles[i].y1 - es->y) * inv_height; v[ 4] = rectangles[i].x1; v[ 5] = rectangles[i].y2; v[ 6] = v[ 2]; v[ 7] = (GLfloat) (rectangles[i].y2 - es->y) * inv_height; v[ 8] = rectangles[i].x2; v[ 9] = rectangles[i].y1; v[10] = (GLfloat) (rectangles[i].x2 - es->x) * inv_width; v[11] = v[ 3]; v[12] = rectangles[i].x2; v[13] = rectangles[i].y2; v[14] = v[10]; v[15] = v[ 7]; p[0] = i * 4 + 0; p[1] = i * 4 + 1; p[2] = i * 4 + 2; p[3] = i * 4 + 2; p[4] = i * 4 + 1; p[5] = i * 4 + 3; } glBindTexture(GL_TEXTURE_2D, es->texture); v = ec->vertices.data; glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]); glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]); glEnableVertexAttribArray(0); glEnableVertexAttribArray(1); glDrawElements(GL_TRIANGLES, n * 6, GL_UNSIGNED_INT, ec->indices.data); ec->vertices.size = 0; ec->indices.size = 0; pixman_region32_fini(&repaint); } 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); } 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_output_finish_frame(struct wlsc_output *output, int msecs) { struct wlsc_compositor *compositor = output->compositor; struct wlsc_surface *es; wl_list_for_each(es, &compositor->surface_list, link) { if (es->output == output) { wl_display_post_frame(compositor->wl_display, &es->surface, msecs); } } output->finished = 1; wl_event_source_timer_update(compositor->timer_source, 5); compositor->repaint_on_timeout = 1; } static void wlsc_output_repaint(struct wlsc_output *output) { struct wlsc_compositor *ec = output->compositor; struct wlsc_surface *es; struct wlsc_input_device *eid; pixman_region32_t new_damage, total_damage, repaint; output->prepare_render(output); glViewport(0, 0, output->width, output->height); glUniformMatrix4fv(ec->proj_uniform, 1, GL_FALSE, output->matrix.d); glUniform1i(ec->tex_uniform, 0); pixman_region32_init(&new_damage); pixman_region32_init(&total_damage); pixman_region32_intersect_rect(&new_damage, &ec->damage_region, output->x, output->y, output->width, output->height); pixman_region32_subtract(&ec->damage_region, &ec->damage_region, &new_damage); pixman_region32_union(&total_damage, &new_damage, &output->previous_damage_region); pixman_region32_copy(&output->previous_damage_region, &new_damage); es = container_of(ec->surface_list.next, struct wlsc_surface, link); if (es->map_type == WLSC_SURFACE_MAP_FULLSCREEN && es->fullscreen_output == output) { if (es->width < output->width || es->height < output->height) glClear(GL_COLOR_BUFFER_BIT); wlsc_surface_draw(es, output, &total_damage); } else { wl_list_for_each(es, &ec->surface_list, link) { if (es->visual != &ec->compositor.rgb_visual) continue; pixman_region32_init_rect(&repaint, es->x, es->y, es->width, es->height); wlsc_surface_draw(es, output, &total_damage); pixman_region32_subtract(&total_damage, &total_damage, &repaint); } if (output->background) wlsc_surface_draw(output->background, output, &total_damage); else glClear(GL_COLOR_BUFFER_BIT); wl_list_for_each_reverse(es, &ec->surface_list, link) { if (ec->switcher && ec->switcher->current == es) continue; if (es->visual == &ec->compositor.rgb_visual) { pixman_region32_union_rect(&total_damage, &total_damage, es->x, es->y, es->width, es->height); continue; } wlsc_surface_draw(es, output, &total_damage); } } if (ec->switcher) wlsc_surface_draw(ec->switcher->current, output, &total_damage); if (ec->focus) wl_list_for_each(eid, &ec->input_device_list, link) wlsc_surface_draw(eid->sprite, output, &total_damage); } static void repaint(void *data) { struct wlsc_compositor *ec = data; struct wlsc_output *output; int repainted_all_outputs = 1; wl_list_for_each(output, &ec->output_list, link) { if (!output->repaint_needed) continue; if (!output->finished) { repainted_all_outputs = 0; continue; } wlsc_output_repaint(output); output->finished = 0; output->repaint_needed = 0; output->present(output); } if (repainted_all_outputs) ec->repaint_on_timeout = 0; else wl_event_source_timer_update(ec->timer_source, 1); } void wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor) { struct wlsc_output *output; wl_list_for_each(output, &compositor->output_list, link) output->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->resource, client); } void wlsc_surface_assign_output(struct wlsc_surface *es) { struct wlsc_compositor *ec = es->compositor; struct wlsc_output *output; struct wlsc_output *tmp = es->output; es->output = NULL; wl_list_for_each(output, &ec->output_list, link) { if (output->x < es->x && es->x < output->x + output->width && output->y < es->y && es->y < output->y + output->height) { if (output != tmp) printf("assiging surface %p to output %p\n", es, output); es->output = output; } } if (es->output == NULL) { printf("no output found\n"); es->output = container_of(ec->output_list.next, struct wlsc_output, link); } } static void surface_attach(struct wl_client *client, struct wl_surface *surface, struct wl_buffer *buffer, int32_t x, int32_t y) { struct wlsc_surface *es = (struct wlsc_surface *) surface; /* FIXME: This damages the entire old surface, but we should * really just damage the part that's no longer covered by the * surface. Anything covered by the new surface will be * damaged by the client. */ wlsc_surface_damage(es); wlsc_buffer_attach(buffer, surface); es->buffer = buffer; es->x += x; es->y += y; es->width = buffer->width; es->height = buffer->height; if (x != 0 || y != 0) wlsc_surface_assign_output(es); wlsc_surface_update_matrix(es); } static void surface_map_toplevel(struct wl_client *client, struct wl_surface *surface) { struct wlsc_surface *es = (struct wlsc_surface *) surface; struct wlsc_compositor *ec = es->compositor; switch (es->map_type) { case WLSC_SURFACE_MAP_UNMAPPED: es->x = 10 + random() % 400; es->y = 10 + random() % 400; wlsc_surface_update_matrix(es); /* assign to first output */ es->output = container_of(ec->output_list.next, struct wlsc_output, link); wl_list_insert(&es->compositor->surface_list, &es->link); break; case WLSC_SURFACE_MAP_TOPLEVEL: return; case WLSC_SURFACE_MAP_FULLSCREEN: es->fullscreen_output = NULL; es->x = es->saved_x; es->y = es->saved_y; wlsc_surface_update_matrix(es); break; default: break; } wlsc_surface_damage(es); es->map_type = WLSC_SURFACE_MAP_TOPLEVEL; } static void surface_map_transient(struct wl_client *client, struct wl_surface *surface, struct wl_surface *parent, int x, int y, uint32_t flags) { struct wlsc_surface *es = (struct wlsc_surface *) surface; struct wlsc_surface *pes = (struct wlsc_surface *) parent; switch (es->map_type) { case WLSC_SURFACE_MAP_UNMAPPED: wl_list_insert(&es->compositor->surface_list, &es->link); /* assign to parents output */ es->output = pes->output; break; case WLSC_SURFACE_MAP_FULLSCREEN: es->fullscreen_output = NULL; break; default: break; } es->x = pes->x + x; es->y = pes->y + y; wlsc_surface_update_matrix(es); wlsc_surface_damage(es); es->map_type = WLSC_SURFACE_MAP_TRANSIENT; } static void surface_map_fullscreen(struct wl_client *client, struct wl_surface *surface) { struct wlsc_surface *es = (struct wlsc_surface *) surface; struct wlsc_output *output; /* FIXME: Fullscreen on first output */ /* FIXME: Handle output going away */ output = container_of(es->compositor->output_list.next, struct wlsc_output, link); switch (es->map_type) { case WLSC_SURFACE_MAP_UNMAPPED: es->x = 10 + random() % 400; es->y = 10 + random() % 400; /* assign to first output */ es->output = output; wl_list_insert(&es->compositor->surface_list, &es->link); break; case WLSC_SURFACE_MAP_FULLSCREEN: return; default: break; } es->saved_x = es->x; es->saved_y = es->y; es->x = (output->width - es->width) / 2; es->y = (output->height - es->height) / 2; es->fullscreen_output = output; wlsc_surface_update_matrix(es); wlsc_surface_damage(es); es->map_type = WLSC_SURFACE_MAP_FULLSCREEN; } static void surface_damage(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->buffer->damage(es->buffer, surface, x, y, width, height); wlsc_surface_damage_rectangle(es, x, y, width, height); } const static struct wl_surface_interface surface_interface = { surface_destroy, surface_attach, surface_map_toplevel, surface_map_transient, surface_map_fullscreen, surface_damage }; static void wlsc_input_device_attach(struct wlsc_input_device *device, struct wl_buffer *buffer, int x, int y) { wlsc_surface_damage(device->sprite); wlsc_buffer_attach(buffer, &device->sprite->surface); device->hotspot_x = x; device->hotspot_y = y; device->sprite->x = device->input_device.x - device->hotspot_x; device->sprite->y = device->input_device.y - device->hotspot_y; device->sprite->width = buffer->width; device->sprite->height = buffer->height; wlsc_surface_update_matrix(device->sprite); wlsc_surface_damage(device->sprite); } void wlsc_input_device_set_pointer_image(struct wlsc_input_device *device, enum wlsc_pointer_type type) { struct wlsc_compositor *compositor = (struct wlsc_compositor *) device->input_device.compositor; wlsc_input_device_attach(device, compositor->pointer_buffers[type], pointer_images[type].hotspot_x, pointer_images[type].hotspot_y); } 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, 0, 0, 0, 0); if (surface == NULL) { wl_client_post_no_memory(client); return; } surface->surface.resource.destroy = destroy_surface; surface->surface.resource.object.id = id; surface->surface.resource.object.interface = &wl_surface_interface; surface->surface.resource.object.implementation = (void (**)(void)) &surface_interface; surface->surface.client = client; wl_client_add_resource(client, &surface->surface.resource); } const static struct wl_compositor_interface compositor_interface = { compositor_create_surface, }; 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; } struct wlsc_surface * pick_surface(struct wl_input_device *device, int32_t *sx, int32_t *sy) { struct wlsc_compositor *ec = (struct wlsc_compositor *) device->compositor; 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 motion_grab_motion(struct wl_grab *grab, uint32_t time, int32_t x, int32_t y) { struct wlsc_input_device *device = (struct wlsc_input_device *) grab->input_device; struct wlsc_surface *es = (struct wlsc_surface *) device->input_device.pointer_focus; int32_t sx, sy; wlsc_surface_transform(es, x, y, &sx, &sy); wl_client_post_event(es->surface.client, &device->input_device.object, WL_INPUT_DEVICE_MOTION, time, x, y, sx, sy); } static void motion_grab_button(struct wl_grab *grab, uint32_t time, int32_t button, int32_t state) { wl_client_post_event(grab->input_device->pointer_focus->client, &grab->input_device->object, WL_INPUT_DEVICE_BUTTON, time, button, state); } static void motion_grab_end(struct wl_grab *grab, uint32_t time) { } static const struct wl_grab_interface motion_grab_interface = { motion_grab_motion, motion_grab_button, motion_grab_end }; void notify_motion(struct wl_input_device *device, uint32_t time, int x, int y) { struct wlsc_surface *es; struct wlsc_compositor *ec = (struct wlsc_compositor *) device->compositor; struct wlsc_output *output; const struct wl_grab_interface *interface; struct wlsc_input_device *wd = (struct wlsc_input_device *) device; int32_t sx, sy; int x_valid = 0, y_valid = 0; int min_x = INT_MAX, min_y = INT_MAX, max_x = INT_MIN, max_y = INT_MIN; wl_list_for_each(output, &ec->output_list, link) { if (output->x <= x && x <= output->x + output->width) x_valid = 1; if (output->y <= y && y <= output->y + output->height) y_valid = 1; /* FIXME: calculate this only on output addition/deletion */ if (output->x < min_x) min_x = output->x; if (output->y < min_y) min_y = output->y; if (output->x + output->width > max_x) max_x = output->x + output->width; if (output->y + output->height > max_y) max_y = output->y + output->height; } if (!x_valid) { if (x < min_x) x = min_x; else if (x >= max_x) x = max_x; } if (!y_valid) { if (y < min_y) y = min_y; else if (y >= max_y) y = max_y; } device->x = x; device->y = y; if (device->grab) { interface = device->grab->interface; interface->motion(device->grab, time, x, y); } else { es = pick_surface(device, &sx, &sy); wl_input_device_set_pointer_focus(device, &es->surface, time, x, y, sx, sy); if (es) wl_client_post_event(es->surface.client, &device->object, WL_INPUT_DEVICE_MOTION, time, x, y, sx, sy); } wlsc_surface_damage(wd->sprite); wd->sprite->x = device->x - wd->hotspot_x; wd->sprite->y = device->y - wd->hotspot_y; wlsc_surface_update_matrix(wd->sprite); wlsc_surface_damage(wd->sprite); } void wlsc_surface_activate(struct wlsc_surface *surface, struct wlsc_input_device *device, uint32_t time) { wlsc_surface_raise(surface); if (device->selection) wlsc_selection_set_focus(device->selection, &surface->surface, time); wl_input_device_set_keyboard_focus(&device->input_device, &surface->surface, time); } struct wlsc_binding { uint32_t key; uint32_t button; uint32_t modifier; wlsc_binding_handler_t handler; void *data; struct wl_list link; }; void notify_button(struct wl_input_device *device, uint32_t time, int32_t button, int32_t state) { struct wlsc_input_device *wd = (struct wlsc_input_device *) device; struct wlsc_compositor *compositor = (struct wlsc_compositor *) device->compositor; struct wlsc_binding *b; struct wlsc_surface *surface = (struct wlsc_surface *) device->pointer_focus; if (state && surface && device->grab == NULL) { wlsc_surface_activate(surface, wd, time); wl_input_device_start_grab(device, &device->motion_grab, button, time); } wl_list_for_each(b, &compositor->binding_list, link) { if (b->button == button && b->modifier == wd->modifier_state && state) { b->handler(&wd->input_device, time, 0, button, state, b->data); break; } } if (device->grab) device->grab->interface->button(device->grab, time, button, state); if (!state && device->grab && device->grab_button == button) wl_input_device_end_grab(device, time); } static void terminate_binding(struct wl_input_device *device, uint32_t time, uint32_t key, uint32_t button, uint32_t state, void *data) { struct wlsc_compositor *compositor = data; wl_display_terminate(compositor->wl_display); } struct wlsc_binding * wlsc_compositor_add_binding(struct wlsc_compositor *compositor, uint32_t key, uint32_t button, uint32_t modifier, wlsc_binding_handler_t handler, void *data) { struct wlsc_binding *binding; binding = malloc(sizeof *binding); if (binding == NULL) return NULL; binding->key = key; binding->button = button; binding->modifier = modifier; binding->handler = handler; binding->data = data; wl_list_insert(compositor->binding_list.prev, &binding->link); return binding; } void wlsc_binding_destroy(struct wlsc_binding *binding) { wl_list_remove(&binding->link); free(binding); } static void update_modifier_state(struct wlsc_input_device *device, uint32_t key, uint32_t state) { uint32_t modifier; 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; } void notify_key(struct wl_input_device *device, uint32_t time, uint32_t key, uint32_t state) { struct wlsc_input_device *wd = (struct wlsc_input_device *) device; struct wlsc_compositor *compositor = (struct wlsc_compositor *) device->compositor; uint32_t *k, *end; struct wlsc_binding *b; wl_list_for_each(b, &compositor->binding_list, link) { if (b->key == key && b->modifier == wd->modifier_state && state) { b->handler(&wd->input_device, time, key, 0, state, b->data); break; } } update_modifier_state(wd, key, state); 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_client_post_event(device->keyboard_focus->client, &device->object, WL_INPUT_DEVICE_KEY, time, key, state); } void notify_pointer_focus(struct wl_input_device *device, uint32_t time, struct wlsc_output *output, int32_t x, int32_t y) { struct wlsc_input_device *wd = (struct wlsc_input_device *) device; struct wlsc_compositor *compositor = (struct wlsc_compositor *) device->compositor; struct wlsc_surface *es; int32_t sx, sy; if (output) { device->x = x; device->y = y; es = pick_surface(device, &sx, &sy); wl_input_device_set_pointer_focus(device, &es->surface, time, x, y, sx, sy); compositor->focus = 1; wd->sprite->x = device->x - wd->hotspot_x; wd->sprite->y = device->y - wd->hotspot_y; wlsc_surface_update_matrix(wd->sprite); } else { wl_input_device_set_pointer_focus(device, NULL, time, 0, 0, 0, 0); compositor->focus = 0; } wlsc_surface_damage(wd->sprite); } void notify_keyboard_focus(struct wl_input_device *device, uint32_t time, struct wlsc_output *output, struct wl_array *keys) { struct wlsc_input_device *wd = (struct wlsc_input_device *) device; struct wlsc_compositor *compositor = (struct wlsc_compositor *) device->compositor; struct wlsc_surface *es; uint32_t *k, *end; if (!wl_list_empty(&compositor->surface_list)) es = container_of(compositor->surface_list.next, struct wlsc_surface, link); else es = NULL; if (output) { wl_array_copy(&wd->input_device.keys, keys); wd->modifier_state = 0; end = device->keys.data + device->keys.size; for (k = device->keys.data; k < end; k++) { update_modifier_state(wd, *k, 1); } wl_input_device_set_keyboard_focus(&wd->input_device, &es->surface, time); } else { wd->modifier_state = 0; wl_input_device_set_keyboard_focus(&wd->input_device, NULL, time); } } static void input_device_attach(struct wl_client *client, struct wl_input_device *device_base, uint32_t time, struct wl_buffer *buffer, int32_t x, int32_t y) { struct wlsc_input_device *device = (struct wlsc_input_device *) device_base; if (time < device->input_device.pointer_focus_time) return; if (device->input_device.pointer_focus == NULL) return; if (device->input_device.pointer_focus->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, }; void wlsc_input_device_init(struct wlsc_input_device *device, struct wlsc_compositor *ec) { wl_input_device_init(&device->input_device, &ec->compositor); device->input_device.object.interface = &wl_input_device_interface; device->input_device.object.implementation = (void (**)(void)) &input_device_interface; wl_display_add_object(ec->wl_display, &device->input_device.object); wl_display_add_global(ec->wl_display, &device->input_device.object, NULL); device->sprite = wlsc_surface_create(ec, device->input_device.x, device->input_device.y, 32, 32); device->hotspot_x = 16; device->hotspot_y = 16; device->modifier_state = 0; device->input_device.motion_grab.interface = &motion_grab_interface; 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, object); wl_client_post_event(client, global, WL_OUTPUT_GEOMETRY, output->x, output->y, output->width, output->height); } static const char vertex_shader[] = "uniform mat4 proj;\n" "attribute vec2 position;\n" "attribute vec2 texcoord;\n" "varying vec2 v_texcoord;\n" "void main()\n" "{\n" " gl_Position = proj * vec4(position, 0.0, 1.0);\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]; 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"); return 0; } void wlsc_output_destroy(struct wlsc_output *output) { destroy_surface(&output->background->surface.resource, NULL); } void wlsc_output_move(struct wlsc_output *output, int x, int y) { struct wlsc_compositor *c = output->compositor; int flip; output->x = x; output->y = y; if (output->background) { output->background->x = x; output->background->y = y; wlsc_surface_update_matrix(output->background); } pixman_region32_init(&output->previous_damage_region); wlsc_matrix_init(&output->matrix); wlsc_matrix_translate(&output->matrix, -output->x - output->width / 2.0, -output->y - output->height / 2.0, 0); flip = (output->flags & WL_OUTPUT_FLIPPED) ? -1 : 1; wlsc_matrix_scale(&output->matrix, 2.0 / output->width, flip * 2.0 / output->height, 1); pixman_region32_union_rect(&c->damage_region, &c->damage_region, x, y, output->width, output->height); } void wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c, int x, int y, int width, int height, uint32_t flags) { output->compositor = c; output->x = x; output->y = y; output->width = width; output->height = height; output->background = background_create(output, option_background); output->flags = flags; output->finished = 1; wlsc_output_move(output, x, y); output->object.interface = &wl_output_interface; wl_display_add_object(c->wl_display, &output->object); wl_display_add_global(c->wl_display, &output->object, wlsc_output_post_geometry); } int wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display) { struct wl_event_loop *loop; const char *extensions; ec->wl_display = display; wl_compositor_init(&ec->compositor, &compositor_interface, display); wlsc_shm_init(ec); eglBindWaylandDisplayWL(ec->display, ec->wl_display); wl_list_init(&ec->surface_list); wl_list_init(&ec->input_device_list); wl_list_init(&ec->output_list); wl_list_init(&ec->binding_list); wlsc_shell_init(ec); wlsc_switcher_init(ec); wlsc_compositor_add_binding(ec, KEY_BACKSPACE, 0, MODIFIER_CTRL | MODIFIER_ALT, terminate_binding, ec); create_pointer_images(ec); screenshooter_create(ec); extensions = (const char *) glGetString(GL_EXTENSIONS); if (!strstr(extensions, "GL_EXT_texture_format_BGRA8888")) { fprintf(stderr, "GL_EXT_texture_format_BGRA8888 not available\n"); return -1; } 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); pixman_region32_init(&ec->damage_region); wlsc_compositor_schedule_repaint(ec); return 0; } static void on_term_signal(int signal_number, void *data) { struct wlsc_compositor *ec = data; wl_display_terminate(ec->wl_display); } int main(int argc, char *argv[]) { struct wl_display *display; struct wlsc_compositor *ec; struct wl_event_loop *loop; GError *error = NULL; GOptionContext *context; int width, height; 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); } if (sscanf(option_geometry, "%dx%d", &width, &height) != 2) { fprintf(stderr, "invalid geometry option: %s \n", option_geometry); exit(EXIT_FAILURE); } display = wl_display_create(); ec = NULL; #if BUILD_WAYLAND_COMPOSITOR if (getenv("WAYLAND_DISPLAY")) ec = wayland_compositor_create(display, width, height); #endif #if BUILD_X11_COMPOSITOR if (ec == NULL && getenv("DISPLAY")) ec = x11_compositor_create(display, width, height); #endif #if BUILD_DRM_COMPOSITOR if (ec == NULL) ec = drm_compositor_create(display, option_connector); #endif if (ec == NULL) { fprintf(stderr, "failed to create compositor\n"); exit(EXIT_FAILURE); } if (wl_display_add_socket(display, option_socket_name)) { fprintf(stderr, "failed to add socket: %m\n"); exit(EXIT_FAILURE); } loop = wl_display_get_event_loop(ec->wl_display); wl_event_loop_add_signal(loop, SIGTERM, on_term_signal, ec); wl_event_loop_add_signal(loop, SIGINT, on_term_signal, ec); wl_display_run(display); eglUnbindWaylandDisplayWL(ec->display, display); wl_display_destroy(display); ec->destroy(ec); return 0; }