This introduces a basic shared framework for making wayland clients within sway itself.master
Drew DeVault
9 years ago
parent
5c4e98aa4e
commit
bfcabe48ef
@ -0,0 +1,43 @@
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#ifndef _CLIENT_H
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#define _CLIENT_H
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#include <wayland-client.h>
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#include <cairo/cairo.h>
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#include <pango/pangocairo.h>
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#include "list.h"
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struct output_state {
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struct wl_output *output;
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uint32_t flags;
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int width, height;
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};
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struct buffer {
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struct wl_buffer *buffer;
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struct wl_shm_pool *pool;
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uint32_t width, height;
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};
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struct client_state {
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struct wl_compositor *compositor;
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struct wl_display *display;
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struct wl_pointer *pointer;
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struct wl_seat *seat;
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struct wl_shell *shell;
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struct wl_shm *shm;
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struct buffer *buffer;
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struct wl_surface *surface;
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struct wl_shell_surface *shell_surface;
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cairo_t *cairo;
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cairo_surface_t *cairo_surface;
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PangoContext *pango;
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list_t *outputs;
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};
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struct client_state *client_setup(void);
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void client_teardown(struct client_state *state);
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struct buffer *create_memory_pool(struct client_state *state, int32_t width, int32_t height, uint32_t format);
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int client_prerender(struct client_state *state);
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int client_render(struct client_state *state);
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#endif
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@ -0,0 +1,102 @@
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#include "log.h"
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#include "sway.h"
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <libgen.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <signal.h>
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#include <errno.h>
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#include <string.h>
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#include <stringop.h>
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#include <execinfo.h>
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#include "workspace.h"
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extern log_importance_t v;
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/* XXX:DEBUG:XXX */
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static void container_log(const swayc_t *c) {
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fprintf(stderr, "focus:%c|",
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c == get_focused_view(&root_container) ? 'K':
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c == get_focused_container(&root_container) ? 'F' : // Focused
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c == swayc_active_workspace() ? 'W' : // active workspace
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c == &root_container ? 'R' : // root
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'X');// not any others
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fprintf(stderr,"(%p)",c);
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fprintf(stderr,"(p:%p)",c->parent);
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fprintf(stderr,"(f:%p)",c->focused);
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fprintf(stderr,"(h:%ld)",c->handle);
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fprintf(stderr,"Type:");
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fprintf(stderr,
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c->type == C_ROOT ? "Root|" :
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c->type == C_OUTPUT ? "Output|" :
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c->type == C_WORKSPACE ? "Workspace|" :
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c->type == C_CONTAINER ? "Container|" :
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c->type == C_VIEW ? "View|" : "Unknown|");
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fprintf(stderr,"layout:");
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fprintf(stderr,
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c->layout == L_NONE ? "NONE|" :
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c->layout == L_HORIZ ? "Horiz|":
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c->layout == L_VERT ? "Vert|":
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c->layout == L_STACKED ? "Stacked|":
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c->layout == L_FLOATING ? "Floating|":
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"Unknown|");
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fprintf(stderr, "w:%.f|h:%.f|", c->width, c->height);
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fprintf(stderr, "x:%.f|y:%.f|", c->x, c->y);
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fprintf(stderr, "g:%d|",c->gaps);
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fprintf(stderr, "vis:%c|", c->visible?'t':'f');
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fprintf(stderr, "name:%.16s|", c->name);
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fprintf(stderr, "children:%d\n",c->children?c->children->length:0);
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}
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void layout_log(const swayc_t *c, int depth) {
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if (L_DEBUG > v) return;
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int i, d;
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int e = c->children ? c->children->length : 0;
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container_log(c);
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if (e) {
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for (i = 0; i < e; ++i) {
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fputc('|',stderr);
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for (d = 0; d < depth; ++d) fputc('-', stderr);
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layout_log(c->children->items[i], depth + 1);
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}
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}
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if (c->type == C_WORKSPACE) {
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e = c->floating?c->floating->length:0;
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if (e) {
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for (i = 0; i < e; ++i) {
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fputc('|',stderr);
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for (d = 0; d < depth; ++d) fputc('=', stderr);
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layout_log(c->floating->items[i], depth + 1);
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}
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}
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}
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}
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const char *swayc_type_string(enum swayc_types type) {
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return type == C_ROOT ? "ROOT" :
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type == C_OUTPUT ? "OUTPUT" :
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type == C_WORKSPACE ? "WORKSPACE" :
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type == C_CONTAINER ? "CONTAINER" :
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type == C_VIEW ? "VIEW" :
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"UNKNOWN";
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}
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// Like sway_log, but also appends some info about given container to log output.
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void swayc_log(log_importance_t verbosity, swayc_t *cont, const char* format, ...) {
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sway_assert(cont, "swayc_log: no container ...");
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va_list args;
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va_start(args, format);
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char *txt = malloc(128);
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vsprintf(txt, format, args);
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va_end(args);
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char *debug_txt = malloc(32);
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snprintf(debug_txt, 32, "%s '%s'", swayc_type_string(cont->type), cont->name);
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sway_log(verbosity, "%s (%s)", txt, debug_txt);
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free(txt);
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free(debug_txt);
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}
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/* XXX:DEBUG:XXX */
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@ -1,6 +1,27 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <wayland-client.h>
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#include "client.h"
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#include "log.h"
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struct client_state *state;
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void sway_terminate(void) {
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client_teardown(state);
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exit(1);
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}
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int main(int argc, char **argv) {
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printf("Hello world");
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init_log(L_INFO);
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state = client_setup();
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do {
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if (!client_prerender(state)) continue;
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cairo_set_source_rgb(state->cairo, 255, 0, 0);
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cairo_rectangle(state->cairo, 0, 0, 100, 100);
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cairo_fill(state->cairo);
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} while (client_render(state));
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client_teardown(state);
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return 0;
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}
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@ -0,0 +1,192 @@
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#include <wayland-client.h>
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#include <cairo/cairo.h>
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#include <pango/pangocairo.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/mman.h>
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#include "client.h"
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#include "list.h"
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#include "log.h"
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static void display_handle_mode(void *data, struct wl_output *wl_output,
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uint32_t flags, int32_t width, int32_t height, int32_t refresh) {
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struct output_state *state = data;
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if (flags & WL_OUTPUT_MODE_CURRENT) {
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state->flags = flags;
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state->width = width;
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state->height = height;
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}
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}
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static void display_handle_geometry(void *data, struct wl_output *wl_output,
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int32_t x, int32_t y, int32_t physical_width, int32_t physical_height,
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int32_t subpixel, const char *make, const char *model, int32_t transform) {
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// this space intentionally left blank
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}
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static void display_handle_done(void *data, struct wl_output *wl_output) {
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// this space intentionally left blank
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}
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static void display_handle_scale(void *data, struct wl_output *wl_output, int32_t factor) {
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// this space intentionally left blank
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}
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static const struct wl_output_listener output_listener = {
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.mode = display_handle_mode,
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.geometry = display_handle_geometry,
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.done = display_handle_done,
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.scale = display_handle_scale
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};
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static void registry_global(void *data, struct wl_registry *registry,
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uint32_t name, const char *interface, uint32_t version) {
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struct client_state *state = data;
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if (strcmp(interface, wl_compositor_interface.name) == 0) {
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state->compositor = wl_registry_bind(registry, name, &wl_compositor_interface, version);
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} else if (strcmp(interface, wl_shm_interface.name) == 0) {
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state->shm = wl_registry_bind(registry, name, &wl_shm_interface, version);
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} else if (strcmp(interface, wl_shell_interface.name) == 0) {
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state->shell = wl_registry_bind(registry, name, &wl_shell_interface, version);
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} else if (strcmp(interface, wl_seat_interface.name) == 0) {
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state->seat = wl_registry_bind(registry, name, &wl_seat_interface, version);
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state->pointer = wl_seat_get_pointer(state->seat);
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} else if (strcmp(interface, wl_output_interface.name) == 0) {
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struct wl_output *output = wl_registry_bind(registry, name, &wl_output_interface, version);
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struct output_state *ostate = malloc(sizeof(struct output_state));
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ostate->output = output;
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wl_output_add_listener(output, &output_listener, ostate);
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list_add(state->outputs, ostate);
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}
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}
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static void registry_global_remove(void *data, struct wl_registry *registry, uint32_t name) {
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// this space intentionally left blank
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}
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static const struct wl_registry_listener registry_listener = {
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.global = registry_global,
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.global_remove = registry_global_remove
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};
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static int create_pool_file(size_t size) {
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static const char template[] = "/swaybg-XXXXXX";
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const char *path = getenv("XDG_RUNTIME_DIR");
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if (!path) {
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return -1;
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}
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int ts = (path[strlen(path) - 1] == '/');
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char *name = malloc(
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strlen(template) +
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strlen(path) +
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(ts ? 1 : 0) + 1);
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sprintf(name, "%s%s%s", path, ts ? "" : "/", template);
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int fd = mkstemp(name);
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free(name);
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if (fd < 0) {
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return -1;
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}
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if (ftruncate(fd, size) < 0) {
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close(fd);
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return -1;
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}
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return fd;
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}
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struct buffer *create_buffer(struct client_state *state,
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int32_t width, int32_t height, uint32_t format) {
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struct buffer *buf = malloc(sizeof(struct buffer));
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memset(buf, 0, sizeof(struct buffer));
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uint32_t stride = width * 4;
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uint32_t size = stride * height;
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int fd = create_pool_file(size);
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void *data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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buf->pool = wl_shm_create_pool(state->shm, fd, size);
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buf->buffer = wl_shm_pool_create_buffer(buf->pool, 0, width, height, stride, format);
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state->cairo_surface = cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32, width, height, stride);
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state->cairo = cairo_create(state->cairo_surface);
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state->pango = pango_cairo_create_context(state->cairo);
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sway_log(L_INFO, "%p %p", buf->pool, buf->buffer);
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return buf;
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}
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struct client_state *client_setup(void) {
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struct client_state *state = malloc(sizeof(struct client_state));
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memset(state, 0, sizeof(struct client_state));
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state->outputs = create_list();
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state->display = wl_display_connect(NULL);
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if (!state->display) {
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sway_log(L_ERROR, "Error opening display");
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client_teardown(state);
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return NULL;
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}
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struct wl_registry *registry = wl_display_get_registry(state->display);
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wl_registry_add_listener(registry, ®istry_listener, state);
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wl_display_roundtrip(state->display); // globals
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wl_display_roundtrip(state->display); // listeners
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wl_registry_destroy(registry);
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state->buffer = create_buffer(state, 100, 100, WL_SHM_FORMAT_ARGB8888);
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state->surface = wl_compositor_create_surface(state->compositor);
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state->shell_surface = wl_shell_get_shell_surface(state->shell, state->surface);
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wl_shell_surface_set_toplevel(state->shell_surface);
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wl_surface_damage(state->surface, 0, 0, 100, 100);
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wl_surface_attach(state->surface, state->buffer->buffer, 0, 0);
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wl_surface_commit(state->surface);
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return state;
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}
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int client_prerender(struct client_state *state) {
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wl_display_dispatch_pending(state->display);
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if (wl_display_flush(state->display) < 0 && errno != EAGAIN) {
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return 0;
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}
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return 1;
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}
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int client_render(struct client_state *state) {
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return wl_display_dispatch(state->display) != -1;
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}
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void client_teardown(struct client_state *state) {
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if (state->pointer) {
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wl_pointer_destroy(state->pointer);
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}
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if (state->seat) {
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wl_seat_destroy(state->seat);
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}
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if (state->shell) {
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wl_shell_destroy(state->shell);
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}
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if (state->shm) {
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wl_shm_destroy(state->shm);
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}
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if (state->compositor) {
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wl_compositor_destroy(state->compositor);
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}
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if (state->display) {
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wl_display_disconnect(state->display);
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}
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if (state->outputs) {
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// TODO: Free the outputs themselves
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list_free(state->outputs);
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}
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}
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