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#include<stdio.h>
#include<stdlib.h>
#include<stdbool.h>
#include<unistd.h>
#include<string.h>
#include<cairo/cairo.h>
#include<wayland-server.h>
#include<wayland-client.h>
#include<wayland-client-protocol.h>
#include"wlr-layer-shell-unstable-v1-protocol.h"
#include"xdg-output-unstable-v1-protocol.h"
#include"xdg-shell-protocol.h"
#include"wlclock.h"
#include"output.h"
#include"misc.h"
#include"surface.h"
#include"buffer.h"
static uint32_t min (uint32_t a, uint32_t b)
{
return a > b ? b : a;
}
static void layer_surface_handle_configure (void *data,
struct zwlr_layer_surface_v1 *layer_surface, uint32_t serial,
uint32_t w, uint32_t h)
{
struct Wlclock_surface *surface = (struct Wlclock_surface *)data;
clocklog(surface->output->clock, 1,
"[surface] Layer surface configure request: global_name=%d w=%d h=%d serial=%d\n",
surface->output->global_name, w, h, serial);
zwlr_layer_surface_v1_ack_configure(layer_surface, serial);
if ( w > 0 && h > 0 ) /* Try to fit as best as possible. */
surface->size = min(w, h);
surface->configured = true;
update_surface(surface);
}
static void layer_surface_handle_closed (void *data, struct zwlr_layer_surface_v1 *layer_surface)
{
struct Wlclock_surface *surface = (struct Wlclock_surface *)data;
clocklog(surface->output->clock, 1,
"[surface] Layer surface has been closed: global_name=%d\n",
surface->output->global_name);
destroy_surface(surface);
}
const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layer_surface_handle_configure,
.closed = layer_surface_handle_closed
};
static int32_t get_exclusive_zone (struct Wlclock_surface *surface)
{
if ( surface->output->clock->exclusive_zone == 1 )
return surface->size;
return surface->output->clock->exclusive_zone;
}
static void configure_layer_surface (struct Wlclock_surface *surface)
{
struct Wlclock *clock = surface->output->clock;
clocklog(clock, 1, "[surface] Configuring surface: global_name=%d\n",
surface->output->global_name);
zwlr_layer_surface_v1_set_size(surface->layer_surface,
surface->size, surface->size);
zwlr_layer_surface_v1_set_anchor(surface->layer_surface, clock->anchor);
zwlr_layer_surface_v1_set_margin(surface->layer_surface,
clock->margin_top, clock->margin_right,
clock->margin_bottom, clock->margin_left);
zwlr_layer_surface_v1_set_exclusive_zone(surface->layer_surface,
get_exclusive_zone(surface));
if (! clock->input)
{
struct wl_region *region = wl_compositor_create_region(clock->compositor);
wl_surface_set_input_region(surface->surface, region);
wl_region_destroy(region);
}
}
bool create_surface (struct Wlclock_output *output)
{
struct Wlclock *clock = output->clock;
clocklog(clock, 1, "[surface] Creating surface: global_name=%d\n", output->global_name);
struct Wlclock_surface *surface = calloc(1, sizeof(struct Wlclock_surface));
if ( surface == NULL )
{
clocklog(NULL, 0, "ERROR: Could not allocate.\n");
return false;
}
output->surface = surface;
surface->size = clock->size;
surface->output = output;
surface->surface = NULL;
surface->layer_surface = NULL;
surface->configured = false;
if ( NULL == (surface->surface = wl_compositor_create_surface(clock->compositor)) )
{
clocklog(NULL, 0, "ERROR: Compositor did not create wl_surface.\n");
return false;
}
if ( NULL == (surface->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
clock->layer_shell, surface->surface,
output->wl_output, clock->layer,
clock->namespace)) )
{
clocklog(NULL, 0, "ERROR: Compositor did not create layer_surface.\n");
return false;
}
configure_layer_surface(surface);
zwlr_layer_surface_v1_add_listener(surface->layer_surface,
&layer_surface_listener, surface);
wl_surface_commit(surface->surface);
return true;
}
void destroy_surface (struct Wlclock_surface *surface)
{
if ( surface == NULL )
return;
if ( surface->layer_surface != NULL )
zwlr_layer_surface_v1_destroy(surface->layer_surface);
if ( surface->surface != NULL )
wl_surface_destroy(surface->surface);
finish_buffer(&surface->buffers[0]);
finish_buffer(&surface->buffers[1]);
free(surface);
}
void destroy_all_surfaces (struct Wlclock *clock)
{
clocklog(clock, 1, "[surface] Destroying all surfaces.\n");
struct Wlclock_output *op, *tmp;
wl_list_for_each_safe(op, tmp, &clock->outputs, link)
if ( op->surface != NULL )
destroy_surface(op->surface);
}
void update_surface (struct Wlclock_surface *surface)
{
if ( surface == NULL || ! surface->configured )
return;
configure_layer_surface(surface);
// render_surface_frame(surface); // TODO
wl_surface_commit(surface->surface);
}
void update_all_surfaces (struct Wlclock *clock)
{
clocklog(clock, 1, "[surface] Updating all surfaces.\n");
struct Wlclock_output *op, *tmp;
wl_list_for_each_safe(op, tmp, &clock->outputs, link)
if ( op->surface != NULL )
update_surface(op->surface);
}
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