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mutter-performance-source/examples/cogland.c
Neil Roberts 7b645d51cc cogland: Use wl_resource_get_user_data instead of resource->data 
wl_resource may become an opaque type in future so we should probably
be using the accessors instead of directly prodding into the struct.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 8ab07725734b8b2151470cc44bb3f88798ac5538)
2013-07-04 11:50:31 +01:00

1252 lines
34 KiB
C
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#include <cogl/cogl.h>
#include <cogl/cogl-wayland-server.h>
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <string.h>
#include <wayland-server.h>
typedef struct _CoglandCompositor CoglandCompositor;
typedef struct
{
int x1, y1, x2, y2;
} CoglandRegion;
typedef struct
{
struct wl_resource *resource;
CoglandRegion region;
} CoglandSharedRegion;
typedef struct
{
struct wl_resource *resource;
struct wl_signal destroy_signal;
struct wl_listener destroy_listener;
union
{
struct wl_shm_buffer *shm_buffer;
struct wl_buffer *legacy_buffer;
};
int32_t width, height;
uint32_t busy_count;
} CoglandBuffer;
typedef struct
{
CoglandBuffer *buffer;
struct wl_listener destroy_listener;
} CoglandBufferReference;
typedef struct
{
CoglandCompositor *compositor;
struct wl_resource *resource;
int x;
int y;
CoglandBufferReference buffer_ref;
CoglTexture2D *texture;
CoglBool has_shell_surface;
struct wl_signal destroy_signal;
/* All the pending state, that wl_surface.commit will apply. */
struct
{
/* wl_surface.attach */
CoglBool newly_attached;
CoglandBuffer *buffer;
struct wl_listener buffer_destroy_listener;
int32_t sx;
int32_t sy;
/* wl_surface.damage */
CoglandRegion damage;
/* wl_surface.frame */
struct wl_list frame_callback_list;
} pending;
} CoglandSurface;
typedef struct
{
CoglandSurface *surface;
struct wl_resource *resource;
struct wl_listener surface_destroy_listener;
} CoglandShellSurface;
typedef struct
{
uint32_t flags;
int width;
int height;
int refresh;
} CoglandMode;
typedef struct
{
struct wl_object wayland_output;
int32_t x;
int32_t y;
int32_t width_mm;
int32_t height_mm;
CoglOnscreen *onscreen;
GList *modes;
} CoglandOutput;
typedef struct
{
GSource source;
GPollFD pfd;
struct wl_display *display;
} WaylandEventSource;
struct _CoglandCompositor
{
struct wl_display *wayland_display;
struct wl_event_loop *wayland_loop;
CoglContext *cogl_context;
int virtual_width;
int virtual_height;
GList *outputs;
struct wl_list frame_callbacks;
CoglPrimitive *triangle;
CoglPipeline *triangle_pipeline;
GSource *wayland_event_source;
GList *surfaces;
unsigned int redraw_idle;
};
static CoglBool option_multiple_outputs = FALSE;
static GOptionEntry
options[] =
{
{
"multiple", 'm', 0, G_OPTION_ARG_NONE, &option_multiple_outputs,
"Split the compositor into four outputs", NULL
},
{ NULL, 0, 0, 0, NULL, NULL, NULL }
};
static CoglBool
process_arguments (int *argc, char ***argv,
GError **error)
{
GOptionContext *context;
CoglBool ret;
GOptionGroup *group;
group = g_option_group_new (NULL, /* name */
NULL, /* description */
NULL, /* help_description */
NULL, /* user_data */
NULL /* destroy notify */);
g_option_group_add_entries (group, options);
context = g_option_context_new ("- An example Wayland compositor using Cogl");
g_option_context_set_main_group (context, group);
ret = g_option_context_parse (context, argc, argv, error);
g_option_context_free (context);
if (ret && *argc > 1)
{
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_UNKNOWN_OPTION,
"Unknown option '%s'", (* argv)[1]);
ret = FALSE;
}
return ret;
}
static uint32_t
get_time (void)
{
struct timeval tv;
gettimeofday (&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
static void
region_init (CoglandRegion *region)
{
memset (region, 0, sizeof (*region));
}
static CoglBool
region_is_empty (const CoglandRegion *region)
{
return region->x1 == region->x2 || region->y1 == region->y2;
}
static void
region_add (CoglandRegion *region,
int x,
int y,
int w,
int h)
{
if (region_is_empty (region))
{
region->x1 = x;
region->y1 = y;
region->x2 = x + w;
region->y2 = y + h;
}
else
{
if (x < region->x1)
region->x1 = x;
if (y < region->y1)
region->y1 = y;
if (x + w > region->x2)
region->x2 = x + w;
if (y + h > region->y2)
region->y2 = y + h;
}
}
static void
region_subtract (CoglandRegion *region,
int x,
int y,
int w,
int h)
{
/* FIXME */
}
static CoglBool
wayland_event_source_prepare (GSource *base, int *timeout)
{
WaylandEventSource *source = (WaylandEventSource *)base;
*timeout = -1;
wl_display_flush_clients (source->display);
return FALSE;
}
static CoglBool
wayland_event_source_check (GSource *base)
{
WaylandEventSource *source = (WaylandEventSource *)base;
return source->pfd.revents;
}
static CoglBool
wayland_event_source_dispatch (GSource *base,
GSourceFunc callback,
void *data)
{
WaylandEventSource *source = (WaylandEventSource *)base;
struct wl_event_loop *loop = wl_display_get_event_loop (source->display);
wl_event_loop_dispatch (loop, 0);
return TRUE;
}
static GSourceFuncs wayland_event_source_funcs =
{
wayland_event_source_prepare,
wayland_event_source_check,
wayland_event_source_dispatch,
NULL
};
static GSource *
wayland_event_source_new (struct wl_display *display)
{
WaylandEventSource *source;
struct wl_event_loop *loop =
wl_display_get_event_loop (display);
source = (WaylandEventSource *) g_source_new (&wayland_event_source_funcs,
sizeof (WaylandEventSource));
source->display = display;
source->pfd.fd = wl_event_loop_get_fd (loop);
source->pfd.events = G_IO_IN | G_IO_ERR;
g_source_add_poll (&source->source, &source->pfd);
return &source->source;
}
static void
cogland_buffer_destroy_handler (struct wl_listener *listener,
void *data)
{
CoglandBuffer *buffer = wl_container_of (listener, buffer, destroy_listener);
wl_signal_emit (&buffer->destroy_signal, buffer);
g_slice_free (CoglandBuffer, buffer);
}
static CoglandBuffer *
cogland_buffer_from_resource (struct wl_resource *resource)
{
CoglandBuffer *buffer;
struct wl_listener *listener;
listener = wl_resource_get_destroy_listener (resource,
cogland_buffer_destroy_handler);
if (listener)
{
buffer = wl_container_of (listener, buffer, destroy_listener);
}
else
{
buffer = g_slice_new0 (CoglandBuffer);
buffer->resource = resource;
wl_signal_init (&buffer->destroy_signal);
buffer->destroy_listener.notify = cogland_buffer_destroy_handler;
wl_resource_add_destroy_listener (resource, &buffer->destroy_listener);
}
return buffer;
}
static void
cogland_buffer_reference_handle_destroy (struct wl_listener *listener,
void *data)
{
CoglandBufferReference *ref =
wl_container_of (listener, ref, destroy_listener);
g_assert (data == ref->buffer);
ref->buffer = NULL;
}
static void
cogland_buffer_reference (CoglandBufferReference *ref,
CoglandBuffer *buffer)
{
if (ref->buffer && buffer != ref->buffer)
{
ref->buffer->busy_count--;
if (ref->buffer->busy_count == 0)
{
g_assert (wl_resource_get_client (ref->buffer->resource));
wl_resource_queue_event (ref->buffer->resource, WL_BUFFER_RELEASE);
}
wl_list_remove (&ref->destroy_listener.link);
}
if (buffer && buffer != ref->buffer)
{
buffer->busy_count++;
wl_signal_add (&buffer->destroy_signal, &ref->destroy_listener);
}
ref->buffer = buffer;
ref->destroy_listener.notify = cogland_buffer_reference_handle_destroy;
}
typedef struct _CoglandFrameCallback
{
struct wl_list link;
/* Pointer back to the compositor */
CoglandCompositor *compositor;
struct wl_resource *resource;
} CoglandFrameCallback;
static CoglBool
paint_cb (void *user_data)
{
CoglandCompositor *compositor = user_data;
GList *l;
for (l = compositor->outputs; l; l = l->next)
{
CoglandOutput *output = l->data;
CoglFramebuffer *fb = COGL_FRAMEBUFFER (output->onscreen);
GList *l2;
cogl_push_framebuffer (fb);
cogl_framebuffer_clear4f (fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
cogl_framebuffer_draw_primitive (fb, compositor->triangle_pipeline,
compositor->triangle);
for (l2 = compositor->surfaces; l2; l2 = l2->next)
{
CoglandSurface *surface = l2->data;
if (surface->texture)
{
CoglTexture2D *texture = surface->texture;
cogl_set_source_texture (COGL_TEXTURE (texture));
cogl_rectangle (-1, 1, 1, -1);
}
}
cogl_onscreen_swap_buffers (COGL_ONSCREEN (fb));
cogl_pop_framebuffer ();
}
while (!wl_list_empty (&compositor->frame_callbacks))
{
CoglandFrameCallback *callback =
wl_container_of (compositor->frame_callbacks.next, callback, link);
wl_callback_send_done (callback->resource, get_time ());
wl_resource_destroy (callback->resource);
}
compositor->redraw_idle = 0;
return G_SOURCE_REMOVE;
}
static void
cogland_queue_redraw (CoglandCompositor *compositor)
{
if (compositor->redraw_idle == 0)
compositor->redraw_idle = g_idle_add (paint_cb, compositor);
}
static void
surface_damaged (CoglandSurface *surface,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
if (surface->buffer_ref.buffer &&
surface->texture)
{
struct wl_shm_buffer *shm_buffer =
wl_shm_buffer_get (surface->buffer_ref.buffer->resource);
if (shm_buffer)
{
CoglPixelFormat format;
int stride = wl_shm_buffer_get_stride (shm_buffer);
const uint8_t *data = wl_shm_buffer_get_data (shm_buffer);
switch (wl_shm_buffer_get_format (shm_buffer))
{
#if G_BYTE_ORDER == G_BIG_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888;
break;
#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888;
break;
#endif
default:
g_warn_if_reached ();
format = COGL_PIXEL_FORMAT_ARGB_8888;
}
cogl_texture_set_region (COGL_TEXTURE (surface->texture),
x, y, /* src_x/y */
x, y, /* dst_x/y */
width, height, /* dst_width/height */
width, height, /* width/height */
format,
stride,
data);
}
}
cogland_queue_redraw (surface->compositor);
}
static void
cogland_surface_destroy (struct wl_client *wayland_client,
struct wl_resource *wayland_resource)
{
wl_resource_destroy (wayland_resource);
}
static void
cogland_surface_attach (struct wl_client *wayland_client,
struct wl_resource *wayland_surface_resource,
struct wl_resource *wayland_buffer_resource,
int32_t sx, int32_t sy)
{
CoglandSurface *surface =
wl_resource_get_user_data (wayland_surface_resource);
CoglandBuffer *buffer;
if (wayland_buffer_resource)
buffer = cogland_buffer_from_resource (wayland_buffer_resource);
else
buffer = NULL;
/* Attach without commit in between does not went wl_buffer.release */
if (surface->pending.buffer)
wl_list_remove (&surface->pending.buffer_destroy_listener.link);
surface->pending.sx = sx;
surface->pending.sy = sy;
surface->pending.buffer = buffer;
surface->pending.newly_attached = TRUE;
if (buffer)
wl_signal_add (&buffer->destroy_signal,
&surface->pending.buffer_destroy_listener);
}
static void
cogland_surface_damage (struct wl_client *client,
struct wl_resource *resource,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
CoglandSurface *surface = wl_resource_get_user_data (resource);
region_add (&surface->pending.damage, x, y, width, height);
}
static void
destroy_frame_callback (struct wl_resource *callback_resource)
{
CoglandFrameCallback *callback =
wl_resource_get_user_data (callback_resource);
wl_list_remove (&callback->link);
g_slice_free (CoglandFrameCallback, callback);
}
static void
cogland_surface_frame (struct wl_client *client,
struct wl_resource *surface_resource,
uint32_t callback_id)
{
CoglandFrameCallback *callback;
CoglandSurface *surface = wl_resource_get_user_data (surface_resource);
callback = g_slice_new0 (CoglandFrameCallback);
callback->compositor = surface->compositor;
callback->resource = wl_client_add_object (client,
&wl_callback_interface,
NULL, /* no implementation */
callback_id,
callback);
wl_resource_set_destructor (callback->resource, destroy_frame_callback);
wl_list_insert (surface->pending.frame_callback_list.prev, &callback->link);
}
static void
cogland_surface_set_opaque_region (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *region)
{
}
static void
cogland_surface_set_input_region (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *region)
{
}
static void
cogland_surface_commit (struct wl_client *client,
struct wl_resource *resource)
{
CoglandSurface *surface = wl_resource_get_user_data (resource);
CoglandCompositor *compositor = surface->compositor;
/* wl_surface.attach */
if (surface->pending.newly_attached &&
surface->buffer_ref.buffer != surface->pending.buffer)
{
CoglError *error = NULL;
if (surface->texture)
{
cogl_object_unref (surface->texture);
surface->texture = NULL;
}
cogland_buffer_reference (&surface->buffer_ref, surface->pending.buffer);
if (surface->pending.buffer)
{
struct wl_resource *buffer_resource =
surface->pending.buffer->resource;
surface->texture =
cogl_wayland_texture_2d_new_from_buffer (compositor->cogl_context,
buffer_resource,
&error);
if (!surface->texture)
{
g_error ("Failed to create texture_2d from wayland buffer: %s",
error->message);
cogl_error_free (error);
}
}
}
if (surface->pending.buffer)
{
wl_list_remove (&surface->pending.buffer_destroy_listener.link);
surface->pending.buffer = NULL;
}
surface->pending.sx = 0;
surface->pending.sy = 0;
surface->pending.newly_attached = FALSE;
/* wl_surface.damage */
if (surface->buffer_ref.buffer &&
surface->texture &&
!region_is_empty (&surface->pending.damage))
{
CoglandRegion *region = &surface->pending.damage;
CoglTexture *texture = COGL_TEXTURE (surface->texture);
if (region->x2 > cogl_texture_get_width (texture))
region->x2 = cogl_texture_get_width (texture);
if (region->y2 > cogl_texture_get_height (texture))
region->y2 = cogl_texture_get_height (texture);
if (region->x1 < 0)
region->x1 = 0;
if (region->y1 < 0)
region->y1 = 0;
surface_damaged (surface,
region->x1,
region->y1,
region->x2 - region->x1,
region->y2 - region->y1);
}
region_init (&surface->pending.damage);
/* wl_surface.frame */
wl_list_insert_list (&compositor->frame_callbacks,
&surface->pending.frame_callback_list);
wl_list_init (&surface->pending.frame_callback_list);
}
static void
cogland_surface_set_buffer_transform (struct wl_client *client,
struct wl_resource *resource,
int32_t transform)
{
}
const struct wl_surface_interface cogland_surface_interface = {
cogland_surface_destroy,
cogland_surface_attach,
cogland_surface_damage,
cogland_surface_frame,
cogland_surface_set_opaque_region,
cogland_surface_set_input_region,
cogland_surface_commit,
cogland_surface_set_buffer_transform
};
static void
cogland_surface_free (CoglandSurface *surface)
{
CoglandCompositor *compositor = surface->compositor;
CoglandFrameCallback *cb, *next;
wl_signal_emit (&surface->destroy_signal, &surface->resource);
compositor->surfaces = g_list_remove (compositor->surfaces, surface);
cogland_buffer_reference (&surface->buffer_ref, NULL);
if (surface->texture)
cogl_object_unref (surface->texture);
if (surface->pending.buffer)
wl_list_remove (&surface->pending.buffer_destroy_listener.link);
wl_list_for_each_safe (cb, next,
&surface->pending.frame_callback_list, link)
wl_resource_destroy (cb->resource);
g_slice_free (CoglandSurface, surface);
cogland_queue_redraw (compositor);
}
static void
cogland_surface_resource_destroy_cb (struct wl_resource *resource)
{
CoglandSurface *surface = wl_resource_get_user_data (resource);
cogland_surface_free (surface);
}
static void
surface_handle_pending_buffer_destroy (struct wl_listener *listener,
void *data)
{
CoglandSurface *surface =
wl_container_of (listener, surface, pending.buffer_destroy_listener);
surface->pending.buffer = NULL;
}
static void
cogland_compositor_create_surface (struct wl_client *wayland_client,
struct wl_resource *wayland_compositor_resource,
uint32_t id)
{
CoglandCompositor *compositor =
wl_resource_get_user_data (wayland_compositor_resource);
CoglandSurface *surface = g_slice_new0 (CoglandSurface);
surface->compositor = compositor;
wl_signal_init (&surface->destroy_signal);
surface->resource = wl_client_add_object (wayland_client,
&wl_surface_interface,
&cogland_surface_interface,
id,
surface);
wl_resource_set_destructor (surface->resource,
cogland_surface_resource_destroy_cb);
surface->pending.buffer_destroy_listener.notify =
surface_handle_pending_buffer_destroy;
wl_list_init (&surface->pending.frame_callback_list);
region_init (&surface->pending.damage);
compositor->surfaces = g_list_prepend (compositor->surfaces,
surface);
}
static void
cogland_region_destroy (struct wl_client *client,
struct wl_resource *resource)
{
wl_resource_destroy (resource);
}
static void
cogland_region_add (struct wl_client *client,
struct wl_resource *resource,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
CoglandSharedRegion *shared_region = wl_resource_get_user_data (resource);
region_add (&shared_region->region, x, y, width, height);
}
static void
cogland_region_subtract (struct wl_client *client,
struct wl_resource *resource,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
CoglandSharedRegion *shared_region = wl_resource_get_user_data (resource);
region_subtract (&shared_region->region, x, y, width, height);
}
const struct wl_region_interface cogland_region_interface = {
cogland_region_destroy,
cogland_region_add,
cogland_region_subtract
};
static void
cogland_region_resource_destroy_cb (struct wl_resource *resource)
{
CoglandSharedRegion *region = wl_resource_get_user_data (resource);
g_slice_free (CoglandSharedRegion, region);
}
static void
cogland_compositor_create_region (struct wl_client *wayland_client,
struct wl_resource *compositor_resource,
uint32_t id)
{
CoglandSharedRegion *region = g_slice_new0 (CoglandSharedRegion);
region->resource = wl_client_add_object (wayland_client,
&wl_region_interface,
&cogland_region_interface,
id,
region);
wl_resource_set_destructor (region->resource,
cogland_region_resource_destroy_cb);
region_init (&region->region);
}
static void
bind_output (struct wl_client *client,
void *data,
uint32_t version,
uint32_t id)
{
CoglandOutput *output = data;
struct wl_resource *resource =
wl_client_add_object (client, &wl_output_interface, NULL, id, data);
GList *l;
wl_resource_post_event (resource,
WL_OUTPUT_GEOMETRY,
output->x, output->y,
output->width_mm,
output->height_mm,
0, /* subpixel: unknown */
"unknown", /* make */
"unknown"); /* model */
for (l = output->modes; l; l = l->next)
{
CoglandMode *mode = l->data;
wl_resource_post_event (resource,
WL_OUTPUT_MODE,
mode->flags,
mode->width,
mode->height,
mode->refresh);
}
}
static void
dirty_cb (CoglOnscreen *onscreen,
const CoglOnscreenDirtyInfo *info,
void *user_data)
{
CoglandCompositor *compositor = user_data;
cogland_queue_redraw (compositor);
}
static void
cogland_compositor_create_output (CoglandCompositor *compositor,
int x,
int y,
int width_mm,
int height_mm)
{
CoglandOutput *output = g_slice_new0 (CoglandOutput);
CoglFramebuffer *fb;
CoglError *error = NULL;
CoglandMode *mode;
output->x = x;
output->y = y;
output->width_mm = width_mm;
output->height_mm = height_mm;
output->wayland_output.interface = &wl_output_interface;
wl_display_add_global (compositor->wayland_display,
&wl_output_interface,
output,
bind_output);
output->onscreen = cogl_onscreen_new (compositor->cogl_context,
width_mm, height_mm);
/* Eventually there will be an implicit allocate on first use so this
* will become optional... */
fb = COGL_FRAMEBUFFER (output->onscreen);
if (!cogl_framebuffer_allocate (fb, &error))
g_error ("Failed to allocate framebuffer: %s\n", error->message);
cogl_onscreen_add_dirty_callback (output->onscreen,
dirty_cb,
compositor,
NULL /* destroy */);
cogl_onscreen_show (output->onscreen);
cogl_framebuffer_set_viewport (fb, -x, -y,
compositor->virtual_width,
compositor->virtual_height);
mode = g_slice_new0 (CoglandMode);
mode->flags = 0;
mode->width = width_mm;
mode->height = height_mm;
mode->refresh = 60;
output->modes = g_list_prepend (output->modes, mode);
compositor->outputs = g_list_prepend (compositor->outputs, output);
}
const static struct wl_compositor_interface cogland_compositor_interface =
{
cogland_compositor_create_surface,
cogland_compositor_create_region
};
static void
compositor_bind (struct wl_client *client,
void *data,
uint32_t version,
uint32_t id)
{
CoglandCompositor *compositor = data;
wl_client_add_object (client, &wl_compositor_interface,
&cogland_compositor_interface, id, compositor);
}
static void
shell_surface_pong (struct wl_client *client,
struct wl_resource *resource,
uint32_t serial)
{
}
static void
shell_surface_move (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *seat,
uint32_t serial)
{
}
static void
shell_surface_resize (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *seat,
uint32_t serial,
uint32_t edges)
{
}
static void
shell_surface_set_toplevel (struct wl_client *client,
struct wl_resource *resource)
{
}
static void
shell_surface_set_transient (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *parent,
int32_t x,
int32_t y,
uint32_t flags)
{
}
static void
shell_surface_set_fullscreen (struct wl_client *client,
struct wl_resource *resource,
uint32_t method,
uint32_t framerate,
struct wl_resource *output)
{
}
static void
shell_surface_set_popup (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *seat,
uint32_t serial,
struct wl_resource *parent,
int32_t x,
int32_t y,
uint32_t flags)
{
}
static void
shell_surface_set_maximized (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *output)
{
}
static void
shell_surface_set_title (struct wl_client *client,
struct wl_resource *resource,
const char *title)
{
}
static void
shell_surface_set_class (struct wl_client *client,
struct wl_resource *resource,
const char *class_)
{
}
static const struct wl_shell_surface_interface cogl_shell_surface_interface =
{
shell_surface_pong,
shell_surface_move,
shell_surface_resize,
shell_surface_set_toplevel,
shell_surface_set_transient,
shell_surface_set_fullscreen,
shell_surface_set_popup,
shell_surface_set_maximized,
shell_surface_set_title,
shell_surface_set_class
};
static void
destroy_shell_surface (CoglandShellSurface *shell_surface)
{
/* In case cleaning up a dead client destroys shell_surface first */
if (shell_surface->surface)
{
wl_list_remove (&shell_surface->surface_destroy_listener.link);
shell_surface->surface->has_shell_surface = FALSE;
}
g_free (shell_surface);
}
static void
destroy_shell_surface_cb (struct wl_resource *resource)
{
destroy_shell_surface (wl_resource_get_user_data (resource));
}
static void
shell_handle_surface_destroy (struct wl_listener *listener,
void *data)
{
CoglandShellSurface *shell_surface =
wl_container_of (listener, shell_surface, surface_destroy_listener);
shell_surface->surface->has_shell_surface = FALSE;
shell_surface->surface = NULL;
if (shell_surface->resource)
wl_resource_destroy (shell_surface->resource);
else
destroy_shell_surface (shell_surface);
}
static void
get_shell_surface (struct wl_client *client,
struct wl_resource *resource,
uint32_t id,
struct wl_resource *surface_resource)
{
CoglandSurface *surface = wl_resource_get_user_data (surface_resource);
CoglandShellSurface *shell_surface;
if (surface->has_shell_surface)
{
wl_resource_post_error (surface_resource,
WL_DISPLAY_ERROR_INVALID_OBJECT,
"wl_shell::get_shell_surface already requested");
return;
}
shell_surface = g_new0 (CoglandShellSurface, 1);
shell_surface->surface = surface;
shell_surface->surface_destroy_listener.notify =
shell_handle_surface_destroy;
wl_signal_add (&surface->destroy_signal,
&shell_surface->surface_destroy_listener);
surface->has_shell_surface = TRUE;
shell_surface->resource = wl_client_add_object (client,
&wl_shell_surface_interface,
&cogl_shell_surface_interface,
id,
shell_surface);
wl_resource_set_destructor (shell_surface->resource,
destroy_shell_surface_cb);
}
static const struct wl_shell_interface cogland_shell_interface =
{
get_shell_surface
};
static void
bind_shell (struct wl_client *client,
void *data,
uint32_t version,
uint32_t id)
{
wl_client_add_object (client, &wl_shell_interface,
&cogland_shell_interface, id, data);
}
static CoglContext *
create_cogl_context (CoglandCompositor *compositor,
CoglBool use_egl_constraint,
CoglError **error)
{
CoglRenderer *renderer = renderer = cogl_renderer_new ();
CoglDisplay *display;
CoglContext *context;
if (use_egl_constraint)
cogl_renderer_add_constraint (renderer, COGL_RENDERER_CONSTRAINT_USES_EGL);
if (!cogl_renderer_connect (renderer, error))
{
cogl_object_unref (renderer);
return NULL;
}
display = cogl_display_new (renderer, NULL);
cogl_wayland_display_set_compositor_display (display,
compositor->wayland_display);
context = cogl_context_new (display, error);
cogl_object_unref (renderer);
cogl_object_unref (display);
return context;
}
int
main (int argc, char **argv)
{
CoglandCompositor compositor;
GMainLoop *loop;
CoglError *error = NULL;
GError *gerror = NULL;
CoglVertexP2C4 triangle_vertices[] = {
{0, 0.7, 0xff, 0x00, 0x00, 0xff},
{-0.7, -0.7, 0x00, 0xff, 0x00, 0xff},
{0.7, -0.7, 0x00, 0x00, 0xff, 0xff}
};
GSource *cogl_source;
if (!process_arguments (&argc, &argv, &gerror))
{
fprintf (stderr, "%s\n", gerror->message);
return EXIT_FAILURE;
}
memset (&compositor, 0, sizeof (compositor));
compositor.wayland_display = wl_display_create ();
if (compositor.wayland_display == NULL)
g_error ("failed to create wayland display");
wl_list_init (&compositor.frame_callbacks);
if (!wl_display_add_global (compositor.wayland_display,
&wl_compositor_interface,
&compositor,
compositor_bind))
g_error ("Failed to register wayland compositor object");
wl_display_init_shm (compositor.wayland_display);
loop = g_main_loop_new (NULL, FALSE);
compositor.wayland_loop =
wl_display_get_event_loop (compositor.wayland_display);
compositor.wayland_event_source =
wayland_event_source_new (compositor.wayland_display);
g_source_attach (compositor.wayland_event_source, NULL);
/* We want Cogl to use an EGL renderer because otherwise it won't
* set up the wl_drm object and only SHM buffers will work. */
compositor.cogl_context =
create_cogl_context (&compositor,
TRUE /* use EGL constraint */,
&error);
if (compositor.cogl_context == NULL)
{
/* If we couldn't get an EGL context then try any type of
* context */
cogl_error_free (error);
error = NULL;
compositor.cogl_context =
create_cogl_context (&compositor,
FALSE, /* don't set EGL constraint */
&error);
if (compositor.cogl_context)
g_warning ("Failed to create context with EGL constraint, "
"falling back");
else
g_error ("Failed to create a Cogl context: %s\n", error->message);
}
compositor.virtual_width = 800;
compositor.virtual_height = 600;
if (option_multiple_outputs)
{
int hw = compositor.virtual_width / 2;
int hh = compositor.virtual_height / 2;
/* Emulate compositing with multiple monitors... */
cogland_compositor_create_output (&compositor, 0, 0, hw, hh);
cogland_compositor_create_output (&compositor, hw, 0, hw, hh);
cogland_compositor_create_output (&compositor, 0, hh, hw, hh);
cogland_compositor_create_output (&compositor, hw, hh, hw, hh);
}
else
{
cogland_compositor_create_output (&compositor,
0, 0,
compositor.virtual_width,
compositor.virtual_height);
}
if (wl_display_add_global (compositor.wayland_display, &wl_shell_interface,
&compositor, bind_shell) == NULL)
g_error ("Failed to register a global shell object");
if (wl_display_add_socket (compositor.wayland_display, "wayland-0"))
g_error ("Failed to create socket");
compositor.triangle = cogl_primitive_new_p2c4 (compositor.cogl_context,
COGL_VERTICES_MODE_TRIANGLES,
3, triangle_vertices);
compositor.triangle_pipeline = cogl_pipeline_new (compositor.cogl_context);
cogl_source = cogl_glib_source_new (compositor.cogl_context,
G_PRIORITY_DEFAULT);
g_source_attach (cogl_source, NULL);
g_main_loop_run (loop);
return 0;
}
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