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wayland: Port to SHM pool allocation mechanism

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This commit is contained in:
Rob Bradford 2012-07-11 14:31:15 +01:00
parent 3eb0b195ed
commit f20ac38315
1 changed files with 38 additions and 30 deletions
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68
gdk/wayland/gdkwindow-wayland.c
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@ -309,6 +309,7 @@ typedef struct _GdkWaylandCairoSurfaceData {
#else
gpointer buf;
size_t buf_length;
struct wl_shm_pool *pool;
#endif
struct wl_buffer *buffer;
GdkWaylandDisplay *display;
@ -434,16 +435,31 @@ gdk_wayland_create_cairo_surface (GdkWaylandDisplay *display,
return surface;
}
#else
static struct wl_buffer *
create_shm_buffer (struct wl_shm *shm,
int width,
int height,
uint32_t format,
size_t *buf_length,
void **data_out)
static void
gdk_wayland_cairo_surface_destroy (void *p)
{
GdkWaylandCairoSurfaceData *data = p;
if (data->buffer)
wl_buffer_destroy (data->buffer);
if (data->pool)
wl_shm_pool_destroy (data->pool);
munmap (data->buf, data->buf_length);
g_free (data);
}
static struct wl_shm_pool *
_create_shm_pool (struct wl_shm *shm,
int width,
int height,
size_t *buf_length,
void **data_out)
{
char filename[] = "/tmp/wayland-shm-XXXXXX";
struct wl_buffer *buffer;
struct wl_shm_pool *pool;
int fd, size, stride;
void *data;
@ -472,27 +488,14 @@ create_shm_buffer (struct wl_shm *shm,
return NULL;
}
buffer = wl_shm_create_buffer (shm, fd,
width, height,
stride, format);
pool = wl_shm_create_pool(shm, fd, size);
close (fd);
*data_out = data;
*buf_length = size;
return buffer;
}
static void
gdk_wayland_cairo_surface_destroy (void *p)
{
GdkWaylandCairoSurfaceData *data = p;
if (data->buffer)
wl_buffer_destroy (data->buffer);
munmap (data->buf, data->buf_length);
g_free (data);
return pool;
}
static cairo_surface_t *
@ -502,6 +505,7 @@ gdk_wayland_create_cairo_surface (GdkWaylandDisplay *display,
GdkWaylandCairoSurfaceData *data;
cairo_surface_t *surface = NULL;
cairo_status_t status;
int stride;
data = g_new (GdkWaylandCairoSurfaceData, 1);
data->display = display;
@ -509,18 +513,22 @@ gdk_wayland_create_cairo_surface (GdkWaylandDisplay *display,
data->width = width;
data->height = height;
data->buffer = create_shm_buffer (display->shm,
width,
height,
WL_SHM_FORMAT_ARGB8888,
&data->buf_length,
&data->buf);
stride = width * 4;
data->pool = _create_shm_pool (display->shm,
width, height,
&data->buf_length,
&data->buf);
data->buffer = wl_shm_pool_create_buffer (data->pool, 0,
width, height,
stride, WL_SHM_FORMAT_ARGB8888);
surface = cairo_image_surface_create_for_data (data->buf,
CAIRO_FORMAT_ARGB32,
width,
height,
width * 4);
stride);
cairo_surface_set_user_data (surface, &gdk_wayland_cairo_key,
data, gdk_wayland_cairo_surface_destroy);