C++ (Cpp) _cairo_xcb_shm_info_destroy Examples

Example #1

File: cairo-xcb-surface.c Project: ghub/NVprSDK

static cairo_int_status_t
_cairo_xcb_surface_create_shm_image (cairo_xcb_surface_t *target,
				     cairo_image_surface_t **image_out,
				     cairo_xcb_shm_info_t **shm_info_out)
{
    cairo_image_surface_t *image;
    cairo_xcb_shm_info_t *shm_info;
    cairo_status_t status;
    size_t size, stride;

    if ((target->flags & CAIRO_XCB_HAS_SHM) == 0)
	return CAIRO_INT_STATUS_UNSUPPORTED;

    stride = CAIRO_STRIDE_FOR_WIDTH_BPP (target->width,
					 PIXMAN_FORMAT_BPP (target->pixman_format));
    size = stride * target->height;
    if (size < CAIRO_XCB_SHM_SMALL_IMAGE) {
	target->flags &= ~CAIRO_XCB_HAS_SHM;
	return CAIRO_INT_STATUS_UNSUPPORTED;
    }

    status = _cairo_xcb_connection_allocate_shm_info (target->screen->connection,
						      size, &shm_info);
    if (unlikely (status))
	return status;

    image = (cairo_image_surface_t *)
	_cairo_image_surface_create_with_pixman_format (shm_info->mem,
							target->pixman_format,
							target->width,
							target->height,
							stride);
    status = image->base.status;
    if (unlikely (status)) {
	_cairo_xcb_shm_info_destroy (shm_info);
	return status;
    }

    status = _cairo_user_data_array_set_data (&image->base.user_data,
					      (const cairo_user_data_key_t *) target->connection,
					      shm_info,
					      (cairo_destroy_func_t) _cairo_xcb_shm_info_destroy);
    if (unlikely (status)) {
	cairo_surface_destroy (&image->base);
	_cairo_xcb_shm_info_destroy (shm_info);
	return status;
    }

    *image_out = image;
    *shm_info_out = shm_info;
    return CAIRO_STATUS_SUCCESS;
}

Example #2

File: cairo-xcb-surface.c Project: mrobinson/cairo

static cairo_surface_t *
_cairo_xcb_surface_create_shm_image (cairo_xcb_connection_t *connection,
				     pixman_format_code_t pixman_format,
				     int width, int height,
				     cairo_bool_t might_reuse,
				     cairo_xcb_shm_info_t **shm_info_out)
{
    cairo_surface_t *image;
    cairo_xcb_shm_info_t *shm_info;
    cairo_int_status_t status;
    size_t stride;

    *shm_info_out = NULL;

    stride = CAIRO_STRIDE_FOR_WIDTH_BPP (width,
					 PIXMAN_FORMAT_BPP (pixman_format));
    status = _cairo_xcb_connection_allocate_shm_info (connection,
						      stride * height,
						      might_reuse,
						      &shm_info);
    if (unlikely (status)) {
	if (status == CAIRO_INT_STATUS_UNSUPPORTED)
	    return NULL;

	return _cairo_surface_create_in_error (status);
    }

    image = _cairo_image_surface_create_with_pixman_format (shm_info->mem,
							    pixman_format,
							    width, height,
							    stride);
    if (unlikely (image->status)) {
	_cairo_xcb_shm_info_destroy (shm_info);
	return image;
    }

    status = _cairo_user_data_array_set_data (&image->user_data,
					      (const cairo_user_data_key_t *) connection,
					      shm_info,
					      (cairo_destroy_func_t) _cairo_xcb_shm_info_destroy);
    if (unlikely (status)) {
	cairo_surface_destroy (image);
	_cairo_xcb_shm_info_destroy (shm_info);
	return _cairo_surface_create_in_error (status);
    }

    *shm_info_out = shm_info;
    return image;
}

Example #3

File: cairo-xcb-surface.c Project: ghub/NVprSDK

static cairo_status_t
_cairo_xcb_surface_create_similar_shm (cairo_xcb_surface_t *other,
				       pixman_format_code_t pixman_format,
				       int width, int height,
				       cairo_surface_t **out)
{
    size_t size, stride;
    cairo_xcb_shm_info_t *shm_info;
    cairo_status_t status;
    cairo_surface_t *image;

    stride = CAIRO_STRIDE_FOR_WIDTH_BPP (width, PIXMAN_FORMAT_BPP (pixman_format));
    size = stride * height;
    if (size < CAIRO_XCB_SHM_SMALL_IMAGE)
	return CAIRO_INT_STATUS_UNSUPPORTED;

    status = _cairo_xcb_connection_allocate_shm_info (other->connection,
						      size, &shm_info);
    if (unlikely (status))
	return status;

    image = _cairo_image_surface_create_with_pixman_format (shm_info->mem,
							    pixman_format,
							    width, height,
							    stride);
    status = image->status;
    if (unlikely (status)) {
	_cairo_xcb_shm_info_destroy (shm_info);
	return status;
    }

    status = _cairo_user_data_array_set_data (&image->user_data,
					      (const cairo_user_data_key_t *) other->connection,
					      shm_info,
					      (cairo_destroy_func_t) _cairo_xcb_shm_info_destroy);
    if (unlikely (status)) {
	cairo_surface_destroy (image);
	_cairo_xcb_shm_info_destroy (shm_info);
	return status;
    }

    *out = image;
    return CAIRO_STATUS_SUCCESS;
}

Example #4

File: cairo-xcb-surface-core.c Project: ghub/NVprSDK

static cairo_status_t
_cairo_xcb_shm_image_create (cairo_xcb_connection_t *connection,
			     pixman_format_code_t pixman_format,
			     int width, int height,
			     cairo_image_surface_t **image_out,
			     cairo_xcb_shm_info_t **shm_info_out)
{
    cairo_surface_t *image = NULL;
    cairo_xcb_shm_info_t *shm_info = NULL;
    cairo_status_t status;

#if CAIRO_HAS_XCB_SHM_FUNCTIONS
    if ((connection->flags & CAIRO_XCB_HAS_SHM)) {
	size_t size, stride;

	stride = CAIRO_STRIDE_FOR_WIDTH_BPP (width, PIXMAN_FORMAT_BPP (pixman_format));
	size = stride * height;
	if (size > CAIRO_XCB_SHM_SMALL_IMAGE) {
	    status = _cairo_xcb_connection_allocate_shm_info (connection,
							      size, &shm_info);
	    if (unlikely (status))
		return status;

	    image = _cairo_image_surface_create_with_pixman_format (shm_info->mem,
								    pixman_format,
								    width, height,
								    stride);
	    status = image->status;
	    if (unlikely (status)) {
		_cairo_xcb_shm_info_destroy (shm_info);
		return status;
	    }

	    status = _cairo_user_data_array_set_data (&image->user_data,
						      (const cairo_user_data_key_t *) connection,
						      shm_info,
						      (cairo_destroy_func_t) _cairo_xcb_shm_info_destroy);
	    if (unlikely (status)) {
		cairo_surface_destroy (image);
		_cairo_xcb_shm_info_destroy (shm_info);
		return status;
	    }
	}
    }
#endif

    if (image == NULL) {
	image = _cairo_image_surface_create_with_pixman_format (NULL,
								pixman_format,
								width, height,
								0);
	status = image->status;
	if (unlikely (status))
	    return status;
    }


    *image_out = (cairo_image_surface_t *) image;
    *shm_info_out = shm_info;
    return CAIRO_STATUS_SUCCESS;
}