Imported Debian patch 0.1.0+git20131207+e452e83-0ubuntu12

[deb_libhybris.git] / server_wlegl_buffer.cpp

/*
 * Copyright © 2012 Collabora, Ltd.
 *
 * Permission to use, copy, modify, distribute, and sell this software and
 * its documentation for any purpose is hereby granted without fee, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of the copyright holders not be used in
 * advertising or publicity pertaining to distribution of the software
 * without specific, written prior permission.  The copyright holders make
 * no representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <cstring>
#include <cassert>

#include "server_wlegl_buffer.h"
#include "server_wlegl_private.h"

static void
destroy(struct wl_client *client, struct wl_resource *resource)
{
	wl_resource_destroy(resource);
}

static const struct wl_buffer_interface server_wlegl_buffer_impl = {
	destroy
};

server_wlegl_buffer *
server_wlegl_buffer_from(struct wl_buffer *buffer)
{
	if (buffer->resource.object.implementation !=
	    (void (**)(void)) &server_wlegl_buffer_impl)
		return NULL;

	return container_of(buffer, server_wlegl_buffer, base);
}

static void
server_wlegl_buffer_dtor(struct wl_resource *resource)
{
	struct wl_buffer *base =
		reinterpret_cast<struct wl_buffer*>(resource->data);
	server_wlegl_buffer *buffer = server_wlegl_buffer_from(base);
	buffer->buf->common.decRef(&buffer->buf->common);
	delete buffer;
}

server_wlegl_buffer *
server_wlegl_buffer_create(uint32_t id,
			   int32_t width,
			   int32_t height,
			   int32_t stride,
			   int32_t format,
			   int32_t usage,
			   buffer_handle_t handle,
			   server_wlegl *wlegl)
{
	server_wlegl_buffer *buffer = new server_wlegl_buffer;
	int ret;

	memset(buffer, 0, sizeof(*buffer));

	buffer->wlegl = wlegl;

	buffer->base.resource.object.id = id;
	buffer->base.resource.object.interface = &wl_buffer_interface;
	buffer->base.resource.object.implementation =
		(void (**)(void)) &server_wlegl_buffer_impl;

	buffer->base.resource.data = &buffer->base;
	buffer->base.resource.destroy = server_wlegl_buffer_dtor;

	buffer->base.width = width;
	buffer->base.height = height;

	ret = wlegl->gralloc->registerBuffer(wlegl->gralloc, handle);
	if (ret) {
		delete buffer;
		return NULL;
	}
        
	buffer->buf = new RemoteWindowBuffer(
		width, height, stride, format, usage, handle, wlegl->gralloc);
	buffer->buf->common.incRef(&buffer->buf->common);
	return buffer;
}