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/*
Copyright (C) 2009-2015 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "inputs-channel-client.h"
#include "migration-protocol.h"
#include "red-channel-client.h"
// TODO: RECEIVE_BUF_SIZE used to be the same for inputs_channel and main_channel
// since it was defined once in reds.c which contained both.
// Now that they are split we can give a more fitting value for inputs - what
// should it be?
#define REDS_AGENT_WINDOW_SIZE 10
#define REDS_NUM_INTERNAL_AGENT_MESSAGES 1
// approximate max receive message size
#define RECEIVE_BUF_SIZE \
(4096 + (REDS_AGENT_WINDOW_SIZE + REDS_NUM_INTERNAL_AGENT_MESSAGES) * SPICE_AGENT_MAX_DATA_SIZE)
struct InputsChannelClientPrivate
{
uint16_t motion_count;
uint8_t recv_buf[RECEIVE_BUF_SIZE];
};
G_DEFINE_TYPE_WITH_PRIVATE(InputsChannelClient, inputs_channel_client, RED_TYPE_CHANNEL_CLIENT)
static uint8_t *
inputs_channel_client_alloc_msg_rcv_buf(RedChannelClient *rcc,
uint16_t type, uint32_t size)
{
InputsChannelClient *icc = INPUTS_CHANNEL_CLIENT(rcc);
if (size > sizeof(icc->priv->recv_buf)) {
red_channel_warning(rcc->get_channel(),
"error: too large incoming message");
return NULL;
}
return icc->priv->recv_buf;
}
static void
inputs_channel_client_release_msg_rcv_buf(RedChannelClient *rcc,
uint16_t type, uint32_t size, uint8_t *msg)
{
}
static void inputs_channel_client_on_disconnect(RedChannelClient *rcc)
{
if (!rcc) {
return;
}
inputs_release_keys(INPUTS_CHANNEL(rcc->get_channel()));
}
static void
inputs_channel_client_class_init(InputsChannelClientClass *klass)
{
RedChannelClientClass *client_class = RED_CHANNEL_CLIENT_CLASS(klass);
client_class->alloc_recv_buf = inputs_channel_client_alloc_msg_rcv_buf;
client_class->release_recv_buf = inputs_channel_client_release_msg_rcv_buf;
client_class->on_disconnect = inputs_channel_client_on_disconnect;
}
static void
inputs_channel_client_init(InputsChannelClient *self)
{
self->priv = (InputsChannelClientPrivate *) inputs_channel_client_get_instance_private(self);
}
RedChannelClient* inputs_channel_client_create(RedChannel *channel,
RedClient *client,
RedStream *stream,
RedChannelCapabilities *caps)
{
RedChannelClient *rcc;
rcc = (RedChannelClient *)
g_initable_new(TYPE_INPUTS_CHANNEL_CLIENT,
NULL, NULL,
"channel", channel,
"client", client,
"stream", stream,
"caps", caps,
NULL);
return rcc;
}
void inputs_channel_client_send_migrate_data(RedChannelClient *rcc,
SpiceMarshaller *m,
RedPipeItem *item)
{
InputsChannelClient *icc = INPUTS_CHANNEL_CLIENT(rcc);
rcc->init_send_data(SPICE_MSG_MIGRATE_DATA);
spice_marshaller_add_uint32(m, SPICE_MIGRATE_DATA_INPUTS_MAGIC);
spice_marshaller_add_uint32(m, SPICE_MIGRATE_DATA_INPUTS_VERSION);
spice_marshaller_add_uint16(m, icc->priv->motion_count);
}
void inputs_channel_client_handle_migrate_data(InputsChannelClient *icc,
uint16_t motion_count)
{
icc->priv->motion_count = motion_count;
for (; icc->priv->motion_count >= SPICE_INPUT_MOTION_ACK_BUNCH;
icc->priv->motion_count -= SPICE_INPUT_MOTION_ACK_BUNCH) {
icc->pipe_add_type(RED_PIPE_ITEM_MOUSE_MOTION_ACK);
}
}
void inputs_channel_client_on_mouse_motion(InputsChannelClient *icc)
{
InputsChannel *inputs_channel = INPUTS_CHANNEL(icc->get_channel());
if (++icc->priv->motion_count % SPICE_INPUT_MOTION_ACK_BUNCH == 0 &&
!inputs_channel_is_src_during_migrate(inputs_channel)) {
icc->pipe_add_type(RED_PIPE_ITEM_MOUSE_MOTION_ACK);
icc->priv->motion_count = 0;
}
}
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