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/**
* FreeRDP: A Remote Desktop Protocol Client
* Surface Commands
*
* Copyright 2011 Vic Lee
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <freerdp/utils/pcap.h>
#include "surface.h"
static int update_recv_surfcmd_surface_bits(rdpUpdate* update, STREAM* s)
{
int pos;
SURFACE_BITS_COMMAND* cmd = &update->surface_bits_command;
stream_read_uint16(s, cmd->destLeft);
stream_read_uint16(s, cmd->destTop);
stream_read_uint16(s, cmd->destRight);
stream_read_uint16(s, cmd->destBottom);
stream_read_uint8(s, cmd->bpp);
stream_seek(s, 2); /* reserved1, reserved2 */
stream_read_uint8(s, cmd->codecID);
stream_read_uint16(s, cmd->width);
stream_read_uint16(s, cmd->height);
stream_read_uint32(s, cmd->bitmapDataLength);
pos = stream_get_pos(s) + cmd->bitmapDataLength;
cmd->bitmapData = stream_get_tail(s);
update->SurfaceBits(update->context, cmd);
stream_set_pos(s, pos);
return 20 + cmd->bitmapDataLength;
}
static int update_recv_surfcmd_frame_marker(rdpUpdate* update, STREAM* s)
{
SURFACE_FRAME_MARKER* marker = &update->surface_frame_marker;
stream_read_uint16(s, marker->frameAction);
stream_read_uint32(s, marker->frameId);
update->SurfaceFrameMarker(update->context, marker);
return 6;
}
tbool update_recv_surfcmds(rdpUpdate* update, uint32 size, STREAM* s)
{
uint8* mark;
uint16 cmdType;
uint32 cmdLength;
while (size > 2)
{
stream_get_mark(s, mark);
stream_read_uint16(s, cmdType);
size -= 2;
switch (cmdType)
{
case CMDTYPE_SET_SURFACE_BITS:
case CMDTYPE_STREAM_SURFACE_BITS:
cmdLength = update_recv_surfcmd_surface_bits(update, s);
break;
case CMDTYPE_FRAME_MARKER:
cmdLength = update_recv_surfcmd_frame_marker(update, s);
break;
default:
DEBUG_WARN("unknown cmdType 0x%X", cmdType);
return false;
}
size -= cmdLength;
if (update->dump_rfx)
{
pcap_add_record(update->pcap_rfx, mark, cmdLength + 2);
pcap_flush(update->pcap_rfx);
}
}
return true;
}
void update_write_surfcmd_surface_bits_header(STREAM* s, SURFACE_BITS_COMMAND* cmd)
{
stream_check_size(s, SURFCMD_SURFACE_BITS_HEADER_LENGTH);
stream_write_uint16(s, CMDTYPE_STREAM_SURFACE_BITS);
stream_write_uint16(s, cmd->destLeft);
stream_write_uint16(s, cmd->destTop);
stream_write_uint16(s, cmd->destRight);
stream_write_uint16(s, cmd->destBottom);
stream_write_uint8(s, cmd->bpp);
stream_write_uint16(s, 0); /* reserved1, reserved2 */
stream_write_uint8(s, cmd->codecID);
stream_write_uint16(s, cmd->width);
stream_write_uint16(s, cmd->height);
stream_write_uint32(s, cmd->bitmapDataLength);
}
void update_write_surfcmd_frame_marker(STREAM* s, uint16 frameAction, uint32 frameId)
{
stream_check_size(s, SURFCMD_FRAME_MARKER_LENGTH);
stream_write_uint16(s, CMDTYPE_FRAME_MARKER);
stream_write_uint16(s, frameAction);
stream_write_uint32(s, frameId);
}
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