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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* RDPXXXX Remote App Graphics Redirection Virtual Channel Extension
*
* Copyright 2020 Hideyuki Nagase <hideyukn@microsoft.com>
*
* 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.
*/
#ifndef FREERDP_CHANNEL_GFXREDIR_H
#define FREERDP_CHANNEL_GFXREDIR_H
#include <freerdp/api.h>
#include <freerdp/types.h>
#ifdef __cplusplus
extern "C"
{
#endif
#define GFXREDIR_DVC_CHANNEL_NAME "Microsoft::Windows::RDS::RemoteAppGraphicsRedirection"
/* GFXREDIR_LEGACY_CAPS_PDU.version */
#define GFXREDIR_CHANNEL_VERSION_LEGACY 1
#define GFXREDIR_CHANNEL_VERSION_MAJOR 2
#define GFXREDIR_CHANNEL_VERSION_MINOR 0
/* GFXREDIR_CAPS_VERSION1 */
#define GFXREDIR_CMDID_LEGACY_CAPS 0x00000001
#define GFXREDIR_CMDID_ERROR 0x00000006
#define GFXREDIR_CMDID_CAPS_ADVERTISE 0x00000008
#define GFXREDIR_CMDID_CAPS_CONFIRM 0x00000009
/* GFXREDIR_CAPS_VERSION2_0 */
#define GFXREDIR_CMDID_OPEN_POOL 0x0000000a
#define GFXREDIR_CMDID_CLOSE_POOL 0x0000000b
#define GFXREDIR_CMDID_CREATE_BUFFER 0x0000000c
#define GFXREDIR_CMDID_DESTROY_BUFFER 0x0000000d
#define GFXREDIR_CMDID_PRESENT_BUFFER 0x0000000e
#define GFXREDIR_CMDID_PRESENT_BUFFER_ACK 0x0000000f
/* GFXREDIR_HEADER */
#define GFXREDIR_HEADER_SIZE 8
/* GFXREDIR_CAPS_HEADER */
#define GFXREDIR_CAPS_HEADER_SIZE 12
/* GFXREDIR_CAPS_HEADER.signature */
#define GFXREDIR_CAPS_SIGNATURE 0x53504143 /* = 'SPAC' */
/* GFXREDIR_CAPS_HEADER.version */
#define GFXREDIR_CAPS_VERSION1 0x1
#define GFXREDIR_CAPS_VERSION2_0 0x2000
/* GFXREDIR_CREATE_BUFFER_PDU.format */
#define GFXREDIR_BUFFER_PIXEL_FORMAT_XRGB_8888 1
#define GFXREDIR_BUFFER_PIXEL_FORMAT_ARGB_8888 2
/* GFXREDIR_PRESENT_BUFFER_PDU.numOpaqueRects */
#define GFXREDIR_MAX_OPAQUE_RECTS 0x10
typedef struct
{
UINT32 cmdId;
UINT32 length;
} GFXREDIR_HEADER;
typedef struct
{
UINT16 version; // GFXREDIR_CHANNEL_VERSION_LEGACY
} GFXREDIR_LEGACY_CAPS_PDU;
typedef struct
{
UINT32 signature; // GFXREDIR_CAPS_SIGNATURE
UINT32 version; // GFXREDIR_CAPS_VERSION
UINT32 length; // GFXREDIR_CAPS_HEADER_SIZE + size of capsData
} GFXREDIR_CAPS_HEADER;
typedef struct
{
GFXREDIR_CAPS_HEADER header;
UINT32 supportedFeatures; /* Reserved for future extensions */
} GFXREDIR_CAPS_V2_0_PDU;
typedef struct
{
UINT32 errorCode;
} GFXREDIR_ERROR_PDU;
typedef struct
{
UINT32 length; // length of caps;
const BYTE* caps; // points variable length array of GFXREDIR_CAPS_HEADER.
} GFXREDIR_CAPS_ADVERTISE_PDU;
typedef struct
{
UINT32 version; // confirmed version, must be one of advertised by client.
UINT32 length; // GFXREDIR_CAPS_HEADER_SIZE + size of capsData.
const BYTE* capsData; // confirmed capsData from selected GFXREDIR_CAPS_HEADER.capsData.
} GFXREDIR_CAPS_CONFIRM_PDU;
typedef struct
{
UINT64 poolId;
UINT64 poolSize;
UINT32 sectionNameLength; // number of charactor, must include null terminated char.
const unsigned short* sectionName; // Windows-style 2 bytes wchar_t with null-terminated.
} GFXREDIR_OPEN_POOL_PDU;
typedef struct
{
UINT64 poolId;
} GFXREDIR_CLOSE_POOL_PDU;
typedef struct
{
UINT64 poolId;
UINT64 bufferId;
UINT64 offset;
UINT32 stride;
UINT32 width;
UINT32 height;
UINT32 format; // GFXREDIR_BUFFER_PIXEL_FORMAT_
} GFXREDIR_CREATE_BUFFER_PDU;
typedef struct
{
UINT64 bufferId;
} GFXREDIR_DESTROY_BUFFER_PDU;
typedef struct
{
UINT64 timestamp;
UINT64 presentId;
UINT64 windowId;
UINT64 bufferId;
UINT32 orientation; // 0, 90, 180 or 270.
UINT32 targetWidth;
UINT32 targetHeight;
RECTANGLE_32 dirtyRect;
UINT32 numOpaqueRects;
RECTANGLE_32* opaqueRects;
} GFXREDIR_PRESENT_BUFFER_PDU;
typedef struct
{
UINT64 windowId;
UINT64 presentId;
} GFXREDIR_PRESENT_BUFFER_ACK_PDU;
#ifdef __cplusplus
}
#endif
#endif /* FREERDP_CHANNEL_GFXREDIR_H */
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