LookingGlass/idd/LGIdd/CIndirectDeviceContext.h

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/**
* Looking Glass
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* Copyright © 2017-2024 The Looking Glass Authors
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* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program 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 General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <Windows.h>
#include <wdf.h>
#include <IddCx.h>
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#include "CIVSHMEM.h"
extern "C" {
#include "lgmp/host.h"
}
#include "common/KVMFR.h"
#define MAX_POINTER_SIZE (sizeof(KVMFRCursor) + (512 * 512 * 4))
#define POINTER_SHAPE_BUFFERS 3
class CIndirectDeviceContext
{
private:
WDFDEVICE m_wdfDevice;
IDDCX_ADAPTER m_adapter = nullptr;
IDDCX_MONITOR m_monitor = nullptr;
CIVSHMEM m_ivshmem;
PLGMPHost m_lgmp = nullptr;
WDFTIMER m_lgmpTimer = nullptr;
PLGMPHostQueue m_frameQueue = nullptr;
PLGMPHostQueue m_pointerQueue = nullptr;
PLGMPMemory m_pointerMemory [LGMP_Q_POINTER_LEN ] = {};
PLGMPMemory m_pointerShapeMemory[POINTER_SHAPE_BUFFERS] = {};
PLGMPMemory m_pointerShape = nullptr;
int m_pointerMemoryIndex = 0;
int m_pointerShapeIndex = 0;
bool m_cursorVisible = false;
int m_cursorX = 0, m_cursorY = 0;
size_t m_maxFrameSize = 0;
int m_frameIndex = 0;
uint32_t m_formatVer = 0;
uint32_t m_frameSerial = 0;
PLGMPMemory m_frameMemory[LGMP_Q_FRAME_LEN] = {};
int m_width = 0;
int m_height = 0;
int m_pitch = 0;
DXGI_FORMAT m_format = DXGI_FORMAT_UNKNOWN;
bool SetupLGMP();
void LGMPTimer();
void ResendCursor();
public:
CIndirectDeviceContext(_In_ WDFDEVICE wdfDevice) :
m_wdfDevice(wdfDevice) {};
virtual ~CIndirectDeviceContext();
void InitAdapter();
void FinishInit(UINT connectorIndex);
void SendFrame(int width, int height, int pitch, DXGI_FORMAT format, void* data);
void SendCursor(const IDARG_OUT_QUERY_HWCURSOR & info, const BYTE * data);
};
struct CIndirectDeviceContextWrapper
{
CIndirectDeviceContext* context;
void Cleanup()
{
delete context;
context = nullptr;
}
};
WDF_DECLARE_CONTEXT_TYPE(CIndirectDeviceContextWrapper);