Files
LookingGlass/idd/LGIdd/transport/lgmp/CLGMPControl.h
2026-08-13 04:08:49 +10:00

87 lines
2.6 KiB
C++

/**
* Looking Glass
* Copyright © 2017-2026 The Looking Glass Authors
* 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 "CSRWLock.h"
#include "transport/lgmp/CLGMPHost.h"
#include "transport/IControlSink.h"
#include "common/KVMFR.h"
#include <Windows.h>
#include <wdf.h>
#include <IddCx.h>
#include <memory>
class CLGMPTransport;
class CLGMPControl final : public IControlSink
{
private:
friend class CLGMPTransport;
static constexpr int POINTER_SHAPE_BUFFERS = 3;
static constexpr int COLOR_TRANSFORM_BUFFERS = 3;
CLGMPHost& m_host;
PLGMPHostQueue m_pointerQueue = nullptr;
PLGMPMemory m_pointerMemory[LGMP_Q_POINTER_LEN] = {};
PLGMPMemory m_pointerShapeMemory[POINTER_SHAPE_BUFFERS] = {};
PLGMPMemory m_pointerTransformMemory[COLOR_TRANSFORM_BUFFERS] = {};
int m_pointerMemoryIndex = 0;
int m_pointerShapeIndex = 0;
int m_pointerTransformIndex = 0;
mutable CSRWLock m_eventLock;
IControlEvents * m_events = nullptr;
ControlToken m_token = {};
PLGMPMemory FindAvailable(
PLGMPMemory * memory, int count, int& index) const;
ControlResult SendColorTransform(
const std::shared_ptr<const D12ColorTransform>& transform);
bool Initialize();
void DeInit();
LGMP_STATUS ReadDataWithSource(void * data, size_t * size,
uint32_t * sourceClientID);
LGMP_STATUS AckData();
bool HasNewSubscribers();
void RequestReplay();
public:
explicit CLGMPControl(CLGMPHost& host) :
m_host(host) {}
~CLGMPControl() override;
CLGMPControl(const CLGMPControl&) = delete;
CLGMPControl& operator=(const CLGMPControl&) = delete;
void SetControlEvents(
IControlEvents * events, const ControlToken& token) override;
ControlResult SendCursor(const IDARG_OUT_QUERY_HWCURSOR& info,
const BYTE * data, size_t size, UINT sdrWhiteLevel) override;
ControlResult SetColorTransform(
std::shared_ptr<const D12ColorTransform> transform) override;
};