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dev0
2025-11-24 14:19:51 +05:30
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DependentExtensions/SQLite3Plugin/Logger/ClientOnly/Optional/DX9_BackbufferGrabber.cpp Normal file
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/*
* This file was taken from RakNet 4.082.
* Please see licenses/RakNet license.txt for the underlying license and related copyright.
*
* Modified work: Copyright (c) 2017-2020, SLikeSoft UG (haftungsbeschränkt)
*
* This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style
* license found in the license.txt file in the root directory of this source tree.
*/
#include "DX9_BackbufferGrabber.h"
DX9_BackbufferGrabber::DX9_BackbufferGrabber()
{
pDestSurface=0;
pRenderTargetSurface=0;
deviceUsedToInit=0;
width=0;
height=0;
needsUnlock=false;
}
DX9_BackbufferGrabber::~DX9_BackbufferGrabber()
{
if (pDestSurface)
pDestSurface->Release();
if (pRenderTargetSurface)
pRenderTargetSurface->Release();
}
void DX9_BackbufferGrabber::InitBackbufferGrabber(LPDIRECT3DDEVICE9 pd3dDevice, int _width, int _height)
{
if (width==_width && height==_height && pDestSurface && pRenderTargetSurface)
return;
if (pDestSurface)
pDestSurface->Release();
if (pRenderTargetSurface)
pRenderTargetSurface->Release();
width=_width;
height=_height;
deviceUsedToInit=pd3dDevice;
HRESULT hr;
// KevinJ: Surface to copy to in system memory
hr = deviceUsedToInit->CreateOffscreenPlainSurface(width, height, D3DFMT_A8R8G8B8,D3DPOOL_SYSTEMMEM, &pDestSurface, nullptr);
if (hr!=S_OK) return;
// Surface to downsize to
hr = deviceUsedToInit->CreateRenderTarget(
width,
height,
D3DFMT_A8R8G8B8,
D3DMULTISAMPLE_NONE,
0,
false,
&pRenderTargetSurface,
nullptr
);
}
void DX9_BackbufferGrabber::LockBackbufferCopy(SLNet::RGBImageBlob *blob)
{
LPDIRECT3DDEVICE9 pd3dDevice;
pd3dDevice=deviceUsedToInit;
IDirect3DSurface9 * pBackBuffer;
HRESULT hr;
hr = deviceUsedToInit->GetBackBuffer(0,0,D3DBACKBUFFER_TYPE_MONO, &pBackBuffer);
hr = deviceUsedToInit->StretchRect(pBackBuffer, nullptr, pRenderTargetSurface, nullptr, D3DTEXF_NONE);
hr = deviceUsedToInit->GetRenderTargetData(pRenderTargetSurface,pDestSurface);
// SLNet::TimeMS t1 = SLNet::GetTimeMS();
D3DLOCKED_RECT lockedRect;
hr = pDestSurface->LockRect(&lockedRect,0,D3DLOCK_DONOTWAIT|D3DLOCK_READONLY|D3DLOCK_NOSYSLOCK);
if (hr==D3D_OK)
{
blob->data=(unsigned char*)(lockedRect.pBits);
// #high - consider changing data types or add error handling
blob->imageHeight=static_cast<uint16_t>(height);
blob->imageWidth=static_cast<uint16_t>(width);
blob->input_components=4;
blob->linePitch=static_cast<uint16_t>(lockedRect.Pitch);
needsUnlock=true;
}
}
void DX9_BackbufferGrabber::ReleaseBackbufferCopy(void)
{
if (needsUnlock)
{
pDestSurface->UnlockRect();
needsUnlock=false;
}
}