kaetemi
10 years ago
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/**
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* \file render_target_manager.h
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* \brief CRenderTargetManager
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* \date 2014-07-30 21:30GMT
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* \author Jan Boon (Kaetemi)
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* CRenderTargetManager
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*/
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/*
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* Copyright (C) 2013 by authors
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*
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* This file is part of NL3D.
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* NL3D is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* NL3D is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General
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* Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with NL3D. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef NL3D_RENDER_TARGET_MANAGER_H
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#define NL3D_RENDER_TARGET_MANAGER_H
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#include <nel/misc/types_nl.h>
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// STL includes
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// NeL includes
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#include <nel/misc/smart_ptr.h>
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#include <nel/misc/geom_ext.h>
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// Project includes
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// ...
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namespace NL3D {
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class UDriver;
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class ITexture;
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class CTextureUser;
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class CDriverUser;
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struct CRenderTargetDescInt;
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/**
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* \brief CRenderTargetManager
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* \date 2013-07-03 20:17GMT
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* \author Jan Boon (Kaetemi)
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* CRenderTargetManager
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* Usage: Call 'getRenderTarget' when you start using a render target,
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* call 'recycledRenderTarget' when the render target can be recycled.
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* At end of frame call cleanup.
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* Assumes semi-constant render target quantity between frames,
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* except on changes of resolution or feature settings.
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*/
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class CRenderTargetManager
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{
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public:
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CRenderTargetManager();
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~CRenderTargetManager();
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NL3D::CTextureUser *getRenderTarget(uint width, uint height);
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void recycleRenderTarget(NL3D::CTextureUser *renderTarget);
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void cleanup();
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private:
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friend class CDriverUser;
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NL3D::UDriver *m_Driver;
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std::vector<CRenderTargetDescInt *> m_RenderTargets;
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}; /* class CRenderTargetManager */
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} /* namespace NL3D */
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#endif /* #ifndef NL3D_RENDER_TARGET_MANAGER_H */
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/* end of file */
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@ -0,0 +1,152 @@
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/**
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* \file render_target_manager.cpp
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* \brief CRenderTargetManager
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* \date 2014-07-30 21:30GMT
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* \author Jan Boon (Kaetemi)
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* CRenderTargetManager
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*/
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/*
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* Copyright (C) 2014 by authors
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*
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* This file is part of NL3D.
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* NL3D is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* NL3D is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General
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* Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with NL3D. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <nel/misc/types_nl.h>
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#include <nel/3d/render_target_manager.h>
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// STL includes
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#include <sstream>
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// NeL includes
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// #include <nel/misc/debug.h>
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#include <nel/3d/u_camera.h>
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#include <nel/3d/u_driver.h>
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#include <nel/3d/material.h>
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#include <nel/3d/texture_bloom.h>
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#include <nel/3d/texture_user.h>
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#include <nel/3d/driver_user.h>
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#include <nel/3d/u_texture.h>
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// Project includes
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using namespace std;
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// using namespace NLMISC;
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namespace NL3D {
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struct CRenderTargetDescInt
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{
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public:
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uint Width;
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uint Height;
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NL3D::CTextureUser *TextureUser;
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NLMISC::CSmartPtr<NL3D::ITexture> TextureInterface;
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bool InUse;
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bool Used;
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};
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CRenderTargetManager::CRenderTargetManager() : m_Driver(NULL)
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{
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}
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CRenderTargetManager::~CRenderTargetManager()
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{
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// Call twice to reset counters and cleanup
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cleanup();
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cleanup();
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}
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NL3D::CTextureUser *CRenderTargetManager::getRenderTarget(uint width, uint height)
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{
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// Find or create a render target, short loop so no real optimization
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for (std::vector<CRenderTargetDescInt *>::iterator it(m_RenderTargets.begin()), end(m_RenderTargets.end()); it != end; ++it)
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{
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CRenderTargetDescInt *desc = *it;
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if (!desc->InUse && desc->Width == width && desc->Height == height)
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{
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desc->InUse = true;
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desc->Used = true;
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return desc->TextureUser;
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}
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}
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nldebug("3D: Create new render target (%u x %u)", width, height);
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NL3D::IDriver *drvInternal = (static_cast<CDriverUser *>(m_Driver))->getDriver();
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CRenderTargetDescInt *desc = new CRenderTargetDescInt();
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desc->TextureInterface = new CTextureBloom(); // LOL
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desc->TextureInterface->setRenderTarget(true);
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desc->TextureInterface->setReleasable(false);
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desc->TextureInterface->resize(width, height);
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desc->TextureInterface->setFilterMode(ITexture::Linear, ITexture::LinearMipMapOff);
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desc->TextureInterface->setWrapS(ITexture::Clamp);
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desc->TextureInterface->setWrapT(ITexture::Clamp);
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drvInternal->setupTexture(*desc->TextureInterface);
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desc->TextureUser = new CTextureUser(desc->TextureInterface);
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nlassert(!drvInternal->isTextureRectangle(desc->TextureInterface)); // Not allowed, we only support NPOT for render targets now.
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desc->Width = width;
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desc->Height = height;
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desc->Used = true;
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desc->InUse = true;
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m_RenderTargets.push_back(desc);
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return desc->TextureUser;
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}
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void CRenderTargetManager::recycleRenderTarget(NL3D::CTextureUser *renderTarget)
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{
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for (std::vector<CRenderTargetDescInt *>::iterator it(m_RenderTargets.begin()), end(m_RenderTargets.end()); it != end; ++it)
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{
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CRenderTargetDescInt *desc = *it;
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if (desc->TextureUser == renderTarget)
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{
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desc->InUse = false;
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return;
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}
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}
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nlerror("3D: Render target not found");
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}
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void CRenderTargetManager::cleanup()
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{
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for (sint i = 0; i < (sint)m_RenderTargets.size(); ++i)
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{
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CRenderTargetDescInt *desc = m_RenderTargets[i];
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nlassert(!desc->InUse); // Assert for debugging, to not allow textures being carried over between frames. Optional assert
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if (!desc->InUse)
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{
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if (!desc->Used)
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{
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// No longer in use
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nldebug("3D: Release render target (%u x %u)", desc->Width, desc->Height);
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delete desc->TextureUser;
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desc->TextureUser = NULL;
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desc->TextureInterface = NULL; // CSmartPtr
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m_RenderTargets.erase(m_RenderTargets.begin() + i);
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--i;
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}
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else
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{
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// Flag for next round
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desc->Used = false;
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}
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}
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}
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}
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} /* namespace NL3D */
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/* end of file */
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