1453 lines
52 KiB
C++
1453 lines
52 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include <stdio.h>
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#include <osg/Notify>
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#include <osg/Texture1D>
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#include <osg/Texture2D>
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#include <osg/Texture3D>
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#include <osg/TextureRectangle>
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#include <osg/TextureCubeMap>
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#include <osg/GLExtensions>
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#include <osg/GLU>
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#include <osgUtil/Statistics>
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#include <osgUtil/RenderStage>
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#define FORCE_COLOR_ATTACHMENT 1
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#define FORCE_DEPTH_ATTACHMENT 1
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using namespace osg;
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using namespace osgUtil;
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// register a RenderStage prototype with the RenderBin prototype list.
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//RegisterRenderBinProxy<RenderStage> s_registerRenderStageProxy;
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RenderStage::RenderStage():
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RenderBin(getDefaultRenderBinSortMode()),
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_disableFboAfterRender(true)
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{
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// point RenderBin's _stage to this to ensure that references to
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// stage don't go tempted away to any other stage.
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_stage = this;
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_stageDrawnThisFrame = false;
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_drawBuffer = GL_NONE;
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_drawBufferApplyMask = false;
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_readBuffer = GL_NONE;
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_readBufferApplyMask = false;
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_clearMask = GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT;
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_clearColor.set(0.0f,0.0f,0.0f,0.0f);
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_clearAccum.set(0.0f,0.0f,0.0f,0.0f);
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_clearDepth = 1.0;
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_clearStencil = 0;
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_cameraRequiresSetUp = false;
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_camera = 0;
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_level = 0;
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_face = 0;
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_imageReadPixelFormat = GL_RGBA;
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_imageReadPixelDataType = GL_UNSIGNED_BYTE;
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}
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RenderStage::RenderStage(SortMode mode):
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RenderBin(mode),
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_disableFboAfterRender(true)
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{
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// point RenderBin's _stage to this to ensure that references to
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// stage don't go tempted away to any other stage.
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_stage = this;
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_stageDrawnThisFrame = false;
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_drawBuffer = GL_NONE;
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_drawBufferApplyMask = false;
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_readBuffer = GL_NONE;
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_readBufferApplyMask = false;
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_clearMask = GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT;
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_clearColor.set(0.0f,0.0f,0.0f,0.0f);
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_clearAccum.set(0.0f,0.0f,0.0f,0.0f);
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_clearDepth = 1.0;
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_clearStencil = 0;
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_cameraRequiresSetUp = false;
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_camera = 0;
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_level = 0;
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_face = 0;
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_imageReadPixelFormat = GL_RGBA;
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_imageReadPixelDataType = GL_UNSIGNED_BYTE;
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}
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RenderStage::RenderStage(const RenderStage& rhs,const osg::CopyOp& copyop):
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RenderBin(rhs,copyop),
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_stageDrawnThisFrame(false),
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_preRenderList(rhs._preRenderList),
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_postRenderList(rhs._postRenderList),
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_viewport(rhs._viewport),
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_drawBuffer(rhs._drawBuffer),
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_drawBufferApplyMask(rhs._drawBufferApplyMask),
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_readBuffer(rhs._readBuffer),
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_readBufferApplyMask(rhs._readBufferApplyMask),
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_clearMask(rhs._clearMask),
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_colorMask(rhs._colorMask),
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_clearColor(rhs._clearColor),
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_clearAccum(rhs._clearAccum),
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_clearDepth(rhs._clearDepth),
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_clearStencil(rhs._clearStencil),
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_cameraRequiresSetUp(rhs._cameraRequiresSetUp),
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_camera(rhs._camera),
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_level(rhs._level),
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_face(rhs._face),
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_imageReadPixelFormat(rhs._imageReadPixelFormat),
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_imageReadPixelDataType(rhs._imageReadPixelDataType),
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_disableFboAfterRender(rhs._disableFboAfterRender),
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_renderStageLighting(rhs._renderStageLighting)
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{
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_stage = this;
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}
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RenderStage::~RenderStage()
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{
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}
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void RenderStage::reset()
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{
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_stageDrawnThisFrame = false;
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if (_renderStageLighting.valid()) _renderStageLighting->reset();
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for(RenderStageList::iterator pre_itr = _preRenderList.begin();
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pre_itr != _preRenderList.end();
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++pre_itr)
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{
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pre_itr->second->reset();
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}
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RenderBin::reset();
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for(RenderStageList::iterator post_itr = _postRenderList.begin();
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post_itr != _postRenderList.end();
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++post_itr)
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{
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post_itr->second->reset();
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}
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_preRenderList.clear();
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_postRenderList.clear();
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}
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void RenderStage::sort()
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{
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for(RenderStageList::iterator pre_itr = _preRenderList.begin();
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pre_itr != _preRenderList.end();
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++pre_itr)
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{
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pre_itr->second->sort();
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}
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RenderBin::sort();
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for(RenderStageList::iterator post_itr = _postRenderList.begin();
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post_itr != _postRenderList.end();
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++post_itr)
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{
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post_itr->second->sort();
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}
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}
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void RenderStage::addPreRenderStage(RenderStage* rs, int order)
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{
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if (rs)
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{
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RenderStageList::iterator itr;
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for(itr = _preRenderList.begin(); itr != _preRenderList.end(); ++itr) {
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if(order < itr->first) {
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break;
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}
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}
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if(itr == _preRenderList.end()) {
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_preRenderList.push_back(RenderStageOrderPair(order,rs));
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} else {
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_preRenderList.insert(itr,RenderStageOrderPair(order,rs));
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}
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}
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}
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void RenderStage::addPostRenderStage(RenderStage* rs, int order)
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{
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if (rs)
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{
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RenderStageList::iterator itr;
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for(itr = _postRenderList.begin(); itr != _postRenderList.end(); ++itr) {
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if(order < itr->first) {
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break;
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}
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}
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if(itr == _postRenderList.end()) {
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_postRenderList.push_back(RenderStageOrderPair(order,rs));
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} else {
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_postRenderList.insert(itr,RenderStageOrderPair(order,rs));
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}
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}
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}
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void RenderStage::drawPreRenderStages(osg::RenderInfo& renderInfo,RenderLeaf*& previous)
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{
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if (_preRenderList.empty()) return;
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//cout << "Drawing prerendering stages "<<this<< " "<<_viewport->x()<<","<< _viewport->y()<<","<< _viewport->width()<<","<< _viewport->height()<<std::endl;
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for(RenderStageList::iterator itr=_preRenderList.begin();
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itr!=_preRenderList.end();
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++itr)
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{
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itr->second->draw(renderInfo,previous);
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}
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//cout << "Done Drawing prerendering stages "<<this<< " "<<_viewport->x()<<","<< _viewport->y()<<","<< _viewport->width()<<","<< _viewport->height()<<std::endl;
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}
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void RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo)
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{
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_cameraRequiresSetUp = false;
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if (!_camera) return;
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osg::State& state = *renderInfo.getState();
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osg::Camera::RenderTargetImplementation renderTargetImplementation = _camera->getRenderTargetImplementation();
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osg::Camera::RenderTargetImplementation renderTargetFallback = _camera->getRenderTargetFallback();
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osg::Camera::BufferAttachmentMap& bufferAttachments = _camera->getBufferAttachmentMap();
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// compute the required dimensions
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int width = static_cast<int>(_viewport->x() + _viewport->width());
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int height = static_cast<int>(_viewport->y() + _viewport->height());
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int depth = 1;
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osg::Camera::BufferAttachmentMap::iterator itr;
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for(itr = bufferAttachments.begin();
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itr != bufferAttachments.end();
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++itr)
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{
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width = osg::maximum(width,itr->second.width());
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height = osg::maximum(height,itr->second.height());
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depth = osg::maximum(depth,itr->second.depth());
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}
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// osg::notify(osg::NOTICE)<<"RenderStage::runCameraSetUp viewport "<<_viewport->x()<<" "<<_viewport->y()<<" "<<_viewport->width()<<" "<<_viewport->height()<<std::endl;
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// osg::notify(osg::NOTICE)<<"RenderStage::runCameraSetUp computed "<<width<<" "<<height<<" "<<depth<<std::endl;
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// attach images that need to be copied after the stage is drawn.
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for(itr = bufferAttachments.begin();
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itr != bufferAttachments.end();
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++itr)
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{
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// if one exist attach image to the RenderStage.
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if (itr->second._image.valid())
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{
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osg::Image* image = itr->second._image.get();
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GLenum pixelFormat = image->getPixelFormat();
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GLenum dataType = image->getDataType();
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if (image->data()==0)
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{
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if (pixelFormat==0) pixelFormat = itr->second._internalFormat;
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if (pixelFormat==0) pixelFormat = _imageReadPixelFormat;
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if (pixelFormat==0) pixelFormat = GL_RGBA;
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if (dataType==0) dataType = _imageReadPixelDataType;
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if (dataType==0) dataType = GL_UNSIGNED_BYTE;
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}
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_bufferAttachmentMap[itr->first]._imageReadPixelFormat = pixelFormat;
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_bufferAttachmentMap[itr->first]._imageReadPixelDataType = dataType;
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_bufferAttachmentMap[itr->first]._image = image;
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}
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if (itr->second._texture.valid())
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{
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osg::Texture* texture = itr->second._texture.get();
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osg::Texture1D* texture1D = 0;
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osg::Texture2D* texture2D = 0;
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osg::Texture3D* texture3D = 0;
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osg::TextureCubeMap* textureCubeMap = 0;
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osg::TextureRectangle* textureRectangle = 0;
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if (0 != (texture1D=dynamic_cast<osg::Texture1D*>(texture)))
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{
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if (texture1D->getTextureWidth()==0)
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{
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texture1D->setTextureWidth(width);
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}
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}
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else if (0 != (texture2D = dynamic_cast<osg::Texture2D*>(texture)))
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{
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if (texture2D->getTextureWidth()==0 || texture2D->getTextureHeight()==0)
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{
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texture2D->setTextureSize(width,height);
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}
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}
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else if (0 != (texture3D = dynamic_cast<osg::Texture3D*>(texture)))
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{
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if (texture3D->getTextureWidth()==0 || texture3D->getTextureHeight()==0 || texture3D->getTextureDepth()==0 )
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{
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// note we dont' have the depth here, so we'll heave to assume that height and depth are the same..
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texture3D->setTextureSize(width,height,height);
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}
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}
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else if (0 != (textureCubeMap = dynamic_cast<osg::TextureCubeMap*>(texture)))
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{
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if (textureCubeMap->getTextureWidth()==0 || textureCubeMap->getTextureHeight()==0)
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{
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textureCubeMap->setTextureSize(width,height);
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}
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}
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else if (0 != (textureRectangle = dynamic_cast<osg::TextureRectangle*>(texture)))
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{
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if (textureRectangle->getTextureWidth()==0 || textureRectangle->getTextureHeight()==0)
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{
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textureRectangle->setTextureSize(width,height);
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}
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}
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}
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}
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if (renderTargetImplementation==osg::Camera::FRAME_BUFFER_OBJECT)
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{
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osg::FBOExtensions* fbo_ext = osg::FBOExtensions::instance(state.getContextID(),true);
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bool fbo_supported = fbo_ext && fbo_ext->isSupported();
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if (fbo_supported && !_fbo)
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{
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osg::notify(osg::INFO)<<"Setting up osg::Camera::FRAME_BUFFER_OBJECT"<<std::endl;
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(*(_camera->getDataChangeMutex()));
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osg::ref_ptr<osg::FrameBufferObject> fbo = new osg::FrameBufferObject;
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osg::ref_ptr<osg::FrameBufferObject> fbo_multisample;
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bool colorAttached = false;
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bool depthAttached = false;
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bool stencilAttached = false;
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unsigned samples = 0;
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unsigned colorSamples = 0;
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if (fbo_ext->isMultisampleSupported())
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{
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for(osg::Camera::BufferAttachmentMap::iterator itr = bufferAttachments.begin();
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itr != bufferAttachments.end();
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++itr)
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{
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osg::Camera::Attachment& attachment = itr->second;
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samples = maximum(samples, attachment._multisampleSamples);
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colorSamples = maximum(colorSamples, attachment._multisampleColorSamples);
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}
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if (colorSamples > samples)
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{
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osg::notify(WARN) << "Multisample color samples must be less than or "
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"equal to samples. Setting color samples equal to samples." << std::endl;
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colorSamples = samples;
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}
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if (samples)
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{
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fbo_multisample = new osg::FrameBufferObject;
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}
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}
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for(osg::Camera::BufferAttachmentMap::iterator itr = bufferAttachments.begin();
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itr != bufferAttachments.end();
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++itr)
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{
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osg::Camera::BufferComponent buffer = itr->first;
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osg::Camera::Attachment& attachment = itr->second;
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if (attachment._texture.valid() || attachment._image.valid())
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fbo->setAttachment(buffer, osg::FrameBufferAttachment(attachment));
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else
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fbo->setAttachment(buffer, osg::FrameBufferAttachment(new osg::RenderBuffer(width, height, attachment._internalFormat)));
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if (fbo_multisample.valid())
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{
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GLenum internalFormat = attachment._internalFormat;
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if (!internalFormat)
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{
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switch (buffer)
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{
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case Camera::DEPTH_BUFFER:
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internalFormat = GL_DEPTH_COMPONENT24;
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break;
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case Camera::STENCIL_BUFFER:
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internalFormat = GL_STENCIL_INDEX8_EXT;
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break;
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case Camera::PACKED_DEPTH_STENCIL_BUFFER:
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internalFormat = GL_DEPTH_STENCIL_EXT;
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break;
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// all other buffers are color buffers
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default:
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// setup the internal format based on attached texture if such exists, otherwise just default format
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if (attachment._texture)
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internalFormat = attachment._texture->getInternalFormat();
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else
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internalFormat = GL_RGBA;
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break;
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}
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}
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fbo_multisample->setAttachment(buffer,
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osg::FrameBufferAttachment(new osg::RenderBuffer(
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width, height, internalFormat,
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samples, colorSamples)));
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}
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if (buffer==osg::Camera::DEPTH_BUFFER) depthAttached = true;
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else if (buffer==osg::Camera::STENCIL_BUFFER) stencilAttached = true;
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else if (buffer==osg::Camera::PACKED_DEPTH_STENCIL_BUFFER)
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{
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depthAttached = true;
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stencilAttached = true;
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}
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else if (buffer>=osg::Camera::COLOR_BUFFER) colorAttached = true;
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}
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#if FORCE_DEPTH_ATTACHMENT
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if (!depthAttached)
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{
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fbo->setAttachment(osg::Camera::DEPTH_BUFFER, osg::FrameBufferAttachment(new osg::RenderBuffer(width, height, GL_DEPTH_COMPONENT24)));
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if (fbo_multisample.valid())
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{
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fbo_multisample->setAttachment(osg::Camera::DEPTH_BUFFER,
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osg::FrameBufferAttachment(new osg::RenderBuffer(width,
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height, GL_DEPTH_COMPONENT24, samples, colorSamples)));
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}
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depthAttached = true;
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}
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#endif
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#if FORCE_COLOR_ATTACHMENT
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if (!colorAttached)
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{
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fbo->setAttachment(osg::Camera::COLOR_BUFFER, osg::FrameBufferAttachment(new osg::RenderBuffer(width, height, GL_RGB)));
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if (fbo_multisample.valid())
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{
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fbo_multisample->setAttachment(osg::Camera::COLOR_BUFFER,
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osg::FrameBufferAttachment(new osg::RenderBuffer(width,
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height, GL_RGB, samples, colorSamples)));
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}
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colorAttached = true;
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}
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#endif
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fbo->apply(state);
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// If no color attachment make sure to set glDrawBuffer/glReadBuffer to none
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// otherwise glCheckFramebufferStatusEXT will fail
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// It has to be done after call to glBindFramebuffer (fbo->apply)
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// and before call to glCheckFramebufferStatus
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if ( !colorAttached )
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{
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setDrawBuffer( GL_NONE, true );
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setReadBuffer( GL_NONE, true );
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#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
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glDrawBuffer( GL_NONE );
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glReadBuffer( GL_NONE );
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#endif
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}
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GLenum status = fbo_ext->glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
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if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
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{
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osg::notify(osg::NOTICE)<<"RenderStage::runCameraSetUp(), FBO setup failed, FBO status= 0x"<<std::hex<<status<<std::dec<<std::endl;
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fbo_supported = false;
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fbo_ext->glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
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fbo = 0;
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// clean up.
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double availableTime = 100.0f;
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double currentTime = state.getFrameStamp()?state.getFrameStamp()->getReferenceTime():0.0;
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osg::RenderBuffer::flushDeletedRenderBuffers(state.getContextID(),currentTime,availableTime);
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osg::FrameBufferObject::flushDeletedFrameBufferObjects(state.getContextID(),currentTime,availableTime);
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}
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else
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{
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setDrawBuffer(GL_NONE, false );
|
|
setReadBuffer(GL_NONE, false );
|
|
|
|
_fbo = fbo;
|
|
|
|
if (fbo_multisample.valid())
|
|
{
|
|
fbo_multisample->apply(state);
|
|
|
|
GLenum status = fbo_ext->glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
|
|
|
|
if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
|
|
{
|
|
notify(NOTICE) << "RenderStage::runCameraSetUp(), "
|
|
"multisample FBO setup failed, FBO status = 0x"
|
|
<< std::hex << status << std::dec << std::endl;
|
|
|
|
fbo->apply(state);
|
|
fbo_multisample = 0;
|
|
_resolveFbo = 0;
|
|
|
|
// clean up.
|
|
double availableTime = 100.0f;
|
|
double currentTime = state.getFrameStamp()?state.getFrameStamp()->getReferenceTime():0.0;
|
|
osg::RenderBuffer::flushDeletedRenderBuffers(state.getContextID(),currentTime,availableTime);
|
|
osg::FrameBufferObject::flushDeletedFrameBufferObjects(state.getContextID(),currentTime,availableTime);
|
|
}
|
|
else
|
|
{
|
|
_resolveFbo.swap(_fbo);
|
|
_fbo = fbo_multisample;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
_resolveFbo = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!fbo_supported)
|
|
{
|
|
if (renderTargetImplementation<renderTargetFallback)
|
|
renderTargetImplementation = renderTargetFallback;
|
|
else
|
|
renderTargetImplementation = osg::Camera::PIXEL_BUFFER_RTT;
|
|
}
|
|
}
|
|
|
|
// check whether PBuffer-RTT is supported or not
|
|
if (renderTargetImplementation==osg::Camera::PIXEL_BUFFER_RTT &&
|
|
!osg::isGLExtensionSupported(state.getContextID(), "WGL_ARB_render_texture"))
|
|
{
|
|
if (renderTargetImplementation<renderTargetFallback)
|
|
renderTargetImplementation = renderTargetFallback;
|
|
else
|
|
renderTargetImplementation = osg::Camera::PIXEL_BUFFER;
|
|
}
|
|
|
|
// if any of the renderTargetImplementations require a separate graphics context such as with pbuffer try in turn to
|
|
// set up, but if each level fails then resort to the next level down.
|
|
while (!getGraphicsContext() &&
|
|
(renderTargetImplementation==osg::Camera::PIXEL_BUFFER_RTT ||
|
|
renderTargetImplementation==osg::Camera::PIXEL_BUFFER ||
|
|
renderTargetImplementation==osg::Camera::SEPERATE_WINDOW) )
|
|
{
|
|
osg::ref_ptr<osg::GraphicsContext> context = getGraphicsContext();
|
|
if (!context)
|
|
{
|
|
|
|
// set up the traits of the graphics context that we want
|
|
osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits;
|
|
|
|
traits->width = width;
|
|
traits->height = height;
|
|
|
|
// osg::notify(osg::NOTICE)<<"traits = "<<traits->width<<" "<<traits->height<<std::endl;
|
|
|
|
traits->pbuffer = (renderTargetImplementation==osg::Camera::PIXEL_BUFFER || renderTargetImplementation==osg::Camera::PIXEL_BUFFER_RTT);
|
|
traits->windowDecoration = (renderTargetImplementation==osg::Camera::SEPERATE_WINDOW);
|
|
traits->doubleBuffer = (renderTargetImplementation==osg::Camera::SEPERATE_WINDOW);
|
|
|
|
osg::Texture* pBufferTexture = 0;
|
|
GLenum bufferFormat = GL_NONE;
|
|
unsigned int level = 0;
|
|
unsigned int face = 0;
|
|
|
|
bool colorAttached = false;
|
|
bool depthAttached = false;
|
|
bool stencilAttached = false;
|
|
for(osg::Camera::BufferAttachmentMap::iterator itr = bufferAttachments.begin();
|
|
itr != bufferAttachments.end();
|
|
++itr)
|
|
{
|
|
|
|
osg::Camera::BufferComponent buffer = itr->first;
|
|
osg::Camera::Attachment& attachment = itr->second;
|
|
switch(buffer)
|
|
{
|
|
case(osg::Camera::DEPTH_BUFFER):
|
|
{
|
|
traits->depth = 24;
|
|
depthAttached = true;
|
|
break;
|
|
}
|
|
case(osg::Camera::STENCIL_BUFFER):
|
|
{
|
|
traits->stencil = 8;
|
|
stencilAttached = true;
|
|
break;
|
|
}
|
|
case(osg::Camera::PACKED_DEPTH_STENCIL_BUFFER):
|
|
{
|
|
traits->depth = 24;
|
|
depthAttached = true;
|
|
traits->stencil = 8;
|
|
stencilAttached = true;
|
|
}
|
|
case(osg::Camera::COLOR_BUFFER):
|
|
{
|
|
if (attachment._internalFormat!=GL_NONE)
|
|
{
|
|
bufferFormat = attachment._internalFormat;
|
|
}
|
|
else
|
|
{
|
|
if (attachment._texture.valid())
|
|
{
|
|
pBufferTexture = attachment._texture.get();
|
|
bufferFormat = attachment._texture->getInternalFormat();
|
|
}
|
|
else if (attachment._image.valid())
|
|
{
|
|
bufferFormat = attachment._image->getInternalTextureFormat();
|
|
}
|
|
else
|
|
{
|
|
bufferFormat = GL_RGBA;
|
|
}
|
|
}
|
|
|
|
level = attachment._level;
|
|
face = attachment._face;
|
|
|
|
if (renderTargetImplementation==osg::Camera::PIXEL_BUFFER_RTT)
|
|
{
|
|
traits->target = attachment._texture.valid() ? attachment._texture->getTextureTarget() : 0;
|
|
traits->format = bufferFormat;
|
|
traits->level = level;
|
|
traits->face = face;
|
|
traits->mipMapGeneration = attachment._mipMapGeneration;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
if (renderTargetImplementation==osg::Camera::SEPERATE_WINDOW)
|
|
osg::notify(osg::NOTICE)<<"Warning: RenderStage::runCameraSetUp(State&) Window ";
|
|
else
|
|
osg::notify(osg::NOTICE)<<"Warning: RenderStage::runCameraSetUp(State&) Pbuffer ";
|
|
|
|
osg::notify(osg::NOTICE)<<"does not support multiple color outputs."<<std::endl;
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
if (!depthAttached)
|
|
{
|
|
traits->depth = 24;
|
|
}
|
|
|
|
if (!colorAttached)
|
|
{
|
|
if (bufferFormat == GL_NONE) bufferFormat = GL_RGB;
|
|
|
|
traits->red = 8;
|
|
traits->green = 8;
|
|
traits->blue = 8;
|
|
traits->alpha = (bufferFormat==GL_RGBA) ? 8 : 0;
|
|
}
|
|
|
|
// share OpenGL objects if possible...
|
|
if (state.getGraphicsContext())
|
|
{
|
|
traits->sharedContext = state.getGraphicsContext();
|
|
|
|
const osg::GraphicsContext::Traits* sharedTraits = traits->sharedContext->getTraits();
|
|
if (sharedTraits)
|
|
{
|
|
traits->hostName = sharedTraits->hostName;
|
|
traits->displayNum = sharedTraits->displayNum;
|
|
traits->screenNum = sharedTraits->screenNum;
|
|
}
|
|
}
|
|
|
|
// create the graphics context according to these traits.
|
|
context = osg::GraphicsContext::createGraphicsContext(traits.get());
|
|
|
|
if (context.valid() && context->realize())
|
|
{
|
|
osg::notify(osg::INFO)<<"RenderStage::runCameraSetUp(State&) Context has been realized "<<std::endl;
|
|
|
|
// successfully set up graphics context as requested,
|
|
// will assign this graphics context to the RenderStage and
|
|
// associated parameters. Setting the graphics context will
|
|
// single this while loop to exit successful.
|
|
setGraphicsContext(context.get());
|
|
|
|
// how to do we detect that an attempt to set up RTT has failed??
|
|
|
|
setDrawBuffer(GL_FRONT);
|
|
setReadBuffer(GL_FRONT);
|
|
|
|
if (pBufferTexture && renderTargetImplementation==osg::Camera::PIXEL_BUFFER_RTT)
|
|
{
|
|
osg::notify(osg::INFO)<<"RenderStage::runCameraSetUp(State&) Assign graphis context to Texture"<<std::endl;
|
|
pBufferTexture->setReadPBuffer(context.get());
|
|
}
|
|
else
|
|
{
|
|
osg::notify(osg::INFO)<<"RenderStage::runCameraSetUp(State&) Assigning texture to RenderStage so that it does the copy"<<std::endl;
|
|
setTexture(pBufferTexture, level, face);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
osg::notify(osg::INFO)<<"Failed to acquire Graphics Context"<<std::endl;
|
|
|
|
if (renderTargetImplementation==osg::Camera::PIXEL_BUFFER_RTT)
|
|
{
|
|
// fallback to using standard PBuffer, this will allow this while loop to continue
|
|
if (renderTargetImplementation<renderTargetFallback)
|
|
renderTargetImplementation = renderTargetFallback;
|
|
else
|
|
renderTargetImplementation = osg::Camera::PIXEL_BUFFER;
|
|
}
|
|
else
|
|
{
|
|
renderTargetImplementation = osg::Camera::FRAME_BUFFER;
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
// finally if all else has failed, then the frame buffer fallback will come in to play.
|
|
if (renderTargetImplementation==osg::Camera::FRAME_BUFFER)
|
|
{
|
|
osg::notify(osg::INFO)<<"Setting up osg::Camera::FRAME_BUFFER"<<std::endl;
|
|
|
|
for(osg::Camera::BufferAttachmentMap::iterator itr = bufferAttachments.begin();
|
|
itr != bufferAttachments.end();
|
|
++itr)
|
|
{
|
|
// assign the texture...
|
|
if (itr->second._texture.valid()) setTexture(itr->second._texture.get(), itr->second._level, itr->second._face);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void RenderStage::copyTexture(osg::RenderInfo& renderInfo)
|
|
{
|
|
osg::State& state = *renderInfo.getState();
|
|
|
|
if ( _readBufferApplyMask )
|
|
{
|
|
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
|
|
glReadBuffer(_readBuffer);
|
|
#endif
|
|
}
|
|
|
|
// need to implement texture cube map etc...
|
|
osg::Texture1D* texture1D = 0;
|
|
osg::Texture2D* texture2D = 0;
|
|
osg::Texture3D* texture3D = 0;
|
|
osg::TextureRectangle* textureRec = 0;
|
|
osg::TextureCubeMap* textureCubeMap = 0;
|
|
|
|
// use TexCopySubImage with the offset of the viewport into the texture
|
|
// note, this path mirrors the pbuffer and fbo means for updating the texture.
|
|
// Robert Osfield, 3rd August 2006.
|
|
if ((texture2D = dynamic_cast<osg::Texture2D*>(_texture.get())) != 0)
|
|
{
|
|
texture2D->copyTexSubImage2D(state,
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->width()),
|
|
static_cast<int>(_viewport->height()));
|
|
}
|
|
else if ((textureRec = dynamic_cast<osg::TextureRectangle*>(_texture.get())) != 0)
|
|
{
|
|
textureRec->copyTexSubImage2D(state,
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->width()),
|
|
static_cast<int>(_viewport->height()));
|
|
}
|
|
else if ((texture1D = dynamic_cast<osg::Texture1D*>(_texture.get())) != 0)
|
|
{
|
|
// need to implement
|
|
texture1D->copyTexSubImage1D(state,
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->width()));
|
|
}
|
|
else if ((texture3D = dynamic_cast<osg::Texture3D*>(_texture.get())) != 0)
|
|
{
|
|
// need to implement
|
|
texture3D->copyTexSubImage3D(state,
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
_face,
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->width()),
|
|
static_cast<int>(_viewport->height()));
|
|
}
|
|
else if ((textureCubeMap = dynamic_cast<osg::TextureCubeMap*>(_texture.get())) != 0)
|
|
{
|
|
// need to implement
|
|
textureCubeMap->copyTexSubImageCubeMap(state, _face,
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->width()),
|
|
static_cast<int>(_viewport->height()));
|
|
}
|
|
}
|
|
|
|
void RenderStage::drawInner(osg::RenderInfo& renderInfo,RenderLeaf*& previous, bool& doCopyTexture)
|
|
{
|
|
struct SubFunc
|
|
{
|
|
static void applyReadFBO(bool& apply_read_fbo,
|
|
const FrameBufferObject* read_fbo, osg::State& state)
|
|
{
|
|
if (read_fbo->isMultisample())
|
|
{
|
|
osg::notify(osg::WARN) << "Attempting to read from a"
|
|
" multisampled framebuffer object. Set a resolve"
|
|
" framebuffer on the RenderStage to fix this." << std::endl;
|
|
}
|
|
|
|
if (apply_read_fbo)
|
|
{
|
|
// Bind the monosampled FBO to read from
|
|
read_fbo->apply(state, FrameBufferObject::READ_FRAMEBUFFER);
|
|
apply_read_fbo = false;
|
|
}
|
|
}
|
|
};
|
|
|
|
osg::State& state = *renderInfo.getState();
|
|
|
|
osg::FBOExtensions* fbo_ext = _fbo.valid() ? osg::FBOExtensions::instance(state.getContextID(),true) : 0;
|
|
bool fbo_supported = fbo_ext && fbo_ext->isSupported();
|
|
|
|
bool using_multiple_render_targets = fbo_supported && _fbo->hasMultipleRenderingTargets();
|
|
|
|
if (!using_multiple_render_targets)
|
|
{
|
|
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
|
|
|
|
if( getDrawBufferApplyMask() )
|
|
glDrawBuffer(_drawBuffer);
|
|
|
|
if( getReadBufferApplyMask() )
|
|
glReadBuffer(_readBuffer);
|
|
|
|
#endif
|
|
}
|
|
|
|
if (fbo_supported)
|
|
{
|
|
_fbo->apply(state);
|
|
}
|
|
|
|
// do the drawing itself.
|
|
RenderBin::draw(renderInfo,previous);
|
|
|
|
|
|
if(state.getCheckForGLErrors()!=osg::State::NEVER_CHECK_GL_ERRORS)
|
|
{
|
|
GLenum errorNo = glGetError();
|
|
if (errorNo!=GL_NO_ERROR)
|
|
{
|
|
#ifdef OSG_GLU_AVAILABLE
|
|
const char* error = (char*)gluErrorString(errorNo);
|
|
if (error) osg::notify(osg::NOTICE)<<"Warning: detected OpenGL error '"<<error<<"' after RenderBin::draw(,)"<<std::endl;
|
|
else osg::notify(osg::NOTICE)<<"Warning: detected OpenGL errorNo= 0x"<<std::hex<<errorNo<<" after RenderBin::draw(,)"<<std::dec<<std::endl;
|
|
#else
|
|
osg::notify(osg::NOTICE)<<"Warning: detected OpenGL errorNo= 0x"<<std::hex<<errorNo<<" after RenderBin::draw(,)"<<std::dec<<std::endl;
|
|
#endif
|
|
if ( fbo_ext )
|
|
{
|
|
GLenum fbstatus = fbo_ext->glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
|
|
if ( fbstatus != GL_FRAMEBUFFER_COMPLETE_EXT )
|
|
{
|
|
osg::notify(osg::NOTICE)<<"RenderStage::drawInner(,) FBO status = 0x"<<std::hex<<fbstatus<<std::dec<<std::endl;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const FrameBufferObject* read_fbo = fbo_supported ? _fbo.get() : 0;
|
|
bool apply_read_fbo = false;
|
|
|
|
if (fbo_supported && _resolveFbo.valid() && fbo_ext->glBlitFramebufferEXT)
|
|
{
|
|
GLbitfield blitMask = 0;
|
|
|
|
//find which buffer types should be copied
|
|
for (FrameBufferObject::AttachmentMap::const_iterator
|
|
it = _resolveFbo->getAttachmentMap().begin(),
|
|
end =_resolveFbo->getAttachmentMap().end(); it != end; ++it)
|
|
{
|
|
switch (it->first)
|
|
{
|
|
case Camera::DEPTH_BUFFER:
|
|
blitMask |= GL_DEPTH_BUFFER_BIT;
|
|
break;
|
|
case Camera::STENCIL_BUFFER:
|
|
blitMask |= GL_STENCIL_BUFFER_BIT;
|
|
break;
|
|
case Camera::PACKED_DEPTH_STENCIL_BUFFER:
|
|
blitMask |= GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT;
|
|
default:
|
|
blitMask |= GL_COLOR_BUFFER_BIT;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Bind the resolve framebuffer to blit into.
|
|
_fbo->apply(state, FrameBufferObject::READ_FRAMEBUFFER);
|
|
_resolveFbo->apply(state, FrameBufferObject::DRAW_FRAMEBUFFER);
|
|
|
|
// Blit to the resolve framebuffer.
|
|
// Note that (with nvidia 175.16 windows drivers at least) if the read
|
|
// framebuffer is multisampled then the dimension arguments are ignored
|
|
// and the whole framebuffer is always copied.
|
|
fbo_ext->glBlitFramebufferEXT(
|
|
0, 0, static_cast<GLint>(_viewport->width()), static_cast<GLint>(_viewport->height()),
|
|
0, 0, static_cast<GLint>(_viewport->width()), static_cast<GLint>(_viewport->height()),
|
|
blitMask, GL_NEAREST);
|
|
|
|
apply_read_fbo = true;
|
|
read_fbo = _resolveFbo.get();
|
|
|
|
using_multiple_render_targets = read_fbo->hasMultipleRenderingTargets();
|
|
}
|
|
|
|
// now copy the rendered image to attached texture.
|
|
if (doCopyTexture)
|
|
{
|
|
if (read_fbo) SubFunc::applyReadFBO(apply_read_fbo, read_fbo, state);
|
|
copyTexture(renderInfo);
|
|
}
|
|
|
|
std::map< osg::Camera::BufferComponent, Attachment>::const_iterator itr;
|
|
for(itr = _bufferAttachmentMap.begin();
|
|
itr != _bufferAttachmentMap.end();
|
|
++itr)
|
|
{
|
|
if (itr->second._image.valid())
|
|
{
|
|
if (read_fbo) SubFunc::applyReadFBO(apply_read_fbo, read_fbo, state);
|
|
|
|
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
|
|
|
|
if (using_multiple_render_targets)
|
|
{
|
|
int attachment=itr->first;
|
|
if (attachment==osg::Camera::DEPTH_BUFFER || attachment==osg::Camera::STENCIL_BUFFER) {
|
|
// assume first buffer rendered to is the one we want
|
|
glReadBuffer(read_fbo->getMultipleRenderingTargets()[0]);
|
|
} else {
|
|
glReadBuffer(GL_COLOR_ATTACHMENT0_EXT + (attachment - osg::Camera::COLOR_BUFFER0));
|
|
}
|
|
} else {
|
|
if (_readBuffer != GL_NONE)
|
|
{
|
|
glReadBuffer(_readBuffer);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
GLenum pixelFormat = itr->second._image->getPixelFormat();
|
|
if (pixelFormat==0) pixelFormat = _imageReadPixelFormat;
|
|
if (pixelFormat==0) pixelFormat = GL_RGB;
|
|
|
|
GLenum dataType = itr->second._image->getDataType();
|
|
if (dataType==0) dataType = _imageReadPixelDataType;
|
|
if (dataType==0) dataType = GL_UNSIGNED_BYTE;
|
|
|
|
itr->second._image->readPixels(static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->width()),
|
|
static_cast<int>(_viewport->height()),
|
|
pixelFormat, dataType);
|
|
}
|
|
}
|
|
|
|
if (fbo_supported)
|
|
{
|
|
if (getDisableFboAfterRender())
|
|
{
|
|
// switch off the frame buffer object
|
|
fbo_ext->glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
|
|
}
|
|
|
|
doCopyTexture = true;
|
|
}
|
|
|
|
if (fbo_supported && _camera)
|
|
{
|
|
// now generate mipmaps if they are required.
|
|
const osg::Camera::BufferAttachmentMap& bufferAttachments = _camera->getBufferAttachmentMap();
|
|
for(osg::Camera::BufferAttachmentMap::const_iterator itr = bufferAttachments.begin();
|
|
itr != bufferAttachments.end();
|
|
++itr)
|
|
{
|
|
if (itr->second._texture.valid() && itr->second._mipMapGeneration)
|
|
{
|
|
state.setActiveTextureUnit(0);
|
|
state.applyTextureAttribute(0, itr->second._texture.get());
|
|
fbo_ext->glGenerateMipmapEXT(itr->second._texture->getTextureTarget());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
struct DrawInnerOperation : public osg::Operation
|
|
{
|
|
DrawInnerOperation(RenderStage* stage, osg::RenderInfo& renderInfo) :
|
|
osg::Operation("DrawInnerStage",false),
|
|
_stage(stage),
|
|
_renderInfo(renderInfo) {}
|
|
|
|
virtual void operator () (osg::Object* object)
|
|
{
|
|
osg::GraphicsContext* context = dynamic_cast<osg::GraphicsContext*>(object);
|
|
if (!context) return;
|
|
|
|
// osg::notify(osg::NOTICE)<<"DrawInnerOperation operator"<<std::endl;
|
|
if (_stage && context)
|
|
{
|
|
RenderLeaf* previous = 0;
|
|
bool doCopyTexture = false;
|
|
_renderInfo.setState(context->getState());
|
|
_stage->drawInner(_renderInfo, previous, doCopyTexture);
|
|
}
|
|
}
|
|
|
|
RenderStage* _stage;
|
|
RenderInfo _renderInfo;
|
|
};
|
|
|
|
|
|
void RenderStage::draw(osg::RenderInfo& renderInfo,RenderLeaf*& previous)
|
|
{
|
|
if (_stageDrawnThisFrame) return;
|
|
|
|
// push the stages camera so that drawing code can query it
|
|
if (_camera) renderInfo.pushCamera(_camera);
|
|
|
|
_stageDrawnThisFrame = true;
|
|
|
|
if (_camera && _camera->getInitialDrawCallback())
|
|
{
|
|
// if we have a camera with a intial draw callback invoke it.
|
|
(*(_camera->getInitialDrawCallback()))(renderInfo);
|
|
}
|
|
|
|
// note, SceneView does call to drawPreRenderStages explicitly
|
|
// so there is no need to call it here.
|
|
drawPreRenderStages(renderInfo,previous);
|
|
|
|
if (_cameraRequiresSetUp)
|
|
{
|
|
runCameraSetUp(renderInfo);
|
|
}
|
|
|
|
osg::State& state = *renderInfo.getState();
|
|
|
|
osg::State* useState = &state;
|
|
osg::GraphicsContext* callingContext = state.getGraphicsContext();
|
|
osg::GraphicsContext* useContext = callingContext;
|
|
osg::OperationThread* useThread = 0;
|
|
osg::RenderInfo useRenderInfo(renderInfo);
|
|
|
|
RenderLeaf* saved_previous = previous;
|
|
|
|
if (_graphicsContext.valid() && _graphicsContext != callingContext)
|
|
{
|
|
// show we release the context so that others can use it?? will do so right
|
|
// now as an experiment.
|
|
callingContext->releaseContext();
|
|
|
|
// osg::notify(osg::NOTICE)<<" enclosing state before - "<<state.getStateSetStackSize()<<std::endl;
|
|
|
|
useState = _graphicsContext->getState();
|
|
useContext = _graphicsContext.get();
|
|
useThread = useContext->getGraphicsThread();
|
|
useRenderInfo.setState(useState);
|
|
|
|
// synchronize the frame stamps
|
|
useState->setFrameStamp(const_cast<osg::FrameStamp*>(state.getFrameStamp()));
|
|
|
|
// map the DynamicObjectCount across to the new window
|
|
useState->setDynamicObjectCount(state.getDynamicObjectCount());
|
|
useState->setDynamicObjectRenderingCompletedCallback(state.getDynamicObjectRenderingCompletedCallback());
|
|
|
|
if (!useThread)
|
|
{
|
|
previous = 0;
|
|
useContext->makeCurrent();
|
|
|
|
// osg::notify(osg::NOTICE)<<" nested state before - "<<useState->getStateSetStackSize()<<std::endl;
|
|
}
|
|
}
|
|
|
|
unsigned int originalStackSize = useState->getStateSetStackSize();
|
|
|
|
if (_camera && _camera->getPreDrawCallback())
|
|
{
|
|
// if we have a camera with a pre draw callback invoke it.
|
|
(*(_camera->getPreDrawCallback()))(renderInfo);
|
|
}
|
|
|
|
bool doCopyTexture = _texture.valid() ?
|
|
(callingContext != useContext) :
|
|
false;
|
|
|
|
if (useThread)
|
|
{
|
|
#if 1
|
|
ref_ptr<osg::BlockAndFlushOperation> block = new osg::BlockAndFlushOperation;
|
|
|
|
useThread->add(new DrawInnerOperation( this, renderInfo ));
|
|
|
|
useThread->add(block.get());
|
|
|
|
// wait till the DrawInnerOperations is complete.
|
|
block->block();
|
|
|
|
doCopyTexture = false;
|
|
|
|
#else
|
|
useThread->add(new DrawInnerOperation( this, renderInfo ), true);
|
|
|
|
doCopyTexture = false;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
drawInner( useRenderInfo, previous, doCopyTexture);
|
|
|
|
if (useRenderInfo.getUserData() != renderInfo.getUserData())
|
|
{
|
|
renderInfo.setUserData(useRenderInfo.getUserData());
|
|
}
|
|
|
|
}
|
|
|
|
if (useState != &state)
|
|
{
|
|
// reset the local State's DynamicObjectCount
|
|
state.setDynamicObjectCount(useState->getDynamicObjectCount());
|
|
useState->setDynamicObjectRenderingCompletedCallback(0);
|
|
}
|
|
|
|
|
|
// now copy the rendered image to attached texture.
|
|
if (_texture.valid() && !doCopyTexture)
|
|
{
|
|
if (callingContext && useContext!= callingContext)
|
|
{
|
|
// make the calling context use the pbuffer context for reading.
|
|
callingContext->makeContextCurrent(useContext);
|
|
}
|
|
|
|
copyTexture(renderInfo);
|
|
}
|
|
|
|
if (_camera && _camera->getPostDrawCallback())
|
|
{
|
|
// if we have a camera with a post draw callback invoke it.
|
|
(*(_camera->getPostDrawCallback()))(renderInfo);
|
|
}
|
|
|
|
if (_graphicsContext.valid() && _graphicsContext != callingContext)
|
|
{
|
|
useState->popStateSetStackToSize(originalStackSize);
|
|
|
|
if (!useThread)
|
|
{
|
|
|
|
|
|
// flush any command left in the useContex's FIFO
|
|
// to ensure that textures are updated before main thread commenses.
|
|
glFlush();
|
|
|
|
|
|
useContext->releaseContext();
|
|
}
|
|
}
|
|
|
|
if (callingContext && useContext != callingContext)
|
|
{
|
|
// restore the graphics context.
|
|
|
|
previous = saved_previous;
|
|
|
|
// osg::notify(osg::NOTICE)<<" nested state after - "<<useState->getStateSetStackSize()<<std::endl;
|
|
// osg::notify(osg::NOTICE)<<" enclosing state after - "<<state.getStateSetStackSize()<<std::endl;
|
|
|
|
callingContext->makeCurrent();
|
|
}
|
|
|
|
// render all the post draw callbacks
|
|
drawPostRenderStages(renderInfo,previous);
|
|
|
|
if (_camera && _camera->getFinalDrawCallback())
|
|
{
|
|
// if we have a camera with a final callback invoke it.
|
|
(*(_camera->getFinalDrawCallback()))(renderInfo);
|
|
}
|
|
|
|
// pop the render stages camera.
|
|
if (_camera) renderInfo.popCamera();
|
|
}
|
|
|
|
void RenderStage::drawImplementation(osg::RenderInfo& renderInfo,RenderLeaf*& previous)
|
|
{
|
|
osg::State& state = *renderInfo.getState();
|
|
|
|
if (!_viewport)
|
|
{
|
|
notify(FATAL) << "Error: cannot draw stage due to undefined viewport."<< std::endl;
|
|
return;
|
|
}
|
|
|
|
// set up the back buffer.
|
|
state.applyAttribute(_viewport.get());
|
|
|
|
glScissor( static_cast<int>(_viewport->x()),
|
|
static_cast<int>(_viewport->y()),
|
|
static_cast<int>(_viewport->width()),
|
|
static_cast<int>(_viewport->height()) );
|
|
//cout << " clearing "<<this<< " "<<_viewport->x()<<","<< _viewport->y()<<","<< _viewport->width()<<","<< _viewport->height()<<std::endl;
|
|
state.applyMode( GL_SCISSOR_TEST, true );
|
|
|
|
// glEnable( GL_DEPTH_TEST );
|
|
|
|
// set which color planes to operate on.
|
|
if (_colorMask.valid()) _colorMask->apply(state);
|
|
else glColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE);
|
|
|
|
if (_clearMask & GL_COLOR_BUFFER_BIT)
|
|
{
|
|
glClearColor( _clearColor[0], _clearColor[1], _clearColor[2], _clearColor[3]);
|
|
}
|
|
|
|
if (_clearMask & GL_DEPTH_BUFFER_BIT)
|
|
{
|
|
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
|
|
glClearDepth( _clearDepth);
|
|
#else
|
|
glClearDepthf( _clearDepth);
|
|
#endif
|
|
|
|
glDepthMask ( GL_TRUE );
|
|
state.haveAppliedAttribute( osg::StateAttribute::DEPTH );
|
|
}
|
|
|
|
if (_clearMask & GL_STENCIL_BUFFER_BIT)
|
|
{
|
|
glClearStencil( _clearStencil);
|
|
glStencilMask ( ~0u );
|
|
state.haveAppliedAttribute( osg::StateAttribute::STENCIL );
|
|
}
|
|
|
|
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE)
|
|
if (_clearMask & GL_ACCUM_BUFFER_BIT)
|
|
{
|
|
glClearAccum( _clearAccum[0], _clearAccum[1], _clearAccum[2], _clearAccum[3]);
|
|
}
|
|
#endif
|
|
|
|
|
|
glClear( _clearMask );
|
|
|
|
#ifdef USE_SCISSOR_TEST
|
|
glDisable( GL_SCISSOR_TEST );
|
|
#endif
|
|
|
|
#ifdef OSG_GL_MATRICES_AVAILABLE
|
|
glMatrixMode( GL_MODELVIEW );
|
|
glLoadIdentity();
|
|
#endif
|
|
|
|
// apply the positional state.
|
|
if (_inheritedPositionalStateContainer.valid())
|
|
{
|
|
_inheritedPositionalStateContainer->draw(state, previous, &_inheritedPositionalStateContainerMatrix);
|
|
}
|
|
|
|
// apply the positional state.
|
|
if (_renderStageLighting.valid())
|
|
{
|
|
_renderStageLighting->draw(state, previous, 0);
|
|
}
|
|
|
|
// draw the children and local.
|
|
RenderBin::drawImplementation(renderInfo,previous);
|
|
|
|
state.apply();
|
|
|
|
}
|
|
|
|
void RenderStage::drawPostRenderStages(osg::RenderInfo& renderInfo,RenderLeaf*& previous)
|
|
{
|
|
if (_postRenderList.empty()) return;
|
|
|
|
//cout << "Drawing prerendering stages "<<this<< " "<<_viewport->x()<<","<< _viewport->y()<<","<< _viewport->width()<<","<< _viewport->height()<<std::endl;
|
|
for(RenderStageList::iterator itr=_postRenderList.begin();
|
|
itr!=_postRenderList.end();
|
|
++itr)
|
|
{
|
|
itr->second->draw(renderInfo,previous);
|
|
}
|
|
//cout << "Done Drawing prerendering stages "<<this<< " "<<_viewport->x()<<","<< _viewport->y()<<","<< _viewport->width()<<","<< _viewport->height()<<std::endl;
|
|
}
|
|
|
|
// Statistics features
|
|
bool RenderStage::getStats(Statistics& stats) const
|
|
{
|
|
bool statsCollected = false;
|
|
|
|
for(RenderStageList::const_iterator pre_itr = _preRenderList.begin();
|
|
pre_itr != _preRenderList.end();
|
|
++pre_itr)
|
|
{
|
|
if (pre_itr->second->getStats(stats))
|
|
{
|
|
statsCollected = true;
|
|
}
|
|
}
|
|
|
|
for(RenderStageList::const_iterator post_itr = _postRenderList.begin();
|
|
post_itr != _postRenderList.end();
|
|
++post_itr)
|
|
{
|
|
if (post_itr->second->getStats(stats))
|
|
{
|
|
statsCollected = true;
|
|
}
|
|
}
|
|
|
|
if (RenderBin::getStats(stats))
|
|
{
|
|
statsCollected = true;
|
|
}
|
|
return statsCollected;
|
|
}
|
|
|
|
void RenderStage::attach(osg::Camera::BufferComponent buffer, osg::Image* image)
|
|
{
|
|
_bufferAttachmentMap[buffer]._image = image;
|
|
}
|
|
|
|
unsigned int RenderStage::computeNumberOfDynamicRenderLeaves() const
|
|
{
|
|
unsigned int count = 0;
|
|
|
|
for(RenderStageList::const_iterator pre_itr = _preRenderList.begin();
|
|
pre_itr != _preRenderList.end();
|
|
++pre_itr)
|
|
{
|
|
count += pre_itr->second->computeNumberOfDynamicRenderLeaves();
|
|
}
|
|
|
|
count += RenderBin::computeNumberOfDynamicRenderLeaves();
|
|
|
|
for(RenderStageList::const_iterator post_itr = _postRenderList.begin();
|
|
post_itr != _postRenderList.end();
|
|
++post_itr)
|
|
{
|
|
count += post_itr->second->computeNumberOfDynamicRenderLeaves();
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
|
|
void RenderStage::setMultisampleResolveFramebufferObject(osg::FrameBufferObject* fbo)
|
|
{
|
|
if (fbo && fbo->isMultisample())
|
|
{
|
|
osg::notify(osg::WARN) << "Resolve framebuffer must not be"
|
|
" multisampled." << std::endl;
|
|
}
|
|
_resolveFbo = fbo;
|
|
}
|
|
|
|
void RenderStage::collateReferencesToDependentCameras()
|
|
{
|
|
_dependentCameras.clear();
|
|
|
|
for(RenderStageList::iterator itr = _preRenderList.begin();
|
|
itr != _preRenderList.end();
|
|
++itr)
|
|
{
|
|
itr->second->collateReferencesToDependentCameras();
|
|
osg::Camera* camera = itr->second->getCamera();
|
|
if (camera) _dependentCameras.push_back(camera);
|
|
}
|
|
|
|
for(RenderStageList::iterator itr = _postRenderList.begin();
|
|
itr != _postRenderList.end();
|
|
++itr)
|
|
{
|
|
itr->second->collateReferencesToDependentCameras();
|
|
osg::Camera* camera = itr->second->getCamera();
|
|
if (camera) _dependentCameras.push_back(camera);
|
|
}
|
|
}
|
|
|
|
void RenderStage::clearReferencesToDependentCameras()
|
|
{
|
|
for(RenderStageList::iterator itr = _preRenderList.begin();
|
|
itr != _preRenderList.end();
|
|
++itr)
|
|
{
|
|
itr->second->collateReferencesToDependentCameras();
|
|
}
|
|
|
|
for(RenderStageList::iterator itr = _postRenderList.begin();
|
|
itr != _postRenderList.end();
|
|
++itr)
|
|
{
|
|
itr->second->collateReferencesToDependentCameras();
|
|
}
|
|
|
|
_dependentCameras.clear();
|
|
}
|