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Port global map exploration

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c++11
scrawl 10 years ago
parent 7a1408cfed
commit 6d3528af70
5 changed files with 255 additions and 53 deletions
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9
apps/openmw/mwgui/mapwindow.cpp
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@ -587,7 +587,7 @@ namespace MWGui
, mGlobal(false)
, mEventBoxGlobal(NULL)
, mEventBoxLocal(NULL)
, mGlobalMapRender(0)
, mGlobalMapRender(new MWRender::GlobalMap(localMapRender->getRoot()))
, mEditNoteDialog()
{
static bool registered = false;
@ -730,7 +730,6 @@ namespace MWGui
void MapWindow::renderGlobalMap(Loading::Listener* loadingListener)
{
mGlobalMapRender = new MWRender::GlobalMap();
mGlobalMapRender->render(loadingListener);
mGlobalMap->setCanvasSize (mGlobalMapRender->getWidth(), mGlobalMapRender->getHeight());
mGlobalMapImage->setSize(mGlobalMapRender->getWidth(), mGlobalMapRender->getHeight());
@ -794,9 +793,11 @@ namespace MWGui
{
LocalMapBase::onFrame(dt);
mGlobalMapRender->cleanupCameras();
for (std::vector<CellId>::iterator it = mQueuedToExplore.begin(); it != mQueuedToExplore.end(); ++it)
{
mGlobalMapRender->exploreCell(it->first, it->second);
mGlobalMapRender->exploreCell(it->first, it->second, mLocalMapRender->getMapTexture(it->first, it->second));
}
mQueuedToExplore.clear();
@ -866,6 +867,8 @@ namespace MWGui
void MapWindow::notifyPlayerUpdate ()
{
globalMapUpdatePlayer ();
setGlobalMapPlayerDir(mLastDirectionX, mLastDirectionY);
}
void MapWindow::setGlobalMapPlayerPosition(float worldX, float worldY)

239
apps/openmw/mwrender/globalmap.cpp
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@ -4,6 +4,10 @@
#include <osg/Image>
#include <osg/Texture2D>
#include <osg/Group>
#include <osg/Geometry>
#include <osg/Geode>
#include <osg/Depth>
#include <osgDB/WriteFile>
@ -18,11 +22,66 @@
#include "../mwworld/esmstore.hpp"
#include "vismask.hpp"
namespace
{
// Create a screen-aligned quad with given texture coordinates.
// Assumes a top-left origin of the sampled image.
osg::ref_ptr<osg::Geometry> createTexturedQuad(float leftTexCoord, float topTexCoord, float rightTexCoord, float bottomTexCoord)
{
osg::ref_ptr<osg::Geometry> geom = new osg::Geometry;
osg::ref_ptr<osg::Vec3Array> verts = new osg::Vec3Array;
verts->push_back(osg::Vec3f(-1, -1, 0));
verts->push_back(osg::Vec3f(-1, 1, 0));
verts->push_back(osg::Vec3f(1, 1, 0));
verts->push_back(osg::Vec3f(1, -1, 0));
geom->setVertexArray(verts);
osg::ref_ptr<osg::Vec2Array> texcoords = new osg::Vec2Array;
texcoords->push_back(osg::Vec2f(leftTexCoord, 1.f-bottomTexCoord));
texcoords->push_back(osg::Vec2f(leftTexCoord, 1.f-topTexCoord));
texcoords->push_back(osg::Vec2f(rightTexCoord, 1.f-topTexCoord));
texcoords->push_back(osg::Vec2f(rightTexCoord, 1.f-bottomTexCoord));
geom->setTexCoordArray(0, texcoords, osg::Array::BIND_PER_VERTEX);
geom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
return geom;
}
class CameraUpdateCallback : public osg::NodeCallback
{
public:
CameraUpdateCallback(osg::Camera* cam, MWRender::GlobalMap* parent)
: mCamera(cam), mParent(parent)
{
}
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
mParent->markForRemoval(mCamera);
traverse(node, nv);
}
private:
osg::ref_ptr<osg::Camera> mCamera;
MWRender::GlobalMap* mParent;
};
}
namespace MWRender
{
GlobalMap::GlobalMap()
: mWidth(0)
GlobalMap::GlobalMap(osg::Group* root)
: mRoot(root)
, mWidth(0)
, mHeight(0)
, mMinX(0), mMaxX(0)
, mMinY(0), mMaxY(0)
@ -164,46 +223,78 @@ namespace MWRender
imageY = 1.f-float(y - mMinY + 1) / (mMaxY - mMinY + 1);
}
void GlobalMap::exploreCell(int cellX, int cellY)
void GlobalMap::requestOverlayTextureUpdate(int x, int y, int width, int height, osg::ref_ptr<osg::Texture2D> texture, bool clear, bool cpuCopy,
float srcLeft, float srcTop, float srcRight, float srcBottom)
{
//float originX = static_cast<float>((cellX - mMinX) * mCellSize);
// NB y + 1, because we want the top left corner, not bottom left where the origin of the cell is
//float originY = static_cast<float>(mHeight - (cellY + 1 - mMinY) * mCellSize);
osg::ref_ptr<osg::Camera> camera (new osg::Camera);
camera->setNodeMask(Mask_RenderToTexture);
camera->setReferenceFrame(osg::Camera::ABSOLUTE_RF);
camera->setViewMatrix(osg::Matrix::identity());
camera->setProjectionMatrix(osg::Matrix::identity());
camera->setProjectionResizePolicy(osg::Camera::FIXED);
camera->setRenderOrder(osg::Camera::PRE_RENDER);
camera->setViewport(x, y, width, height);
if (clear)
{
camera->setClearMask(GL_COLOR_BUFFER_BIT);
camera->setClearColor(osg::Vec4(0,0,0,0));
}
else
camera->setClearMask(GL_NONE);
if (cellX > mMaxX || cellX < mMinX || cellY > mMaxY || cellY < mMinY)
return;
camera->setUpdateCallback(new CameraUpdateCallback(camera, this));
/*
Ogre::TexturePtr localMapTexture = Ogre::TextureManager::getSingleton().getByName("Cell_"
+ boost::lexical_cast<std::string>(cellX) + "_" + boost::lexical_cast<std::string>(cellY));
camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT, osg::Camera::PIXEL_BUFFER_RTT);
camera->attach(osg::Camera::COLOR_BUFFER, mOverlayTexture);
if (!localMapTexture.isNull())
if (cpuCopy)
{
int mapWidth = localMapTexture->getWidth();
int mapHeight = localMapTexture->getHeight();
mOverlayTexture->load();
mOverlayTexture->getBuffer()->blit(localMapTexture->getBuffer(), Ogre::Image::Box(0,0,mapWidth,mapHeight),
Ogre::Image::Box(static_cast<Ogre::uint32>(originX), static_cast<Ogre::uint32>(originY),
static_cast<Ogre::uint32>(originX + mCellSize), static_cast<Ogre::uint32>(originY + mCellSize)));
Ogre::Image backup;
std::vector<Ogre::uchar> data;
data.resize(mCellSize*mCellSize*4, 0);
backup.loadDynamicImage(&data[0], mCellSize, mCellSize, Ogre::PF_A8B8G8R8);
localMapTexture->getBuffer()->blitToMemory(Ogre::Image::Box(0,0,mapWidth,mapHeight), backup.getPixelBox());
for (int x=0; x<mCellSize; ++x)
for (int y=0; y<mCellSize; ++y)
{
assert (originX+x < mOverlayImage.getWidth());
assert (originY+y < mOverlayImage.getHeight());
assert (x < int(backup.getWidth()));
assert (y < int(backup.getHeight()));
mOverlayImage.setColourAt(backup.getColourAt(x, y, 0), static_cast<size_t>(originX + x), static_cast<size_t>(originY + y), 0);
}
// Attach an image to copy the render back to the CPU when finished
osg::ref_ptr<osg::Image> image (new osg::Image);
image->setPixelFormat(mOverlayImage->getPixelFormat());
image->setDataType(mOverlayImage->getDataType());
camera->attach(osg::Camera::COLOR_BUFFER, image);
// FIXME: why does the image get slightly darker by the read back?
ImageDest imageDest;
imageDest.mImage = image;
imageDest.mX = x;
imageDest.mY = y;
mPendingImageDest.push_back(imageDest);
}
// Create a quad rendering the updated texture
if (texture)
{
osg::ref_ptr<osg::Geometry> geom = createTexturedQuad(srcLeft, srcTop, srcRight, srcBottom);
osg::ref_ptr<osg::Depth> depth = new osg::Depth;
depth->setFunction(osg::Depth::ALWAYS);
geom->getOrCreateStateSet()->setAttributeAndModes(depth, osg::StateAttribute::ON);
geom->getOrCreateStateSet()->setTextureAttributeAndModes(0, texture, osg::StateAttribute::ON);
geom->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
osg::ref_ptr<osg::Geode> geode = new osg::Geode;
geode->addDrawable(geom);
camera->addChild(geode);
}
*/
mRoot->addChild(camera);
mActiveCameras.push_back(camera);
}
void GlobalMap::exploreCell(int cellX, int cellY, osg::ref_ptr<osg::Texture2D> localMapTexture)
{
if (!localMapTexture)
return;
int originX = (cellX - mMinX) * mCellSize;
int originY = (cellY - mMinY) * mCellSize;
if (cellX > mMaxX || cellX < mMinX || cellY > mMaxY || cellY < mMinY)
return;
requestOverlayTextureUpdate(originX, originY, mCellSize, mCellSize, localMapTexture, false, true);
}
void GlobalMap::clear()
@ -215,7 +306,6 @@ namespace MWRender
assert(mOverlayImage->isDataContiguous());
}
memset(mOverlayImage->data(), 0, mOverlayImage->getTotalSizeInBytes());
mOverlayImage->dirty();
if (!mOverlayTexture)
{
@ -224,9 +314,16 @@ namespace MWRender
mOverlayTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
mOverlayTexture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR);
mOverlayTexture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
mOverlayTexture->setImage(mOverlayImage);
mOverlayTexture->setResizeNonPowerOfTwoHint(false);
mOverlayTexture->setInternalFormat(GL_RGBA);
mOverlayTexture->setTextureSize(mWidth, mHeight);
}
mPendingImageDest.clear();
// just push a Camera to clear the FBO, instead of setImage()/dirty()
// easier, since we don't need to worry about synchronizing access :)
requestOverlayTextureUpdate(0, 0, mWidth, mHeight, osg::ref_ptr<osg::Texture2D>(), true, false);
}
void GlobalMap::write(ESM::GlobalMap& map)
@ -257,11 +354,15 @@ namespace MWRender
struct Box
{
int mLeft, mRight, mTop, mBottom;
int mLeft, mTop, mRight, mBottom;
Box(int left, int right, int top, int bottom)
: mLeft(left), mRight(right), mTop(top), mBottom(bottom)
Box(int left, int top, int right, int bottom)
: mLeft(left), mTop(top), mRight(right), mBottom(bottom)
{
}
bool operator == (const Box& other)
{
return mLeft == other.mLeft && mTop == other.mTop && mRight == other.mRight && mBottom == other.mBottom;
}
};
@ -336,20 +437,29 @@ namespace MWRender
std::min(mWidth, mWidth + rightDiff * cellImageSizeDst),
std::min(mHeight, mHeight + bottomDiff * cellImageSizeDst));
if (srcBox.mLeft == destBox.mLeft && srcBox.mRight == destBox.mRight
&& srcBox.mTop == destBox.mTop && srcBox.mBottom == destBox.mBottom
&& imageWidth == mWidth && imageHeight == mHeight)
osg::ref_ptr<osg::Texture2D> texture (new osg::Texture2D);
texture->setImage(image);
texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
texture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR);
texture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
texture->setResizeNonPowerOfTwoHint(false);
if (srcBox == destBox && imageWidth == mWidth && imageHeight == mHeight)
{
mOverlayImage->copySubImage(0, 0, 0, image);
requestOverlayTextureUpdate(0, 0, mWidth, mHeight, texture, true, false);
}
else
{
// TODO:
// Dimensions don't match. This could mean a changed map region, or a changed map resolution.
// In the latter case, we'll want to use filtering.
// Create a RTT Camera and draw the image onto mOverlayImage in the next frame?
// In the latter case, we'll want filtering.
// Create a RTT Camera and draw the image onto mOverlayImage in the next frame.
requestOverlayTextureUpdate(destBox.mLeft, destBox.mTop, destBox.mRight-destBox.mLeft, destBox.mBottom-destBox.mTop, texture, true, true,
srcBox.mLeft/float(imageWidth), srcBox.mTop/float(imageHeight),
srcBox.mRight/float(imageWidth), srcBox.mBottom/float(imageHeight));
}
mOverlayImage->dirty();
}
osg::ref_ptr<osg::Texture2D> GlobalMap::getBaseTexture()
@ -361,4 +471,37 @@ namespace MWRender
{
return mOverlayTexture;
}
void GlobalMap::markForRemoval(osg::Camera *camera)
{
CameraVector::iterator found = std::find(mActiveCameras.begin(), mActiveCameras.end(), camera);
if (found == mActiveCameras.end())
{
std::cerr << "GlobalMap trying to remove an inactive camera" << std::endl;
return;
}
mActiveCameras.erase(found);
mCamerasPendingRemoval.push_back(camera);
}
void GlobalMap::cleanupCameras()
{
for (CameraVector::iterator it = mCamerasPendingRemoval.begin(); it != mCamerasPendingRemoval.end(); ++it)
mRoot->removeChild(*it);
mCamerasPendingRemoval.clear();
for (ImageDestVector::iterator it = mPendingImageDest.begin(); it != mPendingImageDest.end();)
{
ImageDest& imageDest = *it;
if (--imageDest.mFramesUntilDone > 0)
{
++it;
continue;
}
mOverlayImage->copySubImage(imageDest.mX, imageDest.mY, 0, imageDest.mImage);
it = mPendingImageDest.erase(it);
}
}
}

53
apps/openmw/mwrender/globalmap.hpp
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@ -10,6 +10,8 @@ namespace osg
{
class Texture2D;
class Image;
class Group;
class Camera;
}
namespace Loading
@ -28,7 +30,7 @@ namespace MWRender
class GlobalMap
{
public:
GlobalMap();
GlobalMap(osg::Group* root);
~GlobalMap();
void render(Loading::Listener* loadingListener);
@ -42,11 +44,23 @@ namespace MWRender
void cellTopLeftCornerToImageSpace(int x, int y, float& imageX, float& imageY);
void exploreCell (int cellX, int cellY);
void exploreCell (int cellX, int cellY, osg::ref_ptr<osg::Texture2D> localMapTexture);
/// Clears the overlay
void clear();
/**
* Removes cameras that have already been rendered. Should be called every frame to ensure that
* we do not render the same map more than once. Note, this cleanup is difficult to implement in an
* automated fashion, since we can't alter the scene graph structure from within an update callback.
*/
void cleanupCameras();
/**
* Mark a camera for cleanup in the next update. For internal use only.
*/
void markForRemoval(osg::Camera* camera);
void write (ESM::GlobalMap& map);
void read (ESM::GlobalMap& map);
@ -54,13 +68,48 @@ namespace MWRender
osg::ref_ptr<osg::Texture2D> getOverlayTexture();
private:
/**
* Request rendering a 2d quad onto mOverlayTexture.
* x, y, width and height are the destination coordinates.
* @param cpuCopy copy the resulting render onto mOverlayImage as well?
*/
void requestOverlayTextureUpdate(int x, int y, int width, int height, osg::ref_ptr<osg::Texture2D> texture, bool clear, bool cpuCopy,
float srcLeft = 0.f, float srcTop = 0.f, float srcRight = 1.f, float srcBottom = 1.f);
int mCellSize;
osg::ref_ptr<osg::Group> mRoot;
typedef std::vector<osg::ref_ptr<osg::Camera> > CameraVector;
CameraVector mActiveCameras;
CameraVector mCamerasPendingRemoval;
struct ImageDest
{
ImageDest()
: mFramesUntilDone(3) // wait an extra frame to ensure the draw thread has completed its frame.
{
}
osg::ref_ptr<osg::Image> mImage;
int mX, mY;
int mFramesUntilDone;
};
typedef std::vector<ImageDest> ImageDestVector;
ImageDestVector mPendingImageDest;
std::vector< std::pair<int,int> > mExploredCells;
osg::ref_ptr<osg::Texture2D> mBaseTexture;
// GPU copy of overlay
// Note, uploads are pushed through a Camera, instead of through mOverlayImage
osg::ref_ptr<osg::Texture2D> mOverlayTexture;
// CPU copy of overlay
osg::ref_ptr<osg::Image> mOverlayImage;
int mWidth;

5
apps/openmw/mwrender/localmap.cpp
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@ -480,6 +480,11 @@ bool LocalMap::isPositionExplored (float nX, float nY, int x, int y, bool interi
return alpha < 200;
}
osg::Group* LocalMap::getRoot()
{
return mRoot;
}
void LocalMap::updatePlayer (const osg::Vec3f& position, const osg::Quat& orientation,
float& u, float& v, int& x, int& y, osg::Vec3f& direction)
{

2
apps/openmw/mwrender/localmap.hpp
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@ -101,6 +101,8 @@ namespace MWRender
*/
bool isPositionExplored (float nX, float nY, int x, int y, bool interior);
osg::Group* getRoot();
private:
osg::ref_ptr<osgViewer::Viewer> mViewer;

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