mirror of
https://github.com/OpenMW/openmw.git
synced 2025-10-31 05:26:41 +00:00
563 lines
15 KiB
C++
563 lines
15 KiB
C++
#include "myguirendermanager.hpp"
|
|
|
|
#include <MyGUI_Gui.h>
|
|
#include <MyGUI_Timer.h>
|
|
|
|
#include <osg/Drawable>
|
|
#include <osg/BlendFunc>
|
|
#include <osg/Texture2D>
|
|
#include <osg/TexMat>
|
|
|
|
#include <osgViewer/Viewer>
|
|
|
|
#include <osgGA/GUIEventHandler>
|
|
|
|
#include <components/resource/imagemanager.hpp>
|
|
|
|
#include "myguitexture.hpp"
|
|
|
|
#define MYGUI_PLATFORM_LOG_SECTION "Platform"
|
|
#define MYGUI_PLATFORM_LOG(level, text) MYGUI_LOGGING(MYGUI_PLATFORM_LOG_SECTION, level, text)
|
|
|
|
#define MYGUI_PLATFORM_EXCEPT(dest) do { \
|
|
MYGUI_PLATFORM_LOG(Critical, dest); \
|
|
std::ostringstream stream; \
|
|
stream << dest << "\n"; \
|
|
MYGUI_BASE_EXCEPT(stream.str().c_str(), "MyGUI"); \
|
|
} while(0)
|
|
|
|
#define MYGUI_PLATFORM_ASSERT(exp, dest) do { \
|
|
if ( ! (exp) ) \
|
|
{ \
|
|
MYGUI_PLATFORM_LOG(Critical, dest); \
|
|
std::ostringstream stream; \
|
|
stream << dest << "\n"; \
|
|
MYGUI_BASE_EXCEPT(stream.str().c_str(), "MyGUI"); \
|
|
} \
|
|
} while(0)
|
|
|
|
namespace osgMyGUI
|
|
{
|
|
|
|
class Drawable : public osg::Drawable {
|
|
osgMyGUI::RenderManager *mParent;
|
|
osg::ref_ptr<osg::StateSet> mStateSet;
|
|
|
|
public:
|
|
|
|
// Stage 0: update widget animations and controllers. Run during the Update traversal.
|
|
class FrameUpdate : public osg::Drawable::UpdateCallback
|
|
{
|
|
public:
|
|
FrameUpdate()
|
|
: mRenderManager(nullptr)
|
|
{
|
|
}
|
|
|
|
void setRenderManager(osgMyGUI::RenderManager* renderManager)
|
|
{
|
|
mRenderManager = renderManager;
|
|
}
|
|
|
|
void update(osg::NodeVisitor*, osg::Drawable*) override
|
|
{
|
|
if (mRenderManager)
|
|
mRenderManager->update();
|
|
}
|
|
|
|
private:
|
|
osgMyGUI::RenderManager* mRenderManager;
|
|
};
|
|
|
|
// Stage 1: collect draw calls. Run during the Cull traversal.
|
|
class CollectDrawCalls : public osg::Drawable::CullCallback
|
|
{
|
|
public:
|
|
CollectDrawCalls()
|
|
: mRenderManager(nullptr)
|
|
{
|
|
}
|
|
|
|
void setRenderManager(osgMyGUI::RenderManager* renderManager)
|
|
{
|
|
mRenderManager = renderManager;
|
|
}
|
|
|
|
bool cull(osg::NodeVisitor*, osg::Drawable*, osg::State*) const override
|
|
{
|
|
if (!mRenderManager)
|
|
return false;
|
|
|
|
mRenderManager->collectDrawCalls();
|
|
return false;
|
|
}
|
|
|
|
private:
|
|
osgMyGUI::RenderManager* mRenderManager;
|
|
};
|
|
|
|
// Stage 2: execute the draw calls. Run during the Draw traversal. May run in parallel with the update traversal of the next frame.
|
|
void drawImplementation(osg::RenderInfo &renderInfo) const override
|
|
{
|
|
osg::State *state = renderInfo.getState();
|
|
|
|
state->pushStateSet(mStateSet);
|
|
state->apply();
|
|
|
|
state->disableAllVertexArrays();
|
|
state->setClientActiveTextureUnit(0);
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
glEnableClientState(GL_COLOR_ARRAY);
|
|
|
|
mReadFrom = (mReadFrom+1)%sNumBuffers;
|
|
const std::vector<Batch>& vec = mBatchVector[mReadFrom];
|
|
for (std::vector<Batch>::const_iterator it = vec.begin(); it != vec.end(); ++it)
|
|
{
|
|
const Batch& batch = *it;
|
|
osg::VertexBufferObject *vbo = batch.mVertexBuffer;
|
|
|
|
if (batch.mStateSet)
|
|
{
|
|
state->pushStateSet(batch.mStateSet);
|
|
state->apply();
|
|
}
|
|
|
|
osg::Texture2D* texture = batch.mTexture;
|
|
if(texture)
|
|
state->applyTextureAttribute(0, texture);
|
|
|
|
osg::GLBufferObject* bufferobject = state->isVertexBufferObjectSupported() ? vbo->getOrCreateGLBufferObject(state->getContextID()) : nullptr;
|
|
if (bufferobject)
|
|
{
|
|
state->bindVertexBufferObject(bufferobject);
|
|
|
|
glVertexPointer(3, GL_FLOAT, sizeof(MyGUI::Vertex), reinterpret_cast<char*>(0));
|
|
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(MyGUI::Vertex), reinterpret_cast<char*>(12));
|
|
glTexCoordPointer(2, GL_FLOAT, sizeof(MyGUI::Vertex), reinterpret_cast<char*>(16));
|
|
}
|
|
else
|
|
{
|
|
glVertexPointer(3, GL_FLOAT, sizeof(MyGUI::Vertex), (char*)vbo->getArray(0)->getDataPointer());
|
|
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(MyGUI::Vertex), (char*)vbo->getArray(0)->getDataPointer() + 12);
|
|
glTexCoordPointer(2, GL_FLOAT, sizeof(MyGUI::Vertex), (char*)vbo->getArray(0)->getDataPointer() + 16);
|
|
}
|
|
|
|
glDrawArrays(GL_TRIANGLES, 0, batch.mVertexCount);
|
|
|
|
if (batch.mStateSet)
|
|
{
|
|
state->popStateSet();
|
|
state->apply();
|
|
}
|
|
}
|
|
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
glDisableClientState(GL_COLOR_ARRAY);
|
|
|
|
state->popStateSet();
|
|
|
|
state->unbindVertexBufferObject();
|
|
state->dirtyAllVertexArrays();
|
|
state->disableAllVertexArrays();
|
|
}
|
|
|
|
public:
|
|
Drawable(osgMyGUI::RenderManager *parent = nullptr)
|
|
: mParent(parent)
|
|
, mWriteTo(0)
|
|
, mReadFrom(0)
|
|
{
|
|
setSupportsDisplayList(false);
|
|
|
|
osg::ref_ptr<CollectDrawCalls> collectDrawCalls = new CollectDrawCalls;
|
|
collectDrawCalls->setRenderManager(mParent);
|
|
setCullCallback(collectDrawCalls);
|
|
|
|
osg::ref_ptr<FrameUpdate> frameUpdate = new FrameUpdate;
|
|
frameUpdate->setRenderManager(mParent);
|
|
setUpdateCallback(frameUpdate);
|
|
|
|
mStateSet = new osg::StateSet;
|
|
mStateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
|
|
mStateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::ON);
|
|
mStateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
|
|
mStateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
|
|
|
|
// need to flip tex coords since MyGUI uses DirectX convention of top left image origin
|
|
osg::Matrix flipMat;
|
|
flipMat.preMultTranslate(osg::Vec3f(0,1,0));
|
|
flipMat.preMultScale(osg::Vec3f(1,-1,1));
|
|
mStateSet->setTextureAttribute(0, new osg::TexMat(flipMat), osg::StateAttribute::ON);
|
|
}
|
|
Drawable(const Drawable ©, const osg::CopyOp ©op=osg::CopyOp::SHALLOW_COPY)
|
|
: osg::Drawable(copy, copyop)
|
|
, mParent(copy.mParent)
|
|
, mStateSet(copy.mStateSet)
|
|
, mWriteTo(0)
|
|
, mReadFrom(0)
|
|
{
|
|
}
|
|
|
|
// Defines the necessary information for a draw call
|
|
struct Batch
|
|
{
|
|
// May be empty
|
|
osg::ref_ptr<osg::Texture2D> mTexture;
|
|
|
|
osg::ref_ptr<osg::VertexBufferObject> mVertexBuffer;
|
|
// need to hold on to this too as the mVertexBuffer does not hold a ref to its own array
|
|
osg::ref_ptr<osg::Array> mArray;
|
|
|
|
// optional
|
|
osg::ref_ptr<osg::StateSet> mStateSet;
|
|
|
|
size_t mVertexCount;
|
|
};
|
|
|
|
void addBatch(const Batch& batch)
|
|
{
|
|
mBatchVector[mWriteTo].push_back(batch);
|
|
}
|
|
|
|
void clear()
|
|
{
|
|
mWriteTo = (mWriteTo+1)%sNumBuffers;
|
|
mBatchVector[mWriteTo].clear();
|
|
}
|
|
|
|
META_Object(osgMyGUI, Drawable)
|
|
|
|
private:
|
|
// 2 would be enough in most cases, use 4 to get stereo working
|
|
static const int sNumBuffers = 4;
|
|
|
|
// double buffering approach, to avoid the need for synchronization with the draw thread
|
|
std::vector<Batch> mBatchVector[sNumBuffers];
|
|
|
|
int mWriteTo;
|
|
mutable int mReadFrom;
|
|
};
|
|
|
|
class OSGVertexBuffer : public MyGUI::IVertexBuffer
|
|
{
|
|
osg::ref_ptr<osg::VertexBufferObject> mBuffer[2];
|
|
osg::ref_ptr<osg::UByteArray> mVertexArray[2];
|
|
|
|
size_t mNeedVertexCount;
|
|
|
|
unsigned int mCurrentBuffer;
|
|
bool mUsed; // has the mCurrentBuffer been submitted to the rendering thread
|
|
|
|
void destroy();
|
|
osg::UByteArray* create();
|
|
|
|
public:
|
|
OSGVertexBuffer();
|
|
virtual ~OSGVertexBuffer() {}
|
|
|
|
void markUsed();
|
|
|
|
osg::Array* getVertexArray();
|
|
osg::VertexBufferObject* getVertexBuffer();
|
|
|
|
void setVertexCount(size_t count) override;
|
|
size_t getVertexCount() override;
|
|
|
|
MyGUI::Vertex *lock() override;
|
|
void unlock() override;
|
|
|
|
};
|
|
|
|
OSGVertexBuffer::OSGVertexBuffer()
|
|
: mNeedVertexCount(0)
|
|
, mCurrentBuffer(0)
|
|
, mUsed(false)
|
|
{
|
|
}
|
|
|
|
void OSGVertexBuffer::markUsed()
|
|
{
|
|
mUsed = true;
|
|
}
|
|
|
|
void OSGVertexBuffer::setVertexCount(size_t count)
|
|
{
|
|
if(count == mNeedVertexCount)
|
|
return;
|
|
|
|
mNeedVertexCount = count;
|
|
}
|
|
|
|
size_t OSGVertexBuffer::getVertexCount()
|
|
{
|
|
return mNeedVertexCount;
|
|
}
|
|
|
|
MyGUI::Vertex *OSGVertexBuffer::lock()
|
|
{
|
|
if (mUsed)
|
|
{
|
|
mCurrentBuffer = (mCurrentBuffer+1)%2;
|
|
mUsed = false;
|
|
}
|
|
osg::UByteArray* array = mVertexArray[mCurrentBuffer];
|
|
if (!array)
|
|
{
|
|
array = create();
|
|
}
|
|
else if (array->size() != mNeedVertexCount * sizeof(MyGUI::Vertex))
|
|
{
|
|
array->resize(mNeedVertexCount * sizeof(MyGUI::Vertex));
|
|
}
|
|
|
|
return (MyGUI::Vertex*)&(*array)[0];
|
|
}
|
|
|
|
void OSGVertexBuffer::unlock()
|
|
{
|
|
mVertexArray[mCurrentBuffer]->dirty();
|
|
mBuffer[mCurrentBuffer]->dirty();
|
|
}
|
|
|
|
osg::UByteArray* OSGVertexBuffer::create()
|
|
{
|
|
mVertexArray[mCurrentBuffer] = new osg::UByteArray(mNeedVertexCount*sizeof(MyGUI::Vertex));
|
|
|
|
mBuffer[mCurrentBuffer] = new osg::VertexBufferObject;
|
|
mBuffer[mCurrentBuffer]->setDataVariance(osg::Object::DYNAMIC);
|
|
mBuffer[mCurrentBuffer]->setUsage(GL_DYNAMIC_DRAW);
|
|
// NB mBuffer does not own the array
|
|
mBuffer[mCurrentBuffer]->setArray(0, mVertexArray[mCurrentBuffer].get());
|
|
|
|
return mVertexArray[mCurrentBuffer];
|
|
}
|
|
|
|
osg::Array* OSGVertexBuffer::getVertexArray()
|
|
{
|
|
return mVertexArray[mCurrentBuffer];
|
|
}
|
|
|
|
osg::VertexBufferObject* OSGVertexBuffer::getVertexBuffer()
|
|
{
|
|
return mBuffer[mCurrentBuffer];
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
RenderManager::RenderManager(osgViewer::Viewer *viewer, osg::Group *sceneroot, Resource::ImageManager* imageManager, float scalingFactor)
|
|
: mViewer(viewer)
|
|
, mSceneRoot(sceneroot)
|
|
, mImageManager(imageManager)
|
|
, mUpdate(false)
|
|
, mIsInitialise(false)
|
|
, mInvScalingFactor(1.f)
|
|
, mInjectState(nullptr)
|
|
{
|
|
if (scalingFactor != 0.f)
|
|
mInvScalingFactor = 1.f / scalingFactor;
|
|
}
|
|
|
|
RenderManager::~RenderManager()
|
|
{
|
|
MYGUI_PLATFORM_LOG(Info, "* Shutdown: "<<getClassTypeName());
|
|
|
|
if(mGuiRoot.valid())
|
|
mSceneRoot->removeChild(mGuiRoot.get());
|
|
mGuiRoot = nullptr;
|
|
mSceneRoot = nullptr;
|
|
mViewer = nullptr;
|
|
|
|
destroyAllResources();
|
|
|
|
MYGUI_PLATFORM_LOG(Info, getClassTypeName()<<" successfully shutdown");
|
|
mIsInitialise = false;
|
|
}
|
|
|
|
|
|
void RenderManager::initialise()
|
|
{
|
|
MYGUI_PLATFORM_ASSERT(!mIsInitialise, getClassTypeName()<<" initialised twice");
|
|
MYGUI_PLATFORM_LOG(Info, "* Initialise: "<<getClassTypeName());
|
|
|
|
mVertexFormat = MyGUI::VertexColourType::ColourABGR;
|
|
|
|
mUpdate = false;
|
|
|
|
mDrawable = new Drawable(this);
|
|
|
|
osg::ref_ptr<osg::Camera> camera = new osg::Camera();
|
|
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
|
|
camera->setProjectionResizePolicy(osg::Camera::FIXED);
|
|
camera->setProjectionMatrix(osg::Matrix::identity());
|
|
camera->setViewMatrix(osg::Matrix::identity());
|
|
camera->setRenderOrder(osg::Camera::POST_RENDER);
|
|
camera->setClearMask(GL_NONE);
|
|
mDrawable->setCullingActive(false);
|
|
camera->addChild(mDrawable.get());
|
|
|
|
mGuiRoot = camera;
|
|
mSceneRoot->addChild(mGuiRoot.get());
|
|
|
|
osg::ref_ptr<osg::Viewport> vp = mViewer->getCamera()->getViewport();
|
|
setViewSize(vp->width(), vp->height());
|
|
|
|
MYGUI_PLATFORM_LOG(Info, getClassTypeName()<<" successfully initialized");
|
|
mIsInitialise = true;
|
|
}
|
|
|
|
void RenderManager::shutdown()
|
|
{
|
|
mGuiRoot->removeChildren(0, mGuiRoot->getNumChildren());
|
|
mSceneRoot->removeChild(mGuiRoot);
|
|
}
|
|
|
|
MyGUI::IVertexBuffer* RenderManager::createVertexBuffer()
|
|
{
|
|
return new OSGVertexBuffer();
|
|
}
|
|
|
|
void RenderManager::destroyVertexBuffer(MyGUI::IVertexBuffer *buffer)
|
|
{
|
|
delete buffer;
|
|
}
|
|
|
|
|
|
void RenderManager::begin()
|
|
{
|
|
mDrawable->clear();
|
|
// variance will be recomputed based on textures being rendered in this frame
|
|
mDrawable->setDataVariance(osg::Object::STATIC);
|
|
}
|
|
|
|
void RenderManager::doRender(MyGUI::IVertexBuffer *buffer, MyGUI::ITexture *texture, size_t count)
|
|
{
|
|
Drawable::Batch batch;
|
|
batch.mVertexCount = count;
|
|
batch.mVertexBuffer = static_cast<OSGVertexBuffer*>(buffer)->getVertexBuffer();
|
|
batch.mArray = static_cast<OSGVertexBuffer*>(buffer)->getVertexArray();
|
|
static_cast<OSGVertexBuffer*>(buffer)->markUsed();
|
|
if (texture)
|
|
{
|
|
batch.mTexture = static_cast<OSGTexture*>(texture)->getTexture();
|
|
if (batch.mTexture->getDataVariance() == osg::Object::DYNAMIC)
|
|
mDrawable->setDataVariance(osg::Object::DYNAMIC); // only for this frame, reset in begin()
|
|
}
|
|
if (mInjectState)
|
|
batch.mStateSet = mInjectState;
|
|
|
|
mDrawable->addBatch(batch);
|
|
}
|
|
|
|
void RenderManager::setInjectState(osg::StateSet* stateSet)
|
|
{
|
|
mInjectState = stateSet;
|
|
}
|
|
|
|
void RenderManager::end()
|
|
{
|
|
}
|
|
|
|
void RenderManager::update()
|
|
{
|
|
static MyGUI::Timer timer;
|
|
static unsigned long last_time = timer.getMilliseconds();
|
|
unsigned long now_time = timer.getMilliseconds();
|
|
unsigned long time = now_time - last_time;
|
|
|
|
onFrameEvent((float)((double)(time) / (double)1000));
|
|
|
|
last_time = now_time;
|
|
}
|
|
|
|
void RenderManager::collectDrawCalls()
|
|
{
|
|
begin();
|
|
onRenderToTarget(this, mUpdate);
|
|
end();
|
|
|
|
mUpdate = false;
|
|
}
|
|
|
|
void RenderManager::setViewSize(int width, int height)
|
|
{
|
|
if(width < 1) width = 1;
|
|
if(height < 1) height = 1;
|
|
|
|
mGuiRoot->setViewport(0, 0, width, height);
|
|
|
|
mViewSize.set(width * mInvScalingFactor, height * mInvScalingFactor);
|
|
|
|
mInfo.maximumDepth = 1;
|
|
mInfo.hOffset = 0;
|
|
mInfo.vOffset = 0;
|
|
mInfo.aspectCoef = float(mViewSize.height) / float(mViewSize.width);
|
|
mInfo.pixScaleX = 1.0f / float(mViewSize.width);
|
|
mInfo.pixScaleY = 1.0f / float(mViewSize.height);
|
|
|
|
onResizeView(mViewSize);
|
|
mUpdate = true;
|
|
}
|
|
|
|
|
|
bool RenderManager::isFormatSupported(MyGUI::PixelFormat /*format*/, MyGUI::TextureUsage /*usage*/)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
MyGUI::ITexture* RenderManager::createTexture(const std::string &name)
|
|
{
|
|
MapTexture::iterator item = mTextures.find(name);
|
|
if (item != mTextures.end())
|
|
{
|
|
delete item->second;
|
|
mTextures.erase(item);
|
|
}
|
|
|
|
OSGTexture* texture = new OSGTexture(name, mImageManager);
|
|
mTextures.insert(std::make_pair(name, texture));
|
|
return texture;
|
|
}
|
|
|
|
void RenderManager::destroyTexture(MyGUI::ITexture *texture)
|
|
{
|
|
if(texture == nullptr)
|
|
return;
|
|
|
|
MapTexture::iterator item = mTextures.find(texture->getName());
|
|
MYGUI_PLATFORM_ASSERT(item != mTextures.end(), "Texture '"<<texture->getName()<<"' not found");
|
|
|
|
mTextures.erase(item);
|
|
delete texture;
|
|
}
|
|
|
|
MyGUI::ITexture* RenderManager::getTexture(const std::string &name)
|
|
{
|
|
if (name.empty())
|
|
return nullptr;
|
|
|
|
MapTexture::const_iterator item = mTextures.find(name);
|
|
if(item == mTextures.end())
|
|
{
|
|
MyGUI::ITexture* tex = createTexture(name);
|
|
tex->loadFromFile(name);
|
|
return tex;
|
|
}
|
|
return item->second;
|
|
}
|
|
|
|
void RenderManager::destroyAllResources()
|
|
{
|
|
for (MapTexture::iterator it = mTextures.begin(); it != mTextures.end(); ++it)
|
|
delete it->second;
|
|
mTextures.clear();
|
|
}
|
|
|
|
bool RenderManager::checkTexture(MyGUI::ITexture* _texture)
|
|
{
|
|
// We support external textures that aren't registered via this manager, so can't implement this method sensibly.
|
|
return true;
|
|
}
|
|
|
|
}
|