FGFS-4.1/OpenSceneGraph
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Implementated new dirty buffer mechansim for BufferObjects to make it more efficient

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This commit is contained in:
Robert Osfield
2007-04-30 12:18:27 +00:00
parent efb52dfab9
commit d625a5e114
11 changed files with 104 additions and 37 deletions
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29
src/osg/BufferObject.cpp
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@@ -308,6 +308,8 @@ unsigned int VertexBufferObject::addArray(osg::Array* array)
_bufferEntryArrayPairs[i].first.modifiedCount.setAllElementsTo(0xffffffff);
_bufferEntryArrayPairs[i].first.offset = 0;
dirty();
return i;
}
@@ -318,11 +320,13 @@ void VertexBufferObject::setArray(unsigned int i, Array* array)
_bufferEntryArrayPairs[i].second = array;
_bufferEntryArrayPairs[i].first.modifiedCount.setAllElementsTo(0xffffffff);
_bufferEntryArrayPairs[i].first.offset = 0;
dirty();
}
bool VertexBufferObject::needsCompile(unsigned int contextID) const
{
// return true;
if (isDirty(contextID)) return true;
unsigned int numValidArray = 0;
for(BufferEntryArrayPairs::const_iterator itr = _bufferEntryArrayPairs.begin();
@@ -353,10 +357,11 @@ bool VertexBufferObject::needsCompile(unsigned int contextID) const
return false;
}
void VertexBufferObject::compileBuffer(State& state) const
void VertexBufferObject::compileBufferImplementation(State& state) const
{
unsigned int contextID = state.getContextID();
if (!needsCompile(contextID)) return;
_compiledList[contextID] = 1;
Extensions* extensions = getExtensions(contextID,true);
@@ -500,6 +505,8 @@ void ElementsBufferObject::setDrawElements(unsigned int i, DrawElements* drawEle
bool ElementsBufferObject::needsCompile(unsigned int contextID) const
{
if (isDirty(contextID)) return true;
#if 1
unsigned int numValidDrawElements = 0;
for(BufferEntryDrawElementsPairs::const_iterator itr = _bufferEntryDrawElementsPairs.begin();
@@ -531,10 +538,11 @@ bool ElementsBufferObject::needsCompile(unsigned int contextID) const
return false;
}
void ElementsBufferObject::compileBuffer(State& state) const
void ElementsBufferObject::compileBufferImplementation(State& state) const
{
unsigned int contextID = state.getContextID();
if (!needsCompile(contextID)) return;
_compiledList[contextID] = 1;
osg::notify(osg::NOTICE)<<"ElementsBufferObject::compile"<<std::endl;
@@ -660,11 +668,17 @@ PixelBufferObject::~PixelBufferObject()
void PixelBufferObject::setImage(osg::Image* image)
{
if (_bufferEntryImagePair.second == image) return;
_bufferEntryImagePair.second = image;
dirty();
}
bool PixelBufferObject::needsCompile(unsigned int contextID) const
{
if (isDirty(contextID)) return true;
if (!_bufferEntryImagePair.second)
return false;
@@ -676,11 +690,12 @@ bool PixelBufferObject::needsCompile(unsigned int contextID) const
return false;
}
void PixelBufferObject::compileBuffer(State& state) const
void PixelBufferObject::compileBufferImplementation(State& state) const
{
unsigned int contextID = state.getContextID();
if (!needsCompile(contextID)) return;
_compiledList[contextID] = 1;
osg::Image* image = _bufferEntryImagePair.second;
_bufferEntryImagePair.first.modifiedCount[contextID] = image->getModifiedCount();