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implementation via glBufferSubData

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This commit is contained in:
asl
2018-08-29 13:56:58 +03:00
parent 194fb16c21
commit 50620d9829
1 changed files with 12 additions and 25 deletions
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37
src/OpenGl/OpenGl_PrimitiveArray.cxx
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@@ -361,33 +361,23 @@ Standard_Boolean OpenGl_PrimitiveArray::buildVBO (const Handle(OpenGl_Context)&
Standard_Boolean OpenGl_PrimitiveArray::updateVBO(const Handle(OpenGl_Context)& theCtx) const
{
int aStride = myAttribs->IsInterleaved() ? myAttribs->Stride : myAttribs->AttributeOffset(myAttribs->NbAttributes) / myAttribs->NbElements;
int aSize = myAttribs->AttributeOffset(myAttribs->NbAttributes);
myVboAttribs->init(theCtx, aStride, myAttribs->NbElements, myAttribs->Data(), GL_UNSIGNED_BYTE, aStride);
//int aStride = myAttribs->IsInterleaved() ? myAttribs->Stride : myAttribs->AttributeOffset(myAttribs->NbAttributes) / myAttribs->NbElements;
//int aSize = myAttribs->AttributeOffset(myAttribs->NbAttributes);
//myVboAttribs->init(theCtx, aStride, myAttribs->NbElements, myAttribs->Data(), GL_UNSIGNED_BYTE, aStride);
/*GLint a, b, c;
theCtx->core15fwd->glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &a);
theCtx->core15fwd->glGetIntegerv(GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, &b);
theCtx->core15fwd->glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &c);
//myVboAttribs->Bind(theCtx);
//theCtx->core15fwd->glBufferData(myVboAttribs->GetTarget(), aSize, myAttribs->Data(), GL_STATIC_DRAW);
//myVboAttribs->Unbind(theCtx);
myVboAttribs->BindAllAttributes(theCtx);
printf("array buffer: %i\n", (int)a);
printf("vertex attrib: %i\n", (int)b);
printf("element array: %i\n", (int)c);
printf("my buffer: %i\n", (int)myVboAttribs->BufferId());
theCtx->core15fwd->glBufferData(myVboAttribs->GetTarget(), aSize, myAttribs->Data(), GL_STATIC_DRAW);
myVboAttribs->UnbindAllAttributes(theCtx);
/*const std::vector<Graphic3d_Range>& ranges = myAttribs->InvalidatedRanges();
myVboAttribs->Bind(theCtx);
const std::vector<Graphic3d_Range>& ranges = myAttribs->InvalidatedRanges();
for (size_t i = 0, n = ranges.size(); i < n; i++)
{
Graphic3d_Range aRange = ranges[i];
theCtx->core15fwd->glBufferSubData(myVboAttribs->GetTarget(),
aRange.Start, aRange.Length, myAttribs->Data() + aRange.Start);
}*/
//myVboAttribs->Unbind(theCtx);
}
myVboAttribs->Unbind(theCtx);
myAttribs->Validate();
return Standard_True;
@@ -777,8 +767,8 @@ void OpenGl_PrimitiveArray::Render (const Handle(OpenGl_Workspace)& theWorkspace
myIsVboInit = Standard_True;
}
//if (!myAttribs.IsNull() && myAttribs->IsMutable() && myAttribs->InvalidatedRanges().size() > 0)
// updateVBO(aCtx);
if (!myAttribs.IsNull() && myAttribs->IsMutable() && myAttribs->InvalidatedRanges().size() > 0)
updateVBO(aCtx);
// Temporarily disable environment mapping
Handle(OpenGl_TextureSet) aTextureBack;
@@ -901,9 +891,6 @@ void OpenGl_PrimitiveArray::Render (const Handle(OpenGl_Workspace)& theWorkspace
const Graphic3d_Vec4* aFaceColors = !myBounds.IsNull() && !toHilight && anAspectFace->Aspect()->InteriorStyle() != Aspect_IS_HIDDENLINE
? myBounds->Colors
: NULL;
if (!myAttribs.IsNull() && myAttribs->IsMutable() && myAttribs->InvalidatedRanges().size() > 0)
updateVBO(aCtx);
drawArray (theWorkspace, aFaceColors, hasColorAttrib);
}