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0025213: Visualization, TKOpenGl - do not use deprecated built-ins in GLSL shaders

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Inherit NCollection_Buffer from Standard_Transient, do not use incomplete NCollection_Handle.

OpenGl_Context, add methods ActiveProgram(),BindProgram()
to manage currently active GLSL program.
Add method ::ToUseVbo().

OpenGl_ShaderProgram, setup locations of pre-defined vertex attributes
occVertex, occNormal, occTexCoord, occColor before linkage.
Remove methods OpenGl_ShaderProgram::Bind(), ::BindWithVariables()
and ::Unbind() - OpenGl_Context::BindProgram() should be used instead.

Introduce class OpenGl_VertexBufferCompat, which emulates VBO
behavior on systems without VBO (compatibility with broken OpenGL drivers on Windows).

OpenGl_PrimitiveArray - use OpenGl_VertexBufferCompat when VBO is unavailable,
remove duplicated code. Use OpenGl_VertexBuffer::HasNormalAttribute()
method to activate lighting.

OpenGl_Text - use OpenGl_VertexBufferCompat, eliminate duplicated code.

Changes in OpenGl_VertexBuffer, drop methods BindFixed()/UnbindFixed().
Superseded by new methods BindAllAttributes()/UnbindAllAttributes()
which handle active GLSL program, when it is set.
This commit is contained in:
kgv 2014-09-17 13:02:32 +04:00 committed by bugmaster
parent 9f33b387e2
commit 7d3e64ef5e
30 changed files with 1057 additions and 735 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/Graphic3d/Graphic3d_ArrayOfPrimitives.cxx
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@ -21,6 +21,15 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
IMPLEMENT_STANDARD_HANDLE (Graphic3d_Buffer, NCollection_Buffer)
IMPLEMENT_STANDARD_RTTIEXT(Graphic3d_Buffer, NCollection_Buffer)
IMPLEMENT_STANDARD_HANDLE (Graphic3d_BoundBuffer, NCollection_Buffer)
IMPLEMENT_STANDARD_RTTIEXT(Graphic3d_BoundBuffer, NCollection_Buffer)
IMPLEMENT_STANDARD_HANDLE (Graphic3d_IndexBuffer, Graphic3d_Buffer)
IMPLEMENT_STANDARD_RTTIEXT(Graphic3d_IndexBuffer, Graphic3d_Buffer)
Graphic3d_ArrayOfPrimitives::Graphic3d_ArrayOfPrimitives (const Graphic3d_TypeOfPrimitiveArray theType, Graphic3d_ArrayOfPrimitives::Graphic3d_ArrayOfPrimitives (const Graphic3d_TypeOfPrimitiveArray theType,
const Standard_Integer theMaxVertexs, const Standard_Integer theMaxVertexs,
const Standard_Integer theMaxBounds, const Standard_Integer theMaxBounds,

6
src/Graphic3d/Graphic3d_BoundBuffer.hxx
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@ -63,8 +63,12 @@ public:
Standard_Integer* Bounds; //!< pointer to bounds array Standard_Integer* Bounds; //!< pointer to bounds array
Standard_Integer NbBounds; //!< number of bounds Standard_Integer NbBounds; //!< number of bounds
public:
DEFINE_STANDARD_RTTI(Graphic3d_BoundBuffer) // Type definition
}; };
typedef NCollection_Handle<Graphic3d_BoundBuffer> Handle(Graphic3d_BoundBuffer); DEFINE_STANDARD_HANDLE(Graphic3d_BoundBuffer, NCollection_Buffer)
#endif // _Graphic3d_BoundBuffer_HeaderFile #endif // _Graphic3d_BoundBuffer_HeaderFile

6
src/Graphic3d/Graphic3d_Buffer.hxx
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@ -201,8 +201,12 @@ public:
Standard_Integer NbElements; //!< number of the elements Standard_Integer NbElements; //!< number of the elements
Standard_Integer NbAttributes; //!< number of vertex attributes Standard_Integer NbAttributes; //!< number of vertex attributes
public:
DEFINE_STANDARD_RTTI(Graphic3d_Buffer) // Type definition
}; };
typedef NCollection_Handle<Graphic3d_Buffer> Handle(Graphic3d_Buffer); DEFINE_STANDARD_HANDLE(Graphic3d_Buffer, NCollection_Buffer)
#endif // _Graphic3d_Buffer_HeaderFile #endif // _Graphic3d_Buffer_HeaderFile

6
src/Graphic3d/Graphic3d_IndexBuffer.hxx
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@ -70,8 +70,12 @@ public:
} }
} }
public:
DEFINE_STANDARD_RTTI(Graphic3d_IndexBuffer) // Type definition
}; };
typedef NCollection_Handle<Graphic3d_IndexBuffer> Handle(Graphic3d_IndexBuffer); DEFINE_STANDARD_HANDLE(Graphic3d_IndexBuffer, Graphic3d_Buffer)
#endif // _Graphic3d_IndexBuffer_HeaderFile #endif // _Graphic3d_IndexBuffer_HeaderFile

3
src/Image/Image_PixMap.cxx
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@ -21,6 +21,9 @@
IMPLEMENT_STANDARD_HANDLE (Image_PixMap, Standard_Transient) IMPLEMENT_STANDARD_HANDLE (Image_PixMap, Standard_Transient)
IMPLEMENT_STANDARD_RTTIEXT(Image_PixMap, Standard_Transient) IMPLEMENT_STANDARD_RTTIEXT(Image_PixMap, Standard_Transient)
IMPLEMENT_STANDARD_HANDLE (Image_PixMapData, NCollection_Buffer)
IMPLEMENT_STANDARD_RTTIEXT(Image_PixMapData, NCollection_Buffer)
// ======================================================================= // =======================================================================
// function : Image_PixMap // function : Image_PixMap
// purpose : // purpose :

7
src/Image/Image_PixMapData.hxx
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@ -124,8 +124,13 @@ public:
Standard_Size SizeRowBytes; //!< number of bytes per line (in most cases equal to 3 * sizeX) Standard_Size SizeRowBytes; //!< number of bytes per line (in most cases equal to 3 * sizeX)
Standard_Size TopToDown; //!< image scanlines direction in memory from Top to the Down Standard_Size TopToDown; //!< image scanlines direction in memory from Top to the Down
public:
DEFINE_STANDARD_RTTI(Image_PixMapData) // Type definition
}; };
typedef NCollection_Handle<Image_PixMapData> Handle(Image_PixMapData); DEFINE_STANDARD_HANDLE(Image_PixMapData, NCollection_Buffer)
#endif // _Image_PixMapData_H__ #endif // _Image_PixMapData_H__

4
src/NCollection/NCollection_AlignedAllocator.cxx
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@ -14,10 +14,14 @@
// commercial license or contractual agreement. // commercial license or contractual agreement.
#include <NCollection_AlignedAllocator.hxx> #include <NCollection_AlignedAllocator.hxx>
#include <NCollection_Buffer.hxx>
IMPLEMENT_STANDARD_HANDLE (NCollection_AlignedAllocator, NCollection_BaseAllocator) IMPLEMENT_STANDARD_HANDLE (NCollection_AlignedAllocator, NCollection_BaseAllocator)
IMPLEMENT_STANDARD_RTTIEXT (NCollection_AlignedAllocator, NCollection_BaseAllocator) IMPLEMENT_STANDARD_RTTIEXT (NCollection_AlignedAllocator, NCollection_BaseAllocator)
IMPLEMENT_STANDARD_HANDLE (NCollection_Buffer, Standard_Transient)
IMPLEMENT_STANDARD_RTTIEXT (NCollection_Buffer, Standard_Transient)
//======================================================================= //=======================================================================
//function : NCollection_AlignedAllocator() //function : NCollection_AlignedAllocator()
//purpose : Constructor //purpose : Constructor

10
src/NCollection/NCollection_Buffer.hxx
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@ -17,10 +17,10 @@
#define _NCollection_Buffer_HeaderFile #define _NCollection_Buffer_HeaderFile
#include <NCollection_BaseAllocator.hxx> #include <NCollection_BaseAllocator.hxx>
#include <NCollection_Handle.hxx> #include <Standard_Transient.hxx>
//! Low-level buffer object. //! Low-level buffer object.
class NCollection_Buffer class NCollection_Buffer : public Standard_Transient
{ {
public: public:
@ -128,8 +128,12 @@ protected:
Standard_Size mySize; //!< buffer length in bytes Standard_Size mySize; //!< buffer length in bytes
Handle(NCollection_BaseAllocator) myAllocator; //!< buffer allocator Handle(NCollection_BaseAllocator) myAllocator; //!< buffer allocator
public:
DEFINE_STANDARD_RTTI(NCollection_Buffer) // Type definition
}; };
typedef NCollection_Handle<NCollection_Buffer> Handle(NCollection_Buffer); DEFINE_STANDARD_HANDLE(NCollection_Buffer, Standard_Transient)
#endif // _NCollection_Buffer_HeaderFile #endif // _NCollection_Buffer_HeaderFile

3
src/OpenGl/FILES
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@ -117,8 +117,11 @@ OpenGl_TextureBufferArb.hxx
OpenGl_TextureBufferArb.cxx OpenGl_TextureBufferArb.cxx
OpenGl_Vec.hxx OpenGl_Vec.hxx
OpenGl_VertexBuffer.hxx OpenGl_VertexBuffer.hxx
OpenGl_VertexBuffer.lxx
OpenGl_VertexBuffer.cxx OpenGl_VertexBuffer.cxx
OpenGl_VertexBufferEditor.hxx OpenGl_VertexBufferEditor.hxx
OpenGl_VertexBufferCompat.hxx
OpenGl_VertexBufferCompat.cxx
OpenGl_RenderFilter.hxx OpenGl_RenderFilter.hxx
OpenGl_RenderFilter.cxx OpenGl_RenderFilter.cxx
OpenGl_CappingAlgo.hxx OpenGl_CappingAlgo.hxx

23
src/OpenGl/OpenGl_Context.cxx
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@ -110,9 +110,9 @@ OpenGl_Context::OpenGl_Context (const Handle(OpenGl_Caps)& theCaps)
myMaxClipPlanes (6), myMaxClipPlanes (6),
myGlVerMajor (0), myGlVerMajor (0),
myGlVerMinor (0), myGlVerMinor (0),
myRenderMode (GL_RENDER),
myIsInitialized (Standard_False), myIsInitialized (Standard_False),
myIsStereoBuffers (Standard_False), myIsStereoBuffers (Standard_False),
myRenderMode (GL_RENDER),
myDrawBuffer (0) myDrawBuffer (0)
{ {
#if defined(MAC_OS_X_VERSION_10_3) && !defined(MACOSX_USE_GLX) #if defined(MAC_OS_X_VERSION_10_3) && !defined(MACOSX_USE_GLX)
@ -1976,3 +1976,24 @@ void OpenGl_Context::ReleaseDelayed()
myDelayed->UnBind (aDeadList.Value (anIter)); myDelayed->UnBind (aDeadList.Value (anIter));
} }
} }
// =======================================================================
// function : BindProgram
// purpose :
// =======================================================================
void OpenGl_Context::BindProgram (const Handle(OpenGl_ShaderProgram)& theProgram)
{
if (theProgram.IsNull()
|| !theProgram->IsValid())
{
if (!myActiveProgram.IsNull())
{
core20fwd->glUseProgram (OpenGl_ShaderProgram::NO_PROGRAM);
myActiveProgram.Nullify();
}
return;
}
myActiveProgram = theProgram;
core20fwd->glUseProgram (theProgram->ProgramId());
}

28
src/OpenGl/OpenGl_Context.hxx
View File

@ -22,6 +22,7 @@
#include <Aspect_RenderingContext.hxx> #include <Aspect_RenderingContext.hxx>
#include <Handle_OpenGl_Context.hxx> #include <Handle_OpenGl_Context.hxx>
#include <Handle_OpenGl_ShaderManager.hxx> #include <Handle_OpenGl_ShaderManager.hxx>
#include <Handle_OpenGl_ShaderProgram.hxx>
#include <NCollection_DataMap.hxx> #include <NCollection_DataMap.hxx>
#include <NCollection_Map.hxx> #include <NCollection_Map.hxx>
#include <NCollection_Handle.hxx> #include <NCollection_Handle.hxx>
@ -352,6 +353,13 @@ public:
//! @return value for GL_MAX_CLIP_PLANES //! @return value for GL_MAX_CLIP_PLANES
Standard_EXPORT Standard_Integer MaxClipPlanes() const; Standard_EXPORT Standard_Integer MaxClipPlanes() const;
//! Returns true if VBO is supported and permitted.
inline bool ToUseVbo() const
{
return core15fwd != NULL
&& !caps->vboDisable;
}
public: public:
//! @return messenger instance //! @return messenger instance
@ -381,6 +389,8 @@ public:
return myIsStereoBuffers; return myIsStereoBuffers;
} }
public: //! @name methods to alter or retrieve current state
//! Switch to left stereographic rendering buffer. //! Switch to left stereographic rendering buffer.
//! This method can be used to keep unchanged choise //! This method can be used to keep unchanged choise
//! of front/back/both buffer rendering. //! of front/back/both buffer rendering.
@ -402,6 +412,16 @@ public:
//! OpenGl state variables has a possibility of being out-of-date. //! OpenGl state variables has a possibility of being out-of-date.
Standard_EXPORT void FetchState(); Standard_EXPORT void FetchState();
//! @return active GLSL program
const Handle(OpenGl_ShaderProgram)& ActiveProgram() const
{
return myActiveProgram;
}
//! Bind specified program to current context,
//! or unbind previous one when NULL specified.
Standard_EXPORT void BindProgram (const Handle(OpenGl_ShaderProgram)& theProgram);
private: private:
//! Wrapper to system function to retrieve GL function pointer by name. //! Wrapper to system function to retrieve GL function pointer by name.
@ -490,13 +510,17 @@ private: // context info
Standard_Integer myMaxClipPlanes; //!< value for GL_MAX_CLIP_PLANES Standard_Integer myMaxClipPlanes; //!< value for GL_MAX_CLIP_PLANES
Standard_Integer myGlVerMajor; //!< cached GL version major number Standard_Integer myGlVerMajor; //!< cached GL version major number
Standard_Integer myGlVerMinor; //!< cached GL version minor number Standard_Integer myGlVerMinor; //!< cached GL version minor number
Standard_Integer myRenderMode; //!< value for active rendering mode
Standard_Boolean myIsInitialized; //!< flag indicates initialization state Standard_Boolean myIsInitialized; //!< flag indicates initialization state
Standard_Boolean myIsStereoBuffers; //!< context supports stereo buffering Standard_Boolean myIsStereoBuffers; //!< context supports stereo buffering
Standard_Integer myDrawBuffer; //!< current draw buffer.
Handle(OpenGl_ShaderManager) myShaderManager; //! support object for managing shader programs Handle(OpenGl_ShaderManager) myShaderManager; //! support object for managing shader programs
private: //! @name fields tracking current state
Handle(OpenGl_ShaderProgram) myActiveProgram; //!< currently active GLSL program
Standard_Integer myRenderMode; //!< value for active rendering mode
Standard_Integer myDrawBuffer; //!< current draw buffer
private: private:
//! Copying allowed only within Handles //! Copying allowed only within Handles

704
src/OpenGl/OpenGl_PrimitiveArray.cxx
View File

@ -22,22 +22,24 @@
#include <OpenGl_ShaderManager.hxx> #include <OpenGl_ShaderManager.hxx>
#include <OpenGl_ShaderProgram.hxx> #include <OpenGl_ShaderProgram.hxx>
#include <OpenGl_Structure.hxx> #include <OpenGl_Structure.hxx>
#include <OpenGl_VertexBufferCompat.hxx>
#include <OpenGl_Workspace.hxx> #include <OpenGl_Workspace.hxx>
namespace namespace
{ {
template<class T> template<class T>
void BindProgramWithMaterial (const Handle(OpenGl_Workspace)& theWS, const Handle(OpenGl_ShaderProgram)& bindProgram (const Handle(OpenGl_Workspace)& theWS,
const T* theAspect) const T* theAspect)
{ {
const Handle(OpenGl_Context)& aCtx = theWS->GetGlContext(); const Handle(OpenGl_Context)& aCtx = theWS->GetGlContext();
const Handle(OpenGl_ShaderProgram)& aProgram = theAspect->ShaderProgramRes (theWS); const Handle(OpenGl_ShaderProgram)& aProgram = theAspect->ShaderProgramRes (theWS);
aCtx->BindProgram (aProgram);
if (aProgram.IsNull()) if (aProgram.IsNull())
{ {
OpenGl_ShaderProgram::Unbind (aCtx); return aCtx->ActiveProgram();
return;
} }
aProgram->BindWithVariables (aCtx);
aProgram->ApplyVariables (aCtx);
const OpenGl_MaterialState* aMaterialState = aCtx->ShaderManager()->MaterialState (aProgram); const OpenGl_MaterialState* aMaterialState = aCtx->ShaderManager()->MaterialState (aProgram);
if (aMaterialState == NULL || aMaterialState->Aspect() != theAspect) if (aMaterialState == NULL || aMaterialState->Aspect() != theAspect)
@ -46,6 +48,28 @@ namespace
} }
aCtx->ShaderManager()->PushState (aProgram); aCtx->ShaderManager()->PushState (aProgram);
return aProgram;
}
inline const Handle(OpenGl_ShaderProgram)& bindProgram (const Handle(OpenGl_Workspace)& theWorkspace,
const OpenGl_AspectFace* theAspectFace,
const OpenGl_AspectLine* theAspectLine,
const OpenGl_AspectMarker* theAspectMarker,
const GLint theDrawMode)
{
if (!theWorkspace->GetGlContext()->IsGlGreaterEqual (2, 0))
{
return theWorkspace->GetGlContext()->ActiveProgram();
}
switch (theDrawMode)
{
case GL_POINTS:
return bindProgram (theWorkspace, theAspectMarker);
case GL_LINES:
case GL_LINE_STRIP:
return bindProgram (theWorkspace, theAspectLine);
}
return bindProgram (theWorkspace, theAspectFace);
} }
//! Convert index data type from size //! Convert index data type from size
@ -91,8 +115,8 @@ namespace
} }
//! Auxiliary template for VBO with interleaved attributes. //! Auxiliary template for VBO with interleaved attributes.
template<int NbAttributes> template<class TheBaseClass, int NbAttributes>
class OpenGl_VertexBufferT : public OpenGl_VertexBuffer class OpenGl_VertexBufferT : public TheBaseClass
{ {
public: public:
@ -125,16 +149,29 @@ public:
return false; return false;
} }
virtual void BindFixedPosition (const Handle(OpenGl_Context)& theGlCtx) const virtual bool HasNormalAttribute() const
{ {
if (!IsValid()) for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
{
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
if (anAttrib.Id == Graphic3d_TOA_NORM)
{
return true;
}
}
return false;
}
virtual void BindPositionAttribute (const Handle(OpenGl_Context)& theGlCtx) const
{
if (!TheBaseClass::IsValid())
{ {
return; return;
} }
Bind (theGlCtx); TheBaseClass::Bind (theGlCtx);
GLint aNbComp; GLint aNbComp;
const GLubyte* anOffset = NULL; const GLubyte* anOffset = TheBaseClass::myOffset;
for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
{ {
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter]; const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
@ -145,7 +182,7 @@ public:
} }
else if (anAttrib.Id == Graphic3d_TOA_POS) else if (anAttrib.Id == Graphic3d_TOA_POS)
{ {
bindFixed (theGlCtx, Graphic3d_TOA_POS, aNbComp, aDataType, Stride, anOffset); TheBaseClass::bindAttribute (theGlCtx, Graphic3d_TOA_POS, aNbComp, aDataType, Stride, anOffset);
break; break;
} }
@ -153,16 +190,16 @@ public:
} }
} }
virtual void BindFixed (const Handle(OpenGl_Context)& theGlCtx) const virtual void BindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
{ {
if (!IsValid()) if (!TheBaseClass::IsValid())
{ {
return; return;
} }
Bind (theGlCtx); TheBaseClass::Bind (theGlCtx);
GLint aNbComp; GLint aNbComp;
const GLubyte* anOffset = NULL; const GLubyte* anOffset = TheBaseClass::myOffset;
for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
{ {
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter]; const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
@ -172,23 +209,23 @@ public:
continue; continue;
} }
bindFixed (theGlCtx, anAttrib.Id, aNbComp, aDataType, Stride, anOffset); TheBaseClass::bindAttribute (theGlCtx, anAttrib.Id, aNbComp, aDataType, Stride, anOffset);
anOffset += Graphic3d_Attribute::Stride (anAttrib.DataType); anOffset += Graphic3d_Attribute::Stride (anAttrib.DataType);
} }
} }
virtual void UnbindFixed (const Handle(OpenGl_Context)& theGlCtx) const virtual void UnbindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const
{ {
if (!IsValid()) if (!TheBaseClass::IsValid())
{ {
return; return;
} }
Unbind (theGlCtx); TheBaseClass::Unbind (theGlCtx);
for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter) for (Standard_Integer anAttribIter = 0; anAttribIter < NbAttributes; ++anAttribIter)
{ {
const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter]; const Graphic3d_Attribute& anAttrib = Attribs[anAttribIter];
unbindFixed (theGlCtx, anAttrib.Id); TheBaseClass::unbindAttribute (theGlCtx, anAttrib.Id);
} }
} }
@ -218,399 +255,316 @@ void OpenGl_PrimitiveArray::clearMemoryGL (const Handle(OpenGl_Context)& theGlCt
} }
// ======================================================================= // =======================================================================
// function : BuildVBO // function : initNormalVbo
// purpose : // purpose :
// ======================================================================= // =======================================================================
Standard_Boolean OpenGl_PrimitiveArray::BuildVBO (const Handle(OpenGl_Workspace)& theWorkspace) const Standard_Boolean OpenGl_PrimitiveArray::initNormalVbo (const Handle(OpenGl_Context)& theCtx) const
{ {
const Handle(OpenGl_Context)& aGlCtx = theWorkspace->GetGlContext(); switch (myAttribs->NbAttributes)
{
case 1: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 1> (*myAttribs); break;
case 2: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 2> (*myAttribs); break;
case 3: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 3> (*myAttribs); break;
case 4: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 4> (*myAttribs); break;
case 5: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 5> (*myAttribs); break;
case 6: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 6> (*myAttribs); break;
case 7: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 7> (*myAttribs); break;
case 8: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 8> (*myAttribs); break;
case 9: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 9> (*myAttribs); break;
case 10: myVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBuffer, 10>(*myAttribs); break;
}
if (!myVboAttribs->init (theCtx, 0, myAttribs->NbElements, myAttribs->Data(), GL_NONE, myAttribs->Stride))
{
TCollection_ExtendedString aMsg;
aMsg += "VBO creation for Primitive Array has failed for ";
aMsg += myAttribs->NbElements;
aMsg += " vertices. Out of memory?";
theCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, GL_DEBUG_TYPE_PERFORMANCE_ARB, 0, GL_DEBUG_SEVERITY_LOW_ARB, aMsg);
clearMemoryGL (theCtx);
return Standard_False;
}
else if (myIndices.IsNull())
{
return Standard_True;
}
myVboIndices = new OpenGl_IndexBuffer();
bool isOk = false;
switch (myIndices->Stride)
{
case 2:
{
isOk = myVboIndices->Init (theCtx, 1, myIndices->NbElements, reinterpret_cast<const GLushort*> (myIndices->Data()));
break;
}
case 4:
{
isOk = myVboIndices->Init (theCtx, 1, myIndices->NbElements, reinterpret_cast<const GLuint*> (myIndices->Data()));
break;
}
default:
{
clearMemoryGL (theCtx);
return Standard_False;
}
}
if (!isOk)
{
TCollection_ExtendedString aMsg;
aMsg += "VBO creation for Primitive Array has failed for ";
aMsg += myIndices->NbElements;
aMsg += " indices. Out of memory?";
theCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, GL_DEBUG_TYPE_PERFORMANCE_ARB, 0, GL_DEBUG_SEVERITY_LOW_ARB, aMsg);
clearMemoryGL (theCtx);
return Standard_False;
}
return Standard_True;
}
// =======================================================================
// function : buildVBO
// purpose :
// =======================================================================
Standard_Boolean OpenGl_PrimitiveArray::buildVBO (const Handle(OpenGl_Context)& theCtx,
const Standard_Boolean theToKeepData) const
{
bool isNormalMode = theCtx->ToUseVbo();
if (myAttribs.IsNull() if (myAttribs.IsNull()
|| myAttribs->IsEmpty() || myAttribs->IsEmpty()
|| myAttribs->NbElements < 1) || myAttribs->NbElements < 1
|| myAttribs->NbAttributes < 1
|| myAttribs->NbAttributes > 10)
{ {
// vertices should be always defined - others are optional // vertices should be always defined - others are optional
return Standard_False; return Standard_False;
} }
if (isNormalMode
&& initNormalVbo (theCtx))
{
if (!theCtx->caps->keepArrayData
&& !theToKeepData)
{
myIndices.Nullify();
myAttribs.Nullify();
}
return Standard_True;
}
Handle(OpenGl_VertexBufferCompat) aVboAttribs;
switch (myAttribs->NbAttributes) switch (myAttribs->NbAttributes)
{ {
case 1: myVboAttribs = new OpenGl_VertexBufferT<1> (*myAttribs); break; case 1: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 1> (*myAttribs); break;
case 2: myVboAttribs = new OpenGl_VertexBufferT<2> (*myAttribs); break; case 2: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 2> (*myAttribs); break;
case 3: myVboAttribs = new OpenGl_VertexBufferT<3> (*myAttribs); break; case 3: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 3> (*myAttribs); break;
case 4: myVboAttribs = new OpenGl_VertexBufferT<4> (*myAttribs); break; case 4: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 4> (*myAttribs); break;
case 5: myVboAttribs = new OpenGl_VertexBufferT<5> (*myAttribs); break; case 5: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 5> (*myAttribs); break;
case 6: myVboAttribs = new OpenGl_VertexBufferT<6> (*myAttribs); break; case 6: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 6> (*myAttribs); break;
case 7: myVboAttribs = new OpenGl_VertexBufferT<7> (*myAttribs); break; case 7: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 7> (*myAttribs); break;
case 8: myVboAttribs = new OpenGl_VertexBufferT<8> (*myAttribs); break; case 8: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 8> (*myAttribs); break;
case 9: myVboAttribs = new OpenGl_VertexBufferT<9> (*myAttribs); break; case 9: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 9> (*myAttribs); break;
case 10: myVboAttribs = new OpenGl_VertexBufferT<10>(*myAttribs); break; case 10: aVboAttribs = new OpenGl_VertexBufferT<OpenGl_VertexBufferCompat, 10>(*myAttribs); break;
default: return Standard_False;
} }
aVboAttribs->initLink (myAttribs, 0, myAttribs->NbElements, GL_NONE);
if (!myVboAttribs->init (aGlCtx, 0, myAttribs->NbElements, myAttribs->Data(), GL_NONE, myAttribs->Stride))
{
clearMemoryGL (aGlCtx);
return Standard_False;
}
if (!myIndices.IsNull()) if (!myIndices.IsNull())
{ {
myVboIndices = new OpenGl_IndexBuffer(); Handle(OpenGl_VertexBufferCompat) aVboIndices = new OpenGl_VertexBufferCompat();
bool isOk = Standard_False;
switch (myIndices->Stride) switch (myIndices->Stride)
{ {
case 2: case 2:
{ {
isOk = myVboIndices->Init (aGlCtx, 1, myIndices->NbElements, reinterpret_cast<const GLushort*> (myIndices->Data())); aVboIndices->initLink (myIndices, 1, myIndices->NbElements, GL_UNSIGNED_SHORT);
break; break;
} }
case 4: case 4:
{ {
isOk = myVboIndices->Init (aGlCtx, 1, myIndices->NbElements, reinterpret_cast<const GLuint*> (myIndices->Data())); aVboIndices->initLink (myIndices, 1, myIndices->NbElements, GL_UNSIGNED_INT);
break; break;
} }
default: break; default:
} {
if (!isOk) return Standard_False;
{ }
clearMemoryGL (aGlCtx);
return Standard_False;
} }
myVboIndices = aVboIndices;
}
myVboAttribs = aVboAttribs;
if (!theCtx->caps->keepArrayData
&& !theToKeepData)
{
// does not make sense for compatibility mode
//myIndices.Nullify();
//myAttribs.Nullify();
} }
if (!aGlCtx->caps->keepArrayData)
{
myIndices.Nullify();
myAttribs.Nullify();
}
return Standard_True; return Standard_True;
} }
// ======================================================================= // =======================================================================
// function : DrawArray // function : drawArray
// purpose : // purpose :
// ======================================================================= // =======================================================================
void OpenGl_PrimitiveArray::DrawArray (Tint theLightingModel, void OpenGl_PrimitiveArray::drawArray (const Handle(OpenGl_Workspace)& theWorkspace,
const Aspect_InteriorStyle theInteriorStyle, const Graphic3d_Vec4* theFaceColors) const
Tint theEdgeFlag,
const TEL_COLOUR* theInteriorColour,
const TEL_COLOUR* theLineColour,
const TEL_COLOUR* theEdgeColour,
const Handle(OpenGl_Workspace)& theWorkspace) const
{ {
const Handle(OpenGl_Context)& aGlContext = theWorkspace->GetGlContext(); const Handle(OpenGl_Context)& aGlContext = theWorkspace->GetGlContext();
const Graphic3d_Vec4* aFaceColors = myBounds.IsNull() ? NULL : myBounds->Colors;
const bool toHilight = (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT) != 0; const bool toHilight = (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT) != 0;
bool hasVColors = false; bool hasVColors = false;
if (myVboAttribs.IsNull())
glColor3fv (myDrawMode <= GL_LINE_STRIP ? theLineColour->rgb : theInteriorColour->rgb);
// Temporarily disable environment mapping
if (myDrawMode <= GL_LINE_STRIP)
{ {
glPushAttrib (GL_ENABLE_BIT); if (myDrawMode == GL_POINTS)
glDisable (GL_TEXTURE_1D); {
glDisable (GL_TEXTURE_2D); // extreme compatibility mode - without sprites but with markers
drawMarkers (theWorkspace);
}
return;
} }
if ((myDrawMode > GL_LINE_STRIP && theInteriorStyle != Aspect_IS_EMPTY) || myVboAttribs->BindAllAttributes (aGlContext);
(myDrawMode <= GL_LINE_STRIP)) if (myVboAttribs->HasColorAttribute())
{ {
if (toHilight) if (toHilight)
{ {
aFaceColors = NULL; // disable per-vertex colors
} OpenGl_VertexBuffer::unbindAttribute (aGlContext, Graphic3d_TOA_COLOR);
if (theInteriorStyle == Aspect_IS_HIDDENLINE)
{
theEdgeFlag = 1;
aFaceColors = NULL;
}
// Sometimes the GL_LIGHTING mode is activated here
// without glEnable(GL_LIGHTING) call for an unknown reason, so it is necessary
// to call glEnable(GL_LIGHTING) to synchronize Light On/Off mechanism*
if (theLightingModel == 0 || myDrawMode <= GL_LINE_STRIP)
glDisable (GL_LIGHTING);
else
glEnable (GL_LIGHTING);
if (!myVboAttribs.IsNull())
{
myVboAttribs->BindFixed (aGlContext);
if (myVboAttribs->HasColorAttribute())
{
if (toHilight)
{
// disable per-vertex colors
OpenGl_VertexBuffer::unbindFixed (aGlContext, Graphic3d_TOA_COLOR);
}
else
{
hasVColors = true;
}
}
if (!myVboIndices.IsNull())
{
myVboIndices->Bind (aGlContext);
if (!myBounds.IsNull())
{
// draw primitives by vertex count with the indices
const size_t aStride = myVboIndices->GetDataType() == GL_UNSIGNED_SHORT ? sizeof(unsigned short) : sizeof(unsigned int);
GLubyte* anOffset = NULL;
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
if (aFaceColors != NULL) glColor3fv (aFaceColors[aGroupIter].GetData());
glDrawElements (myDrawMode, aNbElemsInGroup, myVboIndices->GetDataType(), anOffset);
anOffset += aStride * aNbElemsInGroup;
}
}
else
{
// draw one (or sequential) primitive by the indices
glDrawElements (myDrawMode, myVboIndices->GetElemsNb(), myVboIndices->GetDataType(), NULL);
}
myVboIndices->Unbind (aGlContext);
}
else if (!myBounds.IsNull())
{
GLint aFirstElem = 0;
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
if (aFaceColors != NULL) glColor3fv (aFaceColors[aGroupIter].GetData());
glDrawArrays (myDrawMode, aFirstElem, aNbElemsInGroup);
aFirstElem += aNbElemsInGroup;
}
}
else
{
if (myDrawMode == GL_POINTS)
{
DrawMarkers (theWorkspace);
}
else
{
glDrawArrays (myDrawMode, 0, myVboAttribs->GetElemsNb());
}
}
// bind with 0
myVboAttribs->UnbindFixed (aGlContext);
} }
else else
{ {
GLint aNbComp; hasVColors = true;
for (Standard_Integer anAttribIter = 0; anAttribIter < myAttribs->NbAttributes; ++anAttribIter)
{
const Graphic3d_Attribute& anAttrib = myAttribs->Attribute (anAttribIter);
if (anAttrib.Id == Graphic3d_TOA_COLOR)
{
if (toHilight)
{
continue;
}
hasVColors = true;
}
const GLenum aDataType = toGlDataType (anAttrib.DataType, aNbComp);
const GLvoid* aData = myAttribs->Data (anAttribIter);
if (aDataType == GL_NONE)
{
continue;
}
OpenGl_VertexBuffer::bindFixed (aGlContext, anAttrib.Id, aNbComp, aDataType, myAttribs->Stride, aData);
}
if (!myBounds.IsNull())
{
GLint aFirstElem = 0;
if (!myIndices.IsNull())
{
const GLenum anIndexType = toGlIndexType (myIndices->Stride);
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
if (aFaceColors != NULL) glColor3fv (aFaceColors[aGroupIter].GetData());
glDrawElements (myDrawMode, aNbElemsInGroup, anIndexType, myIndices->value (aFirstElem));
aFirstElem += aNbElemsInGroup;
}
}
else
{
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
if (aFaceColors != NULL) glColor3fv (aFaceColors[aGroupIter].GetData());
glDrawArrays (myDrawMode, aFirstElem, aNbElemsInGroup);
aFirstElem += aNbElemsInGroup;
}
}
}
else if (!myIndices.IsNull())
{
glDrawElements (myDrawMode, myIndices->NbElements, toGlIndexType (myIndices->Stride), myIndices->Data());
}
else
{
if (myDrawMode == GL_POINTS)
{
DrawMarkers (theWorkspace);
}
else
{
glDrawArrays (myDrawMode, 0, myAttribs->NbElements);
}
}
for (Standard_Integer anAttribIter = 0; anAttribIter < myAttribs->NbAttributes; ++anAttribIter)
{
const Graphic3d_Attribute& anAttrib = myAttribs->Attribute (anAttribIter);
OpenGl_VertexBuffer::unbindFixed (aGlContext, anAttrib.Id);
}
} }
} }
if (!myVboIndices.IsNull())
{
myVboIndices->Bind (aGlContext);
GLubyte* anOffset = myVboIndices->GetDataOffset();
if (!myBounds.IsNull())
{
// draw primitives by vertex count with the indices
const size_t aStride = myVboIndices->GetDataType() == GL_UNSIGNED_SHORT ? sizeof(unsigned short) : sizeof(unsigned int);
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
if (theFaceColors != NULL) glColor3fv (theFaceColors[aGroupIter].GetData());
glDrawElements (myDrawMode, aNbElemsInGroup, myVboIndices->GetDataType(), anOffset);
anOffset += aStride * aNbElemsInGroup;
}
}
else
{
// draw one (or sequential) primitive by the indices
glDrawElements (myDrawMode, myVboIndices->GetElemsNb(), myVboIndices->GetDataType(), anOffset);
}
myVboIndices->Unbind (aGlContext);
}
else if (!myBounds.IsNull())
{
GLint aFirstElem = 0;
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
if (theFaceColors != NULL) glColor3fv (theFaceColors[aGroupIter].GetData());
glDrawArrays (myDrawMode, aFirstElem, aNbElemsInGroup);
aFirstElem += aNbElemsInGroup;
}
}
else
{
if (myDrawMode == GL_POINTS)
{
drawMarkers (theWorkspace);
}
else
{
glDrawArrays (myDrawMode, 0, myVboAttribs->GetElemsNb());
}
}
// bind with 0
myVboAttribs->UnbindAllAttributes (aGlContext);
if (hasVColors) if (hasVColors)
{ {
theWorkspace->NamedStatus |= OPENGL_NS_RESMAT; theWorkspace->NamedStatus |= OPENGL_NS_RESMAT;
} }
if (theEdgeFlag && myDrawMode > GL_LINE_STRIP)
{
DrawEdges (theEdgeColour, theWorkspace);
}
if (myDrawMode <= GL_LINE_STRIP)
glPopAttrib();
} }
// ======================================================================= // =======================================================================
// function : DrawEdges // function : drawEdges
// purpose : // purpose :
// ======================================================================= // =======================================================================
void OpenGl_PrimitiveArray::DrawEdges (const TEL_COLOUR* theEdgeColour, void OpenGl_PrimitiveArray::drawEdges (const TEL_COLOUR* theEdgeColour,
const Handle(OpenGl_Workspace)& theWorkspace) const const Handle(OpenGl_Workspace)& theWorkspace) const
{ {
if (myVboAttribs.IsNull())
{
return;
}
glDisable (GL_LIGHTING); glDisable (GL_LIGHTING);
const Handle(OpenGl_Context)& aGlContext = theWorkspace->GetGlContext(); const Handle(OpenGl_Context)& aGlContext = theWorkspace->GetGlContext();
const OpenGl_AspectLine* anAspectLineOld = NULL; const OpenGl_AspectLine* anAspectLineOld = NULL;
if (myDrawMode > GL_LINE_STRIP)
anAspectLineOld = theWorkspace->SetAspectLine (theWorkspace->AspectFace (Standard_True)->AspectEdge());
const OpenGl_AspectLine* anAspect = theWorkspace->AspectLine (Standard_True);
glPushAttrib (GL_POLYGON_BIT);
glPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
if (aGlContext->IsGlGreaterEqual (2, 0))
{ {
anAspectLineOld = theWorkspace->SetAspectLine (theWorkspace->AspectFace (Standard_True)->AspectEdge()); bindProgram (theWorkspace, anAspect);
const OpenGl_AspectLine* anAspect = theWorkspace->AspectLine (Standard_True);
glPushAttrib (GL_POLYGON_BIT);
glPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
if (aGlContext->IsGlGreaterEqual (2, 0))
{
BindProgramWithMaterial (theWorkspace, anAspect);
}
} }
/// OCC22236 NOTE: draw edges for all situations: /// OCC22236 NOTE: draw edges for all situations:
/// 1) draw elements with GL_LINE style as edges from myPArray->bufferVBO[VBOEdges] indices array /// 1) draw elements with GL_LINE style as edges from myPArray->bufferVBO[VBOEdges] indices array
/// 2) draw elements from vertex array, when bounds defines count of primitive's vertices. /// 2) draw elements from vertex array, when bounds defines count of primitive's vertices.
/// 3) draw primitive's edges by vertexes if no edges and bounds array is specified /// 3) draw primitive's edges by vertexes if no edges and bounds array is specified
if (!myVboAttribs.IsNull()) myVboAttribs->BindPositionAttribute (aGlContext);
glColor3fv (theEdgeColour->rgb);
if (!myVboIndices.IsNull())
{ {
myVboAttribs->BindFixedPosition (aGlContext); myVboIndices->Bind (aGlContext);
glColor3fv (theEdgeColour->rgb); GLubyte* anOffset = myVboIndices->GetDataOffset();
if (!myVboIndices.IsNull())
{
myVboIndices->Bind (aGlContext);
// draw primitives by vertex count with the indices // draw primitives by vertex count with the indices
if (!myBounds.IsNull()) if (!myBounds.IsNull())
{
const size_t aStride = myVboIndices->GetDataType() == GL_UNSIGNED_SHORT ? sizeof(unsigned short) : sizeof(unsigned int);
GLubyte* anOffset = NULL;
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
glDrawElements (myDrawMode, aNbElemsInGroup, myVboIndices->GetDataType(), anOffset);
anOffset += aStride * aNbElemsInGroup;
}
}
// draw one (or sequential) primitive by the indices
else
{
glDrawElements (myDrawMode, myVboIndices->GetElemsNb(), myVboIndices->GetDataType(), NULL);
}
myVboIndices->Unbind (aGlContext);
}
else if (!myBounds.IsNull())
{ {
GLint aFirstElem = 0; const size_t aStride = myVboIndices->GetDataType() == GL_UNSIGNED_SHORT ? sizeof(unsigned short) : sizeof(unsigned int);
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter) for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{ {
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter]; const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
glDrawArrays (myDrawMode, aFirstElem, aNbElemsInGroup); glDrawElements (myDrawMode, aNbElemsInGroup, myVboIndices->GetDataType(), anOffset);
aFirstElem += aNbElemsInGroup; anOffset += aStride * aNbElemsInGroup;
} }
} }
// draw one (or sequential) primitive by the indices
else else
{ {
glDrawArrays (myDrawMode, 0, myAttribs->NbElements); glDrawElements (myDrawMode, myVboIndices->GetElemsNb(), myVboIndices->GetDataType(), anOffset);
}
myVboIndices->Unbind (aGlContext);
}
else if (!myBounds.IsNull())
{
GLint aFirstElem = 0;
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
glDrawArrays (myDrawMode, aFirstElem, aNbElemsInGroup);
aFirstElem += aNbElemsInGroup;
} }
// unbind buffers
myVboAttribs->UnbindFixed (aGlContext, GL_VERTEX_ARRAY);
} }
else else
{ {
GLint aNbComp; glDrawArrays (myDrawMode, 0, myAttribs->NbElements);
for (Standard_Integer anAttribIter = 0; anAttribIter < myAttribs->NbAttributes; ++anAttribIter)
{
const Graphic3d_Attribute& anAttrib = myAttribs->Attribute (anAttribIter);
if (anAttrib.Id == Graphic3d_TOA_POS)
{
const GLenum aDataType = toGlDataType (anAttrib.DataType, aNbComp);
const GLvoid* aData = myAttribs->Data (anAttribIter);
OpenGl_VertexBuffer::bindFixed (aGlContext, anAttrib.Id, aNbComp, aDataType, myAttribs->Stride, aData);
break;
}
}
glColor3fv (theEdgeColour->rgb);
if (!myBounds.IsNull())
{
if (!myIndices.IsNull())
{
const GLenum anIndexType = toGlIndexType (myIndices->Stride);
GLint aFirstElem = 0;
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
glDrawElements (myDrawMode, aNbElemsInGroup, anIndexType, myIndices->value (aFirstElem));
aFirstElem += aNbElemsInGroup;
}
}
else
{
GLint aFirstElem = 0;
for (Standard_Integer aGroupIter = 0; aGroupIter < myBounds->NbBounds; ++aGroupIter)
{
const GLint aNbElemsInGroup = myBounds->Bounds[aGroupIter];
glDrawArrays (myDrawMode, aFirstElem, aNbElemsInGroup);
aFirstElem += aNbElemsInGroup;
}
}
}
else if (!myIndices.IsNull())
{
glDrawElements (myDrawMode, myIndices->NbElements, toGlIndexType (myIndices->Stride), myIndices->Data());
}
else
{
glDrawArrays (myDrawMode, 0, myAttribs->NbElements);
}
} }
// unbind buffers
myVboAttribs->UnbindAttribute (aGlContext, Graphic3d_TOA_POS);
if (myDrawMode > GL_LINE_STRIP) if (myDrawMode > GL_LINE_STRIP)
{ {
// Restore line context // Restore line context
@ -620,10 +574,10 @@ void OpenGl_PrimitiveArray::DrawEdges (const TEL_COLOUR* theEdgeCo
} }
// ======================================================================= // =======================================================================
// function : DrawMarkers // function : drawMarkers
// purpose : // purpose :
// ======================================================================= // =======================================================================
void OpenGl_PrimitiveArray::DrawMarkers (const Handle(OpenGl_Workspace)& theWorkspace) const void OpenGl_PrimitiveArray::drawMarkers (const Handle(OpenGl_Workspace)& theWorkspace) const
{ {
const OpenGl_AspectMarker* anAspectMarker = theWorkspace->AspectMarker (Standard_True); const OpenGl_AspectMarker* anAspectMarker = theWorkspace->AspectMarker (Standard_True);
const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext(); const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
@ -815,27 +769,16 @@ void OpenGl_PrimitiveArray::Render (const Handle(OpenGl_Workspace)& theWorkspace
// create VBOs on first render call // create VBOs on first render call
const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext(); const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
if (!myIsVboInit if (!myIsVboInit)
&& !aCtx->caps->vboDisable
&& aCtx->core15 != NULL
&& (myDrawMode != GL_POINTS || anAspectMarker->SpriteRes (theWorkspace).IsNull() || !anAspectMarker->SpriteRes (theWorkspace)->IsDisplayList()))
{ {
if (!BuildVBO (theWorkspace)) // compatibility - keep data to draw markers using display lists
{ const Standard_Boolean toKeepData = myDrawMode == GL_POINTS
TCollection_ExtendedString aMsg; && !anAspectMarker->SpriteRes (theWorkspace).IsNull()
aMsg += "VBO creation for Primitive Array has failed for "; && anAspectMarker->SpriteRes (theWorkspace)->IsDisplayList();
aMsg += myAttribs->NbElements; buildVBO (aCtx, toKeepData);
aMsg += " vertices. Out of memory?";
aCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, GL_DEBUG_TYPE_PERFORMANCE_ARB, 0, GL_DEBUG_SEVERITY_LOW_ARB, aMsg);
}
myIsVboInit = Standard_True; myIsVboInit = Standard_True;
} }
if (myDrawMode <= GL_LINE_STRIP)
{
glDisable (GL_LIGHTING);
}
Tint aFrontLightingModel = anAspectFace->IntFront().color_mask; Tint aFrontLightingModel = anAspectFace->IntFront().color_mask;
const TEL_COLOUR* anInteriorColor = &anAspectFace->IntFront().matcol; const TEL_COLOUR* anInteriorColor = &anAspectFace->IntFront().matcol;
const TEL_COLOUR* anEdgeColor = &anAspectFace->AspectEdge()->Color(); const TEL_COLOUR* anEdgeColor = &anAspectFace->AspectEdge()->Color();
@ -848,34 +791,53 @@ void OpenGl_PrimitiveArray::Render (const Handle(OpenGl_Workspace)& theWorkspace
aFrontLightingModel = 0; aFrontLightingModel = 0;
} }
if (aCtx->IsGlGreaterEqual (2, 0)) // Temporarily disable environment mapping
if (myDrawMode <= GL_LINE_STRIP)
{ {
switch (myDrawMode) glPushAttrib (GL_ENABLE_BIT);
glDisable (GL_TEXTURE_1D);
glDisable (GL_TEXTURE_2D);
}
// manage FFP lighting
if (aFrontLightingModel == 0
|| myVboAttribs.IsNull()
|| !myVboAttribs->HasNormalAttribute())
{
glDisable (GL_LIGHTING);
}
else
{
glEnable (GL_LIGHTING);
}
bindProgram (theWorkspace,
anAspectFace, anAspectLine, anAspectMarker,
myDrawMode);
if ((myDrawMode > GL_LINE_STRIP && anAspectFace->InteriorStyle() != Aspect_IS_EMPTY) ||
(myDrawMode <= GL_LINE_STRIP))
{
const bool toHilight = (theWorkspace->NamedStatus & OPENGL_NS_HIGHLIGHT) != 0;
const Graphic3d_Vec4* aFaceColors = !myBounds.IsNull() && !toHilight && anAspectFace->InteriorStyle() != Aspect_IS_HIDDENLINE
? myBounds->Colors
: NULL;
glColor3fv (myDrawMode <= GL_LINE_STRIP ? aLineColor->rgb : anInteriorColor->rgb);
drawArray (theWorkspace, aFaceColors);
}
if (myDrawMode > GL_LINE_STRIP)
{
if (anAspectFace->Edge()
|| anAspectFace->InteriorStyle() == Aspect_IS_HIDDENLINE)
{ {
case GL_POINTS: drawEdges (anEdgeColor, theWorkspace);
{
BindProgramWithMaterial (theWorkspace, anAspectMarker);
break;
}
case GL_LINES:
case GL_LINE_STRIP:
{
BindProgramWithMaterial (theWorkspace, anAspectLine);
break;
}
default: // polygonal array
{
BindProgramWithMaterial (theWorkspace, anAspectFace);
break;
}
} }
} }
DrawArray (aFrontLightingModel, if (myDrawMode <= GL_LINE_STRIP)
anAspectFace->InteriorStyle(), {
anAspectFace->Edge(), glPopAttrib();
anInteriorColor, }
aLineColor, aCtx->BindProgram (NULL);
anEdgeColor,
theWorkspace);
} }

25
src/OpenGl/OpenGl_PrimitiveArray.hxx
View File

@ -28,7 +28,9 @@
#include <OpenGl_Element.hxx> #include <OpenGl_Element.hxx>
class OpenGl_GraphicDriver; class OpenGl_GraphicDriver;
class Handle(OpenGl_ShaderProgram);
//! Class for rendering of arbitrary primitive array.
class OpenGl_PrimitiveArray : public OpenGl_Element class OpenGl_PrimitiveArray : public OpenGl_Element
{ {
public: public:
@ -69,24 +71,25 @@ public:
private: private:
//! Initialize normal (OpenGL-provided) VBO
Standard_Boolean initNormalVbo (const Handle(OpenGl_Context)& theCtx) const;
//! VBO initialization procedures //! VBO initialization procedures
Standard_Boolean BuildVBO (const Handle(OpenGl_Workspace)& theWorkspace) const; //! @param theCtx bound GL context
//! @param theToKeepData when true, myAttribs will not be nullified after VBO creation
Standard_Boolean buildVBO (const Handle(OpenGl_Context)& theCtx,
const Standard_Boolean theToKeepData) const;
void clearMemoryGL (const Handle(OpenGl_Context)& theGlCtx) const; void clearMemoryGL (const Handle(OpenGl_Context)& theGlCtx) const;
//! Main procedure to draw array //! Main procedure to draw array
void DrawArray (Tint theLightingModel, void drawArray (const Handle(OpenGl_Workspace)& theWorkspace,
const Aspect_InteriorStyle theInteriorStyle, const Graphic3d_Vec4* theFaceColors) const;
Tint theEdgeFlag,
const TEL_COLOUR* theInteriorColour,
const TEL_COLOUR* theLineColour,
const TEL_COLOUR* theEdgeColour,
const Handle(OpenGl_Workspace)& theWorkspace) const;
//! Auxiliary procedures //! Auxiliary procedures
void DrawEdges (const TEL_COLOUR* theEdgeColour, void drawEdges (const TEL_COLOUR* theEdgeColour,
const Handle(OpenGl_Workspace)& theWorkspace) const; const Handle(OpenGl_Workspace)& theWorkspace) const;
void DrawMarkers (const Handle(OpenGl_Workspace)& theWorkspace) const; void drawMarkers (const Handle(OpenGl_Workspace)& theWorkspace) const;
protected: protected:
@ -95,7 +98,7 @@ protected:
protected: protected:
mutable Handle(OpenGl_IndexBuffer) myVboIndices; mutable Handle(OpenGl_VertexBuffer) myVboIndices;
mutable Handle(OpenGl_VertexBuffer) myVboAttribs; mutable Handle(OpenGl_VertexBuffer) myVboAttribs;
mutable Handle(Graphic3d_IndexBuffer) myIndices; mutable Handle(Graphic3d_IndexBuffer) myIndices;

1
src/OpenGl/OpenGl_ShaderManager.cxx
View File

@ -34,7 +34,6 @@ IMPLEMENT_STANDARD_RTTIEXT(OpenGl_ShaderManager, Standard_Transient)
// ======================================================================= // =======================================================================
OpenGl_ShaderManager::OpenGl_ShaderManager (OpenGl_Context* theContext) OpenGl_ShaderManager::OpenGl_ShaderManager (OpenGl_Context* theContext)
: myContext (theContext), : myContext (theContext),
myIsPP (Standard_False),
myLastView (NULL) myLastView (NULL)
{ {
// //

1
src/OpenGl/OpenGl_ShaderManager.hxx
View File

@ -187,7 +187,6 @@ protected:
private: private:
Standard_Boolean myIsPP; //!< Is any program object bound (programmable pipeline)?
const OpenGl_View* myLastView; //!< Pointer to the last view shader manager used with. const OpenGl_View* myLastView; //!< Pointer to the last view shader manager used with.
}; };

45
src/OpenGl/OpenGl_ShaderProgram.cxx
View File

@ -16,6 +16,7 @@
#include <OSD_File.hxx> #include <OSD_File.hxx>
#include <OSD_Protection.hxx> #include <OSD_Protection.hxx>
#include <Graphic3d_Buffer.hxx>
#include <Standard_Assert.hxx> #include <Standard_Assert.hxx>
#include <Standard_Atomic.hxx> #include <Standard_Atomic.hxx>
#include <TCollection_ExtendedString.hxx> #include <TCollection_ExtendedString.hxx>
@ -262,6 +263,12 @@ Standard_Boolean OpenGl_ShaderProgram::Initialize (const Handle(OpenGl_Context)&
} }
} }
// bind locations for pre-defined Vertex Attributes
SetAttributeName (theCtx, Graphic3d_TOA_POS, "occVertex");
SetAttributeName (theCtx, Graphic3d_TOA_NORM, "occNormal");
SetAttributeName (theCtx, Graphic3d_TOA_UV, "occTexCoord");
SetAttributeName (theCtx, Graphic3d_TOA_COLOR, "occColor");
if (!Link (theCtx)) if (!Link (theCtx))
{ {
TCollection_AsciiString aLog; TCollection_AsciiString aLog;
@ -413,21 +420,6 @@ Standard_Boolean OpenGl_ShaderProgram::FetchInfoLog (const Handle(OpenGl_Context
return Standard_True; return Standard_True;
} }
// =======================================================================
// function : Bind
// purpose : Sets the program object as part of current rendering state
// =======================================================================
void OpenGl_ShaderProgram::Bind (const Handle(OpenGl_Context)& theCtx) const
{
if (myProgramID == NO_PROGRAM)
{
return;
}
theCtx->core20->glUseProgram (myProgramID);
theCtx->ShaderManager()->myIsPP = Standard_True;
}
// ======================================================================= // =======================================================================
// function : ApplyVariables // function : ApplyVariables
// purpose : Fetches uniform variables from proxy shader program // purpose : Fetches uniform variables from proxy shader program
@ -448,29 +440,6 @@ Standard_Boolean OpenGl_ShaderProgram::ApplyVariables(const Handle(OpenGl_Contex
return Standard_True; return Standard_True;
} }
// =======================================================================
// function : BindWithVariables
// purpose : Binds the program object and applies variables
// =======================================================================
Standard_Boolean OpenGl_ShaderProgram::BindWithVariables (const Handle(OpenGl_Context)& theCtx)
{
Bind (theCtx);
return ApplyVariables (theCtx);
}
// =======================================================================
// function : Unbind
// purpose : Reverts to fixed-function graphics pipeline (FFP)
// =======================================================================
void OpenGl_ShaderProgram::Unbind (const Handle(OpenGl_Context)& theCtx)
{
if (theCtx->ShaderManager()->myIsPP)
{
theCtx->core20->glUseProgram (NO_PROGRAM);
theCtx->ShaderManager()->myIsPP = Standard_False;
}
}
// ======================================================================= // =======================================================================
// function : ActiveState // function : ActiveState
// purpose : Returns index of last modification for specified state type // purpose : Returns index of last modification for specified state type

15
src/OpenGl/OpenGl_ShaderProgram.hxx
View File

@ -181,21 +181,18 @@ public:
//! Fetches uniform variables from proxy shader program. //! Fetches uniform variables from proxy shader program.
Standard_EXPORT Standard_Boolean ApplyVariables (const Handle(OpenGl_Context)& theCtx); Standard_EXPORT Standard_Boolean ApplyVariables (const Handle(OpenGl_Context)& theCtx);
//! Sets the program object as part of current rendering state.
Standard_EXPORT void Bind (const Handle(OpenGl_Context)& theCtx) const;
//! Binds the program object and applies variables from proxy shader program.
Standard_EXPORT Standard_Boolean BindWithVariables (const Handle(OpenGl_Context)& theCtx);
//! Reverts to fixed-function graphics pipeline (FFP).
Standard_EXPORT static void Unbind (const Handle(OpenGl_Context)& theCtx);
//! @return true if current object was initialized //! @return true if current object was initialized
inline bool IsValid() const inline bool IsValid() const
{ {
return myProgramID != NO_PROGRAM; return myProgramID != NO_PROGRAM;
} }
//! @return program ID
inline GLuint ProgramId() const
{
return myProgramID;
}
private: private:
//! Returns index of last modification of variables of specified state type. //! Returns index of last modification of variables of specified state type.

68
src/OpenGl/OpenGl_Text.cxx
View File

@ -285,8 +285,6 @@ void OpenGl_Text::releaseVbos (OpenGl_Context* theCtx)
myTextures.Clear(); myTextures.Clear();
myVertsVbo.Clear(); myVertsVbo.Clear();
myTCrdsVbo.Clear(); myTCrdsVbo.Clear();
myVertsArray.Clear();
myTCrdsArray.Clear();
} }
// ======================================================================= // =======================================================================
@ -384,11 +382,11 @@ void OpenGl_Text::Render (const Handle(OpenGl_Workspace)& theWorkspace) const
if (aCtx->IsGlGreaterEqual (2, 0)) if (aCtx->IsGlGreaterEqual (2, 0))
{ {
Handle(OpenGl_ShaderProgram) aProgram = aTextAspect->ShaderProgramRes (theWorkspace); const Handle(OpenGl_ShaderProgram)& aProgram = aTextAspect->ShaderProgramRes (theWorkspace);
aCtx->BindProgram (aProgram);
if (!aProgram.IsNull()) if (!aProgram.IsNull())
{ {
aProgram->BindWithVariables (aCtx); aProgram->ApplyVariables (aCtx);
const OpenGl_MaterialState* aMaterialState = aCtx->ShaderManager()->MaterialState (aProgram); const OpenGl_MaterialState* aMaterialState = aCtx->ShaderManager()->MaterialState (aProgram);
@ -397,10 +395,6 @@ void OpenGl_Text::Render (const Handle(OpenGl_Workspace)& theWorkspace) const
aCtx->ShaderManager()->PushState (aProgram); aCtx->ShaderManager()->PushState (aProgram);
} }
else
{
OpenGl_ShaderProgram::Unbind (aCtx);
}
} }
// use highlight color or colors from aspect // use highlight color or colors from aspect
@ -513,45 +507,28 @@ void OpenGl_Text::drawText (const Handle(OpenGl_PrinterContext)& ,
} }
#endif #endif
if (myVertsVbo.Length() == myTextures.Length()) if (myVertsVbo.Length() != myTextures.Length()
|| myTextures.IsEmpty())
{ {
for (Standard_Integer anIter = 0; anIter < myTextures.Length(); ++anIter) return;
{
const GLuint aTexId = myTextures.Value (anIter);
const Handle(OpenGl_VertexBuffer)& aVerts = myVertsVbo.Value (anIter);
const Handle(OpenGl_VertexBuffer)& aTCrds = myTCrdsVbo.Value (anIter);
aVerts->BindFixed (theCtx, GL_VERTEX_ARRAY);
aTCrds->BindFixed (theCtx, GL_TEXTURE_COORD_ARRAY);
glBindTexture (GL_TEXTURE_2D, aTexId);
glDrawArrays (GL_TRIANGLES, 0, GLsizei(aVerts->GetElemsNb()));
glBindTexture (GL_TEXTURE_2D, 0);
aTCrds->UnbindFixed (theCtx, GL_TEXTURE_COORD_ARRAY);
aVerts->UnbindFixed (theCtx, GL_VERTEX_ARRAY);
}
} }
else if (myVertsArray.Length() == myTextures.Length())
for (Standard_Integer anIter = 0; anIter < myTextures.Length(); ++anIter)
{ {
glEnableClientState (GL_VERTEX_ARRAY); const GLuint aTexId = myTextures.Value (anIter);
glEnableClientState (GL_TEXTURE_COORD_ARRAY); glBindTexture (GL_TEXTURE_2D, aTexId);
for (Standard_Integer anIter = 0; anIter < myTextures.Length(); ++anIter)
{
const GLuint aTexId = myTextures.Value (anIter);
const Handle(OpenGl_Vec2Array)& aVerts = myVertsArray.Value (anIter);
const Handle(OpenGl_Vec2Array)& aTCrds = myTCrdsArray.Value (anIter);
glVertexPointer (2, GL_FLOAT, 0, (GLfloat* )&aVerts->First()); const Handle(OpenGl_VertexBuffer)& aVerts = myVertsVbo.Value (anIter);
glTexCoordPointer (2, GL_FLOAT, 0, (GLfloat* )&aTCrds->First()); const Handle(OpenGl_VertexBuffer)& aTCrds = myTCrdsVbo.Value (anIter);
glBindTexture (GL_TEXTURE_2D, aTexId); aVerts->BindAttribute (theCtx, Graphic3d_TOA_POS);
aTCrds->BindAttribute (theCtx, Graphic3d_TOA_UV);
glDrawArrays (GL_TRIANGLES, 0, aVerts->Length()); glDrawArrays (GL_TRIANGLES, 0, GLsizei(aVerts->GetElemsNb()));
glBindTexture (GL_TEXTURE_2D, 0); aVerts->UnbindAttribute (theCtx, Graphic3d_TOA_UV);
} aVerts->UnbindAttribute (theCtx, Graphic3d_TOA_POS);
glDisableClientState (GL_TEXTURE_COORD_ARRAY);
glDisableClientState (GL_VERTEX_ARRAY);
} }
glBindTexture (GL_TEXTURE_2D, 0);
} }
// ======================================================================= // =======================================================================
@ -654,14 +631,7 @@ void OpenGl_Text::render (const Handle(OpenGl_PrinterContext)& thePrintCtx,
aFormatter.Append (theCtx, myString, *myFont.operator->()); aFormatter.Append (theCtx, myString, *myFont.operator->());
aFormatter.Format(); aFormatter.Format();
if (!theCtx->caps->vboDisable && theCtx->core15 != NULL) aFormatter.Result (theCtx, myTextures, myVertsVbo, myTCrdsVbo);
{
aFormatter.Result (theCtx, myTextures, myVertsVbo, myTCrdsVbo);
}
else
{
aFormatter.Result (theCtx, myTextures, myVertsArray, myTCrdsArray);
}
aFormatter.BndBox (myBndBox); aFormatter.BndBox (myBndBox);
} }

2
src/OpenGl/OpenGl_Text.hxx
View File

@ -133,8 +133,6 @@ protected:
mutable NCollection_Vector<GLuint> myTextures; //!< textures' IDs mutable NCollection_Vector<GLuint> myTextures; //!< textures' IDs
mutable NCollection_Vector<Handle(OpenGl_VertexBuffer)> myVertsVbo; //!< VBOs of vertices mutable NCollection_Vector<Handle(OpenGl_VertexBuffer)> myVertsVbo; //!< VBOs of vertices
mutable NCollection_Vector<Handle(OpenGl_VertexBuffer)> myTCrdsVbo; //!< VBOs of texture coordinates mutable NCollection_Vector<Handle(OpenGl_VertexBuffer)> myTCrdsVbo; //!< VBOs of texture coordinates
mutable NCollection_Vector<Handle(OpenGl_Vec2Array)> myVertsArray; //!< arrays of vertices (for compatibility mode)
mutable NCollection_Vector<Handle(OpenGl_Vec2Array)> myTCrdsArray; //!< arrays of vertices (for compatibility mode)
mutable Font_FTFont::Rect myBndBox; mutable Font_FTFont::Rect myBndBox;
protected: protected:

52
src/OpenGl/OpenGl_TextFormatter.cxx
View File

@ -15,7 +15,7 @@
#include <OpenGl_TextFormatter.hxx> #include <OpenGl_TextFormatter.hxx>
#include <OpenGl_VertexBuffer.hxx> #include <OpenGl_VertexBufferCompat.hxx>
#include <cmath> #include <cmath>
@ -220,10 +220,20 @@ void OpenGl_TextFormatter::Result (const Handle(OpenGl_Context)&
theVertsPerTexture.Clear(); theVertsPerTexture.Clear();
theTCrdsPerTexture.Clear(); theTCrdsPerTexture.Clear();
const bool isNormalMode = theCtx->ToUseVbo();
Handle(OpenGl_VertexBuffer) aVertsVbo, aTcrdsVbo;
while (theVertsPerTexture.Length() < theTextures.Length()) while (theVertsPerTexture.Length() < theTextures.Length())
{ {
Handle(OpenGl_VertexBuffer) aVertsVbo = new OpenGl_VertexBuffer(); if (isNormalMode)
Handle(OpenGl_VertexBuffer) aTcrdsVbo = new OpenGl_VertexBuffer(); {
aVertsVbo = new OpenGl_VertexBuffer();
aTcrdsVbo = new OpenGl_VertexBuffer();
}
else
{
aVertsVbo = new OpenGl_VertexBufferCompat();
aTcrdsVbo = new OpenGl_VertexBufferCompat();
}
theVertsPerTexture.Append (aVertsVbo); theVertsPerTexture.Append (aVertsVbo);
theTCrdsPerTexture.Append (aTcrdsVbo); theTCrdsPerTexture.Append (aTcrdsVbo);
aVertsVbo->Create (theCtx); aVertsVbo->Create (theCtx);
@ -262,42 +272,6 @@ void OpenGl_TextFormatter::Result (const Handle(OpenGl_Context)&
myVboEditor.Init (NULL, NULL); myVboEditor.Init (NULL, NULL);
} }
// =======================================================================
// function : Result
// purpose :
// =======================================================================
void OpenGl_TextFormatter::Result (const Handle(OpenGl_Context)& /*theCtx*/,
NCollection_Vector<GLuint>& theTextures,
NCollection_Vector<Handle(OpenGl_Vec2Array)>& theVertsPerTexture,
NCollection_Vector<Handle(OpenGl_Vec2Array)>& theTCrdsPerTexture) const
{
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > > aVertsPerTexture;
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > > aTCrdsPerTexture;
Result (theTextures, aVertsPerTexture, aTCrdsPerTexture);
theVertsPerTexture.Clear();
theTCrdsPerTexture.Clear();
for (Standard_Integer aTextureIter = 0; aTextureIter < theTextures.Length(); ++aTextureIter)
{
const NCollection_Vector<OpenGl_Vec2>& aVerts = *aVertsPerTexture.Value (aTextureIter);
const NCollection_Vector<OpenGl_Vec2>& aTCrds = *aTCrdsPerTexture.Value (aTextureIter);
Handle(OpenGl_Vec2Array) aVertsArray = new OpenGl_Vec2Array (1, aVerts.Length());
Handle(OpenGl_Vec2Array) aTCrdsArray = new OpenGl_Vec2Array (1, aVerts.Length());
theVertsPerTexture.Append (aVertsArray);
theTCrdsPerTexture.Append (aTCrdsArray);
for (Standard_Integer aVertIter = 0; aVertIter < aVerts.Length(); ++aVertIter)
{
aVertsArray->ChangeValue (aVertIter + 1) = aVerts.Value (aVertIter);
}
for (Standard_Integer aVertIter = 0; aVertIter < aVerts.Length(); ++aVertIter)
{
aTCrdsArray->ChangeValue (aVertIter + 1) = aTCrds.Value (aVertIter);
}
}
}
// ======================================================================= // =======================================================================
// function : Append // function : Append
// purpose : // purpose :

9
src/OpenGl/OpenGl_TextFormatter.hxx
View File

@ -24,9 +24,6 @@
#include <NCollection_String.hxx> #include <NCollection_String.hxx>
typedef NCollection_Array1<OpenGl_Vec2> OpenGl_Vec2Array;
typedef NCollection_Handle<OpenGl_Vec2Array> Handle(OpenGl_Vec2Array);
//! This class intended to prepare formatted text. //! This class intended to prepare formatted text.
class OpenGl_TextFormatter : public Standard_Transient class OpenGl_TextFormatter : public Standard_Transient
{ {
@ -63,12 +60,6 @@ public:
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theVertsPerTexture, NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theVertsPerTexture,
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theTCrdsPerTexture) const; NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theTCrdsPerTexture) const;
//! Retrieve formatting results.
Standard_EXPORT void Result (const Handle(OpenGl_Context)& theCtx,
NCollection_Vector<GLuint>& theTextures,
NCollection_Vector<Handle(OpenGl_Vec2Array)>& theVertsPerTexture,
NCollection_Vector<Handle(OpenGl_Vec2Array)>& theTCrdsPerTexture) const;
//! @return width of formatted text. //! @return width of formatted text.
inline Standard_ShortReal ResultWidth() const inline Standard_ShortReal ResultWidth() const
{ {

88
src/OpenGl/OpenGl_VertexBuffer.cxx
View File

@ -26,6 +26,7 @@ IMPLEMENT_STANDARD_RTTIEXT(OpenGl_VertexBuffer, OpenGl_Resource)
// ======================================================================= // =======================================================================
OpenGl_VertexBuffer::OpenGl_VertexBuffer() OpenGl_VertexBuffer::OpenGl_VertexBuffer()
: OpenGl_Resource(), : OpenGl_Resource(),
myOffset (NULL),
myBufferId (NO_BUFFER), myBufferId (NO_BUFFER),
myComponentsNb (4), myComponentsNb (4),
myElemsNb (0), myElemsNb (0),
@ -84,6 +85,7 @@ void OpenGl_VertexBuffer::Release (OpenGl_Context* theGlCtx)
{ {
theGlCtx->core15->glDeleteBuffers (1, &myBufferId); theGlCtx->core15->glDeleteBuffers (1, &myBufferId);
} }
myOffset = NULL;
myBufferId = NO_BUFFER; myBufferId = NO_BUFFER;
} }
@ -171,7 +173,7 @@ void OpenGl_VertexBuffer::BindVertexAttrib (const Handle(OpenGl_Context)& theGlC
} }
Bind (theGlCtx); Bind (theGlCtx);
theGlCtx->core20->glEnableVertexAttribArray (theAttribLoc); theGlCtx->core20->glEnableVertexAttribArray (theAttribLoc);
theGlCtx->core20->glVertexAttribPointer (theAttribLoc, GLint (myComponentsNb), myDataType, GL_FALSE, 0, NULL); theGlCtx->core20->glVertexAttribPointer (theAttribLoc, GLint (myComponentsNb), myDataType, GL_FALSE, 0, myOffset);
} }
// ======================================================================= // =======================================================================
@ -190,91 +192,30 @@ void OpenGl_VertexBuffer::UnbindVertexAttrib (const Handle(OpenGl_Context)& theG
} }
// ======================================================================= // =======================================================================
// function : BindFixed // function : BindAllAttributes
// purpose : // purpose :
// ======================================================================= // =======================================================================
void OpenGl_VertexBuffer::BindFixed (const Handle(OpenGl_Context)& theGlCtx, void OpenGl_VertexBuffer::BindAllAttributes (const Handle(OpenGl_Context)& ) const
const GLenum theMode) const
{
if (!IsValid())
{
return;
}
Bind (theGlCtx);
glEnableClientState (theMode);
switch (theMode)
{
case GL_VERTEX_ARRAY:
{
glVertexPointer (static_cast<GLint> (myComponentsNb), myDataType, 0, NULL);
break;
}
case GL_NORMAL_ARRAY:
{
glNormalPointer (myDataType, 0, NULL);
break;
}
case GL_TEXTURE_COORD_ARRAY:
{
glTexCoordPointer (static_cast<GLint> (myComponentsNb), myDataType, 0, NULL);
break;
}
case GL_COLOR_ARRAY:
{
glColorPointer (static_cast<GLint> (myComponentsNb), myDataType, 0, NULL);
glColorMaterial (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
glEnable (GL_COLOR_MATERIAL);
break;
}
default: break;
}
}
// =======================================================================
// function : UnbindFixed
// purpose :
// =======================================================================
void OpenGl_VertexBuffer::UnbindFixed (const Handle(OpenGl_Context)& theGlCtx,
const GLenum theMode) const
{
if (!IsValid())
{
return;
}
Unbind (theGlCtx);
glDisableClientState (theMode);
if (theMode == GL_COLOR_ARRAY)
{
glDisable (GL_COLOR_MATERIAL);
}
}
// =======================================================================
// function : BindFixed
// purpose :
// =======================================================================
void OpenGl_VertexBuffer::BindFixed (const Handle(OpenGl_Context)& ) const
{ {
// //
} }
// ======================================================================= // =======================================================================
// function : BindFixedPosition // function : BindPositionAttribute
// purpose : // purpose :
// ======================================================================= // =======================================================================
void OpenGl_VertexBuffer::BindFixedPosition (const Handle(OpenGl_Context)& ) const void OpenGl_VertexBuffer::BindPositionAttribute (const Handle(OpenGl_Context)& ) const
{ {
// //
} }
// ======================================================================= // =======================================================================
// function : UnbindFixed // function : UnbindAllAttributes
// purpose : // purpose :
// ======================================================================= // =======================================================================
void OpenGl_VertexBuffer::UnbindFixed (const Handle(OpenGl_Context)& ) const void OpenGl_VertexBuffer::UnbindAllAttributes (const Handle(OpenGl_Context)& ) const
{ {
// //
} }
// ======================================================================= // =======================================================================
@ -285,3 +226,12 @@ bool OpenGl_VertexBuffer::HasColorAttribute() const
{ {
return false; return false;
} }
// =======================================================================
// function : HasNormalAttribute
// purpose :
// =======================================================================
bool OpenGl_VertexBuffer::HasNormalAttribute() const
{
return false;
}

171
src/OpenGl/OpenGl_VertexBuffer.hxx
View File

@ -18,6 +18,7 @@
#include <OpenGl_GlCore20.hxx> #include <OpenGl_GlCore20.hxx>
#include <OpenGl_Resource.hxx> #include <OpenGl_Resource.hxx>
#include <OpenGl_Context.hxx> #include <OpenGl_Context.hxx>
#include <OpenGl_ShaderProgram.hxx>
#include <Graphic3d_IndexBuffer.hxx> #include <Graphic3d_IndexBuffer.hxx>
@ -65,18 +66,24 @@ public:
return myDataType; return myDataType;
} }
//! @return offset to data, NULL by default
inline GLubyte* GetDataOffset() const
{
return myOffset;
}
//! Creates VBO name (id) if not yet generated. //! Creates VBO name (id) if not yet generated.
//! Data should be initialized by another method. //! Data should be initialized by another method.
Standard_EXPORT bool Create (const Handle(OpenGl_Context)& theGlCtx); Standard_EXPORT virtual bool Create (const Handle(OpenGl_Context)& theGlCtx);
//! Destroy object - will release GPU memory if any. //! Destroy object - will release GPU memory if any.
Standard_EXPORT virtual void Release (OpenGl_Context* theGlCtx); Standard_EXPORT virtual void Release (OpenGl_Context* theGlCtx);
//! Bind this VBO. //! Bind this VBO.
Standard_EXPORT void Bind (const Handle(OpenGl_Context)& theGlCtx) const; Standard_EXPORT virtual void Bind (const Handle(OpenGl_Context)& theGlCtx) const;
//! Unbind this VBO. //! Unbind this VBO.
Standard_EXPORT void Unbind (const Handle(OpenGl_Context)& theGlCtx) const; Standard_EXPORT virtual void Unbind (const Handle(OpenGl_Context)& theGlCtx) const;
//! Notice that VBO will be unbound after this call. //! Notice that VBO will be unbound after this call.
//! @param theComponentsNb - specifies the number of components per generic vertex attribute; must be 1, 2, 3, or 4; //! @param theComponentsNb - specifies the number of components per generic vertex attribute; must be 1, 2, 3, or 4;
@ -190,17 +197,31 @@ public:
Standard_EXPORT void UnbindVertexAttrib (const Handle(OpenGl_Context)& theGlCtx, Standard_EXPORT void UnbindVertexAttrib (const Handle(OpenGl_Context)& theGlCtx,
const GLuint theAttribLoc) const; const GLuint theAttribLoc) const;
//! Bind this VBO as fixed pipeline attribute. //! Bind this VBO and enable specified attribute in OpenGl_Context::ActiveProgram() or FFP.
//! @param theGlCtx - handle to bound GL context; //! @param theGlCtx - handle to bound GL context;
//! @param theMode - array mode (GL_VERTEX_ARRAY, GL_NORMAL_ARRAY, GL_COLOR_ARRAY, GL_INDEX_ARRAY, GL_TEXTURE_COORD_ARRAY). //! @param theMode - array mode (GL_VERTEX_ARRAY, GL_NORMAL_ARRAY, GL_COLOR_ARRAY, GL_INDEX_ARRAY, GL_TEXTURE_COORD_ARRAY).
Standard_EXPORT void BindFixed (const Handle(OpenGl_Context)& theGlCtx, void BindAttribute (const Handle(OpenGl_Context)& theCtx,
const GLenum theMode) const; const Graphic3d_TypeOfAttribute theMode) const
{
if (IsValid())
{
Bind (theCtx);
bindAttribute (theCtx, theMode, static_cast<GLint> (myComponentsNb), myDataType, 0, myOffset);
}
}
//! Unbind this VBO as fixed pipeline attribute. //! Unbind this VBO and disable specified attribute in OpenGl_Context::ActiveProgram() or FFP.
//! @param theGlCtx - handle to bound GL context; //! @param theCtx handle to bound GL context
//! @param theMode - array mode. //! @param theMode array mode
Standard_EXPORT void UnbindFixed (const Handle(OpenGl_Context)& theGlCtx, void UnbindAttribute (const Handle(OpenGl_Context)& theCtx,
const GLenum theMode) const; const Graphic3d_TypeOfAttribute theMode) const
{
if (IsValid())
{
Unbind (theCtx);
unbindAttribute (theCtx, theMode);
}
}
public: //! @name advanced methods public: //! @name advanced methods
@ -222,12 +243,12 @@ public: //! @name advanced methods
} }
//! Initialize buffer with new data. //! Initialize buffer with new data.
Standard_EXPORT bool init (const Handle(OpenGl_Context)& theGlCtx, Standard_EXPORT virtual bool init (const Handle(OpenGl_Context)& theGlCtx,
const GLuint theComponentsNb, const GLuint theComponentsNb,
const GLsizei theElemsNb, const GLsizei theElemsNb,
const void* theData, const void* theData,
const GLenum theDataType, const GLenum theDataType,
const GLsizei theStride); const GLsizei theStride);
//! Initialize buffer with new data. //! Initialize buffer with new data.
bool init (const Handle(OpenGl_Context)& theGlCtx, bool init (const Handle(OpenGl_Context)& theGlCtx,
@ -240,11 +261,27 @@ public: //! @name advanced methods
} }
//! Update part of the buffer with new data. //! Update part of the buffer with new data.
Standard_EXPORT bool subData (const Handle(OpenGl_Context)& theGlCtx, Standard_EXPORT virtual bool subData (const Handle(OpenGl_Context)& theGlCtx,
const GLsizei theElemFrom, const GLsizei theElemFrom,
const GLsizei theElemsNb, const GLsizei theElemsNb,
const void* theData, const void* theData,
const GLenum theDataType); const GLenum theDataType);
//! Setup array pointer - either for active GLSL program OpenGl_Context::ActiveProgram()
//! or for FFP using bindFixed() when no program bound.
static void bindAttribute (const Handle(OpenGl_Context)& theGlCtx,
const Graphic3d_TypeOfAttribute theMode,
const GLint theNbComp,
const GLenum theDataType,
const GLsizei theStride,
const GLvoid* theOffset);
//! Disable GLSL array pointer - either for active GLSL program OpenGl_Context::ActiveProgram()
//! or for FFP using unbindFixed() when no program bound.
static void unbindAttribute (const Handle(OpenGl_Context)& theGlCtx,
const Graphic3d_TypeOfAttribute theMode);
private:
//! Setup FFP array pointer. //! Setup FFP array pointer.
static void bindFixed (const Handle(OpenGl_Context)& theGlCtx, static void bindFixed (const Handle(OpenGl_Context)& theGlCtx,
@ -252,85 +289,37 @@ public: //! @name advanced methods
const GLint theNbComp, const GLint theNbComp,
const GLenum theDataType, const GLenum theDataType,
const GLsizei theStride, const GLsizei theStride,
const GLvoid* theOffset) const GLvoid* theOffset);
{
switch (theMode)
{
case Graphic3d_TOA_POS:
{
theGlCtx->core11->glEnableClientState (GL_VERTEX_ARRAY);
theGlCtx->core11->glVertexPointer (theNbComp, theDataType, theStride, theOffset);
break;
}
case Graphic3d_TOA_NORM:
{
theGlCtx->core11->glEnableClientState (GL_NORMAL_ARRAY);
theGlCtx->core11->glNormalPointer (theDataType, theStride, theOffset);
break;
}
case Graphic3d_TOA_UV:
{
theGlCtx->core11->glEnableClientState (GL_TEXTURE_COORD_ARRAY);
theGlCtx->core11->glTexCoordPointer (theNbComp, theDataType, theStride, theOffset);
break;
}
case Graphic3d_TOA_COLOR:
{
theGlCtx->core11->glEnableClientState (GL_COLOR_ARRAY);
theGlCtx->core11->glColorPointer (theNbComp, theDataType, theStride, theOffset);
theGlCtx->core11->glColorMaterial (GL_FRONT_AND_BACK,GL_AMBIENT_AND_DIFFUSE);
theGlCtx->core11fwd->glEnable (GL_COLOR_MATERIAL);
break;
}
case Graphic3d_TOA_CUSTOM:
{
break;
}
}
}
//! Disable FFP array pointer. //! Disable FFP array pointer.
static void unbindFixed (const Handle(OpenGl_Context)& theGlCtx, static void unbindFixed (const Handle(OpenGl_Context)& theGlCtx,
const Graphic3d_TypeOfAttribute theMode) const Graphic3d_TypeOfAttribute theMode);
{
switch (theMode)
{
case Graphic3d_TOA_POS: theGlCtx->core11->glDisableClientState (GL_VERTEX_ARRAY); break;
case Graphic3d_TOA_NORM: theGlCtx->core11->glDisableClientState (GL_NORMAL_ARRAY); break;
case Graphic3d_TOA_UV: theGlCtx->core11->glDisableClientState (GL_TEXTURE_COORD_ARRAY); break;
case Graphic3d_TOA_COLOR:
{
theGlCtx->core11->glDisableClientState (GL_COLOR_ARRAY);
theGlCtx->core11fwd->glDisable (GL_COLOR_MATERIAL);
break;
}
case Graphic3d_TOA_CUSTOM:
{
break;
}
}
}
public: //! @name methods for interleaved attributes array public: //! @name methods for interleaved attributes array
//! Bind all vertex attributes. Default implementation does nothing.
Standard_EXPORT virtual void BindFixed (const Handle(OpenGl_Context)& theGlCtx) const;
//! Bind all vertex position attribute only. Default implementation does nothing.
Standard_EXPORT virtual void BindFixedPosition (const Handle(OpenGl_Context)& theGlCtx) const;
//! Unbind all vertex attributes. Default implementation does nothing.
Standard_EXPORT virtual void UnbindFixed (const Handle(OpenGl_Context)& theGlCtx) const;
//! @return true if buffer contains per-vertex color attribute //! @return true if buffer contains per-vertex color attribute
Standard_EXPORT virtual bool HasColorAttribute() const; Standard_EXPORT virtual bool HasColorAttribute() const;
//! @return true if buffer contains per-vertex normal attribute
Standard_EXPORT virtual bool HasNormalAttribute() const;
//! Bind all vertex attributes to active program OpenGl_Context::ActiveProgram() or for FFP.
//! Default implementation does nothing.
Standard_EXPORT virtual void BindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const;
//! Bind vertex position attribute only. Default implementation does nothing.
Standard_EXPORT virtual void BindPositionAttribute (const Handle(OpenGl_Context)& theGlCtx) const;
//! Unbind all vertex attributes. Default implementation does nothing.
Standard_EXPORT virtual void UnbindAllAttributes (const Handle(OpenGl_Context)& theGlCtx) const;
protected: protected:
GLuint myBufferId; //!< VBO name (index) GLubyte* myOffset; //!< offset to data
GLuint myComponentsNb; //!< Number of components per generic vertex attribute, must be 1, 2, 3, or 4 GLuint myBufferId; //!< VBO name (index)
GLsizei myElemsNb; //!< Number of vertex attributes / number of vertices GLuint myComponentsNb; //!< Number of components per generic vertex attribute, must be 1, 2, 3, or 4
GLenum myDataType; //!< Data type (GL_FLOAT, GL_UNSIGNED_INT, GL_UNSIGNED_BYTE etc.) GLsizei myElemsNb; //!< Number of vertex attributes / number of vertices
GLenum myDataType; //!< Data type (GL_FLOAT, GL_UNSIGNED_INT, GL_UNSIGNED_BYTE etc.)
public: public:
@ -340,4 +329,6 @@ public:
DEFINE_STANDARD_HANDLE(OpenGl_VertexBuffer, OpenGl_Resource) DEFINE_STANDARD_HANDLE(OpenGl_VertexBuffer, OpenGl_Resource)
#include <OpenGl_VertexBuffer.lxx>
#endif // _OpenGl_VertexBuffer_H__ #endif // _OpenGl_VertexBuffer_H__

121
src/OpenGl/OpenGl_VertexBuffer.lxx Normal file
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@ -0,0 +1,121 @@
// Created by: Kirill GAVRILOV
// Copyright (c) 2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
// =======================================================================
// function : bindAttribute
// purpose :
// =======================================================================
inline void OpenGl_VertexBuffer::bindAttribute (const Handle(OpenGl_Context)& theCtx,
const Graphic3d_TypeOfAttribute theAttribute,
const GLint theNbComp,
const GLenum theDataType,
const GLsizei theStride,
const GLvoid* theOffset)
{
if (theCtx->ActiveProgram().IsNull())
{
bindFixed (theCtx, theAttribute, theNbComp, theDataType, theStride, theOffset);
return;
}
theCtx->core20fwd->glEnableVertexAttribArray (theAttribute);
theCtx->core20fwd->glVertexAttribPointer (theAttribute, theNbComp, theDataType, GL_FALSE, theStride, theOffset);
}
// =======================================================================
// function : bindFixed
// purpose :
// =======================================================================
inline void OpenGl_VertexBuffer::bindFixed (const Handle(OpenGl_Context)& theCtx,
const Graphic3d_TypeOfAttribute theMode,
const GLint theNbComp,
const GLenum theDataType,
const GLsizei theStride,
const GLvoid* theOffset)
{
switch (theMode)
{
case Graphic3d_TOA_POS:
{
theCtx->core11->glEnableClientState (GL_VERTEX_ARRAY);
theCtx->core11->glVertexPointer (theNbComp, theDataType, theStride, theOffset);
return;
}
case Graphic3d_TOA_NORM:
{
theCtx->core11->glEnableClientState (GL_NORMAL_ARRAY);
theCtx->core11->glNormalPointer (theDataType, theStride, theOffset);
return;
}
case Graphic3d_TOA_UV:
{
theCtx->core11->glEnableClientState (GL_TEXTURE_COORD_ARRAY);
theCtx->core11->glTexCoordPointer (theNbComp, theDataType, theStride, theOffset);
return;
}
case Graphic3d_TOA_COLOR:
{
theCtx->core11->glEnableClientState (GL_COLOR_ARRAY);
theCtx->core11->glColorPointer (theNbComp, theDataType, theStride, theOffset);
theCtx->core11->glColorMaterial (GL_FRONT_AND_BACK,GL_AMBIENT_AND_DIFFUSE);
theCtx->core11fwd->glEnable (GL_COLOR_MATERIAL);
return;
}
case Graphic3d_TOA_CUSTOM:
{
return;
}
}
}
// =======================================================================
// function : unbindAttribute
// purpose :
// =======================================================================
inline void OpenGl_VertexBuffer::unbindAttribute (const Handle(OpenGl_Context)& theCtx,
const Graphic3d_TypeOfAttribute theAttribute)
{
if (theCtx->ActiveProgram().IsNull())
{
unbindFixed (theCtx, theAttribute);
return;
}
theCtx->core20fwd->glDisableVertexAttribArray (theAttribute);
}
// =======================================================================
// function : unbindAttribute
// purpose :
// =======================================================================
inline void OpenGl_VertexBuffer::unbindFixed (const Handle(OpenGl_Context)& theCtx,
const Graphic3d_TypeOfAttribute theMode)
{
switch (theMode)
{
case Graphic3d_TOA_POS: theCtx->core11->glDisableClientState (GL_VERTEX_ARRAY); return;
case Graphic3d_TOA_NORM: theCtx->core11->glDisableClientState (GL_NORMAL_ARRAY); return;
case Graphic3d_TOA_UV: theCtx->core11->glDisableClientState (GL_TEXTURE_COORD_ARRAY); return;
case Graphic3d_TOA_COLOR:
{
theCtx->core11->glDisableClientState (GL_COLOR_ARRAY);
theCtx->core11fwd->glDisable (GL_COLOR_MATERIAL);
return;
}
case Graphic3d_TOA_CUSTOM:
{
return;
}
}
}

225
src/OpenGl/OpenGl_VertexBufferCompat.cxx Normal file
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@ -0,0 +1,225 @@
// Created by: Kirill GAVRILOV
// Copyright (c) 2013-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <OpenGl_VertexBufferCompat.hxx>
#include <NCollection_AlignedAllocator.hxx>
IMPLEMENT_STANDARD_HANDLE (OpenGl_VertexBufferCompat, OpenGl_VertexBuffer)
IMPLEMENT_STANDARD_RTTIEXT(OpenGl_VertexBufferCompat, OpenGl_VertexBuffer)
// =======================================================================
// function : OpenGl_VertexBufferCompat
// purpose :
// =======================================================================
OpenGl_VertexBufferCompat::OpenGl_VertexBufferCompat()
{
//
}
// =======================================================================
// function : ~OpenGl_VertexBufferCompat
// purpose :
// =======================================================================
OpenGl_VertexBufferCompat::~OpenGl_VertexBufferCompat()
{
Release (NULL);
}
// =======================================================================
// function : Create
// purpose :
// =======================================================================
bool OpenGl_VertexBufferCompat::Create (const Handle(OpenGl_Context)& )
{
if (myBufferId == NO_BUFFER)
{
myBufferId = (GLuint )-1; // dummy identifier...
Handle(NCollection_AlignedAllocator) anAlloc = new NCollection_AlignedAllocator (16);
myData = new NCollection_Buffer (anAlloc);
}
return myBufferId != NO_BUFFER;
}
// =======================================================================
// function : Release
// purpose :
// =======================================================================
void OpenGl_VertexBufferCompat::Release (OpenGl_Context* )
{
if (myBufferId == NO_BUFFER)
{
return;
}
myOffset = NULL;
myBufferId = NO_BUFFER;
myData.Nullify();
}
// =======================================================================
// function : Bind
// purpose :
// =======================================================================
void OpenGl_VertexBufferCompat::Bind (const Handle(OpenGl_Context)& ) const
{
//
}
// =======================================================================
// function : Unbind
// purpose :
// =======================================================================
void OpenGl_VertexBufferCompat::Unbind (const Handle(OpenGl_Context)& ) const
{
//
}
//! Convert GL type to Graphic3d enumeration
static inline bool toGraphic3dDataType (const GLuint theNbComponents,
const GLenum theGlType,
Graphic3d_TypeOfData& theType)
{
switch (theGlType)
{
case GL_UNSIGNED_BYTE:
{
if (theNbComponents == 4)
{
theType = Graphic3d_TOD_VEC4UB;
return true;
}
return false;
}
case GL_UNSIGNED_SHORT:
{
if (theNbComponents == 1)
{
theType = Graphic3d_TOD_USHORT;
return true;
}
return false;
}
case GL_UNSIGNED_INT:
{
if (theNbComponents == 1)
{
theType = Graphic3d_TOD_UINT;
return true;
}
return false;
}
case GL_FLOAT:
{
switch (theNbComponents)
{
case 2: theType = Graphic3d_TOD_VEC2; return true;
case 3: theType = Graphic3d_TOD_VEC3; return true;
case 4: theType = Graphic3d_TOD_VEC4; return true;
}
return false;
}
}
return false;
}
// =======================================================================
// function : initLink
// purpose :
// =======================================================================
bool OpenGl_VertexBufferCompat::initLink (const Handle(NCollection_Buffer)& theData,
const GLuint theComponentsNb,
const GLsizei theElemsNb,
const GLenum theDataType)
{
if (theData.IsNull())
{
myOffset = NULL;
return false;
}
if (myBufferId == NO_BUFFER)
{
myBufferId = (GLuint )-1; // dummy identifier...
}
myData = theData;
myDataType = theDataType;
myComponentsNb = theComponentsNb;
myElemsNb = theElemsNb;
myOffset = myData->ChangeData();
return true;
}
// =======================================================================
// function : init
// purpose :
// =======================================================================
bool OpenGl_VertexBufferCompat::init (const Handle(OpenGl_Context)& theCtx,
const GLuint theComponentsNb,
const GLsizei theElemsNb,
const void* theData,
const GLenum theDataType,
const GLsizei theStride)
{
if (!Create (theCtx))
{
myOffset = NULL;
return false;
}
myDataType = theDataType;
myComponentsNb = theComponentsNb;
myElemsNb = theElemsNb;
const size_t aNbBytes = size_t(myElemsNb) * theStride;
if (!myData->Allocate (aNbBytes))
{
myOffset = NULL;
return false;
}
myOffset = myData->ChangeData();
if (theData != NULL)
{
memcpy (myData->ChangeData(), theData, aNbBytes);
}
return true;
}
// =======================================================================
// function : subData
// purpose :
// =======================================================================
bool OpenGl_VertexBufferCompat::subData (const Handle(OpenGl_Context)& ,
const GLsizei theElemFrom,
const GLsizei theElemsNb,
const void* theData,
const GLenum theDataType)
{
if (!IsValid() || myDataType != theDataType ||
theElemFrom < 0 || ((theElemFrom + theElemsNb) > myElemsNb))
{
return false;
}
else if (theData == NULL)
{
return true;
}
const size_t aDataSize = sizeOfGlType (theDataType);
const size_t anOffset = size_t(theElemFrom) * size_t(myComponentsNb) * aDataSize;
const size_t aNbBytes = size_t(theElemsNb) * size_t(myComponentsNb) * aDataSize;
memcpy (myData->ChangeData() + anOffset, theData, aNbBytes);
return true;
}

94
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@ -0,0 +1,94 @@
// Created by: Kirill GAVRILOV
// Copyright (c) 2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _OpenGl_VertexBufferCompat_HeaderFile
#define _OpenGl_VertexBufferCompat_HeaderFile
#include <OpenGl_VertexBuffer.hxx>
//! Compatibility layer for old OpenGL without VBO.
//! Make sure to pass pointer from GetDataOffset() instead of NULL.
//! Method GetDataOffset() returns pointer to real data in this class
//! (while base class OpenGl_VertexBuffer always return NULL).
//!
//! Methods Bind()/Unbind() do nothing (do not affect OpenGL state)
//! and ::GetTarget() is never used.
//! For this reason there is no analog for OpenGl_IndexBuffer.
//! Just pass GetDataOffset() to glDrawElements() directly as last argument.
//!
//! Class overrides methods init() and subData() to copy data into own memory buffer.
//! Extra method initLink() might be used to pass existing buffer through handle without copying the data.
//!
//! Method Create() creates dummy identifier for this object which should NOT be passed to OpenGL functions.
class OpenGl_VertexBufferCompat : public OpenGl_VertexBuffer
{
public:
//! Create uninitialized VBO.
Standard_EXPORT OpenGl_VertexBufferCompat();
//! Destroy object.
Standard_EXPORT virtual ~OpenGl_VertexBufferCompat();
//! Creates VBO name (id) if not yet generated.
//! Data should be initialized by another method.
Standard_EXPORT bool Create (const Handle(OpenGl_Context)& theGlCtx);
//! Destroy object - will release memory if any.
Standard_EXPORT virtual void Release (OpenGl_Context* theGlCtx) Standard_OVERRIDE;
//! Bind this VBO.
Standard_EXPORT virtual void Bind (const Handle(OpenGl_Context)& theGlCtx) const Standard_OVERRIDE;
//! Unbind this VBO.
Standard_EXPORT virtual void Unbind (const Handle(OpenGl_Context)& theGlCtx) const Standard_OVERRIDE;
public: //! @name advanced methods
//! Initialize buffer with existing data.
//! Data will NOT be copied by this method!
Standard_EXPORT bool initLink (const Handle(NCollection_Buffer)& theData,
const GLuint theComponentsNb,
const GLsizei theElemsNb,
const GLenum theDataType);
//! Initialize buffer with new data (data will be copied).
Standard_EXPORT virtual bool init (const Handle(OpenGl_Context)& theGlCtx,
const GLuint theComponentsNb,
const GLsizei theElemsNb,
const void* theData,
const GLenum theDataType,
const GLsizei theStride) Standard_OVERRIDE;
//! Update part of the buffer with new data.
Standard_EXPORT virtual bool subData (const Handle(OpenGl_Context)& theGlCtx,
const GLsizei theElemFrom,
const GLsizei theElemsNb,
const void* theData,
const GLenum theDataType) Standard_OVERRIDE;
protected:
Handle(NCollection_Buffer) myData; //!< buffer data
public:
DEFINE_STANDARD_RTTI(OpenGl_VertexBufferCompat) // Type definition
};
DEFINE_STANDARD_HANDLE(OpenGl_VertexBufferCompat, OpenGl_VertexBuffer)
#endif // _OpenGl_VertexBufferCompat_HeaderFile

2
src/OpenGl/OpenGl_View_2.cxx
View File

@ -600,7 +600,7 @@ void OpenGl_View::Render (const Handle(OpenGl_PrinterContext)& thePrintContext,
// We need to disable (unbind) all shaders programs to ensure // We need to disable (unbind) all shaders programs to ensure
// that all objects without specified aspect will be drawn // that all objects without specified aspect will be drawn
// correctly (such as background) // correctly (such as background)
OpenGl_ShaderProgram::Unbind (aContext); aContext->BindProgram (NULL);
} }
// Render trihedron // Render trihedron

44
src/OpenGl/OpenGl_Workspace_Raytrace.cxx
View File

@ -947,7 +947,7 @@ Standard_Boolean OpenGl_Workspace::UpdateRaytraceEnvironmentMap()
if (!aProgram.IsNull()) if (!aProgram.IsNull())
{ {
aProgram->Bind (myGlContext); myGlContext->BindProgram (aProgram);
if (!myView->TextureEnv().IsNull() && myView->SurfaceDetail() != Visual3d_TOD_NONE) if (!myView->TextureEnv().IsNull() && myView->SurfaceDetail() != Visual3d_TOD_NONE)
{ {
@ -965,10 +965,8 @@ Standard_Boolean OpenGl_Workspace::UpdateRaytraceEnvironmentMap()
} }
} }
OpenGl_ShaderProgram::Unbind (myGlContext); myGlContext->BindProgram (NULL);
myViewModificationStatus = myView->ModificationState(); myViewModificationStatus = myView->ModificationState();
return Standard_True; return Standard_True;
} }
@ -1192,6 +1190,8 @@ Standard_Boolean OpenGl_Workspace::InitRaytraceResources (const Graphic3d_CView&
return Standard_False; return Standard_False;
} }
myRaytraceProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex");
myPostFSAAProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex");
if (!myRaytraceProgram->Link (myGlContext) if (!myRaytraceProgram->Link (myGlContext)
|| !myPostFSAAProgram->Link (myGlContext)) || !myPostFSAAProgram->Link (myGlContext))
{ {
@ -1286,6 +1286,7 @@ Standard_Boolean OpenGl_Workspace::InitRaytraceResources (const Graphic3d_CView&
return SafeFailBack ("Failed to attach ray-trace shader objects"); return SafeFailBack ("Failed to attach ray-trace shader objects");
} }
myRaytraceProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex");
if (!myRaytraceProgram->Link (myGlContext)) if (!myRaytraceProgram->Link (myGlContext))
{ {
TCollection_AsciiString aLinkLog; TCollection_AsciiString aLinkLog;
@ -1342,6 +1343,7 @@ Standard_Boolean OpenGl_Workspace::InitRaytraceResources (const Graphic3d_CView&
return SafeFailBack ("Failed to attach FSAA shader objects"); return SafeFailBack ("Failed to attach FSAA shader objects");
} }
myPostFSAAProgram->SetAttributeName (myGlContext, Graphic3d_TOA_POS, "occVertex");
if (!myPostFSAAProgram->Link (myGlContext)) if (!myPostFSAAProgram->Link (myGlContext))
{ {
TCollection_AsciiString aLinkLog; TCollection_AsciiString aLinkLog;
@ -1365,7 +1367,7 @@ Standard_Boolean OpenGl_Workspace::InitRaytraceResources (const Graphic3d_CView&
Handle(OpenGl_ShaderProgram)& aShaderProgram = Handle(OpenGl_ShaderProgram)& aShaderProgram =
(anIndex == 0) ? myRaytraceProgram : myPostFSAAProgram; (anIndex == 0) ? myRaytraceProgram : myPostFSAAProgram;
aShaderProgram->Bind (myGlContext); myGlContext->BindProgram (aShaderProgram);
aShaderProgram->SetSampler (myGlContext, aShaderProgram->SetSampler (myGlContext,
"uSceneMinPointTexture", OpenGl_RT_SceneMinPointTexture); "uSceneMinPointTexture", OpenGl_RT_SceneMinPointTexture);
@ -1406,7 +1408,7 @@ Standard_Boolean OpenGl_Workspace::InitRaytraceResources (const Graphic3d_CView&
} }
myUniformLocations[anIndex][OpenGl_RT_aPosition] = myUniformLocations[anIndex][OpenGl_RT_aPosition] =
aShaderProgram->GetAttributeLocation (myGlContext, "aPosition"); aShaderProgram->GetAttributeLocation (myGlContext, "occVertex");
myUniformLocations[anIndex][OpenGl_RT_uOriginLB] = myUniformLocations[anIndex][OpenGl_RT_uOriginLB] =
aShaderProgram->GetUniformLocation (myGlContext, "uOriginLB"); aShaderProgram->GetUniformLocation (myGlContext, "uOriginLB");
@ -1453,7 +1455,7 @@ Standard_Boolean OpenGl_Workspace::InitRaytraceResources (const Graphic3d_CView&
aShaderProgram->GetUniformLocation (myGlContext, "uEnvironmentEnable"); aShaderProgram->GetUniformLocation (myGlContext, "uEnvironmentEnable");
} }
OpenGl_ShaderProgram::Unbind (myGlContext); myGlContext->BindProgram (NULL);
} }
if (myComputeInitStatus != OpenGl_RT_NONE) if (myComputeInitStatus != OpenGl_RT_NONE)
@ -1956,7 +1958,7 @@ Standard_Boolean OpenGl_Workspace::RunRaytraceShaders (const Graphic3d_CView& th
glDisable (GL_BLEND); glDisable (GL_BLEND);
} }
myRaytraceProgram->Bind (myGlContext); myGlContext->BindProgram (myRaytraceProgram);
Standard_Integer aLightSourceBufferSize = Standard_Integer aLightSourceBufferSize =
static_cast<Standard_Integer> (myRaytraceGeometry.Sources.size()); static_cast<Standard_Integer> (myRaytraceGeometry.Sources.size());
@ -1992,20 +1994,16 @@ Standard_Boolean OpenGl_Workspace::RunRaytraceShaders (const Graphic3d_CView& th
myRaytraceProgram->SetUniform (myGlContext, myRaytraceProgram->SetUniform (myGlContext,
myUniformLocations[0][OpenGl_RT_uReflEnabled], theCView.RenderParams.IsReflectionEnabled ? 1 : 0); myUniformLocations[0][OpenGl_RT_uReflEnabled], theCView.RenderParams.IsReflectionEnabled ? 1 : 0);
myGlContext->core20fwd->glEnableVertexAttribArray ( myGlContext->core20fwd->glEnableVertexAttribArray (Graphic3d_TOA_POS);
myUniformLocations[0][OpenGl_RT_aPosition]);
{ {
myGlContext->core20fwd->glVertexAttribPointer ( myGlContext->core20fwd->glVertexAttribPointer (Graphic3d_TOA_POS, 3, GL_FLOAT, GL_FALSE, 0, NULL);
myUniformLocations[0][OpenGl_RT_aPosition], 3, GL_FLOAT, GL_FALSE, 0, NULL);
myGlContext->core15fwd->glDrawArrays (GL_TRIANGLES, 0, 6); myGlContext->core15fwd->glDrawArrays (GL_TRIANGLES, 0, 6);
} }
myGlContext->core20fwd->glDisableVertexAttribArray ( myGlContext->core20fwd->glDisableVertexAttribArray (Graphic3d_TOA_POS);
myUniformLocations[0][OpenGl_RT_aPosition]);
if (!theCView.RenderParams.IsAntialiasingEnabled) if (!theCView.RenderParams.IsAntialiasingEnabled)
{ {
myRaytraceProgram->Unbind (myGlContext); myGlContext->BindProgram (NULL);
myOpenGlFBO->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture); myOpenGlFBO->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture);
myOpenGlFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture); myOpenGlFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture);
@ -2029,7 +2027,7 @@ Standard_Boolean OpenGl_Workspace::RunRaytraceShaders (const Graphic3d_CView& th
myRaytraceFBO1->ColorTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture); myRaytraceFBO1->ColorTexture()->Bind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture);
myPostFSAAProgram->Bind (myGlContext); myGlContext->BindProgram (myPostFSAAProgram);
myPostFSAAProgram->SetUniform (myGlContext, myPostFSAAProgram->SetUniform (myGlContext,
myUniformLocations[1][OpenGl_RT_uOriginLB], theOrigins[0]); myUniformLocations[1][OpenGl_RT_uOriginLB], theOrigins[0]);
@ -2065,11 +2063,8 @@ Standard_Boolean OpenGl_Workspace::RunRaytraceShaders (const Graphic3d_CView& th
const Standard_ShortReal aMaxOffset = 0.559017f; const Standard_ShortReal aMaxOffset = 0.559017f;
const Standard_ShortReal aMinOffset = 0.186339f; const Standard_ShortReal aMinOffset = 0.186339f;
myGlContext->core20fwd->glEnableVertexAttribArray ( myGlContext->core20fwd->glEnableVertexAttribArray (Graphic3d_TOA_POS);
myUniformLocations[1][OpenGl_RT_aPosition]); myGlContext->core20fwd->glVertexAttribPointer (Graphic3d_TOA_POS, 3, GL_FLOAT, GL_FALSE, 0, NULL);
myGlContext->core20fwd->glVertexAttribPointer (
myUniformLocations[1][OpenGl_RT_aPosition], 3, GL_FLOAT, GL_FALSE, 0, NULL);
// Perform multi-pass adaptive FSAA using ping-pong technique // Perform multi-pass adaptive FSAA using ping-pong technique
// rotated grid AA always uses 4 samples // rotated grid AA always uses 4 samples
@ -2119,10 +2114,9 @@ Standard_Boolean OpenGl_Workspace::RunRaytraceShaders (const Graphic3d_CView& th
} }
} }
myGlContext->core20fwd->glDisableVertexAttribArray ( myGlContext->core20fwd->glDisableVertexAttribArray (Graphic3d_TOA_POS);
myUniformLocations[1][OpenGl_RT_aPosition]);
myPostFSAAProgram->Unbind (myGlContext); myGlContext->BindProgram (NULL);
myRaytraceFBO1->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture); myRaytraceFBO1->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_FSAAInputTexture);
myOpenGlFBO->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture); myOpenGlFBO->ColorTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlColorTexture);
myOpenGlFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture); myOpenGlFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + OpenGl_RT_OpenGlDepthTexture);

8
src/Shaders/Declarations.glsl
View File

@ -23,10 +23,10 @@
// vertex attributes from compatibility profile. In the next // vertex attributes from compatibility profile. In the next
// release old functionality will be removed from shader API. // release old functionality will be removed from shader API.
#ifdef VERTEX_SHADER #ifdef VERTEX_SHADER
#define occColor gl_Color //!< Vertex color attribute vec4 occVertex;
#define occNormal gl_Normal //!< Normal coordinates attribute vec3 occNormal;
#define occVertex gl_Vertex //!< Vertex coordinates attribute vec4 occTexCoord;
#define occTexCoord gl_MultiTexCoord0 //!< Texture coordinates attribute vec4 occColor;
#endif #endif
// Matrix state // Matrix state

12
src/Shaders/RaytraceBase.vs
View File

@ -1,12 +1,12 @@
in vec4 aPosition; in vec4 occVertex;
//! Normalized pixel coordinates. //! Normalized pixel coordinates.
out vec2 vPixel; out vec2 vPixel;
void main (void) void main (void)
{ {
vPixel = vec2 ((aPosition.x + 1.f) * 0.5f, vPixel = vec2 ((occVertex.x + 1.f) * 0.5f,
(aPosition.y + 1.f) * 0.5f); (occVertex.y + 1.f) * 0.5f);
gl_Position = aPosition; gl_Position = occVertex;
} }