[occt.git] / src / OpenGl / OpenGl_FrameStatsPrs.cxx

// Copyright (c) 2017 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_FrameStatsPrs.hxx>

#include <OpenGl_View.hxx>
#include <OpenGl_ShaderManager.hxx>
#include <OpenGl_Workspace.hxx>

#include <Graphic3d_ArrayOfTriangles.hxx>

namespace
{
  //! Auxiliary structure defining vertex with two attributes.
  struct OpenGl_Vec3Vec4ub
  {
    Graphic3d_Vec3   Pos;
    Graphic3d_Vec4ub Color;
  };

  //! Auxiliary function formatting rendering time in " 10 ms (100 FPS)" format.
  static TCollection_AsciiString formatTimeMs (Standard_Real theSeconds)
  {
    const Standard_Real aFpsVal = theSeconds != 0.0 ? 1.0 / theSeconds : 0.0;
    char aFps[50];
    Sprintf (aFps, "%.1f", aFpsVal);
    return TCollection_AsciiString() + Standard_Integer(theSeconds * 1000.0) + " ms (" + aFps + " FPS)";
  }
}

// =======================================================================
// function : OpenGl_FrameStatsPrs
// purpose  :
// =======================================================================
OpenGl_FrameStatsPrs::OpenGl_FrameStatsPrs()
: myStatsPrev (new OpenGl_FrameStats()),
  myCountersTrsfPers (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_UPPER,  Graphic3d_Vec2i (20, 20))),
  myChartTrsfPers    (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_RIGHT_UPPER, Graphic3d_Vec2i (20, 20))),
  myChartVertices (new OpenGl_VertexBuffer()),
  myChartIndices (new OpenGl_IndexBuffer()),
  myChartLines (new OpenGl_VertexBuffer())
{
  //
}

// =======================================================================
// function : ~OpenGl_FrameStatsPrs
// purpose  :
// =======================================================================
OpenGl_FrameStatsPrs::~OpenGl_FrameStatsPrs()
{
  //
}

// =======================================================================
// function : Release
// purpose  :
// =======================================================================
void OpenGl_FrameStatsPrs::Release (OpenGl_Context* theCtx)
{
  myCountersText.Release (theCtx);
  myChartLabels[0].Release (theCtx);
  myChartLabels[1].Release (theCtx);
  myChartLabels[2].Release (theCtx);
  myChartVertices->Release (theCtx);
  myChartIndices->Release (theCtx);
  myChartLines->Release (theCtx);
}

// =======================================================================
// function : Update
// purpose  :
// =======================================================================
void OpenGl_FrameStatsPrs::Update (const Handle(OpenGl_Workspace)& theWorkspace)
{
  const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
  const Handle(OpenGl_FrameStats)& aStats = aCtx->FrameStats();
  const Graphic3d_RenderingParams& aRendParams = theWorkspace->View()->RenderingParams();
  myCountersTrsfPers = theWorkspace->View()->RenderingParams().StatsPosition;
  myChartTrsfPers    = theWorkspace->View()->RenderingParams().ChartPosition;
  myTextAspect.SetAspect (aRendParams.StatsTextAspect);

  // adjust text alignment depending on corner
  Graphic3d_Text aParams ((Standard_ShortReal)aRendParams.StatsTextHeight);
  aParams.SetHorizontalAlignment (Graphic3d_HTA_CENTER);
  aParams.SetVerticalAlignment (Graphic3d_VTA_CENTER);
  if (!myCountersTrsfPers.IsNull() && (myCountersTrsfPers->Corner2d() & Aspect_TOTP_LEFT) != 0)
  {
    aParams.SetHorizontalAlignment (Graphic3d_HTA_LEFT);
  }
  else if (!myCountersTrsfPers.IsNull() && (myCountersTrsfPers->Corner2d() & Aspect_TOTP_RIGHT) != 0)
  {
    aParams.SetHorizontalAlignment (Graphic3d_HTA_RIGHT);
  }
  if (!myCountersTrsfPers.IsNull() && (myCountersTrsfPers->Corner2d() & Aspect_TOTP_TOP) != 0)
  {
    aParams.SetVerticalAlignment (Graphic3d_VTA_TOP);
  }
  else if (!myCountersTrsfPers.IsNull() && (myCountersTrsfPers->Corner2d() & Aspect_TOTP_BOTTOM) != 0)
  {
    aParams.SetVerticalAlignment (Graphic3d_VTA_BOTTOM);
  }
  if (aParams.Height() != myCountersText.Text()->Height()
   || aParams.HorizontalAlignment() != myCountersText.Text()->HorizontalAlignment()
   || aParams.VerticalAlignment() != myCountersText.Text()->VerticalAlignment())
  {
    myCountersText.Release (aCtx.operator->());
  }

  if (!aStats->IsFrameUpdated (myStatsPrev)
   && !myCountersText.Text()->Text().IsEmpty())
  {
    return;
  }

  Handle(Graphic3d_Text) aText = myCountersText.Text();
  aText->SetText (aStats->FormatStats (aRendParams.CollectedStats).ToCString());
  aText->SetHeight (aParams.Height());
  aText->SetPosition (gp_Pnt());
  aText->SetHorizontalAlignment (aParams.HorizontalAlignment());
  aText->SetVerticalAlignment (aParams.VerticalAlignment());
  myCountersText.Reset (aCtx);

  updateChart (theWorkspace);
}

// =======================================================================
// function : updateChart
// purpose  :
// =======================================================================
void OpenGl_FrameStatsPrs::updateChart (const Handle(OpenGl_Workspace)& theWorkspace)
{
  const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
  const Handle(OpenGl_FrameStats)& aStats = aCtx->FrameStats();
  const Graphic3d_RenderingParams& aRendParams = theWorkspace->View()->RenderingParams();

  const Standard_Integer aNbBins = aStats->DataFrames().Size();
  if (aNbBins <= 1)
  {
    myChartIndices ->Release (aCtx.get());
    myChartVertices->Release (aCtx.get());
    myChartLines   ->Release (aCtx.get());
    return;
  }

  Standard_Real aMaxDuration = aRendParams.StatsMaxChartTime;
  if (aMaxDuration <= 0.0f)
  {
    for (Standard_Integer aFrameIter = aStats->DataFrames().Lower(); aFrameIter <= aStats->DataFrames().Upper(); ++aFrameIter)
    {
      const Graphic3d_FrameStatsData& aFrame = aStats->DataFrames().Value (aFrameIter);
      aMaxDuration = Max (aMaxDuration, aFrame.TimerValue (Graphic3d_FrameStatsTimer_ElapsedFrame));
    }
    aMaxDuration = Ceiling (aMaxDuration * 1000.0 * 0.1) * 0.001 * 10.0; // round number
    aMaxDuration = Max (Min (aMaxDuration, 0.1), 0.005); // limit by 100 ms (10 FPS) and 5 ms (200 FPS)
  }

  const Standard_Integer aNbTimers = 4;
  const Graphic3d_FrameStatsTimer aTimers[4] =
  {
    Graphic3d_FrameStatsTimer_CpuDynamics,
    Graphic3d_FrameStatsTimer_CpuPicking,
    Graphic3d_FrameStatsTimer_CpuCulling,
    Graphic3d_FrameStatsTimer_ElapsedFrame,
  };
  const Graphic3d_Vec4ub aColors[4] =
  {
    Graphic3d_Vec4ub (255, 0, 0, 127),
    Graphic3d_Vec4ub (255, 127, 39, 127),
    Graphic3d_Vec4ub (255, 0, 0, 127),
    Graphic3d_Vec4ub (0, 255, 0, 127),
  };

  const Standard_Integer aNbVerts   = aNbBins * 4 * aNbTimers;
  const Standard_Integer aNbIndexes = aNbBins * 2 * 3 * aNbTimers;
  bool toFillEdges = false;
  if (myChartArray.IsNull()
   || myChartArray->VertexNumber() != aNbVerts
   || myChartArray->EdgeNumber()   != aNbIndexes)
  {
    myChartArray = new Graphic3d_ArrayOfTriangles (aNbVerts, aNbIndexes, false, true);
    toFillEdges = true;
  }

  const Graphic3d_Vec2i aViewSize (aCtx->VirtualViewport()[2], aCtx->VirtualViewport()[3]);
  Graphic3d_Vec2i aCharSize (aRendParams.ChartSize);
  if (aCharSize.x() <= 0)
  {
    aCharSize.x() = aViewSize.x() / 2;
  }
  if (aCharSize.y() <= 0)
  {
    aCharSize.y() = Standard_Integer(0.15 * aViewSize.y());
  }

  const Graphic3d_Vec2d aBinSize  (Standard_Real(aCharSize.x()) / Standard_Real(aNbBins), 0.15 * aViewSize.y());
  Graphic3d_Vec2i anOffset;
  if (!myChartTrsfPers.IsNull()
    && myChartTrsfPers->IsTrihedronOr2d())
  {
    if ((myChartTrsfPers->Corner2d() & Aspect_TOTP_LEFT) != 0)
    {
      anOffset.x() = 0;
    }
    else if ((myChartTrsfPers->Corner2d() & Aspect_TOTP_RIGHT) != 0)
    {
      anOffset.x() = -aCharSize.x();
    }
    else
    {
      anOffset.x() = -aCharSize.x() / 2;
    }

    if ((myChartTrsfPers->Corner2d() & Aspect_TOTP_BOTTOM) != 0)
    {
      anOffset.y() = aCharSize.y();
    }
    else if ((myChartTrsfPers->Corner2d() & Aspect_TOTP_TOP) != 0)
    {
      anOffset.y() = 0;
    }
    else
    {
      anOffset.y() = aCharSize.y() / 2;
    }
  }

  Standard_Integer aVertLast = 1;
  const bool isTopDown = false;
  for (Standard_Integer aFrameIter = 0; aFrameIter < aNbBins; ++aFrameIter)
  {
    Standard_Integer aFrameIndex = aStats->DataFrames().Lower() + aStats->LastDataFrameIndex() + 1 + aFrameIter;
    if (aFrameIndex > aStats->DataFrames().Upper())
    {
      aFrameIndex -= aNbBins;
    }

    const Graphic3d_FrameStatsData& aFrame = aStats->DataFrames().Value (aFrameIndex);
    Standard_Real aTimeElapsed = 0.0;
    Standard_Real aCurrY = 0.0;
    for (Standard_Integer aTimerIter = 0; aTimerIter < aNbTimers; ++aTimerIter)
    {
      if (aTimers[aTimerIter] == Graphic3d_FrameStatsTimer_ElapsedFrame)
      {
        aTimeElapsed = aFrame.TimerValue (aTimers[aTimerIter]);
      }
      else
      {
        aTimeElapsed += aFrame.TimerValue (aTimers[aTimerIter]);
      }

      const Standard_Real aBinX1 = anOffset.x() + Standard_Real(aFrameIter) * aBinSize.x();
      const Standard_Real aBinX2 = aBinX1 + aBinSize.x();
      const Standard_Real aCurrSizeY = Min (aTimeElapsed / aMaxDuration, 1.2) * aBinSize.y();
      const Standard_Real aBinY1 = isTopDown ? (anOffset.y() - aCurrY)     : (anOffset.y() - aBinSize.y() + aCurrY);
      const Standard_Real aBinY2 = isTopDown ? (anOffset.y() - aCurrSizeY) : (anOffset.y() - aBinSize.y() + aCurrSizeY);
      myChartArray->SetVertice (aVertLast + 0, gp_Pnt (aBinX1, aBinY2, 0.0));
      myChartArray->SetVertice (aVertLast + 1, gp_Pnt (aBinX1, aBinY1, 0.0));
      myChartArray->SetVertice (aVertLast + 2, gp_Pnt (aBinX2, aBinY1, 0.0));
      myChartArray->SetVertice (aVertLast + 3, gp_Pnt (aBinX2, aBinY2, 0.0));

      if (toFillEdges)
      {
        const Graphic3d_Vec4ub& aTimerColor = aColors[aTimerIter];
        myChartArray->SetVertexColor (aVertLast + 0, aTimerColor);
        myChartArray->SetVertexColor (aVertLast + 1, aTimerColor);
        myChartArray->SetVertexColor (aVertLast + 2, aTimerColor);
        myChartArray->SetVertexColor (aVertLast + 3, aTimerColor);
        myChartArray->AddEdges (aVertLast + 0, aVertLast + 1, aVertLast + 3);
        myChartArray->AddEdges (aVertLast + 1, aVertLast + 2, aVertLast + 3);
      }
      aVertLast += 4;

      if (aTimers[aTimerIter] == Graphic3d_FrameStatsTimer_ElapsedFrame)
      {
        aTimeElapsed = 0.0;
        aCurrY = 0.0;
      }
      else
      {
        aCurrY = aCurrSizeY;
      }
    }
  }

  myChartVertices->init (aCtx,
                         myChartArray->Attributes()->Stride,
                         myChartArray->Attributes()->NbElements,
                         myChartArray->Attributes()->Data(),
                         GL_UNSIGNED_BYTE,
                         myChartArray->Attributes()->Stride);
  if (myChartArray->Indices()->Stride == 2)
  {
    myChartIndices ->Init (aCtx,
                           1,
                           myChartArray->Indices()->NbElements,
                           (const GLushort* )myChartArray->Indices()->Data());
  }
  else if (myChartArray->Indices()->Stride == 4)
  {
    myChartIndices ->Init (aCtx,
                           1,
                           myChartArray->Indices()->NbElements,
                           (const GLuint* )myChartArray->Indices()->Data());
  }

  {
    const Graphic3d_Vec4ub aWhite (255, 255, 255, 255);
    const OpenGl_Vec3Vec4ub aLines[4] =
    {
      { Graphic3d_Vec3((float )anOffset.x(), (float )anOffset.y(),                0.0f), aWhite },
      { Graphic3d_Vec3(float(anOffset.x() + aCharSize.x()), (float )anOffset.y(), 0.0f), aWhite },
      { Graphic3d_Vec3((float )anOffset.x(), float(anOffset.y() - aBinSize.y()),  0.0f), aWhite },
      { Graphic3d_Vec3(float(anOffset.x() + aCharSize.x()), float(anOffset.y() - aBinSize.y()),+ 0.0f), aWhite },
    };
    myChartLines->init (aCtx, sizeof(OpenGl_Vec3Vec4ub), 4, aLines, GL_UNSIGNED_BYTE, sizeof(OpenGl_Vec3Vec4ub));
  }

  {
    Graphic3d_Text aParams ((Standard_ShortReal)aRendParams.StatsTextHeight);
    aParams.SetHorizontalAlignment ((!myChartTrsfPers.IsNull()
                    && myChartTrsfPers->IsTrihedronOr2d()
                    && (myChartTrsfPers->Corner2d() & Aspect_TOTP_RIGHT) != 0)
                    ? Graphic3d_HTA_RIGHT
                    : Graphic3d_HTA_LEFT);
    aParams.SetVerticalAlignment (Graphic3d_VTA_CENTER);
    TCollection_AsciiString aLabels[3] =
    {
      TCollection_AsciiString() + 0 + " ms",
      formatTimeMs(aMaxDuration * 0.5),
      formatTimeMs(aMaxDuration)
    };

    const float aLabX = aParams.HorizontalAlignment() == Graphic3d_HTA_RIGHT
                      ? float(anOffset.x())
                      : float(anOffset.x() + aCharSize.x());

    myChartLabels[0].Text()->SetText (aLabels[isTopDown ? 0 : 2].ToCString());
    myChartLabels[0].Text()->SetPosition (gp_Pnt (aLabX, float(anOffset.y()), 0.0f));

    myChartLabels[1].Text()->SetText (aLabels[isTopDown ? 1 : 1].ToCString());
    myChartLabels[1].Text()->SetPosition (gp_Pnt (aLabX, float(anOffset.y() - aBinSize.y() / 2), 0.0f));

    myChartLabels[2].Text()->SetText (aLabels[isTopDown ? 2 : 0].ToCString());
    myChartLabels[2].Text()->SetPosition (gp_Pnt (aLabX, float(anOffset.y() - aBinSize.y()), 0.0f));

    for (int i = 0; i < 3; i++)
    {
      myChartLabels[i].Text()->SetHeight (aParams.Height());
      myChartLabels[i].Text()->SetHorizontalAlignment (aParams.HorizontalAlignment());
      myChartLabels[i].Text()->SetVerticalAlignment (aParams.VerticalAlignment());

      myChartLabels[i].Reset(aCtx);
    }
  }
}

// =======================================================================
// function : Render
// purpose  :
// =======================================================================
void OpenGl_FrameStatsPrs::Render (const Handle(OpenGl_Workspace)& theWorkspace) const
{
  const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
  const Standard_Boolean wasEnabledDepth = theWorkspace->UseDepthWrite();
  if (theWorkspace->UseDepthWrite())
  {
    theWorkspace->UseDepthWrite() = Standard_False;
    glDepthMask (GL_FALSE);
  }

  const OpenGl_Aspects* aTextAspectBack = theWorkspace->SetAspects (&myTextAspect);

  aCtx->ModelWorldState.Push();
  aCtx->ModelWorldState.ChangeCurrent().InitIdentity();

  // draw counters
  {
    aCtx->WorldViewState.Push();
    if (!myCountersTrsfPers.IsNull())
    {
      myCountersTrsfPers->Apply (theWorkspace->View()->Camera(),
                                 aCtx->ProjectionState.Current(), aCtx->WorldViewState.ChangeCurrent(),
                                 aCtx->VirtualViewport()[2], aCtx->VirtualViewport()[3]);
    }
    aCtx->ApplyModelViewMatrix();
    myCountersText.Render (theWorkspace);
    aCtx->WorldViewState.Pop();
  }

  // draw chart
  if (myChartIndices->IsValid()
   && myChartIndices->GetElemsNb() > 0)
  {
    aCtx->WorldViewState.Push();
    if (!myChartTrsfPers.IsNull())
    {
      myChartTrsfPers->Apply (theWorkspace->View()->Camera(),
                              aCtx->ProjectionState.Current(), aCtx->WorldViewState.ChangeCurrent(),
                              aCtx->VirtualViewport()[2], aCtx->VirtualViewport()[3]);
    }
    aCtx->ApplyModelViewMatrix();

    aCtx->ShaderManager()->BindFaceProgram (Handle(OpenGl_TextureSet)(), Graphic3d_TOSM_UNLIT,
                                            Graphic3d_AlphaMode_Blend, true, false,
                                            Handle(OpenGl_ShaderProgram)());
    aCtx->SetColor4fv (OpenGl_Vec4 (1.0f, 1.0f, 1.0f, 1.0f));
    glEnable (GL_BLEND);
    glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    myChartVertices->Bind (aCtx);
    myChartVertices->bindAttribute (aCtx, Graphic3d_TOA_POS,   3, GL_FLOAT,         myChartVertices->GetComponentsNb(), NULL);
    myChartVertices->bindAttribute (aCtx, Graphic3d_TOA_COLOR, 4, GL_UNSIGNED_BYTE, myChartVertices->GetComponentsNb(), (void* )sizeof(Graphic3d_Vec3));

    myChartIndices->Bind (aCtx);
    aCtx->core15fwd->glDrawElements (GL_TRIANGLES, myChartIndices->GetElemsNb(), myChartIndices->GetDataType(), NULL);
    myChartIndices->Unbind (aCtx);
    myChartVertices->Unbind (aCtx);
    myChartVertices->unbindAttribute (aCtx, Graphic3d_TOA_COLOR);
    myChartVertices->unbindAttribute (aCtx, Graphic3d_TOA_POS);
    glDisable (GL_BLEND);

    myChartLines->Bind (aCtx);
    myChartLines->bindAttribute (aCtx, Graphic3d_TOA_POS,   3, GL_FLOAT,         myChartLines->GetComponentsNb(), NULL);
    myChartLines->bindAttribute (aCtx, Graphic3d_TOA_COLOR, 4, GL_UNSIGNED_BYTE, myChartLines->GetComponentsNb(), (void* )sizeof(Graphic3d_Vec3));
    aCtx->core15fwd->glDrawArrays (GL_LINES, 0, myChartLines->GetElemsNb());
    myChartLines->Unbind (aCtx);
    myChartLines->unbindAttribute (aCtx, Graphic3d_TOA_COLOR);
    myChartLines->unbindAttribute (aCtx, Graphic3d_TOA_POS);

    myChartLabels[0].Render (theWorkspace);
    myChartLabels[1].Render (theWorkspace);
    myChartLabels[2].Render (theWorkspace);

    aCtx->WorldViewState.Pop();
  }

  aCtx->ModelWorldState.Pop();
  aCtx->ApplyWorldViewMatrix();

  theWorkspace->SetAspects (aTextAspectBack);
  if (theWorkspace->UseDepthWrite() != wasEnabledDepth)
  {
    theWorkspace->UseDepthWrite() = wasEnabledDepth;
    glDepthMask (wasEnabledDepth ? GL_TRUE : GL_FALSE);
  }
}

// =======================================================================
// function : DumpJson
// purpose  :
// =======================================================================
void OpenGl_FrameStatsPrs::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const
{
  OCCT_DUMP_CLASS_BEGIN (theOStream, OpenGl_FrameStatsPrs)

  OCCT_DUMP_BASE_CLASS (theOStream, theDepth, OpenGl_Element)
}
Commit	Line	Data
15669413	1	// Copyright (c) 2017 OPEN CASCADE SAS
	2	//
	3	// This file is part of Open CASCADE Technology software library.
	4	//
	5	// This library is free software; you can redistribute it and/or modify it under
	6	// the terms of the GNU Lesser General Public License version 2.1 as published
	7	// by the Free Software Foundation, with special exception defined in the file
	8	// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
	9	// distribution for complete text of the license and disclaimer of any warranty.
	10	//
	11	// Alternatively, this file may be used under the terms of Open CASCADE
	12	// commercial license or contractual agreement.
	13
	14	#include <OpenGl_FrameStatsPrs.hxx>
	15
	16	#include <OpenGl_View.hxx>
	17	#include <OpenGl_ShaderManager.hxx>
	18	#include <OpenGl_Workspace.hxx>
	19
5e30547b	20	#include <Graphic3d_ArrayOfTriangles.hxx>
	21
	22	namespace
	23	{
	24	//! Auxiliary structure defining vertex with two attributes.
	25	struct OpenGl_Vec3Vec4ub
	26	{
	27	Graphic3d_Vec3 Pos;
	28	Graphic3d_Vec4ub Color;
	29	};
	30
	31	//! Auxiliary function formatting rendering time in " 10 ms (100 FPS)" format.
	32	static TCollection_AsciiString formatTimeMs (Standard_Real theSeconds)
	33	{
	34	const Standard_Real aFpsVal = theSeconds != 0.0 ? 1.0 / theSeconds : 0.0;
	35	char aFps[50];
	36	Sprintf (aFps, "%.1f", aFpsVal);
	37	return TCollection_AsciiString() + Standard_Integer(theSeconds * 1000.0) + " ms (" + aFps + " FPS)";
	38	}
	39	}
	40
15669413	41	// =======================================================================
	42	// function : OpenGl_FrameStatsPrs
	43	// purpose :
	44	// =======================================================================
	45	OpenGl_FrameStatsPrs::OpenGl_FrameStatsPrs()
5e30547b	46	: myStatsPrev (new OpenGl_FrameStats()),
	47	myCountersTrsfPers (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_LEFT_UPPER, Graphic3d_Vec2i (20, 20))),
	48	myChartTrsfPers (new Graphic3d_TransformPers (Graphic3d_TMF_2d, Aspect_TOTP_RIGHT_UPPER, Graphic3d_Vec2i (20, 20))),
	49	myChartVertices (new OpenGl_VertexBuffer()),
	50	myChartIndices (new OpenGl_IndexBuffer()),
	51	myChartLines (new OpenGl_VertexBuffer())
15669413	52	{
5e30547b	53	//
15669413	54	}
	55
	56	// =======================================================================
	57	// function : ~OpenGl_FrameStatsPrs
	58	// purpose :
	59	// =======================================================================
	60	OpenGl_FrameStatsPrs::~OpenGl_FrameStatsPrs()
	61	{
	62	//
	63	}
	64
	65	// =======================================================================
	66	// function : Release
	67	// purpose :
	68	// =======================================================================
	69	void OpenGl_FrameStatsPrs::Release (OpenGl_Context* theCtx)
	70	{
5e30547b	71	myCountersText.Release (theCtx);
	72	myChartLabels[0].Release (theCtx);
	73	myChartLabels[1].Release (theCtx);
	74	myChartLabels[2].Release (theCtx);
	75	myChartVertices->Release (theCtx);
	76	myChartIndices->Release (theCtx);
	77	myChartLines->Release (theCtx);
15669413	78	}
	79
	80	// =======================================================================
	81	// function : Update
	82	// purpose :
	83	// =======================================================================
	84	void OpenGl_FrameStatsPrs::Update (const Handle(OpenGl_Workspace)& theWorkspace)
	85	{
	86	const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
	87	const Handle(OpenGl_FrameStats)& aStats = aCtx->FrameStats();
	88	const Graphic3d_RenderingParams& aRendParams = theWorkspace->View()->RenderingParams();
5e30547b	89	myCountersTrsfPers = theWorkspace->View()->RenderingParams().StatsPosition;
5e30547b	90	myChartTrsfPers = theWorkspace->View()->RenderingParams().ChartPosition;
15669413	91	myTextAspect.SetAspect (aRendParams.StatsTextAspect);
	92
	93	// adjust text alignment depending on corner
8ed07085	94	Graphic3d_Text aParams ((Standard_ShortReal)aRendParams.StatsTextHeight);
	95	aParams.SetHorizontalAlignment (Graphic3d_HTA_CENTER);
	96	aParams.SetVerticalAlignment (Graphic3d_VTA_CENTER);
5e30547b	97	if (!myCountersTrsfPers.IsNull() && (myCountersTrsfPers->Corner2d() & Aspect_TOTP_LEFT) != 0)
15669413	98	{
8ed07085	99	aParams.SetHorizontalAlignment (Graphic3d_HTA_LEFT);
15669413	100	}
5e30547b	101	else if (!myCountersTrsfPers.IsNull() && (myCountersTrsfPers->Corner2d() & Aspect_TOTP_RIGHT) != 0)
15669413	102	{
8ed07085	103	aParams.SetHorizontalAlignment (Graphic3d_HTA_RIGHT);
15669413	104	}
5e30547b	105	if (!myCountersTrsfPers.IsNull() && (myCountersTrsfPers->Corner2d() & Aspect_TOTP_TOP) != 0)
15669413	106	{
8ed07085	107	aParams.SetVerticalAlignment (Graphic3d_VTA_TOP);
15669413	108	}
5e30547b	109	else if (!myCountersTrsfPers.IsNull() && (myCountersTrsfPers->Corner2d() & Aspect_TOTP_BOTTOM) != 0)
15669413	110	{
8ed07085	111	aParams.SetVerticalAlignment (Graphic3d_VTA_BOTTOM);
15669413	112	}
8ed07085	113	if (aParams.Height() != myCountersText.Text()->Height()
	114	\|\| aParams.HorizontalAlignment() != myCountersText.Text()->HorizontalAlignment()
	115	\|\| aParams.VerticalAlignment() != myCountersText.Text()->VerticalAlignment())
15669413	116	{
5e30547b	117	myCountersText.Release (aCtx.operator->());
15669413	118	}
15669413	119
5e30547b	120	if (!aStats->IsFrameUpdated (myStatsPrev)
8ed07085	121	&& !myCountersText.Text()->Text().IsEmpty())
15669413	122	{
	123	return;
	124	}
	125
8ed07085	126	Handle(Graphic3d_Text) aText = myCountersText.Text();
	127	aText->SetText (aStats->FormatStats (aRendParams.CollectedStats).ToCString());
	128	aText->SetHeight (aParams.Height());
	129	aText->SetPosition (gp_Pnt());
	130	aText->SetHorizontalAlignment (aParams.HorizontalAlignment());
	131	aText->SetVerticalAlignment (aParams.VerticalAlignment());
	132	myCountersText.Reset (aCtx);
5e30547b	133
	134	updateChart (theWorkspace);
	135	}
	136
	137	// =======================================================================
	138	// function : updateChart
	139	// purpose :
	140	// =======================================================================
	141	void OpenGl_FrameStatsPrs::updateChart (const Handle(OpenGl_Workspace)& theWorkspace)
	142	{
	143	const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
	144	const Handle(OpenGl_FrameStats)& aStats = aCtx->FrameStats();
	145	const Graphic3d_RenderingParams& aRendParams = theWorkspace->View()->RenderingParams();
	146
	147	const Standard_Integer aNbBins = aStats->DataFrames().Size();
	148	if (aNbBins <= 1)
	149	{
dc2749cf	150	myChartIndices ->Release (aCtx.get());
	151	myChartVertices->Release (aCtx.get());
	152	myChartLines ->Release (aCtx.get());
5e30547b	153	return;
	154	}
	155
	156	Standard_Real aMaxDuration = aRendParams.StatsMaxChartTime;
	157	if (aMaxDuration <= 0.0f)
	158	{
	159	for (Standard_Integer aFrameIter = aStats->DataFrames().Lower(); aFrameIter <= aStats->DataFrames().Upper(); ++aFrameIter)
	160	{
	161	const Graphic3d_FrameStatsData& aFrame = aStats->DataFrames().Value (aFrameIter);
	162	aMaxDuration = Max (aMaxDuration, aFrame.TimerValue (Graphic3d_FrameStatsTimer_ElapsedFrame));
	163	}
	164	aMaxDuration = Ceiling (aMaxDuration * 1000.0 * 0.1) * 0.001 * 10.0; // round number
	165	aMaxDuration = Max (Min (aMaxDuration, 0.1), 0.005); // limit by 100 ms (10 FPS) and 5 ms (200 FPS)
	166	}
	167
	168	const Standard_Integer aNbTimers = 4;
	169	const Graphic3d_FrameStatsTimer aTimers[4] =
	170	{
	171	Graphic3d_FrameStatsTimer_CpuDynamics,
	172	Graphic3d_FrameStatsTimer_CpuPicking,
	173	Graphic3d_FrameStatsTimer_CpuCulling,
	174	Graphic3d_FrameStatsTimer_ElapsedFrame,
	175	};
	176	const Graphic3d_Vec4ub aColors[4] =
	177	{
	178	Graphic3d_Vec4ub (255, 0, 0, 127),
	179	Graphic3d_Vec4ub (255, 127, 39, 127),
	180	Graphic3d_Vec4ub (255, 0, 0, 127),
	181	Graphic3d_Vec4ub (0, 255, 0, 127),
	182	};
	183
	184	const Standard_Integer aNbVerts = aNbBins * 4 * aNbTimers;
	185	const Standard_Integer aNbIndexes = aNbBins * 2 * 3 * aNbTimers;
	186	bool toFillEdges = false;
	187	if (myChartArray.IsNull()
	188	\|\| myChartArray->VertexNumber() != aNbVerts
	189	\|\| myChartArray->EdgeNumber() != aNbIndexes)
	190	{
	191	myChartArray = new Graphic3d_ArrayOfTriangles (aNbVerts, aNbIndexes, false, true);
	192	toFillEdges = true;
	193	}
	194
	195	const Graphic3d_Vec2i aViewSize (aCtx->VirtualViewport()[2], aCtx->VirtualViewport()[3]);
	196	Graphic3d_Vec2i aCharSize (aRendParams.ChartSize);
	197	if (aCharSize.x() <= 0)
	198	{
	199	aCharSize.x() = aViewSize.x() / 2;
	200	}
	201	if (aCharSize.y() <= 0)
	202	{
	203	aCharSize.y() = Standard_Integer(0.15 * aViewSize.y());
	204	}
	205
	206	const Graphic3d_Vec2d aBinSize (Standard_Real(aCharSize.x()) / Standard_Real(aNbBins), 0.15 * aViewSize.y());
	207	Graphic3d_Vec2i anOffset;
	208	if (!myChartTrsfPers.IsNull()
	209	&& myChartTrsfPers->IsTrihedronOr2d())
	210	{
	211	if ((myChartTrsfPers->Corner2d() & Aspect_TOTP_LEFT) != 0)
	212	{
	213	anOffset.x() = 0;
	214	}
	215	else if ((myChartTrsfPers->Corner2d() & Aspect_TOTP_RIGHT) != 0)
	216	{
217	anOffset.x() = -aCharSize.x();
218	}
219	else
220	{
221	anOffset.x() = -aCharSize.x() / 2;
222	}
223
224	if ((myChartTrsfPers->Corner2d() & Aspect_TOTP_BOTTOM) != 0)
225	{
226	anOffset.y() = aCharSize.y();
227	}
228	else if ((myChartTrsfPers->Corner2d() & Aspect_TOTP_TOP) != 0)
229	{
230	anOffset.y() = 0;
231	}
232	else
233	{
234	anOffset.y() = aCharSize.y() / 2;
235	}
236	}
237
238	Standard_Integer aVertLast = 1;
239	const bool isTopDown = false;
240	for (Standard_Integer aFrameIter = 0; aFrameIter < aNbBins; ++aFrameIter)
241	{
242	Standard_Integer aFrameIndex = aStats->DataFrames().Lower() + aStats->LastDataFrameIndex() + 1 + aFrameIter;
243	if (aFrameIndex > aStats->DataFrames().Upper())
244	{
245	aFrameIndex -= aNbBins;
246	}
247
248	const Graphic3d_FrameStatsData& aFrame = aStats->DataFrames().Value (aFrameIndex);
249	Standard_Real aTimeElapsed = 0.0;
250	Standard_Real aCurrY = 0.0;
251	for (Standard_Integer aTimerIter = 0; aTimerIter < aNbTimers; ++aTimerIter)
252	{
253	if (aTimers[aTimerIter] == Graphic3d_FrameStatsTimer_ElapsedFrame)
254	{
255	aTimeElapsed = aFrame.TimerValue (aTimers[aTimerIter]);
256	}
257	else
258	{
259	aTimeElapsed += aFrame.TimerValue (aTimers[aTimerIter]);
260	}
261
262	const Standard_Real aBinX1 = anOffset.x() + Standard_Real(aFrameIter) * aBinSize.x();
263	const Standard_Real aBinX2 = aBinX1 + aBinSize.x();
264	const Standard_Real aCurrSizeY = Min (aTimeElapsed / aMaxDuration, 1.2) * aBinSize.y();
265	const Standard_Real aBinY1 = isTopDown ? (anOffset.y() - aCurrY) : (anOffset.y() - aBinSize.y() + aCurrY);
266	const Standard_Real aBinY2 = isTopDown ? (anOffset.y() - aCurrSizeY) : (anOffset.y() - aBinSize.y() + aCurrSizeY);
267	myChartArray->SetVertice (aVertLast + 0, gp_Pnt (aBinX1, aBinY2, 0.0));
268	myChartArray->SetVertice (aVertLast + 1, gp_Pnt (aBinX1, aBinY1, 0.0));
269	myChartArray->SetVertice (aVertLast + 2, gp_Pnt (aBinX2, aBinY1, 0.0));
270	myChartArray->SetVertice (aVertLast + 3, gp_Pnt (aBinX2, aBinY2, 0.0));
271
272	if (toFillEdges)
273	{
274	const Graphic3d_Vec4ub& aTimerColor = aColors[aTimerIter];
275	myChartArray->SetVertexColor (aVertLast + 0, aTimerColor);
276	myChartArray->SetVertexColor (aVertLast + 1, aTimerColor);
277	myChartArray->SetVertexColor (aVertLast + 2, aTimerColor);
278	myChartArray->SetVertexColor (aVertLast + 3, aTimerColor);
279	myChartArray->AddEdges (aVertLast + 0, aVertLast + 1, aVertLast + 3);
280	myChartArray->AddEdges (aVertLast + 1, aVertLast + 2, aVertLast + 3);
281	}
282	aVertLast += 4;
283
284	if (aTimers[aTimerIter] == Graphic3d_FrameStatsTimer_ElapsedFrame)
285	{
286	aTimeElapsed = 0.0;
287	aCurrY = 0.0;
288	}
289	else
290	{
291	aCurrY = aCurrSizeY;
292	}
293	}
294	}
295
296	myChartVertices->init (aCtx,
297	myChartArray->Attributes()->Stride,
298	myChartArray->Attributes()->NbElements,
299	myChartArray->Attributes()->Data(),
300	GL_UNSIGNED_BYTE,
301	myChartArray->Attributes()->Stride);
302	if (myChartArray->Indices()->Stride == 2)
303	{
304	myChartIndices ->Init (aCtx,
305	1,
306	myChartArray->Indices()->NbElements,
307	(const GLushort* )myChartArray->Indices()->Data());
308	}
309	else if (myChartArray->Indices()->Stride == 4)
310	{
311	myChartIndices ->Init (aCtx,
312	1,
313	myChartArray->Indices()->NbElements,
314	(const GLuint* )myChartArray->Indices()->Data());
315	}
15669413	316
5e30547b	317	{
	318	const Graphic3d_Vec4ub aWhite (255, 255, 255, 255);
	319	const OpenGl_Vec3Vec4ub aLines[4] =
	320	{
	321	{ Graphic3d_Vec3((float )anOffset.x(), (float )anOffset.y(), 0.0f), aWhite },
	322	{ Graphic3d_Vec3(float(anOffset.x() + aCharSize.x()), (float )anOffset.y(), 0.0f), aWhite },
	323	{ Graphic3d_Vec3((float )anOffset.x(), float(anOffset.y() - aBinSize.y()), 0.0f), aWhite },
	324	{ Graphic3d_Vec3(float(anOffset.x() + aCharSize.x()), float(anOffset.y() - aBinSize.y()),+ 0.0f), aWhite },
	325	};
	326	myChartLines->init (aCtx, sizeof(OpenGl_Vec3Vec4ub), 4, aLines, GL_UNSIGNED_BYTE, sizeof(OpenGl_Vec3Vec4ub));
	327	}
	328
	329	{
8ed07085	330	Graphic3d_Text aParams ((Standard_ShortReal)aRendParams.StatsTextHeight);
8ed07085	331	aParams.SetHorizontalAlignment ((!myChartTrsfPers.IsNull()
5e30547b	332	&& myChartTrsfPers->IsTrihedronOr2d()
	333	&& (myChartTrsfPers->Corner2d() & Aspect_TOTP_RIGHT) != 0)
	334	? Graphic3d_HTA_RIGHT
8ed07085	335	: Graphic3d_HTA_LEFT);
8ed07085	336	aParams.SetVerticalAlignment (Graphic3d_VTA_CENTER);
5e30547b	337	TCollection_AsciiString aLabels[3] =
	338	{
	339	TCollection_AsciiString() + 0 + " ms",
	340	formatTimeMs(aMaxDuration * 0.5),
	341	formatTimeMs(aMaxDuration)
	342	};
	343
8ed07085	344	const float aLabX = aParams.HorizontalAlignment() == Graphic3d_HTA_RIGHT
5e30547b	345	? float(anOffset.x())
5e30547b	346	: float(anOffset.x() + aCharSize.x());
8ed07085	347
	348	myChartLabels[0].Text()->SetText (aLabels[isTopDown ? 0 : 2].ToCString());
	349	myChartLabels[0].Text()->SetPosition (gp_Pnt (aLabX, float(anOffset.y()), 0.0f));
	350
	351	myChartLabels[1].Text()->SetText (aLabels[isTopDown ? 1 : 1].ToCString());
	352	myChartLabels[1].Text()->SetPosition (gp_Pnt (aLabX, float(anOffset.y() - aBinSize.y() / 2), 0.0f));
	353
	354	myChartLabels[2].Text()->SetText (aLabels[isTopDown ? 2 : 0].ToCString());
	355	myChartLabels[2].Text()->SetPosition (gp_Pnt (aLabX, float(anOffset.y() - aBinSize.y()), 0.0f));
	356
	357	for (int i = 0; i < 3; i++)
	358	{
	359	myChartLabels[i].Text()->SetHeight (aParams.Height());
	360	myChartLabels[i].Text()->SetHorizontalAlignment (aParams.HorizontalAlignment());
	361	myChartLabels[i].Text()->SetVerticalAlignment (aParams.VerticalAlignment());
	362
	363	myChartLabels[i].Reset(aCtx);
	364	}
5e30547b	365	}
15669413	366	}
	367
	368	// =======================================================================
	369	// function : Render
	370	// purpose :
	371	// =======================================================================
	372	void OpenGl_FrameStatsPrs::Render (const Handle(OpenGl_Workspace)& theWorkspace) const
	373	{
	374	const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
	375	const Standard_Boolean wasEnabledDepth = theWorkspace->UseDepthWrite();
	376	if (theWorkspace->UseDepthWrite())
	377	{
	378	theWorkspace->UseDepthWrite() = Standard_False;
	379	glDepthMask (GL_FALSE);
	380	}
	381
bf5f0ca2	382	const OpenGl_Aspects* aTextAspectBack = theWorkspace->SetAspects (&myTextAspect);
5e30547b	383
15669413	384	aCtx->ModelWorldState.Push();
	385	aCtx->ModelWorldState.ChangeCurrent().InitIdentity();
	386
5e30547b	387	// draw counters
15669413	388	{
5e30547b	389	aCtx->WorldViewState.Push();
	390	if (!myCountersTrsfPers.IsNull())
	391	{
	392	myCountersTrsfPers->Apply (theWorkspace->View()->Camera(),
	393	aCtx->ProjectionState.Current(), aCtx->WorldViewState.ChangeCurrent(),
	394	aCtx->VirtualViewport()[2], aCtx->VirtualViewport()[3]);
	395	}
	396	aCtx->ApplyModelViewMatrix();
	397	myCountersText.Render (theWorkspace);
	398	aCtx->WorldViewState.Pop();
15669413	399	}
15669413	400
5e30547b	401	// draw chart
	402	if (myChartIndices->IsValid()
	403	&& myChartIndices->GetElemsNb() > 0)
	404	{
	405	aCtx->WorldViewState.Push();
	406	if (!myChartTrsfPers.IsNull())
	407	{
	408	myChartTrsfPers->Apply (theWorkspace->View()->Camera(),
	409	aCtx->ProjectionState.Current(), aCtx->WorldViewState.ChangeCurrent(),
	410	aCtx->VirtualViewport()[2], aCtx->VirtualViewport()[3]);
	411	}
	412	aCtx->ApplyModelViewMatrix();
15669413	413
5e30547b	414	aCtx->ShaderManager()->BindFaceProgram (Handle(OpenGl_TextureSet)(), Graphic3d_TOSM_UNLIT,
	415	Graphic3d_AlphaMode_Blend, true, false,
	416	Handle(OpenGl_ShaderProgram)());
	417	aCtx->SetColor4fv (OpenGl_Vec4 (1.0f, 1.0f, 1.0f, 1.0f));
	418	glEnable (GL_BLEND);
	419	glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	420	myChartVertices->Bind (aCtx);
	421	myChartVertices->bindAttribute (aCtx, Graphic3d_TOA_POS, 3, GL_FLOAT, myChartVertices->GetComponentsNb(), NULL);
	422	myChartVertices->bindAttribute (aCtx, Graphic3d_TOA_COLOR, 4, GL_UNSIGNED_BYTE, myChartVertices->GetComponentsNb(), (void* )sizeof(Graphic3d_Vec3));
	423
	424	myChartIndices->Bind (aCtx);
	425	aCtx->core15fwd->glDrawElements (GL_TRIANGLES, myChartIndices->GetElemsNb(), myChartIndices->GetDataType(), NULL);
	426	myChartIndices->Unbind (aCtx);
	427	myChartVertices->Unbind (aCtx);
	428	myChartVertices->unbindAttribute (aCtx, Graphic3d_TOA_COLOR);
	429	myChartVertices->unbindAttribute (aCtx, Graphic3d_TOA_POS);
	430	glDisable (GL_BLEND);
	431
	432	myChartLines->Bind (aCtx);
	433	myChartLines->bindAttribute (aCtx, Graphic3d_TOA_POS, 3, GL_FLOAT, myChartLines->GetComponentsNb(), NULL);
	434	myChartLines->bindAttribute (aCtx, Graphic3d_TOA_COLOR, 4, GL_UNSIGNED_BYTE, myChartLines->GetComponentsNb(), (void* )sizeof(Graphic3d_Vec3));
	435	aCtx->core15fwd->glDrawArrays (GL_LINES, 0, myChartLines->GetElemsNb());
	436	myChartLines->Unbind (aCtx);
	437	myChartLines->unbindAttribute (aCtx, Graphic3d_TOA_COLOR);
	438	myChartLines->unbindAttribute (aCtx, Graphic3d_TOA_POS);
	439
	440	myChartLabels[0].Render (theWorkspace);
	441	myChartLabels[1].Render (theWorkspace);
	442	myChartLabels[2].Render (theWorkspace);
	443
	444	aCtx->WorldViewState.Pop();
	445	}
15669413	446
15669413	447	aCtx->ModelWorldState.Pop();
	448	aCtx->ApplyWorldViewMatrix();
	449
bf5f0ca2	450	theWorkspace->SetAspects (aTextAspectBack);
15669413	451	if (theWorkspace->UseDepthWrite() != wasEnabledDepth)
	452	{
	453	theWorkspace->UseDepthWrite() = wasEnabledDepth;
	454	glDepthMask (wasEnabledDepth ? GL_TRUE : GL_FALSE);
	455	}
	456	}
bc73b006	457
	458	// =======================================================================
	459	// function : DumpJson
	460	// purpose :
	461	// =======================================================================
	462	void OpenGl_FrameStatsPrs::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const
	463	{
	464	OCCT_DUMP_CLASS_BEGIN (theOStream, OpenGl_FrameStatsPrs)
	465
	466	OCCT_DUMP_BASE_CLASS (theOStream, theDepth, OpenGl_Element)
	467	}