[u/mrichter/AliRoot.git] / EVE / Alieve / AliEveTPCSector2DGL.cxx

// $Id$
// Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007

/**************************************************************************
 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for          *
 * full copyright notice.                                                 *
 **************************************************************************/

#include "AliEveTPCSector2DGL.h"

#include <Alieve/AliEveTPCData.h>

#include <TGLRnrCtx.h>
#include <TGLSelectRecord.h>
#include <TGLIncludes.h>

using namespace std;

//______________________________________________________________________________
// AliEveTPCSector2DGL
//

ClassImp(AliEveTPCSector2DGL)

// This can be optimized to non-pow-2 values once everybody has GL 1.4.

const Int_t AliEveTPCSector2DGL::fgkTextureWidth    = 256;
const Int_t AliEveTPCSector2DGL::fgkTextureHeight   = 128;
const Int_t AliEveTPCSector2DGL::fgkTextureByteSize = 4*256*128;

/******************************************************************************/

AliEveTPCSector2DGL::AliEveTPCSector2DGL() :
  TGLObject(),

  fSector     (0),
  fSectorData (0),

  fImage   (0),
  fTexture (0),
  fRTS     (0)
{}

AliEveTPCSector2DGL::~AliEveTPCSector2DGL()
{
  if(fImage)   delete fImage;
  if(fTexture) glDeleteTextures(1, &fTexture);
}

/******************************************************************************/

Bool_t AliEveTPCSector2DGL::SetModel(TObject* obj, const Option_t* /*opt*/)
{
  if(SetModelCheckClass(obj, AliEveTPCSector2D::Class())) {
    fSector = (AliEveTPCSector2D*) fExternalObj;
    return kTRUE;
  }
  return kFALSE;
}

void AliEveTPCSector2DGL::SetBBox()
{
  SetAxisAlignedBBox(((AliEveTPCSector2D*)fExternalObj)->AssertBBox());
}

/******************************************************************************/

void AliEveTPCSector2DGL::ProcessSelection(TGLRnrCtx       & /*rnrCtx*/,
				     TGLSelectRecord & rec)
{
  if (rec.GetN() != 3) return;
  Int_t row = rec.GetItem(1);
  Int_t pad = rec.GetItem(2);
  if (row < 0 || row >= AliEveTPCSectorData::GetNAllRows())      return;
  if (pad < 0 || pad >= AliEveTPCSectorData::GetNPadsInRow(row)) return;
  fSector->PadSelected(row, pad);
}

/******************************************************************************/

void AliEveTPCSector2DGL::DirectDraw(TGLRnrCtx& rnrCtx) const
{
  // Actual GL drawing.

  // printf("AliEveTPCSector2DGL::DirectDraw \n");

  fSectorData = fSector->GetSectorData();

  if(fRTS < fSector->fRTS && fSectorData != 0) {
    CreateTexture();
    fRTS = fSector->fRTS;
  }

  glPushAttrib(GL_CURRENT_BIT      | GL_DEPTH_BUFFER_BIT |
               GL_COLOR_BUFFER_BIT | GL_ENABLE_BIT       | GL_POLYGON_BIT);

  glDisable(GL_LIGHTING);
  glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
  glEnable(GL_COLOR_MATERIAL);
  glDisable(GL_CULL_FACE);

  // Display digits
  if(fSectorData != 0) {

    const AliEveTPCSectorData::SegmentInfo&  iSeg = AliEveTPCSectorData::GetInnSeg();
    const AliEveTPCSectorData::SegmentInfo& o1Seg = AliEveTPCSectorData::GetOut1Seg();
    const AliEveTPCSectorData::SegmentInfo& o2Seg = AliEveTPCSectorData::GetOut2Seg();

    if(rnrCtx.SecSelection()) {

      if(fSector->fRnrInn)  DisplayNamedQuads(iSeg, 0, 0);
      if(fSector->fRnrOut1) DisplayNamedQuads(o1Seg, iSeg.GetNMaxPads(), 0);
      if(fSector->fRnrOut2) DisplayNamedQuads(o2Seg, 0, o1Seg.GetNRows());

    } else {

      if(fSector->fUseTexture) {
	//texture
	glEnable(GL_BLEND);
	glDepthMask(GL_FALSE);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

	glPolygonOffset(2,2);
	glEnable(GL_POLYGON_OFFSET_FILL);

	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
	glBindTexture(GL_TEXTURE_2D, fTexture);
	glEnable(GL_TEXTURE_2D);

	if(fSector->fRnrInn)  DisplayTexture(iSeg, 0, 0);
	if(fSector->fRnrOut1) DisplayTexture(o1Seg, iSeg.GetNMaxPads(), 0);
	if(fSector->fRnrOut2) DisplayTexture(o2Seg, 0, o1Seg.GetNRows());

	glDisable(GL_TEXTURE_2D);
      } else {
	if(fSector->fRnrInn)  DisplayQuads(iSeg, 0, 0);
	if(fSector->fRnrOut1) DisplayQuads(o1Seg, iSeg.GetNMaxPads(), 0);
	if(fSector->fRnrOut2) DisplayQuads(o2Seg, 0, o1Seg.GetNRows());
      }
      glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
      DisplayFrame();
    }

  }

  glPopAttrib();
}

/******************************************************************************/
// Data import
/******************************************************************************/

void AliEveTPCSector2DGL::LoadPadrow(AliEveTPCSectorData::RowIterator& iter,
			       Int_t row, Int_t col_off) const
{
  Int_t    padVal;
  Int_t    time, val;

  Int_t    minTime = fSector->fMinTime;
  Int_t    maxTime = fSector->fMaxTime;
  Bool_t   halfBorderTime = ((maxTime - minTime) % 2 == 0);

  UChar_t* img_pos = GetRowCol(row, col_off);
  while (iter.NextPad()) {
    padVal = 0;

    while (iter.Next()) {
      time = iter.Time();
      val  = iter.Signal();

      if(time < minTime || time > maxTime)
	continue;

      if(fSector->fShowMax) {
        if(val > padVal) {
          padVal = val;
        }
      } else {
	if(halfBorderTime && (time == minTime || time == maxTime))
	  padVal += val/2;
	else
	  padVal += val;
      }
    }

    if(fSector->fShowMax == kFALSE && fSector->fAverage) {
      padVal = (Int_t)((Float_t)padVal / (maxTime - minTime));
    }
    padVal = TMath::Min(padVal, fSector->fMaxVal);
    if(padVal > fSector->fThreshold)
      fSector->ColorFromArray(padVal, img_pos);
    img_pos += 4;
  }
}

/******************************************************************************/

void AliEveTPCSector2DGL::CreateTexture() const
{
  if (fImage == 0 ) {
    fImage = new UChar_t[fgkTextureByteSize];
    glGenTextures(1, &fTexture);
  }
  memset(fImage, 0, fgkTextureByteSize);

  Int_t rowOff[3], colOff[3];
  Bool_t isOn[3];
  rowOff[0] = 0;
  rowOff[1] = rowOff[2] = -AliEveTPCSectorData::GetSeg(1).GetFirstRow();
  colOff[0] = colOff[2] = 0;
  colOff[1] = AliEveTPCSectorData::GetSeg(0).GetNMaxPads();
  isOn[0] = fSector->fRnrInn;
  isOn[1] = fSector->fRnrOut1;
  isOn[2] = fSector->fRnrOut2;

  fSector->SetupColorArray();

  // Loop over 3 main segments
  for (Int_t sId = 0; sId <= 2; ++sId) {
    if(isOn[sId] == kFALSE)
      continue;
    const AliEveTPCSectorData::SegmentInfo& sInfo = AliEveTPCSectorData::GetSeg(sId);
    for (Int_t row=sInfo.GetFirstRow(); row<=sInfo.GetLastRow(); ++row) {
      AliEveTPCSectorData::RowIterator i = fSectorData->MakeRowIterator(row);
      Int_t offset = (sInfo.GetNMaxPads() - AliEveTPCSectorData::GetNPadsInRow(row))/2;
      LoadPadrow(i, row + rowOff[sId], offset + colOff[sId]);
    }
  }

  glBindTexture  (GL_TEXTURE_2D, fTexture);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,GL_REPEAT);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,GL_REPEAT);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  glTexEnvf      (GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,   GL_REPLACE);
  glTexImage2D   (GL_TEXTURE_2D, 0, GL_RGBA, fgkTextureWidth, fgkTextureHeight,
                  0, GL_RGBA, GL_UNSIGNED_BYTE, fImage);

}

/******************************************************************************/
// Data display
/******************************************************************************/

void AliEveTPCSector2DGL::DisplayTexture(const AliEveTPCSectorData::SegmentInfo& seg,
                                   Int_t startCol, Int_t startRow) const
{
  Float_t w  = seg.GetNMaxPads()*seg.GetPadWidth()/2;
  Float_t y1 = seg.GetRLow();
  Float_t y2 = y1 + seg.GetNRows()*seg.GetPadHeight();

  Float_t u1 = (Float_t) startCol / fgkTextureWidth;
  Float_t v1 = (Float_t) startRow / fgkTextureHeight;
  Float_t u2 = u1 + (Float_t) seg.GetNMaxPads() / fgkTextureWidth;
  Float_t v2 = v1 + (Float_t) seg.GetNRows()    / fgkTextureHeight;

  glBegin(GL_QUADS);
  glTexCoord2f(u1, v1);  glVertex2f(-w, y1);
  glTexCoord2f(u1, v2);  glVertex2f(-w, y2);
  glTexCoord2f(u2, v2);  glVertex2f( w, y2);
  glTexCoord2f(u2, v1);  glVertex2f( w, y1);
  glEnd();
}

/******************************************************************************/

void AliEveTPCSector2DGL::DisplayQuads(const AliEveTPCSectorData::SegmentInfo& seg,
                                 Int_t startCol, Int_t startRow) const
{
  Float_t y_d, y_u;
  Float_t x_off, x;
  Float_t padW = seg.GetPadWidth();
  Float_t padH = seg.GetPadHeight();

  glBegin(GL_QUADS);
  for (Int_t row=0; row<seg.GetNRows(); row++) {
    y_d = seg.GetRLow() + row*padH;
    y_u = y_d + padH;
    x_off = -seg.GetNMaxPads()*padW/2;
    Int_t tpcRow = row + seg.GetFirstRow();
    Int_t deltaPad = (seg.GetNMaxPads() - AliEveTPCSectorData::GetNPadsInRow(tpcRow))/2;
    Int_t   maxPad = seg.GetNMaxPads() - deltaPad;
    UChar_t   *pix = GetRowCol(row + startRow, startCol + deltaPad);
    for (Int_t pad=deltaPad; pad<maxPad; pad++, pix+=4) {
      x = x_off + pad*padW;
      if (pix[3] != 0) {
        glColor4ubv(pix);
        glVertex2f(x+padW, y_d);
        glVertex2f(x,      y_d);
        glVertex2f(x,      y_u);
        glVertex2f(x+padW, y_u);
      }
    }
  }
  glEnd();
}

void AliEveTPCSector2DGL::DisplayNamedQuads(const AliEveTPCSectorData::SegmentInfo& seg,
				      Int_t startCol, Int_t startRow) const
{
  Float_t y_d, y_u;
  Float_t x_off, x;
  Float_t padW = seg.GetPadWidth();
  Float_t padH = seg.GetPadHeight();

  glPushName(0);
  for (Int_t row=0; row<seg.GetNRows(); row++) {
    y_d = seg.GetRLow() + row*padH;
    y_u = y_d + padH;
    x_off = -seg.GetNMaxPads()*padW/2;
    Int_t tpcRow = row + seg.GetFirstRow();
    glLoadName(tpcRow);
    Int_t deltaPad = (seg.GetNMaxPads() - AliEveTPCSectorData::GetNPadsInRow(tpcRow))/2;
    Int_t   maxPad = seg.GetNMaxPads() - deltaPad;
    UChar_t   *pix = GetRowCol(row + startRow, startCol + deltaPad);
    glPushName(0);
    for (Int_t pad=deltaPad; pad<maxPad; pad++, pix+=4) {
      x = x_off + pad*padW;
      if (pix[3] != 0 || fSector->fPickEmpty) {
	glLoadName(pad - deltaPad);
	glBegin(GL_QUADS);
        glVertex2f(x+padW, y_d);
        glVertex2f(x,      y_d);
        glVertex2f(x,      y_u);
        glVertex2f(x+padW, y_u);
	glEnd();
      }
    }
    glPopName();
  }
  glPopName();
}

/******************************************************************************/
// Frame drawing
/******************************************************************************/

void AliEveTPCSector2DGL::TraceStepsUp(const AliEveTPCSectorData::SegmentInfo& s)
{
  Float_t x = -(s.GetNMaxPads()*1.0/2 - s.GetNYSteps())*s.GetPadWidth();
  Float_t y  = s.GetRLow();
  glVertex2f(x, y);
  for (Int_t i=0; i<s.GetNYSteps(); ++i) {
    y = s.GetYStep(i);
    glVertex2f(x, y);
    x -= s.GetPadWidth();
    glVertex2f(x, y);
  }
  y =  s.GetRLow() + s.GetNRows()*s.GetPadHeight();
  glVertex2f(-s.GetNMaxPads()*s.GetPadWidth()/2, y);
}

void AliEveTPCSector2DGL::TraceStepsDown(const AliEveTPCSectorData::SegmentInfo& s)
{
  Float_t x = s.GetNMaxPads()*s.GetPadWidth()/2;
  Float_t y = s.GetRLow() + s.GetNRows()*s.GetPadHeight();
  glVertex2f(x, y);
  for (Int_t i=s.GetNYSteps() - 1; i>=0; --i) {
    y =  s.GetYStep(i);
    glVertex2f(x, y);
    x -= s.GetPadWidth();
    glVertex2f(x, y);
  }
  y = s.GetRLow();
  glVertex2f((0.5*s.GetNMaxPads() - s.GetNYSteps())*s.GetPadWidth(), y);
}

void AliEveTPCSector2DGL::DisplayFrame() const
{
  UChar_t col[4];
  TEveUtil::TEveUtil::ColorFromIdx(fSector->fFrameColor, col);
  glColor4ubv(col);

  if(fSector->fRnrInn) {
    glBegin(GL_POLYGON);
    TraceStepsUp  (AliEveTPCSectorData::GetInnSeg());
    TraceStepsDown(AliEveTPCSectorData::GetInnSeg());
    glEnd();
  }
  if(fSector->fRnrOut1) {
    glBegin(GL_POLYGON);
    TraceStepsUp  (AliEveTPCSectorData::GetOut1Seg());
    TraceStepsDown(AliEveTPCSectorData::GetOut1Seg());
    glEnd();
  }
  if(fSector->fRnrOut2) {
    glBegin(GL_POLYGON);
    TraceStepsUp  (AliEveTPCSectorData::GetOut2Seg());
    TraceStepsDown(AliEveTPCSectorData::GetOut2Seg());
    glEnd();
  }
}
Commit	Line	Data
d810d0de	1	// $Id$
d810d0de	2	// Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
915dabe1	3
d810d0de	4	/**************************************************************************
	5	* Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
	6	* See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
51346b82	7	* full copyright notice. *
d810d0de	8	**************************************************************************/
915dabe1	9
d810d0de	10	#include "AliEveTPCSector2DGL.h"
	11
	12	#include <Alieve/AliEveTPCData.h>
915dabe1	13
19208112	14	#include <TGLRnrCtx.h>
	15	#include <TGLSelectRecord.h>
	16	#include <TGLIncludes.h>
d810d0de	17
915dabe1	18	using namespace std;
915dabe1	19
57ffa5fb	20	//______________________________________________________________________________
d810d0de	21	// AliEveTPCSector2DGL
68084553	22	//
68084553	23
d810d0de	24	ClassImp(AliEveTPCSector2DGL)
68084553	25
68084553	26	// This can be optimized to non-pow-2 values once everybody has GL 1.4.
915dabe1	27
d810d0de	28	const Int_t AliEveTPCSector2DGL::fgkTextureWidth = 256;
	29	const Int_t AliEveTPCSector2DGL::fgkTextureHeight = 128;
	30	const Int_t AliEveTPCSector2DGL::fgkTextureByteSize = 4256128;
915dabe1	31
57ffa5fb	32	/******************************************************************************/
915dabe1	33
d810d0de	34	AliEveTPCSector2DGL::AliEveTPCSector2DGL() :
265ecb21	35	TGLObject(),
51346b82	36
265ecb21	37	fSector (0),
	38	fSectorData (0),
	39
	40	fImage (0),
	41	fTexture (0),
	42	fRTS (0)
	43	{}
915dabe1	44
d810d0de	45	AliEveTPCSector2DGL::~AliEveTPCSector2DGL()
915dabe1	46	{
	47	if(fImage) delete fImage;
	48	if(fTexture) glDeleteTextures(1, &fTexture);
	49	}
	50
57ffa5fb	51	/******************************************************************************/
915dabe1	52
d810d0de	53	Bool_t AliEveTPCSector2DGL::SetModel(TObject* obj, const Option_t* /opt/)
915dabe1	54	{
d810d0de	55	if(SetModelCheckClass(obj, AliEveTPCSector2D::Class())) {
d810d0de	56	fSector = (AliEveTPCSector2D*) fExternalObj;
891e4bb4	57	return kTRUE;
915dabe1	58	}
891e4bb4	59	return kFALSE;
915dabe1	60	}
915dabe1	61
d810d0de	62	void AliEveTPCSector2DGL::SetBBox()
915dabe1	63	{
d810d0de	64	SetAxisAlignedBBox(((AliEveTPCSector2D*)fExternalObj)->AssertBBox());
915dabe1	65	}
915dabe1	66
57ffa5fb	67	/******************************************************************************/
915dabe1	68
d810d0de	69	void AliEveTPCSector2DGL::ProcessSelection(TGLRnrCtx & /rnrCtx/,
19208112	70	TGLSelectRecord & rec)
a8600b56	71	{
19208112	72	if (rec.GetN() != 3) return;
	73	Int_t row = rec.GetItem(1);
	74	Int_t pad = rec.GetItem(2);
d810d0de	75	if (row < 0 \|\| row >= AliEveTPCSectorData::GetNAllRows()) return;
d810d0de	76	if (pad < 0 \|\| pad >= AliEveTPCSectorData::GetNPadsInRow(row)) return;
96ff1952	77	fSector->PadSelected(row, pad);
a8600b56	78	}
a8600b56	79
57ffa5fb	80	/******************************************************************************/
a8600b56	81
d810d0de	82	void AliEveTPCSector2DGL::DirectDraw(TGLRnrCtx& rnrCtx) const
915dabe1	83	{
	84	// Actual GL drawing.
	85
d810d0de	86	// printf("AliEveTPCSector2DGL::DirectDraw \n");
915dabe1	87
fa3a3795	88	fSectorData = fSector->GetSectorData();
915dabe1	89
	90	if(fRTS < fSector->fRTS && fSectorData != 0) {
	91	CreateTexture();
	92	fRTS = fSector->fRTS;
	93	}
	94
	95	glPushAttrib(GL_CURRENT_BIT \| GL_DEPTH_BUFFER_BIT \|
	96	GL_COLOR_BUFFER_BIT \| GL_ENABLE_BIT \| GL_POLYGON_BIT);
	97
	98	glDisable(GL_LIGHTING);
	99	glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
	100	glEnable(GL_COLOR_MATERIAL);
	101	glDisable(GL_CULL_FACE);
	102
	103	// Display digits
	104	if(fSectorData != 0) {
	105
d810d0de	106	const AliEveTPCSectorData::SegmentInfo& iSeg = AliEveTPCSectorData::GetInnSeg();
	107	const AliEveTPCSectorData::SegmentInfo& o1Seg = AliEveTPCSectorData::GetOut1Seg();
	108	const AliEveTPCSectorData::SegmentInfo& o2Seg = AliEveTPCSectorData::GetOut2Seg();
915dabe1	109
19208112	110	if(rnrCtx.SecSelection()) {
426530cc	111
	112	if(fSector->fRnrInn) DisplayNamedQuads(iSeg, 0, 0);
	113	if(fSector->fRnrOut1) DisplayNamedQuads(o1Seg, iSeg.GetNMaxPads(), 0);
	114	if(fSector->fRnrOut2) DisplayNamedQuads(o2Seg, 0, o1Seg.GetNRows());
	115
b56d8877	116	} else {
426530cc	117
	118	if(fSector->fUseTexture) {
	119	//texture
	120	glEnable(GL_BLEND);
	121	glDepthMask(GL_FALSE);
	122	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	123
	124	glPolygonOffset(2,2);
	125	glEnable(GL_POLYGON_OFFSET_FILL);
	126
	127	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
	128	glBindTexture(GL_TEXTURE_2D, fTexture);
	129	glEnable(GL_TEXTURE_2D);
	130
	131	if(fSector->fRnrInn) DisplayTexture(iSeg, 0, 0);
	132	if(fSector->fRnrOut1) DisplayTexture(o1Seg, iSeg.GetNMaxPads(), 0);
	133	if(fSector->fRnrOut2) DisplayTexture(o2Seg, 0, o1Seg.GetNRows());
	134
	135	glDisable(GL_TEXTURE_2D);
	136	} else {
	137	if(fSector->fRnrInn) DisplayQuads(iSeg, 0, 0);
	138	if(fSector->fRnrOut1) DisplayQuads(o1Seg, iSeg.GetNMaxPads(), 0);
	139	if(fSector->fRnrOut2) DisplayQuads(o2Seg, 0, o1Seg.GetNRows());
	140	}
	141	glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
	142	DisplayFrame();
915dabe1	143	}
915dabe1	144
426530cc	145	}
915dabe1	146
	147	glPopAttrib();
	148	}
	149
57ffa5fb	150	/******************************************************************************/
915dabe1	151	// Data import
57ffa5fb	152	/******************************************************************************/
915dabe1	153
d810d0de	154	void AliEveTPCSector2DGL::LoadPadrow(AliEveTPCSectorData::RowIterator& iter,
915dabe1	155	Int_t row, Int_t col_off) const
915dabe1	156	{
b56d8877	157	Int_t padVal;
51346b82	158	Int_t time, val;
915dabe1	159
b56d8877	160	Int_t minTime = fSector->fMinTime;
	161	Int_t maxTime = fSector->fMaxTime;
	162	Bool_t halfBorderTime = ((maxTime - minTime) % 2 == 0);
915dabe1	163
	164	UChar_t* img_pos = GetRowCol(row, col_off);
	165	while (iter.NextPad()) {
51346b82	166	padVal = 0;
915dabe1	167
	168	while (iter.Next()) {
	169	time = iter.Time();
	170	val = iter.Signal();
	171
b56d8877	172	if(time < minTime \|\| time > maxTime)
	173	continue;
	174
915dabe1	175	if(fSector->fShowMax) {
b56d8877	176	if(val > padVal) {
b56d8877	177	padVal = val;
915dabe1	178	}
915dabe1	179	} else {
b56d8877	180	if(halfBorderTime && (time == minTime \|\| time == maxTime))
	181	padVal += val/2;
	182	else
	183	padVal += val;
915dabe1	184	}
	185	}
	186
b56d8877	187	if(fSector->fShowMax == kFALSE && fSector->fAverage) {
	188	padVal = (Int_t)((Float_t)padVal / (maxTime - minTime));
	189	}
	190	padVal = TMath::Min(padVal, fSector->fMaxVal);
	191	if(padVal > fSector->fThreshold)
891e4bb4	192	fSector->ColorFromArray(padVal, img_pos);
915dabe1	193	img_pos += 4;
	194	}
	195	}
	196
57ffa5fb	197	/******************************************************************************/
915dabe1	198
d810d0de	199	void AliEveTPCSector2DGL::CreateTexture() const
915dabe1	200	{
	201	if (fImage == 0 ) {
	202	fImage = new UChar_t[fgkTextureByteSize];
	203	glGenTextures(1, &fTexture);
	204	}
	205	memset(fImage, 0, fgkTextureByteSize);
	206
	207	Int_t rowOff[3], colOff[3];
b56d8877	208	Bool_t isOn[3];
b56d8877	209	rowOff[0] = 0;
d810d0de	210	rowOff[1] = rowOff[2] = -AliEveTPCSectorData::GetSeg(1).GetFirstRow();
b56d8877	211	colOff[0] = colOff[2] = 0;
d810d0de	212	colOff[1] = AliEveTPCSectorData::GetSeg(0).GetNMaxPads();
b56d8877	213	isOn[0] = fSector->fRnrInn;
	214	isOn[1] = fSector->fRnrOut1;
	215	isOn[2] = fSector->fRnrOut2;
915dabe1	216
891e4bb4	217	fSector->SetupColorArray();
891e4bb4	218
915dabe1	219	// Loop over 3 main segments
915dabe1	220	for (Int_t sId = 0; sId <= 2; ++sId) {
b56d8877	221	if(isOn[sId] == kFALSE)
b56d8877	222	continue;
d810d0de	223	const AliEveTPCSectorData::SegmentInfo& sInfo = AliEveTPCSectorData::GetSeg(sId);
915dabe1	224	for (Int_t row=sInfo.GetFirstRow(); row<=sInfo.GetLastRow(); ++row) {
d810d0de	225	AliEveTPCSectorData::RowIterator i = fSectorData->MakeRowIterator(row);
d810d0de	226	Int_t offset = (sInfo.GetNMaxPads() - AliEveTPCSectorData::GetNPadsInRow(row))/2;
915dabe1	227	LoadPadrow(i, row + rowOff[sId], offset + colOff[sId]);
	228	}
	229	}
	230
	231	glBindTexture (GL_TEXTURE_2D, fTexture);
	232	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,GL_REPEAT);
	233	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,GL_REPEAT);
	234	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	235	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
426530cc	236	glTexEnvf (GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE, GL_REPLACE);
915dabe1	237	glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, fgkTextureWidth, fgkTextureHeight,
	238	0, GL_RGBA, GL_UNSIGNED_BYTE, fImage);
	239
	240	}
	241
57ffa5fb	242	/******************************************************************************/
915dabe1	243	// Data display
57ffa5fb	244	/******************************************************************************/
915dabe1	245
d810d0de	246	void AliEveTPCSector2DGL::DisplayTexture(const AliEveTPCSectorData::SegmentInfo& seg,
426530cc	247	Int_t startCol, Int_t startRow) const
915dabe1	248	{
426530cc	249	Float_t w = seg.GetNMaxPads()*seg.GetPadWidth()/2;
	250	Float_t y1 = seg.GetRLow();
	251	Float_t y2 = y1 + seg.GetNRows()*seg.GetPadHeight();
	252
915dabe1	253	Float_t u1 = (Float_t) startCol / fgkTextureWidth;
915dabe1	254	Float_t v1 = (Float_t) startRow / fgkTextureHeight;
426530cc	255	Float_t u2 = u1 + (Float_t) seg.GetNMaxPads() / fgkTextureWidth;
426530cc	256	Float_t v2 = v1 + (Float_t) seg.GetNRows() / fgkTextureHeight;
915dabe1	257
51346b82	258	glBegin(GL_QUADS);
426530cc	259	glTexCoord2f(u1, v1); glVertex2f(-w, y1);
	260	glTexCoord2f(u1, v2); glVertex2f(-w, y2);
	261	glTexCoord2f(u2, v2); glVertex2f( w, y2);
	262	glTexCoord2f(u2, v1); glVertex2f( w, y1);
915dabe1	263	glEnd();
	264	}
	265
57ffa5fb	266	/******************************************************************************/
915dabe1	267
d810d0de	268	void AliEveTPCSector2DGL::DisplayQuads(const AliEveTPCSectorData::SegmentInfo& seg,
426530cc	269	Int_t startCol, Int_t startRow) const
915dabe1	270	{
915dabe1	271	Float_t y_d, y_u;
915dabe1	272	Float_t x_off, x;
426530cc	273	Float_t padW = seg.GetPadWidth();
426530cc	274	Float_t padH = seg.GetPadHeight();
915dabe1	275
915dabe1	276	glBegin(GL_QUADS);
426530cc	277	for (Int_t row=0; row<seg.GetNRows(); row++) {
426530cc	278	y_d = seg.GetRLow() + row*padH;
915dabe1	279	y_u = y_d + padH;
426530cc	280	x_off = -seg.GetNMaxPads()*padW/2;
426530cc	281	Int_t tpcRow = row + seg.GetFirstRow();
d810d0de	282	Int_t deltaPad = (seg.GetNMaxPads() - AliEveTPCSectorData::GetNPadsInRow(tpcRow))/2;
426530cc	283	Int_t maxPad = seg.GetNMaxPads() - deltaPad;
	284	UChar_t *pix = GetRowCol(row + startRow, startCol + deltaPad);
	285	for (Int_t pad=deltaPad; pad<maxPad; pad++, pix+=4) {
915dabe1	286	x = x_off + pad*padW;
	287	if (pix[3] != 0) {
	288	glColor4ubv(pix);
	289	glVertex2f(x+padW, y_d);
	290	glVertex2f(x, y_d);
	291	glVertex2f(x, y_u);
	292	glVertex2f(x+padW, y_u);
	293	}
	294	}
	295	}
	296	glEnd();
	297	}
	298
d810d0de	299	void AliEveTPCSector2DGL::DisplayNamedQuads(const AliEveTPCSectorData::SegmentInfo& seg,
426530cc	300	Int_t startCol, Int_t startRow) const
	301	{
	302	Float_t y_d, y_u;
	303	Float_t x_off, x;
	304	Float_t padW = seg.GetPadWidth();
	305	Float_t padH = seg.GetPadHeight();
	306
	307	glPushName(0);
	308	for (Int_t row=0; row<seg.GetNRows(); row++) {
	309	y_d = seg.GetRLow() + row*padH;
	310	y_u = y_d + padH;
	311	x_off = -seg.GetNMaxPads()*padW/2;
	312	Int_t tpcRow = row + seg.GetFirstRow();
	313	glLoadName(tpcRow);
d810d0de	314	Int_t deltaPad = (seg.GetNMaxPads() - AliEveTPCSectorData::GetNPadsInRow(tpcRow))/2;
426530cc	315	Int_t maxPad = seg.GetNMaxPads() - deltaPad;
	316	UChar_t *pix = GetRowCol(row + startRow, startCol + deltaPad);
	317	glPushName(0);
	318	for (Int_t pad=deltaPad; pad<maxPad; pad++, pix+=4) {
	319	x = x_off + pad*padW;
a8600b56	320	if (pix[3] != 0 \|\| fSector->fPickEmpty) {
426530cc	321	glLoadName(pad - deltaPad);
	322	glBegin(GL_QUADS);
	323	glVertex2f(x+padW, y_d);
	324	glVertex2f(x, y_d);
	325	glVertex2f(x, y_u);
	326	glVertex2f(x+padW, y_u);
	327	glEnd();
	328	}
	329	}
	330	glPopName();
	331	}
	332	glPopName();
	333	}
	334
57ffa5fb	335	/******************************************************************************/
915dabe1	336	// Frame drawing
57ffa5fb	337	/******************************************************************************/
915dabe1	338
d810d0de	339	void AliEveTPCSector2DGL::TraceStepsUp(const AliEveTPCSectorData::SegmentInfo& s)
915dabe1	340	{
	341	Float_t x = -(s.GetNMaxPads()1.0/2 - s.GetNYSteps())s.GetPadWidth();
	342	Float_t y = s.GetRLow();
	343	glVertex2f(x, y);
	344	for (Int_t i=0; i<s.GetNYSteps(); ++i) {
	345	y = s.GetYStep(i);
	346	glVertex2f(x, y);
	347	x -= s.GetPadWidth();
	348	glVertex2f(x, y);
	349	}
	350	y = s.GetRLow() + s.GetNRows()*s.GetPadHeight();
	351	glVertex2f(-s.GetNMaxPads()*s.GetPadWidth()/2, y);
	352	}
	353
51346b82	354	void AliEveTPCSector2DGL::TraceStepsDown(const AliEveTPCSectorData::SegmentInfo& s)
915dabe1	355	{
	356	Float_t x = s.GetNMaxPads()*s.GetPadWidth()/2;
	357	Float_t y = s.GetRLow() + s.GetNRows()*s.GetPadHeight();
	358	glVertex2f(x, y);
	359	for (Int_t i=s.GetNYSteps() - 1; i>=0; --i) {
	360	y = s.GetYStep(i);
	361	glVertex2f(x, y);
	362	x -= s.GetPadWidth();
	363	glVertex2f(x, y);
	364	}
	365	y = s.GetRLow();
	366	glVertex2f((0.5s.GetNMaxPads() - s.GetNYSteps())s.GetPadWidth(), y);
	367	}
	368
d810d0de	369	void AliEveTPCSector2DGL::DisplayFrame() const
915dabe1	370	{
092578a7	371	UChar_t col[4];
d810d0de	372	TEveUtil::TEveUtil::ColorFromIdx(fSector->fFrameColor, col);
092578a7	373	glColor4ubv(col);
915dabe1	374
b56d8877	375	if(fSector->fRnrInn) {
b56d8877	376	glBegin(GL_POLYGON);
d810d0de	377	TraceStepsUp (AliEveTPCSectorData::GetInnSeg());
d810d0de	378	TraceStepsDown(AliEveTPCSectorData::GetInnSeg());
b56d8877	379	glEnd();
	380	}
	381	if(fSector->fRnrOut1) {
	382	glBegin(GL_POLYGON);
d810d0de	383	TraceStepsUp (AliEveTPCSectorData::GetOut1Seg());
d810d0de	384	TraceStepsDown(AliEveTPCSectorData::GetOut1Seg());
b56d8877	385	glEnd();
	386	}
	387	if(fSector->fRnrOut2) {
	388	glBegin(GL_POLYGON);
d810d0de	389	TraceStepsUp (AliEveTPCSectorData::GetOut2Seg());
d810d0de	390	TraceStepsDown(AliEveTPCSectorData::GetOut2Seg());
b56d8877	391	glEnd();
b56d8877	392	}
915dabe1	393	}