[u/mrichter/AliRoot.git] / EVE / Alieve / TPCSector2DGL.cxx

// $Header$

#include "TPCSector2DGL.h"

#include <Alieve/TPCData.h>

#include <TGLRnrCtx.h>
#include <TGLSelectRecord.h>
#include <TGLIncludes.h>
using namespace Alieve;
using namespace std;

//______________________________________________________________________
// TPCSector2DGL
//

ClassImp(TPCSector2DGL)

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

const Int_t TPCSector2DGL::fgkTextureWidth    = 256;
const Int_t TPCSector2DGL::fgkTextureHeight   = 128;
const Int_t TPCSector2DGL::fgkTextureByteSize = 4*256*128;

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

TPCSector2DGL::TPCSector2DGL() :
  TGLObject(),
  
  fSector     (0),
  fSectorData (0),

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

TPCSector2DGL::~TPCSector2DGL()
{
  if(fImage)   delete fImage;
  if(fTexture) glDeleteTextures(1, &fTexture);
}

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

Bool_t TPCSector2DGL::SetModel(TObject* obj, const Option_t* /*opt*/)
{
  if(SetModelCheckClass(obj, Alieve::TPCSector2D::Class())) {
    fSector = (TPCSector2D*) fExternalObj;
    return kTRUE;
  }
  return kFALSE;
}

void TPCSector2DGL::SetBBox()
{
  SetAxisAlignedBBox(((TPCSector2D*)fExternalObj)->AssertBBox());
}

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

void TPCSector2DGL::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 >= TPCSectorData::GetNAllRows())      return;
  if (pad < 0 || pad >= TPCSectorData::GetNPadsInRow(row)) return;
  fSector->PadSelected(row, pad);
}

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

void TPCSector2DGL::DirectDraw(TGLRnrCtx& rnrCtx) const
{
  // Actual GL drawing.

  // printf("TPCSector2DGL::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 TPCSectorData::SegmentInfo&  iSeg = TPCSectorData::GetInnSeg();
    const TPCSectorData::SegmentInfo& o1Seg = TPCSectorData::GetOut1Seg();
    const TPCSectorData::SegmentInfo& o2Seg = TPCSectorData::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 TPCSector2DGL::LoadPadrow(TPCSectorData::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 TPCSector2DGL::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] = -TPCSectorData::GetSeg(1).GetFirstRow();
  colOff[0] = colOff[2] = 0;
  colOff[1] = TPCSectorData::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 TPCSectorData::SegmentInfo& sInfo = TPCSectorData::GetSeg(sId);
    for (Int_t row=sInfo.GetFirstRow(); row<=sInfo.GetLastRow(); ++row) {
      TPCSectorData::RowIterator i = fSectorData->MakeRowIterator(row);
      Int_t offset = (sInfo.GetNMaxPads() - TPCSectorData::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 TPCSector2DGL::DisplayTexture(const TPCSectorData::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 TPCSector2DGL::DisplayQuads(const TPCSectorData::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() - TPCSectorData::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 TPCSector2DGL::DisplayNamedQuads(const TPCSectorData::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() - TPCSectorData::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 TPCSector2DGL::TraceStepsUp(const TPCSectorData::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 TPCSector2DGL::TraceStepsDown(const TPCSectorData::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 TPCSector2DGL::DisplayFrame() const
{
  UChar_t col[4];
  TEveUtil::ColorFromIdx(fSector->fFrameColor, col);
  glColor4ubv(col);

  if(fSector->fRnrInn) {
    glBegin(GL_POLYGON);
    TraceStepsUp  (TPCSectorData::GetInnSeg());
    TraceStepsDown(TPCSectorData::GetInnSeg());
    glEnd();
  }
  if(fSector->fRnrOut1) {
    glBegin(GL_POLYGON);
    TraceStepsUp  (TPCSectorData::GetOut1Seg());
    TraceStepsDown(TPCSectorData::GetOut1Seg());
    glEnd();
  }
  if(fSector->fRnrOut2) {
    glBegin(GL_POLYGON);
    TraceStepsUp  (TPCSectorData::GetOut2Seg());
    TraceStepsDown(TPCSectorData::GetOut2Seg());
    glEnd();
  }
}
Commit	Line	Data
915dabe1	1	// $Header$
	2
	3	#include "TPCSector2DGL.h"
	4
	5	#include <Alieve/TPCData.h>
	6
19208112	7	#include <TGLRnrCtx.h>
	8	#include <TGLSelectRecord.h>
	9	#include <TGLIncludes.h>
915dabe1	10	using namespace Alieve;
	11	using namespace std;
	12
68084553	13	//______________________________________________________________________
	14	// TPCSector2DGL
	15	//
	16
	17	ClassImp(TPCSector2DGL)
	18
	19	// This can be optimized to non-pow-2 values once everybody has GL 1.4.
915dabe1	20
	21	const Int_t TPCSector2DGL::fgkTextureWidth = 256;
	22	const Int_t TPCSector2DGL::fgkTextureHeight = 128;
	23	const Int_t TPCSector2DGL::fgkTextureByteSize = 4256128;
	24
	25	/**************************************************************************/
	26
265ecb21	27	TPCSector2DGL::TPCSector2DGL() :
	28	TGLObject(),
	29
	30	fSector (0),
	31	fSectorData (0),
	32
	33	fImage (0),
	34	fTexture (0),
	35	fRTS (0)
	36	{}
915dabe1	37
	38	TPCSector2DGL::~TPCSector2DGL()
	39	{
	40	if(fImage) delete fImage;
	41	if(fTexture) glDeleteTextures(1, &fTexture);
	42	}
	43
	44	/**************************************************************************/
	45
19208112	46	Bool_t TPCSector2DGL::SetModel(TObject* obj, const Option_t* /opt/)
915dabe1	47	{
426530cc	48	if(SetModelCheckClass(obj, Alieve::TPCSector2D::Class())) {
915dabe1	49	fSector = (TPCSector2D*) fExternalObj;
891e4bb4	50	return kTRUE;
915dabe1	51	}
891e4bb4	52	return kFALSE;
915dabe1	53	}
	54
	55	void TPCSector2DGL::SetBBox()
	56	{
606c4ed7	57	SetAxisAlignedBBox(((TPCSector2D*)fExternalObj)->AssertBBox());
915dabe1	58	}
	59
	60	/**************************************************************************/
	61
19208112	62	void TPCSector2DGL::ProcessSelection(TGLRnrCtx & /rnrCtx/,
19208112	63	TGLSelectRecord & rec)
a8600b56	64	{
19208112	65	if (rec.GetN() != 3) return;
	66	Int_t row = rec.GetItem(1);
	67	Int_t pad = rec.GetItem(2);
96ff1952	68	if (row < 0 \|\| row >= TPCSectorData::GetNAllRows()) return;
a8600b56	69	if (pad < 0 \|\| pad >= TPCSectorData::GetNPadsInRow(row)) return;
96ff1952	70	fSector->PadSelected(row, pad);
a8600b56	71	}
	72
	73	/**************************************************************************/
	74
19208112	75	void TPCSector2DGL::DirectDraw(TGLRnrCtx& rnrCtx) const
915dabe1	76	{
	77	// Actual GL drawing.
	78
	79	// printf("TPCSector2DGL::DirectDraw \n");
	80
fa3a3795	81	fSectorData = fSector->GetSectorData();
915dabe1	82
	83	if(fRTS < fSector->fRTS && fSectorData != 0) {
	84	CreateTexture();
	85	fRTS = fSector->fRTS;
	86	}
	87
	88	glPushAttrib(GL_CURRENT_BIT \| GL_DEPTH_BUFFER_BIT \|
	89	GL_COLOR_BUFFER_BIT \| GL_ENABLE_BIT \| GL_POLYGON_BIT);
	90
	91	glDisable(GL_LIGHTING);
	92	glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
	93	glEnable(GL_COLOR_MATERIAL);
	94	glDisable(GL_CULL_FACE);
	95
	96	// Display digits
	97	if(fSectorData != 0) {
	98
	99	const TPCSectorData::SegmentInfo& iSeg = TPCSectorData::GetInnSeg();
	100	const TPCSectorData::SegmentInfo& o1Seg = TPCSectorData::GetOut1Seg();
	101	const TPCSectorData::SegmentInfo& o2Seg = TPCSectorData::GetOut2Seg();
	102
19208112	103	if(rnrCtx.SecSelection()) {
426530cc	104
	105	if(fSector->fRnrInn) DisplayNamedQuads(iSeg, 0, 0);
	106	if(fSector->fRnrOut1) DisplayNamedQuads(o1Seg, iSeg.GetNMaxPads(), 0);
	107	if(fSector->fRnrOut2) DisplayNamedQuads(o2Seg, 0, o1Seg.GetNRows());
	108
b56d8877	109	} else {
426530cc	110
	111	if(fSector->fUseTexture) {
	112	//texture
	113	glEnable(GL_BLEND);
	114	glDepthMask(GL_FALSE);
	115	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	116
	117	glPolygonOffset(2,2);
	118	glEnable(GL_POLYGON_OFFSET_FILL);
	119
	120	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
	121	glBindTexture(GL_TEXTURE_2D, fTexture);
	122	glEnable(GL_TEXTURE_2D);
	123
	124	if(fSector->fRnrInn) DisplayTexture(iSeg, 0, 0);
	125	if(fSector->fRnrOut1) DisplayTexture(o1Seg, iSeg.GetNMaxPads(), 0);
	126	if(fSector->fRnrOut2) DisplayTexture(o2Seg, 0, o1Seg.GetNRows());
	127
	128	glDisable(GL_TEXTURE_2D);
	129	} else {
	130	if(fSector->fRnrInn) DisplayQuads(iSeg, 0, 0);
	131	if(fSector->fRnrOut1) DisplayQuads(o1Seg, iSeg.GetNMaxPads(), 0);
	132	if(fSector->fRnrOut2) DisplayQuads(o2Seg, 0, o1Seg.GetNRows());
	133	}
	134	glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
	135	DisplayFrame();
915dabe1	136	}
915dabe1	137
426530cc	138	}
915dabe1	139
	140	glPopAttrib();
	141	}
	142
	143	/**************************************************************************/
	144	// Data import
	145	/**************************************************************************/
	146
	147	void TPCSector2DGL::LoadPadrow(TPCSectorData::RowIterator& iter,
	148	Int_t row, Int_t col_off) const
	149	{
b56d8877	150	Int_t padVal;
915dabe1	151	Int_t time, val;
915dabe1	152
b56d8877	153	Int_t minTime = fSector->fMinTime;
	154	Int_t maxTime = fSector->fMaxTime;
	155	Bool_t halfBorderTime = ((maxTime - minTime) % 2 == 0);
915dabe1	156
	157	UChar_t* img_pos = GetRowCol(row, col_off);
	158	while (iter.NextPad()) {
b56d8877	159	padVal = 0;
915dabe1	160
	161	while (iter.Next()) {
	162	time = iter.Time();
	163	val = iter.Signal();
	164
b56d8877	165	if(time < minTime \|\| time > maxTime)
	166	continue;
	167
915dabe1	168	if(fSector->fShowMax) {
b56d8877	169	if(val > padVal) {
b56d8877	170	padVal = val;
915dabe1	171	}
915dabe1	172	} else {
b56d8877	173	if(halfBorderTime && (time == minTime \|\| time == maxTime))
	174	padVal += val/2;
	175	else
	176	padVal += val;
915dabe1	177	}
	178	}
	179
b56d8877	180	if(fSector->fShowMax == kFALSE && fSector->fAverage) {
	181	padVal = (Int_t)((Float_t)padVal / (maxTime - minTime));
	182	}
	183	padVal = TMath::Min(padVal, fSector->fMaxVal);
	184	if(padVal > fSector->fThreshold)
891e4bb4	185	fSector->ColorFromArray(padVal, img_pos);
915dabe1	186	img_pos += 4;
	187	}
	188	}
	189
	190	/**************************************************************************/
	191
	192	void TPCSector2DGL::CreateTexture() const
	193	{
	194	if (fImage == 0 ) {
	195	fImage = new UChar_t[fgkTextureByteSize];
	196	glGenTextures(1, &fTexture);
	197	}
	198	memset(fImage, 0, fgkTextureByteSize);
	199
	200	Int_t rowOff[3], colOff[3];
b56d8877	201	Bool_t isOn[3];
	202	rowOff[0] = 0;
	203	rowOff[1] = rowOff[2] = -TPCSectorData::GetSeg(1).GetFirstRow();
	204	colOff[0] = colOff[2] = 0;
092578a7	205	colOff[1] = TPCSectorData::GetSeg(0).GetNMaxPads();
b56d8877	206	isOn[0] = fSector->fRnrInn;
	207	isOn[1] = fSector->fRnrOut1;
	208	isOn[2] = fSector->fRnrOut2;
915dabe1	209
891e4bb4	210	fSector->SetupColorArray();
891e4bb4	211
915dabe1	212	// Loop over 3 main segments
915dabe1	213	for (Int_t sId = 0; sId <= 2; ++sId) {
b56d8877	214	if(isOn[sId] == kFALSE)
b56d8877	215	continue;
915dabe1	216	const TPCSectorData::SegmentInfo& sInfo = TPCSectorData::GetSeg(sId);
	217	for (Int_t row=sInfo.GetFirstRow(); row<=sInfo.GetLastRow(); ++row) {
	218	TPCSectorData::RowIterator i = fSectorData->MakeRowIterator(row);
	219	Int_t offset = (sInfo.GetNMaxPads() - TPCSectorData::GetNPadsInRow(row))/2;
	220	LoadPadrow(i, row + rowOff[sId], offset + colOff[sId]);
	221	}
	222	}
	223
	224	glBindTexture (GL_TEXTURE_2D, fTexture);
	225	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,GL_REPEAT);
	226	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,GL_REPEAT);
	227	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	228	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
426530cc	229	glTexEnvf (GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE, GL_REPLACE);
915dabe1	230	glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, fgkTextureWidth, fgkTextureHeight,
	231	0, GL_RGBA, GL_UNSIGNED_BYTE, fImage);
	232
	233	}
	234
	235	/**************************************************************************/
	236	// Data display
	237	/**************************************************************************/
	238
426530cc	239	void TPCSector2DGL::DisplayTexture(const TPCSectorData::SegmentInfo& seg,
426530cc	240	Int_t startCol, Int_t startRow) const
915dabe1	241	{
426530cc	242	Float_t w = seg.GetNMaxPads()*seg.GetPadWidth()/2;
	243	Float_t y1 = seg.GetRLow();
	244	Float_t y2 = y1 + seg.GetNRows()*seg.GetPadHeight();
	245
915dabe1	246	Float_t u1 = (Float_t) startCol / fgkTextureWidth;
915dabe1	247	Float_t v1 = (Float_t) startRow / fgkTextureHeight;
426530cc	248	Float_t u2 = u1 + (Float_t) seg.GetNMaxPads() / fgkTextureWidth;
426530cc	249	Float_t v2 = v1 + (Float_t) seg.GetNRows() / fgkTextureHeight;
915dabe1	250
915dabe1	251	glBegin(GL_QUADS);
426530cc	252	glTexCoord2f(u1, v1); glVertex2f(-w, y1);
	253	glTexCoord2f(u1, v2); glVertex2f(-w, y2);
	254	glTexCoord2f(u2, v2); glVertex2f( w, y2);
	255	glTexCoord2f(u2, v1); glVertex2f( w, y1);
915dabe1	256	glEnd();
	257	}
	258
	259	/**************************************************************************/
	260
426530cc	261	void TPCSector2DGL::DisplayQuads(const TPCSectorData::SegmentInfo& seg,
426530cc	262	Int_t startCol, Int_t startRow) const
915dabe1	263	{
915dabe1	264	Float_t y_d, y_u;
915dabe1	265	Float_t x_off, x;
426530cc	266	Float_t padW = seg.GetPadWidth();
426530cc	267	Float_t padH = seg.GetPadHeight();
915dabe1	268
915dabe1	269	glBegin(GL_QUADS);
426530cc	270	for (Int_t row=0; row<seg.GetNRows(); row++) {
426530cc	271	y_d = seg.GetRLow() + row*padH;
915dabe1	272	y_u = y_d + padH;
426530cc	273	x_off = -seg.GetNMaxPads()*padW/2;
	274	Int_t tpcRow = row + seg.GetFirstRow();
	275	Int_t deltaPad = (seg.GetNMaxPads() - TPCSectorData::GetNPadsInRow(tpcRow))/2;
	276	Int_t maxPad = seg.GetNMaxPads() - deltaPad;
	277	UChar_t *pix = GetRowCol(row + startRow, startCol + deltaPad);
	278	for (Int_t pad=deltaPad; pad<maxPad; pad++, pix+=4) {
915dabe1	279	x = x_off + pad*padW;
	280	if (pix[3] != 0) {
	281	glColor4ubv(pix);
	282	glVertex2f(x+padW, y_d);
	283	glVertex2f(x, y_d);
	284	glVertex2f(x, y_u);
	285	glVertex2f(x+padW, y_u);
	286	}
	287	}
	288	}
	289	glEnd();
	290	}
	291
426530cc	292	void TPCSector2DGL::DisplayNamedQuads(const TPCSectorData::SegmentInfo& seg,
	293	Int_t startCol, Int_t startRow) const
	294	{
	295	Float_t y_d, y_u;
	296	Float_t x_off, x;
	297	Float_t padW = seg.GetPadWidth();
	298	Float_t padH = seg.GetPadHeight();
	299
	300	glPushName(0);
	301	for (Int_t row=0; row<seg.GetNRows(); row++) {
	302	y_d = seg.GetRLow() + row*padH;
	303	y_u = y_d + padH;
	304	x_off = -seg.GetNMaxPads()*padW/2;
	305	Int_t tpcRow = row + seg.GetFirstRow();
	306	glLoadName(tpcRow);
	307	Int_t deltaPad = (seg.GetNMaxPads() - TPCSectorData::GetNPadsInRow(tpcRow))/2;
	308	Int_t maxPad = seg.GetNMaxPads() - deltaPad;
	309	UChar_t *pix = GetRowCol(row + startRow, startCol + deltaPad);
	310	glPushName(0);
	311	for (Int_t pad=deltaPad; pad<maxPad; pad++, pix+=4) {
	312	x = x_off + pad*padW;
a8600b56	313	if (pix[3] != 0 \|\| fSector->fPickEmpty) {
426530cc	314	glLoadName(pad - deltaPad);
	315	glBegin(GL_QUADS);
	316	glVertex2f(x+padW, y_d);
	317	glVertex2f(x, y_d);
	318	glVertex2f(x, y_u);
	319	glVertex2f(x+padW, y_u);
	320	glEnd();
	321	}
	322	}
	323	glPopName();
	324	}
	325	glPopName();
	326	}
	327
915dabe1	328	/**************************************************************************/
	329	// Frame drawing
	330	/**************************************************************************/
	331
	332	void TPCSector2DGL::TraceStepsUp(const TPCSectorData::SegmentInfo& s)
	333	{
	334	Float_t x = -(s.GetNMaxPads()1.0/2 - s.GetNYSteps())s.GetPadWidth();
	335	Float_t y = s.GetRLow();
	336	glVertex2f(x, y);
	337	for (Int_t i=0; i<s.GetNYSteps(); ++i) {
	338	y = s.GetYStep(i);
	339	glVertex2f(x, y);
	340	x -= s.GetPadWidth();
	341	glVertex2f(x, y);
	342	}
	343	y = s.GetRLow() + s.GetNRows()*s.GetPadHeight();
	344	glVertex2f(-s.GetNMaxPads()*s.GetPadWidth()/2, y);
	345	}
	346
	347	void TPCSector2DGL::TraceStepsDown(const TPCSectorData::SegmentInfo& s)
	348	{
	349	Float_t x = s.GetNMaxPads()*s.GetPadWidth()/2;
	350	Float_t y = s.GetRLow() + s.GetNRows()*s.GetPadHeight();
	351	glVertex2f(x, y);
	352	for (Int_t i=s.GetNYSteps() - 1; i>=0; --i) {
	353	y = s.GetYStep(i);
	354	glVertex2f(x, y);
	355	x -= s.GetPadWidth();
	356	glVertex2f(x, y);
	357	}
	358	y = s.GetRLow();
	359	glVertex2f((0.5s.GetNMaxPads() - s.GetNYSteps())s.GetPadWidth(), y);
	360	}
	361
	362	void TPCSector2DGL::DisplayFrame() const
	363	{
092578a7	364	UChar_t col[4];
84aff7a4	365	TEveUtil::ColorFromIdx(fSector->fFrameColor, col);
092578a7	366	glColor4ubv(col);
915dabe1	367
b56d8877	368	if(fSector->fRnrInn) {
	369	glBegin(GL_POLYGON);
	370	TraceStepsUp (TPCSectorData::GetInnSeg());
	371	TraceStepsDown(TPCSectorData::GetInnSeg());
	372	glEnd();
	373	}
	374	if(fSector->fRnrOut1) {
	375	glBegin(GL_POLYGON);
	376	TraceStepsUp (TPCSectorData::GetOut1Seg());
	377	TraceStepsDown(TPCSectorData::GetOut1Seg());
	378	glEnd();
	379	}
	380	if(fSector->fRnrOut2) {
	381	glBegin(GL_POLYGON);
	382	TraceStepsUp (TPCSectorData::GetOut2Seg());
	383	TraceStepsDown(TPCSectorData::GetOut2Seg());
	384	glEnd();
	385	}
915dabe1	386	}