[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 Reve;
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];
  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
	11	using namespace Reve;
	12	using namespace Alieve;
	13	using namespace std;
	14
68084553	15	//______________________________________________________________________
	16	// TPCSector2DGL
	17	//
	18
	19	ClassImp(TPCSector2DGL)
	20
	21	// This can be optimized to non-pow-2 values once everybody has GL 1.4.
915dabe1	22
	23	const Int_t TPCSector2DGL::fgkTextureWidth = 256;
	24	const Int_t TPCSector2DGL::fgkTextureHeight = 128;
	25	const Int_t TPCSector2DGL::fgkTextureByteSize = 4256128;
	26
	27	/**************************************************************************/
	28
265ecb21	29	TPCSector2DGL::TPCSector2DGL() :
	30	TGLObject(),
	31
	32	fSector (0),
	33	fSectorData (0),
	34
	35	fImage (0),
	36	fTexture (0),
	37	fRTS (0)
	38	{}
915dabe1	39
	40	TPCSector2DGL::~TPCSector2DGL()
	41	{
	42	if(fImage) delete fImage;
	43	if(fTexture) glDeleteTextures(1, &fTexture);
	44	}
	45
	46	/**************************************************************************/
	47
19208112	48	Bool_t TPCSector2DGL::SetModel(TObject* obj, const Option_t* /opt/)
915dabe1	49	{
426530cc	50	if(SetModelCheckClass(obj, Alieve::TPCSector2D::Class())) {
915dabe1	51	fSector = (TPCSector2D*) fExternalObj;
891e4bb4	52	return kTRUE;
915dabe1	53	}
891e4bb4	54	return kFALSE;
915dabe1	55	}
	56
	57	void TPCSector2DGL::SetBBox()
	58	{
606c4ed7	59	SetAxisAlignedBBox(((TPCSector2D*)fExternalObj)->AssertBBox());
915dabe1	60	}
	61
	62	/**************************************************************************/
	63
19208112	64	void TPCSector2DGL::ProcessSelection(TGLRnrCtx & /rnrCtx/,
19208112	65	TGLSelectRecord & rec)
a8600b56	66	{
19208112	67	if (rec.GetN() != 3) return;
	68	Int_t row = rec.GetItem(1);
	69	Int_t pad = rec.GetItem(2);
96ff1952	70	if (row < 0 \|\| row >= TPCSectorData::GetNAllRows()) return;
a8600b56	71	if (pad < 0 \|\| pad >= TPCSectorData::GetNPadsInRow(row)) return;
96ff1952	72	fSector->PadSelected(row, pad);
a8600b56	73	}
	74
	75	/**************************************************************************/
	76
19208112	77	void TPCSector2DGL::DirectDraw(TGLRnrCtx& rnrCtx) const
915dabe1	78	{
	79	// Actual GL drawing.
	80
	81	// printf("TPCSector2DGL::DirectDraw \n");
	82
fa3a3795	83	fSectorData = fSector->GetSectorData();
915dabe1	84
	85	if(fRTS < fSector->fRTS && fSectorData != 0) {
	86	CreateTexture();
	87	fRTS = fSector->fRTS;
	88	}
	89
	90	glPushAttrib(GL_CURRENT_BIT \| GL_DEPTH_BUFFER_BIT \|
	91	GL_COLOR_BUFFER_BIT \| GL_ENABLE_BIT \| GL_POLYGON_BIT);
	92
	93	glDisable(GL_LIGHTING);
	94	glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
	95	glEnable(GL_COLOR_MATERIAL);
	96	glDisable(GL_CULL_FACE);
	97
	98	// Display digits
	99	if(fSectorData != 0) {
	100
	101	const TPCSectorData::SegmentInfo& iSeg = TPCSectorData::GetInnSeg();
	102	const TPCSectorData::SegmentInfo& o1Seg = TPCSectorData::GetOut1Seg();
	103	const TPCSectorData::SegmentInfo& o2Seg = TPCSectorData::GetOut2Seg();
	104
19208112	105	if(rnrCtx.SecSelection()) {
426530cc	106
	107	if(fSector->fRnrInn) DisplayNamedQuads(iSeg, 0, 0);
	108	if(fSector->fRnrOut1) DisplayNamedQuads(o1Seg, iSeg.GetNMaxPads(), 0);
	109	if(fSector->fRnrOut2) DisplayNamedQuads(o2Seg, 0, o1Seg.GetNRows());
	110
b56d8877	111	} else {
426530cc	112
	113	if(fSector->fUseTexture) {
	114	//texture
	115	glEnable(GL_BLEND);
	116	glDepthMask(GL_FALSE);
	117	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	118
	119	glPolygonOffset(2,2);
	120	glEnable(GL_POLYGON_OFFSET_FILL);
	121
	122	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
	123	glBindTexture(GL_TEXTURE_2D, fTexture);
	124	glEnable(GL_TEXTURE_2D);
	125
	126	if(fSector->fRnrInn) DisplayTexture(iSeg, 0, 0);
	127	if(fSector->fRnrOut1) DisplayTexture(o1Seg, iSeg.GetNMaxPads(), 0);
	128	if(fSector->fRnrOut2) DisplayTexture(o2Seg, 0, o1Seg.GetNRows());
	129
	130	glDisable(GL_TEXTURE_2D);
	131	} else {
	132	if(fSector->fRnrInn) DisplayQuads(iSeg, 0, 0);
	133	if(fSector->fRnrOut1) DisplayQuads(o1Seg, iSeg.GetNMaxPads(), 0);
	134	if(fSector->fRnrOut2) DisplayQuads(o2Seg, 0, o1Seg.GetNRows());
	135	}
	136	glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
	137	DisplayFrame();
915dabe1	138	}
915dabe1	139
426530cc	140	}
915dabe1	141
	142	glPopAttrib();
	143	}
	144
	145	/**************************************************************************/
	146	// Data import
	147	/**************************************************************************/
	148
	149	void TPCSector2DGL::LoadPadrow(TPCSectorData::RowIterator& iter,
	150	Int_t row, Int_t col_off) const
	151	{
b56d8877	152	Int_t padVal;
915dabe1	153	Int_t time, val;
915dabe1	154
b56d8877	155	Int_t minTime = fSector->fMinTime;
	156	Int_t maxTime = fSector->fMaxTime;
	157	Bool_t halfBorderTime = ((maxTime - minTime) % 2 == 0);
915dabe1	158
	159	UChar_t* img_pos = GetRowCol(row, col_off);
	160	while (iter.NextPad()) {
b56d8877	161	padVal = 0;
915dabe1	162
	163	while (iter.Next()) {
	164	time = iter.Time();
	165	val = iter.Signal();
	166
b56d8877	167	if(time < minTime \|\| time > maxTime)
	168	continue;
	169
915dabe1	170	if(fSector->fShowMax) {
b56d8877	171	if(val > padVal) {
b56d8877	172	padVal = val;
915dabe1	173	}
915dabe1	174	} else {
b56d8877	175	if(halfBorderTime && (time == minTime \|\| time == maxTime))
	176	padVal += val/2;
	177	else
	178	padVal += val;
915dabe1	179	}
	180	}
	181
b56d8877	182	if(fSector->fShowMax == kFALSE && fSector->fAverage) {
	183	padVal = (Int_t)((Float_t)padVal / (maxTime - minTime));
	184	}
	185	padVal = TMath::Min(padVal, fSector->fMaxVal);
	186	if(padVal > fSector->fThreshold)
891e4bb4	187	fSector->ColorFromArray(padVal, img_pos);
915dabe1	188	img_pos += 4;
	189	}
	190	}
	191
	192	/**************************************************************************/
	193
	194	void TPCSector2DGL::CreateTexture() const
	195	{
	196	if (fImage == 0 ) {
	197	fImage = new UChar_t[fgkTextureByteSize];
	198	glGenTextures(1, &fTexture);
	199	}
	200	memset(fImage, 0, fgkTextureByteSize);
	201
	202	Int_t rowOff[3], colOff[3];
b56d8877	203	Bool_t isOn[3];
	204	rowOff[0] = 0;
	205	rowOff[1] = rowOff[2] = -TPCSectorData::GetSeg(1).GetFirstRow();
	206	colOff[0] = colOff[2] = 0;
092578a7	207	colOff[1] = TPCSectorData::GetSeg(0).GetNMaxPads();
b56d8877	208	isOn[0] = fSector->fRnrInn;
	209	isOn[1] = fSector->fRnrOut1;
	210	isOn[2] = fSector->fRnrOut2;
915dabe1	211
891e4bb4	212	fSector->SetupColorArray();
891e4bb4	213
915dabe1	214	// Loop over 3 main segments
915dabe1	215	for (Int_t sId = 0; sId <= 2; ++sId) {
b56d8877	216	if(isOn[sId] == kFALSE)
b56d8877	217	continue;
915dabe1	218	const TPCSectorData::SegmentInfo& sInfo = TPCSectorData::GetSeg(sId);
	219	for (Int_t row=sInfo.GetFirstRow(); row<=sInfo.GetLastRow(); ++row) {
	220	TPCSectorData::RowIterator i = fSectorData->MakeRowIterator(row);
	221	Int_t offset = (sInfo.GetNMaxPads() - TPCSectorData::GetNPadsInRow(row))/2;
	222	LoadPadrow(i, row + rowOff[sId], offset + colOff[sId]);
	223	}
	224	}
	225
	226	glBindTexture (GL_TEXTURE_2D, fTexture);
	227	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,GL_REPEAT);
	228	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,GL_REPEAT);
	229	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	230	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
426530cc	231	glTexEnvf (GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE, GL_REPLACE);
915dabe1	232	glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, fgkTextureWidth, fgkTextureHeight,
	233	0, GL_RGBA, GL_UNSIGNED_BYTE, fImage);
	234
	235	}
	236
	237	/**************************************************************************/
	238	// Data display
	239	/**************************************************************************/
	240
426530cc	241	void TPCSector2DGL::DisplayTexture(const TPCSectorData::SegmentInfo& seg,
426530cc	242	Int_t startCol, Int_t startRow) const
915dabe1	243	{
426530cc	244	Float_t w = seg.GetNMaxPads()*seg.GetPadWidth()/2;
	245	Float_t y1 = seg.GetRLow();
	246	Float_t y2 = y1 + seg.GetNRows()*seg.GetPadHeight();
	247
915dabe1	248	Float_t u1 = (Float_t) startCol / fgkTextureWidth;
915dabe1	249	Float_t v1 = (Float_t) startRow / fgkTextureHeight;
426530cc	250	Float_t u2 = u1 + (Float_t) seg.GetNMaxPads() / fgkTextureWidth;
426530cc	251	Float_t v2 = v1 + (Float_t) seg.GetNRows() / fgkTextureHeight;
915dabe1	252
915dabe1	253	glBegin(GL_QUADS);
426530cc	254	glTexCoord2f(u1, v1); glVertex2f(-w, y1);
	255	glTexCoord2f(u1, v2); glVertex2f(-w, y2);
	256	glTexCoord2f(u2, v2); glVertex2f( w, y2);
	257	glTexCoord2f(u2, v1); glVertex2f( w, y1);
915dabe1	258	glEnd();
	259	}
	260
	261	/**************************************************************************/
	262
426530cc	263	void TPCSector2DGL::DisplayQuads(const TPCSectorData::SegmentInfo& seg,
426530cc	264	Int_t startCol, Int_t startRow) const
915dabe1	265	{
915dabe1	266	Float_t y_d, y_u;
915dabe1	267	Float_t x_off, x;
426530cc	268	Float_t padW = seg.GetPadWidth();
426530cc	269	Float_t padH = seg.GetPadHeight();
915dabe1	270
915dabe1	271	glBegin(GL_QUADS);
426530cc	272	for (Int_t row=0; row<seg.GetNRows(); row++) {
426530cc	273	y_d = seg.GetRLow() + row*padH;
915dabe1	274	y_u = y_d + padH;
426530cc	275	x_off = -seg.GetNMaxPads()*padW/2;
	276	Int_t tpcRow = row + seg.GetFirstRow();
	277	Int_t deltaPad = (seg.GetNMaxPads() - TPCSectorData::GetNPadsInRow(tpcRow))/2;
	278	Int_t maxPad = seg.GetNMaxPads() - deltaPad;
	279	UChar_t *pix = GetRowCol(row + startRow, startCol + deltaPad);
	280	for (Int_t pad=deltaPad; pad<maxPad; pad++, pix+=4) {
915dabe1	281	x = x_off + pad*padW;
	282	if (pix[3] != 0) {
	283	glColor4ubv(pix);
	284	glVertex2f(x+padW, y_d);
	285	glVertex2f(x, y_d);
	286	glVertex2f(x, y_u);
	287	glVertex2f(x+padW, y_u);
	288	}
	289	}
	290	}
	291	glEnd();
	292	}
	293
426530cc	294	void TPCSector2DGL::DisplayNamedQuads(const TPCSectorData::SegmentInfo& seg,
	295	Int_t startCol, Int_t startRow) const
	296	{
	297	Float_t y_d, y_u;
	298	Float_t x_off, x;
	299	Float_t padW = seg.GetPadWidth();
	300	Float_t padH = seg.GetPadHeight();
	301
	302	glPushName(0);
	303	for (Int_t row=0; row<seg.GetNRows(); row++) {
	304	y_d = seg.GetRLow() + row*padH;
	305	y_u = y_d + padH;
	306	x_off = -seg.GetNMaxPads()*padW/2;
	307	Int_t tpcRow = row + seg.GetFirstRow();
	308	glLoadName(tpcRow);
	309	Int_t deltaPad = (seg.GetNMaxPads() - TPCSectorData::GetNPadsInRow(tpcRow))/2;
	310	Int_t maxPad = seg.GetNMaxPads() - deltaPad;
	311	UChar_t *pix = GetRowCol(row + startRow, startCol + deltaPad);
	312	glPushName(0);
	313	for (Int_t pad=deltaPad; pad<maxPad; pad++, pix+=4) {
	314	x = x_off + pad*padW;
a8600b56	315	if (pix[3] != 0 \|\| fSector->fPickEmpty) {
426530cc	316	glLoadName(pad - deltaPad);
	317	glBegin(GL_QUADS);
	318	glVertex2f(x+padW, y_d);
	319	glVertex2f(x, y_d);
	320	glVertex2f(x, y_u);
	321	glVertex2f(x+padW, y_u);
	322	glEnd();
	323	}
	324	}
	325	glPopName();
	326	}
	327	glPopName();
	328	}
	329
915dabe1	330	/**************************************************************************/
	331	// Frame drawing
	332	/**************************************************************************/
	333
	334	void TPCSector2DGL::TraceStepsUp(const TPCSectorData::SegmentInfo& s)
	335	{
	336	Float_t x = -(s.GetNMaxPads()1.0/2 - s.GetNYSteps())s.GetPadWidth();
	337	Float_t y = s.GetRLow();
	338	glVertex2f(x, y);
	339	for (Int_t i=0; i<s.GetNYSteps(); ++i) {
	340	y = s.GetYStep(i);
	341	glVertex2f(x, y);
	342	x -= s.GetPadWidth();
	343	glVertex2f(x, y);
	344	}
	345	y = s.GetRLow() + s.GetNRows()*s.GetPadHeight();
	346	glVertex2f(-s.GetNMaxPads()*s.GetPadWidth()/2, y);
	347	}
	348
	349	void TPCSector2DGL::TraceStepsDown(const TPCSectorData::SegmentInfo& s)
	350	{
	351	Float_t x = s.GetNMaxPads()*s.GetPadWidth()/2;
	352	Float_t y = s.GetRLow() + s.GetNRows()*s.GetPadHeight();
	353	glVertex2f(x, y);
	354	for (Int_t i=s.GetNYSteps() - 1; i>=0; --i) {
	355	y = s.GetYStep(i);
	356	glVertex2f(x, y);
	357	x -= s.GetPadWidth();
	358	glVertex2f(x, y);
	359	}
	360	y = s.GetRLow();
	361	glVertex2f((0.5s.GetNMaxPads() - s.GetNYSteps())s.GetPadWidth(), y);
	362	}
	363
	364	void TPCSector2DGL::DisplayFrame() const
	365	{
092578a7	366	UChar_t col[4];
	367	ColorFromIdx(fSector->fFrameColor, col);
	368	glColor4ubv(col);
915dabe1	369
b56d8877	370	if(fSector->fRnrInn) {
	371	glBegin(GL_POLYGON);
	372	TraceStepsUp (TPCSectorData::GetInnSeg());
	373	TraceStepsDown(TPCSectorData::GetInnSeg());
	374	glEnd();
	375	}
	376	if(fSector->fRnrOut1) {
	377	glBegin(GL_POLYGON);
	378	TraceStepsUp (TPCSectorData::GetOut1Seg());
	379	TraceStepsDown(TPCSectorData::GetOut1Seg());
	380	glEnd();
	381	}
	382	if(fSector->fRnrOut2) {
	383	glBegin(GL_POLYGON);
	384	TraceStepsUp (TPCSectorData::GetOut2Seg());
	385	TraceStepsDown(TPCSectorData::GetOut2Seg());
	386	glEnd();
	387	}
915dabe1	388	}