code reformating - no functional changes

2 files changed, 443 insertions, 384 deletions

diff --git a/ttxtsubsdisplay.c b/ttxtsubsdisplay.c
index b964688..b3e5be1 100644
--- a/ttxtsubsdisplay.c
+++ b/ttxtsubsdisplay.c
@@ -37,50 +37,59 @@
 #include "utils.h"
 
 // pageState
-enum {
-  invalid = 0,
-  collecting,
-  interimshow,
-  finished
+enum
+{
+    invalid = 0,
+    collecting,
+    interimshow,
+    finished
 };
 
 // --------------------
 
-class cOSDSelfMemory {
- public:
-  cOSDSelfMemory(void) : mActive(0) {}
-  ~cOSDSelfMemory() {}
-  
-  void SetActive(int a)
+class cOSDSelfMemory
+{
+public:
+    cOSDSelfMemory(void) : mActive(0) {}
+    ~cOSDSelfMemory() {}
+
+    void SetActive(int a)
     {
-      cMutexLock lock(&mLock);
-      mActive = a;
-      if(a)
-	mThr = pthread_self();
+        cMutexLock lock(&mLock);
+        mActive = a;
+        if (a)
+            mThr = pthread_self();
     }
-  int IsMe(void)
+    int IsMe(void)
     {
-      cMutexLock lock(&mLock);
-      pthread_t thr = pthread_self();
-      if(mActive && pthread_equal(thr, mThr))
-	return 1;
-      else
-	return 0;
+        cMutexLock lock(&mLock);
+        pthread_t thr = pthread_self();
+        if (mActive && pthread_equal(thr, mThr))
+            return 1;
+        else
+            return 0;
     }
 
- private:
-  cMutex mLock;
-  int mActive;
-  pthread_t mThr;
+private:
+    cMutex mLock;
+    int mActive;
+    pthread_t mThr;
 };
 
-class cOSDSelfMemoryLock {
- public:
-  cOSDSelfMemoryLock(cOSDSelfMemory *m) : mMem(m) { mMem->SetActive(1); }
-  ~cOSDSelfMemoryLock() { mMem->SetActive(0); }
-  
- private:
-  cOSDSelfMemory *mMem;
+class cOSDSelfMemoryLock
+{
+public:
+    cOSDSelfMemoryLock(cOSDSelfMemory *m) : mMem(m)
+    {
+        mMem->SetActive(1);
+    }
+    ~cOSDSelfMemoryLock()
+    {
+        mMem->SetActive(0);
+    }
+
+private:
+    cOSDSelfMemory *mMem;
 };
 
 static cOSDSelfMemory gSelfMem;
@@ -88,411 +97,460 @@ static cOSDSelfMemory gSelfMem;
 // --------------------
 
 cTtxtSubsDisplay::cTtxtSubsDisplay(void)
-  :
-  mPageState(invalid),
-  mMag(0),
-  mNo(0),
-  mDoDisplay(1),
-  mOsd(NULL),
-  mOsdLock(),
-  mLastDataTime(NULL)
+        :
+        mPageState(invalid),
+        mMag(0),
+        mNo(0),
+        mDoDisplay(1),
+        mOsd(NULL),
+        mOsdLock(),
+        mLastDataTime(NULL)
 {
-  memset(&page.data, 0, sizeof(page.data));
-  mLastDataTime = (struct timeval *) calloc(1, sizeof(*mLastDataTime));
-  mOsdFont = cFont::CreateFont(Setup.FontOsd, globals.mFontSize);
-  if (!mOsdFont || !mOsdFont->Height())
-     mOsdFont = cFont::GetFont(fontOsd);
+    memset(&page.data, 0, sizeof(page.data));
+    mLastDataTime = (struct timeval *) calloc(1, sizeof(*mLastDataTime));
+    mOsdFont = cFont::CreateFont(Setup.FontOsd, globals.mFontSize);
+    if (!mOsdFont || !mOsdFont->Height())
+        mOsdFont = cFont::GetFont(fontOsd);
 }
 
 
 cTtxtSubsDisplay::~cTtxtSubsDisplay(void)
 {
-  free(mLastDataTime);
-  delete mOsd;
-  if(mOsdFont && (mOsdFont != cFont::GetFont(fontOsd)))
-    delete mOsdFont;
+    free(mLastDataTime);
+    delete mOsd;
+    if (mOsdFont && (mOsdFont != cFont::GetFont(fontOsd)))
+        delete mOsdFont;
 }
 
 
 void cTtxtSubsDisplay::SetPage(int Pageno)  // Pageno is 0x000 to 0x799
 {
-  mMag = (Pageno >> 8) & 0xF;
-  mNo = Pageno & 0xFF;
+    mMag = (Pageno >> 8) & 0xF;
+    mNo = Pageno & 0xFF;
 
-  Clear();
+    Clear();
 }
 
 
 void cTtxtSubsDisplay::Hide(void)
 {
-  if(gSelfMem.IsMe()) {
-    //dprint("cTtxtSubsDisplay::Hide - Ignoring self induced hide!\n");
-    return;
-  }
-
-  //dprint("cTtxtSubsDisplay::Hide\n");
-  cMutexLock lock(&mOsdLock);
-  mDoDisplay = 0;
-  ClearOSD();
+    if (gSelfMem.IsMe())
+    {
+        //dprint("cTtxtSubsDisplay::Hide - Ignoring self induced hide!\n");
+        return;
+    }
+
+    //dprint("cTtxtSubsDisplay::Hide\n");
+    cMutexLock lock(&mOsdLock);
+    mDoDisplay = 0;
+    ClearOSD();
 }
 
 
 void cTtxtSubsDisplay::Show(void)
 {
-  if(gSelfMem.IsMe()) {
-    //dprint("cTtxtSubsDisplay::Show - Ignoring self induced show!\n");
-    return;
-  }
-
-  //dprint("cTtxtSubsDisplay::Show\n");
-  cMutexLock lock(&mOsdLock);
-  mDoDisplay = 1;
-  ShowOSD();
+    if (gSelfMem.IsMe())
+    {
+        //dprint("cTtxtSubsDisplay::Show - Ignoring self induced show!\n");
+        return;
+    }
+
+    //dprint("cTtxtSubsDisplay::Show\n");
+    cMutexLock lock(&mOsdLock);
+    mDoDisplay = 1;
+    ShowOSD();
 }
 
 
 void cTtxtSubsDisplay::Clear(void)
 {
-  mPageState = invalid;
-  ClearOSD();
+    mPageState = invalid;
+    ClearOSD();
 }
 
 
 void cTtxtSubsDisplay::TtxtData(const uint8_t *Data, uint64_t sched_time)
 {
-  int mp;
-  int mag; // X in ETSI EN 300 706
-  int packet; // Y
-  struct ttxt_data_field *d;
-
-  // idle time - if we have been sitting on a half finished page for a while - show it
-  if(Data == NULL && mPageState == collecting) {
-    struct timeval tv;
-    gettimeofday(&tv, NULL);
-    // add second diff to usecs
-    tv.tv_usec += 1000000 * (tv.tv_sec - mLastDataTime->tv_sec);
-
-    if((tv.tv_usec - mLastDataTime->tv_usec) > 500000) {
-      //dprint("Interimshow!\n");
-      mPageState = interimshow;
-      ClearOSD();
-      ShowOSD();
-    }
-  }
+    int mp;
+    int mag; // X in ETSI EN 300 706
+    int packet; // Y
+    struct ttxt_data_field *d;
 
-  if(Data == NULL)
-    return;
+    // idle time - if we have been sitting on a half finished page for a while - show it
+    if (Data == NULL && mPageState == collecting)
+    {
+        struct timeval tv;
+        gettimeofday(&tv, NULL);
+        // add second diff to usecs
+        tv.tv_usec += 1000000 * (tv.tv_sec - mLastDataTime->tv_sec);
+
+        if ((tv.tv_usec - mLastDataTime->tv_usec) > 500000)
+        {
+            //dprint("Interimshow!\n");
+            mPageState = interimshow;
+            ClearOSD();
+            ShowOSD();
+        }
+    }
 
-  d = (struct ttxt_data_field *) Data;
+    if (Data == NULL)
+        return;
 
-  mp = unham(invtab[d->mag_addr_ham[0]], invtab[d->mag_addr_ham[1]]);
-  mag = mp & 0x7;
-  packet = (mp >> 3) & 0x1f;
+    d = (struct ttxt_data_field *) Data;
 
-  //dprint("cTtxtSubsDisplay::TtxtData: mag:%d packet: %d\n", mag, packet); // XXX
+    mp = unham(invtab[d->mag_addr_ham[0]], invtab[d->mag_addr_ham[1]]);
+    mag = mp & 0x7;
+    packet = (mp >> 3) & 0x1f;
 
-  if(packet == 0) {
-    int i, no;
-    uint8_t fi[8]; // flags field inverted
+    //dprint("cTtxtSubsDisplay::TtxtData: mag:%d packet: %d\n", mag, packet); // XXX
 
-    for(i = 0; i < 8; i++)
-      fi[i] = invtab[d->data[i]];
+    if (packet == 0)
+    {
+        int i, no;
+        uint8_t fi[8]; // flags field inverted
+
+        for (i = 0; i < 8; i++)
+            fi[i] = invtab[d->data[i]];
+
+        if (mag == mMag)  /* XXX: && ! magazine_serial */
+        {
+            if (mPageState == collecting)
+            {
+                mPageState = finished;
+                ClearOSD();
+                ShowOSD();
+            }
+            if (mPageState == interimshow)
+                mPageState = finished;
+        }
 
-    if(mag == mMag) { /* XXX: && ! magazine_serial */
-      if(mPageState == collecting) {
-	mPageState = finished;
-	ClearOSD();
-	ShowOSD();
-      }
-      if(mPageState == interimshow)
-	mPageState = finished;
+        no = unham(fi[0], fi[1]);
+
+        //dprint("cTtxtSubsDisplay::TtxtData: page:%d%02x, packet: %d\n", mag, no, packet); // XXX
+
+        if (mag == mMag && no == mNo)
+        {
+            //dprint("cTtxtSubsDisplay::TtxtData: page:%d%02x, packet: %d\n", mag, no, packet); // XXX
+            page.mag = mag;
+            page.no = no;
+            page.flags = 0;
+            page.national_charset = 0;
+
+            if (fi[3] & 0x80)  // Erase Page
+            {
+                page.flags |= erasepage;
+                memset(&page.data, 0, sizeof(page.data)); // only if erasepage is set?
+            }
+            if (fi[5] & 0x20) // Newsflash
+                page.flags |= newsflash;
+            if (fi[5] & 0x80) // Subtitle
+                page.flags |= subtitle;
+            if (fi[6] & 0x02) // Suppress Header
+                page.flags |= suppress_header;
+            // if(fi[6] & 0x08) // Update Indicator
+            // if(fi[6] & 0x20) // Interrupted Sequence
+            if (fi[6] & 0x80) // Inhibit Display
+                page.flags |= inhibit_display;
+            // if(fi[7] & 0x02) // Magazine Serial
+
+            page.national_charset = ((fi[7] & 0x80) >> 7) +
+                                    ((fi[7] & 0x20) >> 4) + ((fi[7] & 0x08) >> 1);
+
+            if (mPageState != collecting)
+            {
+                int diff = sched_time - cTimeMs::Now();
+                //printf("Got sched_time %llx, diff %d\n", sched_time, diff);
+                if (diff > 10) cCondWait::SleepMs(diff);
+            }
+
+            mPageState = collecting;
+            gettimeofday(mLastDataTime, NULL);
+
+            for (i = 0; i < 32; i++)
+                page.data[0][i] = invtab[d->data[i+8]];
+        }
     }
+    else if (mag == page.mag && packet < TTXT_DISPLAYABLE_ROWS &&
+             (mPageState == collecting || mPageState == interimshow))
+    {
+        // mag == page.mag: The magazines can be sent interleaved
+        int i;
+        for (i = 0; i < 40; i++)
+            page.data[packet][i] = invtab[d->data[i]];
+
+        mPageState = collecting;
+        gettimeofday(mLastDataTime, NULL);
 
-    no = unham(fi[0], fi[1]);
-
-    //dprint("cTtxtSubsDisplay::TtxtData: page:%d%02x, packet: %d\n", mag, no, packet); // XXX
-
-    if(mag == mMag && no == mNo) {
-      //dprint("cTtxtSubsDisplay::TtxtData: page:%d%02x, packet: %d\n", mag, no, packet); // XXX
-      page.mag = mag;
-      page.no = no;
-      page.flags = 0;
-      page.national_charset = 0;
-      
-      if(fi[3] & 0x80) { // Erase Page
-	page.flags |= erasepage;
-	memset(&page.data, 0, sizeof(page.data)); // only if erasepage is set?
-      }
-      if(fi[5] & 0x20) // Newsflash
-	page.flags |= newsflash;
-      if(fi[5] & 0x80) // Subtitle
-	page.flags |= subtitle;
-      if(fi[6] & 0x02) // Suppress Header
-	page.flags |= suppress_header;
-      // if(fi[6] & 0x08) // Update Indicator
-      // if(fi[6] & 0x20) // Interrupted Sequence
-      if(fi[6] & 0x80) // Inhibit Display
-	page.flags |= inhibit_display;
-      // if(fi[7] & 0x02) // Magazine Serial
-      
-      page.national_charset = ((fi[7] & 0x80) >> 7) +
-	((fi[7] & 0x20) >> 4) + ((fi[7] & 0x08) >> 1);
-      
-      if(mPageState != collecting) {
-        int diff = sched_time - cTimeMs::Now();
-        //printf("Got sched_time %llx, diff %d\n", sched_time, diff);
-        if (diff > 10) cCondWait::SleepMs(diff);
-      }
-
-      mPageState = collecting;
-      gettimeofday(mLastDataTime, NULL);
-
-      for(i = 0; i < 32; i++)
-	page.data[0][i] = invtab[d->data[i+8]];
+        //dprint("row: %d ", packet);
     }
-  } else if(mag == page.mag && packet < TTXT_DISPLAYABLE_ROWS && 
-	    (mPageState == collecting || mPageState == interimshow)) {
-    // mag == page.mag: The magazines can be sent interleaved
-    int i;
-    for(i = 0; i < 40; i++)
-      page.data[packet][i] = invtab[d->data[i]];
-
-    mPageState = collecting;
-    gettimeofday(mLastDataTime, NULL);
-
-    //dprint("row: %d ", packet);
-  } else {
-    // packets with national characters information: X/28/0 format 1, X/28/1, X/28/4, M/29/0 M/29/4, 
-    if(packet == 28 || packet == 29) {
-      //dprint("mag: %d, packet: %d, page: %02x, state: %d\n", page.mag, packet, page.no, mPageState);
+    else
+    {
+        // packets with national characters information: X/28/0 format 1, X/28/1, X/28/4, M/29/0 M/29/4,
+        if (packet == 28 || packet == 29)
+        {
+            //dprint("mag: %d, packet: %d, page: %02x, state: %d\n", page.mag, packet, page.no, mPageState);
+        }
+
+        //if(packet == 26) {
+        //  dprint("mag: %d, packet: %d, page: %02x, state: %d\n", page.mag, packet, page.no, mPageState);
+        //}
     }
-    
-    //if(packet == 26) {
-    //  dprint("mag: %d, packet: %d, page: %02x, state: %d\n", page.mag, packet, page.no, mPageState);
-    //}
-  }
 }
 
 
 static char *
 ttxt2la1(uint8_t *p, char *buf, int natopts)
 {
-  int i, j = 0, skip = 1;
-  for(i = 0; i < 40; i++) {
-    uint8_t c = p[i] & 0x7f;
-
-    if(c == 0x0b) { // box begin
-      skip = 0;
-      if(j != 0) // if we have chars in buf
-	buf[j++] = ' ';
-      continue;
-    }
+    int i, j = 0, skip = 1;
+    for (i = 0; i < 40; i++)
+    {
+        uint8_t c = p[i] & 0x7f;
+
+        if (c == 0x0b)  // box begin
+        {
+            skip = 0;
+            if (j != 0) // if we have chars in buf
+                buf[j++] = ' ';
+            continue;
+        }
 
-    if(c == 0x0a) { // box end
-      skip = 1;
-      continue;
-    }
+        if (c == 0x0a)  // box end
+        {
+            skip = 1;
+            continue;
+        }
+
+        if (skip)
+            continue;
 
-    if(skip)
-      continue;
-    
-    if(j == 0 && c == 20) // skip leading spaces
-      continue;
-
-    if(c >= 0x20) {
-      uint16_t aux = ttxt_laG0_la1_char(0, natopts, c);
-      if (aux & 0xff00)
-         buf[j++] = (aux & 0xff00) >> 8;
-      buf[j++] = aux & 0x00ff;
+        if (j == 0 && c == 20) // skip leading spaces
+            continue;
+
+        if (c >= 0x20)
+        {
+            uint16_t aux = ttxt_laG0_la1_char(0, natopts, c);
+            if (aux & 0xff00)
+                buf[j++] = (aux & 0xff00) >> 8;
+            buf[j++] = aux & 0x00ff;
+        }
     }
-  }
 
-  while(j > 0 && buf[j-1] == ' ') // strip extra spaces
-    j--;
+    while (j > 0 && buf[j-1] == ' ') // strip extra spaces
+        j--;
 
-  buf[j++] = '\0';
-  if(strlen(buf))
-    return buf;
-  else
-    return NULL;
+    buf[j++] = '\0';
+    if (strlen(buf))
+        return buf;
+    else
+        return NULL;
 }
 
-enum {
-  SCREENLEFT = 0,
-  SCREENRIGHT = 719,
-  SCREENTOP = 150,
-  SCREENBOTTOM = 575,
-  
-  SIDEMARGIN = 125,
-  BOTNORM = 540,
-  BOTLETTERBOX = 482,
-
-  ROWINCR = 43,
-  ROWH = 34,
-  TEXTY = 3,
-  TEXTX = 15
+enum
+{
+    SCREENLEFT = 0,
+    SCREENRIGHT = 719,
+    SCREENTOP = 150,
+    SCREENBOTTOM = 575,
+
+    SIDEMARGIN = 125,
+    BOTNORM = 540,
+    BOTLETTERBOX = 482,
+
+    ROWINCR = 43,
+    ROWH = 34,
+    TEXTY = 3,
+    TEXTX = 15
 };
 
 static tColor
 getcolor(int color)
-{ 
-  switch (color)
+{
+    switch (color)
     {
-    case 0:  return clrBlack;
-    case 1:  return clrWhite;
-    case 2:  return clrRed;
-    case 3:  return clrGreen;
-    case 4:  return clrYellow;
-    case 5:  return clrMagenta;
-    case 6:  return clrBlue;
-    case 7:  return clrCyan;
-    case 8:  return globals.customColor();
-    case 9:  return clrTransparent;
-    default: return clrGray50;
+    case 0:
+        return clrBlack;
+    case 1:
+        return clrWhite;
+    case 2:
+        return clrRed;
+    case 3:
+        return clrGreen;
+    case 4:
+        return clrYellow;
+    case 5:
+        return clrMagenta;
+    case 6:
+        return clrBlue;
+    case 7:
+        return clrCyan;
+    case 8:
+        return globals.customColor();
+    case 9:
+        return clrTransparent;
+    default:
+        return clrGray50;
     }
-  return clrGray50;
+    return clrGray50;
 }
 
 void cTtxtSubsDisplay::ShowOSD(void)
 {
-  int i, y;
-  int rowcount = 0;
-  char buf[TTXT_DISPLAYABLE_ROWS][82];
-  int bottom = globals.bottomAdj() + (globals.bottomLB() ? BOTLETTERBOX : BOTNORM);
-  tArea areas[MAXOSDAREAS];
-  int numAreas = 0;
-
-  cOSDSelfMemoryLock selfmem(&gSelfMem);
-  cMutexLock lock(&mOsdLock);
-
-  if(!globals.mRealDoDisplay) {
-    //dprint("NOT displaying subtitles because disabled!\n");
-    return;
-  }
- 
-  if(!mDoDisplay) {
-    //dprint("NOT displaying subtitles because of other OSD activities!\n");
-    return;
-  }
-  
-  if(mPageState != interimshow && mPageState != finished) {
-    //dprint("NOT displaying subtitles because page state: %d!\n", mPageState);
-    return;
-  }
-
-  for(i = 1; i < 24; i++) {
-    if(page.data[i][0] != 0) // anything on this line?
-      if(ttxt2la1(page.data[i], buf[rowcount], page.national_charset))
-	rowcount++;
-  }
-
-  DELETENULL(mOsd);
-
-     mOsd = cOsdProvider::NewOsd(SCREENLEFT, SCREENTOP, 20); // level 20
-     if(!mOsd) {
-       //dprint("Error: cOsdProvider::NewOsd() returned NULL!\n");
-       return;
-       }
-
-  if(rowcount > MAXTTXTROWS)
-    rowcount = MAXTTXTROWS;
-  y = bottom - SCREENTOP - ROWH - ((ROWINCR + globals.lineSpacing()) * (rowcount-1));
-
-  if (Setup.AntiAlias) {
-    // create only one osd area that's big enough for all rows
-    int x1 = SCREENRIGHT+1, x2 = 0, y1 = SCREENBOTTOM+1, y2 = 0;
-    for(i = 0; i < rowcount; i++) {
-      int w = mOsdFont->Width(buf[i]) + 2 * TEXTX;
-      int left = SIDEMARGIN;
-      if(w % 4)
-        w += 4 - (w % 4);
-      switch(globals.textPos()) {
-      case 1:
-        left = (SCREENRIGHT - w) / 2;
-        break;
-      case 2:
-        left = SCREENRIGHT - SIDEMARGIN - w;
-        break;
-      }
-      if(x1 > left) 
-        x1 = left;
-      if(x2 < (left+w-1))
-        x2 = left+w-1;
-      if(y1 > y) 
-        y1 = y;
-      if(y2 < (y+ROWH-1))
-        y2 = y+ROWH-1;
-      y += (ROWINCR + globals.lineSpacing());
+    int i, y;
+    int rowcount = 0;
+    char buf[TTXT_DISPLAYABLE_ROWS][82];
+    int bottom = globals.bottomAdj() + (globals.bottomLB() ? BOTLETTERBOX : BOTNORM);
+    tArea areas[MAXOSDAREAS];
+    int numAreas = 0;
+
+    cOSDSelfMemoryLock selfmem(&gSelfMem);
+    cMutexLock lock(&mOsdLock);
+
+    if (!globals.mRealDoDisplay)
+    {
+        //dprint("NOT displaying subtitles because disabled!\n");
+        return;
     }
-    if((x1 >= x2) || (y1 >= y2)) // validate calculated area
-      return;
-    tArea area = {x1, y1, x2, y2, 8};
-    areas[numAreas++] = area;
-  } else {
-    for(i = 0; i < rowcount; i++) {
-      int w = 0;
-      int left = SIDEMARGIN;
-      w = mOsdFont->Width(buf[i]) + 2 * TEXTX;
-      if(w % 4)
-        w += 4 - (w % 4);
-      switch(globals.textPos()) {
-        case 1:
-          left = (SCREENRIGHT - w) / 2;
-          break;
-        case 2:
-          left = SCREENRIGHT - SIDEMARGIN - w;
-          break;
-        }
-      tArea area = {left, y, left+w-1, y+ROWH-1, 2};
-      areas[numAreas++] = area;
-      y += (ROWINCR + globals.lineSpacing());
+
+    if (!mDoDisplay)
+    {
+        //dprint("NOT displaying subtitles because of other OSD activities!\n");
+        return;
     }
-  }
-  if (mOsd->CanHandleAreas(areas, numAreas) != oeOk) {
-    // try lower color depth
-    if (Setup.AntiAlias) {
-      for(i = 0; i < numAreas; i++) areas[numAreas++].bpp = 2;
-      if (mOsd->CanHandleAreas(areas, numAreas) != oeOk) {
-        dprint("ttxtsubs: OSD Cannot handle areas (error code: %d) - try to enlarge the line spacing!\n", mOsd->CanHandleAreas(areas, numAreas));
+
+    if (mPageState != interimshow && mPageState != finished)
+    {
+        //dprint("NOT displaying subtitles because page state: %d!\n", mPageState);
         return;
+    }
+
+    for (i = 1; i < 24; i++)
+    {
+        if (page.data[i][0] != 0) // anything on this line?
+            if (ttxt2la1(page.data[i], buf[rowcount], page.national_charset))
+                rowcount++;
+    }
+
+    DELETENULL(mOsd);
+
+    mOsd = cOsdProvider::NewOsd(SCREENLEFT, SCREENTOP, 20); // level 20
+    if (!mOsd)
+    {
+        //dprint("Error: cOsdProvider::NewOsd() returned NULL!\n");
+        return;
+    }
+
+    if (rowcount > MAXTTXTROWS)
+        rowcount = MAXTTXTROWS;
+    y = bottom - SCREENTOP - ROWH - ((ROWINCR + globals.lineSpacing()) * (rowcount-1));
+
+    if (Setup.AntiAlias)
+    {
+        // create only one osd area that's big enough for all rows
+        int x1 = SCREENRIGHT+1, x2 = 0, y1 = SCREENBOTTOM+1, y2 = 0;
+        for (i = 0; i < rowcount; i++)
+        {
+            int w = mOsdFont->Width(buf[i]) + 2 * TEXTX;
+            int left = SIDEMARGIN;
+            if (w % 4)
+                w += 4 - (w % 4);
+            switch (globals.textPos())
+            {
+            case 1:
+                left = (SCREENRIGHT - w) / 2;
+                break;
+            case 2:
+                left = SCREENRIGHT - SIDEMARGIN - w;
+                break;
+            }
+            if (x1 > left)
+                x1 = left;
+            if (x2 < (left+w-1))
+                x2 = left+w-1;
+            if (y1 > y)
+                y1 = y;
+            if (y2 < (y+ROWH-1))
+                y2 = y+ROWH-1;
+            y += (ROWINCR + globals.lineSpacing());
+        }
+        if ((x1 >= x2) || (y1 >= y2)) // validate calculated area
+            return;
+        tArea area = {x1, y1, x2, y2, 8};
+        areas[numAreas++] = area;
+    }
+    else
+    {
+        for (i = 0; i < rowcount; i++)
+        {
+            int w = 0;
+            int left = SIDEMARGIN;
+            w = mOsdFont->Width(buf[i]) + 2 * TEXTX;
+            if (w % 4)
+                w += 4 - (w % 4);
+            switch (globals.textPos())
+            {
+            case 1:
+                left = (SCREENRIGHT - w) / 2;
+                break;
+            case 2:
+                left = SCREENRIGHT - SIDEMARGIN - w;
+                break;
+            }
+            tArea area = {left, y, left+w-1, y+ROWH-1, 2};
+            areas[numAreas++] = area;
+            y += (ROWINCR + globals.lineSpacing());
         }
-      }
     }
-  mOsd->SetAreas(areas, numAreas);
+    if (mOsd->CanHandleAreas(areas, numAreas) != oeOk)
+    {
+        // try lower color depth
+        if (Setup.AntiAlias)
+        {
+            for (i = 0; i < numAreas; i++) areas[numAreas++].bpp = 2;
+            if (mOsd->CanHandleAreas(areas, numAreas) != oeOk)
+            {
+                dprint("ttxtsubs: OSD Cannot handle areas (error code: %d) - try to enlarge the line spacing!\n", mOsd->CanHandleAreas(areas, numAreas));
+                return;
+            }
+        }
+    }
+    mOsd->SetAreas(areas, numAreas);
 
-  for (i = 0; i < numAreas; i++) {
-    mOsd->DrawRectangle(areas[i].x1, areas[i].y1, areas[i].x2, areas[i].y2, clrTransparent);
+    for (i = 0; i < numAreas; i++)
+    {
+        mOsd->DrawRectangle(areas[i].x1, areas[i].y1, areas[i].x2, areas[i].y2, clrTransparent);
     }
 
-  y = bottom - SCREENTOP - ROWH - ((ROWINCR + globals.lineSpacing()) * (rowcount-1));
-  for(i = 0; i < rowcount; i++) {
-    int w = 0;
-    int left = SIDEMARGIN;
-    w = mOsdFont->Width(buf[i]) + 2 * TEXTX;
-    if(w % 4)
-      w += 4 - (w % 4);
-    switch(globals.textPos()) {
-      case 1:
-        left = (SCREENRIGHT - w) / 2;
-        break;
-      case 2:
-        left = SCREENRIGHT - SIDEMARGIN - w;
-        break;
-      }
-    mOsd->DrawRectangle(left, y, left + w, y + ROWH, getcolor(globals.bgColor()));
-    mOsd->DrawText(left + TEXTX, y + TEXTY, buf[i], getcolor(globals.fgColor()), getcolor(globals.bgColor()), mOsdFont);
-    //dprint("%d/%d (%d,%d) (%d,%d): %s\n", i, rowcount-1, areas[i].x1, areas[i].y1, left + TEXTX, y + TEXTY, buf[i]);
-    y += (ROWINCR + globals.lineSpacing());
+    y = bottom - SCREENTOP - ROWH - ((ROWINCR + globals.lineSpacing()) * (rowcount-1));
+    for (i = 0; i < rowcount; i++)
+    {
+        int w = 0;
+        int left = SIDEMARGIN;
+        w = mOsdFont->Width(buf[i]) + 2 * TEXTX;
+        if (w % 4)
+            w += 4 - (w % 4);
+        switch (globals.textPos())
+        {
+        case 1:
+            left = (SCREENRIGHT - w) / 2;
+            break;
+        case 2:
+            left = SCREENRIGHT - SIDEMARGIN - w;
+            break;
+        }
+        mOsd->DrawRectangle(left, y, left + w, y + ROWH, getcolor(globals.bgColor()));
+        mOsd->DrawText(left + TEXTX, y + TEXTY, buf[i], getcolor(globals.fgColor()), getcolor(globals.bgColor()), mOsdFont);
+        //dprint("%d/%d (%d,%d) (%d,%d): %s\n", i, rowcount-1, areas[i].x1, areas[i].y1, left + TEXTX, y + TEXTY, buf[i]);
+        y += (ROWINCR + globals.lineSpacing());
     }
-  mOsd->Flush();
+    mOsd->Flush();
 }
 
 
 void cTtxtSubsDisplay::ClearOSD(void)
 {
-  // dprint("\nClearOSD!\n");
-  cOSDSelfMemoryLock selfmem(&gSelfMem);
-  cMutexLock lock(&mOsdLock);
+    // dprint("\nClearOSD!\n");
+    cOSDSelfMemoryLock selfmem(&gSelfMem);
+    cMutexLock lock(&mOsdLock);
 
-  DELETENULL(mOsd);
+    DELETENULL(mOsd);
 }
diff --git a/ttxtsubsdisplay.h b/ttxtsubsdisplay.h
index 9a42471..f39bb43 100644
--- a/ttxtsubsdisplay.h
+++ b/ttxtsubsdisplay.h
@@ -28,29 +28,30 @@ class cFont;
 
 #define MAXTTXTROWS 5
 
-class cTtxtSubsDisplay {
- public:
-  cTtxtSubsDisplay(void);
-  ~cTtxtSubsDisplay(void);
-
-  void SetPage(int Pageno); // Pageno is 0x000 to 0x799
-  void Hide(void);
-  void Show(void);
-  void TtxtData(const uint8_t *, uint64_t sched_time = 0);
-
- protected:
-  void Clear(void);
-  void ShowOSD();
-  void ClearOSD(void);
-  
- private:
-  int mPageState;
-  int mMag;
-  int mNo;
-  int mDoDisplay;
-  struct ttxt_page page;
-  cOsd *mOsd;
-  cMutex mOsdLock;
-  struct timeval *mLastDataTime;
-  const cFont *mOsdFont;
+class cTtxtSubsDisplay
+{
+public:
+    cTtxtSubsDisplay(void);
+    ~cTtxtSubsDisplay(void);
+
+    void SetPage(int Pageno); // Pageno is 0x000 to 0x799
+    void Hide(void);
+    void Show(void);
+    void TtxtData(const uint8_t *, uint64_t sched_time = 0);
+
+protected:
+    void Clear(void);
+    void ShowOSD();
+    void ClearOSD(void);
+
+private:
+    int mPageState;
+    int mMag;
+    int mNo;
+    int mDoDisplay;
+    struct ttxt_page page;
+    cOsd *mOsd;
+    cMutex mOsdLock;
+    struct timeval *mLastDataTime;
+    const cFont *mOsdFont;
 };