Larger OSD with 2bpp windows; Channel display at bottom

1 files changed, 299 insertions, 41 deletions

diff --git a/dvbosd.c b/dvbosd.c
index 0ea90e7e..c05dcb85 100644
--- a/dvbosd.c
+++ b/dvbosd.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbosd.c 1.8 2001/05/26 11:49:35 kls Exp $
+ * $Id: dvbosd.c 1.9 2001/07/22 11:48:54 kls Exp $
  */
 
 #include "dvbosd.h"
@@ -14,12 +14,83 @@
 #include <sys/unistd.h>
 #include "tools.h"
 
+// --- cPalette --------------------------------------------------------------
+
+cPalette::cPalette(int Bpp)
+{
+  maxColors = 1 << Bpp;
+  numColors = 0;
+  full = false;
+}
+
+int cPalette::Index(eDvbColor Color)
+{
+  for (int i = 0; i < numColors; i++) {
+      if (color[i] == Color) {
+         used[i] = true;
+         return i;
+         }
+      }
+  if (!full) {
+     if (numColors < maxColors) {
+        color[numColors++] = Color;
+        used[numColors - 1] = true;
+        fetched[numColors - 1] = false;
+        return numColors - 1;
+        }
+     for (int i = maxColors; --i >= 0; ) {
+         if (!used[i]) {
+            color[i] = Color;
+            used[i] = true;
+            fetched[i] = false;
+            return i;
+            }
+         }
+     esyslog(LOG_ERR, "ERROR: too many different colors used in palette");
+     full = true;
+     }
+  return 0;
+}
+
+void cPalette::Reset(void)
+{
+  for (int i = 0; i < numColors; i++)
+      used[i] = false;
+  full = false;
+}
+
+const eDvbColor *cPalette::Colors(int &FirstColor, int &LastColor)
+{
+  for (FirstColor = 0; FirstColor < numColors; FirstColor++) {
+      if (!fetched[FirstColor]) {
+         for (LastColor = FirstColor; LastColor < numColors && !fetched[LastColor]; LastColor++)
+             fetched[LastColor] = true;
+         LastColor--; // the loop ended one past the last one!
+         return &color[FirstColor];
+         }
+      }
+  return NULL;
+}
+
+void cPalette::Take(const cPalette &Palette, tIndexes *Indexes)
+{
+  for (int i = 0; i < Palette.numColors; i++) {
+      if (Palette.used[i]) {
+         int n = Index(Palette.color[i]);
+         if (Indexes)
+            (*Indexes)[i] = n;
+         }
+      }
+}
+
 // --- cBitmap ---------------------------------------------------------------
 
-cBitmap::cBitmap(int Width, int Height)
+cBitmap::cBitmap(int Width, int Height, int Bpp, bool ClearWithBackground)
+:cPalette(Bpp)
 {
   width = Width;
   height = Height;
+  clearWithBackground = ClearWithBackground;
   bitmap = NULL;
   fontType = fontOsd;
   font = NULL;
@@ -27,7 +98,7 @@ cBitmap::cBitmap(int Width, int Height)
      bitmap = new char[width * height];
      if (bitmap) {
         Clean();
-        memset(bitmap, clrTransparent, width * height);
+        memset(bitmap, 0x00, width * height);
         SetFont(fontOsd);
         }
      else
@@ -54,9 +125,38 @@ eDvbFont cBitmap::SetFont(eDvbFont Font)
   return oldFont;
 }
 
-bool cBitmap::Dirty(void)
+bool cBitmap::Dirty(int &x1, int &y1, int &x2, int &y2)
 {
-  return dirtyX2 >= 0;
+  if (dirtyX2 >= 0) {
+     //XXX Workaround: apparently the bitmap sent to the driver always has to be a multiple
+     //XXX of 8 bits wide, and (dx * dy) also has to be a multiple of 8.
+     //TODO Fix driver (should be able to handle any size bitmaps!)
+     while ((dirtyX1 > 0 || dirtyX2 < width - 1) && ((dirtyX2 - dirtyX1) & 7) != 7) {
+           if (dirtyX2 < width - 1)
+              dirtyX2++;
+           else if (dirtyX1 > 0)
+              dirtyX1--;
+           }
+     //XXX "... / 2" <==> Bpp???
+     while ((dirtyY1 > 0 || dirtyY2 < height - 1) && (((dirtyX2 - dirtyX1 + 1) * (dirtyY2 - dirtyY1 + 1) / 2) & 7) != 0) {
+           if (dirtyY2 < height - 1)
+              dirtyY2++;
+           else if (dirtyY1 > 0)
+              dirtyY1--;
+           }
+     while ((dirtyX1 > 0 || dirtyX2 < width - 1) && (((dirtyX2 - dirtyX1 + 1) * (dirtyY2 - dirtyY1 + 1) / 2) & 7) != 0) {
+           if (dirtyX2 < width - 1)
+              dirtyX2++;
+           else if (dirtyX1 > 0)
+              dirtyX1--;
+           }
+     x1 = dirtyX1;
+     y1 = dirtyY1;
+     x2 = dirtyX2;
+     y2 = dirtyY2;
+     return true;
+     }
+  return false;
 }
 
 void cBitmap::Clean(void)
@@ -67,12 +167,12 @@ void cBitmap::Clean(void)
   dirtyY2 = -1;
 }
 
-void cBitmap::SetPixel(int x, int y, eDvbColor Color)
+void cBitmap::SetIndex(int x, int y, char Index)
 {
   if (bitmap) {
      if (0 <= x && x < width && 0 <= y && y < height) {
-        if (bitmap[width * y + x] != Color) {
-           bitmap[width * y + x] = Color;
+        if (bitmap[width * y + x] != Index) {
+           bitmap[width * y + x] = Index;
            if (dirtyX1 > x)  dirtyX1 = x;
            if (dirtyY1 > y)  dirtyY1 = y;
            if (dirtyX2 < x)  dirtyX2 = x;
@@ -82,12 +182,19 @@ void cBitmap::SetPixel(int x, int y, eDvbColor Color)
      }
 }
 
+void cBitmap::SetPixel(int x, int y, eDvbColor Color)
+{
+  SetIndex(x, y, Index(Color));
+}
+
 void cBitmap::SetBitmap(int x, int y, const cBitmap &Bitmap)
 {
   if (bitmap && Bitmap.bitmap) {
+     tIndexes Indexes;
+     Take(Bitmap, &Indexes);
      for (int ix = 0; ix < Bitmap.width; ix++) {
          for (int iy = 0; iy < Bitmap.height; iy++)
-             SetPixel(x + ix, y + iy, eDvbColor(Bitmap.bitmap[Bitmap.width * iy + ix]));
+             SetIndex(x + ix, y + iy, Indexes[Bitmap.bitmap[Bitmap.width * iy + ix]]);
          }
      }
 }
@@ -105,6 +212,8 @@ int cBitmap::Width(const char *s)
 void cBitmap::Text(int x, int y, const char *s, eDvbColor ColorFg, eDvbColor ColorBg)
 {
   if (bitmap) {
+     char fg = Index(ColorFg);
+     char bg = Index(ColorBg);
      int h = font->Height(s);
      while (s && *s) {
            const cFont::tCharData *CharData = font->CharData(*s++);
@@ -113,7 +222,7 @@ void cBitmap::Text(int x, int y, const char *s, eDvbColor ColorFg, eDvbColor Col
            for (int row = 0; row < h; row++) {
                cFont::tPixelData PixelData = CharData->lines[row];
                for (int col = CharData->width; col-- > 0; ) {
-                   SetPixel(x + col, y + row, (PixelData & 1) ? ColorFg : ColorBg);
+                   SetIndex(x + col, y + row, (PixelData & 1) ? fg : bg);
                    PixelData >>= 1;
                    }
                }
@@ -125,33 +234,103 @@ void cBitmap::Text(int x, int y, const char *s, eDvbColor ColorFg, eDvbColor Col
 void cBitmap::Fill(int x1, int y1, int x2, int y2, eDvbColor Color)
 {
   if (bitmap) {
+     char c = Index(Color);
      for (int y = y1; y <= y2; y++)
          for (int x = x1; x <= x2; x++)
-             SetPixel(x, y, Color);
+             SetIndex(x, y, c);
      }
 }
 
 void cBitmap::Clear(void)
 {
-  Fill(0, 0, width - 1, height - 1, clrBackground);
+  Reset();
+  if (clearWithBackground)
+     Fill(0, 0, width - 1, height - 1, clrBackground);
+}
+
+const char *cBitmap::Data(int x, int y)
+{
+  return &bitmap[y * width + x];
+}
+
+// --- cWindow ---------------------------------------------------------------
+
+class cWindow : public cBitmap {
+private:
+  int x0, y0;
+  bool shown;
+public:
+  cWindow(int x, int y, int w, int h, int Bpp, bool ClearWithBackground = true);
+  int X0(void) { return x0; }
+  int Y0(void) { return y0; }
+  bool Shown(void) { bool s = shown; shown = true; return s; }
+  bool Contains(int x, int y);
+  void Fill(int x1, int y1, int x2, int y2, eDvbColor Color);
+  void SetBitmap(int x, int y, const cBitmap &Bitmap);
+  void Text(int x, int y, const char *s, eDvbColor ColorFg = clrWhite, eDvbColor ColorBg = clrBackground);
+  const char *Data(int x, int y);
+  };
+
+cWindow::cWindow(int x, int y, int w, int h, int Bpp, bool ClearWithBackground)
+:cBitmap(w, h, Bpp, ClearWithBackground)
+{
+  x0 = x;
+  y0 = y;
+  shown = false;
+}
+
+bool cWindow::Contains(int x, int y)
+{
+  x -= x0;
+  y -= y0;
+  return x >= 0 && y >= 0 && x < width && y < height;
+}
+
+void cWindow::Fill(int x1, int y1, int x2, int y2, eDvbColor Color)
+{
+  cBitmap::Fill(x1 - x0, y1 - y0, x2 - x0, y2 - y0, Color);
+}
+
+void cWindow::SetBitmap(int x, int y, const cBitmap &Bitmap)
+{
+  cBitmap::SetBitmap(x - x0, y - y0, Bitmap);
+}
+
+void cWindow::Text(int x, int y, const char *s, eDvbColor ColorFg, eDvbColor ColorBg)
+{
+  cBitmap::Text(x - x0, y - y0, s, ColorFg, ColorBg);
+}
+
+const char *cWindow::Data(int x, int y)
+{
+  return cBitmap::Data(x, y);
 }
 
 // --- cDvbOsd ---------------------------------------------------------------
 
-cDvbOsd::cDvbOsd(int VideoDev, int x1, int y1, int x2, int y2, int Bpp)
-:cBitmap(x2 - x1 + 1, y2 - y1 + 1)
+cDvbOsd::cDvbOsd(int VideoDev, int x, int y, int w, int h, int Bpp)
 {
   videoDev = VideoDev;
-  if (videoDev >= 0)
-     Cmd(OSD_Open, Bpp, x1, y1, x2, y2);
+  numWindows = 0;
+  x0 = x;
+  y0 = y;
+  if (videoDev >= 0) {
+     if (w > 0 && h > 0)
+        Create(0, 0, w, h, Bpp);
+     }
   else
      esyslog(LOG_ERR, "ERROR: illegal video device handle (%d)!", videoDev);
 }
 
 cDvbOsd::~cDvbOsd()
 {
-  if (videoDev >= 0)
-     Cmd(OSD_Close);
+  if (videoDev >= 0) {
+     while (numWindows > 0) {
+           Cmd(OSD_SetWindow, 0, numWindows--);
+           Cmd(OSD_Close);
+           delete window[numWindows];
+           }
+     }
 }
 
 void cDvbOsd::Cmd(OSD_Command cmd, int color, int x0, int y0, int x1, int y1, const void *data)
@@ -178,32 +357,111 @@ void cDvbOsd::Cmd(OSD_Command cmd, int color, int x0, int y0, int x1, int y1, co
      }
 }
 
-void cDvbOsd::Flush(void)
+bool cDvbOsd::Create(int x, int y, int w, int h, int Bpp, bool ClearWithBackground, eDvbColor Color0, eDvbColor Color1, eDvbColor Color2, eDvbColor Color3)
 {
-  if (Dirty()) {
-     //XXX Workaround: apparently the bitmap sent to the driver always has to be a multiple
-     //XXX of 8 bits wide, and (dx * dy) also has to be a multiple of 8.
-     //TODO Fix driver (should be able to handle any size bitmaps!)
-     while ((dirtyX1 > 0 || dirtyX2 < width - 1) && ((dirtyX2 - dirtyX1) & 7) != 7) {
-           if (dirtyX2 < width - 1)
-              dirtyX2++;
-           else if (dirtyX1 > 0)
-              dirtyX1--;
-           }
-     while ((dirtyY1 > 0 || dirtyY2 < height - 1) && (((dirtyX2 - dirtyX1 + 1) * (dirtyY2 - dirtyY1 + 1) / 2) & 7) != 0) {
-           if (dirtyY2 < height - 1)
-              dirtyY2++;
-           else if (dirtyY1 > 0)
-              dirtyY1--;
+  /* TODO XXX
+     - check that no two windows overlap
+  */
+  if (numWindows < MAXNUMWINDOWS) {
+     if (x >= 0 && y >= 0 && w > 0 && h > 0 && (Bpp == 1 || Bpp == 2 || Bpp == 4 || Bpp == 8)) {
+        if ((w & 0x03) != 0) {
+           w += 4 - (w & 0x03);
+           esyslog(LOG_ERR, "ERROR: OSD window width must be a multiple of 4 - increasing to %d", w);
            }
-     while ((dirtyX1 > 0 || dirtyX2 < width - 1) && (((dirtyX2 - dirtyX1 + 1) * (dirtyY2 - dirtyY1 + 1) / 2) & 7) != 0) {
-           if (dirtyX2 < width - 1)
-              dirtyX2++;
-           else if (dirtyX1 > 0)
-              dirtyX1--;
+        cWindow *win = new cWindow(x, y, w, h, Bpp, ClearWithBackground);
+        if (Color0 != clrTransparent) {
+           win->Index(Color0);
+           win->Index(Color1);
+           win->Index(Color2);
+           win->Index(Color3);
+           win->Reset();
            }
-     Cmd(OSD_SetBlock, width, dirtyX1, dirtyY1, dirtyX2, dirtyY2, &bitmap[dirtyY1 * width + dirtyX1]);
-     Clean();
+        window[numWindows++] = win;
+        Cmd(OSD_SetWindow, 0, numWindows);
+        Cmd(OSD_Open, Bpp, x0 + x, y0 + y, x0 + x + w - 1, y0 + y + h - 1, (void *)1); // initially hidden!
+        }
+     else
+        esyslog(LOG_ERR, "ERROR: illegal OSD parameters");
      }
+  else
+     esyslog(LOG_ERR, "ERROR: too many OSD windows");
+  return false;
+}
+
+cWindow *cDvbOsd::GetWindow(int x, int y)
+{
+  for (int i = 0; i < numWindows; i++) {
+      if (window[i]->Contains(x, y))
+         return window[i];
+      }
+  return NULL;
+}
+
+void cDvbOsd::Flush(void)
+{
+  for (int i = 0; i < numWindows; i++) {
+      int x1 = 0, y1 = 0, x2 = 0, y2 = 0;
+      if (window[i]->Dirty(x1, y1, x2, y2)) {
+         Cmd(OSD_SetWindow, 0, i + 1);
+         int FirstColor = 0, LastColor = 0;
+         const eDvbColor *pal;
+         while ((pal = window[i]->Colors(FirstColor, LastColor)) != NULL)
+               Cmd(OSD_SetPalette, FirstColor, LastColor, 0, 0, 0, pal);
+         Cmd(OSD_SetBlock, window[i]->Width(), x1, y1, x2, y2, window[i]->Data(x1, y1));
+         window[i]->Clean();
+         }
+      }
+  // Showing the windows in a separate loop to avoid seeing them come up one after another
+  for (int i = 0; i < numWindows; i++) {
+      if (!window[i]->Shown()) {
+         Cmd(OSD_SetWindow, 0, i + 1);
+         Cmd(OSD_MoveWindow, 0, x0 + window[i]->X0(), y0 + window[i]->Y0());
+         }
+      }
+}
+
+void cDvbOsd::Clear(void)
+{
+  for (int i = 0; i < numWindows; i++)
+      window[i]->Clear();
+}
+
+void cDvbOsd::Fill(int x1, int y1, int x2, int y2, eDvbColor Color)
+{
+  cWindow *w = GetWindow(x1, y1);
+  if (w)
+     w->Fill(x1, y1, x2, y2, Color);
+}
+
+void cDvbOsd::SetBitmap(int x, int y, const cBitmap &Bitmap)
+{
+  cWindow *w = GetWindow(x, y);
+  if (w)
+     w->SetBitmap(x, y, Bitmap);
+}
+
+int cDvbOsd::Width(unsigned char c)
+{
+  return numWindows ? window[0]->Width(c) : 0;
+}
+
+int cDvbOsd::Width(const char *s)
+{
+  return numWindows ? window[0]->Width(s) : 0;
+}
+
+eDvbFont cDvbOsd::SetFont(eDvbFont Font)
+{
+  eDvbFont oldFont = Font;
+  for (int i = 0; i < numWindows; i++)
+      oldFont = window[i]->SetFont(Font);
+  return oldFont;
+}
+
+void cDvbOsd::Text(int x, int y, const char *s, eDvbColor ColorFg = clrWhite, eDvbColor ColorBg = clrBackground)
+{
+  cWindow *w = GetWindow(x, y);
+  if (w)
+     w->Text(x, y, s, ColorFg, ColorBg);
 }