Added cOsd::MaxPixmapSize()

HISTORY

@@ -8595,3 +8595,11 @@ Video Disk Recorder Revision History
 - Fixed leading/trailing/multiple blanks in the translation files.
 - Bumped all version numbers to 2.2.0.
 - Official release.
+
+2015-03-08: Version 2.3.1
+
+- The new function cOsd::MaxPixmapSize() can be called to determine the maximum size
+  a cPixmap may have on the current OSD. The 'osddemo' example has been modified
+  accordingly. Plugin authors may want to use this function in case they use pixmaps
+  that are larger than the full OSD size. The default implementation sets this limit
+  to 2048x2048 pixel.

PLUGINS/src/osddemo/HISTORY

@@ -72,3 +72,7 @@ VDR Plugin 'osddemo' Revision History
 2015-02-19: Version 2.2.0
 
 - Official release.
+
+2015-03-08: Version 2.3.1
+
+- Now using cOsd::MaxPixmapSize().

PLUGINS/src/osddemo/osddemo.c

@@ -3,13 +3,13 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: osddemo.c 3.4 2015/02/17 13:12:36 kls Exp $
+ * $Id: osddemo.c 4.1 2015/03/08 16:40:01 kls Exp $
  */
 
 #include <vdr/osd.h>
 #include <vdr/plugin.h>
 
-static const char *VERSION        = "2.2.0";
+static const char *VERSION        = "2.3.1";
 static const char *DESCRIPTION    = "Demo of arbitrary OSD setup";
 static const char *MAINMENUENTRY  = "Osd Demo";
 
@@ -427,16 +427,20 @@ void cTrueColorDemo::Action(void)
                        const int Size = SmlFont->Width(Text) + 10;
                        const int NumDots = 12;
                        const int AnimFrames = NumDots;
+                       int Rows = min(osd->MaxPixmapSize().Height() / Size, AnimFrames);
+                       int Cols = (AnimFrames + Rows - 1) / Rows;
                        // Temporarily using pixmap layer 0 to have the text alpha blended:
-                       AnimPixmap = osd->CreatePixmap(0, cRect((osd->Width() - Size) / 2, StartLine, Size, Size), cRect(0, 0, Size, Size * AnimFrames));
+                       AnimPixmap = osd->CreatePixmap(0, cRect((osd->Width() - Size) / 2, StartLine, Size, Size), cRect(0, 0, Size * Cols, Size * Rows));
                        if (AnimPixmap) {
                           AnimPixmap->SetAlpha(0);
                           AnimPixmap->Clear();
                           const int Diameter = Size / 5;
-                          int xc = Size / 2 - Diameter / 2;
                           for (int Frame = 0; Frame < AnimFrames; Frame++) {
-                              AnimPixmap->DrawEllipse(cRect(0, Frame * Size, Size, Size), 0xDDFFFFFF);
+                              int x0 = Frame / Rows * Size;
-                              int yc = Frame * Size + Size / 2 - Diameter / 2;
+                              int y0 = Frame % Rows * Size;
+                              AnimPixmap->DrawEllipse(cRect(x0, y0, Size, Size), 0xDDFFFFFF);
+                              int xc = x0 + Size / 2 - Diameter / 2;
+                              int yc = y0 + Size / 2 - Diameter / 2;
                               int Color = 0xFF;
                               int Delta = Color / NumDots / 3;
                               for (int a = 0; a < NumDots; a++) {
@@ -446,7 +450,7 @@ void cTrueColorDemo::Action(void)
                                   AnimPixmap->DrawEllipse(cRect(x, y, Diameter, Diameter), ArgbToColor(0xFF, Color, Color, Color));
                                   Color -= Delta;
                                   }
-                              AnimPixmap->DrawText(cPoint(0, Frame * Size), Text, clrBlack, clrTransparent, SmlFont, Size, Size, taCenter);
+                              AnimPixmap->DrawText(cPoint(x0, y0), Text, clrBlack, clrTransparent, SmlFont, Size, Size, taCenter);
                               }
                           AnimPixmap->SetLayer(3); // now setting the actual pixmap layer
                           FadeInPixmap = AnimPixmap;

config.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: config.h 3.21 2015/02/17 13:11:00 kls Exp $
+ * $Id: config.h 4.1 2015/02/21 14:59:27 kls Exp $
  */
 
 #ifndef __CONFIG_H
@@ -22,13 +22,13 @@
 
 // VDR's own version number:
 
-#define VDRVERSION  "2.2.0"
+#define VDRVERSION  "2.3.1"
-#define VDRVERSNUM   20200  // Version * 10000 + Major * 100 + Minor
+#define VDRVERSNUM   20301  // Version * 10000 + Major * 100 + Minor
 
 // The plugin API's version number:
 
-#define APIVERSION  "2.2.0"
+#define APIVERSION  "2.3.1"
-#define APIVERSNUM   20200  // Version * 10000 + Major * 100 + Minor
+#define APIVERSNUM   20301  // Version * 10000 + Major * 100 + Minor
 
 // When loading plugins, VDR searches them by their APIVERSION, which
 // may be smaller than VDRVERSION in case there have been no changes to

osd.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: osd.c 3.5 2015/02/11 09:48:02 kls Exp $
+ * $Id: osd.c 4.1 2015/03/08 13:54:47 kls Exp $
  */
 
 #include "osd.h"
@@ -1641,6 +1641,7 @@ int cOsd::osdLeft = 0;
 int cOsd::osdTop = 0;
 int cOsd::osdWidth = 0;
 int cOsd::osdHeight = 0;
+cSize cOsd::maxPixmapSize(2048, 2048);
 cVector<cOsd *> cOsd::Osds;
 cMutex cOsd::mutex;
 
@@ -1705,6 +1706,11 @@ cBitmap *cOsd::GetBitmap(int Area)
   return Area < numBitmaps ? (isTrueColor ? bitmaps[0] : bitmaps[Area]) : NULL;
 }
 
+const cSize &cOsd::MaxPixmapSize(void) const
+{
+  return maxPixmapSize;
+}
+
 cPixmap *cOsd::CreatePixmap(int Layer, const cRect &ViewPort, const cRect &DrawPort)
 {
   if (isTrueColor) {

osd.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: osd.h 3.6 2015/02/11 09:48:02 kls Exp $
+ * $Id: osd.h 4.1 2015/03/08 13:54:09 kls Exp $
  */
 
 #ifndef __OSD_H
@@ -722,6 +722,7 @@ class cOsd {
 private:
   static int osdLeft, osdTop, osdWidth, osdHeight;
   static cVector<cOsd *> Osds;
+  static cSize maxPixmapSize;
   static cMutex mutex;
   bool isTrueColor;
   cBitmap *savedBitmap;
@@ -820,6 +821,8 @@ public:
        ///< in order to preset the bitmap's palette won't crash.
        ///< Use of this function outside of derived classes is deprecated and it
        ///< may be made 'protected' in a future version.
+  virtual const cSize &MaxPixmapSize(void) const;
+       ///< Returns the maximum possible size of a pixmap this OSD can create.
   virtual cPixmap *CreatePixmap(int Layer, const cRect &ViewPort, const cRect &DrawPort = cRect::Null);
        ///< Creates a new true color pixmap on this OSD (see cPixmap for details).
        ///< The caller must not delete the returned object, it will be deleted when