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Now checking available OSD memory at runtime

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This commit is contained in:
Klaus Schmidinger
2004-11-20 14:31:13 +01:00
parent edc1440ed8
commit 20f6194d4f
3 changed files with 14 additions and 3 deletions
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1
CONTRIBUTORS
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@@ -539,6 +539,7 @@ Oliver Endriss <o.endriss@gmx.de>
for adding a sample setup for 'DisiCon-4 Single Cable Network' to 'diseqc.conf' for adding a sample setup for 'DisiCon-4 Single Cable Network' to 'diseqc.conf'
for reporting a problem with the name of the remote control for which the keys are for reporting a problem with the name of the remote control for which the keys are
being learned overwriting the date/time in the 'classic' skin being learned overwriting the date/time in the 'classic' skin
for making cDvbOsd check available OSD memory at runtime
Reinhard Walter Buchner <rw.buchner@freenet.de> Reinhard Walter Buchner <rw.buchner@freenet.de>
for adding some satellites to 'sources.conf' for adding some satellites to 'sources.conf'

1
HISTORY
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@@ -3157,3 +3157,4 @@ Video Disk Recorder Revision History
- Fixed a possible recursion in cControl::Shutdown() (thanks to Sascha Volkenandt). - Fixed a possible recursion in cControl::Shutdown() (thanks to Sascha Volkenandt).
- Now setting the VPID before the APID in live mode to avoid unnecessary - Now setting the VPID before the APID in live mode to avoid unnecessary
overhead in the firmware (thanks to Werner Fink). overhead in the firmware (thanks to Werner Fink).
- Now checking available OSD memory at runtime (thanks to Oliver Endriss).

15
dvbosd.c
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@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and * See the main source file 'vdr.c' for copyright information and
* how to reach the author. * how to reach the author.
* *
* $Id: dvbosd.c 1.24 2004/07/18 10:20:05 kls Exp $ * $Id: dvbosd.c 1.25 2004/11/20 14:29:25 kls Exp $
*/ */
#include "dvbosd.h" #include "dvbosd.h"
@@ -18,11 +18,12 @@
// --- cDvbOsd --------------------------------------------------------------- // --- cDvbOsd ---------------------------------------------------------------
#define MAXNUMWINDOWS 7 // OSD windows are counted 1...7 #define MAXNUMWINDOWS 7 // OSD windows are counted 1...7
#define MAXOSDMEMORY 92000 // number of bytes available to the OSD (depends on firmware version, but there is no way of determining the actual value) #define MAXOSDMEMORY 92000 // number of bytes available to the OSD (for unmodified DVB cards)
class cDvbOsd : public cOsd { class cDvbOsd : public cOsd {
private: private:
int osdDev; int osdDev;
int osdMem;
bool shown; bool shown;
void Cmd(OSD_Command cmd, int color = 0, int x0 = 0, int y0 = 0, int x1 = 0, int y1 = 0, const void *data = NULL); void Cmd(OSD_Command cmd, int color = 0, int x0 = 0, int y0 = 0, int x1 = 0, int y1 = 0, const void *data = NULL);
public: public:
@@ -40,6 +41,14 @@ cDvbOsd::cDvbOsd(int Left, int Top, int OsdDev)
if (osdDev < 0) if (osdDev < 0)
esyslog("ERROR: illegal OSD device handle (%d)!", osdDev); esyslog("ERROR: illegal OSD device handle (%d)!", osdDev);
else { else {
osdMem = MAXOSDMEMORY;
#ifdef OSD_CAP_MEMSIZE
// modified DVB cards may have more OSD memory:
osd_cap_t cap;
cap.cmd = OSD_CAP_MEMSIZE;
if (ioctl(osdDev, OSD_GET_CAPABILITY, &cap) == 0)
osdMem = cap.val;
#endif
// must clear all windows here to avoid flashing effects - doesn't work if done // must clear all windows here to avoid flashing effects - doesn't work if done
// in Flush() only for the windows that are actually used... // in Flush() only for the windows that are actually used...
for (int i = 0; i < MAXNUMWINDOWS; i++) { for (int i = 0; i < MAXNUMWINDOWS; i++) {
@@ -74,7 +83,7 @@ eOsdError cDvbOsd::CanHandleAreas(const tArea *Areas, int NumAreas)
return oeWrongAlignment; return oeWrongAlignment;
TotalMemory += Areas[i].Width() * Areas[i].Height() / (8 / Areas[i].bpp); TotalMemory += Areas[i].Width() * Areas[i].Height() / (8 / Areas[i].bpp);
} }
if (TotalMemory > MAXOSDMEMORY) if (TotalMemory > osdMem)
return oeOutOfMemory; return oeOutOfMemory;
} }
return Result; return Result;