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-rw-r--r--PLUGINS/src/dvbsddevice/dvbsdffosd.c213
1 files changed, 213 insertions, 0 deletions
diff --git a/PLUGINS/src/dvbsddevice/dvbsdffosd.c b/PLUGINS/src/dvbsddevice/dvbsdffosd.c
new file mode 100644
index 00000000..5e5ea01d
--- /dev/null
+++ b/PLUGINS/src/dvbsddevice/dvbsdffosd.c
@@ -0,0 +1,213 @@
+/*
+ * dvbsdffosd.c: Implementation of the DVB SD Full Featured On Screen Display
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id: dvbsdffosd.c 2.1 2009/12/31 15:36:00 kls Exp $
+ */
+
+#include "dvbsdffosd.h"
+#include <linux/dvb/osd.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <sys/unistd.h>
+#include "vdr/tools.h"
+
+// --- cDvbSdFfOsd -----------------------------------------------------------
+
+#define MAXNUMWINDOWS 7 // OSD windows are counted 1...7
+#define MAXOSDMEMORY 92000 // number of bytes available to the OSD (for unmodified DVB cards)
+
+class cDvbSdFfOsd : public cOsd {
+private:
+ int osdDev;
+ int osdMem;
+ 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);
+protected:
+ virtual void SetActive(bool On);
+public:
+ cDvbSdFfOsd(int Left, int Top, int OsdDev, uint Level);
+ virtual ~cDvbSdFfOsd();
+ virtual eOsdError CanHandleAreas(const tArea *Areas, int NumAreas);
+ virtual eOsdError SetAreas(const tArea *Areas, int NumAreas);
+ virtual void Flush(void);
+ };
+
+cDvbSdFfOsd::cDvbSdFfOsd(int Left, int Top, int OsdDev, uint Level)
+:cOsd(Left, Top, Level)
+{
+ osdDev = OsdDev;
+ shown = false;
+ if (osdDev < 0)
+ esyslog("ERROR: invalid OSD device handle (%d)!", osdDev);
+ 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
+ }
+}
+
+cDvbSdFfOsd::~cDvbSdFfOsd()
+{
+ SetActive(false);
+}
+
+void cDvbSdFfOsd::SetActive(bool On)
+{
+ if (On != Active()) {
+ cOsd::SetActive(On);
+ if (On) {
+ // must clear all windows here to avoid flashing effects - doesn't work if done
+ // in Flush() only for the windows that are actually used...
+ for (int i = 0; i < MAXNUMWINDOWS; i++) {
+ Cmd(OSD_SetWindow, 0, i + 1);
+ Cmd(OSD_Clear);
+ }
+ if (GetBitmap(0)) // only flush here if there are already bitmaps
+ Flush();
+ }
+ else if (shown) {
+ cBitmap *Bitmap;
+ for (int i = 0; (Bitmap = GetBitmap(i)) != NULL; i++) {
+ Cmd(OSD_SetWindow, 0, i + 1);
+ Cmd(OSD_Close);
+ }
+ shown = false;
+ }
+ }
+}
+
+eOsdError cDvbSdFfOsd::CanHandleAreas(const tArea *Areas, int NumAreas)
+{
+ eOsdError Result = cOsd::CanHandleAreas(Areas, NumAreas);
+ if (Result == oeOk) {
+ if (NumAreas > MAXNUMWINDOWS)
+ return oeTooManyAreas;
+ int TotalMemory = 0;
+ for (int i = 0; i < NumAreas; i++) {
+ if (Areas[i].bpp != 1 && Areas[i].bpp != 2 && Areas[i].bpp != 4 && Areas[i].bpp != 8)
+ return oeBppNotSupported;
+ if ((Areas[i].Width() & (8 / Areas[i].bpp - 1)) != 0)
+ return oeWrongAlignment;
+ if (Areas[i].Width() < 1 || Areas[i].Height() < 1 || Areas[i].Width() > 720 || Areas[i].Height() > 576)
+ return oeWrongAreaSize;
+ TotalMemory += Areas[i].Width() * Areas[i].Height() / (8 / Areas[i].bpp);
+ }
+ if (TotalMemory > osdMem)
+ return oeOutOfMemory;
+ }
+ return Result;
+}
+
+eOsdError cDvbSdFfOsd::SetAreas(const tArea *Areas, int NumAreas)
+{
+ if (shown) {
+ cBitmap *Bitmap;
+ for (int i = 0; (Bitmap = GetBitmap(i)) != NULL; i++) {
+ Cmd(OSD_SetWindow, 0, i + 1);
+ Cmd(OSD_Close);
+ }
+ shown = false;
+ }
+ return cOsd::SetAreas(Areas, NumAreas);
+}
+
+void cDvbSdFfOsd::Cmd(OSD_Command cmd, int color, int x0, int y0, int x1, int y1, const void *data)
+{
+ if (osdDev >= 0) {
+ osd_cmd_t dc;
+ dc.cmd = cmd;
+ dc.color = color;
+ dc.x0 = x0;
+ dc.y0 = y0;
+ dc.x1 = x1;
+ dc.y1 = y1;
+ dc.data = (void *)data;
+ ioctl(osdDev, OSD_SEND_CMD, &dc);
+ }
+}
+
+void cDvbSdFfOsd::Flush(void)
+{
+ if (!Active())
+ return;
+ cBitmap *Bitmap;
+ for (int i = 0; (Bitmap = GetBitmap(i)) != NULL; i++) {
+ Cmd(OSD_SetWindow, 0, i + 1);
+ if (!shown)
+ Cmd(OSD_Open, Bitmap->Bpp(), Left() + Bitmap->X0(), Top() + Bitmap->Y0(), Left() + Bitmap->X0() + Bitmap->Width() - 1, Top() + Bitmap->Y0() + Bitmap->Height() - 1, (void *)1); // initially hidden!
+ int x1 = 0, y1 = 0, x2 = 0, y2 = 0;
+ if (!shown || Bitmap->Dirty(x1, y1, x2, y2)) {
+ if (!shown) {
+ x1 = y1 = 0;
+ x2 = Bitmap->Width() - 1;
+ y2 = Bitmap->Height() - 1;
+ }
+ //TODO Workaround: apparently the bitmap sent to the driver always has to be a multiple
+ //TODO 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 ((x1 > 0 || x2 < Bitmap->Width() - 1) && ((x2 - x1) & 7) != 7) {
+ if (x2 < Bitmap->Width() - 1)
+ x2++;
+ else if (x1 > 0)
+ x1--;
+ }
+ //TODO "... / 2" <==> Bpp???
+ while ((y1 > 0 || y2 < Bitmap->Height() - 1) && (((x2 - x1 + 1) * (y2 - y1 + 1) / 2) & 7) != 0) {
+ if (y2 < Bitmap->Height() - 1)
+ y2++;
+ else if (y1 > 0)
+ y1--;
+ }
+ while ((x1 > 0 || x2 < Bitmap->Width() - 1) && (((x2 - x1 + 1) * (y2 - y1 + 1) / 2) & 7) != 0) {
+ if (x2 < Bitmap->Width() - 1)
+ x2++;
+ else if (x1 > 0)
+ x1--;
+ }
+ // commit colors:
+ int NumColors;
+ const tColor *Colors = Bitmap->Colors(NumColors);
+ if (Colors) {
+ //TODO this should be fixed in the driver!
+ tColor colors[NumColors];
+ for (int i = 0; i < NumColors; i++) {
+ // convert AARRGGBB to AABBGGRR (the driver expects the colors the wrong way):
+ colors[i] = (Colors[i] & 0xFF000000) | ((Colors[i] & 0x0000FF) << 16) | (Colors[i] & 0x00FF00) | ((Colors[i] & 0xFF0000) >> 16);
+ }
+ Colors = colors;
+ //TODO end of stuff that should be fixed in the driver
+ Cmd(OSD_SetPalette, 0, NumColors - 1, 0, 0, 0, Colors);
+ }
+ // commit modified data:
+ Cmd(OSD_SetBlock, Bitmap->Width(), x1, y1, x2, y2, Bitmap->Data(x1, y1));
+ }
+ Bitmap->Clean();
+ }
+ if (!shown) {
+ // Showing the windows in a separate loop to avoid seeing them come up one after another
+ for (int i = 0; (Bitmap = GetBitmap(i)) != NULL; i++) {
+ Cmd(OSD_SetWindow, 0, i + 1);
+ Cmd(OSD_MoveWindow, 0, Left() + Bitmap->X0(), Top() + Bitmap->Y0());
+ }
+ shown = true;
+ }
+}
+
+// --- cDvbOsdProvider -------------------------------------------------------
+
+cDvbOsdProvider::cDvbOsdProvider(int OsdDev)
+{
+ osdDev = OsdDev;
+}
+
+cOsd *cDvbOsdProvider::CreateOsd(int Left, int Top, uint Level)
+{
+ return new cDvbSdFfOsd(Left, Top, osdDev, Level);
+}
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