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vdr/PLUGINS/src/osddemo/osddemo.c
Klaus Schmidinger 8b9350c091 Version 1.7.18 
- Changed -O2 to -O3 in Make.config.template (reported by Matti Lehtimäki).
- Added a missing 'default' case in cPixmapMemory::DrawEllipse().
- Fixed some direct comparisons of double values.
- Fixed detecting frames on channels that broadcast with separate "fields" instead
  of complete frames.
- Made updating the editing marks during replay react faster in case the marks
  file has just been written (with a patch from Udo Richter).
- Fixed horizontal scaling of subtitles (reported by Reinhard Nissl).
- Stripped the note "The data returned by this function is only used for informational
  purposes (if any)" from the description of cDevice::GetVideoSize(). The VideoAspect
  is now used to properly scale subtitles.
- Fixed cUnbufferedFile::Seek() in case it is compiled without USE_FADVISE (thanks
  to Juergen Lock).
- Fixed the Language header of the Serbian translation file (thanks to Ville Skyttä).
- Added anti-aliasing when upscaling bitmaps, which improves the display of SD subtitles
  when replayed on an HD OSD (thanks to Reinhard Nissl for his help in debugging).
- Renamed cBitmap::Scale() to Scaled(), because it doesn't modify the bitmap itself,
  but rather returns a scaled copy.
- Fixed the description of cReceiver in PLUGINS.html, regarding detaching a receiver
  from its device before deleting it (reported by Winfried Köhler). This change in
  behavior was introduced in version 1.5.7.
- Fixed scaling subtitles in case the OSD size is exactly the same as the display
  size of the subtitles.
- Added a missing initialization to sDvbSpuRect (reported by Sergiu Dotenco).
- Replaced "%lld" and "%llX" print format specifiers with "PRId64" and "PRIX64" to
  avoid compiler warnings with gcc 4.5.2 (thanks to Sergiu Dotenco).
  On a personal note: I find it a step in the totally wrong direction that there
  have been macros introduced to work around this problem in the first place. There
  should have been "real" format specifiers defined that address this. These macros
  are nothing but an ugly workaround.
- Added Cancel(3) to ~cTrueColorDemo() in the "osddemo" plugin (thanks to Reinhard Nissl).
- Added a missing font deletion in cTrueColorDemo::Action() in the "osddemo" plugin
  (thanks to Reinhard Nissl).
- Fixed a buffer overflow in cFont::Bidi() (thanks to Reinhard Nissl).
- Added HD stream content identifiers to vdr.5 (thanks to Christoph Haubrich).
- Made cRecordingInfo::Read(FILE *f) private to avoid calls to it from outside
  cRecordingInfo or cRecording (reported by Mika Laitio).
- The dvbhddevice plugin is now part of the VDR distribution archive (thanks to
  Andreas Regel).
- Removed an obsolete local variable in dvbsdffosd.c (thanks to Paul Menzel).
- Fixed a possible NULL pointer dereference in osddemo.c (reported by Paul Menzel).
- Now using pkg-config to get fribidi, freetype and fontconfig cflags and libs (thanks
  to Ville Skyttä).
- The Makefile now also installs the include files (thanks to Ville Skyttä).
- Added handling of "ANSI/SCTE 57" descriptors (thanks too Rolf Ahrenberg).
- Avoiding an unecessary call to Recordings.ResetResume() (thanks to Reinhard
  Nissl).
2011-04-17 17:09:00 +02:00

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/*
* osddemo.c: A plugin for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
* $Id: osddemo.c 2.5 2011/04/17 13:05:13 kls Exp $
*/
#include <vdr/osd.h>
#include <vdr/plugin.h>
static const char *VERSION = "0.2.2";
static const char *DESCRIPTION = "Demo of arbitrary OSD setup";
static const char *MAINMENUENTRY = "Osd Demo";
// --- cLineGame -------------------------------------------------------------
class cLineGame : public cOsdObject {
private:
cOsd *osd;
int x;
int y;
tColor color;
public:
cLineGame(void);
virtual ~cLineGame();
virtual void Show(void);
virtual eOSState ProcessKey(eKeys Key);
};
cLineGame::cLineGame(void)
{
osd = NULL;
x = y = 50;
color = clrRed;
}
cLineGame::~cLineGame()
{
delete osd;
}
void cLineGame::Show(void)
{
osd = cOsdProvider::NewOsd(100, 50, 50);
if (osd) {
tArea Area = { 0, 0, 99, 199, 4 };
osd->SetAreas(&Area, 1);
osd->DrawRectangle(0, 0, 99, 199, clrGray50);
osd->Flush();
}
}
eOSState cLineGame::ProcessKey(eKeys Key)
{
eOSState state = cOsdObject::ProcessKey(Key);
if (state == osUnknown) {
switch (Key & ~k_Repeat) {
case kUp: if (y > 0) y--; break;
case kDown: if (y < 196) y++; break;
case kLeft: if (x > 0) x--; break;
case kRight: if (x < 96) x++; break;
case kRed: color = clrRed; break;
case kGreen: color = clrGreen; break;
case kYellow: color = clrYellow; break;
case kBlue: color = clrBlue; break;
case kOk: return osEnd;
default: return state;
}
osd->DrawRectangle(x, y, x + 3, y + 3, color);
osd->Flush();
state = osContinue;
}
return state;
}
// --- cTrueColorDemo --------------------------------------------------------
class cTrueColorDemo : public cOsdObject, public cThread {
private:
cOsd *osd;
cPoint cursor;
cRect cursorLimits;
bool clockwise;
cPixmap *destroyablePixmap;
cPixmap *toggleablePixmap;
virtual void Action(void);
cPixmap *CreateTextPixmap(const char *s, int Line, int Layer, tColor ColorFg, tColor ColorBg, const cFont *Font = NULL);
public:
cTrueColorDemo(void);
virtual ~cTrueColorDemo();
virtual void Show(void);
virtual eOSState ProcessKey(eKeys Key);
};
cTrueColorDemo::cTrueColorDemo(void)
{
osd = NULL;
clockwise = true;
destroyablePixmap = NULL;
toggleablePixmap = NULL;
}
cTrueColorDemo::~cTrueColorDemo()
{
Cancel(3);
delete osd;
}
cPixmap *cTrueColorDemo::CreateTextPixmap(const char *s, int Line, int Layer, tColor ColorFg, tColor ColorBg, const cFont *Font)
{
if (!Font)
Font = cFont::GetFont(fontOsd);
const int h = Font->Height(s);
int w = Font->Width(s);
cPixmap *Pixmap = osd->CreatePixmap(Layer, cRect((osd->Width() - w) / 2, Line, w, h));
if (Pixmap) {
Pixmap->Clear();
Pixmap->SetAlpha(0);
Pixmap->DrawText(cPoint(0, 0), s, ColorFg, ColorBg, Font);
}
return Pixmap;
}
void cTrueColorDemo::Action(void)
{
cPixmap *FadeInPixmap = NULL;
cPixmap *FadeOutPixmap = NULL;
cPixmap *MovePixmap = NULL;
cPixmap *NextPixmap = NULL;
cPixmap *TilePixmap = NULL;
cPixmap *ScrollPixmap = NULL;
cPixmap *AnimPixmap = NULL;
int FrameTime = 40; // ms
int FadeTime = 1000; // ms
int MoveTime = 4000; // ms
int TileTime = 6000; // ms
int ScrollWaitTime = 1000; // ms
int ScrollLineTime = 200; // ms
int ScrollTotalTime = 8000; // ms
uint64_t Start = 0;
uint64_t ScrollStartTime = 0;
int ScrollLineNumber = 0;
cPoint MoveStart, MoveEnd;
cPoint TileStart, TileEnd;
cPoint ScrollStart, ScrollEnd;
int Line = osd->Height() / 20;
int StartLine = Line;
cPoint OldCursor;
int State = 0;
while (Running()) {
cPixmap::Lock();
bool Animated = false;
uint64_t Now = cTimeMs::Now();
if (FadeInPixmap) {
double t = min(double(Now - Start) / FadeTime, 1.0);
int Alpha = t * ALPHA_OPAQUE;
FadeInPixmap->SetAlpha(Alpha);
if (t >= 1)
FadeInPixmap = NULL;
Animated = true;
}
if (FadeOutPixmap) {
double t = min(double(Now - Start) / FadeTime, 1.0);
int Alpha = ALPHA_OPAQUE - t * ALPHA_OPAQUE;
FadeOutPixmap->SetAlpha(Alpha);
if (t >= 1)
FadeOutPixmap = NULL;
Animated = true;
}
if (MovePixmap) {
double t = min(double(Now - Start) / MoveTime, 1.0);
int x = MoveStart.X() + t * (MoveEnd.X() - MoveStart.X());
int y = MoveStart.Y() + t * (MoveEnd.Y() - MoveStart.Y());
cRect r = MovePixmap->ViewPort();
r.SetPoint(x, y);
MovePixmap->SetViewPort(r);
if (t >= 1)
MovePixmap = NULL;
Animated = true;
}
if (TilePixmap) {
double t = min(double(Now - Start) / TileTime, 1.0);
int x = TileStart.X() + t * (TileEnd.X() - TileStart.X());
int y = TileStart.Y() + t * (TileEnd.Y() - TileStart.Y());
TilePixmap->SetDrawPortPoint(cPoint(x, y));
if (t >= 1) {
destroyablePixmap = TilePixmap;
TilePixmap = NULL;
}
Animated = true;
}
if (ScrollPixmap) {
if (int(Now - Start) > ScrollWaitTime) {
if (ScrollStartTime) {
double t = min(double(Now - ScrollStartTime) / ScrollLineTime, 1.0);
int x = ScrollStart.X() + t * (ScrollEnd.X() - ScrollStart.X());
int y = ScrollStart.Y() + t * (ScrollEnd.Y() - ScrollStart.Y());
ScrollPixmap->SetDrawPortPoint(cPoint(x, y));
if (t >= 1) {
if (int(Now - Start) < ScrollTotalTime) {
cRect r = ScrollPixmap->DrawPort();
r.SetPoint(-r.X(), -r.Y());
ScrollPixmap->Pan(cPoint(0, 0), r);
const cFont *Font = cFont::GetFont(fontOsd);
cString s = cString::sprintf("Line %d", ++ScrollLineNumber);
ScrollPixmap->DrawRectangle(cRect(0, ScrollPixmap->ViewPort().Height(), ScrollPixmap->DrawPort().Width(), ScrollPixmap->DrawPort().Height()), clrTransparent);
ScrollPixmap->DrawText(cPoint(0, ScrollPixmap->ViewPort().Height()), s, clrYellow, clrTransparent, Font);
ScrollStartTime = Now;
}
else {
FadeOutPixmap = ScrollPixmap;
ScrollPixmap = NULL;
Start = cTimeMs::Now();
}
}
}
else
ScrollStartTime = Now;
}
Animated = true;
}
if (AnimPixmap) {
int d = AnimPixmap->ViewPort().Height();
if (clockwise)
d = -d;
cPoint p = AnimPixmap->DrawPort().Point().Shifted(0, d);
if (clockwise && p.Y() <= -AnimPixmap->DrawPort().Height())
p.SetY(0);
else if (!clockwise && p.Y() > 0)
p.SetY(-(AnimPixmap->DrawPort().Height() - AnimPixmap->ViewPort().Height()));
AnimPixmap->SetDrawPortPoint(p);
}
if (!Animated) {
switch (State) {
case 0: {
if (cFont *Font = cFont::CreateFont(DefaultFontOsd, osd->Height() / 10)) {
FadeInPixmap = CreateTextPixmap("VDR", Line, 1, clrYellow, clrTransparent, Font);
if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
delete Font;
Start = cTimeMs::Now();
}
State++;
}
break;
case 1: {
FadeInPixmap = CreateTextPixmap("Video Disk Recorder", Line, 3, clrYellow, clrTransparent);
if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
Start = cTimeMs::Now();
State++;
}
break;
case 2: {
FadeInPixmap = CreateTextPixmap("True Color OSD Demo", Line, 1, clrYellow, clrTransparent);
if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
Start = cTimeMs::Now();
State++;
}
break;
case 3: {
if (cFont *Font = cFont::CreateFont(DefaultFontOsd, osd->Height() / 10)) {
NextPixmap = CreateTextPixmap("Millions of colors", Line, 1, clrYellow, clrTransparent, Font);
delete Font;
if (NextPixmap) {
FadeInPixmap = NextPixmap;
Start = cTimeMs::Now();
StartLine = Line;
Line += NextPixmap->DrawPort().Height();
}
}
State++;
}
break;
case 4: {
Line += osd->Height() / 10;
int w = osd->Width() / 2;
int h = osd->Height() - Line - osd->Height() / 10;
cImage Image(cSize(w, h));
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++)
Image.SetPixel(cPoint(x, y), HsvToColor(360 * double(x) / w, 1 - double(y) / h, 1) | 0xDF000000);
}
if (cPixmap *Pixmap = osd->CreatePixmap(2, cRect((osd->Width() - w) / 2, Line, w, h))) {
Pixmap->DrawImage(cPoint(0, 0), Image);
toggleablePixmap = Pixmap;
}
State++;
}
break;
case 5: {
if (NextPixmap) {
MovePixmap = NextPixmap;
MoveStart = MovePixmap->ViewPort().Point();
MoveEnd.Set(osd->Width() - MovePixmap->ViewPort().Width(), osd->Height() - MovePixmap->ViewPort().Height());
Start = cTimeMs::Now();
}
State++;
}
break;
case 6: {
TilePixmap = CreateTextPixmap("Tiled Pixmaps", StartLine, 1, clrRed, clrWhite);
if (TilePixmap) {
TilePixmap->SetViewPort(TilePixmap->ViewPort().Grown(TilePixmap->DrawPort().Width(), TilePixmap->DrawPort().Height()));
TilePixmap->SetAlpha(200);
TilePixmap->SetTile(true);
TileStart = TilePixmap->DrawPort().Point();
TileEnd = TileStart.Shifted(TilePixmap->ViewPort().Width(), TilePixmap->ViewPort().Height());
MovePixmap = TilePixmap;
MoveStart = MovePixmap->ViewPort().Point();
MoveEnd.Set(10, osd->Height() - MovePixmap->ViewPort().Height() - 10);
Start = cTimeMs::Now();
}
State++;
}
break;
case 7: {
const cFont *Font = cFont::GetFont(fontOsd);
const char *Text = "Scrolling Pixmaps";
int w = Font->Width(Text);
int h = Font->Height();
if (cPixmap *Pixmap = osd->CreatePixmap(2, cRect((osd->Width() - w) / 2, StartLine, w, 2 * h), cRect(0, 0, w, 3 * h))) {
Pixmap->Clear();
Pixmap->DrawText(cPoint(0, 0), Text, clrYellow, clrTransparent, Font);
cString s = cString::sprintf("Line %d", ++ScrollLineNumber);
Pixmap->DrawText(cPoint(0, Pixmap->ViewPort().Height()), s, clrYellow, clrTransparent, Font);
ScrollPixmap = Pixmap;
ScrollStart.Set(0, 0);
ScrollEnd.Set(0, -h);
Start = cTimeMs::Now();
}
State++;
}
break;
case 8: {
const cFont *Font = cFont::GetFont(fontSml);
const char *Text = "Animation";
const int Size = Font->Width(Text) + 10;
const int NumDots = 12;
const int AnimFrames = NumDots;
// 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));
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 yc = Frame * Size + Size / 2 - Diameter / 2;
int Color = 0xFF;
int Delta = Color / NumDots / 3;
for (int a = 0; a < NumDots; a++) {
double t = 2 * M_PI * (Frame + a) / NumDots;
int x = xc + ((Size - Diameter) / 2 - 5) * cos(t);
int y = yc + ((Size - Diameter) / 2 - 5) * sin(t);
AnimPixmap->DrawEllipse(cRect(x, y, Diameter, Diameter), ArgbToColor(0xFF, Color, Color, Color));
Color -= Delta;
}
AnimPixmap->DrawText(cPoint(0, Frame * Size), Text, clrBlack, clrTransparent, cFont::GetFont(fontSml), Size, Size, taCenter);
}
AnimPixmap->SetLayer(3); // now setting the actual pixmap layer
FadeInPixmap = AnimPixmap;
LOCK_THREAD;
OldCursor = cursor = AnimPixmap->ViewPort().Point();
cursorLimits.Set(0, 0, osd->Width(), osd->Height());
cursorLimits.SetRight(cursorLimits.Right() - Size);
cursorLimits.SetBottom(cursorLimits.Bottom() - Size);
cursorLimits.Grow(-10, -10);
Start = cTimeMs::Now();
}
State++;
}
break;
case 9: {
LOCK_THREAD;
if (cursor != OldCursor) {
MovePixmap = AnimPixmap;
MoveStart = MovePixmap->ViewPort().Point();
MoveEnd = OldCursor = cursor;
MoveTime = 500;
Start = cTimeMs::Now();
}
}
break;
}
}
osd->Flush();
cPixmap::Unlock();
int Delta = cTimeMs::Now() - Now;
if (Delta < FrameTime)
cCondWait::SleepMs(FrameTime - Delta);
}
}
void cTrueColorDemo::Show(void)
{
osd = cOsdProvider::NewOsd(cOsd::OsdLeft(), cOsd::OsdTop(), 50);
if (osd) {
tArea Area = { 0, 0, cOsd::OsdWidth() - 1, cOsd::OsdHeight() - 1, 32 };
if (osd->SetAreas(&Area, 1) == oeOk) {
osd->DrawRectangle(0, 0, osd->Width() -1 , osd->Height() - 1, clrGray50);
osd->Flush();
Start();
}
}
}
eOSState cTrueColorDemo::ProcessKey(eKeys Key)
{
eOSState state = cOsdObject::ProcessKey(Key);
if (state == osUnknown) {
LOCK_PIXMAPS;
LOCK_THREAD;
const int d = 80;
switch (Key & ~k_Repeat) {
case kUp: cursor.SetY(max(cursorLimits.Top(), cursor.Y() - d)); clockwise = false; break;
case kDown: cursor.SetY(min(cursorLimits.Bottom(), cursor.Y() + d)); clockwise = true; break;
case kLeft: cursor.SetX(max(cursorLimits.Left(), cursor.X() - d)); clockwise = false; break;
case kRight: cursor.SetX(min(cursorLimits.Right(), cursor.X() + d)); clockwise = true; break;
case kRed: if (destroyablePixmap) {
osd->DestroyPixmap(destroyablePixmap);
destroyablePixmap = NULL;
}
break;
case kGreen: if (toggleablePixmap)
toggleablePixmap->SetLayer(-toggleablePixmap->Layer());
break;
case kOk: return osEnd;
default: return state;
}
state = osContinue;
}
return state;
}
// --- cPluginOsddemo --------------------------------------------------------
class cPluginOsddemo : public cPlugin {
private:
// Add any member variables or functions you may need here.
public:
cPluginOsddemo(void);
virtual ~cPluginOsddemo();
virtual const char *Version(void) { return VERSION; }
virtual const char *Description(void) { return DESCRIPTION; }
virtual const char *CommandLineHelp(void);
virtual bool ProcessArgs(int argc, char *argv[]);
virtual bool Start(void);
virtual void Housekeeping(void);
virtual const char *MainMenuEntry(void) { return MAINMENUENTRY; }
virtual cOsdObject *MainMenuAction(void);
virtual cMenuSetupPage *SetupMenu(void);
virtual bool SetupParse(const char *Name, const char *Value);
};
cPluginOsddemo::cPluginOsddemo(void)
{
// Initialize any member variables here.
// DON'T DO ANYTHING ELSE THAT MAY HAVE SIDE EFFECTS, REQUIRE GLOBAL
// VDR OBJECTS TO EXIST OR PRODUCE ANY OUTPUT!
}
cPluginOsddemo::~cPluginOsddemo()
{
// Clean up after yourself!
}
const char *cPluginOsddemo::CommandLineHelp(void)
{
// Return a string that describes all known command line options.
return NULL;
}
bool cPluginOsddemo::ProcessArgs(int argc, char *argv[])
{
// Implement command line argument processing here if applicable.
return true;
}
bool cPluginOsddemo::Start(void)
{
// Start any background activities the plugin shall perform.
return true;
}
void cPluginOsddemo::Housekeeping(void)
{
// Perform any cleanup or other regular tasks.
}
cOsdObject *cPluginOsddemo::MainMenuAction(void)
{
// Perform the action when selected from the main VDR menu.
if (cOsdProvider::SupportsTrueColor())
return new cTrueColorDemo;
return new cLineGame;
}
cMenuSetupPage *cPluginOsddemo::SetupMenu(void)
{
// Return a setup menu in case the plugin supports one.
return NULL;
}
bool cPluginOsddemo::SetupParse(const char *Name, const char *Value)
{
// Parse your own setup parameters and store their values.
return false;
}
VDRPLUGINCREATOR(cPluginOsddemo); // Don't touch this!
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