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vdr/PLUGINS/src/osddemo/osddemo.c

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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.
*
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* $Id: osddemo.c 2.12 2013/03/31 09:30:18 kls Exp $
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*/
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#include <vdr/osd.h>
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#include <vdr/plugin.h>
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static const char *VERSION = "2.0.0";
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static const char *DESCRIPTION = "Demo of arbitrary OSD setup";
static const char *MAINMENUENTRY = "Osd Demo";
// --- DrawEllipses ----------------------------------------------------------
void DrawEllipse(cOsd *Osd, int x1, int y1, int x2, int y2, int Quadrants)
{
Osd->DrawRectangle(x1 + 2, y1 + 2, x2 - 2, y2 - 2, clrGreen);
Osd->DrawEllipse(x1 + 3, y1 + 3, x2 - 3, y2 - 3, clrRed, Quadrants);
}
void DrawEllipses(cOsd *Osd)
{
int xa = 0;
int ya = 0;
int xb = Osd->Width() - 1;
int yb = Osd->Height() - 1;
int x0 = xa;
int x5 = xb;
int x1 = x0 + (xb - xa) / 5;
int x2 = x0 + (xb - xa) * 2 / 5;
int x3 = x0 + (xb - xa) * 3 / 5;
int x4 = x0 + (xb - xa) * 4 / 5;
int y0 = ya;
int y4 = yb;
int y2 = (y0 + y4) / 2;
int y1 = (y0 + y2) / 2;
int y3 = (y2 + y4) / 2;
Osd->DrawRectangle(xa, ya, xb, yb, clrGray50);
DrawEllipse(Osd, x4, y0, x5, y4, 0);
DrawEllipse(Osd, x2, y1, x3, y2, 1);
DrawEllipse(Osd, x1, y1, x2, y2, 2);
DrawEllipse(Osd, x1, y2, x2, y3, 3);
DrawEllipse(Osd, x2, y2, x3, y3, 4);
DrawEllipse(Osd, x3, y1, x4, y3, 5);
DrawEllipse(Osd, x1, y0, x3, y1, 6);
DrawEllipse(Osd, x0, y1, x1, y3, 7);
DrawEllipse(Osd, x1, y3, x3, y4, 8);
DrawEllipse(Osd, x3, y0, x4, y1, -1);
DrawEllipse(Osd, x0, y0, x1, y1, -2);
DrawEllipse(Osd, x0, y3, x1, y4, -3);
DrawEllipse(Osd, x3, y3, x4, y4, -4);
Osd->Flush();
}
// --- DrawSlopes ------------------------------------------------------------
void DrawSlope(cOsd *Osd, int x1, int y1, int x2, int y2, int Type)
{
Osd->DrawRectangle(x1 + 2, y1 + 2, x2 - 2, y2 - 2, clrGreen);
Osd->DrawSlope(x1 + 3, y1 + 3, x2 - 3, y2 - 3, clrRed, Type);
}
void DrawSlopes(cOsd *Osd)
{
int xa = 0;
int ya = 0;
int xb = Osd->Width() - 1;
int yb = Osd->Height() - 1;
int x0 = xa;
int x4 = xb;
int x2 = (x0 + x4) / 2;
int x1 = (x0 + x2) / 2;
int x3 = (x2 + x4) / 2;
int y0 = ya;
int y3 = yb;
int y2 = (y0 + y3) / 2;
int y1 = (y0 + y2) / 2;
Osd->DrawRectangle(xa, ya, xb, yb, clrGray50);
DrawSlope(Osd, x0, y0, x2, y1, 0);
DrawSlope(Osd, x2, y0, x4, y1, 1);
DrawSlope(Osd, x0, y1, x2, y2, 2);
DrawSlope(Osd, x2, y1, x4, y2, 3);
DrawSlope(Osd, x0, y2, x1, y3, 4);
DrawSlope(Osd, x1, y2, x2, y3, 5);
DrawSlope(Osd, x2, y2, x3, y3, 6);
DrawSlope(Osd, x3, y2, x4, y3, 7);
Osd->Flush();
}
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// --- cLineGame -------------------------------------------------------------
class cLineGame : public cOsdObject {
private:
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cOsd *osd;
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int x;
int y;
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tColor color;
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public:
cLineGame(void);
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virtual ~cLineGame();
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virtual void Show(void);
virtual eOSState ProcessKey(eKeys Key);
};
cLineGame::cLineGame(void)
{
osd = NULL;
x = y = 0;
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color = clrRed;
}
cLineGame::~cLineGame()
{
delete osd;
}
void cLineGame::Show(void)
{
osd = cOsdProvider::NewOsd(cOsd::OsdLeft(), cOsd::OsdTop(), 50);
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if (osd) {
int x1 = cOsd::OsdWidth() - 1;
int y1 = cOsd::OsdHeight() - 1;
while (x1 > 0 && y1 > 0) {
tArea Area = { 0, 0, x1, y1, 4 };
if (osd->CanHandleAreas(&Area, 1) == oeOk) {
osd->SetAreas(&Area, 1);
osd->DrawRectangle(0, 0, osd->Width() - 1, osd->Height() - 1, clrGray50);
osd->Flush();
x = osd->Width() / 2;
y = osd->Height() / 2;
break;
}
x1 = x1 * 9 / 10;
y1 = y1 * 9 / 10;
}
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}
}
eOSState cLineGame::ProcessKey(eKeys Key)
{
eOSState state = cOsdObject::ProcessKey(Key);
if (state == osUnknown) {
const int d = 4;
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switch (Key & ~k_Repeat) {
case kUp: y = max(0, y - d); break;
case kDown: y = min(osd->Height() - d, y + d); break;
case kLeft: x = max(0, x - d); break;
case kRight: x = min(osd->Width() - d, x + d); break;
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case kRed: color = clrRed; break;
case kGreen: color = clrGreen; break;
case kYellow: color = clrYellow; break;
case kBlue: color = clrBlue; break;
case k1: DrawEllipses(osd);
return osContinue;
case k2: DrawSlopes(osd);
return osContinue;
case kBack:
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case kOk: return osEnd;
default: return state;
}
osd->DrawRectangle(x, y, x + d - 1, y + d - 1, color);
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osd->Flush();
state = osContinue;
}
return state;
}
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// --- cTrueColorDemo --------------------------------------------------------
class cTrueColorDemo : public cOsdObject, public cThread {
private:
cOsd *osd;
cPoint cursor;
cRect cursorLimits;
bool clockwise;
cPixmap *destroyablePixmap;
cPixmap *toggleablePixmap;
bool SetArea(void);
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virtual void Action(void);
cPixmap *CreateTextPixmap(const char *s, int Line, int Layer, tColor ColorFg, tColor ColorBg, const cFont *Font);
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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()
{
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Cancel(3);
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delete osd;
}
cPixmap *cTrueColorDemo::CreateTextPixmap(const char *s, int Line, int Layer, tColor ColorFg, tColor ColorBg, const cFont *Font)
{
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;
cFont *OsdFont = cFont::CreateFont(Setup.FontOsd, Setup.FontOsdSize);
cFont *SmlFont = cFont::CreateFont(Setup.FontSml, Setup.FontSmlSize);
cFont *LrgFont = cFont::CreateFont(Setup.FontOsd, osd->Height() / 10);
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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);
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, OsdFont);
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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: {
FadeInPixmap = CreateTextPixmap("VDR", Line, 1, clrYellow, clrTransparent, LrgFont);
if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
Start = cTimeMs::Now();
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State++;
}
break;
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case 1: {
FadeInPixmap = CreateTextPixmap("Video Disk Recorder", Line, 3, clrYellow, clrTransparent, OsdFont);
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if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
Start = cTimeMs::Now();
State++;
}
break;
case 2: {
FadeInPixmap = CreateTextPixmap("True Color OSD Demo", Line, 1, clrYellow, clrTransparent, OsdFont);
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if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
Start = cTimeMs::Now();
State++;
}
break;
case 3: {
NextPixmap = CreateTextPixmap("Millions of colors", Line, 1, clrYellow, clrTransparent, LrgFont);
if (NextPixmap) {
FadeInPixmap = NextPixmap;
Start = cTimeMs::Now();
StartLine = Line;
Line += NextPixmap->DrawPort().Height();
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}
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, OsdFont);
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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 char *Text = "Scrolling Pixmaps";
int w = OsdFont->Width(Text);
int h = OsdFont->Height();
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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, OsdFont);
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cString s = cString::sprintf("Line %d", ++ScrollLineNumber);
Pixmap->DrawText(cPoint(0, Pixmap->ViewPort().Height()), s, clrYellow, clrTransparent, OsdFont);
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ScrollPixmap = Pixmap;
ScrollStart.Set(0, 0);
ScrollEnd.Set(0, -h);
Start = cTimeMs::Now();
}
State++;
}
break;
case 8: {
const char *Text = "Animation";
const int Size = SmlFont->Width(Text) + 10;
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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));
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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, SmlFont, Size, Size, taCenter);
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}
AnimPixmap->SetLayer(3); // now setting the actual pixmap layer
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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);
}
delete OsdFont;
delete SmlFont;
delete LrgFont;
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}
bool cTrueColorDemo::SetArea(void)
{
if (osd) {
tArea Area = { 0, 0, cOsd::OsdWidth() - 1, cOsd::OsdHeight() - 1, 32 };
return osd->SetAreas(&Area, 1) == oeOk;
}
return false;
}
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void cTrueColorDemo::Show(void)
{
osd = cOsdProvider::NewOsd(cOsd::OsdLeft(), cOsd::OsdTop(), 50);
if (osd) {
if (SetArea()) {
osd->DrawRectangle(0, 0, osd->Width() - 1, osd->Height() - 1, clrGray50);
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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 k1: Cancel(3);
SetArea();
DrawEllipses(osd);
break;
case k2: Cancel(3);
SetArea();
DrawSlopes(osd);
break;
case kBack:
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case kOk: return osEnd;
default: return state;
}
state = osContinue;
}
return state;
}
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// --- 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.
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if (cOsdProvider::SupportsTrueColor())
return new cTrueColorDemo;
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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!