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No longer using GetFont() (which is not thread safe) in the 'osddemo' plugin

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This commit is contained in:
Klaus Schmidinger
2012-03-13 15:28:15 +01:00
parent 71f02e4f80
commit 4bc2a502a4
3 changed files with 34 additions and 34 deletions
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4
PLUGINS/src/osddemo/HISTORY
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@@ -34,3 +34,7 @@ VDR Plugin 'osddemo' Revision History
2011-04-17: Version 0.2.2
- Fixed a possible NULL pointer dereference in osddemo.c (reported by Paul Menzel).
2012-03-13: Version 0.2.3
- No longer using GetFont() (which is not thread safe) in the 'osddemo' plugin,

63
PLUGINS/src/osddemo/osddemo.c
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@@ -3,13 +3,13 @@
*
* 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 $
* $Id: osddemo.c 2.6 2012/03/13 15:17:33 kls Exp $
*/
#include <vdr/osd.h>
#include <vdr/plugin.h>
static const char *VERSION = "0.2.2";
static const char *VERSION = "0.2.3";
static const char *DESCRIPTION = "Demo of arbitrary OSD setup";
static const char *MAINMENUENTRY = "Osd Demo";
@@ -85,7 +85,7 @@ private:
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);
cPixmap *CreateTextPixmap(const char *s, int Line, int Layer, tColor ColorFg, tColor ColorBg, const cFont *Font);
public:
cTrueColorDemo(void);
virtual ~cTrueColorDemo();
@@ -109,8 +109,6 @@ cTrueColorDemo::~cTrueColorDemo()
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));
@@ -131,6 +129,9 @@ void cTrueColorDemo::Action(void)
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);
int FrameTime = 40; // ms
int FadeTime = 1000; // ms
int MoveTime = 4000; // ms
@@ -202,10 +203,9 @@ void cTrueColorDemo::Action(void)
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);
ScrollPixmap->DrawText(cPoint(0, ScrollPixmap->ViewPort().Height()), s, clrYellow, clrTransparent, OsdFont);
ScrollStartTime = Now;
}
else {
@@ -234,18 +234,15 @@ void cTrueColorDemo::Action(void)
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();
}
FadeInPixmap = CreateTextPixmap("VDR", Line, 1, clrYellow, clrTransparent, LrgFont);
if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
Start = cTimeMs::Now();
State++;
}
break;
case 1: {
FadeInPixmap = CreateTextPixmap("Video Disk Recorder", Line, 3, clrYellow, clrTransparent);
FadeInPixmap = CreateTextPixmap("Video Disk Recorder", Line, 3, clrYellow, clrTransparent, OsdFont);
if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
Start = cTimeMs::Now();
@@ -253,7 +250,7 @@ void cTrueColorDemo::Action(void)
}
break;
case 2: {
FadeInPixmap = CreateTextPixmap("True Color OSD Demo", Line, 1, clrYellow, clrTransparent);
FadeInPixmap = CreateTextPixmap("True Color OSD Demo", Line, 1, clrYellow, clrTransparent, OsdFont);
if (FadeInPixmap)
Line += FadeInPixmap->DrawPort().Height();
Start = cTimeMs::Now();
@@ -261,15 +258,12 @@ void cTrueColorDemo::Action(void)
}
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();
}
NextPixmap = CreateTextPixmap("Millions of colors", Line, 1, clrYellow, clrTransparent, LrgFont);
if (NextPixmap) {
FadeInPixmap = NextPixmap;
Start = cTimeMs::Now();
StartLine = Line;
Line += NextPixmap->DrawPort().Height();
}
State++;
}
@@ -301,7 +295,7 @@ void cTrueColorDemo::Action(void)
}
break;
case 6: {
TilePixmap = CreateTextPixmap("Tiled Pixmaps", StartLine, 1, clrRed, clrWhite);
TilePixmap = CreateTextPixmap("Tiled Pixmaps", StartLine, 1, clrRed, clrWhite, OsdFont);
if (TilePixmap) {
TilePixmap->SetViewPort(TilePixmap->ViewPort().Grown(TilePixmap->DrawPort().Width(), TilePixmap->DrawPort().Height()));
TilePixmap->SetAlpha(200);
@@ -317,15 +311,14 @@ void cTrueColorDemo::Action(void)
}
break;
case 7: {
const cFont *Font = cFont::GetFont(fontOsd);
const char *Text = "Scrolling Pixmaps";
int w = Font->Width(Text);
int h = Font->Height();
int w = OsdFont->Width(Text);
int h = OsdFont->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);
Pixmap->DrawText(cPoint(0, 0), Text, clrYellow, clrTransparent, OsdFont);
cString s = cString::sprintf("Line %d", ++ScrollLineNumber);
Pixmap->DrawText(cPoint(0, Pixmap->ViewPort().Height()), s, clrYellow, clrTransparent, Font);
Pixmap->DrawText(cPoint(0, Pixmap->ViewPort().Height()), s, clrYellow, clrTransparent, OsdFont);
ScrollPixmap = Pixmap;
ScrollStart.Set(0, 0);
ScrollEnd.Set(0, -h);
@@ -335,9 +328,8 @@ void cTrueColorDemo::Action(void)
}
break;
case 8: {
const cFont *Font = cFont::GetFont(fontSml);
const char *Text = "Animation";
const int Size = Font->Width(Text) + 10;
const int Size = SmlFont->Width(Text) + 10;
const int NumDots = 12;
const int AnimFrames = NumDots;
// Temporarily using pixmap layer 0 to have the text alpha blended:
@@ -359,7 +351,7 @@ 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, cFont::GetFont(fontSml), Size, Size, taCenter);
AnimPixmap->DrawText(cPoint(0, Frame * Size), Text, clrBlack, clrTransparent, SmlFont, Size, Size, taCenter);
}
AnimPixmap->SetLayer(3); // now setting the actual pixmap layer
FadeInPixmap = AnimPixmap;
@@ -393,6 +385,9 @@ void cTrueColorDemo::Action(void)
if (Delta < FrameTime)
cCondWait::SleepMs(FrameTime - Delta);
}
delete OsdFont;
delete SmlFont;
delete LrgFont;
}
void cTrueColorDemo::Show(void)