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Added a demo case for storing images

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This commit is contained in:
Klaus Schmidinger
2015-04-12 10:37:36 +02:00
parent 38ee88e5ee
commit e6592e6201
2 changed files with 52 additions and 1 deletions
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1
PLUGINS/src/osddemo/HISTORY
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@@ -78,3 +78,4 @@ VDR Plugin 'osddemo' Revision History
- Now using cOsd::MaxPixmapSize().
- Fixed a vertical black line in the "TiledPixmaps" area on the rpihddevice OSD with
1280x800 pixel (thanks to Thomas Reufer).
- Added a demo case for storing images (thanks to Thomas Reufer).

52
PLUGINS/src/osddemo/osddemo.c
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@@ -3,7 +3,7 @@
*
* See the README file for copyright information and how to reach the author.
*
* $Id: osddemo.c 4.2 2015/03/08 16:42:01 kls Exp $
* $Id: osddemo.c 4.3 2015/04/12 09:35:21 kls Exp $
*/
#include <vdr/osd.h>
@@ -90,6 +90,52 @@ void DrawSlopes(cOsd *Osd)
Osd->Flush();
}
// --- DrawImages ------------------------------------------------------------
struct tOsdImageRef {
int image;
cSize size;
};
#define NUMOSDIMAGES 16
#define NUMOSDIMAGEVARIANTS 8
void DrawImages(cOsd *Osd)
{
// Create images:
cImage *images[NUMOSDIMAGEVARIANTS];
for (int i = 0; i < NUMOSDIMAGEVARIANTS; i++) {
images[i] = new cImage(cSize(
i == 0 || i == 1 ? Osd->MaxPixmapSize().Width() + 1 : rand() % Osd->Width(),
i == 0 || i == 2 ? Osd->MaxPixmapSize().Height() + 1 : rand() % Osd->Height()));
for (int x = 0; x < images[i]->Width(); x++) {
for (int y = 0; y < images[i]->Height(); y++) {
images[i]->SetPixel(cPoint(x, y),
(!x || !y || x == images[i]->Width() - 1 || y == images[i]->Height() - 1) ? clrWhite :
(x > images[i]->Width() / 2 ?
(y > images[i]->Height() / 2 ? clrBlue : clrGreen) :
(y > images[i]->Height() / 2 ? clrRed : clrYellow)));
}
}
}
// Store images:
tOsdImageRef osdImages[NUMOSDIMAGES];
for (int i = 0; i < NUMOSDIMAGES; i++) {
osdImages[i].image = cOsdProvider::StoreImage(*images[i % NUMOSDIMAGEVARIANTS]);
osdImages[i].size.Set(images[i % NUMOSDIMAGEVARIANTS]->Size());
}
// Delete images:
for (int i = 0; i < NUMOSDIMAGEVARIANTS; i++)
delete images[i];
// Draw images:
for (int i = 0; i < NUMOSDIMAGES; i++)
Osd->DrawImage(cPoint(rand() % (Osd->Width() + osdImages[i].size.Width()), rand() % (Osd->Height() + osdImages[i].size.Height())).Shifted(-osdImages[i].size.Width(), -osdImages[i].size.Height()), osdImages[i].image);
// Drop image references:
for (int i = 0; i < NUMOSDIMAGES; i++)
cOsdProvider::DropImage(osdImages[i].image);
Osd->Flush();
}
// --- cLineGame -------------------------------------------------------------
class cLineGame : public cOsdObject {
@@ -540,6 +586,10 @@ eOSState cTrueColorDemo::ProcessKey(eKeys Key)
SetArea();
DrawSlopes(osd);
break;
case k3: Cancel(3);
SetArea();
DrawImages(osd);
break;
case kBack:
case kOk: return osEnd;
default: return state;