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Implemented scaling of SPU bitmaps

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This commit is contained in:
Klaus Schmidinger
2013-01-20 10:43:32 +01:00
parent 6a8a790312
commit db98ecf54e
4 changed files with 87 additions and 28 deletions
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1
CONTRIBUTORS
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@@ -2712,6 +2712,7 @@ Johann Friedrichs <johann.friedrichs@web.de>
for some fixes to dvbspu.[hc]
for fixing a busy loop when moving editing marks
for making cPalette::ClosestColor() treat fully transparent colors as "equal"
for implementing scaling of SPU bitmaps
Timo Helkio <timolavi@mbnet.fi>
for reporting a hangup when replaying a TS recording with subtitles activated

3
HISTORY
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@@ -7494,7 +7494,7 @@ Video Disk Recorder Revision History
use it.
- Added maximum SNR value for PCTV Systems PCTV 73ESE (thanks to Cedric Dewijs).
2013-01-17: Version 1.7.36
2013-01-20: Version 1.7.36
- Added maximum SNR value for PCTV Systems nanoStick T2 290e (thanks to Antti
Hartikainen).
@@ -7529,3 +7529,4 @@ Video Disk Recorder Revision History
"Resume" key in the main menu to work even after a restart of VDR.
- The SVDRP command NEWT no longer checks whether a timer with the given data already
exists (suggested by Malte Forkel).
- Implemented scaling of SPU bitmaps (thanks to Johann Friedrichs).

104
dvbspu.c
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@@ -8,7 +8,7 @@
*
* parts of this file are derived from the OMS program.
*
* $Id: dvbspu.c 2.9 2011/12/10 14:39:19 kls Exp $
* $Id: dvbspu.c 2.10 2013/01/20 10:36:58 kls Exp $
*/
#include "dvbspu.h"
@@ -54,6 +54,7 @@ void cDvbSpuPalette::setPalette(const uint32_t * pal)
#define setMin(a, b) if (a > b) a = b
#define setMax(a, b) if (a < b) a = b
// DVD SPU bitmaps cover max. 720 x 576 - this sizes the SPU bitmap
#define spuXres 720
#define spuYres 576
@@ -243,6 +244,36 @@ cDvbSpuDecoder::~cDvbSpuDecoder()
delete osd;
}
// SPUs must be scaled if screensize is not 720x576
void cDvbSpuDecoder::SetSpuScaling(void)
{
int Width = spuXres;
int Height = spuYres;
int OsdWidth = 0;
int OsdHeight = 0;
double VideoAspect;
cDevice::PrimaryDevice()->GetOsdSize(OsdWidth, OsdHeight, VideoAspect);
DEBUG("dvbspu SetSpuScaling OsdSize %d x %d\n", OsdWidth, OsdHeight);
if (!OsdWidth) { // guess correct size
if (Setup.OSDWidth <= 720 || Setup.OSDHeight <= 576)
xscaling = yscaling = 1.0;
else if (Setup.OSDWidth <= 1280 || Setup.OSDHeight <= 720) {
xscaling = 1280.0 / Width;
yscaling = 720.0 / Height;
}
else {
xscaling = 1920.0 / Width;
yscaling = 1080.0/ Height;
}
}
else {
xscaling = (double)OsdWidth / Width;
yscaling = (double)OsdHeight / Height;
}
DEBUG("dvbspu xscaling = %f yscaling = %f\n", xscaling, yscaling);
}
void cDvbSpuDecoder::processSPU(uint32_t pts, uint8_t * buf, bool AllowedShow)
{
setTime(pts);
@@ -296,6 +327,7 @@ void cDvbSpuDecoder::setHighlight(uint16_t sx, uint16_t sy,
memcpy(hlpDescr, pld, sizeof(aDvbSpuPalDescr));
highlight = true;
clean = false;
Draw(); // we have to trigger Draw() here
}
}
@@ -376,32 +408,52 @@ void cDvbSpuDecoder::Draw(void)
return;
}
sDvbSpuRect bgsize;
sDvbSpuRect drawsize;
sDvbSpuRect bgdrawsize;
cBitmap *fg = NULL;
cBitmap *bg = NULL;
cBitmap *tmp = NULL;
if (highlight)
fg = spubmp->getBitmap(hlpDescr, palette, hlpsize);
SetSpuScaling(); // always set current scaling, size could have changed
if (spubmp->getMinSize(palDescr, bgsize))
bg = spubmp->getBitmap(palDescr, palette, bgsize);
if (highlight) {
tmp = spubmp->getBitmap(hlpDescr, palette, hlpsize);
fg = tmp->Scaled(xscaling, yscaling, true);
drawsize.x1 = hlpsize.x1 * xscaling;
drawsize.y1 = hlpsize.y1 * yscaling;
drawsize.x2 = drawsize.x1 + fg->Width();
drawsize.y2 = drawsize.y1 + fg->Height();
}
if (!fg || !bg || !osd)
if (spubmp->getMinSize(palDescr, bgsize)) {
tmp = spubmp->getBitmap(palDescr, palette, bgsize);
bg = tmp->Scaled(xscaling, yscaling, true);
bgdrawsize.x1 = bgsize.x1 * xscaling;
bgdrawsize.y1 = bgsize.y1 * yscaling;
bgdrawsize.x2 = bgdrawsize.x1 + bg->Width();
bgdrawsize.y2 = bgdrawsize.y1 + bg->Height();
}
if (osd) // always rewrite OSD
Hide();
if (osd == NULL) {
restricted_osd = false;
osd = cOsdProvider::NewOsd(0, 0);
tArea Area = { size.x1, size.y1, size.x2, size.y2, 4};
if (osd->CanHandleAreas(&Area, 1) != oeOk)
restricted_osd = true;
sDvbSpuRect areaSize = CalcAreaSize(drawsize, fg, bgdrawsize, bg); // combine
tArea Area = { areaSize.x1, areaSize.y1, areaSize.x2, areaSize.y2, 4 };
if (osd->CanHandleAreas(&Area, 1) != oeOk) {
DEBUG("dvbspu CanHandleAreas (%d,%d)x(%d,%d), 4 failed\n", areaSize.x1, areaSize.y1, areaSize.x2, areaSize.y2);
restricted_osd = true;
}
else
osd->SetAreas(&Area, 1);
}
if (restricted_osd) {
sDvbSpuRect hlsize;
bool setarea = false;
/* reduce fg area (only valid if there is no bg below) */
/* reduce fg area */
if (fg) {
spubmp->getMinSize(hlpDescr,hlsize);
/* clip to the highligh area */
@@ -409,11 +461,15 @@ void cDvbSpuDecoder::Draw(void)
setMax(hlsize.y1, hlpsize.y1);
setMin(hlsize.x2, hlpsize.x2);
setMin(hlsize.y2, hlpsize.y2);
if (hlsize.x1 > hlsize.x2 || hlsize.y1 > hlsize.y2) {
if (hlsize.x1 > hlsize.x2 || hlsize.y1 > hlsize.y2)
hlsize.x1 = hlsize.x2 = hlsize.y1 = hlsize.y2 = 0;
}
/* resize scaled fg */
drawsize.x1=hlsize.x1 * xscaling;
drawsize.y1=hlsize.y1 * yscaling;
drawsize.x2=hlsize.x2 * xscaling;
drawsize.y2=hlsize.y2 * yscaling;
}
sDvbSpuRect areaSize = CalcAreaSize((fg && bg) ? hlpsize : hlsize, fg, bgsize, bg);
sDvbSpuRect areaSize = CalcAreaSize(drawsize, fg, bgdrawsize, bg);
#define DIV(a, b) (a/b)?:1
for (int d = 1; !setarea && d <= 2; d++) {
@@ -431,16 +487,11 @@ void cDvbSpuDecoder::Draw(void)
/* second try to split area if there is both area */
if (!setarea && fg && bg) {
tArea Area_Both [2] = {
{bgsize.x1, bgsize.y1, bgsize.x2, bgsize.y2, DIV(CalcAreaBpp(0, bg), d)},
{hlpsize.x1, hlpsize.y1, hlpsize.x2, hlpsize.y2, DIV(CalcAreaBpp(fg, 0), d)}
{ bgdrawsize.x1, bgdrawsize.y1, bgdrawsize.x2, bgdrawsize.y2, DIV(CalcAreaBpp(0, bg), d) },
{ drawsize.x1, drawsize.y1, drawsize.x2, drawsize.y2, DIV(CalcAreaBpp(fg, 0), d) }
};
if (!Area_Both[0].Intersects(Area_Both[1])) {
/* there is no intersection. We can reduce hl */
Area_Both[1].x1 = hlsize.x1;
Area_Both[1].y1 = hlsize.y1;
Area_Both[1].x2 = hlsize.x2;
Area_Both[1].y2 = hlsize.y2;
/* there is no intersection. We can try with split areas */
if ((Area_Both[0].Width() & 7) != 0)
Area_Both[0].x2 += 8 - (Area_Both[0].Width() & 7);
if ((Area_Both[1].Width() & 7) != 0)
@@ -451,18 +502,21 @@ void cDvbSpuDecoder::Draw(void)
}
}
}
if (!setarea)
dsyslog("dvbspu: AreaSize (%d, %d) (%d, %d) Bpp %d", areaSize.x1, areaSize.y1, areaSize.x2, areaSize.y2, (fg && bg) ? 4 : 2 );
if (setarea)
DEBUG("dvbspu: reduced AreaSize (%d, %d) (%d, %d) Bpp %d\n", areaSize.x1, areaSize.y1, areaSize.x2, areaSize.y2, (fg && bg) ? 4 : 2);
else
dsyslog("dvbspu: reduced AreaSize (%d, %d) (%d, %d) Bpp %d failed", areaSize.x1, areaSize.y1, areaSize.x2, areaSize.y2, (fg && bg) ? 4 : 2);
}
/* we could draw use DrawPixel on osd */
if (bg || fg) {
if (bg)
osd->DrawBitmap(bgsize.x1, bgsize.y1, *bg);
osd->DrawBitmap(bgdrawsize.x1, bgdrawsize.y1, *bg);
if (fg)
osd->DrawBitmap(hlpsize.x1, hlpsize.y1, *fg);
osd->DrawBitmap(drawsize.x1, drawsize.y1, *fg);
delete fg;
delete bg;
delete tmp;
osd->Flush();
}

7
dvbspu.h
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@@ -8,13 +8,14 @@
*
* parts of this file are derived from the OMS program.
*
* $Id: dvbspu.h 2.5 2011/03/27 14:50:48 kls Exp $
* $Id: dvbspu.h 2.6 2013/01/20 10:15:47 kls Exp $
*/
#ifndef __DVBSPU_H
#define __DVBSPU_H
#include <inttypes.h>
#include "device.h"
#include "osd.h"
#include "spu.h"
#include "thread.h"
@@ -106,7 +107,8 @@ class cDvbSpuDecoder:public cSpuDecoder {
enum spFlag { spNONE, spHIDE, spSHOW, spMENU };
spFlag state;
cSpuDecoder::eScaleMode scaleMode;
cSpuDecoder::eScaleMode scaleMode;
double xscaling, yscaling;
//highligh area
bool highlight;
@@ -133,6 +135,7 @@ class cDvbSpuDecoder:public cSpuDecoder {
return ((spu[0] << 8) | spu[1]);
};
void SetSpuScaling(void);
sDvbSpuRect CalcAreaSize(sDvbSpuRect fgsize, cBitmap *fgbmp, sDvbSpuRect bgsize, cBitmap *bgbmp);
int CalcAreaBpp(cBitmap *fgbmp, cBitmap *bgbmp);