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Added image flipping ability to MF Grabber

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This commit is contained in:
Paulchen Panther
2021-01-24 12:16:16 +01:00
parent d5717af2df
commit 4254f36bba
18 changed files with 255 additions and 164 deletions
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69
libsrc/grabber/qt/QtGrabber.cpp
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@@ -12,8 +12,8 @@ QtGrabber::QtGrabber(int cropLeft, int cropRight, int cropTop, int cropBottom, i
: Grabber("QTGRABBER", 0, 0, cropLeft, cropRight, cropTop, cropBottom)
, _display(unsigned(display))
, _pixelDecimation(pixelDecimation)
, _screenWidth(0)
, _screenHeight(0)
, _calculatedWidth(0)
, _calculatedHeight(0)
, _src_x(0)
, _src_y(0)
, _src_x_max(0)
@@ -98,20 +98,13 @@ int QtGrabber::grabFrame(Image<ColorRgb> & image)
setEnabled(setupDisplay());
return -1;
}
QPixmap originalPixmap = _screen->grabWindow(0, _src_x, _src_y, _src_x_max, _src_y_max);
QPixmap resizedPixmap = originalPixmap.scaled(_width,_height);
QImage imageFrame = resizedPixmap.toImage().convertToFormat( QImage::Format_RGB888);
image.resize(imageFrame.width(), imageFrame.height());
for (int y=0; y<imageFrame.height(); ++y)
for (int x=0; x<imageFrame.width(); ++x)
{
QColor inPixel(imageFrame.pixel(x,y));
ColorRgb & outPixel = image(x,y);
outPixel.red = inPixel.red();
outPixel.green = inPixel.green();
outPixel.blue = inPixel.blue();
}
QPixmap originalPixmap = _screen->grabWindow(0, _src_x, _src_y, _src_x_max, _src_y_max);
QImage imageFrame = originalPixmap.toImage().scaled(_calculatedWidth, _calculatedHeight).convertToFormat( QImage::Format_RGB888);
image.resize(_calculatedWidth, _calculatedHeight);
for (int y = 0; y < imageFrame.height(); y++)
memcpy((unsigned char*)image.memptr() + y * image.width() * 3, (unsigned char*)imageFrame.scanLine(y), imageFrame.width() * 3);
return 0;
}
@@ -122,59 +115,59 @@ int QtGrabber::updateScreenDimensions(bool force)
return -1;
const QRect& geo = _screen->geometry();
if (!force && _screenWidth == unsigned(geo.right()) && _screenHeight == unsigned(geo.bottom()))
if (!force && _width == unsigned(geo.right()) && _height == unsigned(geo.bottom()))
{
// No update required
return 0;
}
Info(_log, "Update of screen resolution: [%dx%d] to [%dx%d]", _screenWidth, _screenHeight, geo.right(), geo.bottom());
_screenWidth = geo.right() - geo.left();
_screenHeight = geo.bottom() - geo.top();
Info(_log, "Update of screen resolution: [%dx%d] to [%dx%d]", _width, _height, geo.right(), geo.bottom());
_width = geo.right() - geo.left();
_height = geo.bottom() - geo.top();
int width=0, height=0;
// Image scaling is performed by Qt
width = (_screenWidth > unsigned(_cropLeft + _cropRight))
? ((_screenWidth - _cropLeft - _cropRight) / _pixelDecimation)
: (_screenWidth / _pixelDecimation);
width = (_width > (_cropLeft + _cropRight))
? ((_width - _cropLeft - _cropRight) / _pixelDecimation)
: (_width / _pixelDecimation);
height = (_screenHeight > unsigned(_cropTop + _cropBottom))
? ((_screenHeight - _cropTop - _cropBottom) / _pixelDecimation)
: (_screenHeight / _pixelDecimation);
height = (_height > (_cropTop + _cropBottom))
? ((_height - _cropTop - _cropBottom) / _pixelDecimation)
: (_height / _pixelDecimation);
// calculate final image dimensions and adjust top/left cropping in 3D modes
switch (_videoMode)
{
case VideoMode::VIDEO_3DSBS:
_width = width /2;
_height = height;
_calculatedWidth = width /2;
_calculatedHeight = height;
_src_x = _cropLeft / 2;
_src_y = _cropTop;
_src_x_max = (_screenWidth / 2) - _cropRight;
_src_y_max = _screenHeight - _cropBottom;
_src_x_max = (_width / 2) - _cropRight - _cropLeft;
_src_y_max = _height - _cropBottom - _cropTop;
break;
case VideoMode::VIDEO_3DTAB:
_width = width;
_height = height / 2;
_calculatedWidth = width;
_calculatedHeight = height / 2;
_src_x = _cropLeft;
_src_y = _cropTop / 2;
_src_x_max = _screenWidth - _cropRight;
_src_y_max = (_screenHeight / 2) - _cropBottom;
_src_x_max = _width - _cropRight - _cropLeft;
_src_y_max = (_height / 2) - _cropBottom - _cropTop;
break;
case VideoMode::VIDEO_2D:
default:
_width = width;
_height = height;
_calculatedWidth = width;
_calculatedHeight = height;
_src_x = _cropLeft;
_src_y = _cropTop;
_src_x_max = _screenWidth - _cropRight;
_src_y_max = _screenHeight - _cropBottom;
_src_x_max = _width - _cropRight - _cropLeft;
_src_y_max = _height - _cropBottom - _cropTop;
break;
}
Info(_log, "Update output image resolution to [%dx%d]", _width, _height);
Info(_log, "Update output image resolution to [%dx%d]", _calculatedWidth, _calculatedHeight);
return 1;
}