void GLWidgetRendererPrivate::updateShaderIfNeeded()
{
const VideoFormat& fmt(video_frame.format());
if (fmt != video_format) {
qDebug("pixel format changed: %s => %s", qPrintable(video_format.name()), qPrintable(fmt.name()));
}
VideoMaterialType *newType = materialType(fmt);
if (material_type == newType)
return;
material_type = newType;
// http://forum.doom9.org/archive/index.php/t-160211.html
ColorTransform::ColorSpace cs = ColorTransform::RGB;
if (fmt.isRGB()) {
if (fmt.isPlanar())
cs = ColorTransform::GBR;
} else {
if (video_frame.width() >= 1280 || video_frame.height() > 576) //values from mpv
cs = ColorTransform::BT709;
else
cs = ColorTransform::BT601;
}
if (!prepareShaderProgram(fmt, cs)) {
qWarning("shader program create error...");
return;
} else {
qDebug("shader program created!!!");
}
}
void GLWidgetRendererPrivate::updateTexturesIfNeeded()
{
const VideoFormat &fmt = video_frame.format();
bool update_textures = false;
if (fmt != video_format) {
update_textures = true; //FIXME
qDebug("updateTexturesIfNeeded pixel format changed: %s => %s", qPrintable(video_format.name()), qPrintable(fmt.name()));
}
// effective size may change even if plane size not changed
if (update_textures
|| video_frame.bytesPerLine(0) != plane0Size.width() || video_frame.height() != plane0Size.height()
|| (plane1_linesize > 0 && video_frame.bytesPerLine(1) != plane1_linesize)) { // no need to check height if plane 0 sizes are equal?
update_textures = true;
qDebug("---------------------update texture: %dx%d, %s", video_frame.width(), video_frame.height(), video_frame.format().name().toUtf8().constData());
const int nb_planes = fmt.planeCount();
texture_size.resize(nb_planes);
texture_upload_size.resize(nb_planes);
effective_tex_width.resize(nb_planes);
for (int i = 0; i < nb_planes; ++i) {
qDebug("plane linesize %d: padded = %d, effective = %d", i, video_frame.bytesPerLine(i), video_frame.effectiveBytesPerLine(i));
qDebug("plane width %d: effective = %d", video_frame.planeWidth(i), video_frame.effectivePlaneWidth(i));
qDebug("planeHeight %d = %d", i, video_frame.planeHeight(i));
// we have to consider size of opengl format. set bytesPerLine here and change to width later
texture_size[i] = QSize(video_frame.bytesPerLine(i), video_frame.planeHeight(i));
texture_upload_size[i] = texture_size[i];
effective_tex_width[i] = video_frame.effectiveBytesPerLine(i); //store bytes here, modify as width later
// TODO: ratio count the GL_UNPACK_ALIGN?
//effective_tex_width_ratio = qMin((qreal)1.0, (qreal)video_frame.effectiveBytesPerLine(i)/(qreal)video_frame.bytesPerLine(i));
}
plane1_linesize = 0;
if (nb_planes > 1) {
texture_size[0].setWidth(texture_size[1].width() * effective_tex_width[0]/effective_tex_width[1]);
// height? how about odd?
plane1_linesize = video_frame.bytesPerLine(1);
}
effective_tex_width_ratio = (qreal)video_frame.effectiveBytesPerLine(nb_planes-1)/(qreal)video_frame.bytesPerLine(nb_planes-1);
qDebug("effective_tex_width_ratio=%f", effective_tex_width_ratio);
plane0Size.setWidth(video_frame.bytesPerLine(0));
plane0Size.setHeight(video_frame.height());
}
if (update_textures) {
initTextures(fmt);
}
}
void VideoMaterial::setCurrentFrame(const VideoFrame &frame)
{
DPTR_D(VideoMaterial);
d.update_texure = true;
d.bpp = frame.format().bitsPerPixel(0);
d.width = frame.width();
d.height = frame.height();
const VideoFormat fmt(frame.format());
// http://forum.doom9.org/archive/index.php/t-160211.html
ColorTransform::ColorSpace cs = ColorTransform::RGB;
if (fmt.isRGB()) {
if (fmt.isPlanar())
cs = ColorTransform::GBR;
} else {
if (frame.width() >= 1280 || frame.height() > 576) //values from mpv
cs = ColorTransform::BT709;
else
cs = ColorTransform::BT601;
}
d.colorTransform.setInputColorSpace(cs);
d.frame = frame;
if (fmt != d.video_format) {
qDebug("pixel format changed: %s => %s", qPrintable(d.video_format.name()), qPrintable(fmt.name()));
d.video_format = fmt;
}
}
