124 lines
2.7 KiB
C++
124 lines
2.7 KiB
C++
#include "qt-display.hpp"
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#include "qt-wrappers.hpp"
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#include "display-helpers.hpp"
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#include <QWindow>
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#include <QScreen>
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#include <QResizeEvent>
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#include <QShowEvent>
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static inline long long color_to_int(const QColor &color)
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{
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auto shift = [&](unsigned val, int shift) {
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return ((val & 0xff) << shift);
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};
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return shift(color.red(), 0) | shift(color.green(), 8) |
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shift(color.blue(), 16) | shift(color.alpha(), 24);
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}
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static inline QColor rgba_to_color(uint32_t rgba)
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{
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return QColor::fromRgb(rgba & 0xFF, (rgba >> 8) & 0xFF,
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(rgba >> 16) & 0xFF, (rgba >> 24) & 0xFF);
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}
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OBSQTDisplay::OBSQTDisplay(QWidget *parent, Qt::WindowFlags flags)
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: QWidget(parent, flags)
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{
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setAttribute(Qt::WA_PaintOnScreen);
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setAttribute(Qt::WA_StaticContents);
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setAttribute(Qt::WA_NoSystemBackground);
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setAttribute(Qt::WA_OpaquePaintEvent);
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setAttribute(Qt::WA_DontCreateNativeAncestors);
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setAttribute(Qt::WA_NativeWindow);
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auto windowVisible = [this](bool visible) {
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if (!visible)
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return;
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if (!display) {
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CreateDisplay();
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} else {
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QSize size = GetPixelSize(this);
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obs_display_resize(display, size.width(),
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size.height());
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}
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};
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auto sizeChanged = [this](QScreen *) {
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CreateDisplay();
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QSize size = GetPixelSize(this);
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obs_display_resize(display, size.width(), size.height());
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};
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connect(windowHandle(), &QWindow::visibleChanged, windowVisible);
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connect(windowHandle(), &QWindow::screenChanged, sizeChanged);
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}
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QColor OBSQTDisplay::GetDisplayBackgroundColor() const
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{
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return rgba_to_color(backgroundColor);
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}
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void OBSQTDisplay::SetDisplayBackgroundColor(const QColor &color)
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{
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uint32_t newBackgroundColor = (uint32_t)color_to_int(color);
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if (newBackgroundColor != backgroundColor) {
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backgroundColor = newBackgroundColor;
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UpdateDisplayBackgroundColor();
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}
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}
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void OBSQTDisplay::UpdateDisplayBackgroundColor()
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{
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obs_display_set_background_color(display, backgroundColor);
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}
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void OBSQTDisplay::CreateDisplay()
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{
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if (display || !windowHandle()->isExposed())
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return;
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QSize size = GetPixelSize(this);
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gs_init_data info = {};
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info.cx = size.width();
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info.cy = size.height();
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info.format = GS_BGRA;
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info.zsformat = GS_ZS_NONE;
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QTToGSWindow(winId(), info.window);
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display = obs_display_create(&info, backgroundColor);
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emit DisplayCreated(this);
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}
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void OBSQTDisplay::resizeEvent(QResizeEvent *event)
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{
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QWidget::resizeEvent(event);
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CreateDisplay();
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if (isVisible() && display) {
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QSize size = GetPixelSize(this);
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obs_display_resize(display, size.width(), size.height());
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}
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emit DisplayResized();
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}
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void OBSQTDisplay::paintEvent(QPaintEvent *event)
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{
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CreateDisplay();
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QWidget::paintEvent(event);
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}
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QPaintEngine *OBSQTDisplay::paintEngine() const
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{
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return nullptr;
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}
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