C++ OBSBasic::GetCurrentSceneSource方法代码示例

void OBSProjector::mousePressEvent(QMouseEvent *event)
{
	OBSQTDisplay::mousePressEvent(event);

	if (event->button() == Qt::RightButton) {
		QMenu popup(this);
		popup.addAction(QTStr("Close"), this, SLOT(EscapeTriggered()));
		popup.exec(QCursor::pos());
	}

	if (!mouseSwitching)
		return;

	if (event->button() == Qt::LeftButton) {
		int pos = getSourceByPosition(event->x(), event->y(), ratio);
		if (pos < 0 || pos >= (int)numSrcs)
			return;
		OBSSource src = OBSGetStrongRef(multiviewScenes[pos]);
		if (!src)
			return;

		OBSBasic *main = (OBSBasic*)obs_frontend_get_main_window();
		if (main->GetCurrentSceneSource() != src)
			main->SetCurrentScene(src, false);
	}
}

OBSBasicSourceSelect::OBSBasicSourceSelect(OBSBasic *parent, const char *id_)
	: QDialog (parent),
	  ui      (new Ui::OBSBasicSourceSelect),
	  id      (id_)
{
	setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);

	ui->setupUi(this);

	ui->sourceList->setAttribute(Qt::WA_MacShowFocusRect, false);

	QString placeHolderText{QT_UTF8(GetSourceDisplayName(id))};

	QString text{placeHolderText};
	int i = 2;
	obs_source_t *source = nullptr;
	while ((source = obs_get_source_by_name(QT_TO_UTF8(text)))) {
		obs_source_release(source);
		text = QString("%1 %2").arg(placeHolderText).arg(i++);
	}

	ui->sourceName->setText(text);
	ui->sourceName->setFocus();	//Fixes deselect of text.
	ui->sourceName->selectAll();

	installEventFilter(CreateShortcutFilter());

	if (strcmp(id_, "scene") == 0) {
		OBSBasic *main = reinterpret_cast<OBSBasic*>(
				App()->GetMainWindow());
		OBSSource curSceneSource = main->GetCurrentSceneSource();

		ui->selectExisting->setChecked(true);
		ui->createNew->setChecked(false);
		ui->createNew->setEnabled(false);
		ui->sourceName->setEnabled(false);

		int count = main->ui->scenes->count();
		for (int i = 0; i < count; i++) {
			QListWidgetItem *item = main->ui->scenes->item(i);
			OBSScene scene = GetOBSRef<OBSScene>(item);
			OBSSource sceneSource = obs_scene_get_source(scene);

			if (curSceneSource == sceneSource)
				continue;

			const char *name = obs_source_get_name(sceneSource);
			ui->sourceList->addItem(QT_UTF8(name));
		}
	} else if (strcmp(id_, "group") == 0) {
		obs_enum_sources(EnumGroups, this);
	} else {
		obs_enum_sources(EnumSources, this);
	}
}

void OBSProjector::OBSRender(void *data, uint32_t cx, uint32_t cy)
{
	OBSProjector *window = reinterpret_cast<OBSProjector*>(data);

	if (!window->ready)
		return;

	OBSBasic *main = reinterpret_cast<OBSBasic*>(App()->GetMainWindow());
	OBSSource source = window->source;

	uint32_t targetCX;
	uint32_t targetCY;
	int      x, y;
	int      newCX, newCY;
	float    scale;

	if (source) {
		targetCX = std::max(obs_source_get_width(source), 1u);
		targetCY = std::max(obs_source_get_height(source), 1u);
	} else {
		struct obs_video_info ovi;
		obs_get_video_info(&ovi);
		targetCX = ovi.base_width;
		targetCY = ovi.base_height;
	}

	GetScaleAndCenterPos(targetCX, targetCY, cx, cy, x, y, scale);

	newCX = int(scale * float(targetCX));
	newCY = int(scale * float(targetCY));

	startRegion(x, y, newCX, newCY, 0.0f, float(targetCX), 0.0f,
			float(targetCY));

	if (window->type == ProjectorType::Preview &&
	    main->IsPreviewProgramMode()) {
		OBSSource curSource = main->GetCurrentSceneSource();

		if (source != curSource) {
			obs_source_dec_showing(source);
			obs_source_inc_showing(curSource);
			source = curSource;
			window->source = source;
		}
	}

	if (source)
		obs_source_video_render(source);
	else
		obs_render_main_texture();

	endRegion();
}

void OBSProjector::OBSRenderMultiview(void *data, uint32_t cx, uint32_t cy)
{
	OBSProjector *window = (OBSProjector *)data;

	if (updatingMultiview || !window->ready)
		return;

	OBSBasic     *main   = (OBSBasic *)obs_frontend_get_main_window();
	uint32_t     targetCX, targetCY;
	int          x, y;
	float        scale;

	targetCX = (uint32_t)window->fw;
	targetCY = (uint32_t)window->fh;

	GetScaleAndCenterPos(targetCX, targetCY, cx, cy, x, y, scale);

	OBSSource previewSrc = main->GetCurrentSceneSource();
	OBSSource programSrc = main->GetProgramSource();
	bool studioMode = main->IsPreviewProgramMode();

	auto renderVB = [&](gs_vertbuffer_t *vb, int cx, int cy,
			uint32_t colorVal)
	{
		if (!vb)
			return;

		matrix4 transform;
		matrix4_identity(&transform);
		transform.x.x = cx;
		transform.y.y = cy;

		gs_load_vertexbuffer(vb);

		gs_matrix_push();
		gs_matrix_mul(&transform);

		gs_effect_set_color(window->color, colorVal);
		while (gs_effect_loop(window->solid, "Solid"))
			gs_draw(GS_LINESTRIP, 0, 0);

		gs_matrix_pop();
	};

	auto drawBox = [&](float cx, float cy, uint32_t colorVal)
	{
		gs_effect_set_color(window->color, colorVal);
		while (gs_effect_loop(window->solid, "Solid"))
			gs_draw_sprite(nullptr, 0, (uint32_t)cx, (uint32_t)cy);
	};

	auto setRegion = [&](float bx, float by, float cx,
			float cy)
	{
		float vX  = int(x + bx * scale);
		float vY  = int(y + by * scale);
		float vCX = int(cx * scale);
		float vCY = int(cy * scale);

		float oL = bx;
		float oT = by;
		float oR = (bx + cx);
		float oB = (by + cy);

		startRegion(vX, vY, vCX, vCY, oL, oR, oT, oB);
	};

	auto calcBaseSource = [&](size_t i)
	{
		switch (multiviewLayout) {
		case MultiviewLayout::HORIZONTAL_TOP_24_SCENES:
			window->sourceX = (i % 6) * window->scenesCX;
			window->sourceY = window->pvwprgCY +
					(i / 6) * window->scenesCY;
			break;
		case MultiviewLayout::VERTICAL_LEFT_8_SCENES:
			window->sourceX = window->pvwprgCX;
			window->sourceY = (i / 2 ) * window->scenesCY;
			if (i % 2 != 0)
				window->sourceX += window->scenesCX;
			break;
		case MultiviewLayout::VERTICAL_RIGHT_8_SCENES:
			window->sourceX = 0;
			window->sourceY = (i / 2 ) * window->scenesCY;
			if (i % 2 != 0)
				window->sourceX = window->scenesCX;
			break;
		case MultiviewLayout::HORIZONTAL_BOTTOM_8_SCENES:
			if (i < 4) {
				window->sourceX = (float(i) * window->scenesCX);
				window->sourceY = 0;
			} else {
				window->sourceX = (float(i - 4) *
						window->scenesCX);
				window->sourceY = window->scenesCY;
			}
			break;
		default: // MultiviewLayout::HORIZONTAL_TOP_8_SCENES:
			if (i < 4) {
				window->sourceX = (float(i) * window->scenesCX);
//.........这里部分代码省略.........