impeller::Picture Struct Reference

#include <picture.h>

Public Member Functions
std::optional< Snapshot >	Snapshot (AiksContext &context)
std::shared_ptr< Image >	ToImage (AiksContext &context, ISize size) const

Public Attributes
std::unique_ptr< EntityPass >	pass

Detailed Description

Definition at line 20 of file picture.h.

Member Function Documentation

Snapshot()

std::optional< Snapshot > impeller::Picture::Snapshot

(

AiksContext &

context

)

Definition at line 17 of file picture.cc.

                                                            {
  auto coverage = pass->GetElementsCoverage(std::nullopt);
  if (!coverage.has_value() || coverage->IsEmpty()) {
    return std::nullopt;
  }
 
  const auto translate = Matrix::MakeTranslation(-coverage->GetOrigin());
  auto texture =
      RenderToTexture(context, ISize(coverage->GetSize()), translate);
  return impeller::Snapshot{
      .texture = std::move(texture),
      .transform = Matrix::MakeTranslation(coverage->GetOrigin())};
}

ToImage()

std::shared_ptr< Image > impeller::Picture::ToImage	(	AiksContext &	context,
		ISize	size
	)		const

Definition at line 31 of file picture.cc.

                                                          {
  if (size.IsEmpty()) {
    return nullptr;
  }
  auto texture = RenderToTexture(context, size);
  return texture ? std::make_shared<Image>(texture) : nullptr;
}

Member Data Documentation

pass

std::unique_ptr<EntityPass> impeller::Picture::pass

Definition at line 21 of file picture.h.

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The documentation for this struct was generated from the following files:

• impeller/aiks/picture.h
• impeller/aiks/picture.cc