supports_blit()

bool MayaFlux::Core::BackendResourceManager::supports_blit	(	vk::Format	src_format,
		vk::Format	dst_format,
		vk::Filter	filter = vk::Filter::eNearest
	)		const

Whether a blit between two formats is supported with a filter.

Checks optimal tiling blit source and destination features, and linear sampling on the source for a linear filter.

Definition at line 1124 of file BackendResoureManager.cpp.

{
    const auto physical = m_context.get_physical_device();
    const auto src_features = physical.getFormatProperties(src_format).optimalTilingFeatures;
    const auto dst_features = physical.getFormatProperties(dst_format).optimalTilingFeatures;
 
    if (!(src_features & vk::FormatFeatureFlagBits::eBlitSrc)
        || !(dst_features & vk::FormatFeatureFlagBits::eBlitDst)) {
        return false;
    }
 
    return filter != vk::Filter::eLinear
        || static_cast<bool>(src_features & vk::FormatFeatureFlagBits::eSampledImageFilterLinear);
}

References MayaFlux::Core::VKContext::get_physical_device(), and m_context.

Referenced by blit_image(), and MayaFlux::Portal::Graphics::TextureLoom::can_blit().

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