submit_layer() [2/3]

bool MayaFlux::Buffers::TextureArrayBuffer::submit_layer	(	uint32_t	layer,
		const std::shared_ptr< Core::VKImage > &	image
	)

Replace the frame of one layer with a GPU image, with no host read.

The image is blitted into the layer, converting format and fitting its extent as set_fit says. It must not be this buffer's own image.

Returns

True if the frame was stored.

Definition at line 136 of file TextureArrayBuffer.cpp.

{
    if (layer >= m_layers || !image) {
        MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "TextureArrayBuffer::submit_layer needs a layer below {} and an image, got layer {}",
            m_layers, layer);
        return false;
    }
 
    const bool same_extent = image->get_width() == get_width() && image->get_height() == get_height();
    const auto fit = fit_for(layer);
    if (!same_extent && !fit) {
        return false;
    }
 
    enter_layer_mode();
    if (!m_layer_mode) {
        return false;
    }
 
    auto plan = Portal::Graphics::SamplerForge::plan_fit(
        image->get_width(), image->get_height(), get_width(), get_height(),
        same_extent ? Portal::Graphics::FitMode::STRETCH : *fit, m_filter);
 
    auto& loom = Portal::Graphics::get_texture_manager();
    bool stored = !plan.blits.empty();
 
    if (stored) {
        const vk::Rect2D& first = plan.blits.front().dst;
        const bool covers = plan.blits.size() == 1
            && first.offset.x == 0 && first.offset.y == 0
            && first.extent.width == get_width() && first.extent.height == get_height();
        if (!covers) {
            clear_layer(layer);
        }
    }
 
    for (auto& blit : plan.blits) {
        blit.dst_layer = layer;
        stored = loom.blit_layer(image, get_texture(), blit) && stored;
    }
 
    return stored;
}

References MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, clear_layer(), enter_layer_mode(), fit_for(), MayaFlux::Buffers::TextureBuffer::get_height(), MayaFlux::Buffers::TextureBuffer::get_texture(), MayaFlux::Portal::Graphics::get_texture_manager(), MayaFlux::Buffers::TextureBuffer::get_width(), image, m_filter, m_layer_mode, m_layers, MF_RT_ERROR, MayaFlux::Portal::Graphics::SamplerForge::plan_fit(), and MayaFlux::Portal::Graphics::STRETCH.

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