bind_push_constant() [1/4]

void MayaFlux::Buffers::FormaBindingsProcessor::bind_push_constant	(	const std::string &	name,
		std::function< float()>	reader,
		uint32_t	offset,
		Kakshya::GpuDataFormat	format
	)

Bind a type-erased reader to a push constant slot described by a GpuDataFormat.

The reader's value is converted to the format; integers saturate. The format must have a single component, since the reader produces one value.

Parameters

name	Logical binding name.
reader	Callable returning the current value each tick.
offset	Byte offset in the push constant struct.
format	Layout written at the offset.

Definition at line 46 of file FormaBindingsProcessor.cpp.

{
    if (!reader) {
        MF_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "FormaBindingsProcessor::bind_push_constant: null reader for '{}'", name);
        return;
    }
 
    if (Kakshya::gpu_data_format_components(format) != 1) {
        MF_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "FormaBindingsProcessor::bind_push_constant: '{}' needs a single component format",
            name);
        return;
    }
 
    release(name);
    auto& b = m_bindings[name];
    b.kind = TargetKind::PUSH_CONSTANT;
    b.reader = std::move(reader);
    b.typed_reader = nullptr;
    b.pc = PushConstantTarget { .offset = offset, .size = Kakshya::gpu_data_format_bytes(format), .format = format };
    b.desc.reset();
}

References b, MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, format, MayaFlux::Kakshya::gpu_data_format_bytes(), MayaFlux::Kakshya::gpu_data_format_components(), m_bindings, MF_ERROR, name, MayaFlux::Buffers::FormaBindingsProcessor::PushConstantTarget::offset, offset, PUSH_CONSTANT, and release().

Here is the call graph for this function: