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#pragma once
#include <memory>
#include <Containers/SmallVector.h>
using namespace Death::Containers;
namespace nCine
{
class RenderCommand;
/// Batches render commands together
class RenderBatcher
{
public:
RenderBatcher();
void CollectInstances(const SmallVectorImpl<RenderCommand*>& srcQueue, SmallVectorImpl<RenderCommand*>& destQueue);
void CreateBatches(const SmallVectorImpl<RenderCommand*>& srcQueue, SmallVectorImpl<RenderCommand*>& destQueue);
void Reset();
private:
static std::uint32_t UboMaxSize;
#ifndef DOXYGEN_GENERATING_OUTPUT
// Doxygen 1.12.0 outputs also private structs/unions even if it shouldn't
struct ManagedBuffer
{
ManagedBuffer()
: size(0), freeSpace(0) {}
std::uint32_t size;
std::uint32_t freeSpace;
std::unique_ptr<std::uint8_t[]> buffer;
};
#endif
/// Memory buffers to collect UBO data before committing it
/*! \note It is a RAM buffer and cannot be handled by the `RenderBuffersManager` */
SmallVector<ManagedBuffer, 0> buffers_;
RenderCommand* CollectCommands(SmallVectorImpl<RenderCommand*>::const_iterator start, SmallVectorImpl<RenderCommand*>::const_iterator end, SmallVectorImpl<RenderCommand*>::const_iterator& nextStart);
std::uint8_t* AcquireMemory(std::uint32_t bytes);
void CreateBuffer(std::uint32_t size);
};
}
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