GPUSort.h File Reference

#include "CoreMinimal.h"
#include "RHI.h"

Go to the source code of this file.

Classes
struct	FGPUSortBuffers

Enumerations
enum	EGPUSortTest { GPU_SORT_TEST_SMALL = 1 , GPU_SORT_TEST_LARGE , GPU_SORT_TEST_EXHAUSTIVE , GPU_SORT_TEST_RANDOM }

Functions
int32	GetGPUSortPassCount (uint32 KeyMask)
ENGINE_API int32	SortGPUBuffers (FRHICommandList &RHICmdList, FGPUSortBuffers SortBuffers, int32 BufferIndex, uint32 KeyMask, int32 Count, ERHIFeatureLevel::Type FeatureLevel)
void	TestGPUSort (EGPUSortTest TestToRun, ERHIFeatureLevel::Type FeatureLevel)

Enumeration Type Documentation

EGPUSortTest

enum EGPUSortTest

GPU sorting tests.

Enumerator
GPU_SORT_TEST_SMALL	Tests the sort on a small set of elements.
GPU_SORT_TEST_LARGE	Tests the sort on a large set of elements.
GPU_SORT_TEST_EXHAUSTIVE	Tests the sort on many different sizes of elements.
GPU_SORT_TEST_RANDOM

Function Documentation

GetGPUSortPassCount()

int32 GetGPUSortPassCount

(

uint32

KeyMask

)

Get the number of passes we will need to make in order to sort

SortGPUBuffers()

ENGINE_API int32 SortGPUBuffers	(	FRHICommandList &	RHICmdList,
		FGPUSortBuffers	SortBuffers,
		int32	BufferIndex,
		uint32	KeyMask,
		int32	Count,
		ERHIFeatureLevel::Type	FeatureLevel
	)

Sort a buffer on the GPU.

Parameters

SortBuffers	- The buffer to sort including required views and a ping- pong location of appropriate size.
BufferIndex	- Index of the buffer containing keys.
KeyMask	- Bitmask indicating which key bits contain useful information.
Count	- How many items in the buffer need to be sorted.

Returns

The index of the buffer containing sorted results.

TestGPUSort()

void TestGPUSort	(	EGPUSortTest	TestToRun,
		ERHIFeatureLevel::Type	FeatureLevel
	)

Test that GPU sorting works.

Parameters

TestToRun

- The test to run.