#include "OpenGLShaders.h"
#include "HAL/PlatformFileManager.h"
#include "HAL/FileManager.h"
#include "Misc/Paths.h"
#include "Misc/Compression.h"
#include "Serialization/MemoryWriter.h"
#include "Serialization/MemoryReader.h"
#include "OpenGLDrvPrivate.h"
#include "Shader.h"
#include "GlobalShader.h"
#include "SceneUtils.h"
#include "PsoLruCache.h"
#include "RHICoreShader.h"
#include "OpenGLProgramBinaryFileCache.h"
#include "OpenGLBinaryProgramUtils.h"
#include "HAL/PlatformFramePacer.h"

Classes
class	FOpenGLBinaryCacheStats

class	FOpenGLCompiledShaderValue

struct	FOpenGLUniformName

class	FOpenGLLinkedProgramBase

class	FOpenGLLinkedProgram

struct	FOpenGLLinkedProgram::FPackedUniformInfo

struct	FOpenGLLinkedProgram::FShaderStage

struct	FOpenGLLinkedProgram::FGraphicsProgram

struct	FOpenGLLinkedProgram::FComputeProgram

class	FOpenGLLinkedProgram::FLRUInfo

class	FGLProgramCacheLRU

class	FGLProgramCache

struct	FOpenGLShaderVaryingMapping

Namespaces
namespace	UE

namespace	UE::OpenGL

Macros
#define	VERIFY_GL_SHADER_LINK 1

#define	VERIFY_GL_SHADER_COMPILE 1

#define	OGL_BINARYCACHE_STATS !UE_BUILD_SHIPPING

#define	OGL_BINARYCACHE_STATS_MARKBEGINCOMPILE(x) if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().MarkStartTime(x);}

#define	OGL_BINARYCACHE_STATS_MARKCOMPILED(x) if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().MarkCompileFinishTime(x);}

#define	OGL_BINARYCACHE_STATS_MARKBINARYCACHEMISS(x, y) if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().MarkCacheMissedTime(x,y);}

#define	OGL_BINARYCACHE_STATS_MARKBINARYCACHEUSE(x) if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().MarkCacheUse(x);}

#define	OGL_BINARYCACHE_STATS_LOG() if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().LogStats();}

#define	LAST_RELEASED_PROGRAMS_CACHE_COUNT 10

#define	PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257

Typedefs
typedef TMap< FOpenGLCompiledShaderKey, FOpenGLCompiledShaderValue >	FOpenGLCompiledShaderCache

Functions
bool	IsPrecachingEnabled ()

void	PE_AppendCString (TArray< ANSICHAR > &Dest, const ANSICHAR *Source)

void	PE_ReplaceCString (TArray< ANSICHAR > &Dest, const ANSICHAR Source, const ANSICHAR Replacement)

uint32	GetTypeHash (FAnsiCharArray const &CharArray)

void OPENGLDRV_API	GetCurrentOpenGLShaderDeviceCapabilities (FOpenGLShaderDeviceCapabilities &Capabilities)

void OPENGLDRV_API	GLSLToDeviceCompatibleGLSL (FAnsiCharArray &GlslCodeOriginal, const FString &ShaderName, GLenum TypeEnum, const FOpenGLShaderDeviceCapabilities &Capabilities, FAnsiCharArray &GlslCode)

bool	UE::OpenGL::CreateGLProgramFromBinary (GLuint &ProgramOUT, const TArrayView< const uint8 > &ProgramBinary)

void	DestroyShadersAndPrograms ()

void	UE::OpenGL::OnGLProgramLoadedFromBinaryCache (const FOpenGLProgramKey &ProgramKey, TUniqueObj< FOpenGLProgramBinary > &&ProgramBinaryData)

Variables
int32	GUntouchedProgramEvictTimeSeconds = 0

int32	GProgramLRUResidentCountBeforeEviction = 300

const uint32	SizeOfFloat4 = 16

const uint32	NumFloatsInFloat4 = 4

Macro Definition Documentation

◆ LAST_RELEASED_PROGRAMS_CACHE_COUNT

#define LAST_RELEASED_PROGRAMS_CACHE_COUNT 10

◆ OGL_BINARYCACHE_STATS

#define OGL_BINARYCACHE_STATS !UE_BUILD_SHIPPING

◆ OGL_BINARYCACHE_STATS_LOG

#define OGL_BINARYCACHE_STATS_LOG ( ) if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().LogStats();}

◆ OGL_BINARYCACHE_STATS_MARKBEGINCOMPILE

#define OGL_BINARYCACHE_STATS_MARKBEGINCOMPILE ( x ) if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().MarkStartTime(x);}

◆ OGL_BINARYCACHE_STATS_MARKBINARYCACHEMISS

#define OGL_BINARYCACHE_STATS_MARKBINARYCACHEMISS	(	x,
		y
	)	if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().MarkCacheMissedTime(x,y);}

◆ OGL_BINARYCACHE_STATS_MARKBINARYCACHEUSE

#define OGL_BINARYCACHE_STATS_MARKBINARYCACHEUSE ( x ) if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().MarkCacheUse(x);}

◆ OGL_BINARYCACHE_STATS_MARKCOMPILED

#define OGL_BINARYCACHE_STATS_MARKCOMPILED ( x ) if(FOpenGLBinaryCacheStats::IsEnabled()) { FOpenGLBinaryCacheStats::Get().MarkCompileFinishTime(x);}

◆ PROGRAM_BINARY_RETRIEVABLE_HINT

#define PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257

◆ VERIFY_GL_SHADER_COMPILE

#define VERIFY_GL_SHADER_COMPILE 1

◆ VERIFY_GL_SHADER_LINK

#define VERIFY_GL_SHADER_LINK 1

Typedef Documentation

◆ FOpenGLCompiledShaderCache

typedef TMap<FOpenGLCompiledShaderKey, FOpenGLCompiledShaderValue> FOpenGLCompiledShaderCache

Function Documentation

◆ DestroyShadersAndPrograms()

void DestroyShadersAndPrograms ( )

◆ GetCurrentOpenGLShaderDeviceCapabilities()

void OPENGLDRV_API GetCurrentOpenGLShaderDeviceCapabilities ( FOpenGLShaderDeviceCapabilities & Capabilities )

Gets the GL device capabilities for the current device.

Parameters

Capabilities [out] The current platform's capabilities on device for shader compiling

◆ GetTypeHash()

uint32 GetTypeHash ( FAnsiCharArray const & CharArray )

inline

◆ GLSLToDeviceCompatibleGLSL()

void OPENGLDRV_API GLSLToDeviceCompatibleGLSL	(	FAnsiCharArray &	GlslCodeOriginal,
		const FString &	ShaderName,
		GLenum	TypeEnum,
		const FOpenGLShaderDeviceCapabilities &	Capabilities,
		FAnsiCharArray &	GlslCode
	)

Processes the GLSL output of the shader cross compiler to get GLSL that can be compiled on a platform with the specified capabilities. Works around inconsistencies between OpenGL implementations, including lack of support for certain extensions and drivers with non-conformant behavior.

Parameters

GlslCodeOriginal	- [in,out] GLSL output from shader cross compiler to be modified. Process is destructive; pass in a copy if still need original!
ShaderName	- [in] Shader name
TypeEnum	- [in] Type of shader (GL_[VERTEX, FRAGMENT, GEOMETRY, TESS_CONTROL, TESS_EVALUATION]_SHADER)
Capabilities	- [in] GL Device capabilities
GlslCode	- [out] Compilable GLSL

◆ IsPrecachingEnabled()

bool IsPrecachingEnabled ( )

◆ PE_AppendCString()

void PE_AppendCString	(	TArray< ANSICHAR > &	Dest,
		const ANSICHAR *	Source
	)

◆ PE_ReplaceCString()

void PE_ReplaceCString	(	TArray< ANSICHAR > &	Dest,
		const ANSICHAR *	Source,
		const ANSICHAR *	Replacement
	)

Variable Documentation

◆ GProgramLRUResidentCountBeforeEviction

int32 GProgramLRUResidentCountBeforeEviction = 300

◆ GUntouchedProgramEvictTimeSeconds

int32 GUntouchedProgramEvictTimeSeconds = 0

◆ NumFloatsInFloat4

const uint32 NumFloatsInFloat4 = 4

◆ SizeOfFloat4

const uint32 SizeOfFloat4 = 16

Classes

Namespaces

Macros

Typedefs

Functions

Variables