OpenGLDevice.cpp File Reference

#include "CoreMinimal.h"
#include "Misc/CoreDelegates.h"
#include "Misc/CommandLine.h"
#include "Misc/ScopeLock.h"
#include "Stats/Stats.h"
#include "Serialization/MemoryWriter.h"
#include "Misc/ConfigCacheIni.h"
#include "HAL/IConsoleManager.h"
#include "RHI.h"
#include "DataDrivenShaderPlatformInfo.h"
#include "Containers/List.h"
#include "RenderResource.h"
#include "ShaderCore.h"
#include "Shader.h"
#include "RenderUtils.h"
#include "OpenGLDrv.h"
#include "OpenGLDrvPrivate.h"
#include "SceneUtils.h"
#include "GlobalShader.h"
#include "HardwareInfo.h"
#include "OpenGLProgramBinaryFileCache.h"

Macros
#define	GL_STEREO   0x0C33
#define	LOG_GL_STRING(StringEnum)   UE_LOG(LogRHI, Log, TEXT(" ") ## TEXT(#StringEnum) ## TEXT(": %s"), ANSI_TO_TCHAR((const ANSICHAR*)glGetString(StringEnum)))
#define	LOG_AND_GET_GL_INT_TEMP(IntEnum, Default)   GLint Value_##IntEnum = Default; if (IntEnum) {glGetIntegerv(IntEnum, &Value_##IntEnum); glGetError();} else {Value_##IntEnum = Default;} UE_LOG(LogRHI, Log, TEXT(" ") ## TEXT(#IntEnum) ## TEXT(": %d"), Value_##IntEnum)

Enumerations
enum class	EOpenGLFormatCapabilities : uint32 {   None = 0 , Texture = 1ull << 0 , Render = 1ull << 1 , Filterable = 1ull << 2 ,   Image = 1ull << 3 , DepthStencil = 1ull << 4 }

Functions
void	BeginFrame_UniformBufferPoolCleanup ()
void	BeginFrame_VertexBufferCleanup ()
	ENUM_CLASS_FLAGS (EOpenGLFormatCapabilities)
void	InitDebugContext ()
void	ApplyExtensionsOverrides (FString &ExtensionsString)
void	DestroyShadersAndPrograms ()

Variables
GLint	GMaxOpenGLColorSamples
GLint	GMaxOpenGLDepthSamples
GLint	GMaxOpenGLIntegerSamples
GLint	GMaxOpenGLTextureFilterAnisotropic
GLint	GMaxOpenGLDrawBuffers
FOpenGLTextureFormat	GOpenGLTextureFormats [PF_MAX]
bool	GUseEmulatedUniformBuffers
bool	GDisableOpenGLDebugOutput = false
TAutoConsoleVariable< FString >	CVarOpenGLStripExtensions (TEXT("r.OpenGL.StripExtensions"), TEXT(""), TEXT("List of comma separated OpenGL extensions to strip from a driver reported extensions string"), ECVF_ReadOnly)
TAutoConsoleVariable< FString >	CVarOpenGLAddExtensions (TEXT("r.OpenGL.AddExtensions"), TEXT(""), TEXT("List of comma separated OpenGL extensions to add to a driver reported extensions string"), ECVF_ReadOnly)

Macro Definition Documentation

GL_STEREO

#define GL_STEREO   0x0C33

LOG_AND_GET_GL_INT_TEMP

#define LOG_AND_GET_GL_INT_TEMP	(		IntEnum,
			Default
	)		GLint Value_##IntEnum = Default; if (IntEnum) {glGetIntegerv(IntEnum, &Value_##IntEnum); glGetError();} else {Value_##IntEnum = Default;} UE_LOG(LogRHI, Log, TEXT(" ") ## TEXT(#IntEnum) ## TEXT(": %d"), Value_##IntEnum)

LOG_GL_STRING

#define LOG_GL_STRING

(

StringEnum

)

UE_LOG(LogRHI, Log, TEXT(" ") ## TEXT(#StringEnum) ## TEXT(": %s"), ANSI_TO_TCHAR((const ANSICHAR*)glGetString(StringEnum)))

Enumeration Type Documentation

EOpenGLFormatCapabilities

enum class EOpenGLFormatCapabilities : uint32

strong

Enumerator
None
Texture
Render
Filterable
Image
DepthStencil

Function Documentation

ApplyExtensionsOverrides()

void ApplyExtensionsOverrides

(

FString &

ExtensionsString

)

BeginFrame_UniformBufferPoolCleanup()

void BeginFrame_UniformBufferPoolCleanup ( )

extern

BeginFrame_VertexBufferCleanup()

void BeginFrame_VertexBufferCleanup ( )

extern

DestroyShadersAndPrograms()

void DestroyShadersAndPrograms ( )

extern

ENUM_CLASS_FLAGS()

ENUM_CLASS_FLAGS

(

EOpenGLFormatCapabilities

)

InitDebugContext()

void InitDebugContext

(

)

Variable Documentation

CVarOpenGLAddExtensions

TAutoConsoleVariable< FString > CVarOpenGLAddExtensions(TEXT("r.OpenGL.AddExtensions"), TEXT(""), TEXT("List of comma separated OpenGL extensions to add to a driver reported extensions string"), ECVF_ReadOnly)	(	TEXT("r.OpenGL.AddExtensions")	,
		TEXT("")	,
		TEXT("List of comma separated OpenGL extensions to add to a driver reported extensions string")	,
		ECVF_ReadOnly
	)

CVarOpenGLStripExtensions

TAutoConsoleVariable< FString > CVarOpenGLStripExtensions(TEXT("r.OpenGL.StripExtensions"), TEXT(""), TEXT("List of comma separated OpenGL extensions to strip from a driver reported extensions string"), ECVF_ReadOnly)	(	TEXT("r.OpenGL.StripExtensions")	,
		TEXT("")	,
		TEXT("List of comma separated OpenGL extensions to strip from a driver reported extensions string")	,
		ECVF_ReadOnly
	)

GDisableOpenGLDebugOutput

bool GDisableOpenGLDebugOutput = false

GMaxOpenGLColorSamples

GLint GMaxOpenGLColorSamples

extern

Caching it here, to avoid getting it every time we create a texture. 0 is no multisampling.

GMaxOpenGLDepthSamples

GLint GMaxOpenGLDepthSamples

extern

GMaxOpenGLDrawBuffers

GLint GMaxOpenGLDrawBuffers

extern

GMaxOpenGLIntegerSamples

GLint GMaxOpenGLIntegerSamples

extern

GMaxOpenGLTextureFilterAnisotropic

GLint GMaxOpenGLTextureFilterAnisotropic

extern

GOpenGLTextureFormats

FOpenGLTextureFormat GOpenGLTextureFormats[PF_MAX]

OpenGL texture format table.

GUseEmulatedUniformBuffers

bool GUseEmulatedUniformBuffers

true if we're not using UBOs.