OpenGLShaders.h File Reference

#include "CoreMinimal.h"
#include "OpenGLDrv.h"

Go to the source code of this file.

Classes
struct	FOpenGLShaderDeviceCapabilities

Enumerations
enum	EOpenGLShaderTargetPlatform { OGLSTP_Unknown , OGLSTP_Desktop , OGLSTP_Android , OGLSTP_iOS }

Functions
void OPENGLDRV_API	GetCurrentOpenGLShaderDeviceCapabilities (FOpenGLShaderDeviceCapabilities &Capabilities)
void OPENGLDRV_API	GLSLToDeviceCompatibleGLSL (FAnsiCharArray &GlslCodeOriginal, const FString &ShaderName, GLenum TypeEnum, const FOpenGLShaderDeviceCapabilities &Capabilities, FAnsiCharArray &GlslCode)
void	PE_AppendCString (TArray< ANSICHAR > &Dest, const ANSICHAR *Source)
void	PE_ReplaceCString (TArray< ANSICHAR > &Dest, const ANSICHAR *Source, const ANSICHAR *Replacement)

Enumeration Type Documentation

EOpenGLShaderTargetPlatform

enum EOpenGLShaderTargetPlatform

Enumerator
OGLSTP_Unknown
OGLSTP_Desktop
OGLSTP_Android
OGLSTP_iOS

Function Documentation

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

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

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
	)