You've already forked UnrealEngineUWP
mirror of
https://github.com/izzy2lost/UnrealEngineUWP.git
synced 2026-03-26 18:15:20 -07:00
7161ed1348
Also remove further references to Hull and Domain shaders as tessellation is no longer supported in UE5. #rb Will.Damon, Brian.White, Christopher.Waters, Jeannoe.Morissette #fyi Carl.Lloyd, Florin.Pascu, Ryan.Vance, Rolando.Caloca, Mihnea.Balta #jira none #rnx [CL 17408818 by Lukas Hermanns in ue5-main branch]
101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
|
|
|
|
#pragma once
|
|
|
|
#include "CoreMinimal.h"
|
|
#include "hlslcc.h"
|
|
#include "LanguageSpec.h"
|
|
|
|
class SHADERFORMATOPENGL_API FGlslLanguageSpec : public ILanguageSpec
|
|
{
|
|
protected:
|
|
bool bDefaultPrecisionIsHalf;
|
|
|
|
public:
|
|
FGlslLanguageSpec(bool bInDefaultPrecisionIsHalf)
|
|
: bDefaultPrecisionIsHalf(bInDefaultPrecisionIsHalf)
|
|
{}
|
|
|
|
virtual bool SupportsDeterminantIntrinsic() const override
|
|
{
|
|
return true;
|
|
}
|
|
|
|
virtual bool SupportsTransposeIntrinsic() const override
|
|
{
|
|
return true;
|
|
}
|
|
|
|
virtual bool SupportsIntegerModulo() const override
|
|
{
|
|
return true;
|
|
}
|
|
|
|
virtual bool SupportsMatrixConversions() const override { return true; }
|
|
|
|
//#todo-rco: Enable
|
|
virtual bool AllowsSharingSamplers() const override { return false; }
|
|
|
|
virtual void SetupLanguageIntrinsics(_mesa_glsl_parse_state* State, exec_list* ir) override;
|
|
|
|
virtual bool AllowsImageLoadsForNonScalar() const { return true; }
|
|
|
|
virtual bool EmulateStructuredWithTypedBuffers() const override { return false; }
|
|
};
|
|
|
|
class ir_variable;
|
|
|
|
// Generates GLSL compliant code from IR tokens
|
|
#ifdef __GNUC__
|
|
#pragma GCC visibility push(default)
|
|
#endif // __GNUC__
|
|
struct SHADERFORMATOPENGL_API FGlslCodeBackend : public FCodeBackend
|
|
{
|
|
FGlslCodeBackend(unsigned int InHlslCompileFlags, EHlslCompileTarget InTarget) :
|
|
FCodeBackend(InHlslCompileFlags, InTarget),
|
|
bExplicitDepthWrites(false)
|
|
{
|
|
}
|
|
|
|
virtual char* GenerateCode(struct exec_list* ir, struct _mesa_glsl_parse_state* ParseState, EHlslShaderFrequency Frequency) override;
|
|
|
|
// Return false if there were restrictions that made compilation fail
|
|
virtual bool ApplyAndVerifyPlatformRestrictions(exec_list* Instructions, _mesa_glsl_parse_state* ParseState, EHlslShaderFrequency Frequency) override;
|
|
|
|
/**
|
|
* Generate a GLSL main() function that calls the entry point and handles
|
|
* reading and writing all input and output semantics.
|
|
* @param Frequency - The shader frequency.
|
|
* @param EntryPoint - The name of the shader entry point.
|
|
* @param Instructions - IR code.
|
|
* @param ParseState - Parse state.
|
|
*/
|
|
virtual bool GenerateMain(EHlslShaderFrequency Frequency, const char* EntryPoint, exec_list* Instructions, _mesa_glsl_parse_state* ParseState) override;
|
|
|
|
ir_function_signature* FindPatchConstantFunction(exec_list* Instructions, _mesa_glsl_parse_state* ParseState);
|
|
|
|
|
|
// subclass functionality
|
|
virtual bool AllowsGlobalUniforms()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
virtual bool AllowsESLanguage()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
virtual bool WantsPrecisionModifiers()
|
|
{
|
|
return Target == HCT_FeatureLevelES3_1 || Target == HCT_FeatureLevelES3_1Ext;
|
|
}
|
|
|
|
bool bExplicitDepthWrites;
|
|
};
|
|
|
|
|
|
#ifdef __GNUC__
|
|
#pragma GCC visibility pop
|
|
#endif // __GNUC__
|