You've already forked UnrealEngineUWP
mirror of
https://github.com/izzy2lost/UnrealEngineUWP.git
synced 2026-03-26 18:15:20 -07:00
842fb14f28
#codereview Michael.Trepka, Peter.Sauerbrei, Mark.Satterthwaite, Dmitry.Rekman [CL 2598096 by Rolando Caloca in Main branch]
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
|
|
|
|
#pragma once
|
|
|
|
#include "hlslcc.h"
|
|
#include "LanguageSpec.h"
|
|
|
|
class FGlslLanguageSpec : public ILanguageSpec
|
|
{
|
|
protected:
|
|
bool bIsES2;
|
|
|
|
public:
|
|
FGlslLanguageSpec(bool bInIsES2) : bIsES2(bInIsES2) {}
|
|
|
|
virtual bool SupportsDeterminantIntrinsic() const override
|
|
{
|
|
return !bIsES2;
|
|
}
|
|
|
|
virtual bool SupportsTransposeIntrinsic() const override
|
|
{
|
|
return !bIsES2;
|
|
}
|
|
|
|
virtual bool SupportsIntegerModulo() const override
|
|
{
|
|
return !bIsES2;
|
|
}
|
|
|
|
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;
|
|
};
|
|
|
|
class ir_variable;
|
|
|
|
// Generates GLSL compliant code from IR tokens
|
|
#ifdef __GNUC__
|
|
#pragma GCC visibility push(default)
|
|
#endif // __GNUC__
|
|
struct FGlslCodeBackend : public FCodeBackend
|
|
{
|
|
FGlslCodeBackend(unsigned int InHlslCompileFlags, EHlslCompileTarget InTarget) :
|
|
FCodeBackend(InHlslCompileFlags, InTarget)
|
|
{
|
|
}
|
|
|
|
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;
|
|
|
|
void GenShaderPatchConstantFunctionInputs(_mesa_glsl_parse_state* ParseState, ir_variable* OutputPatchVar, exec_list &PostCallInstructions);
|
|
|
|
void CallPatchConstantFunction(_mesa_glsl_parse_state* ParseState, ir_variable* OutputPatchVar, ir_function_signature* PatchConstantSig, exec_list& DeclInstructions, exec_list &PostCallInstructions);
|
|
|
|
ir_function_signature* FindPatchConstantFunction(exec_list* Instructions, _mesa_glsl_parse_state* ParseState);
|
|
};
|
|
#ifdef __GNUC__
|
|
#pragma GCC visibility pop
|
|
#endif // __GNUC__
|