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84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
// Copyright 1998-2016 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "hlslcc.h"
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#include "LanguageSpec.h"
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#include "VectorVM.h"
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struct FNiagaraCompilationOutput;
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class FVectorVMLanguageSpec : public ILanguageSpec
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{
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protected:
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public:
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virtual bool SupportsDeterminantIntrinsic() const override{ return false; }
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virtual bool SupportsTransposeIntrinsic() const override{ return false; }
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virtual bool SupportsIntegerModulo() const override { return false; }
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virtual bool SupportsMatrixConversions() const override { return false; }
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//#todo-rco: Enable
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virtual bool AllowsSharingSamplers() const override { return false; }
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FVectorVMLanguageSpec() {}
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//TODO
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virtual void SetupLanguageIntrinsics(_mesa_glsl_parse_state* State, exec_list* ir) override;
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};
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class ir_variable;
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// Generates VectorVM compliant code from IR tokens
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struct FVectorVMCodeBackend : public FCodeBackend
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{
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FVectorVMCodeBackend(unsigned int InHlslCompileFlags, EHlslCompileTarget InTarget, FNiagaraCompilationOutput& InCompilerOutput) :
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FCodeBackend(InHlslCompileFlags, InTarget), CompilationOutput(InCompilerOutput)
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{
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}
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virtual bool GenerateMain(EHlslShaderFrequency Frequency, const char* EntryPoint, exec_list* Instructions, _mesa_glsl_parse_state* ParseState);
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virtual char* GenerateCode(struct exec_list* ir, struct _mesa_glsl_parse_state* ParseState, EHlslShaderFrequency Frequency) override;
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//TODO: We'll likely need to do this
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// Return false if there were restrictions that made compilation fail
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//virtual bool ApplyAndVerifyPlatformRestrictions(exec_list* Instructions, _mesa_glsl_parse_state* ParseState, EHlslShaderFrequency Frequency) override;
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//TODO: Do we need to generate a main()?
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//virtual bool GenerateMain(EHlslShaderFrequency Frequency, const char* EntryPoint, exec_list* Instructions, _mesa_glsl_parse_state* ParseState) override;
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FNiagaraCompilationOutput& CompilationOutput;
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};
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class ir_call;
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struct exec_list;
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struct _mesa_glsl_parse_state;
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EVectorVMOp get_special_vm_opcode(ir_function_signature* signature);
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bool do_vec_op_to_scalar(exec_list *instructions);
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bool vm_flatten_branches_to_selects(exec_list *instructions, _mesa_glsl_parse_state *state);
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void vm_to_single_op(exec_list *ir, _mesa_glsl_parse_state *state);
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void vm_merge_ops(exec_list *ir, _mesa_glsl_parse_state *state);
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void vm_scalarize_ops(exec_list* ir, _mesa_glsl_parse_state* state);
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void vm_propagate_non_expressions_visitor(exec_list* ir, _mesa_glsl_parse_state* state);
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void vm_gen_bytecode(exec_list *ir, _mesa_glsl_parse_state *state, FNiagaraCompilationOutput& InCompOutput);
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//////////////////////////////////////////////////////////////////////////
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//Enable verbose debug dumps.
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#define VM_VERBOSE_LOGGING 0
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#if VM_VERBOSE_LOGGING
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#define vm_debug_dump(ir, state) IRDump(ir, state)
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#define vm_debug_print(X) dprintf(X)
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#else
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#define vm_debug_dump(ir, state)
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#define vm_debug_print(X)
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#endif
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DECLARE_LOG_CATEGORY_EXTERN(LogVVMBackend, All, All); |