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qzdoom-gpl/tools/drawergen/drawergen.cpp
Magnus Norddahl 1ac0fd1a90 Add a silly sleep
2016-11-29 01:19:20 +01:00

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/*
** LLVM code generated drawers
** Copyright (c) 2016 Magnus Norddahl
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
*/
#include "precomp.h"
#include "fixedfunction/drawspancodegen.h"
#include "fixedfunction/drawwallcodegen.h"
#include "fixedfunction/drawcolumncodegen.h"
#include "fixedfunction/drawskycodegen.h"
#include "fixedfunction/drawtrianglecodegen.h"
#include "ssa/ssa_function.h"
#include "ssa/ssa_scope.h"
#include "ssa/ssa_for_block.h"
#include "ssa/ssa_if_block.h"
#include "ssa/ssa_stack.h"
#include "ssa/ssa_function.h"
#include "ssa/ssa_struct_type.h"
#include "ssa/ssa_value.h"
#include "ssa/ssa_barycentric_weight.h"
#include <iostream>
class Exception : public std::exception
{
public:
Exception(const std::string &message) : message(message) { }
const char *what() const override { return message.c_str(); }
private:
std::string message;
};
class LLVMProgram
{
public:
LLVMProgram();
void CreateModule();
std::string GenerateAssembly(std::string cpuName);
std::vector<uint8_t> GenerateObjectFile(std::string cpuName);
std::string DumpModule();
llvm::LLVMContext &context() { return *mContext; }
llvm::Module *module() { return mModule.get(); }
private:
llvm::TargetMachine *machine = nullptr;
std::unique_ptr<llvm::LLVMContext> mContext;
std::unique_ptr<llvm::Module> mModule;
};
class LLVMDrawers
{
public:
LLVMDrawers(const std::string &cpuName, const std::string namePostfix);
std::vector<uint8_t> ObjectFile;
private:
void CodegenDrawColumn(const char *name, DrawColumnVariant variant, DrawColumnMethod method);
void CodegenDrawSpan(const char *name, DrawSpanVariant variant);
void CodegenDrawWall(const char *name, DrawWallVariant variant, int columns);
void CodegenDrawSky(const char *name, DrawSkyVariant variant, int columns);
void CodegenDrawTriangle(const std::string &name, TriDrawVariant variant, TriBlendMode blendmode, bool truecolor);
static llvm::Type *GetDrawColumnArgsStruct(llvm::LLVMContext &context);
static llvm::Type *GetDrawSpanArgsStruct(llvm::LLVMContext &context);
static llvm::Type *GetDrawWallArgsStruct(llvm::LLVMContext &context);
static llvm::Type *GetDrawSkyArgsStruct(llvm::LLVMContext &context);
static llvm::Type *GetWorkerThreadDataStruct(llvm::LLVMContext &context);
static llvm::Type *GetTriVertexStruct(llvm::LLVMContext &context);
static llvm::Type *GetTriMatrixStruct(llvm::LLVMContext &context);
static llvm::Type *GetTriUniformsStruct(llvm::LLVMContext &context);
static llvm::Type *GetTriDrawTriangleArgs(llvm::LLVMContext &context);
LLVMProgram mProgram;
std::string mNamePostfix;
};
/////////////////////////////////////////////////////////////////////////////
LLVMDrawers::LLVMDrawers(const std::string &cpuName, const std::string namePostfix) : mNamePostfix(namePostfix)
{
mProgram.CreateModule();
CodegenDrawColumn("FillColumn", DrawColumnVariant::Fill, DrawColumnMethod::Normal);
CodegenDrawColumn("FillColumnAdd", DrawColumnVariant::FillAdd, DrawColumnMethod::Normal);
CodegenDrawColumn("FillColumnAddClamp", DrawColumnVariant::FillAddClamp, DrawColumnMethod::Normal);
CodegenDrawColumn("FillColumnSubClamp", DrawColumnVariant::FillSubClamp, DrawColumnMethod::Normal);
CodegenDrawColumn("FillColumnRevSubClamp", DrawColumnVariant::FillRevSubClamp, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumn", DrawColumnVariant::Draw, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnAdd", DrawColumnVariant::DrawAdd, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnShaded", DrawColumnVariant::DrawShaded, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnAddClamp", DrawColumnVariant::DrawAddClamp, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnSubClamp", DrawColumnVariant::DrawSubClamp, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnRevSubClamp", DrawColumnVariant::DrawRevSubClamp, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnTranslated", DrawColumnVariant::DrawTranslated, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnTlatedAdd", DrawColumnVariant::DrawTlatedAdd, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnAddClampTranslated", DrawColumnVariant::DrawAddClampTranslated, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnSubClampTranslated", DrawColumnVariant::DrawSubClampTranslated, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnRevSubClampTranslated", DrawColumnVariant::DrawRevSubClampTranslated, DrawColumnMethod::Normal);
CodegenDrawColumn("DrawColumnRt1", DrawColumnVariant::Draw, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1Copy", DrawColumnVariant::DrawCopy, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1Add", DrawColumnVariant::DrawAdd, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1Shaded", DrawColumnVariant::DrawShaded, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1AddClamp", DrawColumnVariant::DrawAddClamp, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1SubClamp", DrawColumnVariant::DrawSubClamp, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1RevSubClamp", DrawColumnVariant::DrawRevSubClamp, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1Translated", DrawColumnVariant::DrawTranslated, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1TlatedAdd", DrawColumnVariant::DrawTlatedAdd, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1AddClampTranslated", DrawColumnVariant::DrawAddClampTranslated, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1SubClampTranslated", DrawColumnVariant::DrawSubClampTranslated, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt1RevSubClampTranslated", DrawColumnVariant::DrawRevSubClampTranslated, DrawColumnMethod::Rt1);
CodegenDrawColumn("DrawColumnRt4", DrawColumnVariant::Draw, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4Copy", DrawColumnVariant::DrawCopy, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4Add", DrawColumnVariant::DrawAdd, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4Shaded", DrawColumnVariant::DrawShaded, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4AddClamp", DrawColumnVariant::DrawAddClamp, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4SubClamp", DrawColumnVariant::DrawSubClamp, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4RevSubClamp", DrawColumnVariant::DrawRevSubClamp, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4Translated", DrawColumnVariant::DrawTranslated, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4TlatedAdd", DrawColumnVariant::DrawTlatedAdd, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4AddClampTranslated", DrawColumnVariant::DrawAddClampTranslated, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4SubClampTranslated", DrawColumnVariant::DrawSubClampTranslated, DrawColumnMethod::Rt4);
CodegenDrawColumn("DrawColumnRt4RevSubClampTranslated", DrawColumnVariant::DrawRevSubClampTranslated, DrawColumnMethod::Rt4);
CodegenDrawSpan("DrawSpan", DrawSpanVariant::Opaque);
CodegenDrawSpan("DrawSpanMasked", DrawSpanVariant::Masked);
CodegenDrawSpan("DrawSpanTranslucent", DrawSpanVariant::Translucent);
CodegenDrawSpan("DrawSpanMaskedTranslucent", DrawSpanVariant::MaskedTranslucent);
CodegenDrawSpan("DrawSpanAddClamp", DrawSpanVariant::AddClamp);
CodegenDrawSpan("DrawSpanMaskedAddClamp", DrawSpanVariant::MaskedAddClamp);
CodegenDrawWall("vlinec1", DrawWallVariant::Opaque, 1);
CodegenDrawWall("vlinec4", DrawWallVariant::Opaque, 4);
CodegenDrawWall("mvlinec1", DrawWallVariant::Masked, 1);
CodegenDrawWall("mvlinec4", DrawWallVariant::Masked, 4);
CodegenDrawWall("tmvline1_add", DrawWallVariant::Add, 1);
CodegenDrawWall("tmvline4_add", DrawWallVariant::Add, 4);
CodegenDrawWall("tmvline1_addclamp", DrawWallVariant::AddClamp, 1);
CodegenDrawWall("tmvline4_addclamp", DrawWallVariant::AddClamp, 4);
CodegenDrawWall("tmvline1_subclamp", DrawWallVariant::SubClamp, 1);
CodegenDrawWall("tmvline4_subclamp", DrawWallVariant::SubClamp, 4);
CodegenDrawWall("tmvline1_revsubclamp", DrawWallVariant::RevSubClamp, 1);
CodegenDrawWall("tmvline4_revsubclamp", DrawWallVariant::RevSubClamp, 4);
CodegenDrawSky("DrawSky1", DrawSkyVariant::Single, 1);
CodegenDrawSky("DrawSky4", DrawSkyVariant::Single, 4);
CodegenDrawSky("DrawDoubleSky1", DrawSkyVariant::Double, 1);
CodegenDrawSky("DrawDoubleSky4", DrawSkyVariant::Double, 4);
for (int i = 0; i < NumTriBlendModes(); i++)
{
CodegenDrawTriangle("TriDrawNormal8_" + std::to_string(i), TriDrawVariant::DrawNormal, (TriBlendMode)i, false);
CodegenDrawTriangle("TriDrawNormal32_" + std::to_string(i), TriDrawVariant::DrawNormal, (TriBlendMode)i, true);
CodegenDrawTriangle("TriFillNormal8_" + std::to_string(i), TriDrawVariant::FillNormal, (TriBlendMode)i, false);
CodegenDrawTriangle("TriFillNormal32_" + std::to_string(i), TriDrawVariant::FillNormal, (TriBlendMode)i, true);
CodegenDrawTriangle("TriDrawSubsector8_" + std::to_string(i), TriDrawVariant::DrawSubsector, (TriBlendMode)i, false);
CodegenDrawTriangle("TriDrawSubsector32_" + std::to_string(i), TriDrawVariant::DrawSubsector, (TriBlendMode)i, true);
CodegenDrawTriangle("TriFillSubsector8_" + std::to_string(i), TriDrawVariant::FillSubsector, (TriBlendMode)i, false);
CodegenDrawTriangle("TriFillSubsector32_" + std::to_string(i), TriDrawVariant::FillSubsector, (TriBlendMode)i, true);
}
CodegenDrawTriangle("TriStencil", TriDrawVariant::Stencil, TriBlendMode::Copy, false);
CodegenDrawTriangle("TriStencilClose", TriDrawVariant::StencilClose, TriBlendMode::Copy, false);
ObjectFile = mProgram.GenerateObjectFile(cpuName);
}
void LLVMDrawers::CodegenDrawColumn(const char *name, DrawColumnVariant variant, DrawColumnMethod method)
{
llvm::IRBuilder<> builder(mProgram.context());
SSAScope ssa_scope(&mProgram.context(), mProgram.module(), &builder);
SSAFunction function(name + mNamePostfix);
function.add_parameter(GetDrawColumnArgsStruct(mProgram.context()));
function.add_parameter(GetWorkerThreadDataStruct(mProgram.context()));
function.create_public();
DrawColumnCodegen codegen;
codegen.Generate(variant, method, function.parameter(0), function.parameter(1));
builder.CreateRetVoid();
if (llvm::verifyFunction(*function.func))
throw Exception("verifyFunction failed for CodegenDrawColumn()");
}
void LLVMDrawers::CodegenDrawSpan(const char *name, DrawSpanVariant variant)
{
llvm::IRBuilder<> builder(mProgram.context());
SSAScope ssa_scope(&mProgram.context(), mProgram.module(), &builder);
SSAFunction function(name + mNamePostfix);
function.add_parameter(GetDrawSpanArgsStruct(mProgram.context()));
function.create_public();
DrawSpanCodegen codegen;
codegen.Generate(variant, function.parameter(0));
builder.CreateRetVoid();
if (llvm::verifyFunction(*function.func))
throw Exception("verifyFunction failed for CodegenDrawSpan()");
}
void LLVMDrawers::CodegenDrawWall(const char *name, DrawWallVariant variant, int columns)
{
llvm::IRBuilder<> builder(mProgram.context());
SSAScope ssa_scope(&mProgram.context(), mProgram.module(), &builder);
SSAFunction function(name + mNamePostfix);
function.add_parameter(GetDrawWallArgsStruct(mProgram.context()));
function.add_parameter(GetWorkerThreadDataStruct(mProgram.context()));
function.create_public();
DrawWallCodegen codegen;
codegen.Generate(variant, columns == 4, function.parameter(0), function.parameter(1));
builder.CreateRetVoid();
if (llvm::verifyFunction(*function.func))
throw Exception("verifyFunction failed for CodegenDrawWall()");
}
void LLVMDrawers::CodegenDrawSky(const char *name, DrawSkyVariant variant, int columns)
{
llvm::IRBuilder<> builder(mProgram.context());
SSAScope ssa_scope(&mProgram.context(), mProgram.module(), &builder);
SSAFunction function(name + mNamePostfix);
function.add_parameter(GetDrawSkyArgsStruct(mProgram.context()));
function.add_parameter(GetWorkerThreadDataStruct(mProgram.context()));
function.create_public();
DrawSkyCodegen codegen;
codegen.Generate(variant, columns == 4, function.parameter(0), function.parameter(1));
builder.CreateRetVoid();
if (llvm::verifyFunction(*function.func))
throw Exception("verifyFunction failed for CodegenDrawSky()");
}
void LLVMDrawers::CodegenDrawTriangle(const std::string &name, TriDrawVariant variant, TriBlendMode blendmode, bool truecolor)
{
llvm::IRBuilder<> builder(mProgram.context());
SSAScope ssa_scope(&mProgram.context(), mProgram.module(), &builder);
SSAFunction function(name + mNamePostfix);
function.add_parameter(GetTriDrawTriangleArgs(mProgram.context()));
function.add_parameter(GetWorkerThreadDataStruct(mProgram.context()));
function.create_public();
DrawTriangleCodegen codegen;
codegen.Generate(variant, blendmode, truecolor, function.parameter(0), function.parameter(1));
builder.CreateRetVoid();
if (llvm::verifyFunction(*function.func))
throw Exception(std::string("verifyFunction failed for CodegenDrawTriangle(") + std::to_string((int)variant) + ", " + std::to_string((int)blendmode) + ", " + std::to_string((int)truecolor) + ")");
}
llvm::Type *LLVMDrawers::GetDrawColumnArgsStruct(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // uint32_t *dest;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint32_t *source;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint32_t *source2;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // uint8_t *colormap;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // uint8_t *translation;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint32_t *basecolors;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t pitch;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t count;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t dest_y;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t iscale;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t texturefracx;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t textureheight;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t texturefrac;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t light;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t color;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t srccolor;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t srcalpha;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t destalpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_alpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_red;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_green;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_blue;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_alpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_red;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_green;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_blue;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t desaturate;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t flags;
return llvm::StructType::create(context, elements, "DrawColumnArgs", false)->getPointerTo();
}
llvm::Type *LLVMDrawers::GetDrawSpanArgsStruct(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // uint8_t *destorg;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint32_t *source;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t destpitch;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t xfrac;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t yfrac;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t xstep;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t ystep;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t x1;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t x2;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t y;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t xbits;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t ybits;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t light;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t srcalpha;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t destalpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_alpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_red;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_green;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_blue;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_alpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_red;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_green;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_blue;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t desaturate;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t flags;
return llvm::StructType::create(context, elements, "DrawSpanArgs", false)->getPointerTo();
}
llvm::Type *LLVMDrawers::GetDrawWallArgsStruct(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
elements.push_back(llvm::Type::getInt8PtrTy(context));
for (int i = 0; i < 8; i++)
elements.push_back(llvm::Type::getInt8PtrTy(context));
for (int i = 0; i < 25; i++)
elements.push_back(llvm::Type::getInt32Ty(context));
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_alpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_red;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_green;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_blue;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_alpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_red;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_green;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_blue;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t desaturate;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t flags;
return llvm::StructType::create(context, elements, "DrawWallArgs", false)->getPointerTo();
}
llvm::Type *LLVMDrawers::GetDrawSkyArgsStruct(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
elements.push_back(llvm::Type::getInt8PtrTy(context));
for (int i = 0; i < 8; i++)
elements.push_back(llvm::Type::getInt8PtrTy(context));
for (int i = 0; i < 15; i++)
elements.push_back(llvm::Type::getInt32Ty(context));
return llvm::StructType::create(context, elements, "DrawSkyArgs", false)->getPointerTo();
}
llvm::Type *LLVMDrawers::GetWorkerThreadDataStruct(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
for (int i = 0; i < 4; i++)
elements.push_back(llvm::Type::getInt32Ty(context));
elements.push_back(llvm::Type::getInt8PtrTy(context));
return llvm::StructType::create(context, elements, "ThreadData", false)->getPointerTo();
}
llvm::Type *LLVMDrawers::GetTriVertexStruct(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
for (int i = 0; i < 4 + TriVertex::NumVarying; i++)
elements.push_back(llvm::Type::getFloatTy(context));
return llvm::StructType::create(context, elements, "TriVertex", false)->getPointerTo();
}
llvm::Type *LLVMDrawers::GetTriMatrixStruct(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
for (int i = 0; i < 4 * 4; i++)
elements.push_back(llvm::Type::getFloatTy(context));
return llvm::StructType::create(context, elements, "TriMatrix", false)->getPointerTo();
}
llvm::Type *LLVMDrawers::GetTriUniformsStruct(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t light;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t subsectorDepth;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t color;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t srcalpha;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t destalpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_alpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_red;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_green;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t light_blue;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_alpha;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_red;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_green;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t fade_blue;
elements.push_back(llvm::Type::getInt16Ty(context)); // uint16_t desaturate;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t flags;
elements.push_back(GetTriMatrixStruct(context)); // TriMatrix objectToClip
return llvm::StructType::create(context, elements, "TriUniforms", false)->getPointerTo();
}
llvm::Type *LLVMDrawers::GetTriDrawTriangleArgs(llvm::LLVMContext &context)
{
std::vector<llvm::Type *> elements;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // uint8_t *dest;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t pitch;
elements.push_back(GetTriVertexStruct(context)); // TriVertex *v1;
elements.push_back(GetTriVertexStruct(context)); // TriVertex *v2;
elements.push_back(GetTriVertexStruct(context)); // TriVertex *v3;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t clipleft;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t clipright;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t cliptop;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t clipbottom;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint8_t *texturePixels;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t textureWidth;
elements.push_back(llvm::Type::getInt32Ty(context)); // uint32_t textureHeight;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint8_t *translation;
elements.push_back(GetTriUniformsStruct(context)); // const TriUniforms *uniforms;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // uint8_t *stencilValues;
elements.push_back(llvm::Type::getInt32PtrTy(context)); // uint32_t *stencilMasks;
elements.push_back(llvm::Type::getInt32Ty(context)); // int32_t stencilPitch;
elements.push_back(llvm::Type::getInt8Ty(context)); // uint8_t stencilTestValue;
elements.push_back(llvm::Type::getInt8Ty(context)); // uint8_t stencilWriteValue;
elements.push_back(llvm::Type::getInt32PtrTy(context)); // uint32_t *subsectorGBuffer;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint8_t *colormaps;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint8_t *RGB32k;
elements.push_back(llvm::Type::getInt8PtrTy(context)); // const uint8_t *BaseColors;
return llvm::StructType::create(context, elements, "TriDrawTriangle", false)->getPointerTo();
}
/////////////////////////////////////////////////////////////////////////////
LLVMProgram::LLVMProgram()
{
mContext = std::make_unique<llvm::LLVMContext>();
}
void LLVMProgram::CreateModule()
{
mModule = std::make_unique<llvm::Module>("render", context());
}
std::string LLVMProgram::GenerateAssembly(std::string cpuName)
{
using namespace llvm;
std::string errorstring;
llvm::Module *module = mModule.get();
EngineBuilder engineBuilder(std::move(mModule));
engineBuilder.setErrorStr(&errorstring);
engineBuilder.setOptLevel(CodeGenOpt::Aggressive);
engineBuilder.setEngineKind(EngineKind::JIT);
engineBuilder.setMCPU(cpuName);
machine = engineBuilder.selectTarget();
if (!machine)
throw Exception("Could not create LLVM target machine");
#if LLVM_VERSION_MAJOR < 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 8)
std::string targetTriple = machine->getTargetTriple();
#else
std::string targetTriple = machine->getTargetTriple().getTriple();
#endif
module->setTargetTriple(targetTriple);
#if LLVM_VERSION_MAJOR < 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 8)
module->setDataLayout(new DataLayout(*machine->getSubtargetImpl()->getDataLayout()));
#else
module->setDataLayout(machine->createDataLayout());
#endif
legacy::FunctionPassManager PerFunctionPasses(module);
legacy::PassManager PerModulePasses;
#if LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 8)
PerFunctionPasses.add(createTargetTransformInfoWrapperPass(machine->getTargetIRAnalysis()));
PerModulePasses.add(createTargetTransformInfoWrapperPass(machine->getTargetIRAnalysis()));
#endif
SmallString<16 * 1024> str;
#if LLVM_VERSION_MAJOR < 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 8)
raw_svector_ostream vecstream(str);
formatted_raw_ostream stream(vecstream);
#else
raw_svector_ostream stream(str);
#endif
machine->addPassesToEmitFile(PerModulePasses, stream, TargetMachine::CGFT_AssemblyFile);
PassManagerBuilder passManagerBuilder;
passManagerBuilder.OptLevel = 3;
passManagerBuilder.SizeLevel = 0;
passManagerBuilder.Inliner = createFunctionInliningPass();
passManagerBuilder.SLPVectorize = true;
passManagerBuilder.LoopVectorize = true;
passManagerBuilder.LoadCombine = true;
passManagerBuilder.populateModulePassManager(PerModulePasses);
passManagerBuilder.populateFunctionPassManager(PerFunctionPasses);
// Run function passes:
PerFunctionPasses.doInitialization();
for (llvm::Function &func : *module)
{
if (!func.isDeclaration())
PerFunctionPasses.run(func);
}
PerFunctionPasses.doFinalization();
// Run module passes:
PerModulePasses.run(*module);
return str.c_str();
}
std::vector<uint8_t> LLVMProgram::GenerateObjectFile(std::string cpuName)
{
using namespace llvm;
std::string errorstring;
llvm::Module *module = mModule.get();
EngineBuilder engineBuilder(std::move(mModule));
engineBuilder.setErrorStr(&errorstring);
engineBuilder.setOptLevel(CodeGenOpt::Aggressive);
engineBuilder.setEngineKind(EngineKind::JIT);
engineBuilder.setMCPU(cpuName);
machine = engineBuilder.selectTarget();
if (!machine)
throw Exception("Could not create LLVM target machine");
#if LLVM_VERSION_MAJOR < 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 8)
std::string targetTriple = machine->getTargetTriple();
#else
std::string targetTriple = machine->getTargetTriple().getTriple();
#endif
module->setTargetTriple(targetTriple);
#if LLVM_VERSION_MAJOR < 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 8)
module->setDataLayout(new DataLayout(*machine->getSubtargetImpl()->getDataLayout()));
#else
module->setDataLayout(machine->createDataLayout());
#endif
legacy::FunctionPassManager PerFunctionPasses(module);
legacy::PassManager PerModulePasses;
#if LLVM_VERSION_MAJOR > 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR >= 8)
PerFunctionPasses.add(createTargetTransformInfoWrapperPass(machine->getTargetIRAnalysis()));
PerModulePasses.add(createTargetTransformInfoWrapperPass(machine->getTargetIRAnalysis()));
#endif
SmallString<16 * 1024> str;
#if LLVM_VERSION_MAJOR < 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 8)
raw_svector_ostream vecstream(str);
formatted_raw_ostream stream(vecstream);
#else
raw_svector_ostream stream(str);
#endif
machine->addPassesToEmitFile(PerModulePasses, stream, TargetMachine::CGFT_ObjectFile);
PassManagerBuilder passManagerBuilder;
passManagerBuilder.OptLevel = 3;
passManagerBuilder.SizeLevel = 0;
passManagerBuilder.Inliner = createFunctionInliningPass();
passManagerBuilder.SLPVectorize = true;
passManagerBuilder.LoopVectorize = true;
passManagerBuilder.LoadCombine = true;
passManagerBuilder.populateModulePassManager(PerModulePasses);
passManagerBuilder.populateFunctionPassManager(PerFunctionPasses);
// Run function passes:
PerFunctionPasses.doInitialization();
for (llvm::Function &func : *module)
{
if (!func.isDeclaration())
PerFunctionPasses.run(func);
}
PerFunctionPasses.doFinalization();
// Run module passes:
PerModulePasses.run(*module);
// Return the resulting object file
std::vector<uint8_t> data;
data.resize(str.size());
memcpy(data.data(), str.data(), data.size());
return data;
}
std::string LLVMProgram::DumpModule()
{
std::string str;
llvm::raw_string_ostream stream(str);
#if LLVM_VERSION_MAJOR < 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 8)
mModule->print(stream, nullptr);
#else
mModule->print(stream, nullptr, false, true);
#endif
return stream.str();
}
/////////////////////////////////////////////////////////////////////////////
#include <chrono>
#include <thread>
int main(int argc, char **argv)
{
if (argc != 2)
{
std::cerr << "Usage: " << argv[0] << "<output filename>" << std::endl;
return 1;
}
llvm::install_fatal_error_handler([](void *user_data, const std::string& reason, bool gen_crash_diag)
{
std::cerr << "LLVM fatal error: " << reason;
exit(1);
});
llvm::InitializeNativeTarget();
llvm::InitializeNativeTargetAsmPrinter();
std::string cpuName = "pentium4";
std::cout << "Compiling drawer code for " << cpuName << ".." << std::endl;
LLVMDrawers drawersSSE2(cpuName, "_SSE2");
FILE *file = fopen(argv[1], "wb");
if (file == nullptr)
{
std::cerr << "Unable to open " << argv[1] << " for writing." << std::endl;
return 1;
}
int result = fwrite(drawersSSE2.ObjectFile.data(), drawersSSE2.ObjectFile.size(), 1, file);
fclose(file);
if (result != 1)
{
std::cerr << "Could not write data to " << argv[1] << std::endl;
return 1;
}
//LLVMDrawers drawersSSE4("core2");
//LLVMDrawers drawersAVX("sandybridge");
//LLVMDrawers drawersAVX2("haswell");
using namespace std::chrono_literals;
std::this_thread::sleep_for(2s); // Doh! Silly OS!
return 0;
}
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