1 #include <msp/strings/format.h>
2 #include <msp/strings/utils.h>
5 #include "programcompiler.h"
13 using namespace ProgramSyntax;
15 ProgramCompiler::ProgramCompiler():
19 void ProgramCompiler::compile(const string &source)
21 module = &parser.parse(source);
25 void ProgramCompiler::compile(IO::Base &io)
27 module = &parser.parse(io);
31 void ProgramCompiler::add_shaders(Program &program)
34 throw invalid_operation("ProgramCompiler::add_shaders");
36 string head = "#version 150\n";
37 if(module->vertex_context.present)
38 program.attach_shader_owned(new VertexShader(head+format_context(module->vertex_context)));
39 if(module->geometry_context.present)
40 program.attach_shader_owned(new GeometryShader(head+format_context(module->geometry_context)));
41 if(module->fragment_context.present)
42 program.attach_shader_owned(new FragmentShader(head+format_context(module->fragment_context)));
44 program.bind_attribute(VERTEX4, "vertex");
45 program.bind_attribute(NORMAL3, "normal");
46 program.bind_attribute(COLOR4_FLOAT, "color");
47 program.bind_attribute(TEXCOORD4, "texcoord");
50 void ProgramCompiler::process()
52 if(module->vertex_context.present)
53 process(module->vertex_context);
54 if(module->geometry_context.present)
55 process(module->geometry_context);
56 if(module->fragment_context.present)
57 process(module->fragment_context);
60 void ProgramCompiler::process(Context &context)
62 inject_block(context.content, module->global_context.content);
65 void ProgramCompiler::inject_block(Block &target, const Block &source)
67 list<NodePtr<Node> >::iterator insert_point = target.body.begin();
68 for(list<NodePtr<Node> >::const_iterator i=source.body.begin(); i!=source.body.end(); ++i)
69 target.body.insert(insert_point, (*i)->clone());
72 string ProgramCompiler::format_context(Context &context)
75 context.content.visit(formatter);
76 return formatter.formatted;
80 ProgramCompiler::Formatter::Formatter():
82 parameter_list(false),
86 void ProgramCompiler::Formatter::visit(Literal &literal)
88 formatted += literal.token;
91 void ProgramCompiler::Formatter::visit(ParenthesizedExpression &parexpr)
94 parexpr.expression->visit(*this);
98 void ProgramCompiler::Formatter::visit(VariableReference &var)
100 formatted += var.name;
103 void ProgramCompiler::Formatter::visit(MemberAccess &memacc)
105 memacc.left->visit(*this);
106 formatted += format(".%s", memacc.member);
109 void ProgramCompiler::Formatter::visit(UnaryExpression &unary)
112 formatted += unary.oper;
113 unary.expression->visit(*this);
115 formatted += unary.oper;
118 void ProgramCompiler::Formatter::visit(BinaryExpression &binary)
120 binary.left->visit(*this);
121 if(binary.assignment)
122 formatted += format(" %s ", binary.oper);
124 formatted += binary.oper;
125 binary.right->visit(*this);
126 formatted += binary.after;
129 void ProgramCompiler::Formatter::visit(FunctionCall &call)
131 formatted += format("%s(", call.name);
132 for(vector<NodePtr<Expression> >::iterator i=call.arguments.begin(); i!=call.arguments.end(); ++i)
134 if(i!=call.arguments.begin())
141 void ProgramCompiler::Formatter::visit(ExpressionStatement &expr)
143 expr.expression->visit(*this);
147 void ProgramCompiler::Formatter::visit(Block &block)
156 formatted += format("%s{\n", string(indent*2, ' '));
159 bool change_indent = (!formatted.empty() && !else_if);
160 indent += change_indent;
161 string spaces(indent*2, ' ');
162 for(list<NodePtr<Node> >::iterator i=block.body.begin(); i!=block.body.end(); ++i)
164 if(i!=block.body.begin())
170 indent -= change_indent;
173 formatted += format("\n%s}", string(indent*2, ' '));
176 void ProgramCompiler::Formatter::visit(Layout &layout)
178 formatted += "layout(";
179 for(vector<Layout::Qualifier>::const_iterator i=layout.qualifiers.begin(); i!=layout.qualifiers.end(); ++i)
181 if(i!=layout.qualifiers.begin())
183 formatted += i->identifier;
184 if(!i->value.empty())
185 formatted += format("=%s", i->value);
187 formatted += format(") %s;", layout.interface);
190 void ProgramCompiler::Formatter::visit(StructDeclaration &strct)
192 formatted += format("struct %s\n", strct.name);
193 strct.members.visit(*this);
197 void ProgramCompiler::Formatter::visit(VariableDeclaration &var)
200 formatted += "const ";
201 if(!var.sampling.empty())
202 formatted += format("%s ", var.sampling);
203 if(!var.interface.empty())
204 formatted += format("%s ", var.interface);
205 formatted += format("%s %s", var.type, var.name);
210 var.array_size->visit(*this);
213 if(var.init_expression)
216 var.init_expression->visit(*this);
222 void ProgramCompiler::Formatter::visit(InterfaceBlock &iface)
224 formatted += format("%s %s\n", iface.interface, iface.name);
225 iface.members.visit(*this);
229 void ProgramCompiler::Formatter::visit(FunctionDeclaration &func)
231 formatted += format("%s %s(", func.return_type, func.name);
232 parameter_list = true;
233 for(vector<NodePtr<VariableDeclaration> >::iterator i=func.parameters.begin(); i!=func.parameters.end(); ++i)
235 if(i!=func.parameters.begin())
239 parameter_list = false;
244 func.body.visit(*this);
250 void ProgramCompiler::Formatter::visit(Conditional &cond)
259 cond.condition->visit(*this);
262 cond.body.visit(*this);
263 if(!cond.else_body.body.empty())
265 formatted += format("\n%selse", string(indent*2, ' '));
267 cond.else_body.visit(*this);
272 void ProgramCompiler::Formatter::visit(Iteration &iter)
275 iter.init_statement->visit(*this);
277 iter.condition->visit(*this);
279 iter.loop_expression->visit(*this);
281 iter.body.visit(*this);
284 void ProgramCompiler::Formatter::visit(Return &ret)
286 formatted += "return ";
287 ret.expression->visit(*this);