godotengine/godot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
0b806ee0fc
godot/bin/tests/test_shader_lang.cpp
Juan Linietsky 0b806ee0fc GODOT IS OPEN SOURCE
2014-02-09 22:10:30 -03:00

340 lines
10 KiB
C++
Raw Blame History

/*************************************************************************/
/* test_shader_lang.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "test_shader_lang.h"
#include "os/main_loop.h"
#include "os/os.h"
#include "os/file_access.h"
#include "scene/gui/control.h"
#include "scene/gui/text_edit.h"
#include "print_string.h"
#include "servers/visual/shader_language.h"
#include "drivers/gles2/shader_compiler_gles2.h"
typedef ShaderLanguage SL;
namespace TestShaderLang {
static String _mktab(int p_level) {
String tb;
for(int i=0;i<p_level;i++) {
tb+="\t";
}
return tb;
}
static String _typestr(SL::DataType p_type) {
switch(p_type) {
case SL::TYPE_VOID: return "void";
case SL::TYPE_BOOL: return "bool";
case SL::TYPE_FLOAT: return "float";
case SL::TYPE_VEC2: return "vec2";
case SL::TYPE_VEC3: return "vec3";
case SL::TYPE_VEC4: return "vec4";
case SL::TYPE_MAT3: return "mat3";
case SL::TYPE_MAT4: return "mat4";
case SL::TYPE_TEXTURE: return "texture";
case SL::TYPE_CUBEMAP: return "cubemap";
default: {}
}
return "";
}
static String _opstr(SL::Operator p_op) {
switch(p_op) {
case SL::OP_ASSIGN: return "=";
case SL::OP_ADD: return "+";
case SL::OP_SUB: return "-";
case SL::OP_MUL: return "*";
case SL::OP_DIV: return "/";
case SL::OP_ASSIGN_ADD: return "+=";
case SL::OP_ASSIGN_SUB: return "-=";
case SL::OP_ASSIGN_MUL: return "*=";
case SL::OP_ASSIGN_DIV: return "/=";
case SL::OP_NEG: return "-";
case SL::OP_NOT: return "!";
case SL::OP_CMP_EQ: return "==";
case SL::OP_CMP_NEQ: return "!=";
case SL::OP_CMP_LEQ: return "<=";
case SL::OP_CMP_GEQ: return ">=";
case SL::OP_CMP_LESS: return "<";
case SL::OP_CMP_GREATER: return ">";
case SL::OP_CMP_OR: return "||";
case SL::OP_CMP_AND: return "&&";
default: return "";
}
return "";
}
static String dump_node_code(SL::Node *p_node,int p_level) {
String code;
switch(p_node->type) {
case SL::Node::TYPE_PROGRAM: {
SL::ProgramNode *pnode=(SL::ProgramNode*)p_node;
for(Map<StringName,SL::Uniform>::Element *E=pnode->uniforms.front();E;E=E->next()) {
String ucode="uniform ";
ucode+=_typestr(E->get().type)+"="+String(E->get().default_value)+"\n";
code+=ucode;
}
for(int i=0;i<pnode->functions.size();i++) {
SL::FunctionNode *fnode=pnode->functions[i].function;
String header;
header=_typestr(fnode->return_type)+" "+fnode->name+"(";
for(int i=0;i<fnode->arguments.size();i++) {
if (i>0)
header+=", ";
header+=_typestr(fnode->arguments[i].type)+" "+fnode->arguments[i].name;
}
header+=") {\n";
code+=header;
code+=dump_node_code(fnode->body,p_level+1);
code+="}\n";
}
code+=dump_node_code(pnode->body,p_level);
} break;
case SL::Node::TYPE_FUNCTION: {
} break;
case SL::Node::TYPE_BLOCK: {
SL::BlockNode *bnode=(SL::BlockNode*)p_node;
//variables
for(Map<StringName,SL::DataType>::Element *E=bnode->variables.front();E;E=E->next()) {
code+=_mktab(p_level)+_typestr(E->value())+" "+E->key()+";\n";
}
for(int i=0;i<bnode->statements.size();i++) {
code+=_mktab(p_level)+dump_node_code(bnode->statements[i],p_level)+";\n";
}
} break;
case SL::Node::TYPE_VARIABLE: {
SL::VariableNode *vnode=(SL::VariableNode*)p_node;
code=vnode->name;
} break;
case SL::Node::TYPE_CONSTANT: {
SL::ConstantNode *cnode=(SL::ConstantNode*)p_node;
switch(cnode->datatype) {
case SL::TYPE_BOOL: code=cnode->value.operator bool()?"true":"false"; break;
case SL::TYPE_FLOAT: code=cnode->value; break;
case SL::TYPE_VEC2: { Vector2 v = cnode->value; code="vec2("+rtos(v.x)+", "+rtos(v.y)+")"; } break;
case SL::TYPE_VEC3: { Vector3 v = cnode->value; code="vec3("+rtos(v.x)+", "+rtos(v.y)+", "+rtos(v.z)+")"; } break;
case SL::TYPE_VEC4: { Plane v = cnode->value; code="vec4("+rtos(v.normal.x)+", "+rtos(v.normal.y)+", "+rtos(v.normal.z)+", "+rtos(v.d)+")"; } break;
case SL::TYPE_MAT3: { Matrix3 x = cnode->value; code="mat3( vec3("+rtos(x.get_axis(0).x)+", "+rtos(x.get_axis(0).y)+", "+rtos(x.get_axis(0).z)+"), vec3("+rtos(x.get_axis(1).x)+", "+rtos(x.get_axis(1).y)+", "+rtos(x.get_axis(1).z)+"), vec3("+rtos(x.get_axis(2).x)+", "+rtos(x.get_axis(2).y)+", "+rtos(x.get_axis(2).z)+"))"; } break;
case SL::TYPE_MAT4: { Transform x = cnode->value; code="mat4( vec3("+rtos(x.basis.get_axis(0).x)+", "+rtos(x.basis.get_axis(0).y)+", "+rtos(x.basis.get_axis(0).z)+"), vec3("+rtos(x.basis.get_axis(1).x)+", "+rtos(x.basis.get_axis(1).y)+", "+rtos(x.basis.get_axis(1).z)+"), vec3("+rtos(x.basis.get_axis(2).x)+", "+rtos(x.basis.get_axis(2).y)+", "+rtos(x.basis.get_axis(2).z)+"), vec3("+rtos(x.origin.x)+", "+rtos(x.origin.y)+", "+rtos(x.origin.z)+"))"; } break;
default: code="<error: "+Variant::get_type_name(cnode->value.get_type())+" ("+itos(cnode->datatype)+">";
}
} break;
case SL::Node::TYPE_OPERATOR: {
SL::OperatorNode *onode=(SL::OperatorNode*)p_node;
switch(onode->op) {
case SL::OP_ASSIGN:
case SL::OP_ASSIGN_ADD:
case SL::OP_ASSIGN_SUB:
case SL::OP_ASSIGN_MUL:
case SL::OP_ASSIGN_DIV:
code=dump_node_code(onode->arguments[0],p_level)+_opstr(onode->op)+dump_node_code(onode->arguments[1],p_level);
break;
case SL::OP_ADD:
case SL::OP_SUB:
case SL::OP_MUL:
case SL::OP_DIV:
case SL::OP_CMP_EQ:
case SL::OP_CMP_NEQ:
case SL::OP_CMP_LEQ:
case SL::OP_CMP_GEQ:
case SL::OP_CMP_LESS:
case SL::OP_CMP_GREATER:
case SL::OP_CMP_OR:
case SL::OP_CMP_AND:
code="("+dump_node_code(onode->arguments[0],p_level)+_opstr(onode->op)+dump_node_code(onode->arguments[1],p_level)+")";
break;
case SL::OP_NEG:
case SL::OP_NOT:
code=_opstr(onode->op)+dump_node_code(onode->arguments[0],p_level);
break;
case SL::OP_CALL:
case SL::OP_CONSTRUCT:
code=dump_node_code(onode->arguments[0],p_level)+"(";
for(int i=1;i<onode->arguments.size();i++) {
if (i>1)
code+=", ";
code+=dump_node_code(onode->arguments[i],p_level);
}
code+=")";
break;
default: {}
}
} break;
case SL::Node::TYPE_CONTROL_FLOW: {
SL::ControlFlowNode *cfnode=(SL::ControlFlowNode*)p_node;
if (cfnode->flow_op==SL::FLOW_OP_IF) {
code+="if ("+dump_node_code(cfnode->statements[0],p_level)+") {\n";
code+=dump_node_code(cfnode->statements[1],p_level+1);
if (cfnode->statements.size()==3) {
code+="} else {\n";
code+=dump_node_code(cfnode->statements[2],p_level+1);
}
code+="}\n";
} else if (cfnode->flow_op==SL::FLOW_OP_RETURN) {
if (cfnode->statements.size()) {
code="return "+dump_node_code(cfnode->statements[0],p_level);
} else {
code="return";
}
}
} break;
case SL::Node::TYPE_MEMBER: {
SL::MemberNode *mnode=(SL::MemberNode*)p_node;
code=dump_node_code(mnode->owner,p_level)+"."+mnode->name;
} break;
}
return code;
}
static void recreate_code(void *p_str,SL::ProgramNode *p_program) {
print_line("recr");
String *str=(String*)p_str;
*str=dump_node_code(p_program,0);
}
MainLoop* test() {
List<String> cmdlargs = OS::get_singleton()->get_cmdline_args();
if (cmdlargs.empty()) {
//try editor!
return NULL;
}
String test = cmdlargs.back()->get();
FileAccess *fa = FileAccess::open(test,FileAccess::READ);
if (!fa) {
memdelete(fa);
ERR_FAIL_V(NULL);
}
String code;
while(true) {
CharType c = fa->get_8();
if (fa->eof_reached())
break;
code+=c;
}
int errline;
int errcol;
String error;
print_line(SL::lex_debug(code));
Error err = SL::compile(code,ShaderLanguage::SHADER_MATERIAL_FRAGMENT,NULL,NULL,&error,&errline,&errcol);
if (err) {
print_line("Error: "+itos(errline)+":"+itos(errcol)+" "+error);
return NULL;
}
print_line("Compile OK! - pretty printing");
String rcode;
err = SL::compile(code,ShaderLanguage::SHADER_MATERIAL_FRAGMENT,recreate_code,&rcode,&error,&errline,&errcol);
if (!err) {
print_line(rcode);
}
ShaderCompilerGLES2 comp;
String codeline,globalsline;
SL::VarInfo vi;
vi.name="mongs";
vi.type=SL::TYPE_VEC3;
ShaderCompilerGLES2::Flags fl;
comp.compile(code,ShaderLanguage::SHADER_MATERIAL_FRAGMENT,codeline,globalsline,fl);
return NULL;
}
}
Reference in New Issue View Git Blame Copy Permalink