341 lines
10 KiB
C++
341 lines
10 KiB
C++
/*************************************************************************/
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/* test_shader_lang.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "test_shader_lang.h"
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#include "os/main_loop.h"
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#include "os/os.h"
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#include "os/file_access.h"
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#include "scene/gui/control.h"
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#include "scene/gui/text_edit.h"
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#include "print_string.h"
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#include "servers/visual/shader_language.h"
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#include "drivers/gles2/shader_compiler_gles2.h"
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typedef ShaderLanguage SL;
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namespace TestShaderLang {
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static String _mktab(int p_level) {
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String tb;
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for(int i=0;i<p_level;i++) {
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tb+="\t";
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}
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return tb;
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}
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static String _typestr(SL::DataType p_type) {
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switch(p_type) {
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case SL::TYPE_VOID: return "void";
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case SL::TYPE_BOOL: return "bool";
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case SL::TYPE_FLOAT: return "float";
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case SL::TYPE_VEC2: return "vec2";
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case SL::TYPE_VEC3: return "vec3";
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case SL::TYPE_VEC4: return "vec4";
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case SL::TYPE_MAT3: return "mat3";
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case SL::TYPE_MAT4: return "mat4";
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case SL::TYPE_TEXTURE: return "texture";
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case SL::TYPE_CUBEMAP: return "cubemap";
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default: {}
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}
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return "";
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}
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static String _opstr(SL::Operator p_op) {
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switch(p_op) {
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case SL::OP_ASSIGN: return "=";
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case SL::OP_ADD: return "+";
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case SL::OP_SUB: return "-";
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case SL::OP_MUL: return "*";
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case SL::OP_DIV: return "/";
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case SL::OP_ASSIGN_ADD: return "+=";
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case SL::OP_ASSIGN_SUB: return "-=";
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case SL::OP_ASSIGN_MUL: return "*=";
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case SL::OP_ASSIGN_DIV: return "/=";
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case SL::OP_NEG: return "-";
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case SL::OP_NOT: return "!";
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case SL::OP_CMP_EQ: return "==";
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case SL::OP_CMP_NEQ: return "!=";
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case SL::OP_CMP_LEQ: return "<=";
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case SL::OP_CMP_GEQ: return ">=";
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case SL::OP_CMP_LESS: return "<";
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case SL::OP_CMP_GREATER: return ">";
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case SL::OP_CMP_OR: return "||";
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case SL::OP_CMP_AND: return "&&";
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default: return "";
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}
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return "";
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}
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static String dump_node_code(SL::Node *p_node,int p_level) {
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String code;
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switch(p_node->type) {
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case SL::Node::TYPE_PROGRAM: {
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SL::ProgramNode *pnode=(SL::ProgramNode*)p_node;
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for(Map<StringName,SL::Uniform>::Element *E=pnode->uniforms.front();E;E=E->next()) {
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String ucode="uniform ";
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ucode+=_typestr(E->get().type)+"="+String(E->get().default_value)+"\n";
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code+=ucode;
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}
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for(int i=0;i<pnode->functions.size();i++) {
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SL::FunctionNode *fnode=pnode->functions[i].function;
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String header;
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header=_typestr(fnode->return_type)+" "+fnode->name+"(";
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for(int i=0;i<fnode->arguments.size();i++) {
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if (i>0)
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header+=", ";
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header+=_typestr(fnode->arguments[i].type)+" "+fnode->arguments[i].name;
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}
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header+=") {\n";
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code+=header;
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code+=dump_node_code(fnode->body,p_level+1);
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code+="}\n";
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}
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code+=dump_node_code(pnode->body,p_level);
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} break;
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case SL::Node::TYPE_FUNCTION: {
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} break;
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case SL::Node::TYPE_BLOCK: {
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SL::BlockNode *bnode=(SL::BlockNode*)p_node;
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//variables
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for(Map<StringName,SL::DataType>::Element *E=bnode->variables.front();E;E=E->next()) {
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code+=_mktab(p_level)+_typestr(E->value())+" "+E->key()+";\n";
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}
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for(int i=0;i<bnode->statements.size();i++) {
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code+=_mktab(p_level)+dump_node_code(bnode->statements[i],p_level)+";\n";
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}
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} break;
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case SL::Node::TYPE_VARIABLE: {
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SL::VariableNode *vnode=(SL::VariableNode*)p_node;
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code=vnode->name;
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} break;
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case SL::Node::TYPE_CONSTANT: {
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SL::ConstantNode *cnode=(SL::ConstantNode*)p_node;
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switch(cnode->datatype) {
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case SL::TYPE_BOOL: code=cnode->value.operator bool()?"true":"false"; break;
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case SL::TYPE_FLOAT: code=cnode->value; break;
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case SL::TYPE_VEC2: { Vector2 v = cnode->value; code="vec2("+rtos(v.x)+", "+rtos(v.y)+")"; } break;
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case SL::TYPE_VEC3: { Vector3 v = cnode->value; code="vec3("+rtos(v.x)+", "+rtos(v.y)+", "+rtos(v.z)+")"; } break;
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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;
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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;
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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;
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default: code="<error: "+Variant::get_type_name(cnode->value.get_type())+" ("+itos(cnode->datatype)+">";
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}
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} break;
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case SL::Node::TYPE_OPERATOR: {
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SL::OperatorNode *onode=(SL::OperatorNode*)p_node;
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switch(onode->op) {
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case SL::OP_ASSIGN:
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case SL::OP_ASSIGN_ADD:
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case SL::OP_ASSIGN_SUB:
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case SL::OP_ASSIGN_MUL:
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case SL::OP_ASSIGN_DIV:
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code=dump_node_code(onode->arguments[0],p_level)+_opstr(onode->op)+dump_node_code(onode->arguments[1],p_level);
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break;
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case SL::OP_ADD:
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case SL::OP_SUB:
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case SL::OP_MUL:
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case SL::OP_DIV:
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case SL::OP_CMP_EQ:
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case SL::OP_CMP_NEQ:
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case SL::OP_CMP_LEQ:
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case SL::OP_CMP_GEQ:
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case SL::OP_CMP_LESS:
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case SL::OP_CMP_GREATER:
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case SL::OP_CMP_OR:
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case SL::OP_CMP_AND:
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code="("+dump_node_code(onode->arguments[0],p_level)+_opstr(onode->op)+dump_node_code(onode->arguments[1],p_level)+")";
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break;
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case SL::OP_NEG:
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case SL::OP_NOT:
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code=_opstr(onode->op)+dump_node_code(onode->arguments[0],p_level);
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break;
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case SL::OP_CALL:
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case SL::OP_CONSTRUCT:
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code=dump_node_code(onode->arguments[0],p_level)+"(";
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for(int i=1;i<onode->arguments.size();i++) {
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if (i>1)
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code+=", ";
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code+=dump_node_code(onode->arguments[i],p_level);
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}
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code+=")";
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break;
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default: {}
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}
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} break;
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case SL::Node::TYPE_CONTROL_FLOW: {
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SL::ControlFlowNode *cfnode=(SL::ControlFlowNode*)p_node;
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if (cfnode->flow_op==SL::FLOW_OP_IF) {
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code+="if ("+dump_node_code(cfnode->statements[0],p_level)+") {\n";
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code+=dump_node_code(cfnode->statements[1],p_level+1);
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if (cfnode->statements.size()==3) {
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code+="} else {\n";
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code+=dump_node_code(cfnode->statements[2],p_level+1);
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}
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code+="}\n";
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} else if (cfnode->flow_op==SL::FLOW_OP_RETURN) {
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if (cfnode->statements.size()) {
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code="return "+dump_node_code(cfnode->statements[0],p_level);
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} else {
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code="return";
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}
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}
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} break;
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case SL::Node::TYPE_MEMBER: {
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SL::MemberNode *mnode=(SL::MemberNode*)p_node;
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code=dump_node_code(mnode->owner,p_level)+"."+mnode->name;
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} break;
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}
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return code;
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}
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static Error recreate_code(void *p_str,SL::ProgramNode *p_program) {
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print_line("recr");
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String *str=(String*)p_str;
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*str=dump_node_code(p_program,0);
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return OK;
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}
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MainLoop* test() {
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List<String> cmdlargs = OS::get_singleton()->get_cmdline_args();
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if (cmdlargs.empty()) {
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//try editor!
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return NULL;
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}
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String test = cmdlargs.back()->get();
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FileAccess *fa = FileAccess::open(test,FileAccess::READ);
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if (!fa) {
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ERR_FAIL_V(NULL);
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}
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String code;
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while(true) {
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CharType c = fa->get_8();
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if (fa->eof_reached())
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break;
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code+=c;
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}
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int errline;
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int errcol;
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String error;
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print_line(SL::lex_debug(code));
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Error err = SL::compile(code,ShaderLanguage::SHADER_MATERIAL_FRAGMENT,NULL,NULL,&error,&errline,&errcol);
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if (err) {
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print_line("Error: "+itos(errline)+":"+itos(errcol)+" "+error);
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return NULL;
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}
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print_line("Compile OK! - pretty printing");
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String rcode;
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err = SL::compile(code,ShaderLanguage::SHADER_MATERIAL_FRAGMENT,recreate_code,&rcode,&error,&errline,&errcol);
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if (!err) {
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print_line(rcode);
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}
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ShaderCompilerGLES2 comp;
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String codeline,globalsline;
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SL::VarInfo vi;
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vi.name="mongs";
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vi.type=SL::TYPE_VEC3;
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ShaderCompilerGLES2::Flags fl;
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comp.compile(code,ShaderLanguage::SHADER_MATERIAL_FRAGMENT,codeline,globalsline,fl);
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return NULL;
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}
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}
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