Move core engine tests to core/

1 files changed, 361 insertions, 0 deletions

diff --git a/core/tests/test_shader_lang.cpp b/core/tests/test_shader_lang.cpp
new file mode 100644
index 0000000000..1a677bcbe2
--- /dev/null
+++ b/core/tests/test_shader_lang.cpp
@@ -0,0 +1,361 @@
+/*************************************************************************/
+/*  test_shader_lang.cpp                                                 */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 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) {
+
+	return ShaderLanguage::get_datatype_name(p_type);
+
+	return "";
+}
+
+
+static String _prestr(SL::DataPrecision p_pres) {
+
+
+	switch(p_pres) {
+		case SL::PRECISION_LOWP: return "lowp ";
+		case SL::PRECISION_MEDIUMP: return "mediump ";
+		case SL::PRECISION_HIGHP: return "highp ";
+		case SL::PRECISION_DEFAULT: return "";
+	}
+	return "";
+}
+
+
+static String _opstr(SL::Operator p_op) {
+
+	return ShaderLanguage::get_operator_text(p_op);
+
+
+}
+
+
+static String get_constant_text(SL::DataType p_type, const Vector<SL::ConstantNode::Value>& p_values) {
+
+	switch(p_type) {
+		case SL::TYPE_BOOL:  return p_values[0].boolean?"true":"false";
+		case SL::TYPE_BVEC2:  return String()+"bvec2("+(p_values[0].boolean?"true":"false")+(p_values[1].boolean?"true":"false")+")";
+		case SL::TYPE_BVEC3:  return String()+"bvec3("+(p_values[0].boolean?"true":"false")+","+(p_values[1].boolean?"true":"false")+","+(p_values[2].boolean?"true":"false")+")";
+		case SL::TYPE_BVEC4:  return String()+"bvec4("+(p_values[0].boolean?"true":"false")+","+(p_values[1].boolean?"true":"false")+","+(p_values[2].boolean?"true":"false")+","+(p_values[3].boolean?"true":"false")+")";
+		case SL::TYPE_INT:  return rtos(p_values[0].sint);
+		case SL::TYPE_IVEC2:  return String()+"ivec2("+rtos(p_values[0].sint)+","+rtos(p_values[1].sint)+")";
+		case SL::TYPE_IVEC3:  return String()+"ivec3("+rtos(p_values[0].sint)+","+rtos(p_values[1].sint)+","+rtos(p_values[2].sint)+")";
+		case SL::TYPE_IVEC4:  return String()+"ivec4("+rtos(p_values[0].sint)+","+rtos(p_values[1].sint)+","+rtos(p_values[2].sint)+","+rtos(p_values[3].sint)+")";
+		case SL::TYPE_UINT:  return rtos(p_values[0].real);
+		case SL::TYPE_UVEC2:  return String()+"uvec2("+rtos(p_values[0].real)+","+rtos(p_values[1].real)+")";
+		case SL::TYPE_UVEC3:  return String()+"uvec3("+rtos(p_values[0].real)+","+rtos(p_values[1].real)+","+rtos(p_values[2].real)+")";
+		case SL::TYPE_UVEC4:  return String()+"uvec4("+rtos(p_values[0].real)+","+rtos(p_values[1].real)+","+rtos(p_values[2].real)+","+rtos(p_values[3].real)+")";
+		case SL::TYPE_FLOAT:  return rtos(p_values[0].real);
+		case SL::TYPE_VEC2:  return String()+"vec2("+rtos(p_values[0].real)+","+rtos(p_values[1].real)+")";
+		case SL::TYPE_VEC3:  return String()+"vec3("+rtos(p_values[0].real)+","+rtos(p_values[1].real)+","+rtos(p_values[2].real)+")";
+		case SL::TYPE_VEC4:  return String()+"vec4("+rtos(p_values[0].real)+","+rtos(p_values[1].real)+","+rtos(p_values[2].real)+","+rtos(p_values[3].real)+")";
+		default: ERR_FAIL_V(String());
+	}
+}
+
+static String dump_node_code(SL::Node *p_node,int p_level) {
+
+	String code;
+
+	switch(p_node->type) {
+
+		case SL::Node::TYPE_SHADER: {
+
+			SL::ShaderNode *pnode=(SL::ShaderNode*)p_node;
+
+			for(Map<StringName,SL::ShaderNode::Uniform>::Element *E=pnode->uniforms.front();E;E=E->next()) {
+
+				String ucode="uniform ";
+				ucode+=_prestr(E->get().precission);
+				ucode+=_typestr(E->get().type);
+				ucode+=" "+String(E->key());
+
+				if (E->get().default_value.size()) {
+					ucode+=" = "+get_constant_text(E->get().type,E->get().default_value);
+				}
+
+				static const char*hint_name[SL::ShaderNode::Uniform::HINT_MAX]={
+					"",
+					"color",
+					"range",
+					"albedo",
+					"normal",
+					"black",
+					"white"
+				};
+
+				if (E->get().hint)
+					ucode+=" : "+String(hint_name[E->get().hint]);
+
+				code+=ucode+"\n";
+
+			}
+
+			for(Map<StringName,SL::ShaderNode::Varying>::Element *E=pnode->varyings.front();E;E=E->next()) {
+
+				String vcode="varying ";
+				vcode+=_prestr(E->get().precission);
+				vcode+=_typestr(E->get().type);
+				vcode+=" "+String(E->key());
+
+				code+=vcode+"\n";
+
+			}
+			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+=_prestr(fnode->arguments[i].precision)+_typestr(fnode->arguments[i].type)+" "+fnode->arguments[i].name;
+				}
+
+				header+=")\n";
+				code+=header;
+				code+=dump_node_code(fnode->body,p_level+1);
+			}
+
+			//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
+			code+=_mktab(p_level-1)+"{\n";
+			for(Map<StringName,SL::BlockNode::Variable>::Element *E=bnode->variables.front();E;E=E->next()) {
+
+				code+=_mktab(p_level)+_prestr(E->get().precision)+_typestr(E->get().type)+" "+E->key()+";\n";
+			}
+
+			for(int i=0;i<bnode->statements.size();i++) {
+
+				String scode = dump_node_code(bnode->statements[i],p_level);
+
+				if (bnode->statements[i]->type==SL::Node::TYPE_CONTROL_FLOW || bnode->statements[i]->type==SL::Node::TYPE_CONTROL_FLOW) {
+					code+=scode; //use directly
+				} else {
+					code+=_mktab(p_level)+scode+";\n";
+				}
+			}
+			code+=_mktab(p_level-1)+"}\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;
+			return get_constant_text(cnode->datatype,cnode->values);
+
+		} 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:
+				case SL::OP_ASSIGN_SHIFT_LEFT:
+				case SL::OP_ASSIGN_SHIFT_RIGHT:
+				case SL::OP_ASSIGN_MOD:
+				case SL::OP_ASSIGN_BIT_AND:
+				case SL::OP_ASSIGN_BIT_OR:
+				case SL::OP_ASSIGN_BIT_XOR:
+					code=dump_node_code(onode->arguments[0],p_level)+_opstr(onode->op)+dump_node_code(onode->arguments[1],p_level);
+					break;
+				case SL::OP_BIT_INVERT:
+				case SL::OP_NEGATE:
+				case SL::OP_NOT:
+				case SL::OP_DECREMENT:
+				case SL::OP_INCREMENT:
+					code=_opstr(onode->op)+dump_node_code(onode->arguments[0],p_level);
+					break;
+				case SL::OP_POST_DECREMENT:
+				case SL::OP_POST_INCREMENT:
+					code=dump_node_code(onode->arguments[0],p_level)+_opstr(onode->op);
+					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: {
+
+					code="("+dump_node_code(onode->arguments[0],p_level)+_opstr(onode->op)+dump_node_code(onode->arguments[1],p_level)+")";
+					break;
+
+				}
+			}
+
+		} break;
+		case SL::Node::TYPE_CONTROL_FLOW: {
+			SL::ControlFlowNode *cfnode=(SL::ControlFlowNode*)p_node;
+			if (cfnode->flow_op==SL::FLOW_OP_IF) {
+
+				code+=_mktab(p_level)+"if ("+dump_node_code(cfnode->expressions[0],p_level)+")\n";
+				code+=dump_node_code(cfnode->blocks[0],p_level+1);
+				if (cfnode->blocks.size()==2) {
+
+					code+=_mktab(p_level)+"else\n";
+					code+=dump_node_code(cfnode->blocks[1],p_level+1);
+				}
+
+
+			} else if (cfnode->flow_op==SL::FLOW_OP_RETURN) {
+
+				if (cfnode->blocks.size()) {
+					code="return "+dump_node_code(cfnode->blocks[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 Error recreate_code(void *p_str,SL::ShaderNode *p_program) {
+
+
+	String *str=(String*)p_str;
+
+	*str=dump_node_code(p_program,0);
+
+	return OK;
+}
+
+
+MainLoop* test() {
+
+	List<String> cmdlargs = OS::get_singleton()->get_cmdline_args();
+
+	if (cmdlargs.empty()) {
+		//try editor!
+		print_line("usage: godot -test shader_lang <shader>");
+		return NULL;
+	}
+
+	String test = cmdlargs.back()->get();
+
+	FileAccess *fa = FileAccess::open(test,FileAccess::READ);
+
+	if (!fa) {
+		ERR_FAIL_V(NULL);
+	}
+
+	String code;
+
+	while(true) {
+		CharType c = fa->get_8();
+		if (fa->eof_reached())
+			break;
+		code+=c;
+	}
+
+	SL sl;
+	print_line("tokens:\n\n"+sl.token_debug(code));
+
+	Map<StringName,Map<StringName,SL::DataType> > dt;
+	dt["fragment"]["ALBEDO"]=SL::TYPE_VEC3;
+
+	Set<String> rm;
+	rm.insert("popo");
+
+	Error err = sl.compile(code,dt,rm);
+
+	if (err) {
+
+		print_line("Error at line: "+rtos(sl.get_error_line())+": "+sl.get_error_text());
+		return NULL;
+	} else {
+		String code;
+		recreate_code(&code,sl.get_shader());
+		print_line("code:\n\n"+code);
+	}
+
+	return NULL;
+}
+
+
+}