Merge remote-tracking branch 'origin/gles3' into gles3-on-master

Various merge conflicts have been fixed manually and some mistakes
might have been made - time will tell :)

1 files changed, 839 insertions, 0 deletions

diff --git a/drivers/gles3/shader_gles3.cpp b/drivers/gles3/shader_gles3.cpp
new file mode 100644
index 0000000000..778d3b23ec
--- /dev/null
+++ b/drivers/gles3/shader_gles3.cpp
@@ -0,0 +1,839 @@
+/*************************************************************************/
+/*  shader_gles2.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 "shader_gles3.h"
+
+
+#include "print_string.h"
+
+//#define DEBUG_OPENGL
+
+#ifdef DEBUG_OPENGL
+
+#define DEBUG_TEST_ERROR(m_section)\
+{\
+	uint32_t err = glGetError();\
+	if (err) {\
+		print_line("OpenGL Error #"+itos(err)+" at: "+m_section);\
+	}\
+}
+#else
+
+#define DEBUG_TEST_ERROR(m_section)
+
+#endif
+
+ShaderGLES3 *ShaderGLES3::active=NULL;
+
+
+
+//#define DEBUG_SHADER
+
+#ifdef DEBUG_SHADER
+
+#define DEBUG_PRINT(m_text) print_line(m_text);
+
+#else
+
+#define DEBUG_PRINT(m_text)
+
+#endif
+
+
+void ShaderGLES3::bind_uniforms() {
+
+	if (!uniforms_dirty) {
+		return;
+	};
+
+	// upload default uniforms
+	const Map<uint32_t,Variant>::Element *E =uniform_defaults.front();
+
+	while(E) {
+		int idx=E->key();
+		int location=version->uniform_location[idx];
+
+		if (location<0) {
+			E=E->next();
+			continue;
+
+		}
+
+		const Variant &v=E->value();
+		_set_uniform_variant(location, v);
+		//print_line("uniform "+itos(location)+" value "+v+ " type "+Variant::get_type_name(v.get_type()));
+		E=E->next();
+	};
+
+	const Map<uint32_t,CameraMatrix>::Element* C = uniform_cameras.front();
+	while (C) {
+
+		int location = version->uniform_location[C->key()];
+		if (location<0) {
+			C=C->next();
+			continue;
+		}
+
+		glUniformMatrix4fv(location,1,false,&(C->get().matrix[0][0]));
+		C = C->next();
+	};
+
+	uniforms_dirty = false;
+};
+
+GLint ShaderGLES3::get_uniform_location(int p_idx) const {
+
+	ERR_FAIL_COND_V(!version, -1);
+
+	return version->uniform_location[p_idx];
+};
+
+bool ShaderGLES3::bind() {
+		
+	if (active!=this || !version || new_conditional_version.key!=conditional_version.key) {
+		conditional_version=new_conditional_version;
+		version = get_current_version();
+	} else {
+
+		return false;
+	}
+	
+	ERR_FAIL_COND_V(!version,false);
+
+	glUseProgram( version->id );
+
+	DEBUG_TEST_ERROR("Use Program");
+
+	active=this;
+	uniforms_dirty = true;
+/*
+ *	why on earth is this code here?
+	for (int i=0;i<texunit_pair_count;i++) {
+
+		glUniform1i(texunit_pairs[i].location, texunit_pairs[i].index);
+		DEBUG_TEST_ERROR("Uniform 1 i");
+	}
+
+*/
+	return true;
+}
+
+void ShaderGLES3::unbind() {
+
+	version=NULL;
+	glUseProgram(0);
+	uniforms_dirty = true;
+	active=NULL;
+}
+
+
+static void _display_error_with_code(const String& p_error,const Vector<const char*>& p_code) {
+
+
+	int line=1;
+	String total_code;
+
+	for(int i=0;i<p_code.size();i++) {
+		total_code+=String(p_code[i]);
+	}
+
+	Vector<String> lines = String(total_code).split("\n");
+
+	for(int j=0;j<lines.size();j++) {
+
+		print_line(itos(line)+": "+lines[j]);
+		line++;
+	}
+
+	ERR_PRINTS(p_error);
+
+}
+
+ShaderGLES3::Version* ShaderGLES3::get_current_version() {
+
+	Version *_v=version_map.getptr(conditional_version);
+
+	if (_v) {
+
+		if (conditional_version.code_version!=0) {
+			CustomCode *cc=custom_code_map.getptr(conditional_version.code_version);
+			ERR_FAIL_COND_V(!cc,_v);
+			if (cc->version==_v->code_version)
+				return _v;
+		} else {
+			return _v;
+		}
+
+	}
+
+
+
+	if (!_v)
+		version_map[conditional_version]=Version();
+
+
+	Version &v = version_map[conditional_version];
+
+	if (!_v) {
+
+		v.uniform_location = memnew_arr( GLint, uniform_count );
+
+	} else {
+		if (v.ok) {
+			//bye bye shaders
+			glDeleteShader( v.vert_id );
+			glDeleteShader( v.frag_id );
+			glDeleteProgram( v.id );
+			v.id=0;
+		}
+
+	}
+
+
+
+	v.ok=false;
+	/* SETUP CONDITIONALS */
+	
+	Vector<const char*> strings;
+#ifdef GLES_OVER_GL
+	strings.push_back("#version 330\n");
+#else
+	strings.push_back("#version 300 es\n");
+#endif
+
+
+
+	int define_line_ofs=1;
+
+	for(int i=0;i<custom_defines.size();i++) {
+
+		strings.push_back(custom_defines[i].get_data());
+		define_line_ofs++;
+	}
+
+	for(int j=0;j<conditional_count;j++) {
+		
+		bool enable=((1<<j)&conditional_version.version);
+		strings.push_back(enable?conditional_defines[j]:"");
+		if (enable)
+			define_line_ofs++;
+
+		if (enable) {
+			DEBUG_PRINT(conditional_defines[j]);
+		}
+
+	}
+
+
+	
+	//keep them around during the function
+	CharString code_string;
+	CharString code_string2;
+	CharString code_globals;
+	CharString material_string;
+
+
+	//print_line("code version? "+itos(conditional_version.code_version));
+
+	CustomCode *cc=NULL;
+
+	if ( conditional_version.code_version>0 ) {
+		//do custom code related stuff
+
+		ERR_FAIL_COND_V( !custom_code_map.has( conditional_version.code_version ), NULL );
+		cc=&custom_code_map[conditional_version.code_version];
+		v.code_version=cc->version;
+		define_line_ofs+=2;
+
+	}
+
+
+	/* CREATE PROGRAM */
+	
+	v.id = glCreateProgram();
+	
+	ERR_FAIL_COND_V(v.id==0, NULL);
+	
+	/* VERTEX SHADER */
+
+
+	if (cc) {
+		for(int i=0;i<cc->custom_defines.size();i++) {
+
+			strings.push_back(cc->custom_defines[i].get_data());
+			DEBUG_PRINT("CD #"+itos(i)+": "+String(cc->custom_defines[i]));
+		}
+	}
+
+	int strings_base_size=strings.size();
+
+	//vertex precision is high
+	strings.push_back("precision highp float;\n");
+	strings.push_back("precision highp int;\n");
+
+#if 0
+	if (cc) {
+
+		String _code_string = "#define VERTEX_SHADER_CODE "+cc->vertex+"\n";
+		String _code_globals = "#define VERTEX_SHADER_GLOBALS "+cc->vertex_globals+"\n";
+
+		code_string=_code_string.ascii();
+		code_globals=_code_globals.ascii();
+		DEBUG_PRINT( code_globals.get_data() );
+		DEBUG_PRINT( code_string.get_data() );
+		strings.push_back(code_globals);
+		strings.push_back(code_string);
+	}
+#endif
+
+
+	strings.push_back(vertex_code0.get_data());
+	if (cc) {
+		code_globals=cc->vertex_globals.ascii();
+		strings.push_back(code_globals.get_data());
+	}
+
+	strings.push_back(vertex_code1.get_data());
+
+	if (cc) {
+		material_string=cc->uniforms.ascii();
+		strings.push_back(material_string.get_data());
+	}
+
+	strings.push_back(vertex_code2.get_data());
+
+	if (cc) {
+		code_string=cc->vertex.ascii();
+		strings.push_back(code_string.get_data());
+	}
+
+	strings.push_back(vertex_code3.get_data());
+#ifdef DEBUG_SHADER
+
+	DEBUG_PRINT("\nVertex Code:\n\n"+String(code_string.get_data()));
+	for(int i=0;i<strings.size();i++) {
+
+		//print_line("vert strings "+itos(i)+":"+String(strings[i]));
+	}
+#endif
+
+
+	v.vert_id = glCreateShader(GL_VERTEX_SHADER);
+	glShaderSource(v.vert_id,strings.size(),&strings[0],NULL);
+	glCompileShader(v.vert_id);
+	
+	GLint status;
+	
+	glGetShaderiv(v.vert_id,GL_COMPILE_STATUS,&status);			
+	if (status==GL_FALSE) {
+	// error compiling
+		GLsizei iloglen;
+		glGetShaderiv(v.vert_id,GL_INFO_LOG_LENGTH,&iloglen);
+		
+		if (iloglen<0) {
+			
+			glDeleteShader(v.vert_id);
+			glDeleteProgram( v.id );
+			v.id=0;
+			
+			ERR_PRINT("NO LOG, WTF");
+		} else {
+
+			if (iloglen==0) {
+
+				iloglen = 4096; //buggy driver (Adreno 220+....)
+			}
+
+			
+			char *ilogmem = (char*)Memory::alloc_static(iloglen+1);
+			ilogmem[iloglen]=0;
+			glGetShaderInfoLog(v.vert_id, iloglen, &iloglen, ilogmem); 	
+			
+			String err_string=get_shader_name()+": Vertex Program Compilation Failed:\n";
+			
+			err_string+=ilogmem;
+			_display_error_with_code(err_string,strings);
+			Memory::free_static(ilogmem);
+			glDeleteShader(v.vert_id);
+			glDeleteProgram( v.id );
+			v.id=0;
+			
+		}
+		
+		ERR_FAIL_V(NULL);
+	}	
+
+
+	/* FRAGMENT SHADER */
+
+	strings.resize(strings_base_size);
+	//fragment precision is medium
+	strings.push_back("precision highp float;\n");
+	strings.push_back("precision highp int;\n");
+
+#if 0
+	if (cc) {
+
+		String _code_string = "#define FRAGMENT_SHADER_CODE "+cc->fragment+"\n";
+		String _code_globals = "#define FRAGMENT_SHADER_GLOBALS "+cc->fragment_globals+"\n";
+
+		code_string=_code_string.ascii();
+		code_globals=_code_globals.ascii();
+		DEBUG_PRINT( code_globals.get_data() );
+		DEBUG_PRINT( code_string.get_data() );
+		strings.push_back(code_globals);
+		strings.push_back(code_string);
+	}
+#endif
+
+
+	strings.push_back(fragment_code0.get_data());
+	if (cc) {
+		code_globals=cc->fragment_globals.ascii();
+		strings.push_back(code_globals.get_data());
+	}
+
+	strings.push_back(fragment_code1.get_data());
+
+	if (cc) {
+		material_string=cc->uniforms.ascii();
+		strings.push_back(material_string.get_data());
+	}
+
+	strings.push_back(fragment_code2.get_data());
+
+	if (cc) {
+		code_string=cc->fragment.ascii();
+		strings.push_back(code_string.get_data());
+	}
+
+	strings.push_back(fragment_code3.get_data());
+
+	if (cc) {
+		code_string2=cc->light.ascii();
+		strings.push_back(code_string2.get_data());
+	}
+
+	strings.push_back(fragment_code4.get_data());
+
+#ifdef DEBUG_SHADER
+	DEBUG_PRINT("\nFragment Code:\n\n"+String(code_string.get_data()));
+	for(int i=0;i<strings.size();i++) {
+
+		//print_line("frag strings "+itos(i)+":"+String(strings[i]));
+	}
+#endif
+
+	v.frag_id = glCreateShader(GL_FRAGMENT_SHADER);
+	glShaderSource(v.frag_id,strings.size(),&strings[0],NULL);
+	glCompileShader(v.frag_id);
+	
+	glGetShaderiv(v.frag_id,GL_COMPILE_STATUS,&status);			
+	if (status==GL_FALSE) {
+	// error compiling
+		GLsizei iloglen;
+		glGetShaderiv(v.frag_id,GL_INFO_LOG_LENGTH,&iloglen);
+		
+		if (iloglen<0) {
+
+			glDeleteShader(v.frag_id);
+			glDeleteShader(v.vert_id);
+			glDeleteProgram( v.id );
+			v.id=0;
+			ERR_PRINT("NO LOG, WTF");
+		} else {
+			
+			if (iloglen==0) {
+
+				iloglen = 4096; //buggy driver (Adreno 220+....)
+			}
+
+			char *ilogmem = (char*)Memory::alloc_static(iloglen+1);
+			ilogmem[iloglen]=0;
+			glGetShaderInfoLog(v.frag_id, iloglen, &iloglen, ilogmem); 	
+			
+			String err_string=get_shader_name()+": Fragment Program Compilation Failed:\n";
+			
+			err_string+=ilogmem;
+			_display_error_with_code(err_string,strings);
+			ERR_PRINT(err_string.ascii().get_data());
+			Memory::free_static(ilogmem);
+			glDeleteShader(v.frag_id);
+			glDeleteShader(v.vert_id);
+			glDeleteProgram( v.id );
+			v.id=0;
+			
+		}
+		
+		ERR_FAIL_V( NULL );
+	}		
+
+	glAttachShader(v.id,v.frag_id);
+	glAttachShader(v.id,v.vert_id);
+
+	// bind attributes before linking
+	for (int i=0;i<attribute_pair_count;i++) {
+
+		glBindAttribLocation(v.id, attribute_pairs[i].index, attribute_pairs[i].name );
+	}
+
+	//if feedback exists, set it up
+
+	if (feedback_count) {
+		Vector<const char*> feedback;
+		for(int i=0;i<feedback_count;i++) {
+
+			if (feedbacks[i].conditional==-1 || (1<<feedbacks[i].conditional)&conditional_version.version) {
+				//conditional for this feedback is enabled
+				print_line("tf varying: "+itos(feedback.size())+" "+String(feedbacks[i].name));
+				feedback.push_back(feedbacks[i].name);
+			}
+		}
+
+		if (feedback.size()) {
+			glTransformFeedbackVaryings(v.id,feedback.size(),feedback.ptr(),GL_INTERLEAVED_ATTRIBS );
+		}
+
+	}
+
+	glLinkProgram(v.id);
+	
+	glGetProgramiv(v.id, GL_LINK_STATUS, &status);
+	
+	if (status==GL_FALSE) {
+	// error linking
+		GLsizei iloglen;
+		glGetProgramiv(v.id,GL_INFO_LOG_LENGTH,&iloglen);
+		
+		if (iloglen<0) {
+			
+			glDeleteShader(v.frag_id);
+			glDeleteShader(v.vert_id);
+			glDeleteProgram( v.id );
+			v.id=0;
+			ERR_FAIL_COND_V(iloglen<=0, NULL);		
+		}
+
+		if (iloglen==0) {
+
+			iloglen = 4096; //buggy driver (Adreno 220+....)
+		}
+
+		
+		char *ilogmem = (char*)Memory::alloc_static(iloglen+1);
+		ilogmem[iloglen]=0;
+		glGetProgramInfoLog(v.id, iloglen, &iloglen, ilogmem); 	
+		
+		String err_string=get_shader_name()+": Program LINK FAILED:\n";
+		
+		err_string+=ilogmem;
+		_display_error_with_code(err_string,strings);
+		ERR_PRINT(err_string.ascii().get_data());
+		Memory::free_static(ilogmem);
+		glDeleteShader(v.frag_id);
+		glDeleteShader(v.vert_id);
+		glDeleteProgram( v.id );
+		v.id=0;
+		
+		ERR_FAIL_V(NULL);
+	}
+	
+	/* UNIFORMS */		
+	
+	glUseProgram(v.id);
+
+
+	//print_line("uniforms:  ");
+	for(int j=0;j<uniform_count;j++) {
+		
+		
+		v.uniform_location[j]=glGetUniformLocation(v.id,uniform_names[j]);
+	//	print_line("uniform "+String(uniform_names[j])+" location "+itos(v.uniform_location[j]));
+	}
+	
+	// set texture uniforms
+	for (int i=0;i<texunit_pair_count;i++) {
+
+		GLint loc = glGetUniformLocation(v.id,texunit_pairs[i].name);
+		if (loc>=0) {
+			if (texunit_pairs[i].index<0) {
+				glUniform1i(loc,max_image_units+texunit_pairs[i].index); //negative, goes down
+			} else {
+
+				glUniform1i(loc,texunit_pairs[i].index);
+			}
+		}
+	}
+
+	// assign uniform block bind points
+	for (int i=0;i<ubo_count;i++) {
+
+		GLint loc =  glGetUniformBlockIndex(v.id,ubo_pairs[i].name);
+		if (loc>=0)
+			 glUniformBlockBinding(v.id,loc,ubo_pairs[i].index);
+	}
+
+	if ( cc ) {
+
+		v.texture_uniform_locations.resize(cc->texture_uniforms.size());
+		for(int i=0;i<cc->texture_uniforms.size();i++) {
+
+			v.texture_uniform_locations[i]=glGetUniformLocation(v.id,String(cc->texture_uniforms[i]).ascii().get_data());
+			glUniform1i(v.texture_uniform_locations[i],i+base_material_tex_index);
+		}
+	}
+
+	glUseProgram(0);
+	
+
+	v.ok=true;
+
+	return &v;
+}
+
+GLint ShaderGLES3::get_uniform_location(const String& p_name) const {
+
+	ERR_FAIL_COND_V(!version,-1);
+	return glGetUniformLocation(version->id,p_name.ascii().get_data());
+}
+
+
+void ShaderGLES3::setup(const char** p_conditional_defines, int p_conditional_count,const char** p_uniform_names,int p_uniform_count, const AttributePair* p_attribute_pairs, int p_attribute_count, const TexUnitPair *p_texunit_pairs, int p_texunit_pair_count, const UBOPair *p_ubo_pairs, int p_ubo_pair_count, const Feedback* p_feedback, int p_feedback_count,const char*p_vertex_code, const char *p_fragment_code,int p_vertex_code_start,int p_fragment_code_start) {
+
+	ERR_FAIL_COND(version);
+	conditional_version.key=0;
+	new_conditional_version.key=0;
+	uniform_count=p_uniform_count;
+	conditional_count=p_conditional_count;
+	conditional_defines=p_conditional_defines;
+	uniform_names=p_uniform_names;
+	vertex_code=p_vertex_code;
+	fragment_code=p_fragment_code;
+	texunit_pairs=p_texunit_pairs;
+	texunit_pair_count=p_texunit_pair_count;
+	vertex_code_start=p_vertex_code_start;
+	fragment_code_start=p_fragment_code_start;
+	attribute_pairs=p_attribute_pairs;
+	attribute_pair_count=p_attribute_count;
+	ubo_pairs=p_ubo_pairs;
+	ubo_count=p_ubo_pair_count;
+	feedbacks=p_feedback;
+	feedback_count=p_feedback_count;
+
+	//split vertex and shader code (thank you, retarded shader compiler programmers from you know what company).
+	{
+		String globals_tag="\nVERTEX_SHADER_GLOBALS";
+		String material_tag="\nMATERIAL_UNIFORMS";
+		String code_tag="\nVERTEX_SHADER_CODE";
+		String code =  vertex_code;
+		int cpos = code.find(globals_tag);
+		if (cpos==-1) {
+			vertex_code0=code.ascii();
+		} else {
+			vertex_code0=code.substr(0,cpos).ascii();
+			code = code.substr(cpos+globals_tag.length(),code.length());
+
+			cpos = code.find(material_tag);
+
+			if (cpos==-1) {
+				vertex_code1=code.ascii();
+			} else {
+
+				vertex_code1=code.substr(0,cpos).ascii();
+				String code2 = code.substr(cpos+material_tag.length(),code.length());
+
+				cpos = code2.find(code_tag);
+				if (cpos==-1) {
+					vertex_code2=code2.ascii();
+				} else {
+
+					vertex_code2=code2.substr(0,cpos).ascii();
+					vertex_code3 = code2.substr(cpos+code_tag.length(),code2.length()).ascii();
+				}
+
+			}
+		}
+	}
+
+	{
+		String globals_tag="\nFRAGMENT_SHADER_GLOBALS";
+		String material_tag="\nMATERIAL_UNIFORMS";
+		String code_tag="\nFRAGMENT_SHADER_CODE";
+		String light_code_tag="\nLIGHT_SHADER_CODE";
+		String code =  fragment_code;
+		int cpos = code.find(globals_tag);
+		if (cpos==-1) {
+			fragment_code0=code.ascii();
+		} else {
+			fragment_code0=code.substr(0,cpos).ascii();
+			//print_line("CODE0:\n"+String(fragment_code0.get_data()));
+			code = code.substr(cpos+globals_tag.length(),code.length());			
+			cpos = code.find(material_tag);
+
+			if (cpos==-1) {
+				fragment_code1=code.ascii();
+			} else {
+
+				fragment_code1=code.substr(0,cpos).ascii();
+				//print_line("CODE1:\n"+String(fragment_code1.get_data()));
+
+				String code2 = code.substr(cpos+material_tag.length(),code.length());
+				cpos = code2.find(code_tag);
+
+				if (cpos==-1) {
+					fragment_code2=code2.ascii();
+				} else {
+
+					fragment_code2=code2.substr(0,cpos).ascii();
+					//print_line("CODE2:\n"+String(fragment_code2.get_data()));
+
+					String code3 = code2.substr(cpos+code_tag.length(),code2.length());
+
+					cpos = code3.find(light_code_tag);
+					if (cpos==-1) {
+						fragment_code3=code3.ascii();
+					} else {
+
+						fragment_code3=code3.substr(0,cpos).ascii();
+					//	print_line("CODE3:\n"+String(fragment_code3.get_data()));
+						fragment_code4 = code3.substr(cpos+light_code_tag.length(),code3.length()).ascii();
+						//print_line("CODE4:\n"+String(fragment_code4.get_data()));
+					}
+				}
+			}
+		}
+	}
+
+	glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS,&max_image_units);
+
+}
+
+void ShaderGLES3::finish() {
+	
+	const VersionKey *V=NULL;
+	while((V=version_map.next(V))) {
+	
+		Version &v=version_map[*V];
+		glDeleteShader( v.vert_id );
+		glDeleteShader( v.frag_id );
+		glDeleteProgram( v.id );
+		memdelete_arr( v.uniform_location );			
+
+	}
+	
+}
+
+
+void ShaderGLES3::clear_caches() {
+
+	const VersionKey *V=NULL;
+	while((V=version_map.next(V))) {
+	
+		Version &v=version_map[*V];
+		glDeleteShader( v.vert_id );
+		glDeleteShader( v.frag_id );
+		glDeleteProgram( v.id );
+		memdelete_arr( v.uniform_location );
+	}
+
+	version_map.clear();
+
+	custom_code_map.clear();
+	version=NULL;	
+	last_custom_code=1;
+	uniforms_dirty = true;
+
+}
+
+uint32_t ShaderGLES3::create_custom_shader() {
+
+	custom_code_map[last_custom_code]=CustomCode();
+	custom_code_map[last_custom_code].version=1;
+	return last_custom_code++;
+}
+
+void ShaderGLES3::set_custom_shader_code(uint32_t p_code_id, const String& p_vertex, const String& p_vertex_globals, const String& p_fragment, const String& p_light, const String& p_fragment_globals, const String &p_uniforms, const Vector<StringName> &p_texture_uniforms, const Vector<CharString> &p_custom_defines) {
+
+	ERR_FAIL_COND(!custom_code_map.has(p_code_id));
+	CustomCode *cc=&custom_code_map[p_code_id];
+
+
+	cc->vertex=p_vertex;
+	cc->vertex_globals=p_vertex_globals;
+	cc->fragment=p_fragment;
+	cc->fragment_globals=p_fragment_globals;
+	cc->light=p_light;
+	cc->texture_uniforms=p_texture_uniforms;
+	cc->uniforms=p_uniforms;
+	cc->custom_defines=p_custom_defines;
+	cc->version++;
+}
+
+void ShaderGLES3::set_custom_shader(uint32_t p_code_id) {
+
+	new_conditional_version.code_version=p_code_id;
+}
+
+void ShaderGLES3::free_custom_shader(uint32_t p_code_id) {
+
+  /*  if (! custom_code_map.has( p_code_id )) {
+        print_line("no code id "+itos(p_code_id));
+    } else {
+        print_line("freed code id "+itos(p_code_id));
+
+    }*/
+
+	ERR_FAIL_COND(! custom_code_map.has( p_code_id ));
+	if (conditional_version.code_version==p_code_id)
+		conditional_version.code_version=0; //bye
+
+	custom_code_map.erase(p_code_id);
+
+}
+
+void ShaderGLES3::set_base_material_tex_index(int p_idx) {
+
+	base_material_tex_index=p_idx;
+}
+
+ShaderGLES3::ShaderGLES3() {
+	version=NULL;
+	last_custom_code=1;
+	uniforms_dirty = true;
+	base_material_tex_index=0;
+
+}
+
+
+ShaderGLES3::~ShaderGLES3() {
+	
+	finish();
+}
+
+
+