diff options
Diffstat (limited to 'drivers/gles3/shader_gles3.cpp')
| -rw-r--r-- | drivers/gles3/shader_gles3.cpp | 839 |
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(); +} + + + |