int ShaderProgram::loadShader(const char* shader_filepath, GLuint &shader)
{
// Read shader code
std::string shaderCode = "";
std::ifstream shaderStream(shader_filepath, std::ios::in);
if(shaderStream.is_open())
{
std::string Line = "";
while(getline(shaderStream, Line)) shaderCode += "\n" + Line;
shaderStream.close();
}
else { printf("Failed to open %s.\n", shader_filepath); getchar(); return -1;}
// Compile shader
//printf("Compiling shader: %s\n", shader_filepath);
char const* source = shaderCode.c_str();
glShaderSource(shader, 1, &source , NULL);
glCompileShader(shader);
// Check shader
GLint result = GL_FALSE; int infoLogLength;
glGetShaderiv(shader, GL_COMPILE_STATUS, &result);
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLogLength);
if (infoLogLength > 0)
{
std::vector<char> shaderErrorMessage(infoLogLength+1);
glGetShaderInfoLog(shader, infoLogLength, NULL, &shaderErrorMessage[0]);
printf("%s\n", &shaderErrorMessage[0]);
return -2;
}
return 0;
}
void Shader::LoadShader( const std::string &filename, int type ) {
GLuint shaderID = glCreateShader( type );
std::string shaderCode;
std::ifstream shaderStream( filename, std::ios::in );
if ( shaderStream.is_open() ) {
std::string line = "";
while ( getline( shaderStream, line ) ) {
shaderCode += "\n" + line;
}
shaderStream.close();
} else {
fprintf( stderr, "Error loading shader." );
return;
}
GLint result = GL_FALSE;
int infoLogLength;
char const *sourcePoint = shaderCode.c_str();
glShaderSource( shaderID, 1, &sourcePoint, NULL );
glCompileShader( shaderID );
glGetShaderiv( shaderID, GL_COMPILE_STATUS, &result );
glGetShaderiv( shaderID, GL_INFO_LOG_LENGTH, &infoLogLength );
std::vector<char> shaderErrorMessage( infoLogLength );
glGetShaderInfoLog( shaderID, infoLogLength, NULL, &shaderErrorMessage[ 0 ] );
// fprintf( stdout, "%s\n", &shaderErrorMessage[ 0 ] );
AttachShader( shaderID );
}
void Shader::buildShader(GLuint shaderLoc, const char* fileName) {
// Read the Vertex Shader code from the file
std::string shaderCode;
std::ifstream shaderStream(fileName, std::ios::in);
if (shaderStream.is_open()) {
std::string Line = "";
while (getline(shaderStream, Line))
shaderCode += "\n" + Line;
shaderStream.close();
} else {
LOG_FATAL(logger) << "Could not open file!";
}
// Compile Shader
char const * sourcePointer = shaderCode.c_str();
glShaderSource(shaderLoc, 1, &sourcePointer , NULL);
glCompileShader(shaderLoc);
// Check Vertex Shader
GLint Result = GL_FALSE;
int InfoLogLength;
glGetShaderiv(shaderLoc, GL_COMPILE_STATUS, &Result);
glGetShaderiv(shaderLoc, GL_INFO_LOG_LENGTH, &InfoLogLength);
std::vector<char> shaderErrorMessage(InfoLogLength);
glGetShaderInfoLog(shaderLoc, InfoLogLength, NULL, &shaderErrorMessage[0]);
if (!Result)
LOG_ERROR(logger) << &shaderErrorMessage[0];
}
GLint Shader::loadShader(GLint iType, const GLchar *file_path)
{
GLuint shaderID = glCreateShader(iType);
std::ifstream shaderStream(file_path, std::ios::in);
std::string shaderCode = "\0";
if (shaderStream.is_open())
{
std::string sLine = "\0";
while(getline(shaderStream, sLine))
{
shaderCode += "\n" + sLine;
}
shaderStream.close();
if (iType == GL_VERTEX_SHADER)
{
sVertexShaderCode = shaderCode;
}
else if(iType == GL_FRAGMENT_SHADER)
{
sFragmentShaderCode = shaderCode;
}
return shaderID;
}
else
{
printf("Failed to open %s. Are you in the right directory ? \n",
file_path);
getchar();
return -1;
}
}
/*
Az http://www.opengl-tutorial.org/ oldal alapján.
*/
GLuint loadShader(GLenum _shaderType, const char* _fileName)
{
// shader azonosito letrehozasa
GLuint loadedShader = glCreateShader( _shaderType );
// ha nem sikerult hibauzenet es -1 visszaadasa
if ( loadedShader == 0 )
{
fprintf(stderr, "Hiba a shader inicializálásakor (glCreateShader) %s!", _fileName);
return 0;
}
// shaderkod betoltese _fileName fajlbol
std::string shaderCode = "";
// _fileName megnyitasa
std::ifstream shaderStream(_fileName);
if ( !shaderStream.is_open() )
{
fprintf(stderr, "Hiba a %s shader fájl betöltésekor!", _fileName);
return 0;
}
// file tartalmanak betoltese a shaderCode string-be
std::string line = "";
while ( std::getline(shaderStream, line) )
{
shaderCode += line + " ";
}
shaderStream.close();
// fajlbol betoltott kod hozzarendelese a shader-hez
const char* sourcePointer = shaderCode.c_str();
glShaderSource( loadedShader, 1, &sourcePointer, NULL );
// shader leforditasa
glCompileShader( loadedShader );
// ellenorizzuk, h minden rendben van-e
GLint result = GL_FALSE;
int infoLogLength;
// forditas statuszanak lekerdezese
glGetShaderiv(loadedShader, GL_COMPILE_STATUS, &result);
glGetShaderiv(loadedShader, GL_INFO_LOG_LENGTH, &infoLogLength);
if ( GL_FALSE == result )
{
// hibauzenet elkerese es kiirasa
std::vector<char> VertexShaderErrorMessage(infoLogLength);
glGetShaderInfoLog(loadedShader, infoLogLength, NULL, &VertexShaderErrorMessage[0]);
fprintf(stdout, "%s/n", &VertexShaderErrorMessage[0]);
}
return loadedShader;
}
GLuint GlHelper::CreateShader(GLenum eShaderType, const std::string &strShaderFile) {
GLuint shader = glCreateShader(eShaderType);
std::string shaderCode;
std::ifstream shaderStream(strShaderFile.c_str(), std::ios::in);
if(shaderStream.is_open()) {
std::string Line = "";
while(getline(shaderStream, Line))
shaderCode += "\n" + Line;
shaderStream.close();
} else {
std::cerr << strShaderFile.c_str() << " dosyasi acilamadi. Uygulamanizi bu dosyanin oldugu dizinde calistirdiginizdan emin olunuz." << std::endl;
getchar();
return 0;
}
const char* shaderCodePtr = shaderCode.c_str();
glShaderSource(shader, 1, &shaderCodePtr, NULL);
glCompileShader(shader);
GLint status;
glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
if (status == GL_FALSE)
{
GLint infoLogLength;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLogLength);
GLchar *strInfoLog = new GLchar[infoLogLength + 1];
glGetShaderInfoLog(shader, infoLogLength, NULL, strInfoLog);
const char *strShaderType = NULL;
switch(eShaderType)
{
case GL_VERTEX_SHADER:
strShaderType = "vertex";
break;
case GL_GEOMETRY_SHADER:
strShaderType = "geometry";
break;
case GL_FRAGMENT_SHADER:
strShaderType = "fragment";
break;
}
std::cerr << strShaderType << " tipi shader dosyasi derlenemedi. Detaylar:\n" << strInfoLog << std::endl;
delete[] strInfoLog;
}
return shader;
}
GLuint GLHelper::createShader(GLenum eShaderType, const std::string &strShaderFile) {
GLuint shader = glCreateShader(eShaderType);
std::string shaderCode;
std::ifstream shaderStream(strShaderFile.c_str(), std::ios::in);
if (shaderStream.is_open()) {
std::string Line = "";
while (getline(shaderStream, Line))
shaderCode += "\n" + Line;
shaderStream.close();
} else {
std::cerr << strShaderFile.c_str() <<
" could not be read. Please ensure run directory if you used relative paths." << std::endl;
getchar();
return 0;
}
const char *shaderCodePtr = shaderCode.c_str();
glShaderSource(shader, 1, &shaderCodePtr, NULL);
glCompileShader(shader);
GLint status;
glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
if (status == GL_FALSE) {
GLint infoLogLength;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLogLength);
GLchar *strInfoLog = new GLchar[infoLogLength + 1];
glGetShaderInfoLog(shader, infoLogLength, NULL, strInfoLog);
const char *strShaderType = NULL;
switch (eShaderType) {
case GL_VERTEX_SHADER:
strShaderType = "vertex";
break;
case GL_GEOMETRY_SHADER:
strShaderType = "geometry";
break;
case GL_FRAGMENT_SHADER:
strShaderType = "fragment";
break;
}
std::cerr << strShaderType << " type shader " << strShaderFile.c_str() << " could not be compiled:\n" <<
strInfoLog << std::endl;
delete[] strInfoLog;
}
checkErrors("createShader");
return shader;
}
GLuint CreateShader(GLenum a_eShaderType, const char *a_strShaderFile)
{
std::string strShaderCode;
//open shader file
std::ifstream shaderStream(a_strShaderFile);
//if that worked ok, load file line by line
if (shaderStream.is_open())
{
std::string Line = "";
while (std::getline(shaderStream, Line))
{
strShaderCode += "\n" + Line;
}
shaderStream.close();
}
//convert to cstring
char const *szShaderSourcePointer = strShaderCode.c_str();
//create shader ID
GLuint uiShader = glCreateShader(a_eShaderType);
//load source code
glShaderSource(uiShader, 1, &szShaderSourcePointer, NULL);
//compile shader
glCompileShader(uiShader);
//Check for compiliation errors and output them
GLint iStatus;
glGetShaderiv(uiShader, GL_COMPILE_STATUS, &iStatus);
if (iStatus == GL_FALSE)
{
GLint infoLogLength;
glGetShaderiv(uiShader, GL_INFO_LOG_LENGTH, &infoLogLength);
GLchar *strInfoLog = new GLchar[infoLogLength + 1];
glGetShaderInfoLog(uiShader, infoLogLength, NULL, strInfoLog);
const char *strShaderType = NULL;
switch (a_eShaderType)
{
case GL_VERTEX_SHADER: strShaderType = "vertex"; break;
case GL_FRAGMENT_SHADER: strShaderType = "fragment"; break;
}
fprintf(stderr, "Compile failure in %s shader:\n%s\n", strShaderType, strInfoLog);
delete[] strInfoLog;
}
return uiShader;
}
std::string ShaderProgram::readShaderFile(const char *path) {
std::string shaderCode;
std::ifstream shaderStream(path, std::ios::in);
if(shaderStream.is_open()) {
std::string line = "";
while(getline(shaderStream, line)) {
shaderCode += "\n" + line;
}
shaderStream.close();
} else {
throw ShaderException(std::string("Could not open file ") + path);
}
return shaderCode;
}
GLuint compileShader(const char* shaderPath, GLenum shaderType) {
// Determine the type of shader
const char* shaderTypeName = getShaderName(shaderType);
if(shaderTypeName == NULL) {
Log::log_render(ERR) << "Unknown Shader Type '" << shaderType << "' Specified For: " << shaderPath;
return 0;
}
// Attempt to read the file path given
std::string shaderSource;
std::ifstream shaderStream(shaderPath, std::ios::in);
if(shaderStream.is_open()) {
std::string line = "";
while(getline(shaderStream, line)) shaderSource += "\n" + line;
shaderStream.close();
} else {
Log::log_render(ERR) << "Failed to Open Shader: " << shaderPath;
return 0;
}
GLuint shaderID = glCreateShader(shaderType);
registeredShaders.push_back(shaderID);
Log::log_render(INFO) << "Compiling " << shaderTypeName << " Shader [" << shaderID << "]: " << shaderPath;
// Attempt to compile shader
const char* sourcePointer = shaderSource.c_str();
glShaderSource(shaderID, 1, &sourcePointer, NULL);
glCompileShader(shaderID);
// Check on compile status
GLint result = GL_FALSE;
int infoLogLength;
glGetShaderiv(shaderID, GL_COMPILE_STATUS, &result);
glGetShaderiv(shaderID, GL_INFO_LOG_LENGTH, &infoLogLength);
char shaderErrorMessage[infoLogLength+1];
glGetShaderInfoLog(shaderID, infoLogLength, NULL, &shaderErrorMessage[0]);
if(!result) {
Log::log_render(ERR) << shaderTypeName << " Shader Error: " << shaderErrorMessage;
return 0;
}
return shaderID;
}
bool CTechnique::AddShader(GLenum shaderType, const char* pFileName)
{
std::ifstream shaderStream(pFileName, std::ios::in);
std::string shaderCode;
if (shaderStream.is_open()) {
std::string line = "";
while (std::getline(shaderStream, line))
shaderCode += "\n" + line;
shaderStream.close();
}
else
return false;
GLuint shaderObj = glCreateShader(shaderType);
if (shaderObj == 0)
return false;
m_shaderObjList.push_back(shaderObj);
const GLchar* p[1];
p[0] = shaderCode.c_str();
GLint lengths[1] = { (GLuint)shaderCode.size() };
glShaderSource(shaderObj, 1, p, lengths);
glCompileShader(shaderObj);
GLint success;
glGetShaderiv(shaderObj, GL_COMPILE_STATUS, &success);
if (!success) {
GLchar infoLog[1024];
glGetShaderInfoLog(shaderObj, 1024, NULL, infoLog);
OutputDebugStringA(infoLog);
}
glAttachShader(m_shaderProg, shaderObj);
return true;
}
std::string APP_OBJLoader::LoadShader(const char *a_filePath)
{
std::string strShaderCode; //file info holder
//open shader file
std::ifstream shaderStream(a_filePath);
//if that worked ok, load file line by line
if (shaderStream.is_open())
{
std::string Line = "";
while (std::getline(shaderStream, Line))
{
strShaderCode += "\n" + Line;
}
shaderStream.close();
}
return strShaderCode;
}
GLboolean Program::attachShader(std::string filename, GLenum type)
{
GLuint shaderId = glCreateShader(type);
std::string shaderCode;
std::ifstream shaderStream(filename, std::ios::in);
if(shaderStream.is_open())
{
std::string line = "";
while(getline(shaderStream, line))
shaderCode += "\n" + line;
shaderStream.close();
}
else
{
std::cerr << clog::err << "Cannot open " << filename << "." << std::endl;
std::cin.get();
return GL_FALSE;
}
GLint result = GL_FALSE;
GLint infoLogLength;
//compile vertex shader
std::cout << clog::inf << "Compiling shader (" << filename << ")..." << std::endl;
char const* sourcePointer = shaderCode.c_str();
glShaderSource(shaderId, 1, &sourcePointer , NULL);
glCompileShader(shaderId);
//check vertex shader
glGetShaderiv(shaderId, GL_COMPILE_STATUS, &result);
glGetShaderiv(shaderId, GL_INFO_LOG_LENGTH, &infoLogLength);
if(infoLogLength > 0)
{
std::vector<char> shaderErrorMessage(infoLogLength + 1);
glGetShaderInfoLog(shaderId, infoLogLength, NULL, &shaderErrorMessage[0]);
std::cerr << clog::err << &shaderErrorMessage[0] << std::endl;
}
glAttachShader(instance, shaderId);
//glDeleteShader(vertexShaderId);
return GL_TRUE;
}
std::string shaderhelper::loadShader(const std::string & shaderFilename)
{
std::string appPath = pathhelper::getApplicationPath();
std::string shaderPath = appPath + "/" + shaderFilename;
std::string shaderCode;
std::ifstream shaderStream(shaderPath.c_str(), std::ios::in);
if (shaderStream.is_open()) {
std::string Line;
while (getline(shaderStream, Line)) {
shaderCode += "\n" + Line;
}
shaderStream.close();
} else {
throw std::invalid_argument("Unable to open " + shaderPath);
}
return shaderCode;
}
/// <summary>
/// Loads the shader.
/// </summary>
/// <param name="filename">The filename.</param>
/// <param name="type">The type.</param>
/// <returns></returns>
GLuint ShaderProgram::LoadShader( const std::string& filename, GLenum type )
{
// Create the shader
GLuint shaderID = glCreateShader( type );
// Read the Shader code from the file
std::string shaderCode;
std::ifstream shaderStream( filename, std::ios::in );
if( shaderStream.is_open() )
{
std::string line = "";
while( getline( shaderStream, line ) )
shaderCode += "\n" + line;
shaderStream.close();
}
else
{
Debug::Log( "Could not find shader with path: " + filename );
return 0;
}
GLint result = GL_FALSE;
int infoLogLength;
// Compile Shader
Debug::Log( "Compiling shader: " + filename );
char const * sourcePointer = shaderCode.c_str();
glShaderSource( shaderID, 1, &sourcePointer, NULL );
glCompileShader( shaderID );
// Check Shader
glGetShaderiv( shaderID, GL_COMPILE_STATUS, &result );
glGetShaderiv( shaderID, GL_INFO_LOG_LENGTH, &infoLogLength );
std::vector<char> shaderErrorMessage( infoLogLength );
glGetShaderInfoLog( shaderID, infoLogLength, NULL, &shaderErrorMessage[0] );
Debug::Log( trim( std::string( shaderErrorMessage.begin(), shaderErrorMessage.end() ) ), LogType::Error );
CHECK_GL_ERROR();
return shaderID;
}
void modifyShader(std::string& shader)
{
std::istringstream shaderStream(shader);
std::string line;
std::getline(shaderStream, line);
std::string mod_shader("#version 300 es\n");
std::unordered_map<std::string, int>::iterator it;
std::unordered_map<std::string, int>::iterator it1;
while (std::getline(shaderStream, line))
{
if (line.find("GL_ARB_separate_shader_objects") != std::string::npos ||
line.find("GL_ARB_shading_language_420pack") != std::string::npos)
continue;
std::unordered_map<std::string, int> tokens;
getTokens(tokens, line);
if ((it = tokens.find("uniform")) != tokens.end() && checkSamplers(tokens)){
int layout_pos = tokens["layout"];
mod_shader += ((layout_pos > 0) ? line.substr(0, layout_pos) : "") + line.substr(it->second) + "\n";
}
else if ((it = tokens.find("layout")) != tokens.end() && tokens.find("uniform")==tokens.end() && tokens.find("num_views") == tokens.end()) {
it1 = tokens.find("in");
if (it1 == tokens.end())
it1 = tokens.find("out");
int pos = it->second;
if(it1 != tokens.end())
mod_shader += ((pos > 0) ? line.substr(0, pos) : "") + line.substr(it1->second) + "\n";
}
else
{
mod_shader += line + "\n";
}
}
shader = mod_shader;
}
GLuint loadShader(string file_path, GLuint shader)
{
GLuint shaderID = glCreateShader(shader);
string shaderCode;
ifstream shaderStream(file_path, std::ios::in);
if (shaderStream.is_open())
{
string Line = "";
while (getline(shaderStream, Line)) shaderCode += "\n" + Line;
shaderStream.close();
}
else
{
cerr << "Cannot open: " << file_path << endl;
return 0;
}
cout << "Compiling shader: " << file_path << endl;
char const* sourcePointer = shaderCode.c_str();
glShaderSource(shaderID, 1, &sourcePointer, NULL);
glCompileShader(shaderID);
GLint result = 0;
glGetShaderiv(shaderID, GL_COMPILE_STATUS, &result);
if (result == GL_FALSE)
{
GLint infoLogLength = 0;
glGetShaderiv(shaderID, GL_INFO_LOG_LENGTH, &infoLogLength);
vector<char> shaderErrorMessage(infoLogLength);
glGetShaderInfoLog(shaderID, infoLogLength, NULL, &shaderErrorMessage[0]);
cerr << &shaderErrorMessage[0] << endl;
return 0;
}
return shaderID;
}
bool Shader::loadShader(const char * filePath, shader_type_t shaderType) {
std::string shaderCode;
std::ifstream shaderStream(filePath, std::ios::in);
if (shaderStream.is_open()) {
std::string line = "";
while (getline(shaderStream, line)) {
shaderCode += '\n' + line;
}
shaderStream.close();
} else {
std::cerr << "Couldn't open file\n";
return false;
}
shaderID = glCreateShader(shaderType);
const char * sourcePointer = shaderCode.c_str();
glShaderSource(shaderID, 1, &sourcePointer, NULL);
glCompileShader(shaderID);
int compilationStatus = 0;
glGetShaderiv(shaderID, GL_COMPILE_STATUS, &compilationStatus);
if (compilationStatus == GL_FALSE) {
char infoLog[1024];
int logLength;
glGetShaderInfoLog(shaderID, 1024, &logLength, infoLog);
std::cerr << "Error! Shader File " << filePath << " wasn't compiled! The compiler returned:\n\n" << infoLog << '\n';
return false;
}
this->shaderType = shaderType;
loaded = true;
return true;
}
std::string APP_SpotRotate::LoadShader(const char *a_filePath)
{
std::string strShaderCode; //file info holder
//open shader file
std::ifstream shaderStream(a_filePath);
//if that worked ok, load file line by line
if (shaderStream.is_open())
{
std::string Line = "";
while (std::getline(shaderStream, Line))
{
strShaderCode += "\n" + Line;
}
shaderStream.close();
}
//a_shaderResult = strShaderCode.c_str();
//const char* result = strShaderCode.c_str();
//(_result) = (*result);
return strShaderCode; //not in use
}
bool
ShaderD3D11::createEffect ()
{
try
{
uint32_t hlslFlags = 0;
{
hlslFlags = D3D10_SHADER_ENABLE_BACKWARDS_COMPATIBILITY;
}
ID3D10Blob * shaderCode = 0;
ID3D10Blob * errors = 0;
std::vector<D3D10_SHADER_MACRO> vectorDefines;
if (_defines.size() > 0)
{
for (auto it = _defines.begin(); it != _defines.end(); it++)
{
D3D10_SHADER_MACRO macro = {(*it).first.c_str(), (*it).second.c_str()};
vectorDefines.push_back (macro);
}
D3D10_SHADER_MACRO nullMacro = {0, 0};
vectorDefines.push_back (nullMacro);
_hash.build(shaderStream());
if(FAILED(D3DCompile(shaderStream().c_str(), shaderStream().size(), 0, (const D3D_SHADER_MACRO*)&*vectorDefines.begin(), nullptr, "", "fx_5_0",
hlslFlags, 0, &shaderCode, &errors)))
{
// LOG ("Failed to compile ... " << shaderStream() << "\n");
LOG ("Failed to compile " << IShader::filePathName());
if(errors)
{
char* buffer = new char[errors->GetBufferSize()+1];
memset(&buffer[0], 0, errors->GetBufferSize()+1);
memcpy(&buffer[0], errors->GetBufferPointer(), errors->GetBufferSize());
// LOG ("Error Compiling ShaderD3D11" << buffer);
generateDumpFile(IShader::filePathName(), buffer, shaderStream());
delete[] (buffer);
}
return false;
}
}
else
{
_hash.build(shaderStream());
if(FAILED(D3DCompile(shaderStream().c_str(), shaderStream().size(), 0, 0, nullptr, "", "fx_5_0",
D3DCOMPILE_ENABLE_BACKWARDS_COMPATIBILITY | D3DCOMPILE_SKIP_OPTIMIZATION
, 0, &shaderCode, &errors)))
{
LOG ("Failed to compile " << IShader::filePathName());
// Open file and dump error information.
if(errors)
{
char* buffer = new char[errors->GetBufferSize()+1];
memset(&buffer[0], 0, errors->GetBufferSize()+1);
memcpy(&buffer[0], errors->GetBufferPointer(), errors->GetBufferSize());
generateDumpFile(IShader::filePathName(), buffer, shaderStream());
LOG ("Error Compiling ShaderD3D11" << buffer);
delete[] (buffer);
}
return false;
}
}
safedeletearray (_compiledBuffer);
_compiledBufferSize = shaderCode->GetBufferSize();
_compiledBuffer = new char[_compiledBufferSize];
memcpy (_compiledBuffer, shaderCode->GetBufferPointer(), _compiledBufferSize * sizeof(char));
// Create effect
ID3DX11Effect* effect = 0;
if(FAILED(D3DX11CreateEffectFromMemory(_compiledBuffer, _compiledBufferSize, 0, _direct3d, &effect)))
{
LOG ("FAILED to create effect from memory ... \n");
}
else
{
_effect = new EffectD3D11 (effect);
return true;
}
}
catch(...)
{
LOG ("Something bad and unknown happened while creating the shader");
}
return false;
}
