OGLShader::OGLShader(const string& sName, const string& sProgram, const string& sDefines)
: m_sName(sName),
m_sProgram(sProgram)
{
m_hFragmentShader = glproc::CreateShaderObject(GL_FRAGMENT_SHADER);
const char * pProgramStrs[2];
pProgramStrs[0] = sDefines.c_str();
pProgramStrs[1] = m_sProgram.c_str();
glproc::ShaderSource(m_hFragmentShader, 2, pProgramStrs, 0);
glproc::CompileShader(m_hFragmentShader);
GLContext::getCurrent()->checkError("OGLShader::OGLShader: glCompileShader()");
dumpInfoLog(m_hFragmentShader);
m_hProgram = glproc::CreateProgramObject();
glproc::AttachObject(m_hProgram, m_hFragmentShader);
glproc::LinkProgram(m_hProgram);
GLContext::getCurrent()->checkError("OGLShader::OGLShader: glLinkProgram()");
GLint bLinked;
glproc::GetObjectParameteriv(m_hProgram, GL_OBJECT_LINK_STATUS_ARB, &bLinked);
dumpInfoLog(m_hProgram);
if (!bLinked) {
AVG_TRACE(Logger::ERROR, "Linking shader program '"+sName+"' failed. Aborting.");
exit(-1);
}
}
OGLShader::OGLShader(const string& sName, const string& sVertProgram,
const string& sFragProgram, const string& sVertPrefix, const string& sFragPrefix)
: m_sName(sName),
m_sVertProgram(sVertProgram),
m_sFragProgram(sFragProgram)
{
m_hProgram = glproc::CreateProgram();
glproc::BindAttribLocation(m_hProgram, VertexArray::TEX_INDEX, "a_TexCoord");
glproc::BindAttribLocation(m_hProgram, VertexArray::COLOR_INDEX, "a_Color");
glproc::BindAttribLocation(m_hProgram, VertexArray::POS_INDEX, "a_Pos");
m_hVertexShader = compileShader(GL_VERTEX_SHADER, sVertProgram, sVertPrefix);
glproc::AttachShader(m_hProgram, m_hVertexShader);
m_hFragmentShader = compileShader(GL_FRAGMENT_SHADER, sFragProgram, sFragPrefix);
glproc::AttachShader(m_hProgram, m_hFragmentShader);
glproc::LinkProgram(m_hProgram);
GLContext::checkError("OGLShader::OGLShader: glLinkProgram()");
GLint bLinked;
glproc::GetProgramiv(m_hProgram, GL_LINK_STATUS, &bLinked);
if (!bLinked) {
AVG_LOG_ERROR("Linking shader program '"+sName+"' failed. Aborting.");
dumpInfoLog(m_hVertexShader, Logger::severity::ERROR);
dumpInfoLog(m_hFragmentShader, Logger::severity::ERROR);
dumpInfoLog(m_hProgram, Logger::severity::ERROR, true);
exit(-1);
} else {
AVG_TRACE(Logger::category::SHADER, Logger::severity::INFO,
"Linking shader program '"+sName+"'.");
dumpInfoLog(m_hVertexShader, Logger::severity::INFO);
dumpInfoLog(m_hFragmentShader, Logger::severity::INFO);
dumpInfoLog(m_hProgram, Logger::severity::INFO, true);
}
m_pShaderRegistry = &*ShaderRegistry::get();
m_TransformParam = *getParam<glm::mat4>("transform");
}
