Mercurial > hg > orthanc-stone
view Framework/OpenGL/OpenGLShader.cpp @ 925:4639d0bf6390
Added support for Grayscale16 in the multiframe loader (Victor)
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Mon, 22 Jul 2019 16:00:03 +0200 |
parents | 58e1faeafb1b |
children | 1091b2adeb5a |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2019 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "OpenGLShader.h" #include <Core/OrthancException.h> namespace OrthancStone { namespace OpenGL { static GLuint CompileShader(GLenum type, const std::string& source) { // Create shader object const GLchar* sourceString[1]; GLint sourceStringLengths[1]; sourceString[0] = source.c_str(); sourceStringLengths[0] = static_cast<GLint>(source.length()); GLuint shader = glCreateShader(type); if (shader == 0) { throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, "Cannot create an OpenGL shader"); } else { // Assign and compile the source to the shader object glShaderSource(shader, 1, sourceString, sourceStringLengths); glCompileShader(shader); // Check if there were errors int infoLen = 0; glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLen); if (infoLen > 1) // Might be equal to 1, which amounts to no error { std::string infoLog; infoLog.resize(infoLen + 1); glGetShaderInfoLog(shader, infoLen, NULL, &infoLog[0]); glDeleteShader(shader); throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, "Error while creating an OpenGL shader: " + infoLog); } else { return shader; } } } OpenGLShader::OpenGLShader(GLenum type, const std::string& source) { shader_ = CompileShader(type, source); isValid_ = true; } OpenGLShader::~OpenGLShader() { if (isValid_) { glDeleteShader(shader_); } } GLuint OpenGLShader::Release() { if (isValid_) { isValid_ = false; return shader_; } else { throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); } } } }