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Diffstat (limited to 'demos/boxes/glshaders.cpp')
| -rw-r--r-- | demos/boxes/glshaders.cpp | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/demos/boxes/glshaders.cpp b/demos/boxes/glshaders.cpp deleted file mode 100644 index b6999a8..0000000 --- a/demos/boxes/glshaders.cpp +++ /dev/null @@ -1,266 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Qt Software Information (qt-info@nokia.com) -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at qt-sales@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "glshaders.h" - -#define GLSHADERS_ASSERT_OPENGL(prefix, assertion, returnStatement) \ -if (m_failed || !(assertion)) { \ - if (!m_failed) qCritical(prefix ": The necessary OpenGL functions are not available."); \ - m_failed = true; \ - returnStatement; \ -} - - -GLShader::GLShader(const char *data, int size, GLenum shaderType) -: m_compileError(false), m_failed(false) -{ - GLSHADERS_ASSERT_OPENGL("GLShader::GLShader", - glCreateShaderObjectARB && glShaderSourceARB && glCompileShaderARB && glGetObjectParameterivARB, return) - - m_shader = glCreateShaderObjectARB(shaderType); - - GLint glSize = size; - glShaderSourceARB(m_shader, 1, &data, &glSize); - glCompileShaderARB(m_shader); - int status; - glGetObjectParameterivARB(m_shader, GL_OBJECT_COMPILE_STATUS_ARB, &status); - m_compileError = (status != 1); -} - -GLShader::GLShader(const QString& fileName, GLenum shaderType) - : m_compileError(false), m_failed(false) -{ - GLSHADERS_ASSERT_OPENGL("GLShader::GLShader", - glCreateShaderObjectARB && glShaderSourceARB && glCompileShaderARB && glGetObjectParameterivARB, return) - - m_shader = glCreateShaderObjectARB(shaderType); - - QFile file(fileName); - if (file.open(QIODevice::ReadOnly)) { - QByteArray bytes = file.readAll(); - GLint size = file.size(); - const char *p = bytes.data(); - file.close(); - glShaderSourceARB(m_shader, 1, &p, &size); - glCompileShaderARB(m_shader); - int status; - glGetObjectParameterivARB(m_shader, GL_OBJECT_COMPILE_STATUS_ARB, &status); - m_compileError = (status != 1); - } else { - m_compileError = true; - } -} - -GLShader::~GLShader() -{ - GLSHADERS_ASSERT_OPENGL("GLShader::~GLShader", glDeleteObjectARB, return) - - glDeleteObjectARB(m_shader); -} - -QString GLShader::log() -{ - GLSHADERS_ASSERT_OPENGL("GLShader::log", glGetObjectParameterivARB - && glGetInfoLogARB, return QLatin1String("GLSL not supported.")) - - int length; - glGetObjectParameterivARB(m_shader, GL_OBJECT_INFO_LOG_LENGTH_ARB, &length); - char *log = new char[length + 1]; - GLsizei glLength = length; - glGetInfoLogARB(m_shader, glLength, &glLength, log); - log[glLength] = '\0'; - QString result(log); - delete log; - return result; -} - -GLVertexShader::GLVertexShader(const char *data, int size) : GLShader(data, size, GL_VERTEX_SHADER_ARB) -{ -} - -GLVertexShader::GLVertexShader(const QString& fileName) : GLShader(fileName, GL_VERTEX_SHADER_ARB) -{ -} - -GLFragmentShader::GLFragmentShader(const char *data, int size) : GLShader(data, size, GL_FRAGMENT_SHADER_ARB) -{ -} - -GLFragmentShader::GLFragmentShader(const QString& fileName) : GLShader(fileName, GL_FRAGMENT_SHADER_ARB) -{ -} - -GLProgram::GLProgram() : m_linked(false), m_linkError(false), m_failed(false) -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::GLProgram", glCreateProgramObjectARB, return) - - m_program = glCreateProgramObjectARB(); -} - -GLProgram::~GLProgram() -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::~GLProgram", glDeleteObjectARB, return) - - glDeleteObjectARB(m_program); -} - -void GLProgram::attach(const GLShader &shader) -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::attach", glAttachObjectARB, return) - - glAttachObjectARB(m_program, shader.m_shader); - m_linked = m_linkError = false; -} - -void GLProgram::detach(const GLShader &shader) -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::detach", glDetachObjectARB, return) - - glDetachObjectARB(m_program, shader.m_shader); - m_linked = m_linkError = false; -} - -bool GLProgram::failed() -{ - if (m_failed || m_linkError) - return true; - - if (m_linked) - return false; - - GLSHADERS_ASSERT_OPENGL("GLProgram::failed", glLinkProgramARB && glGetObjectParameterivARB, return true) - - glLinkProgramARB(m_program); - int status; - glGetObjectParameterivARB(m_program, GL_OBJECT_LINK_STATUS_ARB, &status); - m_linkError = !(m_linked = (status == 1)); - return m_linkError; -} - -QString GLProgram::log() -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::log", glGetObjectParameterivARB && glGetInfoLogARB, - return QLatin1String("Failed.")) - - int length; - glGetObjectParameterivARB(m_program, GL_OBJECT_INFO_LOG_LENGTH_ARB, &length); - char *log = new char[length + 1]; - GLsizei glLength = length; - glGetInfoLogARB(m_program, glLength, &glLength, log); - log[glLength] = '\0'; - QString result(log); - delete log; - return result; -} - -void GLProgram::bind() -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::bind", glUseProgramObjectARB, return) - - if (!failed()) - glUseProgramObjectARB(m_program); -} - -void GLProgram::unbind() -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::bind", glUseProgramObjectARB, return) - - glUseProgramObjectARB(0); -} - -bool GLProgram::hasParameter(const QString& name) -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::hasParameter", glGetUniformLocationARB, return false) - - if (!failed()) { - QByteArray asciiName = name.toAscii(); - return -1 != glGetUniformLocationARB(m_program, asciiName.data()); - } - return false; -} - -void GLProgram::setInt(const QString& name, int value) -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::setInt", glGetUniformLocationARB && glUniform1iARB, return) - - if (!failed()) { - QByteArray asciiName = name.toAscii(); - int loc = glGetUniformLocationARB(m_program, asciiName.data()); - glUniform1iARB(loc, value); - } -} - -void GLProgram::setFloat(const QString& name, float value) -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::setFloat", glGetUniformLocationARB && glUniform1fARB, return) - - if (!failed()) { - QByteArray asciiName = name.toAscii(); - int loc = glGetUniformLocationARB(m_program, asciiName.data()); - glUniform1fARB(loc, value); - } -} - -void GLProgram::setColor(const QString& name, QRgb value) -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::setColor", glGetUniformLocationARB && glUniform4fARB, return) - - //qDebug() << "Setting color" << name; - if (!failed()) { - QByteArray asciiName = name.toAscii(); - int loc = glGetUniformLocationARB(m_program, asciiName.data()); - //qDebug() << "Location of" << name << "is" << loc; - QColor color(value); - glUniform4fARB(loc, color.redF(), color.greenF(), color.blueF(), color.alphaF()); - } -} - -void GLProgram::setMatrix(const QString& name, const gfx::Matrix4x4f &mat) -{ - GLSHADERS_ASSERT_OPENGL("GLProgram::setMatrix", glGetUniformLocationARB && glUniformMatrix4fvARB, return) - - if (!failed()) { - QByteArray asciiName = name.toAscii(); - int loc = glGetUniformLocationARB(m_program, asciiName.data()); - //qDebug() << "Location of" << name << "is" << loc; - glUniformMatrix4fvARB(loc, 1, GL_FALSE, mat.bits()); - } -}
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