static bool checkVersion(QOpenGLContext &context, QSurfaceFormat &format)
{
QSurfaceFormat currSurface = context.format();
QPair<int,int> currVersion = currSurface.version();
QPair<int,int> reqVersion = format.version();
if (currVersion.first > reqVersion.first)
return true;
return (currVersion.first == reqVersion.first && currVersion.second >= reqVersion.second);
}
Window::Window()
: QOpenGLWidget()
{
QSurfaceFormat format;
format.setSamples(8);
format.setStencilBufferSize(8);
setFormat(format);
printf("Version Major:%d minor:%d \n",format.version().first, format.version().second);
datachanged = colorchanged = true;
}
void tst_QSurfaceFormat::versionCheck()
{
QFETCH( int, formatMajor );
QFETCH( int, formatMinor );
QFETCH( int, compareMajor );
QFETCH( int, compareMinor );
QFETCH( bool, expected );
QSurfaceFormat format;
format.setMinorVersion(formatMinor);
format.setMajorVersion(formatMajor);
QCOMPARE(format.version() >= qMakePair(compareMajor, compareMinor), expected);
format.setVersion(formatMajor, formatMinor);
QCOMPARE(format.version() >= qMakePair(compareMajor, compareMinor), expected);
}
bool QOpenGLTextureBlitter::create()
{
QOpenGLContext *currentContext = QOpenGLContext::currentContext();
if (!currentContext)
return false;
Q_D(QOpenGLTextureBlitter);
d->vao->create();
d->vao->bind();
if (d->program)
return true;
d->program.reset(new QOpenGLShaderProgram());
QSurfaceFormat format = currentContext->format();
if (format.profile() == QSurfaceFormat::CoreProfile && format.version() >= qMakePair(3,2)) {
d->program->addShaderFromSourceCode(QOpenGLShader::Vertex, vertex_shader150);
d->program->addShaderFromSourceCode(QOpenGLShader::Fragment, fragment_shader150);
} else {
d->program->addShaderFromSourceCode(QOpenGLShader::Vertex, vertex_shader);
d->program->addShaderFromSourceCode(QOpenGLShader::Fragment, fragment_shader);
}
d->program->link();
if (!d->program->isLinked()) {
qWarning() << Q_FUNC_INFO << "Could not link shader program:\n" << d->program->log();
return false;
}
d->program->bind();
d->vertexBuffer.create();
d->vertexBuffer.bind();
d->vertexBuffer.allocate(vertex_buffer_data, sizeof(vertex_buffer_data));
d->vertexBuffer.release();
d->textureBuffer.create();
d->textureBuffer.bind();
d->textureBuffer.allocate(texture_buffer_data, sizeof(texture_buffer_data));
d->textureBuffer.release();
d->vertexCoordAttribPos = d->program->attributeLocation("vertexCoord");
d->vertexTransformUniformPos = d->program->uniformLocation("vertexTransform");
d->textureCoordAttribPos = d->program->attributeLocation("textureCoord");
d->textureTransformUniformPos = d->program->uniformLocation("textureTransform");
d->swizzleUniformPos = d->program->uniformLocation("swizzle");
d->program->setUniformValue(d->swizzleUniformPos,false);
d->vao->release();
return true;
}
QtOpenGLWindowBase::QtOpenGLWindowBase(const QSurfaceFormat & format)
: m_context(new QOpenGLContext)
, m_initialized(false)
, m_updatePending(false)
{
QSurfaceFormat f(format);
f.setRenderableType(QSurfaceFormat::OpenGL);
setSurfaceType(OpenGLSurface);
create();
if (f.version().first < 3)
{
m_context->setFormat(f);
if (!m_context->create()) {
qDebug() << "Could not create intermediate OpenGL context.";
QApplication::quit();
} else {
QSurfaceFormat intermediateFormat = m_context->format();
qDebug().nospace() << "Created intermediate OpenGL context " << intermediateFormat.version().first << "." << intermediateFormat.version().second;
if ((intermediateFormat.version().first == 3 && intermediateFormat.version().second == 0) || intermediateFormat.version().first < 3)
{
f.setMajorVersion(3);
f.setMinorVersion(2);
f.setProfile(QSurfaceFormat::CoreProfile);
}
}
}
m_context->setFormat(f);
if (!m_context->create()) {
qDebug() << "Could not create OpenGL context.";
QApplication::quit();
} else {
qDebug().nospace() << "Created OpenGL context " << m_context->format().version().first << "." << m_context->format().version().second;
}
}
void NcRenderingLayer::init(NcMapView *view)
{
// shaders
QSurfaceFormat glf = QSurfaceFormat::defaultFormat();
qDebug()<<"Glversion ="<<glf.version();
this->shader = new QOpenGLShaderProgram();
this->shader->addShaderFromSourceFile(QOpenGLShader::Vertex, ":shaders/simple.vert");
this->shader->addShaderFromSourceFile(QOpenGLShader::Fragment, ":shaders/color.frag");
this->shader->link();
this->rect_shader = new QOpenGLShaderProgram();
this->rect_shader->addShaderFromSourceFile(QOpenGLShader::Vertex, ":shaders/simple.vert");
this->rect_shader->addShaderFromSourceFile(QOpenGLShader::Fragment, ":shaders/rect_color.frag");
this->rect_shader->link();
glGenVertexArrays(1, &this->vao);
glGenBuffers(1, &this->vbo);
glGenBuffers(1, &this->colorbuffer);
// QPointF origin = QPointF(0,0);//view->getOrigin();
// QPointF wTopRight = view->cam()->geo2world(view->getGeoBounds().bottomLeft()) - origin;
// QPointF wBottomRight = view->cam()->geo2world(view->getGeoBounds().bottomRight()) - origin;
// QPointF wTopLeft = view->cam()->geo2world(view->getGeoBounds().topLeft()) - origin;
// QPointF wBottomLeft = view->cam()->geo2world(view->getGeoBounds().topRight()) - origin;
// QPointF wTopLeft = QVector3DD(253522375.1, 432502876, -9.968698493).toPointF() - origin;
// QPointF wBottomLeft = QVector3DD(253522375.1, 432234063.2, -9.968698493).toPointF() - origin;
// QPointF wTopRight = QVector3DD(253880792.2, 432502876, -9.968698493).toPointF() - origin;
// QPointF wBottomRight = QVector3DD(253880792.2, 432234063.2, -9.968698493).toPointF() - origin;
// qDebug() << wBottomLeft << wBottomRight << wTopLeft << wTopRight;
float z = 0;
float points[] = {
// wBottomLeft.x(),-wBottomLeft.y(), z,
// 0, 0, z,
// wBottomRight.x(),-wBottomRight.y(), z,
// wTopRight.x(), -wTopRight.y(), z,
// wBottomLeft.x(),-wBottomLeft.y(), z,
// wTopRight.x(), -wTopRight.y(), z,
// wTopLeft.x(), -wTopLeft.y(), z
// 0.0f,1.0f, z,
// 1.0f,1.0f, z,
// 1.0f,0.0f, z,
// 0.0f,1.0f, z,
// 1.0f,0.0f, z,
// 0.0f,0.0f, z
0.0, 0.0, 0.0,
1.0, 0.0, 0.0,
0.0, 1.0, 0.0,
1.0, 0.0, 0.0,
1.0, 1.0, 0.0,
0.0, 1.0, 0.0
};
float colors[] = {
1,0,0,
0,0,1,
1,0,0,
1,0,0,
1,0,1,
1,0,0
};
glBindBuffer(GL_ARRAY_BUFFER, this->vbo);
glBufferData(GL_ARRAY_BUFFER, sizeof(points), points, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, this->colorbuffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(colors), colors, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
// texture
createTexImage2D(view->getWidth(), view->getHeight(), GL_R32F, GL_RED, GL_FLOAT, &this->tex, (void*)view->getData().data());
// this->rectangle(0.2,0.2,0.5,0.5);
}
