QOpenGLFramebufferObject::QOpenGLFramebufferObject(const QSize &size, const QOpenGLFramebufferObjectFormat &format)
: d_ptr(new QOpenGLFramebufferObjectPrivate)
{
Q_D(QOpenGLFramebufferObject);
d->init(this, size, format.attachment(), format.textureTarget(), format.internalTextureFormat(),
format.samples(), format.mipmap());
}
QOpenGLFramebufferObject *createFramebufferObject(const QSize &size)
{
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
format.setSamples(4);
return new QOpenGLFramebufferObject(size, format);
}
QOpenGLFramebufferObject::QOpenGLFramebufferObject(int width, int height, const QOpenGLFramebufferObjectFormat &format)
: d_ptr(new QOpenGLFramebufferObjectPrivate)
{
Q_D(QOpenGLFramebufferObject);
d->init(this, QSize(width, height), format.attachment(), format.textureTarget(),
format.internalTextureFormat(), format.samples(), format.mipmap());
}
void tst_QOpenGL::fboSimpleRendering()
{
QFETCH(int, surfaceClass);
QScopedPointer<QSurface> surface(createSurface(surfaceClass));
QOpenGLContext ctx;
ctx.create();
ctx.makeCurrent(surface.data());
if (!QOpenGLFramebufferObject::hasOpenGLFramebufferObjects())
QSKIP("QOpenGLFramebufferObject not supported on this platform");
// No multisample with combined depth/stencil attachment:
QOpenGLFramebufferObjectFormat fboFormat;
fboFormat.setAttachment(QOpenGLFramebufferObject::NoAttachment);
QOpenGLFramebufferObject *fbo = new QOpenGLFramebufferObject(200, 100, fboFormat);
fbo->bind();
glClearColor(1.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
glFinish();
QImage fb = fbo->toImage().convertToFormat(QImage::Format_RGB32);
QImage reference(fb.size(), QImage::Format_RGB32);
reference.fill(0xffff0000);
QFUZZY_COMPARE_IMAGES(fb, reference);
delete fbo;
}
void RenderSurface::render(QPainter *painter)
{
Q_UNUSED(painter);
QOpenGLFramebufferObjectFormat fboFormat;
fboFormat.setSamples(1);
fboFormat.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
const QRect drawRect(0, 0, m_outWidth, m_outHeight);
const QSize drawRectSize = drawRect.size();
QOpenGLFramebufferObject fbo(drawRectSize, fboFormat);
fbo.bind();
glViewport(0, 0, m_outWidth, m_outHeight);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glEnable(GL_BLEND);
glBlendFuncSeparate(GL_ONE, GL_ZERO, GL_ZERO, GL_ONE);
m_program->bind();
int texCount = 0;
for (size_t i = 0; i < sp.size(); ++i) {
if (sp[i].bind == ShaderParameter::BindTextureSampler) {
textures[sp[i].name].obj->bind(texCount);
m_program->setUniformValue(sp[i].name.c_str(), texCount);
texCount++;
} else if (sp[i].bind == ShaderParameter::BindTextureResolution) {
const QImage& image = textures[sp[i].texture].image;
m_program->setUniformValue(sp[i].name.c_str(), QVector2D(image.width(),image.height()));
} else if (sp[i].bind == ShaderParameter::BindGlobalTime) {
m_program->setUniformValue(sp[i].name.c_str(), m_globalTime);
} else if (sp[i].bind == ShaderParameter::BindOutputResolution) {
m_program->setUniformValue(sp[i].name.c_str(), QVector2D(m_outWidth,m_outHeight));
}
}
GLfloat vertices[] = {
-1.0f, -1.0f, 0.0f,
1.0f, -1.0f, 0.0f,
-1.0f, 1.0f, 0.0f,
1.0f, 1.0f, 0.0f
};
glVertexAttribPointer(m_posAttr, 3, GL_FLOAT, GL_FALSE, 0, vertices);
glEnableVertexAttribArray(0);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisableVertexAttribArray(0);
m_program->release();
imageFrame = fbo.toImage();
}
void TApplication::initializeGL() {
// Init shaders
if (!Shader.addShaderFromSourceFile(QGLShader::Vertex, "vert.glsl")) {
qFatal("failed to load shader vert.glsl");
}
if (!Shader.addShaderFromSourceFile(QGLShader::Fragment, "frag.glsl")) {
qFatal("failed to load shader frag.glsl");
}
if (!Shader.link()) {
qFatal("failed to link shader planet");
}
if (!Shader.bind()) {
qFatal("failed to bind shader");
}
// Init framebuffers
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
format.setSamples(8);
Fbo.reset(new QOpenGLFramebufferObject(WINDOW_WIDTH, WINDOW_HEIGHT, format));
QOpenGLFramebufferObjectFormat format1;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
Fbo1.reset(new QOpenGLFramebufferObject(WINDOW_WIDTH, WINDOW_HEIGHT, format1));
// Load model and textures
Obj = LoadJsonModel("model.json");
ObjectSize = Obj.size();
VertexBuff.reset(new QOpenGLBuffer(QOpenGLBuffer::VertexBuffer));
VertexBuff->create();
VertexBuff->bind();
VertexBuff->setUsagePattern(QOpenGLBuffer::StaticDraw);
VertexBuff->allocate(Obj.data(), Obj.size() * sizeof(TVertex));
VertexBuff->release();
Texture.reset(new QOpenGLTexture(QImage("diffuse.jpg")));
Texture->bind();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
Texture->release();
NormalMap.reset(new QOpenGLTexture(QImage("normal.jpg")));
NormalMap->bind();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
NormalMap->release();
// Initial angles
AngleX = 0;
AngleY = 0;
AngleZ = 0;
Paused = false;
}
QOpenGLFramebufferObject* QQuickMapboxGLRenderer::createFramebufferObject(const QSize &size)
{
m_map->resize(size);
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
return new QOpenGLFramebufferObject(size, format);
}
QOpenGLFramebufferObject* COglRenderer::createFramebufferObject(const QSize &size)
{
// create opengl FBO
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
format.setSamples(4);
m_oglFBO = new QOpenGLFramebufferObject(size, format);
// return opengl FBO
return m_oglFBO;
}
void CombinedTexture::create()
{
if (m_framebuffer)
delete m_framebuffer;
QOpenGLFramebufferObjectFormat format;
format.setMipmap(true);
m_framebuffer = new QOpenGLFramebufferObject(m_width, m_height, format);
m_framebuffer->bind();
glViewport(0, 0, m_width, m_height);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
glEnable(GL_ALPHA_TEST);
for (int i = 0; i < m_textures.size(); i++) {
Texture *texture = m_textures.at(i).first;
float *position = m_textures.at(i).second;
texture->bind();
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(position[0], position[1], 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(position[2], position[1], 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(position[2], position[3], 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(position[0], position[3], 0.0f);
glEnd();
}
m_framebuffer->release();
glBindTexture(GL_TEXTURE_2D, m_framebuffer->texture());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
QOpenGLFunctions gl(QOpenGLContext::currentContext());
gl.initializeOpenGLFunctions();
gl.glGenerateMipmap(GL_TEXTURE_2D);
m_created = true;
}
std::unique_ptr<QOpenGLFramebufferObject>
_createMultisampledFBO( const QSize& size )
{
QOpenGLFramebufferObjectFormat format;
format.setAttachment( QOpenGLFramebufferObject::CombinedDepthStencil );
format.setSamples( MULTI_SAMPLE_ANTI_ALIASING_SAMPLES );
auto fbo = make_unique<QOpenGLFramebufferObject>( size, format );
fbo->bind();
auto gl = QOpenGLContext::currentContext()->functions();
gl->glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
gl->glClear( GL_COLOR_BUFFER_BIT );
fbo->release();
return fbo;
}
void Renderer::render() {
if (context == 0)
initialize();
if (newSize != size || reset) {
frame = 0;
reset = false;
size = newSize;
context->makeCurrent(this);
glViewport(0, 0, size.width(), size.height());
QOpenGLFramebufferObjectFormat fboFormat;
fboFormat.setInternalTextureFormat(GL_RGB32F);
delete backBuffer;
backBuffer = new QOpenGLFramebufferObject(size, fboFormat);
delete frameBuffer;
frameBuffer = new QOpenGLFramebufferObject(size, fboFormat);
context->doneCurrent();
}
if (backBuffer == 0 || frameBuffer == 0 || shader == 0)
return;
context->makeCurrent(this);
if (!shader->isCompiled())
shader->compile();
GLfloat elapsed = (GLfloat)time.elapsed() / 1000.f;
draw(shader->getMainProgram(), backBuffer, elapsed);
if (shader->usePostProcessing())
draw(shader->getPostProgram(), frameBuffer, elapsed);
emit updatePixmap((shader->usePostProcessing() ? frameBuffer : backBuffer)->toImage());
frame++;
context->doneCurrent();
}
// NOTE: This tests that CombinedDepthStencil attachment works by assuming the
// GL2 engine is being used and is implemented the same way as it was when
// this autotest was written. If this is not the case, there may be some
// false-positives: I.e. The test passes when either the depth or stencil
// buffer is actually missing. But that's probably ok anyway.
void tst_QOpenGL::fboRendering()
{
#if defined(Q_OS_LINUX) && defined(Q_CC_GNU) && !defined(__x86_64__)
QSKIP("QTBUG-22617");
#endif
QFETCH(int, surfaceClass);
QScopedPointer<QSurface> surface(createSurface(surfaceClass));
QOpenGLContext ctx;
QVERIFY(ctx.create());
QVERIFY(ctx.makeCurrent(surface.data()));
if (!QOpenGLFramebufferObject::hasOpenGLFramebufferObjects())
QSKIP("QOpenGLFramebufferObject not supported on this platform");
// No multisample with combined depth/stencil attachment:
QOpenGLFramebufferObjectFormat fboFormat;
fboFormat.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
// Uncomplicate things by using NPOT:
const QSize size(256, 128);
QOpenGLFramebufferObject fbo(size, fboFormat);
if (fbo.attachment() != QOpenGLFramebufferObject::CombinedDepthStencil)
QSKIP("FBOs missing combined depth~stencil support");
QVERIFY(fbo.bind());
QPainter fboPainter;
QOpenGLPaintDevice device(fbo.width(), fbo.height());
bool painterBegun = fboPainter.begin(&device);
QVERIFY(painterBegun);
qt_opengl_draw_test_pattern(&fboPainter, fbo.width(), fbo.height());
fboPainter.end();
const QImage fb = fbo.toImage().convertToFormat(QImage::Format_RGB32);
QCOMPARE(fb.size(), size);
qt_opengl_check_test_pattern(fb);
}
void QQuickContext2DFBOTile::setRect(const QRect& r)
{
if (m_rect == r)
return;
m_rect = r;
m_dirty = true;
if (!m_fbo || m_fbo->size() != r.size()) {
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
format.setInternalTextureFormat(GL_RGBA);
format.setMipmap(false);
if (m_painter.isActive())
m_painter.end();
delete m_fbo;
m_fbo = new QOpenGLFramebufferObject(r.size(), format);
}
}
bool QGLPixelBuffer::makeCurrent()
{
Q_D(QGLPixelBuffer);
if (d->invalid)
return false;
d->qctx->makeCurrent();
if (!d->fbo) {
QOpenGLFramebufferObjectFormat format;
if (d->req_format.stencil())
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
else if (d->req_format.depth())
format.setAttachment(QOpenGLFramebufferObject::Depth);
if (d->req_format.sampleBuffers())
format.setSamples(d->req_format.samples());
d->fbo = new QOpenGLFramebufferObject(d->req_size, format);
d->fbo->bind();
}
return true;
}
void tst_QOpenGL::fboTextureOwnership()
{
QFETCH(int, surfaceClass);
QScopedPointer<QSurface> surface(createSurface(surfaceClass));
QOpenGLContext ctx;
QVERIFY(ctx.create());
ctx.makeCurrent(surface.data());
if (!QOpenGLFramebufferObject::hasOpenGLFramebufferObjects())
QSKIP("QOpenGLFramebufferObject not supported on this platform");
QOpenGLFramebufferObjectFormat fboFormat;
fboFormat.setAttachment(QOpenGLFramebufferObject::NoAttachment);
QOpenGLFramebufferObject *fbo = new QOpenGLFramebufferObject(200, 100, fboFormat);
QVERIFY(fbo->texture() != 0);
fbo->bind();
// pull out the texture
GLuint texture = fbo->takeTexture();
QVERIFY(texture != 0);
QVERIFY(fbo->texture() == 0);
// verify that the next bind() creates a new texture
fbo->bind();
QVERIFY(fbo->texture() != 0 && fbo->texture() != texture);
glClearColor(1.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
glFinish();
QImage fb = fbo->toImage().convertToFormat(QImage::Format_RGB32);
QImage reference(fb.size(), QImage::Format_RGB32);
reference.fill(0xffff0000);
QFUZZY_COMPARE_IMAGES(fb, reference);
glDeleteTextures(1, &texture);
delete fbo;
}
bool QGLPixelBuffer::makeCurrent()
{
Q_D(QGLPixelBuffer);
if (d->invalid)
return false;
d->qctx->makeCurrent();
if (!d->fbo) {
QOpenGLFramebufferObjectFormat format;
if (d->req_format.stencil())
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
else if (d->req_format.depth())
format.setAttachment(QOpenGLFramebufferObject::Depth);
if (d->req_format.sampleBuffers())
format.setSamples(d->req_format.samples());
d->fbo = new QOpenGLFramebufferObject(d->req_size, format);
d->fbo->bind();
d->glDevice.setFbo(d->fbo->handle());
QOpenGLContext::currentContext()->functions()->glViewport(0, 0, d->req_size.width(), d->req_size.height());
}
return true;
}
static PyObject *meth_QOpenGLFramebufferObjectFormat_setMipmap(PyObject *sipSelf, PyObject *sipArgs)
{
PyObject *sipParseErr = NULL;
{
bool a0;
QOpenGLFramebufferObjectFormat *sipCpp;
if (sipParseArgs(&sipParseErr, sipArgs, "Bb", &sipSelf, sipType_QOpenGLFramebufferObjectFormat, &sipCpp, &a0))
{
sipCpp->setMipmap(a0);
Py_INCREF(Py_None);
return Py_None;
}
}
/* Raise an exception if the arguments couldn't be parsed. */
sipNoMethod(sipParseErr, sipName_QOpenGLFramebufferObjectFormat, sipName_setMipmap, doc_QOpenGLFramebufferObjectFormat_setMipmap);
return NULL;
}
void GLImageProcessor::initialize()
{
initializeOpenGLFunctions();
texture.reset(new QOpenGLTexture(image.mirrored()));
texture->setWrapMode(QOpenGLTexture::WrapMode::ClampToEdge);
texture->setMinificationFilter(QOpenGLTexture::LinearMipMapLinear);
texture->setMagnificationFilter(QOpenGLTexture::Linear);
program.reset(buildProgram());
program->release();
plotProgram.reset(buildPassthorughProgram());
plotProgram->release();
vao.create();
vao.bind();
vbo.reset(buildQuadTextured());
vao.release();
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
renderFbo.reset(new QOpenGLFramebufferObject(image.size(), format));
}
void QSGPainterNode::updateRenderTarget()
{
if (!m_extensionsChecked) {
const QSet<QByteArray> extensions = m_context->openglContext()->extensions();
m_multisamplingSupported = extensions.contains(QByteArrayLiteral("GL_EXT_framebuffer_multisample"))
&& extensions.contains(QByteArrayLiteral("GL_EXT_framebuffer_blit"));
m_extensionsChecked = true;
}
m_dirtyContents = true;
QQuickPaintedItem::RenderTarget oldTarget = m_actualRenderTarget;
if (m_preferredRenderTarget == QQuickPaintedItem::Image) {
m_actualRenderTarget = QQuickPaintedItem::Image;
} else {
if (!m_multisamplingSupported && m_smoothPainting)
m_actualRenderTarget = QQuickPaintedItem::Image;
else
m_actualRenderTarget = m_preferredRenderTarget;
}
if (oldTarget != m_actualRenderTarget) {
m_image = QImage();
delete m_fbo;
delete m_multisampledFbo;
delete m_gl_device;
m_fbo = m_multisampledFbo = 0;
m_gl_device = 0;
}
if (m_actualRenderTarget == QQuickPaintedItem::FramebufferObject ||
m_actualRenderTarget == QQuickPaintedItem::InvertedYFramebufferObject) {
const QOpenGLContext *ctx = m_context->openglContext();
if (m_fbo && !m_dirtyGeometry && (!ctx->format().samples() || !m_multisamplingSupported))
return;
if (m_fboSize.isEmpty())
updateFBOSize();
delete m_fbo;
delete m_multisampledFbo;
m_fbo = m_multisampledFbo = 0;
if (m_gl_device)
m_gl_device->setSize(m_fboSize);
if (m_smoothPainting && ctx->format().samples() && m_multisamplingSupported) {
{
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
format.setSamples(8);
m_multisampledFbo = new QOpenGLFramebufferObject(m_fboSize, format);
}
{
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::NoAttachment);
m_fbo = new QOpenGLFramebufferObject(m_fboSize, format);
}
} else {
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
m_fbo = new QOpenGLFramebufferObject(m_fboSize, format);
}
} else {
if (!m_image.isNull() && !m_dirtyGeometry)
return;
m_image = QImage(m_size, QImage::Format_ARGB32_Premultiplied);
m_image.fill(Qt::transparent);
}
QSGPainterTexture *texture = new QSGPainterTexture;
if (m_actualRenderTarget == QQuickPaintedItem::Image) {
texture->setOwnsTexture(true);
texture->setTextureSize(m_size);
} else {
texture->setTextureId(m_fbo->texture());
texture->setOwnsTexture(false);
texture->setTextureSize(m_fboSize);
}
if (m_texture)
delete m_texture;
texture->setTextureSize(m_size);
m_texture = texture;
}
void ExploreLiveView::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget * widget)
{
if(!isReady) return;
prePaint(painter);
postPaint(painter);
auto glwidget = (Viewer*)widget;
if (glwidget && meshes.size())
{
QRectF parentRect = parentItem()->sceneBoundingRect();
if (isCacheImage && cachedImage.isNull())
{
QOpenGLContext context;
context.setShareContext(glwidget->context());
context.setFormat(glwidget->format());
context.create();
QOffscreenSurface m_offscreenSurface;
m_offscreenSurface.setFormat(context.format());
m_offscreenSurface.create();
context.makeCurrent(&m_offscreenSurface);
QOpenGLFramebufferObjectFormat fboformat;
fboformat.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
QOpenGLFramebufferObject renderFbo(cacheImageSize*1.5, cacheImageSize, fboformat);
renderFbo.bind();
glwidget->glEnable(GL_DEPTH_TEST);
glwidget->glEnable(GL_BLEND);
glwidget->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glwidget->glCullFace(GL_BACK);
glwidget->glClearColor(0,0,0,0);
glwidget->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glwidget->glViewport(0, 0, cacheImageSize*1.5, cacheImageSize);
// XXX Fix
// glwidget->glPointSize(10);
// Draw aux meshes
for (auto mesh : meshes)
{
if (mesh.isPoints)
glwidget->drawOrientedPoints(mesh.points, mesh.normals, mesh.color, glwidget->pvm);
else
glwidget->drawTriangles(mesh.color, mesh.points, mesh.normals, glwidget->pvm);
}
glwidget->glDisable(GL_DEPTH_TEST);
glwidget->glFlush();
renderFbo.release();
cachedImage = renderFbo.toImage();
isReady = true;
// Thanks for sharing!
glwidget->makeCurrent();
}
// Draw as image
if(isCacheImage)
{
int w = shapeRect.width();
painter->drawImage(w * -0.5, w * -0.5, cachedImage.scaledToWidth(w));
}
if(!isCacheImage)
{
auto r = shapeRect;
// scale view
double s = 1.5;
r.setWidth(r.width() * s);
r.setHeight(r.height() * s);
r.moveCenter(this->mapToScene(boundingRect().center()));
painter->beginNativePainting();
auto v = scene()->views().first();
QPoint viewDelta = v->mapFromScene(r.topLeft());
if (viewDelta.manhattanLength() > 5) r.moveTopLeft(viewDelta);
auto camera = ExploreProcess::defaultCamera(document->extent().length());
glwidget->eyePos = camera.first;
glwidget->pvm = camera.second;
glwidget->glViewport(r.left(), v->height() - r.height() - r.top(), r.width(), r.height());
// Clipping OpenGL
glwidget->glEnable(GL_SCISSOR_TEST);
glwidget->glScissor(parentRect.x(), v->height() - parentRect.height() - parentRect.top(), parentRect.width(), parentRect.height());
glwidget->glClear(GL_DEPTH_BUFFER_BIT);
// FIX XXX
// glwidget->glPointSize(2);
// Draw aux meshes
for (auto mesh : meshes)
{
if (mesh.isPoints)
glwidget->drawOrientedPoints(mesh.points, mesh.normals, mesh.color, glwidget->pvm);
else
glwidget->drawTriangles(mesh.color, mesh.points, mesh.normals, glwidget->pvm);
}
glwidget->glDisable(GL_SCISSOR_TEST);
painter->endNativePainting();
}
}
}
int indexAt( /*GLuint *buffer,*/ NifModel * model, Scene * scene, QList<DrawFunc> drawFunc, int cycle, const QPoint & pos, int & furn )
{
Q_UNUSED( model ); Q_UNUSED( cycle );
// Color Key O(1) selection
// Open GL 3.0 says glRenderMode is deprecated
// ATI OpenGL API implementation of GL_SELECT corrupts NifSkope memory
//
// Create FBO for sharp edges and no shading.
// Texturing, blending, dithering, lighting and smooth shading should be disabled.
// The FBO can be used for the drawing operations to keep the drawing operations invisible to the user.
GLint viewport[4];
glGetIntegerv( GL_VIEWPORT, viewport );
// Create new FBO with multisampling disabled
QOpenGLFramebufferObjectFormat fboFmt;
fboFmt.setTextureTarget( GL_TEXTURE_2D );
fboFmt.setInternalTextureFormat( GL_RGB32F_ARB );
fboFmt.setAttachment( QOpenGLFramebufferObject::Attachment::CombinedDepthStencil );
QOpenGLFramebufferObject fbo( viewport[2], viewport[3], fboFmt );
fbo.bind();
glEnable( GL_LIGHTING );
glDisable( GL_MULTISAMPLE );
glDisable( GL_MULTISAMPLE_ARB );
glDisable( GL_LINE_SMOOTH );
glDisable( GL_POINT_SMOOTH );
glDisable( GL_POLYGON_SMOOTH );
glDisable( GL_TEXTURE_1D );
glDisable( GL_TEXTURE_2D );
glDisable( GL_TEXTURE_3D );
glDisable( GL_BLEND );
glDisable( GL_DITHER );
glDisable( GL_FOG );
glDisable( GL_LIGHTING );
glShadeModel( GL_FLAT );
glEnable( GL_DEPTH_TEST );
glDepthFunc( GL_LEQUAL );
glClearColor( 0, 0, 0, 1 );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
// Rasterize the scene
Node::SELECTING = 1;
for ( DrawFunc df : drawFunc ) {
(scene->*df)();
}
Node::SELECTING = 0;
fbo.release();
QImage img( fbo.toImage() );
QColor pixel = img.pixel( pos );
#ifndef QT_NO_DEBUG
img.save( "fbo.png" );
#endif
// Encode RGB to Int
int a = 0;
a |= pixel.red() << 0;
a |= pixel.green() << 8;
a |= pixel.blue() << 16;
// Decode:
// R = (id & 0x000000FF) >> 0
// G = (id & 0x0000FF00) >> 8
// B = (id & 0x00FF0000) >> 16
int choose = COLORKEY2ID( a );
// Pick BSFurnitureMarker
if ( choose > 0 ) {
auto furnBlock = model->getBlock( model->index( 3, 0, model->getBlock( choose & 0x0ffff ) ), "BSFurnitureMarker" );
if ( furnBlock.isValid() ) {
furn = choose >> 16;
choose &= 0x0ffff;
}
QOpenGLFramebufferObject *createFramebufferObject(const QSize &size) override {
m_heightMapRenderer.setAspectRatio(size.width(), size.height());
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::Depth);
return new QOpenGLFramebufferObject(size, format);
}
void GLWidget::paintGL()
{
QOpenGLFunctions* f = openglContext()->functions();
int width = this->width() * devicePixelRatio();
int height = this->height() * devicePixelRatio();
glDisable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
glViewport(0, 0, width, height);
check_error(f);
QColor color(KdenliveSettings::window_background()); //= QPalette().color(QPalette::Window);
glClearColor(color.redF(), color.greenF(), color.blueF(), color.alphaF());
glClear(GL_COLOR_BUFFER_BIT);
check_error(f);
if (!m_texture[0]) return;
// Bind textures.
for (int i = 0; i < 3; ++i) {
if (m_texture[i]) {
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(GL_TEXTURE_2D, m_texture[i]);
check_error(f);
}
}
// Init shader program.
m_shader->bind();
if (m_glslManager) {
m_shader->setUniformValue(m_textureLocation[0], 0);
} else {
m_shader->setUniformValue(m_textureLocation[0], 0);
m_shader->setUniformValue(m_textureLocation[1], 1);
m_shader->setUniformValue(m_textureLocation[2], 2);
m_shader->setUniformValue(m_colorspaceLocation, m_monitorProfile->colorspace());
}
check_error(f);
// Setup an orthographic projection.
QMatrix4x4 projection;
projection.scale(2.0f / width, 2.0f / height);
m_shader->setUniformValue(m_projectionLocation, projection);
check_error(f);
// Set model view.
QMatrix4x4 modelView;
if (m_zoom != 1.0) {
if (offset().x() || offset().y())
modelView.translate(-offset().x() * devicePixelRatio(),
offset().y() * devicePixelRatio());
modelView.scale(zoom(), zoom());
}
m_shader->setUniformValue(m_modelViewLocation, modelView);
check_error(f);
// Provide vertices of triangle strip.
QVector<QVector2D> vertices;
width = m_rect.width() * devicePixelRatio();
height = m_rect.height() * devicePixelRatio();
vertices << QVector2D(float(-width)/2.0f, float(-height)/2.0f);
vertices << QVector2D(float(-width)/2.0f, float( height)/2.0f);
vertices << QVector2D(float( width)/2.0f, float(-height)/2.0f);
vertices << QVector2D(float( width)/2.0f, float( height)/2.0f);
m_shader->enableAttributeArray(m_vertexLocation);
check_error(f);
m_shader->setAttributeArray(m_vertexLocation, vertices.constData());
check_error(f);
// Provide texture coordinates.
QVector<QVector2D> texCoord;
texCoord << QVector2D(0.0f, 1.0f);
texCoord << QVector2D(0.0f, 0.0f);
texCoord << QVector2D(1.0f, 1.0f);
texCoord << QVector2D(1.0f, 0.0f);
m_shader->enableAttributeArray(m_texCoordLocation);
check_error(f);
m_shader->setAttributeArray(m_texCoordLocation, texCoord.constData());
check_error(f);
// Render
glDrawArrays(GL_TRIANGLE_STRIP, 0, vertices.size());
check_error(f);
// Render RGB frame for analysis
if (sendFrameForAnalysis) {
if (!m_fbo || m_fbo->size() != QSize(width, height)) {
delete m_fbo;
QOpenGLFramebufferObjectFormat f;
f.setSamples(0);
f.setInternalTextureFormat(GL_RGB); //GL_RGBA32F); // which one is the fastest ?
m_fbo = new QOpenGLFramebufferObject(width, height, f); //GL_TEXTURE_2D);
}
m_fbo->bind();
glViewport(0, 0, width, height);
projection.scale((double) this->width() / width, (double) this->height() / height);
m_shader->setUniformValue(m_projectionLocation, projection);
glDrawArrays(GL_TRIANGLE_STRIP, 0, vertices.size());
check_error(f);
m_fbo->release();
emit analyseFrame(m_fbo->toImage());
}
// Cleanup
m_shader->disableAttributeArray(m_vertexLocation);
m_shader->disableAttributeArray(m_texCoordLocation);
m_shader->release();
for (int i = 0; i < 3; ++i) {
if (m_texture[i]) {
glActiveTexture(GL_TEXTURE0 + i);
glBindTexture(GL_TEXTURE_2D, 0);
check_error(f);
}
}
glActiveTexture(GL_TEXTURE0);
check_error(f);
}
int main(int argc, char **argv)
{
#ifdef CONSOLE_APPLICATION
QApplication app(argc, argv, QApplication::Tty);
#else
QApplication app(argc, argv);
#endif
#ifdef DO_QWS_DEBUGGING
qt_show_painter_debug_output = false;
#endif
DeviceType type = WidgetType;
bool checkers_background = true;
QImage::Format imageFormat = QImage::Format_ARGB32_Premultiplied;
QLocale::setDefault(QLocale::c());
QStringList files;
bool interactive = false;
bool printdlg = false;
bool highres = false;
bool show_cmp = false;
int width = 800, height = 800;
int scaledWidth = width, scaledHeight = height;
qreal scalefactor = 1.0;
bool verboseMode = false;
#ifndef QT_NO_OPENGL
QGLFormat f = QGLFormat::defaultFormat();
f.setSampleBuffers(true);
f.setStencil(true);
f.setAlpha(true);
f.setAlphaBufferSize(8);
QGLFormat::setDefaultFormat(f);
#endif
char *arg;
for (int i=1; i<argc; ++i) {
arg = argv[i];
if (*arg == '-') {
QString option = QString(arg + 1).toLower();
if (option == "widget")
type = WidgetType;
else if (option == "bitmap")
type = BitmapType;
else if (option == "pixmap")
type = PixmapType;
else if (option == "image")
type = ImageType;
else if (option == "imageformat") {
Q_ASSERT_X(i + 1 < argc, "main", "-imageformat must be followed by a value");
QString format = QString(argv[++i]).toLower();
imageFormat = QImage::Format_Invalid;
static const int formatCount =
sizeof(imageFormats) / sizeof(imageFormats[0]);
for (int ff = 0; ff < formatCount; ++ff) {
if (QLatin1String(imageFormats[ff].name) == format) {
imageFormat = imageFormats[ff].format;
break;
}
}
if (imageFormat == QImage::Format_Invalid) {
printf("Invalid image format. Available formats are:\n");
for (int ff = 0; ff < formatCount; ++ff)
printf("\t%s\n", imageFormats[ff].name);
return -1;
}
} else if (option == "imagemono")
type = ImageMonoType;
else if (option == "imagewidget")
type = ImageWidgetType;
#ifndef QT_NO_OPENGL
else if (option == "opengl")
type = OpenGLType;
else if (option == "glbuffer")
type = OpenGLBufferType;
#endif
#ifdef USE_CUSTOM_DEVICE
else if (option == "customdevice")
type = CustomDeviceType;
else if (option == "customwidget")
type = CustomWidgetType;
#endif
else if (option == "pdf")
type = PdfType;
else if (option == "ps")
type = PsType;
else if (option == "picture")
type = PictureType;
else if (option == "printer")
type = PrinterType;
else if (option == "highres") {
type = PrinterType;
highres = true;
} else if (option == "printdialog") {
type = PrinterType;
printdlg = true;
}
else if (option == "grab")
type = GrabType;
else if (option == "i")
interactive = true;
else if (option == "v")
verboseMode = true;
else if (option == "commands") {
displayCommands();
return 0;
} else if (option == "w") {
Q_ASSERT_X(i + 1 < argc, "main", "-w must be followed by a value");
width = atoi(argv[++i]);
} else if (option == "h") {
Q_ASSERT_X(i + 1 < argc, "main", "-h must be followed by a value");
height = atoi(argv[++i]);
} else if (option == "scalefactor") {
Q_ASSERT_X(i + 1 < argc, "main", "-scalefactor must be followed by a value");
scalefactor = atof(argv[++i]);
} else if (option == "cmp") {
show_cmp = true;
} else if (option == "bg-white") {
checkers_background = false;
}
} else {
#if defined (Q_WS_WIN)
QString input = QString::fromLocal8Bit(argv[i]);
if (input.indexOf('*') >= 0) {
QFileInfo info(input);
QDir dir = info.dir();
QFileInfoList infos = dir.entryInfoList(QStringList(info.fileName()));
for (int ii=0; ii<infos.size(); ++ii)
files.append(infos.at(ii).absoluteFilePath());
} else {
files.append(input);
}
#else
files.append(QString(argv[i]));
#endif
}
}
scaledWidth = width * scalefactor;
scaledHeight = height * scalefactor;
PaintCommands pcmd(QStringList(), 800, 800);
pcmd.setVerboseMode(verboseMode);
pcmd.setType(type);
pcmd.setCheckersBackground(checkers_background);
QWidget *activeWidget = 0;
if (interactive) {
runInteractive();
if (!files.isEmpty())
interactive_widget->load(files.at(0));
} else if (files.isEmpty()) {
printHelp();
return 0;
} else {
for (int j=0; j<files.size(); ++j) {
const QString &fileName = files.at(j);
QStringList content;
QFile file(fileName);
QFileInfo fileinfo(file);
if (file.open(QIODevice::ReadOnly)) {
QTextStream textFile(&file);
QString script = textFile.readAll();
content = script.split("\n", QString::SkipEmptyParts);
} else {
printf("failed to read file: '%s'\n", qPrintable(fileinfo.absoluteFilePath()));
continue;
}
pcmd.setContents(content);
if (show_cmp) {
QString pmFile = QString(files.at(j)).replace(".qps", "_qps") + ".png";
qDebug() << pmFile << QFileInfo(pmFile).exists();
QPixmap pixmap(pmFile);
if (!pixmap.isNull()) {
QLabel *label = createLabel();
label->setWindowTitle("VERIFY: " + pmFile);
label->setPixmap(pixmap);
label->show();
}
}
switch (type) {
case WidgetType:
{
OnScreenWidget<QWidget> *qWidget =
new OnScreenWidget<QWidget>(files.at(j));
qWidget->setVerboseMode(verboseMode);
qWidget->setType(type);
qWidget->setCheckersBackground(checkers_background);
qWidget->m_commands = content;
qWidget->resize(width, height);
qWidget->show();
activeWidget = qWidget;
break;
}
case ImageWidgetType:
{
OnScreenWidget<QWidget> *qWidget = new OnScreenWidget<QWidget>(files.at(j));
qWidget->setVerboseMode(verboseMode);
qWidget->setType(type);
qWidget->setCheckersBackground(checkers_background);
qWidget->m_commands = content;
qWidget->resize(width, height);
qWidget->show();
activeWidget = qWidget;
break;
}
#ifndef QT_NO_OPENGL
case OpenGLBufferType:
{
QWindow win;
win.setSurfaceType(QSurface::OpenGLSurface);
win.create();
QOpenGLFramebufferObjectFormat fmt;
fmt.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
fmt.setSamples(4);
QOpenGLContext ctx;
ctx.create();
ctx.makeCurrent(&win);
QOpenGLFramebufferObject fbo(width, height, fmt);
fbo.bind();
QOpenGLPaintDevice pdev(width, height);
QPainter pt(&pdev);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
QImage image = fbo.toImage();
QLabel *label = createLabel();
label->setPixmap(QPixmap::fromImage(image));
label->resize(label->sizeHint());
label->show();
activeWidget = label;
break;
}
case OpenGLType:
{
OnScreenWidget<QGLWidget> *qGLWidget = new OnScreenWidget<QGLWidget>(files.at(j));
qGLWidget->setVerboseMode(verboseMode);
qGLWidget->setType(type);
qGLWidget->setCheckersBackground(checkers_background);
qGLWidget->m_commands = content;
qGLWidget->resize(width, height);
qGLWidget->show();
activeWidget = qGLWidget;
break;
}
#else
case OpenGLType:
case OpenGLBufferType:
{
printf("OpenGL type not supported in this Qt build\n");
break;
}
#endif
#ifdef USE_CUSTOM_DEVICE
case CustomDeviceType:
{
CustomPaintDevice custom(width, height);
QPainter pt;
pt.begin(&custom);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
QImage *img = custom.image();
if (img) {
QLabel *label = createLabel();
label->setPixmap(QPixmap::fromImage(*img));
label->resize(label->sizeHint());
label->show();
activeWidget = label;
img->save("custom_output_pixmap.png", "PNG");
} else {
custom.save("custom_output_pixmap.png", "PNG");
}
break;
}
case CustomWidgetType:
{
OnScreenWidget<CustomWidget> *cWidget = new OnScreenWidget<CustomWidget>;
cWidget->setVerboseMode(verboseMode);
cWidget->setType(type);
cWidget->setCheckersBackground(checkers_background);
cWidget->m_filename = files.at(j);
cWidget->setWindowTitle(fileinfo.filePath());
cWidget->m_commands = content;
cWidget->resize(width, height);
cWidget->show();
activeWidget = cWidget;
break;
}
#endif
case PixmapType:
{
QPixmap pixmap(scaledWidth, scaledHeight);
pixmap.setDevicePixelRatio(scalefactor);
pixmap.fill(Qt::white);
QPainter pt(&pixmap);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
pixmap.save("output_pixmap.png", "PNG");
break;
}
case BitmapType:
{
QBitmap bitmap(scaledWidth, scaledHeight);
bitmap.setDevicePixelRatio(scalefactor);
QPainter pt(&bitmap);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
bitmap.save("output_bitmap.png", "PNG");
QLabel *label = createLabel();
label->setPixmap(bitmap);
label->resize(label->sizeHint());
label->show();
activeWidget = label;
break;
}
case ImageMonoType:
case ImageType:
{
qDebug() << "Creating image";
QImage image(scaledWidth, scaledHeight, type == ImageMonoType
? QImage::Format_MonoLSB
: imageFormat);
image.setDevicePixelRatio(scalefactor);
image.fill(0);
QPainter pt(&image);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
image.convertToFormat(QImage::Format_ARGB32).save("output_image.png", "PNG");
image.setDevicePixelRatio(1.0); // reset scale factor: display "large" image.
#ifndef CONSOLE_APPLICATION
QLabel *label = createLabel();
label->setPixmap(QPixmap::fromImage(image));
label->resize(label->sizeHint());
label->show();
activeWidget = label;
#endif
break;
}
case PictureType:
{
QPicture pic;
QPainter pt(&pic);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
QImage image(width, height, QImage::Format_ARGB32_Premultiplied);
image.fill(0);
pt.begin(&image);
pt.drawPicture(0, 0, pic);
pt.end();
QLabel *label = createLabel();
label->setWindowTitle(fileinfo.absolutePath());
label->setPixmap(QPixmap::fromImage(image));
label->resize(label->sizeHint());
label->show();
activeWidget = label;
break;
}
case PrinterType:
{
#ifndef QT_NO_PRINTER
PaintCommands pcmd(QStringList(), 800, 800);
pcmd.setVerboseMode(verboseMode);
pcmd.setType(type);
pcmd.setCheckersBackground(checkers_background);
pcmd.setContents(content);
QString file = QString(files.at(j)).replace(".", "_") + ".ps";
QPrinter p(highres ? QPrinter::HighResolution : QPrinter::ScreenResolution);
if (printdlg) {
QPrintDialog printDialog(&p, 0);
if (printDialog.exec() != QDialog::Accepted)
break;
} else {
p.setOutputFileName(file);
}
QPainter pt(&p);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
if (!printdlg) {
printf("wrote file: %s\n", qPrintable(file));
}
Q_ASSERT(!p.paintingActive());
#endif
break;
}
case PsType:
case PdfType:
{
#ifndef QT_NO_PRINTER
PaintCommands pcmd(QStringList(), 800, 800);
pcmd.setVerboseMode(verboseMode);
pcmd.setType(type);
pcmd.setCheckersBackground(checkers_background);
pcmd.setContents(content);
QPrinter p(highres ? QPrinter::HighResolution : QPrinter::ScreenResolution);
QFileInfo input(files.at(j));
const QString file = input.baseName() + QLatin1Char('_')
+ input.suffix() + QStringLiteral(".pdf");
p.setOutputFormat(QPrinter::PdfFormat);
p.setOutputFileName(file);
p.setPageSize(QPrinter::A4);
QPainter pt(&p);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
printf("write file: %s\n", qPrintable(file));
#endif
break;
}
case GrabType:
{
QImage image(width, height, QImage::Format_ARGB32_Premultiplied);
image.fill(QColor(Qt::white).rgb());
QPainter pt(&image);
pcmd.setPainter(&pt);
pcmd.setFilePath(fileinfo.absolutePath());
pcmd.runCommands();
pt.end();
QImage image1(width, height, QImage::Format_RGB32);
image1.fill(QColor(Qt::white).rgb());
QPainter pt1(&image1);
pt1.drawImage(QPointF(0, 0), image);
pt1.end();
QString filename = QString(files.at(j)).replace(".qps", "_qps") + ".png";
image1.save(filename, "PNG");
printf("%s grabbed to %s\n", qPrintable(files.at(j)), qPrintable(filename));
break;
}
default:
break;
}
}
}
#ifndef CONSOLE_APPLICATION
if (activeWidget || interactive) {
QObject::connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit()));
app.exec();
}
delete activeWidget;
#endif
delete interactive_widget;
return 0;
}
QPaintDevice* QQuickContext2DFBOTexture::beginPainting()
{
QQuickContext2DTexture::beginPainting();
if (m_canvasWindow.size().isEmpty()) {
delete m_fbo;
delete m_multisampledFbo;
delete m_paint_device;
m_fbo = 0;
m_multisampledFbo = 0;
m_paint_device = 0;
return 0;
} else if (!m_fbo || m_canvasWindowChanged) {
delete m_fbo;
delete m_multisampledFbo;
delete m_paint_device;
m_paint_device = 0;
m_fboSize = npotAdjustedSize(m_canvasWindow.size() * m_canvasDevicePixelRatio);
m_canvasWindowChanged = false;
if (doMultisampling()) {
{
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
format.setSamples(8);
m_multisampledFbo = new QOpenGLFramebufferObject(m_fboSize, format);
}
{
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::NoAttachment);
m_fbo = new QOpenGLFramebufferObject(m_fboSize, format);
}
} else {
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
QSize s = m_fboSize;
if (m_antialiasing) { // do supersampling since multisampling is not available
GLint max;
QOpenGLContext::currentContext()->functions()->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max);
if (s.width() * 2 <= max && s.height() * 2 <= max)
s = s * 2;
}
m_fbo = new QOpenGLFramebufferObject(s, format);
}
}
if (doMultisampling())
m_multisampledFbo->bind();
else
m_fbo->bind();
if (!m_paint_device) {
QOpenGLPaintDevice *gl_device = new QOpenGLPaintDevice(m_fbo->size());
gl_device->setPaintFlipped(true);
gl_device->setSize(m_fbo->size());
gl_device->setDevicePixelRatio(m_canvasDevicePixelRatio);
qCDebug(lcCanvas, "%s size %.1lf x %.1lf painting with size %d x %d DPR %.1lf",
(m_item->objectName().isEmpty() ? "Canvas" : qPrintable(m_item->objectName())),
m_item->width(), m_item->height(), m_fbo->size().width(), m_fbo->size().height(), m_canvasDevicePixelRatio);
m_paint_device = gl_device;
}
return m_paint_device;
}
void SSGQuickLayer::grab()
{
if (!m_item || m_size.isNull()) {
delete m_fbo;
delete m_secondaryFbo;
m_fbo = m_secondaryFbo = 0;
m_depthStencilBuffer.clear();
m_dirtyTexture = false;
return;
}
QSGNode *root = m_item;
while (root->firstChild() && root->type() != QSGNode::RootNodeType)
root = root->firstChild();
if (root->type() != QSGNode::RootNodeType)
return;
if (!m_renderer) {
m_renderer = m_context->createRenderer();
connect(m_renderer, SIGNAL(sceneGraphChanged()), this, SLOT(markDirtyTexture()));
}
m_renderer->setDevicePixelRatio(m_device_pixel_ratio);
m_renderer->setRootNode(static_cast<QSGRootNode *>(root));
QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions();
bool deleteFboLater = false;
if (!m_fbo || m_fbo->size() != m_size || m_fbo->format().internalTextureFormat() != m_format
|| (!m_fbo->format().mipmap() && m_mipmap))
{
if (!m_multisamplingChecked) {
if (m_context->openglContext()->format().samples() <= 1) {
m_multisampling = false;
} else {
const QSet<QByteArray> extensions = m_context->openglContext()->extensions();
m_multisampling = extensions.contains(QByteArrayLiteral("GL_EXT_framebuffer_multisample"))
&& extensions.contains(QByteArrayLiteral("GL_EXT_framebuffer_blit"));
}
m_multisamplingChecked = true;
}
if (m_multisampling) {
// Don't delete the FBO right away in case it is used recursively.
deleteFboLater = true;
delete m_secondaryFbo;
QOpenGLFramebufferObjectFormat format;
format.setInternalTextureFormat(m_format);
format.setSamples(m_context->openglContext()->format().samples());
m_secondaryFbo = new QOpenGLFramebufferObject(m_size, format);
m_depthStencilBuffer = m_context->depthStencilBufferForFbo(m_secondaryFbo);
} else {
QOpenGLFramebufferObjectFormat format;
format.setInternalTextureFormat(m_format);
format.setMipmap(m_mipmap);
if (m_recursive) {
deleteFboLater = true;
delete m_secondaryFbo;
m_secondaryFbo = new QOpenGLFramebufferObject(m_size, format);
funcs->glBindTexture(GL_TEXTURE_2D, m_secondaryFbo->texture());
updateBindOptions(true);
m_depthStencilBuffer = m_context->depthStencilBufferForFbo(m_secondaryFbo);
} else {
delete m_fbo;
delete m_secondaryFbo;
m_fbo = new QOpenGLFramebufferObject(m_size, format);
m_secondaryFbo = 0;
funcs->glBindTexture(GL_TEXTURE_2D, m_fbo->texture());
updateBindOptions(true);
m_depthStencilBuffer = m_context->depthStencilBufferForFbo(m_fbo);
}
}
}
if (m_recursive && !m_secondaryFbo) {
// m_fbo already created, m_recursive was just set.
Q_ASSERT(m_fbo);
Q_ASSERT(!m_multisampling);
m_secondaryFbo = new QOpenGLFramebufferObject(m_size, m_fbo->format());
funcs->glBindTexture(GL_TEXTURE_2D, m_secondaryFbo->texture());
updateBindOptions(true);
}
// Render texture.
root->markDirty(QSGNode::DirtyForceUpdate); // Force matrix, clip and opacity update.
m_renderer->nodeChanged(root, QSGNode::DirtyForceUpdate); // Force render list update.
#ifdef QSG_DEBUG_FBO_OVERLAY
if (qmlFboOverlay()) {
if (!m_debugOverlay)
m_debugOverlay = new QSGSimpleRectNode();
m_debugOverlay->setRect(QRectF(0, 0, m_size.width(), m_size.height()));
m_debugOverlay->setColor(QColor(0xff, 0x00, 0x80, 0x40));
root->appendChildNode(m_debugOverlay);
}
#endif
m_dirtyTexture = false;
m_renderer->setDeviceRect(m_size);
m_renderer->setViewportRect(m_size);
QRectF mirrored(m_mirrorHorizontal ? m_rect.right() : m_rect.left(),
m_mirrorVertical ? m_rect.bottom() : m_rect.top(),
m_mirrorHorizontal ? -m_rect.width() : m_rect.width(),
m_mirrorVertical ? -m_rect.height() : m_rect.height());
m_renderer->setProjectionMatrixToRect(mirrored);
m_renderer->setClearColor(Qt::transparent);
if (m_multisampling) {
m_renderer->renderScene(BindableFbo(m_secondaryFbo, m_depthStencilBuffer.data()));
if (deleteFboLater) {
delete m_fbo;
QOpenGLFramebufferObjectFormat format;
format.setInternalTextureFormat(m_format);
format.setAttachment(QOpenGLFramebufferObject::NoAttachment);
format.setMipmap(m_mipmap);
format.setSamples(0);
m_fbo = new QOpenGLFramebufferObject(m_size, format);
funcs->glBindTexture(GL_TEXTURE_2D, m_fbo->texture());
updateBindOptions(true);
}
QRect r(QPoint(), m_size);
QOpenGLFramebufferObject::blitFramebuffer(m_fbo, r, m_secondaryFbo, r);
} else {
if (m_recursive) {
m_renderer->renderScene(BindableFbo(m_secondaryFbo, m_depthStencilBuffer.data()));
if (deleteFboLater) {
delete m_fbo;
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
format.setInternalTextureFormat(m_format);
format.setMipmap(m_mipmap);
m_fbo = new QOpenGLFramebufferObject(m_size, format);
funcs->glBindTexture(GL_TEXTURE_2D, m_fbo->texture());
updateBindOptions(true);
}
qSwap(m_fbo, m_secondaryFbo);
} else {
m_renderer->renderScene(BindableFbo(m_fbo, m_depthStencilBuffer.data()));
}
}
if (m_mipmap) {
funcs->glBindTexture(GL_TEXTURE_2D, textureId());
funcs->glGenerateMipmap(GL_TEXTURE_2D);
}
root->markDirty(QSGNode::DirtyForceUpdate); // Force matrix, clip, opacity and render list update.
#ifdef QSG_DEBUG_FBO_OVERLAY
if (qmlFboOverlay())
root->removeChildNode(m_debugOverlay);
#endif
if (m_recursive)
markDirtyTexture(); // Continuously update if 'live' and 'recursive'.
}
void Thumbnail::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *widget)
{
QRectF parentRect = parentItem()->sceneBoundingRect();
// Skip drawing thumbnails outside their parents
if (!sceneBoundingRect().intersects(parentRect)) return;
prePaint(painter, widget);
// Draw image
if(!img.isNull())
{
auto imgRect = QRectF(img.rect());
imgRect.moveCenter(rect.center());
painter->drawImage(imgRect.topLeft(), img);
}
// Draw 3D mesh
if(mesh.points.size() || auxMeshes.size())
{
if (img.isNull() || isTempImage)
{
auto glwidget = (Viewer*)widget;
if (glwidget)
{
QOpenGLContext context;
context.setShareContext(glwidget->context());
context.setFormat(glwidget->format());
context.create();
QOffscreenSurface m_offscreenSurface;
m_offscreenSurface.setFormat(context.format());
m_offscreenSurface.create();
context.makeCurrent(&m_offscreenSurface);
QOpenGLFramebufferObjectFormat fboformat;
fboformat.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
QOpenGLFramebufferObject renderFbo(rect.width() * 2, rect.height() * 2, fboformat);
renderFbo.bind();
glwidget->glEnable(GL_DEPTH_TEST);
glwidget->glEnable(GL_BLEND);
glwidget->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glwidget->glCullFace(GL_BACK);
glwidget->glClearColor(0,0,0,0);
glwidget->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glwidget->glViewport(0, 0, renderFbo.size().width(), renderFbo.size().height());
if(mesh.points.size())
glwidget->drawTriangles(mesh.color, mesh.points, mesh.normals, pvm);
// Draw aux meshes
for (auto auxmesh : auxMeshes)
glwidget->drawTriangles(auxmesh.color, auxmesh.points, auxmesh.normals, pvm);
glwidget->glDisable(GL_DEPTH_TEST);
glwidget->glFlush();
renderFbo.release();
this->setImage( renderFbo.toImage().scaledToWidth(rect.width(), Qt::SmoothTransformation) );
// Thanks for sharing!
glwidget->makeCurrent();
}
/*painter->beginNativePainting();
auto glwidget = (Viewer*)widget;
if (glwidget)
{
// Draw mesh
auto r = sceneBoundingRect();
auto v = scene()->views().first();
QPoint viewDelta = v->mapFromScene(r.topLeft());
if (viewDelta.manhattanLength() > 5) r.moveTopLeft(viewDelta);
glwidget->eyePos = eye;
glwidget->pvm = pvm;
glwidget->glViewport(r.left(), v->height() - r.height() - r.top(), r.width(), r.height());
// Clipping OpenGL
glwidget->glEnable(GL_SCISSOR_TEST);
glwidget->glScissor(parentRect.x(), v->height() - parentRect.height() - parentRect.top(), parentRect.width(), parentRect.height());
glwidget->glClear(GL_DEPTH_BUFFER_BIT);
glwidget->drawTriangles(mesh.color, mesh.points, mesh.normals, pvm);
// Draw aux meshes
for (auto auxmesh : auxMeshes)
{
glwidget->drawTriangles(auxmesh.color, auxmesh.points, auxmesh.normals, pvm);
}
glwidget->glDisable(GL_SCISSOR_TEST);
}
painter->endNativePainting();*/
}
}
// Draw the caption
if(caption.size())
{
painter->setPen(QPen(Qt::white,1));
auto textRect = rect;
textRect.setHeight(painter->fontMetrics().height() * 1.25);
textRect.moveBottom(rect.height() - textRect.height() * 0.5);
painter->drawText(textRect, caption, Qt::AlignVCenter | Qt::AlignHCenter);
}
postPaint(painter, widget);
}