//--------------------------------------------------------------
void ofApp::draw(){
ofClear(0,0);
if (doDrawCamBackground.get())
drawSource();
if (!toggleGuiDraw) {
ofHideCursor();
drawComposite();
}
else {
ofShowCursor();
switch(drawMode.get()) {
case DRAW_COMPOSITE: drawComposite(); break;
case DRAW_PARTICLES: drawParticles(); break;
case DRAW_FLUID_FIELDS: drawFluidFields(); break;
case DRAW_FLUID_DENSITY: drawFluidDensity(); break;
case DRAW_FLUID_VELOCITY: drawFluidVelocity(); break;
case DRAW_FLUID_PRESSURE: drawFluidPressure(); break;
case DRAW_FLUID_TEMPERATURE: drawFluidTemperature(); break;
case DRAW_FLUID_DIVERGENCE: drawFluidDivergence(); break;
case DRAW_FLUID_VORTICITY: drawFluidVorticity(); break;
case DRAW_FLUID_BUOYANCY: drawFluidBuoyance(); break;
case DRAW_FLUID_OBSTACLE: drawFluidObstacle(); break;
case DRAW_FLOW_MASK: drawMask(); break;
case DRAW_OPTICAL_FLOW: drawOpticalFlow(); break;
case DRAW_SOURCE: drawSource(); break;
case DRAW_MOUSE: drawMouseForces(); break;
case DRAW_VELDOTS: drawVelocityDots(); break;
}
drawGui();
}
}
void PHISurfaceEffect::draw( QPainter *painter )
{
/*
QPoint offset;
QPixmap pixmap;
if ( sourceIsPixmap() ) {
// No point in drawing in device coordinates (pixmap will be scaled anyways).
pixmap=sourcePixmap( Qt::LogicalCoordinates, &offset );
} else {
// Draw pixmap in device coordinates to avoid pixmap scaling;
pixmap=sourcePixmap( Qt::DeviceCoordinates, &offset );
painter->setWorldTransform( QTransform() );
}
QImage img=pixmap.toImage();
img=PHI::getSurfacedImage( img, _yOff, _size );
painter->drawImage( offset, img );
*/
QRectF brect=sourceBoundingRect( Qt::LogicalCoordinates );
QImage img( static_cast<int>(brect.width()+1), static_cast<int>(brect.height()+_size+_yOff),
QImage::Format_ARGB32_Premultiplied );
QPainter pixPainter;
pixPainter.begin( &img );
pixPainter.setRenderHints( painter->renderHints() );
pixPainter.setCompositionMode( QPainter::CompositionMode_Clear );
pixPainter.fillRect( 0., 0., brect.width()+1., brect.height()+_size+_yOff+1, Qt::transparent );
pixPainter.setCompositionMode( QPainter::CompositionMode_SourceOver );
drawSource( &pixPainter );
QTransform t;
t.rotate( 180., Qt::XAxis );
t.translate( 0., (-brect.height()*2.)-_yOff+1. );
pixPainter.setTransform( t );
drawSource( &pixPainter );
pixPainter.resetTransform();
pixPainter.translate( 0., brect.height()+_yOff );
QLinearGradient gradient( 0., 0., 0., 1.0 );
gradient.setColorAt( 0., QColor( 0, 0, 0, 220 ) );
gradient.setColorAt( 0.78, QColor( 0, 0, 0, 30 ) );
gradient.setColorAt( 1., Qt::transparent );
gradient.setCoordinateMode( QGradient::ObjectBoundingMode );
pixPainter.setCompositionMode( QPainter::CompositionMode_DestinationIn );
pixPainter.fillRect( 0., 0., brect.width()+1, _size, gradient );
pixPainter.end();
painter->drawImage( 0, 0, img );
}
void ShadowEffect::draw(QPainter *painter)
{
if (m_blurRadius < 0 && qFuzzyIsNull(m_xOffset) && qFuzzyIsNull(m_yOffset)) {
drawSource(painter);
return;
}
PixmapPadMode mode = PadToEffectiveBoundingRect;
if (painter->paintEngine()->type() == QPaintEngine::OpenGL2) {
mode = NoPad;
}
// Draw pixmap in device coordinates to avoid pixmap scaling.
QPoint offset;
const QPixmap pixmap = sourcePixmap(Qt::DeviceCoordinates, &offset, mode);
if (pixmap.isNull()) {
return;
}
QTransform restoreTransform = painter->worldTransform();
painter->setWorldTransform(QTransform());
if (m_shadow.isNull()) {
m_shadow = generateShadow(pixmap);
}
// Draw shadow (draw it twice to darken it)
painter->drawImage(offset, m_shadow);
painter->drawImage(offset, m_shadow);
// Draw the actual pixmap
painter->drawPixmap(offset, pixmap);
painter->setWorldTransform(restoreTransform);
}
/*!
\reimp
*/
void QGraphicsColorizeEffect::draw(QPainter *painter)
{
Q_D(QGraphicsColorizeEffect);
if (!d->opaque) {
drawSource(painter);
return;
}
QPoint offset;
if (sourceIsPixmap()) {
// No point in drawing in device coordinates (pixmap will be scaled anyways).
const QPixmap pixmap = sourcePixmap(Qt::LogicalCoordinates, &offset, NoPad);
if (!pixmap.isNull())
d->filter->draw(painter, offset, pixmap);
return;
}
// Draw pixmap in deviceCoordinates to avoid pixmap scaling.
const QPixmap pixmap = sourcePixmap(Qt::DeviceCoordinates, &offset);
if (pixmap.isNull())
return;
QTransform restoreTransform = painter->worldTransform();
painter->setWorldTransform(QTransform());
d->filter->draw(painter, offset, pixmap);
painter->setWorldTransform(restoreTransform);
}
void ListItemCache::draw(QPainter * painter)
{
QRectF irect = sourceBoundingRect(Qt::LogicalCoordinates);
QRectF vrect = painter->clipPath().boundingRect();
if (vrect.intersects(irect)) {
QRectF newVisibleRect = irect.intersected(vrect);
QPixmap pixmap;
if (!QPixmapCache::find(m_cacheKey, &pixmap) ||
m_visibleRect.toRect() != newVisibleRect.toRect()) {
//qDebug() << "ListItemCache: caching" << m_visibleRect
// << "->" << newVisibleRect;
pixmap = QPixmap(sourceBoundingRect().toRect().size());
pixmap.fill(Qt::transparent);
QPainter pixmapPainter(&pixmap);
drawSource(&pixmapPainter);
pixmapPainter.end();
m_cacheKey = QPixmapCache::insert(pixmap);
m_visibleRect = newVisibleRect;
}
//qDebug() << "ListItemCache: blitting" << m_visibleRect;
painter->drawPixmap(0, 0, pixmap);
}
}
void NightModeGraphicsEffect::draw(QPainter* painter)
{
int pixelRatio = painter->device()->devicePixelRatio();
QSize size(painter->device()->width() * pixelRatio, painter->device()->height() * pixelRatio);
if (fbo && fbo->size() != size)
{
delete fbo;
fbo = NULL;
}
if (!fbo)
{
QGLFramebufferObjectFormat format;
format.setAttachment(QGLFramebufferObject::CombinedDepthStencil);
format.setInternalTextureFormat(GL_RGBA);
fbo = new NightModeGraphicsEffectFbo(size, format, pixelRatio);
}
QPainter fboPainter(fbo);
drawSource(&fboPainter);
painter->save();
painter->beginNativePainting();
program->bind();
const GLfloat pos[] = {-1, -1, +1, -1, -1, +1, +1, +1};
const GLfloat texCoord[] = {0, 0, 1, 0, 0, 1, 1, 1};
program->setUniformValue(vars.source, 0);
program->setAttributeArray(vars.pos, pos, 2);
program->setAttributeArray(vars.texCoord, texCoord, 2);
program->enableAttributeArray(vars.pos);
program->enableAttributeArray(vars.texCoord);
glBindTexture(GL_TEXTURE_2D, fbo->texture());
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
program->release();
painter->endNativePainting();
painter->restore();
}
//--------------------------------------------------------------
void ofApp::draw(){
ofPushMatrix();
ofSetColor(255);
if( !tracks.isLoaded() ){
vector< ofPtr<Track> > trackList = tracks.getTrackList();
string trackListStr = "";
for( int i=0;i<trackList.size();i++ ){
trackListStr += ofToString(i+1) + " : " + trackList[i]->getTrackName() + "\n";
}
Fonts::one().fontRobotoRegular30.drawString( trackListStr, 20, 30 );
}
int y = 100;
drawSource(0,ofGetHeight()-300, ofGetWidth(), 104 );
// drawResult(100,y, frameWidth,frameHeight );
// y += frameHeight + 20;
// drawFFT(100,y,frameWidth,frameHeight);
// y += frameHeight + 20;
// drawOctaves(100,y, frameWidth,frameHeight );
// y += frameHeight + 20;
// drawSpectrum(100,y, frameWidth,frameHeight );
tracks.draw();
ofPopMatrix();
}
void QgsComposerEffect::draw( QPainter *painter )
{
QPoint offset;
QPixmap pixmap;
// Set desired composition mode then draw source
painter->setCompositionMode( mCompositionMode );
if ( mCompositionMode == QPainter::CompositionMode_SourceOver )
{
// Normal (sourceover) blending, do faster drawSource operation
drawSource( painter );
return;
}
// Otherwise, draw using pixmap so QPrinter output works as expected
if ( sourceIsPixmap() )
{
// No point in drawing in device coordinates (pixmap will be scaled anyways).
pixmap = sourcePixmap( Qt::LogicalCoordinates, &offset );
}
else
{
// Draw pixmap in device coordinates to avoid pixmap scaling;
pixmap = sourcePixmap( Qt::DeviceCoordinates, &offset );
painter->setWorldTransform( QTransform() );
}
painter->drawPixmap( offset, pixmap );
}
//! [0]
MyGraphicsOpacityEffect::draw(QPainter *painter)
{
// Fully opaque; draw directly without going through a pixmap.
if (qFuzzyCompare(m_opacity, 1)) {
drawSource(painter);
return;
}
...
}
void GraphicsCompositionModeEffect::draw(QPainter* painter)
{
painter->save();
painter->setCompositionMode(m_compositionMode);
drawSource(painter);
painter->restore();
}
void Shadow::draw(QPainter* painter)
{
// if nothing to show outside the item, just draw source
if ((blurRadius() + distance()) <= 0) {
drawSource(painter);
return;
}
PixmapPadMode mode = QGraphicsEffect::PadToEffectiveBoundingRect;
QPoint offset;
const QPixmap px = sourcePixmap(Qt::DeviceCoordinates, &offset, mode);
// return if no source
if (px.isNull())
return;
// save world transform
QTransform restoreTransform = painter->worldTransform();
painter->setWorldTransform(QTransform());
// Calculate size for the background image
QSize szi(px.size().width() + 2 * distance(), px.size().height() + 2 * distance());
QImage tmp(szi, QImage::Format_ARGB32_Premultiplied);
QPixmap scaled = px.scaled(szi);
tmp.fill(0);
QPainter tmpPainter(&tmp);
tmpPainter.setCompositionMode(QPainter::CompositionMode_Source);
tmpPainter.drawPixmap(QPointF(-distance(), -distance()), scaled);
tmpPainter.end();
// blur the alpha channel
QImage blurred(tmp.size(), QImage::Format_ARGB32_Premultiplied);
blurred.fill(0);
QPainter blurPainter(&blurred);
qt_blurImage(&blurPainter, tmp, blurRadius(), false, true);
blurPainter.end();
tmp = blurred;
// blacken the image...
tmpPainter.begin(&tmp);
tmpPainter.setCompositionMode(QPainter::CompositionMode_SourceIn);
tmpPainter.fillRect(tmp.rect(), color());
tmpPainter.end();
// draw the blurred shadow...
painter->drawImage(offset, tmp);
// draw the actual pixmap...
painter->drawPixmap(offset, px, QRectF());
// restore world transform
painter->setWorldTransform(restoreTransform);
}
void draw(QPainter *painter)
{
++numRepaints;
if (doNothingInDraw)
return;
m_source = source();
m_painter = painter;
m_styleOption = source()->styleOption();
m_opacity = painter->opacity();
drawSource(painter);
}
void CardDropShadowEffect::draw(QPainter *painter)
{
Q_ASSERT(s_shadowPixmap != 0);
#if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
qDrawPixmaps(painter, m_drawingData.constData(), m_drawingData.size(), *s_shadowPixmap);
#else
// QT5_TODO
#endif
// paint the item, of course
drawSource(painter);
}
void ShaderEffect::draw (QPainter *painter)
{
const QGLContext *context = QGLContext::currentContext();
prepareBufferedDraw(painter);
if (context) {
updateRenderTargets();
}
if (!context || m_renderTargets.count() == 0 || !hideOriginal())
drawSource(painter);
}
void QgsTransformEffect::draw( QgsRenderContext &context )
{
if ( !source() || !enabled() || !context.painter() )
return;
QPainter* painter = context.painter();
//apply transformations
painter->save();
QTransform t = createTransform( context );
painter->setTransform( t, true );
drawSource( *painter );
painter->restore();
}
/*!
\reimp
*/
void QGraphicsBlurEffect::draw(QPainter *painter)
{
Q_D(QGraphicsBlurEffect);
if (d->filter->radius() < 1) {
drawSource(painter);
return;
}
PixmapPadMode mode = PadToEffectiveBoundingRect;
QPoint offset;
QPixmap pixmap = sourcePixmap(Qt::LogicalCoordinates, &offset, mode);
if (pixmap.isNull())
return;
d->filter->draw(painter, offset, pixmap);
}
//--------------------------------------------------------------
void FluidManager::draw(int _mode){
switch(_mode) {
case DRAW_COMPOSITE: drawComposite(); break;
case DRAW_PARTICLES: drawParticles(); break;
case DRAW_FLUID_FIELDS: drawFluidFields(); break;
case DRAW_FLUID_DENSITY: drawFluidDensity(); break;
// case DRAW_FLUID_TEMPERATURE: drawFluidTemperature(); break;
// case DRAW_FLUID_DIVERGENCE: drawFluidDivergence(); break;
// case DRAW_FLUID_VORTICITY: drawFluidVorticity(); break;
// case DRAW_FLUID_BUOYANCY: drawFluidBuoyance(); break;
case DRAW_FLUID_OBSTACLE: drawFluidObstacle(); break;
// case DRAW_OPTICAL_FLOW: drawOpticalFlow(); break;
case DRAW_SOURCE: drawSource(); break;
}
}
QT_END_NAMESPACE
void ShadowEffect::draw(QPainter* painter){
if((blurRadius() + distance()) <= 0){
drawSource(painter);
return;
}
PixmapPadMode mode = QGraphicsEffect::PadToEffectiveBoundingRect;
QPoint offset;
const QPixmap px = sourcePixmap(Qt::DeviceCoordinates, &offset, mode);
if(px.isNull())
return;
QTransform restoreTransform = painter->worldTransform();
painter->setWorldTransform(QTransform());
QSize szi(px.size().width() + 2 * distance(), px.size().height() + 2 * distance());
QImage tmp(szi, QImage::Format_ARGB32_Premultiplied);
QPixmap scaled = px.scaled(szi);
tmp.fill(0);
QPainter tmpPainter(&tmp);
tmpPainter.setCompositionMode(QPainter::CompositionMode_Source);
tmpPainter.drawPixmap(QPointF(-distance(), -distance()), scaled);
tmpPainter.end();
QImage blurred(tmp.size(), QImage::Format_ARGB32_Premultiplied);
blurred.fill(0);
QPainter blurPainter(&blurred);
qt_blurImage(&blurPainter, tmp, blurRadius(), false, true);
blurPainter.end();
tmp = blurred;
tmpPainter.begin(&tmp);
tmpPainter.setCompositionMode(QPainter::CompositionMode_SourceIn);
tmpPainter.fillRect(tmp.rect(), color());
tmpPainter.end();
painter->drawImage(offset, tmp);
painter->drawPixmap(offset, px, QRectF());
painter->setWorldTransform(restoreTransform);
}
/*!
\reimp
*/
void QGraphicsOpacityEffect::draw(QPainter *painter)
{
Q_D(QGraphicsOpacityEffect);
// Transparent; nothing to draw.
if (d->isFullyTransparent)
return;
// Opaque; draw directly without going through a pixmap.
if (d->isFullyOpaque && !d->hasOpacityMask) {
drawSource(painter);
return;
}
QPoint offset;
Qt::CoordinateSystem system = sourceIsPixmap() ? Qt::LogicalCoordinates : Qt::DeviceCoordinates;
QPixmap pixmap = sourcePixmap(system, &offset, QGraphicsEffect::NoPad);
if (pixmap.isNull())
return;
painter->save();
painter->setOpacity(d->opacity);
if (d->hasOpacityMask) {
QPainter pixmapPainter(&pixmap);
pixmapPainter.setRenderHints(painter->renderHints());
pixmapPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
if (system == Qt::DeviceCoordinates) {
QTransform worldTransform = painter->worldTransform();
worldTransform *= QTransform::fromTranslate(-offset.x(), -offset.y());
pixmapPainter.setWorldTransform(worldTransform);
pixmapPainter.fillRect(sourceBoundingRect(), d->opacityMask);
} else {
pixmapPainter.translate(-offset);
pixmapPainter.fillRect(pixmap.rect(), d->opacityMask);
}
}
if (system == Qt::DeviceCoordinates)
painter->setWorldTransform(QTransform());
painter->drawPixmap(offset, pixmap);
painter->restore();
}
void QGraphicsGlowEffect::draw(QPainter* painter) {
QPoint offset;
QPixmap source = sourcePixmap(Qt::LogicalCoordinates, &offset);
source = source.scaled(source.size().width()/source.devicePixelRatio(), source.size().height()/source.devicePixelRatio());
QPixmap glow;
QGraphicsColorizeEffect *colorize = new QGraphicsColorizeEffect;
colorize->setColor(_color);
colorize->setStrength(1);
glow = applyEffectToPixmap(source, colorize, 0);
QGraphicsBlurEffect *blur = new QGraphicsBlurEffect;
blur->setBlurRadius(_blurRadius);
glow = applyEffectToPixmap(glow, blur, _extent);
for (int i = 0; i < _strength; i++)
painter->drawPixmap(offset - QPoint(_extent, _extent), glow);
drawSource(painter);
}
/*!
\reimp
*/
void QGraphicsDropShadowEffect::draw(QPainter *painter)
{
Q_D(QGraphicsDropShadowEffect);
if (d->filter->blurRadius() <= 0 && d->filter->offset().isNull()) {
drawSource(painter);
return;
}
PixmapPadMode mode = PadToEffectiveBoundingRect;
// Draw pixmap in device coordinates to avoid pixmap scaling.
QPoint offset;
const QPixmap pixmap = sourcePixmap(Qt::DeviceCoordinates, &offset, mode);
if (pixmap.isNull())
return;
QTransform restoreTransform = painter->worldTransform();
painter->setWorldTransform(QTransform());
d->filter->draw(painter, offset, pixmap);
painter->setWorldTransform(restoreTransform);
}
void QuickMaskEffect::draw(QPainter *painter)
{
if (!m_mask) {
drawSource(painter);
return;
}
QPoint offset;
const QPixmap pixmap = sourcePixmap(Qt::LogicalCoordinates, &offset, QGraphicsEffect::NoPad);
if (pixmap.size() != m_buffer.size())
m_buffer = pixmap;
QPainter p(&m_buffer);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(0, 0, m_buffer.width(), m_buffer.height(), Qt::transparent);
m_mask->paint(&p, 0, 0);
p.setCompositionMode(QPainter::CompositionMode_SourceOut);
p.drawPixmap(0, 0, pixmap);
painter->drawPixmap(offset, m_buffer);
}
void QgsDrawSourceEffect::draw( QgsRenderContext &context )
{
if ( !enabled() || !context.painter() )
return;
QPainter *painter = context.painter();
if ( mBlendMode == QPainter::CompositionMode_SourceOver && qgsDoubleNear( mTransparency, 0.0 ) )
{
//just draw unmodified source
drawSource( *painter );
}
else
{
//rasterize source and apply modifications
QImage image = sourceAsImage( context )->copy();
QgsImageOperation::multiplyOpacity( image, 1.0 - mTransparency );
painter->save();
painter->setCompositionMode( mBlendMode );
painter->drawImage( imageOffset( context ), image );
painter->restore();
}
}
void ShaderEffect::updateRenderTargets()
{
if (!m_changed)
return;
m_changed = false;
int count = m_renderTargets.count();
for (int i = 0; i < count; i++) {
if (m_renderTargets[i]->isLive() || m_renderTargets[i]->isDirtyTexture()) {
m_renderTargets[i]->updateBackbuffer();
ShaderEffectBuffer* target = m_renderTargets[i]->fbo();
if (target && target->isValid() && target->width() > 0 && target->height() > 0) {
QPainter p(target);
p.setCompositionMode(QPainter::CompositionMode_Clear);
p.fillRect(QRect(QPoint(0, 0), target->size()), Qt::transparent);
p.setCompositionMode(QPainter::CompositionMode_SourceOver);
QRectF sourceRect = m_renderTargets[i]->sourceRect();
QSize textureSize = m_renderTargets[i]->textureSize();
qreal yflip = m_renderTargets[i]->isMirrored() ? -1.0 : 1.0; // flip y to match scenegraph, it also flips texturecoordinates
qreal xscale = 1.0;
qreal yscale = 1.0 * yflip;
qreal leftMargin = 0.0;
qreal rightMargin = 0.0;
qreal topMargin = 0.0;
qreal bottomMargin = 0.0;
qreal width = m_renderTargets[i]->sourceItem()->width();
qreal height = m_renderTargets[i]->sourceItem()->height();
if (!sourceRect.isEmpty()) {
leftMargin = -sourceRect.left();
rightMargin = sourceRect.right() - width;
topMargin = -sourceRect.top();
bottomMargin = sourceRect.bottom() - height;
}
if ((width + leftMargin + rightMargin) > 0 && (height + topMargin + bottomMargin) > 0) {
if (!textureSize.isEmpty()) {
qreal textureWidth = textureSize.width();
qreal textureHeight = textureSize.height();
xscale = width / (width + leftMargin + rightMargin);
yscale = height / (height + topMargin + bottomMargin);
p.translate(textureWidth / 2, textureHeight / 2);
p.scale(xscale, yscale * yflip);
p.translate(-textureWidth / 2, -textureHeight / 2);
p.scale(textureWidth / width, textureHeight / height);
} else {
xscale = width / (width + leftMargin + rightMargin);
yscale = height / (height + topMargin + bottomMargin);
p.translate(width / 2, height / 2);
p.scale(xscale, yscale * yflip);
p.translate(-width / 2, -height / 2);
}
}
drawSource(&p);
p.end();
m_renderTargets[i]->markSceneGraphDirty();
}
}
}
}
void draw(QPainter *painter)
{
drawSource(painter);
}
void CompositionRenderer::paint(QPainter *painter)
{
#if defined(QT_OPENGL_SUPPORT) && !defined(QT_OPENGL_ES)
if (usesOpenGL()) {
int new_pbuf_size = m_pbuffer_size;
if (size().width() > m_pbuffer_size ||
size().height() > m_pbuffer_size)
new_pbuf_size *= 2;
if (size().width() < m_pbuffer_size/2 &&
size().height() < m_pbuffer_size/2)
new_pbuf_size /= 2;
if (!m_pbuffer || new_pbuf_size != m_pbuffer_size) {
if (m_pbuffer) {
m_pbuffer->deleteTexture(m_base_tex);
m_pbuffer->deleteTexture(m_compositing_tex);
delete m_pbuffer;
}
m_pbuffer = new QGLPixelBuffer(QSize(new_pbuf_size, new_pbuf_size), QGLFormat::defaultFormat(), glWidget());
m_pbuffer->makeCurrent();
m_base_tex = m_pbuffer->generateDynamicTexture();
m_compositing_tex = m_pbuffer->generateDynamicTexture();
m_pbuffer_size = new_pbuf_size;
}
if (size() != m_previous_size) {
m_previous_size = size();
QPainter p(m_pbuffer);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(QRect(0, 0, m_pbuffer->width(), m_pbuffer->height()), Qt::transparent);
drawBase(p);
p.end();
m_pbuffer->updateDynamicTexture(m_base_tex);
}
qreal x_fraction = width()/float(m_pbuffer->width());
qreal y_fraction = height()/float(m_pbuffer->height());
{
QPainter p(m_pbuffer);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(QRect(0, 0, m_pbuffer->width(), m_pbuffer->height()), Qt::transparent);
p.save(); // Needed when using the GL1 engine
p.beginNativePainting(); // Needed when using the GL2 engine
glBindTexture(GL_TEXTURE_2D, m_base_tex);
glEnable(GL_TEXTURE_2D);
glColor4f(1.,1.,1.,1.);
glBegin(GL_QUADS);
{
glTexCoord2f(0, 1.0);
glVertex2f(0, 0);
glTexCoord2f(x_fraction, 1.0);
glVertex2f(width(), 0);
glTexCoord2f(x_fraction, 1.0-y_fraction);
glVertex2f(width(), height());
glTexCoord2f(0, 1.0-y_fraction);
glVertex2f(0, height());
}
glEnd();
glDisable(GL_TEXTURE_2D);
p.endNativePainting(); // Needed when using the GL2 engine
p.restore(); // Needed when using the GL1 engine
drawSource(p);
p.end();
m_pbuffer->updateDynamicTexture(m_compositing_tex);
}
painter->beginNativePainting(); // Needed when using the GL2 engine
glWidget()->makeCurrent(); // Needed when using the GL1 engine
glBindTexture(GL_TEXTURE_2D, m_compositing_tex);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
glColor4f(1.,1.,1.,1.);
glBegin(GL_QUADS);
{
glTexCoord2f(0, 1.0);
glVertex2f(0, 0);
glTexCoord2f(x_fraction, 1.0);
glVertex2f(width(), 0);
glTexCoord2f(x_fraction, 1.0-y_fraction);
glVertex2f(width(), height());
glTexCoord2f(0, 1.0-y_fraction);
glVertex2f(0, height());
}
glEnd();
glDisable(GL_TEXTURE_2D);
painter->endNativePainting(); // Needed when using the GL2 engine
} else
#endif
{
// using a QImage
if (m_buffer.size() != size()) {
m_buffer = QImage(size(), QImage::Format_ARGB32_Premultiplied);
m_base_buffer = QImage(size(), QImage::Format_ARGB32_Premultiplied);
m_base_buffer.fill(0);
QPainter p(&m_base_buffer);
drawBase(p);
}
memcpy(m_buffer.bits(), m_base_buffer.bits(), m_buffer.byteCount());
{
QPainter p(&m_buffer);
drawSource(p);
}
painter->drawImage(0, 0, m_buffer);
}
}
