void StGLRootWidget::stglResize(const StGLBoxPx& theRectPx) {
const bool isChanged = getRectPx().right() != theRectPx.width()
|| getRectPx().bottom() != theRectPx.height();
myProjCamera.resize(*myGlCtx, theRectPx.width(), theRectPx.height());
changeRectPx().right() = theRectPx.width(); // (left, top) forced to zero point (0, 0)
changeRectPx().bottom() = theRectPx.height();
myProjCamera.getZParams(myRectGl);
myScaleGlX = (myRectGl.right() - myRectGl.left()) / GLdouble(getRectPx().width());
myScaleGlY = (myRectGl.top() - myRectGl.bottom()) / GLdouble(getRectPx().height());
myScrProjMat = myProjCamera.getProjMatrix();
myScrProjMat.translate(StGLVec3(0.0f, 0.0f, -myProjCamera.getZScreen()));
if(myMenuProgram->isValid()) {
myMenuProgram->use(*myGlCtx);
myMenuProgram->setProjMat(*myGlCtx, getScreenProjection());
myMenuProgram->unuse(*myGlCtx);
}
// update all child widgets
if(isChanged) {
StGLWidget::stglResize();
}
}
void StOutAnaglyph::stglDraw() {
myFPSControl.setTargetFPS(StWindow::getTargetFps());
const StGLBoxPx aVPort = StWindow::stglViewport(ST_WIN_MASTER);
if(!StWindow::isStereoOutput() || myIsBroken) {
StWindow::stglMakeCurrent(ST_WIN_MASTER);
myContext->stglResizeViewport(aVPort);
if(myToCompressMem) {
myFrBuffer->release(*myContext);
}
StWindow::signals.onRedraw(ST_DRAW_LEFT);
myFPSControl.sleepToTarget(); // decrease FPS to target by thread sleeps
StWindow::stglSwap(ST_WIN_MASTER);
++myFPSControl;
return;
}
StWindow::stglMakeCurrent(ST_WIN_MASTER);
// resize FBO
if(!myFrBuffer->initLazy(*myContext, aVPort.width(), aVPort.height(), StWindow::hasDepthBuffer())) {
myMsgQueue->pushError(stCString("Anaglyph output - critical error:\nFrame Buffer Object resize failed!"));
myIsBroken = true;
return;
}
// draw into virtual frame buffers (textures)
myFrBuffer->setupViewPort(*myContext); // we set TEXTURE sizes here
myFrBuffer->bindBufferLeft(*myContext);
StWindow::signals.onRedraw(ST_DRAW_LEFT);
myFrBuffer->bindBufferRight(*myContext);
StWindow::signals.onRedraw(ST_DRAW_RIGHT);
myFrBuffer->unbindBufferRight(*myContext);
// now draw to real screen buffer
// clear the screen and the depth buffer
myContext->stglResizeViewport(aVPort);
myContext->core20fwd->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
myContext->core20fwd->glDisable(GL_DEPTH_TEST);
myContext->core20fwd->glDisable(GL_BLEND);
myFrBuffer->bindMultiTexture(*myContext);
myFrBuffer->drawQuad(*myContext, myStereoProgram);
myFrBuffer->unbindMultiTexture(*myContext);
myFPSControl.sleepToTarget(); // decrease FPS to target by thread sleeps
StWindow::stglSwap(ST_WIN_MASTER);
++myFPSControl;
}
void StGLRootWidget::stglScissorRect(const StRectI_t& theRect,
StGLBoxPx& theScissorRect) const {
const GLint aVPortWidth = myViewport[2];
const GLint aVPortHeight = myViewport[3];
const GLint aRootWidth = getRectPx().width();
const GLint aRootHeight = getRectPx().height();
if(aRootWidth <= 0 || aRootHeight <= 0) {
// just prevent division by zero - should never happen
stMemZero(&theScissorRect, sizeof(StGLBoxPx));
return;
}
// viewport could have different size in case of rendering to FBO
const GLdouble aWidthFactor = GLdouble(aVPortWidth) / GLdouble(aRootWidth);
const GLdouble aHeightFactor = GLdouble(aVPortHeight) / GLdouble(aRootHeight);
theScissorRect.x() = myViewport[0] + GLint(aWidthFactor * GLdouble(theRect.left())) + myScrDispXPx;
theScissorRect.y() = myViewport[1] + GLint(aHeightFactor * GLdouble(aRootHeight - theRect.bottom()));
theScissorRect.width() = GLint(aWidthFactor * GLdouble(theRect.width()));
theScissorRect.height() = GLint(aHeightFactor * GLdouble(theRect.height()));
}
void StOutIZ3D::stglDraw() {
if(!StWindow::stglMakeCurrent(ST_WIN_MASTER)) {
StWindow::signals.onRedraw(ST_DRAW_MONO);
StThread::sleep(10);
return;
}
myFPSControl.setTargetFPS(StWindow::getTargetFps());
const StGLBoxPx aVPMaster = StWindow::stglViewport(ST_WIN_MASTER);
const StGLBoxPx aVPSlave = StWindow::stglViewport(ST_WIN_SLAVE);
if(!StWindow::isStereoOutput() || myIsBroken) {
if(myToCompressMem) {
myFrBuffer->release(*myContext);
}
myContext->stglResizeViewport(aVPMaster);
myContext->stglSetScissorRect(aVPMaster, false);
StWindow::signals.onRedraw(ST_DRAW_LEFT);
myContext->stglResetScissorRect();
StWindow::stglMakeCurrent(ST_WIN_SLAVE);
myContext->stglResizeViewport(aVPSlave);
myContext->stglSetScissorRect(aVPSlave, false);
myContext->core20fwd->glClearColor(0.729740052840723f, 0.729740052840723f, 0.729740052840723f, 0.0f);
// clear the screen and the depth buffer
myContext->core20fwd->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
myContext->core20fwd->glClearColor(0, 0, 0, 0);
myContext->stglResetScissorRect();
myFPSControl.sleepToTarget(); // decrease FPS to target by thread sleeps
StWindow::stglSwap(ST_WIN_ALL);
++myFPSControl;
return;
}
// resize FBO
if(!myFrBuffer->initLazy(*myContext, aVPMaster.width(), aVPMaster.height(), StWindow::hasDepthBuffer())) {
myMsgQueue->pushError(stCString("iZ3D output - critical error:\nFrame Buffer Object resize failed!"));
myIsBroken = true;
return;
}
// draw into virtual frame buffers (textures)
myFrBuffer->setupViewPort(*myContext); // we set TEXTURE sizes here
myFrBuffer->bindBufferLeft(*myContext);
StWindow::signals.onRedraw(ST_DRAW_LEFT);
myFrBuffer->bindBufferRight(*myContext);
StWindow::signals.onRedraw(ST_DRAW_RIGHT);
myFrBuffer->unbindBufferRight(*myContext);
// now draw to real screen buffer
// clear the screen and the depth buffer
myContext->stglResizeViewport(aVPMaster);
myContext->stglSetScissorRect(aVPMaster, false);
myContext->core20fwd->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
myContext->core20fwd->glDisable(GL_DEPTH_TEST);
myContext->core20fwd->glDisable(GL_BLEND);
StGLTexture& stTexTable = (myShaders.getMode() == StOutIZ3DShaders::IZ3D_TABLE_NEW) ? myTexTableNew : myTexTableOld;
myShaders.master()->use(*myContext);
myFrBuffer->bindMultiTexture(*myContext);
stTexTable.bind(*myContext, GL_TEXTURE2);
myFrBuffer->drawQuad(*myContext, myShaders.master());
stTexTable.unbind(*myContext);
myFrBuffer->unbindMultiTexture(*myContext);
myShaders.master()->unuse(*myContext);
myContext->stglResetScissorRect();
StWindow::stglMakeCurrent(ST_WIN_SLAVE);
myContext->stglResizeViewport(aVPSlave);
myContext->stglSetScissorRect(aVPSlave, false);
myContext->core20fwd->glClearColor(0.729740052840723f, 0.729740052840723f, 0.729740052840723f, 0.0f);
// clear the screen and the depth buffer
myContext->core20fwd->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
myContext->core20fwd->glClearColor(0, 0, 0, 0);
myShaders.slave()->use(*myContext);
myFrBuffer->bindMultiTexture(*myContext);
stTexTable.bind(*myContext, GL_TEXTURE2);
myFrBuffer->drawQuad(*myContext, myShaders.slave());
stTexTable.unbind(*myContext);
myFrBuffer->unbindMultiTexture(*myContext);
myShaders.slave()->unuse(*myContext);
myContext->stglResetScissorRect();
myFPSControl.sleepToTarget(); // decrease FPS to target by thread sleeps
StWindow::stglSwap(ST_WIN_ALL);
++myFPSControl;
// make sure all GL changes in callback (in StDrawer) will fine
StWindow::stglMakeCurrent(ST_WIN_MASTER);
}