whytofly
/
qt6-bb10
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

iOS: Determine render buffer resize based on CA layer, not Qt window 

We resize the render-buffer based on the CALayer of the UIView that's
backing the QPlatformWindow, so the logic in defaultFramebufferObject()
to determine if a resize is needed should be based on the relationship
between the render buffer-and the CALayer, not the render-buffer and
the QPlatformWindow.

There is still an issue of the QPlatformWindow and its UIView/CALayer
not being in sync, but that's a separate issue.

Change-Id: I84f617d07ec64fea0d027473e9720523eeae0c7a
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
bb10
Tor Arne Vestbø 2013-08-16 15:32:46 +02:00 committed by The Qt Project
parent 1baf293548
commit 4ab5870699
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/plugins/platforms/ios/qioscontext.mm
View File

@ -151,17 +151,17 @@ GLuint QIOSContext::defaultFramebufferObject(QPlatformSurface *surface) const
connect(window, SIGNAL(destroyed(QObject*)), this, SLOT(windowDestroyed(QObject*)));
}
// Ensure that the FBO's buffers match the size of the window
// Ensure that the FBO's buffers match the size of the layer
QIOSWindow *platformWindow = static_cast<QIOSWindow *>(surface);
if (framebufferObject.renderbufferWidth != platformWindow->effectiveWidth() ||
framebufferObject.renderbufferHeight != platformWindow->effectiveHeight()) {
UIView *view = reinterpret_cast<UIView *>(platformWindow->winId());
CAEAGLLayer *layer = static_cast<CAEAGLLayer *>(view.layer);
if (framebufferObject.renderbufferWidth != (layer.frame.size.width * layer.contentsScale) ||
framebufferObject.renderbufferHeight != (layer.frame.size.height * layer.contentsScale)) {
[EAGLContext setCurrentContext:m_eaglContext];
glBindFramebuffer(GL_FRAMEBUFFER, framebufferObject.handle);
glBindRenderbuffer(GL_RENDERBUFFER, framebufferObject.colorRenderbuffer);
UIView *view = reinterpret_cast<UIView *>(platformWindow->winId());
CAEAGLLayer *layer = static_cast<CAEAGLLayer *>(view.layer);
[m_eaglContext renderbufferStorage:GL_RENDERBUFFER fromDrawable:layer];
glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &framebufferObject.renderbufferWidth);