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Use the default fbo in Qt sense in blitFramebuffer 

QOpenGLFramebufferObject::blitFramebuffer() passes 0 when no FBO is specified.
This goes against the rest of the framework where the default fbo is what
QOpenGLContext::defaultFramebufferObject() returns. This becomes significant
with QOpenGLWidget and on iOS.

Task-number: QTBUG-45328
Change-Id: Iaeb82cd3786ad395116679c9626bdcb10e93b4e3
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
bb10
Laszlo Agocs 2015-03-31 12:32:33 +02:00
parent f041757d7a
commit a715c6ceb8
1 changed files with 4 additions and 2 deletions
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6
src/gui/opengl/qopenglframebufferobject.cpp
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@ -1484,8 +1484,10 @@ void QOpenGLFramebufferObject::blitFramebuffer(QOpenGLFramebufferObject *target,
const int ty0 = targetRect.top();
const int ty1 = targetRect.top() + targetRect.height();
extensions.glBindFramebuffer(GL_READ_FRAMEBUFFER, source ? source->handle() : 0);
extensions.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, target ? target->handle() : 0);
const GLuint defaultFboId = ctx->defaultFramebufferObject();
extensions.glBindFramebuffer(GL_READ_FRAMEBUFFER, source ? source->handle() : defaultFboId);
extensions.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, target ? target->handle() : defaultFboId);
extensions.glBlitFramebuffer(sx0, sy0, sx1, sy1,
tx0, ty0, tx1, ty1,