void RenderTargetFBO::blit( const RenderTargetFBSharedPtr & destination, const BlitMask & mask, const BlitFilter & filter )
{
GLint binding;
TmpCurrent current = TmpCurrent(this);
glGetIntegerv( GL_FRAMEBUFFER_BINDING_EXT, &binding );
m_bindingStack.push_back( binding );
glBindFramebuffer( GL_FRAMEBUFFER_EXT, m_framebuffer );
resizeAttachments( m_stereoTarget );
bindAttachments( m_stereoTarget );
// restore old binding
glBindFramebuffer( GL_FRAMEBUFFER_EXT, binding );
m_bindingStack.pop_back();
BlitRegion destRegion(0,0, destination->getWidth(), destination->getHeight());
BlitRegion srcRegion(0,0, this->getWidth(), this->getHeight());
blit(0, mask, filter, destRegion, srcRegion);
}
bool Win32Graphics::checkBoundaries( int x_src, int y_src,
int w_src, int h_src,
int& x_target, int& y_target,
int& w_target, int& h_target )
{
// set valid width and height
w_target = (w_target > 0) ? w_target : w_src;
h_target = (h_target > 0) ? h_target : h_src;
// clip source if needed
rect srcRegion( x_src, y_src, w_src, h_src );
rect targetRegion( x_target, y_target, w_target, h_target );
rect inter;
if( rect::intersect( srcRegion, targetRegion, &inter ) )
{
x_target = inter.x;
y_target = inter.y;
w_target = inter.width;
h_target = inter.height;
return true;
}
return false;
}
void RenderTargetFBO::blit( const RenderTargetFBOSharedPtr & destination, const BlitMask & mask, const BlitFilter & filter )
{
BlitRegion destRegion(0,0, destination->getWidth(), destination->getHeight());
BlitRegion srcRegion(0,0, this->getWidth(), this->getHeight());
blit(destination->getFramebufferId(), mask, filter, destRegion, srcRegion);
}