platform/qt/src/qmapboxgl_renderer_backend.cpp


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#include "qmapboxgl_renderer_backend.hpp"

#include <QOpenGLContext>
#include <QtGlobal>

void QMapboxGLRendererBackend::updateAssumedState()
{
    assumeFramebufferBinding(ImplicitFramebufferBinding);
    assumeViewport(0, 0, m_size);
}

void QMapboxGLRendererBackend::bind()
{
    assert(mbgl::BackendScope::exists());

    setFramebufferBinding(m_fbo);
    setViewport(0, 0, m_size);
}

mbgl::Size QMapboxGLRendererBackend::getFramebufferSize() const
{
    return m_size;
}

void QMapboxGLRendererBackend::updateFramebuffer(quint32 fbo, const mbgl::Size &size)
{
    m_fbo = fbo;
    m_size = size;
}

/*!
    Initializes an OpenGL extension function such as Vertex Array Objects (VAOs),
    required by Mapbox GL Native engine.
*/
mbgl::gl::ProcAddress QMapboxGLRendererBackend::getExtensionFunctionPointer(const char* name)
{
    QOpenGLContext* thisContext = QOpenGLContext::currentContext();
    return thisContext->getProcAddress(name);
}