Community Workspace/Tegra3/Nexus7/EGL NOK issues

According to IRC, "eglext-tests" package provides tests. At least the following extensions are missing according to the tests and claimed to be used somewhere in Mer or Nemo:

• EGL_NOK_image_shared
• EGL_NOK_swap_region2
• EGL_KHR_lock_surface2

Qt5 doesn't seem to contain any EGL_NOK usage but Qt 4.8 does:

xxxx@yyyy:/tmp/qt-everywhere-opensource-src-4.8.4$ grep -nrI EGL_NOK_ .
./src/opengl/qgl_egl.cpp:258:                    if (!QEgl::hasExtension("EGL_NOK_image_shared")) {
./src/opengl/qwindowsurface_gl.cpp:449:        haveNOKSwapRegion = QEgl::hasExtension("EGL_NOK_swap_region2");
./src/opengl/qwindowsurface_gl.cpp:453:            qDebug() << "Found EGL_NOK_swap_region2 extension. Using partial updates.";
./src/plugins/graphicssystems/meego/qmeegoextensions.cpp:89:        qFatal("EGL_NOK_image_shared not found but trying to use capability!");
./src/plugins/graphicssystems/meego/qmeegoextensions.cpp:97:        qFatal("EGL_NOK_image_shared not found but trying to use capability!");
./src/plugins/graphicssystems/meego/qmeegoextensions.cpp:105:        qFatal("EGL_NOK_image_shared not found but trying to use capability!");
./src/plugins/graphicssystems/meego/qmeegoextensions.cpp:113:        qFatal("EGL_NOK_surface_scaling not found but trying to use capability!");
./src/plugins/graphicssystems/meego/qmeegoextensions.cpp:173:    if (QEgl::hasExtension("EGL_NOK_image_shared")) {
./src/plugins/graphicssystems/meego/qmeegoextensions.cpp:174:        qDebug("MeegoGraphics: found EGL_NOK_image_shared");
./src/plugins/graphicssystems/meego/qmeegoextensions.cpp:185:    if (QEgl::hasExtension("EGL_NOK_surface_scaling")) {
./src/plugins/graphicssystems/meego/qmeegoextensions.cpp:186:        qDebug("MeegoGraphics: found EGL_NOK_surface_scaling");
./src/gui/egl/qegl.cpp:617:        if (QEgl::hasExtension("EGL_NOK_swap_region2")) {
./src/gui/egl/qegl.cpp:660:    qWarning("QEgl::eglSwapBuffersRegion2NOK() called but EGL_NOK_swap_region2 extension not present");

These are printed by eglinfo as supported on Tegra3:

• EGL_NV_system_time
• EGL_KHR_config_attribs
• EGL_KHR_surfaceless_context
• EGL_KHR_image
• EGL_KHR_image_base
• EGL_KHR_image_pixmap
• EGL_KHR_gl_texture_2D_image
• EGL_KHR_gl_texture_cubemap_image
• EGL_KHR_gl_renderbuffer_image
• EGL_ANDROID_blob_cache
• EGL_KHR_vg_parent_image
• EGL_NV_perfmon
• EGL_KHR_lock_surface
• EGL_KHR_fence_sync
• EGL_NV_sync
• EGL_NV_depth_nonlinear
• EGL_NV_post_sub_buffer
• EGL_NV_post_convert_rounding
• EGL_NV_native_query
• EGL_KHR_stream
• EGL_KHR_stream_fifo
• EGL_KHR_stream_producer_eglsurface
• EGL_KHR_stream_consumer_gltexture
• EGL_KHR_stream_cross_process_fd
• EGL_EXT_create_context_robustness
• EGL_IMG_context_priority
• EGL_NV_3dvision_surface
• EGL_KHR_reusable_sync
• EGL_NV_stream_sync
• EGL_NV_coverage_sample
• EGL_NV_coverage_sample_resolve