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Community Workspace/Tegra3/Nexus7/EGL NOK issues

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(Put the extensions in order)
(Rephrased the usage of NOK extensions in Qt 4.8)
 
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These are printed by eglinfo as supported on Tegra3:
+
'''NOTE''': Qt 4.8 MeeGo runtime provides NOK enhanced functions to applications and their usage is up to the application.
* EGL_ANDROID_blob_cache
+
 
* EGL_EXT_create_context_robustness
+
See [[EGL_extensions]] for a list of extensions and how they are supported on different hardware.
* EGL_IMG_context_priority
+
* EGL_KHR_config_attribs
+
* EGL_KHR_fence_sync
+
* EGL_KHR_gl_renderbuffer_image
+
* EGL_KHR_gl_texture_2D_image
+
* EGL_KHR_gl_texture_cubemap_image
+
* EGL_KHR_image
+
* EGL_KHR_image_base
+
* EGL_KHR_image_pixmap
+
* EGL_KHR_lock_surface
+
* EGL_KHR_reusable_sync
+
* EGL_KHR_stream
+
* EGL_KHR_stream_consumer_gltexture
+
* EGL_KHR_stream_cross_process_fd
+
* EGL_KHR_stream_fifo
+
* EGL_KHR_stream_producer_eglsurface
+
* EGL_KHR_surfaceless_context
+
* EGL_KHR_vg_parent_image
+
* EGL_NV_3dvision_surface
+
* EGL_NV_coverage_sample
+
* EGL_NV_coverage_sample_resolve
+
* EGL_NV_depth_nonlinear
+
* EGL_NV_native_query
+
* EGL_NV_perfmon
+
* EGL_NV_post_convert_rounding
+
* EGL_NV_post_sub_buffer
+
* EGL_NV_stream_sync
+
* EGL_NV_sync
+
* EGL_NV_system_time
+

Latest revision as of 09:50, 4 March 2013

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");

NOTE: Qt 4.8 MeeGo runtime provides NOK enhanced functions to applications and their usage is up to the application.

See EGL_extensions for a list of extensions and how they are supported on different hardware.

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