author Sam Lantinga <>
Tue, 10 Jan 2017 08:54:33 -0800
changeset 10806 36f40b8cc979
parent 7635 c57071e3d636
permissions -rw-r--r--
Fixed bugs 2570, 3145, improved OpenGL ES context support on Windows and X11

Mark Callow

The attached patch does the following for the X11 and Windows platforms, the only ones where SDL attempts to use context_create_es_profile:

- Adds SDL_HINT_OPENGL_ES_DRIVER by which the application can
say to use the OpenGL ES driver & EGL rather than the Open GL
driver. (For bug #2570)
- Adds code to {WIN,X11}_GL_InitExtensions to determine the maximum
OpenGL ES version supported by the OpenGL driver (for bug #3145)
- Modifies the test that determines whether to use the OpenGL
driver or the real OpenGL ES driver to take into account the
hint, the requested and supported ES version and whether ES 1.X
is being requested. (For bug #2570 & bug #3145)
- Enables the testgles2 test for __WINDOWS__ and __LINUX__ and adds
the test to the VisualC projects.

With the fix in place I have run testdraw2, testgl and testgles2 without any issues and have run my own apps that use OpenGL, OpenGL ES 3 and OpenGL ES 1.1.
     2 Simple DirectMedia Layer CREDITS
     3 Thanks to everyone who made this possible, including:
     5 * Cliff Matthews, for giving me a reason to start this project. :)
     6  -- Executor rocks!  *grin*
     8 * Ryan Gordon for helping everybody out and keeping the dream alive. :)
    10 * Gabriel Jacobo for his work on the Android port and generally helping out all around.
    12 * Philipp Wiesemann for his attention to detail reviewing the entire SDL code base and proposes patches.
    14 * Andreas Schiffler for his dedication to unit tests, Visual Studio projects, and managing the Google Summer of Code.
    16 * Mike Sartain for incorporating SDL into Team Fortress 2 and cheering me on at Valve.
    18 * Alfred Reynolds for the game controller API and general (in)sanity
    20 * Jørgen Tjernø for numerous magical Mac OS X fixes.
    22 * Pierre-Loup Griffais for his deep knowledge of OpenGL drivers.
    24 * Julian Winter for the SDL 2.0 website.
    26 * Sheena Smith for many months of great work on the SDL wiki creating the API documentation and style guides.
    28 * Paul Hunkin for his port of SDL to Android during the Google Summer of Code 2010.
    30 * Eli Gottlieb for his work on shaped windows during the Google Summer of Code 2010.
    32 * Jim Grandpre for his work on multi-touch and gesture recognition during
    33   the Google Summer of Code 2010.
    35 * Edgar "bobbens" Simo for his force feedback API development during the
    36   Google Summer of Code 2008.
    38 * Aaron Wishnick for his work on audio resampling and pitch shifting during
    39   the Google Summer of Code 2008.
    41 * Holmes Futrell for his port of SDL to the iPhone and iPod Touch during the
    42   Google Summer of Code 2008.
    44 * Jon Atkins for SDL_image, SDL_mixer and SDL_net documentation.
    46 * Everybody at Loki Software, Inc. for their great contributions!
    48  And a big hand to everyone else who has contributed over the years.
    50 THANKS! :)
    52   -- Sam Lantinga			<>