Enabled by default, makes the current Magnum context a thread-local
variable instead of a global one, so it's possible to have multiple
thread-local contexts. Might have some performance implications, that's
why it's possible to disable it (but enabled by default is the safer
option).
GCC 4.7 and Apple platforms don't support thread_local, but __thread
does the job too (though on iOS not until Xcode 7.3). Also had to move
it to file-local because MSVC doesn't like having thread local variables
as part of DLL interface. (And there is *of course* no way to disable
exporting one particular member. F' that.)
Toggles between using CGL/GLX/WGL (requiring running graphical desktop
environment) or EGL (without display attachment) for command-line
utilities and GL tests. Also exposed to the user through
MAGNUM_TARGET_HEADLESS CMake and preprocessor variables.
As we are now using absolute includes, there is no need to prefix
everything with "magnum<Namespace>" etc. All generated configuration
files are renamed to configure.h and their path is included _before_
everything else to avoid accidental collisions.
Everything what was in src/ is now in src/Corrade, everything from
src/Plugins is now in src/MagnumPlugins, everything from external/ is in
src/MagnumExternal. Added new CMakeLists.txt file and updated the other
ones for the moves, no other change was made. If MAGNUM_BUILD_DEPRECATED
is set, everything compiles and installs like previously except for the
plugins, which are now in MagnumPlugins and not in Magnum/Plugins.
In next few commits AbstractFont will become plugin interface. Font
implementations are now in magnum-plugins repository. Removed all traces
of FreeType and HarfBuzz dependencies.
Makes it easier to disable parts of the code than with this. And this
would also not be future-proof:
defined(MAGNUM_TARGET_GLES) && !defined(MAGNUM_TARGET_GLES2)
The text will be rendered without all the nifty features like kerning
and it will most probably fail on everything non-latin, but HarfBuzz is
currently PITA on some systems.
HarfBuzz usage can be configured using USE_HARFBUZZ CMake option.
4.6 doesn't support `override` keyword, using preprocessor macro to
simply hide it. The compatibility mode must be explicitly enabled,
though, using GCC46_COMPATIBILITY CMake option.
Desktop OpenGL and OpenGL ES 2 support can be switched using CMake
TARGET_GLES option. All functionality not supported in ES is marked in
documentation.
If targetting OpenGL ES, GLES2/gl2.h is included instead of GLEW.
Mesh class now uses VAOs only in desktop OpenGL, in ES the buffers are
bound on each draw call.
Vladimír Vondruš