The scene now owns its renderer, so there is no need to keep a list
of existing renderers and to call Renderer::Get().

Not all programs support this feature for now, but that’s because they
don’t support the scene framework either, and will need patching. Also
the default postprocess is deliberately exaggerated for now.

The containers no longer force the user to use the ptrdiff_t type for
size information. For convenience, size() now always returns an int,
and the size_s() method offers a way to handle arrays with more than
2 billion elements. Internally, we still use ptrdiff_t, though.

Since so much code had to be changed, I took the opportunity to get
rid of capitalised accessors for classes that are lowercase.

SDL2: Mouse is back ! With correct focus support
SDL2: Added typing support with keyboard
ShaderBuilder: Refactored and simplified Shader block creation
Several warning removal
Fixed Image::Copy

scene so that g_scene can be deprecated later.

classes instead of Video.

that 2-year old "temporary Win32 hack".

currently works for images (SDL and GDI+ loaders) and sound samples.

calls so that they take a number of vertices or indexes, not elements.

Shader::SetUniform override, and implement most of the FBO code for
the Direct3D backend.

projects, we now use Video::SetClearColor, Video::SetClearDepth and
Video::Clear instead, so that the Direct3D equivalents can be called.

it to DirectX.

on Windows if using Visual Studio; if using MinGW, try to stick to the
original main() entry point.

do not open a console at startup.

make sure each .vcxproj file is with its corresponding source code.

"half" class. The build is now 3% faster.

it's a bit less confusing.