TerminateProcess() is "equivalent" to kill(), while
WaitForSingleObject() is "equivalent" to waitpid(), so the handle must
be closed after WaitForSingleObject().

This simplifies the build system.

Refs <https://github.com/Genymobile/scrcpy/issues/1975#issuecomment-745314161>

The file 'E:\安安\scrcpy-win64-v1.12.1-1-g31bd9502\scrcpy-server'
exists, however, it will show msg as follow:

    INFO: scrcpy 1.12.1 <https://github.com/Genymobile/scrcpy>
    stat: No such file or directory
    ERROR: 'E:\安安\scrcpy-win64-v1.12.1-1-g31bd9502\scrcpy-server' does
    not exist or is not a regular file
    Press any key to continue...

This patch fixes it.
Signed-off-by: NYu-Chen Lin <npes87184@gmail.com>
Signed-off-by: NRomain Vimont <rom@rom1v.com>

It is always equal to argv[0] (or not used on Windows).

fix warnings reported with -Dwarning_level=2 on Windows.

Utilities have been moved to util/, but includes had not been updated
in Windows-specific files.

Ref: dfd0707a

In portable builds, scrcpy-server.jar was supposed to be present in the
current directory, so in practice it worked only if scrcpy was launched
from its own directory.

Instead, find the absolute path of the executable and build a suitable
path to use scrcpy-server.jar from the same directory.

To avoid mixing SDL_malloc()/SDL_strdup() with free(), or malloc() with
SDL_free(), always use the SDL version.

Scrcpy is a C11 project. Use the C99 standard types instead of the
SDL-specific types:

    SDL_bool -> bool
    SintXX   -> intXX_t
    UintXX   -> uintXX_t

Limit source code to 80 chars, and declare functions return type and
modifiers on a separate line.

This allows to avoid very long lines, and all function names are
aligned.

(We do this on VLC, and I like it.)

Windows does not support UTF-8, so pushing a file with non-ASCII
characters failed.

Convert the UTF-8 command line to a wide characters string and call
CreateProcessW().

Fixes <https://github.com/Genymobile/scrcpy/issues/422>

Extract command line building to a separate method.

Signed-off-by: Nyuchenlin <npes87184@gmail.com>
Signed-off-by: NRomain Vimont <rom@rom1v.com>

The common command.c handled process errors from system-specific int
values (errno).

Rather, expose a new enum process_result to handle error cause in a
generic way.

There are many user who encounters missing adb.
To stop things happens again, we check it and show
sexy response to user.
Signed-off-by: Nyuchenlin <npes87184@gmail.com>

Rename foobar.ext to foo_bar.ext.

<https://github.com/Genymobile/scrcpy/pull/226#discussion_r209454865>

On Windows, display the output of external commands (adb) when a console
is available.

All headers and sources are in src/. To avoid using relative includes
from subdirectories ("../../"), include the source root directory.

Executing commands (like "adb push") created a new terminal window on
Windows. Avoid it.

Use macros to wrap SDL_Log* functions with the "application" category.

CloseHandle() does not terminate the process. TerminateProcess() does.

The header strutil.h is two levels above sys/win/command.c, and
SDL_log.h was missing.

Move unix/ and win/ to sys/, so that we can use android/ for android
headers without confusion.

Start a new clean history from here.