mpv/osdep/main-fn-win.c

#include <windows.h>

#ifndef BASE_SEARCH_PATH_ENABLE_SAFE_SEARCHMODE
#define BASE_SEARCH_PATH_ENABLE_SAFE_SEARCHMODE (0x0001)
#endif

#include "config.h"

#include "common/common.h"
#include "osdep/io.h"
#include "osdep/terminal.h"
#include "osdep/main-fn.h"

int wmain(int argc, wchar_t *argv[]);

// mpv does its own wildcard expansion in the option parser
int _dowildcard = 0;

static bool is_valid_handle(HANDLE h)
{
    return h != INVALID_HANDLE_VALUE && h != NULL &&
           GetFileType(h) != FILE_TYPE_UNKNOWN;
}

static bool has_redirected_stdio(void)
{
    return is_valid_handle(GetStdHandle(STD_INPUT_HANDLE)) ||
           is_valid_handle(GetStdHandle(STD_OUTPUT_HANDLE)) ||
           is_valid_handle(GetStdHandle(STD_ERROR_HANDLE));
}

static void microsoft_nonsense(void)
{
    // stop Windows from showing all kinds of annoying error dialogs
    SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);

    // Enable heap corruption detection
    HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);

    HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
    WINBOOL (WINAPI *pSetSearchPathMode)(DWORD Flags) =
        (WINBOOL (WINAPI *)(DWORD))GetProcAddress(kernel32, "SetSearchPathMode");

    // Always use safe search paths for DLLs and other files, ie. never use the
    // current directory
    SetDllDirectoryW(L"");
    if (pSetSearchPathMode)
        pSetSearchPathMode(BASE_SEARCH_PATH_ENABLE_SAFE_SEARCHMODE);
}

int wmain(int argc, wchar_t *argv[])
{
    microsoft_nonsense();

    // If started from the console wrapper (see osdep/win32-console-wrapper.c),
    // attach to the console and set up the standard IO handles
    bool has_console = terminal_try_attach();

    // If mpv is started from Explorer, the Run dialog or the Start Menu, it
    // will have no console and no standard IO handles. In this case, the user
    // is expecting mpv to show some UI, so enable the pseudo-GUI profile.
    bool gui = !has_console && !has_redirected_stdio();

    int argv_len = 0;
    char **argv_u8 = NULL;

    // Build mpv's UTF-8 argv, and add the pseudo-GUI profile if necessary
    if (argv[0])
        MP_TARRAY_APPEND(NULL, argv_u8, argv_len, mp_to_utf8(argv_u8, argv[0]));
    if (gui) {
        MP_TARRAY_APPEND(NULL, argv_u8, argv_len,
                         "--player-operation-mode=pseudo-gui");
    }
    for (int i = 1; i < argc; i++)
        MP_TARRAY_APPEND(NULL, argv_u8, argv_len, mp_to_utf8(argv_u8, argv[i]));
    MP_TARRAY_APPEND(NULL, argv_u8, argv_len, NULL);

    int ret = mpv_main(argv_len - 1, argv_u8);

    talloc_free(argv_u8);
    return ret;
}