Re: Trying to get Love2D game working under Windows, works fine on Linux

[AudioGames . net Forum — Developers room : nolan via Audiogames-reflector]

Re: Trying to get Love2D game working under Windows, works fine on Linux

This is my speech code. Works on Linux and under Wine. If you can get it working under MacOS too, I'd appreciate the contribution. Note that this is the first Lua I've written in a decade or so, so make of it what you will.

-- The Windows portions of this code were adapted from the Pokecrystal Access scripts by Tyler Spivey.
-- Original scripts: https://github.com/tspivey/pokecrystal-access

local ffi = require("ffi")

ffi.cdef[[
typedef enum {
  SPD_MODE_SINGLE = 0,
  SPD_MODE_THREADED = 1
} SPDConnectionMode;

typedef enum {
  SPD_IMPORTANT = 1,
  SPD_MESSAGE = 2,
  SPD_TEXT = 3,
  SPD_NOTIFICATION = 4,
  SPD_PROGRESS = 5
} SPDPriority;

void *spd_open(const char *client_name, const char *connection_name, const char *user_name, SPDConnectionMode mode);

int spd_say(void *connection, SPDPriority priority, const char *text);

int spd_cancel(void *connection);

int spd_set_voice_rate(void *connection, signed int rate);

void spd_close(void *connection);

typedef unsigned int UINT;
typedef unsigned int DWORD;
typedef const char * LPCSTR;
typedef wchar_t * LPWSTR;

int MultiByteToWideChar(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteStr, int cbMultiByte, LPWSTR lpWideCharStr, int cchWideChar);

void Tolk_TrySAPI(bool trySAPI);
void Tolk_Load();
bool Tolk_Output(const char *s, bool interrupt);
void Tolk_Silence();

]]

local lib

local kernel32

local speech

if ffi.os == "Linux" then
  lib = ffi.load("speechd")
  speech = lib.spd_open("love2d", "love2d", "love2d", lib.SPD_MODE_SINGLE)
  lib.spd_set_voice_rate(speech, 100)
elseif ffi.os == "Windows" then
  kernel32 = ffi.load("kernel32")
  lib = ffi.load("Tolk")
  lib.Tolk_TrySAPI(true)
  lib.Tolk_Load()
end

local CP_UTF8 = 65001

function to_utf16(s)
  local needed = kernel32.MultiByteToWideChar(CP_UTF8, 0, s, -1, NULL, 0)
  local buf = ffi.new("wchar_t[?]", needed)
  local written = kernel32.MultiByteToWideChar(CP_UTF8, 0, s, -1, buf, needed)
  return ffi.string(buf, written*2)
end

local M = {}

function M.say(text, interrupt)
  if interrupt == nil then
    interrupt = true
  end
  if ffi.os == "Linux" then
    if interrupt then
      lib.spd_cancel(speech)
    end
    lib.spd_say(speech, lib.SPD_IMPORTANT, text)
  elseif ffi.os == "Windows" then
    lib.Tolk_Output(to_utf16(text), interrupt)
  end
end

function M.stop()
  if ffi.os == "Linux" then
    lib.spd_cancel(speech)
  elseif ffi.os == "Windows" then
    lib.Tolk_Silence()
  end
end

return M

URL: https://forum.audiogames.net/post/426137/#p426137

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