From: notaz Date: Mon, 23 Jul 2012 23:44:05 +0000 (+0000) Subject: input: SDL support X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d1dc092f08a2cb2ba024680e3a63f37b54c786b9;p=libpicofe.git input: SDL support git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@957 be3aeb3a-fb24-0410-a615-afba39da0efa --- diff --git a/common/in_sdl.c b/common/in_sdl.c new file mode 100644 index 0000000..14749e5 --- /dev/null +++ b/common/in_sdl.c @@ -0,0 +1,320 @@ +/* + * (C) Gražvydas "notaz" Ignotas, 2012 + * + * This work is licensed under the terms of any of these licenses + * (at your option): + * - GNU GPL, version 2 or later. + * - GNU LGPL, version 2.1 or later. + * See the COPYING file in the top-level directory. + */ + +#include +#include +#include "input.h" +#include "in_sdl.h" + +#define IN_SDL_PREFIX "sdl:" +/* should be machine word for best performace */ +typedef unsigned long keybits_t; +#define KEYBITS_WORD_BITS (sizeof(keybits_t) * 8) + +static const char * const in_sdl_keys[SDLK_LAST] = { + [SDLK_BACKSPACE] = "backspace", + [SDLK_TAB] = "tab", + [SDLK_CLEAR] = "clear", + [SDLK_RETURN] = "return", + [SDLK_PAUSE] = "pause", + [SDLK_ESCAPE] = "escape", + [SDLK_SPACE] = "space", + [SDLK_EXCLAIM] = "!", + [SDLK_QUOTEDBL] = "\"", + [SDLK_HASH] = "#", + [SDLK_DOLLAR] = "$", + [SDLK_AMPERSAND] = "&", + [SDLK_QUOTE] = "'", + [SDLK_LEFTPAREN] = "(", + [SDLK_RIGHTPAREN] = ")", + [SDLK_ASTERISK] = "*", + [SDLK_PLUS] = "+", + [SDLK_COMMA] = ",", + [SDLK_MINUS] = "-", + [SDLK_PERIOD] = ".", + [SDLK_SLASH] = "/", + [SDLK_0] = "0", + [SDLK_1] = "1", + [SDLK_2] = "2", + [SDLK_3] = "3", + [SDLK_4] = "4", + [SDLK_5] = "5", + [SDLK_6] = "6", + [SDLK_7] = "7", + [SDLK_8] = "8", + [SDLK_9] = "9", + [SDLK_COLON] = ":", + [SDLK_SEMICOLON] = ",", + [SDLK_LESS] = "<", + [SDLK_EQUALS] = "=", + [SDLK_GREATER] = ">", + [SDLK_QUESTION] = "?", + [SDLK_AT] = "@", + [SDLK_LEFTBRACKET] = "[", + [SDLK_BACKSLASH] = "\\", + [SDLK_RIGHTBRACKET] = "]", + [SDLK_CARET] = "^", + [SDLK_UNDERSCORE] = "_", + [SDLK_BACKQUOTE] = "`", + [SDLK_a] = "a", + [SDLK_b] = "b", + [SDLK_c] = "c", + [SDLK_d] = "d", + [SDLK_e] = "e", + [SDLK_f] = "f", + [SDLK_g] = "g", + [SDLK_h] = "h", + [SDLK_i] = "i", + [SDLK_j] = "j", + [SDLK_k] = "k", + [SDLK_l] = "l", + [SDLK_m] = "m", + [SDLK_n] = "n", + [SDLK_o] = "o", + [SDLK_p] = "p", + [SDLK_q] = "q", + [SDLK_r] = "r", + [SDLK_s] = "s", + [SDLK_t] = "t", + [SDLK_u] = "u", + [SDLK_v] = "v", + [SDLK_w] = "w", + [SDLK_x] = "x", + [SDLK_y] = "y", + [SDLK_z] = "z", + [SDLK_DELETE] = "delete", + + [SDLK_KP0] = "[0]", + [SDLK_KP1] = "[1]", + [SDLK_KP2] = "[2]", + [SDLK_KP3] = "[3]", + [SDLK_KP4] = "[4]", + [SDLK_KP5] = "[5]", + [SDLK_KP6] = "[6]", + [SDLK_KP7] = "[7]", + [SDLK_KP8] = "[8]", + [SDLK_KP9] = "[9]", + [SDLK_KP_PERIOD] = "[.]", + [SDLK_KP_DIVIDE] = "[/]", + [SDLK_KP_MULTIPLY] = "[*]", + [SDLK_KP_MINUS] = "[-]", + [SDLK_KP_PLUS] = "[+]", + [SDLK_KP_ENTER] = "enter", + [SDLK_KP_EQUALS] = "equals", + + [SDLK_UP] = "up", + [SDLK_DOWN] = "down", + [SDLK_RIGHT] = "right", + [SDLK_LEFT] = "left", + [SDLK_DOWN] = "down", + [SDLK_INSERT] = "insert", + [SDLK_HOME] = "home", + [SDLK_END] = "end", + [SDLK_PAGEUP] = "page up", + [SDLK_PAGEDOWN] = "page down", + + [SDLK_F1] = "f1", + [SDLK_F2] = "f2", + [SDLK_F3] = "f3", + [SDLK_F4] = "f4", + [SDLK_F5] = "f5", + [SDLK_F6] = "f6", + [SDLK_F7] = "f7", + [SDLK_F8] = "f8", + [SDLK_F9] = "f9", + [SDLK_F10] = "f10", + [SDLK_F11] = "f11", + [SDLK_F12] = "f12", + [SDLK_F13] = "f13", + [SDLK_F14] = "f14", + [SDLK_F15] = "f15", + + [SDLK_NUMLOCK] = "numlock", + [SDLK_CAPSLOCK] = "caps lock", + [SDLK_SCROLLOCK] = "scroll lock", + [SDLK_RSHIFT] = "right shift", + [SDLK_LSHIFT] = "left shift", + [SDLK_RCTRL] = "right ctrl", + [SDLK_LCTRL] = "left ctrl", + [SDLK_RALT] = "right alt", + [SDLK_LALT] = "left alt", + [SDLK_RMETA] = "right meta", + [SDLK_LMETA] = "left meta", + [SDLK_LSUPER] = "left super", /* "Windows" keys */ + [SDLK_RSUPER] = "right super", + [SDLK_MODE] = "alt gr", + [SDLK_COMPOSE] = "compose", +}; + +static void in_sdl_probe(void) +{ + keybits_t *keystate; + + keystate = calloc(SDLK_LAST / KEYBITS_WORD_BITS + 1, sizeof(keybits_t)); + if (keystate == NULL) { + fprintf(stderr, "in_sdl: OOM\n"); + return; + } + + in_register(IN_SDL_PREFIX "keys", -1, keystate, SDLK_LAST, + in_sdl_keys, 0); +} + +static void in_sdl_free(void *drv_data) +{ + keybits_t *keystate = drv_data; + + if (keystate != NULL) + free(keystate); +} + +static const char * const * +in_sdl_get_key_names(int *count) +{ + *count = SDLK_LAST; + return in_sdl_keys; +} + +/* could use SDL_GetKeyState, but this gives better packing */ +static void update_keystate(keybits_t *keystate, int sym, int is_down) +{ + keybits_t *ks_word, mask; + + mask = 1; + mask <<= sym & (KEYBITS_WORD_BITS - 1); + ks_word = keystate + sym / KEYBITS_WORD_BITS; + if (is_down) + *ks_word |= mask; + else + *ks_word &= ~mask; +} + +static int in_sdl_update(void *drv_data, const int *binds, int *result) +{ + keybits_t *keystate = drv_data, mask; + SDL_Event event; + int i, sym, bit, b; + + while (SDL_PollEvent(&event)) { + if (event.type != SDL_KEYDOWN && event.type != SDL_KEYUP) + continue; + + update_keystate(keystate, event.key.keysym.sym, + event.type == SDL_KEYDOWN); + } + + for (i = 0; i < SDLK_LAST / KEYBITS_WORD_BITS + 1; i++) { + mask = keystate[i]; + if (mask == 0) + continue; + for (bit = 0; mask != 0; bit++, mask >>= 1) { + if ((mask & 1) == 0) + continue; + sym = i * KEYBITS_WORD_BITS + bit; + + for (b = 0; b < IN_BINDTYPE_COUNT; b++) + result[b] |= binds[IN_BIND_OFFS(sym, b)]; + } + } + + return 0; +} + +static int in_sdl_update_keycode(void *drv_data, int *is_down) +{ + int ret, ret_kc = -1, ret_down = 0; + SDL_Event event; + + ret = SDL_PollEvent(&event); + if (ret == 0) + goto out; + if (event.type != SDL_KEYDOWN && event.type != SDL_KEYUP) + goto out; + + if (event.key.type == SDL_KEYDOWN) + ret_down = 1; + ret_kc = event.key.keysym.sym; + update_keystate(drv_data, ret_kc, ret_down); +out: + if (is_down != NULL) + *is_down = ret_down; + + return ret_kc; +} + +static const struct { + short key; + short pbtn; +} key_pbtn_map[] = +{ + { SDLK_UP, PBTN_UP }, + { SDLK_DOWN, PBTN_DOWN }, + { SDLK_LEFT, PBTN_LEFT }, + { SDLK_RIGHT, PBTN_RIGHT }, + /* XXX: maybe better set this from it's plat code somehow */ + { SDLK_RETURN, PBTN_MOK }, + { SDLK_ESCAPE, PBTN_MBACK }, + { SDLK_a, PBTN_MA2 }, + { SDLK_s, PBTN_MA3 }, + { SDLK_BACKSLASH, PBTN_MENU }, + { SDLK_LEFTBRACKET, PBTN_L }, + { SDLK_RIGHTBRACKET, PBTN_R }, +}; + +#define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0])) + +static int in_sdl_menu_translate(void *drv_data, int keycode, char *charcode) +{ + int ret = 0; + int i; + + if (keycode < 0) + { + /* menu -> kc */ + keycode = -keycode; + for (i = 0; i < KEY_PBTN_MAP_SIZE; i++) + if (key_pbtn_map[i].pbtn == keycode) + return key_pbtn_map[i].key; + } + else + { + for (i = 0; i < KEY_PBTN_MAP_SIZE; i++) { + if (key_pbtn_map[i].key == keycode) { + ret = key_pbtn_map[i].pbtn; + break; + } + } + + if (charcode != NULL && (unsigned int)keycode < SDLK_LAST && + in_sdl_keys[keycode] != NULL && in_sdl_keys[keycode][1] == 0) + { + ret |= PBTN_CHAR; + *charcode = in_sdl_keys[keycode][0]; + } + } + + return ret; +} + +static const in_drv_t in_sdl_drv = { + .prefix = IN_SDL_PREFIX, + .probe = in_sdl_probe, + .free = in_sdl_free, + .get_key_names = in_sdl_get_key_names, + .update = in_sdl_update, + .update_keycode = in_sdl_update_keycode, + .menu_translate = in_sdl_menu_translate, +}; + +void in_sdl_init(const struct in_default_bind *defbinds) +{ + in_register_driver(&in_sdl_drv, defbinds); +} + diff --git a/common/in_sdl.h b/common/in_sdl.h new file mode 100644 index 0000000..47f7a83 --- /dev/null +++ b/common/in_sdl.h @@ -0,0 +1,3 @@ +struct in_default_bind; + +void in_sdl_init(const struct in_default_bind *defbinds);