78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
#include <stdio.h>
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#include <gb.h>
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#include <r_io.h>
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#include <r_util.h>
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#include <SDL2/SDL.h>
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static bool __check(RIO *io, const char *pathname, bool many) {
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return r_str_startswith (pathname, "gb_joypad://");
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}
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static RIODesc *__open(RIO *io, const char *pathname, int rw, int mode) {
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if (!r_str_startswith (pathname, "gb_joypad://")) {
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return NULL;
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}
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GBJoypad *joypad = NULL;
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sscanf (pathname, "gb_joybad://%p", &joypad);
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RIODesc *desc = r_io_desc_new (io, &r_io_plugin_gb_joypad, pathname,
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R_PERM_RWX, mode, timers);
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return desc;
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}
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static int __read(RIO *io, RIODesc *desc, ut8 *buf, int len) {
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GBJoypad *joypad = (GBJoypad *)desc->data;
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if (!len || (joypad->odata & 0x10)) {
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return 0;
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}
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joypad->data = buf[0] & 0xf;
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joypad->odata |= 0x10;
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return 1;
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}
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static int __write(RIO *io, RIODesc *desc, const ut8 *buf, int len) {
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GBJoypad *joypad = (GBJoypad *)desc->data;
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if (!len || (joypad->odata & 0x10)) {
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return 0;
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}
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joypad->odata |= 0x10;
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return 1;
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}
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static bool __close(RIODesc *desc) {
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return true;
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}
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RIOPlugin r_io_plugin_gb_joypad = {
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.meta = {
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.name = "gb_joypad",
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.desc = "gb_joypad",
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.license = "LGPL",
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},
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.uris = "gb_joypad://",
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.open = __open,
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.close = __close,
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.read = __read,
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.check = __check,
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.seek = __lseek,
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.write = __write,
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};
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GBJoypad *gb_joypad_open (RIO *io) {
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joypad = R_NEW0 (GBJoypad);
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if (!joypad) {
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return NULL;
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}
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char uri[64];
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memset (uri, 0x00, sizeof (char) * 64);
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sprintf (uri, "gb_joypad://%p", joypad);
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RIODesc *desc = r_io_desc_open_plugin (io, &r_io_plugin_gb_joypad,
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uri, R_PERM_RWX, 0);
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if (!desc) {
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free (joypad);
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return NULL;
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}
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joypad->fd = desc->fd;
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joypad->keys = SDL_GetKeyboardState (NULL);
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return joypad;
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}
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