598 lines
15 KiB
C++
598 lines
15 KiB
C++
// VBA-M, A Nintendo Handheld Console Emulator
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// Copyright (C) 2015 VBA-M development team
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2, or(at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software Foundation,
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// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#include "sdl/inputSDL.h"
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#include "sdl/ConfigManager.h"
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#define SDLBUTTONS_NUM 14
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static void sdlUpdateKey(uint32_t key, bool down);
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static void sdlUpdateJoyButton(int which, int button, bool pressed);
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static void sdlUpdateJoyHat(int which, int hat, int value);
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static void sdlUpdateJoyAxis(int which, int axis, int value);
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static bool sdlCheckJoyKey(int key);
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static bool sdlButtons[4][SDLBUTTONS_NUM] = {
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{ false, false, false, false, false, false,
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false, false, false, false, false, false,
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false, false },
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{ false, false, false, false, false, false,
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false, false, false, false, false, false,
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false, false },
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{ false, false, false, false, false, false,
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false, false, false, false, false, false,
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false, false },
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{ false, false, false, false, false, false,
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false, false, false, false, false, false,
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false, false }
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};
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static bool sdlMotionButtons[4] = { false, false, false, false };
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static int sdlNumDevices = 0;
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static SDL_Joystick** sdlDevices = NULL;
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static EPad sdlDefaultJoypad = PAD_MAIN;
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static int autoFire = 0;
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static int autoFireToggle = 0;
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static int autoFireCountdown = 0;
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static int sensorX = 0;
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static int sensorY = 0;
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static uint32_t joypad[5][SDLBUTTONS_NUM] = {
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{
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SDLK_LEFT, SDLK_RIGHT,
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SDLK_UP, SDLK_DOWN,
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SDLK_z, SDLK_x,
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SDLK_RETURN, SDLK_BACKSPACE,
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SDLK_a, SDLK_s,
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SDLK_SPACE, SDLK_F12,
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SDLK_q, SDLK_w,
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}
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};
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static uint32_t motion[4] = {
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SDLK_KP_4, SDLK_KP_6, SDLK_KP_8, SDLK_KP_2
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};
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static uint32_t defaultMotion[4] = {
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SDLK_KP_4, SDLK_KP_6, SDLK_KP_8, SDLK_KP_2
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};
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static uint32_t sdlGetHatCode(const SDL_Event& event)
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{
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if (!event.jhat.value)
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return 0;
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return (
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((event.jhat.which + 1) << 16) | 32 | (event.jhat.hat << 2) | (event.jhat.value & SDL_HAT_UP ? 0 : event.jhat.value & SDL_HAT_DOWN ? 1 : event.jhat.value & SDL_HAT_RIGHT ? 2 : event.jhat.value & SDL_HAT_LEFT ? 3 : 0));
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}
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static uint32_t sdlGetButtonCode(const SDL_Event& event)
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{
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return (
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((event.jbutton.which + 1) << 16) | (event.jbutton.button + 0x80));
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}
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static uint32_t sdlGetAxisCode(const SDL_Event& event)
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{
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if (event.jaxis.value >= -16384 && event.jaxis.value <= 16384)
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return 0;
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return (
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((event.jaxis.which + 1) << 16) | (event.jaxis.axis << 1) | (event.jaxis.value > 16384 ? 1 : event.jaxis.value < -16384 ? 0 : 0));
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}
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uint32_t inputGetEventCode(const SDL_Event& event)
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{
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switch (event.type) {
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case SDL_EVENT_KEY_DOWN:
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case SDL_EVENT_KEY_UP:
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return event.key.keysym.sym;
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break;
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case SDL_EVENT_JOYSTICK_HAT_MOTION:
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return sdlGetHatCode(event);
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break;
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case SDL_EVENT_JOYSTICK_BUTTON_DOWN:
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case SDL_EVENT_JOYSTICK_BUTTON_UP:
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return sdlGetButtonCode(event);
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break;
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case SDL_EVENT_JOYSTICK_AXIS_MOTION:
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return sdlGetAxisCode(event);
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break;
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default:
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return 0;
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break;
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}
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}
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uint32_t inputGetKeymap(EPad pad, EKey key)
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{
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return joypad[pad][key];
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}
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void inputSetKeymap(EPad pad, EKey key, uint32_t code)
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{
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joypad[pad][key] = code;
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}
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void inputSetMotionKeymap(EKey key, uint32_t code)
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{
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motion[key] = code;
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}
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bool inputGetAutoFire(EKey key)
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{
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int mask = 0;
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switch (key) {
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case KEY_BUTTON_A:
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mask = 1 << 0;
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break;
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case KEY_BUTTON_B:
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mask = 1 << 1;
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break;
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case KEY_BUTTON_R:
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mask = 1 << 8;
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break;
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case KEY_BUTTON_L:
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mask = 1 << 9;
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break;
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default:
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break;
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}
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return !(autoFire & mask);
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}
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bool inputToggleAutoFire(EKey key)
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{
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int mask = 0;
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switch (key) {
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case KEY_BUTTON_A:
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mask = 1 << 0;
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break;
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case KEY_BUTTON_B:
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mask = 1 << 1;
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break;
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case KEY_BUTTON_R:
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mask = 1 << 8;
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break;
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case KEY_BUTTON_L:
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mask = 1 << 9;
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break;
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default:
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break;
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}
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if (autoFire & mask) {
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autoFire &= ~mask;
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return false;
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} else {
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autoFire |= mask;
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return true;
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}
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}
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static void sdlUpdateKey(uint32_t key, bool down)
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{
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int i;
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for (int j = 0; j < 4; j++) {
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for (i = 0; i < SDLBUTTONS_NUM; i++) {
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//if((joypad[j][i] & 0xffff0000) == 0) {
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if (key == joypad[j][i])
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sdlButtons[j][i] = down;
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//}
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}
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}
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for (i = 0; i < 4; i++) {
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//if((motion[i] & 0xffff0000) == 0) {
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if (key == motion[i])
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sdlMotionButtons[i] = down;
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//}
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}
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}
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static void sdlUpdateJoyButton(int which,
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int button,
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bool pressed)
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{
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int i;
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for (int j = 0; j < 4; j++) {
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for (i = 0; i < SDLBUTTONS_NUM; i++) {
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int dev = (joypad[j][i] >> 16);
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int b = joypad[j][i] & 0xffff;
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if (dev) {
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dev--;
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if ((dev == which) && (b >= 128) && (b == (button + 128))) {
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sdlButtons[j][i] = pressed;
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}
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}
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}
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}
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for (i = 0; i < 4; i++) {
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int dev = (motion[i] >> 16);
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int b = motion[i] & 0xffff;
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if (dev) {
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dev--;
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if ((dev == which) && (b >= 128) && (b == (button + 128))) {
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sdlMotionButtons[i] = pressed;
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}
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}
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}
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}
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static void sdlUpdateJoyHat(int which,
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int hat,
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int value)
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{
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int i;
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for (int j = 0; j < 4; j++) {
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for (i = 0; i < SDLBUTTONS_NUM; i++) {
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int dev = (joypad[j][i] >> 16);
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int a = joypad[j][i] & 0xffff;
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if (dev) {
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dev--;
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if ((dev == which) && (a >= 32) && (a < 48) && (((a & 15) >> 2) == hat)) {
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int dir = a & 3;
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int v = 0;
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switch (dir) {
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case 0:
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v = value & SDL_HAT_UP;
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break;
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case 1:
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v = value & SDL_HAT_DOWN;
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break;
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case 2:
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v = value & SDL_HAT_RIGHT;
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break;
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case 3:
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v = value & SDL_HAT_LEFT;
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break;
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}
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sdlButtons[j][i] = (v ? true : false);
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}
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}
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}
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}
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for (i = 0; i < 4; i++) {
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int dev = (motion[i] >> 16);
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int a = motion[i] & 0xffff;
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if (dev) {
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dev--;
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if ((dev == which) && (a >= 32) && (a < 48) && (((a & 15) >> 2) == hat)) {
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int dir = a & 3;
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int v = 0;
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switch (dir) {
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case 0:
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v = value & SDL_HAT_UP;
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break;
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case 1:
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v = value & SDL_HAT_DOWN;
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break;
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case 2:
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v = value & SDL_HAT_RIGHT;
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break;
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case 3:
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v = value & SDL_HAT_LEFT;
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break;
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}
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sdlMotionButtons[i] = (v ? true : false);
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}
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}
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}
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}
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static void sdlUpdateJoyAxis(int which,
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int axis,
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int value)
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{
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int i;
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for (int j = 0; j < 4; j++) {
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for (i = 0; i < SDLBUTTONS_NUM; i++) {
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int dev = (joypad[j][i] >> 16);
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int a = joypad[j][i] & 0xffff;
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if (dev) {
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dev--;
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if ((dev == which) && (a < 32) && ((a >> 1) == axis)) {
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sdlButtons[j][i] = (a & 1) ? (value > 16384) : (value < -16384);
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}
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}
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}
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}
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for (i = 0; i < 4; i++) {
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int dev = (motion[i] >> 16);
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int a = motion[i] & 0xffff;
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if (dev) {
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dev--;
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if ((dev == which) && (a < 32) && ((a >> 1) == axis)) {
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sdlMotionButtons[i] = (a & 1) ? (value > 16384) : (value < -16384);
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}
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}
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}
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}
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static bool sdlCheckJoyKey(int key)
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{
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int dev = (key >> 16) - 1;
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int what = key & 0xffff;
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if (what >= 128) {
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// joystick button
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int button = what - 128;
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if (button >= SDL_GetNumJoystickButtons(sdlDevices[dev]))
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return false;
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} else if (what < 0x20) {
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// joystick axis
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what >>= 1;
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if (what >= SDL_GetNumJoystickAxes(sdlDevices[dev]))
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return false;
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} else if (what < 0x30) {
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// joystick hat
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what = (what & 15);
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what >>= 2;
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if (what >= SDL_GetNumJoystickHats(sdlDevices[dev]))
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return false;
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}
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// no problem found
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return true;
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}
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void inputInitJoysticks()
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{
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// The main joypad has to be entirely defined
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for (int i = 0; i < SDLBUTTONS_NUM; i++) {
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if (!joypad[PAD_MAIN][i])
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joypad[PAD_MAIN][i] = joypad[PAD_DEFAULT][i];
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}
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sdlNumDevices = SDL_NumJoysticks();
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if (sdlNumDevices)
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sdlDevices = (SDL_Joystick**)calloc(1, sdlNumDevices * sizeof(SDL_Joystick**));
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bool usesJoy = false;
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for (int j = 0; j < 4; j++) {
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for (int i = 0; i < SDLBUTTONS_NUM; i++) {
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int dev = joypad[j][i] >> 16;
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if (dev) {
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dev--;
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bool ok = false;
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if (sdlDevices) {
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if (dev < sdlNumDevices) {
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if (sdlDevices[dev] == NULL) {
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sdlDevices[dev] = SDL_OpenJoystick(dev);
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}
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ok = sdlCheckJoyKey(joypad[j][i]);
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} else
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ok = false;
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}
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if (!ok)
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joypad[j][i] = joypad[PAD_DEFAULT][i];
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else
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usesJoy = true;
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}
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}
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}
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for (int i = 0; i < 4; i++) {
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int dev = motion[i] >> 16;
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if (dev) {
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dev--;
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bool ok = false;
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if (sdlDevices) {
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if (dev < sdlNumDevices) {
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if (sdlDevices[dev] == NULL) {
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sdlDevices[dev] = SDL_OpenJoystick(dev);
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}
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ok = sdlCheckJoyKey(motion[i]);
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} else
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ok = false;
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}
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if (!ok)
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motion[i] = defaultMotion[i];
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else
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usesJoy = true;
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}
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}
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if (usesJoy)
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SDL_JoystickEventState(SDL_ENABLE);
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}
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void inputProcessSDLEvent(const SDL_Event& event)
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{
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// fprintf(stdout, "%x\n", inputGetEventCode(event));
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switch (event.type) {
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case SDL_EVENT_KEY_DOWN:
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if (!event.key.keysym.mod)
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sdlUpdateKey(event.key.keysym.sym, true);
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break;
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case SDL_EVENT_KEY_UP:
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if (!event.key.keysym.mod)
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sdlUpdateKey(event.key.keysym.sym, false);
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break;
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case SDL_EVENT_JOYSTICK_HAT_MOTION:
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sdlUpdateJoyHat(event.jhat.which,
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event.jhat.hat,
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event.jhat.value);
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break;
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case SDL_EVENT_JOYSTICK_BUTTON_DOWN:
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case SDL_EVENT_JOYSTICK_BUTTON_UP:
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sdlUpdateJoyButton(event.jbutton.which,
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event.jbutton.button,
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event.jbutton.state == SDL_PRESSED);
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break;
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case SDL_EVENT_JOYSTICK_AXIS_MOTION:
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sdlUpdateJoyAxis(event.jaxis.which,
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event.jaxis.axis,
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event.jaxis.value);
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break;
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}
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}
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uint32_t inputReadJoypad(int which)
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{
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int realAutoFire = autoFire;
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if (which < 0 || which > 3)
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which = sdlDefaultJoypad;
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uint32_t res = 0;
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if (sdlButtons[which][KEY_BUTTON_A])
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res |= 1;
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if (sdlButtons[which][KEY_BUTTON_B])
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res |= 2;
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if (sdlButtons[which][KEY_BUTTON_SELECT])
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res |= 4;
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if (sdlButtons[which][KEY_BUTTON_START])
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res |= 8;
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if (sdlButtons[which][KEY_RIGHT])
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res |= 16;
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if (sdlButtons[which][KEY_LEFT])
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res |= 32;
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if (sdlButtons[which][KEY_UP])
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res |= 64;
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if (sdlButtons[which][KEY_DOWN])
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res |= 128;
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if (sdlButtons[which][KEY_BUTTON_R])
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res |= 256;
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if (sdlButtons[which][KEY_BUTTON_L])
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res |= 512;
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if (sdlButtons[which][KEY_BUTTON_AUTO_A])
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realAutoFire ^= 1;
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if (sdlButtons[which][KEY_BUTTON_AUTO_B])
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realAutoFire ^= 2;
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// disallow L+R or U+D of being pressed at the same time
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if ((res & 48) == 48)
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res &= ~16;
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if ((res & 192) == 192)
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res &= ~128;
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if (sdlButtons[which][KEY_BUTTON_SPEED])
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res |= 1024;
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if (sdlButtons[which][KEY_BUTTON_CAPTURE])
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res |= 2048;
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if (realAutoFire) {
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res &= (~realAutoFire);
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if (autoFireToggle)
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res |= realAutoFire;
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autoFireCountdown--; // this needs decrementing even when autoFireToggle is toggled,
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// so that autoFireMaxCount==1 (the default) will alternate at the maximum possible
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// frequency (every time this code is reached). Which is what it did before
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// introducing autoFireCountdown.
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if (autoFireCountdown <= 0) {
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autoFireToggle = !autoFireToggle;
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autoFireCountdown = autoFireMaxCount;
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}
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}
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return res;
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}
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void inputUpdateMotionSensor()
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{
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if (sdlMotionButtons[KEY_LEFT]) {
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sensorX += 3;
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if (sensorX > 2197)
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sensorX = 2197;
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if (sensorX < 2047)
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sensorX = 2057;
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} else if (sdlMotionButtons[KEY_RIGHT]) {
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sensorX -= 3;
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if (sensorX < 1897)
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|
sensorX = 1897;
|
|
if (sensorX > 2047)
|
|
sensorX = 2037;
|
|
} else if (sensorX > 2047) {
|
|
sensorX -= 2;
|
|
if (sensorX < 2047)
|
|
sensorX = 2047;
|
|
} else {
|
|
sensorX += 2;
|
|
if (sensorX > 2047)
|
|
sensorX = 2047;
|
|
}
|
|
|
|
if (sdlMotionButtons[KEY_UP]) {
|
|
sensorY += 3;
|
|
if (sensorY > 2197)
|
|
sensorY = 2197;
|
|
if (sensorY < 2047)
|
|
sensorY = 2057;
|
|
} else if (sdlMotionButtons[KEY_DOWN]) {
|
|
sensorY -= 3;
|
|
if (sensorY < 1897)
|
|
sensorY = 1897;
|
|
if (sensorY > 2047)
|
|
sensorY = 2037;
|
|
} else if (sensorY > 2047) {
|
|
sensorY -= 2;
|
|
if (sensorY < 2047)
|
|
sensorY = 2047;
|
|
} else {
|
|
sensorY += 2;
|
|
if (sensorY > 2047)
|
|
sensorY = 2047;
|
|
}
|
|
}
|
|
|
|
int inputGetSensorX()
|
|
{
|
|
return sensorX;
|
|
}
|
|
|
|
int inputGetSensorY()
|
|
{
|
|
return sensorY;
|
|
}
|
|
|
|
void inputSetDefaultJoypad(EPad pad)
|
|
{
|
|
sdlDefaultJoypad = pad;
|
|
}
|
|
|
|
EPad inputGetDefaultJoypad()
|
|
{
|
|
return sdlDefaultJoypad;
|
|
}
|