2020-05-07 20:21:22 +02:00
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <math.h>
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#include <SDL2/SDL.h>
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2020-05-08 03:24:42 +02:00
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// Analog camera movement by Pathétique (github.com/vrmiguel), y0shin and Mors
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// Contribute or communicate bugs at github.com/vrmiguel/sm64-analog-camera
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2020-05-07 20:21:22 +02:00
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#include <ultra64.h>
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#include "controller_api.h"
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2020-05-15 20:38:35 +02:00
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#include "controller_sdl.h"
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2020-05-10 18:05:54 +02:00
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#include "../configfile.h"
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2020-05-18 03:37:52 +02:00
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#include "game/level_update.h"
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2020-05-15 20:38:35 +02:00
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// mouse buttons are also in the controller namespace (why), just offset 0x100
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#define VK_OFS_SDL_MOUSE 0x0100
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#define VK_BASE_SDL_MOUSE (VK_BASE_SDL_GAMEPAD + VK_OFS_SDL_MOUSE)
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#define MAX_JOYBINDS 32
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#define MAX_MOUSEBUTTONS 8 // arbitrary
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2020-05-08 03:24:42 +02:00
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extern int16_t rightx;
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extern int16_t righty;
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2020-05-10 10:47:38 +02:00
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#ifdef BETTERCAMERA
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2020-05-09 07:10:56 +02:00
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int mouse_x;
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int mouse_y;
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extern u8 newcam_mouse;
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2020-05-10 10:47:38 +02:00
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#endif
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2020-05-07 20:21:22 +02:00
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static bool init_ok;
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static SDL_GameController *sdl_cntrl;
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2020-05-15 20:38:35 +02:00
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static u32 num_joy_binds = 0;
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static u32 num_mouse_binds = 0;
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static u32 joy_binds[MAX_JOYBINDS][2];
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static u32 mouse_binds[MAX_JOYBINDS][2];
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static bool joy_buttons[SDL_CONTROLLER_BUTTON_MAX ] = { false };
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static u32 mouse_buttons = 0;
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static u32 last_mouse = VK_INVALID;
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static u32 last_joybutton = VK_INVALID;
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static inline void controller_add_binds(const u32 mask, const u32 *btns) {
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for (u32 i = 0; i < MAX_BINDS; ++i) {
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if (btns[i] >= VK_BASE_SDL_GAMEPAD && btns[i] <= VK_BASE_SDL_GAMEPAD + VK_SIZE) {
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if (btns[i] >= VK_BASE_SDL_MOUSE && num_joy_binds < MAX_JOYBINDS) {
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mouse_binds[num_mouse_binds][0] = btns[i] - VK_BASE_SDL_MOUSE;
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mouse_binds[num_mouse_binds][1] = mask;
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++num_mouse_binds;
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} else if (num_mouse_binds < MAX_JOYBINDS) {
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joy_binds[num_joy_binds][0] = btns[i] - VK_BASE_SDL_GAMEPAD;
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joy_binds[num_joy_binds][1] = mask;
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++num_joy_binds;
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}
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}
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}
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}
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static void controller_sdl_bind(void) {
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bzero(joy_binds, sizeof(joy_binds));
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bzero(mouse_binds, sizeof(mouse_binds));
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num_joy_binds = 0;
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num_mouse_binds = 0;
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controller_add_binds(A_BUTTON, configKeyA);
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controller_add_binds(B_BUTTON, configKeyB);
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controller_add_binds(Z_TRIG, configKeyZ);
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controller_add_binds(U_CBUTTONS, configKeyCUp);
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controller_add_binds(L_CBUTTONS, configKeyCLeft);
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controller_add_binds(D_CBUTTONS, configKeyCDown);
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controller_add_binds(R_CBUTTONS, configKeyCRight);
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controller_add_binds(L_TRIG, configKeyL);
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controller_add_binds(R_TRIG, configKeyR);
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controller_add_binds(START_BUTTON, configKeyStart);
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}
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2020-05-07 20:21:22 +02:00
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static void controller_sdl_init(void) {
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2020-05-09 07:10:56 +02:00
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if (SDL_Init(SDL_INIT_GAMECONTROLLER | SDL_INIT_EVENTS) != 0) {
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2020-05-07 20:21:22 +02:00
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fprintf(stderr, "SDL init error: %s\n", SDL_GetError());
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return;
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}
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2020-05-10 10:47:38 +02:00
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#ifdef BETTERCAMERA
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2020-05-09 07:10:56 +02:00
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if (newcam_mouse == 1)
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SDL_SetRelativeMouseMode(SDL_TRUE);
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SDL_GetRelativeMouseState(&mouse_x, &mouse_y);
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2020-05-10 10:47:38 +02:00
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#endif
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2020-05-09 07:10:56 +02:00
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2020-05-15 20:38:35 +02:00
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controller_sdl_bind();
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2020-05-07 20:21:22 +02:00
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init_ok = true;
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}
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static void controller_sdl_read(OSContPad *pad) {
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if (!init_ok) {
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return;
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}
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2020-05-10 10:47:38 +02:00
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#ifdef BETTERCAMERA
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2020-05-18 03:37:52 +02:00
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if (newcam_mouse == 1 && sCurrPlayMode != 2)
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2020-05-09 07:10:56 +02:00
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SDL_SetRelativeMouseMode(SDL_TRUE);
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else
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SDL_SetRelativeMouseMode(SDL_FALSE);
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2020-05-15 20:38:35 +02:00
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u32 mouse = SDL_GetRelativeMouseState(&mouse_x, &mouse_y);
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for (u32 i = 0; i < num_mouse_binds; ++i)
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if (mouse & SDL_BUTTON(mouse_binds[i][0]))
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pad->button |= mouse_binds[i][1];
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// remember buttons that changed from 0 to 1
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last_mouse = (mouse_buttons ^ mouse) & mouse;
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mouse_buttons = mouse;
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2020-05-10 17:41:46 +02:00
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2020-05-10 10:47:38 +02:00
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#endif
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2020-05-09 07:10:56 +02:00
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2020-05-07 20:21:22 +02:00
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SDL_GameControllerUpdate();
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if (sdl_cntrl != NULL && !SDL_GameControllerGetAttached(sdl_cntrl)) {
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SDL_GameControllerClose(sdl_cntrl);
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sdl_cntrl = NULL;
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}
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if (sdl_cntrl == NULL) {
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for (int i = 0; i < SDL_NumJoysticks(); i++) {
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if (SDL_IsGameController(i)) {
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sdl_cntrl = SDL_GameControllerOpen(i);
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if (sdl_cntrl != NULL) {
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break;
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}
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}
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}
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if (sdl_cntrl == NULL) {
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return;
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}
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}
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2020-05-15 20:38:35 +02:00
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for (u32 i = 0; i < SDL_CONTROLLER_BUTTON_MAX; ++i) {
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const bool new = SDL_GameControllerGetButton(sdl_cntrl, i);
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const bool pressed = !joy_buttons[i] && new;
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joy_buttons[i] = new;
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if (pressed) last_joybutton = i;
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}
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for (u32 i = 0; i < num_joy_binds; ++i)
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if (joy_buttons[joy_binds[i][0]])
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pad->button |= joy_binds[i][1];
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2020-05-07 20:21:22 +02:00
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int16_t leftx = SDL_GameControllerGetAxis(sdl_cntrl, SDL_CONTROLLER_AXIS_LEFTX);
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int16_t lefty = SDL_GameControllerGetAxis(sdl_cntrl, SDL_CONTROLLER_AXIS_LEFTY);
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2020-05-08 03:24:42 +02:00
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rightx = SDL_GameControllerGetAxis(sdl_cntrl, SDL_CONTROLLER_AXIS_RIGHTX);
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righty = SDL_GameControllerGetAxis(sdl_cntrl, SDL_CONTROLLER_AXIS_RIGHTY);
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2020-05-07 20:21:22 +02:00
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int16_t ltrig = SDL_GameControllerGetAxis(sdl_cntrl, SDL_CONTROLLER_AXIS_TRIGGERLEFT);
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int16_t rtrig = SDL_GameControllerGetAxis(sdl_cntrl, SDL_CONTROLLER_AXIS_TRIGGERRIGHT);
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#ifdef TARGET_WEB
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// Firefox has a bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1606562
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// It sets down y to 32768.0f / 32767.0f, which is greater than the allowed 1.0f,
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// which SDL then converts to a int16_t by multiplying by 32767.0f, which overflows into -32768.
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// Maximum up will hence never become -32768 with the current version of SDL2,
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// so this workaround should be safe in compliant browsers.
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if (lefty == -32768) {
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lefty = 32767;
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}
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if (righty == -32768) {
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righty = 32767;
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}
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#endif
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if (rightx < -0x4000) pad->button |= L_CBUTTONS;
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if (rightx > 0x4000) pad->button |= R_CBUTTONS;
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if (righty < -0x4000) pad->button |= U_CBUTTONS;
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if (righty > 0x4000) pad->button |= D_CBUTTONS;
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if (ltrig > 30 * 256) pad->button |= Z_TRIG;
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if (rtrig > 30 * 256) pad->button |= R_TRIG;
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uint32_t magnitude_sq = (uint32_t)(leftx * leftx) + (uint32_t)(lefty * lefty);
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if (magnitude_sq > (uint32_t)(DEADZONE * DEADZONE)) {
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pad->stick_x = leftx / 0x100;
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int stick_y = -lefty / 0x100;
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pad->stick_y = stick_y == 128 ? 127 : stick_y;
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}
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}
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2020-05-15 20:38:35 +02:00
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static u32 controller_sdl_rawkey(void) {
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if (last_joybutton != VK_INVALID) {
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const u32 ret = last_joybutton;
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last_joybutton = VK_INVALID;
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return ret;
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}
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for (int i = 0; i < MAX_MOUSEBUTTONS; ++i) {
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if (last_mouse & SDL_BUTTON(i)) {
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const u32 ret = VK_OFS_SDL_MOUSE + i;
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last_mouse = 0;
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return ret;
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}
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}
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return VK_INVALID;
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}
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2020-05-16 21:23:23 +02:00
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static void controller_sdl_shutdown(void) {
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if (SDL_WasInit(SDL_INIT_GAMECONTROLLER)) {
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if (sdl_cntrl) {
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SDL_GameControllerClose(sdl_cntrl);
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sdl_cntrl = NULL;
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}
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SDL_QuitSubSystem(SDL_INIT_GAMECONTROLLER);
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}
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init_ok = false;
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}
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2020-05-07 20:21:22 +02:00
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struct ControllerAPI controller_sdl = {
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2020-05-15 20:38:35 +02:00
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VK_BASE_SDL_GAMEPAD,
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2020-05-07 20:21:22 +02:00
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controller_sdl_init,
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2020-05-15 20:38:35 +02:00
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controller_sdl_read,
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controller_sdl_rawkey,
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controller_sdl_bind,
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2020-05-16 21:23:23 +02:00
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controller_sdl_shutdown
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2020-05-07 20:21:22 +02:00
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};
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