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beetle-psx-libretro/input.cpp

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Isolate input code from libretro.cpp
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#include "libretro.h"
#include "mednafen/mednafen-types.h"
#include <math.h>
#include <stdio.h>
#include "mednafen/git.h"
#include "mednafen/psx/frontio.h"
//------------------------------------------------------------------------------
// Locals
//------------------------------------------------------------------------------
static retro_environment_t environ_cb; // cached during input_set_env
static retro_rumble_interface rumble; // acquired during input_init_env
static FrontIO* FIO; // cached in input_set_fio
#define MAX_CONTROLLERS 8
static unsigned players = 2;
static bool enable_analog_calibration = false;
typedef union
{
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uint8_t u8[ 10 * sizeof( uint32_t ) ];
uint32_t u32[ 10 ]; /* 1 + 8 + 1 */
uint16_t buttons;
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}
INPUT_DATA;
// Controller state buffer (per player)
static INPUT_DATA input_data[ MAX_CONTROLLERS ] = {0};
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struct analog_calibration
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{
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float left;
float right;
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};
static struct analog_calibration analog_calibration[MAX_CONTROLLERS];
// Controller type (per player)
static uint32_t input_type[ MAX_CONTROLLERS ] = {0};
//------------------------------------------------------------------------------
// Supported Devices
//------------------------------------------------------------------------------
#define RETRO_DEVICE_PS_CONTROLLER RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 0)
#define RETRO_DEVICE_PS_DUALSHOCK RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 1)
#define RETRO_DEVICE_PS_ANALOG RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 0)
#define RETRO_DEVICE_PS_ANALOG_JOYSTICK RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 2)
#define RETRO_DEVICE_PS_MOUSE RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_MOUSE, 0)
PlayStation Mouse support
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enum { INPUT_DEVICE_TYPES_COUNT = 1 /*none*/ + 5 }; // <-- update me!
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static const struct retro_controller_description input_device_types[ INPUT_DEVICE_TYPES_COUNT ] =
{
{ "PlayStation Controller", RETRO_DEVICE_JOYPAD },
{ "DualShock", RETRO_DEVICE_PS_DUALSHOCK },
{ "Analog Controller", RETRO_DEVICE_PS_ANALOG },
{ "Analog Joystick", RETRO_DEVICE_PS_ANALOG_JOYSTICK },
PlayStation Mouse support
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{ "Mouse", RETRO_DEVICE_PS_MOUSE },
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{ NULL, 0 },
};
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//------------------------------------------------------------------------------
// Mapping Helpers
//------------------------------------------------------------------------------
/* Controller (default) */
enum { INPUT_MAP_CONTROLLER_SIZE = 16 };
static const unsigned input_map_controller[ INPUT_MAP_CONTROLLER_SIZE ] =
{
// libretro input at position || maps to PS1 on bit
//-----------------------------------------------------------------------------
#ifdef MSB_FIRST
RETRO_DEVICE_ID_JOYPAD_L2, // L-trigger -> L2
RETRO_DEVICE_ID_JOYPAD_R2, // R-trigger -> R2
RETRO_DEVICE_ID_JOYPAD_L, // L-shoulder -> L1
RETRO_DEVICE_ID_JOYPAD_R, // R-shoulder -> R1
RETRO_DEVICE_ID_JOYPAD_X, // X(top) -> Triangle
RETRO_DEVICE_ID_JOYPAD_A, // A(right) -> Circle
RETRO_DEVICE_ID_JOYPAD_B, // B(down) -> Cross
RETRO_DEVICE_ID_JOYPAD_Y, // Y(left) -> Square
RETRO_DEVICE_ID_JOYPAD_SELECT, // Select -> Select
RETRO_DEVICE_ID_JOYPAD_L3, // L-thumb -> L3
RETRO_DEVICE_ID_JOYPAD_R3, // R-thumb -> R3
RETRO_DEVICE_ID_JOYPAD_START, // Start -> Start
RETRO_DEVICE_ID_JOYPAD_UP, // Pad-Up -> Pad-Up
RETRO_DEVICE_ID_JOYPAD_RIGHT, // Pad-Down -> Pad-Down
RETRO_DEVICE_ID_JOYPAD_DOWN, // Pad-Left -> Pad-Left
RETRO_DEVICE_ID_JOYPAD_LEFT, // Pad-Right -> Pad-Right
#else
RETRO_DEVICE_ID_JOYPAD_SELECT, // Select -> Select 0
RETRO_DEVICE_ID_JOYPAD_L3, // L-thumb -> L3 1
RETRO_DEVICE_ID_JOYPAD_R3, // R-thumb -> R3 2
RETRO_DEVICE_ID_JOYPAD_START, // Start -> Start 3
RETRO_DEVICE_ID_JOYPAD_UP, // Pad-Up -> Pad-Up 4
RETRO_DEVICE_ID_JOYPAD_RIGHT, // Pad-Down -> Pad-Down 5
RETRO_DEVICE_ID_JOYPAD_DOWN, // Pad-Left -> Pad-Left 6
RETRO_DEVICE_ID_JOYPAD_LEFT, // Pad-Right -> Pad-Right 7
RETRO_DEVICE_ID_JOYPAD_L2, // L-trigger -> L2 8
RETRO_DEVICE_ID_JOYPAD_R2, // R-trigger -> R2 9
RETRO_DEVICE_ID_JOYPAD_L, // L-shoulder -> L1 10
RETRO_DEVICE_ID_JOYPAD_R, // R-shoulder -> R1 11
RETRO_DEVICE_ID_JOYPAD_X, // X(top) -> Triangle 12
RETRO_DEVICE_ID_JOYPAD_A, // A(right) -> Circle 13
RETRO_DEVICE_ID_JOYPAD_B, // B(down) -> Cross 14
RETRO_DEVICE_ID_JOYPAD_Y, // Y(left) -> Square 15
#endif
};
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//------------------------------------------------------------------------------
// Local Functions
//------------------------------------------------------------------------------
// Return the normalized distance between the origin and the current
// (x,y) analog stick position
static float analog_radius(int x, int y) {
float fx = ((float)x) / 0x8000;
float fy = ((float)y) / 0x8000;
return sqrtf(fx * fx + fy * fy);
}
static void analog_scale(uint32_t *v, float s) {
*v *= s;
if (*v > 0x7fff) {
*v = 0x7fff;
}
}
static void SetInput(int port, const char *type, void *ptr)
{
FIO->SetInput(port, type, ptr);
}
//------------------------------------------------------------------------------
// Global Functions
//------------------------------------------------------------------------------
void input_init_env( retro_environment_t _environ_cb )
{
// Cache this
environ_cb = _environ_cb;
struct retro_input_descriptor desc[] =
{
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 1, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 2, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 3, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 4, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 4, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 5, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 5, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 6, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 6, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Cross" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Circle" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Triangle" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "Square" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "L1" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2, "L2" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L3, "L3" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "R1" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2, "R2" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R3, "R3" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select" },
{ 7, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" },
{ 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X, "Left Analog X" },
{ 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y, "Left Analog Y" },
{ 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X, "Right Analog X" },
{ 7, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y, "Right Analog Y" },
{ 0 },
};
environ_cb( RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc );
if ( environ_cb( RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble ) && log_cb )
log_cb(RETRO_LOG_INFO, "Rumble interface supported!\n");
}
void input_set_env( retro_environment_t environ_cb )
{
static const struct retro_controller_info ports[ MAX_CONTROLLERS + 1 ] =
{
{ input_device_types, INPUT_DEVICE_TYPES_COUNT },
{ input_device_types, INPUT_DEVICE_TYPES_COUNT },
{ input_device_types, INPUT_DEVICE_TYPES_COUNT },
{ input_device_types, INPUT_DEVICE_TYPES_COUNT },
{ input_device_types, INPUT_DEVICE_TYPES_COUNT },
{ input_device_types, INPUT_DEVICE_TYPES_COUNT },
{ input_device_types, INPUT_DEVICE_TYPES_COUNT },
{ input_device_types, INPUT_DEVICE_TYPES_COUNT },
{ 0 },
};
environ_cb( RETRO_ENVIRONMENT_SET_CONTROLLER_INFO, (void*)ports );
}
void input_init()
{
// Initialise to default and bind input buffers to PS1 emulation.
for ( unsigned i = 0; i < MAX_CONTROLLERS; ++i )
{
input_type[ i ] = RETRO_DEVICE_JOYPAD;
SetInput( i, "gamepad", (uint8*)&input_data[ i ] );
}
}
void input_set_fio( FrontIO* fio )
{
FIO = fio;
}
void input_init_calibration()
{
for ( unsigned i = 0; i < MAX_CONTROLLERS; i++ )
{
analog_calibration[ i ].left = 0.7f;
analog_calibration[ i ].right = 0.7f;
}
}
void input_enable_calibration( bool enable )
{
enable_analog_calibration = enable;
}
void input_set_player_count( unsigned _players )
{
players = _players;
}
unsigned input_get_player_count()
{
return players;
}
void input_update( retro_input_state_t input_state_cb )
{
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// For each player (logical controller)
for ( unsigned iplayer = 0; iplayer < players; ++iplayer )
{
INPUT_DATA* p_input = &(input_data[ iplayer ]);
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//
// -- Buttons
switch ( input_type[ iplayer ] )
{
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default:
p_input->buttons = 0;
break;
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case RETRO_DEVICE_JOYPAD:
case RETRO_DEVICE_PS_CONTROLLER:
case RETRO_DEVICE_PS_DUALSHOCK:
case RETRO_DEVICE_PS_ANALOG:
case RETRO_DEVICE_PS_ANALOG_JOYSTICK:
// Use fixed lookup table to map RetroPad inputs to PlayStation input bitmap.
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p_input->buttons = 0;
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for ( unsigned i = 0; i < INPUT_MAP_CONTROLLER_SIZE; i++ )
{
p_input->buttons |=
input_state_cb( iplayer, RETRO_DEVICE_JOYPAD, 0, input_map_controller[ i ] )
? ( 1 << i ) : 0;
}
break;
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case RETRO_DEVICE_PS_MOUSE:
// Simple two-button mouse.
{
p_input->u32[ 2 ] = 0;
if ( input_state_cb( iplayer, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT ) ) {
p_input->u32[ 2 ] |= ( 1 << 1 ); // Left
}
if ( input_state_cb( iplayer, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT ) ) {
p_input->u32[ 2 ] |= ( 1 << 0 ); // Right
}
}
// Relative input.
{
// mouse input
int dx_raw, dy_raw;
dx_raw = input_state_cb( iplayer, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_X );
dy_raw = input_state_cb( iplayer, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y );
p_input->u32[ 0 ] = dx_raw;
p_input->u32[ 1 ] = dy_raw;
}
break;
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}; // switch ( input_type[ iplayer ] )
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//
PlayStation Mouse support
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// -- Analog Sticks
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switch ( input_type[ iplayer ] )
{
case RETRO_DEVICE_PS_DUALSHOCK:
case RETRO_DEVICE_PS_ANALOG:
case RETRO_DEVICE_PS_ANALOG_JOYSTICK:
{
int analog_left_x = input_state_cb( iplayer, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT,
RETRO_DEVICE_ID_ANALOG_X);
int analog_left_y = input_state_cb( iplayer, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT,
RETRO_DEVICE_ID_ANALOG_Y);
int analog_right_x = input_state_cb( iplayer, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT,
RETRO_DEVICE_ID_ANALOG_X);
int analog_right_y = input_state_cb( iplayer, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT,
RETRO_DEVICE_ID_ANALOG_Y);
struct analog_calibration *calibration = &analog_calibration[ iplayer ];
uint32_t r_right = analog_right_x > 0 ? analog_right_x : 0;
uint32_t r_left = analog_right_x < 0 ? -analog_right_x : 0;
uint32_t r_down = analog_right_y > 0 ? analog_right_y : 0;
uint32_t r_up = analog_right_y < 0 ? -analog_right_y : 0;
uint32_t l_right = analog_left_x > 0 ? analog_left_x : 0;
uint32_t l_left = analog_left_x < 0 ? -analog_left_x : 0;
uint32_t l_down = analog_left_y > 0 ? analog_left_y : 0;
uint32_t l_up = analog_left_y < 0 ? -analog_left_y : 0;
if ( enable_analog_calibration )
{
// Compute the "radius" (distance from 0, 0) of the current
// stick position, using the same normalized values
float l = analog_radius(analog_left_x, analog_left_y);
float r = analog_radius(analog_right_x, analog_right_y);
// We recalibrate when we find a new max value for the sticks
if ( l > analog_calibration->left ) {
analog_calibration->left = l;
log_cb(RETRO_LOG_DEBUG, "Recalibrating left stick, radius: %f\n", l);
}
if ( r > analog_calibration->right ) {
analog_calibration->right = r;
log_cb(RETRO_LOG_DEBUG, "Recalibrating right stick, radius: %f\n", r);
}
// This represents the maximal value the DualShock sticks can
// reach, where 1.0 would be the maximum value along the X or
// Y axis. XXX I need to measure this value more precisely,
// it's a rough estimate at the moment.
static const float dualshock_analog_radius = 1.35;
// Now compute the scaling factor to apply to convert the
// emulator's controller coordinates to a native DualShock's
// ones
float l_scaling = dualshock_analog_radius / analog_calibration->left;
float r_scaling = dualshock_analog_radius / analog_calibration->right;
analog_scale(&l_left, l_scaling);
analog_scale(&l_right, l_scaling);
analog_scale(&l_up, l_scaling);
analog_scale(&l_down, l_scaling);
analog_scale(&r_left, r_scaling);
analog_scale(&r_right, r_scaling);
analog_scale(&r_up, r_scaling);
analog_scale(&r_down, r_scaling);
}
else
{
// Reset the calibration. Since we only increase the
// calibration coordinates we can start with a reasonably
// small value.
analog_calibration->left = 0.7;
analog_calibration->right = 0.7;
}
p_input->u32[1] = r_right;
p_input->u32[2] = r_left;
p_input->u32[3] = r_down;
p_input->u32[4] = r_up;
p_input->u32[5] = l_right;
p_input->u32[6] = l_left;
p_input->u32[7] = l_down;
p_input->u32[8] = l_up;
}
break;
}; // switch ( input_type[ iplayer ] )
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//
// -- Rumble
if ( rumble.set_rumble_state )
{
switch ( input_type[ iplayer ] )
{
case RETRO_DEVICE_PS_DUALSHOCK:
{
// Appears to be correct.
rumble.set_rumble_state( iplayer, RETRO_RUMBLE_WEAK, p_input->u8[9 * 4] * 0x101);
rumble.set_rumble_state( iplayer, RETRO_RUMBLE_STRONG, p_input->u8[9 * 4 + 1] * 0x101);
/*log_cb( RETRO_LOG_INFO, "Controller %u: Rumble: %d %d\n",
iplayer,
p_input->u8[9 * 4] * 0x101,
p_input->u8[9 * 4 + 1] * 0x101
);*/
}
break;
}; // switch ( input_type[ iplayer ] )
}; // can we rumble?
}; // for each player
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}
//------------------------------------------------------------------------------
// Libretro Interface
//------------------------------------------------------------------------------
void retro_set_controller_port_device( unsigned in_port, unsigned device )
{
if ( in_port < MAX_CONTROLLERS )
{
// Store input type
input_type[ in_port ] = device;
switch ( device )
{
case RETRO_DEVICE_NONE:
log_cb( RETRO_LOG_INFO, "Controller %u: Unplugged\n", (in_port+1) );
SetInput( in_port, "none", (uint8*)&input_data[ in_port ] );
break;
case RETRO_DEVICE_JOYPAD:
case RETRO_DEVICE_PS_CONTROLLER:
log_cb( RETRO_LOG_INFO, "Controller %u: PlayStation Controller\n", (in_port+1) );
SetInput( in_port, "gamepad", (uint8*)&input_data[ in_port ] );
break;
case RETRO_DEVICE_PS_DUALSHOCK:
log_cb( RETRO_LOG_INFO, "Controller %u: DualShock\n", (in_port+1) );
SetInput( in_port, "dualshock", (uint8*)&input_data[ in_port ] );
break;
case RETRO_DEVICE_PS_ANALOG:
log_cb( RETRO_LOG_INFO, "Controller %u: Analog Controller\n", (in_port+1) );
SetInput( in_port, "dualanalog", (uint8*)&input_data[ in_port ] );
break;
case RETRO_DEVICE_PS_ANALOG_JOYSTICK:
log_cb( RETRO_LOG_INFO, "Controller %u: Analog Joystick\n", (in_port+1) );
SetInput( in_port, "analogjoy", (uint8*)&input_data[ in_port ] );
break;
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case RETRO_DEVICE_PS_MOUSE:
log_cb( RETRO_LOG_INFO, "Controller %u: Mouse\n", (in_port+1) );
SetInput( in_port, "mouse", (uint8*)&input_data[ in_port ] );
break;
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default:
log_cb( RETRO_LOG_WARN, "Controller %u: Unsupported Device (%u)\n", (in_port+1), device );
SetInput( in_port, "none", (uint8*)&input_data[ in_port ] );
break;
}; // switch ( device )
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// Clear rumble.
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if ( rumble.set_rumble_state )
{
rumble.set_rumble_state(in_port, RETRO_RUMBLE_STRONG, 0);
rumble.set_rumble_state(in_port, RETRO_RUMBLE_WEAK, 0);
}
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input_data[ in_port ].u32[ 9 ] = 0;
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}; // valid port?
}
//==============================================================================
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