Branch
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212
/*
Simple DirectMedia Layer
Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if defined(SDL_SENSOR_VITA)
#include "SDL_error.h"
#include "SDL_sensor.h"
#include "SDL_vitasensor.h"
#include "../SDL_syssensor.h"
#include <psp2/motion.h>
#if !defined(SCE_MOTION_MAX_NUM_STATES)
#define SCE_MOTION_MAX_NUM_STATES 64
#endif
typedef struct
{
SDL_SensorType type;
SDL_SensorID instance_id;
} SDL_VitaSensor;
static SDL_VitaSensor *SDL_sensors;
static int SDL_sensors_count;
static int SDL_VITA_SensorInit(void)
{
sceMotionReset();
sceMotionStartSampling();
// not sure if these are needed, we are reading unfiltered state
sceMotionSetAngleThreshold(0);
sceMotionSetDeadband(SCE_FALSE);
sceMotionSetTiltCorrection(SCE_FALSE);
SDL_sensors_count = 2;
SDL_sensors = (SDL_VitaSensor *)SDL_calloc(SDL_sensors_count, sizeof(*SDL_sensors));
if (SDL_sensors == NULL) {
return SDL_OutOfMemory();
}
SDL_sensors[0].type = SDL_SENSOR_ACCEL;
SDL_sensors[0].instance_id = SDL_GetNextSensorInstanceID();
SDL_sensors[1].type = SDL_SENSOR_GYRO;
SDL_sensors[1].instance_id = SDL_GetNextSensorInstanceID();
return 0;
}
static int SDL_VITA_SensorGetCount(void)
{
return SDL_sensors_count;
}
static void SDL_VITA_SensorDetect(void)
{
}
static const char *SDL_VITA_SensorGetDeviceName(int device_index)
{
if (device_index < SDL_sensors_count) {
switch (SDL_sensors[device_index].type) {
case SDL_SENSOR_ACCEL:
return "Accelerometer";
case SDL_SENSOR_GYRO:
return "Gyro";
default:
return "Unknown";
}
}
return NULL;
}
static SDL_SensorType SDL_VITA_SensorGetDeviceType(int device_index)
{
if (device_index < SDL_sensors_count) {
return SDL_sensors[device_index].type;
}
return SDL_SENSOR_INVALID;
}
static int SDL_VITA_SensorGetDeviceNonPortableType(int device_index)
{
if (device_index < SDL_sensors_count) {
return SDL_sensors[device_index].type;
}
return -1;
}
static SDL_SensorID SDL_VITA_SensorGetDeviceInstanceID(int device_index)
{
if (device_index < SDL_sensors_count) {
return SDL_sensors[device_index].instance_id;
}
return -1;
}
static int SDL_VITA_SensorOpen(SDL_Sensor *sensor, int device_index)
{
struct sensor_hwdata *hwdata;
hwdata = (struct sensor_hwdata *)SDL_calloc(1, sizeof(*hwdata));
if (hwdata == NULL) {
return SDL_OutOfMemory();
}
sensor->hwdata = hwdata;
return 0;
}
static void SDL_VITA_SensorUpdate(SDL_Sensor *sensor)
{
int err = 0;
SceMotionSensorState motionState[SCE_MOTION_MAX_NUM_STATES];
SDL_memset(motionState, 0, sizeof(motionState));
err = sceMotionGetSensorState(motionState, SCE_MOTION_MAX_NUM_STATES);
if (err != 0) {
return;
}
for (int i = 0; i < SCE_MOTION_MAX_NUM_STATES; i++) {
if (sensor->hwdata->counter < motionState[i].counter) {
unsigned int timestamp = motionState[i].timestamp;
sensor->hwdata->counter = motionState[i].counter;
if (sensor->hwdata->timestamp_us) {
unsigned int delta;
if (sensor->hwdata->last_timestamp > timestamp) {
SDL_COMPILE_TIME_ASSERT(timestamp, sizeof(timestamp) == sizeof(Uint32));
delta = (SDL_MAX_UINT32 - sensor->hwdata->last_timestamp + timestamp + 1);
} else {
delta = (timestamp - sensor->hwdata->last_timestamp);
}
sensor->hwdata->timestamp_us += delta;
} else {
sensor->hwdata->timestamp_us = timestamp;
}
sensor->hwdata->last_timestamp = timestamp;
switch (sensor->type) {
case SDL_SENSOR_ACCEL:
{
float data[3];
data[0] = motionState[i].accelerometer.x * SDL_STANDARD_GRAVITY;
data[1] = motionState[i].accelerometer.y * SDL_STANDARD_GRAVITY;
data[2] = motionState[i].accelerometer.z * SDL_STANDARD_GRAVITY;
SDL_PrivateSensorUpdate(sensor, sensor->hwdata->timestamp_us, data, SDL_arraysize(data));
} break;
case SDL_SENSOR_GYRO:
{
float data[3];
data[0] = motionState[i].gyro.x;
data[1] = motionState[i].gyro.y;
data[2] = motionState[i].gyro.z;
SDL_PrivateSensorUpdate(sensor, sensor->hwdata->timestamp_us, data, SDL_arraysize(data));
} break;
default:
break;
}
}
}
}
static void SDL_VITA_SensorClose(SDL_Sensor *sensor)
{
}
static void SDL_VITA_SensorQuit(void)
{
sceMotionStopSampling();
}
SDL_SensorDriver SDL_VITA_SensorDriver = {
SDL_VITA_SensorInit,
SDL_VITA_SensorGetCount,
SDL_VITA_SensorDetect,
SDL_VITA_SensorGetDeviceName,
SDL_VITA_SensorGetDeviceType,
SDL_VITA_SensorGetDeviceNonPortableType,
SDL_VITA_SensorGetDeviceInstanceID,
SDL_VITA_SensorOpen,
SDL_VITA_SensorUpdate,
SDL_VITA_SensorClose,
SDL_VITA_SensorQuit,
};
#endif /* SDL_SENSOR_VITA */
/* vi: set ts=4 sw=4 expandtab: */