First pass on the new SDL sensor API

2018-08-21 12:11:34 -07:00 · 2018-08-21 12:11:34 -07:00 · 7c3040e08a
commit 7c3040e08a
parent c2791fc60d
26 changed files with 1407 additions and 3 deletions
--- a/test/testsensor.c
+++ b/test/testsensor.c
@ -0,0 +1,117 @@
+/*
+  Copyright (C) 1997-2018 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.
+*/
+
+/* Simple test of the SDL sensor code */
+
+#include "SDL.h"
+
+static const char *GetSensorTypeString(SDL_SensorType type)
+{
+    static char unknown_type[64];
+
+    switch (type)
+    {
+    case SDL_SENSOR_INVALID:
+        return "SDL_SENSOR_INVALID";
+    case SDL_SENSOR_UNKNOWN:
+        return "SDL_SENSOR_UNKNOWN";
+    case SDL_SENSOR_ACCEL:
+        return "SDL_SENSOR_ACCEL";
+    case SDL_SENSOR_GYRO:
+        return "SDL_SENSOR_GYRO";
+    default:
+        SDL_snprintf(unknown_type, sizeof(unknown_type), "UNKNOWN (%d)", type);
+        return unknown_type;
+    }
+}
+
+static void HandleSensorEvent(SDL_SensorEvent *event)
+{
+    SDL_Sensor *sensor = SDL_SensorFromInstanceID(event->which);
+    if (!sensor) {
+        SDL_Log("Couldn't get sensor for sensor event\n");
+        return;
+    }
+
+    switch (SDL_SensorGetType(sensor)) {
+    case SDL_SENSOR_ACCEL:
+        SDL_Log("Accelerometer update: %.2f, %.2f, %.2f\n", event->data[0], event->data[1], event->data[2]);
+        break;
+    case SDL_SENSOR_GYRO:
+        SDL_Log("Gyro update: %.2f, %.2f, %.2f\n", event->data[0], event->data[1], event->data[2]);
+        break;
+    default:
+        SDL_Log("Sensor update for sensor type %s\n", GetSensorTypeString(SDL_SensorGetType(sensor)));
+        break;
+    }
+}
+
+int
+main(int argc, char **argv)
+{
+    int i;
+    int num_sensors, num_opened;
+
+    /* Load the SDL library */
+    if (SDL_Init(SDL_INIT_SENSOR) < 0) {
+        SDL_Log("Couldn't initialize SDL: %s\n", SDL_GetError());
+        return (1);
+    }
+
+    num_sensors = SDL_NumSensors();
+    num_opened = 0;
+
+    SDL_Log("There are %d sensors available\n", num_sensors);
+    for (i = 0; i < num_sensors; ++i) {
+        SDL_Log("Sensor %d: %s, type %s, platform type %d\n",
+            SDL_SensorGetDeviceInstanceID(i),
+            SDL_SensorGetDeviceName(i),
+            GetSensorTypeString(SDL_SensorGetDeviceType(i)),
+            SDL_SensorGetDeviceNonPortableType(i));
+
+        if (SDL_SensorGetDeviceType(i) != SDL_SENSOR_UNKNOWN) {
+            SDL_Sensor *sensor = SDL_SensorOpen(i);
+            if (sensor == NULL) {
+                SDL_Log("Couldn't open sensor %d: %s\n", SDL_SensorGetDeviceInstanceID(i), SDL_GetError());
+            } else {
+                ++num_opened;
+            }
+        }
+    }
+    SDL_Log("Opened %d sensors\n", num_opened);
+
+    if (num_opened > 0) {
+        SDL_bool done = SDL_FALSE;
+        SDL_Event event;
+
+        SDL_CreateWindow("Sensor Test", 0, 0, 0, 0, SDL_WINDOW_FULLSCREEN_DESKTOP);
+        while (!done) {
+            while (SDL_PollEvent(&event) > 0) {
+                switch (event.type) {
+                case SDL_SENSORUPDATE:
+                    HandleSensorEvent(&event.sensor);
+                    break;
+                case SDL_MOUSEBUTTONUP:
+                case SDL_KEYUP:
+                case SDL_QUIT:
+                    done = SDL_TRUE;
+                    break;
+                default:
+                    break;
+                }
+            }
+        }
+    }
+
+    SDL_Quit();
+    return (0);
+}