1 files changed, 83 insertions, 0 deletions
diff --git a/simple.c b/simple.c
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+++ b/simple.c
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+/*
+ * OpenHMD - Free and Open Source API and drivers for immersive technology.
+ * Copyright (C) 2013 Fredrik Hultin.
+ * Copyright (C) 2013 Jakob Bornecrantz.
+ * Distributed under the Boost 1.0 licence, see LICENSE for full text.
+ */
+
+/* Simple Test */
+
+#include <openhmd.h>
+#include <stdio.h>
+
+void ohmd_sleep(double);
+
+// gets float values from the device and prints them
+void print_infof(ohmd_device* hmd, const char* name, int len, ohmd_float_value val)
+{
+	float f[len];
+	ohmd_device_getf(hmd, val, f);
+	printf("%-20s", name);
+	for(int i = 0; i < len; i++)
+		printf("%f ", f[i]);
+	printf("\n");
+}
+
+int main(int argc, char** argv)
+{
+	ohmd_context* ctx = ohmd_ctx_create();
+
+	// Probe for devices
+	int num_devices = ohmd_ctx_probe(ctx);
+	if(num_devices < 0){
+		printf("failed to probe devices: %s\n", ohmd_ctx_get_error(ctx));
+		return -1;
+	}
+
+	printf("num devices: %d\n\n", num_devices);
+
+	// Print device information
+	for(int i = 0; i < num_devices; i++){
+		printf("device %d\n", i);
+		printf("  vendor:  %s\n", ohmd_list_gets(ctx, i, OHMD_VENDOR));
+		printf("  product: %s\n", ohmd_list_gets(ctx, i, OHMD_PRODUCT));
+		printf("  path:    %s\n\n", ohmd_list_gets(ctx, i, OHMD_PATH));
+	}
+
+	// Open default device (0)
+	ohmd_device* hmd = ohmd_list_open_device(ctx, 0);
+	
+	if(!hmd){
+		printf("failed to open device: %s\n", ohmd_ctx_get_error(ctx));
+		return -1;
+	}
+
+	// Print hardware information for the opened device
+	int ivals[2];
+	ohmd_device_geti(hmd, OHMD_SCREEN_HORIZONTAL_RESOLUTION, ivals);
+	ohmd_device_geti(hmd, OHMD_SCREEN_VERTICAL_RESOLUTION, ivals + 1);
+	printf("resolution:         %i x %i\n", ivals[0], ivals[1]);
+
+	print_infof(hmd, "hsize:",            1, OHMD_SCREEN_HORIZONTAL_SIZE);
+	print_infof(hmd, "vsize:",            1, OHMD_SCREEN_VERTICAL_SIZE);
+	print_infof(hmd, "lens separation:",  1, OHMD_LENS_HORIZONTAL_SEPARATION);
+	print_infof(hmd, "lens vcenter:",     1, OHMD_LENS_VERTICAL_POSITION);
+	print_infof(hmd, "left eye fov:",     1, OHMD_LEFT_EYE_FOV);
+	print_infof(hmd, "right eye fov:",    1, OHMD_RIGHT_EYE_FOV);
+	print_infof(hmd, "left eye aspect:",  1, OHMD_LEFT_EYE_ASPECT_RATIO);
+	print_infof(hmd, "right eye aspect:", 1, OHMD_RIGHT_EYE_ASPECT_RATIO);
+	print_infof(hmd, "distortion k:",     6, OHMD_DISTORTION_K);
+
+	printf("\n");
+
+	// Ask for n rotation quaternions
+	for(int i = 0; i < 10000; i++){
+		ohmd_ctx_update(ctx);
+		print_infof(hmd, "rotation quat:", 4, OHMD_ROTATION_QUAT);
+		ohmd_sleep(.01);
+	}
+
+	ohmd_ctx_destroy(ctx);
+	
+	return 0;
+}