--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/controller_info.c	Sun Jul 22 17:48:46 2018 -0700
@@ -0,0 +1,125 @@
+#include <string.h>
+#include "render_sdl.h"
+#include "controller_info.h"
+
+typedef struct {
+	char const      *name;
+	controller_info info;
+} heuristic;
+
+heuristic heuristics[] = {
+	//TODO: Add more heuristic rules
+	{"DualShock 4", {.type = TYPE_PSX, .subtype = SUBTYPE_PS4}},
+	{"PS4", {.type = TYPE_PSX, .subtype = SUBTYPE_PS4}},
+	{"PS3", {.type = TYPE_PSX, .subtype = SUBTYPE_PS3}},
+	{"X360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
+	{"Xbox 360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
+	{"X-box 360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
+	{"Xbox One", {.type = TYPE_XBOX, .subtype = SUBTYPE_XBONE}},
+	{"X-box One", {.type = TYPE_XBOX, .subtype = SUBTYPE_XBONE}},
+	{"WiiU", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_WIIU}},
+	{"Wii U", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_WIIU}},
+	{"Nintendo Switch", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_SWITCH}},
+	{"Saturn", {.type = TYPE_SEGA, .subtype = SUBTYPE_SATURN}}
+};
+const uint32_t num_heuristics = sizeof(heuristics)/sizeof(*heuristics);
+
+controller_info get_controller_info(int joystick)
+{
+	SDL_GameController *control = render_get_controller(joystick);
+	if (!control) {
+		return (controller_info) {
+			.type = TYPE_UNKNOWN,
+			.subtype = SUBTYPE_UNKNOWN,
+			.variant = VARIANT_NORMAL,
+			.name = SDL_JoystickName(render_get_joystick(joystick))
+		};
+	}
+	const char *name = SDL_GameControllerName(control);
+	SDL_GameControllerClose(control);
+	for (uint32_t i = 0; i < num_heuristics; i++)
+	{
+		if (strstr(name, heuristics[i].name)) {
+			controller_info res = heuristics[i].info;
+			res.name = name;
+			return res;
+		}
+	}
+	//default to a 360
+	return (controller_info){
+		.type = TYPE_GENERIC_MAPPING,
+		.subtype = SUBTYPE_UNKNOWN,
+		.variant = VARIANT_NORMAL,
+		.name = name
+	};
+}
+
+char const *labels_xbox[] = {
+	"A", "B", "X", "Y", "Back", NULL, "Start", "Click", "Click", "White", "Black", "LT", "RT"
+};
+char const *labels_360[] = {
+	"A", "B", "X", "Y", "Back", "Guide", "Start", "Click", "Click", "LB", "RB", "LT", "RT"
+};
+static char const *labels_xbone[] = {
+	"A", "B", "X", "Y", "View", "Guide", "Menu", "Click", "Click", "LB", "RB", "LT", "RT"
+};
+static char const *labels_ps3[] = {
+	"cross", "circle", "square", "triangle", "Select", "Guide", "Start", "L3", "R3", "L1", "R1", "L2", "R2"
+};
+static char const *labels_ps4[] = {
+	"cross", "circle", "square", "triangle", "Share", "Guide", "Options", "L3", "R3", "L1", "R1", "L2", "R2"
+};
+static char const *labels_nintendo[] = {
+	"B", "A", "Y", "X", "-", "Home", "+", "Click", "Click", "L", "R", "ZL", "ZR"
+};
+static char const *labels_genesis[] = {
+	"A", "B", "X", "Y", NULL, NULL, "Start", NULL, NULL, "Z", "C", NULL, "Mode"
+};
+static char const *labels_saturn[] = {
+	"A", "B", "X", "Y", NULL, NULL, "Start", NULL, NULL, "Z", "C", "LT", "RT"
+};
+
+static const char** label_source(controller_info *info)
+{
+	if (info->type == TYPE_UNKNOWN || info->type == TYPE_GENERIC_MAPPING || info->subtype ==SUBTYPE_X360) {
+		return labels_360;
+	} else if (info->type == TYPE_NINTENDO) {
+		return labels_nintendo;
+	} else if (info->type == TYPE_PSX) {
+		if (info->subtype == SUBTYPE_PS4) {
+			return labels_ps4;
+		} else {
+			return labels_ps3;
+		}
+	} else if (info->type == TYPE_XBOX) {
+		if (info->subtype == SUBTYPE_XBONE) {
+			return labels_xbone;
+		} else {
+			return labels_xbox;
+		}
+	} else {
+		if (info->subtype == SUBTYPE_GENESIS) {
+			return labels_genesis;
+		} else {
+			return labels_saturn;
+		}
+	}
+}
+
+const char *get_button_label(controller_info *info, int button)
+{
+	return label_source(info)[button];
+}
+
+static char const *axis_labels[] = {
+	"Left X", "Left Y", "Right X", "Right Y"
+};
+const char *get_axis_label(controller_info *info, int axis)
+{
+	if (axis < SDL_CONTROLLER_AXIS_TRIGGERLEFT) {
+		return axis_labels[axis];
+	} else {
+		return label_source(info)[axis - SDL_CONTROLLER_AXIS_TRIGGERLEFT + SDL_CONTROLLER_BUTTON_RIGHTSHOULDER + 1];
+	}
+}
+