1 files changed, 2972 insertions, 0 deletions

diff --git a/src/contrib/SDL-3.2.20/test/gamepadutils.c b/src/contrib/SDL-3.2.20/test/gamepadutils.c
new file mode 100644
index 0000000..910887f
--- /dev/null
+++ b/src/contrib/SDL-3.2.20/test/gamepadutils.c
@@ -0,0 +1,2972 @@
+/*
+  Copyright (C) 1997-2025 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.
+*/
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_test_font.h>
+
+#include "gamepadutils.h"
+#include "gamepad_front.h"
+#include "gamepad_back.h"
+#include "gamepad_face_abxy.h"
+#include "gamepad_face_bayx.h"
+#include "gamepad_face_sony.h"
+#include "gamepad_battery.h"
+#include "gamepad_battery_wired.h"
+#include "gamepad_touchpad.h"
+#include "gamepad_button.h"
+#include "gamepad_button_small.h"
+#include "gamepad_axis.h"
+#include "gamepad_axis_arrow.h"
+#include "gamepad_button_background.h"
+#include "gamepad_wired.h"
+#include "gamepad_wireless.h"
+
+
+/* This is indexed by gamepad element */
+static const struct
+{
+    int x;
+    int y;
+} button_positions[] = {
+    { 413, 190 }, /* SDL_GAMEPAD_BUTTON_SOUTH */
+    { 456, 156 }, /* SDL_GAMEPAD_BUTTON_EAST */
+    { 372, 159 }, /* SDL_GAMEPAD_BUTTON_WEST */
+    { 415, 127 }, /* SDL_GAMEPAD_BUTTON_NORTH */
+    { 199, 157 }, /* SDL_GAMEPAD_BUTTON_BACK */
+    { 257, 153 }, /* SDL_GAMEPAD_BUTTON_GUIDE */
+    { 314, 157 }, /* SDL_GAMEPAD_BUTTON_START */
+    {  98, 177 }, /* SDL_GAMEPAD_BUTTON_LEFT_STICK */
+    { 331, 254 }, /* SDL_GAMEPAD_BUTTON_RIGHT_STICK */
+    { 102, 65 },  /* SDL_GAMEPAD_BUTTON_LEFT_SHOULDER */
+    { 421, 61 },  /* SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER */
+    { 179, 213 }, /* SDL_GAMEPAD_BUTTON_DPAD_UP */
+    { 179, 274 }, /* SDL_GAMEPAD_BUTTON_DPAD_DOWN */
+    { 141, 242 }, /* SDL_GAMEPAD_BUTTON_DPAD_LEFT */
+    { 211, 242 }, /* SDL_GAMEPAD_BUTTON_DPAD_RIGHT */
+    { 257, 199 }, /* SDL_GAMEPAD_BUTTON_MISC1 */
+    { 157, 160 }, /* SDL_GAMEPAD_BUTTON_RIGHT_PADDLE1 */
+    { 355, 160 }, /* SDL_GAMEPAD_BUTTON_LEFT_PADDLE1 */
+    { 157, 200 }, /* SDL_GAMEPAD_BUTTON_RIGHT_PADDLE2 */
+    { 355, 200 }, /* SDL_GAMEPAD_BUTTON_LEFT_PADDLE2 */
+};
+
+/* This is indexed by gamepad element */
+static const struct
+{
+    int x;
+    int y;
+    double angle;
+} axis_positions[] = {
+    { 99, 178, 270.0 },  /* SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_NEGATIVE */
+    { 99, 178, 90.0 },   /* SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_POSITIVE */
+    { 99, 178, 0.0 },    /* SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_NEGATIVE */
+    { 99, 178, 180.0 },  /* SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_POSITIVE */
+    { 331, 256, 270.0 }, /* SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_NEGATIVE */
+    { 331, 256, 90.0 },  /* SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_POSITIVE */
+    { 331, 256, 0.0 },   /* SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_NEGATIVE */
+    { 331, 256, 180.0 }, /* SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_POSITIVE */
+    { 116, 5, 180.0 },   /* SDL_GAMEPAD_ELEMENT_AXIS_LEFT_TRIGGER */
+    { 400, 5, 180.0 },   /* SDL_GAMEPAD_ELEMENT_AXIS_RIGHT_TRIGGER */
+};
+
+static SDL_FRect touchpad_area = {
+    148.0f, 20.0f, 216.0f, 118.0f
+};
+
+typedef struct
+{
+    bool down;
+    float x;
+    float y;
+    float pressure;
+} GamepadTouchpadFinger;
+
+struct GamepadImage
+{
+    SDL_Renderer *renderer;
+    SDL_Texture *front_texture;
+    SDL_Texture *back_texture;
+    SDL_Texture *face_abxy_texture;
+    SDL_Texture *face_bayx_texture;
+    SDL_Texture *face_sony_texture;
+    SDL_Texture *connection_texture[2];
+    SDL_Texture *battery_texture[2];
+    SDL_Texture *touchpad_texture;
+    SDL_Texture *button_texture;
+    SDL_Texture *axis_texture;
+    float gamepad_width;
+    float gamepad_height;
+    float face_width;
+    float face_height;
+    float connection_width;
+    float connection_height;
+    float battery_width;
+    float battery_height;
+    float touchpad_width;
+    float touchpad_height;
+    float button_width;
+    float button_height;
+    float axis_width;
+    float axis_height;
+
+    float x;
+    float y;
+    bool showing_front;
+    bool showing_touchpad;
+    SDL_GamepadType type;
+    ControllerDisplayMode display_mode;
+
+    bool elements[SDL_GAMEPAD_ELEMENT_MAX];
+
+    SDL_JoystickConnectionState connection_state;
+    SDL_PowerState battery_state;
+    int battery_percent;
+
+    int num_fingers;
+    GamepadTouchpadFinger *fingers;
+};
+
+static SDL_Texture *CreateTexture(SDL_Renderer *renderer, unsigned char *data, unsigned int len)
+{
+    SDL_Texture *texture = NULL;
+    SDL_Surface *surface;
+    SDL_IOStream *src = SDL_IOFromConstMem(data, len);
+    if (src) {
+        surface = SDL_LoadBMP_IO(src, true);
+        if (surface) {
+            texture = SDL_CreateTextureFromSurface(renderer, surface);
+            SDL_DestroySurface(surface);
+        }
+    }
+    return texture;
+}
+
+GamepadImage *CreateGamepadImage(SDL_Renderer *renderer)
+{
+    GamepadImage *ctx = SDL_calloc(1, sizeof(*ctx));
+    if (ctx) {
+        ctx->renderer = renderer;
+        ctx->front_texture = CreateTexture(renderer, gamepad_front_bmp, gamepad_front_bmp_len);
+        ctx->back_texture = CreateTexture(renderer, gamepad_back_bmp, gamepad_back_bmp_len);
+        SDL_GetTextureSize(ctx->front_texture, &ctx->gamepad_width, &ctx->gamepad_height);
+
+        ctx->face_abxy_texture = CreateTexture(renderer, gamepad_face_abxy_bmp, gamepad_face_abxy_bmp_len);
+        ctx->face_bayx_texture = CreateTexture(renderer, gamepad_face_bayx_bmp, gamepad_face_bayx_bmp_len);
+        ctx->face_sony_texture = CreateTexture(renderer, gamepad_face_sony_bmp, gamepad_face_sony_bmp_len);
+        SDL_GetTextureSize(ctx->face_abxy_texture, &ctx->face_width, &ctx->face_height);
+
+        ctx->connection_texture[0] = CreateTexture(renderer, gamepad_wired_bmp, gamepad_wired_bmp_len);
+        ctx->connection_texture[1] = CreateTexture(renderer, gamepad_wireless_bmp, gamepad_wireless_bmp_len);
+        SDL_GetTextureSize(ctx->connection_texture[0], &ctx->connection_width, &ctx->connection_height);
+
+        ctx->battery_texture[0] = CreateTexture(renderer, gamepad_battery_bmp, gamepad_battery_bmp_len);
+        ctx->battery_texture[1] = CreateTexture(renderer, gamepad_battery_wired_bmp, gamepad_battery_wired_bmp_len);
+        SDL_GetTextureSize(ctx->battery_texture[0], &ctx->battery_width, &ctx->battery_height);
+
+        ctx->touchpad_texture = CreateTexture(renderer, gamepad_touchpad_bmp, gamepad_touchpad_bmp_len);
+        SDL_GetTextureSize(ctx->touchpad_texture, &ctx->touchpad_width, &ctx->touchpad_height);
+
+        ctx->button_texture = CreateTexture(renderer, gamepad_button_bmp, gamepad_button_bmp_len);
+        SDL_GetTextureSize(ctx->button_texture, &ctx->button_width, &ctx->button_height);
+        SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
+
+        ctx->axis_texture = CreateTexture(renderer, gamepad_axis_bmp, gamepad_axis_bmp_len);
+        SDL_GetTextureSize(ctx->axis_texture, &ctx->axis_width, &ctx->axis_height);
+        SDL_SetTextureColorMod(ctx->axis_texture, 10, 255, 21);
+
+        ctx->showing_front = true;
+    }
+    return ctx;
+}
+
+void SetGamepadImagePosition(GamepadImage *ctx, float x, float y)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->x = x;
+    ctx->y = y;
+}
+
+void GetGamepadImageArea(GamepadImage *ctx, SDL_FRect *area)
+{
+    if (!ctx) {
+        SDL_zerop(area);
+        return;
+    }
+
+    area->x = ctx->x;
+    area->y = ctx->y;
+    area->w = ctx->gamepad_width;
+    area->h = ctx->gamepad_height;
+    if (ctx->showing_touchpad) {
+        area->h += ctx->touchpad_height;
+    }
+}
+
+void GetGamepadTouchpadArea(GamepadImage *ctx, SDL_FRect *area)
+{
+    if (!ctx) {
+        SDL_zerop(area);
+        return;
+    }
+
+    area->x = ctx->x + (ctx->gamepad_width - ctx->touchpad_width) / 2 + touchpad_area.x;
+    area->y = ctx->y + ctx->gamepad_height + touchpad_area.y;
+    area->w = touchpad_area.w;
+    area->h = touchpad_area.h;
+}
+
+void SetGamepadImageShowingFront(GamepadImage *ctx, bool showing_front)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->showing_front = showing_front;
+}
+
+SDL_GamepadType GetGamepadImageType(GamepadImage *ctx)
+{
+    if (!ctx) {
+        return SDL_GAMEPAD_TYPE_UNKNOWN;
+    }
+
+    return ctx->type;
+}
+
+void SetGamepadImageDisplayMode(GamepadImage *ctx, ControllerDisplayMode display_mode)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->display_mode = display_mode;
+}
+
+float GetGamepadImageButtonWidth(GamepadImage *ctx)
+{
+    if (!ctx) {
+        return 0;
+    }
+
+    return ctx->button_width;
+}
+
+float GetGamepadImageButtonHeight(GamepadImage *ctx)
+{
+    if (!ctx) {
+        return 0;
+    }
+
+    return ctx->button_height;
+}
+
+float GetGamepadImageAxisWidth(GamepadImage *ctx)
+{
+    if (!ctx) {
+        return 0;
+    }
+
+    return ctx->axis_width;
+}
+
+float GetGamepadImageAxisHeight(GamepadImage *ctx)
+{
+    if (!ctx) {
+        return 0;
+    }
+
+    return ctx->axis_height;
+}
+
+int GetGamepadImageElementAt(GamepadImage *ctx, float x, float y)
+{
+    SDL_FPoint point;
+    int i;
+
+    if (!ctx) {
+        return SDL_GAMEPAD_ELEMENT_INVALID;
+    }
+
+    point.x = x;
+    point.y = y;
+
+    if (ctx->showing_front) {
+        for (i = 0; i < SDL_arraysize(axis_positions); ++i) {
+            const int element = SDL_GAMEPAD_BUTTON_COUNT + i;
+            SDL_FRect rect;
+
+            if (element == SDL_GAMEPAD_ELEMENT_AXIS_LEFT_TRIGGER ||
+                element == SDL_GAMEPAD_ELEMENT_AXIS_RIGHT_TRIGGER) {
+                rect.w = ctx->axis_width;
+                rect.h = ctx->axis_height;
+                rect.x = ctx->x + axis_positions[i].x - rect.w / 2;
+                rect.y = ctx->y + axis_positions[i].y - rect.h / 2;
+                if (SDL_PointInRectFloat(&point, &rect)) {
+                    if (element == SDL_GAMEPAD_ELEMENT_AXIS_LEFT_TRIGGER) {
+                        return SDL_GAMEPAD_ELEMENT_AXIS_LEFT_TRIGGER;
+                    } else {
+                        return SDL_GAMEPAD_ELEMENT_AXIS_RIGHT_TRIGGER;
+                    }
+                }
+            } else if (element == SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_POSITIVE) {
+                rect.w = ctx->button_width * 2.0f;
+                rect.h = ctx->button_height * 2.0f;
+                rect.x = ctx->x + button_positions[SDL_GAMEPAD_BUTTON_LEFT_STICK].x - rect.w / 2;
+                rect.y = ctx->y + button_positions[SDL_GAMEPAD_BUTTON_LEFT_STICK].y - rect.h / 2;
+                if (SDL_PointInRectFloat(&point, &rect)) {
+                    float delta_x, delta_y;
+                    float delta_squared;
+                    float thumbstick_radius = ctx->button_width * 0.1f;
+
+                    delta_x = (x - (ctx->x + button_positions[SDL_GAMEPAD_BUTTON_LEFT_STICK].x));
+                    delta_y = (y - (ctx->y + button_positions[SDL_GAMEPAD_BUTTON_LEFT_STICK].y));
+                    delta_squared = (delta_x * delta_x) + (delta_y * delta_y);
+                    if (delta_squared > (thumbstick_radius * thumbstick_radius)) {
+                        float angle = SDL_atan2f(delta_y, delta_x) + SDL_PI_F;
+                        if (angle < SDL_PI_F * 0.25f) {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_NEGATIVE;
+                        } else if (angle < SDL_PI_F * 0.75f) {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_NEGATIVE;
+                        } else if (angle < SDL_PI_F * 1.25f) {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_POSITIVE;
+                        } else if (angle < SDL_PI_F * 1.75f) {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_POSITIVE;
+                        } else {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_NEGATIVE;
+                        }
+                    }
+                }
+            } else if (element == SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_POSITIVE) {
+                rect.w = ctx->button_width * 2.0f;
+                rect.h = ctx->button_height * 2.0f;
+                rect.x = ctx->x + button_positions[SDL_GAMEPAD_BUTTON_RIGHT_STICK].x - rect.w / 2;
+                rect.y = ctx->y + button_positions[SDL_GAMEPAD_BUTTON_RIGHT_STICK].y - rect.h / 2;
+                if (SDL_PointInRectFloat(&point, &rect)) {
+                    float delta_x, delta_y;
+                    float delta_squared;
+                    float thumbstick_radius = ctx->button_width * 0.1f;
+
+                    delta_x = (x - (ctx->x + button_positions[SDL_GAMEPAD_BUTTON_RIGHT_STICK].x));
+                    delta_y = (y - (ctx->y + button_positions[SDL_GAMEPAD_BUTTON_RIGHT_STICK].y));
+                    delta_squared = (delta_x * delta_x) + (delta_y * delta_y);
+                    if (delta_squared > (thumbstick_radius * thumbstick_radius)) {
+                        float angle = SDL_atan2f(delta_y, delta_x) + SDL_PI_F;
+                        if (angle < SDL_PI_F * 0.25f) {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_NEGATIVE;
+                        } else if (angle < SDL_PI_F * 0.75f) {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_NEGATIVE;
+                        } else if (angle < SDL_PI_F * 1.25f) {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_POSITIVE;
+                        } else if (angle < SDL_PI_F * 1.75f) {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_POSITIVE;
+                        } else {
+                            return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_NEGATIVE;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    for (i = 0; i < SDL_arraysize(button_positions); ++i) {
+        bool on_front = true;
+
+        if (i >= SDL_GAMEPAD_BUTTON_RIGHT_PADDLE1 && i <= SDL_GAMEPAD_BUTTON_LEFT_PADDLE2) {
+            on_front = false;
+        }
+        if (on_front == ctx->showing_front) {
+            SDL_FRect rect;
+            rect.x = ctx->x + button_positions[i].x - ctx->button_width / 2;
+            rect.y = ctx->y + button_positions[i].y - ctx->button_height / 2;
+            rect.w = ctx->button_width;
+            rect.h = ctx->button_height;
+            if (SDL_PointInRectFloat(&point, &rect)) {
+                return (SDL_GamepadButton)i;
+            }
+        }
+    }
+    return SDL_GAMEPAD_ELEMENT_INVALID;
+}
+
+void ClearGamepadImage(GamepadImage *ctx)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_zeroa(ctx->elements);
+}
+
+void SetGamepadImageElement(GamepadImage *ctx, int element, bool active)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->elements[element] = active;
+}
+
+void UpdateGamepadImageFromGamepad(GamepadImage *ctx, SDL_Gamepad *gamepad)
+{
+    int i;
+
+    if (!ctx) {
+        return;
+    }
+
+    ctx->type = SDL_GetGamepadType(gamepad);
+    char *mapping = SDL_GetGamepadMapping(gamepad);
+    if (mapping) {
+        if (SDL_strstr(mapping, "SDL_GAMECONTROLLER_USE_BUTTON_LABELS")) {
+            /* Just for display purposes */
+            ctx->type = SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_PRO;
+        }
+        SDL_free(mapping);
+    }
+
+    for (i = 0; i < SDL_GAMEPAD_BUTTON_TOUCHPAD; ++i) {
+        const SDL_GamepadButton button = (SDL_GamepadButton)i;
+
+        SetGamepadImageElement(ctx, button, SDL_GetGamepadButton(gamepad, button));
+    }
+
+    for (i = 0; i < SDL_GAMEPAD_AXIS_COUNT; ++i) {
+        const SDL_GamepadAxis axis = (SDL_GamepadAxis)i;
+        const Sint16 deadzone = 8000; /* !!! FIXME: real deadzone */
+        const Sint16 value = SDL_GetGamepadAxis(gamepad, axis);
+        switch (i) {
+        case SDL_GAMEPAD_AXIS_LEFTX:
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_NEGATIVE, (value < -deadzone));
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_POSITIVE, (value > deadzone));
+            break;
+        case SDL_GAMEPAD_AXIS_RIGHTX:
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_NEGATIVE, (value < -deadzone));
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_POSITIVE, (value > deadzone));
+            break;
+        case SDL_GAMEPAD_AXIS_LEFTY:
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_NEGATIVE, (value < -deadzone));
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_POSITIVE, (value > deadzone));
+            break;
+        case SDL_GAMEPAD_AXIS_RIGHTY:
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_NEGATIVE, (value < -deadzone));
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_POSITIVE, (value > deadzone));
+            break;
+        case SDL_GAMEPAD_AXIS_LEFT_TRIGGER:
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFT_TRIGGER, (value > deadzone));
+            break;
+        case SDL_GAMEPAD_AXIS_RIGHT_TRIGGER:
+            SetGamepadImageElement(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHT_TRIGGER, (value > deadzone));
+            break;
+        default:
+            break;
+        }
+    }
+
+    ctx->connection_state = SDL_GetGamepadConnectionState(gamepad);
+    ctx->battery_state = SDL_GetGamepadPowerInfo(gamepad, &ctx->battery_percent);
+
+    if (SDL_GetNumGamepadTouchpads(gamepad) > 0) {
+        int num_fingers = SDL_GetNumGamepadTouchpadFingers(gamepad, 0);
+        if (num_fingers != ctx->num_fingers) {
+            GamepadTouchpadFinger *fingers = (GamepadTouchpadFinger *)SDL_realloc(ctx->fingers, num_fingers * sizeof(*fingers));
+            if (fingers) {
+                ctx->fingers = fingers;
+                ctx->num_fingers = num_fingers;
+            } else {
+                num_fingers = SDL_min(ctx->num_fingers, num_fingers);
+            }
+        }
+        for (i = 0; i < num_fingers; ++i) {
+            GamepadTouchpadFinger *finger = &ctx->fingers[i];
+
+            SDL_GetGamepadTouchpadFinger(gamepad, 0, i, &finger->down, &finger->x, &finger->y, &finger->pressure);
+        }
+        ctx->showing_touchpad = true;
+    } else {
+        if (ctx->fingers) {
+            SDL_free(ctx->fingers);
+            ctx->fingers = NULL;
+            ctx->num_fingers = 0;
+        }
+        ctx->showing_touchpad = false;
+    }
+}
+
+void RenderGamepadImage(GamepadImage *ctx)
+{
+    SDL_FRect dst;
+    int i;
+
+    if (!ctx) {
+        return;
+    }
+
+    dst.x = ctx->x;
+    dst.y = ctx->y;
+    dst.w = ctx->gamepad_width;
+    dst.h = ctx->gamepad_height;
+
+    if (ctx->showing_front) {
+        SDL_RenderTexture(ctx->renderer, ctx->front_texture, NULL, &dst);
+    } else {
+        SDL_RenderTexture(ctx->renderer, ctx->back_texture, NULL, &dst);
+    }
+
+    for (i = 0; i < SDL_arraysize(button_positions); ++i) {
+        if (ctx->elements[i]) {
+            SDL_GamepadButton button_position = (SDL_GamepadButton)i;
+            bool on_front = true;
+
+            if (i >= SDL_GAMEPAD_BUTTON_RIGHT_PADDLE1 && i <= SDL_GAMEPAD_BUTTON_LEFT_PADDLE2) {
+                on_front = false;
+            }
+            if (on_front == ctx->showing_front) {
+                dst.w = ctx->button_width;
+                dst.h = ctx->button_height;
+                dst.x = ctx->x + button_positions[button_position].x - dst.w / 2;
+                dst.y = ctx->y + button_positions[button_position].y - dst.h / 2;
+                SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+            }
+        }
+    }
+
+    if (ctx->showing_front) {
+        dst.x = ctx->x + 363;
+        dst.y = ctx->y + 118;
+        dst.w = ctx->face_width;
+        dst.h = ctx->face_height;
+
+        switch (SDL_GetGamepadButtonLabelForType(ctx->type, SDL_GAMEPAD_BUTTON_SOUTH)) {
+        case SDL_GAMEPAD_BUTTON_LABEL_A:
+            SDL_RenderTexture(ctx->renderer, ctx->face_abxy_texture, NULL, &dst);
+            break;
+        case SDL_GAMEPAD_BUTTON_LABEL_B:
+            SDL_RenderTexture(ctx->renderer, ctx->face_bayx_texture, NULL, &dst);
+            break;
+        case SDL_GAMEPAD_BUTTON_LABEL_CROSS:
+            SDL_RenderTexture(ctx->renderer, ctx->face_sony_texture, NULL, &dst);
+            break;
+        default:
+            break;
+        }
+    }
+
+    if (ctx->showing_front) {
+        for (i = 0; i < SDL_arraysize(axis_positions); ++i) {
+            const int element = SDL_GAMEPAD_BUTTON_COUNT + i;
+            if (ctx->elements[element]) {
+                const double angle = axis_positions[i].angle;
+                dst.w = ctx->axis_width;
+                dst.h = ctx->axis_height;
+                dst.x = ctx->x + axis_positions[i].x - dst.w / 2;
+                dst.y = ctx->y + axis_positions[i].y - dst.h / 2;
+                SDL_RenderTextureRotated(ctx->renderer, ctx->axis_texture, NULL, &dst, angle, NULL, SDL_FLIP_NONE);
+            }
+        }
+    }
+
+    if (ctx->display_mode == CONTROLLER_MODE_TESTING) {
+        dst.x = ctx->x + ctx->gamepad_width - ctx->battery_width - 4 - ctx->connection_width;
+        dst.y = ctx->y;
+        dst.w = ctx->connection_width;
+        dst.h = ctx->connection_height;
+
+        switch (ctx->connection_state) {
+        case SDL_JOYSTICK_CONNECTION_WIRED:
+            SDL_RenderTexture(ctx->renderer, ctx->connection_texture[0], NULL, &dst);
+            break;
+        case SDL_JOYSTICK_CONNECTION_WIRELESS:
+            SDL_RenderTexture(ctx->renderer, ctx->connection_texture[1], NULL, &dst);
+            break;
+        default:
+            break;
+        }
+    }
+
+    if (ctx->display_mode == CONTROLLER_MODE_TESTING &&
+        ctx->battery_state != SDL_POWERSTATE_NO_BATTERY &&
+        ctx->battery_state != SDL_POWERSTATE_UNKNOWN) {
+        Uint8 r, g, b, a;
+        SDL_FRect fill;
+
+        dst.x = ctx->x + ctx->gamepad_width - ctx->battery_width;
+        dst.y = ctx->y;
+        dst.w = ctx->battery_width;
+        dst.h = ctx->battery_height;
+
+        SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
+        if (ctx->battery_percent > 40) {
+            SDL_SetRenderDrawColor(ctx->renderer, 0x00, 0xD4, 0x50, 0xFF);
+        } else if (ctx->battery_percent > 10) {
+            SDL_SetRenderDrawColor(ctx->renderer, 0xFF, 0xC7, 0x00, 0xFF);
+        } else {
+            SDL_SetRenderDrawColor(ctx->renderer, 0xC8, 0x1D, 0x13, 0xFF);
+        }
+
+        fill = dst;
+        fill.x += 2;
+        fill.y += 2;
+        fill.h -= 4;
+        fill.w = 25.0f * (ctx->battery_percent / 100.0f);
+        SDL_RenderFillRect(ctx->renderer, &fill);
+        SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+
+        if (ctx->battery_state == SDL_POWERSTATE_ON_BATTERY) {
+            SDL_RenderTexture(ctx->renderer, ctx->battery_texture[0], NULL, &dst);
+        } else {
+            SDL_RenderTexture(ctx->renderer, ctx->battery_texture[1], NULL, &dst);
+        }
+    }
+
+    if (ctx->display_mode == CONTROLLER_MODE_TESTING && ctx->showing_touchpad) {
+        dst.x = ctx->x + (ctx->gamepad_width - ctx->touchpad_width) / 2;
+        dst.y = ctx->y + ctx->gamepad_height;
+        dst.w = ctx->touchpad_width;
+        dst.h = ctx->touchpad_height;
+        SDL_RenderTexture(ctx->renderer, ctx->touchpad_texture, NULL, &dst);
+
+        for (i = 0; i < ctx->num_fingers; ++i) {
+            GamepadTouchpadFinger *finger = &ctx->fingers[i];
+
+            if (finger->down) {
+                dst.x = ctx->x + (ctx->gamepad_width - ctx->touchpad_width) / 2;
+                dst.x += touchpad_area.x + finger->x * touchpad_area.w;
+                dst.x -= ctx->button_width / 2;
+                dst.y = ctx->y + ctx->gamepad_height;
+                dst.y += touchpad_area.y + finger->y * touchpad_area.h;
+                dst.y -= ctx->button_height / 2;
+                dst.w = ctx->button_width;
+                dst.h = ctx->button_height;
+                SDL_SetTextureAlphaMod(ctx->button_texture, (Uint8)(finger->pressure * SDL_ALPHA_OPAQUE));
+                SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+                SDL_SetTextureAlphaMod(ctx->button_texture, SDL_ALPHA_OPAQUE);
+            }
+        }
+    }
+}
+
+void DestroyGamepadImage(GamepadImage *ctx)
+{
+    if (ctx) {
+        int i;
+
+        SDL_DestroyTexture(ctx->front_texture);
+        SDL_DestroyTexture(ctx->back_texture);
+        SDL_DestroyTexture(ctx->face_abxy_texture);
+        SDL_DestroyTexture(ctx->face_bayx_texture);
+        SDL_DestroyTexture(ctx->face_sony_texture);
+        for (i = 0; i < SDL_arraysize(ctx->battery_texture); ++i) {
+            SDL_DestroyTexture(ctx->battery_texture[i]);
+        }
+        SDL_DestroyTexture(ctx->touchpad_texture);
+        SDL_DestroyTexture(ctx->button_texture);
+        SDL_DestroyTexture(ctx->axis_texture);
+        SDL_free(ctx);
+    }
+}
+
+
+static const char *gamepad_button_names[] = {
+    "South",
+    "East",
+    "West",
+    "North",
+    "Back",
+    "Guide",
+    "Start",
+    "Left Stick",
+    "Right Stick",
+    "Left Shoulder",
+    "Right Shoulder",
+    "DPAD Up",
+    "DPAD Down",
+    "DPAD Left",
+    "DPAD Right",
+    "Misc1",
+    "Right Paddle 1",
+    "Left Paddle 1",
+    "Right Paddle 2",
+    "Left Paddle 2",
+    "Touchpad",
+    "Misc2",
+    "Misc3",
+    "Misc4",
+    "Misc5",
+    "Misc6",
+};
+SDL_COMPILE_TIME_ASSERT(gamepad_button_names, SDL_arraysize(gamepad_button_names) == SDL_GAMEPAD_BUTTON_COUNT);
+
+static const char *gamepad_axis_names[] = {
+    "LeftX",
+    "LeftY",
+    "RightX",
+    "RightY",
+    "Left Trigger",
+    "Right Trigger",
+};
+SDL_COMPILE_TIME_ASSERT(gamepad_axis_names, SDL_arraysize(gamepad_axis_names) == SDL_GAMEPAD_AXIS_COUNT);
+
+struct GamepadDisplay
+{
+    SDL_Renderer *renderer;
+    SDL_Texture *button_texture;
+    SDL_Texture *arrow_texture;
+    float button_width;
+    float button_height;
+    float arrow_width;
+    float arrow_height;
+
+    float accel_data[3];
+    float gyro_data[3];
+    Uint64 last_sensor_update;
+
+    ControllerDisplayMode display_mode;
+    int element_highlighted;
+    bool element_pressed;
+    int element_selected;
+
+    SDL_FRect area;
+};
+
+GamepadDisplay *CreateGamepadDisplay(SDL_Renderer *renderer)
+{
+    GamepadDisplay *ctx = SDL_calloc(1, sizeof(*ctx));
+    if (ctx) {
+        ctx->renderer = renderer;
+
+        ctx->button_texture = CreateTexture(renderer, gamepad_button_small_bmp, gamepad_button_small_bmp_len);
+        SDL_GetTextureSize(ctx->button_texture, &ctx->button_width, &ctx->button_height);
+
+        ctx->arrow_texture = CreateTexture(renderer, gamepad_axis_arrow_bmp, gamepad_axis_arrow_bmp_len);
+        SDL_GetTextureSize(ctx->arrow_texture, &ctx->arrow_width, &ctx->arrow_height);
+
+        ctx->element_highlighted = SDL_GAMEPAD_ELEMENT_INVALID;
+        ctx->element_selected = SDL_GAMEPAD_ELEMENT_INVALID;
+    }
+    return ctx;
+}
+
+void SetGamepadDisplayDisplayMode(GamepadDisplay *ctx, ControllerDisplayMode display_mode)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->display_mode = display_mode;
+}
+
+void SetGamepadDisplayArea(GamepadDisplay *ctx, const SDL_FRect *area)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_copyp(&ctx->area, area);
+}
+
+static bool GetBindingString(const char *label, const char *mapping, char *text, size_t size)
+{
+    char *key;
+    char *value, *end;
+    size_t length;
+    bool found = false;
+
+    *text = '\0';
+
+    if (!mapping) {
+        return false;
+    }
+
+    key = SDL_strstr(mapping, label);
+    while (key && size > 1) {
+        if (found) {
+            *text++ = ',';
+            *text = '\0';
+            --size;
+        } else {
+            found = true;
+        }
+        value = key + SDL_strlen(label);
+        end = SDL_strchr(value, ',');
+        if (end) {
+            length = (end - value);
+        } else {
+            length = SDL_strlen(value);
+        }
+        if (length >= size) {
+            length = size - 1;
+        }
+        SDL_memcpy(text, value, length);
+        text[length] = '\0';
+        text += length;
+        size -= length;
+        key = SDL_strstr(value, label);
+    }
+    return found;
+}
+
+static bool GetButtonBindingString(SDL_GamepadButton button, const char *mapping, char *text, size_t size)
+{
+    char label[32];
+    bool baxy_mapping = false;
+
+    if (!mapping) {
+        return false;
+    }
+
+    SDL_snprintf(label, sizeof(label), ",%s:", SDL_GetGamepadStringForButton(button));
+    if (GetBindingString(label, mapping, text, size)) {
+        return true;
+    }
+
+    /* Try the legacy button names */
+    if (SDL_strstr(mapping, ",hint:SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1") != NULL) {
+        baxy_mapping = true;
+    }
+    switch (button) {
+    case SDL_GAMEPAD_BUTTON_SOUTH:
+        if (baxy_mapping) {
+            return GetBindingString(",b:", mapping, text, size);
+        } else {
+            return GetBindingString(",a:", mapping, text, size);
+        }
+    case SDL_GAMEPAD_BUTTON_EAST:
+        if (baxy_mapping) {
+            return GetBindingString(",a:", mapping, text, size);
+        } else {
+            return GetBindingString(",b:", mapping, text, size);
+        }
+    case SDL_GAMEPAD_BUTTON_WEST:
+        if (baxy_mapping) {
+            return GetBindingString(",y:", mapping, text, size);
+        } else {
+            return GetBindingString(",x:", mapping, text, size);
+        }
+    case SDL_GAMEPAD_BUTTON_NORTH:
+        if (baxy_mapping) {
+            return GetBindingString(",x:", mapping, text, size);
+        } else {
+            return GetBindingString(",y:", mapping, text, size);
+        }
+    default:
+        return false;
+    }
+}
+
+static bool GetAxisBindingString(SDL_GamepadAxis axis, int direction, const char *mapping, char *text, size_t size)
+{
+    char label[32];
+
+    /* Check for explicit half-axis */
+    if (direction < 0) {
+        SDL_snprintf(label, sizeof(label), ",-%s:", SDL_GetGamepadStringForAxis(axis));
+    } else {
+        SDL_snprintf(label, sizeof(label), ",+%s:", SDL_GetGamepadStringForAxis(axis));
+    }
+    if (GetBindingString(label, mapping, text, size)) {
+        return true;
+    }
+
+    /* Get the binding for the whole axis and split it if necessary */
+    SDL_snprintf(label, sizeof(label), ",%s:", SDL_GetGamepadStringForAxis(axis));
+    if (!GetBindingString(label, mapping, text, size)) {
+        return false;
+    }
+    if (axis != SDL_GAMEPAD_AXIS_LEFT_TRIGGER && axis != SDL_GAMEPAD_AXIS_RIGHT_TRIGGER) {
+        if (*text == 'a') {
+            /* Split the axis */
+            size_t length = SDL_strlen(text) + 1;
+            if ((length + 1) <= size) {
+                SDL_memmove(text + 1, text, length);
+                if (text[SDL_strlen(text) - 1] == '~') {
+                    direction *= -1;
+                    text[SDL_strlen(text) - 1] = '\0';
+                }
+                if (direction > 0) {
+                    *text = '+';
+                } else {
+                    *text = '-';
+                }
+            }
+        }
+    }
+    return true;
+}
+
+void SetGamepadDisplayHighlight(GamepadDisplay *ctx, int element, bool pressed)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->element_highlighted = element;
+    ctx->element_pressed = pressed;
+}
+
+void SetGamepadDisplaySelected(GamepadDisplay *ctx, int element)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->element_selected = element;
+}
+
+int GetGamepadDisplayElementAt(GamepadDisplay *ctx, SDL_Gamepad *gamepad, float x, float y)
+{
+    int i;
+    const float margin = 8.0f;
+    const float center = ctx->area.w / 2.0f;
+    const float arrow_extent = 48.0f;
+    SDL_FPoint point;
+    SDL_FRect rect;
+
+    if (!ctx) {
+        return SDL_GAMEPAD_ELEMENT_INVALID;
+    }
+
+    point.x = x;
+    point.y = y;
+
+    rect.x = ctx->area.x + margin;
+    rect.y = ctx->area.y + margin + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+    rect.w = ctx->area.w - (margin * 2);
+    rect.h = ctx->button_height;
+
+    for (i = 0; i < SDL_GAMEPAD_BUTTON_COUNT; ++i) {
+        SDL_GamepadButton button = (SDL_GamepadButton)i;
+
+        if (ctx->display_mode == CONTROLLER_MODE_TESTING &&
+            !SDL_GamepadHasButton(gamepad, button)) {
+            continue;
+        }
+
+
+        if (SDL_PointInRectFloat(&point, &rect)) {
+            return i;
+        }
+
+        rect.y += ctx->button_height + 2.0f;
+    }
+
+    for (i = 0; i < SDL_GAMEPAD_AXIS_COUNT; ++i) {
+        SDL_GamepadAxis axis = (SDL_GamepadAxis)i;
+        SDL_FRect area;
+
+        if (ctx->display_mode == CONTROLLER_MODE_TESTING &&
+            !SDL_GamepadHasAxis(gamepad, axis)) {
+            continue;
+        }
+
+        area.x = rect.x + center + 2.0f;
+        area.y = rect.y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+        area.w = ctx->arrow_width + arrow_extent;
+        area.h = ctx->button_height;
+
+        if (SDL_PointInRectFloat(&point, &area)) {
+            switch (axis) {
+            case SDL_GAMEPAD_AXIS_LEFTX:
+                return SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_NEGATIVE;
+            case SDL_GAMEPAD_AXIS_LEFTY:
+                return SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_NEGATIVE;
+            case SDL_GAMEPAD_AXIS_RIGHTX:
+                return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_NEGATIVE;
+            case SDL_GAMEPAD_AXIS_RIGHTY:
+                return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_NEGATIVE;
+            default:
+                break;
+            }
+        }
+
+        area.x += area.w;
+
+        if (SDL_PointInRectFloat(&point, &area)) {
+            switch (axis) {
+            case SDL_GAMEPAD_AXIS_LEFTX:
+                return SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_POSITIVE;
+            case SDL_GAMEPAD_AXIS_LEFTY:
+                return SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_POSITIVE;
+            case SDL_GAMEPAD_AXIS_RIGHTX:
+                return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_POSITIVE;
+            case SDL_GAMEPAD_AXIS_RIGHTY:
+                return SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_POSITIVE;
+            case SDL_GAMEPAD_AXIS_LEFT_TRIGGER:
+                return SDL_GAMEPAD_ELEMENT_AXIS_LEFT_TRIGGER;
+            case SDL_GAMEPAD_AXIS_RIGHT_TRIGGER:
+                return SDL_GAMEPAD_ELEMENT_AXIS_RIGHT_TRIGGER;
+            default:
+                break;
+            }
+        }
+
+        rect.y += ctx->button_height + 2.0f;
+    }
+    return SDL_GAMEPAD_ELEMENT_INVALID;
+}
+
+static void RenderGamepadElementHighlight(GamepadDisplay *ctx, int element, const SDL_FRect *area)
+{
+    if (element == ctx->element_highlighted || element == ctx->element_selected) {
+        Uint8 r, g, b, a;
+
+        SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
+
+        if (element == ctx->element_highlighted) {
+            if (ctx->element_pressed) {
+                SDL_SetRenderDrawColor(ctx->renderer, PRESSED_COLOR);
+            } else {
+                SDL_SetRenderDrawColor(ctx->renderer, HIGHLIGHT_COLOR);
+            }
+        } else {
+            SDL_SetRenderDrawColor(ctx->renderer, SELECTED_COLOR);
+        }
+        SDL_RenderFillRect(ctx->renderer, area);
+
+        SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+    }
+}
+
+void RenderGamepadDisplay(GamepadDisplay *ctx, SDL_Gamepad *gamepad)
+{
+    float x, y;
+    int i;
+    char text[128], binding[32];
+    const float margin = 8.0f;
+    const float center = ctx->area.w / 2.0f;
+    const float arrow_extent = 48.0f;
+    SDL_FRect dst, rect, highlight;
+    Uint8 r, g, b, a;
+    char *mapping;
+    bool has_accel;
+    bool has_gyro;
+
+    if (!ctx) {
+        return;
+    }
+
+    SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
+
+    mapping = SDL_GetGamepadMapping(gamepad);
+
+    x = ctx->area.x + margin;
+    y = ctx->area.y + margin;
+
+    for (i = 0; i < SDL_GAMEPAD_BUTTON_COUNT; ++i) {
+        SDL_GamepadButton button = (SDL_GamepadButton)i;
+
+        if (ctx->display_mode == CONTROLLER_MODE_TESTING &&
+            !SDL_GamepadHasButton(gamepad, button)) {
+            continue;
+        }
+
+        highlight.x = x;
+        highlight.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+        highlight.w = ctx->area.w - (margin * 2);
+        highlight.h = ctx->button_height;
+        RenderGamepadElementHighlight(ctx, i, &highlight);
+
+        SDL_snprintf(text, sizeof(text), "%s:", gamepad_button_names[i]);
+        SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
+
+        if (SDL_GetGamepadButton(gamepad, button)) {
+            SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
+        } else {
+            SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
+        }
+
+        dst.x = x + center + 2.0f;
+        dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+        dst.w = ctx->button_width;
+        dst.h = ctx->button_height;
+        SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+
+        if (ctx->display_mode == CONTROLLER_MODE_BINDING) {
+            if (GetButtonBindingString(button, mapping, binding, sizeof(binding))) {
+                dst.x += dst.w + 2 * margin;
+                SDLTest_DrawString(ctx->renderer, dst.x, y, binding);
+            }
+        }
+
+        y += ctx->button_height + 2.0f;
+    }
+
+    for (i = 0; i < SDL_GAMEPAD_AXIS_COUNT; ++i) {
+        SDL_GamepadAxis axis = (SDL_GamepadAxis)i;
+        bool has_negative = (axis != SDL_GAMEPAD_AXIS_LEFT_TRIGGER && axis != SDL_GAMEPAD_AXIS_RIGHT_TRIGGER);
+        Sint16 value;
+
+        if (ctx->display_mode == CONTROLLER_MODE_TESTING &&
+            !SDL_GamepadHasAxis(gamepad, axis)) {
+            continue;
+        }
+
+        value = SDL_GetGamepadAxis(gamepad, axis);
+
+        SDL_snprintf(text, sizeof(text), "%s:", gamepad_axis_names[i]);
+        SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
+
+        highlight.x = x + center + 2.0f;
+        highlight.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+        highlight.w = ctx->arrow_width + arrow_extent;
+        highlight.h = ctx->button_height;
+
+        switch (axis) {
+        case SDL_GAMEPAD_AXIS_LEFTX:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_NEGATIVE, &highlight);
+            break;
+        case SDL_GAMEPAD_AXIS_LEFTY:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_NEGATIVE, &highlight);
+            break;
+        case SDL_GAMEPAD_AXIS_RIGHTX:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_NEGATIVE, &highlight);
+            break;
+        case SDL_GAMEPAD_AXIS_RIGHTY:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_NEGATIVE, &highlight);
+            break;
+        default:
+            break;
+        }
+
+        highlight.x += highlight.w;
+
+        switch (axis) {
+        case SDL_GAMEPAD_AXIS_LEFTX:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_POSITIVE, &highlight);
+            break;
+        case SDL_GAMEPAD_AXIS_LEFTY:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_POSITIVE, &highlight);
+            break;
+        case SDL_GAMEPAD_AXIS_RIGHTX:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_POSITIVE, &highlight);
+            break;
+        case SDL_GAMEPAD_AXIS_RIGHTY:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_POSITIVE, &highlight);
+            break;
+        case SDL_GAMEPAD_AXIS_LEFT_TRIGGER:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_LEFT_TRIGGER, &highlight);
+            break;
+        case SDL_GAMEPAD_AXIS_RIGHT_TRIGGER:
+            RenderGamepadElementHighlight(ctx, SDL_GAMEPAD_ELEMENT_AXIS_RIGHT_TRIGGER, &highlight);
+            break;
+        default:
+            break;
+        }
+
+        dst.x = x + center + 2.0f;
+        dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->arrow_height / 2;
+        dst.w = ctx->arrow_width;
+        dst.h = ctx->arrow_height;
+
+        if (has_negative) {
+            if (value == SDL_MIN_SINT16) {
+                SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
+            } else {
+                SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
+            }
+            SDL_RenderTextureRotated(ctx->renderer, ctx->arrow_texture, NULL, &dst, 0.0f, NULL, SDL_FLIP_HORIZONTAL);
+        }
+
+        dst.x += ctx->arrow_width;
+
+        SDL_SetRenderDrawColor(ctx->renderer, 200, 200, 200, SDL_ALPHA_OPAQUE);
+        rect.x = dst.x + arrow_extent - 2.0f;
+        rect.y = dst.y;
+        rect.w = 4.0f;
+        rect.h = ctx->arrow_height;
+        SDL_RenderFillRect(ctx->renderer, &rect);
+        SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+
+        if (value < 0) {
+            SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
+            rect.w = ((float)value / SDL_MIN_SINT16) * arrow_extent;
+            rect.x = dst.x + arrow_extent - rect.w;
+            rect.y = dst.y + ctx->arrow_height * 0.25f;
+            rect.h = ctx->arrow_height / 2.0f;
+            SDL_RenderFillRect(ctx->renderer, &rect);
+        }
+
+        if (ctx->display_mode == CONTROLLER_MODE_BINDING && has_negative) {
+            if (GetAxisBindingString(axis, -1, mapping, binding, sizeof(binding))) {
+                float text_x;
+
+                SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+                text_x = dst.x + arrow_extent / 2 - (FONT_CHARACTER_SIZE * SDL_strlen(binding)) / 2;
+                SDLTest_DrawString(ctx->renderer, text_x, y, binding);
+            }
+        }
+
+        dst.x += arrow_extent;
+
+        if (value > 0) {
+            SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
+            rect.w = ((float)value / SDL_MAX_SINT16) * arrow_extent;
+            rect.x = dst.x;
+            rect.y = dst.y + ctx->arrow_height * 0.25f;
+            rect.h = ctx->arrow_height / 2.0f;
+            SDL_RenderFillRect(ctx->renderer, &rect);
+        }
+
+        if (ctx->display_mode == CONTROLLER_MODE_BINDING) {
+            if (GetAxisBindingString(axis, 1, mapping, binding, sizeof(binding))) {
+                float text_x;
+
+                SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+                text_x = dst.x + arrow_extent / 2 - (FONT_CHARACTER_SIZE * SDL_strlen(binding)) / 2;
+                SDLTest_DrawString(ctx->renderer, text_x, y, binding);
+            }
+        }
+
+        dst.x += arrow_extent;
+
+        if (value == SDL_MAX_SINT16) {
+            SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
+        } else {
+            SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
+        }
+        SDL_RenderTexture(ctx->renderer, ctx->arrow_texture, NULL, &dst);
+
+        SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+
+        y += ctx->button_height + 2.0f;
+    }
+
+    if (ctx->display_mode == CONTROLLER_MODE_TESTING) {
+        if (SDL_GetNumGamepadTouchpads(gamepad) > 0) {
+            int num_fingers = SDL_GetNumGamepadTouchpadFingers(gamepad, 0);
+            for (i = 0; i < num_fingers; ++i) {
+                bool down;
+                float finger_x, finger_y, finger_pressure;
+
+                if (!SDL_GetGamepadTouchpadFinger(gamepad, 0, i, &down, &finger_x, &finger_y, &finger_pressure)) {
+                    continue;
+                }
+
+                SDL_snprintf(text, sizeof(text), "Touch finger %d:", i);
+                SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
+
+                if (down) {
+                    SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
+                } else {
+                    SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
+                }
+
+                dst.x = x + center + 2.0f;
+                dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+                dst.w = ctx->button_width;
+                dst.h = ctx->button_height;
+                SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+
+                if (down) {
+                    SDL_snprintf(text, sizeof(text), "(%.2f,%.2f)", finger_x, finger_y);
+                    SDLTest_DrawString(ctx->renderer, x + center + ctx->button_width + 4.0f, y, text);
+                }
+
+                y += ctx->button_height + 2.0f;
+            }
+        }
+
+        has_accel = SDL_GamepadHasSensor(gamepad, SDL_SENSOR_ACCEL);
+        has_gyro = SDL_GamepadHasSensor(gamepad, SDL_SENSOR_GYRO);
+        if (has_accel || has_gyro) {
+            const int SENSOR_UPDATE_INTERVAL_MS = 100;
+            Uint64 now = SDL_GetTicks();
+
+            if (now >= ctx->last_sensor_update + SENSOR_UPDATE_INTERVAL_MS) {
+                if (has_accel) {
+                    SDL_GetGamepadSensorData(gamepad, SDL_SENSOR_ACCEL, ctx->accel_data, SDL_arraysize(ctx->accel_data));
+                }
+                if (has_gyro) {
+                    SDL_GetGamepadSensorData(gamepad, SDL_SENSOR_GYRO, ctx->gyro_data, SDL_arraysize(ctx->gyro_data));
+                }
+                ctx->last_sensor_update = now;
+            }
+
+            if (has_accel) {
+                SDL_strlcpy(text, "Accelerometer:", sizeof(text));
+                SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
+                SDL_snprintf(text, sizeof(text), "(%.2f,%.2f,%.2f)", ctx->accel_data[0], ctx->accel_data[1], ctx->accel_data[2]);
+                SDLTest_DrawString(ctx->renderer, x + center + 2.0f, y, text);
+
+                y += ctx->button_height + 2.0f;
+            }
+
+            if (has_gyro) {
+                SDL_strlcpy(text, "Gyro:", sizeof(text));
+                SDLTest_DrawString(ctx->renderer, x + center - SDL_strlen(text) * FONT_CHARACTER_SIZE, y, text);
+                SDL_snprintf(text, sizeof(text), "(%.2f,%.2f,%.2f)", ctx->gyro_data[0], ctx->gyro_data[1], ctx->gyro_data[2]);
+                SDLTest_DrawString(ctx->renderer, x + center + 2.0f, y, text);
+
+                y += ctx->button_height + 2.0f;
+            }
+        }
+    }
+    SDL_free(mapping);
+}
+
+void DestroyGamepadDisplay(GamepadDisplay *ctx)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_DestroyTexture(ctx->button_texture);
+    SDL_DestroyTexture(ctx->arrow_texture);
+    SDL_free(ctx);
+}
+
+struct GamepadTypeDisplay
+{
+    SDL_Renderer *renderer;
+
+    int type_highlighted;
+    bool type_pressed;
+    int type_selected;
+    SDL_GamepadType real_type;
+
+    SDL_FRect area;
+};
+
+GamepadTypeDisplay *CreateGamepadTypeDisplay(SDL_Renderer *renderer)
+{
+    GamepadTypeDisplay *ctx = SDL_calloc(1, sizeof(*ctx));
+    if (ctx) {
+        ctx->renderer = renderer;
+
+        ctx->type_highlighted = SDL_GAMEPAD_TYPE_UNSELECTED;
+        ctx->type_selected = SDL_GAMEPAD_TYPE_UNSELECTED;
+        ctx->real_type = SDL_GAMEPAD_TYPE_UNKNOWN;
+    }
+    return ctx;
+}
+
+void SetGamepadTypeDisplayArea(GamepadTypeDisplay *ctx, const SDL_FRect *area)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_copyp(&ctx->area, area);
+}
+
+void SetGamepadTypeDisplayHighlight(GamepadTypeDisplay *ctx, int type, bool pressed)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->type_highlighted = type;
+    ctx->type_pressed = pressed;
+}
+
+void SetGamepadTypeDisplaySelected(GamepadTypeDisplay *ctx, int type)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->type_selected = type;
+}
+
+void SetGamepadTypeDisplayRealType(GamepadTypeDisplay *ctx, SDL_GamepadType type)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->real_type = type;
+}
+
+int GetGamepadTypeDisplayAt(GamepadTypeDisplay *ctx, float x, float y)
+{
+    int i;
+    const float margin = 8.0f;
+    const float line_height = 16.0f;
+    SDL_FRect highlight;
+    SDL_FPoint point;
+
+    if (!ctx) {
+        return SDL_GAMEPAD_TYPE_UNSELECTED;
+    }
+
+    point.x = x;
+    point.y = y;
+
+    x = ctx->area.x + margin;
+    y = ctx->area.y + margin;
+
+    for (i = SDL_GAMEPAD_TYPE_UNKNOWN; i < SDL_GAMEPAD_TYPE_COUNT; ++i) {
+        highlight.x = x;
+        highlight.y = y;
+        highlight.w = ctx->area.w - (margin * 2);
+        highlight.h = line_height;
+
+        if (SDL_PointInRectFloat(&point, &highlight)) {
+            return i;
+        }
+
+        y += line_height;
+    }
+    return SDL_GAMEPAD_TYPE_UNSELECTED;
+}
+
+static void RenderGamepadTypeHighlight(GamepadTypeDisplay *ctx, int type, const SDL_FRect *area)
+{
+    if (type == ctx->type_highlighted || type == ctx->type_selected) {
+        Uint8 r, g, b, a;
+
+        SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
+
+        if (type == ctx->type_highlighted) {
+            if (ctx->type_pressed) {
+                SDL_SetRenderDrawColor(ctx->renderer, PRESSED_COLOR);
+            } else {
+                SDL_SetRenderDrawColor(ctx->renderer, HIGHLIGHT_COLOR);
+            }
+        } else {
+            SDL_SetRenderDrawColor(ctx->renderer, SELECTED_COLOR);
+        }
+        SDL_RenderFillRect(ctx->renderer, area);
+
+        SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+    }
+}
+
+void RenderGamepadTypeDisplay(GamepadTypeDisplay *ctx)
+{
+    float x, y;
+    int i;
+    char text[128];
+    const float margin = 8.0f;
+    const float line_height = 16.0f;
+    SDL_FPoint dst;
+    SDL_FRect highlight;
+
+    if (!ctx) {
+        return;
+    }
+
+    x = ctx->area.x + margin;
+    y = ctx->area.y + margin;
+
+    for (i = SDL_GAMEPAD_TYPE_UNKNOWN; i < SDL_GAMEPAD_TYPE_COUNT; ++i) {
+        highlight.x = x;
+        highlight.y = y;
+        highlight.w = ctx->area.w - (margin * 2);
+        highlight.h = line_height;
+        RenderGamepadTypeHighlight(ctx, i, &highlight);
+
+        if (i == SDL_GAMEPAD_TYPE_UNKNOWN) {
+            if (ctx->real_type == SDL_GAMEPAD_TYPE_UNKNOWN ||
+                ctx->real_type == SDL_GAMEPAD_TYPE_STANDARD) {
+                SDL_strlcpy(text, "Auto (Standard)", sizeof(text));
+            } else {
+                SDL_snprintf(text, sizeof(text), "Auto (%s)", GetGamepadTypeString(ctx->real_type));
+            }
+        } else if (i == SDL_GAMEPAD_TYPE_STANDARD) {
+            SDL_strlcpy(text, "Standard", sizeof(text));
+        } else {
+            SDL_strlcpy(text, GetGamepadTypeString((SDL_GamepadType)i), sizeof(text));
+        }
+
+        dst.x = x + margin;
+        dst.y = y + line_height / 2 - FONT_CHARACTER_SIZE / 2;
+        SDLTest_DrawString(ctx->renderer, dst.x, dst.y, text);
+
+        y += line_height;
+    }
+}
+
+void DestroyGamepadTypeDisplay(GamepadTypeDisplay *ctx)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_free(ctx);
+}
+
+
+struct JoystickDisplay
+{
+    SDL_Renderer *renderer;
+    SDL_Texture *button_texture;
+    SDL_Texture *arrow_texture;
+    float button_width;
+    float button_height;
+    float arrow_width;
+    float arrow_height;
+
+    SDL_FRect area;
+
+    char *element_highlighted;
+    bool element_pressed;
+};
+
+JoystickDisplay *CreateJoystickDisplay(SDL_Renderer *renderer)
+{
+    JoystickDisplay *ctx = SDL_calloc(1, sizeof(*ctx));
+    if (ctx) {
+        ctx->renderer = renderer;
+
+        ctx->button_texture = CreateTexture(renderer, gamepad_button_small_bmp, gamepad_button_small_bmp_len);
+        SDL_GetTextureSize(ctx->button_texture, &ctx->button_width, &ctx->button_height);
+
+        ctx->arrow_texture = CreateTexture(renderer, gamepad_axis_arrow_bmp, gamepad_axis_arrow_bmp_len);
+        SDL_GetTextureSize(ctx->arrow_texture, &ctx->arrow_width, &ctx->arrow_height);
+    }
+    return ctx;
+}
+
+void SetJoystickDisplayArea(JoystickDisplay *ctx, const SDL_FRect *area)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_copyp(&ctx->area, area);
+}
+
+char *GetJoystickDisplayElementAt(JoystickDisplay *ctx, SDL_Joystick *joystick, float x, float y)
+{
+    SDL_FPoint point;
+    int i;
+    int nbuttons = SDL_GetNumJoystickButtons(joystick);
+    int naxes = SDL_GetNumJoystickAxes(joystick);
+    int nhats = SDL_GetNumJoystickHats(joystick);
+    char text[32];
+    const float margin = 8.0f;
+    const float center = 80.0f;
+    const float arrow_extent = 48.0f;
+    SDL_FRect dst, highlight;
+    char *element = NULL;
+
+    if (!ctx) {
+        return NULL;
+    }
+
+    point.x = x;
+    point.y = y;
+
+    x = ctx->area.x + margin;
+    y = ctx->area.y + margin;
+
+    if (nbuttons > 0) {
+        y += FONT_LINE_HEIGHT + 2;
+
+        for (i = 0; i < nbuttons; ++i) {
+            highlight.x = x;
+            highlight.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            highlight.w = center - (margin * 2);
+            highlight.h = ctx->button_height;
+            if (SDL_PointInRectFloat(&point, &highlight)) {
+                SDL_asprintf(&element, "b%d", i);
+                return element;
+            }
+
+            y += ctx->button_height + 2;
+        }
+    }
+
+    x = ctx->area.x + margin + center + margin;
+    y = ctx->area.y + margin;
+
+    if (naxes > 0) {
+        y += FONT_LINE_HEIGHT + 2;
+
+        for (i = 0; i < naxes; ++i) {
+            SDL_snprintf(text, sizeof(text), "%d:", i);
+
+            highlight.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2.0f;
+            highlight.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            highlight.w = ctx->arrow_width + arrow_extent;
+            highlight.h = ctx->button_height;
+            if (SDL_PointInRectFloat(&point, &highlight)) {
+                SDL_asprintf(&element, "-a%d", i);
+                return element;
+            }
+
+            highlight.x += highlight.w;
+            if (SDL_PointInRectFloat(&point, &highlight)) {
+                SDL_asprintf(&element, "+a%d", i);
+                return element;
+            }
+
+            y += ctx->button_height + 2;
+        }
+    }
+
+    y += FONT_LINE_HEIGHT + 2;
+
+    if (nhats > 0) {
+        y += FONT_LINE_HEIGHT + 2 + 1.5f * ctx->button_height - FONT_CHARACTER_SIZE / 2;
+
+        for (i = 0; i < nhats; ++i) {
+            SDL_snprintf(text, sizeof(text), "%d:", i);
+
+            dst.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2;
+            dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            dst.w = ctx->button_width;
+            dst.h = ctx->button_height;
+            if (SDL_PointInRectFloat(&point, &dst)) {
+                SDL_asprintf(&element, "h%d.%d", i, SDL_HAT_LEFT);
+                return element;
+            }
+
+            dst.x += ctx->button_width;
+            dst.y -= ctx->button_height;
+            if (SDL_PointInRectFloat(&point, &dst)) {
+                SDL_asprintf(&element, "h%d.%d", i, SDL_HAT_UP);
+                return element;
+            }
+
+            dst.y += ctx->button_height * 2;
+            if (SDL_PointInRectFloat(&point, &dst)) {
+                SDL_asprintf(&element, "h%d.%d", i, SDL_HAT_DOWN);
+                return element;
+            }
+
+            dst.x += ctx->button_width;
+            dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            if (SDL_PointInRectFloat(&point, &dst)) {
+                SDL_asprintf(&element, "h%d.%d", i, SDL_HAT_RIGHT);
+                return element;
+            }
+
+            y += 3 * ctx->button_height + 2;
+        }
+    }
+    return NULL;
+}
+
+void SetJoystickDisplayHighlight(JoystickDisplay *ctx, const char *element, bool pressed)
+{
+    if (ctx->element_highlighted) {
+        SDL_free(ctx->element_highlighted);
+        ctx->element_highlighted = NULL;
+        ctx->element_pressed = false;
+    }
+
+    if (element) {
+        ctx->element_highlighted = SDL_strdup(element);
+        ctx->element_pressed = pressed;
+    }
+}
+
+static void RenderJoystickButtonHighlight(JoystickDisplay *ctx, int button, const SDL_FRect *area)
+{
+    if (!ctx->element_highlighted || *ctx->element_highlighted != 'b') {
+        return;
+    }
+
+    if (SDL_atoi(ctx->element_highlighted + 1) == button) {
+        Uint8 r, g, b, a;
+
+        SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
+
+        if (ctx->element_pressed) {
+            SDL_SetRenderDrawColor(ctx->renderer, PRESSED_COLOR);
+        } else {
+            SDL_SetRenderDrawColor(ctx->renderer, HIGHLIGHT_COLOR);
+        }
+        SDL_RenderFillRect(ctx->renderer, area);
+
+        SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+    }
+}
+
+static void RenderJoystickAxisHighlight(JoystickDisplay *ctx, int axis, int direction, const SDL_FRect *area)
+{
+    char prefix = (direction < 0 ? '-' : '+');
+
+    if (!ctx->element_highlighted ||
+        ctx->element_highlighted[0] != prefix ||
+        ctx->element_highlighted[1] != 'a') {
+        return;
+    }
+
+    if (SDL_atoi(ctx->element_highlighted + 2) == axis) {
+        Uint8 r, g, b, a;
+
+        SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
+
+        if (ctx->element_pressed) {
+            SDL_SetRenderDrawColor(ctx->renderer, PRESSED_COLOR);
+        } else {
+            SDL_SetRenderDrawColor(ctx->renderer, HIGHLIGHT_COLOR);
+        }
+        SDL_RenderFillRect(ctx->renderer, area);
+
+        SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+    }
+}
+
+static bool SetupJoystickHatHighlight(JoystickDisplay *ctx, int hat, int direction)
+{
+    if (!ctx->element_highlighted || *ctx->element_highlighted != 'h') {
+        return false;
+    }
+
+    if (SDL_atoi(ctx->element_highlighted + 1) == hat &&
+        ctx->element_highlighted[2] == '.' &&
+        SDL_atoi(ctx->element_highlighted + 3) == direction) {
+        if (ctx->element_pressed) {
+            SDL_SetTextureColorMod(ctx->button_texture, PRESSED_TEXTURE_MOD);
+        } else {
+            SDL_SetTextureColorMod(ctx->button_texture, HIGHLIGHT_TEXTURE_MOD);
+        }
+        return true;
+    }
+    return false;
+}
+
+void RenderJoystickDisplay(JoystickDisplay *ctx, SDL_Joystick *joystick)
+{
+    float x, y;
+    int i;
+    int nbuttons = SDL_GetNumJoystickButtons(joystick);
+    int naxes = SDL_GetNumJoystickAxes(joystick);
+    int nhats = SDL_GetNumJoystickHats(joystick);
+    char text[32];
+    const float margin = 8.0f;
+    const float center = 80.0f;
+    const float arrow_extent = 48.0f;
+    SDL_FRect dst, rect, highlight;
+    Uint8 r, g, b, a;
+
+    if (!ctx) {
+        return;
+    }
+
+    SDL_GetRenderDrawColor(ctx->renderer, &r, &g, &b, &a);
+
+    x = ctx->area.x + margin;
+    y = ctx->area.y + margin;
+
+    if (nbuttons > 0) {
+        SDLTest_DrawString(ctx->renderer, x, y, "BUTTONS");
+        y += FONT_LINE_HEIGHT + 2;
+
+        for (i = 0; i < nbuttons; ++i) {
+            highlight.x = x;
+            highlight.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            highlight.w = center - (margin * 2);
+            highlight.h = ctx->button_height;
+            RenderJoystickButtonHighlight(ctx, i, &highlight);
+
+            SDL_snprintf(text, sizeof(text), "%2d:", i);
+            SDLTest_DrawString(ctx->renderer, x, y, text);
+
+            if (SDL_GetJoystickButton(joystick, (Uint8)i)) {
+                SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
+            } else {
+                SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
+            }
+
+            dst.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2;
+            dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            dst.w = ctx->button_width;
+            dst.h = ctx->button_height;
+            SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+
+            y += ctx->button_height + 2;
+        }
+    }
+
+    x = ctx->area.x + margin + center + margin;
+    y = ctx->area.y + margin;
+
+    if (naxes > 0) {
+        SDLTest_DrawString(ctx->renderer, x, y, "AXES");
+        y += FONT_LINE_HEIGHT + 2;
+
+        for (i = 0; i < naxes; ++i) {
+            Sint16 value = SDL_GetJoystickAxis(joystick, i);
+
+            SDL_snprintf(text, sizeof(text), "%d:", i);
+            SDLTest_DrawString(ctx->renderer, x, y, text);
+
+            highlight.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2.0f;
+            highlight.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            highlight.w = ctx->arrow_width + arrow_extent;
+            highlight.h = ctx->button_height;
+            RenderJoystickAxisHighlight(ctx, i, -1, &highlight);
+
+            highlight.x += highlight.w;
+            RenderJoystickAxisHighlight(ctx, i, 1, &highlight);
+
+            dst.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2.0f;
+            dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->arrow_height / 2;
+            dst.w = ctx->arrow_width;
+            dst.h = ctx->arrow_height;
+
+            if (value == SDL_MIN_SINT16) {
+                SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
+            } else {
+                SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
+            }
+            SDL_RenderTextureRotated(ctx->renderer, ctx->arrow_texture, NULL, &dst, 0.0f, NULL, SDL_FLIP_HORIZONTAL);
+
+            dst.x += ctx->arrow_width;
+
+            SDL_SetRenderDrawColor(ctx->renderer, 200, 200, 200, SDL_ALPHA_OPAQUE);
+            rect.x = dst.x + arrow_extent - 2.0f;
+            rect.y = dst.y;
+            rect.w = 4.0f;
+            rect.h = ctx->arrow_height;
+            SDL_RenderFillRect(ctx->renderer, &rect);
+            SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+
+            if (value < 0) {
+                SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
+                rect.w = ((float)value / SDL_MIN_SINT16) * arrow_extent;
+                rect.x = dst.x + arrow_extent - rect.w;
+                rect.y = dst.y + ctx->arrow_height * 0.25f;
+                rect.h = ctx->arrow_height / 2.0f;
+                SDL_RenderFillRect(ctx->renderer, &rect);
+            }
+
+            dst.x += arrow_extent;
+
+            if (value > 0) {
+                SDL_SetRenderDrawColor(ctx->renderer, 8, 200, 16, SDL_ALPHA_OPAQUE);
+                rect.w = ((float)value / SDL_MAX_SINT16) * arrow_extent;
+                rect.x = dst.x;
+                rect.y = dst.y + ctx->arrow_height * 0.25f;
+                rect.h = ctx->arrow_height / 2.0f;
+                SDL_RenderFillRect(ctx->renderer, &rect);
+            }
+
+            dst.x += arrow_extent;
+
+            if (value == SDL_MAX_SINT16) {
+                SDL_SetTextureColorMod(ctx->arrow_texture, 10, 255, 21);
+            } else {
+                SDL_SetTextureColorMod(ctx->arrow_texture, 255, 255, 255);
+            }
+            SDL_RenderTexture(ctx->renderer, ctx->arrow_texture, NULL, &dst);
+
+            SDL_SetRenderDrawColor(ctx->renderer, r, g, b, a);
+
+            y += ctx->button_height + 2;
+        }
+    }
+
+    y += FONT_LINE_HEIGHT + 2;
+
+    if (nhats > 0) {
+        SDLTest_DrawString(ctx->renderer, x, y, "HATS");
+        y += FONT_LINE_HEIGHT + 2 + 1.5f * ctx->button_height - FONT_CHARACTER_SIZE / 2;
+
+        for (i = 0; i < nhats; ++i) {
+            Uint8 value = SDL_GetJoystickHat(joystick, i);
+
+            SDL_snprintf(text, sizeof(text), "%d:", i);
+            SDLTest_DrawString(ctx->renderer, x, y, text);
+
+            if (value & SDL_HAT_LEFT) {
+                SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
+            } else if (!SetupJoystickHatHighlight(ctx, i, SDL_HAT_LEFT)) {
+                SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
+            }
+
+            dst.x = x + FONT_CHARACTER_SIZE * SDL_strlen(text) + 2;
+            dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            dst.w = ctx->button_width;
+            dst.h = ctx->button_height;
+            SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+
+            if (value & SDL_HAT_UP) {
+                SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
+            } else if (!SetupJoystickHatHighlight(ctx, i, SDL_HAT_UP)) {
+                SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
+            }
+
+            dst.x += ctx->button_width;
+            dst.y -= ctx->button_height;
+            SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+
+            if (value & SDL_HAT_DOWN) {
+                SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
+            } else if (!SetupJoystickHatHighlight(ctx, i, SDL_HAT_DOWN)) {
+                SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
+            }
+
+            dst.y += ctx->button_height * 2;
+            SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+
+            if (value & SDL_HAT_RIGHT) {
+                SDL_SetTextureColorMod(ctx->button_texture, 10, 255, 21);
+            } else if (!SetupJoystickHatHighlight(ctx, i, SDL_HAT_RIGHT)) {
+                SDL_SetTextureColorMod(ctx->button_texture, 255, 255, 255);
+            }
+
+            dst.x += ctx->button_width;
+            dst.y = y + FONT_CHARACTER_SIZE / 2 - ctx->button_height / 2;
+            SDL_RenderTexture(ctx->renderer, ctx->button_texture, NULL, &dst);
+
+            y += 3 * ctx->button_height + 2;
+        }
+    }
+}
+
+void DestroyJoystickDisplay(JoystickDisplay *ctx)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_DestroyTexture(ctx->button_texture);
+    SDL_DestroyTexture(ctx->arrow_texture);
+    SDL_free(ctx);
+}
+
+
+struct GamepadButton
+{
+    SDL_Renderer *renderer;
+    SDL_Texture *background;
+    float background_width;
+    float background_height;
+
+    SDL_FRect area;
+
+    char *label;
+    float label_width;
+    float label_height;
+
+    bool highlight;
+    bool pressed;
+};
+
+GamepadButton *CreateGamepadButton(SDL_Renderer *renderer, const char *label)
+{
+    GamepadButton *ctx = SDL_calloc(1, sizeof(*ctx));
+    if (ctx) {
+        ctx->renderer = renderer;
+
+        ctx->background = CreateTexture(renderer, gamepad_button_background_bmp, gamepad_button_background_bmp_len);
+        SDL_GetTextureSize(ctx->background, &ctx->background_width, &ctx->background_height);
+
+        ctx->label = SDL_strdup(label);
+        ctx->label_width = (float)(FONT_CHARACTER_SIZE * SDL_strlen(label));
+        ctx->label_height = (float)FONT_CHARACTER_SIZE;
+    }
+    return ctx;
+}
+
+void SetGamepadButtonArea(GamepadButton *ctx, const SDL_FRect *area)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_copyp(&ctx->area, area);
+}
+
+void GetGamepadButtonArea(GamepadButton *ctx, SDL_FRect *area)
+{
+    if (!ctx) {
+        SDL_zerop(area);
+        return;
+    }
+
+    SDL_copyp(area, &ctx->area);
+}
+
+void SetGamepadButtonHighlight(GamepadButton *ctx, bool highlight, bool pressed)
+{
+    if (!ctx) {
+        return;
+    }
+
+    ctx->highlight = highlight;
+    if (highlight) {
+        ctx->pressed = pressed;
+    } else {
+        ctx->pressed = false;
+    }
+}
+
+float GetGamepadButtonLabelWidth(GamepadButton *ctx)
+{
+    if (!ctx) {
+        return 0;
+    }
+
+    return ctx->label_width;
+}
+
+float GetGamepadButtonLabelHeight(GamepadButton *ctx)
+{
+    if (!ctx) {
+        return 0;
+    }
+
+    return ctx->label_height;
+}
+
+bool GamepadButtonContains(GamepadButton *ctx, float x, float y)
+{
+    SDL_FPoint point;
+
+    if (!ctx) {
+        return false;
+    }
+
+    point.x = x;
+    point.y = y;
+    return SDL_PointInRectFloat(&point, &ctx->area);
+}
+
+void RenderGamepadButton(GamepadButton *ctx)
+{
+    SDL_FRect src, dst;
+    float one_third_src_width;
+    float one_third_src_height;
+
+    if (!ctx) {
+        return;
+    }
+
+    one_third_src_width = ctx->background_width / 3;
+    one_third_src_height = ctx->background_height / 3;
+
+    if (ctx->pressed) {
+        SDL_SetTextureColorMod(ctx->background, PRESSED_TEXTURE_MOD);
+    } else if (ctx->highlight) {
+        SDL_SetTextureColorMod(ctx->background, HIGHLIGHT_TEXTURE_MOD);
+    } else {
+        SDL_SetTextureColorMod(ctx->background, 255, 255, 255);
+    }
+
+    /* Top left */
+    src.x = 0.0f;
+    src.y = 0.0f;
+    src.w = one_third_src_width;
+    src.h = one_third_src_height;
+    dst.x = ctx->area.x;
+    dst.y = ctx->area.y;
+    dst.w = src.w;
+    dst.h = src.h;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Bottom left */
+    src.y = ctx->background_height - src.h;
+    dst.y = ctx->area.y + ctx->area.h - dst.h;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Bottom right */
+    src.x = ctx->background_width - src.w;
+    dst.x = ctx->area.x + ctx->area.w - dst.w;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Top right */
+    src.y = 0.0f;
+    dst.y = ctx->area.y;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Left */
+    src.x = 0.0f;
+    src.y = one_third_src_height;
+    dst.x = ctx->area.x;
+    dst.y = ctx->area.y + one_third_src_height;
+    dst.w = one_third_src_width;
+    dst.h = ctx->area.h - 2 * one_third_src_height;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Right */
+    src.x = ctx->background_width - one_third_src_width;
+    dst.x = ctx->area.x + ctx->area.w - one_third_src_width;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Top */
+    src.x = one_third_src_width;
+    src.y = 0.0f;
+    dst.x = ctx->area.x + one_third_src_width;
+    dst.y = ctx->area.y;
+    dst.w = ctx->area.w - 2 * one_third_src_width;
+    dst.h = one_third_src_height;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Bottom */
+    src.y = ctx->background_height - src.h;
+    dst.y = ctx->area.y + ctx->area.h - one_third_src_height;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Center */
+    src.x = one_third_src_width;
+    src.y = one_third_src_height;
+    dst.x = ctx->area.x + one_third_src_width;
+    dst.y = ctx->area.y + one_third_src_height;
+    dst.w = ctx->area.w - 2 * one_third_src_width;
+    dst.h = ctx->area.h - 2 * one_third_src_height;
+    SDL_RenderTexture(ctx->renderer, ctx->background, &src, &dst);
+
+    /* Label */
+    dst.x = ctx->area.x + ctx->area.w / 2 - ctx->label_width / 2;
+    dst.y = ctx->area.y + ctx->area.h / 2 - ctx->label_height / 2;
+    SDLTest_DrawString(ctx->renderer, dst.x, dst.y, ctx->label);
+}
+
+void DestroyGamepadButton(GamepadButton *ctx)
+{
+    if (!ctx) {
+        return;
+    }
+
+    SDL_DestroyTexture(ctx->background);
+    SDL_free(ctx->label);
+    SDL_free(ctx);
+}
+
+
+typedef struct
+{
+    char *guid;
+    char *name;
+    int num_elements;
+    char **keys;
+    char **values;
+} MappingParts;
+
+static bool AddMappingKeyValue(MappingParts *parts, char *key, char *value);
+
+static bool AddMappingHalfAxisValue(MappingParts *parts, const char *key, const char *value, char sign)
+{
+    char *new_key, *new_value;
+
+    if (SDL_asprintf(&new_key, "%c%s", sign, key) < 0) {
+        return false;
+    }
+
+    if (*value && value[SDL_strlen(value) - 1] == '~') {
+        /* Invert the sign of the bound axis */
+        if (sign == '+') {
+            sign = '-';
+        } else {
+            sign = '+';
+        }
+    }
+
+    if (SDL_asprintf(&new_value, "%c%s", sign, value) < 0) {
+        SDL_free(new_key);
+        return false;
+    }
+    if (new_value[SDL_strlen(new_value) - 1] == '~') {
+        new_value[SDL_strlen(new_value) - 1] = '\0';
+    }
+
+    return AddMappingKeyValue(parts, new_key, new_value);
+}
+
+static bool AddMappingKeyValue(MappingParts *parts, char *key, char *value)
+{
+    int axis;
+    char **new_keys, **new_values;
+
+    if (!key || !value) {
+        SDL_free(key);
+        SDL_free(value);
+        return false;
+    }
+
+    /* Split axis values for easy binding purposes */
+    for (axis = 0; axis < SDL_GAMEPAD_AXIS_LEFT_TRIGGER; ++axis) {
+        if (SDL_strcmp(key, SDL_GetGamepadStringForAxis((SDL_GamepadAxis)axis)) == 0) {
+            bool result;
+
+            result = AddMappingHalfAxisValue(parts, key, value, '-') &&
+                     AddMappingHalfAxisValue(parts, key, value, '+');
+            SDL_free(key);
+            SDL_free(value);
+            return result;
+        }
+    }
+
+    new_keys = (char **)SDL_realloc(parts->keys, (parts->num_elements + 1) * sizeof(*new_keys));
+    if (!new_keys) {
+        return false;
+    }
+    parts->keys = new_keys;
+
+    new_values = (char **)SDL_realloc(parts->values, (parts->num_elements + 1) * sizeof(*new_values));
+    if (!new_values) {
+        return false;
+    }
+    parts->values = new_values;
+
+    new_keys[parts->num_elements] = key;
+    new_values[parts->num_elements] = value;
+    ++parts->num_elements;
+    return true;
+}
+
+static void SplitMapping(const char *mapping, MappingParts *parts)
+{
+    const char *current, *comma, *colon, *key, *value;
+    char *new_key, *new_value;
+
+    SDL_zerop(parts);
+
+    if (!mapping || !*mapping) {
+        return;
+    }
+
+    /* Get the guid */
+    current = mapping;
+    comma = SDL_strchr(current, ',');
+    if (!comma) {
+        parts->guid = SDL_strdup(current);
+        return;
+    }
+    parts->guid = SDL_strndup(current, (comma - current));
+    current = comma + 1;
+
+    /* Get the name */
+    comma = SDL_strchr(current, ',');
+    if (!comma) {
+        parts->name = SDL_strdup(current);
+        return;
+    }
+    if (*current != '*') {
+        parts->name = SDL_strndup(current, (comma - current));
+    }
+    current = comma + 1;
+
+    for (;;) {
+        colon = SDL_strchr(current, ':');
+        if (!colon) {
+            break;
+        }
+
+        key = current;
+        value = colon + 1;
+        comma = SDL_strchr(value, ',');
+
+        new_key = SDL_strndup(key, (colon - key));
+        if (comma) {
+            new_value = SDL_strndup(value, (comma - value));
+        } else {
+            new_value = SDL_strdup(value);
+        }
+        if (!AddMappingKeyValue(parts, new_key, new_value)) {
+            break;
+        }
+
+        if (comma) {
+            current = comma + 1;
+        } else {
+            break;
+        }
+    }
+}
+
+static int FindMappingKey(const MappingParts *parts, const char *key)
+{
+    int i;
+
+    if (key) {
+        for (i = 0; i < parts->num_elements; ++i) {
+            if (SDL_strcmp(key, parts->keys[i]) == 0) {
+                return i;
+            }
+        }
+    }
+    return -1;
+}
+
+static void RemoveMappingValueAt(MappingParts *parts, int index)
+{
+    SDL_free(parts->keys[index]);
+    SDL_free(parts->values[index]);
+    --parts->num_elements;
+    if (index < parts->num_elements) {
+        SDL_memmove(&parts->keys[index], &parts->keys[index] + 1, (parts->num_elements - index) * sizeof(parts->keys[index]));
+        SDL_memmove(&parts->values[index], &parts->values[index] + 1, (parts->num_elements - index) * sizeof(parts->values[index]));
+    }
+}
+
+static void ConvertBAXYMapping(MappingParts *parts)
+{
+    int i;
+    bool baxy_mapping = false;
+
+    for (i = 0; i < parts->num_elements; ++i) {
+        const char *key = parts->keys[i];
+        const char *value = parts->values[i];
+
+        if (SDL_strcmp(key, "hint") == 0 &&
+            SDL_strcmp(value, "SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1") == 0) {
+            baxy_mapping = true;
+        }
+    }
+
+    if (!baxy_mapping) {
+        return;
+    }
+
+    /* Swap buttons, invert hint */
+    for (i = 0; i < parts->num_elements; ++i) {
+        char *key = parts->keys[i];
+        char *value = parts->values[i];
+
+        if (SDL_strcmp(key, "a") == 0) {
+            parts->keys[i] = SDL_strdup("b");
+            SDL_free(key);
+        } else if (SDL_strcmp(key, "b") == 0) {
+            parts->keys[i] = SDL_strdup("a");
+            SDL_free(key);
+        } else if (SDL_strcmp(key, "x") == 0) {
+            parts->keys[i] = SDL_strdup("y");
+            SDL_free(key);
+        } else if (SDL_strcmp(key, "y") == 0) {
+            parts->keys[i] = SDL_strdup("x");
+            SDL_free(key);
+        } else if (SDL_strcmp(key, "hint") == 0 &&
+                   SDL_strcmp(value, "SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1") == 0) {
+            parts->values[i] = SDL_strdup("!SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1");
+            SDL_free(value);
+        }
+    }
+}
+
+static void UpdateLegacyElements(MappingParts *parts)
+{
+    ConvertBAXYMapping(parts);
+}
+
+static bool CombineMappingAxes(MappingParts *parts)
+{
+    int i, matching, axis;
+
+    for (i = 0; i < parts->num_elements; ++i) {
+        char *key = parts->keys[i];
+        char *current_value;
+        char *matching_key;
+        char *matching_value;
+
+        if (*key != '-' && *key != '+') {
+            continue;
+        }
+
+        for (axis = 0; axis < SDL_GAMEPAD_AXIS_LEFT_TRIGGER; ++axis) {
+            if (SDL_strcmp(key + 1, SDL_GetGamepadStringForAxis((SDL_GamepadAxis)axis)) == 0) {
+                /* Look for a matching axis with the opposite sign */
+                if (SDL_asprintf(&matching_key, "%c%s", (*key == '-' ? '+' : '-'), key + 1) < 0) {
+                    return false;
+                }
+                matching = FindMappingKey(parts, matching_key);
+                if (matching >= 0) {
+                    /* Check to see if they're bound to the same axis */
+                    current_value = parts->values[i];
+                    matching_value = parts->values[matching];
+                    if (((*current_value == '-' && *matching_value == '+') ||
+                         (*current_value == '+' && *matching_value == '-')) &&
+                        SDL_strcmp(current_value + 1, matching_value + 1) == 0) {
+                        /* Combine these axes */
+                        if (*key == *current_value) {
+                            SDL_memmove(current_value, current_value + 1, SDL_strlen(current_value));
+                        } else {
+                            /* Invert the bound axis */
+                            SDL_memmove(current_value, current_value + 1, SDL_strlen(current_value)-1);
+                            current_value[SDL_strlen(current_value) - 1] = '~';
+                        }
+                        SDL_memmove(key, key + 1, SDL_strlen(key));
+                        RemoveMappingValueAt(parts, matching);
+                    }
+                }
+                SDL_free(matching_key);
+                break;
+            }
+        }
+    }
+    return true;
+}
+
+typedef struct
+{
+    MappingParts *parts;
+    int index;
+} MappingSortEntry;
+
+static int SDLCALL SortMapping(const void *a, const void *b)
+{
+    MappingSortEntry *A = (MappingSortEntry *)a;
+    MappingSortEntry *B = (MappingSortEntry *)b;
+    const char *keyA = A->parts->keys[A->index];
+    const char *keyB = B->parts->keys[B->index];
+
+    return SDL_strcmp(keyA, keyB);
+}
+
+static void MoveSortedEntry(const char *key, MappingSortEntry *sort_order, int num_elements, bool front)
+{
+    int i;
+
+    for (i = 0; i < num_elements; ++i) {
+        MappingSortEntry *entry = &sort_order[i];
+        if (SDL_strcmp(key, entry->parts->keys[entry->index]) == 0) {
+            if (front && i != 0) {
+                MappingSortEntry tmp = sort_order[i];
+                SDL_memmove(&sort_order[1], &sort_order[0], sizeof(*sort_order)*i);
+                sort_order[0] = tmp;
+            } else if (!front && i != (num_elements - 1)) {
+                MappingSortEntry tmp = sort_order[i];
+                SDL_memmove(&sort_order[i], &sort_order[i + 1], sizeof(*sort_order)*(num_elements - i - 1));
+                sort_order[num_elements - 1] = tmp;
+            }
+            break;
+        }
+    }
+}
+
+static char *JoinMapping(MappingParts *parts)
+{
+    int i;
+    size_t length;
+    char *mapping;
+    const char *guid;
+    const char *name;
+    MappingSortEntry *sort_order;
+
+    UpdateLegacyElements(parts);
+    CombineMappingAxes(parts);
+
+    guid = parts->guid;
+    if (!guid || !*guid) {
+        guid = "*";
+    }
+
+    name = parts->name;
+    if (!name || !*name) {
+        name = "*";
+    }
+
+    length = SDL_strlen(guid) + 1 + SDL_strlen(name) + 1;
+    for (i = 0; i < parts->num_elements; ++i) {
+        length += SDL_strlen(parts->keys[i]) + 1;
+        length += SDL_strlen(parts->values[i]) + 1;
+    }
+    length += 1;
+
+    /* The sort order is: crc, platform, type, *, sdk, hint */
+    sort_order = SDL_stack_alloc(MappingSortEntry, parts->num_elements);
+    for (i = 0; i < parts->num_elements; ++i) {
+        sort_order[i].parts = parts;
+        sort_order[i].index = i;
+    }
+    SDL_qsort(sort_order, parts->num_elements, sizeof(*sort_order), SortMapping);
+    MoveSortedEntry("type", sort_order, parts->num_elements, true);
+    MoveSortedEntry("platform", sort_order, parts->num_elements, true);
+    MoveSortedEntry("crc", sort_order, parts->num_elements, true);
+    MoveSortedEntry("sdk>=", sort_order, parts->num_elements, false);
+    MoveSortedEntry("sdk<=", sort_order, parts->num_elements, false);
+    MoveSortedEntry("hint", sort_order, parts->num_elements, false);
+
+    /* Move platform to the front */
+
+    mapping = (char *)SDL_malloc(length);
+    if (mapping) {
+        *mapping = '\0';
+        SDL_strlcat(mapping, guid, length);
+        SDL_strlcat(mapping, ",", length);
+        SDL_strlcat(mapping, name, length);
+        SDL_strlcat(mapping, ",", length);
+        for (i = 0; i < parts->num_elements; ++i) {
+            int next = sort_order[i].index;
+            SDL_strlcat(mapping, parts->keys[next], length);
+            SDL_strlcat(mapping, ":", length);
+            SDL_strlcat(mapping, parts->values[next], length);
+            SDL_strlcat(mapping, ",", length);
+        }
+    }
+
+    SDL_stack_free(sort_order);
+
+    return mapping;
+}
+
+static void FreeMappingParts(MappingParts *parts)
+{
+    int i;
+
+    SDL_free(parts->guid);
+    SDL_free(parts->name);
+    for (i = 0; i < parts->num_elements; ++i) {
+        SDL_free(parts->keys[i]);
+        SDL_free(parts->values[i]);
+    }
+    SDL_free(parts->keys);
+    SDL_free(parts->values);
+    SDL_zerop(parts);
+}
+
+/* Create a new mapping from the parts and free the old mapping and parts */
+static char *RecreateMapping(MappingParts *parts, char *mapping)
+{
+    char *new_mapping = JoinMapping(parts);
+    if (new_mapping) {
+        SDL_free(mapping);
+        mapping = new_mapping;
+    }
+    FreeMappingParts(parts);
+    return mapping;
+}
+
+static const char *GetLegacyKey(const char *key, bool baxy)
+{
+    if (SDL_strcmp(key, SDL_GetGamepadStringForButton(SDL_GAMEPAD_BUTTON_SOUTH)) == 0) {
+        if (baxy) {
+            return "b";
+        } else {
+            return "a";
+        }
+    }
+
+    if (SDL_strcmp(key, SDL_GetGamepadStringForButton(SDL_GAMEPAD_BUTTON_EAST)) == 0) {
+        if (baxy) {
+            return "a";
+        } else {
+            return "b";
+        }
+    }
+
+    if (SDL_strcmp(key, SDL_GetGamepadStringForButton(SDL_GAMEPAD_BUTTON_WEST)) == 0) {
+        if (baxy) {
+            return "y";
+        } else {
+            return "x";
+        }
+    }
+
+    if (SDL_strcmp(key, SDL_GetGamepadStringForButton(SDL_GAMEPAD_BUTTON_NORTH)) == 0) {
+        if (baxy) {
+            return "y";
+        } else {
+            return "x";
+        }
+    }
+
+    return key;
+}
+
+static bool MappingHasKey(const char *mapping, const char *key)
+{
+    int i;
+    MappingParts parts;
+    bool result = false;
+
+    SplitMapping(mapping, &parts);
+    i = FindMappingKey(&parts, key);
+    if (i < 0) {
+        bool baxy_mapping = false;
+
+        if (mapping && SDL_strstr(mapping, ",hint:SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1") != NULL) {
+            baxy_mapping = true;
+        }
+        i = FindMappingKey(&parts, GetLegacyKey(key, baxy_mapping));
+    }
+    if (i >= 0) {
+        result = true;
+    }
+    FreeMappingParts(&parts);
+
+    return result;
+}
+
+static char *GetMappingValue(const char *mapping, const char *key)
+{
+    int i;
+    MappingParts parts;
+    char *value = NULL;
+
+    SplitMapping(mapping, &parts);
+    i = FindMappingKey(&parts, key);
+    if (i < 0) {
+        bool baxy_mapping = false;
+
+        if (mapping && SDL_strstr(mapping, ",hint:SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1") != NULL) {
+            baxy_mapping = true;
+        }
+        i = FindMappingKey(&parts, GetLegacyKey(key, baxy_mapping));
+    }
+    if (i >= 0) {
+        value = parts.values[i];
+        parts.values[i] = NULL; /* So we don't free it */
+    }
+    FreeMappingParts(&parts);
+
+    return value;
+}
+
+static char *SetMappingValue(char *mapping, const char *key, const char *value)
+{
+    MappingParts parts;
+    int i;
+    char *new_key = NULL;
+    char *new_value = NULL;
+    char **new_keys = NULL;
+    char **new_values = NULL;
+    bool result = false;
+
+    if (!key) {
+        return mapping;
+    }
+
+    SplitMapping(mapping, &parts);
+    i = FindMappingKey(&parts, key);
+    if (i >= 0) {
+        new_value = SDL_strdup(value);
+        if (new_value) {
+            SDL_free(parts.values[i]);
+            parts.values[i] = new_value;
+            result = true;
+        }
+    } else {
+        int count = parts.num_elements;
+
+        new_key = SDL_strdup(key);
+        if (new_key) {
+            new_value = SDL_strdup(value);
+            if (new_value) {
+                new_keys = (char **)SDL_realloc(parts.keys, (count + 1) * sizeof(*new_keys));
+                if (new_keys) {
+                    new_values = (char **)SDL_realloc(parts.values, (count + 1) * sizeof(*new_values));
+                    if (new_values) {
+                        new_keys[count] = new_key;
+                        new_values[count] = new_value;
+                        parts.num_elements = (count + 1);
+                        parts.keys = new_keys;
+                        parts.values = new_values;
+                        result = true;
+                    }
+                }
+            }
+        }
+    }
+
+    if (result) {
+        mapping = RecreateMapping(&parts, mapping);
+    } else {
+        SDL_free(new_key);
+        SDL_free(new_value);
+        SDL_free(new_keys);
+        SDL_free(new_values);
+    }
+    return mapping;
+}
+
+static char *RemoveMappingValue(char *mapping, const char *key)
+{
+    MappingParts parts;
+    int i;
+
+    SplitMapping(mapping, &parts);
+    i = FindMappingKey(&parts, key);
+    if (i >= 0) {
+        RemoveMappingValueAt(&parts, i);
+    }
+    return RecreateMapping(&parts, mapping);
+}
+
+bool MappingHasBindings(const char *mapping)
+{
+    MappingParts parts;
+    int i;
+    bool result = false;
+
+    if (!mapping || !*mapping) {
+        return false;
+    }
+
+    SplitMapping(mapping, &parts);
+    for (i = 0; i < SDL_GAMEPAD_BUTTON_COUNT; ++i) {
+        if (FindMappingKey(&parts, SDL_GetGamepadStringForButton((SDL_GamepadButton)i)) >= 0) {
+            result = true;
+            break;
+        }
+    }
+    if (!result) {
+        for (i = 0; i < SDL_GAMEPAD_AXIS_COUNT; ++i) {
+            if (FindMappingKey(&parts, SDL_GetGamepadStringForAxis((SDL_GamepadAxis)i)) >= 0) {
+                result = true;
+                break;
+            }
+        }
+    }
+    FreeMappingParts(&parts);
+
+    return result;
+}
+
+bool MappingHasName(const char *mapping)
+{
+    MappingParts parts;
+    bool result;
+
+    SplitMapping(mapping, &parts);
+    result = parts.name ? true : false;
+    FreeMappingParts(&parts);
+    return result;
+}
+
+char *GetMappingName(const char *mapping)
+{
+    MappingParts parts;
+    char *name;
+
+    SplitMapping(mapping, &parts);
+    name = parts.name;
+    parts.name = NULL; /* Don't free the name we're about to return */
+    FreeMappingParts(&parts);
+    return name;
+}
+
+char *SetMappingName(char *mapping, const char *name)
+{
+    MappingParts parts;
+    char *new_name, *spot;
+    size_t length;
+
+    if (!name) {
+        return mapping;
+    }
+
+    /* Remove any leading whitespace */
+    while (*name && SDL_isspace(*name)) {
+        ++name;
+    }
+
+    new_name = SDL_strdup(name);
+    if (!new_name) {
+        return mapping;
+    }
+
+    /* Remove any commas, which are field separators in the mapping */
+    length = SDL_strlen(new_name);
+    while ((spot = SDL_strchr(new_name, ',')) != NULL) {
+        SDL_memmove(spot, spot + 1, length - (spot - new_name) + 1);
+        --length;
+    }
+
+    /* Remove any trailing whitespace */
+    while (length > 0 && SDL_isspace(new_name[length - 1])) {
+        --length;
+    }
+
+    /* See if we have anything left */
+    if (length == 0) {
+        SDL_free(new_name);
+        return mapping;
+    }
+
+    /* null terminate to cut off anything we've trimmed */
+    new_name[length] = '\0';
+
+    SplitMapping(mapping, &parts);
+    SDL_free(parts.name);
+    parts.name = new_name;
+    return RecreateMapping(&parts, mapping);
+}
+
+
+const char *GetGamepadTypeString(SDL_GamepadType type)
+{
+    switch (type) {
+    case SDL_GAMEPAD_TYPE_XBOX360:
+        return "Xbox 360";
+    case SDL_GAMEPAD_TYPE_XBOXONE:
+        return "Xbox One";
+    case SDL_GAMEPAD_TYPE_PS3:
+        return "PS3";
+    case SDL_GAMEPAD_TYPE_PS4:
+        return "PS4";
+    case SDL_GAMEPAD_TYPE_PS5:
+        return "PS5";
+    case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_PRO:
+        return "Nintendo Switch";
+    case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_JOYCON_LEFT:
+        return "Joy-Con (L)";
+    case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_JOYCON_RIGHT:
+        return "Joy-Con (R)";
+    case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_JOYCON_PAIR:
+        return "Joy-Con Pair";
+    default:
+        return "";
+    }
+}
+
+SDL_GamepadType GetMappingType(const char *mapping)
+{
+    return SDL_GetGamepadTypeFromString(GetMappingValue(mapping, "type"));
+}
+
+char *SetMappingType(char *mapping, SDL_GamepadType type)
+{
+    const char *type_string = SDL_GetGamepadStringForType(type);
+    if (!type_string || type == SDL_GAMEPAD_TYPE_UNKNOWN) {
+        return RemoveMappingValue(mapping, "type");
+    } else {
+        return SetMappingValue(mapping, "type", type_string);
+    }
+}
+
+static const char *GetElementKey(int element)
+{
+    if (element < SDL_GAMEPAD_BUTTON_COUNT) {
+        return SDL_GetGamepadStringForButton((SDL_GamepadButton)element);
+    } else {
+        static char key[16];
+
+        switch (element) {
+        case SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_NEGATIVE:
+            SDL_snprintf(key, sizeof(key), "-%s", SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_LEFTX));
+            break;
+        case SDL_GAMEPAD_ELEMENT_AXIS_LEFTX_POSITIVE:
+            SDL_snprintf(key, sizeof(key), "+%s", SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_LEFTX));
+            break;
+        case SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_NEGATIVE:
+            SDL_snprintf(key, sizeof(key), "-%s", SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_LEFTY));
+            break;
+        case SDL_GAMEPAD_ELEMENT_AXIS_LEFTY_POSITIVE:
+            SDL_snprintf(key, sizeof(key), "+%s", SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_LEFTY));
+            break;
+        case SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_NEGATIVE:
+            SDL_snprintf(key, sizeof(key), "-%s", SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_RIGHTX));
+            break;
+        case SDL_GAMEPAD_ELEMENT_AXIS_RIGHTX_POSITIVE:
+            SDL_snprintf(key, sizeof(key), "+%s", SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_RIGHTX));
+            break;
+        case SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_NEGATIVE:
+            SDL_snprintf(key, sizeof(key), "-%s", SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_RIGHTY));
+            break;
+        case SDL_GAMEPAD_ELEMENT_AXIS_RIGHTY_POSITIVE:
+            SDL_snprintf(key, sizeof(key), "+%s", SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_RIGHTY));
+            break;
+        case SDL_GAMEPAD_ELEMENT_AXIS_LEFT_TRIGGER:
+            return SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_LEFT_TRIGGER);
+        case SDL_GAMEPAD_ELEMENT_AXIS_RIGHT_TRIGGER:
+            return SDL_GetGamepadStringForAxis(SDL_GAMEPAD_AXIS_RIGHT_TRIGGER);
+        default:
+            return NULL;
+        }
+        return key;
+    }
+}
+
+bool MappingHasElement(const char *mapping, int element)
+{
+    const char *key;
+
+    key = GetElementKey(element);
+    if (!key) {
+        return false;
+    }
+    return MappingHasKey(mapping, key);
+}
+
+char *GetElementBinding(const char *mapping, int element)
+{
+    const char *key;
+
+    key = GetElementKey(element);
+    if (!key) {
+        return NULL;
+    }
+    return GetMappingValue(mapping, key);
+}
+
+char *SetElementBinding(char *mapping, int element, const char *binding)
+{
+    if (binding) {
+        return SetMappingValue(mapping, GetElementKey(element), binding);
+    } else {
+        return RemoveMappingValue(mapping, GetElementKey(element));
+    }
+}
+
+int GetElementForBinding(char *mapping, const char *binding)
+{
+    MappingParts parts;
+    int i, element;
+    int result = SDL_GAMEPAD_ELEMENT_INVALID;
+
+    if (!binding) {
+        return SDL_GAMEPAD_ELEMENT_INVALID;
+    }
+
+    SplitMapping(mapping, &parts);
+    for (i = 0; i < parts.num_elements; ++i) {
+        if (SDL_strcmp(binding, parts.values[i]) == 0) {
+            for (element = 0; element < SDL_GAMEPAD_ELEMENT_MAX; ++element) {
+                const char *key = GetElementKey(element);
+                if (key && SDL_strcmp(key, parts.keys[i]) == 0) {
+                    result = element;
+                    break;
+                }
+            }
+            break;
+        }
+    }
+    FreeMappingParts(&parts);
+
+    return result;
+}
+
+bool MappingHasBinding(const char *mapping, const char *binding)
+{
+    MappingParts parts;
+    int i;
+    bool result = false;
+
+    if (!binding) {
+        return false;
+    }
+
+    SplitMapping(mapping, &parts);
+    for (i = 0; i < parts.num_elements; ++i) {
+        if (SDL_strcmp(binding, parts.values[i]) == 0) {
+            result = true;
+            break;
+        }
+    }
+    FreeMappingParts(&parts);
+
+    return result;
+}
+
+char *ClearMappingBinding(char *mapping, const char *binding)
+{
+    MappingParts parts;
+    int i;
+    bool modified = false;
+
+    if (!binding) {
+        return mapping;
+    }
+
+    SplitMapping(mapping, &parts);
+    for (i = parts.num_elements - 1; i >= 0; --i) {
+        if (SDL_strcmp(binding, parts.values[i]) == 0) {
+            RemoveMappingValueAt(&parts, i);
+            modified = true;
+        }
+    }
+    if (modified) {
+        return RecreateMapping(&parts, mapping);
+    } else {
+        FreeMappingParts(&parts);
+        return mapping;
+    }
+}