/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
*/

/* Ported from original test/common.c file. */
#include <SDL3/SDL_test.h>

static const char *video_usage[] = {
    "[--video driver]", "[--renderer driver]", "[--gldebug]",
    "[--info all|video|modes|render|event|event_motion]",
    "[--log all|error|system|audio|video|render|input]", "[--display N]",
    "[--metal-window | --opengl-window | --vulkan-window]",
    "[--fullscreen | --fullscreen-desktop | --windows N]", "[--title title]",
    "[--icon icon.bmp]", "[--center | --position X,Y]", "[--geometry WxH]",
    "[--min-geometry WxH]", "[--max-geometry WxH]", "[--logical WxH]",
    "[--logical-presentation disabled|match|stretch|letterbox|overscan|integer_scale]",
    "[--logical-scale-quality nearest|linear|best]",
    "[--scale N]", "[--depth N]", "[--refresh R]", "[--vsync]", "[--noframe]",
    "[--resizable]", "[--minimize]", "[--maximize]", "[--grab]", "[--keyboard-grab]",
    "[--hidden]", "[--input-focus]", "[--mouse-focus]",
    "[--flash-on-focus-loss]", "[--allow-highdpi]", "[--confine-cursor X,Y,W,H]",
    "[--usable-bounds]"
};

static const char *audio_usage[] = {
    "[--rate N]", "[--format U8|S8|U16|U16LE|U16BE|S16|S16LE|S16BE]",
    "[--channels N]", "[--samples N]"
};

static void SDL_snprintfcat(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, ...)
{
    size_t length = SDL_strlen(text);
    va_list ap;

    va_start(ap, fmt);
    text += length;
    maxlen -= length;
    (void)SDL_vsnprintf(text, maxlen, fmt, ap);
    va_end(ap);
}

SDLTest_CommonState *
SDLTest_CommonCreateState(char **argv, Uint32 flags)
{
    int i;
    SDLTest_CommonState *state;

    /* Do this first so we catch all allocations */
    for (i = 1; argv[i]; ++i) {
        if (SDL_strcasecmp(argv[i], "--trackmem") == 0) {
            SDLTest_TrackAllocations();
            break;
        }
    }

    state = (SDLTest_CommonState *)SDL_calloc(1, sizeof(*state));
    if (state == NULL) {
        SDL_OutOfMemory();
        return NULL;
    }

    /* Initialize some defaults */
    state->argv = argv;
    state->flags = flags;
    state->window_title = argv[0];
    state->window_flags = 0;
    state->window_x = SDL_WINDOWPOS_UNDEFINED;
    state->window_y = SDL_WINDOWPOS_UNDEFINED;
    state->window_w = DEFAULT_WINDOW_WIDTH;
    state->window_h = DEFAULT_WINDOW_HEIGHT;
    state->logical_presentation = SDL_LOGICAL_PRESENTATION_MATCH;
    state->logical_scale_mode = SDL_SCALEMODE_LINEAR;
    state->num_windows = 1;
    state->audiospec.freq = 22050;
    state->audiospec.format = AUDIO_S16;
    state->audiospec.channels = 2;
    state->audiospec.samples = 2048;

    /* Set some very sane GL defaults */
    state->gl_red_size = 3;
    state->gl_green_size = 3;
    state->gl_blue_size = 2;
    state->gl_alpha_size = 0;
    state->gl_buffer_size = 0;
    state->gl_depth_size = 16;
    state->gl_stencil_size = 0;
    state->gl_double_buffer = 1;
    state->gl_accum_red_size = 0;
    state->gl_accum_green_size = 0;
    state->gl_accum_blue_size = 0;
    state->gl_accum_alpha_size = 0;
    state->gl_stereo = 0;
    state->gl_multisamplebuffers = 0;
    state->gl_multisamplesamples = 0;
    state->gl_retained_backing = 1;
    state->gl_accelerated = -1;
    state->gl_debug = 0;

    return state;
}

#define SEARCHARG(dim)                  \
    while (*(dim) && *(dim) != ',') {   \
        ++(dim);                        \
    }                                   \
    if (!*(dim)) {                      \
        return -1;                      \
    }                                   \
    *(dim)++ = '\0';

int SDLTest_CommonArg(SDLTest_CommonState *state, int index)
{
    char **argv = state->argv;

    if (SDL_strcasecmp(argv[index], "--video") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->videodriver = argv[index];
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--renderer") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->renderdriver = argv[index];
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--gldebug") == 0) {
        state->gl_debug = 1;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--info") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        if (SDL_strcasecmp(argv[index], "all") == 0) {
            state->verbose |=
                (VERBOSE_VIDEO | VERBOSE_MODES | VERBOSE_RENDER |
                 VERBOSE_EVENT);
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "video") == 0) {
            state->verbose |= VERBOSE_VIDEO;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "modes") == 0) {
            state->verbose |= VERBOSE_MODES;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "render") == 0) {
            state->verbose |= VERBOSE_RENDER;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "event") == 0) {
            state->verbose |= VERBOSE_EVENT;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "event_motion") == 0) {
            state->verbose |= (VERBOSE_EVENT | VERBOSE_MOTION);
            return 2;
        }
        return -1;
    }
    if (SDL_strcasecmp(argv[index], "--log") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        if (SDL_strcasecmp(argv[index], "all") == 0) {
            SDL_LogSetAllPriority(SDL_LOG_PRIORITY_VERBOSE);
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "error") == 0) {
            SDL_LogSetPriority(SDL_LOG_CATEGORY_ERROR, SDL_LOG_PRIORITY_VERBOSE);
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "system") == 0) {
            SDL_LogSetPriority(SDL_LOG_CATEGORY_SYSTEM, SDL_LOG_PRIORITY_VERBOSE);
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "audio") == 0) {
            SDL_LogSetPriority(SDL_LOG_CATEGORY_AUDIO, SDL_LOG_PRIORITY_VERBOSE);
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "video") == 0) {
            SDL_LogSetPriority(SDL_LOG_CATEGORY_VIDEO, SDL_LOG_PRIORITY_VERBOSE);
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "render") == 0) {
            SDL_LogSetPriority(SDL_LOG_CATEGORY_RENDER, SDL_LOG_PRIORITY_VERBOSE);
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "input") == 0) {
            SDL_LogSetPriority(SDL_LOG_CATEGORY_INPUT, SDL_LOG_PRIORITY_VERBOSE);
            return 2;
        }
        return -1;
    }
    if (SDL_strcasecmp(argv[index], "--display") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->display_index = SDL_atoi(argv[index]);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--metal-window") == 0) {
        state->window_flags |= SDL_WINDOW_METAL;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--opengl-window") == 0) {
        state->window_flags |= SDL_WINDOW_OPENGL;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--vulkan-window") == 0) {
        state->window_flags |= SDL_WINDOW_VULKAN;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--fullscreen") == 0) {
        state->window_flags |= SDL_WINDOW_FULLSCREEN;
        state->fullscreen_exclusive = SDL_TRUE;
        state->num_windows = 1;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--fullscreen-desktop") == 0) {
        state->window_flags |= SDL_WINDOW_FULLSCREEN;
        state->fullscreen_exclusive = SDL_FALSE;
        state->num_windows = 1;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--windows") == 0) {
        ++index;
        if (!argv[index] || !SDL_isdigit((unsigned char)*argv[index])) {
            return -1;
        }
        if (!(state->window_flags & SDL_WINDOW_FULLSCREEN)) {
            state->num_windows = SDL_atoi(argv[index]);
        }
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--title") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->window_title = argv[index];
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--icon") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->window_icon = argv[index];
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--center") == 0) {
        state->window_x = SDL_WINDOWPOS_CENTERED;
        state->window_y = SDL_WINDOWPOS_CENTERED;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--position") == 0) {
        char *x, *y;
        ++index;
        if (!argv[index]) {
            return -1;
        }
        x = argv[index];
        y = argv[index];
        while (*y && *y != ',') {
            ++y;
        }
        if (!*y) {
            return -1;
        }
        *y++ = '\0';
        state->window_x = SDL_atoi(x);
        state->window_y = SDL_atoi(y);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--confine-cursor") == 0) {
        char *x, *y, *w, *h;
        ++index;
        if (!argv[index]) {
            return -1;
        }
        x = argv[index];
        y = argv[index];
        SEARCHARG(y)
        w = y;
        SEARCHARG(w)
        h = w;
        SEARCHARG(h)
        state->confine.x = SDL_atoi(x);
        state->confine.y = SDL_atoi(y);
        state->confine.w = SDL_atoi(w);
        state->confine.h = SDL_atoi(h);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--usable-bounds") == 0) {
        /* !!! FIXME: this is a bit of a hack, but I don't want to add a
           !!! FIXME:  flag to the public structure in 2.0.x */
        state->window_x = -1;
        state->window_y = -1;
        state->window_w = -1;
        state->window_h = -1;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--geometry") == 0) {
        char *w, *h;
        ++index;
        if (!argv[index]) {
            return -1;
        }
        w = argv[index];
        h = argv[index];
        while (*h && *h != 'x') {
            ++h;
        }
        if (!*h) {
            return -1;
        }
        *h++ = '\0';
        state->window_w = SDL_atoi(w);
        state->window_h = SDL_atoi(h);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--min-geometry") == 0) {
        char *w, *h;
        ++index;
        if (!argv[index]) {
            return -1;
        }
        w = argv[index];
        h = argv[index];
        while (*h && *h != 'x') {
            ++h;
        }
        if (!*h) {
            return -1;
        }
        *h++ = '\0';
        state->window_minW = SDL_atoi(w);
        state->window_minH = SDL_atoi(h);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--max-geometry") == 0) {
        char *w, *h;
        ++index;
        if (!argv[index]) {
            return -1;
        }
        w = argv[index];
        h = argv[index];
        while (*h && *h != 'x') {
            ++h;
        }
        if (!*h) {
            return -1;
        }
        *h++ = '\0';
        state->window_maxW = SDL_atoi(w);
        state->window_maxH = SDL_atoi(h);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--logical") == 0) {
        char *w, *h;
        ++index;
        if (!argv[index]) {
            return -1;
        }
        w = argv[index];
        h = argv[index];
        while (*h && *h != 'x') {
            ++h;
        }
        if (!*h) {
            return -1;
        }
        *h++ = '\0';
        state->logical_w = SDL_atoi(w);
        state->logical_h = SDL_atoi(h);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--logical-presentation") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        if (SDL_strcasecmp(argv[index], "disabled") == 0) {
            state->logical_presentation = SDL_LOGICAL_PRESENTATION_DISABLED;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "match") == 0) {
            state->logical_presentation = SDL_LOGICAL_PRESENTATION_MATCH;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "stretch") == 0) {
            state->logical_presentation = SDL_LOGICAL_PRESENTATION_STRETCH;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "letterbox") == 0) {
            state->logical_presentation = SDL_LOGICAL_PRESENTATION_LETTERBOX;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "overscan") == 0) {
            state->logical_presentation = SDL_LOGICAL_PRESENTATION_OVERSCAN;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "integer_scale") == 0) {
            state->logical_presentation = SDL_LOGICAL_PRESENTATION_INTEGER_SCALE;
            return 2;
        }
        return -1;
    }
    if (SDL_strcasecmp(argv[index], "--logical-scale-quality") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        if (SDL_strcasecmp(argv[index], "nearest") == 0) {
            state->logical_scale_mode = SDL_SCALEMODE_NEAREST;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "linear") == 0) {
            state->logical_scale_mode = SDL_SCALEMODE_LINEAR;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "best") == 0) {
            state->logical_scale_mode = SDL_SCALEMODE_BEST;
            return 2;
        }
        return -1;
    }
    if (SDL_strcasecmp(argv[index], "--scale") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->scale = (float)SDL_atof(argv[index]);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--depth") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->depth = SDL_atoi(argv[index]);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--refresh") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->refresh_rate = (float)SDL_atof(argv[index]);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--vsync") == 0) {
        state->render_flags |= SDL_RENDERER_PRESENTVSYNC;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--noframe") == 0) {
        state->window_flags |= SDL_WINDOW_BORDERLESS;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--resizable") == 0) {
        state->window_flags |= SDL_WINDOW_RESIZABLE;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--minimize") == 0) {
        state->window_flags |= SDL_WINDOW_MINIMIZED;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--maximize") == 0) {
        state->window_flags |= SDL_WINDOW_MAXIMIZED;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--hidden") == 0) {
        state->window_flags |= SDL_WINDOW_HIDDEN;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--input-focus") == 0) {
        state->window_flags |= SDL_WINDOW_INPUT_FOCUS;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--mouse-focus") == 0) {
        state->window_flags |= SDL_WINDOW_MOUSE_FOCUS;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--flash-on-focus-loss") == 0) {
        state->flash_on_focus_loss = SDL_TRUE;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--grab") == 0) {
        state->window_flags |= SDL_WINDOW_MOUSE_GRABBED;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--keyboard-grab") == 0) {
        state->window_flags |= SDL_WINDOW_KEYBOARD_GRABBED;
        return 1;
    }
    if (SDL_strcasecmp(argv[index], "--rate") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->audiospec.freq = SDL_atoi(argv[index]);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--format") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        if (SDL_strcasecmp(argv[index], "U8") == 0) {
            state->audiospec.format = AUDIO_U8;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "S8") == 0) {
            state->audiospec.format = AUDIO_S8;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "U16") == 0) {
            state->audiospec.format = AUDIO_U16;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "U16LE") == 0) {
            state->audiospec.format = AUDIO_U16LSB;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "U16BE") == 0) {
            state->audiospec.format = AUDIO_U16MSB;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "S16") == 0) {
            state->audiospec.format = AUDIO_S16;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "S16LE") == 0) {
            state->audiospec.format = AUDIO_S16LSB;
            return 2;
        }
        if (SDL_strcasecmp(argv[index], "S16BE") == 0) {
            state->audiospec.format = AUDIO_S16MSB;
            return 2;
        }
        return -1;
    }
    if (SDL_strcasecmp(argv[index], "--channels") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->audiospec.channels = (Uint8)SDL_atoi(argv[index]);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--samples") == 0) {
        ++index;
        if (!argv[index]) {
            return -1;
        }
        state->audiospec.samples = (Uint16)SDL_atoi(argv[index]);
        return 2;
    }
    if (SDL_strcasecmp(argv[index], "--trackmem") == 0) {
        /* Already handled in SDLTest_CommonCreateState() */
        return 1;
    }
    if ((SDL_strcasecmp(argv[index], "-h") == 0) || (SDL_strcasecmp(argv[index], "--help") == 0)) {
        /* Print the usage message */
        return -1;
    }
    if (SDL_strcmp(argv[index], "-NSDocumentRevisionsDebugMode") == 0) {
        /* Debug flag sent by Xcode */
        return 2;
    }
    return 0;
}

void SDLTest_CommonLogUsage(SDLTest_CommonState *state, const char *argv0, const char **options)
{
    int i;

    SDL_Log("USAGE: %s", argv0);
    SDL_Log("    %s", "[--trackmem]");

    if (state->flags & SDL_INIT_VIDEO) {
        for (i = 0; i < SDL_arraysize(video_usage); i++) {
            SDL_Log("    %s", video_usage[i]);
        }
    }

    if (state->flags & SDL_INIT_AUDIO) {
        for (i = 0; i < SDL_arraysize(audio_usage); i++) {
            SDL_Log("    %s", audio_usage[i]);
        }
    }

    if (options) {
        for (i = 0; options[i] != NULL; i++) {
            SDL_Log("    %s", options[i]);
        }
    }
}

static const char *BuildCommonUsageString(char **pstr, const char **strlist, const int numitems, const char **strlist2, const int numitems2)
{
    char *str = *pstr;
    if (str == NULL) {
        size_t len = SDL_strlen("[--trackmem]") + 2;
        int i;
        for (i = 0; i < numitems; i++) {
            len += SDL_strlen(strlist[i]) + 1;
        }
        if (strlist2) {
            for (i = 0; i < numitems2; i++) {
                len += SDL_strlen(strlist2[i]) + 1;
            }
        }
        str = (char *)SDL_calloc(1, len);
        if (str == NULL) {
            return ""; /* oh well. */
        }
        SDL_strlcat(str, "[--trackmem] ", len);
        for (i = 0; i < numitems - 1; i++) {
            SDL_strlcat(str, strlist[i], len);
            SDL_strlcat(str, " ", len);
        }
        SDL_strlcat(str, strlist[i], len);
        if (strlist2) {
            SDL_strlcat(str, " ", len);
            for (i = 0; i < numitems2 - 1; i++) {
                SDL_strlcat(str, strlist2[i], len);
                SDL_strlcat(str, " ", len);
            }
            SDL_strlcat(str, strlist2[i], len);
        }
        *pstr = str;
    }
    return str;
}

static char *common_usage_video = NULL;
static char *common_usage_audio = NULL;
static char *common_usage_videoaudio = NULL;

const char *
SDLTest_CommonUsage(SDLTest_CommonState *state)
{

    switch (state->flags & (SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
    case SDL_INIT_VIDEO:
        return BuildCommonUsageString(&common_usage_video, video_usage, SDL_arraysize(video_usage), NULL, 0);
    case SDL_INIT_AUDIO:
        return BuildCommonUsageString(&common_usage_audio, audio_usage, SDL_arraysize(audio_usage), NULL, 0);
    case (SDL_INIT_VIDEO | SDL_INIT_AUDIO):
        return BuildCommonUsageString(&common_usage_videoaudio, video_usage, SDL_arraysize(video_usage), audio_usage, SDL_arraysize(audio_usage));
    default:
        return "[--trackmem]";
    }
}

SDL_bool
SDLTest_CommonDefaultArgs(SDLTest_CommonState *state, const int argc, char **argv)
{
    int i = 1;
    while (i < argc) {
        const int consumed = SDLTest_CommonArg(state, i);
        if (consumed == 0) {
            SDLTest_CommonLogUsage(state, argv[0], NULL);
            return SDL_FALSE;
        }
        i += consumed;
    }
    return SDL_TRUE;
}

static void SDLTest_PrintDisplayOrientation(char *text, size_t maxlen, SDL_DisplayOrientation orientation)
{
    switch (orientation) {
    case SDL_ORIENTATION_UNKNOWN:
        SDL_snprintfcat(text, maxlen, "UNKNOWN");
        break;
    case SDL_ORIENTATION_LANDSCAPE:
        SDL_snprintfcat(text, maxlen, "LANDSCAPE");
        break;
    case SDL_ORIENTATION_LANDSCAPE_FLIPPED:
        SDL_snprintfcat(text, maxlen, "LANDSCAPE_FLIPPED");
        break;
    case SDL_ORIENTATION_PORTRAIT:
        SDL_snprintfcat(text, maxlen, "PORTRAIT");
        break;
    case SDL_ORIENTATION_PORTRAIT_FLIPPED:
        SDL_snprintfcat(text, maxlen, "PORTRAIT_FLIPPED");
        break;
    default:
        SDL_snprintfcat(text, maxlen, "0x%8.8x", orientation);
        break;
    }
}

static void SDLTest_PrintWindowFlag(char *text, size_t maxlen, Uint32 flag)
{
    switch (flag) {
    case SDL_WINDOW_FULLSCREEN:
        SDL_snprintfcat(text, maxlen, "FULLSCREEN");
        break;
    case SDL_WINDOW_OPENGL:
        SDL_snprintfcat(text, maxlen, "OPENGL");
        break;
    case SDL_WINDOW_HIDDEN:
        SDL_snprintfcat(text, maxlen, "HIDDEN");
        break;
    case SDL_WINDOW_BORDERLESS:
        SDL_snprintfcat(text, maxlen, "BORDERLESS");
        break;
    case SDL_WINDOW_RESIZABLE:
        SDL_snprintfcat(text, maxlen, "RESIZABLE");
        break;
    case SDL_WINDOW_MINIMIZED:
        SDL_snprintfcat(text, maxlen, "MINIMIZED");
        break;
    case SDL_WINDOW_MAXIMIZED:
        SDL_snprintfcat(text, maxlen, "MAXIMIZED");
        break;
    case SDL_WINDOW_MOUSE_GRABBED:
        SDL_snprintfcat(text, maxlen, "MOUSE_GRABBED");
        break;
    case SDL_WINDOW_INPUT_FOCUS:
        SDL_snprintfcat(text, maxlen, "INPUT_FOCUS");
        break;
    case SDL_WINDOW_MOUSE_FOCUS:
        SDL_snprintfcat(text, maxlen, "MOUSE_FOCUS");
        break;
    case SDL_WINDOW_FOREIGN:
        SDL_snprintfcat(text, maxlen, "FOREIGN");
        break;
    case SDL_WINDOW_MOUSE_CAPTURE:
        SDL_snprintfcat(text, maxlen, "MOUSE_CAPTURE");
        break;
    case SDL_WINDOW_ALWAYS_ON_TOP:
        SDL_snprintfcat(text, maxlen, "ALWAYS_ON_TOP");
        break;
    case SDL_WINDOW_SKIP_TASKBAR:
        SDL_snprintfcat(text, maxlen, "SKIP_TASKBAR");
        break;
    case SDL_WINDOW_UTILITY:
        SDL_snprintfcat(text, maxlen, "UTILITY");
        break;
    case SDL_WINDOW_TOOLTIP:
        SDL_snprintfcat(text, maxlen, "TOOLTIP");
        break;
    case SDL_WINDOW_POPUP_MENU:
        SDL_snprintfcat(text, maxlen, "POPUP_MENU");
        break;
    case SDL_WINDOW_KEYBOARD_GRABBED:
        SDL_snprintfcat(text, maxlen, "KEYBOARD_GRABBED");
        break;
    case SDL_WINDOW_VULKAN:
        SDL_snprintfcat(text, maxlen, "VULKAN");
        break;
    case SDL_WINDOW_METAL:
        SDL_snprintfcat(text, maxlen, "METAL");
        break;
    default:
        SDL_snprintfcat(text, maxlen, "0x%8.8x", flag);
        break;
    }
}

static void SDLTest_PrintWindowFlags(char *text, size_t maxlen, Uint32 flags)
{
    const Uint32 window_flags[] = {
        SDL_WINDOW_FULLSCREEN,
        SDL_WINDOW_OPENGL,
        SDL_WINDOW_HIDDEN,
        SDL_WINDOW_BORDERLESS,
        SDL_WINDOW_RESIZABLE,
        SDL_WINDOW_MINIMIZED,
        SDL_WINDOW_MAXIMIZED,
        SDL_WINDOW_MOUSE_GRABBED,
        SDL_WINDOW_INPUT_FOCUS,
        SDL_WINDOW_MOUSE_FOCUS,
        SDL_WINDOW_FOREIGN,
        SDL_WINDOW_MOUSE_CAPTURE,
        SDL_WINDOW_ALWAYS_ON_TOP,
        SDL_WINDOW_SKIP_TASKBAR,
        SDL_WINDOW_UTILITY,
        SDL_WINDOW_TOOLTIP,
        SDL_WINDOW_POPUP_MENU,
        SDL_WINDOW_KEYBOARD_GRABBED,
        SDL_WINDOW_VULKAN,
        SDL_WINDOW_METAL
    };

    int i;
    int count = 0;
    for (i = 0; i < (sizeof(window_flags) / sizeof(window_flags[0])); ++i) {
        const Uint32 flag = window_flags[i];
        if ((flags & flag) == flag) {
            if (count > 0) {
                SDL_snprintfcat(text, maxlen, " | ");
            }
            SDLTest_PrintWindowFlag(text, maxlen, flag);
            ++count;
        }
    }
}

static void SDLTest_PrintButtonMask(char *text, size_t maxlen, Uint32 flags)
{
    int i;
    int count = 0;
    for (i = 1; i <= 32; ++i) {
        const Uint32 flag = SDL_BUTTON(i);
        if ((flags & flag) == flag) {
            if (count > 0) {
                SDL_snprintfcat(text, maxlen, " | ");
            }
            SDL_snprintfcat(text, maxlen, "SDL_BUTTON(%d)", i);
            ++count;
        }
    }
}

static void SDLTest_PrintRendererFlag(char *text, size_t maxlen, Uint32 flag)
{
    switch (flag) {
    case SDL_RENDERER_SOFTWARE:
        SDL_snprintfcat(text, maxlen, "Software");
        break;
    case SDL_RENDERER_ACCELERATED:
        SDL_snprintfcat(text, maxlen, "Accelerated");
        break;
    case SDL_RENDERER_PRESENTVSYNC:
        SDL_snprintfcat(text, maxlen, "PresentVSync");
        break;
    default:
        SDL_snprintfcat(text, maxlen, "0x%8.8x", flag);
        break;
    }
}

static void SDLTest_PrintPixelFormat(char *text, size_t maxlen, Uint32 format)
{
    switch (format) {
    case SDL_PIXELFORMAT_UNKNOWN:
        SDL_snprintfcat(text, maxlen, "Unknown");
        break;
    case SDL_PIXELFORMAT_INDEX1LSB:
        SDL_snprintfcat(text, maxlen, "Index1LSB");
        break;
    case SDL_PIXELFORMAT_INDEX1MSB:
        SDL_snprintfcat(text, maxlen, "Index1MSB");
        break;
    case SDL_PIXELFORMAT_INDEX4LSB:
        SDL_snprintfcat(text, maxlen, "Index4LSB");
        break;
    case SDL_PIXELFORMAT_INDEX4MSB:
        SDL_snprintfcat(text, maxlen, "Index4MSB");
        break;
    case SDL_PIXELFORMAT_INDEX8:
        SDL_snprintfcat(text, maxlen, "Index8");
        break;
    case SDL_PIXELFORMAT_RGB332:
        SDL_snprintfcat(text, maxlen, "RGB332");
        break;
    case SDL_PIXELFORMAT_RGB444:
        SDL_snprintfcat(text, maxlen, "RGB444");
        break;
    case SDL_PIXELFORMAT_BGR444:
        SDL_snprintfcat(text, maxlen, "BGR444");
        break;
    case SDL_PIXELFORMAT_RGB555:
        SDL_snprintfcat(text, maxlen, "RGB555");
        break;
    case SDL_PIXELFORMAT_BGR555:
        SDL_snprintfcat(text, maxlen, "BGR555");
        break;
    case SDL_PIXELFORMAT_ARGB4444:
        SDL_snprintfcat(text, maxlen, "ARGB4444");
        break;
    case SDL_PIXELFORMAT_ABGR4444:
        SDL_snprintfcat(text, maxlen, "ABGR4444");
        break;
    case SDL_PIXELFORMAT_ARGB1555:
        SDL_snprintfcat(text, maxlen, "ARGB1555");
        break;
    case SDL_PIXELFORMAT_ABGR1555:
        SDL_snprintfcat(text, maxlen, "ABGR1555");
        break;
    case SDL_PIXELFORMAT_RGB565:
        SDL_snprintfcat(text, maxlen, "RGB565");
        break;
    case SDL_PIXELFORMAT_BGR565:
        SDL_snprintfcat(text, maxlen, "BGR565");
        break;
    case SDL_PIXELFORMAT_RGB24:
        SDL_snprintfcat(text, maxlen, "RGB24");
        break;
    case SDL_PIXELFORMAT_BGR24:
        SDL_snprintfcat(text, maxlen, "BGR24");
        break;
    case SDL_PIXELFORMAT_RGB888:
        SDL_snprintfcat(text, maxlen, "RGB888");
        break;
    case SDL_PIXELFORMAT_BGR888:
        SDL_snprintfcat(text, maxlen, "BGR888");
        break;
    case SDL_PIXELFORMAT_ARGB8888:
        SDL_snprintfcat(text, maxlen, "ARGB8888");
        break;
    case SDL_PIXELFORMAT_RGBA8888:
        SDL_snprintfcat(text, maxlen, "RGBA8888");
        break;
    case SDL_PIXELFORMAT_ABGR8888:
        SDL_snprintfcat(text, maxlen, "ABGR8888");
        break;
    case SDL_PIXELFORMAT_BGRA8888:
        SDL_snprintfcat(text, maxlen, "BGRA8888");
        break;
    case SDL_PIXELFORMAT_ARGB2101010:
        SDL_snprintfcat(text, maxlen, "ARGB2101010");
        break;
    case SDL_PIXELFORMAT_YV12:
        SDL_snprintfcat(text, maxlen, "YV12");
        break;
    case SDL_PIXELFORMAT_IYUV:
        SDL_snprintfcat(text, maxlen, "IYUV");
        break;
    case SDL_PIXELFORMAT_YUY2:
        SDL_snprintfcat(text, maxlen, "YUY2");
        break;
    case SDL_PIXELFORMAT_UYVY:
        SDL_snprintfcat(text, maxlen, "UYVY");
        break;
    case SDL_PIXELFORMAT_YVYU:
        SDL_snprintfcat(text, maxlen, "YVYU");
        break;
    case SDL_PIXELFORMAT_NV12:
        SDL_snprintfcat(text, maxlen, "NV12");
        break;
    case SDL_PIXELFORMAT_NV21:
        SDL_snprintfcat(text, maxlen, "NV21");
        break;
    default:
        SDL_snprintfcat(text, maxlen, "0x%8.8x", format);
        break;
    }
}

static void SDLTest_PrintLogicalPresentation(char *text, size_t maxlen, SDL_RendererLogicalPresentation logical_presentation)
{
    switch (logical_presentation) {
    case SDL_LOGICAL_PRESENTATION_DISABLED:
        SDL_snprintfcat(text, maxlen, "DISABLED");
        break;
    case SDL_LOGICAL_PRESENTATION_MATCH:
        SDL_snprintfcat(text, maxlen, "MATCH");
        break;
    case SDL_LOGICAL_PRESENTATION_STRETCH:
        SDL_snprintfcat(text, maxlen, "STRETCH");
        break;
    case SDL_LOGICAL_PRESENTATION_LETTERBOX:
        SDL_snprintfcat(text, maxlen, "LETTERBOX");
        break;
    case SDL_LOGICAL_PRESENTATION_OVERSCAN:
        SDL_snprintfcat(text, maxlen, "OVERSCAN");
        break;
    case SDL_LOGICAL_PRESENTATION_INTEGER_SCALE:
        SDL_snprintfcat(text, maxlen, "INTEGER_SCALE");
        break;
    default:
        SDL_snprintfcat(text, maxlen, "0x%8.8x", logical_presentation);
        break;
    }
}

static void SDLTest_PrintScaleMode(char *text, size_t maxlen, SDL_ScaleMode scale_mode)
{
    switch (scale_mode) {
    case SDL_SCALEMODE_NEAREST:
        SDL_snprintfcat(text, maxlen, "NEAREST");
        break;
    case SDL_SCALEMODE_LINEAR:
        SDL_snprintfcat(text, maxlen, "LINEAR");
        break;
    case SDL_SCALEMODE_BEST:
        SDL_snprintfcat(text, maxlen, "BEST");
        break;
    default:
        SDL_snprintfcat(text, maxlen, "0x%8.8x", scale_mode);
        break;
    }
}

static void SDLTest_PrintRenderer(SDL_RendererInfo *info)
{
    int i, count;
    char text[1024];

    SDL_Log("  Renderer %s:\n", info->name);

    (void)SDL_snprintf(text, sizeof text, "    Flags: 0x%8.8" SDL_PRIX32, info->flags);
    SDL_snprintfcat(text, sizeof text, " (");
    count = 0;
    for (i = 0; i < 8 * sizeof info->flags; ++i) {
        Uint32 flag = (1 << i);
        if (info->flags & flag) {
            if (count > 0) {
                SDL_snprintfcat(text, sizeof text, " | ");
            }
            SDLTest_PrintRendererFlag(text, sizeof text, flag);
            ++count;
        }
    }
    SDL_snprintfcat(text, sizeof text, ")");
    SDL_Log("%s\n", text);

    (void)SDL_snprintf(text, sizeof text, "    Texture formats (%" SDL_PRIu32 "): ", info->num_texture_formats);
    for (i = 0; i < (int)info->num_texture_formats; ++i) {
        if (i > 0) {
            SDL_snprintfcat(text, sizeof text, ", ");
        }
        SDLTest_PrintPixelFormat(text, sizeof text, info->texture_formats[i]);
    }
    SDL_Log("%s\n", text);

    if (info->max_texture_width || info->max_texture_height) {
        SDL_Log("    Max Texture Size: %dx%d\n",
                info->max_texture_width, info->max_texture_height);
    }
}

static SDL_Surface *SDLTest_LoadIcon(const char *file)
{
    SDL_Surface *icon;

    /* Load the icon surface */
    icon = SDL_LoadBMP(file);
    if (icon == NULL) {
        SDL_Log("Couldn't load %s: %s\n", file, SDL_GetError());
        return NULL;
    }

    if (icon->format->palette) {
        /* Set the colorkey */
        SDL_SetSurfaceColorKey(icon, 1, *((Uint8 *)icon->pixels));
    }

    return icon;
}

static SDL_HitTestResult SDLCALL SDLTest_ExampleHitTestCallback(SDL_Window *win, const SDL_Point *area, void *data)
{
    int w, h;
    const int RESIZE_BORDER = 8;
    const int DRAGGABLE_TITLE = 32;

    /*SDL_Log("Hit test point %d,%d\n", area->x, area->y);*/

    SDL_GetWindowSize(win, &w, &h);

    if (area->x < RESIZE_BORDER) {
        if (area->y < RESIZE_BORDER) {
            SDL_Log("SDL_HITTEST_RESIZE_TOPLEFT\n");
            return SDL_HITTEST_RESIZE_TOPLEFT;
        } else if (area->y >= (h - RESIZE_BORDER)) {
            SDL_Log("SDL_HITTEST_RESIZE_BOTTOMLEFT\n");
            return SDL_HITTEST_RESIZE_BOTTOMLEFT;
        } else {
            SDL_Log("SDL_HITTEST_RESIZE_LEFT\n");
            return SDL_HITTEST_RESIZE_LEFT;
        }
    } else if (area->x >= (w - RESIZE_BORDER)) {
        if (area->y < RESIZE_BORDER) {
            SDL_Log("SDL_HITTEST_RESIZE_TOPRIGHT\n");
            return SDL_HITTEST_RESIZE_TOPRIGHT;
        } else if (area->y >= (h - RESIZE_BORDER)) {
            SDL_Log("SDL_HITTEST_RESIZE_BOTTOMRIGHT\n");
            return SDL_HITTEST_RESIZE_BOTTOMRIGHT;
        } else {
            SDL_Log("SDL_HITTEST_RESIZE_RIGHT\n");
            return SDL_HITTEST_RESIZE_RIGHT;
        }
    } else if (area->y >= (h - RESIZE_BORDER)) {
        SDL_Log("SDL_HITTEST_RESIZE_BOTTOM\n");
        return SDL_HITTEST_RESIZE_BOTTOM;
    } else if (area->y < RESIZE_BORDER) {
        SDL_Log("SDL_HITTEST_RESIZE_TOP\n");
        return SDL_HITTEST_RESIZE_TOP;
    } else if (area->y < DRAGGABLE_TITLE) {
        SDL_Log("SDL_HITTEST_DRAGGABLE\n");
        return SDL_HITTEST_DRAGGABLE;
    }
    return SDL_HITTEST_NORMAL;
}

SDL_bool
SDLTest_CommonInit(SDLTest_CommonState *state)
{
    int i, j, m, n, w, h;
    const SDL_DisplayMode *fullscreen_mode;
    char text[1024];

    if (state->flags & SDL_INIT_VIDEO) {
        if (state->verbose & VERBOSE_VIDEO) {
            n = SDL_GetNumVideoDrivers();
            if (n == 0) {
                SDL_Log("No built-in video drivers\n");
            } else {
                (void)SDL_snprintf(text, sizeof text, "Built-in video drivers:");
                for (i = 0; i < n; ++i) {
                    if (i > 0) {
                        SDL_snprintfcat(text, sizeof text, ",");
                    }
                    SDL_snprintfcat(text, sizeof text, " %s", SDL_GetVideoDriver(i));
                }
                SDL_Log("%s\n", text);
            }
        }
        SDL_SetHint(SDL_HINT_VIDEO_DRIVER, state->videodriver);
        if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0) {
            SDL_Log("Couldn't initialize video driver: %s\n",
                    SDL_GetError());
            return SDL_FALSE;
        }
        if (state->verbose & VERBOSE_VIDEO) {
            SDL_Log("Video driver: %s\n",
                    SDL_GetCurrentVideoDriver());
        }

        /* Upload GL settings */
        SDL_GL_SetAttribute(SDL_GL_RED_SIZE, state->gl_red_size);
        SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, state->gl_green_size);
        SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, state->gl_blue_size);
        SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, state->gl_alpha_size);
        SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, state->gl_double_buffer);
        SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, state->gl_buffer_size);
        SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, state->gl_depth_size);
        SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, state->gl_stencil_size);
        SDL_GL_SetAttribute(SDL_GL_ACCUM_RED_SIZE, state->gl_accum_red_size);
        SDL_GL_SetAttribute(SDL_GL_ACCUM_GREEN_SIZE, state->gl_accum_green_size);
        SDL_GL_SetAttribute(SDL_GL_ACCUM_BLUE_SIZE, state->gl_accum_blue_size);
        SDL_GL_SetAttribute(SDL_GL_ACCUM_ALPHA_SIZE, state->gl_accum_alpha_size);
        SDL_GL_SetAttribute(SDL_GL_STEREO, state->gl_stereo);
        SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, state->gl_multisamplebuffers);
        SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, state->gl_multisamplesamples);
        if (state->gl_accelerated >= 0) {
            SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL,
                                state->gl_accelerated);
        }
        SDL_GL_SetAttribute(SDL_GL_RETAINED_BACKING, state->gl_retained_backing);
        if (state->gl_major_version) {
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, state->gl_major_version);
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, state->gl_minor_version);
        }
        if (state->gl_debug) {
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG);
        }
        if (state->gl_profile_mask) {
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, state->gl_profile_mask);
        }

        if (state->verbose & VERBOSE_MODES) {
            SDL_DisplayID *displays;
            SDL_Rect bounds, usablebounds;
            const SDL_DisplayMode **modes;
            const SDL_DisplayMode *mode;
            int bpp;
            Uint32 Rmask, Gmask, Bmask, Amask;
#if SDL_VIDEO_DRIVER_WINDOWS
            int adapterIndex = 0;
            int outputIndex = 0;
#endif
            displays = SDL_GetDisplays(&n);
            SDL_Log("Number of displays: %d\n", n);
            for (i = 0; i < n; ++i) {
                SDL_DisplayID displayID = displays[i];
                SDL_Log("Display %" SDL_PRIu32 ": %s\n", displayID, SDL_GetDisplayName(displayID));

                SDL_zero(bounds);
                SDL_GetDisplayBounds(displayID, &bounds);

                SDL_zero(usablebounds);
                SDL_GetDisplayUsableBounds(displayID, &usablebounds);

                SDL_Log("Bounds: %dx%d at %d,%d\n", bounds.w, bounds.h, bounds.x, bounds.y);
                SDL_Log("Usable bounds: %dx%d at %d,%d\n", usablebounds.w, usablebounds.h, usablebounds.x, usablebounds.y);

                mode = SDL_GetDesktopDisplayMode(displayID);
                SDL_GetMasksForPixelFormatEnum(mode->format, &bpp, &Rmask, &Gmask,
                                           &Bmask, &Amask);
                SDL_Log("  Desktop mode: %dx%d@%gHz, %d%% scale, %d bits-per-pixel (%s)\n",
                        mode->pixel_w, mode->pixel_h, mode->refresh_rate, (int)(mode->display_scale * 100.0f), bpp,
                        SDL_GetPixelFormatName(mode->format));
                if (Rmask || Gmask || Bmask) {
                    SDL_Log("      Red Mask   = 0x%.8" SDL_PRIx32 "\n", Rmask);
                    SDL_Log("      Green Mask = 0x%.8" SDL_PRIx32 "\n", Gmask);
                    SDL_Log("      Blue Mask  = 0x%.8" SDL_PRIx32 "\n", Bmask);
                    if (Amask) {
                        SDL_Log("      Alpha Mask = 0x%.8" SDL_PRIx32 "\n", Amask);
                    }
                }

                /* Print available fullscreen video modes */
                modes = SDL_GetFullscreenDisplayModes(displayID, &m);
                if (m == 0) {
                    SDL_Log("No available fullscreen video modes\n");
                } else {
                    SDL_Log("  Fullscreen video modes:\n");
                    for (j = 0; j < m; ++j) {
                        mode = modes[j];
                        SDL_GetMasksForPixelFormatEnum(mode->format, &bpp, &Rmask,
                                                   &Gmask, &Bmask, &Amask);
                        SDL_Log("    Mode %d: %dx%d@%gHz, %d%% scale, %d bits-per-pixel (%s)\n",
                                j, mode->pixel_w, mode->pixel_h, mode->refresh_rate, (int)(mode->display_scale * 100.0f), bpp,
                                SDL_GetPixelFormatName(mode->format));
                        if (Rmask || Gmask || Bmask) {
                            SDL_Log("        Red Mask   = 0x%.8" SDL_PRIx32 "\n",
                                    Rmask);
                            SDL_Log("        Green Mask = 0x%.8" SDL_PRIx32 "\n",
                                    Gmask);
                            SDL_Log("        Blue Mask  = 0x%.8" SDL_PRIx32 "\n",
                                    Bmask);
                            if (Amask) {
                                SDL_Log("        Alpha Mask = 0x%.8" SDL_PRIx32 "\n", Amask);
                            }
                        }
                    }
                }
                SDL_free((void *)modes);

#if SDL_VIDEO_DRIVER_WINDOWS && !defined(__XBOXONE__) && !defined(__XBOXSERIES__)
                /* Print the D3D9 adapter index */
                adapterIndex = SDL_Direct3D9GetAdapterIndex(displayID);
                SDL_Log("D3D9 Adapter Index: %d", adapterIndex);

                /* Print the DXGI adapter and output indices */
                SDL_DXGIGetOutputInfo(displayID, &adapterIndex, &outputIndex);
                SDL_Log("DXGI Adapter Index: %d  Output Index: %d", adapterIndex, outputIndex);
#endif
            }
            SDL_free(displays);
        }

        if (state->verbose & VERBOSE_RENDER) {
            n = SDL_GetNumRenderDrivers();
            if (n == 0) {
                SDL_Log("No built-in render drivers\n");
            } else {
                SDL_Log("Built-in render drivers:\n");
                for (i = 0; i < n; ++i) {
                    SDL_Log("  %s\n", SDL_GetRenderDriver(i));
                }
            }
        }

        state->displayID = SDL_GetPrimaryDisplay();
        if (state->display_index > 0) {
            SDL_DisplayID *displays = SDL_GetDisplays(&n);
            if (state->display_index < n) {
                state->displayID = displays[state->display_index];
            }
            SDL_free(displays);

            if (SDL_WINDOWPOS_ISUNDEFINED(state->window_x)) {
                state->window_x = SDL_WINDOWPOS_UNDEFINED_DISPLAY(state->displayID);
                state->window_y = SDL_WINDOWPOS_UNDEFINED_DISPLAY(state->displayID);
            }
            if (SDL_WINDOWPOS_ISCENTERED(state->window_x)) {
                state->window_x = SDL_WINDOWPOS_CENTERED_DISPLAY(state->displayID);
                state->window_y = SDL_WINDOWPOS_CENTERED_DISPLAY(state->displayID);
            }
        }

        fullscreen_mode = SDL_GetClosestFullscreenDisplayMode(state->displayID, state->window_w, state->window_h, state->refresh_rate);
        if (fullscreen_mode) {
            SDL_memcpy(&state->fullscreen_mode, fullscreen_mode, sizeof(state->fullscreen_mode));
        }

        state->windows =
            (SDL_Window **)SDL_calloc(state->num_windows,
                                      sizeof(*state->windows));
        state->renderers =
            (SDL_Renderer **)SDL_calloc(state->num_windows,
                                        sizeof(*state->renderers));
        state->targets =
            (SDL_Texture **)SDL_calloc(state->num_windows,
                                       sizeof(*state->targets));
        if (!state->windows || !state->renderers) {
            SDL_Log("Out of memory!\n");
            return SDL_FALSE;
        }
        for (i = 0; i < state->num_windows; ++i) {
            char title[1024];
            SDL_Rect r;

            r.x = state->window_x;
            r.y = state->window_y;
            r.w = state->window_w;
            r.h = state->window_h;

            /* !!! FIXME: hack to make --usable-bounds work for now. */
            if ((r.x == -1) && (r.y == -1) && (r.w == -1) && (r.h == -1)) {
                SDL_GetDisplayUsableBounds(state->displayID, &r);
            }

            if (state->num_windows > 1) {
                (void)SDL_snprintf(title, SDL_arraysize(title), "%s %d",
                                   state->window_title, i + 1);
            } else {
                SDL_strlcpy(title, state->window_title, SDL_arraysize(title));
            }
            state->windows[i] =
                SDL_CreateWindow(title, r.x, r.y, r.w, r.h, state->window_flags);
            if (!state->windows[i]) {
                SDL_Log("Couldn't create window: %s\n",
                        SDL_GetError());
                return SDL_FALSE;
            }
            if (state->window_minW || state->window_minH) {
                SDL_SetWindowMinimumSize(state->windows[i], state->window_minW, state->window_minH);
            }
            if (state->window_maxW || state->window_maxH) {
                SDL_SetWindowMaximumSize(state->windows[i], state->window_maxW, state->window_maxH);
            }
            SDL_GetWindowSize(state->windows[i], &w, &h);
            if (!(state->window_flags & SDL_WINDOW_RESIZABLE) &&
                (w != state->window_w || h != state->window_h)) {
                SDL_Log("Window requested size %dx%d, got %dx%d\n", state->window_w, state->window_h, w, h);
                state->window_w = w;
                state->window_h = h;
            }
            if (state->window_flags & SDL_WINDOW_FULLSCREEN) {
                if (state->fullscreen_exclusive) {
                    SDL_SetWindowFullscreenMode(state->windows[i], &state->fullscreen_mode);
                }
                SDL_SetWindowFullscreen(state->windows[i], SDL_TRUE);
            }

            /* Add resize/drag areas for windows that are borderless and resizable */
            if ((state->window_flags & (SDL_WINDOW_RESIZABLE | SDL_WINDOW_BORDERLESS)) ==
                (SDL_WINDOW_RESIZABLE | SDL_WINDOW_BORDERLESS)) {
                SDL_SetWindowHitTest(state->windows[i], SDLTest_ExampleHitTestCallback, NULL);
            }

            if (state->window_icon) {
                SDL_Surface *icon = SDLTest_LoadIcon(state->window_icon);
                if (icon) {
                    SDL_SetWindowIcon(state->windows[i], icon);
                    SDL_DestroySurface(icon);
                }
            }

            SDL_ShowWindow(state->windows[i]);

            if (!SDL_RectEmpty(&state->confine)) {
                SDL_SetWindowMouseRect(state->windows[i], &state->confine);
            }

            if (!state->skip_renderer && (state->renderdriver || !(state->window_flags & (SDL_WINDOW_OPENGL | SDL_WINDOW_VULKAN | SDL_WINDOW_METAL)))) {
                state->renderers[i] = SDL_CreateRenderer(state->windows[i],
                                                         state->renderdriver, state->render_flags);
                if (!state->renderers[i]) {
                    SDL_Log("Couldn't create renderer: %s\n",
                            SDL_GetError());
                    return SDL_FALSE;
                }
                if (state->logical_w == 0 || state->logical_h == 0) {
                    state->logical_w = state->window_w;
                    state->logical_h = state->window_h;
                }
                if (SDL_SetRenderLogicalPresentation(state->renderers[i], state->logical_w, state->logical_h, state->logical_presentation, state->logical_scale_mode) < 0) {
                    SDL_Log("Couldn't set logical presentation: %s\n", SDL_GetError());
                    return SDL_FALSE;
                }
                if (state->scale != 0.0f) {
                    SDL_SetRenderScale(state->renderers[i], state->scale, state->scale);
                }
                if (state->verbose & VERBOSE_RENDER) {
                    SDL_RendererInfo info;

                    SDL_Log("Current renderer:\n");
                    SDL_GetRendererInfo(state->renderers[i], &info);
                    SDLTest_PrintRenderer(&info);
                }
            }
        }
    }

    if (state->flags & SDL_INIT_AUDIO) {
        if (state->verbose & VERBOSE_AUDIO) {
            n = SDL_GetNumAudioDrivers();
            if (n == 0) {
                SDL_Log("No built-in audio drivers\n");
            } else {
                (void)SDL_snprintf(text, sizeof text, "Built-in audio drivers:");
                for (i = 0; i < n; ++i) {
                    if (i > 0) {
                        SDL_snprintfcat(text, sizeof text, ",");
                    }
                    SDL_snprintfcat(text, sizeof text, " %s", SDL_GetAudioDriver(i));
                }
                SDL_Log("%s\n", text);
            }
        }
        SDL_SetHint(SDL_HINT_AUDIO_DRIVER, state->audiodriver);
        if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
            SDL_Log("Couldn't initialize audio driver: %s\n",
                    SDL_GetError());
            return SDL_FALSE;
        }
        if (state->verbose & VERBOSE_AUDIO) {
            SDL_Log("Audio driver: %s\n",
                    SDL_GetCurrentAudioDriver());
        }

        state->audio_id = SDL_OpenAudioDevice(NULL, 0, &state->audiospec, NULL, 0);
        if (!state->audio_id) {
            SDL_Log("Couldn't open audio: %s\n", SDL_GetError());
            return SDL_FALSE;
        }
    }

    return SDL_TRUE;
}

static const char *DisplayOrientationName(int orientation)
{
    switch (orientation) {
#define CASE(X)               \
    case SDL_ORIENTATION_##X: \
        return #X
        CASE(UNKNOWN);
        CASE(LANDSCAPE);
        CASE(LANDSCAPE_FLIPPED);
        CASE(PORTRAIT);
        CASE(PORTRAIT_FLIPPED);
#undef CASE
    default:
        return "???";
    }
}

static const char *GamepadAxisName(const SDL_GamepadAxis axis)
{
    switch (axis) {
#define AXIS_CASE(ax)              \
    case SDL_GAMEPAD_AXIS_##ax: \
        return #ax
        AXIS_CASE(INVALID);
        AXIS_CASE(LEFTX);
        AXIS_CASE(LEFTY);
        AXIS_CASE(RIGHTX);
        AXIS_CASE(RIGHTY);
        AXIS_CASE(LEFT_TRIGGER);
        AXIS_CASE(RIGHT_TRIGGER);
#undef AXIS_CASE
    default:
        return "???";
    }
}

static const char *GamepadButtonName(const SDL_GamepadButton button)
{
    switch (button) {
#define BUTTON_CASE(btn)              \
    case SDL_GAMEPAD_BUTTON_##btn: \
        return #btn
        BUTTON_CASE(INVALID);
        BUTTON_CASE(A);
        BUTTON_CASE(B);
        BUTTON_CASE(X);
        BUTTON_CASE(Y);
        BUTTON_CASE(BACK);
        BUTTON_CASE(GUIDE);
        BUTTON_CASE(START);
        BUTTON_CASE(LEFT_STICK);
        BUTTON_CASE(RIGHT_STICK);
        BUTTON_CASE(LEFT_SHOULDER);
        BUTTON_CASE(RIGHT_SHOULDER);
        BUTTON_CASE(DPAD_UP);
        BUTTON_CASE(DPAD_DOWN);
        BUTTON_CASE(DPAD_LEFT);
        BUTTON_CASE(DPAD_RIGHT);
#undef BUTTON_CASE
    default:
        return "???";
    }
}

static void SDLTest_PrintEvent(SDL_Event *event)
{
    switch (event->type) {
    case SDL_EVENT_DISPLAY_CONNECTED:
        SDL_Log("SDL EVENT: Display %" SDL_PRIu32 " connected",
                event->display.displayID);
        break;
    case SDL_EVENT_DISPLAY_MOVED:
        SDL_Log("SDL EVENT: Display %" SDL_PRIu32 " changed position",
                event->display.displayID);
        break;
    case SDL_EVENT_DISPLAY_ORIENTATION:
        SDL_Log("SDL EVENT: Display %" SDL_PRIu32 " changed orientation to %s",
                event->display.displayID, DisplayOrientationName(event->display.data1));
        break;
    case SDL_EVENT_DISPLAY_DISCONNECTED:
        SDL_Log("SDL EVENT: Display %" SDL_PRIu32 " disconnected",
                event->display.displayID);
        break;
    case SDL_EVENT_WINDOW_SHOWN:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " shown", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_HIDDEN:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " hidden", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_EXPOSED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " exposed", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_MOVED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " moved to %" SDL_PRIs32 ",%" SDL_PRIs32,
                event->window.windowID, event->window.data1, event->window.data2);
        break;
    case SDL_EVENT_WINDOW_RESIZED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " resized to %" SDL_PRIs32 "x%" SDL_PRIs32,
                event->window.windowID, event->window.data1, event->window.data2);
        break;
    case SDL_EVENT_WINDOW_MINIMIZED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " minimized", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_MAXIMIZED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " maximized", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_RESTORED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " restored", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_MOUSE_ENTER:
        SDL_Log("SDL EVENT: Mouse entered window %" SDL_PRIu32 "",
                event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_MOUSE_LEAVE:
        SDL_Log("SDL EVENT: Mouse left window %" SDL_PRIu32 "", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_FOCUS_GAINED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " gained keyboard focus",
                event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_FOCUS_LOST:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " lost keyboard focus",
                event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_CLOSE_REQUESTED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " closed", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_TAKE_FOCUS:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " take focus", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_HIT_TEST:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " hit test", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_ICCPROF_CHANGED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " ICC profile changed", event->window.windowID);
        break;
    case SDL_EVENT_WINDOW_DISPLAY_CHANGED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " display changed to %" SDL_PRIs32 "", event->window.windowID, event->window.data1);
        break;
    case SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED:
        SDL_Log("SDL EVENT: Window %" SDL_PRIu32 " changed pixel size to %" SDL_PRIs32 "x%" SDL_PRIs32,
                event->window.windowID, event->window.data1, event->window.data2);
        break;
    case SDL_EVENT_KEY_DOWN:
        SDL_Log("SDL EVENT: Keyboard: key pressed  in window %" SDL_PRIu32 ": scancode 0x%08X = %s, keycode 0x%08" SDL_PRIX32 " = %s",
                event->key.windowID,
                event->key.keysym.scancode,
                SDL_GetScancodeName(event->key.keysym.scancode),
                event->key.keysym.sym, SDL_GetKeyName(event->key.keysym.sym));
        break;
    case SDL_EVENT_KEY_UP:
        SDL_Log("SDL EVENT: Keyboard: key released in window %" SDL_PRIu32 ": scancode 0x%08X = %s, keycode 0x%08" SDL_PRIX32 " = %s",
                event->key.windowID,
                event->key.keysym.scancode,
                SDL_GetScancodeName(event->key.keysym.scancode),
                event->key.keysym.sym, SDL_GetKeyName(event->key.keysym.sym));
        break;
    case SDL_EVENT_TEXT_EDITING:
        SDL_Log("SDL EVENT: Keyboard: text editing \"%s\" in window %" SDL_PRIu32,
                event->edit.text, event->edit.windowID);
        break;
    case SDL_EVENT_TEXT_INPUT:
        SDL_Log("SDL EVENT: Keyboard: text input \"%s\" in window %" SDL_PRIu32,
                event->text.text, event->text.windowID);
        break;
    case SDL_EVENT_KEYMAP_CHANGED:
        SDL_Log("SDL EVENT: Keymap changed");
        break;
    case SDL_EVENT_MOUSE_MOTION:
        SDL_Log("SDL EVENT: Mouse: moved to %g,%g (%g,%g) in window %" SDL_PRIu32,
                event->motion.x, event->motion.y,
                event->motion.xrel, event->motion.yrel,
                event->motion.windowID);
        break;
    case SDL_EVENT_MOUSE_BUTTON_DOWN:
        SDL_Log("SDL EVENT: Mouse: button %d pressed at %g,%g with click count %d in window %" SDL_PRIu32,
                event->button.button, event->button.x, event->button.y, event->button.clicks,
                event->button.windowID);
        break;
    case SDL_EVENT_MOUSE_BUTTON_UP:
        SDL_Log("SDL EVENT: Mouse: button %d released at %g,%g with click count %d in window %" SDL_PRIu32,
                event->button.button, event->button.x, event->button.y, event->button.clicks,
                event->button.windowID);
        break;
    case SDL_EVENT_MOUSE_WHEEL:
        SDL_Log("SDL EVENT: Mouse: wheel scrolled %g in x and %g in y (reversed: %" SDL_PRIu32 ") in window %" SDL_PRIu32,
                event->wheel.x, event->wheel.y, event->wheel.direction, event->wheel.windowID);
        break;
    case SDL_EVENT_JOYSTICK_ADDED:
        SDL_Log("SDL EVENT: Joystick index %" SDL_PRIu32 " attached",
                event->jdevice.which);
        break;
    case SDL_EVENT_JOYSTICK_REMOVED:
        SDL_Log("SDL EVENT: Joystick %" SDL_PRIu32 " removed",
                event->jdevice.which);
        break;
    case SDL_EVENT_JOYSTICK_HAT_MOTION:
    {
        const char *position = "UNKNOWN";
        switch (event->jhat.value) {
        case SDL_HAT_CENTERED:
            position = "CENTER";
            break;
        case SDL_HAT_UP:
            position = "UP";
            break;
        case SDL_HAT_RIGHTUP:
            position = "RIGHTUP";
            break;
        case SDL_HAT_RIGHT:
            position = "RIGHT";
            break;
        case SDL_HAT_RIGHTDOWN:
            position = "RIGHTDOWN";
            break;
        case SDL_HAT_DOWN:
            position = "DOWN";
            break;
        case SDL_HAT_LEFTDOWN:
            position = "LEFTDOWN";
            break;
        case SDL_HAT_LEFT:
            position = "LEFT";
            break;
        case SDL_HAT_LEFTUP:
            position = "LEFTUP";
            break;
        }
        SDL_Log("SDL EVENT: Joystick %" SDL_PRIu32 ": hat %d moved to %s",
                event->jhat.which, event->jhat.hat, position);
    } break;
    case SDL_EVENT_JOYSTICK_BUTTON_DOWN:
        SDL_Log("SDL EVENT: Joystick %" SDL_PRIu32 ": button %d pressed",
                event->jbutton.which, event->jbutton.button);
        break;
    case SDL_EVENT_JOYSTICK_BUTTON_UP:
        SDL_Log("SDL EVENT: Joystick %" SDL_PRIu32 ": button %d released",
                event->jbutton.which, event->jbutton.button);
        break;
    case SDL_EVENT_GAMEPAD_ADDED:
        SDL_Log("SDL EVENT: Gamepad index %" SDL_PRIu32 " attached",
                event->cdevice.which);
        break;
    case SDL_EVENT_GAMEPAD_REMOVED:
        SDL_Log("SDL EVENT: Gamepad %" SDL_PRIu32 " removed",
                event->cdevice.which);
        break;
    case SDL_EVENT_GAMEPAD_AXIS_MOTION:
        SDL_Log("SDL EVENT: Gamepad %" SDL_PRIu32 " axis %d ('%s') value: %d",
                event->caxis.which,
                event->caxis.axis,
                GamepadAxisName((SDL_GamepadAxis)event->caxis.axis),
                event->caxis.value);
        break;
    case SDL_EVENT_GAMEPAD_BUTTON_DOWN:
        SDL_Log("SDL EVENT: Gamepad %" SDL_PRIu32 "button %d ('%s') down",
                event->cbutton.which, event->cbutton.button,
                GamepadButtonName((SDL_GamepadButton)event->cbutton.button));
        break;
    case SDL_EVENT_GAMEPAD_BUTTON_UP:
        SDL_Log("SDL EVENT: Gamepad %" SDL_PRIu32 " button %d ('%s') up",
                event->cbutton.which, event->cbutton.button,
                GamepadButtonName((SDL_GamepadButton)event->cbutton.button));
        break;
    case SDL_EVENT_CLIPBOARD_UPDATE:
        SDL_Log("SDL EVENT: Clipboard updated");
        break;

    case SDL_EVENT_FINGER_MOTION:
        SDL_Log("SDL EVENT: Finger: motion touch=%ld, finger=%ld, x=%f, y=%f, dx=%f, dy=%f, pressure=%f",
                (long)event->tfinger.touchId,
                (long)event->tfinger.fingerId,
                event->tfinger.x, event->tfinger.y,
                event->tfinger.dx, event->tfinger.dy, event->tfinger.pressure);
        break;
    case SDL_EVENT_FINGER_DOWN:
    case SDL_EVENT_FINGER_UP:
        SDL_Log("SDL EVENT: Finger: %s touch=%ld, finger=%ld, x=%f, y=%f, dx=%f, dy=%f, pressure=%f",
                (event->type == SDL_EVENT_FINGER_DOWN) ? "down" : "up",
                (long)event->tfinger.touchId,
                (long)event->tfinger.fingerId,
                event->tfinger.x, event->tfinger.y,
                event->tfinger.dx, event->tfinger.dy, event->tfinger.pressure);
        break;

    case SDL_EVENT_RENDER_DEVICE_RESET:
        SDL_Log("SDL EVENT: render device reset");
        break;
    case SDL_EVENT_RENDER_TARGETS_RESET:
        SDL_Log("SDL EVENT: render targets reset");
        break;

    case SDL_EVENT_TERMINATING:
        SDL_Log("SDL EVENT: App terminating");
        break;
    case SDL_EVENT_LOW_MEMORY:
        SDL_Log("SDL EVENT: App running low on memory");
        break;
    case SDL_EVENT_WILL_ENTER_BACKGROUND:
        SDL_Log("SDL EVENT: App will enter the background");
        break;
    case SDL_EVENT_DID_ENTER_BACKGROUND:
        SDL_Log("SDL EVENT: App entered the background");
        break;
    case SDL_EVENT_WILL_ENTER_FOREGROUND:
        SDL_Log("SDL EVENT: App will enter the foreground");
        break;
    case SDL_EVENT_DID_ENTER_FOREGROUND:
        SDL_Log("SDL EVENT: App entered the foreground");
        break;
    case SDL_EVENT_DROP_BEGIN:
        SDL_Log("SDL EVENT: Drag and drop beginning");
        break;
    case SDL_EVENT_DROP_FILE:
        SDL_Log("SDL EVENT: Drag and drop file: '%s'", event->drop.file);
        break;
    case SDL_EVENT_DROP_TEXT:
        SDL_Log("SDL EVENT: Drag and drop text: '%s'", event->drop.file);
        break;
    case SDL_EVENT_DROP_COMPLETE:
        SDL_Log("SDL EVENT: Drag and drop ending");
        break;
    case SDL_EVENT_QUIT:
        SDL_Log("SDL EVENT: Quit requested");
        break;
    case SDL_EVENT_USER:
        SDL_Log("SDL EVENT: User event %" SDL_PRIs32, event->user.code);
        break;
    default:
        SDL_Log("Unknown event 0x%4.4" SDL_PRIu32, event->type);
        break;
    }
}

static void SDLTest_ScreenShot(SDL_Renderer *renderer)
{
    SDL_Rect viewport;
    SDL_Surface *surface;

    if (renderer == NULL) {
        return;
    }

    SDL_GetRenderViewport(renderer, &viewport);

    surface = SDL_CreateSurface(viewport.w, viewport.h, SDL_PIXELFORMAT_BGR24);

    if (surface == NULL) {
        SDL_Log("Couldn't create surface: %s\n", SDL_GetError());
        return;
    }

    if (SDL_RenderReadPixels(renderer, NULL, surface->format->format,
                             surface->pixels, surface->pitch) < 0) {
        SDL_Log("Couldn't read screen: %s\n", SDL_GetError());
        SDL_free(surface);
        return;
    }

    if (SDL_SaveBMP(surface, "screenshot.bmp") < 0) {
        SDL_Log("Couldn't save screenshot.bmp: %s\n", SDL_GetError());
        SDL_free(surface);
        return;
    }
}

static void FullscreenTo(SDLTest_CommonState *state, int index, int windowId)
{
    int num_displays;
    SDL_DisplayID *displays;
    SDL_Window *window;
    Uint32 flags;
    const SDL_DisplayMode *mode;
    struct SDL_Rect rect = { 0, 0, 0, 0 };

    displays = SDL_GetDisplays(&num_displays);
    if (displays && index < num_displays) {
        window = SDL_GetWindowFromID(windowId);
        if (window) {
            SDL_GetDisplayBounds(displays[index], &rect);

            flags = SDL_GetWindowFlags(window);
            if (flags & SDL_WINDOW_FULLSCREEN) {
                SDL_SetWindowFullscreen(window, SDL_FALSE);
                SDL_Delay(15);
            }

            mode = SDL_GetWindowFullscreenMode(window);
            if (mode) {
                /* Try to set the existing mode on the new display */
                SDL_DisplayMode new_mode;

                SDL_memcpy(&new_mode, mode, sizeof(new_mode));
                new_mode.displayID = displays[index];
                if (SDL_SetWindowFullscreenMode(window, &new_mode) < 0) {
                    /* Try again with a default mode */
                    mode = SDL_GetClosestFullscreenDisplayMode(displays[index], state->window_w, state->window_h, state->refresh_rate);
                    SDL_SetWindowFullscreenMode(window, mode);
                }
            }
            if (!mode) {
                SDL_SetWindowPosition(window, rect.x, rect.y);
            }
            SDL_SetWindowFullscreen(window, SDL_TRUE);
        }
    }
    SDL_free(displays);
}

void SDLTest_CommonEvent(SDLTest_CommonState *state, SDL_Event *event, int *done)
{
    int i;
    static SDL_MouseMotionEvent lastEvent;

    if (state->verbose & VERBOSE_EVENT) {
        if (((event->type != SDL_EVENT_MOUSE_MOTION) &&
             (event->type != SDL_EVENT_FINGER_MOTION)) ||
            (state->verbose & VERBOSE_MOTION)) {
            SDLTest_PrintEvent(event);
        }
    }

    switch (event->type) {
    case SDL_EVENT_WINDOW_CLOSE_REQUESTED:
    {
        SDL_Window *window = SDL_GetWindowFromID(event->window.windowID);
        if (window) {
            for (i = 0; i < state->num_windows; ++i) {
                if (window == state->windows[i]) {
                    if (state->targets[i]) {
                        SDL_DestroyTexture(state->targets[i]);
                        state->targets[i] = NULL;
                    }
                    if (state->renderers[i]) {
                        SDL_DestroyRenderer(state->renderers[i]);
                        state->renderers[i] = NULL;
                    }
                    SDL_DestroyWindow(state->windows[i]);
                    state->windows[i] = NULL;
                    break;
                }
            }
        }
    } break;
    case SDL_EVENT_WINDOW_FOCUS_LOST:
        if (state->flash_on_focus_loss) {
            SDL_Window *window = SDL_GetWindowFromID(event->window.windowID);
            if (window) {
                SDL_FlashWindow(window, SDL_FLASH_UNTIL_FOCUSED);
            }
        }
        break;
    case SDL_EVENT_KEY_DOWN:
    {
        SDL_bool withControl = !!(event->key.keysym.mod & SDL_KMOD_CTRL);
        SDL_bool withShift = !!(event->key.keysym.mod & SDL_KMOD_SHIFT);
        SDL_bool withAlt = !!(event->key.keysym.mod & SDL_KMOD_ALT);

        switch (event->key.keysym.sym) {
            /* Add hotkeys here */
        case SDLK_PRINTSCREEN:
        {
            SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
            if (window) {
                for (i = 0; i < state->num_windows; ++i) {
                    if (window == state->windows[i]) {
                        SDLTest_ScreenShot(state->renderers[i]);
                    }
                }
            }
        } break;
        case SDLK_EQUALS:
            if (withControl) {
                /* Ctrl-+ double the size of the window */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    int w, h;
                    SDL_GetWindowSize(window, &w, &h);
                    SDL_SetWindowSize(window, w * 2, h * 2);
                }
            }
            break;
        case SDLK_MINUS:
            if (withControl) {
                /* Ctrl-- half the size of the window */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    int w, h;
                    SDL_GetWindowSize(window, &w, &h);
                    SDL_SetWindowSize(window, w / 2, h / 2);
                }
            }
            break;
        case SDLK_UP:
        case SDLK_DOWN:
        case SDLK_LEFT:
        case SDLK_RIGHT:
            if (withAlt) {
                /* Alt-Up/Down/Left/Right switches between displays */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    int num_displays;
                    SDL_DisplayID *displays = SDL_GetDisplays(&num_displays);
                    if (displays) {
                        SDL_DisplayID displayID = SDL_GetDisplayForWindow(window);
                        int current_index = -1;

                        for (i = 0; i < num_displays; ++i) {
                            if (displayID == displays[i]) {
                                current_index = i;
                                break;
                            }
                        }
                        if (current_index >= 0) {
                            SDL_DisplayID dest;
                            if (event->key.keysym.sym == SDLK_UP || event->key.keysym.sym == SDLK_LEFT) {
                                dest = displays[(current_index + num_displays - 1) % num_displays];
                            } else {
                                dest = displays[(current_index + num_displays + 1) % num_displays];
                            }
                            SDL_Log("Centering on display (%" SDL_PRIu32 ")\n", dest);
                            SDL_SetWindowPosition(window,
                                                  SDL_WINDOWPOS_CENTERED_DISPLAY(dest),
                                                  SDL_WINDOWPOS_CENTERED_DISPLAY(dest));
                        }
                        SDL_free(displays);
                    }
                }
            }
            if (withShift) {
                /* Shift-Up/Down/Left/Right shift the window by 100px */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    const int delta = 100;
                    int x, y;
                    SDL_GetWindowPosition(window, &x, &y);

                    if (event->key.keysym.sym == SDLK_UP) {
                        y -= delta;
                    }
                    if (event->key.keysym.sym == SDLK_DOWN) {
                        y += delta;
                    }
                    if (event->key.keysym.sym == SDLK_LEFT) {
                        x -= delta;
                    }
                    if (event->key.keysym.sym == SDLK_RIGHT) {
                        x += delta;
                    }

                    SDL_Log("Setting position to (%d, %d)\n", x, y);
                    SDL_SetWindowPosition(window, x, y);
                }
            }
            break;
        case SDLK_o:
            if (withControl) {
                /* Ctrl-O (or Ctrl-Shift-O) changes window opacity. */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    float opacity;
                    if (SDL_GetWindowOpacity(window, &opacity) == 0) {
                        if (withShift) {
                            opacity += 0.20f;
                        } else {
                            opacity -= 0.20f;
                        }
                        SDL_SetWindowOpacity(window, opacity);
                    }
                }
            }
            break;

        case SDLK_c:
            if (withControl) {
                /* Ctrl-C copy awesome text! */
                SDL_SetClipboardText("SDL rocks!\nYou know it!");
                SDL_Log("Copied text to clipboard\n");
            }
            if (withAlt) {
                /* Alt-C toggle a render clip rectangle */
                for (i = 0; i < state->num_windows; ++i) {
                    int w, h;
                    if (state->renderers[i]) {
                        SDL_Rect clip;
                        SDL_GetWindowSize(state->windows[i], &w, &h);
                        SDL_GetRenderClipRect(state->renderers[i], &clip);
                        if (SDL_RectEmpty(&clip)) {
                            clip.x = w / 4;
                            clip.y = h / 4;
                            clip.w = w / 2;
                            clip.h = h / 2;
                            SDL_SetRenderClipRect(state->renderers[i], &clip);
                        } else {
                            SDL_SetRenderClipRect(state->renderers[i], NULL);
                        }
                    }
                }
            }
            if (withShift) {
                SDL_Window *current_win = SDL_GetKeyboardFocus();
                if (current_win) {
                    const SDL_bool shouldCapture = !(SDL_GetWindowFlags(current_win) & SDL_WINDOW_MOUSE_CAPTURE);
                    const int rc = SDL_CaptureMouse(shouldCapture);
                    SDL_Log("%sapturing mouse %s!\n", shouldCapture ? "C" : "Unc", (rc == 0) ? "succeeded" : "failed");
                }
            }
            break;
        case SDLK_v:
            if (withControl) {
                /* Ctrl-V paste awesome text! */
                char *text = SDL_GetClipboardText();
                if (*text) {
                    SDL_Log("Clipboard: %s\n", text);
                } else {
                    SDL_Log("Clipboard is empty\n");
                }
                SDL_free(text);
            }
            break;
        case SDLK_f:
            if (withControl) {
                /* Ctrl-F flash the window */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    SDL_FlashWindow(window, SDL_FLASH_BRIEFLY);
                }
            }
            break;
        case SDLK_g:
            if (withControl) {
                /* Ctrl-G toggle mouse grab */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    SDL_SetWindowGrab(window, !SDL_GetWindowGrab(window) ? SDL_TRUE : SDL_FALSE);
                }
            }
            break;
        case SDLK_k:
            if (withControl) {
                /* Ctrl-K toggle keyboard grab */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    SDL_SetWindowKeyboardGrab(window, !SDL_GetWindowKeyboardGrab(window) ? SDL_TRUE : SDL_FALSE);
                }
            }
            break;
        case SDLK_m:
            if (withControl) {
                /* Ctrl-M maximize */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    Uint32 flags = SDL_GetWindowFlags(window);
                    if (flags & SDL_WINDOW_MAXIMIZED) {
                        SDL_RestoreWindow(window);
                    } else {
                        SDL_MaximizeWindow(window);
                    }
                }
            }
            break;
        case SDLK_r:
            if (withControl) {
                /* Ctrl-R toggle mouse relative mode */
                SDL_SetRelativeMouseMode(!SDL_GetRelativeMouseMode() ? SDL_TRUE : SDL_FALSE);
            }
            break;
        case SDLK_t:
            if (withControl) {
                /* Ctrl-T toggle topmost mode */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    Uint32 flags = SDL_GetWindowFlags(window);
                    if (flags & SDL_WINDOW_ALWAYS_ON_TOP) {
                        SDL_SetWindowAlwaysOnTop(window, SDL_FALSE);
                    } else {
                        SDL_SetWindowAlwaysOnTop(window, SDL_TRUE);
                    }
                }
            }
            break;
        case SDLK_z:
            if (withControl) {
                /* Ctrl-Z minimize */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    SDL_MinimizeWindow(window);
                }
            }
            break;
        case SDLK_RETURN:
            if (withControl) {
                /* Ctrl-Enter toggle fullscreen */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    Uint32 flags = SDL_GetWindowFlags(window);
                    if (flags & SDL_WINDOW_FULLSCREEN) {
                        SDL_SetWindowFullscreen(window, SDL_FALSE);
                    } else {
                        SDL_SetWindowFullscreen(window, SDL_TRUE);
                    }
                }
            } else if (withAlt) {
                /* Alt-Enter toggle fullscreen desktop */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    Uint32 flags = SDL_GetWindowFlags(window);
                    if (flags & SDL_WINDOW_FULLSCREEN) {
                        SDL_SetWindowFullscreen(window, SDL_FALSE);
                    } else {
                        SDL_SetWindowFullscreenMode(window, NULL);
                        SDL_SetWindowFullscreen(window, SDL_TRUE);
                    }
                }
            } else if (withShift) {
                /* Shift-Enter toggle fullscreen desktop / fullscreen */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    if (SDL_GetWindowFullscreenMode(window)) {
                        SDL_SetWindowFullscreenMode(window, NULL);
                    } else {
                        SDL_SetWindowFullscreenMode(window, &state->fullscreen_mode);
                    }
                    SDL_SetWindowFullscreen(window, SDL_TRUE);
                }
            }

            break;
        case SDLK_b:
            if (withControl) {
                /* Ctrl-B toggle window border */
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                if (window) {
                    const Uint32 flags = SDL_GetWindowFlags(window);
                    const SDL_bool b = (flags & SDL_WINDOW_BORDERLESS) ? SDL_TRUE : SDL_FALSE;
                    SDL_SetWindowBordered(window, b);
                }
            }
            break;
        case SDLK_a:
            if (withControl) {
                /* Ctrl-A reports absolute mouse position. */
                float x, y;
                const Uint32 mask = SDL_GetGlobalMouseState(&x, &y);
                SDL_Log("ABSOLUTE MOUSE: (%g, %g)%s%s%s%s%s\n", x, y,
                        (mask & SDL_BUTTON_LMASK) ? " [LBUTTON]" : "",
                        (mask & SDL_BUTTON_MMASK) ? " [MBUTTON]" : "",
                        (mask & SDL_BUTTON_RMASK) ? " [RBUTTON]" : "",
                        (mask & SDL_BUTTON_X1MASK) ? " [X2BUTTON]" : "",
                        (mask & SDL_BUTTON_X2MASK) ? " [X2BUTTON]" : "");
            }
            break;
        case SDLK_0:
            if (withControl) {
                SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);
                SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Test Message", "You're awesome!", window);
            }
            break;
        case SDLK_1:
            if (withControl) {
                FullscreenTo(state, 0, event->key.windowID);
            }
            break;
        case SDLK_2:
            if (withControl) {
                FullscreenTo(state, 1, event->key.windowID);
            }
            break;
        case SDLK_ESCAPE:
            *done = 1;
            break;
        case SDLK_SPACE:
        {
            char message[256];
            SDL_Window *window = SDL_GetWindowFromID(event->key.windowID);

            (void)SDL_snprintf(message, sizeof message, "(%g, %g), rel (%g, %g)\n",
                               lastEvent.x, lastEvent.y, lastEvent.xrel, lastEvent.yrel);
            SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Last mouse position", message, window);
            break;
        }
        default:
            break;
        }
        break;
    }
    case SDL_EVENT_QUIT:
        *done = 1;
        break;
    case SDL_EVENT_MOUSE_MOTION:
        lastEvent = event->motion;
        break;

    case SDL_EVENT_DROP_FILE:
    case SDL_EVENT_DROP_TEXT:
        SDL_free(event->drop.file);
        break;
    }
}

void SDLTest_CommonQuit(SDLTest_CommonState *state)
{
    int i;

    SDL_free(common_usage_video);
    SDL_free(common_usage_audio);
    SDL_free(common_usage_videoaudio);
    common_usage_video = NULL;
    common_usage_audio = NULL;
    common_usage_videoaudio = NULL;

    SDL_free(state->windows);
    if (state->targets) {
        for (i = 0; i < state->num_windows; ++i) {
            if (state->targets[i]) {
                SDL_DestroyTexture(state->targets[i]);
            }
        }
        SDL_free(state->targets);
    }
    if (state->renderers) {
        for (i = 0; i < state->num_windows; ++i) {
            if (state->renderers[i]) {
                SDL_DestroyRenderer(state->renderers[i]);
            }
        }
        SDL_free(state->renderers);
    }
    if (state->flags & SDL_INIT_VIDEO) {
        SDL_QuitSubSystem(SDL_INIT_VIDEO);
    }
    if (state->flags & SDL_INIT_AUDIO) {
        SDL_QuitSubSystem(SDL_INIT_AUDIO);
    }
    SDL_free(state);
    SDL_Quit();
    SDLTest_LogAllocations();
}

void SDLTest_CommonDrawWindowInfo(SDL_Renderer *renderer, SDL_Window *window, float *usedHeight)
{
    char text[1024];
    float textY = 0.0f;
    const int lineHeight = 10;
    int x, y, w, h;
    float fx, fy;
    SDL_Rect rect;
    const SDL_DisplayMode *mode;
    float scaleX, scaleY;
    Uint32 flags;
    SDL_DisplayID windowDisplayID = SDL_GetDisplayForWindow(window);
    SDL_RendererInfo info;
    SDL_RendererLogicalPresentation logical_presentation;
    SDL_ScaleMode logical_scale_mode;

    /* Video */

    SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
    SDLTest_DrawString(renderer, 0.0f, textY, "-- Video --");
    textY += lineHeight;

    SDL_SetRenderDrawColor(renderer, 170, 170, 170, 255);

    (void)SDL_snprintf(text, sizeof text, "SDL_GetCurrentVideoDriver: %s", SDL_GetCurrentVideoDriver());
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    /* Renderer */

    SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
    SDLTest_DrawString(renderer, 0.0f, textY, "-- Renderer --");
    textY += lineHeight;

    SDL_SetRenderDrawColor(renderer, 170, 170, 170, 255);

    if (0 == SDL_GetRendererInfo(renderer, &info)) {
        (void)SDL_snprintf(text, sizeof text, "SDL_GetRendererInfo: name: %s", info.name);
        SDLTest_DrawString(renderer, 0.0f, textY, text);
        textY += lineHeight;
    }

    if (0 == SDL_GetRenderOutputSize(renderer, &w, &h)) {
        (void)SDL_snprintf(text, sizeof text, "SDL_GetRenderOutputSize: %dx%d", w, h);
        SDLTest_DrawString(renderer, 0.0f, textY, text);
        textY += lineHeight;
    }

    if (0 == SDL_GetCurrentRenderOutputSize(renderer, &w, &h)) {
        (void)SDL_snprintf(text, sizeof text, "SDL_GetCurrentRenderOutputSize: %dx%d", w, h);
        SDLTest_DrawString(renderer, 0.0f, textY, text);
        textY += lineHeight;
    }

    SDL_GetRenderViewport(renderer, &rect);
    (void)SDL_snprintf(text, sizeof text, "SDL_GetRenderViewport: %d,%d, %dx%d",
                       rect.x, rect.y, rect.w, rect.h);
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    SDL_GetRenderScale(renderer, &scaleX, &scaleY);
    (void)SDL_snprintf(text, sizeof text, "SDL_GetRenderScale: %g,%g",
                       scaleX, scaleY);
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    SDL_GetRenderLogicalPresentation(renderer, &w, &h, &logical_presentation, &logical_scale_mode);
    (void)SDL_snprintf(text, sizeof text, "SDL_GetRenderLogicalPresentation: %dx%d ", w, h);
    SDLTest_PrintLogicalPresentation(text, sizeof text, logical_presentation);
    SDL_snprintfcat(text, sizeof text, ", ");
    SDLTest_PrintScaleMode(text, sizeof text, logical_scale_mode);
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    /* Window */

    SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
    SDLTest_DrawString(renderer, 0.0f, textY, "-- Window --");
    textY += lineHeight;

    SDL_SetRenderDrawColor(renderer, 170, 170, 170, 255);

    SDL_GetWindowPosition(window, &x, &y);
    (void)SDL_snprintf(text, sizeof text, "SDL_GetWindowPosition: %d,%d", x, y);
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    SDL_GetWindowSize(window, &w, &h);
    (void)SDL_snprintf(text, sizeof text, "SDL_GetWindowSize: %dx%d", w, h);
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    (void)SDL_snprintf(text, sizeof text, "SDL_GetWindowFlags: ");
    SDLTest_PrintWindowFlags(text, sizeof text, SDL_GetWindowFlags(window));
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    mode = SDL_GetWindowFullscreenMode(window);
    if (mode) {
        (void)SDL_snprintf(text, sizeof text, "SDL_GetWindowFullscreenMode: %dx%d@%gHz %d%% scale, (%s)",
                           mode->pixel_w, mode->pixel_h, mode->refresh_rate, (int)(mode->display_scale * 100.0f), SDL_GetPixelFormatName(mode->format));
        SDLTest_DrawString(renderer, 0.0f, textY, text);
        textY += lineHeight;
    }

    /* Display */

    SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
    SDLTest_DrawString(renderer, 0.0f, textY, "-- Display --");
    textY += lineHeight;

    SDL_SetRenderDrawColor(renderer, 170, 170, 170, 255);

    (void)SDL_snprintf(text, sizeof text, "SDL_GetDisplayForWindow: %" SDL_PRIu32 "", windowDisplayID);
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    (void)SDL_snprintf(text, sizeof text, "SDL_GetDisplayName: %s", SDL_GetDisplayName(windowDisplayID));
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    if (0 == SDL_GetDisplayBounds(windowDisplayID, &rect)) {
        (void)SDL_snprintf(text, sizeof text, "SDL_GetDisplayBounds: %d,%d, %dx%d",
                           rect.x, rect.y, rect.w, rect.h);
        SDLTest_DrawString(renderer, 0.0f, textY, text);
        textY += lineHeight;
    }

    mode = SDL_GetCurrentDisplayMode(windowDisplayID);
    if (mode) {
        (void)SDL_snprintf(text, sizeof text, "SDL_GetCurrentDisplayMode: %dx%d@%gHz %d%% scale, (%s)",
                           mode->pixel_w, mode->pixel_h, mode->refresh_rate, (int)(mode->display_scale * 100.0f), SDL_GetPixelFormatName(mode->format));
        SDLTest_DrawString(renderer, 0.0f, textY, text);
        textY += lineHeight;
    }

    mode = SDL_GetDesktopDisplayMode(windowDisplayID);
    if (mode) {
        (void)SDL_snprintf(text, sizeof text, "SDL_GetDesktopDisplayMode: %dx%d@%gHz %d%% scale, (%s)",
                           mode->pixel_w, mode->pixel_h, mode->refresh_rate, (int)(mode->display_scale * 100.0f), SDL_GetPixelFormatName(mode->format));
        SDLTest_DrawString(renderer, 0.0f, textY, text);
        textY += lineHeight;
    }

    (void)SDL_snprintf(text, sizeof text, "SDL_GetDisplayOrientation: ");
    SDLTest_PrintDisplayOrientation(text, sizeof text, SDL_GetDisplayOrientation(windowDisplayID));
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    /* Mouse */

    SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
    SDLTest_DrawString(renderer, 0.0f, textY, "-- Mouse --");
    textY += lineHeight;

    SDL_SetRenderDrawColor(renderer, 170, 170, 170, 255);

    flags = SDL_GetMouseState(&fx, &fy);
    (void)SDL_snprintf(text, sizeof text, "SDL_GetMouseState: %g,%g ", fx, fy);
    SDLTest_PrintButtonMask(text, sizeof text, flags);
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    flags = SDL_GetGlobalMouseState(&fx, &fy);
    (void)SDL_snprintf(text, sizeof text, "SDL_GetGlobalMouseState: %g,%g ", fx, fy);
    SDLTest_PrintButtonMask(text, sizeof text, flags);
    SDLTest_DrawString(renderer, 0.0f, textY, text);
    textY += lineHeight;

    if (usedHeight) {
        *usedHeight = textY;
    }
}
