Squashed 'external/SDL/' content from commit 716c767b7

git-subtree-dir: external/SDL git-subtree-split: 716c767b7e7099fb0e2fda9db59227a7e1d1d8a4
2026-05-13 17:47:57 +02:00
commit 411251c624
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+/*
+  Copyright (C) 1997-2026 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.
+*/
+
+/* Program to test querying of display info */
+
+#include <stdlib.h>
+
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+#include <SDL3/SDL_test.h>
+
+static void
+print_mode(const char *prefix, const SDL_DisplayMode *mode)
+{
+    if (!mode) {
+        return;
+    }
+
+    SDL_Log("%s: %dx%d@%gx, %gHz, fmt=%s",
+            prefix,
+            mode->w, mode->h, mode->pixel_density, mode->refresh_rate,
+            SDL_GetPixelFormatName(mode->format));
+}
+
+int main(int argc, char *argv[])
+{
+    SDL_DisplayID *displays;
+    SDL_DisplayMode **modes;
+    const SDL_DisplayMode *mode;
+    int num_displays, i;
+    SDLTest_CommonState *state;
+
+    /* Initialize test framework */
+    state = SDLTest_CommonCreateState(argv, SDL_INIT_VIDEO);
+    if (!state) {
+        return 1;
+    }
+
+    /* Parse commandline */
+    if (!SDLTest_CommonDefaultArgs(state, argc, argv)) {
+        return 1;
+    }
+
+    /* Load the SDL library */
+    if (!SDL_Init(SDL_INIT_VIDEO)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s", SDL_GetError());
+        return 1;
+    }
+
+    SDL_Log("Using video target '%s'.", SDL_GetCurrentVideoDriver());
+    displays = SDL_GetDisplays(&num_displays);
+
+    SDL_Log("See %d displays.", num_displays);
+
+    for (i = 0; i < num_displays; i++) {
+        SDL_DisplayID dpy = displays[i];
+        SDL_PropertiesID props = SDL_GetDisplayProperties(dpy);
+        SDL_Rect rect = { 0, 0, 0, 0 };
+        int m, num_modes = 0;
+        const bool has_HDR = SDL_GetBooleanProperty(props, SDL_PROP_DISPLAY_HDR_ENABLED_BOOLEAN, false);
+
+        SDL_GetDisplayBounds(dpy, &rect);
+        modes = SDL_GetFullscreenDisplayModes(dpy, &num_modes);
+        SDL_Log("%" SDL_PRIu32 ": \"%s\" (%dx%d at %d,%d), content scale %.2f, %d fullscreen modes, HDR capable: %s.", dpy, SDL_GetDisplayName(dpy), rect.w, rect.h, rect.x, rect.y, SDL_GetDisplayContentScale(dpy), num_modes, has_HDR ? "yes" : "no");
+
+        mode = SDL_GetCurrentDisplayMode(dpy);
+        if (mode) {
+            print_mode("CURRENT", mode);
+        } else {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "    CURRENT: failed to query (%s)", SDL_GetError());
+        }
+
+        mode = SDL_GetDesktopDisplayMode(dpy);
+        if (mode) {
+            print_mode("DESKTOP", mode);
+        } else {
+            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "    DESKTOP: failed to query (%s)", SDL_GetError());
+        }
+
+        for (m = 0; m < num_modes; m++) {
+            char prefix[64];
+            (void)SDL_snprintf(prefix, sizeof(prefix), "    MODE %d", m);
+            print_mode(prefix, modes[m]);
+        }
+        SDL_free(modes);
+
+        SDL_Log("%s", "");
+    }
+    SDL_free(displays);
+
+    SDL_Quit();
+    SDLTest_CommonDestroyState(state);
+    return 0;
+}