Update to SDL3

1 files changed, 345 insertions, 0 deletions

diff --git a/src/contrib/SDL-3.2.20/test/testmouse.c b/src/contrib/SDL-3.2.20/test/testmouse.c
new file mode 100644
index 0000000..bc839c0
--- /dev/null
+++ b/src/contrib/SDL-3.2.20/test/testmouse.c
@@ -0,0 +1,345 @@
+/*
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely.
+*/
+
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+#include <SDL3/SDL_test.h>
+
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+#include <emscripten/emscripten.h>
+#endif
+
+#include <stdlib.h> /* exit() */
+
+#ifdef SDL_PLATFORM_3DS
+/* For mouse-based tests, we want to have the window on the touch screen */
+#define SCREEN_X 40
+#define SCREEN_Y 240
+#define SCREEN_WIDTH    320
+#define SCREEN_HEIGHT   240
+#elif defined(SDL_PLATFORM_IOS)
+#define SCREEN_WIDTH    320
+#define SCREEN_HEIGHT   480
+#else
+#define SCREEN_WIDTH  640
+#define SCREEN_HEIGHT 480
+#endif
+
+static SDL_Window *window;
+
+typedef struct _Object
+{
+    struct _Object *next;
+
+    float x1, y1, x2, y2;
+    Uint8 r, g, b;
+
+    bool isRect;
+} Object;
+
+static Object *active = NULL;
+static Object *objects = NULL;
+static int buttons = 0;
+static bool isRect = false;
+
+static bool wheel_x_active = false;
+static bool wheel_y_active = false;
+static float wheel_x = SCREEN_WIDTH * 0.5f;
+static float wheel_y = SCREEN_HEIGHT * 0.5f;
+
+struct mouse_loop_data {
+    bool done;
+    SDL_Renderer *renderer;
+};
+
+static void DrawObject(SDL_Renderer *renderer, Object *object)
+{
+    SDL_SetRenderDrawColor(renderer, object->r, object->g, object->b, 255);
+
+    if (object->isRect) {
+        SDL_FRect rect;
+
+        if (object->x1 > object->x2) {
+            rect.x = object->x2;
+            rect.w = object->x1 - object->x2;
+        } else {
+            rect.x = object->x1;
+            rect.w = object->x2 - object->x1;
+        }
+
+        if (object->y1 > object->y2) {
+            rect.y = object->y2;
+            rect.h = object->y1 - object->y2;
+        } else {
+            rect.y = object->y1;
+            rect.h = object->y2 - object->y1;
+        }
+
+        SDL_RenderFillRect(renderer, &rect);
+    } else {
+        SDL_RenderLine(renderer, object->x1, object->y1, object->x2, object->y2);
+    }
+}
+
+static void DrawObjects(SDL_Renderer *renderer)
+{
+    Object *next = objects;
+    while (next) {
+        DrawObject(renderer, next);
+        next = next->next;
+    }
+}
+
+static void AppendObject(Object *object)
+{
+    if (objects) {
+        Object *next = objects;
+        while (next->next) {
+            next = next->next;
+        }
+        next->next = object;
+    } else {
+        objects = object;
+    }
+}
+
+static void loop(void *arg)
+{
+    struct mouse_loop_data *loop_data = (struct mouse_loop_data *)arg;
+    SDL_Event event;
+    SDL_Renderer *renderer = loop_data->renderer;
+
+    /* Check for events */
+    while (SDL_PollEvent(&event)) {
+        switch (event.type) {
+        case SDL_EVENT_MOUSE_WHEEL:
+            if (event.wheel.direction == SDL_MOUSEWHEEL_FLIPPED) {
+                event.wheel.x *= -1;
+                event.wheel.y *= -1;
+            }
+            if (event.wheel.x != 0.0f) {
+                wheel_x_active = true;
+                /* "positive to the right and negative to the left"  */
+                wheel_x += event.wheel.x * 10.0f;
+            }
+            if (event.wheel.y != 0.0f) {
+                wheel_y_active = true;
+                /* "positive away from the user and negative towards the user" */
+                wheel_y -= event.wheel.y * 10.0f;
+            }
+            break;
+
+        case SDL_EVENT_MOUSE_MOTION:
+            if (!active) {
+                break;
+            }
+
+            active->x2 = event.motion.x;
+            active->y2 = event.motion.y;
+            break;
+
+        case SDL_EVENT_MOUSE_BUTTON_DOWN:
+            if (!active) {
+                active = SDL_calloc(1, sizeof(*active));
+                active->x1 = active->x2 = event.button.x;
+                active->y1 = active->y2 = event.button.y;
+                active->isRect = isRect;
+            }
+
+            switch (event.button.button) {
+            case SDL_BUTTON_LEFT:
+                active->r = 255;
+                buttons |= SDL_BUTTON_LMASK;
+                break;
+            case SDL_BUTTON_MIDDLE:
+                active->g = 255;
+                buttons |= SDL_BUTTON_MMASK;
+                break;
+            case SDL_BUTTON_RIGHT:
+                active->b = 255;
+                buttons |= SDL_BUTTON_RMASK;
+                break;
+            case SDL_BUTTON_X1:
+                active->r = 255;
+                active->b = 255;
+                buttons |= SDL_BUTTON_X1MASK;
+                break;
+            case SDL_BUTTON_X2:
+                active->g = 255;
+                active->b = 255;
+                buttons |= SDL_BUTTON_X2MASK;
+                break;
+            }
+            break;
+
+        case SDL_EVENT_MOUSE_BUTTON_UP:
+            if (!active) {
+                break;
+            }
+
+            switch (event.button.button) {
+            case SDL_BUTTON_LEFT:
+                buttons &= ~SDL_BUTTON_LMASK;
+                break;
+            case SDL_BUTTON_MIDDLE:
+                buttons &= ~SDL_BUTTON_MMASK;
+                break;
+            case SDL_BUTTON_RIGHT:
+                buttons &= ~SDL_BUTTON_RMASK;
+                break;
+            case SDL_BUTTON_X1:
+                buttons &= ~SDL_BUTTON_X1MASK;
+                break;
+            case SDL_BUTTON_X2:
+                buttons &= ~SDL_BUTTON_X2MASK;
+                break;
+            }
+
+            if (buttons == 0) {
+                AppendObject(active);
+                active = NULL;
+            }
+            break;
+
+        case SDL_EVENT_KEY_DOWN:
+            if (event.key.key == SDLK_C) {
+                int x, y, w, h;
+                SDL_GetWindowPosition(window, &x, &y);
+                SDL_GetWindowSize(window, &w, &h);
+                w /= 2;
+                h /= 2;
+
+                if (event.key.mod & SDL_KMOD_ALT) {
+                    SDL_WarpMouseGlobal((float)(x + w), (float)(y + h));
+                } else {
+                    SDL_WarpMouseInWindow(window, (float)w, (float)h);
+                }
+            }
+            SDL_FALLTHROUGH;
+        case SDL_EVENT_KEY_UP:
+            switch (event.key.key) {
+            case SDLK_LSHIFT:
+                isRect = event.key.down;
+                if (active) {
+                    active->isRect = isRect;
+                }
+                break;
+            default:
+                break;
+            }
+            break;
+
+        case SDL_EVENT_QUIT:
+            loop_data->done = true;
+            break;
+
+        default:
+            break;
+        }
+    }
+
+    SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
+    SDL_RenderClear(renderer);
+
+    /* Mouse wheel */
+    SDL_SetRenderDrawColor(renderer, 0, 255, 128, 255);
+    if (wheel_x_active) {
+        SDL_RenderLine(renderer, wheel_x, 0.0f, wheel_x, (float)SCREEN_HEIGHT);
+    }
+    if (wheel_y_active) {
+        SDL_RenderLine(renderer, 0.0f, wheel_y, (float)SCREEN_WIDTH, wheel_y);
+    }
+
+    /* Objects from mouse clicks */
+    DrawObjects(renderer);
+    if (active) {
+        DrawObject(renderer, active);
+    }
+
+    SDL_RenderPresent(renderer);
+
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+    if (loop_data->done) {
+        emscripten_cancel_main_loop();
+    }
+#endif
+}
+
+int main(int argc, char *argv[])
+{
+    struct mouse_loop_data loop_data;
+    SDLTest_CommonState *state;
+#ifdef SDL_PLATFORM_3DS
+    SDL_PropertiesID props;
+#endif
+
+    /* Initialize test framework */
+    state = SDLTest_CommonCreateState(argv, 0);
+    if (!state) {
+        return 1;
+    }
+
+    /* Parse commandline */
+    if (!SDLTest_CommonDefaultArgs(state, argc, argv)) {
+        return 1;
+    }
+
+    /* Initialize SDL (Note: video is required to start event loop) */
+    if (!SDL_Init(SDL_INIT_VIDEO)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s", SDL_GetError());
+        exit(1);
+    }
+
+    /* Create a window to display joystick axis position */
+#ifdef SDL_PLATFORM_3DS
+    props = SDL_CreateProperties();
+    SDL_SetStringProperty(props, SDL_PROP_WINDOW_CREATE_TITLE_STRING, "Mouse Test");
+    SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_X_NUMBER, SCREEN_X);
+    SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_Y_NUMBER, SCREEN_Y);
+    SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_WIDTH_NUMBER, SCREEN_WIDTH);
+    SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_HEIGHT_NUMBER, SCREEN_HEIGHT);
+    SDL_SetNumberProperty(props, "flags", 0);
+    window = SDL_CreateWindowWithProperties(props);
+#else
+    window = SDL_CreateWindow("Mouse Test", SCREEN_WIDTH, SCREEN_HEIGHT, 0);
+#endif
+    if (!window) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s", SDL_GetError());
+        return 0;
+    }
+
+    loop_data.done = false;
+
+    loop_data.renderer = SDL_CreateRenderer(window, NULL);
+    if (!loop_data.renderer) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s", SDL_GetError());
+        SDL_DestroyWindow(window);
+        return 0;
+    }
+
+    /* Main render loop */
+#ifdef SDL_PLATFORM_EMSCRIPTEN
+    emscripten_set_main_loop_arg(loop, &loop_data, 0, 1);
+#else
+    while (loop_data.done == false) {
+        loop(&loop_data);
+    }
+#endif
+
+    SDL_DestroyRenderer(loop_data.renderer);
+    SDL_DestroyWindow(window);
+
+    SDL_Quit();
+    SDLTest_CommonDestroyState(state);
+
+    return 0;
+}