|
|
@@ -0,0 +1,333 @@
|
|
|
+/*
|
|
|
+ Copyright (C) 1997-2024 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 <stdlib.h>
|
|
|
+#include <time.h>
|
|
|
+
|
|
|
+#include <SDL3/SDL.h>
|
|
|
+#include <wayland-client.h>
|
|
|
+#include <xdg-shell-client-protocol.h>
|
|
|
+
|
|
|
+#include "icon.h"
|
|
|
+
|
|
|
+#define WINDOW_WIDTH 640
|
|
|
+#define WINDOW_HEIGHT 480
|
|
|
+#define NUM_SPRITES 100
|
|
|
+#define MAX_SPEED 1
|
|
|
+
|
|
|
+static SDL_Window *window;
|
|
|
+static SDL_Renderer *renderer;
|
|
|
+static SDL_Texture *sprite;
|
|
|
+static SDL_FRect positions[NUM_SPRITES];
|
|
|
+static SDL_FRect velocities[NUM_SPRITES];
|
|
|
+static int sprite_w, sprite_h;
|
|
|
+static int done;
|
|
|
+
|
|
|
+static SDL_Texture *CreateTexture(SDL_Renderer *r, unsigned char *data, unsigned int len, int *w, int *h)
|
|
|
+{
|
|
|
+ SDL_Texture *texture = NULL;
|
|
|
+ SDL_Surface *surface;
|
|
|
+ SDL_RWops *src = SDL_RWFromConstMem(data, len);
|
|
|
+ if (src) {
|
|
|
+ surface = SDL_LoadBMP_RW(src, SDL_TRUE);
|
|
|
+ if (surface) {
|
|
|
+ /* Treat white as transparent */
|
|
|
+ SDL_SetSurfaceColorKey(surface, SDL_TRUE, SDL_MapRGB(surface->format, 255, 255, 255));
|
|
|
+
|
|
|
+ texture = SDL_CreateTextureFromSurface(r, surface);
|
|
|
+ *w = surface->w;
|
|
|
+ *h = surface->h;
|
|
|
+ SDL_DestroySurface(surface);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return texture;
|
|
|
+}
|
|
|
+
|
|
|
+static void MoveSprites(void)
|
|
|
+{
|
|
|
+ int i;
|
|
|
+ int window_w;
|
|
|
+ int window_h;
|
|
|
+ SDL_FRect *position, *velocity;
|
|
|
+
|
|
|
+ /* Get the window size */
|
|
|
+ SDL_GetWindowSizeInPixels(window, &window_w, &window_h);
|
|
|
+
|
|
|
+ /* Draw a gray background */
|
|
|
+ SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
|
|
|
+ SDL_RenderClear(renderer);
|
|
|
+
|
|
|
+ /* Move the sprite, bounce at the wall, and draw */
|
|
|
+ for (i = 0; i < NUM_SPRITES; ++i) {
|
|
|
+ position = &positions[i];
|
|
|
+ velocity = &velocities[i];
|
|
|
+ position->x += velocity->x;
|
|
|
+ if ((position->x < 0) || (position->x >= (window_w - sprite_w))) {
|
|
|
+ velocity->x = -velocity->x;
|
|
|
+ position->x += velocity->x;
|
|
|
+ }
|
|
|
+ position->y += velocity->y;
|
|
|
+ if ((position->y < 0) || (position->y >= (window_h - sprite_h))) {
|
|
|
+ velocity->y = -velocity->y;
|
|
|
+ position->y += velocity->y;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Blit the sprite onto the screen */
|
|
|
+ SDL_RenderTexture(renderer, sprite, NULL, position);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Update the screen! */
|
|
|
+ SDL_RenderPresent(renderer);
|
|
|
+}
|
|
|
+
|
|
|
+static int InitSprites(void)
|
|
|
+{
|
|
|
+ /* Create the sprite texture and initialize the sprite positions */
|
|
|
+ sprite = CreateTexture(renderer, icon_bmp, icon_bmp_len, &sprite_w, &sprite_h);
|
|
|
+
|
|
|
+ if (!sprite) {
|
|
|
+ SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to create sprite texture");
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ srand((unsigned int)time(NULL));
|
|
|
+ for (int i = 0; i < NUM_SPRITES; ++i) {
|
|
|
+ positions[i].x = (float)(rand() % (WINDOW_WIDTH - sprite_w));
|
|
|
+ positions[i].y = (float)(rand() % (WINDOW_HEIGHT - sprite_h));
|
|
|
+ positions[i].w = (float)sprite_w;
|
|
|
+ positions[i].h = (float)sprite_h;
|
|
|
+ velocities[i].x = 0.0f;
|
|
|
+ velocities[i].y = 0.0f;
|
|
|
+ while (!velocities[i].x && !velocities[i].y) {
|
|
|
+ velocities[i].x = (float)((rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED);
|
|
|
+ velocities[i].y = (float)((rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/* Encapsulated in a struct to silence shadow variable warnings */
|
|
|
+static struct _state
|
|
|
+{
|
|
|
+ /* These are owned by SDL and must not be destroyed! */
|
|
|
+ struct wl_display *wl_display;
|
|
|
+ struct wl_surface *wl_surface;
|
|
|
+
|
|
|
+ /* These are owned by the application and need to be cleaned up on exit. */
|
|
|
+ struct wl_registry *wl_registry;
|
|
|
+ struct xdg_wm_base *xdg_wm_base;
|
|
|
+ struct xdg_surface *xdg_surface;
|
|
|
+ struct xdg_toplevel *xdg_toplevel;
|
|
|
+} state;
|
|
|
+
|
|
|
+static void xdg_surface_configure(void *data, struct xdg_surface *xdg_surface, uint32_t serial)
|
|
|
+{
|
|
|
+ xdg_surface_ack_configure(state.xdg_surface, serial);
|
|
|
+}
|
|
|
+
|
|
|
+static const struct xdg_surface_listener xdg_surface_listener = {
|
|
|
+ .configure = xdg_surface_configure,
|
|
|
+};
|
|
|
+
|
|
|
+static void xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height, struct wl_array *states)
|
|
|
+{
|
|
|
+ /* NOP */
|
|
|
+}
|
|
|
+
|
|
|
+static void xdg_toplevel_close(void *data, struct xdg_toplevel *xdg_toplevel)
|
|
|
+{
|
|
|
+ done = 1;
|
|
|
+}
|
|
|
+
|
|
|
+static void xdg_toplevel_configure_bounds(void *data, struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height)
|
|
|
+{
|
|
|
+ /* NOP */
|
|
|
+}
|
|
|
+
|
|
|
+static void xdg_toplevel_wm_capabilities(void *data, struct xdg_toplevel *xdg_toplevel, struct wl_array *capabilities)
|
|
|
+{
|
|
|
+ /* NOP */
|
|
|
+}
|
|
|
+
|
|
|
+static const struct xdg_toplevel_listener xdg_toplevel_listener = {
|
|
|
+ .configure = xdg_toplevel_configure,
|
|
|
+ .close = xdg_toplevel_close,
|
|
|
+ .configure_bounds = xdg_toplevel_configure_bounds,
|
|
|
+ .wm_capabilities = xdg_toplevel_wm_capabilities
|
|
|
+};
|
|
|
+
|
|
|
+static void xdg_wm_base_ping(void *data, struct xdg_wm_base *xdg_wm_base, uint32_t serial)
|
|
|
+{
|
|
|
+ xdg_wm_base_pong(state.xdg_wm_base, serial);
|
|
|
+}
|
|
|
+
|
|
|
+static const struct xdg_wm_base_listener xdg_wm_base_listener = {
|
|
|
+ .ping = xdg_wm_base_ping,
|
|
|
+};
|
|
|
+
|
|
|
+static void registry_global(void *data, struct wl_registry *wl_registry, uint32_t name, const char *interface, uint32_t version)
|
|
|
+{
|
|
|
+ if (SDL_strcmp(interface, xdg_wm_base_interface.name) == 0) {
|
|
|
+ state.xdg_wm_base = wl_registry_bind(state.wl_registry, name, &xdg_wm_base_interface, 1);
|
|
|
+ xdg_wm_base_add_listener(state.xdg_wm_base, &xdg_wm_base_listener, NULL);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void registry_global_remove(void *data, struct wl_registry *wl_registry, uint32_t name)
|
|
|
+{
|
|
|
+ /* NOP */
|
|
|
+}
|
|
|
+
|
|
|
+static const struct wl_registry_listener wl_registry_listener = {
|
|
|
+ .global = registry_global,
|
|
|
+ .global_remove = registry_global_remove,
|
|
|
+};
|
|
|
+
|
|
|
+int main(int argc, char **argv)
|
|
|
+{
|
|
|
+ int ret = -1;
|
|
|
+ SDL_PropertiesID props;
|
|
|
+
|
|
|
+ if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS) != 0) {
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (SDL_strcmp(SDL_GetCurrentVideoDriver(), "wayland") != 0) {
|
|
|
+ SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Video driver must be 'wayland', not '%s'", SDL_GetCurrentVideoDriver());
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Create a window with the custom surface role property set. */
|
|
|
+ props = SDL_CreateProperties();
|
|
|
+ SDL_SetBooleanProperty(props, SDL_PROPERTY_WINDOW_CREATE_WAYLAND_SURFACE_ROLE_CUSTOM_BOOLEAN, SDL_TRUE); /* Roleless surface */
|
|
|
+ SDL_SetBooleanProperty(props, SDL_PROPERTY_WINDOW_CREATE_OPENGL_BOOLEAN, SDL_TRUE); /* OpenGL enabled */
|
|
|
+ SDL_SetNumberProperty(props, SDL_PROPERTY_WINDOW_CREATE_WIDTH_NUMBER, WINDOW_WIDTH); /* Default width */
|
|
|
+ SDL_SetNumberProperty(props, SDL_PROPERTY_WINDOW_CREATE_HEIGHT_NUMBER, WINDOW_HEIGHT); /* Default height */
|
|
|
+ SDL_SetBooleanProperty(props, SDL_PROPERTY_WINDOW_CREATE_HIGH_PIXEL_DENSITY_BOOLEAN, SDL_TRUE); /* Handle DPI scaling internally */
|
|
|
+ SDL_SetStringProperty(props, SDL_PROPERTY_WINDOW_CREATE_TITLE_STRING, "Wayland custom surface role test"); /* Default title */
|
|
|
+
|
|
|
+ window = SDL_CreateWindowWithProperties(props);
|
|
|
+ if (!window) {
|
|
|
+ SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Window creation failed");
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Create the renderer */
|
|
|
+ renderer = SDL_CreateRenderer(window, NULL, 0);
|
|
|
+ if (!renderer) {
|
|
|
+ SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Renderer creation failed");
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Get the display object and use it to create a registry object, which will enumerate the xdg_wm_base protocol. */
|
|
|
+ state.wl_display = SDL_GetProperty(SDL_GetWindowProperties(window), SDL_PROPERTY_WINDOW_WAYLAND_DISPLAY_POINTER, NULL);
|
|
|
+ state.wl_registry = wl_display_get_registry(state.wl_display);
|
|
|
+ wl_registry_add_listener(state.wl_registry, &wl_registry_listener, NULL);
|
|
|
+
|
|
|
+ /* Roundtrip to enumerate registry objects. */
|
|
|
+ wl_display_roundtrip(state.wl_display);
|
|
|
+
|
|
|
+ if (!state.xdg_wm_base) {
|
|
|
+ SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "'xdg_wm_base' protocol not found!");
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Get the wl_surface object from the SDL_Window, and create a toplevel window with it. */
|
|
|
+ state.wl_surface = SDL_GetProperty(SDL_GetWindowProperties(window), SDL_PROPERTY_WINDOW_WAYLAND_SURFACE_POINTER, NULL);
|
|
|
+
|
|
|
+ /* Create the xdg_surface from the wl_surface. */
|
|
|
+ state.xdg_surface = xdg_wm_base_get_xdg_surface(state.xdg_wm_base, state.wl_surface);
|
|
|
+ xdg_surface_add_listener(state.xdg_surface, &xdg_surface_listener, NULL);
|
|
|
+
|
|
|
+ /* Create the xdg_toplevel from the xdg_surface. */
|
|
|
+ state.xdg_toplevel = xdg_surface_get_toplevel(state.xdg_surface);
|
|
|
+ xdg_toplevel_add_listener(state.xdg_toplevel, &xdg_toplevel_listener, NULL);
|
|
|
+ xdg_toplevel_set_title(state.xdg_toplevel, SDL_GetWindowTitle(window));
|
|
|
+
|
|
|
+ /* Initialize the sprites. */
|
|
|
+ if (InitSprites() < 0) {
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ while (!done) {
|
|
|
+ SDL_Event event;
|
|
|
+ while (SDL_PollEvent(&event)) {
|
|
|
+ if (event.type == SDL_EVENT_KEY_DOWN) {
|
|
|
+ switch (event.key.keysym.sym) {
|
|
|
+ case SDLK_ESCAPE:
|
|
|
+ done = 1;
|
|
|
+ break;
|
|
|
+ case SDLK_EQUALS:
|
|
|
+ /* Ctrl+ enlarges the window */
|
|
|
+ if (event.key.keysym.mod & SDL_KMOD_CTRL) {
|
|
|
+ int w, h;
|
|
|
+ SDL_GetWindowSize(window, &w, &h);
|
|
|
+ SDL_SetWindowSize(window, w * 2, h * 2);
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case SDLK_MINUS:
|
|
|
+ /* Ctrl- shrinks the window */
|
|
|
+ if (event.key.keysym.mod & SDL_KMOD_CTRL) {
|
|
|
+ int w, h;
|
|
|
+ SDL_GetWindowSize(window, &w, &h);
|
|
|
+ SDL_SetWindowSize(window, w / 2, h / 2);
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Draw the sprites */
|
|
|
+ MoveSprites();
|
|
|
+ }
|
|
|
+
|
|
|
+ ret = 0;
|
|
|
+
|
|
|
+exit:
|
|
|
+ /* The display and surface handles obtained from SDL are owned by SDL and must *NOT* be destroyed here! */
|
|
|
+ if (state.xdg_toplevel) {
|
|
|
+ xdg_toplevel_destroy(state.xdg_toplevel);
|
|
|
+ state.xdg_toplevel = NULL;
|
|
|
+ }
|
|
|
+ if (state.xdg_surface) {
|
|
|
+ xdg_surface_destroy(state.xdg_surface);
|
|
|
+ state.xdg_surface = NULL;
|
|
|
+ }
|
|
|
+ if (state.xdg_wm_base) {
|
|
|
+ xdg_wm_base_destroy(state.xdg_wm_base);
|
|
|
+ state.xdg_wm_base = NULL;
|
|
|
+ }
|
|
|
+ if (state.wl_registry) {
|
|
|
+ wl_registry_destroy(state.wl_registry);
|
|
|
+ state.wl_registry = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Destroy the SDL resources */
|
|
|
+ if (sprite) {
|
|
|
+ SDL_DestroyTexture(sprite);
|
|
|
+ sprite = NULL;
|
|
|
+ }
|
|
|
+ if (renderer) {
|
|
|
+ SDL_DestroyRenderer(renderer);
|
|
|
+ renderer = NULL;
|
|
|
+ }
|
|
|
+ if (window) {
|
|
|
+ SDL_DestroyWindow(window);
|
|
|
+ window = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ SDL_Quit();
|
|
|
+ return ret;
|
|
|
+}
|
Frank Praznik