Added neko stuff but broken as fuck

.vscode/settings.json

@@ -0,0 +1,12 @@
+{
+    "files.associations": {
+        "stdio.h": "c",
+        "sdl_main.h": "c",
+        "neko.h": "c",
+        "sdl_image.h": "c",
+        "array": "c",
+        "string": "c",
+        "string_view": "c",
+        "shape.h": "c"
+    }
+}

Readme.md

@@ -1,6 +1,10 @@
 # Catz Attack
+
+## Dependency
+- A compositor, it can be installed using `nix-shell -p xcompmgr`. But it might be better to embedd it directly because nix is slow as fuck
+
 ## Todo list
 - [x] Create a X window transparent overlay
-- [ ] Afficher images
+- [x] Afficher images
 - [ ] Afficher vidéos
 - [ ] Jouer du son

build.sh

@@ -1,8 +1,8 @@
 #!/bin/sh
 
 echo Building with ...
-echo gcc src/main.c -o res/main $(pkg-config --cflags --libs sdl3 x11 xfixes)
-gcc src/main.c -o res/main $(pkg-config --cflags --libs sdl3 x11 xfixes)
+echo gcc src/main.c -o res/main $(pkg-config --cflags --libs sdl3 x11 xfixes sdl3-image)
+gcc src/main.c src/neko.c -I src/ -o res/main $(pkg-config --cflags --libs sdl3 x11 xfixes sdl3-image)
 
 echo Running...
-./res/main
+DISPLAY=:1 ./res/main

src/common.h

@@ -0,0 +1,7 @@
+#ifndef COMMON_H
+#define COMMON_H
+
+extern int WINDOW_WIDTH;
+extern int WINDOW_HEIGHT;
+
+#endif

src/main.c

@@ -12,20 +12,37 @@
 #include <X11/Xlib.h>
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xfixes.h>
+#include <X11/Xutil.h>
 
 #include <SDL3/SDL.h>
 #include <SDL3/SDL_main.h>
+#include <SDL3_image/SDL_image.h>
+
 #include <stdio.h>
 
+#include "neko.h"
+#include "common.h"
+
 /* We will use this renderer to draw into this window every frame. */
 static SDL_Window *window = NULL;
 static SDL_Renderer *renderer = NULL;
-static SDL_Texture *texture = NULL;
-static int texture_width = 0;
-static int texture_height = 0;
+static IMG_Animation *anim;
+static SDL_Texture **anim_textures;
+static int current_frame = 1;
 
-static int WINDOW_WIDTH;
-static int WINDOW_HEIGHT;
+int WINDOW_WIDTH;
+int WINDOW_HEIGHT;
+
+void set_override_redirect() {
+    Display *dpy = (Display *)SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_X11_DISPLAY_POINTER, NULL);
+    Window xwin = (Window)SDL_GetNumberProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_X11_WINDOW_NUMBER, 0);
+
+    XSetWindowAttributes attrs;
+    attrs.override_redirect = True;
+
+    XChangeWindowAttributes(dpy, xwin, CWOverrideRedirect, &attrs);
+    XFlush(dpy);
+}
 
 void make_window_clickthrough() {
     Display *dpy = (Display *)SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_X11_DISPLAY_POINTER, NULL);
@@ -40,11 +57,15 @@ void make_window_clickthrough() {
     XFlush(dpy);
 }
 
+Uint32 increment_frame(void *userdata, SDL_TimerID timerID, Uint32 interval){
+    current_frame = (current_frame+1) % anim->count;
+    return(interval);
+}
+
 /* This function runs once at startup. */
 SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
 {
-    SDL_Surface *surface = NULL;
-    char *bmp_path = NULL;
+    char *gif_path = NULL;
 
     SDL_SetAppMetadata("systemd", "1.0", "org.kernel.systemd");
 
@@ -67,7 +88,6 @@ SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
     WINDOW_WIDTH = DisplayMode->w;
     WINDOW_HEIGHT = DisplayMode->h;
 
-
     if (!SDL_CreateWindowAndRenderer("systemd", WINDOW_WIDTH, WINDOW_HEIGHT,
         SDL_WINDOW_TRANSPARENT | SDL_WINDOW_ALWAYS_ON_TOP | SDL_WINDOW_BORDERLESS ,
         &window, &renderer)) {
@@ -76,32 +96,31 @@ SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
     }
 
     make_window_clickthrough();
+    set_override_redirect();
 
-    /* Textures are pixel data that we upload to the video hardware for fast drawing. Lots of 2D
-       engines refer to these as "sprites." We'll do a static texture (upload once, draw many
-       times) with data from a bitmap file. */
+    neko_init(renderer);
 
-    /* SDL_Surface is pixel data the CPU can access. SDL_Texture is pixel data the GPU can access.
-       Load a .bmp into a surface, move it to a texture from there. */
-    SDL_asprintf(&bmp_path, "%ssample.bmp", SDL_GetBasePath());  /* allocate a string of the full file path */
-    surface = SDL_LoadBMP(bmp_path);
-    if (!surface) {
-        SDL_Log("Couldn't load bitmap: %s", SDL_GetError());
+    /* Open the image file */
+    SDL_asprintf(&gif_path, "%ssample.gif", SDL_GetBasePath());
+    anim = IMG_LoadAnimation(gif_path);
+    if (!anim) {
+        SDL_Log("Couldn't load %s: %s\n", gif_path, SDL_GetError());
         return SDL_APP_FAILURE;
     }
+    SDL_free(gif_path);  /* done with this, the file is loaded. */
+    int aw = anim->w;
+    int ah = anim->h;
 
-    SDL_free(bmp_path);  /* done with this, the file is loaded. */
-
-    texture_width = surface->w;
-    texture_height = surface->h;
-
-    texture = SDL_CreateTextureFromSurface(renderer, surface);
-    if (!texture) {
-        SDL_Log("Couldn't create static texture: %s", SDL_GetError());
+    anim_textures = (SDL_Texture **)SDL_calloc(anim->count, sizeof(*anim_textures));
+    if (!anim_textures) {
+        SDL_Log("Couldn't allocate textures\n");
+        IMG_FreeAnimation(anim);
         return SDL_APP_FAILURE;
     }
-
-    SDL_DestroySurface(surface);  /* done with this, the texture has a copy of the pixels now. */
+    for (int i = 0; i < anim->count; ++i) {
+        anim_textures[i] = SDL_CreateTextureFromSurface(renderer, anim->frames[i]);
+    }
+    SDL_AddTimer(anim->delays[0], increment_frame, NULL);
 
     return SDL_APP_CONTINUE;  /* carry on with the program! */
 }
@@ -121,37 +140,18 @@ SDL_AppResult SDL_AppIterate(void *appstate)
     SDL_FRect dst_rect;
     const Uint64 now = SDL_GetTicks();
 
-    /* we'll have some textures move around over a few seconds. */
-    const float direction = ((now % 2000) >= 1000) ? 1.0f : -1.0f;
-    const float scale = ((float) (((int) (now % 1000)) - 500) / 500.0f) * direction;
-
     /* as you can see from this, rendering draws over whatever was drawn before it. */
     SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_TRANSPARENT);  /* black, full alpha */
     SDL_RenderClear(renderer);  /* start with a blank canvas. */
 
-    /* Just draw the static texture a few times. You can think of it like a
-       stamp, there isn't a limit to the number of times you can draw with it. */
-
-    /* top left */
-    dst_rect.x = (100.0f * scale);
-    dst_rect.y = 0.0f;
-    dst_rect.w = (float) texture_width;
-    dst_rect.h = (float) texture_height;
-    SDL_RenderTexture(renderer, texture, NULL, &dst_rect);
-
-    /* center this one. */
-    dst_rect.x = ((float) (WINDOW_WIDTH - texture_width)) / 2.0f;
-    dst_rect.y = ((float) (WINDOW_HEIGHT - texture_height)) / 2.0f;
-    dst_rect.w = (float) texture_width;
-    dst_rect.h = (float) texture_height;
-    SDL_RenderTexture(renderer, texture, NULL, &dst_rect);
-
-    /* bottom right. */
-    dst_rect.x = ((float) (WINDOW_WIDTH - texture_width)) - (100.0f * scale);
-    dst_rect.y = (float) (WINDOW_HEIGHT - texture_height);
-    dst_rect.w = (float) texture_width;
-    dst_rect.h = (float) texture_height;
-    SDL_RenderTexture(renderer, texture, NULL, &dst_rect);
+    neko_render(renderer, window);
+    /*
+    dst_rect.x = WINDOW_HEIGHT/2;
+    dst_rect.y = WINDOW_HEIGHT/2;
+    dst_rect.h = WINDOW_HEIGHT/10;
+    dst_rect.w = WINDOW_HEIGHT/10;
+    SDL_RenderTexture(renderer, anim_textures[current_frame], NULL, &dst_rect);
+    */
 
     SDL_RenderPresent(renderer);  /* put it all on the screen! */
 
@@ -161,6 +161,31 @@ SDL_AppResult SDL_AppIterate(void *appstate)
 /* This function runs once at shutdown. */
 void SDL_AppQuit(void *appstate, SDL_AppResult result)
 {
-    SDL_DestroyTexture(texture);
+    neko_quit();
     /* SDL will clean up the window/renderer for us. */
 }
+
+/* BACKUP SDL_AppIterate
+
+    const float direction = ((now % 2000) >= 1000) ? 1.0f : -1.0f;
+    const float scale = ((float) (((int) (now % 1000)) - 500) / 500.0f) * direction;
+
+    dst_rect.x = (100.0f * scale);
+    dst_rect.y = 0.0f;
+    dst_rect.w = (float) texture_width;
+    dst_rect.h = (float) texture_height;
+    SDL_RenderTexture(renderer, texture, NULL, &dst_rect);
+
+
+    dst_rect.x = ((float) (WINDOW_WIDTH - texture_width)) / 2.0f;
+    dst_rect.y = ((float) (WINDOW_HEIGHT - texture_height)) / 2.0f;
+    dst_rect.w = (float) texture_width/2;
+    dst_rect.h = (float) texture_height/2;
+    SDL_RenderTexture(renderer, texture, NULL, &dst_rect);
+
+
+    dst_rect.x = ((float) (WINDOW_WIDTH - texture_width)) - (100.0f * scale);
+    dst_rect.y = (float) (WINDOW_HEIGHT - texture_height);
+    dst_rect.w = (float) texture_width;
+    dst_rect.h = (float) texture_height;
+*/

src/neko.c

@@ -0,0 +1,64 @@
+#include "neko.h"
+#include "common.h"
+
+static SDL_Texture *texture = NULL;
+static int texture_width = 0;
+static int texture_height = 0;
+
+static float catx = 200;
+static float caty = 200;
+
+int neko_init(SDL_Renderer *renderer){
+    SDL_Surface *surface = NULL;
+    char *neko_bmp_path = NULL;
+    
+    /* Textures are pixel data that we upload to the video hardware for fast drawing. Lots of 2D
+       engines refer to these as "sprites." We'll do a static texture (upload once, draw many
+       times) with data from a bitmap file. */
+
+    /* SDL_Surface is pixel data the CPU can access. SDL_Texture is pixel data the GPU can access.
+       Load a .bmp into a surface, move it to a texture from there. */
+    SDL_asprintf(&neko_bmp_path, "%ssample.bmp", SDL_GetBasePath());  /* allocate a string of the full file path */
+    surface = SDL_LoadBMP(neko_bmp_path);
+    if (!surface) {
+        SDL_Log("Couldn't load bitmap: %s", SDL_GetError());
+        return SDL_APP_FAILURE;
+    }
+
+    SDL_free(neko_bmp_path);  /* done with this, the file is loaded. */
+
+    texture_width = surface->w;
+    texture_height = surface->h;
+
+    texture = SDL_CreateTextureFromSurface(renderer, surface);
+    if (!texture) {
+        SDL_Log("Couldn't create static texture: %s", SDL_GetError());
+        return SDL_APP_FAILURE;
+    }
+
+    SDL_DestroySurface(surface);  /* done with this, the texture has a copy of the pixels now. */
+
+}
+
+void neko_render(SDL_Renderer *renderer, SDL_Window *window){
+    float mousex, mousey;
+    int windowx, windowy;
+    float diffx, diffy;
+    SDL_FRect dst_rect;
+
+    SDL_GetGlobalMouseState(&mousex, &mousey);
+    SDL_GetWindowPosition(window, &windowx, &windowy);
+    diffx = catx-(mousex-(float)windowx);
+    diffy = caty-(mousey-(float)windowy);
+    SDL_Log("(%f, %f)", diffx, diffy);
+
+    dst_rect.x = catx+(diffx/diffy);
+    dst_rect.y = caty+(diffy/diffx);
+    dst_rect.h = WINDOW_HEIGHT/10;
+    dst_rect.w = WINDOW_HEIGHT/10;
+    SDL_RenderTexture(renderer, texture, NULL, &dst_rect);
+}
+
+void neko_quit(){
+    SDL_DestroyTexture(texture);
+}

src/neko.h

@@ -0,0 +1,14 @@
+#ifndef NEKO_H
+#define NEKO_H
+
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+#include <SDL3_image/SDL_image.h>
+
+#include <stdio.h>
+
+int neko_init(SDL_Renderer *renderer);
+void neko_render(SDL_Renderer *renderer, SDL_Window *window);
+void neko_quit();
+
+#endif