feat: use socket instead of hyprctl

src/wallpaper.c

@@ -1,9 +1,72 @@
 #include <raylib.h>
 #include <rlgl.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+#include <string.h>
 
 #define WIDTH 1920
 #define HEIGHT 1080
 
+char *hyprland_socket_path;
+
+Vector2 hyprland_get_cursor_position()
+{
+    Vector2 pos = {0};
+
+    int sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (sock_fd == -1)
+    {
+        perror("socket");
+        return pos;
+    }
+
+    struct sockaddr_un addr = {0};
+    addr.sun_family = AF_UNIX;
+    strncpy(addr.sun_path, hyprland_socket_path, sizeof(addr.sun_path) - 1);
+
+    if (connect(sock_fd, (struct sockaddr *)&addr, sizeof(addr)) == -1)
+    {
+        printf("Using hyprland socket: %s\n", hyprland_socket_path);
+        perror("connect");
+        close(sock_fd);
+        return pos;
+    }
+
+    const char *message = "/cursorpos";
+    if (send(sock_fd, message, strlen(message), 0) == -1)
+    {
+        perror("send");
+        close(sock_fd);
+        return pos;
+    }
+
+    char buffer[256] = {0};
+    ssize_t bytes_received = recv(sock_fd, buffer, sizeof(buffer) - 1, 0);
+    if (bytes_received == -1)
+    {
+        perror("recv");
+        close(sock_fd);
+        return pos;
+    }
+
+    // format is x, y so parse here
+    buffer[bytes_received] = '\0';
+
+    if (sscanf(buffer, "%f, %f", &pos.x, &pos.y) != 2)
+    {
+        fprintf(stderr, "Failed to parse cursor position\n");
+    }
+
+    close(sock_fd);
+    return pos;
+}
+
 Texture2D load_texture_from_file(const char *file_path)
 {
     Texture2D texture = LoadTexture(file_path);
@@ -16,10 +79,13 @@ Texture2D load_texture_from_file(const char *file_path)
 
 int main(void)
 {
-    InitWindow(WIDTH, HEIGHT, "wallpaper");
+    InitWindow(WIDTH, HEIGHT, "pihkaal-wallpaper");
     SetWindowState(FLAG_WINDOW_RESIZABLE);
     SetTargetFPS(60);
 
+    // initialize hyprland socket path
+    hyprland_socket_path = strdup(TextFormat("%s/hypr/%s/.socket.sock", getenv("XDG_RUNTIME_DIR"), getenv("HYPRLAND_INSTANCE_SIGNATURE")));
+
     // initialize textures
     Texture2D distanceFieldTex = load_texture_from_file("resources/textures/background_distance_field.png");
     Texture2D backgroundTex = load_texture_from_file("resources/textures/background_transparent.png");
@@ -60,8 +126,8 @@ int main(void)
             SetShaderValue(shader, resolutionLoc, &resolution, SHADER_UNIFORM_VEC2);
         }
 
-        Vector2 mousePos = GetMousePosition();
-        mousePos.y = screenHeight - mousePos.y;
+        Vector2 hyprCursor = hyprland_get_cursor_position();
+        Vector2 mousePos = {hyprCursor.x, (float)screenHeight - hyprCursor.y};
         SetShaderValue(shader, mousePosLoc, &mousePos, SHADER_UNIFORM_VEC2);
 
         BeginDrawing();
@@ -87,5 +153,7 @@ int main(void)
     UnloadShader(shader);
     CloseWindow();
 
+    free(hyprland_socket_path);
+
     return 0;
 }