Fix kcp transmission error

remote_desk_client/remote_desk_client.cpp

@@ -0,0 +1,105 @@
+
+
+#include <stdio.h>
+
+#include <chrono>
+#include <iostream>
+#include <thread>
+
+#include "x.h"
+
+#define SDL_MAIN_HANDLED
+#include "SDL2/SDL.h"
+
+int screen_w = 1280, screen_h = 720;
+const int pixel_w = 1280, pixel_h = 720;
+
+unsigned char dst_buffer[pixel_w * pixel_h * 3 / 2];
+SDL_Texture *sdlTexture = nullptr;
+SDL_Renderer *sdlRenderer = nullptr;
+SDL_Rect sdlRect;
+
+// Refresh Event
+#define REFRESH_EVENT (SDL_USEREVENT + 1)
+#define QUIT_EVENT (SDL_USEREVENT + 2)
+
+int thread_exit = 0;
+
+int refresh_video(void *opaque) {
+  SDL_Event event;
+  while (thread_exit == 0) {
+    event.type = REFRESH_EVENT;
+    SDL_PushEvent(&event);
+    SDL_Delay(10);
+  }
+
+  event.type = QUIT_EVENT;
+  SDL_PushEvent(&event);
+
+  return 0;
+}
+
+void GuestReceiveBuffer(const char *data, size_t size, const char *user_id,
+                        size_t user_id_size) {
+  std::cout << "Receive size: " << size << std::endl;
+  memcpy(dst_buffer, data, size);
+}
+
+int main() {
+  Params params;
+  params.cfg_path = "config.ini";
+  params.on_receive_buffer = GuestReceiveBuffer;
+
+  std::string transmission_id = "000000";
+  std::string user_id = "Client";
+
+  PeerPtr *peer = CreatePeer(&params);
+  JoinConnection(peer, transmission_id.c_str(), user_id.c_str());
+
+  if (SDL_Init(SDL_INIT_VIDEO)) {
+    printf("Could not initialize SDL - %s\n", SDL_GetError());
+    return -1;
+  }
+
+  SDL_Window *screen;
+  screen = SDL_CreateWindow("RTS Receiver", SDL_WINDOWPOS_UNDEFINED,
+                            SDL_WINDOWPOS_UNDEFINED, screen_w, screen_h,
+                            SDL_WINDOW_RESIZABLE);
+  if (!screen) {
+    printf("SDL: could not create window - exiting:%s\n", SDL_GetError());
+    return -1;
+  }
+  sdlRenderer = SDL_CreateRenderer(screen, -1, SDL_RENDERER_ACCELERATED);
+
+  Uint32 pixformat = 0;
+  pixformat = SDL_PIXELFORMAT_NV12;
+
+  sdlTexture = SDL_CreateTexture(sdlRenderer, pixformat,
+                                 SDL_TEXTUREACCESS_STREAMING, pixel_w, pixel_h);
+
+  SDL_Thread *refresh_thread = SDL_CreateThread(refresh_video, NULL, NULL);
+  SDL_Event event;
+  while (1) {
+    // Wait
+    SDL_WaitEvent(&event);
+    if (event.type == REFRESH_EVENT) {
+      sdlRect.x = 0;
+      sdlRect.y = 0;
+      sdlRect.w = screen_w;
+      sdlRect.h = screen_h;
+
+      SDL_UpdateTexture(sdlTexture, NULL, dst_buffer, pixel_w);
+      SDL_RenderClear(sdlRenderer);
+      SDL_RenderCopy(sdlRenderer, sdlTexture, NULL, &sdlRect);
+      SDL_RenderPresent(sdlRenderer);
+    } else if (event.type == SDL_WINDOWEVENT) {
+      // If Resize
+      SDL_GetWindowSize(screen, &screen_w, &screen_h);
+      printf("Resize windows: %dx%d\n", screen_w, screen_h);
+    } else if (event.type == SDL_QUIT) {
+      break;
+    }
+  }
+
+  return 0;
+}