[np2kai] screen x2 patch for sdl2 version git:da21965

sdlnp21kai.diff

diff --git a/sdl/scrnmng.c b/sdl/scrnmng.c
index 1d59b5b..ac8ff22 100755
--- a/sdl/scrnmng.c
+++ b/sdl/scrnmng.c
@@ -75,6 +75,8 @@ static BRESULT calcdrawrect(DRAWRECT *dr, const RECT_T *rt) {
        return(SUCCESS);
 }
 
+int screen_scale = 2;
+
 void scrnmng_initialize(void) {
        scrnmng.width = 640;
        scrnmng.height = 400;
@@ -111,9 +113,9 @@ BRESULT scrnmng_create(UINT8 mode) {
        scrnmng.pc98surf = SDL_CreateRGBSurface(SDL_SWSURFACE, scrnmng.width, scrnmng.height, scrnmng.bpp, 0xf800, 0x07e0, 0x001f, 0);
 #else
        if(mode & SCRNMODE_ROTATEMASK) {
-               s_window = SDL_CreateWindow(app_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, scrnmng.height, scrnmng.width, 0);
+               s_window = SDL_CreateWindow(app_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, scrnmng.height * screen_scale, scrnmng.width * screen_scale, 0);
        } else {
-               s_window = SDL_CreateWindow(app_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, scrnmng.width, scrnmng.height, 0);
+               s_window = SDL_CreateWindow(app_name, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, scrnmng.width * screen_scale, scrnmng.height * screen_scale, 0);
        }
        s_renderer = SDL_CreateRenderer(s_window, -1, 0);
 #endif