From 57e6de978b382a7be29f34f3f5708fadfd56ca84 Mon Sep 17 00:00:00 2001
From: Francesco Abbate <francesco.bbt@gmail.com>
Date: Fri, 23 Apr 2021 07:09:50 -0700
Subject: [PATCH] Fix error with missing ren_resize call

---
 src/api/system.c | 10 ++++++----
 src/renderer.c   |  8 ++++----
 src/renderer.h   |  2 +-
 3 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/src/api/system.c b/src/api/system.c
index be5fdea5..826ad5c1 100644
--- a/src/api/system.c
+++ b/src/api/system.c
@@ -109,11 +109,12 @@ top:
 
     case SDL_WINDOWEVENT:
       if (e.window.event == SDL_WINDOWEVENT_RESIZED) {
-        int w = e.window.data1, h = e.window.data2;
-        ren_resize(w, h);
+        ren_resize();
         lua_pushstring(L, "resized");
-        lua_pushnumber(L, w);
-        lua_pushnumber(L, h);
+        /* The size below can be wrong on Retina display by a multiplicative factor
+           but the size reported below is not currently used. */
+        lua_pushnumber(L, e.window.data1);
+        lua_pushnumber(L, e.window.data2);
         return 3;
       } else if (e.window.event == SDL_WINDOWEVENT_EXPOSED) {
         rencache_invalidate();
@@ -318,6 +319,7 @@ static int f_set_window_size(lua_State *L) {
   double y = luaL_checknumber(L, 4);
   SDL_SetWindowSize(window, w, h);
   SDL_SetWindowPosition(window, x, y);
+  ren_resize();
   return 0;
 }
 
diff --git a/src/renderer.c b/src/renderer.c
index 145e3f47..b48bf3d2 100644
--- a/src/renderer.c
+++ b/src/renderer.c
@@ -138,7 +138,7 @@ void ren_init(SDL_Window *win) {
 }
 
 
-void ren_resize(int w, int h) {
+void ren_resize() {
   int new_w, new_h;
   SDL_GL_GetDrawableSize(window, &new_w, &new_h);
   /* Note that (w, h) may differ from (new_w, new_h) on retina displays. */
@@ -175,7 +175,7 @@ void ren_set_clip_rect(RenRect rect) {
 
 
 void ren_get_size(int *x, int *y) {
-  SDL_Surface *surf = get_window_surface(window);
+  SDL_Surface *surf = get_window_surface();
   *x = surf->w;
   *y = surf->h;
 }
@@ -334,7 +334,7 @@ void ren_draw_rect(RenRect rect, RenColor color) {
   x2 = x2 > clip.right  ? clip.right  : x2;
   y2 = y2 > clip.bottom ? clip.bottom : y2;
 
-  SDL_Surface *surf = get_window_surface(window);
+  SDL_Surface *surf = get_window_surface();
   RenColor *d = (RenColor*) surf->pixels;
   d += x1 + y1 * surf->w;
   int dr = surf->w - (x2 - x1);
@@ -364,7 +364,7 @@ void ren_draw_text_subpixel(RenFont *font, const char *text, int x_subpixel, int
 {
   const char *p = text;
   unsigned codepoint;
-  SDL_Surface *surf = get_window_surface(window);
+  SDL_Surface *surf = get_window_surface();
   const FR_Color color_fr = { .r = color.r, .g = color.g, .b = color.b };
   while (*p) {
     FR_Color color_rep;
diff --git a/src/renderer.h b/src/renderer.h
index 1ab82206..f11d8e64 100644
--- a/src/renderer.h
+++ b/src/renderer.h
@@ -36,7 +36,7 @@ typedef struct CPReplaceTable CPReplaceTable;
 
 
 void ren_init(SDL_Window *win);
-void ren_resize(int w, int h);
+void ren_resize();
 void ren_update_rects(RenRect *rects, int count);
 void ren_set_clip_rect(RenRect rect);
 void ren_get_size(int *x, int *y);