diff --git a/src/emulator.c b/src/emulator.c
index 49f8f069..2248eac3 100644
--- a/src/emulator.c
+++ b/src/emulator.c
@@ -211,6 +211,9 @@ static void emu_close(void *data) {
 }
 
 static void emu_paint(struct emu *emu) {
+  float w = (float)win_width(emu->win);
+  float h = (float)win_height(emu->win);
+
   prof_counter_add(COUNTER_frames, 1);
 
   r_clear_viewport(emu->r);
@@ -221,9 +224,6 @@ static void emu_paint(struct emu *emu) {
   struct frame *frame = emu_pop_frame(emu);
 
   if (frame) {
-    float w = (float)emu->win->width;
-    float h = (float)emu->win->height;
-
     struct vertex2 verts[6] = {
         /* triangle 1, top left  */
         {{0.0f, 0.0f}, {0.0f, 1.0f}, 0xffffffff},
@@ -264,8 +264,7 @@ static void emu_paint(struct emu *emu) {
   /* render debug menus */
   if (emu->debug_menu) {
     struct nk_context *ctx = &emu->nk->ctx;
-    struct nk_rect bounds = {0.0f, 0.0f, (float)emu->win->width,
-                             DEBUG_MENU_HEIGHT};
+    struct nk_rect bounds = {0.0f, 0.0f, w, DEBUG_MENU_HEIGHT};
 
     nk_style_default(ctx);
 
@@ -275,9 +274,10 @@ static void emu_paint(struct emu *emu) {
     ctx->style.window.padding = nk_vec2(0.0f, 0.0f);
 
     if (nk_begin(ctx, "debug menu", bounds, NK_WINDOW_NO_SCROLLBAR)) {
+      static int max_debug_menus = 32;
+
       nk_menubar_begin(ctx);
-      nk_layout_row_begin(ctx, NK_STATIC, DEBUG_MENU_HEIGHT,
-                          MAX_WINDOW_LISTENERS + 2);
+      nk_layout_row_begin(ctx, NK_STATIC, DEBUG_MENU_HEIGHT, max_debug_menus);
 
       /* add our own debug menu */
       nk_layout_row_push(ctx, 30.0f);
@@ -285,7 +285,7 @@ static void emu_paint(struct emu *emu) {
                               nk_vec2(140.0f, 200.0f))) {
         nk_layout_row_dynamic(ctx, DEBUG_MENU_HEIGHT, 1);
 
-        int fullscreen = emu->win->fullscreen;
+        int fullscreen = win_fullscreen(emu->win);
         if (nk_checkbox_label(ctx, "fullscreen", &fullscreen)) {
           win_set_fullscreen(emu->win, fullscreen);
         }
@@ -310,8 +310,7 @@ static void emu_paint(struct emu *emu) {
       snprintf(status, sizeof(status), "FPS %3d RPS %3d VBS %3d SH4 %4d ARM %d",
                frames, ta_renders, pvr_vblanks, sh4_instrs, arm7_instrs);
 
-      nk_layout_row_push(
-          ctx, (float)emu->win->width - ctx->current->layout->row.item_offset);
+      nk_layout_row_push(ctx, w - ctx->current->layout->row.item_offset);
       nk_label(ctx, status, NK_TEXT_RIGHT);
 
       nk_layout_row_end(ctx);
diff --git a/src/tracer.c b/src/tracer.c
index f82fc1db..4c8f5d32 100644
--- a/src/tracer.c
+++ b/src/tracer.c
@@ -286,6 +286,8 @@ static const float SCRUBBER_WINDOW_HEIGHT = 20.0f;
 
 static void tracer_render_scrubber_menu(struct tracer *tracer) {
   struct nk_context *ctx = &tracer->nk->ctx;
+  float width = (float)win_width(tracer->win);
+  float height = (float)win_height(tracer->win);
 
   nk_style_default(ctx);
 
@@ -293,9 +295,8 @@ static void tracer_render_scrubber_menu(struct tracer *tracer) {
   ctx->style.window.padding = nk_vec2(0.0f, 0.0f);
   ctx->style.window.spacing = nk_vec2(0.0f, 0.0f);
 
-  struct nk_rect bounds = {0.0f,
-                           (float)tracer->win->height - SCRUBBER_WINDOW_HEIGHT,
-                           (float)tracer->win->width, SCRUBBER_WINDOW_HEIGHT};
+  struct nk_rect bounds = {0.0f, height - SCRUBBER_WINDOW_HEIGHT, width,
+                           SCRUBBER_WINDOW_HEIGHT};
   nk_flags flags = NK_WINDOW_NO_SCROLLBAR;
 
   if (nk_begin(ctx, "context scrubber", bounds, flags)) {
@@ -571,12 +572,14 @@ static void tracer_param_tooltip(struct tracer *tracer,
 
 static void tracer_render_side_menu(struct tracer *tracer) {
   struct nk_context *ctx = &tracer->nk->ctx;
+  float width = (float)win_width(tracer->win);
+  float height = (float)win_height(tracer->win);
 
   /* transparent menu backgrounds / selectables */
 
   {
     struct nk_rect bounds = {0.0f, 0.0, 240.0f,
-                             tracer->win->height - SCRUBBER_WINDOW_HEIGHT};
+                             height - SCRUBBER_WINDOW_HEIGHT};
 
     nk_style_default(ctx);
 
@@ -657,8 +660,8 @@ static void tracer_render_side_menu(struct tracer *tracer) {
   }
 
   {
-    struct nk_rect bounds = {tracer->win->width - 240.0f, 0.0, 240.0f,
-                             tracer->win->height - SCRUBBER_WINDOW_HEIGHT};
+    struct nk_rect bounds = {width - 240.0f, 0.0, 240.0f,
+                             height - SCRUBBER_WINDOW_HEIGHT};
 
     nk_style_default(ctx);
 
diff --git a/src/ui/microprofile.cc b/src/ui/microprofile.cc
index cfce6941..3af29d82 100644
--- a/src/ui/microprofile.cc
+++ b/src/ui/microprofile.cc
@@ -25,7 +25,7 @@ static const int MAX_2D_VERTICES = 32768;
 static const int MAX_2D_SURFACES = 256;
 
 struct microprofile {
-  struct window *window;
+  struct window *win;
   struct render_backend *r;
   struct window_listener listener;
   texture_handle_t font_texture;
@@ -236,8 +236,11 @@ static void mp_draw_line(struct microprofile *mp, float *verts, int num_verts,
 void mp_render(struct microprofile *mp) {
   s_mp = mp;
 
+  int width = win_width(mp->win);
+  int height = win_height(mp->win);
+
   /* update draw surfaces */
-  MicroProfileDraw(mp->window->width, mp->window->height);
+  MicroProfileDraw(width, height);
 
   /* render the surfaces */
   r_begin_ortho(mp->r);
@@ -259,22 +262,21 @@ void mp_render(struct microprofile *mp) {
 void mp_destroy(struct microprofile *mp) {
   r_destroy_texture(mp->r, mp->font_texture);
 
-  win_remove_listener(mp->window, &mp->listener);
+  win_remove_listener(mp->win, &mp->listener);
 
   free(mp);
 }
 
-struct microprofile *mp_create(struct window *window,
-                               struct render_backend *r) {
+struct microprofile *mp_create(struct window *win, struct render_backend *r) {
   struct microprofile *mp = reinterpret_cast<struct microprofile *>(
       calloc(1, sizeof(struct microprofile)));
 
-  mp->window = window;
+  mp->win = win;
   mp->r = r;
 
   /* add input event listeners */
   mp->listener = {mp, NULL, NULL, &mp_keydown, &mp_mousemove, NULL, {}};
-  win_add_listener(mp->window, &mp->listener);
+  win_add_listener(mp->win, &mp->listener);
 
   /* register and enable cpu and gpu groups by default */
   uint16_t cpu_group = MicroProfileGetGroup("cpu", MicroProfileTokenTypeCpu);
diff --git a/src/ui/microprofile.h b/src/ui/microprofile.h
index d069dea4..ae09bc7e 100644
--- a/src/ui/microprofile.h
+++ b/src/ui/microprofile.h
@@ -5,7 +5,7 @@ struct microprofile;
 struct render_backend;
 struct window;
 
-struct microprofile *mp_create(struct window *window, struct render_backend *r);
+struct microprofile *mp_create(struct window *win, struct render_backend *r);
 void mp_destroy(struct microprofile *mp);
 
 void mp_render(struct microprofile *mp);
diff --git a/src/ui/nuklear.c b/src/ui/nuklear.c
index 74c5eadc..e25bf598 100644
--- a/src/ui/nuklear.c
+++ b/src/ui/nuklear.c
@@ -51,6 +51,8 @@ static void nk_mousemove(void *data, int x, int y) {
 }
 
 void nk_render(struct nuklear *nk) {
+  float height = (float)win_height(nk->win);
+
   /* convert draw list into vertex / element buffers */
   static const struct nk_draw_vertex_layout_element vertex_layout[] = {
       {NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct vertex2, xy)},
@@ -95,8 +97,7 @@ void nk_render(struct nuklear *nk) {
 
     surf.texture = (texture_handle_t)cmd->texture.id;
     surf.scissor_rect[0] = cmd->clip_rect.x;
-    surf.scissor_rect[1] =
-        nk->window->height - (cmd->clip_rect.y + cmd->clip_rect.h);
+    surf.scissor_rect[1] = height - (cmd->clip_rect.y + cmd->clip_rect.h);
     surf.scissor_rect[2] = cmd->clip_rect.w;
     surf.scissor_rect[3] = cmd->clip_rect.h;
     surf.first_vert = offset;
@@ -138,21 +139,21 @@ void nk_destroy(struct nuklear *nk) {
 
   r_destroy_texture(nk->r, nk->font_texture);
 
-  win_remove_listener(nk->window, &nk->listener);
+  win_remove_listener(nk->win, &nk->listener);
 
   free(nk);
 }
 
-struct nuklear *nk_create(struct window *window, struct render_backend *r) {
+struct nuklear *nk_create(struct window *win, struct render_backend *r) {
   struct nuklear *nk = calloc(1, sizeof(struct nuklear));
 
-  nk->window = window;
+  nk->win = win;
   nk->r = r;
 
   /* add input event listeners */
   nk->listener = (struct window_listener){
       nk, NULL, NULL, &nk_keydown, &nk_mousemove, NULL, {0}};
-  win_add_listener(nk->window, &nk->listener);
+  win_add_listener(nk->win, &nk->listener);
 
   /* create default font texture */
   nk_font_atlas_init_default(&nk->atlas);
diff --git a/src/ui/nuklear.h b/src/ui/nuklear.h
index 766530bf..9b6c0cfb 100644
--- a/src/ui/nuklear.h
+++ b/src/ui/nuklear.h
@@ -19,7 +19,7 @@
 struct render_backend;
 
 struct nuklear {
-  struct window *window;
+  struct window *win;
   struct render_backend *r;
   struct window_listener listener;
 
@@ -42,7 +42,7 @@ struct nuklear {
   int shift[2];
 };
 
-struct nuklear *nk_create(struct window *window, struct render_backend *r);
+struct nuklear *nk_create(struct window *win, struct render_backend *r);
 void nk_destroy(struct nuklear *nk);
 
 void nk_update_input(struct nuklear *nk);
diff --git a/src/ui/window.c b/src/ui/window.c
index 12e40455..297bd783 100644
--- a/src/ui/window.c
+++ b/src/ui/window.c
@@ -9,9 +9,29 @@
 #define DEFAULT_WIDTH 640
 #define DEFAULT_HEIGHT 480
 
+#define MAX_WINDOW_LISTENERS 8
+#define MAX_JOYSTICKS 4
+
+#define NUM_JOYSTICK_AXES ((K_AXIS25 - K_AXIS0) + 1)
+#define NUM_JOYSTICK_KEYS ((K_JOY31 - K_JOY0) + 1)
+#define NUM_JOYSTICK_HATS (((K_HAT15 - K_HAT0) + 1) / 4) /* 4 keys per hat */
+
 #define KEY_UP INT16_MIN
 #define KEY_DOWN INT16_MAX
 
+struct window {
+  struct SDL_Window *handle;
+
+  int width;
+  int height;
+  int fullscreen;
+
+  struct list listeners;
+  char status[256];
+  struct _SDL_Joystick *joysticks[MAX_JOYSTICKS];
+  uint8_t hat_state[MAX_JOYSTICKS][NUM_JOYSTICK_HATS];
+};
+
 static void win_destroy_joystick(struct window *win, SDL_Joystick *del) {
   for (int i = 0; i < MAX_JOYSTICKS; i++) {
     SDL_Joystick **joy = &win->joysticks[i];
@@ -813,6 +833,18 @@ void win_pump_events(struct window *win) {
   win_pump_sdl(win);
 }
 
+int win_width(struct window *win) {
+  return win->width;
+}
+
+int win_height(struct window *win) {
+  return win->height;
+}
+
+int win_fullscreen(struct window *win) {
+  return win->fullscreen;
+}
+
 void win_set_fullscreen(struct window *win, int fullscreen) {
   win->fullscreen = fullscreen;
 
diff --git a/src/ui/window.h b/src/ui/window.h
index 40204cbf..218ac5c0 100644
--- a/src/ui/window.h
+++ b/src/ui/window.h
@@ -5,27 +5,9 @@
 #include "core/list.h"
 #include "ui/keycode.h"
 
-struct imgui;
-struct microprofile;
-struct nuklear;
-struct nk_context;
-struct render_backend;
-struct window;
-struct window_listener;
-
-struct _SDL_Joystick;
-struct SDL_Window;
-
-#define MAX_WINDOW_LISTENERS 8
-
 #define DEBUG_MENU_HEIGHT 23.0f
 
-#define MAX_JOYSTICKS 4
-
-#define NUM_JOYSTICK_AXES ((K_AXIS25 - K_AXIS0) + 1)
-#define NUM_JOYSTICK_KEYS ((K_JOY31 - K_JOY0) + 1)
-#define NUM_JOYSTICK_HATS (((K_HAT15 - K_HAT0) + 1) / 4) /* 4 keys per hat */
-
+struct window;
 typedef void *glcontext_t;
 
 struct window_listener {
@@ -39,22 +21,6 @@ struct window_listener {
   struct list_node it;
 };
 
-struct window {
-  /* public */
-  struct SDL_Window *handle;
-
-  /* read only */
-  int width;
-  int height;
-  int fullscreen;
-
-  /* private state */
-  struct list listeners;
-  char status[256];
-  struct _SDL_Joystick *joysticks[MAX_JOYSTICKS];
-  uint8_t hat_state[MAX_JOYSTICKS][NUM_JOYSTICK_HATS];
-};
-
 struct window *win_create();
 void win_destroy(struct window *win);
 
@@ -67,6 +33,10 @@ void win_gl_destroy_context(struct window *win, glcontext_t ctx);
 void win_add_listener(struct window *win, struct window_listener *listener);
 void win_remove_listener(struct window *win, struct window_listener *listener);
 
+int win_width(struct window *win);
+int win_height(struct window *win);
+
+int win_fullscreen(struct window *win);
 void win_set_fullscreen(struct window *win, int fullscreen);
 
 void win_pump_events(struct window *win);
diff --git a/src/video/gl_backend.c b/src/video/gl_backend.c
index 31a4a3f5..997aed51 100644
--- a/src/video/gl_backend.c
+++ b/src/video/gl_backend.c
@@ -655,15 +655,17 @@ void r_end_ortho(struct render_backend *r) {
 }
 
 void r_begin_ortho(struct render_backend *r) {
-  float ortho[16];
+  int width = win_width(r->win);
+  int height = win_height(r->win);
 
-  ortho[0] = 2.0f / (float)r->win->width;
+  float ortho[16];
+  ortho[0] = 2.0f / (float)width;
   ortho[4] = 0.0f;
   ortho[8] = 0.0f;
   ortho[12] = -1.0f;
 
   ortho[1] = 0.0f;
-  ortho[5] = -2.0f / (float)r->win->height;
+  ortho[5] = -2.0f / (float)height;
   ortho[9] = 0.0f;
   ortho[13] = 1.0f;
 
@@ -691,9 +693,12 @@ void r_swap_buffers(struct render_backend *r) {
 }
 
 void r_clear_viewport(struct render_backend *r) {
+  int width = win_width(r->win);
+  int height = win_height(r->win);
+
   r_set_depth_mask(r, 1);
 
-  glViewport(0, 0, r->win->width, r->win->height);
+  glViewport(0, 0, width, height);
   glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 }
@@ -828,6 +833,9 @@ void r_bind_framebuffer(struct render_backend *r, framebuffer_handle_t handle) {
 
 framebuffer_handle_t r_create_framebuffer(struct render_backend *r,
                                           texture_handle_t *color_component) {
+  int width = win_width(r->win);
+  int height = win_height(r->win);
+
   /* find next open framebuffer handle */
   int entry;
   for (entry = 0; entry < MAX_FRAMEBUFFERS; entry++) {
@@ -843,8 +851,8 @@ framebuffer_handle_t r_create_framebuffer(struct render_backend *r,
   /* create color component */
   glGenTextures(1, &fb->color_component);
   glBindTexture(GL_TEXTURE_2D, fb->color_component);
-  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, r->win->width, r->win->height, 0,
-               GL_RGBA, GL_UNSIGNED_BYTE, 0);
+  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA,
+               GL_UNSIGNED_BYTE, 0);
   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
   glBindTexture(GL_TEXTURE_2D, 0);
@@ -852,8 +860,7 @@ framebuffer_handle_t r_create_framebuffer(struct render_backend *r,
   /* create depth component */
   glGenRenderbuffers(1, &fb->depth_component);
   glBindRenderbuffer(GL_RENDERBUFFER, fb->depth_component);
-  glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, r->win->width,
-                        r->win->height);
+  glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, width, height);
   glBindRenderbuffer(GL_RENDERBUFFER, 0);
 
   /* create fbo */