diff --git a/src/SDLmzx.h b/src/SDLmzx.h
index 5b63d6277..5b12d96e9 100644
--- a/src/SDLmzx.h
+++ b/src/SDLmzx.h
@@ -349,16 +349,14 @@ typedef struct { float x; float y; float w; float h; } SDL_FRect;
 
 #if SDL_VERSION_ATLEAST(3,0,0)
 typedef SDL_FRect SDL_Rect_mzx;
-static inline SDL_Rect_mzx sdl_render_rect(int x, int y,
- int w, int h, int full_w, int full_h)
+static inline SDL_Rect_mzx sdl_render_rect(int x, int y, int w, int h)
 {
   SDL_FRect tmp = { (float)x, (float)y, (float)w, (float)h };
   return tmp;
 }
 #elif SDL_VERSION_ATLEAST(2,0,0)
 typedef SDL_Rect SDL_Rect_mzx;
-static inline SDL_Rect_mzx sdl_render_rect(int x, int y,
- int w, int h, int full_w, int full_h)
+static inline SDL_Rect_mzx sdl_render_rect(int x, int y, int w, int h)
 {
   SDL_Rect tmp = { x, y, w, h };
   return tmp;
@@ -374,29 +372,24 @@ typedef int SDL_RendererLogicalPresentation;
 #define SDL_SCALEMODE_BEST                SDL_ScaleModeBest
 #define SDL_SCALEMODE_LINEAR              SDL_ScaleModeLinear
 #define SDL_SCALEMODE_NEAREST             SDL_ScaleModeNearest
-#define SDL_SetRenderClipRect(r, rect)    SDL_RenderSetClipRect(r, rect)
-#define SDL_SetRenderLogicalSize(r, w, h) SDL_RenderSetLogicalSize(r, w, h)
+#define SDL_SetRenderClipRect(r, rect)    (SDL_RenderSetClipRect((r), (rect)) == 0)
 
 #if !SDL_VERSION_ATLEAST(2,0,12)
 typedef int SDL_ScaleMode;
 #endif
 
-static inline int SDL_SetRenderLogicalPresentation(SDL_Renderer *render,
+static inline SDL_bool SDL_SetRenderLogicalPresentation(SDL_Renderer *render,
  int w, int h, SDL_RendererLogicalPresentation p, SDL_ScaleMode s)
 {
-  return SDL_SetRenderLogicalSize(render, w, h);
+  // Return value 0/-1 -> true/false
+  return (SDL_bool)(SDL_RenderSetLogicalSize(render, w, h) == 0);
 }
-#endif
 
-#if SDL_VERSION_ATLEAST(2,0,0)
-static inline int SDL_RenderTexture_mzx(SDL_Renderer *renderer, SDL_Texture *texture,
- const SDL_Rect_mzx *src_rect, const SDL_Rect_mzx *dest_rect)
+static inline SDL_bool SDL_RenderTexture(SDL_Renderer *renderer,
+ SDL_Texture *texture, const SDL_Rect_mzx *src_rect, const SDL_Rect_mzx *dest_rect)
 {
-#if SDL_VERSION_ATLEAST(3,0,0)
-  return SDL_RenderTexture(renderer, texture, src_rect, dest_rect);
-#else
-  return SDL_RenderCopy(renderer, texture, src_rect, dest_rect);
-#endif
+  // Return value 0/-1 -> true/false
+  return (SDL_bool)(SDL_RenderCopy(renderer, texture, src_rect, dest_rect) == 0);
 }
 #endif
 
@@ -407,7 +400,12 @@ static inline int SDL_RenderTexture_mzx(SDL_Renderer *renderer, SDL_Texture *tex
 #define SDL_SCALEMODE_NEAREST       SDL_ScaleModeNearest
 #define SDL_SCALEMODE_LINEAR        SDL_ScaleModeLinear
 #define SDL_DestroySurface(s)       SDL_FreeSurface(s)
-#define SDL_FillSurfaceRect(s,r,c)  SDL_FillRect(s,r,c)
+
+static inline SDL_bool SDL_FillSurfaceRect(SDL_Surface *surface, SDL_Rect *rect,
+ Uint32 color)
+{
+  return (SDL_bool)(SDL_FillRect(surface, rect, color) == 0);
+}
 
 static inline SDL_bool SDL_GetSurfaceClipRect(SDL_Surface *surface, SDL_Rect *rect)
 {
diff --git a/src/event_sdl.c b/src/event_sdl.c
index a41e287c4..101e84048 100644
--- a/src/event_sdl.c
+++ b/src/event_sdl.c
@@ -1800,9 +1800,9 @@ void platform_init_event(void)
 #endif
 
 #if SDL_VERSION_ATLEAST(2,0,0)
-  SDL_SetGamepadEventsEnabled(true);
+  SDL_SetGamepadEventsEnabled(1);
   load_gamecontrollerdb();
 #endif
 
-  SDL_SetJoystickEventsEnabled(true);
+  SDL_SetJoystickEventsEnabled(1);
 }
diff --git a/src/graphics.c b/src/graphics.c
index df4ef458e..bb4cea2cb 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -1488,22 +1488,12 @@ static boolean icon_w_h_constraint(png_uint_32 w, png_uint_32 h)
   return (w == h) && ((w % 16) == 0) && ((h % 16) == 0);
 }
 
-#if SDL_VERSION_ATLEAST(2,0,0)
 static void *sdl_alloc_rgba_surface(png_uint_32 w, png_uint_32 h,
  png_uint_32 *stride, void **pixels)
 {
+#if SDL_VERSION_ATLEAST(2,0,0)
   SDL_Surface *s = SDL_CreateSurface(w, h, SDL_PIXELFORMAT_RGBA32);
-  if(!s)
-    return NULL;
-
-  *stride = s->pitch;
-  *pixels = s->pixels;
-  return s;
-}
 #else
-static void *sdl_alloc_rgba_surface(png_uint_32 w, png_uint_32 h,
- png_uint_32 *stride, void **pixels)
-{
   Uint32 rmask, gmask, bmask, amask;
   SDL_Surface *s;
 
@@ -1520,6 +1510,7 @@ static void *sdl_alloc_rgba_surface(png_uint_32 w, png_uint_32 h,
 #endif
 
   s = SDL_CreateRGBSurface(SDL_SWSURFACE, w, h, 32, rmask, gmask, bmask, amask);
+#endif
   if(!s)
     return NULL;
 
@@ -1527,7 +1518,6 @@ static void *sdl_alloc_rgba_surface(png_uint_32 w, png_uint_32 h,
   *pixels = s->pixels;
   return s;
 }
-#endif
 
 static SDL_Surface *png_read_icon(const char *name)
 {
diff --git a/src/render_sdl.c b/src/render_sdl.c
index 13f442f67..326fe4783 100644
--- a/src/render_sdl.c
+++ b/src/render_sdl.c
@@ -913,7 +913,6 @@ static void find_texture_format(struct graphics_data *graphics,
   if(!strcmp(renderer_name, SDL_SOFTWARE_RENDERER))
     is_software_renderer = true;
 
-  // thanks for the michael mouse API
   formats = (const uint32_t *)SDL_GetPointerProperty(props,
    SDL_PROP_RENDERER_TEXTURE_FORMATS_POINTER, NULL);
   num_formats = 0;
@@ -1168,12 +1167,7 @@ void sdl_set_texture_scale_mode(struct graphics_data *graphics,
     else
       mode = SDL_SCALEMODE_LINEAR;
 
-#if SDL_VERSION_ATLEAST(3,0,0)
-    if(!SDL_SetTextureScaleMode(render_data->texture[texture_id], mode))
-#else
-    if(SDL_SetTextureScaleMode(render_data->texture[texture_id], mode) < 0)
-#endif
-      warn("Failed to set texture %d scale mode: %s\n", texture_id, SDL_GetError());
+    SDL_SetTextureScaleMode(render_data->texture[texture_id], mode);
   }
   else
     warn("Texture %d is null!\n", texture_id);
diff --git a/src/render_sdlaccel.c b/src/render_sdlaccel.c
index 519e95763..c402a4310 100644
--- a/src/render_sdlaccel.c
+++ b/src/render_sdlaccel.c
@@ -568,9 +568,8 @@ static void sdlaccel_render_layer(struct graphics_data *graphics,
   SDL_Texture *chars_tex = render_data->sdl.texture[TEX_CHARS];
   SDL_Texture *bg_tex = render_data->sdl.texture[TEX_BACKGROUND];
 
-  SDL_Rect_mzx dest_bg =
-   sdl_render_rect(offx, offy, w * CHAR_W, h * CHAR_H, TEX_SCREEN_W, TEX_SCREEN_H);
-  SDL_Rect_mzx src_bg = sdl_render_rect(0, 0, w, h, TEX_BG_W, TEX_BG_H);
+  SDL_Rect_mzx dest_bg = sdl_render_rect(offx, offy, w * CHAR_W, h * CHAR_H);
+  SDL_Rect_mzx src_bg = sdl_render_rect(0, 0, w, h);
 
   void *_bg;
   int bg_pitch;
@@ -656,7 +655,7 @@ static void sdlaccel_render_layer(struct graphics_data *graphics,
       }
     }
     SDL_UnlockTexture(bg_tex);
-    SDL_RenderTexture_mzx(renderer, bg_tex, &src_bg, &dest_bg);
+    SDL_RenderTexture(renderer, bg_tex, &src_bg, &dest_bg);
 
 #ifdef RENDER_GEOMETRY
 
@@ -714,11 +713,8 @@ static void sdlaccel_render_cursor(struct graphics_data *graphics, unsigned x,
   uint8_t *palette = render_data->palette;
 
   // Input coordinates are on the character grid.
-#if SDL_VERSION_ATLEAST(3,0,0)
-  SDL_FRect dest = { x * CHAR_W, y * CHAR_H + offset, CHAR_W, lines };
-#else
-  SDL_Rect dest = { x * CHAR_W, y * CHAR_H + offset, CHAR_W, lines };
-#endif
+  SDL_Rect_mzx dest =
+   sdl_render_rect(x * CHAR_W, y * CHAR_H + offset, CHAR_W, lines);
 
   SDL_SetRenderDrawBlendMode(render_data->sdl.renderer, SDL_BLENDMODE_NONE);
   SDL_SetRenderDrawColor(render_data->sdl.renderer,
@@ -734,11 +730,7 @@ static void sdlaccel_render_mouse(struct graphics_data *graphics, unsigned x,
   struct sdlaccel_render_data *render_data = graphics->render_data;
 
   // Input coordinates are pixel values.
-#if SDL_VERSION_ATLEAST(3,0,0)
-  SDL_FRect dest = { x, y, w, h };
-#else
-  SDL_Rect dest = { x, y, w, h };
-#endif
+  SDL_Rect_mzx dest = sdl_render_rect(x, y, w, h);
 
   /* There is no preset inversion blend mode, so make a custom blend mode.
    * Lower SDL versions should simply fall back to drawing a white rectangle.
@@ -769,8 +761,7 @@ static void sdlaccel_sync_screen(struct graphics_data *graphics,
   SDL_Rect_mzx src;
   SDL_Rect_mzx dest;
 
-  src = sdl_render_rect(0, 0, SCREEN_PIX_W, SCREEN_PIX_H,
-   TEX_SCREEN_W, TEX_SCREEN_H);
+  src = sdl_render_rect(0, 0, SCREEN_PIX_W, SCREEN_PIX_H);
 
   dest.x = window->viewport_x;
   dest.y = window->viewport_y;
@@ -778,7 +769,7 @@ static void sdlaccel_sync_screen(struct graphics_data *graphics,
   dest.h = window->viewport_height;
 
   SDL_SetRenderTarget(renderer, NULL);
-  SDL_RenderTexture_mzx(renderer, screen_tex, &src, &dest);
+  SDL_RenderTexture(renderer, screen_tex, &src, &dest);
 
   SDL_RenderPresent(renderer);
 
diff --git a/src/render_softscale.c b/src/render_softscale.c
index bb0ee9466..59bbada12 100644
--- a/src/render_softscale.c
+++ b/src/render_softscale.c
@@ -270,7 +270,7 @@ static void softscale_sync_screen(struct graphics_data *graphics,
   SDL_Rect_mzx dest_rect;
 
   src_rect = sdl_render_rect(texture_rect->x, texture_rect->y,
-   texture_rect->w, texture_rect->h, render_data->texture_width, SCREEN_PIX_H);
+   texture_rect->w, texture_rect->h);
 
   dest_rect.x = window->viewport_x;
   dest_rect.y = window->viewport_y;
@@ -282,7 +282,7 @@ static void softscale_sync_screen(struct graphics_data *graphics,
   SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE);
   SDL_RenderClear(renderer);
 
-  SDL_RenderTexture_mzx(renderer, texture, &src_rect, &dest_rect);
+  SDL_RenderTexture(renderer, texture, &src_rect, &dest_rect);
   SDL_RenderPresent(renderer);
 }
 
diff --git a/unit/configure.cpp b/unit/configure.cpp
index 74c5594c0..ba259eda7 100644
--- a/unit/configure.cpp
+++ b/unit/configure.cpp
@@ -32,7 +32,7 @@
 
 #ifdef CONFIG_SDL
 #include "../src/SDLmzx.h"
-#undef IGNORE /* wtf Windows? */
+#undef IGNORE /* Windows defines this for some reason... */
 #endif
 
 #ifdef CONFIG_EDITOR