diff -r f061a86fbb08 src/render/software/SDL_render_sw.c
--- a/src/render/software/SDL_render_sw.c	Sun Jul 13 09:04:55 2014 -0700
+++ b/src/render/software/SDL_render_sw.c	Mon Jul 14 01:39:27 2014 +0300
@@ -578,6 +578,7 @@
     SDL_Surface *src = (SDL_Surface *) texture->driverdata;
     SDL_Rect final_rect, tmp_rect;
     SDL_Surface *surface_rotated, *surface_scaled;
+    SDL_BlendMode texblendmode;
     Uint32 colorkey;
     int retval, dstwidth, dstheight, abscenterx, abscentery;
     double cangle, sangle, px, py, p1x, p1y, p2x, p2y, p3x, p3y, p4x, p4y;
@@ -606,7 +607,13 @@
         tmp_rect.x = 0;
         tmp_rect.y = 0;
 
+        /* reset the texture blend mode for the duration of the scaled blit */
+        SDL_GetSurfaceBlendMode(src, &texblendmode);
+        SDL_SetSurfaceBlendMode(src, SDL_BLENDMODE_NONE);
         retval = SDL_BlitScaled(src, srcrect, surface_scaled, &tmp_rect);
+        /* restore it */
+        SDL_SetSurfaceBlendMode(src, texblendmode);
+
         if (!retval) {
             SDLgfx_rotozoomSurfaceSizeTrig(tmp_rect.w, tmp_rect.h, -angle, &dstwidth, &dstheight, &cangle, &sangle);
             surface_rotated = SDLgfx_rotateSurface(surface_scaled, -angle, dstwidth/2, dstheight/2, GetScaleQuality(), flip & SDL_FLIP_HORIZONTAL, flip & SDL_FLIP_VERTICAL, dstwidth, dstheight, cangle, sangle);
@@ -646,7 +653,13 @@
                 tmp_rect.w = dstwidth;
                 tmp_rect.h = dstheight;
 
-                retval = SDL_BlitSurface(surface_rotated, NULL, surface, &tmp_rect);
+                /* set the appropriate blend mode for the rotated blit */
+                SDL_SetSurfaceBlendMode(surface_rotated, texblendmode);
+                if (surface->w != surface_rotated->w || surface->h != surface_rotated->h) {
+                    retval = SDL_BlitScaled(surface_rotated, NULL, surface, &tmp_rect);
+                } else {
+                    retval = SDL_BlitSurface(surface_rotated, NULL, surface, &tmp_rect);
+                }
                 SDL_FreeSurface(surface_scaled);
                 SDL_FreeSurface(surface_rotated);
                 return retval;