diff options
| -rw-r--r-- | sdl.cpp | 13 |
1 files changed, 11 insertions, 2 deletions
@@ -77,7 +77,7 @@ private: DF_WANT_RECT_OPTIM = 2, DF_2xSAI = 4, DF_SEPARATE_HWSCREEN = 8, - + DF_UPDATE_EXPAND_1_PIXEL = 16, }; int _driver; @@ -247,7 +247,7 @@ void OSystem_SDL::load_gfx_mode() { if (_sai_func) { uint16 *tmp_screen = (uint16*)calloc(320*204 + 16,sizeof(uint16)); - _driver_flags = DF_FORCE_FULL_ON_PALETTE | DF_WANT_RECT_OPTIM | DF_2xSAI | DF_SEPARATE_HWSCREEN; + _driver_flags = DF_FORCE_FULL_ON_PALETTE | DF_WANT_RECT_OPTIM | DF_2xSAI | DF_SEPARATE_HWSCREEN | DF_UPDATE_EXPAND_1_PIXEL; Init_2xSaI(565); sdl_screen = SDL_CreateRGBSurface(SDL_SWSURFACE, 320, 200, 8, 0, 0, 0, 0); @@ -396,6 +396,15 @@ void OSystem_SDL::add_dirty_rect(int x, int y, int w, int h) { else { SDL_Rect *r = &dirty_rect_list[num_dirty_rects++]; + /* Update the dirty region by 1 pixel for graphics drivers + * that "smear" the screen */ + if (_driver_flags & DF_UPDATE_EXPAND_1_PIXEL) { + x--; + y--; + w+=2; + h+=2; + } + /* clip */ if (x<0) { w+=x; x=0; } if (y<0) { h+=y; y=0; } |