diff options
Diffstat (limited to 'src/sdl_fb.c')
| -rw-r--r-- | src/sdl_fb.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/sdl_fb.c b/src/sdl_fb.c index 2605d6c..249d746 100644 --- a/src/sdl_fb.c +++ b/src/sdl_fb.c @@ -199,13 +199,16 @@ static void * sdl_fb_page_alloc(til_fb_t *fb, void *context, til_fb_page_t *res_ p->surface = SDL_CreateRGBSurface(0, c->width, c->height, 32, 0, 0, 0, 0); + /* rototiller wants to assume all pixels to be 32-bit aligned, so prevent unaligning pitches */ + assert(!(p->surface->pitch & 0x3)); + res_page->fragment.buf = p->surface->pixels; res_page->fragment.width = c->width; res_page->fragment.frame_width = c->width; res_page->fragment.height = c->height; res_page->fragment.frame_height = c->height; - res_page->fragment.stride = p->surface->pitch - (c->width * 4); - res_page->fragment.pitch = p->surface->pitch; + res_page->fragment.pitch = p->surface->pitch >> 2; + res_page->fragment.stride = res_page->fragment.pitch - c->width; return p; } |