fb: add pitch to fb_fragment_t

The put_pixel helpers really needed reworking to properly handle
subframe fragments modules like montage will utilize.  I had the
stride present as it's convenient for a number of modules that
maintain a buf pointer as they progress down a row, but the pitch
is more applicable to put_pixel for scaling the y coordinate.

Now there's both pitch and stride so everyone's happy with what's
most convenient for their needs.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/sdl_fb.c b/src/sdl_fb.c
index 8d0241b..a3eb0d1 100644
--- a/src/sdl_fb.c
+++ b/src/sdl_fb.c
@@ -195,6 +195,7 @@ static void * sdl_fb_page_alloc(void *context, fb_page_t *res_page)
 	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;
 
 	return p;
 }