Mercurial > MadButterfly
diff src/X_main.c @ 24:e598bc809c0f
No more flash when animation.
1. Add a buffer surface.
2. Draw on the surface
3. Copy content of buffer surface to XLib surface.
| author | Thinker K.F. Li <thinker@branda.to> |
|---|---|
| date | Sun, 03 Aug 2008 02:08:31 +0800 |
| parents | 56f592f56ff7 |
| children | d50f33040de6 |
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--- a/src/X_main.c Sat Aug 02 23:10:42 2008 +0800 +++ b/src/X_main.c Sun Aug 03 02:08:31 2008 +0800 @@ -13,6 +13,8 @@ Display *display; void draw_path(cairo_t *cr, int w, int h) { + cairo_t *tmpcr; + cairo_surface_t *tmpsuf; redraw_man_t rdman; shape_t *path1, *path2, *path3; coord_t *coord1, *coord2; @@ -21,7 +23,10 @@ grad_stop_t fill3_stops[3]; int i; - redraw_man_init(&rdman, cr); + tmpsuf = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w, h); + tmpcr = cairo_create(tmpsuf); + cairo_set_source_surface(cr, tmpsuf, 0, 0); + redraw_man_init(&rdman, tmpcr, cr); coord1 = rdman_coord_new(&rdman, rdman.root_coord); coord2 = rdman_coord_new(&rdman, rdman.root_coord); @@ -94,6 +99,8 @@ redraw_man_destroy(&rdman); sh_path_free(path1); sh_path_free(path2); + cairo_destroy(tmpcr); + cairo_surface_destroy(tmpsuf); } void drawing(cairo_surface_t *surface, int w, int h) {