+ page_cache->height_to_page = g_new0(double, page_cache->n_pages + 1);
+ page_cache->dual_height_to_page = g_new0(double, page_cache->n_pages + 2);
+
+ saved_height = 0;
+ for (i = 0; i <= page_cache->n_pages; i++) {
+ if (page_cache->uniform) {
+ if (!swap) {
+ uniform_height = page_cache->uniform_height;
+ } else {
+ uniform_height = page_cache->uniform_width;
+ }
+ page_cache->height_to_page [i] = i * uniform_height;
+ } else {
+ if (!swap) {
+ page_height = page_cache->size_cache [i].height;
+ } else {
+ page_height = page_cache->size_cache [i].width;
+ }
+ page_cache->height_to_page [i] = saved_height;
+ saved_height += page_height;
+ }
+ }
+
+ if (page_cache->dual_even_left && !page_cache->uniform) {
+ if (!swap) {
+ saved_height = page_cache->size_cache [0].height;
+ } else {
+ saved_height = page_cache->size_cache [0].width;
+ }
+ } else {
+ saved_height = 0;
+ }
+ for (i = page_cache->dual_even_left; i < page_cache->n_pages + 2; i += 2) {
+ if (page_cache->uniform) {
+ if (!swap) {
+ uniform_height = page_cache->uniform_height;
+ } else {
+ uniform_height = page_cache->uniform_width;
+ }
+ page_cache->dual_height_to_page [i] = ((i + page_cache->dual_even_left) / 2) * uniform_height;
+ if (i + 1 < page_cache->n_pages + 2)
+ page_cache->dual_height_to_page [i + 1] = ((i + page_cache->dual_even_left) / 2) * uniform_height;
+ } else {
+ if (i + 1 < page_cache->n_pages) {
+ if (!swap) {
+ next_page_height = page_cache->size_cache [i + 1].height;
+ } else {
+ next_page_height = page_cache->size_cache [i + 1].width;
+ }
+ } else {
+ next_page_height = 0;
+ }
+ if (i < page_cache->n_pages) {
+ if (!swap) {
+ page_height = page_cache->size_cache [i].height;
+ } else {
+ page_height = page_cache->size_cache [i].width;
+ }
+ } else {
+ page_height = 0;
+ }
+ if (i + 1 < page_cache->n_pages + 2) {
+ page_cache->dual_height_to_page [i] = saved_height;
+ page_cache->dual_height_to_page [i + 1] = saved_height;
+ saved_height += MAX(page_height, next_page_height);
+ } else {
+ page_cache->dual_height_to_page [i] = saved_height;
+ }
+ }
+ }