1 files changed, 100 insertions, 0 deletions

diff --git a/libraries/evas/src/modules/engines/wayland_shm/evas_outbuf.c b/libraries/evas/src/modules/engines/wayland_shm/evas_outbuf.c
new file mode 100644
index 0000000..490a978
--- /dev/null
+++ b/libraries/evas/src/modules/engines/wayland_shm/evas_outbuf.c
@@ -0,0 +1,100 @@
+#include "evas_common.h"
+#include "evas_engine.h"
+
+void 
+evas_outbuf_free(Outbuf *ob) 
+{
+   if (!ob) return;
+   if (ob->priv.buffer) evas_cache_image_drop(&ob->priv.buffer->cache_entry);
+   free(ob);
+}
+
+void 
+evas_outbuf_resize(Outbuf *ob, int w, int h) 
+{
+   if (!ob) return;
+   if ((ob->w == w) && (ob->h == h)) return;
+   ob->w = w;
+   ob->h = h;
+   if (ob->priv.buffer) evas_cache_image_drop(&ob->priv.buffer->cache_entry);
+   ob->priv.buffer = NULL;
+}
+
+Outbuf *
+evas_outbuf_setup(int w, int h, int rot, void *dest) 
+{
+   Outbuf *ob = NULL;
+
+   if (!(ob = calloc(1, sizeof(Outbuf)))) return NULL;
+
+   ob->w = w;
+   ob->h = h;
+   ob->rotation = rot;
+   ob->priv.dest = dest;
+
+   ob->priv.buffer = 
+     (RGBA_Image *)evas_cache_image_data(evas_common_image_cache_get(), 
+                                         w, h, ob->priv.dest, 
+                                         1, EVAS_COLORSPACE_ARGB8888);
+
+   return ob;
+}
+
+RGBA_Image *
+evas_outbuf_new_region_for_update(Outbuf *ob, int x, int y, int w, int h, int *cx, int *cy, int *cw, int *ch) 
+{
+   if (ob->priv.buffer)
+     {
+        *cx = x; *cy = y; *cw = w; *ch = h;
+        return ob->priv.buffer;
+     }
+   else
+     {
+        RGBA_Image *im;
+
+        *cx = 0; *cy = 0; *cw = w; *ch = h;
+        im = (RGBA_Image *)evas_cache_image_empty(evas_common_image_cache_get());
+        if (im) 
+          {
+             im->cache_entry.flags.alpha = 1;
+             im = (RGBA_Image *)evas_cache_image_size_set(&im->cache_entry, w, h);
+          }
+
+        return im;
+     }
+
+   return NULL;
+}
+
+void 
+evas_outbuf_push_updated_region(Outbuf *ob, RGBA_Image *update, int x __UNUSED__, int y, int w, int h) 
+{
+   if (!ob->priv.dest) return;
+   if (!ob->priv.buffer) 
+     {
+        Gfx_Func_Copy func;
+
+        func = evas_common_draw_func_copy_get(w, 0);
+        if (func) 
+          {
+             DATA32 *dst, *src;
+             int yy = 0, bytes = 0;
+
+             bytes = ((w * sizeof(int)) * h);
+             for (yy = 0; yy < h; yy++) 
+               {
+                  src = update->image.data + (yy * update->cache_entry.w);
+                  dst = (DATA32 *)((DATA8 *)(ob->priv.dest) + 
+                                   ((y + yy) * bytes));
+                  func(src, dst, w);
+               }
+          }
+     }
+}
+
+void 
+evas_outbuf_free_region_for_update(Outbuf *ob, RGBA_Image *update) 
+{
+   if (!ob) return;
+   if (update != ob->priv.buffer) evas_cache_image_drop(&update->cache_entry);
+}