From 6eb20dfe3f505495d12eb3b3a80ccbf9159d4023 Mon Sep 17 00:00:00 2001
From: tasn <tasn@7cbeb6ba-43b4-40fd-8cce-4c39aea84d33>
Date: Mon, 25 Jul 2011 12:02:52 +0000
Subject: [PATCH] Elm engines: Added "buffer" engine.

This engine just creates a buffer and renders everything to that buffer.
It's really useful for creating emulations of input/output and taking
window captures from them.

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/elementary@61688 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33
---
 src/lib/elm_config.c | 3 +++
 src/lib/elm_priv.h   | 1 +
 src/lib/elm_win.c    | 4 ++++
 3 files changed, 8 insertions(+)

diff --git a/src/lib/elm_config.c b/src/lib/elm_config.c
index e1f105b..f8c669d 100644
--- a/src/lib/elm_config.c
+++ b/src/lib/elm_config.c
@@ -30,6 +30,7 @@ const char *_elm_engines[] = {
    "sdl",
    "software_16_sdl",
    "opengl_sdl",
+   "buffer",
    NULL
 };
 
@@ -1460,6 +1461,8 @@ _env_get(void)
                  (!strcasecmp(s, "software-16-wince-gdi")) ||
                  (!strcasecmp(s, "software_16_wince_gdi")))
           eina_stringshare_replace(&_elm_config->engine, ELM_SOFTWARE_16_WINCE);
+        else if (!strcasecmp(s, "buffer"))
+          eina_stringshare_replace(&_elm_config->engine, ELM_BUFFER);
         else if ((!strncmp(s, "shot:", 5)))
           eina_stringshare_replace(&_elm_config->engine, s);
      }
diff --git a/src/lib/elm_priv.h b/src/lib/elm_priv.h
index d80de60..eb2210f 100644
--- a/src/lib/elm_priv.h
+++ b/src/lib/elm_priv.h
@@ -78,6 +78,7 @@ extern const char *_elm_engines[];
 #define ELM_SOFTWARE_SDL      (_elm_engines[9])
 #define ELM_SOFTWARE_16_SDL   (_elm_engines[10])
 #define ELM_OPENGL_SDL        (_elm_engines[11])
+#define ELM_BUFFER            (_elm_engines[12])
 
 #define ELM_FONT_TOKEN_STYLE ":style="
 
diff --git a/src/lib/elm_win.c b/src/lib/elm_win.c
index 6ea7d05..3a88b54 100644
--- a/src/lib/elm_win.c
+++ b/src/lib/elm_win.c
@@ -1527,6 +1527,10 @@ elm_win_add(Evas_Object *parent, const char *name, Elm_Win_Type type)
              win->ee = ecore_evas_gl_sdl_new(NULL, 1, 1, 0, 0);
              FALLBACK_TRY("OpenGL SDL");
           }
+        else if (ENGINE_COMPARE(ELM_BUFFER))
+          {
+             win->ee = ecore_evas_buffer_new(1, 1);
+          }
         else if (!strncmp(_elm_config->engine, "shot:", 5))
           {
              win->ee = ecore_evas_buffer_new(1, 1);
-- 
2.7.4