[retro-gtk/const-pixels] framebuffer: Make retro_framebuffer_get_pixels() return const data

[Adrien Plazas <aplazas src gnome org>]

commit 425a61895986ac1a3356ab67c9784954ed4325f4
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sat Feb 22 17:12:06 2020 +0100

    framebuffer: Make retro_framebuffer_get_pixels() return const data
    
    It shouldn't be modified and it's already used in a const way.

 retro-gtk/retro-core.c             | 2 +-
 shared/retro-framebuffer-private.h | 2 +-
 shared/retro-framebuffer.c         | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/retro-gtk/retro-core.c b/retro-gtk/retro-core.c
index 610f6e9..8a9cce6 100644
--- a/retro-gtk/retro-core.c
+++ b/retro-gtk/retro-core.c
@@ -922,7 +922,7 @@ video_output_cb (IpcRunner *runner,
   gsize rowstride;
   guint width, height;
   gdouble aspect_ratio;
-  gpointer pixels;
+  gconstpointer pixels;
 
   retro_framebuffer_lock (self->framebuffer);
 
diff --git a/shared/retro-framebuffer-private.h b/shared/retro-framebuffer-private.h
index a3aaed9..5f5dcb0 100644
--- a/shared/retro-framebuffer-private.h
+++ b/shared/retro-framebuffer-private.h
@@ -40,7 +40,7 @@ gsize retro_framebuffer_get_rowstride (RetroFramebuffer *self);
 guint retro_framebuffer_get_width (RetroFramebuffer *self);
 guint retro_framebuffer_get_height (RetroFramebuffer *self);
 gdouble retro_framebuffer_get_aspect_ratio (RetroFramebuffer *self);
-gpointer retro_framebuffer_get_pixels (RetroFramebuffer *self);
+gconstpointer retro_framebuffer_get_pixels (RetroFramebuffer *self);
 
 #endif
 
diff --git a/shared/retro-framebuffer.c b/shared/retro-framebuffer.c
index 094f238..3deaf95 100644
--- a/shared/retro-framebuffer.c
+++ b/shared/retro-framebuffer.c
@@ -282,7 +282,7 @@ retro_framebuffer_get_aspect_ratio (RetroFramebuffer *self)
   return self->metadata->aspect_ratio;
 }
 
-gpointer
+gconstpointer
 retro_framebuffer_get_pixels (RetroFramebuffer *self)
 {
   gsize size;