[retro-gtk] environment: Don't set unkown pixel formats

[Adrien Plazas <aplazas src gnome org>]

commit b6c78c07f2d14484c1ce2cf5ccfca171b24b95ae
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu Dec 17 19:32:33 2020 +0100

    environment: Don't set unkown pixel formats
    
    Instead log the critical error and return the failure.

 retro-runner/retro-environment.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
---
diff --git a/retro-runner/retro-environment.c b/retro-runner/retro-environment.c
index 4fd5270..efb45db 100644
--- a/retro-runner/retro-environment.c
+++ b/retro-runner/retro-environment.c
@@ -407,6 +407,17 @@ static gboolean
 set_pixel_format (RetroCore              *self,
                   const RetroPixelFormat *pixel_format)
 {
+  switch (*pixel_format) {
+  case RETRO_PIXEL_FORMAT_XRGB1555:
+  case RETRO_PIXEL_FORMAT_XRGB8888:
+  case RETRO_PIXEL_FORMAT_RGB565:
+    break;
+  default:
+    g_critical ("Couldn't set unknown pixel format %d", *pixel_format);
+
+    return FALSE;
+  }
+
   self->pixel_format = *pixel_format;
 
   return TRUE;