exa: A simple 3rd backend implementation.

- Based on driver pixmaps with some changes (completely transparent to driver).
- It helps with the problem of known software fallbacks, such as trapezoids.
- exaDoMigration is now called for all cases that provide a do_migration hook.
- exa_migration.c is renamed to exa_migration_classic.c

1 files changed, 7 insertions, 0 deletions

diff --git a/exa/exa.h b/exa/exa.h
index 1d2c6a9e6..40ac1ddba 100644
--- a/exa/exa.h
+++ b/exa/exa.h
@@ -758,6 +758,13 @@ typedef struct _ExaDriver {
  */
 #define EXA_SUPPORTS_OFFSCREEN_OVERLAPS (1 << 5)
 
+/**
+ * EXA_MIXED_PIXMAPS will hide unacceleratable pixmaps from drivers and manage the
+ * problem known software fallbacks like trapezoids. This only migrates pixmaps one way
+ * into a driver pixmap and then pins it.
+ */
+#define EXA_MIXED_PIXMAPS (1 << 6)
+
 /** @} */
 
 /* in exa.c */