[igt-dev] [PATCH i-g-t 1/4] lib/igt_fb: Adjust < pixman-0.36.0 float hacks

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Define PIXMAN_rgba_float the same way newer pixman releases do it.
This allows us to compile the code against an old pixman version
while still running it against a more recent release. A similar hack
is already used for cairo.

Suggested-by: Petri Latvala <petri.latvala at intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 lib/igt_fb.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index 6b674c1bcd02..87228cca7936 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -81,7 +81,15 @@
 #endif
 
 #if PIXMAN_VERSION < PIXMAN_VERSION_ENCODE(0, 36, 0)
-#define PIXMAN_rgba_float PIXMAN_invalid
+#define PIXMAN_FORMAT_BYTE(bpp,type,a,r,g,b) \
+	(((bpp >> 3) << 24) |		     \
+	(3 << 22) | ((type) << 16) |	     \
+	((a >> 3) << 12) |		     \
+	((r >> 3) << 8) |		     \
+	((g >> 3) << 4) |		     \
+	((b >> 3)))
+#define PIXMAN_TYPE_RGBA_FLOAT 11
+#define PIXMAN_rgba_float PIXMAN_FORMAT_BYTE(128, PIXMAN_TYPE_RGBA_FLOAT,32,32,32,32)
 #endif
 
 /* drm fourcc/cairo format maps */
-- 
2.21.0