gbm: track buffer format through DRI drivers

GBM needs the buffer format in order to communicate with DRM and clients
for things like scanout.

So track the DRI format requested in the various back ends and use it to
return the DRI format back to GBM when requested.  GBM will then map
this into the GBM surface type (which is in turn based on the DRM fb
format list).

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/radeon/radeon_screen.c b/src/mesa/drivers/dri/radeon/radeon_screen.c
index 1f60f2ae43f..85cfe17ad76 100644
--- a/src/mesa/drivers/dri/radeon/radeon_screen.c
+++ b/src/mesa/drivers/dri/radeon/radeon_screen.c
@@ -314,6 +314,8 @@ radeon_create_image(__DRIscreen *screen,
    if (image == NULL)
       return NULL;
 
+   image->dri_format = format;
+
    switch (format) {
    case __DRI_IMAGE_FORMAT_RGB565:
       image->format = MESA_FORMAT_RGB565;