From f54f5891be24eea2af2d1c9864a3f74c1e7648fc Mon Sep 17 00:00:00 2001 From: Kristian Høgsberg <krh@bitplanet.net> Date: Fri, 28 Mar 2014 00:33:54 -0700 Subject: gbm: Add gbm_bo_get_fd() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add gbm function to get a DMA-BUF file descriptor for a gbm bo. Signed-off-by: Kristian Høgsberg <krh@bitplanet.net> --- src/gbm/main/gbm.c | 17 +++++++++++++++++ src/gbm/main/gbm.h | 3 +++ src/gbm/main/gbmint.h | 1 + 3 files changed, 21 insertions(+) (limited to 'src/gbm/main') diff --git a/src/gbm/main/gbm.c b/src/gbm/main/gbm.c index 30785a66a4d..ad5208ca136 100644 --- a/src/gbm/main/gbm.c +++ b/src/gbm/main/gbm.c @@ -230,6 +230,23 @@ gbm_bo_get_handle(struct gbm_bo *bo) return bo->handle; } +/** Get a DMA-BUF file descriptor for the buffer object + * + * This function creates a DMA-BUF (also known as PRIME) file descriptor + * handle for the buffer object. Eeach call to gbm_bo_get_fd() returns a new + * file descriptor and the caller is responsible for closing the file + * descriptor. + + * \param bo The buffer object + * \return Returns a file descriptor referring to the underlying buffer + */ +GBM_EXPORT int +gbm_bo_get_fd(struct gbm_bo *bo) +{ + return bo->gbm->bo_get_fd(bo); +} + + /** Write data into the buffer object * * If the buffer object was created with the GBM_BO_USE_WRITE flag, diff --git a/src/gbm/main/gbm.h b/src/gbm/main/gbm.h index 9d2a0308766..9e0c7705ea8 100644 --- a/src/gbm/main/gbm.h +++ b/src/gbm/main/gbm.h @@ -255,6 +255,9 @@ gbm_bo_get_device(struct gbm_bo *bo); union gbm_bo_handle gbm_bo_get_handle(struct gbm_bo *bo); +int +gbm_bo_get_fd(struct gbm_bo *bo); + int gbm_bo_write(struct gbm_bo *bo, const void *buf, size_t count); diff --git a/src/gbm/main/gbmint.h b/src/gbm/main/gbmint.h index 4baf8e3d3d1..31345e6f6de 100644 --- a/src/gbm/main/gbmint.h +++ b/src/gbm/main/gbmint.h @@ -69,6 +69,7 @@ struct gbm_device { struct gbm_bo *(*bo_import)(struct gbm_device *gbm, uint32_t type, void *buffer, uint32_t usage); int (*bo_write)(struct gbm_bo *bo, const void *buf, size_t data); + int (*bo_get_fd)(struct gbm_bo *bo); void (*bo_destroy)(struct gbm_bo *bo); struct gbm_surface *(*surface_create)(struct gbm_device *gbm, -- cgit v1.2.3