diff options
author | Grigory Kletsko <grigory.kletsko@cogentembedded.com> | 2016-11-02 17:41:54 +0300 |
---|---|---|
committer | Yusuke Nakamura <ynakamura@jp.adit-jv.com> | 2016-12-15 10:14:16 +0000 |
commit | baeac5c376980853149a85eab528a60f28d74bcf (patch) | |
tree | 27a1ea2a3154689c87d8b44e24aae7648ce232d8 /meta-rcar-gen2/recipes-graphics/wayland | |
parent | 55899bf739f36f1e692c42d9219020720e836e73 (diff) |
patch libgbm to retrieve DMA fd for gbm_surface
This patch enables handling buffer object as file descriptor
This patch will be used for meter cluster demo for CES2017
Change-Id: Ib83d69ba887ef9b5b03e99708aedf9b2a97f4d8a
Signed-off-by: Grigory Kletsko <grigory.kletsko@cogentembedded.com>
Diffstat (limited to 'meta-rcar-gen2/recipes-graphics/wayland')
-rw-r--r-- | meta-rcar-gen2/recipes-graphics/wayland/libgbm.bb | 4 | ||||
-rw-r--r-- | meta-rcar-gen2/recipes-graphics/wayland/libgbm/0001-Add-gbm_bo_get_fd-function.patch | 90 |
2 files changed, 94 insertions, 0 deletions
diff --git a/meta-rcar-gen2/recipes-graphics/wayland/libgbm.bb b/meta-rcar-gen2/recipes-graphics/wayland/libgbm.bb index 329e972..b0ddcaf 100644 --- a/meta-rcar-gen2/recipes-graphics/wayland/libgbm.bb +++ b/meta-rcar-gen2/recipes-graphics/wayland/libgbm.bb @@ -7,6 +7,10 @@ LIC_FILES_CHKSUM = "file://gbm.c;beginline=4;endline=22;md5=5cdaac262c876e98e477 SRCREV = "d5a58c689932d42add1301c5cd323da5244374af" SRC_URI = "git://github.com/thayama/libgbm;protocol=git;branch=master" +SRC_URI_append = " \ + file://0001-Add-gbm_bo_get_fd-function.patch \ +" + S = "${WORKDIR}/git" COMPATIBLE_MACHINE = "(r8a7790|r8a7791|r8a7793|r8a7794)" diff --git a/meta-rcar-gen2/recipes-graphics/wayland/libgbm/0001-Add-gbm_bo_get_fd-function.patch b/meta-rcar-gen2/recipes-graphics/wayland/libgbm/0001-Add-gbm_bo_get_fd-function.patch new file mode 100644 index 0000000..e688cde --- /dev/null +++ b/meta-rcar-gen2/recipes-graphics/wayland/libgbm/0001-Add-gbm_bo_get_fd-function.patch @@ -0,0 +1,90 @@ +From e6d4594481a2c7d9625d1f4abf898cd461c30c42 Mon Sep 17 00:00:00 2001 +From: Grigory Kletsko <grigory.kletsko@cogentembedded.com> +Date: Wed, 2 Nov 2016 16:17:16 +0300 +Subject: [PATCH] Add gbm_bo_get_fd() function + +--- + backend_kms.c | 8 ++++++++ + gbm.c | 15 +++++++++++++++ + gbm.h | 3 +++ + gbmint.h | 1 + + 4 files changed, 27 insertions(+) + +diff --git a/backend_kms.c b/backend_kms.c +index cfee3b0..3fc1d66 100644 +--- a/backend_kms.c ++++ b/backend_kms.c +@@ -339,6 +339,13 @@ static int gbm_kms_surface_has_free_buffers(struct gbm_surface *_surface) + return ((!surface->bo[0]->locked) || (!surface->bo[1]->locked)); + } + ++static int gbm_kms_bo_get_fd(struct gbm_bo *_bo) ++{ ++ struct gbm_kms_bo *bo = (struct gbm_kms_bo*)_bo; ++ ++ return bo->fd; ++} ++ + struct gbm_device kms_gbm_device = { + .name = "kms", + +@@ -349,6 +356,7 @@ struct gbm_device kms_gbm_device = { + .bo_import = gbm_kms_bo_import, + .bo_write = gbm_kms_bo_write, + .bo_destroy = gbm_kms_bo_destroy, ++ .bo_get_fd = gbm_kms_bo_get_fd, + + .surface_create = gbm_kms_surface_create, + .surface_lock_front_buffer = gbm_kms_surface_lock_front_buffer, +diff --git a/gbm.c b/gbm.c +index c58576d..458fac0 100644 +--- a/gbm.c ++++ b/gbm.c +@@ -470,3 +470,18 @@ gbm_surface_has_free_buffers(struct gbm_surface *surf) + { + return surf->gbm->surface_has_free_buffers(surf); + } ++ ++/** 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); ++} +diff --git a/gbm.h b/gbm.h +index 9d2a030..ad92935 100644 +--- a/gbm.h ++++ b/gbm.h +@@ -285,6 +285,9 @@ gbm_surface_has_free_buffers(struct gbm_surface *surface); + void + gbm_surface_destroy(struct gbm_surface *surface); + ++int ++gbm_bo_get_fd(struct gbm_bo *bo); ++ + #ifdef __cplusplus + } + #endif +diff --git a/gbmint.h b/gbmint.h +index a467bea..70a8d4a 100644 +--- a/gbmint.h ++++ b/gbmint.h +@@ -70,6 +70,7 @@ struct gbm_device { + void *buffer, uint32_t usage); + int (*bo_write)(struct gbm_bo *bo, const void *buf, size_t data); + void (*bo_destroy)(struct gbm_bo *bo); ++ int (*bo_get_fd)(struct gbm_bo *_bo); + + struct gbm_surface *(*surface_create)(struct gbm_device *gbm, + uint32_t width, uint32_t height, +-- +2.7.4 + |