[Mesa-dev] [PATCH 3/3] gbm: Add interface to create bo from name.

[Zhigang Gong]

Added a new interface to create a gbm_bo from external name.

Signed-off-by: Zhigang Gong <zhigang.gong at linux.intel.com>
---
 src/gbm/backends/dri/gbm_dri.c |   40 ++++++++++++++++++++++++++++++++++++++++
 src/gbm/main/gbm.c             |   12 ++++++++++++
 src/gbm/main/gbm.h             |    6 ++++++
 src/gbm/main/gbmint.h          |    4 ++++
 4 files changed, 62 insertions(+), 0 deletions(-)

diff --git a/src/gbm/backends/dri/gbm_dri.c b/src/gbm/backends/dri/gbm_dri.c
index 7673953..c8f6196 100644
--- a/src/gbm/backends/dri/gbm_dri.c
+++ b/src/gbm/backends/dri/gbm_dri.c
@@ -356,6 +356,45 @@ gbm_dri_bo_create(struct gbm_device *gbm,
    return &bo->base.base;
 }
 
+static struct gbm_bo *
+gbm_dri_bo_create_from_name(struct gbm_device *gbm,
+                            uint32_t width, uint32_t height,
+                            enum gbm_bo_format format, int name,
+                            int pitch)
+{
+   struct gbm_dri_device *dri = gbm_dri_device(gbm);
+   struct gbm_dri_bo *bo;
+   int dri_format;
+
+   if (gbm_dri_match_format(format, &dri_format) != 0)
+      return NULL;
+
+   bo = calloc(1, sizeof *bo);
+   if (bo == NULL)
+      return NULL;
+
+   bo->base.base.gbm = gbm;
+   bo->base.base.width = width;
+   bo->base.base.height = height;
+
+   bo->image =
+      dri->image->createImageFromName(dri->screen,
+                                      width, height,
+                                      dri_format, name, pitch,
+                                      bo);
+   if (bo->image == NULL) {
+      free(bo);
+      return NULL;
+   }
+
+   dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HANDLE,
+                          &bo->base.base.handle.s32);
+   dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_STRIDE,
+                          (int *) &bo->base.base.pitch);
+
+   return &bo->base.base;
+}
+
 static void
 dri_destroy(struct gbm_device *gbm)
 {
@@ -380,6 +419,7 @@ dri_device_create(int fd)
    dri->base.base.fd = fd;
    dri->base.base.bo_create = gbm_dri_bo_create;
    dri->base.base.bo_create_from_egl_image = gbm_dri_bo_create_from_egl_image;
+   dri->base.base.bo_create_from_name = gbm_dri_bo_create_from_name;
    dri->base.base.is_format_supported = gbm_dri_is_format_supported;
    dri->base.base.bo_destroy = gbm_dri_bo_destroy;
    dri->base.base.destroy = dri_destroy;
diff --git a/src/gbm/main/gbm.c b/src/gbm/main/gbm.c
index 8440b2c..71c02a2 100644
--- a/src/gbm/main/gbm.c
+++ b/src/gbm/main/gbm.c
@@ -177,6 +177,18 @@ gbm_bo_create(struct gbm_device *gbm,
 }
 
 GBM_EXPORT struct gbm_bo *
+gbm_bo_create_from_name(struct gbm_device *gbm,
+                        uint32_t width, uint32_t height,
+                        enum gbm_bo_format format, int name,
+                        int pitch)
+{
+   if (width == 0 || height == 0)
+      return NULL;
+
+   return gbm->bo_create_from_name(gbm, width, height, format, name, pitch);
+}
+
+GBM_EXPORT struct gbm_bo *
 gbm_bo_create_from_egl_image(struct gbm_device *gbm,
                              void *egl_dpy, void *egl_image,
                              uint32_t width, uint32_t height,
diff --git a/src/gbm/main/gbm.h b/src/gbm/main/gbm.h
index e3cecb4..49ff2a8 100644
--- a/src/gbm/main/gbm.h
+++ b/src/gbm/main/gbm.h
@@ -88,6 +88,12 @@ gbm_bo_create(struct gbm_device *gbm,
               enum gbm_bo_format format, uint32_t flags);
 
 struct gbm_bo *
+gbm_bo_create_from_name(struct gbm_device *gbm,
+                        uint32_t width, uint32_t height,
+                        enum gbm_bo_format format, int name,
+                        int pitch);
+
+struct gbm_bo *
 gbm_bo_create_from_egl_image(struct gbm_device *gbm,
                              void *egl_dpy, void *egl_img,
                              uint32_t width, uint32_t height,
diff --git a/src/gbm/main/gbmint.h b/src/gbm/main/gbmint.h
index fb8db80..1aab789 100644
--- a/src/gbm/main/gbmint.h
+++ b/src/gbm/main/gbmint.h
@@ -60,6 +60,10 @@ struct gbm_device {
                                               void *egl_dpy, void *egl_img,
                                               uint32_t width, uint32_t height,
                                               uint32_t usage);
+   struct gbm_bo *(*bo_create_from_name)(struct gbm_device *gbm,
+                                         uint32_t width, uint32_t height,
+                                         enum gbm_bo_format format, int name,
+                                         int pitch);
    void (*bo_destroy)(struct gbm_bo *bo);
 };
 
-- 
1.7.3.1