[PATCH 4/6] dri/intel: Add intel_fd_for_region

[Keith Packard]

Returns a prime file descriptor for the specified region.

Signed-off-by: Keith Packard <keithp at keithp.com>
---
 src/mesa/drivers/dri/i915/intel_regions.c | 13 +++++++++++++
 src/mesa/drivers/dri/i915/intel_regions.h |  4 ++++
 src/mesa/drivers/dri/i965/intel_regions.c | 13 +++++++++++++
 src/mesa/drivers/dri/i965/intel_regions.h |  4 ++++
 4 files changed, 34 insertions(+)

diff --git a/src/mesa/drivers/dri/i915/intel_regions.c b/src/mesa/drivers/dri/i915/intel_regions.c
index 9f5b89e..bac997d 100644
--- a/src/mesa/drivers/dri/i915/intel_regions.c
+++ b/src/mesa/drivers/dri/i915/intel_regions.c
@@ -238,6 +238,19 @@ intel_region_alloc_for_fd(struct intel_screen *screen,
    return region;
 }
 
+int
+intel_fd_for_region(struct intel_screen *screen,
+                    struct intel_region *region)
+{
+   int  fd;
+   int  ret;
+
+   ret = drm_intel_bo_gem_export_to_prime(region->bo, &fd);
+   if (ret < 0)
+      return ret;
+   return fd;
+}
+
 void
 intel_region_reference(struct intel_region **dst, struct intel_region *src)
 {
diff --git a/src/mesa/drivers/dri/i915/intel_regions.h b/src/mesa/drivers/dri/i915/intel_regions.h
index 6bc4a42..84c013a 100644
--- a/src/mesa/drivers/dri/i915/intel_regions.h
+++ b/src/mesa/drivers/dri/i915/intel_regions.h
@@ -93,6 +93,10 @@ intel_region_alloc_for_fd(struct intel_screen *screen,
                           GLuint width, GLuint height, GLuint pitch,
                           GLuint size, int fd, const char *name);
 
+int
+intel_fd_for_region(struct intel_screen *screen,
+                    struct intel_region *region);
+
 bool
 intel_region_flink(struct intel_region *region, uint32_t *name);
 
diff --git a/src/mesa/drivers/dri/i965/intel_regions.c b/src/mesa/drivers/dri/i965/intel_regions.c
index 3920f4f..2e70326 100644
--- a/src/mesa/drivers/dri/i965/intel_regions.c
+++ b/src/mesa/drivers/dri/i965/intel_regions.c
@@ -238,6 +238,19 @@ intel_region_alloc_for_fd(struct intel_screen *screen,
    return region;
 }
 
+int
+intel_fd_for_region(struct intel_screen *screen,
+                    struct intel_region *region)
+{
+   int  fd;
+   int  ret;
+
+   ret = drm_intel_bo_gem_export_to_prime(region->bo, &fd);
+   if (ret < 0)
+      return ret;
+   return fd;
+}
+
 void
 intel_region_reference(struct intel_region **dst, struct intel_region *src)
 {
diff --git a/src/mesa/drivers/dri/i965/intel_regions.h b/src/mesa/drivers/dri/i965/intel_regions.h
index 05dfef3..f471b94 100644
--- a/src/mesa/drivers/dri/i965/intel_regions.h
+++ b/src/mesa/drivers/dri/i965/intel_regions.h
@@ -95,6 +95,10 @@ intel_region_alloc_for_fd(struct intel_screen *screen,
                           GLuint size,
                           int fd, const char *name);
 
+int
+intel_fd_for_region(struct intel_screen *screen,
+                    struct intel_region *region);
+
 bool
 intel_region_flink(struct intel_region *region, uint32_t *name);
 
-- 
1.8.4.2


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