[Mesa-dev] [PATCH 3/8] i965/dri: Store the screen associated with the image

[Ben Widawsky]

I intend to need to get to the devinfo structure, and storing the screen
is an easy way to do that.

It seems to be the consensus that you cannot share an image between
multiple screens.

Scape-goat: Rob Clark <robdclark at gmail.com>
Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
Reviewed-by: Eric Engestrom <eric.engestrom at imgtec.com>
Acked-by: Daniel Stone <daniels at collabora.com>
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
---
 src/mesa/drivers/dri/i965/intel_image.h  |  1 +
 src/mesa/drivers/dri/i965/intel_screen.c | 16 ++++++++++------
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/intel_image.h b/src/mesa/drivers/dri/i965/intel_image.h
index 9b3816efd1..fd63919b2d 100644
--- a/src/mesa/drivers/dri/i965/intel_image.h
+++ b/src/mesa/drivers/dri/i965/intel_image.h
@@ -65,6 +65,7 @@ struct intel_image_format {
 };
 
 struct __DRIimageRec {
+   struct intel_screen *screen;
    drm_intel_bo *bo;
    uint32_t pitch; /**< in bytes */
    GLenum internal_format;
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index b77933e100..90223bab2b 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -323,7 +323,8 @@ static boolean intel_lookup_fourcc(int dri_format, int *fourcc)
 }
 
 static __DRIimage *
-intel_allocate_image(int dri_format, void *loaderPrivate)
+intel_allocate_image(struct intel_screen *screen, int dri_format,
+                     void *loaderPrivate)
 {
     __DRIimage *image;
 
@@ -331,6 +332,7 @@ intel_allocate_image(int dri_format, void *loaderPrivate)
     if (image == NULL)
 	return NULL;
 
+    image->screen = screen;
     image->dri_format = dri_format;
     image->offset = 0;
 
@@ -381,7 +383,7 @@ intel_create_image_from_name(__DRIscreen *dri_screen,
     __DRIimage *image;
     int cpp;
 
-    image = intel_allocate_image(format, loaderPrivate);
+    image = intel_allocate_image(screen, format, loaderPrivate);
     if (image == NULL)
        return NULL;
 
@@ -557,7 +559,7 @@ intel_create_image_common(__DRIscreen *dri_screen,
    if (use & __DRI_IMAGE_USE_LINEAR)
       tiling = I915_TILING_NONE;
 
-   image = intel_allocate_image(format, loaderPrivate);
+   image = intel_allocate_image(screen, format, loaderPrivate);
    if (image == NULL)
       return NULL;
 
@@ -740,9 +742,11 @@ intel_create_image_from_fds(__DRIscreen *dri_screen,
       return NULL;
 
    if (f->nplanes == 1)
-      image = intel_allocate_image(f->planes[0].dri_format, loaderPrivate);
+      image = intel_allocate_image(screen, f->planes[0].dri_format,
+                                   loaderPrivate);
    else
-      image = intel_allocate_image(__DRI_IMAGE_FORMAT_NONE, loaderPrivate);
+      image = intel_allocate_image(screen, __DRI_IMAGE_FORMAT_NONE,
+                                   loaderPrivate);
 
    if (image == NULL)
       return NULL;
@@ -845,7 +849,7 @@ intel_from_planar(__DRIimage *parent, int plane, void *loaderPrivate)
     offset = parent->offsets[index];
     stride = parent->strides[index];
 
-    image = intel_allocate_image(dri_format, loaderPrivate);
+    image = intel_allocate_image(parent->screen, dri_format, loaderPrivate);
     if (image == NULL)
        return NULL;
 
-- 
2.12.0