softpipe: add image support to softpipe (v3)

This adds support for ARB_shader_image_load_store to softpipe.

v2: add RESQ support (Ilia)
v3: constify, cleanup internals, add some comments (Brian).

Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c
index 52ec373f8f2..64666fee03f 100644
--- a/src/gallium/drivers/softpipe/sp_texture.c
+++ b/src/gallium/drivers/softpipe/sp_texture.c
@@ -270,9 +270,9 @@ softpipe_resource_get_handle(struct pipe_screen *screen,
  * Helper function to compute offset (in bytes) for a particular
  * texture level/face/slice from the start of the buffer.
  */
-static unsigned
-sp_get_tex_image_offset(const struct softpipe_resource *spr,
-                        unsigned level, unsigned layer)
+unsigned
+softpipe_get_tex_image_offset(const struct softpipe_resource *spr,
+                              unsigned level, unsigned layer)
 {
    unsigned offset = spr->level_offset[level];
 
@@ -422,7 +422,7 @@ softpipe_transfer_map(struct pipe_context *pipe,
    pt->stride = spr->stride[level];
    pt->layer_stride = spr->img_stride[level];
 
-   spt->offset = sp_get_tex_image_offset(spr, level, box->z);
+   spt->offset = softpipe_get_tex_image_offset(spr, level, box->z);
 
    spt->offset +=
          box->y / util_format_get_blockheight(format) * spt->base.stride +