[Mesa-dev] [PATCH 3/3] intel/blorp_blit: Add option to dump surfaces on blits

[Jason Ekstrand]

On Wed, Nov 16, 2016 at 12:56 AM, Jordan Justen <jordan.l.justen at intel.com>
wrote:

> Enabling this option causes the source and destination surfaces to be
> dumped out to debug files. The destination is dumped both before and
> after the blit operation.
>
> Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
> ---
>  src/intel/blorp/blorp_blit.c | 53 ++++++++++++++++++++++++++++++
> ++++++++++++++
>  1 file changed, 53 insertions(+)
>
> diff --git a/src/intel/blorp/blorp_blit.c b/src/intel/blorp/blorp_blit.c
> index c0b56c3..c1c4219 100644
> --- a/src/intel/blorp/blorp_blit.c
> +++ b/src/intel/blorp/blorp_blit.c
> @@ -28,6 +28,8 @@
>
>  #define FILE_DEBUG_FLAG DEBUG_BLORP
>
> +static const bool isl_surface_debug_dump = false;
> +
>  /**
>   * Enum to specify the order of arguments in a sampler message
>   */
> @@ -1428,6 +1430,41 @@ surf_retile_w_to_y(const struct isl_device *isl_dev,
>  }
>
>  static void
> +dump_blorp_surf(const struct blorp_context *blorp,
> +                const struct brw_blorp_surface_info *surf,
> +                const char *basename)
> +{
> +   void *map, *aux_map;
> +   unsigned int size, aux_size;
> +   bool was_mapped, aux_was_mapped;
> +
> +   blorp->map(blorp, &surf->addr, &map, &size, &was_mapped);
> +   if (map == NULL)
> +      return;
> +
> +   if (surf->aux_addr.buffer) {
> +      blorp->map(blorp, &surf->aux_addr, &aux_map, &aux_size,
> &aux_was_mapped);
> +      if (aux_map == NULL) {
> +         if (!was_mapped)
> +            blorp->unmap(blorp, &surf->addr);
> +         return;
> +      }
> +   } else {
> +      aux_map = NULL;
> +      aux_size = 0;
> +   }
> +
> +   isl_dump_surf(blorp->isl_dev, &surf->surf, map, size,
> +                 aux_map ? &surf->aux_surf : NULL, aux_map, aux_size,
> +                 basename);
> +
> +   if (!was_mapped)
> +      blorp->unmap(blorp, &surf->addr);
> +   if (surf->aux_addr.buffer && !aux_was_mapped)
> +      blorp->unmap(blorp, &surf->aux_addr);
>

Never mind my earlier comments.  You already thought about it!


> +}
> +
> +static void
>  do_blorp_blit(struct blorp_batch *batch,
>                struct blorp_params *params,
>                struct brw_blorp_blit_prog_key *wm_prog_key,
> @@ -1657,6 +1694,11 @@ blorp_blit(struct blorp_batch *batch,
>     brw_blorp_surface_info_init(batch->blorp, &params.dst, dst_surf,
> dst_level,
>                                 dst_layer, dst_format, true);
>
> +   if (isl_surface_debug_dump) {
> +      dump_blorp_surf(batch->blorp, &params.src, "blorp-blit-src");
> +      dump_blorp_surf(batch->blorp, &params.dst, "blorp-blit-dst-before");
> +   }
> +
>     params.src.view.swizzle = src_swizzle;
>     params.dst.view.swizzle = dst_swizzle;
>
> @@ -1708,6 +1750,9 @@ blorp_blit(struct blorp_batch *batch,
>                   src_x0, src_y0, src_x1, src_y1,
>                   dst_x0, dst_y0, dst_x1, dst_y1,
>                   mirror_x, mirror_y);
> +
> +   if (isl_surface_debug_dump)
> +      dump_blorp_surf(batch->blorp, &params.dst, "blorp-blit-dst-after");
>  }
>
>  static enum isl_format
> @@ -1850,6 +1895,11 @@ blorp_copy(struct blorp_batch *batch,
>     brw_blorp_surface_info_init(batch->blorp, &params.dst, dst_surf,
> dst_level,
>                                 dst_layer, ISL_FORMAT_UNSUPPORTED, true);
>
> +   if (isl_surface_debug_dump) {
> +      dump_blorp_surf(batch->blorp, &params.src, "blorp-copy-src");
> +      dump_blorp_surf(batch->blorp, &params.dst, "blorp-copy-dst-before");
> +   }
> +
>     struct brw_blorp_blit_prog_key wm_prog_key;
>     memset(&wm_prog_key, 0, sizeof(wm_prog_key));
>
> @@ -1889,4 +1939,7 @@ blorp_copy(struct blorp_batch *batch,
>                   src_x, src_y, src_x + src_width, src_y + src_height,
>                   dst_x, dst_y, dst_x + dst_width, dst_y + dst_height,
>                   false, false);
> +
> +   if (isl_surface_debug_dump)
> +      dump_blorp_surf(batch->blorp, &params.dst, "blorp-copy-dst-after");
>  }
> --
> 2.10.2
>
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