[Mesa-dev] [PATCH V2 02/22] i965: Choose tiling in brw_miptree_layout() function

Pohjolainen, Topi topi.pohjolainen at intel.com
Thu Apr 23 16:38:14 PDT 2015


On Fri, Apr 17, 2015 at 04:51:23PM -0700, Anuj Phogat wrote:
> This refactoring is required by later patches in this series.
> 
> Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
> ---
>  src/mesa/drivers/dri/i965/brw_tex_layout.c    | 19 +++++++++++++++-
>  src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 31 ++++++++++++++-------------
>  src/mesa/drivers/dri/i965/intel_mipmap_tree.h | 19 ++++++++++++++--
>  3 files changed, 51 insertions(+), 18 deletions(-)
> 
> diff --git a/src/mesa/drivers/dri/i965/brw_tex_layout.c b/src/mesa/drivers/dri/i965/brw_tex_layout.c
> index 7a1e09d..b8408d3 100644
> --- a/src/mesa/drivers/dri/i965/brw_tex_layout.c
> +++ b/src/mesa/drivers/dri/i965/brw_tex_layout.c
> @@ -378,7 +378,13 @@ brw_miptree_layout_texture_3d(struct brw_context *brw,
>  }
>  
>  void
> -brw_miptree_layout(struct brw_context *brw, struct intel_mipmap_tree *mt)
> +brw_miptree_layout(struct brw_context *brw,
> +                   mesa_format format,
> +                   uint32_t width0,
> +                   uint32_t num_samples,
> +                   bool for_bo,
> +                   enum intel_miptree_tiling_mode requested,
> +                   struct intel_mipmap_tree *mt)
>  {
>     bool multisampled = mt->num_samples > 1;

Doesn't given "num_samples" equal to "mt->num_samples", "width0" equal to
"mt->logical_width0" and "format" equal to "mt->format" at this point?

>     bool gen6_hiz_or_stencil = false;
> @@ -461,5 +467,16 @@ brw_miptree_layout(struct brw_context *brw, struct intel_mipmap_tree *mt)
>     }
>     DBG("%s: %dx%dx%d\n", __FUNCTION__,
>         mt->total_width, mt->total_height, mt->cpp);
> +
> +    /* pitch == 0 || height == 0  indicates the null texture */
> +   if (!mt || !mt->total_width || !mt->total_height) {
> +      intel_miptree_release(&mt);
> +      return;
> +   }
> +
> +   if (!for_bo)
> +      mt->tiling = intel_miptree_choose_tiling(brw, format, width0,
> +                                               num_samples,
> +                                               requested, mt);
>  }
>  
> diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> index eb226d5..7a64282 100644
> --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> @@ -232,6 +232,7 @@ intel_miptree_create_layout(struct brw_context *brw,
>                              GLuint depth0,
>                              bool for_bo,
>                              GLuint num_samples,
> +                            enum intel_miptree_tiling_mode requested,
>                              bool force_all_slices_at_each_lod)
>  {
>     struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1);
> @@ -432,7 +433,7 @@ intel_miptree_create_layout(struct brw_context *brw,
>     if (force_all_slices_at_each_lod)
>        mt->array_layout = ALL_SLICES_AT_EACH_LOD;
>  
> -   brw_miptree_layout(brw, mt);
> +   brw_miptree_layout(brw, format, width0, num_samples, for_bo, requested, mt);
>  
>     return mt;
>  }
> @@ -440,7 +441,7 @@ intel_miptree_create_layout(struct brw_context *brw,
>  /**
>   * \brief Helper function for intel_miptree_create().
>   */
> -static uint32_t
> +uint32_t
>  intel_miptree_choose_tiling(struct brw_context *brw,
>                              mesa_format format,
>                              uint32_t width0,
> @@ -609,14 +610,11 @@ intel_miptree_create(struct brw_context *brw,
>  				      first_level, last_level, width0,
>  				      height0, depth0,
>                                      false, num_samples,
> +                                    requested_tiling,

Just as Matt instructed me, you could fix tabs here in the argument list.

>                                      force_all_slices_at_each_lod);
> -   /*
> -    * pitch == 0 || height == 0  indicates the null texture
> -    */
> -   if (!mt || !mt->total_width || !mt->total_height) {
> -      intel_miptree_release(&mt);
> +
> +   if (!mt)
>        return NULL;
> -   }
>  
>     total_width = mt->total_width;
>     total_height = mt->total_height;
> @@ -627,16 +625,11 @@ intel_miptree_create(struct brw_context *brw,
>        total_height = ALIGN(total_height, 64);
>     }
>  
> -   uint32_t tiling = intel_miptree_choose_tiling(brw, format, width0,
> -                                                 num_samples, requested_tiling,
> -                                                 mt);
>     bool y_or_x = false;
>  
> -   if (tiling == (I915_TILING_Y | I915_TILING_X)) {
> +   if (mt->tiling == (I915_TILING_Y | I915_TILING_X)) {
>        y_or_x = true;
>        mt->tiling = I915_TILING_Y;
> -   } else {
> -      mt->tiling = tiling;
>     }
>  
>     unsigned long pitch;
> @@ -721,10 +714,18 @@ intel_miptree_create_for_bo(struct brw_context *brw,
>  
>     target = depth > 1 ? GL_TEXTURE_2D_ARRAY : GL_TEXTURE_2D;
>  
> +   /* 'requested' parameter of intel_miptree_create_layout() is relevant
> +    * only for non bo miptree. Tiling for bo is already computed above.
> +    * So, the tiling requested (INTEL_MIPTREE_TILING_ANY) below is
> +    * just a place holder and will not make any change to the miptree
> +    * tiling format.
> +    */
>     mt = intel_miptree_create_layout(brw, target, format,
>                                      0, 0,
>                                      width, height, depth,
> -                                    true, 0, false);
> +                                    true, 0,
> +                                    INTEL_MIPTREE_TILING_ANY,
> +                                    false);
>     if (!mt) {
>        free(mt);
>        return mt;
> diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
> index 41b6036..f03715b 100644
> --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
> +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
> @@ -540,6 +540,7 @@ intel_miptree_create_layout(struct brw_context *brw,
>                              GLuint depth0,
>                              bool for_bo,
>                              GLuint num_samples,
> +                            enum intel_miptree_tiling_mode requested,
>                              bool force_all_slices_at_each_lod);
>  
>  struct intel_mipmap_tree *
> @@ -737,8 +738,14 @@ void
>  intel_miptree_updownsample(struct brw_context *brw,
>                             struct intel_mipmap_tree *src,
>                             struct intel_mipmap_tree *dst);
> -
> -void brw_miptree_layout(struct brw_context *brw, struct intel_mipmap_tree *mt);
> +void
> +brw_miptree_layout(struct brw_context *brw,
> +                   mesa_format format,
> +                   uint32_t width0,
> +                   uint32_t num_samples,
> +                   bool for_bo,
> +                   enum intel_miptree_tiling_mode requested,
> +                   struct intel_mipmap_tree *mt);
>  
>  void *intel_miptree_map_raw(struct brw_context *brw,
>                              struct intel_mipmap_tree *mt);
> @@ -765,6 +772,14 @@ intel_miptree_unmap(struct brw_context *brw,
>  		    unsigned int level,
>  		    unsigned int slice);
>  
> +uint32_t
> +intel_miptree_choose_tiling(struct brw_context *brw,
> +                            mesa_format format,
> +                            uint32_t width0,
> +                            uint32_t num_samples,
> +                            enum intel_miptree_tiling_mode requested,
> +                            struct intel_mipmap_tree *mt);
> +
>  void
>  intel_hiz_exec(struct brw_context *brw, struct intel_mipmap_tree *mt,
>  	       unsigned int level, unsigned int layer, enum gen6_hiz_op op);
> -- 
> 2.3.4
> 
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