[Mesa-dev] [PATCH] nv50, nvc0: enable/disable seamless cubemap texturing as requested

Samuel Pitoiset samuel.pitoiset at gmail.com
Sun Feb 14 23:23:45 UTC 2016



On 02/14/2016 04:18 AM, Ilia Mirkin wrote:
> In a situation where the seamless setting isn't available on a
> per-texture basis (G200+ Teslas, and all Fermis), assume that all
> samplers will have it identically set, and enable accordingly.
>
> This fixes arb_seamless_cubemap piglit test on Fermi and Tesla.
>
> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
> ---
>   src/gallium/drivers/nouveau/nv50/nv50_context.h      | 1 +
>   src/gallium/drivers/nouveau/nv50/nv50_screen.c       | 2 +-
>   src/gallium/drivers/nouveau/nv50/nv50_screen.h       | 1 +
>   src/gallium/drivers/nouveau/nv50/nv50_state.c        | 2 ++
>   src/gallium/drivers/nouveau/nv50/nv50_stateobj_tex.h | 1 +
>   src/gallium/drivers/nouveau/nv50/nv50_tex.c          | 1 +
>   src/gallium/drivers/nouveau/nv50/nv50_vbo.c          | 8 ++++++++
>   src/gallium/drivers/nouveau/nvc0/nvc0_context.h      | 1 +
>   src/gallium/drivers/nouveau/nvc0/nvc0_screen.c       | 3 +--
>   src/gallium/drivers/nouveau/nvc0/nvc0_screen.h       | 1 +
>   src/gallium/drivers/nouveau/nvc0/nvc0_tex.c          | 1 +
>   src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c          | 8 ++++++++
>   12 files changed, 27 insertions(+), 3 deletions(-)
>
> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_context.h b/src/gallium/drivers/nouveau/nv50/nv50_context.h
> index 23d8210..2620d03 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv50_context.h
> +++ b/src/gallium/drivers/nouveau/nv50/nv50_context.h
> @@ -153,6 +153,7 @@ struct nv50_context {
>      uint32_t textures_coherent[3];
>      struct nv50_tsc_entry *samplers[3][PIPE_MAX_SAMPLERS];
>      unsigned num_samplers[3];
> +   bool seamless_cube_map;
>
>      uint8_t num_so_targets;
>      uint8_t so_targets_dirty;
> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
> index 14d0085..c0dc6b8 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
> +++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
> @@ -562,7 +562,7 @@ nv50_screen_init_hwctx(struct nv50_screen *screen)
>
>      if (screen->tesla->oclass >= NVA0_3D_CLASS) {
>         BEGIN_NV04(push, SUBC_3D(NVA0_3D_TEX_MISC), 1);
> -      PUSH_DATA (push, NVA0_3D_TEX_MISC_SEAMLESS_CUBE_MAP);
> +      PUSH_DATA (push, 0);

This is not documented in rnndb, do you know what's the meaning of 0 
here? If so, could you please update the doc?

>      }
>
>      BEGIN_NV04(push, NV50_3D(SCREEN_Y_CONTROL), 1);
> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.h b/src/gallium/drivers/nouveau/nv50/nv50_screen.h
> index 2a4983d..328424a 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv50_screen.h
> +++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.h
> @@ -50,6 +50,7 @@ struct nv50_graph_state {
>      uint8_t num_samplers[3];
>      uint8_t prim_size;
>      uint16_t scissor;
> +   bool seamless_cube_map;
>   };
>
>   struct nv50_screen {
> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_state.c b/src/gallium/drivers/nouveau/nv50/nv50_state.c
> index cb04043..844b276 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv50_state.c
> +++ b/src/gallium/drivers/nouveau/nv50/nv50_state.c
> @@ -510,6 +510,8 @@ nv50_sampler_state_create(struct pipe_context *pipe,
>            so->tsc[1] |= NVE4_TSC_1_CUBE_SEAMLESS;
>         if (!cso->normalized_coords)
>            so->tsc[1] |= NVE4_TSC_1_FORCE_NONNORMALIZED_COORDS;
> +   } else {
> +      so->seamless_cube_map = cso->seamless_cube_map;
>      }
>
>      if (cso->max_anisotropy >= 16)
> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_stateobj_tex.h b/src/gallium/drivers/nouveau/nv50/nv50_stateobj_tex.h
> index e0793bb..6bc4514 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv50_stateobj_tex.h
> +++ b/src/gallium/drivers/nouveau/nv50/nv50_stateobj_tex.h
> @@ -7,6 +7,7 @@
>   struct nv50_tsc_entry {
>      int id;
>      uint32_t tsc[8];
> +   bool seamless_cube_map;
>   };
>
>   static inline struct nv50_tsc_entry *
> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_tex.c b/src/gallium/drivers/nouveau/nv50/nv50_tex.c
> index c3f4336..1ff9293 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv50_tex.c
> +++ b/src/gallium/drivers/nouveau/nv50/nv50_tex.c
> @@ -364,6 +364,7 @@ nv50_validate_tsc(struct nv50_context *nv50, int s)
>            PUSH_DATA (push, (i << 4) | 0);
>            continue;
>         }
> +      nv50->seamless_cube_map = tsc->seamless_cube_map;
>         if (tsc->id < 0) {
>            tsc->id = nv50_screen_tsc_alloc(nv50->screen, tsc);
>
> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_vbo.c b/src/gallium/drivers/nouveau/nv50/nv50_vbo.c
> index 5369d52..56bdc68 100644
> --- a/src/gallium/drivers/nouveau/nv50/nv50_vbo.c
> +++ b/src/gallium/drivers/nouveau/nv50/nv50_vbo.c
> @@ -816,6 +816,14 @@ nv50_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
>         PUSH_DATA (push, 0x20);
>      }
>
> +   if (nv50->screen->base.class_3d >= NVA0_3D_CLASS &&
> +       nv50->seamless_cube_map != nv50->state.seamless_cube_map) {
> +      nv50->state.seamless_cube_map = nv50->seamless_cube_map;
> +      BEGIN_NV04(push, SUBC_3D(NVA0_3D_TEX_MISC), 1);
> +      PUSH_DATA (push, NVA0_3D_TEX_MISC_SEAMLESS_CUBE_MAP * nv50->seamless_cube_map);

Well, I know that nv50->seamless_cube_map is a boolean, but this looks 
like a bit strange to me actually. :-)
What about nv50->seamless_cube_map ? NVA0_3D_TEX_MISC_SEAMLESS_CUBE_MAP 
: 0 ?

Btw, you have an extra empty line below.

> +   }
> +
> +
>      if (nv50->vbo_fifo) {
>         nv50_push_vbo(nv50, info);
>         push->kick_notify = nv50_default_kick_notify;
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_context.h b/src/gallium/drivers/nouveau/nvc0/nvc0_context.h
> index b3a55e8..191aa3c 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_context.h
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_context.h
> @@ -157,6 +157,7 @@ struct nvc0_context {
>      struct nv50_tsc_entry *samplers[6][PIPE_MAX_SAMPLERS];
>      unsigned num_samplers[6];
>      uint16_t samplers_dirty[6];
> +   bool seamless_cube_map;
>
>      uint32_t tex_handles[6][PIPE_MAX_SAMPLERS]; /* for nve4 */
>
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
> index 2b12de4..dc798ad 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
> @@ -862,8 +862,7 @@ nvc0_screen_create(struct nouveau_device *dev)
>      BEGIN_NVC0(push, NVC0_3D(SHADE_MODEL), 1);
>      PUSH_DATA (push, NVC0_3D_SHADE_MODEL_SMOOTH);
>      if (screen->eng3d->oclass < NVE4_3D_CLASS) {
> -      BEGIN_NVC0(push, NVC0_3D(TEX_MISC), 1);
> -      PUSH_DATA (push, NVC0_3D_TEX_MISC_SEAMLESS_CUBE_MAP);
> +      IMMED_NVC0(push, NVC0_3D(TEX_MISC), 0);
>      } else {
>         BEGIN_NVC0(push, NVE4_3D(TEX_CB_INDEX), 1);
>         PUSH_DATA (push, 15);
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.h b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.h
> index 1a56177..2e03157 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.h
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.h
> @@ -53,6 +53,7 @@ struct nvc0_graph_state {
>      uint32_t clip_mode;
>      uint32_t uniform_buffer_bound[5];
>      struct nvc0_transform_feedback_state *tfb;
> +   bool seamless_cube_map;
>   };
>
>   struct nvc0_screen {
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c b/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
> index 7223f5a..69527c1 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
> @@ -410,6 +410,7 @@ nvc0_validate_tsc(struct nvc0_context *nvc0, int s)
>            commands[n++] = (i << 4) | 0;
>            continue;
>         }
> +      nvc0->seamless_cube_map = tsc->seamless_cube_map;
>         if (tsc->id < 0) {
>            tsc->id = nvc0_screen_tsc_alloc(nvc0->screen, tsc);
>
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c b/src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c
> index 032b3c1..2505cd4 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c
> @@ -984,6 +984,14 @@ nvc0_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
>         }
>      }
>
> +   if (nvc0->screen->base.class_3d < NVE4_3D_CLASS &&
> +       nvc0->seamless_cube_map != nvc0->state.seamless_cube_map) {
> +      nvc0->state.seamless_cube_map = nvc0->seamless_cube_map;
> +      PUSH_SPACE(push, 1);
> +      IMMED_NVC0(push, NVC0_3D(TEX_MISC), NVC0_3D_TEX_MISC_SEAMLESS_CUBE_MAP
> +                 * nvc0->seamless_cube_map);
> +   }
> +
>      push->kick_notify = nvc0_draw_vbo_kick_notify;
>
>      for (s = 0; s < 5 && !nvc0->cb_dirty; ++s) {
>


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