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

Ilia Mirkin imirkin at alum.mit.edu
Sun Feb 14 23:45:25 UTC 2016


On Sun, Feb 14, 2016 at 6:23 PM, Samuel Pitoiset
<samuel.pitoiset at gmail.com> wrote:
>
>
> 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?

0 = none of the bits are turned on... I don't think that really
requires extra documentation...

>
>
>>      }
>>
>>      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
> ?

bleh, extra characters, how I hate them... I think * bool is a
reasonably common pattern, no?

>
> 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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