[Mesa-dev] [PATCH 5/7] util/blitter (and friends): generate appropriate SVIEW decls

Rob Clark robdclark at gmail.com
Fri Jun 12 06:47:00 PDT 2015


On Thu, Jun 11, 2015 at 8:36 PM, Roland Scheidegger <sroland at vmware.com> wrote:
> Am 12.06.2015 um 02:02 schrieb Rob Clark:
>> On Thu, Jun 11, 2015 at 5:47 PM, Brian Paul <brianp at vmware.com> wrote:
>>> On 06/11/2015 02:38 PM, Rob Clark wrote:
>>>>
>>>> From: Rob Clark <robclark at freedesktop.org>
>>>>
>>>> Some hardware needs to know the sampler type.  Update the blit related
>>>> shaders to include SVIEW decl.
>>>>
>>>> Signed-off-by: Rob Clark <robclark at freedesktop.org>
>>>> ---
>>>>   src/gallium/auxiliary/util/u_blit.c           | 35 +++++++++---
>>>>   src/gallium/auxiliary/util/u_blitter.c        | 53 +++++++++++++-----
>>>>   src/gallium/auxiliary/util/u_simple_shaders.c | 78
>>>> ++++++++++++++++++++-------
>>>>   src/gallium/auxiliary/util/u_simple_shaders.h | 16 +++---
>>>>   src/gallium/auxiliary/util/u_tests.c          |  3 +-
>>>>   src/gallium/tests/trivial/quad-tex.c          |  2 +-
>>>>   6 files changed, 140 insertions(+), 47 deletions(-)
>>>>
>>>> diff --git a/src/gallium/auxiliary/util/u_blit.c
>>>> b/src/gallium/auxiliary/util/u_blit.c
>>>> index 3f3b5fe..e3f3055 100644
>>>> --- a/src/gallium/auxiliary/util/u_blit.c
>>>> +++ b/src/gallium/auxiliary/util/u_blit.c
>>>> @@ -65,7 +65,7 @@ struct blit_state
>>>>      struct pipe_vertex_element velem[2];
>>>>
>>>>      void *vs;
>>>> -   void *fs[PIPE_MAX_TEXTURE_TYPES][TGSI_WRITEMASK_XYZW + 1];
>>>> +   void *fs[PIPE_MAX_TEXTURE_TYPES][TGSI_WRITEMASK_XYZW + 1][3];
>>>>
>>>>      struct pipe_resource *vbuf;  /**< quad vertices */
>>>>      unsigned vbuf_slot;
>>>> @@ -135,15 +135,17 @@ void
>>>>   util_destroy_blit(struct blit_state *ctx)
>>>>   {
>>>>      struct pipe_context *pipe = ctx->pipe;
>>>> -   unsigned i, j;
>>>> +   unsigned i, j, k;
>>>>
>>>>      if (ctx->vs)
>>>>         pipe->delete_vs_state(pipe, ctx->vs);
>>>>
>>>>      for (i = 0; i < Elements(ctx->fs); i++) {
>>>>         for (j = 0; j < Elements(ctx->fs[i]); j++) {
>>>> -         if (ctx->fs[i][j])
>>>> -            pipe->delete_fs_state(pipe, ctx->fs[i][j]);
>>>> +         for (k = 0; k < Elements(ctx->fs[i][j]); k++) {
>>>> +            if (ctx->fs[i][j][k])
>>>> +               pipe->delete_fs_state(pipe, ctx->fs[i][j][k]);
>>>> +         }
>>>>         }
>>>>      }
>>>>
>>>> @@ -158,18 +160,34 @@ util_destroy_blit(struct blit_state *ctx)
>>>>    */
>>>>   static INLINE void
>>>>   set_fragment_shader(struct blit_state *ctx, uint writemask,
>>>> +                    enum pipe_format format,
>>>>                       enum pipe_texture_target pipe_tex)
>>>>   {
>>>> -   if (!ctx->fs[pipe_tex][writemask]) {
>>>> +   enum tgsi_return_type stype;
>>>> +   unsigned idx;
>>>> +
>>>> +   if (util_format_is_pure_uint(format)) {
>>>> +      stype = TGSI_RETURN_TYPE_UINT;
>>>> +      idx = 0;
>>>> +   } else if (util_format_is_pure_sint(format)) {
>>>> +      stype = TGSI_RETURN_TYPE_SINT;
>>>> +      idx = 1;
>>>> +   } else {
>>>> +      stype = TGSI_RETURN_TYPE_FLOAT;
>>>> +      idx = 2;
>>>> +   }
>>>> +
>>>> +   if (!ctx->fs[pipe_tex][writemask][idx]) {
>>>>         unsigned tgsi_tex = util_pipe_tex_to_tgsi_tex(pipe_tex, 0);
>>>>
>>>> -      ctx->fs[pipe_tex][writemask] =
>>>> +      ctx->fs[pipe_tex][writemask][idx] =
>>>>            util_make_fragment_tex_shader_writemask(ctx->pipe, tgsi_tex,
>>>>
>>>> TGSI_INTERPOLATE_LINEAR,
>>>> -                                                 writemask);
>>>> +                                                 writemask,
>>>> +                                                 stype);
>>>>      }
>>>>
>>>> -   cso_set_fragment_shader_handle(ctx->cso,
>>>> ctx->fs[pipe_tex][writemask]);
>>>> +   cso_set_fragment_shader_handle(ctx->cso,
>>>> ctx->fs[pipe_tex][writemask][idx]);
>>>>   }
>>>>
>>>>
>>>> @@ -571,6 +589,7 @@ util_blit_pixels_tex(struct blit_state *ctx,
>>>>
>>>>      /* shaders */
>>>>      set_fragment_shader(ctx, TGSI_WRITEMASK_XYZW,
>>>> +                       src_sampler_view->format,
>>>>                          src_sampler_view->texture->target);
>>>>      set_vertex_shader(ctx);
>>>>      cso_set_tessctrl_shader_handle(ctx->cso, NULL);
>>>> diff --git a/src/gallium/auxiliary/util/u_blitter.c
>>>> b/src/gallium/auxiliary/util/u_blitter.c
>>>> index 16bf90f..5dfe2c7 100644
>>>> --- a/src/gallium/auxiliary/util/u_blitter.c
>>>> +++ b/src/gallium/auxiliary/util/u_blitter.c
>>>> @@ -81,6 +81,8 @@ struct blitter_context_priv
>>>>      /* FS which outputs a color from a texture,
>>>>         where the index is PIPE_TEXTURE_* to be sampled. */
>>>>      void *fs_texfetch_col[PIPE_MAX_TEXTURE_TYPES];
>>>> +   void *fs_texfetch_col_uint[PIPE_MAX_TEXTURE_TYPES];
>>>> +   void *fs_texfetch_col_sint[PIPE_MAX_TEXTURE_TYPES];
>>>>
>>>>      /* FS which outputs a depth from a texture,
>>>>         where the index is PIPE_TEXTURE_* to be sampled. */
>>>> @@ -90,6 +92,8 @@ struct blitter_context_priv
>>>>
>>>>      /* FS which outputs one sample from a multisample texture. */
>>>>      void *fs_texfetch_col_msaa[PIPE_MAX_TEXTURE_TYPES];
>>>> +   void *fs_texfetch_col_msaa_uint[PIPE_MAX_TEXTURE_TYPES];
>>>> +   void *fs_texfetch_col_msaa_sint[PIPE_MAX_TEXTURE_TYPES];
>>>>      void *fs_texfetch_depth_msaa[PIPE_MAX_TEXTURE_TYPES];
>>>>      void *fs_texfetch_depthstencil_msaa[PIPE_MAX_TEXTURE_TYPES];
>>>>      void *fs_texfetch_stencil_msaa[PIPE_MAX_TEXTURE_TYPES];
>>>> @@ -438,6 +442,10 @@ void util_blitter_destroy(struct blitter_context
>>>> *blitter)
>>>>      for (i = 0; i < PIPE_MAX_TEXTURE_TYPES; i++) {
>>>>         if (ctx->fs_texfetch_col[i])
>>>>            ctx->delete_fs_state(pipe, ctx->fs_texfetch_col[i]);
>>>> +      if (ctx->fs_texfetch_col_sint[i])
>>>> +         ctx->delete_fs_state(pipe, ctx->fs_texfetch_col_sint[i]);
>>>> +      if (ctx->fs_texfetch_col_uint[i])
>>>> +         ctx->delete_fs_state(pipe, ctx->fs_texfetch_col_uint[i]);
>>>>         if (ctx->fs_texfetch_depth[i])
>>>>            ctx->delete_fs_state(pipe, ctx->fs_texfetch_depth[i]);
>>>>         if (ctx->fs_texfetch_depthstencil[i])
>>>> @@ -447,6 +455,10 @@ void util_blitter_destroy(struct blitter_context
>>>> *blitter)
>>>>
>>>>         if (ctx->fs_texfetch_col_msaa[i])
>>>>            ctx->delete_fs_state(pipe, ctx->fs_texfetch_col_msaa[i]);
>>>> +      if (ctx->fs_texfetch_col_msaa_sint[i])
>>>> +         ctx->delete_fs_state(pipe, ctx->fs_texfetch_col_msaa_sint[i]);
>>>> +      if (ctx->fs_texfetch_col_msaa_uint[i])
>>>> +         ctx->delete_fs_state(pipe, ctx->fs_texfetch_col_msaa_uint[i]);
>>>>         if (ctx->fs_texfetch_depth_msaa[i])
>>>>            ctx->delete_fs_state(pipe, ctx->fs_texfetch_depth_msaa[i]);
>>>>         if (ctx->fs_texfetch_depthstencil_msaa[i])
>>>> @@ -844,25 +856,29 @@ static void *blitter_get_fs_texfetch_col(struct
>>>> blitter_context_priv *ctx,
>>>>   {
>>>>      struct pipe_context *pipe = ctx->base.pipe;
>>>>      unsigned tgsi_tex = util_pipe_tex_to_tgsi_tex(target,
>>>> src_nr_samples);
>>>> +   enum tgsi_return_type stype;
>>>>
>>>>      assert(target < PIPE_MAX_TEXTURE_TYPES);
>>>>
>>>> +       if (util_format_is_pure_uint(format))
>>>> +               stype = TGSI_RETURN_TYPE_UINT;
>>>> +       else if (util_format_is_pure_sint(format))
>>>> +               stype = TGSI_RETURN_TYPE_SINT;
>>>> +       else
>>>> +               stype = TGSI_RETURN_TYPE_FLOAT;
>>>> +
>>>
>>>
>>> Need to indent with spaces, not tabs.
>>
>> oh, whoops.. I apparently shouldn't be trying to carry on a
>> conversation while preparing patches.. I'll fix this up locally but I
>> don't think there is any point to resend unless other review
>> comments..
>>
>> that said, I've been trying to find a good way to test the draw module
>> changes (w/ ST_DEBUG=tgsi to verify resulting shader) with llvmpipe
>> (since the hw drivers I have access to don't use draw).. not sure if
>> ST_DEBUG=tgsi is only dumping out the shader before draw modifies it?
>> Or if I'm just not running the right piglit tests..  suggestions
>> welcome
>
> ST_DEBUG=tgsi may indeed be printing out unmodified shaders. You can use
> GALLIVM_DEBUG=tgsi which should print out what is actually compiled (at
> least for llvmpipe). Not sure how you could print them out for softpipe
> - it seems the stages which modify the tokens have their own debug code
> for calling tgsi_dump but it's ifdefed out...
> But there's probably very few tests actually hitting these paths.

Ok, thanks.. the draw stuff seems to be working properly.  I did find
one minor problem with the glsl_to_tgsi, with fix squashed in locally:

---------
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index ce8f2ea..db2e4c8 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -3474,11 +3474,12 @@ count_resources(glsl_to_tgsi_visitor *v,
gl_program *prog)
    foreach_in_list(glsl_to_tgsi_instruction, inst, &v->instructions) {
       if (is_tex_instruction(inst->op)) {
          for (int i = 0; i < inst->sampler_array_size; i++) {
-            v->samplers_used |= 1 << (inst->sampler.index + i);
+            unsigned idx = inst->sampler.index + i;
+            v->samplers_used |= 1 << idx;

-            debug_assert(i < (int)ARRAY_SIZE(v->sampler_types));
-            v->sampler_types[i] = inst->tex_type;
-            v->sampler_targets[i] =
+            debug_assert(idx < (int)ARRAY_SIZE(v->sampler_types));
+            v->sampler_types[idx] = inst->tex_type;
+            v->sampler_targets[idx] =
                st_translate_texture_target(inst->tex_target, inst->tex_shadow);

             if (inst->tex_shadow) {
---------

I can repost the resulting patchset if anyone wants.  In the mean time
I'm doing some piglit runs w/ gl3 force override (to get integer
textures) with freedreno, and once that all looks good, if no one
objects, I'd like to push these over the weekend

BR,
-R


> Roland
>
>
>> BR,
>> -R
>>
>>> -Brian
>>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
>>
>


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