softpipe/draw/tgsi: simplify driver/tgsi sampler interface

Use a single sampler adapter instead of per-sampler-unit samplers,
and just pass along texture unit and sampler unit in the calls.
The reason is that for dx10-style sample opcodes pre-wired
samplers including all the texture state aren't really feasible (and for
sample_i/sviewinfo we don't even have samplers).
Of course right now softpipe doesn't actually do anything more than
just look up all its pre-wired per-texunit/per-samplerunit sampler as
it did before so this doesn't really achieve much except one more
function call, however this is now all softpipe's fault (fixing that in
a way which doesn't suck is still an unsolved problem).

Reviewed-by: Jose Fonseca <[email protected]>

5 files changed, 12 insertions, 20 deletions

diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c
index 045bb6b2ae8..6b70ac88be6 100644
--- a/src/gallium/auxiliary/draw/draw_context.c
+++ b/src/gallium/auxiliary/draw/draw_context.c
@@ -581,18 +581,15 @@ draw_num_shader_outputs(const struct draw_context *draw)
  * This might only be used by software drivers for the time being.
  */
 void
-draw_texture_samplers(struct draw_context *draw,
-                      uint shader,
-                      uint num_samplers,
-                      struct tgsi_sampler **samplers)
+draw_texture_sampler(struct draw_context *draw,
+                     uint shader,
+                     struct tgsi_sampler *sampler)
 {
    if (shader == PIPE_SHADER_VERTEX) {
-      draw->vs.tgsi.num_samplers = num_samplers;
-      draw->vs.tgsi.samplers = samplers;
+      draw->vs.tgsi.sampler = sampler;
    } else {
       debug_assert(shader == PIPE_SHADER_GEOMETRY);
-      draw->gs.tgsi.num_samplers = num_samplers;
-      draw->gs.tgsi.samplers = samplers;
+      draw->gs.tgsi.sampler = sampler;
    }
 }
 
diff --git a/src/gallium/auxiliary/draw/draw_context.h b/src/gallium/auxiliary/draw/draw_context.h
index e8e2d9487b3..18c8595f8cf 100644
--- a/src/gallium/auxiliary/draw/draw_context.h
+++ b/src/gallium/auxiliary/draw/draw_context.h
@@ -132,10 +132,9 @@ draw_num_shader_outputs(const struct draw_context *draw);
 
 
 void
-draw_texture_samplers(struct draw_context *draw,
-                      uint shader_type,
-                      uint num_samplers,
-                      struct tgsi_sampler **samplers);
+draw_texture_sampler(struct draw_context *draw,
+                     uint shader_type,
+                     struct tgsi_sampler *sampler);
 
 void
 draw_set_sampler_views(struct draw_context *draw,
diff --git a/src/gallium/auxiliary/draw/draw_gs.c b/src/gallium/auxiliary/draw/draw_gs.c
index 5c5552394e8..25c117bafae 100644
--- a/src/gallium/auxiliary/draw/draw_gs.c
+++ b/src/gallium/auxiliary/draw/draw_gs.c
@@ -465,7 +465,6 @@ void draw_geometry_shader_prepare(struct draw_geometry_shader *shader,
    if (shader && shader->machine->Tokens != shader->state.tokens) {
       tgsi_exec_machine_bind_shader(shader->machine,
                                     shader->state.tokens,
-                                    draw->gs.tgsi.num_samplers,
-                                    draw->gs.tgsi.samplers);
+                                    draw->gs.tgsi.sampler);
    }
 }
diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h
index ec5791cbc17..5063c3c8f64 100644
--- a/src/gallium/auxiliary/draw/draw_private.h
+++ b/src/gallium/auxiliary/draw/draw_private.h
@@ -248,8 +248,7 @@ struct draw_context
       struct {
          struct tgsi_exec_machine *machine;
 
-         struct tgsi_sampler **samplers;
-         uint num_samplers;
+         struct tgsi_sampler *sampler;
       } tgsi;
 
       struct translate *fetch;
@@ -268,8 +267,7 @@ struct draw_context
       struct {
          struct tgsi_exec_machine *machine;
 
-         struct tgsi_sampler **samplers;
-         uint num_samplers;
+         struct tgsi_sampler *sampler;
       } tgsi;
 
    } gs;
diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c
index 828a155d716..610039498a3 100644
--- a/src/gallium/auxiliary/draw/draw_vs_exec.c
+++ b/src/gallium/auxiliary/draw/draw_vs_exec.c
@@ -69,8 +69,7 @@ vs_exec_prepare( struct draw_vertex_shader *shader,
    if (evs->machine->Tokens != shader->state.tokens) {
       tgsi_exec_machine_bind_shader(evs->machine,
                                     shader->state.tokens,
-                                    draw->vs.tgsi.num_samplers,
-                                    draw->vs.tgsi.samplers);
+                                    draw->vs.tgsi.sampler);
    }
 }