softpipe: remove old/unneeded dependencies between TGSI exec and softpipe

Use tgsi_sampler struct as a base class.  Softpipe subclasses it and adds
the fields it needs.

1 files changed, 9 insertions, 14 deletions

diff --git a/src/gallium/drivers/softpipe/sp_quad_fs.c b/src/gallium/drivers/softpipe/sp_quad_fs.c
index 1f0cb3e035..730fa0cf49 100644
--- a/src/gallium/drivers/softpipe/sp_quad_fs.c
+++ b/src/gallium/drivers/softpipe/sp_quad_fs.c
@@ -50,8 +50,9 @@
 
 struct quad_shade_stage
 {
-   struct quad_stage stage;
-   struct tgsi_sampler samplers[PIPE_MAX_SAMPLERS];
+   struct quad_stage stage;  /**< base class */
+   struct sp_shader_sampler samplers[PIPE_MAX_SAMPLERS];
+   struct sp_shader_sampler *samplers_list[PIPE_MAX_SAMPLERS];
    struct tgsi_exec_machine machine;
    struct tgsi_exec_vector *inputs, *outputs;
 };
@@ -147,18 +148,10 @@ static void shade_begin(struct quad_stage *qs)
 {
    struct quad_shade_stage *qss = quad_shade_stage(qs);
    struct softpipe_context *softpipe = qs->softpipe;
-   unsigned i;
-   unsigned num = MAX2(softpipe->num_textures, softpipe->num_samplers);
-
-   /* set TGSI sampler state that varies */
-   for (i = 0; i < num; i++) {
-      qss->samplers[i].state = softpipe->sampler[i];
-      qss->samplers[i].texture = softpipe->texture[i];
-   }
 
    softpipe->fs->prepare( softpipe->fs, 
 			  &qss->machine,
-			  qss->samplers );
+			  qss->samplers_list );
 
    qs->next->begin(qs->next);
 }
@@ -191,12 +184,14 @@ struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe )
    qss->stage.run = shade_quad;
    qss->stage.destroy = shade_destroy;
 
-   /* set TGSI sampler state that's constant */
+   /* setup TGSI sampler state */
    for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
       assert(softpipe->tex_cache[i]);
-      qss->samplers[i].get_samples = sp_get_samples;
-      qss->samplers[i].pipe = &softpipe->pipe;
+      qss->samplers[i].base.get_samples = sp_get_samples;
+      qss->samplers[i].unit = i;
+      qss->samplers[i].sp = softpipe;
       qss->samplers[i].cache = softpipe->tex_cache[i];
+      qss->samplers_list[i] = &qss->samplers[i];
    }
 
    tgsi_exec_machine_init( &qss->machine );