gallium: clean up point sprite rasterizer state

Don't need sprite coord origin per coord.
Also, don't need separate sprite enable bit - if all coords have it diabled,
then there are no point sprites (technically, there's a distinction in pre-GL3,
but it only differs in having more leniency in clamping to max size, something
the state tracker would need to handle and the hardware won't bother anyway).
Also, use packed field for the per-coord enables.
All in all, should save 3 dwords in rasterizer state (from 10 down to 7).

2 files changed, 12 insertions, 10 deletions

diff --git a/src/gallium/auxiliary/draw/draw_pipe_validate.c b/src/gallium/auxiliary/draw/draw_pipe_validate.c
index bea90e50d3..ac29634d67 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_validate.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_validate.c
@@ -105,7 +105,7 @@ draw_need_pipeline(const struct draw_context *draw,
          return TRUE;
 
       /* point sprites */
-      if (rasterizer->point_sprite && draw->pipeline.point_sprite)
+      if (rasterizer->sprite_coord_enable && draw->pipeline.point_sprite)
          return TRUE;
    }
 
@@ -165,7 +165,7 @@ static struct draw_stage *validate_pipeline( struct draw_stage *stage )
                  && !draw->rasterizer->line_smooth);
 
    /* drawing large points? */
-   if (draw->rasterizer->point_sprite && draw->pipeline.point_sprite)
+   if (draw->rasterizer->sprite_coord_enable && draw->pipeline.point_sprite)
       wide_points = TRUE;
    else if (draw->rasterizer->point_smooth && draw->pipeline.aapoint)
       wide_points = FALSE;
@@ -197,7 +197,7 @@ static struct draw_stage *validate_pipeline( struct draw_stage *stage )
       precalc_flat = 1;
    }
 
-   if (wide_points || draw->rasterizer->point_sprite) {
+   if (wide_points || draw->rasterizer->sprite_coord_enable) {
       draw->pipeline.wide_point->next = next;
       next = draw->pipeline.wide_point;
    }
diff --git a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
index f723e658e1..d9d4d2a8b6 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c
@@ -69,8 +69,9 @@ struct widepoint_stage {
    float ybias;
 
    uint texcoord_slot[PIPE_MAX_SHADER_OUTPUTS];
-   uint texcoord_mode[PIPE_MAX_SHADER_OUTPUTS];
+   uint texcoord_enable[PIPE_MAX_SHADER_OUTPUTS];
    uint num_texcoords;
+   uint texcoord_mode;
 
    int psize_slot;
 
@@ -96,10 +97,10 @@ static void set_texcoords(const struct widepoint_stage *wide,
 {
    uint i;
    for (i = 0; i < wide->num_texcoords; i++) {
-      if (wide->texcoord_mode[i] != PIPE_SPRITE_COORD_NONE) {
+      if (wide->texcoord_enable[i]) {
          uint j = wide->texcoord_slot[i];
          v->data[j][0] = tc[0];
-         if (wide->texcoord_mode[i] == PIPE_SPRITE_COORD_LOWER_LEFT)
+         if (wide->texcoord_mode == PIPE_SPRITE_COORD_LOWER_LEFT)
             v->data[j][1] = 1.0f - tc[1];
          else
             v->data[j][1] = tc[1];
@@ -129,7 +130,7 @@ static void widepoint_point( struct draw_stage *stage,
 {
    const struct widepoint_stage *wide = widepoint_stage(stage);
    const unsigned pos = draw_current_shader_position_output(stage->draw);
-   const boolean sprite = (boolean) stage->draw->rasterizer->point_sprite;
+   const boolean sprite = (boolean) stage->draw->rasterizer->sprite_coord_enable;
    float half_size;
    float left_adj, right_adj, bot_adj, top_adj;
 
@@ -222,21 +223,22 @@ static void widepoint_first_point( struct draw_stage *stage,
 
    /* XXX we won't know the real size if it's computed by the vertex shader! */
    if ((draw->rasterizer->point_size > draw->pipeline.wide_point_threshold) ||
-       (draw->rasterizer->point_sprite && draw->pipeline.point_sprite)) {
+       (draw->rasterizer->sprite_coord_enable && draw->pipeline.point_sprite)) {
       stage->point = widepoint_point;
    }
    else {
       stage->point = draw_pipe_passthrough_point;
    }
 
-   if (draw->rasterizer->point_sprite) {
+   if (draw->rasterizer->sprite_coord_enable) {
       /* find vertex shader texcoord outputs */
       const struct draw_vertex_shader *vs = draw->vs.vertex_shader;
       uint i, j = 0;
+      wide->texcoord_mode = draw->rasterizer->sprite_coord_mode;
       for (i = 0; i < vs->info.num_outputs; i++) {
          if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_GENERIC) {
             wide->texcoord_slot[j] = i;
-            wide->texcoord_mode[j] = draw->rasterizer->sprite_coord_mode[j];
+            wide->texcoord_enable[j] = (draw->rasterizer->sprite_coord_enable >> j) & 1;
             j++;
          }
       }