ilo: switch to ilo states for SOL stage

Define and use

 struct ilo_so_state;

in ilo_context.

src/gallium/drivers/ilo/ilo_3d_pipeline.c

@@ -152,11 +152,10 @@ ilo_3d_pipeline_emit_draw(struct ilo_3d_pipeline *p,
                           const struct pipe_draw_info *info,
                           int *prim_generated, int *prim_emitted)
 {
-   const bool so_enabled = (ilo->stream_output_targets.num_targets > 0);
    bool success;
 
    if (ilo->dirty & ILO_DIRTY_STREAM_OUTPUT_TARGETS &&
-       so_enabled && !ilo->stream_output_targets.append_bitmask) {
+       ilo->so.enabled && !ilo->so.append_bitmask) {
       /*
        * We keep track of the SVBI in the driver, so that we can restore it
        * when the HW context is invalidated (by another process).  The value

src/gallium/drivers/ilo/ilo_3d_pipeline_gen6.c

@@ -525,7 +525,7 @@ gen6_pipeline_update_max_svbi(struct ilo_3d_pipeline *p,
       for (i = 0; i < so_info->num_outputs; i++) {
          const int output_buffer = so_info->output[i].output_buffer;
          const struct pipe_stream_output_target *so =
-            ilo->stream_output_targets.targets[output_buffer];
+            ilo->so.states[output_buffer];
          const int struct_size = so_info->stride[output_buffer] * 4;
          const int elem_size = so_info->output[i].num_components * 4;
          int buf_size, count;
@@ -901,9 +901,8 @@ gen6_pipeline_state_surfaces_so(struct ilo_3d_pipeline *p,
    const struct ilo_shader_state *vs = ilo->vs;
    const struct ilo_shader_state *gs = ilo->gs;
    const struct pipe_stream_output_target **so_targets =
-      (const struct pipe_stream_output_target **)
-      ilo->stream_output_targets.targets;
-   const int num_so_targets = ilo->stream_output_targets.num_targets;
+      (const struct pipe_stream_output_target **) ilo->so.states;
+   const int num_so_targets = ilo->so.count;
 
    if (p->dev->gen != ILO_GEN(6))
       return;

src/gallium/drivers/ilo/ilo_3d_pipeline_gen7.c

@@ -394,11 +394,10 @@ gen7_pipeline_sol(struct ilo_3d_pipeline *p,
    gen6_pipeline_update_max_svbi(p, ilo, session);
 
    /* 3DSTATE_SO_BUFFER */
-   if ((DIRTY(STREAM_OUTPUT_TARGETS) || dirty_sh) &&
-       ilo->stream_output_targets.num_targets) {
+   if ((DIRTY(STREAM_OUTPUT_TARGETS) || dirty_sh) && ilo->so.enabled) {
       int i;
 
-      for (i = 0; i < ilo->stream_output_targets.num_targets; i++) {
+      for (i = 0; i < ilo->so.count; i++) {
          const int stride = so_info->stride[i] * 4; /* in bytes */
          int base = 0;
 
@@ -409,7 +408,7 @@ gen7_pipeline_sol(struct ilo_3d_pipeline *p,
          }
 
          p->gen7_3DSTATE_SO_BUFFER(p->dev, i, base, stride,
-               ilo->stream_output_targets.targets[i], p->cp);
+               ilo->so.states[i], p->cp);
       }
 
       for (; i < 4; i++)
@@ -417,13 +416,12 @@ gen7_pipeline_sol(struct ilo_3d_pipeline *p,
    }
 
    /* 3DSTATE_SO_DECL_LIST */
-   if (dirty_sh && ilo->stream_output_targets.num_targets)
+   if (dirty_sh && ilo->so.enabled)
       p->gen7_3DSTATE_SO_DECL_LIST(p->dev, so_info, sh, p->cp);
 
    /* 3DSTATE_STREAMOUT */
    if (DIRTY(STREAM_OUTPUT_TARGETS) || DIRTY(RASTERIZER) || dirty_sh) {
-      const unsigned buffer_mask =
-         (1 << ilo->stream_output_targets.num_targets) - 1;
+      const unsigned buffer_mask = (1 << ilo->so.count) - 1;
 
       p->gen7_3DSTATE_STREAMOUT(p->dev, buffer_mask, sh->out.count,
             ilo->rasterizer->rasterizer_discard, p->cp);

src/gallium/drivers/ilo/ilo_blit.c

@@ -546,9 +546,7 @@ ilo_blitter_begin(struct ilo_context *ilo, enum ilo_blitter_op op)
    util_blitter_save_vertex_elements(ilo->blitter, (void *) ilo->ve);
    util_blitter_save_vertex_shader(ilo->blitter, ilo->vs);
    util_blitter_save_geometry_shader(ilo->blitter, ilo->gs);
-   util_blitter_save_so_targets(ilo->blitter,
-         ilo->stream_output_targets.num_targets,
-         ilo->stream_output_targets.targets);
+   util_blitter_save_so_targets(ilo->blitter, ilo->so.count, ilo->so.states);
 
    util_blitter_save_fragment_shader(ilo->blitter, ilo->fs);
    util_blitter_save_depth_stencil_alpha(ilo->blitter,

src/gallium/drivers/ilo/ilo_context.h

@@ -60,6 +60,8 @@ struct ilo_context {
    const struct ilo_ve_state *ve;
    struct ilo_ib_state ib;
 
+   struct ilo_so_state so;
+
    struct pipe_blend_state *blend;
    struct pipe_rasterizer_state *rasterizer;
    struct pipe_depth_stencil_alpha_state *depth_stencil_alpha;
@@ -91,12 +93,6 @@ struct ilo_context {
       unsigned num_buffers;
    } constant_buffers[PIPE_SHADER_TYPES];
 
-   struct {
-      struct pipe_stream_output_target *targets[ILO_MAX_SO_BUFFERS];
-      unsigned num_targets;
-      unsigned append_bitmask;
-   } stream_output_targets;
-
    struct {
       struct pipe_surface *surfaces[PIPE_MAX_SHADER_RESOURCES];
       unsigned num_surfaces;

src/gallium/drivers/ilo/ilo_gpe.h

@@ -66,4 +66,12 @@ struct ilo_ve_state {
    unsigned count;
 };
 
+struct ilo_so_state {
+   struct pipe_stream_output_target *states[ILO_MAX_SO_BUFFERS];
+   unsigned count;
+   unsigned append_bitmask;
+
+   bool enabled;
+};
+
 #endif /* ILO_GPE_H */

src/gallium/drivers/ilo/ilo_state.c

@@ -785,15 +785,16 @@ ilo_set_stream_output_targets(struct pipe_context *pipe,
    if (!targets)
       num_targets = 0;
 
-   for (i = 0; i < num_targets; i++) {
-      pipe_so_target_reference(&ilo->stream_output_targets.targets[i],
-                               targets[i]);
-   }
-   for (; i < ilo->stream_output_targets.num_targets; i++)
-      pipe_so_target_reference(&ilo->stream_output_targets.targets[i], NULL);
+   for (i = 0; i < num_targets; i++)
+      pipe_so_target_reference(&ilo->so.states[i], targets[i]);
 
-   ilo->stream_output_targets.num_targets = num_targets;
-   ilo->stream_output_targets.append_bitmask = append_bitmask;
+   for (; i < ilo->so.count; i++)
+      pipe_so_target_reference(&ilo->so.states[i], NULL);
+
+   ilo->so.count = num_targets;
+   ilo->so.append_bitmask = append_bitmask;
+
+   ilo->so.enabled = (ilo->so.count > 0);
 
    ilo->dirty |= ILO_DIRTY_STREAM_OUTPUT_TARGETS;
 }