ilo: hook up pipe context state functions

1 files changed, 983 insertions, 60 deletions

diff --git a/src/gallium/drivers/ilo/ilo_state.c b/src/gallium/drivers/ilo/ilo_state.c
index 0d98cad80b6..8443a2cc9d2 100644
--- a/src/gallium/drivers/ilo/ilo_state.c
+++ b/src/gallium/drivers/ilo/ilo_state.c
@@ -25,73 +25,996 @@
  *    Chia-I Wu <[email protected]>
  */
 
+#include "util/u_framebuffer.h"
+#include "util/u_helpers.h"
+
 #include "ilo_context.h"
+#include "ilo_shader.h"
 #include "ilo_state.h"
 
+/*
+ * We simply remember the pipe states here and derive HW commands/states from
+ * them later.  We could do better by deriving (some of the) HW
+ * commands/states directly.
+ */
+
+static void
+finalize_shader_states(struct ilo_context *ilo)
+{
+   /* this table is ugly and is a burden to maintain.. */
+   const struct {
+      struct ilo_shader_state *state;
+      struct ilo_shader *prev_shader;
+      uint32_t prev_cache_seqno;
+      uint32_t dirty;
+      uint32_t deps;
+   } sh[PIPE_SHADER_TYPES] = {
+      [PIPE_SHADER_VERTEX] = {
+         .state = ilo->vs,
+         .prev_shader = (ilo->vs) ? ilo->vs->shader : NULL,
+         .prev_cache_seqno = (ilo->vs) ? ilo->vs->shader->cache_seqno : 0,
+         .dirty = ILO_DIRTY_VS,
+         .deps = ILO_DIRTY_VERTEX_SAMPLER_VIEWS |
+                 ILO_DIRTY_RASTERIZER,
+      },
+      [PIPE_SHADER_FRAGMENT] = {
+         .state = ilo->fs,
+         .prev_shader = (ilo->fs) ? ilo->fs->shader : NULL,
+         .prev_cache_seqno = (ilo->fs) ? ilo->fs->shader->cache_seqno : 0,
+         .dirty = ILO_DIRTY_FS,
+         .deps = ILO_DIRTY_FRAGMENT_SAMPLER_VIEWS |
+                 ILO_DIRTY_RASTERIZER |
+                 ILO_DIRTY_FRAMEBUFFER,
+      },
+      [PIPE_SHADER_GEOMETRY] = {
+         .state = ilo->gs,
+         .prev_shader = (ilo->gs) ? ilo->gs->shader : NULL,
+         .prev_cache_seqno = (ilo->gs) ? ilo->gs->shader->cache_seqno : 0,
+         .dirty = ILO_DIRTY_GS,
+         .deps = ILO_DIRTY_GEOMETRY_SAMPLER_VIEWS |
+                 ILO_DIRTY_VS |
+                 ILO_DIRTY_RASTERIZER,
+      },
+      [PIPE_SHADER_COMPUTE] = {
+         .state = NULL,
+         .prev_shader = NULL,
+         .prev_cache_seqno = 0,
+         .dirty = 0,
+         .deps = 0,
+      },
+   };
+   struct ilo_shader *shaders[PIPE_SHADER_TYPES];
+   int num_shaders = 0, i;
+
+   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
+      /* no state bound */
+      if (!sh[i].state)
+         continue;
+
+      /* switch variant if the shader or the states it depends on changed */
+      if (ilo->dirty & (sh[i].dirty | sh[i].deps)) {
+         struct ilo_shader_variant variant;
+
+         ilo_shader_variant_init(&variant, &sh[i].state->info, ilo);
+         ilo_shader_state_use_variant(sh[i].state, &variant);
+      }
+
+      shaders[num_shaders++] = sh[i].state->shader;
+   }
+
+   ilo_shader_cache_set(ilo->shader_cache, shaders, num_shaders);
+
+   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
+      /* no state bound */
+      if (!sh[i].state)
+         continue;
+
+      /*
+       * mark the shader state dirty if
+       *
+       *  - a new variant is selected, or
+       *  - the kernel is uploaded to a different bo
+       */
+      if (sh[i].state->shader != sh[i].prev_shader ||
+          sh[i].state->shader->cache_seqno != sh[i].prev_cache_seqno)
+         ilo->dirty |= sh[i].dirty;
+   }
+}
+
+static void
+finalize_constant_buffers(struct ilo_context *ilo)
+{
+   int sh;
+
+   if (!(ilo->dirty & ILO_DIRTY_CONSTANT_BUFFER))
+      return;
+
+   for (sh = 0; sh < PIPE_SHADER_TYPES; sh++) {
+      int last_cbuf = Elements(ilo->constant_buffers[sh].buffers) - 1;
+
+      /* find the last cbuf */
+      while (last_cbuf >= 0 &&
+             !ilo->constant_buffers[sh].buffers[last_cbuf].buffer)
+         last_cbuf--;
+
+      ilo->constant_buffers[sh].num_buffers = last_cbuf + 1;
+   }
+}
+
+/**
+ * Finalize states.  Some states depend on other states and are
+ * incomplete/invalid until finalized.
+ */
+void
+ilo_finalize_states(struct ilo_context *ilo)
+{
+   finalize_shader_states(ilo);
+   finalize_constant_buffers(ilo);
+}
+
+static void *
+ilo_create_blend_state(struct pipe_context *pipe,
+                       const struct pipe_blend_state *state)
+{
+   struct pipe_blend_state *blend;
+
+   blend = MALLOC_STRUCT(pipe_blend_state);
+   assert(blend);
+
+   *blend = *state;
+
+   return blend;
+}
+
+static void
+ilo_bind_blend_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->blend = state;
+
+   ilo->dirty |= ILO_DIRTY_BLEND;
+}
+
+static void
+ilo_delete_blend_state(struct pipe_context *pipe, void  *state)
+{
+   FREE(state);
+}
+
+static void *
+ilo_create_sampler_state(struct pipe_context *pipe,
+                         const struct pipe_sampler_state *state)
+{
+   struct pipe_sampler_state *sampler;
+
+   sampler = MALLOC_STRUCT(pipe_sampler_state);
+   assert(sampler);
+
+   *sampler = *state;
+
+   return sampler;
+}
+
+static void
+bind_samplers(struct ilo_context *ilo,
+              unsigned shader, unsigned start, unsigned count,
+              void **samplers, bool unbind_old)
+{
+   struct pipe_sampler_state **dst = ilo->samplers[shader].samplers;
+   unsigned i;
+
+   assert(start + count <= Elements(ilo->samplers[shader].samplers));
+
+   if (unbind_old) {
+      if (!samplers) {
+         start = 0;
+         count = 0;
+      }
+
+      for (i = 0; i < start; i++)
+         dst[i] = NULL;
+      for (; i < start + count; i++)
+         dst[i] = samplers[i - start];
+      for (; i < ilo->samplers[shader].num_samplers; i++)
+         dst[i] = NULL;
+
+      ilo->samplers[shader].num_samplers = start + count;
+
+      return;
+   }
+
+   dst += start;
+   if (samplers) {
+      for (i = 0; i < count; i++)
+         dst[i] = samplers[i];
+   }
+   else {
+      for (i = 0; i < count; i++)
+         dst[i] = NULL;
+   }
+
+   if (ilo->samplers[shader].num_samplers <= start + count) {
+      count += start;
+
+      while (count > 0 && !ilo->samplers[shader].samplers[count - 1])
+         count--;
+
+      ilo->samplers[shader].num_samplers = count;
+   }
+}
+
+static void
+ilo_bind_fragment_sampler_states(struct pipe_context *pipe,
+                                 unsigned num_samplers,
+                                 void **samplers)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   bind_samplers(ilo, PIPE_SHADER_FRAGMENT, 0, num_samplers, samplers, true);
+   ilo->dirty |= ILO_DIRTY_FRAGMENT_SAMPLERS;
+}
+
+static void
+ilo_bind_vertex_sampler_states(struct pipe_context *pipe,
+                               unsigned num_samplers,
+                               void **samplers)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   bind_samplers(ilo, PIPE_SHADER_VERTEX, 0, num_samplers, samplers, true);
+   ilo->dirty |= ILO_DIRTY_VERTEX_SAMPLERS;
+}
+
+static void
+ilo_bind_geometry_sampler_states(struct pipe_context *pipe,
+                                 unsigned num_samplers,
+                                 void **samplers)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   bind_samplers(ilo, PIPE_SHADER_GEOMETRY, 0, num_samplers, samplers, true);
+   ilo->dirty |= ILO_DIRTY_GEOMETRY_SAMPLERS;
+}
+
+static void
+ilo_bind_compute_sampler_states(struct pipe_context *pipe,
+                                unsigned start_slot,
+                                unsigned num_samplers,
+                                void **samplers)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   bind_samplers(ilo, PIPE_SHADER_COMPUTE,
+         start_slot, num_samplers, samplers, false);
+   ilo->dirty |= ILO_DIRTY_COMPUTE_SAMPLERS;
+}
+
+static void
+ilo_delete_sampler_state(struct pipe_context *pipe, void *state)
+{
+   FREE(state);
+}
+
+static void *
+ilo_create_rasterizer_state(struct pipe_context *pipe,
+                            const struct pipe_rasterizer_state *state)
+{
+   struct pipe_rasterizer_state *rast;
+
+   rast = MALLOC_STRUCT(pipe_rasterizer_state);
+   assert(rast);
+
+   *rast = *state;
+
+   return rast;
+}
+
+static void
+ilo_bind_rasterizer_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->rasterizer = state;
+
+   ilo->dirty |= ILO_DIRTY_RASTERIZER;
+}
+
+static void
+ilo_delete_rasterizer_state(struct pipe_context *pipe, void *state)
+{
+   FREE(state);
+}
+
+static void *
+ilo_create_depth_stencil_alpha_state(struct pipe_context *pipe,
+                                     const struct pipe_depth_stencil_alpha_state *state)
+{
+   struct pipe_depth_stencil_alpha_state *dsa;
+
+   dsa = MALLOC_STRUCT(pipe_depth_stencil_alpha_state);
+   assert(dsa);
+
+   *dsa = *state;
+
+   return dsa;
+}
+
+static void
+ilo_bind_depth_stencil_alpha_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->depth_stencil_alpha = state;
+
+   ilo->dirty |= ILO_DIRTY_DEPTH_STENCIL_ALPHA;
+}
+
+static void
+ilo_delete_depth_stencil_alpha_state(struct pipe_context *pipe, void *state)
+{
+   FREE(state);
+}
+
+static void *
+ilo_create_fs_state(struct pipe_context *pipe,
+                    const struct pipe_shader_state *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   return ilo_shader_state_create(ilo, PIPE_SHADER_FRAGMENT, state);
+}
+
+static void
+ilo_bind_fs_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->fs = state;
+
+   ilo->dirty |= ILO_DIRTY_FS;
+}
+
+static void
+ilo_delete_fs_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_shader_state *fs = (struct ilo_shader_state *) state;
+   ilo_shader_state_destroy(fs);
+}
+
+static void *
+ilo_create_vs_state(struct pipe_context *pipe,
+                    const struct pipe_shader_state *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   return ilo_shader_state_create(ilo, PIPE_SHADER_VERTEX, state);
+}
+
+static void
+ilo_bind_vs_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->vs = state;
+
+   ilo->dirty |= ILO_DIRTY_VS;
+}
+
+static void
+ilo_delete_vs_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_shader_state *vs = (struct ilo_shader_state *) state;
+   ilo_shader_state_destroy(vs);
+}
+
+static void *
+ilo_create_gs_state(struct pipe_context *pipe,
+                    const struct pipe_shader_state *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   return ilo_shader_state_create(ilo, PIPE_SHADER_GEOMETRY, state);
+}
+
+static void
+ilo_bind_gs_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->gs = state;
+
+   ilo->dirty |= ILO_DIRTY_GS;
+}
+
+static void
+ilo_delete_gs_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_shader_state *gs = (struct ilo_shader_state *) state;
+   ilo_shader_state_destroy(gs);
+}
+
+static void *
+ilo_create_vertex_elements_state(struct pipe_context *pipe,
+                                 unsigned num_elements,
+                                 const struct pipe_vertex_element *elements)
+{
+   struct ilo_vertex_element *velem;
+
+   velem = MALLOC_STRUCT(ilo_vertex_element);
+   assert(velem);
+
+   memcpy(velem->elements, elements, sizeof(*elements) * num_elements);
+   velem->num_elements = num_elements;
+
+   return velem;
+}
+
+static void
+ilo_bind_vertex_elements_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->vertex_elements = state;
+
+   ilo->dirty |= ILO_DIRTY_VERTEX_ELEMENTS;
+}
+
+static void
+ilo_delete_vertex_elements_state(struct pipe_context *pipe, void *state)
+{
+   FREE(state);
+}
+
+static void
+ilo_set_blend_color(struct pipe_context *pipe,
+                    const struct pipe_blend_color *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->blend_color = *state;
+
+   ilo->dirty |= ILO_DIRTY_BLEND_COLOR;
+}
+
+static void
+ilo_set_stencil_ref(struct pipe_context *pipe,
+                    const struct pipe_stencil_ref *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->stencil_ref = *state;
+
+   ilo->dirty |= ILO_DIRTY_STENCIL_REF;
+}
+
+static void
+ilo_set_sample_mask(struct pipe_context *pipe,
+                    unsigned sample_mask)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->sample_mask = sample_mask;
+
+   ilo->dirty |= ILO_DIRTY_SAMPLE_MASK;
+}
+
+static void
+ilo_set_clip_state(struct pipe_context *pipe,
+                   const struct pipe_clip_state *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->clip = *state;
+
+   ilo->dirty |= ILO_DIRTY_CLIP;
+}
+
+static void
+ilo_set_constant_buffer(struct pipe_context *pipe,
+                        uint shader, uint index,
+                        struct pipe_constant_buffer *buf)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   struct pipe_constant_buffer *cbuf;
+
+   assert(shader < Elements(ilo->constant_buffers));
+   assert(index < Elements(ilo->constant_buffers[shader].buffers));
+
+   cbuf = &ilo->constant_buffers[shader].buffers[index];
+
+   pipe_resource_reference(&cbuf->buffer, NULL);
+
+   if (buf) {
+      pipe_resource_reference(&cbuf->buffer, buf->buffer);
+      cbuf->buffer_offset = buf->buffer_offset;
+      cbuf->buffer_size = buf->buffer_size;
+      cbuf->user_buffer = buf->user_buffer;
+   }
+   else {
+      cbuf->buffer_offset = 0;
+      cbuf->buffer_size = 0;
+      cbuf->user_buffer = 0;
+   }
+
+   /* the correct value will be set in ilo_finalize_states() */
+   ilo->constant_buffers[shader].num_buffers = 0;
+
+   ilo->dirty |= ILO_DIRTY_CONSTANT_BUFFER;
+}
+
+static void
+ilo_set_framebuffer_state(struct pipe_context *pipe,
+                          const struct pipe_framebuffer_state *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   util_copy_framebuffer_state(&ilo->framebuffer, state);
+
+   ilo->dirty |= ILO_DIRTY_FRAMEBUFFER;
+}
+
+static void
+ilo_set_polygon_stipple(struct pipe_context *pipe,
+                        const struct pipe_poly_stipple *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->poly_stipple = *state;
+
+   ilo->dirty |= ILO_DIRTY_POLY_STIPPLE;
+}
+
+static void
+ilo_set_scissor_state(struct pipe_context *pipe,
+                      const struct pipe_scissor_state *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->scissor = *state;
+
+   ilo->dirty |= ILO_DIRTY_SCISSOR;
+}
+
+static void
+ilo_set_viewport_state(struct pipe_context *pipe,
+                       const struct pipe_viewport_state *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->viewport = *state;
+
+   ilo->dirty |= ILO_DIRTY_VIEWPORT;
+}
+
+static void
+set_sampler_views(struct ilo_context *ilo,
+                  unsigned shader, unsigned start, unsigned count,
+                  struct pipe_sampler_view **views, bool unset_old)
+{
+   struct pipe_sampler_view **dst = ilo->sampler_views[shader].views;
+   unsigned i;
+
+   assert(start + count <= Elements(ilo->sampler_views[shader].views));
+
+   if (unset_old) {
+      if (!views) {
+         start = 0;
+         count = 0;
+      }
+
+      for (i = 0; i < start; i++)
+         pipe_sampler_view_reference(&dst[i], NULL);
+      for (; i < start + count; i++)
+         pipe_sampler_view_reference(&dst[i], views[i - start]);
+      for (; i < ilo->sampler_views[shader].num_views; i++)
+         pipe_sampler_view_reference(&dst[i], NULL);
+
+      ilo->sampler_views[shader].num_views = start + count;
+
+      return;
+   }
+
+   dst += start;
+   if (views) {
+      for (i = 0; i < count; i++)
+         pipe_sampler_view_reference(&dst[i], views[i]);
+   }
+   else {
+      for (i = 0; i < count; i++)
+         pipe_sampler_view_reference(&dst[i], NULL);
+   }
+
+   if (ilo->sampler_views[shader].num_views <= start + count) {
+      count += start;
+
+      while (count > 0 && !ilo->sampler_views[shader].views[count - 1])
+         count--;
+
+      ilo->sampler_views[shader].num_views = count;
+   }
+}
+
+static void
+ilo_set_fragment_sampler_views(struct pipe_context *pipe,
+                               unsigned num_views,
+                               struct pipe_sampler_view **views)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   set_sampler_views(ilo, PIPE_SHADER_FRAGMENT, 0, num_views, views, true);
+   ilo->dirty |= ILO_DIRTY_FRAGMENT_SAMPLER_VIEWS;
+}
+
+static void
+ilo_set_vertex_sampler_views(struct pipe_context *pipe,
+                             unsigned num_views,
+                             struct pipe_sampler_view **views)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   set_sampler_views(ilo, PIPE_SHADER_VERTEX, 0, num_views, views, true);
+   ilo->dirty |= ILO_DIRTY_VERTEX_SAMPLER_VIEWS;
+}
+
+static void
+ilo_set_geometry_sampler_views(struct pipe_context *pipe,
+                               unsigned num_views,
+                               struct pipe_sampler_view **views)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   set_sampler_views(ilo, PIPE_SHADER_GEOMETRY, 0, num_views, views, true);
+   ilo->dirty |= ILO_DIRTY_GEOMETRY_SAMPLER_VIEWS;
+}
+
+static void
+ilo_set_compute_sampler_views(struct pipe_context *pipe,
+                              unsigned start_slot, unsigned num_views,
+                              struct pipe_sampler_view **views)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   set_sampler_views(ilo, PIPE_SHADER_COMPUTE,
+         start_slot, num_views, views, false);
+
+   ilo->dirty |= ILO_DIRTY_COMPUTE_SAMPLER_VIEWS;
+}
+
+static void
+ilo_set_shader_resources(struct pipe_context *pipe,
+                         unsigned start, unsigned count,
+                         struct pipe_surface **surfaces)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   struct pipe_surface **dst = ilo->shader_resources.surfaces;
+   unsigned i;
+
+   assert(start + count <= Elements(ilo->shader_resources.surfaces));
+
+   dst += start;
+   if (surfaces) {
+      for (i = 0; i < count; i++)
+         pipe_surface_reference(&dst[i], surfaces[i]);
+   }
+   else {
+      for (i = 0; i < count; i++)
+         pipe_surface_reference(&dst[i], NULL);
+   }
+
+   if (ilo->shader_resources.num_surfaces <= start + count) {
+      count += start;
+
+      while (count > 0 && !ilo->shader_resources.surfaces[count - 1])
+         count--;
+
+      ilo->shader_resources.num_surfaces = count;
+   }
+
+   ilo->dirty |= ILO_DIRTY_SHADER_RESOURCES;
+}
+
+static void
+ilo_set_vertex_buffers(struct pipe_context *pipe,
+                       unsigned start_slot, unsigned num_buffers,
+                       const struct pipe_vertex_buffer *buffers)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   util_set_vertex_buffers_count(ilo->vertex_buffers.buffers,
+         &ilo->vertex_buffers.num_buffers, buffers, start_slot, num_buffers);
+
+   ilo->dirty |= ILO_DIRTY_VERTEX_BUFFERS;
+}
+
+static void
+ilo_set_index_buffer(struct pipe_context *pipe,
+                     const struct pipe_index_buffer *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   if (state) {
+      ilo->index_buffer.index_size = state->index_size;
+      ilo->index_buffer.offset = state->offset;
+      pipe_resource_reference(&ilo->index_buffer.buffer, state->buffer);
+      ilo->index_buffer.user_buffer = state->user_buffer;
+   }
+   else {
+      ilo->index_buffer.index_size = 0;
+      ilo->index_buffer.offset = 0;
+      pipe_resource_reference(&ilo->index_buffer.buffer, NULL);
+      ilo->index_buffer.user_buffer = NULL;
+   }
+
+   ilo->dirty |= ILO_DIRTY_INDEX_BUFFER;
+}
+
+static struct pipe_stream_output_target *
+ilo_create_stream_output_target(struct pipe_context *pipe,
+                                struct pipe_resource *res,
+                                unsigned buffer_offset,
+                                unsigned buffer_size)
+{
+   struct pipe_stream_output_target *target;
+
+   target = MALLOC_STRUCT(pipe_stream_output_target);
+   assert(target);
+
+   pipe_reference_init(&target->reference, 1);
+   target->buffer = NULL;
+   pipe_resource_reference(&target->buffer, res);
+   target->context = pipe;
+   target->buffer_offset = buffer_offset;
+   target->buffer_size = buffer_size;
+
+   return target;
+}
+
+static void
+ilo_set_stream_output_targets(struct pipe_context *pipe,
+                              unsigned num_targets,
+                              struct pipe_stream_output_target **targets,
+                              unsigned append_bitmask)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   unsigned i;
+
+   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);
+
+   ilo->stream_output_targets.num_targets = num_targets;
+   ilo->stream_output_targets.append_bitmask = append_bitmask;
+
+   ilo->dirty |= ILO_DIRTY_STREAM_OUTPUT_TARGETS;
+}
+
+static void
+ilo_stream_output_target_destroy(struct pipe_context *pipe,
+                                 struct pipe_stream_output_target *target)
+{
+   pipe_resource_reference(&target->buffer, NULL);
+   FREE(target);
+}
+
+static struct pipe_sampler_view *
+ilo_create_sampler_view(struct pipe_context *pipe,
+                        struct pipe_resource *res,
+                        const struct pipe_sampler_view *templ)
+{
+   struct pipe_sampler_view *view;
+
+   view = MALLOC_STRUCT(pipe_sampler_view);
+   assert(view);
+
+   *view = *templ;
+   pipe_reference_init(&view->reference, 1);
+   view->texture = NULL;
+   pipe_resource_reference(&view->texture, res);
+   view->context = pipe;
+
+   return view;
+}
+
+static void
+ilo_sampler_view_destroy(struct pipe_context *pipe,
+                         struct pipe_sampler_view *view)
+{
+   pipe_resource_reference(&view->texture, NULL);
+   FREE(view);
+}
+
+static struct pipe_surface *
+ilo_create_surface(struct pipe_context *pipe,
+                   struct pipe_resource *res,
+                   const struct pipe_surface *templ)
+{
+   struct pipe_surface *surface;
+
+   surface = MALLOC_STRUCT(pipe_surface);
+   assert(surface);
+
+   *surface = *templ;
+   pipe_reference_init(&surface->reference, 1);
+   surface->texture = NULL;
+   pipe_resource_reference(&surface->texture, res);
+
+   surface->context = pipe;
+   surface->width = u_minify(res->width0, surface->u.tex.level);
+   surface->height = u_minify(res->height0, surface->u.tex.level);
+
+   return surface;
+}
+
+static void
+ilo_surface_destroy(struct pipe_context *pipe,
+                    struct pipe_surface *surface)
+{
+   pipe_resource_reference(&surface->texture, NULL);
+   FREE(surface);
+}
+
+static void *
+ilo_create_compute_state(struct pipe_context *pipe,
+                         const struct pipe_compute_state *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   return ilo_shader_state_create(ilo, PIPE_SHADER_COMPUTE, state);
+}
+
+static void
+ilo_bind_compute_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+
+   ilo->compute = state;
+
+   ilo->dirty |= ILO_DIRTY_COMPUTE;
+}
+
+static void
+ilo_delete_compute_state(struct pipe_context *pipe, void *state)
+{
+   struct ilo_shader_state *cs = (struct ilo_shader_state *) state;
+   ilo_shader_state_destroy(cs);
+}
+
+static void
+ilo_set_compute_resources(struct pipe_context *pipe,
+                          unsigned start, unsigned count,
+                          struct pipe_surface **surfaces)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   struct pipe_surface **dst = ilo->compute_resources.surfaces;
+   unsigned i;
+
+   assert(start + count <= Elements(ilo->compute_resources.surfaces));
+
+   dst += start;
+   if (surfaces) {
+      for (i = 0; i < count; i++)
+         pipe_surface_reference(&dst[i], surfaces[i]);
+   }
+   else {
+      for (i = 0; i < count; i++)
+         pipe_surface_reference(&dst[i], NULL);
+   }
+
+   if (ilo->compute_resources.num_surfaces <= start + count) {
+      count += start;
+
+      while (count > 0 && !ilo->compute_resources.surfaces[count - 1])
+         count--;
+
+      ilo->compute_resources.num_surfaces = count;
+   }
+
+   ilo->dirty |= ILO_DIRTY_COMPUTE_RESOURCES;
+}
+
+static void
+ilo_set_global_binding(struct pipe_context *pipe,
+                       unsigned start, unsigned count,
+                       struct pipe_resource **resources,
+                       uint32_t **handles)
+{
+   struct ilo_context *ilo = ilo_context(pipe);
+   struct pipe_resource **dst = ilo->global_binding.resources;
+   unsigned i;
+
+   assert(start + count <= Elements(ilo->global_binding.resources));
+
+   dst += start;
+   if (resources) {
+      for (i = 0; i < count; i++)
+         pipe_resource_reference(&dst[i], resources[i]);
+   }
+   else {
+      for (i = 0; i < count; i++)
+         pipe_resource_reference(&dst[i], NULL);
+   }
+
+   if (ilo->global_binding.num_resources <= start + count) {
+      count += start;
+
+      while (count > 0 && !ilo->global_binding.resources[count - 1])
+         count--;
+
+      ilo->global_binding.num_resources = count;
+   }
+
+   ilo->dirty |= ILO_DIRTY_GLOBAL_BINDING;
+}
+
 /**
  * Initialize state-related functions.
  */
 void
 ilo_init_state_functions(struct ilo_context *ilo)
 {
-   ilo->base.create_blend_state = NULL;
-   ilo->base.bind_blend_state = NULL;
-   ilo->base.delete_blend_state = NULL;
-   ilo->base.create_sampler_state = NULL;
-   ilo->base.bind_fragment_sampler_states = NULL;
-   ilo->base.bind_vertex_sampler_states = NULL;
-   ilo->base.bind_geometry_sampler_states = NULL;
-   ilo->base.bind_compute_sampler_states = NULL;
-   ilo->base.delete_sampler_state = NULL;
-   ilo->base.create_rasterizer_state = NULL;
-   ilo->base.bind_rasterizer_state = NULL;
-   ilo->base.delete_rasterizer_state = NULL;
-   ilo->base.create_depth_stencil_alpha_state = NULL;
-   ilo->base.bind_depth_stencil_alpha_state = NULL;
-   ilo->base.delete_depth_stencil_alpha_state = NULL;
-   ilo->base.create_fs_state = NULL;
-   ilo->base.bind_fs_state = NULL;
-   ilo->base.delete_fs_state = NULL;
-   ilo->base.create_vs_state = NULL;
-   ilo->base.bind_vs_state = NULL;
-   ilo->base.delete_vs_state = NULL;
-   ilo->base.create_gs_state = NULL;
-   ilo->base.bind_gs_state = NULL;
-   ilo->base.delete_gs_state = NULL;
-   ilo->base.create_vertex_elements_state = NULL;
-   ilo->base.bind_vertex_elements_state = NULL;
-   ilo->base.delete_vertex_elements_state = NULL;
-
-   ilo->base.set_blend_color = NULL;
-   ilo->base.set_stencil_ref = NULL;
-   ilo->base.set_sample_mask = NULL;
-   ilo->base.set_clip_state = NULL;
-   ilo->base.set_constant_buffer = NULL;
-   ilo->base.set_framebuffer_state = NULL;
-   ilo->base.set_polygon_stipple = NULL;
-   ilo->base.set_scissor_state = NULL;
-   ilo->base.set_viewport_state = NULL;
-   ilo->base.set_fragment_sampler_views = NULL;
-   ilo->base.set_vertex_sampler_views = NULL;
-   ilo->base.set_geometry_sampler_views = NULL;
-   ilo->base.set_compute_sampler_views = NULL;
-   ilo->base.set_shader_resources = NULL;
-   ilo->base.set_vertex_buffers = NULL;
-   ilo->base.set_index_buffer = NULL;
-
-   ilo->base.create_stream_output_target = NULL;
-   ilo->base.stream_output_target_destroy = NULL;
-   ilo->base.set_stream_output_targets = NULL;
-
-   ilo->base.create_sampler_view = NULL;
-   ilo->base.sampler_view_destroy = NULL;
-
-   ilo->base.create_surface = NULL;
-   ilo->base.surface_destroy = NULL;
-
-   ilo->base.create_compute_state = NULL;
-   ilo->base.bind_compute_state = NULL;
-   ilo->base.delete_compute_state = NULL;
-   ilo->base.set_compute_resources = NULL;
-   ilo->base.set_global_binding = NULL;
+   STATIC_ASSERT(ILO_STATE_COUNT <= 32);
+
+   ilo->base.create_blend_state = ilo_create_blend_state;
+   ilo->base.bind_blend_state = ilo_bind_blend_state;
+   ilo->base.delete_blend_state = ilo_delete_blend_state;
+   ilo->base.create_sampler_state = ilo_create_sampler_state;
+   ilo->base.bind_fragment_sampler_states = ilo_bind_fragment_sampler_states;
+   ilo->base.bind_vertex_sampler_states = ilo_bind_vertex_sampler_states;
+   ilo->base.bind_geometry_sampler_states = ilo_bind_geometry_sampler_states;
+   ilo->base.bind_compute_sampler_states = ilo_bind_compute_sampler_states;
+   ilo->base.delete_sampler_state = ilo_delete_sampler_state;
+   ilo->base.create_rasterizer_state = ilo_create_rasterizer_state;
+   ilo->base.bind_rasterizer_state = ilo_bind_rasterizer_state;
+   ilo->base.delete_rasterizer_state = ilo_delete_rasterizer_state;
+   ilo->base.create_depth_stencil_alpha_state = ilo_create_depth_stencil_alpha_state;
+   ilo->base.bind_depth_stencil_alpha_state = ilo_bind_depth_stencil_alpha_state;
+   ilo->base.delete_depth_stencil_alpha_state = ilo_delete_depth_stencil_alpha_state;
+   ilo->base.create_fs_state = ilo_create_fs_state;
+   ilo->base.bind_fs_state = ilo_bind_fs_state;
+   ilo->base.delete_fs_state = ilo_delete_fs_state;
+   ilo->base.create_vs_state = ilo_create_vs_state;
+   ilo->base.bind_vs_state = ilo_bind_vs_state;
+   ilo->base.delete_vs_state = ilo_delete_vs_state;
+   ilo->base.create_gs_state = ilo_create_gs_state;
+   ilo->base.bind_gs_state = ilo_bind_gs_state;
+   ilo->base.delete_gs_state = ilo_delete_gs_state;
+   ilo->base.create_vertex_elements_state = ilo_create_vertex_elements_state;
+   ilo->base.bind_vertex_elements_state = ilo_bind_vertex_elements_state;
+   ilo->base.delete_vertex_elements_state = ilo_delete_vertex_elements_state;
+
+   ilo->base.set_blend_color = ilo_set_blend_color;
+   ilo->base.set_stencil_ref = ilo_set_stencil_ref;
+   ilo->base.set_sample_mask = ilo_set_sample_mask;
+   ilo->base.set_clip_state = ilo_set_clip_state;
+   ilo->base.set_constant_buffer = ilo_set_constant_buffer;
+   ilo->base.set_framebuffer_state = ilo_set_framebuffer_state;
+   ilo->base.set_polygon_stipple = ilo_set_polygon_stipple;
+   ilo->base.set_scissor_state = ilo_set_scissor_state;
+   ilo->base.set_viewport_state = ilo_set_viewport_state;
+   ilo->base.set_fragment_sampler_views = ilo_set_fragment_sampler_views;
+   ilo->base.set_vertex_sampler_views = ilo_set_vertex_sampler_views;
+   ilo->base.set_geometry_sampler_views = ilo_set_geometry_sampler_views;
+   ilo->base.set_compute_sampler_views = ilo_set_compute_sampler_views;
+   ilo->base.set_shader_resources = ilo_set_shader_resources;
+   ilo->base.set_vertex_buffers = ilo_set_vertex_buffers;
+   ilo->base.set_index_buffer = ilo_set_index_buffer;
+
+   ilo->base.create_stream_output_target = ilo_create_stream_output_target;
+   ilo->base.stream_output_target_destroy = ilo_stream_output_target_destroy;
+   ilo->base.set_stream_output_targets = ilo_set_stream_output_targets;
+
+   ilo->base.create_sampler_view = ilo_create_sampler_view;
+   ilo->base.sampler_view_destroy = ilo_sampler_view_destroy;
+
+   ilo->base.create_surface = ilo_create_surface;
+   ilo->base.surface_destroy = ilo_surface_destroy;
+
+   ilo->base.create_compute_state = ilo_create_compute_state;
+   ilo->base.bind_compute_state = ilo_bind_compute_state;
+   ilo->base.delete_compute_state = ilo_delete_compute_state;
+   ilo->base.set_compute_resources = ilo_set_compute_resources;
+   ilo->base.set_global_binding = ilo_set_global_binding;
 }