#include "zink_compiler.h"
#include "zink_context.h"
#include "zink_program.h"
#include "zink_query.h"
#include "zink_resource.h"
#include "zink_screen.h"
#include "zink_state.h"
#include "zink_surface.h"
#include "zink_inlines.h"

#include "tgsi/tgsi_from_mesa.h"
#include "util/hash_table.h"
#include "util/u_debug.h"
#include "util/u_helpers.h"
#include "util/u_inlines.h"
#include "util/u_prim.h"
#include "util/u_prim_restart.h"


static void
zink_emit_xfb_counter_barrier(struct zink_context *ctx)
{
   /* Between the pause and resume there needs to be a memory barrier for the counter buffers
    * with a source access of VK_ACCESS_TRANSFORM_FEEDBACK_COUNTER_WRITE_BIT_EXT
    * at pipeline stage VK_PIPELINE_STAGE_TRANSFORM_FEEDBACK_BIT_EXT
    * to a destination access of VK_ACCESS_TRANSFORM_FEEDBACK_COUNTER_READ_BIT_EXT
    * at pipeline stage VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT.
    *
    * - from VK_EXT_transform_feedback spec
    */
   for (unsigned i = 0; i < ctx->num_so_targets; i++) {
      struct zink_so_target *t = zink_so_target(ctx->so_targets[i]);
      if (!t)
         continue;
      struct zink_resource *res = zink_resource(t->counter_buffer);
      if (t->counter_buffer_valid)
          zink_resource_buffer_barrier(ctx, res, VK_ACCESS_TRANSFORM_FEEDBACK_COUNTER_READ_BIT_EXT,
                                       VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT);
      else
          zink_resource_buffer_barrier(ctx, res, VK_ACCESS_TRANSFORM_FEEDBACK_COUNTER_WRITE_BIT_EXT,
                                       VK_PIPELINE_STAGE_TRANSFORM_FEEDBACK_BIT_EXT);
   }
   ctx->xfb_barrier = false;
}

static void
zink_emit_xfb_vertex_input_barrier(struct zink_context *ctx, struct zink_resource *res)
{
   /* A pipeline barrier is required between using the buffers as
    * transform feedback buffers and vertex buffers to
    * ensure all writes to the transform feedback buffers are visible
    * when the data is read as vertex attributes.
    * The source access is VK_ACCESS_TRANSFORM_FEEDBACK_WRITE_BIT_EXT
    * and the destination access is VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT
    * for the pipeline stages VK_PIPELINE_STAGE_TRANSFORM_FEEDBACK_BIT_EXT
    * and VK_PIPELINE_STAGE_VERTEX_INPUT_BIT respectively.
    *
    * - 20.3.1. Drawing Transform Feedback
    */
   zink_resource_buffer_barrier(ctx, res, VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT,
                                VK_PIPELINE_STAGE_VERTEX_INPUT_BIT);
}

static void
zink_emit_stream_output_targets(struct pipe_context *pctx)
{
   struct zink_context *ctx = zink_context(pctx);
   struct zink_batch *batch = &ctx->batch;
   VkBuffer buffers[PIPE_MAX_SO_OUTPUTS] = {0};
   VkDeviceSize buffer_offsets[PIPE_MAX_SO_OUTPUTS] = {0};
   VkDeviceSize buffer_sizes[PIPE_MAX_SO_OUTPUTS] = {0};

   for (unsigned i = 0; i < ctx->num_so_targets; i++) {
      struct zink_so_target *t = (struct zink_so_target *)ctx->so_targets[i];
      if (!t) {
         /* no need to reference this or anything */
         buffers[i] = zink_resource(ctx->dummy_xfb_buffer)->obj->buffer;
         buffer_offsets[i] = 0;
         buffer_sizes[i] = sizeof(uint8_t);
         continue;
      }
      struct zink_resource *res = zink_resource(t->base.buffer);
      if (!res->so_valid)
         /* resource has been rebound */
         t->counter_buffer_valid = false;
      buffers[i] = res->obj->buffer;
      zink_batch_reference_resource_rw(batch, res, true);
      buffer_offsets[i] = t->base.buffer_offset;
      buffer_sizes[i] = t->base.buffer_size;
      res->so_valid = true;
      util_range_add(t->base.buffer, &res->valid_buffer_range, t->base.buffer_offset,
                     t->base.buffer_offset + t->base.buffer_size);
   }

   VKCTX(CmdBindTransformFeedbackBuffersEXT)(batch->state->cmdbuf, 0, ctx->num_so_targets,
                                                 buffers, buffer_offsets,
                                                 buffer_sizes);
   ctx->dirty_so_targets = false;
}

ALWAYS_INLINE static void
check_buffer_barrier(struct zink_context *ctx, struct pipe_resource *pres, VkAccessFlags flags, VkPipelineStageFlags pipeline)
{
   struct zink_resource *res = zink_resource(pres);
   zink_resource_buffer_barrier(ctx, res, flags, pipeline);
}

ALWAYS_INLINE static void
barrier_draw_buffers(struct zink_context *ctx, const struct pipe_draw_info *dinfo,
                     const struct pipe_draw_indirect_info *dindirect, struct pipe_resource *index_buffer)
{
   if (index_buffer)
      check_buffer_barrier(ctx, index_buffer, VK_ACCESS_INDEX_READ_BIT, VK_PIPELINE_STAGE_VERTEX_INPUT_BIT);
   if (dindirect && dindirect->buffer) {
      check_buffer_barrier(ctx, dindirect->buffer,
                           VK_ACCESS_INDIRECT_COMMAND_READ_BIT, VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT);
      if (dindirect->indirect_draw_count)
         check_buffer_barrier(ctx, dindirect->indirect_draw_count,
                              VK_ACCESS_INDIRECT_COMMAND_READ_BIT, VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT);
   }
}

template <zink_dynamic_state DYNAMIC_STATE>
static void
zink_bind_vertex_buffers(struct zink_batch *batch, struct zink_context *ctx)
{
   VkBuffer buffers[PIPE_MAX_ATTRIBS];
   VkDeviceSize buffer_offsets[PIPE_MAX_ATTRIBS];
   VkDeviceSize buffer_strides[PIPE_MAX_ATTRIBS];
   struct zink_vertex_elements_state *elems = ctx->element_state;
   struct zink_screen *screen = zink_screen(ctx->base.screen);

   if (!elems->hw_state.num_bindings)
      return;

   for (unsigned i = 0; i < elems->hw_state.num_bindings; i++) {
      struct pipe_vertex_buffer *vb = ctx->vertex_buffers + ctx->element_state->binding_map[i];
      assert(vb);
      if (vb->buffer.resource) {
         struct zink_resource *res = zink_resource(vb->buffer.resource);
         assert(res->obj->buffer);
         buffers[i] = res->obj->buffer;
         buffer_offsets[i] = vb->buffer_offset;
         buffer_strides[i] = vb->stride;
         if (DYNAMIC_STATE == ZINK_DYNAMIC_VERTEX_INPUT)
            elems->hw_state.dynbindings[i].stride = vb->stride;
         zink_batch_resource_usage_set(&ctx->batch, zink_resource(vb->buffer.resource), false);
      } else {
         buffers[i] = zink_resource(ctx->dummy_vertex_buffer)->obj->buffer;
         buffer_offsets[i] = 0;
         buffer_strides[i] = 0;
         if (DYNAMIC_STATE == ZINK_DYNAMIC_VERTEX_INPUT)
            elems->hw_state.dynbindings[i].stride = 0;
      }
   }

   if (DYNAMIC_STATE != ZINK_NO_DYNAMIC_STATE && DYNAMIC_STATE != ZINK_DYNAMIC_VERTEX_INPUT)
      VKCTX(CmdBindVertexBuffers2EXT)(batch->state->cmdbuf, 0,
                                          elems->hw_state.num_bindings,
                                          buffers, buffer_offsets, NULL, buffer_strides);
   else
      VKSCR(CmdBindVertexBuffers)(batch->state->cmdbuf, 0,
                             elems->hw_state.num_bindings,
                             buffers, buffer_offsets);

   if (DYNAMIC_STATE == ZINK_DYNAMIC_VERTEX_INPUT)
      VKCTX(CmdSetVertexInputEXT)(batch->state->cmdbuf,
                                      elems->hw_state.num_bindings, elems->hw_state.dynbindings,
                                      elems->hw_state.num_attribs, elems->hw_state.dynattribs);

   ctx->vertex_buffers_dirty = false;
}

static void
zink_bind_vertex_state(struct zink_batch *batch, struct zink_context *ctx,
                       struct pipe_vertex_state *vstate, uint32_t partial_velem_mask)
{
   if (!vstate->input.vbuffer.buffer.resource)
      return;

   const struct zink_vertex_elements_hw_state *hw_state = zink_vertex_state_mask(vstate, partial_velem_mask, true);
   assert(hw_state);

   struct zink_resource *res = zink_resource(vstate->input.vbuffer.buffer.resource);
   zink_batch_resource_usage_set(&ctx->batch, res, false);
   VkDeviceSize offset = vstate->input.vbuffer.buffer_offset;
   VKCTX(CmdBindVertexBuffers)(batch->state->cmdbuf, 0,
                               hw_state->num_bindings,
                               &res->obj->buffer, &offset);

   VKCTX(CmdSetVertexInputEXT)(batch->state->cmdbuf,
                               hw_state->num_bindings, hw_state->dynbindings,
                               hw_state->num_attribs, hw_state->dynattribs);
}

static void
update_gfx_program(struct zink_context *ctx)
{
   if (ctx->last_vertex_stage_dirty) {
      enum pipe_shader_type pstage = pipe_shader_type_from_mesa(ctx->last_vertex_stage->nir->info.stage);
      ctx->dirty_shader_stages |= BITFIELD_BIT(pstage);
      memcpy(&ctx->gfx_pipeline_state.shader_keys.key[pstage].key.vs_base,
             &ctx->gfx_pipeline_state.shader_keys.last_vertex.key.vs_base,
             sizeof(struct zink_vs_key_base));
      ctx->last_vertex_stage_dirty = false;
   }
   unsigned bits = BITFIELD_MASK(PIPE_SHADER_COMPUTE);
   if (ctx->gfx_dirty) {
      struct zink_gfx_program *prog = NULL;

      struct hash_table *ht = &ctx->program_cache[ctx->shader_stages >> 2];
      const uint32_t hash = ctx->gfx_hash;
      struct hash_entry *entry = _mesa_hash_table_search_pre_hashed(ht, hash, ctx->gfx_stages);
      if (entry) {
         prog = (struct zink_gfx_program*)entry->data;
         u_foreach_bit(stage, prog->stages_present & ~ctx->dirty_shader_stages)
            ctx->gfx_pipeline_state.modules[stage] = prog->modules[stage]->shader;
         /* ensure variants are always updated if keys have changed since last use */
         ctx->dirty_shader_stages |= prog->stages_present;
      } else {
         ctx->dirty_shader_stages |= bits;
         prog = zink_create_gfx_program(ctx, ctx->gfx_stages, ctx->gfx_pipeline_state.vertices_per_patch + 1);
         _mesa_hash_table_insert_pre_hashed(ht, hash, prog->shaders, prog);
      }
      zink_update_gfx_program(ctx, prog);
      if (prog && prog != ctx->curr_program)
         zink_batch_reference_program(&ctx->batch, &prog->base);
      if (ctx->curr_program)
         ctx->gfx_pipeline_state.final_hash ^= ctx->curr_program->last_variant_hash;
      ctx->curr_program = prog;
      ctx->gfx_pipeline_state.final_hash ^= ctx->curr_program->last_variant_hash;
      ctx->gfx_dirty = false;
   } else if (ctx->dirty_shader_stages & bits) {
      /* remove old hash */
      ctx->gfx_pipeline_state.final_hash ^= ctx->curr_program->last_variant_hash;
      zink_update_gfx_program(ctx, ctx->curr_program);
      /* apply new hash */
      ctx->gfx_pipeline_state.final_hash ^= ctx->curr_program->last_variant_hash;
   }
   ctx->dirty_shader_stages &= ~bits;
}

ALWAYS_INLINE static void
update_drawid(struct zink_context *ctx, unsigned draw_id)
{
   VKCTX(CmdPushConstants)(ctx->batch.state->cmdbuf, ctx->curr_program->base.layout, VK_SHADER_STAGE_VERTEX_BIT,
                      offsetof(struct zink_gfx_push_constant, draw_id), sizeof(unsigned),
                      &draw_id);
}

ALWAYS_INLINE static void
draw_indexed_need_index_buffer_unref(struct zink_context *ctx,
             const struct pipe_draw_info *dinfo,
             const struct pipe_draw_start_count_bias *draws,
             unsigned num_draws,
             unsigned draw_id,
             bool needs_drawid)
{
   VkCommandBuffer cmdbuf = ctx->batch.state->cmdbuf;
   if (dinfo->increment_draw_id && needs_drawid) {
      for (unsigned i = 0; i < num_draws; i++) {
         update_drawid(ctx, draw_id);
         VKCTX(CmdDrawIndexed)(cmdbuf,
            draws[i].count, dinfo->instance_count,
            0, draws[i].index_bias, dinfo->start_instance);
         draw_id++;
      }
   } else {
      if (needs_drawid)
         update_drawid(ctx, draw_id);
      for (unsigned i = 0; i < num_draws; i++)
         VKCTX(CmdDrawIndexed)(cmdbuf,
            draws[i].count, dinfo->instance_count,
            0, draws[i].index_bias, dinfo->start_instance);

   }
}

template <zink_multidraw HAS_MULTIDRAW>
ALWAYS_INLINE static void
draw_indexed(struct zink_context *ctx,
             const struct pipe_draw_info *dinfo,
             const struct pipe_draw_start_count_bias *draws,
             unsigned num_draws,
             unsigned draw_id,
             bool needs_drawid)
{
   VkCommandBuffer cmdbuf = ctx->batch.state->cmdbuf;
   if (dinfo->increment_draw_id && needs_drawid) {
      for (unsigned i = 0; i < num_draws; i++) {
         update_drawid(ctx, draw_id);
         VKCTX(CmdDrawIndexed)(cmdbuf,
            draws[i].count, dinfo->instance_count,
            draws[i].start, draws[i].index_bias, dinfo->start_instance);
         draw_id++;
      }
   } else {
      if (needs_drawid)
         update_drawid(ctx, draw_id);
      if (HAS_MULTIDRAW) {
         VKCTX(CmdDrawMultiIndexedEXT)(cmdbuf, num_draws, (const VkMultiDrawIndexedInfoEXT*)draws,
                                       dinfo->instance_count,
                                       dinfo->start_instance, sizeof(struct pipe_draw_start_count_bias),
                                       dinfo->index_bias_varies ? NULL : &draws[0].index_bias);
      } else {
         for (unsigned i = 0; i < num_draws; i++)
            VKCTX(CmdDrawIndexed)(cmdbuf,
               draws[i].count, dinfo->instance_count,
               draws[i].start, draws[i].index_bias, dinfo->start_instance);
      }
   }
}

template <zink_multidraw HAS_MULTIDRAW>
ALWAYS_INLINE static void
draw(struct zink_context *ctx,
     const struct pipe_draw_info *dinfo,
     const struct pipe_draw_start_count_bias *draws,
     unsigned num_draws,
     unsigned draw_id,
     bool needs_drawid)
{
   VkCommandBuffer cmdbuf = ctx->batch.state->cmdbuf;
   if (dinfo->increment_draw_id && needs_drawid) {
      for (unsigned i = 0; i < num_draws; i++) {
         update_drawid(ctx, draw_id);
         VKCTX(CmdDraw)(cmdbuf, draws[i].count, dinfo->instance_count, draws[i].start, dinfo->start_instance);
         draw_id++;
      }
   } else {
      if (needs_drawid)
         update_drawid(ctx, draw_id);
      if (HAS_MULTIDRAW)
         VKCTX(CmdDrawMultiEXT)(cmdbuf, num_draws, (const VkMultiDrawInfoEXT*)draws,
                                dinfo->instance_count, dinfo->start_instance,
                                sizeof(struct pipe_draw_start_count_bias));
      else {
         for (unsigned i = 0; i < num_draws; i++)
            VKCTX(CmdDraw)(cmdbuf, draws[i].count, dinfo->instance_count, draws[i].start, dinfo->start_instance);

      }
   }
}

ALWAYS_INLINE static VkPipelineStageFlags
find_pipeline_bits(uint32_t *mask)
{
   for (unsigned i = 0; i < ZINK_SHADER_COUNT; i++) {
      if (mask[i]) {
         return zink_pipeline_flags_from_pipe_stage((enum pipe_shader_type)i);
      }
   }
   return 0;
}

static void
update_barriers(struct zink_context *ctx, bool is_compute)
{
   if (!ctx->need_barriers[is_compute]->entries)
      return;
   struct set *need_barriers = ctx->need_barriers[is_compute];
   ctx->barrier_set_idx[is_compute] = !ctx->barrier_set_idx[is_compute];
   ctx->need_barriers[is_compute] = &ctx->update_barriers[is_compute][ctx->barrier_set_idx[is_compute]];
   set_foreach(need_barriers, he) {
      struct zink_resource *res = (struct zink_resource *)he->key;
      VkPipelineStageFlags pipeline = 0;
      VkAccessFlags access = 0;
      if (res->bind_count[is_compute]) {
         if (res->write_bind_count[is_compute])
            access |= VK_ACCESS_SHADER_WRITE_BIT;
         if (res->write_bind_count[is_compute] != res->bind_count[is_compute]) {
            unsigned bind_count = res->bind_count[is_compute] - res->write_bind_count[is_compute];
            if (res->obj->is_buffer) {
               if (res->ubo_bind_count[is_compute]) {
                  access |= VK_ACCESS_UNIFORM_READ_BIT;
                  bind_count -= res->ubo_bind_count[is_compute];
               }
               if (!is_compute && res->vbo_bind_mask) {
                  access |= VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT;
                  pipeline |= VK_PIPELINE_STAGE_VERTEX_INPUT_BIT;
                  bind_count -= util_bitcount(res->vbo_bind_mask);
                  if (res->write_bind_count[is_compute])
                     pipeline |= VK_PIPELINE_STAGE_VERTEX_SHADER_BIT;
               }
               bind_count -= res->so_bind_count;
            }
            if (bind_count)
               access |= VK_ACCESS_SHADER_READ_BIT;
         }
         if (is_compute)
            pipeline = VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT;
         else if (!pipeline) {
            if (res->ubo_bind_count[0])
               pipeline |= find_pipeline_bits(res->ubo_bind_mask);
            if (!pipeline)
               pipeline |= find_pipeline_bits(res->ssbo_bind_mask);
            if (!pipeline)
               pipeline |= find_pipeline_bits(res->sampler_binds);
            if (!pipeline) //must be a shader image
               pipeline = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
         }
         if (res->base.b.target == PIPE_BUFFER)
            zink_resource_buffer_barrier(ctx, res, access, pipeline);
         else {
            VkImageLayout layout = zink_descriptor_util_image_layout_eval(res, is_compute);
            if (layout != res->layout)
               zink_resource_image_barrier(ctx, res, layout, access, pipeline);
         }
         /* always barrier on draw if this resource has either multiple image write binds or
          * image write binds and image read binds
          */
         if (res->write_bind_count[is_compute] && res->bind_count[is_compute] > 1)
            _mesa_set_add_pre_hashed(ctx->need_barriers[is_compute], he->hash, res);
      }
      _mesa_set_remove(need_barriers, he);
      if (!need_barriers->entries)
         break;
   }
}

template <bool BATCH_CHANGED>
static bool
update_gfx_pipeline(struct zink_context *ctx, struct zink_batch_state *bs, enum pipe_prim_type mode)
{
   VkPipeline prev_pipeline = ctx->gfx_pipeline_state.pipeline;
   update_gfx_program(ctx);
   VkPipeline pipeline = zink_get_gfx_pipeline(ctx, ctx->curr_program, &ctx->gfx_pipeline_state, mode);
   bool pipeline_changed = prev_pipeline != pipeline;
   if (BATCH_CHANGED || pipeline_changed)
      VKCTX(CmdBindPipeline)(bs->cmdbuf, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
   return pipeline_changed;
}

static bool
hack_conditional_render(struct pipe_context *pctx,
                        const struct pipe_draw_info *dinfo,
                        unsigned drawid_offset,
                        const struct pipe_draw_indirect_info *dindirect,
                        const struct pipe_draw_start_count_bias *draws,
                        unsigned num_draws)
{
   struct zink_context *ctx = zink_context(pctx);
   struct zink_batch_state *bs = ctx->batch.state;
   static bool warned;
   if (!warned) {
      fprintf(stderr, "ZINK: warning, this is cpu-based conditional rendering, say bye-bye to fps\n");
      warned = true;
   }
   if (!zink_check_conditional_render(ctx))
      return false;
   if (bs != ctx->batch.state) {
      bool prev = ctx->render_condition_active;
      ctx->render_condition_active = false;
      zink_select_draw_vbo(ctx);
      pctx->draw_vbo(pctx, dinfo, drawid_offset, dindirect, draws, num_draws);
      ctx->render_condition_active = prev;
      return false;
   }
   return true;
}

template <zink_multidraw HAS_MULTIDRAW, zink_dynamic_state DYNAMIC_STATE, bool BATCH_CHANGED, bool DRAW_STATE>
void
zink_draw(struct pipe_context *pctx,
          const struct pipe_draw_info *dinfo,
          unsigned drawid_offset,
          const struct pipe_draw_indirect_info *dindirect,
          const struct pipe_draw_start_count_bias *draws,
          unsigned num_draws,
          struct pipe_vertex_state *vstate,
          uint32_t partial_velem_mask)
{
   if (!dindirect && (!draws[0].count || !dinfo->instance_count))
      return;

   struct zink_context *ctx = zink_context(pctx);
   struct zink_screen *screen = zink_screen(pctx->screen);
   struct zink_rasterizer_state *rast_state = ctx->rast_state;
   struct zink_depth_stencil_alpha_state *dsa_state = ctx->dsa_state;
   struct zink_batch *batch = &ctx->batch;
   struct zink_so_target *so_target =
      dindirect && dindirect->count_from_stream_output ?
         zink_so_target(dindirect->count_from_stream_output) : NULL;
   VkBuffer counter_buffers[PIPE_MAX_SO_OUTPUTS];
   VkDeviceSize counter_buffer_offsets[PIPE_MAX_SO_OUTPUTS];
   bool need_index_buffer_unref = false;
   bool mode_changed = ctx->gfx_pipeline_state.gfx_prim_mode != dinfo->mode;
   bool reads_drawid = ctx->shader_reads_drawid;
   bool reads_basevertex = ctx->shader_reads_basevertex;
   unsigned work_count = ctx->batch.work_count;
   enum pipe_prim_type mode = (enum pipe_prim_type)dinfo->mode;

   if (unlikely(!screen->info.have_EXT_conditional_rendering)) {
      if (!hack_conditional_render(pctx, dinfo, drawid_offset, dindirect, draws, num_draws))
         return;
   }

   if (ctx->memory_barrier)
      zink_flush_memory_barrier(ctx, false);
   update_barriers(ctx, false);

   if (unlikely(ctx->buffer_rebind_counter < screen->buffer_rebind_counter)) {
      ctx->buffer_rebind_counter = screen->buffer_rebind_counter;
      zink_rebind_all_buffers(ctx);
   }

   unsigned index_offset = 0;
   unsigned index_size = dinfo->index_size;
   struct pipe_resource *index_buffer = NULL;
   if (index_size > 0) {
      if (dinfo->has_user_indices) {
         if (!util_upload_index_buffer(pctx, dinfo, &draws[0], &index_buffer, &index_offset, 4)) {
            debug_printf("util_upload_index_buffer() failed\n");
            return;
         }
         /* this will have extra refs from tc */
         if (screen->threaded)
            zink_batch_reference_resource_move(batch, zink_resource(index_buffer));
         else
            zink_batch_reference_resource(batch, zink_resource(index_buffer));
      } else {
         index_buffer = dinfo->index.resource;
         zink_batch_reference_resource_rw(batch, zink_resource(index_buffer), false);
      }
      assert(index_size <= 4 && index_size != 3);
      assert(index_size != 1 || screen->info.have_EXT_index_type_uint8);
   }

   bool have_streamout = !!ctx->num_so_targets;
   if (have_streamout) {
      if (ctx->xfb_barrier)
         zink_emit_xfb_counter_barrier(ctx);
      if (ctx->dirty_so_targets) {
         /* have to loop here and below because barriers must be emitted out of renderpass,
          * but xfb buffers can't be bound before the renderpass is active to avoid
          * breaking from recursion
          */
         for (unsigned i = 0; i < ctx->num_so_targets; i++) {
            struct zink_so_target *t = (struct zink_so_target *)ctx->so_targets[i];
            if (t)
               zink_resource_buffer_barrier(ctx, zink_resource(t->base.buffer),
                                            VK_ACCESS_TRANSFORM_FEEDBACK_WRITE_BIT_EXT, VK_PIPELINE_STAGE_TRANSFORM_FEEDBACK_BIT_EXT);
         }
      }
   }

   if (so_target)
      zink_emit_xfb_vertex_input_barrier(ctx, zink_resource(so_target->base.buffer));

   barrier_draw_buffers(ctx, dinfo, dindirect, index_buffer);

   if (BATCH_CHANGED)
      zink_update_descriptor_refs(ctx, false);

   zink_batch_rp(ctx);

   /* these must be after renderpass start to avoid issues with recursion */
   uint8_t vertices_per_patch = ctx->gfx_pipeline_state.patch_vertices ? ctx->gfx_pipeline_state.patch_vertices - 1 : 0;
   if (ctx->gfx_pipeline_state.vertices_per_patch != vertices_per_patch)
      ctx->gfx_pipeline_state.dirty = true;
   bool drawid_broken = false;
   if (reads_drawid && (!dindirect || !dindirect->buffer))
      drawid_broken = (drawid_offset != 0 ||
                      (!HAS_MULTIDRAW && num_draws > 1) ||
                      (HAS_MULTIDRAW && num_draws > 1 && !dinfo->increment_draw_id));
   if (drawid_broken != zink_get_last_vertex_key(ctx)->push_drawid)
      zink_set_last_vertex_key(ctx)->push_drawid = drawid_broken;
   ctx->gfx_pipeline_state.vertices_per_patch = vertices_per_patch;
   if (mode_changed) {
      bool points_changed = false;
      if (mode == PIPE_PRIM_POINTS) {
         ctx->gfx_pipeline_state.has_points++;
         points_changed = true;
      } else if (ctx->gfx_pipeline_state.gfx_prim_mode == PIPE_PRIM_POINTS) {
         ctx->gfx_pipeline_state.has_points--;
         points_changed = true;
      }
      if (points_changed && ctx->rast_state->base.point_quad_rasterization)
         zink_set_fs_point_coord_key(ctx);
   }
   ctx->gfx_pipeline_state.gfx_prim_mode = mode;

   if (index_size) {
      const VkIndexType index_type[3] = {
         VK_INDEX_TYPE_UINT8_EXT,
         VK_INDEX_TYPE_UINT16,
         VK_INDEX_TYPE_UINT32,
      };
      struct zink_resource *res = zink_resource(index_buffer);
      VKCTX(CmdBindIndexBuffer)(batch->state->cmdbuf, res->obj->buffer, index_offset, index_type[index_size >> 1]);
   }
   if (DYNAMIC_STATE < ZINK_DYNAMIC_STATE2) {
      if (ctx->gfx_pipeline_state.primitive_restart != dinfo->primitive_restart)
         ctx->gfx_pipeline_state.dirty = true;
      ctx->gfx_pipeline_state.primitive_restart = dinfo->primitive_restart;
   }

   if (have_streamout && ctx->dirty_so_targets)
      zink_emit_stream_output_targets(pctx);

   bool pipeline_changed = false;
   if (DYNAMIC_STATE == ZINK_NO_DYNAMIC_STATE)
      pipeline_changed = update_gfx_pipeline<BATCH_CHANGED>(ctx, batch->state, mode);

   if (BATCH_CHANGED || ctx->vp_state_changed || (DYNAMIC_STATE == ZINK_NO_DYNAMIC_STATE && pipeline_changed)) {
      VkViewport viewports[PIPE_MAX_VIEWPORTS];
      for (unsigned i = 0; i < ctx->vp_state.num_viewports; i++) {
         VkViewport viewport = {
            ctx->vp_state.viewport_states[i].translate[0] - ctx->vp_state.viewport_states[i].scale[0],
            ctx->vp_state.viewport_states[i].translate[1] - ctx->vp_state.viewport_states[i].scale[1],
            ctx->vp_state.viewport_states[i].scale[0] * 2,
            ctx->vp_state.viewport_states[i].scale[1] * 2,
            ctx->rast_state->base.clip_halfz ?
               ctx->vp_state.viewport_states[i].translate[2] :
               ctx->vp_state.viewport_states[i].translate[2] - ctx->vp_state.viewport_states[i].scale[2],
            ctx->vp_state.viewport_states[i].translate[2] + ctx->vp_state.viewport_states[i].scale[2]
         };
         viewports[i] = viewport;
      }
      if (DYNAMIC_STATE != ZINK_NO_DYNAMIC_STATE)
         VKCTX(CmdSetViewportWithCountEXT)(batch->state->cmdbuf, ctx->vp_state.num_viewports, viewports);
      else
         VKCTX(CmdSetViewport)(batch->state->cmdbuf, 0, ctx->vp_state.num_viewports, viewports);
   }
   if (BATCH_CHANGED || ctx->scissor_changed || ctx->vp_state_changed || (DYNAMIC_STATE == ZINK_NO_DYNAMIC_STATE && pipeline_changed)) {
      VkRect2D scissors[PIPE_MAX_VIEWPORTS];
      if (ctx->rast_state->base.scissor) {
         for (unsigned i = 0; i < ctx->vp_state.num_viewports; i++) {
            scissors[i].offset.x = ctx->vp_state.scissor_states[i].minx;
            scissors[i].offset.y = ctx->vp_state.scissor_states[i].miny;
            scissors[i].extent.width = ctx->vp_state.scissor_states[i].maxx - ctx->vp_state.scissor_states[i].minx;
            scissors[i].extent.height = ctx->vp_state.scissor_states[i].maxy - ctx->vp_state.scissor_states[i].miny;
         }
      } else {
         for (unsigned i = 0; i < ctx->vp_state.num_viewports; i++) {
            scissors[i].offset.x = 0;
            scissors[i].offset.y = 0;
            scissors[i].extent.width = ctx->fb_state.width;
            scissors[i].extent.height = ctx->fb_state.height;
         }
      }
      if (DYNAMIC_STATE != ZINK_NO_DYNAMIC_STATE)
         VKCTX(CmdSetScissorWithCountEXT)(batch->state->cmdbuf, ctx->vp_state.num_viewports, scissors);
      else
         VKCTX(CmdSetScissor)(batch->state->cmdbuf, 0, ctx->vp_state.num_viewports, scissors);
   }
   ctx->vp_state_changed = false;
   ctx->scissor_changed = false;

   if (BATCH_CHANGED || ctx->stencil_ref_changed) {
      VKCTX(CmdSetStencilReference)(batch->state->cmdbuf, VK_STENCIL_FACE_FRONT_BIT,
                               ctx->stencil_ref.ref_value[0]);
      VKCTX(CmdSetStencilReference)(batch->state->cmdbuf, VK_STENCIL_FACE_BACK_BIT,
                               ctx->stencil_ref.ref_value[1]);
      ctx->stencil_ref_changed = false;
   }

   if (DYNAMIC_STATE != ZINK_NO_DYNAMIC_STATE && (BATCH_CHANGED || ctx->dsa_state_changed)) {
      VKCTX(CmdSetDepthBoundsTestEnableEXT)(batch->state->cmdbuf, dsa_state->hw_state.depth_bounds_test);
      if (dsa_state->hw_state.depth_bounds_test)
         VKCTX(CmdSetDepthBounds)(batch->state->cmdbuf,
                             dsa_state->hw_state.min_depth_bounds,
                             dsa_state->hw_state.max_depth_bounds);
      VKCTX(CmdSetDepthTestEnableEXT)(batch->state->cmdbuf, dsa_state->hw_state.depth_test);
      if (dsa_state->hw_state.depth_test)
         VKCTX(CmdSetDepthCompareOpEXT)(batch->state->cmdbuf, dsa_state->hw_state.depth_compare_op);
      VKCTX(CmdSetDepthWriteEnableEXT)(batch->state->cmdbuf, dsa_state->hw_state.depth_write);
      VKCTX(CmdSetStencilTestEnableEXT)(batch->state->cmdbuf, dsa_state->hw_state.stencil_test);
      if (dsa_state->hw_state.stencil_test) {
         VKCTX(CmdSetStencilOpEXT)(batch->state->cmdbuf, VK_STENCIL_FACE_FRONT_BIT,
                                       dsa_state->hw_state.stencil_front.failOp,
                                       dsa_state->hw_state.stencil_front.passOp,
                                       dsa_state->hw_state.stencil_front.depthFailOp,
                                       dsa_state->hw_state.stencil_front.compareOp);
         VKCTX(CmdSetStencilOpEXT)(batch->state->cmdbuf, VK_STENCIL_FACE_BACK_BIT,
                                       dsa_state->hw_state.stencil_back.failOp,
                                       dsa_state->hw_state.stencil_back.passOp,
                                       dsa_state->hw_state.stencil_back.depthFailOp,
                                       dsa_state->hw_state.stencil_back.compareOp);
      }
      if (dsa_state->base.stencil[0].enabled) {
         if (dsa_state->base.stencil[1].enabled) {
            VKCTX(CmdSetStencilWriteMask)(batch->state->cmdbuf, VK_STENCIL_FACE_FRONT_BIT, dsa_state->hw_state.stencil_front.writeMask);
            VKCTX(CmdSetStencilWriteMask)(batch->state->cmdbuf, VK_STENCIL_FACE_BACK_BIT, dsa_state->hw_state.stencil_back.writeMask);
            VKCTX(CmdSetStencilCompareMask)(batch->state->cmdbuf, VK_STENCIL_FACE_FRONT_BIT, dsa_state->hw_state.stencil_front.compareMask);
            VKCTX(CmdSetStencilCompareMask)(batch->state->cmdbuf, VK_STENCIL_FACE_BACK_BIT, dsa_state->hw_state.stencil_back.compareMask);
         } else {
            VKCTX(CmdSetStencilWriteMask)(batch->state->cmdbuf, VK_STENCIL_FACE_FRONT_AND_BACK, dsa_state->hw_state.stencil_front.writeMask);
            VKCTX(CmdSetStencilCompareMask)(batch->state->cmdbuf, VK_STENCIL_FACE_FRONT_AND_BACK, dsa_state->hw_state.stencil_front.compareMask);
         }
      }
   }
   ctx->dsa_state_changed = false;

   bool rast_state_changed = ctx->rast_state_changed;
   if (DYNAMIC_STATE != ZINK_NO_DYNAMIC_STATE && (BATCH_CHANGED || rast_state_changed))
      VKCTX(CmdSetFrontFaceEXT)(batch->state->cmdbuf, ctx->gfx_pipeline_state.dyn_state1.front_face);
   if ((BATCH_CHANGED || rast_state_changed) &&
       screen->info.have_EXT_line_rasterization && rast_state->base.line_stipple_enable)
      VKCTX(CmdSetLineStippleEXT)(batch->state->cmdbuf, rast_state->base.line_stipple_factor, rast_state->base.line_stipple_pattern);

   if (BATCH_CHANGED || ctx->rast_state_changed || mode_changed) {
      enum pipe_prim_type reduced_prim = ctx->last_vertex_stage->reduced_prim;
      if (reduced_prim == PIPE_PRIM_MAX)
         reduced_prim = u_reduced_prim(mode);

      bool depth_bias = false;
      switch (reduced_prim) {
      case PIPE_PRIM_POINTS:
         depth_bias = rast_state->offset_point;
         break;

      case PIPE_PRIM_LINES:
         depth_bias = rast_state->offset_line;
         break;

      case PIPE_PRIM_TRIANGLES:
         depth_bias = rast_state->offset_tri;
         break;

      default:
         unreachable("unexpected reduced prim");
      }

      VKCTX(CmdSetLineWidth)(batch->state->cmdbuf, rast_state->line_width);
      if (depth_bias)
         VKCTX(CmdSetDepthBias)(batch->state->cmdbuf, rast_state->offset_units, rast_state->offset_clamp, rast_state->offset_scale);
      else
         VKCTX(CmdSetDepthBias)(batch->state->cmdbuf, 0.0f, 0.0f, 0.0f);
   }
   ctx->rast_state_changed = false;

   if (DYNAMIC_STATE != ZINK_NO_DYNAMIC_STATE) {
      if (ctx->sample_locations_changed) {
         VkSampleLocationsInfoEXT loc;
         zink_init_vk_sample_locations(ctx, &loc);
         VKCTX(CmdSetSampleLocationsEXT)(batch->state->cmdbuf, &loc);
      }
      ctx->sample_locations_changed = false;
   }

   if ((BATCH_CHANGED || ctx->blend_state_changed) &&
       ctx->gfx_pipeline_state.blend_state->need_blend_constants) {
      VKCTX(CmdSetBlendConstants)(batch->state->cmdbuf, ctx->blend_constants);
   }
   ctx->blend_state_changed = false;

   if (DRAW_STATE)
      zink_bind_vertex_state(batch, ctx, vstate, partial_velem_mask);
   else if (BATCH_CHANGED || ctx->vertex_buffers_dirty)
      zink_bind_vertex_buffers<DYNAMIC_STATE>(batch, ctx);

   zink_query_update_gs_states(ctx);

   if (BATCH_CHANGED) {
      ctx->pipeline_changed[0] = false;
      zink_select_draw_vbo(ctx);
   }

   if (DYNAMIC_STATE != ZINK_NO_DYNAMIC_STATE) {
      update_gfx_pipeline<BATCH_CHANGED>(ctx, batch->state, mode);
      if (BATCH_CHANGED || mode_changed)
         VKCTX(CmdSetPrimitiveTopologyEXT)(batch->state->cmdbuf, zink_primitive_topology(mode));
   }

   if (DYNAMIC_STATE >= ZINK_DYNAMIC_STATE2 && (BATCH_CHANGED || ctx->primitive_restart != dinfo->primitive_restart)) {
      VKCTX(CmdSetPrimitiveRestartEnableEXT)(batch->state->cmdbuf, dinfo->primitive_restart);
      ctx->primitive_restart = dinfo->primitive_restart;
   }

   if (zink_program_has_descriptors(&ctx->curr_program->base))
      screen->descriptors_update(ctx, false);

   if (ctx->di.any_bindless_dirty && ctx->curr_program->base.dd->bindless)
      zink_descriptors_update_bindless(ctx);

   if (reads_basevertex) {
      unsigned draw_mode_is_indexed = index_size > 0;
      VKCTX(CmdPushConstants)(batch->state->cmdbuf, ctx->curr_program->base.layout, VK_SHADER_STAGE_VERTEX_BIT,
                         offsetof(struct zink_gfx_push_constant, draw_mode_is_indexed), sizeof(unsigned),
                         &draw_mode_is_indexed);
   }
   if (ctx->curr_program->shaders[PIPE_SHADER_TESS_CTRL] && ctx->curr_program->shaders[PIPE_SHADER_TESS_CTRL]->is_generated)
      VKCTX(CmdPushConstants)(batch->state->cmdbuf, ctx->curr_program->base.layout, VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT,
                         offsetof(struct zink_gfx_push_constant, default_inner_level), sizeof(float) * 6,
                         &ctx->tess_levels[0]);

   if (have_streamout) {
      for (unsigned i = 0; i < ctx->num_so_targets; i++) {
         struct zink_so_target *t = zink_so_target(ctx->so_targets[i]);
         counter_buffers[i] = VK_NULL_HANDLE;
         if (t) {
            struct zink_resource *res = zink_resource(t->counter_buffer);
            t->stride = ctx->last_vertex_stage->sinfo.so_info.stride[i] * sizeof(uint32_t);
            zink_batch_reference_resource_rw(batch, res, true);
            if (t->counter_buffer_valid) {
               counter_buffers[i] = res->obj->buffer;
               counter_buffer_offsets[i] = t->counter_buffer_offset;
            }
         }
      }
      VKCTX(CmdBeginTransformFeedbackEXT)(batch->state->cmdbuf, 0, ctx->num_so_targets, counter_buffers, counter_buffer_offsets);
   }

   bool needs_drawid = reads_drawid && zink_get_last_vertex_key(ctx)->push_drawid;
   work_count += num_draws;
   if (index_size > 0) {
      if (dindirect && dindirect->buffer) {
         assert(num_draws == 1);
         if (needs_drawid)
            update_drawid(ctx, drawid_offset);
         struct zink_resource *indirect = zink_resource(dindirect->buffer);
         zink_batch_reference_resource_rw(batch, indirect, false);
         if (dindirect->indirect_draw_count) {
             struct zink_resource *indirect_draw_count = zink_resource(dindirect->indirect_draw_count);
             zink_batch_reference_resource_rw(batch, indirect_draw_count, false);
             VKCTX(CmdDrawIndexedIndirectCount)(batch->state->cmdbuf, indirect->obj->buffer, dindirect->offset,
                                                indirect_draw_count->obj->buffer, dindirect->indirect_draw_count_offset,
                                                dindirect->draw_count, dindirect->stride);
         } else
            VKCTX(CmdDrawIndexedIndirect)(batch->state->cmdbuf, indirect->obj->buffer, dindirect->offset, dindirect->draw_count, dindirect->stride);
      } else {
         if (need_index_buffer_unref)
            draw_indexed_need_index_buffer_unref(ctx, dinfo, draws, num_draws, drawid_offset, needs_drawid);
         else
            draw_indexed<HAS_MULTIDRAW>(ctx, dinfo, draws, num_draws, drawid_offset, needs_drawid);
      }
   } else {
      if (so_target && screen->info.tf_props.transformFeedbackDraw) {
         /* GTF-GL46.gtf40.GL3Tests.transform_feedback2.transform_feedback2_api attempts a bogus xfb
          * draw using a streamout target that has no data
          * to avoid hanging the gpu, reject any such draws
          */
         if (so_target->counter_buffer_valid) {
            if (needs_drawid)
               update_drawid(ctx, drawid_offset);
            zink_batch_reference_resource_rw(batch, zink_resource(so_target->base.buffer), false);
            zink_batch_reference_resource_rw(batch, zink_resource(so_target->counter_buffer), true);
            VKCTX(CmdDrawIndirectByteCountEXT)(batch->state->cmdbuf, dinfo->instance_count, dinfo->start_instance,
                                          zink_resource(so_target->counter_buffer)->obj->buffer, so_target->counter_buffer_offset, 0,
                                          MIN2(so_target->stride, screen->info.tf_props.maxTransformFeedbackBufferDataStride));
         }
      } else if (dindirect && dindirect->buffer) {
         assert(num_draws == 1);
         if (needs_drawid)
            update_drawid(ctx, drawid_offset);
         struct zink_resource *indirect = zink_resource(dindirect->buffer);
         zink_batch_reference_resource_rw(batch, indirect, false);
         if (dindirect->indirect_draw_count) {
             struct zink_resource *indirect_draw_count = zink_resource(dindirect->indirect_draw_count);
             zink_batch_reference_resource_rw(batch, indirect_draw_count, false);
             VKCTX(CmdDrawIndirectCount)(batch->state->cmdbuf, indirect->obj->buffer, dindirect->offset,
                                           indirect_draw_count->obj->buffer, dindirect->indirect_draw_count_offset,
                                           dindirect->draw_count, dindirect->stride);
         } else
            VKCTX(CmdDrawIndirect)(batch->state->cmdbuf, indirect->obj->buffer, dindirect->offset, dindirect->draw_count, dindirect->stride);
      } else {
         draw<HAS_MULTIDRAW>(ctx, dinfo, draws, num_draws, drawid_offset, needs_drawid);
      }
   }

   if (have_streamout) {
      for (unsigned i = 0; i < ctx->num_so_targets; i++) {
         struct zink_so_target *t = zink_so_target(ctx->so_targets[i]);
         if (t) {
            counter_buffers[i] = zink_resource(t->counter_buffer)->obj->buffer;
            counter_buffer_offsets[i] = t->counter_buffer_offset;
            t->counter_buffer_valid = true;
         }
      }
      VKCTX(CmdEndTransformFeedbackEXT)(batch->state->cmdbuf, 0, ctx->num_so_targets, counter_buffers, counter_buffer_offsets);
   }
   batch->has_work = true;
   batch->last_was_compute = false;
   ctx->batch.work_count = work_count;
   /* flush if there's >100k draws */
   if (unlikely(work_count >= 30000) || ctx->oom_flush)
      pctx->flush(pctx, NULL, 0);
}

template <zink_multidraw HAS_MULTIDRAW, zink_dynamic_state DYNAMIC_STATE, bool BATCH_CHANGED>
static void
zink_draw_vbo(struct pipe_context *pctx,
              const struct pipe_draw_info *info,
              unsigned drawid_offset,
              const struct pipe_draw_indirect_info *indirect,
              const struct pipe_draw_start_count_bias *draws,
              unsigned num_draws)
{
   zink_draw<HAS_MULTIDRAW, DYNAMIC_STATE, BATCH_CHANGED, false>(pctx, info, drawid_offset, indirect, draws, num_draws, NULL, 0);
}

template <zink_multidraw HAS_MULTIDRAW, zink_dynamic_state DYNAMIC_STATE, bool BATCH_CHANGED>
static void
zink_draw_vertex_state(struct pipe_context *pctx,
                       struct pipe_vertex_state *vstate,
                       uint32_t partial_velem_mask,
                       struct pipe_draw_vertex_state_info info,
                       const struct pipe_draw_start_count_bias *draws,
                       unsigned num_draws)
{
   struct pipe_draw_info dinfo = {};

   dinfo.mode = info.mode;
   dinfo.index_size = 4;
   dinfo.instance_count = 1;
   dinfo.index.resource = vstate->input.indexbuf;
   struct zink_context *ctx = zink_context(pctx);
   struct zink_resource *res = zink_resource(vstate->input.vbuffer.buffer.resource);
   zink_resource_buffer_barrier(ctx, res, VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT,
                                VK_PIPELINE_STAGE_VERTEX_INPUT_BIT);
   struct zink_vertex_elements_hw_state *hw_state = ctx->gfx_pipeline_state.element_state;
   ctx->gfx_pipeline_state.element_state = &((struct zink_vertex_state*)vstate)->velems.hw_state;

   zink_draw<HAS_MULTIDRAW, DYNAMIC_STATE, BATCH_CHANGED, true>(pctx, &dinfo, 0, NULL, draws, num_draws, vstate, partial_velem_mask);
   ctx->gfx_pipeline_state.element_state = hw_state;

   if (info.take_vertex_state_ownership)
      pipe_vertex_state_reference(&vstate, NULL);
}

template <bool BATCH_CHANGED>
static void
zink_launch_grid(struct pipe_context *pctx, const struct pipe_grid_info *info)
{
   struct zink_context *ctx = zink_context(pctx);
   struct zink_screen *screen = zink_screen(pctx->screen);
   struct zink_batch *batch = &ctx->batch;

   update_barriers(ctx, true);
   if (ctx->memory_barrier)
      zink_flush_memory_barrier(ctx, true);

   if (zink_program_has_descriptors(&ctx->curr_compute->base))
      screen->descriptors_update(ctx, true);
   if (ctx->di.any_bindless_dirty && ctx->curr_compute->base.dd->bindless)
      zink_descriptors_update_bindless(ctx);

   zink_program_update_compute_pipeline_state(ctx, ctx->curr_compute, info->block);
   VkPipeline prev_pipeline = ctx->compute_pipeline_state.pipeline;
   VkPipeline pipeline = zink_get_compute_pipeline(screen, ctx->curr_compute,
                                               &ctx->compute_pipeline_state);

   if (BATCH_CHANGED) {
      zink_update_descriptor_refs(ctx, true);
      zink_batch_reference_program(&ctx->batch, &ctx->curr_compute->base);
   }

   if (ctx->dirty_shader_stages & BITFIELD_BIT(PIPE_SHADER_COMPUTE)) {
      /* update inlinable constants */
      zink_update_compute_program(ctx);
      ctx->dirty_shader_stages &= ~BITFIELD_BIT(PIPE_SHADER_COMPUTE);
   }

   if (prev_pipeline != pipeline || BATCH_CHANGED)
      VKCTX(CmdBindPipeline)(batch->state->cmdbuf, VK_PIPELINE_BIND_POINT_COMPUTE, pipeline);
   if (BATCH_CHANGED) {
      ctx->pipeline_changed[1] = false;
      zink_select_launch_grid(ctx);
   }

   if (BITSET_TEST(ctx->compute_stage->nir->info.system_values_read, SYSTEM_VALUE_WORK_DIM))
      VKCTX(CmdPushConstants)(batch->state->cmdbuf, ctx->curr_compute->base.layout, VK_SHADER_STAGE_COMPUTE_BIT,
                         offsetof(struct zink_cs_push_constant, work_dim), sizeof(uint32_t),
                         &info->work_dim);

   batch->work_count++;
   zink_batch_no_rp(ctx);
   if (info->indirect) {
      /*
         VK_ACCESS_INDIRECT_COMMAND_READ_BIT specifies read access to indirect command data read as
         part of an indirect build, trace, drawing or dispatching command. Such access occurs in the
         VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT pipeline stage.

         - Chapter 7. Synchronization and Cache Control
       */
      check_buffer_barrier(ctx, info->indirect, VK_ACCESS_INDIRECT_COMMAND_READ_BIT, VK_PIPELINE_STAGE_DRAW_INDIRECT_BIT);
      VKCTX(CmdDispatchIndirect)(batch->state->cmdbuf, zink_resource(info->indirect)->obj->buffer, info->indirect_offset);
      zink_batch_reference_resource_rw(batch, zink_resource(info->indirect), false);
   } else
      VKCTX(CmdDispatch)(batch->state->cmdbuf, info->grid[0], info->grid[1], info->grid[2]);
   batch->has_work = true;
   batch->last_was_compute = true;
   /* flush if there's >100k computes */
   if (unlikely(ctx->batch.work_count >= 30000) || ctx->oom_flush)
      pctx->flush(pctx, NULL, 0);
}

template <zink_multidraw HAS_MULTIDRAW, zink_dynamic_state DYNAMIC_STATE, bool BATCH_CHANGED>
static void
init_batch_changed_functions(struct zink_context *ctx, pipe_draw_vbo_func draw_vbo_array[2][4][2], pipe_draw_vertex_state_func draw_state_array[2][4][2])
{
   draw_vbo_array[HAS_MULTIDRAW][DYNAMIC_STATE][BATCH_CHANGED] = zink_draw_vbo<HAS_MULTIDRAW, DYNAMIC_STATE, BATCH_CHANGED>;
   draw_state_array[HAS_MULTIDRAW][DYNAMIC_STATE][BATCH_CHANGED] = zink_draw_vertex_state<HAS_MULTIDRAW, DYNAMIC_STATE, BATCH_CHANGED>;
}

template <zink_multidraw HAS_MULTIDRAW, zink_dynamic_state DYNAMIC_STATE>
static void
init_dynamic_state_functions(struct zink_context *ctx, pipe_draw_vbo_func draw_vbo_array[2][4][2], pipe_draw_vertex_state_func draw_state_array[2][4][2])
{
   init_batch_changed_functions<HAS_MULTIDRAW, DYNAMIC_STATE, false>(ctx, draw_vbo_array, draw_state_array);
   init_batch_changed_functions<HAS_MULTIDRAW, DYNAMIC_STATE, true>(ctx, draw_vbo_array, draw_state_array);
}

template <zink_multidraw HAS_MULTIDRAW>
static void
init_multidraw_functions(struct zink_context *ctx, pipe_draw_vbo_func draw_vbo_array[2][4][2], pipe_draw_vertex_state_func draw_state_array[2][4][2])
{
   init_dynamic_state_functions<HAS_MULTIDRAW, ZINK_NO_DYNAMIC_STATE>(ctx, draw_vbo_array, draw_state_array);
   init_dynamic_state_functions<HAS_MULTIDRAW, ZINK_DYNAMIC_STATE>(ctx, draw_vbo_array, draw_state_array);
   init_dynamic_state_functions<HAS_MULTIDRAW, ZINK_DYNAMIC_STATE2>(ctx, draw_vbo_array, draw_state_array);
   init_dynamic_state_functions<HAS_MULTIDRAW, ZINK_DYNAMIC_VERTEX_INPUT>(ctx, draw_vbo_array, draw_state_array);
}

static void
init_all_draw_functions(struct zink_context *ctx, pipe_draw_vbo_func draw_vbo_array[2][4][2], pipe_draw_vertex_state_func draw_state_array[2][4][2])
{
   init_multidraw_functions<ZINK_NO_MULTIDRAW>(ctx, draw_vbo_array, draw_state_array);
   init_multidraw_functions<ZINK_MULTIDRAW>(ctx, draw_vbo_array, draw_state_array);
}

template <bool BATCH_CHANGED>
static void
init_grid_batch_changed_functions(struct zink_context *ctx)
{
   ctx->launch_grid[BATCH_CHANGED] = zink_launch_grid<BATCH_CHANGED>;
}

static void
init_all_grid_functions(struct zink_context *ctx)
{
   init_grid_batch_changed_functions<false>(ctx);
   init_grid_batch_changed_functions<true>(ctx);
}

static void
zink_invalid_draw_vbo(struct pipe_context *pipe,
                      const struct pipe_draw_info *dinfo,
                      unsigned drawid_offset,
                      const struct pipe_draw_indirect_info *dindirect,
                      const struct pipe_draw_start_count_bias *draws,
                      unsigned num_draws)
{
   unreachable("vertex shader not bound");
}

static void
zink_invalid_draw_vertex_state(struct pipe_context *pipe,
                               struct pipe_vertex_state *vstate,
                               uint32_t partial_velem_mask,
                               struct pipe_draw_vertex_state_info info,
                               const struct pipe_draw_start_count_bias *draws,
                               unsigned num_draws)
{
   unreachable("vertex shader not bound");
}

static void
zink_invalid_launch_grid(struct pipe_context *pctx, const struct pipe_grid_info *info)
{
   unreachable("compute shader not bound");
}

template <unsigned STAGE_MASK>
static uint32_t
hash_gfx_program(const void *key)
{
   const struct zink_shader **shaders = (const struct zink_shader**)key;
   uint32_t base_hash = shaders[PIPE_SHADER_VERTEX]->hash ^ shaders[PIPE_SHADER_FRAGMENT]->hash;
   if (STAGE_MASK == 0) //VS+FS
      return base_hash;
   if (STAGE_MASK == 1) //VS+GS+FS
      return base_hash ^ shaders[PIPE_SHADER_GEOMETRY]->hash;
   /*VS+TCS+FS isn't a thing */
   /*VS+TCS+GS+FS isn't a thing */
   if (STAGE_MASK == 4) //VS+TES+FS
      return base_hash ^ shaders[PIPE_SHADER_TESS_EVAL]->hash;
   if (STAGE_MASK == 5) //VS+TES+GS+FS
      return base_hash ^ shaders[PIPE_SHADER_GEOMETRY]->hash ^ shaders[PIPE_SHADER_TESS_EVAL]->hash;
   if (STAGE_MASK == 6) //VS+TCS+TES+FS
      return base_hash ^ shaders[PIPE_SHADER_TESS_CTRL]->hash ^ shaders[PIPE_SHADER_TESS_EVAL]->hash;

   /* all stages */
   return base_hash ^ shaders[PIPE_SHADER_GEOMETRY]->hash ^ shaders[PIPE_SHADER_TESS_CTRL]->hash ^ shaders[PIPE_SHADER_TESS_EVAL]->hash;
}

template <unsigned STAGE_MASK>
static bool
equals_gfx_program(const void *a, const void *b)
{
   const void **sa = (const void**)a;
   const void **sb = (const void**)b;
   if (STAGE_MASK == 0) //VS+FS
      return !memcmp(a, b, sizeof(void*) * 2);
   if (STAGE_MASK == 1) //VS+GS+FS
      return !memcmp(a, b, sizeof(void*) * 3);
   /*VS+TCS+FS isn't a thing */
   /*VS+TCS+GS+FS isn't a thing */
   if (STAGE_MASK == 4) //VS+TES+FS
      return sa[PIPE_SHADER_TESS_EVAL] == sb[PIPE_SHADER_TESS_EVAL] && !memcmp(a, b, sizeof(void*) * 2);
   if (STAGE_MASK == 5) //VS+TES+GS+FS
      return sa[PIPE_SHADER_TESS_EVAL] == sb[PIPE_SHADER_TESS_EVAL] && !memcmp(a, b, sizeof(void*) * 3);
   if (STAGE_MASK == 6) //VS+TCS+TES+FS
      return !memcmp(&sa[PIPE_SHADER_TESS_CTRL], &sb[PIPE_SHADER_TESS_CTRL], sizeof(void*) * 2) &&
             !memcmp(a, b, sizeof(void*) * 2);

   /* all stages */
   return !memcmp(a, b, sizeof(void*) * ZINK_SHADER_COUNT);
}

extern "C"
void
zink_init_draw_functions(struct zink_context *ctx, struct zink_screen *screen)
{
   pipe_draw_vbo_func draw_vbo_array[2][4] //multidraw, zink_dynamic_state
                                    [2];   //batch changed
   pipe_draw_vertex_state_func draw_state_array[2][4] //multidraw, zink_dynamic_state
                                               [2];   //batch changed
   zink_dynamic_state dynamic;
   if (screen->info.have_EXT_extended_dynamic_state) {
      if (screen->info.have_EXT_extended_dynamic_state2) {
         if (screen->info.have_EXT_vertex_input_dynamic_state)
            dynamic = ZINK_DYNAMIC_VERTEX_INPUT;
         else
            dynamic = ZINK_DYNAMIC_STATE2;
      } else {
         dynamic = ZINK_DYNAMIC_STATE;
      }
   } else {
      dynamic = ZINK_NO_DYNAMIC_STATE;
   }
   init_all_draw_functions(ctx, draw_vbo_array, draw_state_array);
   memcpy(ctx->draw_vbo, &draw_vbo_array[screen->info.have_EXT_multi_draw]
                                        [dynamic],
                                        sizeof(ctx->draw_vbo));
   memcpy(ctx->draw_state, &draw_state_array[screen->info.have_EXT_multi_draw]
                                          [dynamic],
                                          sizeof(ctx->draw_state));

   /* Bind a fake draw_vbo, so that draw_vbo isn't NULL, which would skip
    * initialization of callbacks in upper layers (such as u_threaded_context).
    */
   ctx->base.draw_vbo = zink_invalid_draw_vbo;
   ctx->base.draw_vertex_state = zink_invalid_draw_vertex_state;

   _mesa_hash_table_init(&ctx->program_cache[0], ctx, hash_gfx_program<0>, equals_gfx_program<0>);
   _mesa_hash_table_init(&ctx->program_cache[1], ctx, hash_gfx_program<1>, equals_gfx_program<1>);
   _mesa_hash_table_init(&ctx->program_cache[2], ctx, hash_gfx_program<2>, equals_gfx_program<2>);
   _mesa_hash_table_init(&ctx->program_cache[3], ctx, hash_gfx_program<3>, equals_gfx_program<3>);
   _mesa_hash_table_init(&ctx->program_cache[4], ctx, hash_gfx_program<4>, equals_gfx_program<4>);
   _mesa_hash_table_init(&ctx->program_cache[5], ctx, hash_gfx_program<5>, equals_gfx_program<5>);
   _mesa_hash_table_init(&ctx->program_cache[6], ctx, hash_gfx_program<6>, equals_gfx_program<6>);
   _mesa_hash_table_init(&ctx->program_cache[7], ctx, hash_gfx_program<7>, equals_gfx_program<7>);
}

void
zink_init_grid_functions(struct zink_context *ctx)
{
   init_all_grid_functions(ctx);
   /* Bind a fake launch_grid, so that draw_vbo isn't NULL, which would skip
    * initialization of callbacks in upper layers (such as u_threaded_context).
    */
   ctx->base.launch_grid = zink_invalid_launch_grid;
}
