draw: add nir info gathering and building support

Reviewed-by: Roland Scheidegger <sroland@vmware.com>

src/gallium/auxiliary/draw/draw_fs.c

@@ -32,6 +32,7 @@
 #include "util/u_prim.h"
 
 #include "tgsi/tgsi_parse.h"
+#include "nir/nir_to_tgsi_info.h"
 
 #include "draw_fs.h"
 #include "draw_private.h"
@@ -47,7 +48,10 @@ draw_create_fragment_shader(struct draw_context *draw,
    dfs = CALLOC_STRUCT(draw_fragment_shader);
    if (dfs) {
       dfs->base = *shader;
+      if (shader->type == PIPE_SHADER_IR_TGSI)
          tgsi_scan_shader(shader->tokens, &dfs->info);
+      else
+         nir_tgsi_scan_shader(shader->ir.nir, &dfs->info, false);
    }
 
    return dfs;

src/gallium/auxiliary/draw/draw_gs.c

@@ -35,7 +35,7 @@
 
 #include "tgsi/tgsi_parse.h"
 #include "tgsi/tgsi_exec.h"
-
+#include "nir/nir_to_tgsi_info.h"
 #include "pipe/p_shader_tokens.h"
 
 #include "util/u_math.h"
@@ -793,6 +793,8 @@ draw_create_geometry_shader(struct draw_context *draw,
 
    gs->draw = draw;
    gs->state = *state;
+
+   if (state->type == PIPE_SHADER_IR_TGSI) {
       gs->state.tokens = tgsi_dup_tokens(state->tokens);
       if (!gs->state.tokens) {
          FREE(gs);
@@ -800,6 +802,8 @@ draw_create_geometry_shader(struct draw_context *draw,
       }
 
       tgsi_scan_shader(state->tokens, &gs->info);
+   } else
+      nir_tgsi_scan_shader(state->ir.nir, &gs->info, false);
 
    /* setup the defaults */
    gs->max_out_prims = 0;

src/gallium/auxiliary/draw/draw_llvm.c

@@ -43,6 +43,7 @@
 #include "gallivm/lp_bld_flow.h"
 #include "gallivm/lp_bld_debug.h"
 #include "gallivm/lp_bld_tgsi.h"
+#include "gallivm/lp_bld_nir.h"
 #include "gallivm/lp_bld_printf.h"
 #include "gallivm/lp_bld_intr.h"
 #include "gallivm/lp_bld_init.h"
@@ -646,7 +647,10 @@ draw_llvm_create_variant(struct draw_llvm *llvm,
    memcpy(&variant->key, key, shader->variant_key_size);
 
    if (gallivm_debug & (GALLIVM_DEBUG_TGSI | GALLIVM_DEBUG_IR)) {
+      if (llvm->draw->vs.vertex_shader->state.type == PIPE_SHADER_IR_TGSI)
          tgsi_dump(llvm->draw->vs.vertex_shader->state.tokens, 0);
+      else
+         nir_print_shader(llvm->draw->vs.vertex_shader->state.ir.nir, stderr);
       draw_llvm_dump_variant_key(&variant->key);
    }
 
@@ -712,6 +716,13 @@ generate_vs(struct draw_llvm_variant *variant,
    params.ssbo_sizes_ptr = num_ssbos_ptr;
    params.image = draw_image;
 
+   if (llvm->draw->vs.vertex_shader->state.ir.nir &&
+       llvm->draw->vs.vertex_shader->state.type == PIPE_SHADER_IR_NIR)
+      lp_build_nir_soa(variant->gallivm,
+                       llvm->draw->vs.vertex_shader->state.ir.nir,
+                       &params,
+                       outputs);
+   else
       lp_build_tgsi_soa(variant->gallivm,
                         tokens,
                         &params,
@@ -2495,7 +2506,10 @@ draw_gs_llvm_generate(struct draw_llvm *llvm,
    }
 
    if (gallivm_debug & (GALLIVM_DEBUG_TGSI | GALLIVM_DEBUG_IR)) {
+      if (llvm->draw->gs.geometry_shader->state.type == PIPE_SHADER_IR_TGSI)
          tgsi_dump(tokens, 0);
+      else
+         nir_print_shader(llvm->draw->gs.geometry_shader->state.ir.nir, stderr);
       draw_gs_llvm_dump_variant_key(&variant->key);
    }
 
@@ -2515,10 +2529,16 @@ draw_gs_llvm_generate(struct draw_llvm *llvm,
    params.ssbo_sizes_ptr = num_ssbos_ptr;
    params.image = image;
 
+   if (llvm->draw->gs.geometry_shader->state.type == PIPE_SHADER_IR_TGSI)
       lp_build_tgsi_soa(variant->gallivm,
                         tokens,
                         &params,
                         outputs);
+   else
+      lp_build_nir_soa(variant->gallivm,
+                       llvm->draw->gs.geometry_shader->state.ir.nir,
+                       &params,
+                       outputs);
 
    sampler->destroy(sampler);
    image->destroy(image);

src/gallium/auxiliary/draw/draw_vs_exec.c

@@ -230,6 +230,7 @@ draw_create_vs_exec(struct draw_context *draw,
 
    tgsi_scan_shader(state->tokens, &vs->base.info);
 
+   vs->base.state.type = state->type;
    vs->base.state.stream_output = state->stream_output;
    vs->base.draw = draw;
    vs->base.prepare = vs_exec_prepare;

src/gallium/auxiliary/draw/draw_vs_llvm.c

@@ -37,7 +37,7 @@
 
 #include "tgsi/tgsi_parse.h"
 #include "tgsi/tgsi_scan.h"
-
+#include "nir/nir_to_tgsi_info.h"
 static void
 vs_llvm_prepare(struct draw_vertex_shader *shader,
                 struct draw_context *draw)
@@ -90,6 +90,11 @@ draw_create_vs_llvm(struct draw_context *draw,
    if (!vs)
       return NULL;
 
+   /* due to some bugs in the feedback state tracker we have to check
+      for ir.nir & PIPE_SHADER_IR_NIR here. */
+   if (state->ir.nir && state->type == PIPE_SHADER_IR_NIR)
+      nir_tgsi_scan_shader(state->ir.nir, &vs->base.info, false);
+   else {
       /* we make a private copy of the tokens */
       vs->base.state.tokens = tgsi_dup_tokens(state->tokens);
       if (!vs->base.state.tokens) {
@@ -98,6 +103,7 @@ draw_create_vs_llvm(struct draw_context *draw,
       }
 
       tgsi_scan_shader(state->tokens, &vs->base.info);
+   }
 
    vs->variant_key_size = 
       draw_llvm_variant_key_size(
@@ -106,6 +112,8 @@ draw_create_vs_llvm(struct draw_context *draw,
               vs->base.info.file_max[TGSI_FILE_SAMPLER_VIEW]+1),
          vs->base.info.file_max[TGSI_FILE_IMAGE]+1);
 
+   vs->base.state.type = state->type;
+   vs->base.state.ir.nir = state->ir.nir;
    vs->base.state.stream_output = state->stream_output;
    vs->base.draw = draw;
    vs->base.prepare = vs_llvm_prepare;