i965: get uses texture gather from nir info

This is a step towards dropping the GLSL IR version of
do_set_program_inouts() in i965 and moving towards native nir support.

This is important because we want to eventually convert to nir and
use its optimisations passes before we can call this GLSL IR pass.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

3 files changed, 11 insertions, 9 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp
index 17e95bcb1f..ed81563584 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.cpp
+++ b/src/mesa/drivers/dri/i965/brw_shader.cpp
@@ -1212,7 +1212,7 @@ brw_assign_common_binding_table_offsets(gl_shader_stage stage,
       stage_prog_data->binding_table.shader_time_start = 0xd0d0d0d0;
    }
 
-   if (prog->UsesGather) {
+   if (prog->nir->info.uses_texture_gather) {
       if (devinfo->gen >= 8) {
          stage_prog_data->binding_table.gather_texture_start =
             stage_prog_data->binding_table.texture_start;
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 5da1a3622e..b0167d2245 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -356,7 +356,8 @@ brw_populate_sampler_prog_key_data(struct gl_context *ctx,
          /* gather4's channel select for green from RG32F is broken; requires
           * a shader w/a on IVB; fixable with just SCS on HSW.
           */
-         if (brw->gen == 7 && !brw->is_haswell && prog->UsesGather) {
+         if (brw->gen == 7 && !brw->is_haswell &&
+             prog->nir->info.uses_texture_gather) {
             if (img->InternalFormat == GL_RG32F)
                key->gather_channel_quirk_mask |= 1 << s;
          }
@@ -364,7 +365,7 @@ brw_populate_sampler_prog_key_data(struct gl_context *ctx,
          /* Gen6's gather4 is broken for UINT/SINT; we treat them as
           * UNORM/FLOAT instead and fix it in the shader.
           */
-         if (brw->gen == 6 && prog->UsesGather) {
+         if (brw->gen == 6 && prog->nir->info.uses_texture_gather) {
             key->gen6_gather_wa[s] = gen6_gather_workaround(img->InternalFormat);
          }
 
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 8d5d9a2040..6ea3b04e14 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -30,6 +30,7 @@
   */
 
 
+#include "compiler/nir/nir.h"
 #include "main/context.h"
 #include "main/blend.h"
 #include "main/mtypes.h"
@@ -1289,15 +1290,15 @@ brw_update_texture_surfaces(struct brw_context *brw)
     * allows the surface format to be overriden for only the
     * gather4 messages. */
    if (brw->gen < 8) {
-      if (vs && vs->UsesGather)
+      if (vs && vs->nir->info.uses_texture_gather)
          update_stage_texture_surfaces(brw, vs, &brw->vs.base, true, 0);
-      if (tcs && tcs->UsesGather)
+      if (tcs && tcs->nir->info.uses_texture_gather)
          update_stage_texture_surfaces(brw, tcs, &brw->tcs.base, true, 0);
-      if (tes && tes->UsesGather)
+      if (tes && tes->nir->info.uses_texture_gather)
          update_stage_texture_surfaces(brw, tes, &brw->tes.base, true, 0);
-      if (gs && gs->UsesGather)
+      if (gs && gs->nir->info.uses_texture_gather)
          update_stage_texture_surfaces(brw, gs, &brw->gs.base, true, 0);
-      if (fs && fs->UsesGather)
+      if (fs && fs->nir->info.uses_texture_gather)
          update_stage_texture_surfaces(brw, fs, &brw->wm.base, true, 0);
    }
 
@@ -1342,7 +1343,7 @@ brw_update_cs_texture_surfaces(struct brw_context *brw)
     * gather4 messages.
     */
    if (brw->gen < 8) {
-      if (cs && cs->UsesGather)
+      if (cs && cs->nir->info.uses_texture_gather)
          update_stage_texture_surfaces(brw, cs, &brw->cs.base, true, 0);
    }