[Mesa-dev] [PATCH 1/8] i965: get uses texture gather from nir info

[Timothy Arceri]

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.
---
 src/mesa/drivers/dri/i965/brw_shader.cpp         |  2 +-
 src/mesa/drivers/dri/i965/brw_wm.c               |  5 +++--
 src/mesa/drivers/dri/i965/brw_wm_surface_state.c | 13 +++++++------
 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 17e95bc..ed81563 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 64cfd98..a70e806 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 91712c7..410e3f4 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"
@@ -1282,15 +1283,15 @@ 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);
    }
 
@@ -1335,7 +1336,7 @@ 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);
    }
 
-- 
2.7.4