i965: Use info->textures_used instead of prog->SamplersUsed.

prog->SamplersUsed is set by the linker when validating resource limits,
while info->textures_used is gathered after NIR optimizations, which may
have eliminated some unused surfaces.

This may let us skip some work.

Reviewed-by: Eric Anholt <eric@anholt.net>

diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c
index c3102e3..40bcf82 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -815,15 +815,15 @@ brw_prepare_drawing(struct gl_context *ctx,
     * index.
     */
    brw->wm.base.sampler_count =
-      util_last_bit(ctx->FragmentProgram._Current->SamplersUsed);
+      util_last_bit(ctx->FragmentProgram._Current->info.textures_used);
    brw->gs.base.sampler_count = ctx->GeometryProgram._Current ?
-      util_last_bit(ctx->GeometryProgram._Current->SamplersUsed) : 0;
+      util_last_bit(ctx->GeometryProgram._Current->info.textures_used) : 0;
    brw->tes.base.sampler_count = ctx->TessEvalProgram._Current ?
-      util_last_bit(ctx->TessEvalProgram._Current->SamplersUsed) : 0;
+      util_last_bit(ctx->TessEvalProgram._Current->info.textures_used) : 0;
    brw->tcs.base.sampler_count = ctx->TessCtrlProgram._Current ?
-      util_last_bit(ctx->TessCtrlProgram._Current->SamplersUsed) : 0;
+      util_last_bit(ctx->TessCtrlProgram._Current->info.textures_used) : 0;
    brw->vs.base.sampler_count =
-      util_last_bit(ctx->VertexProgram._Current->SamplersUsed);
+      util_last_bit(ctx->VertexProgram._Current->info.textures_used);
 
    intel_prepare_render(brw);
 

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 b067a17..ece3197 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -1171,11 +1171,11 @@ update_stage_texture_surfaces(struct brw_context *brw,
    else
       surf_offset += stage_state->prog_data->binding_table.plane_start[plane];
 
-   unsigned num_samplers = util_last_bit(prog->SamplersUsed);
+   unsigned num_samplers = util_last_bit(prog->info.textures_used);
    for (unsigned s = 0; s < num_samplers; s++) {
       surf_offset[s] = 0;
 
-      if (prog->SamplersUsed & (1 << s)) {
+      if (prog->info.textures_used & (1 << s)) {
          const unsigned unit = prog->SamplerUnits[s];
          const bool used_by_txf = prog->info.textures_used_by_txf & (1 << s);
          struct gl_texture_object *obj = ctx->Texture.Unit[unit]._Current;