nir/lower_tex: support projector lowering per sampler type

Some hardware, such as adreno a3xx, supports txp on some but not all
sampler types.  In this case we want more fine grained control over
which texture projectors get lowered.

v2: split out nir_lower_tex_options struct to make it easier to
add the additional parameters coming in the following patches

Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_nir.c b/src/mesa/drivers/dri/i965/brw_nir.c
index 0d5b6dd7291..b47b87e07dd 100644
--- a/src/mesa/drivers/dri/i965/brw_nir.c
+++ b/src/mesa/drivers/dri/i965/brw_nir.c
@@ -80,6 +80,9 @@ brw_create_nir(struct brw_context *brw,
    struct gl_context *ctx = &brw->ctx;
    const nir_shader_compiler_options *options =
       ctx->Const.ShaderCompilerOptions[stage].NirOptions;
+   static const nir_lower_tex_options tex_options = {
+      .lower_txp = ~0,
+   };
    struct gl_shader *shader = shader_prog ? shader_prog->_LinkedShaders[stage] : NULL;
    bool debug_enabled = INTEL_DEBUG & intel_debug_flag_for_shader_stage(stage);
    nir_shader *nir;
@@ -96,7 +99,7 @@ brw_create_nir(struct brw_context *brw,
    nir_lower_global_vars_to_local(nir);
    nir_validate_shader(nir);
 
-   nir_lower_tex(nir);
+   nir_lower_tex(nir, &tex_options);
    nir_validate_shader(nir);
 
    nir_normalize_cubemap_coords(nir);