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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_nir.cpp11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index 98ea70ca842..0b8ed1a8b83 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -1744,6 +1744,7 @@ fs_visitor::nir_emit_texture(nir_tex_instr *instr)
int lod_components = 0, offset_components = 0;
fs_reg coordinate, shadow_comparitor, lod, lod2, sample_index, mcs, tex_offset;
+ fs_reg projector;
for (unsigned i = 0; i < instr->num_srcs; i++) {
fs_reg src = get_nir_src(instr->src[i].src);
@@ -1796,7 +1797,8 @@ fs_visitor::nir_emit_texture(nir_tex_instr *instr)
offset_components = instr->coord_components;
break;
case nir_tex_src_projector:
- unreachable("should be lowered");
+ projector = retype(src, BRW_REGISTER_TYPE_F);
+ break;
case nir_tex_src_sampler_offset: {
/* Figure out the highest possible sampler index and mark it as used */
@@ -1820,6 +1822,13 @@ fs_visitor::nir_emit_texture(nir_tex_instr *instr)
}
}
+ if (projector.file != BAD_FILE) {
+ fs_reg invproj = vgrf(glsl_type::float_type);
+ emit_math(SHADER_OPCODE_RCP, invproj, projector);
+ for (int i = 0; i < 3; i++)
+ emit(MUL(offset(coordinate, i), offset(coordinate, i), invproj));
+ }
+
if (instr->op == nir_texop_txf_ms) {
if (brw->gen >= 7 &&
key_tex->compressed_multisample_layout_mask & (1 << sampler)) {