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i965: Use NIR to lower legacy userclipping.

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This allows us to drop legacy userclip plane handling in both the vec4
and FS backends, and simplifies a few interfaces.

v2 (Jason Ekstrand):
 - Move brw_nir_lower_legacy_clipping to brw_nir_uniforms.cpp because
   it's i965-specific.
 - Handle adding the params in brw_nir_lower_legacy_clipping
 - Call brw_nir_lower_legacy_clipping from brw_codegen_vs_prog

Co-authored-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kenneth Graunke
2017-05-21 01:36:14 -07:00
committed by Jason Ekstrand
parent d10de25309
commit 517005b4cf
9 changed files with 64 additions and 158 deletions
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src/intel/compiler/brw_nir.h
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@@ -102,6 +102,9 @@ brw_nir_link_shaders(const struct brw_compiler *compiler,
bool brw_nir_lower_cs_intrinsics(nir_shader *nir,
unsigned dispatch_width);
void brw_nir_lower_legacy_clipping(nir_shader *nir,
int nr_userclip_plane_consts,
struct brw_stage_prog_data *prog_data);
void brw_nir_lower_vs_inputs(nir_shader *nir,
const uint8_t *vs_attrib_wa_flags);
void brw_nir_lower_vue_inputs(nir_shader *nir,