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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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3
src/intel/compiler/brw_fs.h
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@@ -80,8 +80,6 @@ public:
fs_reg vgrf(const glsl_type *const type);
void import_uniforms(fs_visitor *v);
void setup_uniform_clipplane_values();
void compute_clip_distance();
void VARYING_PULL_CONSTANT_LOAD(const brw::fs_builder &bld,
const fs_reg &dst,
@@ -380,7 +378,6 @@ public:
fs_reg pixel_w;
fs_reg delta_xy[BRW_BARYCENTRIC_MODE_COUNT];
fs_reg shader_start_time;
fs_reg userplane[MAX_CLIP_PLANES];
fs_reg final_gs_vertex_count;
fs_reg control_data_bits;
fs_reg invocation_id;