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i965: Store a clip_distance_mask field similar to cull_distance_mask.

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This isn't useful for legacy GL, but will be used in Vulkan.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Kenneth Graunke 2016-10-03 23:41:09 -07:00
parent 19c652b29c
commit a1a292d177
4 changed files with 7 additions and 0 deletions
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1
src/mesa/drivers/dri/i965/brw_compiler.h
View file

@ -626,6 +626,7 @@ struct brw_vue_prog_data {
GLuint urb_read_length;
GLuint total_grf;
uint32_t clip_distance_mask;
uint32_t cull_distance_mask;
/* Used for calculating urb partitions. In the VS, this is the size of the

2
src/mesa/drivers/dri/i965/brw_shader.cpp
View file

@ -1376,6 +1376,8 @@ brw_compile_tes(const struct brw_compiler *compiler,
return NULL;
}
prog_data->base.clip_distance_mask =
((1 << nir->info->clip_distance_array_size) - 1);
prog_data->base.cull_distance_mask =
((1 << nir->info->cull_distance_array_size) - 1) <<
nir->info->clip_distance_array_size;

2
src/mesa/drivers/dri/i965/brw_vec4.cpp
View file

@ -2121,6 +2121,8 @@ brw_compile_vs(const struct brw_compiler *compiler, void *log_data,
const unsigned *assembly = NULL;
prog_data->base.clip_distance_mask =
((1 << shader->info->clip_distance_array_size) - 1);
prog_data->base.cull_distance_mask =
((1 << shader->info->cull_distance_array_size) - 1) <<
shader->info->clip_distance_array_size;

2
src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
View file

@ -621,6 +621,8 @@ brw_compile_gs(const struct brw_compiler *compiler, void *log_data,
brw_nir_lower_vue_outputs(shader, is_scalar);
shader = brw_postprocess_nir(shader, compiler->devinfo, is_scalar);
prog_data->base.clip_distance_mask =
((1 << shader->info->clip_distance_array_size) - 1);
prog_data->base.cull_distance_mask =
((1 << shader->info->cull_distance_array_size) - 1) <<
shader->info->clip_distance_array_size;