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st/mesa: don't load state parameters if there are none

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Out of 7063 shaders from my shader-db:
- 6564 (93%) shaders don't have any state parameters.
- 347 (5%) shaders have 1 state parameter for WPOS lowering.
- The remaining 2% have more state parameters, usually matrices.

Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Marek Olšák 2015-10-22 19:46:07 +02:00
parent 98546bfd03
commit dd05824b89
1 changed files with 2 additions and 1 deletions
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3
src/mesa/state_tracker/st_atom_constbuf.c
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@ -73,7 +73,8 @@ void st_upload_constants( struct st_context *st,
* the parameters list are explicitly set by the user with glUniform,
* glProgramParameter(), etc.
*/
_mesa_load_state_parameters(st->ctx, params);
if (params->StateFlags)
_mesa_load_state_parameters(st->ctx, params);
/* We always need to get a new buffer, to keep the drivers simple and
* avoid gratuitous rendering synchronization.