Reviewed-by: Iago Toral Quiroga <ito...@igalia.com>

On Wed, 2015-09-30 at 18:41 -0700, Jason Ekstrand wrote:
> The next commit will add code to codegen_vs_prog that requires the NIR
> shader to be there in all cases.  It doesn't hurt anything to just move it
> from brw_vs_emit to its only caller.
> ---
>  src/mesa/drivers/dri/i965/brw_vec4.cpp | 12 ------------
>  src/mesa/drivers/dri/i965/brw_vs.c     | 13 +++++++++++++
>  2 files changed, 13 insertions(+), 12 deletions(-)
> 
> diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp 
> b/src/mesa/drivers/dri/i965/brw_vec4.cpp
> index 056ce39..407698f 100644
> --- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
> +++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
> @@ -1953,18 +1953,6 @@ brw_vs_emit(struct brw_context *brw,
>     if (unlikely(INTEL_DEBUG & DEBUG_VS))
>        brw_dump_ir("vertex", prog, &shader->base, &vp->Base);
>  
> -   if (!vp->Base.nir) {
> -      /* Normally we generate NIR in LinkShader() or
> -       * ProgramStringNotify(), but Mesa's fixed-function vertex program
> -       * handling doesn't notify the driver at all.  Just do it here, at
> -       * the last minute, even though it's lame.
> -       */
> -      assert(vp->Base.Id == 0 && prog == NULL);
> -      vp->Base.nir =
> -         brw_create_nir(brw, NULL, &vp->Base, MESA_SHADER_VERTEX,
> -                        brw->intelScreen->compiler->scalar_vs);
> -   }
> -
>     if (brw->intelScreen->compiler->scalar_vs) {
>        prog_data->base.dispatch_mode = DISPATCH_MODE_SIMD8;
>  
> diff --git a/src/mesa/drivers/dri/i965/brw_vs.c 
> b/src/mesa/drivers/dri/i965/brw_vs.c
> index 0a348a5..e1a0d9c 100644
> --- a/src/mesa/drivers/dri/i965/brw_vs.c
> +++ b/src/mesa/drivers/dri/i965/brw_vs.c
> @@ -37,6 +37,7 @@
>  #include "brw_state.h"
>  #include "program/prog_print.h"
>  #include "program/prog_parameter.h"
> +#include "brw_nir.h"
>  
>  #include "util/ralloc.h"
>  
> @@ -81,6 +82,18 @@ brw_codegen_vs_prog(struct brw_context *brw,
>     bool start_busy = false;
>     double start_time = 0;
>  
> +   if (!vp->program.Base.nir) {
> +      /* Normally we generate NIR in LinkShader() or
> +       * ProgramStringNotify(), but Mesa's fixed-function vertex program
> +       * handling doesn't notify the driver at all.  Just do it here, at
> +       * the last minute, even though it's lame.
> +       */
> +      assert(vp->program.Base.Id == 0 && prog == NULL);
> +      vp->program.Base.nir =
> +         brw_create_nir(brw, NULL, &vp->program.Base, MESA_SHADER_VERTEX,
> +                        brw->intelScreen->compiler->scalar_vs);
> +   }
> +
>     if (prog)
>        vs = (struct brw_shader *) prog->_LinkedShaders[MESA_SHADER_VERTEX];
>  


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