[Mesa-dev] [PATCH 02/11] i965/vs: Move lazy NIR creation to codegen_vs_prog
Iago Toral
itoral at igalia.com
Thu Oct 1 07:53:19 PDT 2015
Reviewed-by: Iago Toral Quiroga <itoral at 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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