From 23c52caafba52c77092b9721bd4601f8ea592625 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 8 Feb 2012 13:58:14 +0000 Subject: [PATCH] st/mesa: exit the update fragment samplers/textures loops early. If we have no more enabled samplers and we've reset all the previously used ones, no need to keep going around this loop. (just moved some stuff around to clean it up a bit). Signed-off-by: Dave Airlie Reviewed-by: Brian Paul --- src/mesa/state_tracker/st_atom_sampler.c | 16 ++++++++++------ src/mesa/state_tracker/st_atom_texture.c | 19 +++++++++++++------ 2 files changed, 23 insertions(+), 12 deletions(-) diff --git a/src/mesa/state_tracker/st_atom_sampler.c b/src/mesa/state_tracker/st_atom_sampler.c index 8845fed512f..ee69fc39012 100644 --- a/src/mesa/state_tracker/st_atom_sampler.c +++ b/src/mesa/state_tracker/st_atom_sampler.c @@ -233,29 +233,33 @@ update_fragment_samplers(struct st_context *st) const struct gl_context *ctx = st->ctx; struct gl_fragment_program *fprog = ctx->FragmentProgram._Current; GLuint su; + GLuint samplers_used = fprog->Base.SamplersUsed; + GLuint old_max = st->state.num_samplers; st->state.num_samplers = 0; /* loop over sampler units (aka tex image units) */ - for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++) { + for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++, samplers_used >>= 1) { struct pipe_sampler_state *sampler = st->state.samplers + su; - - if (fprog->Base.SamplersUsed & (1 << su)) { + if (samplers_used & 1) { GLuint texUnit; - texUnit = fprog->Base.SamplerUnits[su]; + texUnit = fprog->Base.SamplerUnits[su]; - convert_sampler(st, sampler, texUnit); + convert_sampler(st, sampler, texUnit); st->state.num_samplers = su + 1; /*printf("%s su=%u non-null\n", __FUNCTION__, su);*/ cso_single_sampler(st->cso_context, su, sampler); } - else { + else if (samplers_used != 0 || su < old_max) { /*printf("%s su=%u null\n", __FUNCTION__, su);*/ cso_single_sampler(st->cso_context, su, NULL); + } else { + /* if we've reset all the old views and we have no more new ones */ + break; } } diff --git a/src/mesa/state_tracker/st_atom_texture.c b/src/mesa/state_tracker/st_atom_texture.c index d241527cc6a..e8941da8d79 100644 --- a/src/mesa/state_tracker/st_atom_texture.c +++ b/src/mesa/state_tracker/st_atom_texture.c @@ -300,24 +300,31 @@ update_fragment_textures(struct st_context *st) const struct gl_context *ctx = st->ctx; struct gl_fragment_program *fprog = ctx->FragmentProgram._Current; GLuint su; + int old_max = st->state.num_textures; + GLbitfield samplers_used = fprog->Base.SamplersUsed; st->state.num_textures = 0; /* loop over sampler units (aka tex image units) */ - for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++) { + for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++, samplers_used >>= 1) { struct pipe_sampler_view *sampler_view = NULL; - if (fprog->Base.SamplersUsed & (1 << su)) { + + if (samplers_used & 1) { GLboolean retval; GLuint texUnit; - texUnit = fprog->Base.SamplerUnits[su]; + texUnit = fprog->Base.SamplerUnits[su]; - retval = update_single_texture(st, &sampler_view, texUnit); - if (retval == GL_FALSE) - continue; + retval = update_single_texture(st, &sampler_view, texUnit); + if (retval == GL_FALSE) + continue; st->state.num_textures = su + 1; + } else if (samplers_used == 0 && su >= old_max) { + /* if we've reset all the old views and we have no more new ones */ + break; } + pipe_sampler_view_reference(&st->state.sampler_views[su], sampler_view); } -- 2.30.2