From b37459388b22fb6a831d45bc08e51cdb7b9c610c Mon Sep 17 00:00:00 2001 From: Luca Barbieri Date: Mon, 6 Sep 2010 02:31:20 +0200 Subject: [PATCH] mesa/st: set compiler options based on Gallium shader caps This turns on if conversion and unlimited loop unrolling if control flow is not supported. NOTE: this will change the behavior of r300g and any other driver that doesn't advertise control flow --- src/mesa/state_tracker/st_extensions.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c index d637e6f43a0..3f91eb78d81 100644 --- a/src/mesa/state_tracker/st_extensions.c +++ b/src/mesa/state_tracker/st_extensions.c @@ -162,7 +162,16 @@ void st_init_limits(struct st_context *st) pc->MaxNativeAddressRegs = screen->get_shader_param(screen, i, PIPE_SHADER_CAP_MAX_ADDRS); pc->MaxNativeParameters = screen->get_shader_param(screen, i, PIPE_SHADER_CAP_MAX_CONSTS); + /* TODO: make these more fine-grained if anyone needs it */ + options->EmitNoIfs = !screen->get_shader_param(screen, i, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); + options->EmitNoFunctions = !screen->get_shader_param(screen, i, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); + options->EmitNoLoops = !screen->get_shader_param(screen, i, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); + options->EmitNoMainReturn = !screen->get_shader_param(screen, i, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); + options->EmitNoCont = !screen->get_shader_param(screen, i, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED); + + if(options->EmitNoLoops) + options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, i, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536); } /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs -- 2.30.2