From: Dave Airlie <airlied@redhat.com>
Date: Tue, 31 Oct 2017 23:54:27 +0000 (+1000)
Subject: mesa/st: implement max combined output resources limiting.
X-Git-Tag: upstream/18.1.0~4612
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=57892a23be9058b535072ce03dc155f42db02be4;p=platform%2Fupstream%2Fmesa.git

mesa/st: implement max combined output resources limiting.

if the driver sets the cap, then use the value it gives us.

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 3dec5a8..fa2d002 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -78,6 +78,7 @@ void st_init_limits(struct pipe_screen *screen,
    int supported_irs;
    unsigned sh;
    boolean can_ubo = TRUE;
+   int temp;
 
    c->MaxTextureLevels
       = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
@@ -469,6 +470,11 @@ void st_init_limits(struct pipe_screen *screen,
 
    c->UseSTD430AsDefaultPacking =
       screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
+
+   /* limit the max combined shader output resources to a driver limit */
+   temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
+   if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
+      c->MaxCombinedShaderOutputResources = temp;
 }