From: Kenneth Graunke <kenneth@whitecape.org>
Date: Tue, 21 Aug 2018 03:55:17 +0000 (-0700)
Subject: iris: reenable R32G32B32 texture buffers
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d1cb4b330a501c9974412a0336a8caccae9fda59;p=mesa.git

iris: reenable R32G32B32 texture buffers

This dropped us from GL 4.2 to GL 3.3 by mistake.  Thanks to Dave for
catching this!
---

diff --git a/src/gallium/drivers/iris/iris_formats.c b/src/gallium/drivers/iris/iris_formats.c
index 5d886f2f86a..2b1950eaf7e 100644
--- a/src/gallium/drivers/iris/iris_formats.c
+++ b/src/gallium/drivers/iris/iris_formats.c
@@ -482,8 +482,11 @@ iris_is_format_supported(struct pipe_screen *pscreen,
        * are renderable from an API perspective since the state tracker will
        * fall back to RGBA or RGBX, which are renderable.  We want to render
        * internally for copies and blits, even if the application doesn't.
+       *
+       * We do need to advertise 32-bit RGB for texture buffers though.
        */
-      supported &= fmtl->bpb != 24 && fmtl->bpb != 48 && fmtl->bpb != 96;
+      supported &= fmtl->bpb != 24 && fmtl->bpb != 48 &&
+                   (fmtl->bpb != 96 || target == PIPE_BUFFER);
    }
 
    if (usage & PIPE_BIND_VERTEX_BUFFER)