From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 43096] New: r300g: r300_emit_draw_elements() refusing to render
	when max_index = 0xffffffff
Date: Sat, 19 Nov 2011 21:26:32 +0000
Message-ID: <bug-43096-502@http.bugs.freedesktop.org/>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org>
Received: from annarchy.freedesktop.org (annarchy.freedesktop.org
	[131.252.210.176])
	by gabe.freedesktop.org (Postfix) with ESMTP id C95369EC2A
	for <dri-devel@lists.freedesktop.org>;
	Sat, 19 Nov 2011 13:26:32 -0800 (PST)
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org
Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org
To: dri-devel@lists.freedesktop.org
List-Id: dri-devel@lists.freedesktop.org

https://bugs.freedesktop.org/show_bug.cgi?id=43096

             Bug #: 43096
           Summary: r300g: r300_emit_draw_elements() refusing to render
                    when max_index = 0xffffffff
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: tstellar@gmail.com


Created attachment 53692
  --> https://bugs.freedesktop.org/attachment.cgi?id=53692
Callstack from error message

I'm not exactly sure if this is a bug in r300g or st/mesa, but none of the
leader portraits are rendered in Civ4 and this error message is being printed:

r300: Got a huge number of vertices: 310, refusing to render (max_index: -1).

The reason this error message is being printed is because max_index is
0xffffffff, so this if statement at r300_render.c:448 evaluates to true:

if (count >= (1 << 24) || max_index >= (1 << 24)) {
        fprintf(stderr, "r300: Got a huge number of vertices: %i, "
                "refusing to render (max_index: %i).\n", count, max_index);
        return;
}

I'm not sure if the state tracker is wrong for passing 0xffffffff as the
max_index or if the driver needs to handle a max_index of 0xffffffff as a
special case, because it is the default value for pipe_draw_info->max_index.  I
have captured the call stack when this error message is printed and attached it
to this bug report.

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.