Mesa (master): i965/fs: Assert that the number of color targets is one when dual-source blend is enabled.

[Francisco Jerez]

Module: Mesa
Branch: master
Commit: 6df215d97eab6e18a8c70c9966014f6ab2bbc20a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=6df215d97eab6e18a8c70c9966014f6ab2bbc20a

Author: Francisco Jerez <currojerez at riseup.net>
Date:   Thu Aug 25 18:35:06 2016 -0700

i965/fs: Assert that the number of color targets is one when dual-source blend is enabled.

Requested by Anuj during review of
4a87e4ade778e56d43333c65a58752b15a00ce69, adding as follow-up since it
led to assertion failures due to various GLSL bugs that should be
fixed now.

---

 src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index cfb5bb6..48b5f40 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -487,6 +487,7 @@ fs_visitor::emit_fb_writes()
    }
 
    prog_data->dual_src_blend = (this->dual_src_output.file != BAD_FILE);
+   assert(!prog_data->dual_src_blend || key->nr_color_regions == 1);
 
    if (inst == NULL) {
       /* Even if there's no color buffers enabled, we still need to send