diff options
| author | Brian Paul <brianp@vmware.com> | 2017-07-21 10:37:36 -0600 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2017-07-25 15:40:24 -0600 |
| commit | 91735e2d4a25df0685e5f4c8f0a064f9d58c6b8e (patch) | |
| tree | fe7bc1ef952fbc3067faa836287c27da54e7697d /src/gallium/drivers/svga/svga_pipe_blend.c | |
| parent | 71d3b69b239c2e2eb8b154229c5defc013b7c7b5 (diff) | |
svga: implement MSAA alpha_to_one feature
The device doesn't directly support this feature so we implement it with
additional shader code which sets the color output(s) w component to
1.0 (or max_int or max_uint).
Fixes 16 Piglit ext_framebuffer_multisample/*alpha-to-one* tests.
v2: only support unorm/float buffers, not int/uint, per Roland.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Diffstat (limited to 'src/gallium/drivers/svga/svga_pipe_blend.c')
| -rw-r--r-- | src/gallium/drivers/svga/svga_pipe_blend.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_pipe_blend.c b/src/gallium/drivers/svga/svga_pipe_blend.c index 408e175fea7..a29fbd3ac28 100644 --- a/src/gallium/drivers/svga/svga_pipe_blend.c +++ b/src/gallium/drivers/svga/svga_pipe_blend.c @@ -331,6 +331,7 @@ svga_create_blend_state(struct pipe_context *pipe, blend->independent_blend_enable = templ->independent_blend_enable; blend->alpha_to_coverage = templ->alpha_to_coverage; + blend->alpha_to_one = templ->alpha_to_one; if (svga_have_vgpu10(svga)) { define_blend_state_object(svga, blend); |