[PATCH v2 1/2] wined3d: Support AMD alpha to coverage state.

[Paul Gofman]

On 2/12/20 13:43, Henri Verbeet wrote:
> On Wed, 12 Feb 2020 at 13:23, Paul Gofman <gofmanp at gmail.com> wrote:
>> After a bit of more testing I found out that state blocks favour ATOC
>> state. So it is no straightforward way to deal with it in d3d9 unless we
>> want to add blend object to wined3d state block. The other solution I
>> can think of is to handle ATOC states in
>> wined3d_stateblock_set_render_state(). That is, to introduce an internal
>> blend state object in wined3d_stateblock, update it from
>> wined3d_stateblock_set_render_state() if necessary, and apply
>> STATE_BLEND on state block application.
>>
> I think that's more or less what we want eventually. I.e., the idea is
> that most render states and the like will eventually go away from core
> wined3d, and will be replaced with d3d10/11 style state objects.

So maybe then I introduce wined3d_stateblock_set_blend_state() for now,
manage D3DRS_BLENDFACTOR in d3d9 (if I am not missing something this
state is d3d9 only) and remove WINED3D_RS_BLENDFACTOR handling from
wined3d? I suppose on top of this managing ATOC from d3d9 should be trivial.