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gsdx-d3d11: Don't enable fbmask on triangle primitives. 

It is quite slow due to fb copy on d3d, add potential notes for future
improvements so I don't forget what I wanted to do.
This commit is contained in:
lightningterror 2019-04-21 19:13:12 +02:00
parent e72aa23436
commit 641df126c4
1 changed files with 8 additions and 1 deletions
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9
plugins/GSdx/Renderers/DX11/GSRendererDX11.cpp
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@ -289,7 +289,14 @@ void GSRendererDX11::EmulateTextureShuffleAndFbmask()
m_om_bsel.wrgba = ~ff_fbmask; // Enable channel if at least 1 bit is 0
m_ps_sel.fbmask = m_sw_blending && (~ff_fbmask & ~zero_fbmask & 0xF);
// TO DO LIST:
// Doing triangle class is slow on dx unlike on gl,
// an idea would be to split fbmask in separate levels such as
// 1 Basic level > fbmask when no text shuffle and no triangle class
// 2 Medium level > enable fbmask when there is also text shuffle, triangle class still excluded
// 3 High/Full level > enable fbmask on triangle class as well.
// Selection for the level can be shared and maybe have d3d use it's own blend gui list.
m_ps_sel.fbmask = m_sw_blending && (m_vt.m_primclass != GS_TRIANGLE_CLASS) && (~ff_fbmask & ~zero_fbmask & 0xF);
if (m_ps_sel.fbmask)
{