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DX12: using better approximation for constant color/alpha blending (#1839)

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* DX12: using better approximation for constant color/alpha blending

* typo fix

* Comment updated.
This commit is contained in:
raven02 2016-06-28 20:19:04 +08:00 committed by GitHub
parent c7965405d3
commit d22017bfca
1 changed files with 26 additions and 18 deletions
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44
rpcs3/Emu/RSX/D3D12/D3D12Formats.cpp
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@ -38,16 +38,20 @@ D3D12_BLEND get_blend_factor(u16 factor)
case CELL_GCM_DST_COLOR: return D3D12_BLEND_DEST_COLOR;
case CELL_GCM_ONE_MINUS_DST_COLOR: return D3D12_BLEND_INV_DEST_COLOR;
case CELL_GCM_SRC_ALPHA_SATURATE: return D3D12_BLEND_SRC_ALPHA_SAT;
// The following constant color/alpha blending are hack/wrong since it is no matching one in D3D12
// therefore we workaround using approx one until we find better solution .
case CELL_GCM_CONSTANT_COLOR: return D3D12_BLEND_DEST_COLOR;
case CELL_GCM_ONE_MINUS_CONSTANT_COLOR: return D3D12_BLEND_INV_DEST_COLOR;
case CELL_GCM_CONSTANT_ALPHA: return D3D12_BLEND_DEST_ALPHA;
case CELL_GCM_ONE_MINUS_CONSTANT_ALPHA: return D3D12_BLEND_INV_DEST_ALPHA;
break;
case CELL_GCM_CONSTANT_COLOR:
case CELL_GCM_CONSTANT_ALPHA:
{
LOG_ERROR(RSX,"Constant blend factor not supported. Using ONE instead");
return D3D12_BLEND_ONE;
}
throw EXCEPTION("Invalid or unsupported blend factor (0x%x)", factor);
case CELL_GCM_ONE_MINUS_CONSTANT_COLOR:
case CELL_GCM_ONE_MINUS_CONSTANT_ALPHA:
{
LOG_ERROR(RSX,"Inv Constant blend factor not supported. Using ZERO instead");
return D3D12_BLEND_ZERO;
}
}
throw EXCEPTION("Invalid blend factor (0x%x)", factor);
}
D3D12_BLEND get_blend_factor_alpha(u16 factor)
@ -65,16 +69,20 @@ D3D12_BLEND get_blend_factor_alpha(u16 factor)
case CELL_GCM_DST_COLOR: return D3D12_BLEND_DEST_ALPHA;
case CELL_GCM_ONE_MINUS_DST_COLOR: return D3D12_BLEND_INV_DEST_ALPHA;
case CELL_GCM_SRC_ALPHA_SATURATE: return D3D12_BLEND_SRC_ALPHA_SAT;
// The following constant color/alpha blending are hack/wrong since it is no matching one in D3D12
// therefore we workaround using approx one until we find better solution .
case CELL_GCM_CONSTANT_COLOR: return D3D12_BLEND_DEST_ALPHA;
case CELL_GCM_ONE_MINUS_CONSTANT_COLOR: return D3D12_BLEND_INV_DEST_ALPHA;
case CELL_GCM_CONSTANT_ALPHA: return D3D12_BLEND_DEST_ALPHA;
case CELL_GCM_ONE_MINUS_CONSTANT_ALPHA: return D3D12_BLEND_INV_DEST_ALPHA;
break;
case CELL_GCM_CONSTANT_COLOR:
case CELL_GCM_CONSTANT_ALPHA:
{
LOG_ERROR(RSX,"Constant blend factor not supported. Using ONE instead");
return D3D12_BLEND_ONE;
}
throw EXCEPTION("Invalid or unsupported blend alpha factor (0x%x)", factor);
case CELL_GCM_ONE_MINUS_CONSTANT_COLOR:
case CELL_GCM_ONE_MINUS_CONSTANT_ALPHA:
{
LOG_ERROR(RSX,"Inv Constant blend factor not supported. Using ZERO instead");
return D3D12_BLEND_ZERO;
}
}
throw EXCEPTION("Invalid blend alpha factor (0x%x)", factor);
}
/**