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GS-d3d11: Update ChannelShuffle buffer only when GXBY channel is used, and cleanup some variables. 

Optimization.
This commit is contained in:
lightningterror 2021-12-05 08:55:38 +01:00
parent 4e8bae1703
commit b5fa9deb30
1 changed files with 6 additions and 6 deletions
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12
pcsx2/GS/Renderers/DX11/GSRendererDX11.cpp
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@ -361,11 +361,10 @@ void GSRendererDX11::EmulateChannelShuffle(GSTexture** rt, const GSTextureCache:
{
// Typically used in Terminator 3
const int blue_mask = m_context->FRAME.FBMSK >> 24;
const int green_mask = ~blue_mask & 0xFF;
int blue_shift = -1;
// Note: potentially we could also check the value of the clut
switch (m_context->FRAME.FBMSK >> 24)
switch (blue_mask)
{
case 0xFF: ASSERT(0); break;
case 0xFE: blue_shift = 1; break;
@ -378,18 +377,19 @@ void GSRendererDX11::EmulateChannelShuffle(GSTexture** rt, const GSTextureCache:
default: break;
}
const int green_shift = 8 - blue_shift;
ps_cb.ChannelShuffle = GSVector4i(blue_mask, blue_shift, green_mask, green_shift);
if (blue_shift >= 0)
{
const int green_mask = ~blue_mask & 0xFF;
const int green_shift = 8 - blue_shift;
// fprintf(stderr, "%d: Green/Blue channel (%d, %d)\n", s_n, blue_shift, green_shift);
ps_cb.ChannelShuffle = GSVector4i(blue_mask, blue_shift, green_mask, green_shift);
m_ps_sel.channel = ChannelFetch_GXBY;
m_context->FRAME.FBMSK = 0x00FFFFFF;
}
else
{
// fprintf(stderr, "%d: Green channel (wrong mask) (fbmask %x)\n", s_n, m_context->FRAME.FBMSK >> 24);
// fprintf(stderr, "%d: Green channel (wrong mask) (fbmask %x)\n", s_n, blue_mask);
m_ps_sel.channel = ChannelFetch_GREEN;
}
}