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

Optimization.
This commit is contained in:
lightningterror 2021-12-05 08:54:36 +01:00
parent b5fa9deb30
commit 38ab0630e6
1 changed files with 6 additions and 6 deletions
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12
pcsx2/GS/Renderers/OpenGL/GSRendererOGL.cpp
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@ -381,11 +381,10 @@ void GSRendererOGL::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;
@ -398,18 +397,19 @@ void GSRendererOGL::EmulateChannelShuffle(GSTexture** rt, const GSTextureCache::
default: break;
}
const int green_shift = 8 - blue_shift;
dev->SetupCBMisc(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;
GL_INS("Green/Blue channel (%d, %d)", blue_shift, green_shift);
dev->SetupCBMisc(GSVector4i(blue_mask, blue_shift, green_mask, green_shift));
m_ps_sel.channel = ChannelFetch_GXBY;
m_context->FRAME.FBMSK = 0x00FFFFFF;
}
else
{
GL_INS("Green channel (wrong mask) (fbmask %x)", m_context->FRAME.FBMSK >> 24);
GL_INS("Green channel (wrong mask) (fbmask %x)", blue_mask);
m_ps_sel.channel = ChannelFetch_GREEN;
}
}