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GS: Scissor opt - handle reverse read sprites

This commit is contained in:
refractionpcsx2 2022-05-08 14:42:03 +01:00
parent 4baea67e75
commit 1b2d9f0c5d
1 changed files with 30 additions and 4 deletions
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34
pcsx2/GS/GSState.cpp
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@ -3214,20 +3214,46 @@ GSState::TextureMinMaxResult GSState::GetTextureMinMax(const GIFRegTEX0& TEX0, c
const GSVector2 uv_range(m_vt.m_max.t.x - m_vt.m_min.t.x, m_vt.m_max.t.y - m_vt.m_min.t.y);
const GSVector2 grad(uv_range / pos_range);
const GSVertex* vert_first = &m_vertex.buff[m_index.buff[0]];
const GSVertex* vert_second = &m_vertex.buff[m_index.buff[1]];
const bool swap_x = vert_first->U > vert_second->U;
const bool swap_y = vert_first->V > vert_second->V;
// we need to check that it's not going to repeat over the non-clipped part
if (wms != CLAMP_REGION_REPEAT && (wms != CLAMP_REPEAT || (static_cast<int>(st.x) & ~tw_mask) == (static_cast<int>(st.z) & ~tw_mask)))
{
if (int_rc.left < scissored_rc.left)
st.x += floor(static_cast<float>(scissored_rc.left - int_rc.left)* grad.x);
{
if(!swap_x)
st.x += floor(static_cast<float>(scissored_rc.left - int_rc.left) * grad.x);
else
st.z -= floor(static_cast<float>(scissored_rc.left - int_rc.left) * grad.x);
}
if (int_rc.right > scissored_rc.right)
st.z -= floor(static_cast<float>(int_rc.right - scissored_rc.right) * grad.x);
{
if (!swap_x)
st.z -= floor(static_cast<float>(int_rc.right - scissored_rc.right) * grad.x);
else
st.x += floor(static_cast<float>(int_rc.right - scissored_rc.right) * grad.x);
}
}
if (wmt != CLAMP_REGION_REPEAT && (wmt != CLAMP_REPEAT || (static_cast<int>(st.y) & ~th_mask) == (static_cast<int>(st.w) & ~th_mask)))
{
if (int_rc.top < scissored_rc.top)
st.y += floor(static_cast<float>(scissored_rc.top - int_rc.top) * grad.y);
{
if (!swap_y)
st.y += floor(static_cast<float>(scissored_rc.top - int_rc.top) * grad.y);
else
st.w -= floor(static_cast<float>(scissored_rc.top - int_rc.top) * grad.y);
}
if (int_rc.bottom > scissored_rc.bottom)
st.w -= floor(static_cast<float>(int_rc.bottom - scissored_rc.bottom) * grad.y);
{
if (!swap_y)
st.w -= floor(static_cast<float>(int_rc.bottom - scissored_rc.bottom) * grad.y);
else
st.y += floor(static_cast<float>(int_rc.bottom - scissored_rc.bottom) * grad.y);
}
}
}
}