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VideoCommon: Don't process the depth range in the vertex shader if it's not oversized.

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This commit is contained in:
Jules Blok
2016-11-23 23:25:44 +01:00
parent 8e506cb974
commit ef82aebb97
6 changed files with 48 additions and 44 deletions
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11
Source/Core/VideoBackends/D3D12/Render.cpp
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@ -464,6 +464,10 @@ void Renderer::SetViewport()
float y = Renderer::EFBToScaledYf(xfmem.viewport.yOrig + xfmem.viewport.ht - scissor_y_offset);
float width = Renderer::EFBToScaledXf(2.0f * xfmem.viewport.wd);
float height = Renderer::EFBToScaledYf(-2.0f * xfmem.viewport.ht);
float range = MathUtil::Clamp<float>(xfmem.viewport.zRange, 0.0f, 16777216.0f);
float min_depth =
MathUtil::Clamp<float>(xfmem.viewport.farZ - range, 0.0f, 16777215.0f) / 16777216.0f;
float max_depth = MathUtil::Clamp<float>(xfmem.viewport.farZ, 0.0f, 16777215.0f) / 16777216.0f;
if (width < 0.0f)
{
x += width;
@ -474,6 +478,11 @@ void Renderer::SetViewport()
y += height;
height = -height;
}
if (xfmem.viewport.zRange < 0.0f)
{
min_depth = 1.0f - min_depth;
max_depth = 1.0f - max_depth;
}
// In D3D, the viewport rectangle must fit within the render target.
x = (x >= 0.f) ? x : 0.f;
@ -486,7 +495,7 @@ void Renderer::SetViewport()
// the maximum value supported by the console GPU. We also need to account for the
// fact that the entire depth buffer is inverted on D3D, so we set GX_MAX_DEPTH as
// an inverted near value.
D3D12_VIEWPORT vp = {x, y, width, height, 1.0f - GX_MAX_DEPTH, D3D12_MAX_DEPTH};
D3D12_VIEWPORT vp = {x, y, width, height, 1.0f - max_depth, 1.0f - min_depth};
D3D::current_command_list->RSSetViewports(1, &vp);
}