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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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22
Source/Core/VideoBackends/OGL/Render.cpp
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@ -1122,12 +1122,10 @@ void Renderer::SetViewport()
(float)scissorYOff);
float Width = EFBToScaledXf(2.0f * xfmem.viewport.wd);
float Height = EFBToScaledYf(-2.0f * xfmem.viewport.ht);
float GLNear = MathUtil::Clamp<float>(
xfmem.viewport.farZ -
MathUtil::Clamp<float>(xfmem.viewport.zRange, -16777216.0f, 16777216.0f),
0.0f, 16777215.0f) /
16777216.0f;
float GLFar = MathUtil::Clamp<float>(xfmem.viewport.farZ, 0.0f, 16777215.0f) / 16777216.0f;
float range = MathUtil::Clamp<float>(xfmem.viewport.zRange, -16777216.0f, 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)
{
X += Width;
@ -1154,17 +1152,7 @@ void Renderer::SetViewport()
// vertex shader we only need to ensure depth values don't exceed the maximum
// value supported by the console GPU. If not, we simply clamp the near/far values
// themselves to the maximum value as done above.
if (g_ActiveConfig.backend_info.bSupportsDepthClamp)
{
if (xfmem.viewport.zRange < 0.0f)
glDepthRangef(0.0f, GX_MAX_DEPTH);
else
glDepthRangef(GX_MAX_DEPTH, 0.0f);
}
else
{
glDepthRangef(GLFar, GLNear);
}
glDepthRangef(max_depth, min_depth);
}
void Renderer::ClearScreen(const EFBRectangle& rc, bool colorEnable, bool alphaEnable, bool zEnable,