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Move UseVertexDepthRange() out of Renderer

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There wasn't really a good place for it, but this will do
This commit is contained in:
Scott Mansell
2023-01-31 18:18:46 +13:00
parent 2cfc02a116
commit 5803786beb
5 changed files with 27 additions and 24 deletions
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22
Source/Core/VideoCommon/VertexShaderManager.cpp
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@ -158,6 +158,26 @@ void VertexShaderManager::SetProjectionMatrix()
}
}
bool VertexShaderManager::UseVertexDepthRange()
{
// We can't compute the depth range in the vertex shader if we don't support depth clamp.
if (!g_ActiveConfig.backend_info.bSupportsDepthClamp)
return false;
// We need a full depth range if a ztexture is used.
if (bpmem.ztex2.op != ZTexOp::Disabled && !bpmem.zcontrol.early_ztest)
return true;
// If an inverted depth range is unsupported, we also need to check if the range is inverted.
if (!g_ActiveConfig.backend_info.bSupportsReversedDepthRange && xfmem.viewport.zRange < 0.0f)
return true;
// If an oversized depth range or a ztexture is used, we need to calculate the depth range
// in the vertex shader.
return fabs(xfmem.viewport.zRange) > 16777215.0f || fabs(xfmem.viewport.farZ) > 16777215.0f;
}
// Syncs the shader constant buffers with xfmem
// TODO: A cleaner way to control the matrices without making a mess in the parameters field
void VertexShaderManager::SetConstants(const std::vector<std::string>& textures)
@ -356,7 +376,7 @@ void VertexShaderManager::SetConstants(const std::vector<std::string>& textures)
constants.viewport[0] = (2.f * xfmem.viewport.wd);
constants.viewport[1] = (2.f * xfmem.viewport.ht);
if (g_renderer->UseVertexDepthRange())
if (UseVertexDepthRange())
{
// Oversized depth ranges are handled in the vertex shader. We need to reverse
// the far value to use the reversed-Z trick.