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VideoCommon: Add vertex shader point and line expansion

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This commit is contained in:
TellowKrinkle
2022-07-23 00:47:04 -05:00
parent 804e42150e
commit 68f49df0f8
17 changed files with 584 additions and 73 deletions
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41
Source/Core/VideoCommon/ShaderCache.cpp
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@ -10,6 +10,7 @@
#include "Common/MsgHandler.h"
#include "Core/ConfigManager.h"
#include "VideoCommon/ConstantManager.h"
#include "VideoCommon/DriverDetails.h"
#include "VideoCommon/FramebufferManager.h"
#include "VideoCommon/FramebufferShaderGen.h"
@ -695,6 +696,35 @@ static GXPipelineUid ApplyDriverBugs(const GXPipelineUid& in)
ps->ztest = EmulatedZ::EarlyWithZComplocHack;
}
if (g_ActiveConfig.UseVSForLinePointExpand() &&
(out.rasterization_state.primitive == PrimitiveType::Points ||
out.rasterization_state.primitive == PrimitiveType::Lines))
{
// All primitives are expanded to triangles in the vertex shader
vertex_shader_uid_data* vs = out.vs_uid.GetUidData();
const PortableVertexDeclaration& decl = out.vertex_format->GetVertexDeclaration();
vs->position_has_3_elems = decl.position.components >= 3;
vs->texcoord_elem_count = 0;
for (int i = 0; i < 8; i++)
{
if (decl.texcoords[i].enable)
{
ASSERT(decl.texcoords[i].components <= 3);
vs->texcoord_elem_count |= decl.texcoords[i].components << (i * 2);
}
}
out.vertex_format = nullptr;
if (out.rasterization_state.primitive == PrimitiveType::Points)
vs->vs_expand = VSExpand::Point;
else
vs->vs_expand = VSExpand::Line;
PrimitiveType prim = g_ActiveConfig.backend_info.bSupportsPrimitiveRestart ?
PrimitiveType::TriangleStrip :
PrimitiveType::Triangles;
out.rasterization_state.primitive = prim;
out.gs_uid.GetUidData()->primitive_type = static_cast<u32>(prim);
}
return out;
}
@ -760,6 +790,17 @@ static GXUberPipelineUid ApplyDriverBugs(const GXUberPipelineUid& in)
out.blending_state.usedualsrc = false;
out.ps_uid.GetUidData()->no_dual_src = true;
}
if (g_ActiveConfig.UseVSForLinePointExpand())
{
// All primitives are expanded to triangles in the vertex shader
PrimitiveType prim = g_ActiveConfig.backend_info.bSupportsPrimitiveRestart ?
PrimitiveType::TriangleStrip :
PrimitiveType::Triangles;
out.rasterization_state.primitive = prim;
out.gs_uid.GetUidData()->primitive_type = static_cast<u32>(prim);
}
return out;
}