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shader: size NGG primitive outputs from amplification

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This commit is contained in:
nmzik
2026-10-17 06:54:45 +02:00
parent ec08ea197b
commit ae25558321
2 changed files with 28 additions and 11 deletions
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src/graphics/shader/shader.cpp
+5 -5
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@@ -583,16 +583,16 @@ ShaderParams PrepareProgram(const HW::VertexShaderInfo& regs, const HW::Context&
mesh.input_primitive, sh.m_vgtGsOutPrimType, sh.m_vgtGsMaxVertOut,
group.primitive_group_size, group.vertex_group_size, mesh.max_vertices);
}
mesh.max_primitives = mesh.fast_launch ? mesh.max_vertices :
native_ngg ? mesh.InputPrimitiveCount(mesh.max_vertices) :
group.primitive_group_size * (sh.m_vgtGsMaxVertOut - 2u);
mesh.primitives_per_group = std::min({static_cast<uint32_t>(group.primitive_group_size),
mesh.InputPrimitiveCount(group.vertex_group_size),
native_ngg ? mesh.max_primitives :
native_ngg ? mesh.InputPrimitiveCount(mesh.max_vertices) :
mesh.max_vertices / sh.m_vgtGsMaxVertOut});
EXIT_IF(mesh.primitives_per_group == 0u);
mesh.vertices_per_group = mesh.InputVertexCount(mesh.primitives_per_group);
const auto threads = native_ngg && !mesh.fast_launch ? mesh.vertices_per_group : mesh.max_vertices;
mesh.max_primitives = mesh.primitives_per_group * (sh.m_geNggSubgrpCntl & 0x1ffu);
const auto threads = std::max(native_ngg && !mesh.fast_launch ? mesh.vertices_per_group
: mesh.max_vertices,
mesh.max_primitives);
mesh.threads_num[0] = ((threads + mesh.wave_size - 1u) / mesh.wave_size) * mesh.wave_size;
mesh.threads_num[1] = mesh.threads_num[2] = 1u;
return params;