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vk/gl: Enable alpha test in shaders (#1743)

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kd-11 2016-06-05 20:31:23 +03:00 • committed by Ivan
parent 9710044134
commit c4102f3b18
6 changed files with 77 additions and 2 deletions
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30
rpcs3/Emu/RSX/GL/GLFragmentProgram.cpp
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@ -35,6 +35,8 @@ void GLFragmentDecompilerThread::insertHeader(std::stringstream & OS)
OS << " mat4 scaleOffsetMat;\n";
OS << " float fog_param0;\n";
OS << " float fog_param1;\n";
OS << " uint alpha_test;\n";
OS << " float alpha_ref;\n";
OS << "};\n";
}
@ -205,10 +207,14 @@ void GLFragmentDecompilerThread::insertMainEnd(std::stringstream & OS)
{ "ocol3", m_ctrl & CELL_GCM_SHADER_CONTROL_32_BITS_EXPORTS ? "r4" : "h8" },
};
std::string first_output_name;
for (int i = 0; i < sizeof(table) / sizeof(*table); ++i)
{
if (m_parr.HasParam(PF_PARAM_NONE, "vec4", table[i].second))
{
OS << " " << table[i].first << " = " << table[i].second << ";" << std::endl;
if (first_output_name.empty()) first_output_name = table[i].first;
}
}
if (m_ctrl & CELL_GCM_SHADER_CONTROL_DEPTH_EXPORT)
@ -223,6 +229,30 @@ void GLFragmentDecompilerThread::insertMainEnd(std::stringstream & OS)
}
}
if (!first_output_name.empty())
{
switch (m_prog.alpha_func)
{
case rsx::comparaison_function::equal:
OS << " if (bool(alpha_test) && " << first_output_name << ".a != alpha_ref) discard;\n";
break;
case rsx::comparaison_function::not_equal:
OS << " if (bool(alpha_test) && " << first_output_name << ".a == alpha_ref) discard;\n";
break;
case rsx::comparaison_function::less_or_equal:
OS << " if (bool(alpha_test) && " << first_output_name << ".a > alpha_ref) discard;\n";
break;
case rsx::comparaison_function::less:
OS << " if (bool(alpha_test) && " << first_output_name << ".a >= alpha_ref) discard;\n";
break;
case rsx::comparaison_function::greater:
OS << " if (bool(alpha_test) && " << first_output_name << ".a <= alpha_ref) discard;\n";
break;
case rsx::comparaison_function::greater_or_equal:
OS << " if (bool(alpha_test) && " << first_output_name << ".a < alpha_ref) discard;\n";
break;
}
}
OS << "}" << std::endl;
}