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rsx: Implement indexed dynamic attribute load

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kd-11 2021-08-23 11:48:32 +03:00 • committed by kd-11
commit 57b9acec62
2 changed files with 43 additions and 3 deletions
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45
rpcs3/Emu/RSX/Program/FragmentProgramDecompiler.cpp
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@ -550,14 +550,14 @@ template<typename T> std::string FragmentProgramDecompiler::GetSRC(T src)
// 4. [A0 + N] addressing can be applied to dynamically sample texture coordinates. // 4. [A0 + N] addressing can be applied to dynamically sample texture coordinates.
// - This is explained in NV_fragment_program2 specification page, Fragment Attributes section. // - This is explained in NV_fragment_program2 specification page, Fragment Attributes section.
// - There is no instruction that writes to the address register directly, it is supposed to be the loop counter! // - There is no instruction that writes to the address register directly, it is supposed to be the loop counter!
const u32 register_id = src2.use_index_reg ? (src2.addr_reg + 4) : dst.src_attr_reg_num; u32 register_id = src2.use_index_reg ? (src2.addr_reg + 4) : dst.src_attr_reg_num;
const std::string reg_var = (register_id < std::size(reg_table))? reg_table[register_id] : "unk"; const std::string reg_var = (register_id < std::size(reg_table))? reg_table[register_id] : "unk";
bool insert = true; bool insert = true;
if (src2.use_index_reg && m_loop_count) if (src2.use_index_reg && m_loop_count)
{ {
// TODO: Actually implement dynamic register indexing (kd-11) // Dynamically load the input
rsx_log.error("Dynamic register indexing is unimplemented. Report this to developers!"); register_id = 0xFF;
} }
switch (register_id) switch (register_id)
@ -621,6 +621,23 @@ template<typename T> std::string FragmentProgramDecompiler::GetSRC(T src)
} }
break; break;
} }
case 0xFF:
{
for (int i = 0; i < 10; ++i)
{
m_parr.AddParam(PF_PARAM_IN, getFloatTypeName(4), reg_table[i + 4]);
}
if (m_loop_count > 1)
{
rsx_log.error("Nested loop with indexed load was detected. Report this to developers!");
}
ret = fmt::format("_indexed_load(i%u + %u)", m_loop_count - 1, src2.addr_reg);
properties.has_dynamic_register_load = true;
insert = false;
break;
}
default: default:
{ {
// SSA (winding direction register) // SSA (winding direction register)
@ -911,6 +928,28 @@ std::string FragmentProgramDecompiler::BuildCode()
OS << "}\n\n"; OS << "}\n\n";
} }
if (properties.has_dynamic_register_load)
{
OS <<
"vec4 _indexed_load(int index)\n"
"{\n"
" switch (index)\n"
" {\n"
" case 0: return tc0;\n"
" case 1: return tc1;\n"
" case 2: return tc2;\n"
" case 3: return tc3;\n"
" case 4: return tc4;\n"
" case 5: return tc5;\n"
" case 6: return tc6;\n"
" case 7: return tc7;\n"
" case 8: return tc8;\n"
" case 9: return tc9;\n"
" }\n"
" return vec4(0., 0., 0., 1.);\n"
"}\n\n";
}
insertMainStart(OS); insertMainStart(OS);
OS << main << std::endl; OS << main << std::endl;
insertMainEnd(OS); insertMainEnd(OS);

1
rpcs3/Emu/RSX/Program/FragmentProgramDecompiler.h
View file

@ -287,6 +287,7 @@ public:
bool has_exp_tex_op = false; bool has_exp_tex_op = false;
bool has_pkg = false; bool has_pkg = false;
bool has_upg = false; bool has_upg = false;
bool has_dynamic_register_load = false;
} }
properties; properties;