void FragmentProgramDecompiler::SetDst(std::string code, bool append_mask)
{
if (!src0.exec_if_eq && !src0.exec_if_gr && !src0.exec_if_lt) return;
switch (src1.scale)
{
case 0: break;
case 1: code = "(" + code + " * 2.0)"; break;
case 2: code = "(" + code + " * 4.0)"; break;
case 3: code = "(" + code + " * 8.0)"; break;
case 5: code = "(" + code + " / 2.0)"; break;
case 6: code = "(" + code + " / 4.0)"; break;
case 7: code = "(" + code + " / 8.0)"; break;
default:
LOG_ERROR(RSX, "Bad scale: %d", u32{ src1.scale });
Emu.Pause();
break;
}
if (dst.saturate)
{
code = saturate(code);
}
code += (append_mask ? "$m" : "");
if (dst.no_dest)
{
if (dst.set_cond)
{
AddCode("$ifcond " + m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), "cc" + std::to_string(src0.cond_mod_reg_index)) + "$m = " + code + ";");
}
else
{
AddCode("$ifcond " + code + ";");
}
return;
}
std::string dest = AddReg(dst.dest_reg, dst.fp16) + "$m";
AddCodeCond(Format(dest), code);
//AddCode("$ifcond " + dest + code + (append_mask ? "$m;" : ";"));
if (dst.set_cond)
{
AddCode(m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), "cc" + std::to_string(src0.cond_mod_reg_index)) + "$m = " + dest + ";");
}
}
void VertexProgramDecompiler::SetDST(bool is_sca, std::string value)
{
if (d0.cond == 0) return;
enum
{
lt = 0x1,
eq = 0x2,
gt = 0x4,
};
std::string mask = GetMask(is_sca);
if (is_sca)
{
value = getFloatTypeName(4) + "(" + value + ")";
}
value += mask;
if (d0.staturate)
{
value = "clamp(" + value + ", 0.0, 1.0)";
}
std::string dest;
if (d0.cond_update_enable_0 && d0.cond_update_enable_1)
{
dest = m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), "cc" + std::to_string(d0.cond_reg_sel_1), getFloatTypeName(4) + "(0., 0., 0., 0.)") + mask;
}
else if (d3.dst != 0x1f || (is_sca ? d3.sca_dst_tmp != 0x3f : d0.dst_tmp != 0x3f))
{
dest = GetDST(is_sca) + mask;
}
//std::string code;
//if (d0.cond_test_enable)
// code += "$ifcond ";
//code += dest + value;
//AddCode(code + ";");
AddCodeCond(Format(dest), value);
}
std::string FragmentProgramDecompiler::AddConst()
{
std::string name = std::string("fc") + std::to_string(m_size + 4 * 4);
if (m_parr.HasParam(PF_PARAM_UNIFORM, getFloatTypeName(4), name))
{
return name;
}
auto data = vm::ps3::ptr<u32>::make(m_addr + m_size + 4 * sizeof32(u32));
m_offset = 2 * 4 * sizeof(u32);
u32 x = GetData(data[0]);
u32 y = GetData(data[1]);
u32 z = GetData(data[2]);
u32 w = GetData(data[3]);
return m_parr.AddParam(PF_PARAM_UNIFORM, getFloatTypeName(4), name,
std::string(getFloatTypeName(4) + "(") + std::to_string((float&)x) + ", " + std::to_string((float&)y)
+ ", " + std::to_string((float&)z) + ", " + std::to_string((float&)w) + ")");
}
std::string VertexProgramDecompiler::GetDST(bool isSca)
{
std::string ret;
switch (isSca ? 0x1f : d3.dst)
{
case 0x1f:
ret += m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), std::string("tmp") + std::to_string(isSca ? d3.sca_dst_tmp : d0.dst_tmp));
break;
default:
if (d3.dst > 15)
LOG_ERROR(RSX, fmt::format("dst index out of range: %u", d3.dst));
ret += m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), std::string("dst_reg") + std::to_string(d3.dst), d3.dst == 0 ? getFloatTypeName(4) + "(0.0f, 0.0f, 0.0f, 1.0f)" : getFloatTypeName(4) + "(0.0, 0.0, 0.0, 0.0)");
break;
}
return ret;
}
std::string FragmentProgramDecompiler::GetCond()
{
if (src0.exec_if_gr && src0.exec_if_lt && src0.exec_if_eq)
{
return "true";
}
else if (!src0.exec_if_gr && !src0.exec_if_lt && !src0.exec_if_eq)
{
return "false";
}
static const char f[4] = { 'x', 'y', 'z', 'w' };
std::string swizzle, cond;
swizzle += f[src0.cond_swizzle_x];
swizzle += f[src0.cond_swizzle_y];
swizzle += f[src0.cond_swizzle_z];
swizzle += f[src0.cond_swizzle_w];
swizzle = swizzle == "xyzw" ? "" : "." + swizzle;
if (src0.exec_if_gr && src0.exec_if_eq)
cond = compareFunction(COMPARE::FUNCTION_SGE, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else if (src0.exec_if_lt && src0.exec_if_eq)
cond = compareFunction(COMPARE::FUNCTION_SLE, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else if (src0.exec_if_gr && src0.exec_if_lt)
cond = compareFunction(COMPARE::FUNCTION_SNE, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else if (src0.exec_if_gr)
cond = compareFunction(COMPARE::FUNCTION_SGT, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else if (src0.exec_if_lt)
cond = compareFunction(COMPARE::FUNCTION_SLT, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else //if(src0.exec_if_eq)
cond = compareFunction(COMPARE::FUNCTION_SEQ, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
return "any(" + cond + ")";
}
bool FragmentProgramDecompiler::handle_sct(u32 opcode)
{
switch (opcode)
{
case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); return true;
case RSX_FP_OPCODE_DIV: SetDst("($0 / $1.xxxx)"); return true;
// Note: DIVSQ is not IEEE compliant. divsq(0, 0) is 0 (Super Puzzle Fighter II Turbo HD Remix).
// sqrt(x, 0) might be equal to some big value (in absolute) whose sign is sign(x) but it has to be proven.
case RSX_FP_OPCODE_DIVSQ: SetDst("divsq_legacy($0, $1)"); return true;
case RSX_FP_OPCODE_DP2: SetDst(getFunction(FUNCTION::FUNCTION_DP2)); return true;
case RSX_FP_OPCODE_DP3: SetDst(getFunction(FUNCTION::FUNCTION_DP3)); return true;
case RSX_FP_OPCODE_DP4: SetDst(getFunction(FUNCTION::FUNCTION_DP4)); return true;
case RSX_FP_OPCODE_DP2A: SetDst(getFunction(FUNCTION::FUNCTION_DP2A)); return true;
case RSX_FP_OPCODE_MAD: SetDst("($0 * $1 + $2)"); return true;
case RSX_FP_OPCODE_MAX: SetDst("max($0, $1)"); return true;
case RSX_FP_OPCODE_MIN: SetDst("min($0, $1)"); return true;
case RSX_FP_OPCODE_MOV: SetDst("$0"); return true;
case RSX_FP_OPCODE_MUL: SetDst("($0 * $1)"); return true;
// Note: It's higly likely that RCP is not IEEE compliant but a game that uses rcp(0) has to be found
case RSX_FP_OPCODE_RCP: SetDst("rcp_legacy($0)"); return true;
// Note: RSQ is not IEEE compliant. rsq(0) is some big number (Silent Hill 3 HD)
// It is not know what happens if 0 is negative.
case RSX_FP_OPCODE_RSQ: SetDst("rsq_legacy($0)"); return true;
case RSX_FP_OPCODE_SEQ: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SEQ, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SFL: SetDst(getFunction(FUNCTION::FUNCTION_SFL)); return true;
case RSX_FP_OPCODE_SGE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SGT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGT, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SLE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SLT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLT, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SNE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SNE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_STR: SetDst(getFunction(FUNCTION::FUNCTION_STR)); return true;
}
return false;
}
bool FragmentProgramDecompiler::handle_sct(u32 opcode)
{
switch (opcode)
{
case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); return true;
case RSX_FP_OPCODE_DIV: SetDst("($0 / $1)"); return true;
case RSX_FP_OPCODE_DIVSQ: SetDst("($0 / sqrt($1).xxxx)"); return true;
case RSX_FP_OPCODE_DP2: SetDst(getFunction(FUNCTION::FUNCTION_DP2)); return true;
case RSX_FP_OPCODE_DP3: SetDst(getFunction(FUNCTION::FUNCTION_DP3)); return true;
case RSX_FP_OPCODE_DP4: SetDst(getFunction(FUNCTION::FUNCTION_DP4)); return true;
case RSX_FP_OPCODE_DP2A: SetDst(getFunction(FUNCTION::FUNCTION_DP2A)); return true;
case RSX_FP_OPCODE_MAD: SetDst("($0 * $1 + $2)"); return true;
case RSX_FP_OPCODE_MAX: SetDst("max($0, $1)"); return true;
case RSX_FP_OPCODE_MIN: SetDst("min($0, $1)"); return true;
case RSX_FP_OPCODE_MOV: SetDst("$0"); return true;
case RSX_FP_OPCODE_MUL: SetDst("($0 * $1)"); return true;
case RSX_FP_OPCODE_RCP: SetDst("1.0 / $0"); return true;
case RSX_FP_OPCODE_RSQ: SetDst("1.f / sqrt($0)"); return true;
case RSX_FP_OPCODE_SEQ: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SEQ, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SFL: SetDst(getFunction(FUNCTION::FUNCTION_SFL)); return true;
case RSX_FP_OPCODE_SGE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SGT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGT, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SLE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SLT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLT, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SNE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SNE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_STR: SetDst(getFunction(FUNCTION::FUNCTION_STR)); return true;
}
return false;
}
std::string VertexProgramDecompiler::GetDST(bool isSca)
{
std::string ret;
std::string mask = GetMask(isSca);
switch ((isSca && d3.sca_dst_tmp != 0x3f) ? 0x1f : d3.dst)
{
case 0x1f:
ret += m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), std::string("tmp") + std::to_string(isSca ? d3.sca_dst_tmp : d0.dst_tmp)) + mask;
break;
default:
if (d3.dst > 15)
LOG_ERROR(RSX, "dst index out of range: %u", d3.dst);
ret += m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), std::string("dst_reg") + std::to_string(d3.dst), d3.dst == 0 ? getFloatTypeName(4) + "(0.0f, 0.0f, 0.0f, 1.0f)" : getFloatTypeName(4) + "(0.0, 0.0, 0.0, 0.0)") + mask;
// Handle double destination register as 'dst_reg = tmp'
if (d0.dst_tmp != 0x3f)
ret += " = " + m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), std::string("tmp") + std::to_string(d0.dst_tmp)) + mask;
break;
}
return ret;
}
bool FragmentProgramDecompiler::handle_scb(u32 opcode)
{
switch (opcode)
{
case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); return true;
case RSX_FP_OPCODE_COS: SetDst("cos($0.xxxx)"); return true;
case RSX_FP_OPCODE_DIV: SetDst("($0 / $1.xxxx)"); return true;
// Note: DIVSQ is not IEEE compliant. sqrt(0, 0) is 0 (Super Puzzle Fighter II Turbo HD Remix).
// sqrt(x, 0) might be equal to some big value (in absolute) whose sign is sign(x) but it has to be proven.
case RSX_FP_OPCODE_DIVSQ: SetDst("divsq_legacy($0, sqrt($1).xxxx)"); return true;
case RSX_FP_OPCODE_DP2: SetDst(getFunction(FUNCTION::FUNCTION_DP2)); return true;
case RSX_FP_OPCODE_DP3: SetDst(getFunction(FUNCTION::FUNCTION_DP3)); return true;
case RSX_FP_OPCODE_DP4: SetDst(getFunction(FUNCTION::FUNCTION_DP4)); return true;
case RSX_FP_OPCODE_DP2A: SetDst(getFunction(FUNCTION::FUNCTION_DP2A)); return true;
case RSX_FP_OPCODE_DST: SetDst("vec4(distance($0, $1))"); return true;
case RSX_FP_OPCODE_REFL: LOG_ERROR(RSX, "Unimplemented SCB instruction: REFL"); return true; // TODO: Is this in the right category?
case RSX_FP_OPCODE_EX2: SetDst("exp2($0.xxxx)"); return true;
case RSX_FP_OPCODE_FLR: SetDst("floor($0)"); return true;
case RSX_FP_OPCODE_FRC: SetDst(getFunction(FUNCTION::FUNCTION_FRACT)); return true;
case RSX_FP_OPCODE_LIT: SetDst(getFloatTypeName(4) + "(1.0, $0.x, ($0.x > 0.0 ? exp($0.w * log2($0.y)) : 0.0), 1.0)"); return true;
case RSX_FP_OPCODE_LIF: SetDst(getFloatTypeName(4) + "(1.0, $0.y, ($0.y > 0 ? pow(2.0, $0.w) : 0.0), 1.0)"); return true;
case RSX_FP_OPCODE_LRP: LOG_ERROR(RSX, "Unimplemented SCB instruction: LRP"); return true; // TODO: Is this in the right category?
case RSX_FP_OPCODE_LG2: SetDst("log2($0.xxxx)"); return true;
case RSX_FP_OPCODE_MAD: SetDst("($0 * $1 + $2)"); return true;
case RSX_FP_OPCODE_MAX: SetDst("max($0, $1)"); return true;
case RSX_FP_OPCODE_MIN: SetDst("min($0, $1)"); return true;
case RSX_FP_OPCODE_MOV: SetDst("$0"); return true;
case RSX_FP_OPCODE_MUL: SetDst("($0 * $1)"); return true;
case RSX_FP_OPCODE_PK2: SetDst("packSnorm2x16($0)"); return true; // TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478))
case RSX_FP_OPCODE_PK4: SetDst("packSnorm4x8($0)"); return true; // TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478))
case RSX_FP_OPCODE_PK16: LOG_ERROR(RSX, "Unimplemented SCB instruction: PK16"); return true;
case RSX_FP_OPCODE_PKB: LOG_ERROR(RSX, "Unimplemented SCB instruction: PKB"); return true;
case RSX_FP_OPCODE_PKG: LOG_ERROR(RSX, "Unimplemented SCB instruction: PKG"); return true;
case RSX_FP_OPCODE_SEQ: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SEQ, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SFL: SetDst(getFunction(FUNCTION::FUNCTION_SFL)); return true;
case RSX_FP_OPCODE_SGE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SGT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGT, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SIN: SetDst("sin($0.xxxx)"); return true;
case RSX_FP_OPCODE_SLE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SLT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLT, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SNE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SNE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_STR: SetDst(getFunction(FUNCTION::FUNCTION_STR)); return true;
}
return false;
}
void FragmentProgramDecompiler::AddCodeCond(const std::string& dst, const std::string& src)
{
if (src0.exec_if_gr && src0.exec_if_lt && src0.exec_if_eq)
{
AddCode(dst + " = " + src + ";");
return;
}
if (!src0.exec_if_gr && !src0.exec_if_lt && !src0.exec_if_eq)
{
AddCode("//" + dst + " = " + src + ";");
return;
}
static const char f[4] = { 'x', 'y', 'z', 'w' };
std::string swizzle, cond;
swizzle += f[src0.cond_swizzle_x];
swizzle += f[src0.cond_swizzle_y];
swizzle += f[src0.cond_swizzle_z];
swizzle += f[src0.cond_swizzle_w];
swizzle = swizzle == "xyzw" ? "" : "." + swizzle;
if (src0.exec_if_gr && src0.exec_if_eq)
cond = compareFunction(COMPARE::FUNCTION_SGE, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else if (src0.exec_if_lt && src0.exec_if_eq)
cond = compareFunction(COMPARE::FUNCTION_SLE, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else if (src0.exec_if_gr && src0.exec_if_lt)
cond = compareFunction(COMPARE::FUNCTION_SNE, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else if (src0.exec_if_gr)
cond = compareFunction(COMPARE::FUNCTION_SGT, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else if (src0.exec_if_lt)
cond = compareFunction(COMPARE::FUNCTION_SLT, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
else //if(src0.exec_if_eq)
cond = compareFunction(COMPARE::FUNCTION_SEQ, AddCond() + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)");
ShaderVariable dst_var(dst);
dst_var.symplify();
//const char *c_mask = f;
if (dst_var.swizzles[0].length() == 1)
{
AddCode("if (" + cond + ".x) " + dst + " = " + src + ";");
}
else
{
for (int i = 0; i < dst_var.swizzles[0].length(); ++i)
{
AddCode("if (" + cond + "." + f[i] + ") " + dst + "." + f[i] + " = " + src + "." + f[i] + ";");
}
}
}
bool FragmentProgramDecompiler::handle_scb(u32 opcode)
{
switch (opcode)
{
case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); return true;
case RSX_FP_OPCODE_COS: SetDst("cos($0.xxxx)"); return true;
case RSX_FP_OPCODE_DIVSQ: SetDst("($0 / sqrt($1).xxxx)"); return true;
case RSX_FP_OPCODE_DP2: SetDst(getFunction(FUNCTION::FUNCTION_DP2)); return true;
case RSX_FP_OPCODE_DP3: SetDst(getFunction(FUNCTION::FUNCTION_DP3)); return true;
case RSX_FP_OPCODE_DP4: SetDst(getFunction(FUNCTION::FUNCTION_DP4)); return true;
case RSX_FP_OPCODE_DP2A: SetDst(getFunction(FUNCTION::FUNCTION_DP2A)); return true;
case RSX_FP_OPCODE_DST: SetDst("vec4(distance($0, $1))"); return true;
case RSX_FP_OPCODE_REFL: LOG_ERROR(RSX, "Unimplemented SCB instruction: REFL"); return true; // TODO: Is this in the right category?
case RSX_FP_OPCODE_EX2: SetDst("exp2($0.xxxx)"); return true;
case RSX_FP_OPCODE_FLR: SetDst("floor($0)"); return true;
case RSX_FP_OPCODE_FRC: SetDst(getFunction(FUNCTION::FUNCTION_FRACT)); return true;
case RSX_FP_OPCODE_LIT: SetDst(getFloatTypeName(4) + "(1.0, $0.x, ($0.x > 0.0 ? exp($0.w * log2($0.y)) : 0.0), 1.0)"); return true;
case RSX_FP_OPCODE_LIF: SetDst(getFloatTypeName(4) + "(1.0, $0.y, ($0.y > 0 ? pow(2.0, $0.w) : 0.0), 1.0)"); return true;
case RSX_FP_OPCODE_LRP: LOG_ERROR(RSX, "Unimplemented SCB instruction: LRP"); return true; // TODO: Is this in the right category?
case RSX_FP_OPCODE_LG2: SetDst("log2($0.xxxx)"); return true;
case RSX_FP_OPCODE_MAD: SetDst("($0 * $1 + $2)"); return true;
case RSX_FP_OPCODE_MAX: SetDst("max($0, $1)"); return true;
case RSX_FP_OPCODE_MIN: SetDst("min($0, $1)"); return true;
case RSX_FP_OPCODE_MOV: SetDst("$0"); return true;
case RSX_FP_OPCODE_MUL: SetDst("($0 * $1)"); return true;
case RSX_FP_OPCODE_PK2: SetDst("packSnorm2x16($0)"); return true; // TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478))
case RSX_FP_OPCODE_PK4: SetDst("packSnorm4x8($0)"); return true; // TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478))
case RSX_FP_OPCODE_PK16: LOG_ERROR(RSX, "Unimplemented SCB instruction: PK16"); return true;
case RSX_FP_OPCODE_PKB: LOG_ERROR(RSX, "Unimplemented SCB instruction: PKB"); return true;
case RSX_FP_OPCODE_PKG: LOG_ERROR(RSX, "Unimplemented SCB instruction: PKG"); return true;
case RSX_FP_OPCODE_SEQ: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SEQ, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SFL: SetDst(getFunction(FUNCTION::FUNCTION_SFL)); return true;
case RSX_FP_OPCODE_SGE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SGT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGT, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SIN: SetDst("sin($0.xxxx)"); return true;
case RSX_FP_OPCODE_SLE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SLT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLT, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_SNE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SNE, "$0", "$1") + ")"); return true;
case RSX_FP_OPCODE_STR: SetDst(getFunction(FUNCTION::FUNCTION_STR)); return true;
}
return false;
}
std::string VertexProgramDecompiler::GetSRC(const u32 n)
{
static const std::string reg_table[] =
{
"in_pos", "in_weight", "in_normal",
"in_diff_color", "in_spec_color",
"in_fog",
"in_point_size", "in_7",
"in_tc0", "in_tc1", "in_tc2", "in_tc3",
"in_tc4", "in_tc5", "in_tc6", "in_tc7"
};
std::string ret;
switch (src[n].reg_type)
{
case 1: //temp
ret += m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), "tmp" + std::to_string(src[n].tmp_src));
break;
case 2: //input
if (d1.input_src < (sizeof(reg_table) / sizeof(reg_table[0])))
{
ret += m_parr.AddParam(PF_PARAM_IN, getFloatTypeName(4), reg_table[d1.input_src], d1.input_src);
}
else
{
LOG_ERROR(RSX, "Bad input src num: %d", u32{ d1.input_src });
ret += m_parr.AddParam(PF_PARAM_IN, getFloatTypeName(4), "in_unk", d1.input_src);
}
break;
case 3: //const
m_parr.AddParam(PF_PARAM_UNIFORM, getFloatTypeName(4), std::string("vc[468]"));
ret += std::string("vc[") + std::to_string(d1.const_src) + (d3.index_const ? " + " + AddAddrReg() : "") + "]";
break;
default:
LOG_ERROR(RSX, fmt::format("Bad src%u reg type: %d", n, u32{ src[n].reg_type }));
Emu.Pause();
break;
}
static const std::string f = "xyzw";
std::string swizzle;
swizzle += f[src[n].swz_x];
swizzle += f[src[n].swz_y];
swizzle += f[src[n].swz_z];
swizzle += f[src[n].swz_w];
if (swizzle != f) ret += '.' + swizzle;
bool abs = false;
switch (n)
{
case 0: abs = d0.src0_abs; break;
case 1: abs = d0.src1_abs; break;
case 2: abs = d0.src2_abs; break;
}
if (abs) ret = "abs(" + ret + ")";
if (src[n].neg) ret = "-" + ret;
return ret;
}
std::string VertexProgramDecompiler::Decompile()
{
for (unsigned i = 0; i < PF_PARAM_COUNT; i++)
m_parr.params[i].clear();
m_instr_count = 0;
for (int i = 0; i < m_max_instr_count; ++i)
{
m_instructions[i].reset();
}
bool is_has_BRA = false;
for (u32 i = 1; m_instr_count < m_max_instr_count; m_instr_count++)
{
m_cur_instr = &m_instructions[m_instr_count];
if (is_has_BRA)
{
d3.HEX = m_data[i];
i += 4;
}
else
{
d1.HEX = m_data[i++];
switch (d1.sca_opcode)
{
case 0x08: //BRA
LOG_ERROR(RSX, "BRA found. Please report to RPCS3 team.");
is_has_BRA = true;
m_jump_lvls.clear();
d3.HEX = m_data[++i];
i += 4;
break;
case 0x09: //BRI
d2.HEX = m_data[i++];
d3.HEX = m_data[i];
i += 2;
m_jump_lvls.emplace(GetAddr());
break;
default:
d3.HEX = m_data[++i];
i += 2;
break;
}
}
if (d3.end)
{
m_instr_count++;
if (i < m_data.size())
{
LOG_ERROR(RSX, "Program end before buffer end.");
}
break;
}
}
uint jump_position = 0;
if (is_has_BRA || !m_jump_lvls.empty())
{
m_cur_instr = &m_instructions[0];
AddCode("int jump_position = 0;");
AddCode("while (true)");
AddCode("{");
m_cur_instr->open_scopes++;
AddCode(fmt::format("if (jump_position <= %u)", jump_position++));
AddCode("{");
m_cur_instr->open_scopes++;
}
for (u32 i = 0; i < m_instr_count; ++i)
{
m_cur_instr = &m_instructions[i];
d0.HEX = m_data[i * 4 + 0];
d1.HEX = m_data[i * 4 + 1];
d2.HEX = m_data[i * 4 + 2];
d3.HEX = m_data[i * 4 + 3];
src[0].src0l = d2.src0l;
src[0].src0h = d1.src0h;
src[1].src1 = d2.src1;
src[2].src2l = d3.src2l;
src[2].src2h = d2.src2h;
if (i && (is_has_BRA || std::find(m_jump_lvls.begin(), m_jump_lvls.end(), i) != m_jump_lvls.end()))
{
m_cur_instr->close_scopes++;
AddCode("}");
AddCode("");
AddCode(fmt::format("if (jump_position <= %u)", jump_position++));
AddCode("{");
m_cur_instr->open_scopes++;
}
if (!d1.sca_opcode && !d1.vec_opcode)
{
AddCode("//nop");
}
switch (d1.sca_opcode)
{
case RSX_SCA_OPCODE_NOP: break;
case RSX_SCA_OPCODE_MOV: SetDSTSca("$s"); break;
case RSX_SCA_OPCODE_RCP: SetDSTSca("(1.0 / $s)"); break;
case RSX_SCA_OPCODE_RCC: SetDSTSca("clamp(1.0 / $s, 5.42101e-20, 1.884467e19)"); break;
case RSX_SCA_OPCODE_RSQ: SetDSTSca("(1.f / sqrt($s))"); break;
case RSX_SCA_OPCODE_EXP: SetDSTSca("exp($s)"); break;
case RSX_SCA_OPCODE_LOG: SetDSTSca("log($s)"); break;
case RSX_SCA_OPCODE_LIT: SetDSTSca(getFloatTypeName(4) + "(1.0, $s.x, ($s.x > 0.0 ? exp($s.w * log2($s.y)) : 0.0), 1.0)"); break;
case RSX_SCA_OPCODE_BRA:
{
AddCode("$if ($cond)");
AddCode("{");
m_cur_instr->open_scopes++;
AddCode("jump_position = $a$am;");
AddCode("continue;");
m_cur_instr->close_scopes++;
AddCode("}");
}
break;
case RSX_SCA_OPCODE_BRI: // works differently (BRI o[1].x(TR) L0;)
{
u32 jump_position = 1;
if (is_has_BRA)
{
jump_position = GetAddr();
}
else
{
u32 addr = GetAddr();
for (auto pos : m_jump_lvls)
{
if (addr == pos)
break;
++jump_position;
}
}
AddCode("$ifcond ");
AddCode("{");
m_cur_instr->open_scopes++;
AddCode(fmt::format("jump_position = %u;", jump_position));
AddCode("continue;");
m_cur_instr->close_scopes++;
AddCode("}");
}
break;
case RSX_SCA_OPCODE_CAL:
// works same as BRI
AddCode("$ifcond $f(); //CAL");
break;
case RSX_SCA_OPCODE_CLI:
// works same as BRI
AddCode("$ifcond $f(); //CLI");
break;
case RSX_SCA_OPCODE_RET:
// works like BRI but shorter (RET o[1].x(TR);)
AddCode("$ifcond return;");
break;
case RSX_SCA_OPCODE_LG2: SetDSTSca("log2($s)"); break;
case RSX_SCA_OPCODE_EX2: SetDSTSca("exp2($s)"); break;
case RSX_SCA_OPCODE_SIN: SetDSTSca("sin($s)"); break;
case RSX_SCA_OPCODE_COS: SetDSTSca("cos($s)"); break;
case RSX_SCA_OPCODE_BRB:
// works differently (BRB o[1].x !b0, L0;)
LOG_ERROR(RSX, "Unimplemented sca_opcode BRB");
break;
case RSX_SCA_OPCODE_CLB: break;
// works same as BRB
LOG_ERROR(RSX, "Unimplemented sca_opcode CLB");
break;
case RSX_SCA_OPCODE_PSH: break;
// works differently (PSH o[1].x A0;)
LOG_ERROR(RSX, "Unimplemented sca_opcode PSH");
break;
case RSX_SCA_OPCODE_POP: break;
// works differently (POP o[1].x;)
LOG_ERROR(RSX, "Unimplemented sca_opcode POP");
break;
default:
AddCode(fmt::format("//Unknown vp sca_opcode 0x%x", u32{ d1.sca_opcode }));
LOG_ERROR(RSX, "Unknown vp sca_opcode 0x%x", u32{ d1.sca_opcode });
Emu.Pause();
break;
}
switch (d1.vec_opcode)
{
case RSX_VEC_OPCODE_NOP: break;
case RSX_VEC_OPCODE_MOV: SetDSTVec("$0"); break;
case RSX_VEC_OPCODE_MUL: SetDSTVec("($0 * $1)"); break;
case RSX_VEC_OPCODE_ADD: SetDSTVec("($0 + $2)"); break;
case RSX_VEC_OPCODE_MAD: SetDSTVec("($0 * $1 + $2)"); break;
case RSX_VEC_OPCODE_DP3: SetDSTVec(getFunction(FUNCTION::FUNCTION_DP3)); break;
case RSX_VEC_OPCODE_DPH: SetDSTVec(getFunction(FUNCTION::FUNCTION_DPH)); break;
case RSX_VEC_OPCODE_DP4: SetDSTVec(getFunction(FUNCTION::FUNCTION_DP4)); break;
case RSX_VEC_OPCODE_DST: SetDSTVec("vec4(distance($0, $1))"); break;
case RSX_VEC_OPCODE_MIN: SetDSTVec("min($0, $1)"); break;
case RSX_VEC_OPCODE_MAX: SetDSTVec("max($0, $1)"); break;
case RSX_VEC_OPCODE_SLT: SetDSTVec(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLT, "$0", "$1") + ")"); break;
case RSX_VEC_OPCODE_SGE: SetDSTVec(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGE, "$0", "$1") + ")"); break;
// Note: It looks like ARL opcode ignore input/output swizzle mask (SH3)
case RSX_VEC_OPCODE_ARL: AddCode("$ifcond $awm = " + getIntTypeName(4) + "($0);"); break;
case RSX_VEC_OPCODE_FRC: SetDSTVec(getFunction(FUNCTION::FUNCTION_FRACT)); break;
case RSX_VEC_OPCODE_FLR: SetDSTVec("floor($0)"); break;
case RSX_VEC_OPCODE_SEQ: SetDSTVec(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SEQ, "$0", "$1") + ")"); break;
case RSX_VEC_OPCODE_SFL: SetDSTVec(getFunction(FUNCTION::FUNCTION_SFL)); break;
case RSX_VEC_OPCODE_SGT: SetDSTVec(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGT, "$0", "$1") + ")"); break;
case RSX_VEC_OPCODE_SLE: SetDSTVec(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLE, "$0", "$1") + ")"); break;
case RSX_VEC_OPCODE_SNE: SetDSTVec(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SNE, "$0", "$1") + ")"); break;
case RSX_VEC_OPCODE_STR: SetDSTVec(getFunction(FUNCTION::FUNCTION_STR)); break;
case RSX_VEC_OPCODE_SSG: SetDSTVec("sign($0)"); break;
case RSX_VEC_OPCODE_TXL: SetDSTVec("texture($t, $0.xy)"); break;
default:
AddCode(fmt::format("//Unknown vp opcode 0x%x", u32{ d1.vec_opcode }));
LOG_ERROR(RSX, "Unknown vp opcode 0x%x", u32{ d1.vec_opcode });
Emu.Pause();
break;
}
}
if (is_has_BRA || !m_jump_lvls.empty())
{
m_cur_instr = &m_instructions[m_instr_count - 1];
m_cur_instr->close_scopes++;
AddCode("}");
AddCode("break;");
m_cur_instr->close_scopes++;
AddCode("}");
}
std::string result = BuildCode();
m_jump_lvls.clear();
m_body.clear();
if (m_funcs.size() > 2)
{
m_funcs.erase(m_funcs.begin() + 2, m_funcs.end());
}
return result;
}
void VertexProgramDecompiler::AddCodeCond(const std::string& dst, const std::string& src)
{
enum
{
lt = 0x1,
eq = 0x2,
gt = 0x4,
};
if (!d0.cond_test_enable || d0.cond == (lt | gt | eq))
{
AddCode(dst + " = " + src + ";");
return;
}
if (d0.cond == 0)
{
AddCode("//" + dst + " = " + src + ";");
return;
}
static const COMPARE cond_string_table[(lt | gt | eq) + 1] =
{
COMPARE::FUNCTION_SLT, // "error"
COMPARE::FUNCTION_SLT,
COMPARE::FUNCTION_SEQ,
COMPARE::FUNCTION_SLE,
COMPARE::FUNCTION_SGT,
COMPARE::FUNCTION_SNE,
COMPARE::FUNCTION_SGE,
};
static const char f[4] = { 'x', 'y', 'z', 'w' };
std::string swizzle;
swizzle += f[d0.mask_x];
swizzle += f[d0.mask_y];
swizzle += f[d0.mask_z];
swizzle += f[d0.mask_w];
swizzle = swizzle == "xyzw" ? "" : "." + swizzle;
std::string cond = compareFunction(cond_string_table[d0.cond], "cc" + std::to_string(d0.cond_reg_sel_1) + swizzle.c_str(), getFloatTypeName(4) + "(0., 0., 0., 0.)");
ShaderVariable dst_var(dst);
dst_var.symplify();
//const char *c_mask = f;
if (dst_var.swizzles[0].length() == 1)
{
AddCode("if (" + cond + ".x) " + dst + " = " + src + ";");
}
else
{
for (int i = 0; i < dst_var.swizzles[0].length(); ++i)
{
AddCode("if (" + cond + "." + f[i] + ") " + dst + "." + f[i] + " = " + src + "." + f[i] + ";");
}
}
}
std::string VertexProgramDecompiler::GetCond()
{
enum
{
lt = 0x1,
eq = 0x2,
gt = 0x4,
};
if (d0.cond == 0) return "false";
if (d0.cond == (lt | gt | eq)) return "true";
static const COMPARE cond_string_table[(lt | gt | eq) + 1] =
{
COMPARE::FUNCTION_SLT, // "error"
COMPARE::FUNCTION_SLT,
COMPARE::FUNCTION_SEQ,
COMPARE::FUNCTION_SLE,
COMPARE::FUNCTION_SGT,
COMPARE::FUNCTION_SNE,
COMPARE::FUNCTION_SGE,
};
static const char f[4] = { 'x', 'y', 'z', 'w' };
std::string swizzle;
swizzle += f[d0.mask_x];
swizzle += f[d0.mask_y];
swizzle += f[d0.mask_z];
swizzle += f[d0.mask_w];
swizzle = swizzle == "xyzw" ? "" : "." + swizzle;
return "any(" + compareFunction(cond_string_table[d0.cond], "cc" + std::to_string(d0.cond_reg_sel_1) + swizzle, getFloatTypeName(4) + "(0., 0., 0., 0.)" + swizzle) + ")";
}
std::string FragmentProgramDecompiler::AddCond()
{
return m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), "cc" + std::to_string(src0.cond_reg_index));
}
std::string VertexProgramDecompiler::AddAddrReg()
{
static const char f[] = { 'x', 'y', 'z', 'w' };
return m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), "a" + std::to_string(d0.addr_reg_sel_1), getFloatTypeName(4) + "(0, 0, 0, 0)") + AddAddrMask();
}
bool FragmentProgramDecompiler::HasReg(u32 index, int fp16)
{
return m_parr.HasParam(PF_PARAM_NONE, getFloatTypeName(4),
std::string(fp16 ? "h" : "r") + std::to_string(index));
}
std::string FragmentProgramDecompiler::AddReg(u32 index, int fp16)
{
return m_parr.AddParam(PF_PARAM_NONE, getFloatTypeName(4), std::string(fp16 ? "h" : "r") + std::to_string(index), getFloatTypeName(4) + "(0., 0., 0., 0.)");
}
std::string FragmentProgramDecompiler::Decompile()
{
auto data = vm::ps3::ptr<u32>::make(m_addr);
m_size = 0;
m_location = 0;
m_loop_count = 0;
m_code_level = 1;
enum
{
FORCE_NONE,
FORCE_SCT,
FORCE_SCB,
};
int forced_unit = FORCE_NONE;
while (true)
{
for (auto finded = std::find(m_end_offsets.begin(), m_end_offsets.end(), m_size);
finded != m_end_offsets.end();
finded = std::find(m_end_offsets.begin(), m_end_offsets.end(), m_size))
{
m_end_offsets.erase(finded);
m_code_level--;
AddCode("}");
m_loop_count--;
}
for (auto finded = std::find(m_else_offsets.begin(), m_else_offsets.end(), m_size);
finded != m_else_offsets.end();
finded = std::find(m_else_offsets.begin(), m_else_offsets.end(), m_size))
{
m_else_offsets.erase(finded);
m_code_level--;
AddCode("}");
AddCode("else");
AddCode("{");
m_code_level++;
}
dst.HEX = GetData(data[0]);
src0.HEX = GetData(data[1]);
src1.HEX = GetData(data[2]);
src2.HEX = GetData(data[3]);
m_offset = 4 * sizeof(u32);
const u32 opcode = dst.opcode | (src1.opcode_is_branch << 6);
auto SCT = [&]()
{
switch (opcode)
{
case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); break;
case RSX_FP_OPCODE_DIV: SetDst("($0 / $1)"); break;
case RSX_FP_OPCODE_DIVSQ: SetDst("($0 / sqrt($1).xxxx)"); break;
case RSX_FP_OPCODE_DP2: SetDst(getFunction(FUNCTION::FUNCTION_DP2)); break;
case RSX_FP_OPCODE_DP3: SetDst(getFunction(FUNCTION::FUNCTION_DP3)); break;
case RSX_FP_OPCODE_DP4: SetDst(getFunction(FUNCTION::FUNCTION_DP4)); break;
case RSX_FP_OPCODE_DP2A: SetDst(getFunction(FUNCTION::FUNCTION_DP2A)); break;
case RSX_FP_OPCODE_MAD: SetDst("($0 * $1 + $2)"); break;
case RSX_FP_OPCODE_MAX: SetDst("max($0, $1)"); break;
case RSX_FP_OPCODE_MIN: SetDst("min($0, $1)"); break;
case RSX_FP_OPCODE_MOV: SetDst("$0"); break;
case RSX_FP_OPCODE_MUL: SetDst("($0 * $1)"); break;
case RSX_FP_OPCODE_RCP: SetDst("1.0 / $0"); break;
case RSX_FP_OPCODE_RSQ: SetDst("1.f / sqrt($0)"); break;
case RSX_FP_OPCODE_SEQ: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SEQ, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SFL: SetDst(getFunction(FUNCTION::FUNCTION_SFL)); break;
case RSX_FP_OPCODE_SGE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGE, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SGT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGT, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SLE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLE, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SLT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLT, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SNE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SNE, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_STR: SetDst(getFunction(FUNCTION::FUNCTION_STR)); break;
default:
return false;
}
return true;
};
auto SCB = [&]()
{
switch (opcode)
{
case RSX_FP_OPCODE_ADD: SetDst("($0 + $1)"); break;
case RSX_FP_OPCODE_COS: SetDst("cos($0.xxxx)"); break;
case RSX_FP_OPCODE_DP2: SetDst(getFunction(FUNCTION::FUNCTION_DP2)); break;
case RSX_FP_OPCODE_DP3: SetDst(getFunction(FUNCTION::FUNCTION_DP3)); break;
case RSX_FP_OPCODE_DP4: SetDst(getFunction(FUNCTION::FUNCTION_DP4)); break;
case RSX_FP_OPCODE_DP2A: SetDst(getFunction(FUNCTION::FUNCTION_DP2A)); break;
case RSX_FP_OPCODE_DST: SetDst("vec4(distance($0, $1))"); break;
case RSX_FP_OPCODE_REFL: LOG_ERROR(RSX, "Unimplemented SCB instruction: REFL"); break; // TODO: Is this in the right category?
case RSX_FP_OPCODE_EX2: SetDst("exp2($0.xxxx)"); break;
case RSX_FP_OPCODE_FLR: SetDst("floor($0)"); break;
case RSX_FP_OPCODE_FRC: SetDst(getFunction(FUNCTION::FUNCTION_FRACT)); break;
case RSX_FP_OPCODE_LIT: SetDst(getFloatTypeName(4) + "(1.0, $0.x, ($0.x > 0.0 ? exp($0.w * log2($0.y)) : 0.0), 1.0)"); break;
case RSX_FP_OPCODE_LIF: SetDst(getFloatTypeName(4) + "(1.0, $0.y, ($0.y > 0 ? pow(2.0, $0.w) : 0.0), 1.0)"); break;
case RSX_FP_OPCODE_LRP: LOG_ERROR(RSX, "Unimplemented SCB instruction: LRP"); break; // TODO: Is this in the right category?
case RSX_FP_OPCODE_LG2: SetDst("log2($0.xxxx)"); break;
case RSX_FP_OPCODE_MAD: SetDst("($0 * $1 + $2)"); break;
case RSX_FP_OPCODE_MAX: SetDst("max($0, $1)"); break;
case RSX_FP_OPCODE_MIN: SetDst("min($0, $1)"); break;
case RSX_FP_OPCODE_MOV: SetDst("$0"); break;
case RSX_FP_OPCODE_MUL: SetDst("($0 * $1)"); break;
case RSX_FP_OPCODE_PK2: SetDst("packSnorm2x16($0)"); break; // TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478))
case RSX_FP_OPCODE_PK4: SetDst("packSnorm4x8($0)"); break; // TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478))
case RSX_FP_OPCODE_PK16: LOG_ERROR(RSX, "Unimplemented SCB instruction: PK16"); break;
case RSX_FP_OPCODE_PKB: LOG_ERROR(RSX, "Unimplemented SCB instruction: PKB"); break;
case RSX_FP_OPCODE_PKG: LOG_ERROR(RSX, "Unimplemented SCB instruction: PKG"); break;
case RSX_FP_OPCODE_SEQ: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SEQ, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SFL: SetDst(getFunction(FUNCTION::FUNCTION_SFL)); break;
case RSX_FP_OPCODE_SGE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGE, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SGT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SGT, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SIN: SetDst("sin($0.xxxx)"); break;
case RSX_FP_OPCODE_SLE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLE, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SLT: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SLT, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_SNE: SetDst(getFloatTypeName(4) + "(" + compareFunction(COMPARE::FUNCTION_SNE, "$0", "$1") + ")"); break;
case RSX_FP_OPCODE_STR: SetDst(getFunction(FUNCTION::FUNCTION_STR)); break;
default:
return false;
}
return true;
};
auto TEX_SRB = [&]()
{
switch (opcode)
{
case RSX_FP_OPCODE_DDX: SetDst(getFunction(FUNCTION::FUNCTION_DFDX)); break;
case RSX_FP_OPCODE_DDY: SetDst(getFunction(FUNCTION::FUNCTION_DFDY)); break;
case RSX_FP_OPCODE_NRM: SetDst("normalize($0)"); break;
case RSX_FP_OPCODE_BEM: LOG_ERROR(RSX, "Unimplemented TEX_SRB instruction: BEM"); break;
case RSX_FP_OPCODE_TEX: SetDst(getFunction(FUNCTION::FUNCTION_TEXTURE_SAMPLE)); break;
case RSX_FP_OPCODE_TEXBEM: SetDst("texture($t, $0.xy, $1.x)"); break;
case RSX_FP_OPCODE_TXP: SetDst("textureProj($t, $0.xyz, $1.x)"); break; //TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478) and The Simpsons Arcade Game (NPUB30563))
case RSX_FP_OPCODE_TXPBEM: SetDst("textureProj($t, $0.xyz, $1.x)"); break;
case RSX_FP_OPCODE_TXD: LOG_ERROR(RSX, "Unimplemented TEX_SRB instruction: TXD"); break;
case RSX_FP_OPCODE_TXB: SetDst("texture($t, $0.xy, $1.x)"); break;
case RSX_FP_OPCODE_TXL: SetDst("textureLod($t, $0.xy, $1.x)"); break;
case RSX_FP_OPCODE_UP2: SetDst("unpackSnorm2x16($0)"); break; // TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478))
case RSX_FP_OPCODE_UP4: SetDst("unpackSnorm4x8($0)"); break; // TODO: More testing (Sonic The Hedgehog (NPUB-30442/NPEB-00478))
case RSX_FP_OPCODE_UP16: LOG_ERROR(RSX, "Unimplemented TEX_SRB instruction: UP16"); break;
case RSX_FP_OPCODE_UPB: LOG_ERROR(RSX, "Unimplemented TEX_SRB instruction: UPB"); break;
case RSX_FP_OPCODE_UPG: LOG_ERROR(RSX, "Unimplemented TEX_SRB instruction: UPG"); break;
default:
return false;
}
return true;
};
auto SIP = [&]()
{
switch (opcode)
{
case RSX_FP_OPCODE_BRK: SetDst("break"); break;
case RSX_FP_OPCODE_CAL: LOG_ERROR(RSX, "Unimplemented SIP instruction: CAL"); break;
case RSX_FP_OPCODE_FENCT: forced_unit = FORCE_SCT; break;
case RSX_FP_OPCODE_FENCB: forced_unit = FORCE_SCB; break;
case RSX_FP_OPCODE_IFE:
AddCode("if($cond)");
if (src2.end_offset != src1.else_offset)
m_else_offsets.push_back(src1.else_offset << 2);
m_end_offsets.push_back(src2.end_offset << 2);
AddCode("{");
m_code_level++;
break;
case RSX_FP_OPCODE_LOOP:
if (!src0.exec_if_eq && !src0.exec_if_gr && !src0.exec_if_lt)
{
AddCode(fmt::Format("$ifcond for(int i%u = %u; i%u < %u; i%u += %u) {} //-> %u //LOOP",
m_loop_count, src1.init_counter, m_loop_count, src1.end_counter, m_loop_count, src1.increment, src2.end_offset));
}
else
{
AddCode(fmt::Format("$ifcond for(int i%u = %u; i%u < %u; i%u += %u) //LOOP",
m_loop_count, src1.init_counter, m_loop_count, src1.end_counter, m_loop_count, src1.increment));
m_loop_count++;
m_end_offsets.push_back(src2.end_offset << 2);
AddCode("{");
m_code_level++;
}
break;
case RSX_FP_OPCODE_REP:
if (!src0.exec_if_eq && !src0.exec_if_gr && !src0.exec_if_lt)
{
AddCode(fmt::Format("$ifcond for(int i%u = %u; i%u < %u; i%u += %u) {} //-> %u //REP",
m_loop_count, src1.init_counter, m_loop_count, src1.end_counter, m_loop_count, src1.increment, src2.end_offset));
}
else
{
AddCode(fmt::Format("if($cond) for(int i%u = %u; i%u < %u; i%u += %u) //REP",
m_loop_count, src1.init_counter, m_loop_count, src1.end_counter, m_loop_count, src1.increment));
m_loop_count++;
m_end_offsets.push_back(src2.end_offset << 2);
AddCode("{");
m_code_level++;
}
break;
case RSX_FP_OPCODE_RET: SetDst("return"); break;
default:
return false;
}
return true;
};
switch (opcode)
{
case RSX_FP_OPCODE_NOP: break;
case RSX_FP_OPCODE_KIL: SetDst("discard", false); break;
default:
if (forced_unit == FORCE_NONE)
{
if (SIP()) break;
if (SCT()) break;
if (TEX_SRB()) break;
if (SCB()) break;
}
else if (forced_unit == FORCE_SCT)
{
forced_unit = FORCE_NONE;
if (SCT()) break;
}
else if (forced_unit == FORCE_SCB)
{
forced_unit = FORCE_NONE;
if (SCB()) break;
}
LOG_ERROR(RSX, "Unknown/illegal instruction: 0x%x (forced unit %d)", opcode, forced_unit);
break;
}
m_size += m_offset;
if (dst.end) break;
assert(m_offset % sizeof(u32) == 0);
data += m_offset / sizeof(u32);
}
// flush m_code_level
m_code_level = 1;
std::string m_shader = BuildCode();
main.clear();
// m_parr.params.clear();
return m_shader;
}
template<typename T> std::string FragmentProgramDecompiler::GetSRC(T src)
{
std::string ret;
switch (src.reg_type)
{
case 0: //tmp
ret += AddReg(src.tmp_reg_index, src.fp16);
break;
case 1: //input
{
static const std::string reg_table[] =
{
"gl_Position",
"diff_color", "spec_color",
"fogc",
"tc0", "tc1", "tc2", "tc3", "tc4", "tc5", "tc6", "tc7", "tc8", "tc9",
"ssa"
};
switch (dst.src_attr_reg_num)
{
case 0x00: ret += reg_table[0]; break;
default:
if (dst.src_attr_reg_num < sizeof(reg_table) / sizeof(reg_table[0]))
{
ret += m_parr.AddParam(PF_PARAM_IN, getFloatTypeName(4), reg_table[dst.src_attr_reg_num]);
}
else
{
LOG_ERROR(RSX, "Bad src reg num: %d", u32{ dst.src_attr_reg_num });
ret += m_parr.AddParam(PF_PARAM_IN, getFloatTypeName(4), "unk");
Emu.Pause();
}
break;
}
}
break;
case 2: //const
ret += AddConst();
break;
case 3: // ??? Used by a few games, what is it?
LOG_ERROR(RSX, "Src type 3 used, please report this to a developer.");
break;
default:
LOG_ERROR(RSX, "Bad src type %d", u32{ src.reg_type });
Emu.Pause();
break;
}
static const char f[4] = { 'x', 'y', 'z', 'w' };
std::string swizzle = "";
swizzle += f[src.swizzle_x];
swizzle += f[src.swizzle_y];
swizzle += f[src.swizzle_z];
swizzle += f[src.swizzle_w];
if (strncmp(swizzle.c_str(), f, 4) != 0) ret += "." + swizzle;
if (src.abs) ret = "abs(" + ret + ")";
if (src.neg) ret = "-" + ret;
return ret;
}