rpcs3/rpcs3/Emu/RSX/D3D12/D3D12VertexProgramDecompiler.cpp
2016-02-29 16:31:18 +01:00

228 lines
6.9 KiB
C++

#include "stdafx.h"
#include "stdafx_d3d12.h"
#ifdef _MSC_VER
#include "D3D12VertexProgramDecompiler.h"
#include "D3D12CommonDecompiler.h"
#include "Emu/System.h"
std::string D3D12VertexProgramDecompiler::getFloatTypeName(size_t elementCount)
{
return getFloatTypeNameImp(elementCount);
}
std::string D3D12VertexProgramDecompiler::getIntTypeName(size_t elementCount)
{
return "int4";
}
std::string D3D12VertexProgramDecompiler::getFunction(enum class FUNCTION f)
{
return getFunctionImp(f);
}
std::string D3D12VertexProgramDecompiler::compareFunction(COMPARE f, const std::string &Op0, const std::string &Op1)
{
return compareFunctionImp(f, Op0, Op1);
}
void D3D12VertexProgramDecompiler::insertHeader(std::stringstream &OS)
{
OS << "cbuffer SCALE_OFFSET : register(b0)" << std::endl;
OS << "{" << std::endl;
OS << " float4x4 scaleOffsetMat;" << std::endl;
OS << " int isAlphaTested;" << std::endl;
OS << " float alphaRef;" << std::endl;
OS << " float fog_param0;\n";
OS << " float fog_param1;\n";
OS << "};" << std::endl;
}
namespace
{
bool declare_input(std::stringstream & OS, const std::tuple<size_t, std::string> &attribute, const std::vector<rsx_vertex_input> &inputs, size_t reg)
{
for (const auto &real_input : inputs)
{
if (static_cast<size_t>(real_input.location) != std::get<0>(attribute))
continue;
OS << "Buffer<" << (real_input.int_type ? "int4" : "float4") << "> " << std::get<1>(attribute) << "_buffer : register(t" << reg++ << ");\n";
return true;
}
return false;
}
}
void D3D12VertexProgramDecompiler::insertInputs(std::stringstream & OS, const std::vector<ParamType>& inputs)
{
std::vector<std::tuple<size_t, std::string>> input_data;
for (const ParamType PT : inputs)
{
for (const ParamItem &PI : PT.items)
{
input_data.push_back(std::make_tuple(PI.location, PI.name));
}
}
std::sort(input_data.begin(), input_data.end());
size_t t_register = 0;
for (const auto &attribute : input_data)
{
if (declare_input(OS, attribute, rsx_vertex_program.rsx_vertex_inputs, t_register))
t_register++;
}
}
void D3D12VertexProgramDecompiler::insertConstants(std::stringstream & OS, const std::vector<ParamType> & constants)
{
OS << "cbuffer CONSTANT_BUFFER : register(b1)" << std::endl;
OS << "{" << std::endl;
for (const ParamType PT : constants)
{
for (const ParamItem &PI : PT.items)
OS << " " << PT.type << " " << PI.name << ";" << std::endl;
}
OS << "};" << std::endl;
}
void D3D12VertexProgramDecompiler::insertOutputs(std::stringstream & OS, const std::vector<ParamType> & outputs)
{
OS << "struct PixelInput" << std::endl;
OS << "{" << std::endl;
OS << " float4 dst_reg0 : SV_POSITION;" << std::endl;
OS << " float4 dst_reg1 : COLOR0;" << std::endl;
OS << " float4 dst_reg2 : COLOR1;" << std::endl;
OS << " float4 dst_reg3 : COLOR2;" << std::endl;
OS << " float4 dst_reg4 : COLOR3;" << std::endl;
OS << " float dst_reg5 : FOG;" << std::endl;
OS << " float4 dst_reg6 : TEXCOORD9;" << std::endl;
OS << " float4 dst_reg7 : TEXCOORD0;" << std::endl;
OS << " float4 dst_reg8 : TEXCOORD1;" << std::endl;
OS << " float4 dst_reg9 : TEXCOORD2;" << std::endl;
OS << " float4 dst_reg10 : TEXCOORD3;" << std::endl;
OS << " float4 dst_reg11 : TEXCOORD4;" << std::endl;
OS << " float4 dst_reg12 : TEXCOORD5;" << std::endl;
OS << " float4 dst_reg13 : TEXCOORD6;" << std::endl;
OS << " float4 dst_reg14 : TEXCOORD7;" << std::endl;
OS << " float4 dst_reg15 : TEXCOORD8;" << std::endl;
OS << "};" << std::endl;
}
struct reg_info
{
std::string name;
bool need_declare;
std::string src_reg;
std::string src_reg_mask;
bool need_cast;
};
static const reg_info reg_table[] =
{
{ "gl_Position", false, "dst_reg0", "", false },
{ "diff_color", true, "dst_reg1", "", false },
{ "spec_color", true, "dst_reg2", "", false },
{ "front_diff_color", true, "dst_reg3", "", false },
{ "front_spec_color", true, "dst_reg4", "", false },
{ "fogc", true, "dst_reg5", ".x", true },
{ "gl_ClipDistance[0]", false, "dst_reg5", ".y", false },
{ "gl_ClipDistance[1]", false, "dst_reg5", ".z", false },
{ "gl_ClipDistance[2]", false, "dst_reg5", ".w", false },
// TODO: Handle user clip distance properly
/* { "gl_PointSize", false, "dst_reg6", ".x", false },
{ "gl_ClipDistance[3]", false, "dst_reg6", ".y", false },
{ "gl_ClipDistance[4]", false, "dst_reg6", ".z", false },
{ "gl_ClipDistance[5]", false, "dst_reg6", ".w", false },*/
{ "tc9", false, "dst_reg6", "", false },
{ "tc0", true, "dst_reg7", "", false },
{ "tc1", true, "dst_reg8", "", false },
{ "tc2", true, "dst_reg9", "", false },
{ "tc3", true, "dst_reg10", "", false },
{ "tc4", true, "dst_reg11", "", false },
{ "tc5", true, "dst_reg12", "", false },
{ "tc6", true, "dst_reg13", "", false },
{ "tc7", true, "dst_reg14", "", false },
{ "tc8", true, "dst_reg15", "", false },
};
namespace
{
void add_input(std::stringstream & OS, const ParamItem &PI, const std::vector<rsx_vertex_input> &inputs)
{
for (const auto &real_input : inputs)
{
if (real_input.location != PI.location)
continue;
if (!real_input.is_array)
{
OS << " float4 " << PI.name << " = " << PI.name << "_buffer[0];\n";
return;
}
if (real_input.frequency > 1)
{
if (real_input.is_modulo)
{
OS << " float4 " << PI.name << " = " << PI.name << "_buffer[vertex_id % " << real_input.frequency << "];\n";
return;
}
OS << " float4 " << PI.name << " = " << PI.name << "_buffer[vertex_id / " << real_input.frequency << "];\n";
return;
}
OS << " float4 " << PI.name << " = " << PI.name << "_buffer[vertex_id];\n";
return;
}
OS << " float4 " << PI.name << " = float4(0., 0., 0., 1.);\n";
}
}
void D3D12VertexProgramDecompiler::insertMainStart(std::stringstream & OS)
{
insert_d3d12_legacy_function(OS);
OS << "PixelInput main(uint vertex_id : SV_VertexID)" << std::endl;
OS << "{" << std::endl;
// Declare inside main function
for (const ParamType PT : m_parr.params[PF_PARAM_NONE])
{
for (const ParamItem &PI : PT.items)
{
OS << " " << PT.type << " " << PI.name;
if (!PI.value.empty())
OS << " = " << PI.value;
else
OS << " = " << "float4(0., 0., 0., 0.);";
OS << ";" << std::endl;
}
}
for (const ParamType PT : m_parr.params[PF_PARAM_IN])
{
for (const ParamItem &PI : PT.items)
{
add_input(OS, PI, rsx_vertex_program.rsx_vertex_inputs);
}
}
}
void D3D12VertexProgramDecompiler::insertMainEnd(std::stringstream & OS)
{
OS << " PixelInput Out = (PixelInput)0;" << std::endl;
// Declare inside main function
for (auto &i : reg_table)
{
if (m_parr.HasParam(PF_PARAM_NONE, "float4", i.src_reg))
OS << " Out." << i.src_reg << " = " << i.src_reg << ";" << std::endl;
}
OS << " Out.dst_reg0 = mul(Out.dst_reg0, scaleOffsetMat);" << std::endl;
OS << " return Out;" << std::endl;
OS << "}" << std::endl;
}
D3D12VertexProgramDecompiler::D3D12VertexProgramDecompiler(const RSXVertexProgram &prog) :
VertexProgramDecompiler(prog), rsx_vertex_program(prog)
{
}
#endif