bool CShaderManager::NewProgram(const char* name, const CShaderDefines& baseDefines, CShaderProgramPtr& program)
{
PROFILE2("loading shader");
PROFILE2_ATTR("name: %s", name);
if (strncmp(name, "fixed:", 6) == 0)
{
program = CShaderProgramPtr(CShaderProgram::ConstructFFP(name+6, baseDefines));
if (!program)
return false;
program->Reload();
return true;
}
VfsPath xmlFilename = L"shaders/" + wstring_from_utf8(name) + L".xml";
CXeromyces XeroFile;
PSRETURN ret = XeroFile.Load(g_VFS, xmlFilename);
if (ret != PSRETURN_OK)
return false;
#if USE_SHADER_XML_VALIDATION
{
TIMER_ACCRUE(tc_ShaderValidation);
// Serialize the XMB data and pass it to the validator
XML_Start();
XML_SetPrettyPrint(false);
XML_WriteXMB(XeroFile);
bool ok = m_Validator.ValidateEncoded(wstring_from_utf8(name), XML_GetOutput());
if (!ok)
return false;
}
#endif
// Define all the elements and attributes used in the XML file
#define EL(x) int el_##x = XeroFile.GetElementID(#x)
#define AT(x) int at_##x = XeroFile.GetAttributeID(#x)
EL(attrib);
EL(define);
EL(fragment);
EL(stream);
EL(uniform);
EL(vertex);
AT(file);
AT(if);
AT(loc);
AT(name);
AT(semantics);
AT(type);
AT(value);
#undef AT
#undef EL
CPreprocessorWrapper preprocessor;
preprocessor.AddDefines(baseDefines);
XMBElement Root = XeroFile.GetRoot();
bool isGLSL = (Root.GetAttributes().GetNamedItem(at_type) == "glsl");
VfsPath vertexFile;
VfsPath fragmentFile;
CShaderDefines defines = baseDefines;
std::map<CStrIntern, int> vertexUniforms;
std::map<CStrIntern, CShaderProgram::frag_index_pair_t> fragmentUniforms;
std::map<CStrIntern, int> vertexAttribs;
int streamFlags = 0;
XERO_ITER_EL(Root, Child)
{
if (Child.GetNodeName() == el_define)
{
defines.Add(CStrIntern(Child.GetAttributes().GetNamedItem(at_name)), CStrIntern(Child.GetAttributes().GetNamedItem(at_value)));
}
else if (Child.GetNodeName() == el_vertex)
{
vertexFile = L"shaders/" + Child.GetAttributes().GetNamedItem(at_file).FromUTF8();
XERO_ITER_EL(Child, Param)
{
XMBAttributeList Attrs = Param.GetAttributes();
CStr cond = Attrs.GetNamedItem(at_if);
if (!cond.empty() && !preprocessor.TestConditional(cond))
continue;
if (Param.GetNodeName() == el_uniform)
{
vertexUniforms[CStrIntern(Attrs.GetNamedItem(at_name))] = Attrs.GetNamedItem(at_loc).ToInt();
}
else if (Param.GetNodeName() == el_stream)
{
CStr StreamName = Attrs.GetNamedItem(at_name);
if (StreamName == "pos")
streamFlags |= STREAM_POS;
else if (StreamName == "normal")
streamFlags |= STREAM_NORMAL;
else if (StreamName == "color")
streamFlags |= STREAM_COLOR;
else if (StreamName == "uv0")
streamFlags |= STREAM_UV0;
else if (StreamName == "uv1")
streamFlags |= STREAM_UV1;
else if (StreamName == "uv2")
streamFlags |= STREAM_UV2;
else if (StreamName == "uv3")
streamFlags |= STREAM_UV3;
}
else if (Param.GetNodeName() == el_attrib)
{
int attribLoc = ParseAttribSemantics(Attrs.GetNamedItem(at_semantics));
vertexAttribs[CStrIntern(Attrs.GetNamedItem(at_name))] = attribLoc;
}
}
}
CMaterial CMaterialManager::LoadMaterial(const VfsPath& pathname)
{
if (pathname.empty())
return CMaterial();
std::map<VfsPath, CMaterial>::iterator iter = m_Materials.find(pathname);
if (iter != m_Materials.end())
return iter->second;
CXeromyces xeroFile;
if (xeroFile.Load(g_VFS, pathname, "material") != PSRETURN_OK)
return CMaterial();
#define EL(x) int el_##x = xeroFile.GetElementID(#x)
#define AT(x) int at_##x = xeroFile.GetAttributeID(#x)
EL(alpha_blending);
EL(alternative);
EL(define);
EL(shader);
EL(uniform);
EL(renderquery);
EL(required_texture);
EL(conditional_define);
AT(effect);
AT(if);
AT(define);
AT(quality);
AT(material);
AT(name);
AT(value);
AT(type);
AT(min);
AT(max);
AT(conf);
#undef AT
#undef EL
CMaterial material;
XMBElement root = xeroFile.GetRoot();
CPreprocessorWrapper preprocessor;
preprocessor.AddDefine("CFG_FORCE_ALPHATEST", g_Renderer.m_Options.m_ForceAlphaTest ? "1" : "0");
CVector4D vec(qualityLevel,0,0,0);
material.AddStaticUniform("qualityLevel", vec);
XERO_ITER_EL(root, node)
{
int token = node.GetNodeName();
XMBAttributeList attrs = node.GetAttributes();
if (token == el_alternative)
{
CStr cond = attrs.GetNamedItem(at_if);
if (cond.empty() || !preprocessor.TestConditional(cond))
{
cond = attrs.GetNamedItem(at_quality);
if (cond.empty())
continue;
else
{
if (cond.ToFloat() <= qualityLevel)
continue;
}
}
material = LoadMaterial(VfsPath("art/materials") / attrs.GetNamedItem(at_material).FromUTF8());
break;
}
else if (token == el_alpha_blending)
{
material.SetUsesAlphaBlending(true);
}
else if (token == el_shader)
{
material.SetShaderEffect(attrs.GetNamedItem(at_effect));
}
else if (token == el_define)
{
material.AddShaderDefine(CStrIntern(attrs.GetNamedItem(at_name)), CStrIntern(attrs.GetNamedItem(at_value)));
}
else if (token == el_conditional_define)
{
std::vector<float> args;
CStr type = attrs.GetNamedItem(at_type).c_str();
int typeID = -1;
if (type == CStr("draw_range"))
{
typeID = DCOND_DISTANCE;
float valmin = -1.0f;
float valmax = -1.0f;
CStr conf = attrs.GetNamedItem(at_conf);
if (!conf.empty())
{
CFG_GET_VAL("materialmgr." + conf + ".min", valmin);
CFG_GET_VAL("materialmgr." + conf + ".max", valmax);
}
else
{
CStr dmin = attrs.GetNamedItem(at_min);
if (!dmin.empty())
valmin = attrs.GetNamedItem(at_min).ToFloat();
CStr dmax = attrs.GetNamedItem(at_max);
if (!dmax.empty())
valmax = attrs.GetNamedItem(at_max).ToFloat();
}
args.push_back(valmin);
args.push_back(valmax);
if (valmin >= 0.0f)
{
std::stringstream sstr;
sstr << valmin;
material.AddShaderDefine(CStrIntern(conf + "_MIN"), CStrIntern(sstr.str()));
}
if (valmax >= 0.0f)
{
std::stringstream sstr;
sstr << valmax;
material.AddShaderDefine(CStrIntern(conf + "_MAX"), CStrIntern(sstr.str()));
}
}
material.AddConditionalDefine(attrs.GetNamedItem(at_name).c_str(),
attrs.GetNamedItem(at_value).c_str(),
typeID, args);
}
else if (token == el_uniform)
{
std::stringstream str(attrs.GetNamedItem(at_value));
CVector4D vec;
str >> vec.X >> vec.Y >> vec.Z >> vec.W;
material.AddStaticUniform(attrs.GetNamedItem(at_name).c_str(), vec);
}