-#include <algorithm>
-#include <msp/strings/format.h>
-#include <msp/strings/lexicalcast.h>
-#include <msp/strings/utils.h>
-#include "error.h"
-#include "vertexformat.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-VertexFormat::VertexFormat():
- data(0)
-{ }
-
-VertexFormat::VertexFormat(VertexComponent c):
- data(new unsigned char[8])
-{
- data[0] = 1;
- data[1] = c;
-}
-
-VertexFormat::VertexFormat(const VertexFormat &f):
- data(0)
-{
- *this = f;
-}
-
-VertexFormat &VertexFormat::operator=(const VertexFormat &f)
-{
- delete[] data;
- if(f.data)
- {
- data = new unsigned char[(f.data[0]&~7)+8];
- copy(f.data, f.data+f.data[0]+1, data);
- }
- else
- data = 0;
-
- return *this;
-}
-
-VertexFormat::~VertexFormat()
-{
- delete[] data;
-}
-
-VertexFormat VertexFormat::operator,(VertexComponent c) const
-{
- VertexFormat r = *this;
- if(r.data)
- {
- const unsigned char n = ++r.data[0];
- if((n&7)==0)
- {
- unsigned char *newdt = new unsigned char[n+8];
- copy(r.data, r.data+n, newdt);
- delete r.data;
- r.data = newdt;
- }
- r.data[n] = c;
- }
- else
- {
- r.data = new unsigned char[8];
- r.data[0] = 1;
- r.data[1] = c;
- }
-
- return r;
-}
-
-VertexFormat VertexFormat::operator,(unsigned i) const
-{
- if(!data)
- throw invalid_operation("VertexFormat::operator,");
- VertexFormat r = *this;
- unsigned char *c = r.data+r.data[0];
- if((*c<TEXCOORD1 && i>0) || (*c<ATTRIB1 && i>=8) || i>=53)
- throw invalid_argument("VertexFormat::operator,");
- *c += i*4;
-
- return r;
-}
-
-unsigned VertexFormat::stride() const
-{
- unsigned s = 0;
- for(const unsigned char *i=begin(); i!=end(); ++i)
- s += get_component_size(*i);
- return s;
-}
-
-int VertexFormat::offset(VertexComponent comp, unsigned index) const
-{
- if((comp<TEXCOORD1 && index>0) || (comp<ATTRIB1 && index>=8) || index>=53)
- throw out_of_range("VertexFormat::offset");
-
- unsigned type = get_component_type(comp)+index;
- unsigned size = get_component_size(comp);
- unsigned offs = 0;
- for(const unsigned char *i=begin(); i!=end(); ++i)
- {
- if(get_component_type(*i)==type)
- {
- if(get_component_size(*i)>=size)
- return offs;
- else
- return -1;
- }
- else
- offs += get_component_size(*i);
- }
-
- return -1;
-}
-
-void operator>>(const LexicalConverter &conv, VertexComponent &c)
-{
- const string &str = conv.get();
- if(str.size()==7 && !str.compare(0, 6, "VERTEX") && str[6]>='2' && str[6]<='4')
- c = static_cast<VertexComponent>(VERTEX2+(str[6]-'2'));
- else if(str=="NORMAL3")
- c = NORMAL3;
- else if(str.size()==12 && !str.compare(0, 5, "COLOR") && str[5]>='3' && str[5]<='4' && !str.compare(6, 6, "_FLOAT"))
- c = static_cast<VertexComponent>(COLOR3_FLOAT+(str[5]-'3'));
- else if(str=="COLOR4_UBYTE")
- c = COLOR4_UBYTE;
- else if(str.size()>=9 && !str.compare(0, 8, "TEXCOORD") && str[8]>='1' && str[8]<='4')
- {
- if(str.size()==9)
- c = static_cast<VertexComponent>(TEXCOORD1+(str[8]-'1'));
- else if(str.size()==11 && str[9]=='_' && str[10]>='0' && str[10]<='7')
- c = static_cast<VertexComponent>(TEXCOORD1+(str[8]-'1')+(str[10]-'0')*4);
- else
- throw lexical_error(format("conversion of '%s' to VertexComponent", str));
- }
- else if(str.size()>=9 && !str.compare(0, 6, "ATTRIB") && str[6]>='1' && str[6]<='4' && str[7]=='_')
- {
- unsigned n;
- try
- {
- n = lexical_cast<unsigned>(str.substr(8));
- }
- catch(const lexical_error &)
- {
- throw lexical_error(format("conversion of '%s' to VertexComponent", str));
- }
- c = static_cast<VertexComponent>(ATTRIB1+(str[6]-'1')+n*4);
- }
- else
- throw lexical_error(format("conversion of '%s' to VertexComponent", str));
-}
-
-// XXX This will go away eventually
-void operator>>(const LexicalConverter &conv, VertexFormat &f)
-{
- vector<string> parts = split(conv.get(), '_');
- for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
- {
- if(*i=="COLOR4UB")
- *i = "COLOR4_UBYTE";
- else if(i->size()==7 && !i->compare(0, 5, "COLOR") && (*i)[6]=='F')
- *i = i->substr(0, 6)+"_FLOAT";
- else if(i->size()>=10 && !i->compare(0, 8, "TEXCOORD"))
- *i = i->substr(0, 9)+"_"+i->substr(9);
- else if(i->size()>=8 && !i->compare(0, 6, "ATTRIB"))
- *i = i->substr(0, 7)+"_"+i->substr(7);
- }
-
- for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
- f = (f, lexical_cast<VertexComponent>(*i));
-}
-
-} // namespace GL
-} // namespace Msp