-#include <cstring>
+#include <algorithm>
#include <msp/strings/format.h>
#include <msp/strings/lexicalcast.h>
#include <msp/strings/utils.h>
namespace GL {
VertexFormat::VertexFormat():
- data(0)
+ count(0)
{ }
VertexFormat::VertexFormat(VertexComponent c):
- data(new unsigned char[8])
+ count(1)
{
- data[0] = 1;
- data[1] = c;
-}
-
-VertexFormat::VertexFormat(const VertexFormat &f):
- data(0)
-{
- if(f.data)
- {
- data = new unsigned char[(f.data[0]&~7)+8];
- memcpy(data, f.data, f.data[0]+1);
- }
-}
-
-VertexFormat &VertexFormat::operator=(const VertexFormat &f)
-{
- delete[] data;
- if(f.data)
- {
- data = new unsigned char[(f.data[0]&~7)+8];
- memcpy(data, f.data, f.data[0]+1);
- }
- else
- data = 0;
-
- return *this;
-}
-
-VertexFormat::~VertexFormat()
-{
- delete[] data;
+ components[0] = c;
}
VertexFormat VertexFormat::operator,(VertexComponent c) const
{
+ if(count>=MAX_COMPONENTS)
+ throw invalid_operation("VertexFormat::operator,");
+
VertexFormat r = *this;
- if(r.data)
- {
- const unsigned char n = ++r.data[0];
- if((n&7)==7)
- {
- unsigned char *newdt = new unsigned char[n+9];
- memcpy(newdt, r.data, n);
- 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;
- }
+ r.components[r.count++] = c;
return r;
}
VertexFormat VertexFormat::operator,(unsigned i) const
{
- if(!data)
+ if(!count)
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;
+ unsigned char *c = &r.components[r.count-1];
+ *c = make_indexed_component(static_cast<VertexComponent>(*c), i);
return r;
}
+bool VertexFormat::operator==(const VertexFormat &other) const
+{
+ if(count!=other.count)
+ return false;
+ return equal(components, components+count, other.components);
+}
+
unsigned VertexFormat::stride() const
{
unsigned s = 0;
return s;
}
-int VertexFormat::offset(VertexComponent comp, unsigned index) const
+int VertexFormat::offset(VertexComponent comp) 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 type = get_component_type(comp);
unsigned size = get_component_size(comp);
unsigned offs = 0;
for(const unsigned char *i=begin(); i!=end(); ++i)
return -1;
}
+VertexComponent make_indexed_component(VertexComponent comp, unsigned index)
+{
+ if(comp>=TEXCOORD1 && comp<=TEXCOORD4)
+ {
+ if(index>=4)
+ throw out_of_range("make_indexed_component");
+ }
+ else if(comp>=ATTRIB1 && comp<=ATTRIB4)
+ {
+ if(index>=24)
+ throw out_of_range("make_indexed_component");
+ }
+ else
+ throw invalid_argument("make_indexed_component");
+ return static_cast<VertexComponent>(comp+index*4);
+}
+
void operator>>(const LexicalConverter &conv, VertexComponent &c)
{
const string &str = conv.get();
c = static_cast<VertexComponent>(COLOR3_FLOAT+(str[5]-'3'));
else if(str=="COLOR4_UBYTE")
c = COLOR4_UBYTE;
+ else if(str=="TANGENT3")
+ c = TANGENT3;
+ else if(str=="BINORMAL3")
+ c = BINORMAL3;
else if(str.size()>=9 && !str.compare(0, 8, "TEXCOORD") && str[8]>='1' && str[8]<='4')
{
if(str.size()==9)
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