#include <algorithm>
+#include <msp/io/print.h>
#include <msp/strings/format.h>
#include <msp/strings/lexicalcast.h>
#include <msp/strings/utils.h>
#include "error.h"
-#include "misc.h"
#include "vertexformat.h"
-#include <msp/gl/extensions/arb_vertex_shader.h>
using namespace std;
return r;
}
+VertexFormat VertexFormat::operator,(DataType t) const
+{
+ if(!count)
+ throw invalid_operation("VertexFormat::operator,");
+
+ VertexFormat r = *this;
+ UInt16 &a = r.attributes[r.count-1];
+ a = make_typed_attribute(static_cast<VertexAttribute>(a), t);
+
+ return r;
+}
+
VertexFormat VertexFormat::operator,(unsigned i) const
{
if(!count)
throw invalid_operation("VertexFormat::operator,");
VertexFormat r = *this;
- unsigned char &a = r.attributes[r.count-1];
+ UInt16 &a = r.attributes[r.count-1];
a = make_indexed_attribute(static_cast<VertexAttribute>(a), i);
return r;
unsigned VertexFormat::stride() const
{
unsigned s = 0;
- for(const unsigned char *i=begin(); i!=end(); ++i)
+ for(const UInt16 *i=begin(); i!=end(); ++i)
s += get_attribute_size(*i);
return s;
}
int VertexFormat::offset(VertexAttribute attr) const
{
unsigned sem = get_attribute_semantic(attr);
- unsigned sz = get_attribute_size(attr);
unsigned offs = 0;
- for(const unsigned char *i=begin(); i!=end(); ++i)
+ for(const UInt16 *i=begin(); i!=end(); ++i)
{
if(get_attribute_semantic(*i)==sem)
{
- if(get_attribute_size(*i)>=sz)
+ if(get_attribute_source_type(*i)==get_attribute_source_type(attr) &&
+ get_attribute_component_count(*i)>=get_attribute_component_count(attr))
return offs;
else
return -1;
}
+VertexAttribute make_typed_attribute(VertexAttribute attr, DataType type)
+{
+ if(is_matrix(type) || is_vector(type) || is_image(type))
+ throw invalid_argument("make_typed_attribute");
+ if(is_integer_attribute(attr) && is_float(type))
+ throw invalid_argument("make_typed_attribute");
+
+ return static_cast<VertexAttribute>((attr&0xFC0F) | (type&0x0F)<<4 | (type&0x300)>>1);
+}
+
VertexAttribute make_indexed_attribute(VertexAttribute attr, unsigned index)
{
unsigned base = attr;
- if(attr>=TEXCOORD1 && attr<=TEXCOORD4)
+ if(get_attribute_semantic(attr)==get_attribute_semantic(TEXCOORD1))
{
if(index>=4)
throw out_of_range("make_indexed_attribute");
}
- else if(attr>=RAW_ATTRIB1 && attr<=RAW_ATTRIB4)
- base &= 7;
- else if(attr<GENERIC1 || attr>GENERIC4)
+ else if(get_attribute_semantic(attr)==get_attribute_semantic(RAW_ATTRIB1))
+ base &= 0x3FF;
+ else if(get_attribute_semantic(attr)!=get_attribute_semantic(GENERIC1))
throw invalid_argument("make_indexed_attribute");
- static int max_attribs = -1;
- if(max_attribs<0)
- max_attribs = get_i(GL_MAX_VERTEX_ATTRIBS);
-
- if(static_cast<int>((base>>3)+index)>=max_attribs)
+ if(get_attribute_semantic(base)+index>=63)
throw out_of_range("make_indexed_attribute");
- return static_cast<VertexAttribute>(base+index*8);
+ return static_cast<VertexAttribute>(base+(index<<10));
}
-void operator>>(const LexicalConverter &conv, VertexAttribute &a)
+
+bool convert_attribute_type(string::const_iterator &i, string::const_iterator end, const char *name, VertexAttribute &attr, DataType type)
{
- const string &str = conv.get();
- if(str.size()==7 && !str.compare(0, 6, "VERTEX") && str[6]>='2' && str[6]<='4')
- a = static_cast<VertexAttribute>(VERTEX2+(str[6]-'2'));
- else if(str=="NORMAL3")
- a = NORMAL3;
- else if(str.size()==12 && !str.compare(0, 5, "COLOR") && str[5]>='3' && str[5]<='4' && !str.compare(6, 6, "_FLOAT"))
- a = static_cast<VertexAttribute>(COLOR3_FLOAT+(str[5]-'3'));
- else if(str=="COLOR4_UBYTE")
- a = COLOR4_UBYTE;
- else if(str=="TANGENT3")
- a = TANGENT3;
- else if(str=="BINORMAL3")
- a = BINORMAL3;
- else if(str.size()>=9 && !str.compare(0, 8, "TEXCOORD") && str[8]>='1' && str[8]<='4')
+ string::const_iterator j = i;
+ for(; (j!=end && *j!='_' && *name); ++name, ++j)
+ if(*j!=*name)
+ return false;
+
+ attr = make_typed_attribute(attr, type);
+ i = j;
+
+ return true;
+}
+
+bool convert_attribute(const string &str, const char *name, int min_size, int max_size, VertexAttribute &attr, VertexAttribute base_attr)
+{
+ string::const_iterator i = str.begin();
+ for(; *name; ++name, ++i)
+ if(*i!=*name)
+ return false;
+
+ VertexAttribute result = base_attr;
+
+ if(i!=str.end() && *i=='_')
{
- if(str.size()==9)
- a = static_cast<VertexAttribute>(TEXCOORD1+(str[8]-'1'));
- else if(str.size()==11 && str[9]=='_' && str[10]>='0' && str[10]<='3')
- a = make_indexed_attribute(static_cast<VertexAttribute>(TEXCOORD1+(str[8]-'1')), str[10]-'0');
- else
- throw lexical_error(format("conversion of '%s' to VertexAttribute", str));
+ if(*(++i)++!='I')
+ return false;
+ result = static_cast<VertexAttribute>(result|8);
}
- else if(str.size()>=10 && !str.compare(0, 6, "GENERIC") && str[7]>='1' && str[7]<='4' && str[8]=='_')
+
+ if(i==str.end() || *i<'0'+min_size || *i>'0'+max_size)
+ return false;
+ result = static_cast<VertexAttribute>(result+(*i++-'0'-min_size));
+
+ while(i!=str.end())
{
- unsigned n;
- try
- {
- n = lexical_cast<unsigned>(str.substr(9));
- }
- catch(const lexical_error &)
+ if(*i!='_' || ++i==str.end())
+ return false;
+
+ if(isdigit(*i))
{
- throw lexical_error(format("conversion of '%s' to VertexAttribute", str));
+ unsigned index = 0;
+ for(; (i!=str.end() && isdigit(*i)); ++i)
+ index = index*10+(*i-'0');
+ result = make_indexed_attribute(result, index);
}
- a = make_indexed_attribute(static_cast<VertexAttribute>(GENERIC1+(str[7]-'1')), n);
+ else if(convert_attribute_type(i, str.end(), "UBYTE", result, UNSIGNED_BYTE) ||
+ convert_attribute_type(i, str.end(), "BYTE", result, BYTE) ||
+ convert_attribute_type(i, str.end(), "USHORT", result, UNSIGNED_SHORT) ||
+ convert_attribute_type(i, str.end(), "SHORT", result, SHORT) ||
+ convert_attribute_type(i, str.end(), "UINT", result, UNSIGNED_INT) ||
+ convert_attribute_type(i, str.end(), "INT", result, INT) ||
+ convert_attribute_type(i, str.end(), "FLOAT", result, FLOAT))
+ ;
+ else
+ return false;
+ }
+
+ attr = result;
+ return true;
+}
+
+void operator>>(const LexicalConverter &conv, VertexAttribute &a)
+{
+ const string &str = conv.get();
+ try
+ {
+ if(convert_attribute(str, "VERTEX", 2, 4, a, VERTEX2) ||
+ convert_attribute(str, "COLOR", 3, 4, a, COLOR3) ||
+ convert_attribute(str, "NORMAL", 3, 3, a, NORMAL3) ||
+ convert_attribute(str, "TANGENT", 3, 3, a, TANGENT3) ||
+ convert_attribute(str, "GROUP", 1, 4, a, GROUP1) ||
+ convert_attribute(str, "WEIGHT", 1, 4, a, WEIGHT1) ||
+ convert_attribute(str, "TEXCOORD", 1, 4, a, TEXCOORD1) ||
+ convert_attribute(str, "GENERIC", 1, 4, a, GENERIC1))
+ return;
}
- else
- throw lexical_error(format("conversion of '%s' to VertexAttribute", str));
+ catch(...)
+ { }
+
+ throw lexical_error(format("conversion of '%s' to VertexAttribute", str));
}
} // namespace GL
projects / libs / gl.git / blobdiff