NAME
cgD3D9ValidateVertexDeclaration - validate a custom D3D9 vertex declaration stream
SYNOPSIS
#include <Cg/cgD3D9.h> CGbool cgD3D9ValidateVertexDeclaration( CGprogram program, const D3DVERTEXELEMENT9 * decl );PARAMETERS
- program
The program to test for compatibility.
- decl
The D3D9 custom vertex declaration stream to test for compatibility. It must be terminated by D3DDECL_END().
RETURN VALUES
Returns CG_TRUE if the vertex stream is compatible.
Returns CG_FALSE otherwise.
DESCRIPTION
cgD3D9ValidateVertexDeclaration tests a custom D3D9 vertex declaration stream for compatibility with the inputs expected by a program.
For a vertex stream to be compatible with a program's expected inputs it must have a D3DVERTEXELEMENT9 element for each varying input parameter that the program uses.
EXAMPLES
// Decl is a custom vertex declaraton already setup CGbool ret = cgD3D9ValidateVertexDeclaration( program, Decl ); if( ret == CG_FALSE ) printf( "Vertex declaration not compatable with " "the program's varying parameters.\n" );ERRORS
CG_INVALID_PROGRAM_HANDLE_ERROR is generated if program is not a valid program handle.
HISTORY
cgD3D9ValidateVertexDeclaration was introduced in Cg 1.1.
SEE ALSO