Optimizations to preprocessor's find_define().
- don't check for __FILE__ and __LINE__ until after we've checked our hash,
since this is the less likely case.
- Check against the hard-coded hash value of the strings "__FILE__" and
"__LINE__" to avoid unnecessary strcmp() calls.
This dropped the profile of this function from 20% of our total CPU time to
10%. Of that 10%, 70% is now the hashing function.
vs.2.0
//------------------------------------------------------------------------------
// Simple Vertex Shader
//
// Constants Registers:
//
// c0-c3 = combined model-view-projection matrix
// c4 = constant color (defined by the application)
//
// Input Registers:
//
// v0 = per-vertex position
// v1 = per-vertex color
//
// Output Registers:
//
// oPos = homogeneous position
// oD0 = diffuse color
//
//------------------------------------------------------------------------------
dcl_position v0
dcl_color v1
m4x4 oPos, v0, c0 // Transform the per-vertex position into clip-space
mov oD0, v1 // Use the original per-vertex color specified
//mov oD0, c4 // Uncomment this to use the constant color stored at c4