static INLINE void convert_color_type	(	SWspan *	span,
		GLenum	newType,
		GLuint	output
	)		`[static]`

Convert the span's color arrays to the given type. The only way 'output' can be greater than zero is when we have a fragment program that writes to gl_FragData[1] or higher.

Parameters:

output which fragment program color output is being processed

Definition at line 1128 of file s_span.c.

Referenced by _swrast_write_rgba_span(), and shade_texture_span().

{
   GLvoid *src, *dst;

   if (output > 0 || span->array->ChanType == GL_FLOAT) {
      src = span->array->attribs[FRAG_ATTRIB_COL0 + output];
      span->array->ChanType = GL_FLOAT;
   }
   else if (span->array->ChanType == GL_UNSIGNED_BYTE) {
      src = span->array->rgba8;
   }
   else {
      ASSERT(span->array->ChanType == GL_UNSIGNED_SHORT);
      src = span->array->rgba16;
   }

   if (newType == GL_UNSIGNED_BYTE) {
      dst = span->array->rgba8;
   }
   else if (newType == GL_UNSIGNED_SHORT) {
      dst = span->array->rgba16;
   }
   else {
      dst = span->array->attribs[FRAG_ATTRIB_COL0];
   }

   _mesa_convert_colors(span->array->ChanType, src,
                        newType, dst,
                        span->end, span->array->mask);

   span->array->ChanType = newType;
   span->array->rgba = dst;
}

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