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/*
* Copyright 2010 Tom Stellard <tstellar@gmail.com>
*
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
/**
* \file
*/
#include "radeon_compiler_util.h"
/**
*/
unsigned int rc_swizzle_to_writemask(unsigned int swz)
{
unsigned int mask = 0;
unsigned int i;
for(i = 0; i < 4; i++) {
mask |= 1 << GET_SWZ(swz, i);
}
mask &= RC_MASK_XYZW;
return mask;
}
unsigned int rc_src_reads_dst_mask(
rc_register_file src_file,
unsigned int src_idx,
unsigned int src_swz,
rc_register_file dst_file,
unsigned int dst_idx,
unsigned int dst_mask)
{
if (src_file != dst_file || src_idx != dst_idx) {
return RC_MASK_NONE;
}
return dst_mask & rc_swizzle_to_writemask(src_swz);
}
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