/*
* Copyright (C) 2009 Nicolai Haehnle.
*
* 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.
*
*/
#ifndef RADEON_SWIZZLE_H
#define RADEON_SWIZZLE_H
#include "radeon_program.h"
struct rc_swizzle_split {
unsigned char NumPhases;
unsigned char Phase[4];
};
/**
* Describe the swizzling capability of target hardware.
*/
struct rc_swizzle_caps {
/**
* Check whether the given swizzle, absolute and negate combination
* can be implemented natively by the hardware for this opcode.
*
* \return 1 if the swizzle is native for the given opcode
*/
int (*IsNative)(rc_opcode opcode, struct rc_src_register reg);
/**
* Determine how to split access to the masked channels of the
* given source register to obtain ALU-native swizzles.
*/
void (*Split)(struct rc_src_register reg, unsigned int mask, struct rc_swizzle_split * split);
};
extern struct rc_swizzle_caps r300_vertprog_swizzle_caps;
#endif /* RADEON_SWIZZLE_H */