1 /* 2 * Copyright (C) 2009 Nicolai Haehnle. 3 * 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining 7 * a copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sublicense, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial 16 * portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 21 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 */ 27 28 #ifndef RADEON_SWIZZLE_H 29 #define RADEON_SWIZZLE_H 30 31 #include "radeon_program.h" 32 33 struct rc_swizzle_split { 34 unsigned char NumPhases; 35 unsigned char Phase[4]; 36 }; 37 38 /** 39 * Describe the swizzling capability of target hardware. 40 */ 41 struct rc_swizzle_caps { 42 /** 43 * Check whether the given swizzle, absolute and negate combination 44 * can be implemented natively by the hardware for this opcode. 45 * 46 * \return 1 if the swizzle is native for the given opcode 47 */ 48 int (*IsNative)(rc_opcode opcode, struct rc_src_register reg); 49 50 /** 51 * Determine how to split access to the masked channels of the 52 * given source register to obtain ALU-native swizzles. 53 */ 54 void (*Split)(struct rc_src_register reg, unsigned int mask, struct rc_swizzle_split * split); 55 }; 56 57 extern struct rc_swizzle_caps r300_vertprog_swizzle_caps; 58 59 #endif /* RADEON_SWIZZLE_H */ 60
