1 /* 2 * Copyright 2009 Nicolai Haehnle. 3 * SPDX-License-Identifier: MIT 4 */ 5 6 #ifndef RADEON_SWIZZLE_H 7 #define RADEON_SWIZZLE_H 8 9 #include "radeon_program.h" 10 11 struct rc_swizzle_split { 12 unsigned char NumPhases; 13 unsigned char Phase[4]; 14 }; 15 16 /** 17 * Describe the swizzling capability of target hardware. 18 */ 19 struct rc_swizzle_caps { 20 /** 21 * Check whether the given swizzle, absolute and negate combination 22 * can be implemented natively by the hardware for this opcode. 23 * 24 * \return 1 if the swizzle is native for the given opcode 25 */ 26 int (*IsNative)(rc_opcode opcode, struct rc_src_register reg); 27 28 /** 29 * Determine how to split access to the masked channels of the 30 * given source register to obtain ALU-native swizzles. 31 */ 32 void (*Split)(struct rc_src_register reg, unsigned int mask, struct rc_swizzle_split *split); 33 }; 34 35 extern const struct rc_swizzle_caps r300_vertprog_swizzle_caps; 36 37 #endif /* RADEON_SWIZZLE_H */ 38