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#ifndef SPU_SHUFFLE_H
#define SPU_SHUFFLE_H
/*
* Generate shuffle patterns with minimal fuss.
*
* Based on ideas from
* http://www.insomniacgames.com/tech/articles/0408/files/shuffles.pdf
*
* A-P indicates 0-15th position in first vector
* a-p indicates 0-15th position in second vector
*
* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
* |00|01|02|03|04|05|06|07|08|09|0a|0b|0c|0d|0e|0f|
* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
* | A| B| C| D|
* +-----+-----+-----+-----+-----+-----+-----+-----+
* | A| B| C| D| E| F| G| H|
* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
* | A| B| C| D| E| F| G| H| I| J| K| L| M| N| O| P|
* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
*
* x or X indicates 0xff
* 8 indicates 0x80
* 0 indicates 0x00
*
* The macros SHUFFLE4() SHUFFLE8() and SHUFFLE16() provide a const vector
* unsigned char literal suitable for use with spu_shuffle().
*
* The macros SHUFB4() SHUFB8() and SHUFB16() provide a const qword vector
* literal suitable for use with si_shufb().
*
*
* For example :
* SHUFB4(A,A,A,A)
* expands to :
* ((const qword){0,1,2,3,0,1,2,3,0,1,2,3,0,1,2,3})
*
* SHUFFLE8(A,B,a,b,C,c,8,8)
* expands to :
* ((const vector unsigned char){0x00,0x01,0x02,0x03,0x10,0x11,0x12,0x13,
* 0x04,0x05,0x14,0x15,0xe0,0xe0,0xe0,0xe0})
*
*/
#include <spu_intrinsics.h>
#define SHUFFLE_PATTERN_4_A__ 0x00, 0x01, 0x02, 0x03
#define SHUFFLE_PATTERN_4_B__ 0x04, 0x05, 0x06, 0x07
#define SHUFFLE_PATTERN_4_C__ 0x08, 0x09, 0x0a, 0x0b
#define SHUFFLE_PATTERN_4_D__ 0x0c, 0x0d, 0x0e, 0x0f
#define SHUFFLE_PATTERN_4_a__ 0x10, 0x11, 0x12, 0x13
#define SHUFFLE_PATTERN_4_b__ 0x14, 0x15, 0x16, 0x17
#define SHUFFLE_PATTERN_4_c__ 0x18, 0x19, 0x1a, 0x1b
#define SHUFFLE_PATTERN_4_d__ 0x1c, 0x1d, 0x1e, 0x1f
#define SHUFFLE_PATTERN_4_X__ 0xc0, 0xc0, 0xc0, 0xc0
#define SHUFFLE_PATTERN_4_x__ 0xc0, 0xc0, 0xc0, 0xc0
#define SHUFFLE_PATTERN_4_0__ 0x80, 0x80, 0x80, 0x80
#define SHUFFLE_PATTERN_4_8__ 0xe0, 0xe0, 0xe0, 0xe0
#define SHUFFLE_VECTOR_4__(A, B, C, D) \
SHUFFLE_PATTERN_4_##A##__, \
SHUFFLE_PATTERN_4_##B##__, \
SHUFFLE_PATTERN_4_##C##__, \
SHUFFLE_PATTERN_4_##D##__
#define SHUFFLE4(A, B, C, D) \
((const vector unsigned char){ \
SHUFFLE_VECTOR_4__(A, B, C, D) \
})
#define SHUFB4(A, B, C, D) \
((const qword){ \
SHUFFLE_VECTOR_4__(A, B, C, D) \
})
#define SHUFFLE_PATTERN_8_A__ 0x00, 0x01
#define SHUFFLE_PATTERN_8_B__ 0x02, 0x03
#define SHUFFLE_PATTERN_8_C__ 0x04, 0x05
#define SHUFFLE_PATTERN_8_D__ 0x06, 0x07
#define SHUFFLE_PATTERN_8_E__ 0x08, 0x09
#define SHUFFLE_PATTERN_8_F__ 0x0a, 0x0b
#define SHUFFLE_PATTERN_8_G__ 0x0c, 0x0d
#define SHUFFLE_PATTERN_8_H__ 0x0e, 0x0f
#define SHUFFLE_PATTERN_8_a__ 0x10, 0x11
#define SHUFFLE_PATTERN_8_b__ 0x12, 0x13
#define SHUFFLE_PATTERN_8_c__ 0x14, 0x15
#define SHUFFLE_PATTERN_8_d__ 0x16, 0x17
#define SHUFFLE_PATTERN_8_e__ 0x18, 0x19
#define SHUFFLE_PATTERN_8_f__ 0x1a, 0x1b
#define SHUFFLE_PATTERN_8_g__ 0x1c, 0x1d
#define SHUFFLE_PATTERN_8_h__ 0x1e, 0x1f
#define SHUFFLE_PATTERN_8_X__ 0xc0, 0xc0
#define SHUFFLE_PATTERN_8_x__ 0xc0, 0xc0
#define SHUFFLE_PATTERN_8_0__ 0x80, 0x80
#define SHUFFLE_PATTERN_8_8__ 0xe0, 0xe0
#define SHUFFLE_VECTOR_8__(A, B, C, D, E, F, G, H) \
SHUFFLE_PATTERN_8_##A##__, \
SHUFFLE_PATTERN_8_##B##__, \
SHUFFLE_PATTERN_8_##C##__, \
SHUFFLE_PATTERN_8_##D##__, \
SHUFFLE_PATTERN_8_##E##__, \
SHUFFLE_PATTERN_8_##F##__, \
SHUFFLE_PATTERN_8_##G##__, \
SHUFFLE_PATTERN_8_##H##__
#define SHUFFLE8(A, B, C, D, E, F, G, H) \
((const vector unsigned char){ \
SHUFFLE_VECTOR_8__(A, B, C, D, E, F, G, H) \
})
#define SHUFB8(A, B, C, D, E, F, G, H) \
((const qword){ \
SHUFFLE_VECTOR_8__(A, B, C, D, E, F, G, H) \
})
#define SHUFFLE_PATTERN_16_A__ 0x00
#define SHUFFLE_PATTERN_16_B__ 0x01
#define SHUFFLE_PATTERN_16_C__ 0x02
#define SHUFFLE_PATTERN_16_D__ 0x03
#define SHUFFLE_PATTERN_16_E__ 0x04
#define SHUFFLE_PATTERN_16_F__ 0x05
#define SHUFFLE_PATTERN_16_G__ 0x06
#define SHUFFLE_PATTERN_16_H__ 0x07
#define SHUFFLE_PATTERN_16_I__ 0x08
#define SHUFFLE_PATTERN_16_J__ 0x09
#define SHUFFLE_PATTERN_16_K__ 0x0a
#define SHUFFLE_PATTERN_16_L__ 0x0b
#define SHUFFLE_PATTERN_16_M__ 0x0c
#define SHUFFLE_PATTERN_16_N__ 0x0d
#define SHUFFLE_PATTERN_16_O__ 0x0e
#define SHUFFLE_PATTERN_16_P__ 0x0f
#define SHUFFLE_PATTERN_16_a__ 0x10
#define SHUFFLE_PATTERN_16_b__ 0x11
#define SHUFFLE_PATTERN_16_c__ 0x12
#define SHUFFLE_PATTERN_16_d__ 0x13
#define SHUFFLE_PATTERN_16_e__ 0x14
#define SHUFFLE_PATTERN_16_f__ 0x15
#define SHUFFLE_PATTERN_16_g__ 0x16
#define SHUFFLE_PATTERN_16_h__ 0x17
#define SHUFFLE_PATTERN_16_i__ 0x18
#define SHUFFLE_PATTERN_16_j__ 0x19
#define SHUFFLE_PATTERN_16_k__ 0x1a
#define SHUFFLE_PATTERN_16_l__ 0x1b
#define SHUFFLE_PATTERN_16_m__ 0x1c
#define SHUFFLE_PATTERN_16_n__ 0x1d
#define SHUFFLE_PATTERN_16_o__ 0x1e
#define SHUFFLE_PATTERN_16_p__ 0x1f
#define SHUFFLE_PATTERN_16_X__ 0xc0
#define SHUFFLE_PATTERN_16_x__ 0xc0
#define SHUFFLE_PATTERN_16_0__ 0x80
#define SHUFFLE_PATTERN_16_8__ 0xe0
#define SHUFFLE_VECTOR_16__(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P) \
SHUFFLE_PATTERN_16_##A##__, \
SHUFFLE_PATTERN_16_##B##__, \
SHUFFLE_PATTERN_16_##C##__, \
SHUFFLE_PATTERN_16_##D##__, \
SHUFFLE_PATTERN_16_##E##__, \
SHUFFLE_PATTERN_16_##F##__, \
SHUFFLE_PATTERN_16_##G##__, \
SHUFFLE_PATTERN_16_##H##__, \
SHUFFLE_PATTERN_16_##I##__, \
SHUFFLE_PATTERN_16_##J##__, \
SHUFFLE_PATTERN_16_##K##__, \
SHUFFLE_PATTERN_16_##L##__, \
SHUFFLE_PATTERN_16_##M##__, \
SHUFFLE_PATTERN_16_##N##__, \
SHUFFLE_PATTERN_16_##O##__, \
SHUFFLE_PATTERN_16_##P
#define SHUFFLE16(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P) \
((const vector unsigned char){ \
SHUFFLE_VECTOR_16__(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P) \
})
#define SHUFB16(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P) \
((const qword){ \
SHUFFLE_VECTOR_16__(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P) \
})
#endif
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