diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/x86/mmx_blend.S')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/x86/mmx_blend.S | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/x86/mmx_blend.S b/nx-X11/extras/Mesa/src/mesa/x86/mmx_blend.S new file mode 100644 index 000000000..f7326cdbe --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/x86/mmx_blend.S @@ -0,0 +1,366 @@ + +/* + * Written by José Fonseca <j_r_fonseca@yahoo.co.uk> + */ + + +#ifdef USE_MMX_ASM +#include "matypes.h" + +/* integer multiplication - alpha plus one + * + * makes the following approximation to the division (Sree) + * + * rgb*a/255 ~= (rgb*(a+1)) >> 256 + * + * which is the fastest method that satisfies the following OpenGL criteria + * + * 0*0 = 0 and 255*255 = 255 + * + * note that MX1 is a register with 0xffffffffffffffff constant which can be easily obtained making + * + * PCMPEQW ( MX1, MX1 ) + */ +#define GMB_MULT_AP1( MP1, MA1, MP2, MA2, MX1 ) \ + PSUBW ( MX1, MA1 ) /* a1 + 1 | a1 + 1 | a1 + 1 | a1 + 1 */ ;\ + PMULLW ( MP1, MA1 ) /* t1 = p1*a1 */ ;\ + ;\ +TWO(PSUBW ( MX1, MA2 )) /* a2 + 1 | a2 + 1 | a2 + 1 | a2 + 1 */ ;\ +TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\ + ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 ~= t1/255 */ ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 ~= t2/255 */ + + +/* integer multiplication - geometric series + * + * takes the geometric series approximation to the division + * + * t/255 = (t >> 8) + (t >> 16) + (t >> 24) .. + * + * in this case just the first two terms to fit in 16bit arithmetic + * + * t/255 ~= (t + (t >> 8)) >> 8 + * + * note that just by itself it doesn't satisfies the OpenGL criteria, as 255*255 = 254, + * so the special case a = 255 must be accounted or roundoff must be used + */ +#define GMB_MULT_GS( MP1, MA1, MP2, MA2 ) \ + PMULLW ( MP1, MA1 ) /* t1 = p1*a1 */ ;\ +TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\ + ;\ + MOVQ ( MA1, MP1 ) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ + ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ + ;\ + PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ + PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\ + ;\ +TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ + + +/* integer multiplication - geometric series plus rounding + * + * when using a geometric series division instead of truncating the result + * use roundoff in the approximation (Jim Blinn) + * + * t = rgb*a + 0x80 + * + * achieving the exact results + * + * note that M80 is register with the 0x0080008000800080 constant + */ +#define GMB_MULT_GSR( MP1, MA1, MP2, MA2, M80 ) \ + PMULLW ( MP1, MA1 ) /* t1 = p1*a1 */ ;\ + PADDW ( M80, MA1 ) /* t1 += 0x80 */ ;\ + ;\ +TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\ +TWO(PADDW ( M80, MA2 )) /* t2 += 0x80 */ ;\ + ;\ + MOVQ ( MA1, MP1 ) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ + ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ + ;\ + PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ + PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\ + ;\ +TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ + + +/* linear interpolation - geometric series + */ +#define GMB_LERP_GS( MP1, MQ1, MA1, MP2, MQ2, MA2) \ + PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\ + PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\ + PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\ + ;\ +TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ +TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ +TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\ + ;\ + MOVQ ( MA1, MP1 ) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ + ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ + ;\ + PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ +TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ + ;\ + PADDW ( MQ1, MA1 ) /* (t1/255 + q1) << 8 */ ;\ +TWO(PADDW ( MQ2, MA2 )) /* (t2/255 + q2) << 8 */ ;\ + ;\ + PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ + + +/* linear interpolation - geometric series with roundoff + * + * this is a generalization of Blinn's formula to signed arithmetic + * + * note that M80 is a register with the 0x0080008000800080 constant + */ +#define GMB_LERP_GSR( MP1, MQ1, MA1, MP2, MQ2, MA2, M80) \ + PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\ + PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\ + PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\ + ;\ +TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ +TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ +TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\ + ;\ + PSRLW ( CONST(15), MP1 ) /* q1 > p1 ? 1 : 0 */ ;\ +TWO(PSRLW ( CONST(15), MP2 )) /* q2 > q2 ? 1 : 0 */ ;\ + ;\ + PSLLW ( CONST(8), MP1 ) /* q1 > p1 ? 0x100 : 0 */ ;\ +TWO(PSLLW ( CONST(8), MP2 )) /* q2 > q2 ? 0x100 : 0 */ ;\ + ;\ + PSUBW ( MP1, MA1 ) /* t1 -=? 0x100 */ ;\ +TWO(PSUBW ( MP2, MA2 )) /* t2 -=? 0x100 */ ;\ + ;\ + PADDW ( M80, MA1 ) /* t1 += 0x80 */ ;\ +TWO(PADDW ( M80, MA2 )) /* t2 += 0x80 */ ;\ + ;\ + MOVQ ( MA1, MP1 ) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ + ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ + ;\ + PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ +TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ + ;\ + PADDW ( MQ1, MA1 ) /* (t1/255 + q1) << 8 */ ;\ +TWO(PADDW ( MQ2, MA2 )) /* (t2/255 + q2) << 8 */ ;\ + ;\ + PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ + + +/* linear interpolation - geometric series with correction + * + * instead of the roundoff this adds a small correction to satisfy the OpenGL criteria + * + * t/255 ~= (t + (t >> 8) + (t >> 15)) >> 8 + * + * note that although is faster than rounding off it doesn't give always the exact results + */ +#define GMB_LERP_GSC( MP1, MQ1, MA1, MP2, MQ2, MA2) \ + PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\ + PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\ + PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\ + ;\ +TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\ +TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\ +TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\ + ;\ + MOVQ ( MA1, MP1 ) ;\ + PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\ + ;\ +TWO(MOVQ ( MA2, MP2 )) ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\ + ;\ + PADDW ( MA1, MP1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\ + PSRLW ( CONST(7), MA1 ) /* t1 >> 15 */ ;\ + ;\ +TWO(PADDW ( MA2, MP2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\ +TWO(PSRLW ( CONST(7), MA2 )) /* t2 >> 15 */ ;\ + ;\ + PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) + (t1 >>15) ~= (t1/255) << 8 */ ;\ +TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) + (t2 >>15) ~= (t2/255) << 8 */ ;\ + ;\ + PADDW ( MQ1, MA1 ) /* (t1/255 + q1) << 8 */ ;\ +TWO(PADDW ( MQ2, MA2 )) /* (t2/255 + q2) << 8 */ ;\ + ;\ + PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\ +TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */ + + +/* common blending setup code + * + * note that M00 is a register with 0x0000000000000000 constant which can be easily obtained making + * + * PXOR ( M00, M00 ) + */ +#define GMB_LOAD(rgba, dest, MPP, MQQ) \ +ONE(MOVD ( REGIND(rgba), MPP )) /* | | | | qa1 | qb1 | qg1 | qr1 */ ;\ +ONE(MOVD ( REGIND(dest), MQQ )) /* | | | | pa1 | pb1 | pg1 | pr1 */ ;\ + ;\ +TWO(MOVQ ( REGIND(rgba), MPP )) /* qa2 | qb2 | qg2 | qr2 | qa1 | qb1 | qg1 | qr1 */ ;\ +TWO(MOVQ ( REGIND(dest), MQQ )) /* pa2 | pb2 | pg2 | pr2 | pa1 | pb1 | pg1 | pr1 */ + +#define GMB_UNPACK(MP1, MQ1, MP2, MQ2, M00) \ +TWO(MOVQ ( MP1, MP2 )) ;\ +TWO(MOVQ ( MQ1, MQ2 )) ;\ + ;\ + PUNPCKLBW ( M00, MQ1 ) /* qa1 | qb1 | qg1 | qr1 */ ;\ +TWO(PUNPCKHBW ( M00, MQ2 )) /* qa2 | qb2 | qg2 | qr2 */ ;\ + PUNPCKLBW ( M00, MP1 ) /* pa1 | pb1 | pg1 | pr1 */ ;\ +TWO(PUNPCKHBW ( M00, MP2 )) /* pa2 | pb2 | pg2 | pr2 */ + +#define GMB_ALPHA(MP1, MA1, MP2, MA2) \ + MOVQ ( MP1, MA1 ) ;\ +TWO(MOVQ ( MP2, MA2 )) ;\ + ;\ + PUNPCKHWD ( MA1, MA1 ) /* pa1 | pa1 | | */ ;\ +TWO(PUNPCKHWD ( MA2, MA2 )) /* pa2 | pa2 | | */ ;\ + PUNPCKHDQ ( MA1, MA1 ) /* pa1 | pa1 | pa1 | pa1 */ ;\ +TWO(PUNPCKHDQ ( MA2, MA2 )) /* pa2 | pa2 | pa2 | pa2 */ + +#define GMB_PACK( MS1, MS2 ) \ + PACKUSWB ( MS2, MS1 ) /* sa2 | sb2 | sg2 | sr2 | sa1 | sb1 | sg1 | sr1 */ ;\ + +#define GMB_STORE(rgba, MSS ) \ +ONE(MOVD ( MSS, REGIND(rgba) )) /* | | | | sa1 | sb1 | sg1 | sr1 */ ;\ +TWO(MOVQ ( MSS, REGIND(rgba) )) /* sa2 | sb2 | sg2 | sr2 | sa1 | sb1 | sg1 | sr1 */ + + + SEG_DATA + +ALIGNDATA8 +const_0080: + D_LONG 0x00800080, 0x00800080 + +const_80: + D_LONG 0x80808080, 0x80808080 + + SEG_TEXT + + +/* Blend transparency function + */ + +#define TAG(x) CONCAT(x,_transparency) +#define LLTAG(x) LLBL2(x,_transparency) + +#define INIT \ + PXOR ( MM0, MM0 ) /* 0x0000 | 0x0000 | 0x0000 | 0x0000 */ + +#define MAIN( rgba, dest ) \ + GMB_LOAD( rgba, dest, MM1, MM2 ) ;\ + GMB_UNPACK( MM1, MM2, MM4, MM5, MM0 ) ;\ + GMB_ALPHA( MM1, MM3, MM4, MM6 ) ;\ + GMB_LERP_GSC( MM1, MM2, MM3, MM4, MM5, MM6 ) ;\ + GMB_PACK( MM3, MM6 ) ;\ + GMB_STORE( rgba, MM3 ) + +#include "mmx_blendtmp.h" + + +/* Blend add function + * + * FIXME: Add some loop unrolling here... + */ + +#define TAG(x) CONCAT(x,_add) +#define LLTAG(x) LLBL2(x,_add) + +#define INIT + +#define MAIN( rgba, dest ) \ +ONE(MOVD ( REGIND(rgba), MM1 )) /* | | | | qa1 | qb1 | qg1 | qr1 */ ;\ +ONE(MOVD ( REGIND(dest), MM2 )) /* | | | | pa1 | pb1 | pg1 | pr1 */ ;\ +ONE(PADDUSB ( MM2, MM1 )) ;\ +ONE(MOVD ( MM1, REGIND(rgba) )) /* | | | | sa1 | sb1 | sg1 | sr1 */ ;\ + ;\ +TWO(MOVQ ( REGIND(rgba), MM1 )) /* qa2 | qb2 | qg2 | qr2 | qa1 | qb1 | qg1 | qr1 */ ;\ +TWO(PADDUSB ( REGIND(dest), MM1 )) /* sa2 | sb2 | sg2 | sr2 | sa1 | sb1 | sg1 | sr1 */ ;\ +TWO(MOVQ ( MM1, REGIND(rgba) )) + +#include "mmx_blendtmp.h" + + +/* Blend min function + */ + +#define TAG(x) CONCAT(x,_min) +#define LLTAG(x) LLBL2(x,_min) + +#define INIT \ + MOVQ ( CONTENT(const_80), MM7 ) /* 0x80| 0x80| 0x80| 0x80| 0x80| 0x80| 0x80| 0x80*/ + +#define MAIN( rgba, dest ) \ + GMB_LOAD( rgba, dest, MM1, MM2 ) ;\ + MOVQ ( MM1, MM3 ) ;\ + MOVQ ( MM2, MM4 ) ;\ + PXOR ( MM7, MM3 ) /* unsigned -> signed */ ;\ + PXOR ( MM7, MM4 ) /* unsigned -> signed */ ;\ + PCMPGTB ( MM3, MM4 ) /* q > p ? 0xff : 0x00 */ ;\ + PAND ( MM4, MM1 ) /* q > p ? p : 0 */ ;\ + PANDN ( MM2, MM4 ) /* q > p ? 0 : q */ ;\ + POR ( MM1, MM4 ) /* q > p ? p : q */ ;\ + GMB_STORE( rgba, MM4 ) + +#include "mmx_blendtmp.h" + + +/* Blend max function + */ + +#define TAG(x) CONCAT(x,_max) +#define LLTAG(x) LLBL2(x,_max) + +#define INIT \ + MOVQ ( CONTENT(const_80), MM7 ) /* 0x80| 0x80| 0x80| 0x80| 0x80| 0x80| 0x80| 0x80*/ + +#define MAIN( rgba, dest ) \ + GMB_LOAD( rgba, dest, MM1, MM2 ) ;\ + MOVQ ( MM1, MM3 ) ;\ + MOVQ ( MM2, MM4 ) ;\ + PXOR ( MM7, MM3 ) /* unsigned -> signed */ ;\ + PXOR ( MM7, MM4 ) /* unsigned -> signed */ ;\ + PCMPGTB ( MM3, MM4 ) /* q > p ? 0xff : 0x00 */ ;\ + PAND ( MM4, MM2 ) /* q > p ? q : 0 */ ;\ + PANDN ( MM1, MM4 ) /* q > p ? 0 : p */ ;\ + POR ( MM2, MM4 ) /* q > p ? p : q */ ;\ + GMB_STORE( rgba, MM4 ) + +#include "mmx_blendtmp.h" + + +/* Blend modulate function + */ + +#define TAG(x) CONCAT(x,_modulate) +#define LLTAG(x) LLBL2(x,_modulate) + +#define INIT \ + PXOR ( MM0, MM0 ) /* 0x0000 | 0x0000 | 0x0000 | 0x0000 */ ;\ + MOVQ ( CONTENT(const_0080), MM7 ) /* 0x0080 | 0x0080 | 0x0080 | 0x0080 */ + +#define MAIN( rgba, dest ) \ + GMB_LOAD( rgba, dest, MM1, MM2 ) ;\ + GMB_UNPACK( MM1, MM2, MM4, MM5, MM0 ) ;\ + GMB_MULT_GSR( MM1, MM2, MM4, MM5, MM7 ) ;\ + GMB_PACK( MM2, MM5 ) ;\ + GMB_STORE( rgba, MM2 ) + +#include "mmx_blendtmp.h" + +#endif |