| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../SDL_internal.h" |
| |
| #if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES |
| |
| #include "SDL_stdinc.h" |
| |
| #include "mmx.h" |
| |
| /* *INDENT-OFF* */ |
| |
| static mmx_t MMX_0080w = { .ud = {0x00800080, 0x00800080} }; |
| static mmx_t MMX_00FFw = { .ud = {0x00ff00ff, 0x00ff00ff} }; |
| static mmx_t MMX_FF00w = { .ud = {0xff00ff00, 0xff00ff00} }; |
| |
| static mmx_t MMX_Ycoeff = { .uw = {0x004a, 0x004a, 0x004a, 0x004a} }; |
| |
| static mmx_t MMX_UbluRGB = { .uw = {0x0072, 0x0072, 0x0072, 0x0072} }; |
| static mmx_t MMX_VredRGB = { .uw = {0x0059, 0x0059, 0x0059, 0x0059} }; |
| static mmx_t MMX_UgrnRGB = { .uw = {0xffea, 0xffea, 0xffea, 0xffea} }; |
| static mmx_t MMX_VgrnRGB = { .uw = {0xffd2, 0xffd2, 0xffd2, 0xffd2} }; |
| |
| static mmx_t MMX_Ublu5x5 = { .uw = {0x0081, 0x0081, 0x0081, 0x0081} }; |
| static mmx_t MMX_Vred5x5 = { .uw = {0x0066, 0x0066, 0x0066, 0x0066} }; |
| static mmx_t MMX_Ugrn565 = { .uw = {0xffe8, 0xffe8, 0xffe8, 0xffe8} }; |
| static mmx_t MMX_Vgrn565 = { .uw = {0xffcd, 0xffcd, 0xffcd, 0xffcd} }; |
| |
| static mmx_t MMX_red565 = { .uw = {0xf800, 0xf800, 0xf800, 0xf800} }; |
| static mmx_t MMX_grn565 = { .uw = {0x07e0, 0x07e0, 0x07e0, 0x07e0} }; |
| |
| /** |
| This MMX assembler is my first assembler/MMX program ever. |
| Thus it maybe buggy. |
| Send patches to: |
| mvogt@rhrk.uni-kl.de |
| |
| After it worked fine I have "obfuscated" the code a bit to have |
| more parallism in the MMX units. This means I moved |
| initilisation around and delayed other instruction. |
| Performance measurement did not show that this brought any advantage |
| but in theory it _should_ be faster this way. |
| |
| The overall performanve gain to the C based dither was 30%-40%. |
| The MMX routine calculates 256bit=8RGB values in each cycle |
| (4 for row1 & 4 for row2) |
| |
| The red/green/blue.. coefficents are taken from the mpeg_play |
| player. They look nice, but I dont know if you can have |
| better values, to avoid integer rounding errors. |
| |
| |
| IMPORTANT: |
| ========== |
| |
| It is a requirement that the cr/cb/lum are 8 byte aligned and |
| the out are 16byte aligned or you will/may get segfaults |
| |
| */ |
| |
| void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, |
| unsigned char *lum, unsigned char *cr, |
| unsigned char *cb, unsigned char *out, |
| int rows, int cols, int mod ) |
| { |
| Uint32 *row1; |
| Uint32 *row2; |
| |
| unsigned char* y = lum +cols*rows; /* Pointer to the end */ |
| int x = 0; |
| row1 = (Uint32 *)out; /* 32 bit target */ |
| row2 = (Uint32 *)out+cols+mod; /* start of second row */ |
| mod = (mod+cols+mod)*4; /* increment for row1 in byte */ |
| |
| __asm__ __volatile__ ( |
| /* tap dance to workaround the inability to use %%ebx at will... */ |
| /* move one thing to the stack... */ |
| "pushl $0\n" /* save a slot on the stack. */ |
| "pushl %%ebx\n" /* save %%ebx. */ |
| "movl %0, %%ebx\n" /* put the thing in ebx. */ |
| "movl %%ebx,4(%%esp)\n" /* put the thing in the stack slot. */ |
| "popl %%ebx\n" /* get back %%ebx (the PIC register). */ |
| |
| ".align 8\n" |
| "1:\n" |
| |
| /* create Cr (result in mm1) */ |
| "pushl %%ebx\n" |
| "movl 4(%%esp),%%ebx\n" |
| "movd (%%ebx),%%mm1\n" /* 0 0 0 0 v3 v2 v1 v0 */ |
| "popl %%ebx\n" |
| "pxor %%mm7,%%mm7\n" /* 00 00 00 00 00 00 00 00 */ |
| "movd (%2), %%mm2\n" /* 0 0 0 0 l3 l2 l1 l0 */ |
| "punpcklbw %%mm7,%%mm1\n" /* 0 v3 0 v2 00 v1 00 v0 */ |
| "punpckldq %%mm1,%%mm1\n" /* 00 v1 00 v0 00 v1 00 v0 */ |
| "psubw %9,%%mm1\n" /* mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 */ |
| |
| /* create Cr_g (result in mm0) */ |
| "movq %%mm1,%%mm0\n" /* r1 r1 r0 r0 r1 r1 r0 r0 */ |
| "pmullw %10,%%mm0\n" /* red*-46dec=0.7136*64 */ |
| "pmullw %11,%%mm1\n" /* red*89dec=1.4013*64 */ |
| "psraw $6, %%mm0\n" /* red=red/64 */ |
| "psraw $6, %%mm1\n" /* red=red/64 */ |
| |
| /* create L1 L2 (result in mm2,mm4) */ |
| /* L2=lum+cols */ |
| "movq (%2,%4),%%mm3\n" /* 0 0 0 0 L3 L2 L1 L0 */ |
| "punpckldq %%mm3,%%mm2\n" /* L3 L2 L1 L0 l3 l2 l1 l0 */ |
| "movq %%mm2,%%mm4\n" /* L3 L2 L1 L0 l3 l2 l1 l0 */ |
| "pand %12,%%mm2\n" /* L3 0 L1 0 l3 0 l1 0 */ |
| "pand %13,%%mm4\n" /* 0 L2 0 L0 0 l2 0 l0 */ |
| "psrlw $8,%%mm2\n" /* 0 L3 0 L1 0 l3 0 l1 */ |
| |
| /* create R (result in mm6) */ |
| "movq %%mm2,%%mm5\n" /* 0 L3 0 L1 0 l3 0 l1 */ |
| "movq %%mm4,%%mm6\n" /* 0 L2 0 L0 0 l2 0 l0 */ |
| "paddsw %%mm1, %%mm5\n" /* lum1+red:x R3 x R1 x r3 x r1 */ |
| "paddsw %%mm1, %%mm6\n" /* lum1+red:x R2 x R0 x r2 x r0 */ |
| "packuswb %%mm5,%%mm5\n" /* R3 R1 r3 r1 R3 R1 r3 r1 */ |
| "packuswb %%mm6,%%mm6\n" /* R2 R0 r2 r0 R2 R0 r2 r0 */ |
| "pxor %%mm7,%%mm7\n" /* 00 00 00 00 00 00 00 00 */ |
| "punpcklbw %%mm5,%%mm6\n" /* R3 R2 R1 R0 r3 r2 r1 r0 */ |
| |
| /* create Cb (result in mm1) */ |
| "movd (%1), %%mm1\n" /* 0 0 0 0 u3 u2 u1 u0 */ |
| "punpcklbw %%mm7,%%mm1\n" /* 0 u3 0 u2 00 u1 00 u0 */ |
| "punpckldq %%mm1,%%mm1\n" /* 00 u1 00 u0 00 u1 00 u0 */ |
| "psubw %9,%%mm1\n" /* mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 */ |
| |
| /* create Cb_g (result in mm5) */ |
| "movq %%mm1,%%mm5\n" /* u1 u1 u0 u0 u1 u1 u0 u0 */ |
| "pmullw %14,%%mm5\n" /* blue*-109dec=1.7129*64 */ |
| "pmullw %15,%%mm1\n" /* blue*114dec=1.78125*64 */ |
| "psraw $6, %%mm5\n" /* blue=red/64 */ |
| "psraw $6, %%mm1\n" /* blue=blue/64 */ |
| |
| /* create G (result in mm7) */ |
| "movq %%mm2,%%mm3\n" /* 0 L3 0 L1 0 l3 0 l1 */ |
| "movq %%mm4,%%mm7\n" /* 0 L2 0 L0 0 l2 0 l1 */ |
| "paddsw %%mm5, %%mm3\n" /* lum1+Cb_g:x G3t x G1t x g3t x g1t */ |
| "paddsw %%mm5, %%mm7\n" /* lum1+Cb_g:x G2t x G0t x g2t x g0t */ |
| "paddsw %%mm0, %%mm3\n" /* lum1+Cr_g:x G3 x G1 x g3 x g1 */ |
| "paddsw %%mm0, %%mm7\n" /* lum1+blue:x G2 x G0 x g2 x g0 */ |
| "packuswb %%mm3,%%mm3\n" /* G3 G1 g3 g1 G3 G1 g3 g1 */ |
| "packuswb %%mm7,%%mm7\n" /* G2 G0 g2 g0 G2 G0 g2 g0 */ |
| "punpcklbw %%mm3,%%mm7\n" /* G3 G2 G1 G0 g3 g2 g1 g0 */ |
| |
| /* create B (result in mm5) */ |
| "movq %%mm2,%%mm3\n" /* 0 L3 0 L1 0 l3 0 l1 */ |
| "movq %%mm4,%%mm5\n" /* 0 L2 0 L0 0 l2 0 l1 */ |
| "paddsw %%mm1, %%mm3\n" /* lum1+blue:x B3 x B1 x b3 x b1 */ |
| "paddsw %%mm1, %%mm5\n" /* lum1+blue:x B2 x B0 x b2 x b0 */ |
| "packuswb %%mm3,%%mm3\n" /* B3 B1 b3 b1 B3 B1 b3 b1 */ |
| "packuswb %%mm5,%%mm5\n" /* B2 B0 b2 b0 B2 B0 b2 b0 */ |
| "punpcklbw %%mm3,%%mm5\n" /* B3 B2 B1 B0 b3 b2 b1 b0 */ |
| |
| /* fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) */ |
| |
| "pxor %%mm2,%%mm2\n" /* 0 0 0 0 0 0 0 0 */ |
| "pxor %%mm4,%%mm4\n" /* 0 0 0 0 0 0 0 0 */ |
| "movq %%mm6,%%mm1\n" /* R3 R2 R1 R0 r3 r2 r1 r0 */ |
| "movq %%mm5,%%mm3\n" /* B3 B2 B1 B0 b3 b2 b1 b0 */ |
| |
| /* process lower lum */ |
| "punpcklbw %%mm4,%%mm1\n" /* 0 r3 0 r2 0 r1 0 r0 */ |
| "punpcklbw %%mm4,%%mm3\n" /* 0 b3 0 b2 0 b1 0 b0 */ |
| "movq %%mm1,%%mm2\n" /* 0 r3 0 r2 0 r1 0 r0 */ |
| "movq %%mm3,%%mm0\n" /* 0 b3 0 b2 0 b1 0 b0 */ |
| "punpcklwd %%mm1,%%mm3\n" /* 0 r1 0 b1 0 r0 0 b0 */ |
| "punpckhwd %%mm2,%%mm0\n" /* 0 r3 0 b3 0 r2 0 b2 */ |
| |
| "pxor %%mm2,%%mm2\n" /* 0 0 0 0 0 0 0 0 */ |
| "movq %%mm7,%%mm1\n" /* G3 G2 G1 G0 g3 g2 g1 g0 */ |
| "punpcklbw %%mm1,%%mm2\n" /* g3 0 g2 0 g1 0 g0 0 */ |
| "punpcklwd %%mm4,%%mm2\n" /* 0 0 g1 0 0 0 g0 0 */ |
| "por %%mm3, %%mm2\n" /* 0 r1 g1 b1 0 r0 g0 b0 */ |
| "movq %%mm2,(%3)\n" /* wrote out ! row1 */ |
| |
| "pxor %%mm2,%%mm2\n" /* 0 0 0 0 0 0 0 0 */ |
| "punpcklbw %%mm1,%%mm4\n" /* g3 0 g2 0 g1 0 g0 0 */ |
| "punpckhwd %%mm2,%%mm4\n" /* 0 0 g3 0 0 0 g2 0 */ |
| "por %%mm0, %%mm4\n" /* 0 r3 g3 b3 0 r2 g2 b2 */ |
| "movq %%mm4,8(%3)\n" /* wrote out ! row1 */ |
| |
| /* fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) */ |
| /* this can be done "destructive" */ |
| "pxor %%mm2,%%mm2\n" /* 0 0 0 0 0 0 0 0 */ |
| "punpckhbw %%mm2,%%mm6\n" /* 0 R3 0 R2 0 R1 0 R0 */ |
| "punpckhbw %%mm1,%%mm5\n" /* G3 B3 G2 B2 G1 B1 G0 B0 */ |
| "movq %%mm5,%%mm1\n" /* G3 B3 G2 B2 G1 B1 G0 B0 */ |
| "punpcklwd %%mm6,%%mm1\n" /* 0 R1 G1 B1 0 R0 G0 B0 */ |
| "movq %%mm1,(%5)\n" /* wrote out ! row2 */ |
| "punpckhwd %%mm6,%%mm5\n" /* 0 R3 G3 B3 0 R2 G2 B2 */ |
| "movq %%mm5,8(%5)\n" /* wrote out ! row2 */ |
| |
| "addl $4,%2\n" /* lum+4 */ |
| "leal 16(%3),%3\n" /* row1+16 */ |
| "leal 16(%5),%5\n" /* row2+16 */ |
| "addl $2,(%%esp)\n" /* cr+2 */ |
| "addl $2,%1\n" /* cb+2 */ |
| |
| "addl $4,%6\n" /* x+4 */ |
| "cmpl %4,%6\n" |
| |
| "jl 1b\n" |
| "addl %4,%2\n" /* lum += cols */ |
| "addl %8,%3\n" /* row1+= mod */ |
| "addl %8,%5\n" /* row2+= mod */ |
| "movl $0,%6\n" /* x=0 */ |
| "cmpl %7,%2\n" |
| "jl 1b\n" |
| |
| "addl $4,%%esp\n" /* get rid of the stack slot we reserved. */ |
| "emms\n" /* reset MMX registers. */ |
| : |
| : "m" (cr), "r"(cb),"r"(lum), |
| "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), |
| "m"(MMX_0080w),"m"(MMX_VgrnRGB),"m"(MMX_VredRGB), |
| "m"(MMX_FF00w),"m"(MMX_00FFw),"m"(MMX_UgrnRGB), |
| "m"(MMX_UbluRGB) |
| ); |
| } |
| |
| void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, |
| unsigned char *lum, unsigned char *cr, |
| unsigned char *cb, unsigned char *out, |
| int rows, int cols, int mod ) |
| { |
| Uint16 *row1; |
| Uint16 *row2; |
| |
| unsigned char* y = lum +cols*rows; /* Pointer to the end */ |
| int x = 0; |
| row1 = (Uint16 *)out; /* 16 bit target */ |
| row2 = (Uint16 *)out+cols+mod; /* start of second row */ |
| mod = (mod+cols+mod)*2; /* increment for row1 in byte */ |
| |
| __asm__ __volatile__( |
| /* tap dance to workaround the inability to use %%ebx at will... */ |
| /* move one thing to the stack... */ |
| "pushl $0\n" /* save a slot on the stack. */ |
| "pushl %%ebx\n" /* save %%ebx. */ |
| "movl %0, %%ebx\n" /* put the thing in ebx. */ |
| "movl %%ebx, 4(%%esp)\n" /* put the thing in the stack slot. */ |
| "popl %%ebx\n" /* get back %%ebx (the PIC register). */ |
| |
| ".align 8\n" |
| "1:\n" |
| |
| "movd (%1), %%mm0\n" /* 4 Cb 0 0 0 0 u3 u2 u1 u0 */ |
| "pxor %%mm7, %%mm7\n" |
| "pushl %%ebx\n" |
| "movl 4(%%esp), %%ebx\n" |
| "movd (%%ebx), %%mm1\n" /* 4 Cr 0 0 0 0 v3 v2 v1 v0 */ |
| "popl %%ebx\n" |
| |
| "punpcklbw %%mm7, %%mm0\n" /* 4 W cb 0 u3 0 u2 0 u1 0 u0 */ |
| "punpcklbw %%mm7, %%mm1\n" /* 4 W cr 0 v3 0 v2 0 v1 0 v0 */ |
| "psubw %9, %%mm0\n" |
| "psubw %9, %%mm1\n" |
| "movq %%mm0, %%mm2\n" /* Cb 0 u3 0 u2 0 u1 0 u0 */ |
| "movq %%mm1, %%mm3\n" /* Cr */ |
| "pmullw %10, %%mm2\n" /* Cb2green 0 R3 0 R2 0 R1 0 R0 */ |
| "movq (%2), %%mm6\n" /* L1 l7 L6 L5 L4 L3 L2 L1 L0 */ |
| "pmullw %11, %%mm0\n" /* Cb2blue */ |
| "pand %12, %%mm6\n" /* L1 00 L6 00 L4 00 L2 00 L0 */ |
| "pmullw %13, %%mm3\n" /* Cr2green */ |
| "movq (%2), %%mm7\n" /* L2 */ |
| "pmullw %14, %%mm1\n" /* Cr2red */ |
| "psrlw $8, %%mm7\n" /* L2 00 L7 00 L5 00 L3 00 L1 */ |
| "pmullw %15, %%mm6\n" /* lum1 */ |
| "paddw %%mm3, %%mm2\n" /* Cb2green + Cr2green == green */ |
| "pmullw %15, %%mm7\n" /* lum2 */ |
| |
| "movq %%mm6, %%mm4\n" /* lum1 */ |
| "paddw %%mm0, %%mm6\n" /* lum1 +blue 00 B6 00 B4 00 B2 00 B0 */ |
| "movq %%mm4, %%mm5\n" /* lum1 */ |
| "paddw %%mm1, %%mm4\n" /* lum1 +red 00 R6 00 R4 00 R2 00 R0 */ |
| "paddw %%mm2, %%mm5\n" /* lum1 +green 00 G6 00 G4 00 G2 00 G0 */ |
| "psraw $6, %%mm4\n" /* R1 0 .. 64 */ |
| "movq %%mm7, %%mm3\n" /* lum2 00 L7 00 L5 00 L3 00 L1 */ |
| "psraw $6, %%mm5\n" /* G1 - .. + */ |
| "paddw %%mm0, %%mm7\n" /* Lum2 +blue 00 B7 00 B5 00 B3 00 B1 */ |
| "psraw $6, %%mm6\n" /* B1 0 .. 64 */ |
| "packuswb %%mm4, %%mm4\n" /* R1 R1 */ |
| "packuswb %%mm5, %%mm5\n" /* G1 G1 */ |
| "packuswb %%mm6, %%mm6\n" /* B1 B1 */ |
| "punpcklbw %%mm4, %%mm4\n" |
| "punpcklbw %%mm5, %%mm5\n" |
| |
| "pand %16, %%mm4\n" |
| "psllw $3, %%mm5\n" /* GREEN 1 */ |
| "punpcklbw %%mm6, %%mm6\n" |
| "pand %17, %%mm5\n" |
| "pand %16, %%mm6\n" |
| "por %%mm5, %%mm4\n" /* */ |
| "psrlw $11, %%mm6\n" /* BLUE 1 */ |
| "movq %%mm3, %%mm5\n" /* lum2 */ |
| "paddw %%mm1, %%mm3\n" /* lum2 +red 00 R7 00 R5 00 R3 00 R1 */ |
| "paddw %%mm2, %%mm5\n" /* lum2 +green 00 G7 00 G5 00 G3 00 G1 */ |
| "psraw $6, %%mm3\n" /* R2 */ |
| "por %%mm6, %%mm4\n" /* MM4 */ |
| "psraw $6, %%mm5\n" /* G2 */ |
| "movq (%2, %4), %%mm6\n" /* L3 load lum2 */ |
| "psraw $6, %%mm7\n" |
| "packuswb %%mm3, %%mm3\n" |
| "packuswb %%mm5, %%mm5\n" |
| "packuswb %%mm7, %%mm7\n" |
| "pand %12, %%mm6\n" /* L3 */ |
| "punpcklbw %%mm3, %%mm3\n" |
| "punpcklbw %%mm5, %%mm5\n" |
| "pmullw %15, %%mm6\n" /* lum3 */ |
| "punpcklbw %%mm7, %%mm7\n" |
| "psllw $3, %%mm5\n" /* GREEN 2 */ |
| "pand %16, %%mm7\n" |
| "pand %16, %%mm3\n" |
| "psrlw $11, %%mm7\n" /* BLUE 2 */ |
| "pand %17, %%mm5\n" |
| "por %%mm7, %%mm3\n" |
| "movq (%2,%4), %%mm7\n" /* L4 load lum2 */ |
| "por %%mm5, %%mm3\n" |
| "psrlw $8, %%mm7\n" /* L4 */ |
| "movq %%mm4, %%mm5\n" |
| "punpcklwd %%mm3, %%mm4\n" |
| "pmullw %15, %%mm7\n" /* lum4 */ |
| "punpckhwd %%mm3, %%mm5\n" |
| |
| "movq %%mm4, (%3)\n" /* write row1 */ |
| "movq %%mm5, 8(%3)\n" /* write row1 */ |
| |
| "movq %%mm6, %%mm4\n" /* Lum3 */ |
| "paddw %%mm0, %%mm6\n" /* Lum3 +blue */ |
| |
| "movq %%mm4, %%mm5\n" /* Lum3 */ |
| "paddw %%mm1, %%mm4\n" /* Lum3 +red */ |
| "paddw %%mm2, %%mm5\n" /* Lum3 +green */ |
| "psraw $6, %%mm4\n" |
| "movq %%mm7, %%mm3\n" /* Lum4 */ |
| "psraw $6, %%mm5\n" |
| "paddw %%mm0, %%mm7\n" /* Lum4 +blue */ |
| "psraw $6, %%mm6\n" /* Lum3 +blue */ |
| "movq %%mm3, %%mm0\n" /* Lum4 */ |
| "packuswb %%mm4, %%mm4\n" |
| "paddw %%mm1, %%mm3\n" /* Lum4 +red */ |
| "packuswb %%mm5, %%mm5\n" |
| "paddw %%mm2, %%mm0\n" /* Lum4 +green */ |
| "packuswb %%mm6, %%mm6\n" |
| "punpcklbw %%mm4, %%mm4\n" |
| "punpcklbw %%mm5, %%mm5\n" |
| "punpcklbw %%mm6, %%mm6\n" |
| "psllw $3, %%mm5\n" /* GREEN 3 */ |
| "pand %16, %%mm4\n" |
| "psraw $6, %%mm3\n" /* psr 6 */ |
| "psraw $6, %%mm0\n" |
| "pand %16, %%mm6\n" /* BLUE */ |
| "pand %17, %%mm5\n" |
| "psrlw $11, %%mm6\n" /* BLUE 3 */ |
| "por %%mm5, %%mm4\n" |
| "psraw $6, %%mm7\n" |
| "por %%mm6, %%mm4\n" |
| "packuswb %%mm3, %%mm3\n" |
| "packuswb %%mm0, %%mm0\n" |
| "packuswb %%mm7, %%mm7\n" |
| "punpcklbw %%mm3, %%mm3\n" |
| "punpcklbw %%mm0, %%mm0\n" |
| "punpcklbw %%mm7, %%mm7\n" |
| "pand %16, %%mm3\n" |
| "pand %16, %%mm7\n" /* BLUE */ |
| "psllw $3, %%mm0\n" /* GREEN 4 */ |
| "psrlw $11, %%mm7\n" |
| "pand %17, %%mm0\n" |
| "por %%mm7, %%mm3\n" |
| "por %%mm0, %%mm3\n" |
| |
| "movq %%mm4, %%mm5\n" |
| |
| "punpcklwd %%mm3, %%mm4\n" |
| "punpckhwd %%mm3, %%mm5\n" |
| |
| "movq %%mm4, (%5)\n" |
| "movq %%mm5, 8(%5)\n" |
| |
| "addl $8, %6\n" |
| "addl $8, %2\n" |
| "addl $4, (%%esp)\n" |
| "addl $4, %1\n" |
| "cmpl %4, %6\n" |
| "leal 16(%3), %3\n" |
| "leal 16(%5),%5\n" /* row2+16 */ |
| |
| "jl 1b\n" |
| "addl %4, %2\n" /* lum += cols */ |
| "addl %8, %3\n" /* row1+= mod */ |
| "addl %8, %5\n" /* row2+= mod */ |
| "movl $0, %6\n" /* x=0 */ |
| "cmpl %7, %2\n" |
| "jl 1b\n" |
| "addl $4, %%esp\n" /* get rid of the stack slot we reserved. */ |
| "emms\n" |
| : |
| : "m" (cr), "r"(cb),"r"(lum), |
| "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), |
| "m"(MMX_0080w),"m"(MMX_Ugrn565),"m"(MMX_Ublu5x5), |
| "m"(MMX_00FFw),"m"(MMX_Vgrn565),"m"(MMX_Vred5x5), |
| "m"(MMX_Ycoeff),"m"(MMX_red565),"m"(MMX_grn565) |
| ); |
| } |
| |
| /* *INDENT-ON* */ |
| |
| #endif /* GCC3 i386 inline assembly */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
