Mercurial > sdl-ios-xcode
view src/video/SDL_yuv_mmx.c @ 4167:a6f635e5eaa6 SDL-1.2
Fixed bug #611
From Tim Angus 2008-08-12 11:18:06
I'm one of the maintainers of ioquake3.org, an updated version of the
Quake 3 engine. Relatively recently, we moved ioq3 to use SDL as a
replacement for 95% of the platform specific code that was there. On the
whole it's doing a great job but unfortunately since the move we've been
getting complaints about the quality of the mouse input on the Windows
platform to the point where for many the game is unplayable. Put in
other terms, the current stable SDL 1.2 is basically not fit for purpose
if you need high quality mouse input as you do in a first person shooter.
Over the weekend I decided to pull my finger out and actually figure out
what's going on. There are basically two major problems. Firstly, when
using the "windib" driver, mouse input is gathered via the WM_MOUSEMOVE
message. Googling for this indicates that often this is known to result
in "spurious" and/or "missing" mouse movement events; this is the
primary cause of the poor mouse input. The second problem is that the
"directx" driver does not work at all in combination with OpenGL meaning
that you can't use DirectInput if your application also uses OpenGL. In
other words you're locked into using the "windib" driver and its poor
mouse input.
In order to address these problems I've done the following:
* Remove WM_MOUSEMOVE based motion event generation and replace with
calls to GetCursorPos which seems much more reliable. In order to
achieve this I've moved mouse motion out into a separate function that
is called once per DIB_PumpEvents.
* Remove the restriction on the "directx" driver being inoperable in
combination with OpenGL. There is a bug for this issues that I've
hijacked to a certain extent
(http://bugzilla.libsdl.org/show_bug.cgi?id=265). I'm the first to admit
I don't really understand why this restriction is there in the first
place. The commit message for the bug fix that introduced this
restriction (r581) isn't very elaborate and I couldn't see any other bug
tracking the issue. If anyone has more information on the bug that was
avoided by r581 it would be helpful as I/someone could then look into
addressing the problem without disabling the "directx" driver.
* I've also removed the restriction on not being allowed to use
DirectInput in windowed mode. I couldn't see any reason for this, at
least not from our perspective. I have my suspicions that it'll be
something like matching up the cursor with the mouse coordinates...
* I bumped up the DirectInput API used to version 7 in order to get
access to mouse buttons 4-7. I've had to inject a little bit of the DX7
headers into SDL there as the MinGW ones aren't up to date in this respect.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 02 Apr 2009 04:43:36 +0000 |
| parents | a1b03ba2fcd0 |
| children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.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 */