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mmx2 bgr24 stuff from swscale (slightly faster) 

Originally committed as revision 2740 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2001-11-06 14:43:19 +00:00
parent 0155db7f6c
commit 761635727d
1 changed files with 53 additions and 2 deletions
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55
postproc/yuv2rgb_template.c
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@ -54,6 +54,11 @@ uint64_t __attribute__((aligned(8))) mmx_V_green = 0xe5fce5fce5fce5fc;
uint64_t __attribute__((aligned(8))) mmx_redmask = 0xf8f8f8f8f8f8f8f8;
uint64_t __attribute__((aligned(8))) mmx_grnmask = 0xfcfcfcfcfcfcfcfc;
uint64_t __attribute__((aligned(8))) M24A= 0x00FF0000FF0000FFLL;
uint64_t __attribute__((aligned(8))) M24B= 0xFF0000FF0000FF00LL;
uint64_t __attribute__((aligned(8))) M24C= 0x0000FF0000FF0000LL;
#define YUV2RGB \
/* Do the multiply part of the conversion for even and odd pixels,
register usage:
@ -336,8 +341,54 @@ static void yuv420_rgb24_mmx (uint8_t * image, uint8_t * py,
__asm__ __volatile__ (
YUV2RGB
/* mm0=B, %%mm2=G, %%mm1=R */
#ifdef HAVE_MMX2
"movq M24A, %%mm4 \n\t"
"movq M24C, %%mm7 \n\t"
"pshufw $0x50, %%mm0, %%mm5 \n\t" /* B3 B2 B3 B2 B1 B0 B1 B0 */
"pshufw $0x50, %%mm2, %%mm3 \n\t" /* G3 G2 G3 G2 G1 G0 G1 G0 */
"pshufw $0x00, %%mm1, %%mm6 \n\t" /* R1 R0 R1 R0 R1 R0 R1 R0 */
"pand %%mm4, %%mm5 \n\t" /* B2 B1 B0 */
"pand %%mm4, %%mm3 \n\t" /* G2 G1 G0 */
"pand %%mm7, %%mm6 \n\t" /* R1 R0 */
"psllq $8, %%mm3 \n\t" /* G2 G1 G0 */
"por %%mm5, %%mm6 \n\t"
"por %%mm3, %%mm6 \n\t"
MOVNTQ" %%mm6, (%3) \n\t"
"psrlq $8, %%mm2 \n\t" /* 00 G7 G6 G5 G4 G3 G2 G1 */
"pshufw $0xA5, %%mm0, %%mm5 \n\t" /* B5 B4 B5 B4 B3 B2 B3 B2 */
"pshufw $0x55, %%mm2, %%mm3 \n\t" /* G4 G3 G4 G3 G4 G3 G4 G3 */
"pshufw $0xA5, %%mm1, %%mm6 \n\t" /* R5 R4 R5 R4 R3 R2 R3 R2 */
"pand M24B, %%mm5 \n\t" /* B5 B4 B3 */
"pand %%mm7, %%mm3 \n\t" /* G4 G3 */
"pand %%mm4, %%mm6 \n\t" /* R4 R3 R2 */
"por %%mm5, %%mm3 \n\t" /* B5 G4 B4 G3 B3 */
"por %%mm3, %%mm6 \n\t"
MOVNTQ" %%mm6, 8(%3) \n\t"
"pshufw $0xFF, %%mm0, %%mm5 \n\t" /* B7 B6 B7 B6 B7 B6 B6 B7 */
"pshufw $0xFA, %%mm2, %%mm3 \n\t" /* 00 G7 00 G7 G6 G5 G6 G5 */
"pshufw $0xFA, %%mm1, %%mm6 \n\t" /* R7 R6 R7 R6 R5 R4 R5 R4 */
"movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
"pand %%mm7, %%mm5 \n\t" /* B7 B6 */
"pand %%mm4, %%mm3 \n\t" /* G7 G6 G5 */
"pand M24B, %%mm6 \n\t" /* R7 R6 R5 */
"movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
\
"por %%mm5, %%mm3 \n\t"
"por %%mm3, %%mm6 \n\t"
MOVNTQ" %%mm6, 16(%3) \n\t"
"movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
"pxor %%mm4, %%mm4 \n\t"
#else
"pxor %%mm4, %%mm4 \n\t"
"movq %%mm0, %%mm5 \n\t" /* B */
"movq %%mm1, %%mm6 \n\t" /* R */
@ -390,7 +441,7 @@ YUV2RGB
"movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
"pxor %%mm4, %%mm4 \n\t"
#endif
: : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));