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authorMichael Niedermayer <michaelni@gmx.at>2002-04-13 00:48:21 +0000
committerMichael Niedermayer <michaelni@gmx.at>2002-04-13 00:48:21 +0000
commit74d3583521de27a6c6018a647362a1974f3e2b58 (patch)
tree10d730dddd5a5ce7e01542ed83fa42c7448b556f /postproc/rgb2rgb_template.c
parent096172d435b8c1a8136fbc57845515b900f26bc0 (diff)
downloadffmpeg-74d3583521de27a6c6018a647362a1974f3e2b58.tar.gz
rgb24->bgr24
Originally committed as revision 5583 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
Diffstat (limited to 'postproc/rgb2rgb_template.c')
-rw-r--r--postproc/rgb2rgb_template.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/postproc/rgb2rgb_template.c b/postproc/rgb2rgb_template.c
index 46f36d88b9..87493ebc1c 100644
--- a/postproc/rgb2rgb_template.c
+++ b/postproc/rgb2rgb_template.c
@@ -571,6 +571,73 @@ static inline void RENAME(rgb32tobgr32)(const uint8_t *src, uint8_t *dst, unsign
#endif
}
+static inline void RENAME(rgb24tobgr24)(const uint8_t *src, uint8_t *dst, unsigned int src_size)
+{
+ int i;
+#ifdef HAVE_MMX
+ int mmx_size= 23 - src_size;
+ asm volatile (
+ "movq "MANGLE(mask24r)", %%mm5 \n\t"
+ "movq "MANGLE(mask24g)", %%mm6 \n\t"
+ "movq "MANGLE(mask24b)", %%mm7 \n\t"
+ ".balign 16 \n\t"
+ "1: \n\t"
+ PREFETCH" 32(%1, %%eax) \n\t"
+ "movq (%1, %%eax), %%mm0 \n\t" // BGR BGR BG
+ "movq (%1, %%eax), %%mm1 \n\t" // BGR BGR BG
+ "movq 2(%1, %%eax), %%mm2 \n\t" // R BGR BGR B
+ "psllq $16, %%mm0 \n\t" // 00 BGR BGR
+ "pand %%mm5, %%mm0 \n\t"
+ "pand %%mm6, %%mm1 \n\t"
+ "pand %%mm7, %%mm2 \n\t"
+ "por %%mm0, %%mm1 \n\t"
+ "por %%mm2, %%mm1 \n\t"
+ "movq 6(%1, %%eax), %%mm0 \n\t" // BGR BGR BG
+ MOVNTQ" %%mm1, (%2, %%eax) \n\t" // RGB RGB RG
+ "movq 8(%1, %%eax), %%mm1 \n\t" // R BGR BGR B
+ "movq 10(%1, %%eax), %%mm2 \n\t" // GR BGR BGR
+ "pand %%mm7, %%mm0 \n\t"
+ "pand %%mm5, %%mm1 \n\t"
+ "pand %%mm6, %%mm2 \n\t"
+ "por %%mm0, %%mm1 \n\t"
+ "por %%mm2, %%mm1 \n\t"
+ "movq 14(%1, %%eax), %%mm0 \n\t" // R BGR BGR B
+ MOVNTQ" %%mm1, 8(%2, %%eax) \n\t" // B RGB RGB R
+ "movq 16(%1, %%eax), %%mm1 \n\t" // GR BGR BGR
+ "movq 18(%1, %%eax), %%mm2 \n\t" // BGR BGR BG
+ "pand %%mm6, %%mm0 \n\t"
+ "pand %%mm7, %%mm1 \n\t"
+ "pand %%mm5, %%mm2 \n\t"
+ "por %%mm0, %%mm1 \n\t"
+ "por %%mm2, %%mm1 \n\t"
+ MOVNTQ" %%mm1, 16(%2, %%eax) \n\t"
+ "addl $24, %%eax \n\t"
+ " js 1b \n\t"
+ : "+a" (mmx_size)
+ : "r" (src-mmx_size), "r"(dst-mmx_size)
+ );
+
+ __asm __volatile(SFENCE:::"memory");
+ __asm __volatile(EMMS:::"memory");
+
+ if(!mmx_size) return; //finihsed, was multiple of 8
+
+ src+= src_size;
+ dst+= src_size;
+ src_size= 24-mmx_size;
+ src-= src_size;
+ dst-= src_size;
+#endif
+ for(i=0; i<src_size; i+=3)
+ {
+ register int x;
+ x = src[i + 2];
+ dst[i + 1] = src[i + 1];
+ dst[i + 2] = src[i + 0];
+ dst[i + 0] = x;
+ }
+}
+
/**
*
* height should be a multiple of 2 and width should be a multiple of 16 (if this is a