| Independent JPEG Group's JPEG software release 6b |
| with x86 SIMD extension for IJG JPEG library version 1.02 |
| == INTERNAL == |
| ----------------------------------------------------------- |
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| ¡û UPSAMPLE_H1V2_SUPPORTED |
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| GLOBAL(unsigned int) |
| jpeg_simd_os_support (unsigned int simd) |
| { |
| return simd; |
| } |
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| ¢£¥¢¥»¥ó¥Ö¥ê¸À¸ìÍÑÀßÄê¥Õ¥¡¥¤¥ë jsimdcfg.inc ¤ÎºîÀ® (makecfg.c) |
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| jpeg_simd_mask() ¤ò»È¤¦¤È¡¢ÆÃÄê¤Î SIMD Ì¿Îá¤ò¼Â¹Ô»þ¤Ë»ÈÍѤ·¤Ê¤¤¤è¤¦¤Ë |
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| GLOBAL(unsigned) |
| jpeg_simd_mask (j_common_ptr cinfo, unsigned remove, unsigned add); |
| |
| ¤³¤Î´Ø¿ô¤Ï¡¢³Æ SIMD Ì¿Î᥻¥Ã¥È¤ËÂбþ¤¹¤ë¥Þ¥¹¥¯¥Ó¥Ã¥È¤òÀßÄꡦÊѹ¹¤·¤Þ¤¹¡£ |
| remove, add ¤½¤·¤ÆÌá¤êÃͤϡ¢³Æ SIMD Ì¿Îá¤ËÂбþ¤¹¤ë¥Ó¥Ã¥ÈÃÍ (JSIMD_MMX, |
| JSIMD_3DNOW, JSIMD_SSE, JSIMD_SSE2) ¤ò OR ±é»»¤ÇÁȤ߹ç¤ï¤»¤¿¤â¤Î¤Ç¤¹¡£ |
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| "¥Þ¥¹¥¯¥Ó¥Ã¥È" ¤Ï¡¢¹½Â¤ÂÎ cinfo ¤ËÊÝ»ý¤µ¤ì¤ëÃͤǡ¢¤½¤Î½é´üÃÍ¤Ï 0 ¤Ç¤¹¡£ |
| ¤½¤·¤Æ¤³¤Î´Ø¿ô¤Ï¡¢¤³¤Î¥Þ¥¹¥¯¥Ó¥Ã¥È¤ò°Ê²¼¤Î¤è¤¦¤Ë¹¹¿·(Áàºî)¤·¤Þ¤¹¡£ |
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| (¿·¤·¤¤¥Þ¥¹¥¯¥Ó¥Ã¥È) = ((¸Å¤¤¥Þ¥¹¥¯¥Ó¥Ã¥È) & ~remove) | add; |
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| ¤½¤·¤Æ¡¢¤³¤Î¥Þ¥¹¥¯¥Ó¥Ã¥È¤¬ 1 ¤Ë¤µ¤ì¤¿ SIMD Ì¿Î᥻¥Ã¥È¤Ï¡¢¤¿¤È¤¨ CPU/OS |
| ¤ÇÂбþ¤·¤Æ¤¤¤Æ¤â»ÈÍѤµ¤ì¤Þ¤»¤ó¡£¤³¤Î´Ø¿ô¤Ï¡¢¤³¤Î´Ø¿ô¤ò¸Æ¤ÖľÁ°¤Þ¤ÇÀßÄê |
| ¤µ¤ì¤Æ¤¤¤¿¥Þ¥¹¥¯¥Ó¥Ã¥È¤òÊÖ¤·¤Þ¤¹¡£¤Ê¤Î¤Ç¡¢remove, add ¶¦¤Ë 0 ¤òÍ¿¤¨¤Æ |
| ´Ø¿ô¤ò¸Æ¤Ù¤Ð¡¢¸½ºßÀßÄꤵ¤ì¤Æ¤¤¤ë¥Þ¥¹¥¯¥Ó¥Ã¥È¤ò¼èÆÀ¤Ç¤¤Þ¤¹¡£¤³¤Î´Ø¿ô¤Î |
| »ÈÍÑÎã¤Ï¡¢cjpeg.c, djpeg.c, jcomapi.c ¤Ë¤¢¤ê¤Þ¤¹¡£ |
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| ¤³¤Î¥Þ¥¹¥¯¥Ó¥Ã¥È¤ÎÃͤϡ¢¼ÂºÝ¤Ë¤Ï¹½Â¤ÂÎ cinfo ¤Î output_gamma ¤â¤·¤¯¤Ï |
| input_gamma ÊÑ¿ô¤Î²¼°Ì¥Ó¥Ã¥È¤ÎÊݸ¤µ¤ì¤Æ¤¤¤Þ¤¹(¾Ü¤·¤¯¤Ï jcomapi.c ¤ò |
| »²¾È)¡£¤³¤ì¤Ï¡¢¹½Â¤ÂÎ cinfo ¤Ë¿·¤¿¤ÊÊÑ¿ô¤òÄɲ䷤Ƥ·¤Þ¤¦¤È¥Ð¥¤¥Ê¥ê¸ß´¹ |
| ¤¬Êø¤ì¤Æ¤·¤Þ¤¦¤¿¤á¤Ç¡¢¸½¾õ¤Ç¤Ï̤»ÈÍѤȻפï¤ì¤ë¾åµ¤ÎÊÑ¿ô¤ò¡Ö´Ö¼Ú¤ê¡× |
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| jpeg_simd_color_converter(); -> ¿§¶õ´ÖÊÑ´¹(RGB->YCbCr) |
| jpeg_simd_downsampler(); -> ¥À¥¦¥ó¥µ¥ó¥×¥ê¥ó¥° |
| jpeg_simd_forward_dct(); -> DCT½çÊÑ´¹ |
| jpeg_simd_color_deconverter(); -> ¿§¶õ´ÖÊÑ´¹(YCbCr->RGB) |
| jpeg_simd_upsampler(); -> ¥¢¥Ã¥×¥µ¥ó¥×¥ê¥ó¥° |
| jpeg_simd_inverse_dct(); -> DCTµÕÊÑ´¹ |
| |
| ÊÖ¤¹Ãͤϡ¢ÉâÆ°¾®¿ôÅÀDCT½çÊÑ´¹/µÕÊÑ´¹ ¤Î¾ì¹ç¤Ï JSIMD_3DNOW ¤« JSIMD_SSE¡¢ |
| ¤½¤ì°Ê³°¤Î¾ì¹ç¤Ï JSIMD_MMX ¤« JSIMD_SSE2 ¤òÊÖ¤·¤Þ¤¹¡£¤Þ¤¿¡¢0 ¤¬ÊÖ¤Ã¤Æ |
| ¤¤¿¾ì¹ç¤Ï SIMD Ì¿Î᥻¥Ã¥È¤Ï»È¤ï¤ì¤º¡¢½¾Íè¤Î¥ë¡¼¥Á¥ó¤¬»È¤ï¤ì¤ë¤³¤È¤ò |
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| ¤³¤ì¤é¤Î´Ø¿ô¤Î¾Ü¤·¤¤»È¤¤Êý¤Ë¤Ä¤¤¤Æ¤Ï¡¢cjpeg.c, djpeg.c (»ÈÍÑÎã) ¤ò¤´Í÷ |
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| ¤Ê¤ª¡¢¤³¤ì¤é¤Î SIMD ¥Þ¥¹¥¯´Ø¿ô¡¿SIMD ¥â¡¼¥É¾ðÊó´Ø¿ô ¤¬É¬Íפʤ¤¾ì¹ç¤Ï¡¢ |
| °Ê²¼¤Î¥Þ¥¯¥í¤ò jconfig.h ¤Ê¤É¤Ë´Þ¤á¤ë¤³¤È¤Ç¡¢¶Ï¤«¤Ç¤¹¤¬¥³¡¼¥É¥µ¥¤¥º¤¬ |
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| #define JSIMD_MASKFUNC_NOT_SUPPORTED |
| #define JSIMD_MODEINFO_NOT_SUPPORTED |
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| [EOF] |
