From 5b444276ae427091d7c413eb297a909f0a9472b3 Mon Sep 17 00:00:00 2001 From: Andrew Hannam Date: Thu, 17 Jan 2013 17:47:51 +1000 Subject: [PATCH] Implement GMISC Array Operations --- include/gmisc/gmisc.h | 6 ++ src/gmisc/arrayops.c | 206 +++++++++++++++++++++++++++++++++++++++++- 2 files changed, 211 insertions(+), 1 deletion(-) diff --git a/include/gmisc/gmisc.h b/include/gmisc/gmisc.h index 0cce12bd..c68e5ca2 100644 --- a/include/gmisc/gmisc.h +++ b/include/gmisc/gmisc.h @@ -69,6 +69,12 @@ extern "C" { * * @note Assumes the destination buffer is large enough for the resultant data. * @note This routine is optimised to perform as fast as possible. + * @note No type checking is performed on the source format. It is assumed to + * have only valid values eg. ARRAY_DATA_4BITSIGNED will have values + * 0000 -> 0111 for positive numbers and 1111 -> 1000 for negative numbers + * Bits 5 -> 8 in the storage byte are treated in an undefined manner. + * @note If srcfmt or dstfmt is an unknown format, this routine does nothing + * with no warning that something is wrong * * @api */ diff --git a/src/gmisc/arrayops.c b/src/gmisc/arrayops.c index a27ddbdb..6eeb0e75 100644 --- a/src/gmisc/arrayops.c +++ b/src/gmisc/arrayops.c @@ -31,7 +31,211 @@ #if (GFX_USE_GMISC && GMISC_NEED_ARRAYOPS) || defined(__DOXYGEN__) - #error "GMISC (Array Ops): Not implemented yet" +void gmiscArrayConvert(ArrayDataFormat srcfmt, void *src, ArrayDataFormat dstfmt, void *dst, size_t cnt) { + uint8_t *src8, *dst8; + uint16_t *src16, *dst16; + + dst8 = dst; + dst16 = dst; + src8 = src; + src16 = src; + + /* We do this as a big switch in order to optimise efficiency for each transfer type */ + switch(dstfmt) { + case ARRAY_DATA_4BITUNSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: if (dst != src) while(cnt--) { *dst8++ = *src8++; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst8++ = (*src8++ ^ 8); } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst8++ = *src8++ >> 4; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst8++ = (*src8++ ^ 128) >> 4; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst8++ = *src16++ >> 6; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 512) >> 6; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst8++ = *src16++ >> 8; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 2048) >> 8; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst8++ = *src16++ >> 10; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 8192) >> 10; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst8++ = *src16++ >> 12; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 32768) >> 12; } break; + } + break; + case ARRAY_DATA_4BITSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst8++ = (*src8++ ^ 8); } break; + case ARRAY_DATA_4BITSIGNED: if (dst != src) while(cnt--) { *dst8++ = *src8++; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst8++ = (*src8++ ^ 128) >> 4; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst8++ = *src8++ >> 4; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 512) >> 6; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst8++ = *src16++ >> 6; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 2048) >> 8; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst8++ = *src16++ >> 8; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 8192) >> 10; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst8++ = *src16++ >> 10; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 32768) >> 12; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst8++ = *src16++ >> 12; } break; + } + break; + case ARRAY_DATA_8BITUNSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst8++ = *src8++ << 4; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst8++ = (*src8++ ^ 8) << 4; } break; + case ARRAY_DATA_8BITUNSIGNED: if (dst != src) while(cnt--) { *dst8++ = *src8++; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst8++ = (*src8++ ^ 128); } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst8++ = *src16++ >> 2; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 512) >> 2; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst8++ = *src16++ >> 4; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 2048) >> 4; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst8++ = *src16++ >> 6; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 8192) >> 6; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst8++ = *src16++ >> 8; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 32768) >> 8; } break; + } + break; + case ARRAY_DATA_8BITSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst8++ = (*src8++ ^ 8) << 4; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst8++ = *src8++ << 4; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst8++ = (*src8++ ^ 128); } break; + case ARRAY_DATA_8BITSIGNED: if (dst != src) while(cnt--) { *dst8++ = *src8++; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 512) >> 2; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst8++ = *src16++ >> 2; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 2048) >> 4; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst8++ = *src16++ >> 4; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 8192) >> 6; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst8++ = *src16++ >> 6; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst8++ = (*src16++ ^ 32768) >> 8; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst8++ = *src16++ >> 8; } break; + } + break; + case ARRAY_DATA_10BITUNSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst16++ = *src8++ << 6; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 8) << 6; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst16++ = *src8++ << 2; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 128) << 2; } break; + case ARRAY_DATA_10BITUNSIGNED: if (dst != src) while(cnt--) { *dst16++ = *src16++; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 512); } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ >> 2; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 2048) >> 2; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ >> 4; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 8192) >> 4; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ >> 6; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 32768) >> 6; } break; + } + break; + case ARRAY_DATA_10BITSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 8) << 6; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst16++ = *src8++ << 6; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 128) << 2; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst16++ = *src8++ << 2; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 512); } break; + case ARRAY_DATA_10BITSIGNED: if (dst != src) while(cnt--) { *dst16++ = *src16++; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 2048) >> 2; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst16++ = *src16++ >> 2; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 8192) >> 4; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst16++ = *src16++ >> 4; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 32768) >> 6; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst16++ = *src16++ >> 6; } break; + } + break; + case ARRAY_DATA_12BITUNSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst16++ = *src8++ << 8; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 8) << 8; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst16++ = *src8++ << 4; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 128) << 4; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ << 2; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 512) << 2; } break; + case ARRAY_DATA_12BITUNSIGNED: if (dst != src) while(cnt--) { *dst16++ = *src16++; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 2048); } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ >> 2; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 8192) >> 2; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ >> 4; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 32768) >> 4; } break; + } + break; + case ARRAY_DATA_12BITSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 8) << 8; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst16++ = *src8++ << 8; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 128) << 4; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst16++ = *src8++ << 4; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 512) << 2; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst16++ = *src16++ << 2; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 2048); } break; + case ARRAY_DATA_12BITSIGNED: if (dst != src) while(cnt--) { *dst16++ = *src16++; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 8192) >> 2; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst16++ = *src16++ >> 2; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 32768) >> 4; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst16++ = *src16++ >> 4; } break; + } + break; + case ARRAY_DATA_14BITUNSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst16++ = *src8++ << 10; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 8) << 10; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst16++ = *src8++ << 6; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 128) << 6; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ << 4; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 512) << 4; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ << 2; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 2048) >> 2; } break; + case ARRAY_DATA_14BITUNSIGNED: if (dst != src) while(cnt--) { *dst16++ = *src16++; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 8192); } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ >> 2; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 32768) >> 2; } break; + } + break; + case ARRAY_DATA_14BITSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 8) << 10; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst16++ = *src8++ << 10; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 128) << 6; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst16++ = *src8++ << 6; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 512) << 4; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst16++ = *src16++ << 4; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 2048) << 2; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst16++ = *src16++ << 2; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 8192); } break; + case ARRAY_DATA_14BITSIGNED: if (dst != src) while(cnt--) { *dst16++ = *src16++; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 32768) >> 2; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst16++ = *src16++ >> 2; } break; + } + break; + case ARRAY_DATA_16BITUNSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst16++ = *src8++ << 12; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 8) << 12; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst16++ = *src8++ << 8; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 128) << 8; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ << 6; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 512) << 6; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ << 4; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 2048) >> 4; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst16++ = *src16++ >> 2; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 8192) >> 2; } break; + case ARRAY_DATA_16BITUNSIGNED: if (dst != src) while(cnt--) { *dst16++ = *src16++; } break; + case ARRAY_DATA_16BITSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 32768); } break; + } + break; + case ARRAY_DATA_16BITSIGNED: + switch(srcfmt) { + case ARRAY_DATA_4BITUNSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 8) << 12; } break; + case ARRAY_DATA_4BITSIGNED: while(cnt--) { *dst16++ = *src8++ << 12; } break; + case ARRAY_DATA_8BITUNSIGNED: while(cnt--) { *dst16++ = (*src8++ ^ 128) << 8; } break; + case ARRAY_DATA_8BITSIGNED: while(cnt--) { *dst16++ = *src8++ << 8; } break; + case ARRAY_DATA_10BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 512) << 6; } break; + case ARRAY_DATA_10BITSIGNED: while(cnt--) { *dst16++ = *src16++ << 6; } break; + case ARRAY_DATA_12BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 2048) << 4; } break; + case ARRAY_DATA_12BITSIGNED: while(cnt--) { *dst16++ = *src16++ << 4; } break; + case ARRAY_DATA_14BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 8192) << 2; } break; + case ARRAY_DATA_14BITSIGNED: while(cnt--) { *dst16++ = *src16++ >> 2; } break; + case ARRAY_DATA_16BITUNSIGNED: while(cnt--) { *dst16++ = (*src16++ ^ 32768); } break; + case ARRAY_DATA_16BITSIGNED: if (dst != src) while(cnt--) { *dst16++ = *src16++; } break; + } + break; + } +} #endif /* GFX_USE_GMISC && GMISC_NEED_ARRAYOPS */ /** @} */