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| author | Andrew Hannam <andrewh@inmarket.com.au> | 2013-01-17 17:47:51 +1000 |
|---|---|---|
| committer | Andrew Hannam <andrewh@inmarket.com.au> | 2013-01-17 17:47:51 +1000 |
| commit | 5b444276ae427091d7c413eb297a909f0a9472b3 (patch) | |
| tree | 8642fbc5b7b56fe1803baa0d59e06d3b61b88944 | |
| parent | 1fc03db5861c232792042844c15153a7e1bcc724 (diff) | |
| download | uGFX-5b444276ae427091d7c413eb297a909f0a9472b3.tar.gz uGFX-5b444276ae427091d7c413eb297a909f0a9472b3.tar.bz2 uGFX-5b444276ae427091d7c413eb297a909f0a9472b3.zip | |
Implement GMISC Array Operations
| -rw-r--r-- | include/gmisc/gmisc.h | 6 | ||||
| -rw-r--r-- | src/gmisc/arrayops.c | 206 |
2 files changed, 211 insertions, 1 deletions
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 */
/** @} */
|