mirrors/zint-barcode-generator
1
0
Fork 0
mirror of https://git.code.sf.net/p/zint/code synced 2025-05-18 00:54:36 -04:00
Code Issues Projects Releases Packages Wiki Activity

Performance improvements for linear encoding and raster output

Browse source 
- use fixed-length string tables (mostly) instead of (char *) pointer ones
   (saves ~40K)
 - re-use C128Table for CODABLOCKF and CODE16K
   (required removal of Stop character and extra CODE16K-only entry)
 - use pointer to destination and copy (memcpy/strcpy(), bin_append_posn())
   instead of concatenating (strcat()) (mostly)
 - replace last remaining bin_append()s with bin_append_posn();
   bin_append() removed
 - add length arg to toupper() and expand() (avoids strlen())
 - change is_sane() to use table-based flags (avoids an iteration)
 - rename lookup() to is_sane_lookup() and change to check and return posns
   and use in pointer to destination loops (avoids strcat()s)
 - remove special case PHARMA in expand() (dealt with in pharma())
 - make #define SILVER/CALCIUM/TECHNETIUM/KRSET etc static strings
 - replace strchr() -> posn()
 - CODE128: populate destination once in checksum loop; re-use and export
   some more routines (c128_set_a/b/c(), c128_put_in_set()) for sharing;
   prefix defines (SHIFTA -> C128_SHIFTA etc) and existing exported routines
 - use factor XOR toggle trick in checksum calcs (avoids branch)
 - raster.c: fill out single 1-pixel row and copy using new draw_bar_line(),
   copy_bar_line() routines; similarly in buffer_plot compare previous line &
   copy if same (same technique as used to improve non-half-integer scaling,
   significant performance increase, (c) codemonkey82);
   also done for PNG (BMP/GIF/PCX/TIFF not done)
 - raster/vector/output.c: shorten "output_" prefix -> "out_";
   sync vector to other raster changes to try to keep source files similar
 - 2of5.c: prefix "c25_"
JAPANPOST: return error if input data truncated (backward incompatible)
DAFT: max chars 50 -> 100
common.c: istwodigit() -> is_twodigit()
common.c/emf.c/output.c: use some further stripf()s (MSVC6 float variations)
library.c: new check_output_args() helper
zint.h: add BARCODE_LAST marker and use in library.c
QRCODE: remove a NOLINT (requires clang-tidy-13), one remaining
CMake: separate no-optimize from ZINT_DEBUG into new ZINT_NOOPT option
This commit is contained in:
gitlost 2021-10-20 23:05:30 +01:00
parent e8b59aa696
commit fab7435fac
72 changed files with 3501 additions and 2380 deletions
Download patch file Download diff file Expand all files Collapse all files

10
backend/output.h
View file

@ -37,14 +37,14 @@
extern "C" {
#endif /* __cplusplus */
INTERNAL int output_check_colour_options(struct zint_symbol *symbol);
INTERNAL void output_set_whitespace_offsets(const struct zint_symbol *symbol, const int hide_text,
INTERNAL int out_check_colour_options(struct zint_symbol *symbol);
INTERNAL void out_set_whitespace_offsets(const struct zint_symbol *symbol, const int hide_text,
float *xoffset, float *yoffset, float *roffset, float *boffset, const float scaler,
int *xoffset_si, int *yoffset_si, int *roffset_si, int *boffset_si);
INTERNAL int output_process_upcean(const struct zint_symbol *symbol, int *p_main_width, int *p_comp_xoffset,
INTERNAL int out_process_upcean(const struct zint_symbol *symbol, int *p_main_width, int *p_comp_xoffset,
unsigned char addon[6], int *p_addon_gap);
INTERNAL float output_large_bar_height(struct zint_symbol *symbol, int si);
INTERNAL void output_upcean_split_text(int upceanflag, unsigned char text[],
INTERNAL float out_large_bar_height(struct zint_symbol *symbol, int si);
INTERNAL void out_upcean_split_text(int upceanflag, unsigned char text[],
unsigned char textpart1[5], unsigned char textpart2[7], unsigned char textpart3[7],
unsigned char textpart4[2]);