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font_wip branch: new WIP font stuff using "stb_truetype.h",

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not implemented for EAN/UPC, not fully tested
This commit is contained in:
gitlost
2026-07-27 12:21:19 +01:00
parent d6a4bdfe90
commit a4f0fa0fd2
144 changed files with 8276 additions and 1567 deletions
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backend/gif.c
+16 -2
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@@ -1,7 +1,7 @@
/* gif.c - Handles output to gif file */
/*
libzint - the open source barcode library
Copyright (C) 2009-2025 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2009-2026 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@@ -241,7 +241,7 @@ static void gif_lzw(struct gif_state *pState, unsigned char paletteBitSize) {
INTERNAL int zint_gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf) {
struct filemem fm;
unsigned char outbuf[10];
unsigned char paletteRGB[10][3];
unsigned char paletteRGB[256][3];
int paletteCount, i;
unsigned char paletteBitSize;
int paletteSize;
@@ -254,6 +254,7 @@ INTERNAL int zint_gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixe
unsigned char RGBbg[3];
unsigned char fgalpha;
unsigned char bgalpha;
const int grayscale = zint_out_grayscale(symbol);
const size_t bitmapSize = (size_t) symbol->bitmap_height * symbol->bitmap_width;
@@ -336,6 +337,19 @@ INTERNAL int zint_gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixe
paletteBitSize = 4;
}
}
} else if (grayscale) {
const int diff_red = RGBfg[0] - RGBbg[0];
const int diff_green = RGBfg[1] - RGBbg[1];
const int diff_blue = RGBfg[2] - RGBbg[2];
for (paletteCount = 0; paletteCount <= 0xFF; paletteCount++) {
paletteRGB[paletteCount][0] = RGBbg[0] + (diff_red * paletteCount) / 0xFF;
paletteRGB[paletteCount][1] = RGBbg[1] + (diff_green * paletteCount) / 0xFF;
paletteRGB[paletteCount][2] = RGBbg[2] + (diff_blue * paletteCount) / 0xFF;
State.map[paletteCount] = paletteCount;
}
bgindex = 0;
fgindex = 0xFF;
paletteBitSize = 8;
} else {
State.map['0'] = (unsigned char) (bgindex = 0);
memcpy(paletteRGB[bgindex], RGBbg, 3);