mirror of https://github.com/nothings/stb.git
155 lines
4.3 KiB
C
155 lines
4.3 KiB
C
#ifndef _CRT_SECURE_NO_WARNINGS
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// Fixes Compile Errors for Visual Studio 2005 or newer
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#define _CRT_SECURE_NO_WARNINGS
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#endif
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#include <stdlib.h>
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// this isn't meant to compile standalone; link with test_c_compilation.c as well
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#include "stb_rect_pack.h"
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#define STB_TRUETYPE_IMPLEMENTATION
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#include "stb_truetype.h"
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#include "stb_image_write.h"
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#ifdef TT_TEST
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#include <stdio.h>
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unsigned char ttf_buffer[1 << 25];
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unsigned char output[512*100];
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void debug(void)
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{
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stbtt_fontinfo font;
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fread(ttf_buffer, 1, 1<<25, fopen("c:/x/lm/LiberationMono-Regular.ttf", "rb"));
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stbtt_InitFont(&font, ttf_buffer, 0);
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stbtt_MakeGlyphBitmap(&font, output, 6, 9, 512, 5.172414E-03f, 5.172414E-03f, 54);
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}
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#define BITMAP_W 256
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#define BITMAP_H 512
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unsigned char temp_bitmap[BITMAP_H][BITMAP_W];
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stbtt_bakedchar cdata[256*2]; // ASCII 32..126 is 95 glyphs
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stbtt_packedchar pdata[256*2];
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int main(int argc, char **argv)
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{
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stbtt_fontinfo font;
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unsigned char *bitmap;
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int w,h,i,j,c = (argc > 1 ? atoi(argv[1]) : '@'), s = (argc > 2 ? atoi(argv[2]) : 32);
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//debug();
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// @TODO: why is minglui.ttc failing?
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//fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/mingliu.ttc", "rb"));
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fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/DejaVuSans.ttf", "rb"));
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stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
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#if 0
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{
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stbtt__bitmap b;
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stbtt__point p[2];
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int wcount[2] = { 2,0 };
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p[0].x = 0.2f;
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p[0].y = 0.3f;
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p[1].x = 3.8f;
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p[1].y = 0.8f;
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b.w = 16;
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b.h = 2;
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b.stride = 16;
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b.pixels = malloc(b.w*b.h);
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stbtt__rasterize(&b, p, wcount, 1, 1, 1, 0, 0, 0, 0, 0, NULL);
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for (i=0; i < 8; ++i)
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printf("%f\n", b.pixels[i]/255.0);
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}
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#endif
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#if 1
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{
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static stbtt_pack_context pc;
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static stbtt_packedchar cd[256];
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static unsigned char atlas[1024*1024];
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stbtt_PackBegin(&pc, atlas, 1024,1024,1024,1,NULL);
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stbtt_PackFontRange(&pc, ttf_buffer, 0, 32.0, 0, 256, cd);
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stbtt_PackEnd(&pc);
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}
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#endif
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#if 1
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{
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static stbtt_pack_context pc;
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static stbtt_packedchar cd[256];
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static unsigned char atlas[1024*1024];
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unsigned char *data;
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data = stbtt_GetCodepointSDF(&font, stbtt_ScaleForPixelHeight(&font,32.0), 'u', 4, 128, 128/4, &w,&h,&i,&j);
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for (j=0; j < h; ++j) {
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for (i=0; i < w; ++i) {
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putchar(" .:ioVM@"[data[j*w+i]>>5]);
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}
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putchar('\n');
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}
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}
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#endif
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#if 0
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stbtt_BakeFontBitmap(ttf_buffer,stbtt_GetFontOffsetForIndex(ttf_buffer,0), 40.0, temp_bitmap[0],BITMAP_W,BITMAP_H, 32,96, cdata); // no guarantee this fits!
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stbi_write_png("fonttest1.png", BITMAP_W, BITMAP_H, 1, temp_bitmap, 0);
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{
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stbtt_pack_context pc;
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stbtt_PackBegin(&pc, temp_bitmap[0], BITMAP_W, BITMAP_H, 0, 1, NULL);
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stbtt_PackFontRange(&pc, ttf_buffer, 0, 20.0, 32, 95, pdata);
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stbtt_PackFontRange(&pc, ttf_buffer, 0, 20.0, 0xa0, 0x100-0xa0, pdata);
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stbtt_PackEnd(&pc);
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stbi_write_png("fonttest2.png", BITMAP_W, BITMAP_H, 1, temp_bitmap, 0);
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}
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{
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stbtt_pack_context pc;
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stbtt_pack_range pr[2];
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stbtt_PackBegin(&pc, temp_bitmap[0], BITMAP_W, BITMAP_H, 0, 1, NULL);
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pr[0].chardata_for_range = pdata;
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pr[0].array_of_unicode_codepoints = NULL;
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pr[0].first_unicode_codepoint_in_range = 32;
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pr[0].num_chars = 95;
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pr[0].font_size = 20.0f;
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pr[1].chardata_for_range = pdata+256;
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pr[1].array_of_unicode_codepoints = NULL;
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pr[1].first_unicode_codepoint_in_range = 0xa0;
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pr[1].num_chars = 0x100 - 0xa0;
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pr[1].font_size = 20.0f;
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stbtt_PackSetOversampling(&pc, 2, 2);
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stbtt_PackFontRanges(&pc, ttf_buffer, 0, pr, 2);
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stbtt_PackEnd(&pc);
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stbi_write_png("fonttest3.png", BITMAP_W, BITMAP_H, 1, temp_bitmap, 0);
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}
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return 0;
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#endif
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(void)stbtt_GetCodepointBitmapSubpixel(&font,
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0.4972374737262726f,
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0.4986416995525360f,
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0.2391788959503174f,
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0.1752119064331055f,
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'd',
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&w, &h,
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0,0);
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bitmap = stbtt_GetCodepointBitmap(&font, 0,stbtt_ScaleForPixelHeight(&font, (float)s), c, &w, &h, 0,0);
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for (j=0; j < h; ++j) {
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for (i=0; i < w; ++i)
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putchar(" .:ioVM@"[bitmap[j*w+i]>>5]);
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putchar('\n');
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}
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return 0;
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}
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#endif
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