Tobi-D7
267f9ce5c3
Lets move away from the c standart FILE and use c++ fstream as well as c++17 filesystem!!!
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
#include <renderd7/Fonts/NFontApi.hpp>
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#define STB_TRUETYPE_IMPLEMENTATION // force following include to generate
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// implementation
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#include <renderd7/external/stb_truetype.h>
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include <renderd7/external/stb_image_write.h>
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#include <fstream>
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RenderD7::NFontApi::NFontApi() {}
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RenderD7::NFontApi::~NFontApi() {}
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void RenderD7::NFontApi::LoadTTF(std::string path) {
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/////READ FILE
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unsigned char *buffer;
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long size = 0;
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std::fstream ttf__(path, std::ios::in | std::ios::binary);
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if(!ttf__.is_open()) {
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return; // Add Error Handler in future
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}
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ttf__.seekg(0, std::ios::end);
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size = ttf__.tellg();
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ttf__.seekg(0, std::ios::beg);
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buffer = (unsigned char *)malloc(size);
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ttf__.read(reinterpret_cast<char*>(buffer), size);
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ttf__.close();
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/////Setup Font
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if (!stbtt_InitFont(&font, buffer, 0)) {
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printf("failed\n");
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status += "failed\n";
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return;
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}
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status += "success!\n";
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b_h = 128;
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b_w = 512;
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l_h = 24; /* line height */
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scale = stbtt_ScaleForPixelHeight(&font, l_h);
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stbtt_GetFontVMetrics(&font, &ascent, &decent, &linegap);
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linespace = scale * (ascent - decent + linegap);
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baseline = (int)(ascent * scale);
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height = (int)((ascent - decent) * scale);
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}
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unsigned char *RenderD7::NFontApi::GetGlyphBitmap(char glyph) {
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// stbtt_GetGlyphBitmapBox(&font, glyph, scale, scale, &x0, &y0, &x1, &y1);
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stbtt_GetCodepointBitmapBox(&font, glyph, scale, scale, &x0, &y0, &x1, &y1);
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w = x1 - x0;
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h = y1 - y0;
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unsigned char *bitmap;
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bitmap = stbtt_GetCodepointBitmap(&font, scale, scale, glyph, &w, &h, 0, 0);
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return bitmap;
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}
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int RenderD7::NFontApi::GetGlyphHeight(char glyph) {
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stbtt_GetCodepointBitmapBox(&font, glyph, scale, scale, &x0, &y0, &x1, &y1);
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w = x1 - x0;
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h = y1 - y0;
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return h;
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}
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int RenderD7::NFontApi::GetGlyphWidth(char glyph) {
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stbtt_GetCodepointBitmapBox(&font, glyph, scale, scale, &x0, &y0, &x1, &y1);
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w = x1 - x0;
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h = y1 - y0;
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return w;
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}
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