C++实现flm文件解析
时间: 2023-07-11 21:26:19 浏览: 71
以下是一个简单的C++实现FLM文件解析的示例代码:
```cpp
#include <iostream>
#include <fstream>
#include <vector>
struct FLMHeader {
char magic[4];
uint32_t version;
uint32_t num_fonts;
};
struct FLMFontInfo {
uint32_t font_id;
uint32_t num_glyphs;
uint32_t glyph_offset;
};
struct FLMGlyphInfo {
uint32_t glyph_id;
uint32_t glyph_size;
uint32_t glyph_offset;
};
int main(int argc, char** argv) {
if (argc < 2) {
std::cout << "Usage: " << argv[0] << " <flm_file>" << std::endl;
return 0;
}
std::ifstream fs(argv[1], std::ios::binary);
if (!fs.is_open()) {
std::cout << "Failed to open FLM file: " << argv[1] << std::endl;
return 0;
}
FLMHeader header;
fs.read(reinterpret_cast<char*>(&header), sizeof(header));
if (strncmp(header.magic, "FLM ", 4) != 0) {
std::cout << "Invalid FLM file: " << argv[1] << std::endl;
return 0;
}
std::vector<FLMFontInfo> font_info_list(header.num_fonts);
fs.read(reinterpret_cast<char*>(font_info_list.data()), sizeof(FLMFontInfo) * header.num_fonts);
for (auto& font_info : font_info_list) {
std::cout << "Font ID: " << font_info.font_id << std::endl;
fs.seekg(font_info.glyph_offset, std::ios_base::beg);
std::vector<FLMGlyphInfo> glyph_info_list(font_info.num_glyphs);
fs.read(reinterpret_cast<char*>(glyph_info_list.data()), sizeof(FLMGlyphInfo) * font_info.num_glyphs);
for (auto& glyph_info : glyph_info_list) {
fs.seekg(glyph_info.glyph_offset, std::ios_base::beg);
std::vector<char> glyph_data(glyph_info.glyph_size);
fs.read(glyph_data.data(), glyph_info.glyph_size);
// Process glyph data here
}
}
fs.close();
return 0;
}
```
这个简单的代码实现了FLM文件头和字体、字形信息的读取,并可以通过文件偏移量读取每个字形的数据。在实际使用中,需要根据具体的需求进一步扩展和优化代码。
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