mirror of
https://github.com/leejet/stable-diffusion.cpp.git
synced 2026-05-08 08:18:51 +00:00
add GemmaTokenizer
This commit is contained in:
leejet
parent
6b675a5ede
commit
51d681e159
@ -7,6 +7,10 @@ add_executable(${TARGET}
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image_metadata.cpp
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main.cpp
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)
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target_include_directories(${TARGET} PRIVATE
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"${CMAKE_CURRENT_SOURCE_DIR}/.."
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"${PROJECT_SOURCE_DIR}/src"
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)
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install(TARGETS ${TARGET} RUNTIME)
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target_link_libraries(${TARGET} PRIVATE stable-diffusion zip ${CMAKE_THREAD_LIBS_INIT})
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if(SD_WEBP)
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@ -19,6 +19,7 @@
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#include "common/media_io.h"
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#include "common/resource_owners.hpp"
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#include "image_metadata.h"
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#include "llm.hpp"
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namespace fs = std::filesystem;
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@ -498,6 +499,15 @@ int main(int argc, const char* argv[]) {
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SDContextParams ctx_params;
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SDGenerationParams gen_params;
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cli_params.verbose = true;
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sd_set_log_callback(sd_log_cb, (void*)&cli_params);
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LLM::GemmaTokenizer tokenizer;
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auto tokens = tokenizer.tokenize("<html> 一只可爱的小猫");
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for (auto token : tokens) {
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LOG_INFO("%d", token);
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}
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return 0;
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parse_args(argc, argv, cli_params, ctx_params, gen_params);
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sd_set_log_callback(sd_log_cb, (void*)&cli_params);
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log_verbose = cli_params.verbose;
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323
src/llm.hpp
323
src/llm.hpp
@ -47,24 +47,12 @@ namespace LLM {
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std::vector<std::string> special_tokens;
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bool add_bos_token = false;
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bool add_bos_token = false;
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bool byte_level_bpe = true;
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bool byte_fallback = false;
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protected:
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static std::string strip(const std::string& str) {
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std::string::size_type start = str.find_first_not_of(" \t\n\r\v\f");
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std::string::size_type end = str.find_last_not_of(" \t\n\r\v\f");
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if (start == std::string::npos) {
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// String contains only whitespace characters
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return "";
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}
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return str.substr(start, end - start + 1);
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}
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static std::string whitespace_clean(std::string text) {
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text = std::regex_replace(text, std::regex(R"(\s+)"), " ");
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text = strip(text);
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virtual std::string preprocess(const std::string& text) const {
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return text;
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}
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@ -92,6 +80,22 @@ namespace LLM {
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return false;
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}
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static std::vector<std::u32string> split_utf32(const std::u32string& s, char32_t delim) {
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std::vector<std::u32string> result;
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size_t start = 0;
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while (true) {
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size_t pos = s.find(delim, start);
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if (pos == std::u32string::npos) {
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result.emplace_back(s.substr(start));
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break;
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}
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result.emplace_back(s.substr(start, pos - start));
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start = pos + 1;
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}
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return result;
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}
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public:
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BPETokenizer() = default;
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@ -208,7 +212,7 @@ namespace LLM {
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}
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}
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std::vector<int> encode(std::string text, on_new_token_cb_t on_new_token_cb = nullptr) {
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virtual std::vector<int> encode(std::string text, on_new_token_cb_t on_new_token_cb = nullptr) {
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std::string original_text = text;
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std::vector<int32_t> bpe_tokens;
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std::vector<std::string> token_strs;
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@ -230,25 +234,43 @@ namespace LLM {
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}
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}
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std::string token_str = token;
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std::string token_str = preprocess(token);
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std::u32string utf32_token;
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for (int i = 0; i < token_str.length(); i++) {
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unsigned char b = token_str[i];
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utf32_token += byte_encoder[b];
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if (byte_level_bpe) {
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for (int i = 0; i < token_str.length(); i++) {
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unsigned char b = token_str[i];
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utf32_token += byte_encoder[b];
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}
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} else {
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utf32_token = utf8_to_utf32(token_str);
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}
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auto bpe_strs = bpe(utf32_token);
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size_t start = 0;
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size_t pos;
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while ((pos = bpe_strs.find(' ', start)) != std::u32string::npos) {
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auto bpe_str = bpe_strs.substr(start, pos - start);
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bpe_tokens.push_back(encoder[bpe_str]);
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token_strs.push_back(utf32_to_utf8(bpe_str));
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start = pos + 1;
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auto bpe_strs = bpe(utf32_token);
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for (const auto& bpe_str : split_utf32(bpe_strs, U' ')) {
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int token_id;
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auto iter = encoder.find(bpe_str);
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if (iter != encoder.end()) {
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token_id = iter->second;
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} else {
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if (byte_fallback) {
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auto utf8_token_str = utf32_to_utf8(bpe_str);
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for (int i = 0; i < utf8_token_str.length(); i++) {
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unsigned char b = utf8_token_str[i];
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char hex_buf[16];
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snprintf(hex_buf, sizeof(hex_buf), "<0x%02X>", b);
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iter = encoder.find(utf8_to_utf32(hex_buf));
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GGML_ASSERT(iter != encoder.end());
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bpe_tokens.push_back(token_id);
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token_strs.push_back(hex_buf);
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}
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continue;
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} else {
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token_id = UNK_TOKEN_ID;
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}
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}
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bpe_tokens.push_back(token_id);
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token_strs.push_back(utf32_to_utf8(bpe_str));
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}
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auto bpe_str = bpe_strs.substr(start, bpe_strs.size() - start);
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bpe_tokens.push_back(encoder[bpe_str]);
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token_strs.push_back(utf32_to_utf8(bpe_str));
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}
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}
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@ -259,7 +281,6 @@ namespace LLM {
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}
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ss << "]";
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LOG_DEBUG("split prompt \"%s\" to tokens %s", original_text.c_str(), ss.str().c_str());
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// printf("split prompt \"%s\" to tokens %s \n", original_text.c_str(), ss.str().c_str());
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return bpe_tokens;
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}
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};
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@ -268,35 +289,18 @@ namespace LLM {
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protected:
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void load_from_merges(const std::string& merges_utf8_str) {
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auto byte_unicode_pairs = bytes_to_unicode();
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// printf("byte_unicode_pairs have %lu pairs \n", byte_unicode_pairs.size());
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byte_encoder = std::map<int, std::u32string>(byte_unicode_pairs.begin(), byte_unicode_pairs.end());
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byte_encoder = std::map<int, std::u32string>(byte_unicode_pairs.begin(), byte_unicode_pairs.end());
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for (auto& pair : byte_unicode_pairs) {
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byte_decoder[pair.second] = pair.first;
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}
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// for (auto & pair: byte_unicode_pairs) {
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// std::cout << pair.first << ": " << pair.second << std::endl;
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// }
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std::vector<std::u32string> merges;
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size_t start = 0;
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size_t pos;
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std::u32string merges_utf32_str = utf8_to_utf32(merges_utf8_str);
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while ((pos = merges_utf32_str.find('\n', start)) != std::string::npos) {
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merges.push_back(merges_utf32_str.substr(start, pos - start));
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start = pos + 1;
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}
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LOG_DEBUG("merges size %llu", merges.size());
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merges = std::vector<std::u32string>(merges.begin(), merges.end());
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std::u32string merges_utf32_str = utf8_to_utf32(merges_utf8_str);
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std::vector<std::u32string> merges = split_utf32(merges_utf32_str, U'\n');
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std::vector<std::pair<std::u32string, std::u32string>> merge_pairs;
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// int print_num = 10;
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for (const auto& merge : merges) {
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size_t space_pos = merge.find(' ');
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merge_pairs.emplace_back(merge.substr(0, space_pos), merge.substr(space_pos + 1));
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// if (print_num > 0) {
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// print_num--;
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// printf("%s :: %s | %s \n", utf32_to_utf8(merge).c_str(), utf32_to_utf8(merge.substr(0, space_pos)).c_str(),
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// utf32_to_utf8(merge.substr(space_pos + 1)).c_str());
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// }
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}
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LOG_DEBUG("merges size %zu", merge_pairs.size());
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std::vector<std::u32string> tokens;
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for (const auto& pair : byte_unicode_pairs) {
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@ -396,27 +400,14 @@ namespace LLM {
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for (auto& pair : byte_unicode_pairs) {
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byte_decoder[pair.second] = pair.first;
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}
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std::vector<std::u32string> merges;
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size_t start = 0;
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size_t pos;
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std::u32string merges_utf32_str = utf8_to_utf32(merges_utf8_str);
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while ((pos = merges_utf32_str.find('\n', start)) != std::string::npos) {
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merges.push_back(merges_utf32_str.substr(start, pos - start));
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start = pos + 1;
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}
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LOG_DEBUG("merges size %llu", merges.size());
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merges = std::vector<std::u32string>(merges.begin(), merges.end());
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std::u32string merges_utf32_str = utf8_to_utf32(merges_utf8_str);
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std::vector<std::u32string> merges = split_utf32(merges_utf32_str, U'\n');
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std::vector<std::pair<std::u32string, std::u32string>> merge_pairs;
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// int print_num = 10;
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for (const auto& merge : merges) {
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size_t space_pos = merge.find(' ');
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merge_pairs.emplace_back(merge.substr(0, space_pos), merge.substr(space_pos + 1));
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// if (print_num > 0) {
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// print_num--;
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// printf("%s :: %s | %s \n", utf32_to_utf8(merge).c_str(), utf32_to_utf8(merge.substr(0, space_pos)).c_str(),
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// utf32_to_utf8(merge.substr(space_pos + 1)).c_str());
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// }
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}
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LOG_DEBUG("merges size %zu", merge_pairs.size());
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int rank = 0;
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for (const auto& merge : merge_pairs) {
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@ -473,6 +464,198 @@ namespace LLM {
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}
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};
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class GemmaTokenizer : public BPETokenizer {
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protected:
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std::vector<std::string> special_tokens_before_merge;
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std::vector<std::string> special_tokens_after_merge;
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std::string preprocess(const std::string& text) const override {
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std::string normalized = text;
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size_t pos = 0;
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while ((pos = normalized.find(' ', pos)) != std::string::npos) {
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normalized.replace(pos, 1, "\xE2\x96\x81");
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pos += 3;
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}
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return normalized;
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}
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void load_from_merges(const std::string& merges_utf8_str, const std::string& vocab_utf8_str) {
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nlohmann::json vocab;
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try {
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vocab = nlohmann::json::parse(vocab_utf8_str);
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} catch (const nlohmann::json::parse_error&) {
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GGML_ABORT("invalid vocab json str");
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}
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for (const auto& [key, value] : vocab.items()) {
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std::u32string token = utf8_to_utf32(key);
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int i = value;
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encoder[token] = i;
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decoder[i] = token;
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}
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encoder_len = static_cast<int>(vocab.size());
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LOG_DEBUG("vocab size: %d", encoder_len);
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std::u32string merges_utf32_str = utf8_to_utf32(merges_utf8_str);
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std::vector<std::u32string> merges = split_utf32(merges_utf32_str, U'\n');
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std::vector<std::pair<std::u32string, std::u32string>> merge_pairs;
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for (const auto& merge : merges) {
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size_t space_pos = merge.find(' ');
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merge_pairs.emplace_back(merge.substr(0, space_pos), merge.substr(space_pos + 1));
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}
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LOG_DEBUG("merges size %zu", merge_pairs.size());
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int rank = 0;
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for (const auto& merge : merge_pairs) {
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bpe_ranks[merge] = rank++;
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}
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bpe_len = rank;
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};
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public:
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explicit GemmaTokenizer(const std::string& merges_utf8_str = "", const std::string& vocab_json_utf8_str = "") {
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byte_level_bpe = false;
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byte_fallback = true;
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add_bos_token = true;
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PAD_TOKEN = "<pad>";
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EOS_TOKEN = "<eos>";
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BOS_TOKEN = "<bos>";
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UNK_TOKEN = "<unk>";
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PAD_TOKEN_ID = 0;
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EOS_TOKEN_ID = 1;
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BOS_TOKEN_ID = 2;
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UNK_TOKEN_ID = 3;
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special_tokens_before_merge = {
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PAD_TOKEN,
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EOS_TOKEN,
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BOS_TOKEN,
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UNK_TOKEN,
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"<mask>",
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"[multimodal]",
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};
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for (int i = 0; i <= 98; i++) {
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special_tokens_before_merge.push_back("<unused" + std::to_string(i) + ">");
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}
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special_tokens_before_merge.push_back("<start_of_turn>");
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special_tokens_before_merge.push_back("<end_of_turn>");
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for (int i = 1; i <= 31; i++) {
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special_tokens_before_merge.push_back(std::string(i, '\n'));
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}
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for (int i = 2; i <= 31; i++) {
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std::string whitespace_token;
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for (int j = 0; j < i; j++) {
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whitespace_token += "\xE2\x96\x81";
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}
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special_tokens_before_merge.push_back(whitespace_token);
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}
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std::vector<std::string> html_tokens = {
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"<table>",
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"<caption>",
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"<thead>",
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"<tbody>",
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"<tfoot>",
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"<tr>",
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"<th>",
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"<td>",
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"</table>",
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"</caption>",
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"</thead>",
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"</tbody>",
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"</tfoot>",
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"</tr>",
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"</th>",
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"</td>",
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"<h1>",
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"<h2>",
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"<h3>",
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"<h4>",
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"<h5>",
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"<h6>",
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"<blockquote>",
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"</h1>",
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"</h2>",
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"</h3>",
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"</h4>",
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"</h5>",
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"</h6>",
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"</blockquote>",
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"<strong>",
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"<em>",
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"<b>",
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"<i>",
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"<u>",
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"<s>",
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"<sub>",
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"<sup>",
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"<code>",
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"</strong>",
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"</em>",
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"</b>",
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"</i>",
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"</u>",
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"</s>",
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"</sub>",
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"</sup>",
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"</code>",
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"<a>",
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"<html>",
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"<body>",
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"<img>",
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"<span>",
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"<bbox>",
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"<ul>",
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"<li>",
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"<div>",
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"<iframe>",
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"<footer>",
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"</a>",
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"</html>",
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"</body>",
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"</img>",
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"</span>",
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"</bbox>",
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"</ul>",
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"</li>",
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"</div>",
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"</iframe>",
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"</footer>",
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};
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special_tokens_before_merge.insert(special_tokens_before_merge.end(),
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html_tokens.begin(),
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html_tokens.end());
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for (int i = 0; i <= 0xFF; i++) {
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char hex_buf[16];
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snprintf(hex_buf, sizeof(hex_buf), "<0x%02X>", i);
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special_tokens_before_merge.push_back(hex_buf);
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}
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special_tokens_after_merge = {
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"<start_of_image>",
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"<end_of_image>",
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};
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for (int i = 1; i <= 31; i++) {
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special_tokens_after_merge.insert(special_tokens_after_merge.begin() + i - 1,
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std::string(i, '\t'));
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}
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for (int i = 99; i <= 6241; i++) {
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special_tokens_after_merge.push_back("<unused" + std::to_string(i) + ">");
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}
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special_tokens_after_merge.push_back("<image_soft_token>");
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special_tokens = special_tokens_before_merge;
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special_tokens.insert(special_tokens.end(),
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special_tokens_after_merge.begin(),
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special_tokens_after_merge.end());
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if (merges_utf8_str.size() > 0 && vocab_json_utf8_str.size() > 0) {
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load_from_merges(merges_utf8_str, vocab_json_utf8_str);
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} else {
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load_from_merges(load_gemma_merges(), load_gemma_vocab_json());
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}
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}
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};
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enum class LLMArch {
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QWEN2_5_VL,
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QWEN3,
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BIN
src/vocab/gemma_merges.hpp
Normal file
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src/vocab/gemma_merges.hpp
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BIN
src/vocab/gemma_vocab.hpp
Normal file
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src/vocab/gemma_vocab.hpp
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@ -1,5 +1,7 @@
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#include "vocab.h"
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#include "clip_t5.hpp"
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#include "gemma_merges.hpp"
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#include "gemma_vocab.hpp"
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#include "mistral.hpp"
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#include "qwen.hpp"
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#include "umt5.hpp"
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@ -32,4 +34,14 @@ std::string load_t5_tokenizer_json() {
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std::string load_umt5_tokenizer_json() {
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std::string json_str(reinterpret_cast<const char*>(umt5_tokenizer_json_str), sizeof(umt5_tokenizer_json_str));
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return json_str;
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}
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std::string load_gemma_merges() {
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std::string merges_utf8_str(reinterpret_cast<const char*>(gemma_merges_utf8_c_str), sizeof(gemma_merges_utf8_c_str));
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return merges_utf8_str;
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}
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std::string load_gemma_vocab_json() {
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std::string json_str(reinterpret_cast<const char*>(gemma_vocab_json_utf8_c_str), sizeof(gemma_vocab_json_utf8_c_str));
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return json_str;
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}
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@ -9,5 +9,7 @@ std::string load_mistral_merges();
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std::string load_mistral_vocab_json();
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std::string load_t5_tokenizer_json();
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std::string load_umt5_tokenizer_json();
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std::string load_gemma_merges();
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std::string load_gemma_vocab_json();
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#endif // __VOCAB_H__
|
||||
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