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-rw-r--r--src/3rdparty/freetype/src/dlg/dlg.c803
1 files changed, 803 insertions, 0 deletions
diff --git a/src/3rdparty/freetype/src/dlg/dlg.c b/src/3rdparty/freetype/src/dlg/dlg.c
new file mode 100644
index 0000000000..0e6bc74b6c
--- /dev/null
+++ b/src/3rdparty/freetype/src/dlg/dlg.c
@@ -0,0 +1,803 @@
+// Copyright (c) 2019 nyorain
+// Distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt
+
+#define _XOPEN_SOURCE 600
+#define _POSIX_C_SOURCE 200809L
+#define _WIN32_WINNT 0x0600
+
+// Needed on windows so that we can use sprintf without warning.
+#define _CRT_SECURE_NO_WARNINGS
+
+#include <dlg/output.h>
+#include <dlg/dlg.h>
+#include <wchar.h>
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+const char* const dlg_reset_sequence = "\033[0m";
+const struct dlg_style dlg_default_output_styles[] = {
+ {dlg_text_style_italic, dlg_color_green, dlg_color_none},
+ {dlg_text_style_dim, dlg_color_gray, dlg_color_none},
+ {dlg_text_style_none, dlg_color_cyan, dlg_color_none},
+ {dlg_text_style_none, dlg_color_yellow, dlg_color_none},
+ {dlg_text_style_none, dlg_color_red, dlg_color_none},
+ {dlg_text_style_bold, dlg_color_red, dlg_color_none}
+};
+
+static void* xalloc(size_t size) {
+ void* ret = calloc(size, 1);
+ if(!ret) fprintf(stderr, "dlg: calloc returned NULL, probably crashing (size: %zu)\n", size);
+ return ret;
+}
+
+static void* xrealloc(void* ptr, size_t size) {
+ void* ret = realloc(ptr, size);
+ if(!ret) fprintf(stderr, "dlg: realloc returned NULL, probably crashing (size: %zu)\n", size);
+ return ret;
+}
+
+struct dlg_tag_func_pair {
+ const char* tag;
+ const char* func;
+};
+
+struct dlg_data {
+ const char** tags; // vec
+ struct dlg_tag_func_pair* pairs; // vec
+ char* buffer;
+ size_t buffer_size;
+};
+
+static dlg_handler g_handler = dlg_default_output;
+static void* g_data = NULL;
+
+static void dlg_free_data(void* data);
+static struct dlg_data* dlg_create_data(void);
+
+// platform-specific
+#if defined(__unix__) || defined(__unix) || defined(__linux__) || defined(__APPLE__) || defined(__MACH__)
+ #define DLG_OS_UNIX
+ #include <unistd.h>
+ #include <pthread.h>
+ #include <sys/time.h>
+
+ static pthread_key_t dlg_data_key;
+
+ static void dlg_main_cleanup(void) {
+ void* data = pthread_getspecific(dlg_data_key);
+ if(data) {
+ dlg_free_data(data);
+ pthread_setspecific(dlg_data_key, NULL);
+ }
+ }
+
+ static void init_data_key(void) {
+ pthread_key_create(&dlg_data_key, dlg_free_data);
+ atexit(dlg_main_cleanup);
+ }
+
+ static struct dlg_data* dlg_data(void) {
+ static pthread_once_t key_once = PTHREAD_ONCE_INIT;
+ pthread_once(&key_once, init_data_key);
+
+ void* data = pthread_getspecific(dlg_data_key);
+ if(!data) {
+ data = dlg_create_data();
+ pthread_setspecific(dlg_data_key, data);
+ }
+
+ return (struct dlg_data*) data;
+ }
+
+ static void lock_file(FILE* file) {
+ flockfile(file);
+ }
+
+ static void unlock_file(FILE* file) {
+ funlockfile(file);
+ }
+
+ bool dlg_is_tty(FILE* stream) {
+ return isatty(fileno(stream));
+ }
+
+ static unsigned get_msecs(void) {
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return tv.tv_usec;
+ }
+
+// platform switch -- end unix
+#elif defined(WIN32) || defined(_WIN32) || defined(_WIN64)
+ #define DLG_OS_WIN
+ #define WIN32_LEAN_AND_MEAN
+ #define DEFINE_CONSOLEV2_PROPERTIES
+ #include <windows.h>
+ #include <io.h>
+
+ // thanks for nothing, microsoft
+ #ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
+ #define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004
+ #endif
+
+ // the max buffer size we will convert on the stack
+ #define DLG_MAX_STACK_BUF_SIZE 1024
+
+ static void WINAPI dlg_fls_destructor(void* data) {
+ dlg_free_data(data);
+ }
+
+ // TODO: error handling
+ static BOOL CALLBACK dlg_init_fls(PINIT_ONCE io, void* param, void** lpContext) {
+ (void) io;
+ (void) param;
+ **((DWORD**) lpContext) = FlsAlloc(dlg_fls_destructor);
+ return true;
+ }
+
+ static struct dlg_data* dlg_data(void) {
+ static INIT_ONCE init_once = INIT_ONCE_STATIC_INIT;
+ static DWORD fls = 0;
+ void* flsp = (void*) &fls;
+ InitOnceExecuteOnce(&init_once, dlg_init_fls, NULL, &flsp);
+ void* data = FlsGetValue(fls);
+ if(!data) {
+ data = dlg_create_data();
+ FlsSetValue(fls, data);
+ }
+
+ return (struct dlg_data*) data;
+ }
+
+ static void lock_file(FILE* file) {
+ _lock_file(file);
+ }
+
+ static void unlock_file(FILE* file) {
+ _unlock_file(file);
+ }
+
+ bool dlg_is_tty(FILE* stream) {
+ return _isatty(_fileno(stream));
+ }
+
+#ifdef DLG_WIN_CONSOLE
+ static bool init_ansi_console(void) {
+ HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
+ HANDLE err = GetStdHandle(STD_ERROR_HANDLE);
+ if(out == INVALID_HANDLE_VALUE || err == INVALID_HANDLE_VALUE)
+ return false;
+
+ DWORD outMode, errMode;
+ if(!GetConsoleMode(out, &outMode) || !GetConsoleMode(err, &errMode))
+ return false;
+
+ outMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+ errMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+ if(!SetConsoleMode(out, outMode) || !SetConsoleMode(out, errMode))
+ return false;
+
+ return true;
+ }
+
+ static bool win_write_heap(void* handle, int needed, const char* format, va_list args) {
+ char* buf1 = xalloc(3 * needed + 3 + (needed % 2));
+ wchar_t* buf2 = (wchar_t*) (buf1 + needed + 1 + (needed % 2));
+ vsnprintf(buf1, needed + 1, format, args);
+ needed = MultiByteToWideChar(CP_UTF8, 0, buf1, needed, buf2, needed + 1);
+ bool ret = (needed != 0 && WriteConsoleW(handle, buf2, needed, NULL, NULL) != 0);
+ free(buf1);
+ return ret;
+ }
+
+ static bool win_write_stack(void* handle, int needed, const char* format, va_list args) {
+ char buf1[DLG_MAX_STACK_BUF_SIZE];
+ wchar_t buf2[DLG_MAX_STACK_BUF_SIZE];
+ vsnprintf(buf1, needed + 1, format, args);
+ needed = MultiByteToWideChar(CP_UTF8, 0, buf1, needed, buf2, needed + 1);
+ return (needed != 0 && WriteConsoleW(handle, buf2, needed, NULL, NULL) != 0);
+ }
+#endif // DLG_WIN_CONSOLE
+
+ static unsigned get_msecs() {
+ SYSTEMTIME st;
+ GetSystemTime(&st);
+ return st.wMilliseconds;
+ }
+
+#else // platform switch -- end windows
+ #error Cannot determine platform (needed for color and utf-8 and stuff)
+#endif
+
+// general
+void dlg_escape_sequence(struct dlg_style style, char buf[12]) {
+ int nums[3];
+ unsigned int count = 0;
+
+ if(style.fg != dlg_color_none) {
+ nums[count++] = style.fg + 30;
+ }
+
+ if(style.bg != dlg_color_none) {
+ nums[count++] = style.fg + 40;
+ }
+
+ if(style.style != dlg_text_style_none) {
+ nums[count++] = style.style;
+ }
+
+ switch(count) {
+ case 1: snprintf(buf, 12, "\033[%dm", nums[0]); break;
+ case 2: snprintf(buf, 12, "\033[%d;%dm", nums[0], nums[1]); break;
+ case 3: snprintf(buf, 12, "\033[%d;%d;%dm", nums[0], nums[1], nums[2]); break;
+ default: buf[0] = '\0'; break;
+ }
+}
+
+int dlg_vfprintf(FILE* stream, const char* format, va_list args) {
+#if defined(DLG_OS_WIN) && defined(DLG_WIN_CONSOLE)
+ void* handle = NULL;
+ if(stream == stdout) {
+ handle = GetStdHandle(STD_OUTPUT_HANDLE);
+ } else if(stream == stderr) {
+ handle = GetStdHandle(STD_ERROR_HANDLE);
+ }
+
+ if(handle) {
+ va_list args_copy;
+ va_copy(args_copy, args);
+ int needed = vsnprintf(NULL, 0, format, args_copy);
+ va_end(args_copy);
+
+ if(needed < 0) {
+ return needed;
+ }
+
+ // We don't allocate too much on the stack
+ // but we also don't want to call alloc every logging call
+ // or use another cached buffer
+ if(needed >= DLG_MAX_STACK_BUF_SIZE) {
+ if(win_write_heap(handle, needed, format, args)) {
+ return needed;
+ }
+ } else {
+ if(win_write_stack(handle, needed, format, args)) {
+ return needed;
+ }
+ }
+ }
+#endif
+
+ return vfprintf(stream, format, args);
+}
+
+int dlg_fprintf(FILE* stream, const char* format, ...) {
+ va_list args;
+ va_start(args, format);
+ int ret = dlg_vfprintf(stream, format, args);
+ va_end(args);
+ return ret;
+}
+
+int dlg_styled_fprintf(FILE* stream, struct dlg_style style, const char* format, ...) {
+ char buf[12];
+ dlg_escape_sequence(style, buf);
+
+ fprintf(stream, "%s", buf);
+ va_list args;
+ va_start(args, format);
+ int ret = dlg_vfprintf(stream, format, args);
+ va_end(args);
+ fprintf(stream, "%s", dlg_reset_sequence);
+ return ret;
+}
+
+void dlg_generic_output(dlg_generic_output_handler output, void* data,
+ unsigned int features, const struct dlg_origin* origin, const char* string,
+ const struct dlg_style styles[6]) {
+ // We never print any dynamic content below so we can be sure at compile
+ // time that a buffer of size 64 is large enough.
+ char format_buf[64];
+ char* format = format_buf;
+
+ if(features & dlg_output_style) {
+ format += sprintf(format, "%%s");
+ }
+
+ if(features & (dlg_output_time | dlg_output_file_line | dlg_output_tags | dlg_output_func)) {
+ format += sprintf(format, "[");
+ }
+
+ bool first_meta = true;
+ if(features & dlg_output_time) {
+ format += sprintf(format, "%%h");
+ first_meta = false;
+ }
+
+ if(features & dlg_output_time_msecs) {
+ if(!first_meta) {
+ format += sprintf(format, ":");
+ }
+
+ format += sprintf(format, "%%m");
+ first_meta = false;
+ }
+
+ if(features & dlg_output_file_line) {
+ if(!first_meta) {
+ format += sprintf(format, " ");
+ }
+
+ format += sprintf(format, "%%o");
+ first_meta = false;
+ }
+
+ if(features & dlg_output_func) {
+ if(!first_meta) {
+ format += sprintf(format, " ");
+ }
+
+ format += sprintf(format, "%%f");
+ first_meta = false;
+ }
+
+ if(features & dlg_output_tags) {
+ if(!first_meta) {
+ format += sprintf(format, " ");
+ }
+
+ format += sprintf(format, "{%%t}");
+ first_meta = false;
+ }
+
+ if(features & (dlg_output_time | dlg_output_file_line | dlg_output_tags | dlg_output_func)) {
+ format += sprintf(format, "] ");
+ }
+
+ format += sprintf(format, "%%c");
+
+ if(features & dlg_output_newline) {
+ format += sprintf(format, "\n");
+ }
+
+ *format = '\0';
+ dlg_generic_outputf(output, data, format_buf, origin, string, styles);
+}
+
+void dlg_generic_outputf(dlg_generic_output_handler output, void* data,
+ const char* format_string, const struct dlg_origin* origin, const char* string,
+ const struct dlg_style styles[6]) {
+ bool reset_style = false;
+ for(const char* it = format_string; *it; it++) {
+ if(*it != '%') {
+ output(data, "%c", *it);
+ continue;
+ }
+
+ char next = *(it + 1); // must be valid since *it is not '\0'
+ if(next == 'h') {
+ time_t t = time(NULL);
+ struct tm tm_info;
+
+ #ifdef DLG_OS_WIN
+ if(localtime_s(&tm_info, &t)) {
+ #else
+ if(!localtime_r(&t, &tm_info)) {
+ #endif
+ output(data, "<DATE ERROR>");
+ } else {
+ char timebuf[32];
+ strftime(timebuf, sizeof(timebuf), "%H:%M:%S", &tm_info);
+ output(data, "%s", timebuf);
+ }
+ it++;
+ } else if(next == 'm') {
+ output(data, "%06d", get_msecs());
+ it++;
+ } else if(next == 't') {
+ bool first_tag = true;
+ for(const char** tags = origin->tags; *tags; ++tags) {
+ if(!first_tag) {
+ output(data, ", ");
+ }
+
+ output(data, "%s", *tags);
+ first_tag = false;
+ }
+ ++it;
+ } else if(next == 'f') {
+ output(data, "%s", origin->func);
+ ++it;
+ } else if(next == 'o') {
+ output(data, "%s:%u", origin->file, origin->line);
+ ++it;
+ } else if(next == 's') {
+ char buf[12];
+ dlg_escape_sequence(styles[origin->level], buf);
+ output(data, "%s", buf);
+ reset_style = true;
+ ++it;
+ } else if(next == 'r') {
+ output(data, "%s", dlg_reset_sequence);
+ reset_style = false;
+ ++it;
+ } else if(next == 'c') {
+ if(origin->expr && string) {
+ output(data, "assertion '%s' failed: '%s'", origin->expr, string);
+ } else if(origin->expr) {
+ output(data, "assertion '%s' failed", origin->expr);
+ } else if(string) {
+ output(data, "%s", string);
+ }
+ ++it;
+ } else if(next == '%') {
+ output(data, "%s", "%");
+ ++it;
+ } else {
+ // in this case it's a '%' without known format specifier following
+ output(data, "%s", "%");
+ }
+ }
+
+ if(reset_style) {
+ output(data, "%s", dlg_reset_sequence);
+ }
+}
+
+struct buf {
+ char* buf;
+ size_t* size;
+};
+
+static void print_size(void* size, const char* format, ...) {
+ va_list args;
+ va_start(args, format);
+
+ int ret = vsnprintf(NULL, 0, format, args);
+ va_end(args);
+
+ if(ret > 0) {
+ *((size_t*) size) += ret;
+ }
+}
+
+static void print_buf(void* dbuf, const char* format, ...) {
+ struct buf* buf = (struct buf*) dbuf;
+ va_list args;
+ va_start(args, format);
+
+ int printed = vsnprintf(buf->buf, *buf->size, format, args);
+ va_end(args);
+
+ if(printed > 0) {
+ *buf->size -= printed;
+ buf->buf += printed;
+ }
+}
+
+void dlg_generic_output_buf(char* buf, size_t* size, unsigned int features,
+ const struct dlg_origin* origin, const char* string,
+ const struct dlg_style styles[6]) {
+ if(buf) {
+ struct buf mbuf;
+ mbuf.buf = buf;
+ mbuf.size = size;
+ dlg_generic_output(print_buf, &mbuf, features, origin, string, styles);
+ } else {
+ *size = 0;
+ dlg_generic_output(print_size, size, features, origin, string, styles);
+ }
+}
+
+void dlg_generic_outputf_buf(char* buf, size_t* size, const char* format_string,
+ const struct dlg_origin* origin, const char* string,
+ const struct dlg_style styles[6]) {
+ if(buf) {
+ struct buf mbuf;
+ mbuf.buf = buf;
+ mbuf.size = size;
+ dlg_generic_outputf(print_buf, &mbuf, format_string, origin, string, styles);
+ } else {
+ *size = 0;
+ dlg_generic_outputf(print_size, size, format_string, origin, string, styles);
+ }
+}
+
+static void print_stream(void* stream, const char* format, ...) {
+ va_list args;
+ va_start(args, format);
+ dlg_vfprintf((FILE*) stream, format, args);
+ va_end(args);
+}
+
+void dlg_generic_output_stream(FILE* stream, unsigned int features,
+ const struct dlg_origin* origin, const char* string,
+ const struct dlg_style styles[6]) {
+ stream = stream ? stream : stdout;
+ if(features & dlg_output_threadsafe) {
+ lock_file(stream);
+ }
+
+ dlg_generic_output(print_stream, stream, features, origin, string, styles);
+ if(features & dlg_output_threadsafe) {
+ unlock_file(stream);
+ }
+}
+
+void dlg_generic_outputf_stream(FILE* stream, const char* format_string,
+ const struct dlg_origin* origin, const char* string,
+ const struct dlg_style styles[6], bool lock_stream) {
+ stream = stream ? stream : stdout;
+ if(lock_stream) {
+ lock_file(stream);
+ }
+
+ dlg_generic_outputf(print_stream, stream, format_string, origin, string, styles);
+ if(lock_stream) {
+ unlock_file(stream);
+ }
+}
+
+void dlg_default_output(const struct dlg_origin* origin, const char* string, void* data) {
+ FILE* stream = data ? (FILE*) data : stdout;
+ unsigned int features = dlg_output_file_line |
+ dlg_output_newline |
+ dlg_output_threadsafe;
+
+#ifdef DLG_DEFAULT_OUTPUT_ALWAYS_COLOR
+ dlg_win_init_ansi();
+ features |= dlg_output_style;
+#else
+ if(dlg_is_tty(stream) && dlg_win_init_ansi()) {
+ features |= dlg_output_style;
+ }
+#endif
+
+ dlg_generic_output_stream(stream, features, origin, string, dlg_default_output_styles);
+ fflush(stream);
+}
+
+bool dlg_win_init_ansi(void) {
+#if defined(DLG_OS_WIN) && defined(DLG_WIN_CONSOLE)
+ // TODO: use init once
+ static volatile LONG status = 0;
+ LONG res = InterlockedCompareExchange(&status, 1, 0);
+ if(res == 0) { // not initialized
+ InterlockedExchange(&status, 3 + init_ansi_console());
+ }
+
+ while(status == 1); // currently initialized in another thread, spinlock
+ return (status == 4);
+#else
+ return true;
+#endif
+}
+
+// small dynamic vec/array implementation
+// Since the macros vec_init and vec_add[c]/vec_push might
+// change the pointers value it must not be referenced somewhere else.
+#define vec__raw(vec) (((unsigned int*) vec) - 2)
+
+static void* vec_do_create(unsigned int typesize, unsigned int cap, unsigned int size) {
+ unsigned long a = (size > cap) ? size : cap;
+ void* ptr = xalloc(2 * sizeof(unsigned int) + a * typesize);
+ unsigned int* begin = (unsigned int*) ptr;
+ begin[0] = size * typesize;
+ begin[1] = a * typesize;
+ return begin + 2;
+}
+
+// NOTE: can be more efficient if we are allowed to reorder vector
+static void vec_do_erase(void* vec, unsigned int pos, unsigned int size) {
+ unsigned int* begin = vec__raw(vec);
+ begin[0] -= size;
+ char* buf = (char*) vec;
+ memcpy(buf + pos, buf + pos + size, size);
+}
+
+static void* vec_do_add(void** vec, unsigned int size) {
+ unsigned int* begin = vec__raw(*vec);
+ unsigned int needed = begin[0] + size;
+ if(needed >= begin[1]) {
+ void* ptr = xrealloc(begin, sizeof(unsigned int) * 2 + needed * 2);
+ begin = (unsigned int*) ptr;
+ begin[1] = needed * 2;
+ (*vec) = begin + 2;
+ }
+
+ void* ptr = ((char*) (*vec)) + begin[0];
+ begin[0] += size;
+ return ptr;
+}
+
+#define vec_create(type, size) (type*) vec_do_create(sizeof(type), size * 2, size)
+#define vec_create_reserve(type, size, capacity) (type*) vec_do_create(sizeof(type), capcity, size)
+#define vec_init(array, size) array = vec_do_create(sizeof(*array), size * 2, size)
+#define vec_init_reserve(array, size, capacity) *((void**) &array) = vec_do_create(sizeof(*array), capacity, size)
+#define vec_free(vec) (free((vec) ? vec__raw(vec) : NULL), vec = NULL)
+#define vec_erase_range(vec, pos, count) vec_do_erase(vec, pos * sizeof(*vec), count * sizeof(*vec))
+#define vec_erase(vec, pos) vec_do_erase(vec, pos * sizeof(*vec), sizeof(*vec))
+#define vec_size(vec) (vec__raw(vec)[0] / sizeof(*vec))
+#define vec_capacity(vec) (vec_raw(vec)[1] / sizeof(*vec))
+#define vec_add(vec) vec_do_add((void**) &vec, sizeof(*vec))
+#define vec_addc(vec, count) (vec_do_add((void**) &vec, sizeof(*vec) * count))
+#define vec_push(vec, value) (vec_do_add((void**) &vec, sizeof(*vec)), vec_last(vec) = (value))
+#define vec_pop(vec) (vec__raw(vec)[0] -= sizeof(*vec))
+#define vec_popc(vec, count) (vec__raw(vec)[0] -= sizeof(*vec) * count)
+#define vec_clear(vec) (vec__raw(vec)[0] = 0)
+#define vec_last(vec) (vec[vec_size(vec) - 1])
+
+static struct dlg_data* dlg_create_data(void) {
+ struct dlg_data* data = (struct dlg_data*) xalloc(sizeof(struct dlg_data));
+ vec_init_reserve(data->tags, 0, 20);
+ vec_init_reserve(data->pairs, 0, 20);
+ data->buffer_size = 100;
+ data->buffer = (char*) xalloc(data->buffer_size);
+ return data;
+}
+
+static void dlg_free_data(void* ddata) {
+ struct dlg_data* data = (struct dlg_data*) ddata;
+ if(data) {
+ vec_free(data->pairs);
+ vec_free(data->tags);
+ free(data->buffer);
+ free(data);
+ }
+}
+
+void dlg_add_tag(const char* tag, const char* func) {
+ struct dlg_data* data = dlg_data();
+ struct dlg_tag_func_pair* pair =
+ (struct dlg_tag_func_pair*) vec_add(data->pairs);
+ pair->tag = tag;
+ pair->func = func;
+}
+
+bool dlg_remove_tag(const char* tag, const char* func) {
+ struct dlg_data* data = dlg_data();
+ for(unsigned int i = 0; i < vec_size(data->pairs); ++i) {
+ if(data->pairs[i].func == func && data->pairs[i].tag == tag) {
+ vec_erase(data->pairs, i);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+char** dlg_thread_buffer(size_t** size) {
+ struct dlg_data* data = dlg_data();
+ if(size) {
+ *size = &data->buffer_size;
+ }
+ return &data->buffer;
+}
+
+void dlg_set_handler(dlg_handler handler, void* data) {
+ g_handler = handler;
+ g_data = data;
+}
+
+dlg_handler dlg_get_handler(void** data) {
+ *data = g_data;
+ return g_handler;
+}
+
+const char* dlg__printf_format(const char* str, ...) {
+ va_list vlist;
+ va_start(vlist, str);
+
+ va_list vlistcopy;
+ va_copy(vlistcopy, vlist);
+ int needed = vsnprintf(NULL, 0, str, vlist);
+ if(needed < 0) {
+ printf("dlg__printf_format: invalid format given\n");
+ va_end(vlist);
+ va_end(vlistcopy);
+ return NULL;
+ }
+
+ va_end(vlist);
+
+ size_t* buf_size;
+ char** buf = dlg_thread_buffer(&buf_size);
+ if(*buf_size <= (unsigned int) needed) {
+ *buf_size = (needed + 1) * 2;
+ *buf = (char*) xrealloc(*buf, *buf_size);
+ }
+
+ vsnprintf(*buf, *buf_size, str, vlistcopy);
+ va_end(vlistcopy);
+
+ return *buf;
+}
+
+void dlg__do_log(enum dlg_level lvl, const char* const* tags, const char* file, int line,
+ const char* func, const char* string, const char* expr) {
+ struct dlg_data* data = dlg_data();
+ unsigned int tag_count = 0;
+
+ // push default tags
+ while(tags[tag_count]) {
+ vec_push(data->tags, tags[tag_count++]);
+ }
+
+ // push current global tags
+ for(size_t i = 0; i < vec_size(data->pairs); ++i) {
+ const struct dlg_tag_func_pair pair = data->pairs[i];
+ if(pair.func == NULL || !strcmp(pair.func, func)) {
+ vec_push(data->tags, pair.tag);
+ }
+ }
+
+ // push call-specific tags, skip first terminating NULL
+ ++tag_count;
+ while(tags[tag_count]) {
+ vec_push(data->tags, tags[tag_count++]);
+ }
+
+ vec_push(data->tags, NULL); // terminating NULL
+ struct dlg_origin origin;
+ origin.level = lvl;
+ origin.file = file;
+ origin.line = line;
+ origin.func = func;
+ origin.expr = expr;
+ origin.tags = data->tags;
+
+ g_handler(&origin, string, g_data);
+ vec_clear(data->tags);
+}
+
+#ifdef _MSC_VER
+// shitty msvc compatbility
+// meson gives us sane paths (separated by '/') while on MSVC,
+// __FILE__ contains a '\\' separator.
+static bool path_same(char a, char b) {
+ return (a == b) ||
+ (a == '/' && b == '\\') ||
+ (a == '\\' && b == '/');
+}
+#else
+
+static inline bool path_same(char a, char b) {
+ return a == b;
+}
+
+#endif
+
+const char* dlg__strip_root_path(const char* file, const char* base) {
+ if(!file) {
+ return NULL;
+ }
+
+ const char* saved = file;
+ if(*file == '.') { // relative path detected
+ while(*(++file) == '.' || *file == '/' || *file == '\\');
+ if(*file == '\0') { // weird case: purely relative path without file
+ return saved;
+ }
+
+ return file;
+ }
+
+ // strip base from file if it is given
+ if(base) {
+ char fn = *file;
+ char bn = *base;
+ while(bn != '\0' && path_same(fn, bn)) {
+ fn = *(++file);
+ bn = *(++base);
+ }
+
+ if(fn == '\0' || bn != '\0') { // weird case: base isn't prefix of file
+ return saved;
+ }
+ }
+
+ return file;
+}