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// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "lib/jpegli/error.h"
#include <setjmp.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include "lib/jpegli/common.h"
namespace jpegli {
const char* const kErrorMessageTable[] = {
"Message codes are not supported, error message is in msg_parm.s string",
};
bool FormatString(char* buffer, const char* format, ...) {
va_list args;
va_start(args, format);
vsnprintf(buffer, JMSG_STR_PARM_MAX, format, args);
va_end(args);
return false;
}
void ExitWithAbort(j_common_ptr cinfo) {
(*cinfo->err->output_message)(cinfo);
jpegli_destroy(cinfo);
exit(EXIT_FAILURE);
}
void EmitMessage(j_common_ptr cinfo, int msg_level) {
if (msg_level < 0) {
if (cinfo->err->num_warnings <= 5 || cinfo->err->trace_level >= 3) {
(*cinfo->err->output_message)(cinfo);
}
++cinfo->err->num_warnings;
} else if (cinfo->err->trace_level >= msg_level) {
(*cinfo->err->output_message)(cinfo);
}
}
void OutputMessage(j_common_ptr cinfo) {
char buffer[JMSG_LENGTH_MAX];
(*cinfo->err->format_message)(cinfo, buffer);
fprintf(stderr, "%s\n", buffer);
}
void FormatMessage(j_common_ptr cinfo, char* buffer) {
jpeg_error_mgr* err = cinfo->err;
int code = err->msg_code;
if (code == 0) {
memcpy(buffer, cinfo->err->msg_parm.s, JMSG_STR_PARM_MAX);
} else if (err->addon_message_table != nullptr &&
code >= err->first_addon_message &&
code <= err->last_addon_message) {
std::string msg(err->addon_message_table[code - err->first_addon_message]);
if (msg.find("%s") != std::string::npos) {
snprintf(buffer, JMSG_LENGTH_MAX, msg.data(), err->msg_parm.s);
} else {
snprintf(buffer, JMSG_LENGTH_MAX, msg.data(), err->msg_parm.i[0],
err->msg_parm.i[1], err->msg_parm.i[2], err->msg_parm.i[3],
err->msg_parm.i[4], err->msg_parm.i[5], err->msg_parm.i[6],
err->msg_parm.i[7]);
}
} else {
snprintf(buffer, JMSG_LENGTH_MAX, "%s", kErrorMessageTable[0]);
}
}
void ResetErrorManager(j_common_ptr cinfo) {
memset(cinfo->err->msg_parm.s, 0, JMSG_STR_PARM_MAX);
cinfo->err->msg_code = 0;
cinfo->err->num_warnings = 0;
}
} // namespace jpegli
struct jpeg_error_mgr* jpegli_std_error(struct jpeg_error_mgr* err) {
err->error_exit = jpegli::ExitWithAbort;
err->emit_message = jpegli::EmitMessage;
err->output_message = jpegli::OutputMessage;
err->format_message = jpegli::FormatMessage;
err->reset_error_mgr = jpegli::ResetErrorManager;
memset(err->msg_parm.s, 0, JMSG_STR_PARM_MAX);
err->trace_level = 0;
err->num_warnings = 0;
// We don't support message codes and message table, but we define one here
// in case the application has a custom format_message and tries to access
// these fields there.
err->msg_code = 0;
err->jpeg_message_table = jpegli::kErrorMessageTable;
err->last_jpeg_message = 0;
err->addon_message_table = nullptr;
err->first_addon_message = 0;
err->last_addon_message = 0;
return err;
}
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